Humanities modern era Term Paper Example | Topics and Well Written Essays - 500 words

Humanities modern era - Term Paper Example as survived through all the ages in the history, yet it has become omnipresent in the present age because of the people’s ease of access to the tools that can be used for violence. This has had immense impact on the moral status of the individuals in the society. Gradually, people have become immune to activities they considered violent in the past like killing and raping. Violence seems to scar the era and to leave its mark on the humanities. Civil disorder has broken out in many countries in the Arabia in the recent years. People have started to revolt against their own leaders. Many a leaders have been killed including Saddam Hussain and Muammar Gaddafi by the people in an attempt to free the lands from the hold of dictators and alter the political and socioeconomic conditions of the countries for the better, but the consequences have been all but favorable even for the mutineers themselves. Millions of people in Iraq and Afghanistan have been killed by the American soldiers since the 9/11 incident. The population of the American soldiers that has been killed by the people in return is also not very insignificant. The popular culture as an essential element of the modern era has also played a cardinal role in the spread of violence. TV, computer and Internet are all technological milestones of the modern era. They have been frequently employed for the spread of violence in the society through sexually explicit videos and violent video games. Young generation has been targeted to develop the violent skills. The violent programs projected in the media are the most convenient and cost effective sources of in-house virtual education and training. Violence has spread to such a level that it has challenged people’s religious beliefs. The war on terror has been commenced solely for the purpose of achieving the very modernity, and has had many potentially negative implications for the Muslims all over the world. â€Å"Political Islam is now portrayed as a critique

The Effect of Poor Lightning Condition on Spelling Performance in 3rd Year Psychology Students Essay Example for Free

The Effect of Poor Lightning Condition on Spelling Performance in 3rd Year Psychology Students Essay The study was conducted to assess the disruption of cognitive performance such as spelling proficiency in a classroom with poor lighting condition. The participants were 31 students, who participated for course credit. It was hypothesized that participants undergoing the spelling test with poor lighting would report low results. The result of the mean is 4. 87 while the standard deviation resulted to 1. 91. We conclude that the results indicated that cognitive process such as vocabulary usage is greatly affected by poor lighting condition and is an affective instrument for determining how the subjects will respond to the given situation. The Effect of Poor Lightning Condition on Spelling Performance In 3rd year Psychology Students Vision is the ability of the brain and eye to detect electromagnetic waves within the visible range of light that makes them interpret this image as sight. Humans are a diurnal species (active in daytime) usually exposed to light while engaged in cognitive tasks. Light not only guides performance on these tasks through vision but also exerts non-visual effects that are mediated (Vandewalle, Maquet Dijk, 2009). People also can easily determine which changes in darkness and lightness are due to the physical properties f objects and the changes in illumination (Goldstein, 2008). The same research conducted by Vandewalle et al. (2009) also demonstrated that recent advancement studies ion vision which demonstrates that the wavelength, duration and intensity of light exposure adjust brain responses to (non-visual) cognitive tasks and adapts to different conditions. A similar study entitled â€Å"daylighting impacts on human performance in school† was conducted by Heschong, Wright Okura (2002) which aims to demonstrate a clear relationship between the presence of daylight and human performance. In humans, light enhances both alertness and performance during nighttime and daytime and influences regional brain function (Vandewalle Balteau, 2006). The results of these researches suggest that the adjustment of cognitive process and performance can vary to those people who are experiencing it with different and changing lighting condition as to support the claims of Makihara, Takizawa, Shirai Shimada (2007). Much of the studies conducted came with the conclusion that the more there is light, cognitive performance is absolute. In contrast, Landsberger (1955) found out in a study conducted by Hawthorne works that the workers’ productivity seemed to improve when changes were made and slumped when the study was concluded. Landsberger (1955) suggested that the productivity gain was due to the motivational effect of the interest being shown in them. However, it does not permit conclusions to be drawn about whether the lighting condition caused reductions in performance or was just a consequence of motivational effect in them (Simonson Brozek, 1948). In terms of effectiveness of lighting condition in increasing or reducing the performance of the subjects, the low lighting in the workplace may suggest that some of the subjects were just motivated in improving their performance to compete or may have been another case of demoralization. These drawn conclusions may suggest that this study is not that highly validated, thus, making it not that reliable also. The present study was an attempt to assess the disruption of cognitive performance, such as spelling proficiency in a classroom setting with no lighting. And the relationship of lighting and visual performance (Rea, 1992). Based on past experimental research on light as a modulator of cognitive brain function by Vandewalle et al. (2009) and related research on the effects of light exposure to brain responses (H. M. Parsons, 1974), it was expected that participants will end up with low scores in the spelling test due to low level of lighting. Method Participants Participants were 15 male and 16 female undergraduate students who attended San Beda College in Manila. The examiner used total enumeration in determining the participants. Total enumeration is selecting all members of the population without randomization. Apparatus The setting of the experiment was in classroom. It is of average size and the lighting is good. The room is also well ventilated. Then the participants were being ready for a spelling quiz. Instrument Participants were instructed to spell out the words given by the test instructor. The highest possible score on the test was 10. Design This experiment was a one-shot case design that is a type of pre-experimental design where a single group of test units is exposed to an experimental treatment and a single measurement is taken afterwards (Babylon, 2009) wherein the participants spelled in poor lighting and then the results was taken afterwards. Procedure The experimenter told the participants to prepare a paper for a spelling test. Then they proceeded with the experiment which is to spell words with the lights turned off. After the spelling quiz was done, the experimenter then opened the lights and then the results of the tests were checked. Results  The effect of poor lighting condition on spelling performance was assessed by finding the mean and standard deviation of the statistical data. The mean resulted to 4. 87 while having a standard deviation of 1. 91. Discussion The result of this study demonstrated that lighting condition greatly affects the cognitive performance of the students. As expected, majority of the participants garnered low scores during the unlighted spelling tests. Past research suggests that lighting conditions affects cognitive processes that tend to focus on how people would respond to that kind of situation (Vandewalle Balteau, 2006). The results of the present study support it because it demonstrates the validation of the past research and thus making it also reliable. In contrast to the study conducted by Landsberger (1955), which implies that the performance varies to the individual regardless of lighting condition, the results of the present study refute this idea. The results basically tell us that having the spelling test on unlighted condition will cause a poor cognitive performance. Although the hypothesis in this study was supported, the study has a limitation. No controls were taken to ensure that lighting condition experiment could occur into two experimental conditions. It is only a one-shot case study making it less dependable in stating whether a change in the outcome or dependent variable has taken place. In conclusion, the findings of this study are consistent with the claim of researchers such as (Vandewalle, Maquet Dijk, 2009) that light not only guides performance on these tasks through vision but also exerts non-visual effects that affects the human cognition. Light really enhances both alertness and performance during nighttime and daytime as the claims of the study of Heschong et al. (2002) states that daylighting impacts human performance in school. Lighting condition plays a large role in cognition not just only by giving us vision or sight as to go on with perception but also the scientific discovery that light exposure dynamically enhances brain responses.

