Essay on The Meaning of Sexuality in Todays Society

The Meaning of Sexuality in Todays Society In today’s society things are being expressed and experienced at younger ages, than ever before in our time. Children and teenagers are discovering their sexuality at very early ages. Sexuality is the discovering of who you are and what makes you different from everybody else. Basically, discovering and accepting your sexuality is the gateway to adulthood.. Sexuality is the most profound meeting place of nature and culture. (Bordo 1) Sexuality permits us to be honest with ourselves and the people around us. Teenage sexuality involves many things, such as, the actual definition of sex, what factors influence teen attitudes, the information teenagers should know, the effects of†¦show more content†¦A survey showed on the average a male masturbates five times per week. Statitistics show that all males masturbate and four out of five females masturbate. Masturbation is a solution for sexual tension and self-stimulation. Some sex therapist believe tha tpeople who don not masturbate during adolexcence may be missing an important element in their sexual development. Also, sexuality is closey tied in with religion, morality, and culture. These three things are important aspects of a person’s life. So, in that case sexuality is a big deal, because it is hard enough to be a teenager without the worries about sex and fantasies. There are many things that influence a person’s sexuality, ecspecially teenagers. This is correct because teenagers, want so badly to fit in. They want to be the in crowd not the out crowd. We the society is in the middle of major changes, people are starting to see the world differently and what we use to see as reality, is no longer what the younger generation is seeing as reality. Reality has changed because sex is no longer seen as just the â€Å"cool†, thing to do, but has almost come to be understood as a rite of passage To teenagers it seems as when they become sexually active, then they have become an actual member of society. I believe television is one of the main causes for the change in society. Television is a twenty-four hours activity, that brain washes teenagersShow MoreRelatedThis essay will discuss Foucault’s and Bauldrillard’s views on tod ay’s society. Foucault sees the1100 Words   |  5 PagesThis essay will discuss Foucault’s and Bauldrillard’s views on today’s society. Foucault sees the current state of the society as a system of domination, while Baudrillard says that the society we knew has collapsed in to a world of images produced by the mass media. Both of them focus on the cultural dimension of the progression of the society and sees society as having moved on from modernity. 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The War Of 1905 And The United States - 863 Words

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Will the Earliest Hominid Please Standup Evoultion...

Will the Earliest Hominid Please Stand Up? Evolution Exposed Evolution and religion has been a disputable discussion over the decades. Religious believers simply discarded the idea that humans have came from swinging monkeys. Although it is a scientific theory, it is backed up by the heavy weight of scientific evidence. The first thing that one might consider is that religion is composed by thousands of individual memes, which supports myths, moralities, and complex ideas or memeplexes, which will never guarantee its authenticity. One can speculate over the idea of evolution and religious reasoning on how humans came about, but might only develop shaky synthesis and finally conclude the problem insoluble. Besides, at one time the†¦show more content†¦Today, creationism is once again on the rise, as part of a revival of populism in the United States. Evolution is the change in the inherited characteristic of biological populations over successive generations (Wikipedia). The most notable theory of evolution was Char les Darwin’s speculation about natural selection. Natural selection is the process by which nature rewards those individuals better adapted to their environments with survival and reproductive success, defined by Ker Than, a Senior Editor in TechNewsDaily on livescience.com. Darwin published the first edition of â€Å"The Origin of Species† in 1859, in which Darwin theorized how a bear can turn in to a whale by natural selection. I can see no difficulty in a race of bears being rendered, by natural selection, more aquatic in their structure and habits, with larger and larger mouths, till a creature was produced as monstrous as a whale, Darwin speculated (Than). Over one hundred fifty years after Darwin’s theory has been published, the evolution theory is still highly controversial. The idea didn’t go well with the public, Darwin was so embarrassed by the ridicule he received that the swimming-bear passage was removed from later editions of the book (T han). Darwin’s views brought him into fierce conflicts with others who continue to maintain that the account of divine creation contacted within the Bible was correct. According to Than, Darwin’s theory of evolution by natural selection is one of

The Psychology Behind the Film Primal Fear by Gary a...