Smart Transport System Based Upon Autonomous Road Vehicles

Smart Transport System Based Upon Autonomous Road Vehicles INTRODUCTION People have a high reliance on car for their daily travel to work, shopping, tour and many other places [1]. More than 50% of worlds population lives in cities and more vehicles are on the road causing congestion problems and accidents. Therefore, there is a need for more safe and efficient means of transportation. The new technologies are replacing decade old transportation frameworks and operators with computerization and automation. Intelligent Transportation System (ITS) is an innovative method that utilizes sensors movements, artificial intelligence, and human management together which will help the autonomous vehicle to drive without human intervention [2]. Autonomous vehicles will be seen soon on our roads communicating with nearby vehicles and warn each other by understanding the conditions ahead. Many cars, for example, the Tesla Model S and the Volvo XC90 has already started including propelled self-driving capacities, and this is expected to increase in coming years [3]. In this paper two use case scenarios of autonomous vehicles are discussed. The first use case discusses about an autonomous vehicle valet parking. Parking a vehicle is considered as one of the difficult task in driving. This includes finding the parking slot and park without collision. The proposed system will allow the driver to leave the vehicle when he/she reaches the destination and the vehicle will park itself in a parking slot. The second use case discusses an autonomous vehicle that can drive without human intervention in an unknown environment. The use cases included are obstacle avoidance, backward moving and overtaking. 2.USE CASE SCENARIOS 2.1 AUTONOMOUS VEHICLE VALET PARKING The number of vehicles on road is increasing rapidly causing congestion problems and pollutions. One of the main reasons for this is lack of car parking and time consumed to find the parking slots. This paper discusses the driving and parking of an autonomous vehicle to a car parking slot without human intervention. An autonomous valet parking will allow the driver to leave the vehicle when he/she reaches the destination and will park the vehicle in a parking slot. The sensors will sense obstacles in its way and will steer around them to avoid collision. It will also notify the driver after parking and locking the door automatically through an app. The proposed system will help the driver who is in a hurry to attend a meeting or watch movie, who doesnt want his/her time to waste checking for parking area and to drive and park there. There are three systems in the vehicle for the autonomous vehicle valet parking [6]. (i) Server System The server system will generate the different driving path to the nearest parking slot and will provide it to the driver through the mobile application. The driver can select the preferred path and vehicle will drive through that path. (ii) Mobile System The driver will be able to monitor the vehicle and check whether it is finding any difficulty to reach the parking slot. The vehicle will also notify the driver once when it has reached the parking slot. (iii) Vehicle Control System The control system will generate the control signals such as steering control, gear change, brakes and speed control required for the movement of the vehicle through the provided path. It should also generate control signals to help the car park in the provided slot. Figure 1: Autonomous vehicle parking system 2.1.1 DESIGN ANALYSIS AND ALGORITHM 2.1.1.a. PARKING SLOT SELECTION Once the driver has reached the destination the driver should request for the nearest parking and reserve the parking slot. The algorithm for this is shown in figure 1.1 [6]. Step 1: Driver request for the parking guidance. The parking slot availability in the parking garage should be updated every time in the data base. The parking slot can detect whether it is occupied with vehicle or not by using an IR sensor in the parking slot. The IR sensors will be connected to micro-controllers. The microcontrollers will communicate to the central server system using ESP8266 which contains the data base of the parking slot availability. ESP8266 is a low-cost Wi-Fi chip which will give micro-controller access to communicate with the Wi-Fi network. Along with the number of free parking lots, parking cost in different parking garage will also be stored in the database. The parking guidance is requested by the driver using the navigation system which will be embedded with sim cards inside the vehicle. BMW already have sim card embedded cars [8]. There will be GPS module inside the navigation system which will give the current location of the car. This location of the vehicle, will help to find the nearest parking fa cilities near it. The distance and time to reach each parking garage are calculated by the already programmed navigation device. It will also provide the parking fare for each parking garage. The driver can then select the appropriate parking slot based on his convenience. Step 2: Reserve the parking slot Once the parking slot has been selected by the driver, it should be reserved otherwise there are chances for the parking slot to be occupied by some other car before the vehicle reaches the selected slot. The central server system should be updated once the driver has reserved parking slot. The reservation should be done using the number plate of the vehicle. Sometimes, there might be more than one reservation request for the same parking slot at the same. So, there are chances to get the reservation declined for other customers. In that case the driver can select another parking slot. The vehicle can also go to the parking slot without reservation as well. But there will be a risk of the parking slot to be occupied before the vehicle arrives the parking slot. Step 3: Start the navigation to the parking slot. Once the parking slot has been selected by the driver, he/she can leave the car and the car will navigate to the selected parking slot. Figure 1.1. Algorithm for parking slot selection 2.1.1.b. PARKING PATH FOLLOWING Once the parking slot has been selected the next step is to guide the vehicle to the parking slot. In this paper [6], a graph data structure is used, which will generate driving path using 4D kinematics (i, j, ÃŽÂ ¸, R). The i and j represents the centre co-ordinates of the vehicle and ÃŽÂ ¸ is the heading angle value of the vehicle. To avoid the obstacles while following the path to the parking slot laser scanner sensors (LMS15) are used. These sensors can see the obstacles within 40 m distance and an angular range of 0-1900. The sensors are fitted on both sides in the front and rear side of the vehicle. The obstacle avoidance path is generated by the server system. The figure 1.3. [6] shows the obstacle detecting and avoiding path. Figure 1.3. Obstacle detecting and avoiding path [6] The path generated by the server system consists of location of the vehicle and its heading angle value (ÃŽÂ ¸). The vehicle control system will generate signals to control the steering of the vehicle depending on the heading angle value and location of the vehicle. The steering angle should be calculated for this. The formula for steering angle is shown below [6]. ÃŽÂ ¸s = ÃŽÂ ¸3 ÃŽÂ ¸2  ­- ÃŽÂ ¸1  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚     Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   2 ÃŽÂ ¸s = Steering angleÃŽÂ ¸3 = lateral error angle of vehicle location  Ã‚  Ã‚   ÃŽÂ ¸2 = look-ahead way point heading angle  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   ÃŽÂ ¸1 = vehicle heading angle Figure 1.4. [6] shows the driving path followed by the vehicle and the location of the vehicle. Figure 1.4. Driving path followed by the vehicle [6] The speed will also be controlled by the control system. The speed will be reduced to 8 km/hr once the car has entered the parking garage. The car will be notified when it reaches the parking garage by the GPS module installed in the navigation system. The laser scanner sensors can detect the moving obstacles as well. When the vehicle has detected the moving object (e.g. pedestrian) it will stop and wait until it has crossed the road. 2.1.1.c. PARKING AT THE SELECTED PARKING SLOT The next step after reaching the parking slot is the parking at the selected slot. The vehicle control systems consist of two levels [7]. 1. Low level control Low level control is the control of motion which includes steering wheels control, speed control and moving in a proposed distance. 2. High level control High level control is computer vision based control. A trajectory path is formed showing the vehicle direction to park it in the selected slot. To describe the car parking, bi-cycle model is used [7]. This model is commonly used to describe four wheeled vehicles. Rear drive wheel of this model cannot be rotated. To control the vehicle movement the front wheel will be rotated about the vertical axis following the trajectory path. It is assumed that the vehicle is moving on a horizontal and flat surface. Figure 1.5. Bi-cycle model of four wheeled vehicles The figure 1.5. shows the bi-cycle model of four wheeled vehicles [7]. The co ordinate system is represented as V, where x and y represent the co-ordinate points in that system. L= distance between the front and rear wheels ÃŽÂ ³ = steering angle ÃŽÂ ¸ = angle between xv and x v = velocity of the vehicle ICR instantaneous centre of rotation of the vehicle Parking of the car can be done in two ways. [7] 1.Parallel parking method. 2.Perpendicular parking method. Parallel parking method A precise path should be generated to minimize the parking area. The vehicle should move along two arcs created by the high level control without straight-line section between them. A maximum rotational angle of the steering wheels is required to achieve this. The figure 1.6. shows the parallel parking method [7]. Figure 1.6. Parallel parking method [7] The circle radius is calculated using the steering angle (ÃŽÂ ³). Circle radius (R1) = L2tgÃŽÂ ³ Ls1 and Ls2 are the safety boundaries, so the vehicle will not hit the front and back corner of the vehicle while parking. L1, L2, L3 and L4 are the boundary dimensions. The trajectory parking length (S)can be calculated to park the vehicle in the parking slot without colliding on the obstacles. The formula to obtain the trajectory parking length is given below. S = Ls1 + L1 + L2 + L3 + L4 + Ls2 Perpendicular parking method Perpendicular parking method is almost like the parallel parking method. This method reduces the parking area required for parking. The figure 1.7. shows the perpendicular parking method. Figure 1.7. Perpendicular parking method [7] The centre axel wheel should steer along the arc with the radius (R2) value given below to park in a safe condition. R2 = When vehicle reaches point A,for successful completion of parking, the steering wheels should be controlled by the steering. The gear should be in reverse gear and continue until the safe region. There are safety zones LS as in the parallel parking method. The trajectory parking length (S)can be calculated to park the vehicle in the parking slot without colliding on the obstacles. The formula to obtain the trajectory parking length is given below. S = R1 + L2 + LS + 2.1.1.d. NOTIFYING THE DRIVER AFTER PARKING After the car, has been parked in the parking slot, the driver should be notified that the car is safely parked. The sim card embedded in the system will help to notify the driver through SMS or mobile app that it has arrived the parking slot safely. This will help the driver to track the vehicle and ensure that it has reached the parking slot safely. 2.1.2 CHALLENGES AND DESIGN ISSUES IN THE PROPOSED SYSTEM Challenges (i) One of the main challenges in the proposed system is that the driver can only access the parking garages which has been saved in the central server system. (ii) In the proposed system, the vehicle will not come to pick the driver. He/she should go to the parking slot to find the car. This can be included in the future development. Design Issues (i) Sometimes GPS might fail to work in that case the autonomous car might fail to find its direction. (ii) Infrared sensors are expensive and sometimes fail to work due to temperature change. 2.1.3. VEHICLES THAT HAS BEEN USING AUTOMATED VEHICLE VALET PARKING Using digital mapping technology, BMW i3 is about to launch their new car [9] that can park in multi-storey parking garages. This fully autonomous vehicle will drive until it detects a free parking space. Their new Remote Valet Parking Assistant will parks the i3 without any driver assistance. The new car can also detect the moving obstacles and falsely parked car using its LiDAR sensors and drive accordingly without colliding with the obstacles. The car will not notify the driver it has reached the parking slot is one of the drawback in their features. 