Prepare yourself for a journey. Travel with me, as we explore the mind of a character named Roy played by Edward Norton in the film directed by Gregory Hoblit in 1996 Titled â€Å"Primal Fear†. In this film Roy suffers from a psychological disorder. As we travel on this journey deep into the mind of this character, we will begin to unlock the secrets that lay within. Discovering what psychological disorder Roy suffers from, how he thinks and his thought process from a bio-psychological perspective, and treatments for this disorder using cognitive behavior therapy. â€Å"Primal Fear† is the story of a young man who is accused of the murder of an archbishop. With all the evidence pointing towards him as the target suspect, an ambitious and vagarious†¦show more content†¦That clue lead me to the conclusion that Roy suffered from dissociative identity disorder (DID) formally known as multiple personality disorder (MPD). From a bio-psychological perspective dissociative identity disorder is characterized by the presence of two or more distinct or split identities or personality states that continually have power over the persons behavior. With dissociative identity disorder, theres also an inability to recall key personal information that is too far-reaching to be explained as mere forgetfulness; which we noticed in Aaron right before he transforms into Roy. With dissociative identity disorder, there are also highly distinct memory variations, which fluctuate with the persons split personality. The alters or different identities have their own age, sex, or race. Each has his or her own postures, gestures, and distinct way of talking. Roy and Aaron were completely opposite in almost every way imaginable. Roy spoke with confidence and authority whereas Aaron was unsure of himself and lacked confidence. While Roy took charge and became violent, Aaron on the other hand was passive and submissive and wou ld not hurt a fly. Sometimes the Alters are imaginary people; sometimes they are animals. As each personality reveals itself and controls the individuals behavior and thoughts, its called switching. Switching can take seconds to minutes to days. Along with the dissociation and