2.2 AUTONOMOUS VEHICLE NAVIGATION IN UNKNOWN ENVIRONMENT. A fully automatic vehicle should be able to drive by itself and for that it should sense, control, observe and react to its environment. This paper describes an autonomous vehicle that can drive without human intervention in an unknown environment. The use cases included are obstacle avoidance, backward moving and overtaking. The car will reach its destination by avoiding obstacles and following the path lane. A fuzzy logic control technology is used in this paper which will receive the required information from the sensors which will sense the obstacles in its way and the environmental changes. A GPS module is also used to track the position of the vehicle. The system will also control the speed, brake and steering effectively. 2.2.1 DESIGN ANALYSIS AND ALGORITHM The proposed system is divided into two units [5] Fuzzy logic control unit Computer vision unit. The block diagram of the proposed unit is shown in the figure 2.1. [5]. Figure 2.1. Block diagram of the proposed system [5] 2.2.1.a. FUZZY LOGIC CONTROL UNIT Autonomous cars are very complex to design. In this system, fuzzy logic is used to generate logical control signals from the input analog signals. Fuzzy logic is widely used in artificial intelligence. There are many alternative approaches such as genetic algorithm and neural network, but fuzzy logic has the merit that, it can be easily understood by the human operators. The block diagram of the fuzzy logic control unit is shown in figure 2.2. Figure 2.2. Fuzzy Logic Control Unit [4] The proposed system consists of two ultrasonic sensors for recognising the obstacles and measuring the distance between the obstacle and vehicle. Ultrasonic sensors produce ultrasonic waves, which will not produce any sound pollution/environmental pollution. Its also inexpensive. A H-Bridge is used to control the steering motor and the back motor. Webcam is used to see and follow the road lane path. The steering angle is measured and controlled by a potentiometer. The GPS receiver senses the position of the vehicle and is given to the microcontroller. This will help the micro-controller to know whether the vehicle has reached its destination or not. The steering and speed commands are combined and based on this the vehicle will move through the lane. The speed of the vehicle is the most important part while driving. The speed of the vehicle depends on many external factors such as environmental condition, road condition and car condition. For a normal autonomous car, it should have an auto-braking system, auto-speed control system and auto-steering system. These systems depend on different factors like environmental condition, car condition, road condition and so on. The fuzzy logic control unit will control the speed, brake, and steering based on these factors. The figure 2.3. [4] below shows the fuzzy logic controller controlling the systems based on the environmental condition and car condition. Figure 2.3. Fuzzy Logic Controller [4] Auto-braking System The auto-braking system is provided in autonomous car to avoid collision. The ultrasonic sensors will sense the distance between the obstacle and the car and if it is not in a safe distance the car will either stop or reduce the speed. The normal speed limit is set as 0 60 km/hr and the minimum distance between the car and the obstacle is maintained at 5 10 m. This is selected as per the traffic safety authorities. Auto- speed System Speed of the car is controlled on various factors such as environmental condition and car condition. Environmental condition and car condition will be between the range shown below and the car should choose the speed accordingly. Environmental Conditions: Rains falling: (0 200) mm. Winds Speed: (0 150) km/h. Rain sensors are used to sense the rain. The sensors can tell when it is raining depending on the rain drops falling on the wind shield depending on the light reflected. If there are more rain drops on the wind shield less light will be reflected to the rain sensor. Car Condition: Weight (including passengers): (1600 1900) kg. Engine Heat: (-25 65) à ; c. A weight sensor can be used in the seats so that it will sense how many passengers are there in the seat and the vehicle can control the speed. All these factors are given a rating between 0 and 10 [4]. If the conditions are bad, the rating will be between 0-3 and if the conditions are good, then the rating will be between 7-10. The micro-controller will be pre-programmed in such a way that it will be indicated when its raining, or when the air content in the tire is less and the speed of the car will be controlled according to that. Auto-Steering control The steering control is the main part of the autonomous car. The steering is controlled in such a way that; it will follow the trajectory or path to the destination generated by the computer vision unit. Obstacle Avoidance The main feature that should be incorporated in an autonomous vehicle is obstacle avoidance to avoid collision. There are two type of obstacles static and moving obstacles. The obstacles are sensed by the ultrasonic sensors which are connected at the right and left side of the vehicle at an angle of +45o and -45o. The distance is measured using fuzzification. The fuzzy sets used are adjacent, medium and far. The range is set between 25 m and 85 m and is determined by the sensor and the dimension of vehicle [4]. Any measured value by the sensor that is below 25 m is set as minimum value and any measured value exceeding 85 m is set as maximum value. To determine in which fuzzy set (near, medium or far) the measured sensor value belong to is determined using triangular membership function. The equation for that is given below [4]. The speed control and steering control signals are got as an output from the controller which are then given to the steering motor and back motor. The steering is controlled by the steering motor. The steering will be turned according to the steering control signals. The steering angle is controlled by the potentiometer. The digitized value of steering angle decision is shown below. Large Left 120 Small Left 145 Straight 170 Small Right 195 Large Right 220 Figure 2.4. [4] shows the graphical representation of the steering angle decision. Figure 2.4. Graphical representation of the steering angle decision [4] Similarly, the speed is controlled by the back motor and three commands are used for this Slow, Medium and Fast. The values for this is shown below and is decided by the back motors duty cycle values for pulse width modulated signal. Slow 20 Medium 50 Fast 80 Figure 2.5. [4] shows the graphical representation of speed control decision Figure 2.5. Graphical representation of speed control decision[4] Destination Arrived A GPS receiver is attached to the controller to know whether the autonomous car has arrived its destination. The destination will be already decided and entered by the user to the micro controller by using a mobile app. The car and the user can communicate to each other using the 4G network. A SIM card will be already embedded inside the car. Once the car has arrived the destination the car will notify the user. 2.2.1.b COMPUTER VISION UNIT Computer vision unit does the decision-making process in the system. In this paper, overtaking and backward process are discussed. Computer vision unit extracts information from the images taken from multiple cameras and makes decision when to overtake other vehicles and when to reverse the car. Backward direction The figure 2.6. [5] shows the algorithm for backward process of the vehicle. Figure 2.6. Algorithm for backward process [5] Step 1: Decide whether the car should take backward direction or not. Step 2: If yes, the car should select the speed of the vehicle to move in backward direction. If not, then the car continues to move in forward direction. Step 3: After selecting the speed of the backward movement, the next step is to select the direction of the backward movement. If the car wants to move left, then steering should be turned to right and if the car wants to move right then the steering should be turned left. If the wants to move backward in a straight direction then the steering should be kept straight i.e., no change for the steering. Step 4: After the step 3 the car will check the backward process has been completed and the process comes to an end. Overtaking Overtaking is a difficult process normally done by human drivers. To overtake another car the vehicle should maintain a certain speed limit and distance between the two cars should be in a safe distance so that it will not collide. The algorithm for a safe overtaking is given in the figure 2.7. [5]. Figure 2.7. Algorithm for overtaking [5] Step 1: The autonomous car will decide whether to overtake the other car in front of it which will be moving slower than it. If yes, then it should select the overtaking speed. If not, then the car should continue the previous speed. Step 2: The autonomous car should change to the left lane after deciding the speed to overtake. It should check through the rear camera that no other vehicles are trying to overtake it in the left lane, otherwise the two cars will collide with each other. Step 3: After changing to the left lane the autonomous car should continue to move in straight direction. It should check whether it has overtaken the slow vehicle. If yes, then it should change to the right lane maintaining a safe distance. If not, it should continue to move in straight direction and keep on monitoring whether it has overtaken the slow vehicle. Step 4: After the change of lane the autonomous car should check whether it has completed the lane changing. If yes, then the process comes to an end. 2.2.2 CHALLENGES AND DESIGN ISSUES IN THE PROPOSED SYSTEM Challenges (i) In the proposed system, only the algorithm for overtaking and backward movement has discussed. Artificial intelligence algorithm has not been discussed. (ii) In the proposed system, there is detection of traffic signals which can be incorporated in the future development Design Issues (i) Sometimes GPS might fail to work in that case the autonomous car might fail to find its direction. (ii) Ultrasonic sensors can produce some errors when sensing objects which might result in collision. 2.2.3 AUTONOMOUS CARS ALREADY IN MARKET Fully autonomous car will be on our road by 2021. Many car companies like tesla, google, BMW has already started developing such cars. Googles self-driving car has completed 1,500,000 miles in full automated mode on mar 2016 [10]. This car has no steering and brake pedal. It has laser and radar sensors to sense the obstacles and also have a back-up steering, braking, and computing system if any of these fails. 3. CONCLUSION To conclude, we will be able to see self-driving cars on our roads soon, addressing all the road problems like congestions, parking problem, accidents and so on. In this paper two use cases have been discussed. In the first use case, a server system, mobile system and vehicle control system are used for autonomous vehicle valet parking. The proposed system will drop the diver/user at his/her destination and will park the vehicle in the parking slot selected by the user. The future development of the system can be made by making the car to go and pick the user from the parking slot, when he/she is ready to leave. The second use case describes an autonomous vehicle that can drive without human intervention in an unknown environment using fuzzy logic. The use cases included were obstacle avoidance, backward moving and overtaking. The block diagram and algorithm of the proposed system are described in the paper. REFFERENCES [1] C. F. Lin, J. C. Juang and K. R. Li, Active collision avoidance system for steering control of autonomous vehicles, in IET Intelligent Transport Systems, vol. 8, no. 6, pp. 550-557, Sept. 2014. [2] Mohammad Abdul Qayum, Nafiul Alam Siddique, Mohammad Abtiqul Haque and A. S. M. Tayeen, Control of autonomous cars for intelligent transportation system, 2012 International Conference on Informatics, Electronics Vision (ICIEV), Dhaka, 2012, pp. 377-382. [3] B. Brown, The Social Life of Autonomous Cars, in Computer, vol. 50, no. 2, pp. 92-96, Feb. 2017. [4] U. Farooq, K. M. Hasan, M. Amar and M. U. Asad, Design and implementation of fuzzy logic based autonomous car for navigation in unknown environments, 2013 International Conference on Informatics, Electronics and Vision (ICIEV), Dhaka, 2013, pp. 1-7. [5] A. H. A. Widaa and W. A. Talha, Design of Fuzzy-based autonomous car control system, 2017 International Conference on Communication, Control, Computing and Electronics Engineering (ICCCCEE), Khartoum, Sudan, 2017, pp. 1-7. [6] K. W. Min and J. D. Choi, Design and implementation of an intelligent vehicle system for autonomous valet parking service, 2015 10th Asian Control Conference (ASCC), Kota Kinabalu, 2015, pp. 1-6. [7] D. M. Filatov, E. V. Serykh, M. M. Kopichev and A. V. Weinmeister, Autonomous parking control system of four-wheeled vehicle, 2016 IEEE V Forum Strategic Partnership of Universities and Enterprises of Hi-Tech Branches (Science. Education. Innovations), St. Petersburg, 2016, pp. 102-107. [8] The Economist (2014). The connected car smartphones on wheels Available: http://www.economist.com/news/technology-quarterly/21615060-way-cars-are-made-bought-and-driven-changing-mobile-communications [Accessed 27/02/2017] [9] Autocar (2014). BMW reveals new self-parking autonomous technology. Available:http://www.autocar.co.uk/car-news/industry/bmw-reveals-new-self-parking-autonomous-technology. [Accessed 01/03/2017] [10] Wikipedia, the free encyclopedia (2017). Autonomous car Available:https://en.wikipedia.org/wiki/Autonomous_car [Accessed 04/03/2017]

Dial-Up Scripting Command Language :: essays research papers

Table of Contents 1.0 Overview 2.0 Basic Structure of a Script 3.0 Variables 3.1 System Variables 4.0 String Literals 5.0 Expressions 6.0 Comments 7.0 Keywords 8.0 Commands 9.0 Reserved Words 1.0 Overview Many Internet service providers and online services require you to manually enter information, such as your user name and password, to establish a connection. With Scripting support for Dial-Up Networking, you can write a script to automate this process. A script is a text file that contains a series of commands, parameters, and expressions required by your Internet service provider or online service to establish the connection and use the service. You can use any text editor, such as Microsoft Notepad, to create a script file. Once you've created your script file, you can then assign it to a specific Dial-Up Networking connection by running the Dial-Up Scripting Tool. 2.0 Basic Structure of a Script A command is the basic instruction that a script file contains. Some commands require parameters that further define what the command should do. An expression is a combination of operators and arguments that create a result. Expressions can be used as values in any command. Examples of expressions include arithmetic, relational comparisons, and string concatenations. The basic form of a script for Dial-Up Networking follows: ; ; A comment begins with a semi-colon and extends to ; the end of the line. ; proc main ; A script can have any number of variables ; and commands variable declarations command block endproc A script must have a main procedure, specified by the proc keyword, and a matching endproc keyword, indicating the end of the procedure. You must declare variables before you add commands. The first command in the main procedure is executed, and then any subsequent commands are executed in the order they appear in the script. The script ends when the end of the main procedure is reached. 3.0 Variables Scripts may contain variables. Variable names must begin with a letter or an underscore ('_'), and may contain any sequence of upper- or lower-case letters, digits, and underscores. You cannot use a reserved word as a variable name. For more information, see the list of reserved words at the end of this document. You must declare variables before you use them. When you declare a variable, you must also define its type. A variable of a certain type may only contain values of that same type. The following three types of variables are supported: Type Description integer A negative or positive number, such as 7, -12, or 5698. string A series of characters enclosed in double-quotes; for example, "Hello world!" or "Enter password:". Dial-Up Scripting Command Language :: essays research papers Table of Contents 1.0 Overview 2.0 Basic Structure of a Script 3.0 Variables 3.1 System Variables 4.0 String Literals 5.0 Expressions 6.0 Comments 7.0 Keywords 8.0 Commands 9.0 Reserved Words 1.0 Overview Many Internet service providers and online services require you to manually enter information, such as your user name and password, to establish a connection. With Scripting support for Dial-Up Networking, you can write a script to automate this process. A script is a text file that contains a series of commands, parameters, and expressions required by your Internet service provider or online service to establish the connection and use the service. You can use any text editor, such as Microsoft Notepad, to create a script file. Once you've created your script file, you can then assign it to a specific Dial-Up Networking connection by running the Dial-Up Scripting Tool. 2.0 Basic Structure of a Script A command is the basic instruction that a script file contains. Some commands require parameters that further define what the command should do. An expression is a combination of operators and arguments that create a result. Expressions can be used as values in any command. Examples of expressions include arithmetic, relational comparisons, and string concatenations. The basic form of a script for Dial-Up Networking follows: ; ; A comment begins with a semi-colon and extends to ; the end of the line. ; proc main ; A script can have any number of variables ; and commands variable declarations command block endproc A script must have a main procedure, specified by the proc keyword, and a matching endproc keyword, indicating the end of the procedure. You must declare variables before you add commands. The first command in the main procedure is executed, and then any subsequent commands are executed in the order they appear in the script. The script ends when the end of the main procedure is reached. 3.0 Variables Scripts may contain variables. Variable names must begin with a letter or an underscore ('_'), and may contain any sequence of upper- or lower-case letters, digits, and underscores. You cannot use a reserved word as a variable name. For more information, see the list of reserved words at the end of this document. You must declare variables before you use them. When you declare a variable, you must also define its type. A variable of a certain type may only contain values of that same type. The following three types of variables are supported: Type Description integer A negative or positive number, such as 7, -12, or 5698. string A series of characters enclosed in double-quotes; for example, "Hello world!" or "Enter password:".

Sc300: Big Ideas in Science: from Methods to Mutation

Jennifer Rivera SC300: Big Ideas in Science: From Methods to Mutation Professor: Shalon Bull August 14, 2012 1. List all of the components of two of your meals. Meal #1 – Breakfast For breakfast I had a Tuna fish sandwich, with lettuce, two slices of tomato, sauteed onions, and Hellmann's mayonnaise. I also had approximately 10 ounces of Minute Maid Tropical fruit Juice. Meal #2 – Lunch My Lunch consisted of a grilled Tyson chicken breast fillets, with steamed mix vegetables, and 8 ounces of bottle purified Dasani water. 1A. Where did each component of your meal originate?List the country that each part of your meal came from. Meal #1 – Breakfast The origin of the Tuna fish sandwich is as follows; The bread for the sandwich was two slices of Holsum whole wheat bread which is made in Puerto Rico, one 5 ounce chicken of the sea tuna can which is made in San Diego California, The lettuce and tomato was locally grown on the US Virgin Islands St. Croix by local farmer s, the Hellmann’s Mayonnaise was made in New York and the Minute Maid Tropical fruit Juice is produced by the Coca Cola Bottling Co. f Atlanta, GA. Meal #2 – Lunch The Tyson Chicken Breast Fillets are from Springdale, Arkansas and the mix vegetables are locally grown on the US Virgin Islands St. Croix by local farmers. The Dasani water is produced by the Coca Cola Bottling Co. of Atlanta, GA. 1B. List where you purchased the products from. Being the St. Croix US Virgin Islands is only 84 square miles and has a population of about 60,000 people we only have two main grocery stores which are the same just two different locations, Plaza Extra East and Plaza Extra West.I do all my shopping for grocery in Plaza Extra East for the last 20 plus years. So Meal #1 – Breakfast, and Meal #2 – Lunch were all purchased from Plaza Extra East on St. Croix USVI. 1C. Consider the chain of events that took the product to get from the farm/laboratory to your table Being tha t St. Croix is located in the Caribbean, most of our foods supply come from the State of Florida and is ship by containers on ships. The fresh produce and bread are shipped from the island of Puerto Rico where they are made.The only thing that is grown on the Virgin Islands is fresh vegetables and some fruits. 2. What are some of the benefits of a global market and why? List at least 2 benefits, weighing any short-term and long-term impacts. Some of the benefits of global marketing would be that consumers would have a larger range of products to choose from. Another would be the opportunities to small companies which can expand to serve a global market instead of a small country. This would give consumers the opportunity to buy better products at lower cost.Another benefit would be that opening offices in other countries would provide jobs for locals in that country and for the country that is opening the office this means that they will be getting cheaper labor than that which they would pay in their home country for the same job. 3. What are some of the impacts of this global market and why? Considering both short-term and long-term impacts, provide at least 2 negative impacts. Some of the negative impacts that the global market can experience can be caused by poor management of these international markets and others can occur naturally like for example bad weather.Weather and natural disasters can affect the global market in many ways, for example a country like China which exports Rice, can experience bad weather for a year which would affect the production of rice, this would not only affect China economically but cause the global price of rice to rise and the availability of the produce to diminish. So can we as a Country trust the global market as our primary source of food? I would suggest developing the nation’s agriculture programs and the production of foods in our nation the United States of American, and all other countries should do the sa me.This would be like an emergency reserve in other words. Another negative impact would be regulating the rates of taxation from one country to another. For instance if the rates of taxes are higher in Mexico for an American company then the United States might then move that office to Brazil for example. This would affect the investments market for others which would affect the global market tremendously. 4. Consider the phrase Think Globally, Act Locally. What does it mean to you?This phrase in my opinion means that you are thinking beyond the horizon and understand the issues and needs of the entire world, but need to master and fix the issues of your own country before you can get involved with the rest of the world. I think that if we improve and expand our food production capabilities then we can move on to the global market and work together for the same cause which is to bring food to those places that lack it and so much desires it. 5. Has your research on the global marke t changed the way you will choose goods in the future?Why or why not? After my research on the global market I would say that I will not be changing the way I choose my goods in the future. I would still choose the things that I like and would not change these things just because a nation or country might be benefiting from my purchase more than another. The one thing that I now understand after my research is the reason why certain name brands of products are more expensive than others. The prices of products in the global market fluctuate based on the economical state of the producing country and the markets demands.I learned that the more money a country has the more food and better quality they get, this is why poor countries lack food, and even more have a smaller variety in the food choices. References J. C. Chavis. (April 2010) Negative Impacts of a Global Market for Investment. Retrieved from http://www. brighthub. com/money/investing/articles/69512. aspx â€Å"Economic Glo balization† UC Atlas of Global Inequality. Retrieved from http://ucatlas. ucsc. edu/economic. php Global Marketing. Retrieved from http://www. businessdictionary. com/definition/global-marketing. html

Free Essays on International Business

ADCP International Marketing/Special Studies 1. a. Customers are the focal point of all marketing activities. Organizations have to define products not as what they make or produce but as what they do to satisfy customers. Marketing Barbie dolls would require a marketer to consider the socioculture of its consumers. Sociocultural forces are the influences in a society and its culture that bring about change in attitudes, beliefs, norms, customs, and lifestyles. There are three issues that need to be addressed in decided who will purchase a Barbie doll in international markets. First, there are constant changes in population demographic characteristics-age, gender, race, and ethnicity. The U. S. has entered into another baby boom, with 76 million Americans aged 18 or younger. Other nations may have this same occurrence and this information would help in directing attention to those areas that have a high representation of children wanting a Barbie doll. Another population trend is the increasing multicultural nature of U .S. society. The number of immigrants into the United States has steadily risen during the last thirty years, thus, the emergence of cultures emulating the U.S. Another thing to consider would be the modification of marketing practices to reach ethnically diverse customers to eliminate language barriers. Second, cultural values need to be addressed so that marketers can try to monitor changes in consumers’ needs for Barbie dolls and its products (clothes, accessories, etc.) in the near future. For instance, Barbie dolls were very popular when I was younger (not that I played with them, I had a sister) and today, they are not because of increased competition of other toy and doll makers. Video games have also become very popular in favor of toys. b. When marketing beer internationally, a marketer may have to consider the political/legal environment of the country they are trying to solicit. Some politic... Free Essays on International Business Free Essays on International Business The term Globalization was first coined in the 1980’s. However, the definition of globalization varies in cultural, economical, environmental, political and social studies. According to Williamson, globalization in economical studies refers to an increasing integration of the global economy through factor and product markets by way of direct investment, financial flow and trade greatly aided by the deregulation of markets as well as the liberation of capital movement and trade (Williamson 1998,1). It is a driving force that is expected to affect the countries well being in terms of trade, employment and income as well as the values of dollar in relative to other currencies and so on. Based on a study on the globalization’s rankings in the world, New Zealand is currently rank at number 23. (Graham, Crocombe. Michael, Enright and Michael, Porter 1991,12) In the following paragraphs, there will be an explanation how the globalization affects the New Zealand’s trade with other countries, especially for multinational company’s competition in international trade, employment opportunities for New Zealanders and some reasons which are beneficial and harmful to New Zealand as a whole as well as some policies that should be taken into consideration by other businesses and the government in order to benefit from it. According to the definition of globalization above, it also is simply to understand that globalization refers to the shift a more integrated and interdependent world economy. Globalization has two main components: the globalization of markets and the globalization of production (Charles, Hill 2003,6). The globalization of markets means each the merging of distinct and separate national markets into one huge global marketplace. Each country can sell its products internationally by falling trade barriers. It provides a chance for local companies to compete in international trade by offering qualified goods and services. Wh... Free Essays on International Business ADCP International Marketing/Special Studies 1. a. Customers are the focal point of all marketing activities. Organizations have to define products not as what they make or produce but as what they do to satisfy customers. Marketing Barbie dolls would require a marketer to consider the socioculture of its consumers. Sociocultural forces are the influences in a society and its culture that bring about change in attitudes, beliefs, norms, customs, and lifestyles. There are three issues that need to be addressed in decided who will purchase a Barbie doll in international markets. First, there are constant changes in population demographic characteristics-age, gender, race, and ethnicity. The U. S. has entered into another baby boom, with 76 million Americans aged 18 or younger. Other nations may have this same occurrence and this information would help in directing attention to those areas that have a high representation of children wanting a Barbie doll. Another population trend is the increasing multicultural nature of U .S. society. The number of immigrants into the United States has steadily risen during the last thirty years, thus, the emergence of cultures emulating the U.S. Another thing to consider would be the modification of marketing practices to reach ethnically diverse customers to eliminate language barriers. Second, cultural values need to be addressed so that marketers can try to monitor changes in consumers’ needs for Barbie dolls and its products (clothes, accessories, etc.) in the near future. For instance, Barbie dolls were very popular when I was younger (not that I played with them, I had a sister) and today, they are not because of increased competition of other toy and doll makers. Video games have also become very popular in favor of toys. b. When marketing beer internationally, a marketer may have to consider the political/legal environment of the country they are trying to solicit. Some politic...

Angola essays

Angola essays Angola is a country on the southwest coast of Africa. Its official name is the Republic of Angola. The Congo River and Congo (Kinshasa) separate it from the rest of the country. Most of Angola's people live in rural areas and work on farms. Angola produces a variety of crops, including bananas, coffee, corn, sugar cane, and a starchy root called cassava. Angola also has many natural resources, including diamonds, iron ore, and petroleum. Luanda, the capital and largest city, is a major African seaport. A president is the most powerful official in Angola's government. The National assembly, the country's legislature, makes the laws. The people of Angola elect both the president and the National Assembly. The people in Angola are black Africans. The blacks belong to several ethnic groups, including the Ovimbundu, the Mbundu, the Kongo, and the Luanda-Chokwe. Before the nation became independent, more than 400,000 Europeans and mestizos (people of mixed black African and white ancestry) lived in Angola. Most Europeans fled during a civil war that began after the country achieved independence. The people who live in Angola's rural areas work as farmers and herders, and many raise just enough food for their own use. Most black Angolans speak a language that belongs to the Bantu language group. Europeans, mestizos, and some blacks speak Portuguese, the official language. About 90 percent of the people are Christians, mostly Roman Catholics. Others practice religions based on the worship of ancestors and spirits. Angola forms part of the large inland plateau of southern Africa. The country consists chiefly of hilly grasslands, but a rocky desert covers the south. Temperatures average about 70 F in January and about 60 F in June. From 40 to 60 inches of rain falls annually on the northern coast and in most of the interior. Only ...