Home Security System Free Essays

string(71) " in a place where the path is likely to be interrupted by an intruder\." ACTIVE INFRARED MOTION DETECTOR FOR HOUSE SECURITY SYSTEM MIOR MOHAMMAD HAFIIZH BIN ABD. RANI UNIVERSITI MALAYSIA PAHANG ABSTRACT Nowadays, house security system becomes the best solution to overcome house intrusion problem when user is not in house. As we know, there are many types of house security system which is too expensive and difficult to use. We will write a custom essay sample on Home Security System or any similar topic only for you Order Now For that reason, an effective house security system at low cost is built where user can also program the security system by their own. This project is focusing on developing a house security system with an active infrared motion detector which is controlled by microcontroller Intel 8051. The overall project is divided into two parts. The first part is concern on the hardware development where all electronics component are connected via the circuit design using wrapping technique. An active infrared, the magnetic sensor, and keypad are the input components while buzzer, indicator, and LCD display are the output components where it’s all controlled by controller circuit. The second part is base on software programming to operate the hardware structure. Program for security system based on microcontroller Intel 8051 assembly language is assemble using ASM51 assembler to get the binary file thus, to load into external memory of the hardware structure via serial communication. The process of downloading and executing the program is done using HyperTerminal’s communication software to the microcontroller serial port. In order to achieve the best house security system, more detectors or sensors can be connected to the microcontroller output port where it can be reprogram by user using their personal computer at home. Read this  Chapter 2 – Why Security is Needed As the result, the infrared motion detector is capable to detect motion while the microcontroller is capable to control the whole operation of the security system. CHAPTER 1 INTRODUCTION 1. 1 Background Motion detection is the action of sensing physical movement in a given area. Motion can be detected by measuring change in speed or vector of an object in the field of view. This can be achieved either by mechanical devices that physically interact with the field or by electronic devices that quantifies and measures changes in the given environment. There are two device of motion detection which is the mechanical device, and the other one is electronic device. In the mechanical device, a tripwire is a simple form of motion detection. If a moving objects steps into the tripwire’s field of view then a simple sound device like bells may alert the user. Mechanical motion detection devices can be simple to implement, but at the same time, it can be defeated easily by interrupting the devices’ mechanics like â€Å"cutting the wire†. While in electronic device, the electronic motion sensing such as motion detectors, can prevent such mechanical intervention. The principal methods by which motion can be electronically identified are optical detection and acoustical detection. Infrared light or laser technology may be used for optical detection. Motion detection devices, such as motion detectors, have sensors that detect movement and send a signal to a sound device that produces an alarm or switch on an image recording device. There are motions detector which employ cameras connected to a computer which stores and manages captured images to be viewed over a computer network. The applications for such detection are detection of unauthorized entry, detection of cessation of occupancy of an area to extinguish lighting, and detection of a moving object which triggers a camera to record subsequent events. The motion detector is thus a basic idea of electronic security systems. 1. 2 Project objective The objective of this project is to build a house security system using microcontroller Intel 8051 based on active infrared motion detection. 1. 3 Project scope This project concentrates on a development of an active infrared motion detector for house security system. To develop the whole project, it consists of three methods which are the concept of security system, the electrical structure, and the software programming. The concept of security system is on the detection of movement using active sensor to trigger alarm controlled by the microcontroller Intel 8051. The electrical structure consist of two systems which are the active infrared circuit that used to detect or sense motion and the microcontroller Intel 8051 circuit, used to control the whole operation of the security system. While the software programming is base on the microcontroller Intel 8051 instruction sets. It contains a program designed for a security system as an interaction to operate the electrical structure. 1. 4 Literature review Motion detectors are mainly used in security systems [4]. It is typically positioned near exterior doorways or windows of a building to monitor the area around it. Since motion detectors are so flexible and have so many uses, it offers feelings of protection and security for the average homeowner as well as commercial organizations [4]. An electronic motion detector is a device used to detect any physical movement in a given area and transforms motion into an electric signal. It consist of sensor that electrically connected to other devices such as security system, lighting, audio alarms, and other applications. Motion sensors are used in a wide variety of applications and as a result, many different types of motion sensors are available including the infrared sensor. Infrared sensors are widely known in the arts of intrusion detection and in fire or smoke detection. It is a device that often used in automatic light switches and security systems to turn on a light or to activate some other form of alarm or warning indicator when a person enters a monitored area [4]. The infrared sensors have basically two forms: active and passive. [4] An active infrared detector includes a radiation source and an infrared sensor which is sensitive to interruptions in the radiation sensed from the source. [4] These detectors are used as intrusion detectors by providing a path of radiation from the source to the sensor in a place where the path is likely to be interrupted by an intruder. You read "Home Security System" in category "Papers" The proposed active infrared method of motion detection has the advantage of fast speed response of a relatively large sensor. This advantage permits simpler optical system design, especially for wide fields of view. Besides, it is insensitivity to mechanical and acoustic noise, which presents substantial problems in the passive infrared (PIR) sensors. Low production cost is another advantage of these active infrared detectors. [4] Passive infrared motion detection detects heat energy radiated or emitted by an object, such as a body of a person, moving across a field of view of a heat sensor of the motion detection system. It is generally use an optical ollection system and multiple sensing elements of alternating polarity to create a detection pattern in the volume of interest. PIR detectors employ a group of radiation sensors coupled through amplifiers to a logic circuit. The radiation sensors detect changes in ambient infrared radiation. The detection system has an electrical circuit operatively coupled to the heat sensor for producing a detection signal in response to the heat sensor detecting a change o f temperature caused by the body heat of a person entering the detection pattern. PIR motion detectors are perhaps the most frequently used home security device. 4] Passive IR motion detectors are usually designed to provide an indication to an alarm panel in response to detecting IR that is indicative of motion of the object. The alarm panel is responsive to receipt of the breach indication to cause an alarm condition to occur. The other motion detector used in security system is an ultrasonic motion detector. It is commonly used for automatic door openers and security alarms [4]. It is inexpensive and can operate with narrow beam-widths. The ultrasonic transducers are the sensor that used in ultrasonic motion detector. It can be used to detect motion in an area where there are not supposed to be any moving objects. This type of motion detector is most commonly used in burglar alarm systems since they are very effective in this application [4]. In an ultrasonic motion detector, there are two transducers; one emits an ultrasonic wave and the other picks up reflections from the different objects in the area. The reflected waves arrive at the receiver in constant phase if none of the objects in the area are moving. If something moves, the received signal is shifted in phase. A phase comparator detects the shifted phase and sends a triggering pulse to the alarm. Ultrasonic motion detectors have certain advantages and disadvantages when compared with other types of motion detectors. The main advantage is that they are very sensitive and extremely fast acting. However, the largest problem with this type of motion detector is that it sometimes responds to normal environmental vibration that can be caused by a passing car or a plane overhead. Besides, the installation options on this type of motion detector are limited because ultrasonic beams are easily blocked by thin materials, including paper. False triggering is easily caused by reflections from blowing curtains, pets, and flying insects. While the passive infrared motion detectors offers problem where it can be falsely triggered by warm air movement or other disturbances that can alter the infrared radiation levels in an area. In order to prevent this problem, newer systems use two infrared sensors, which monitor different zones within a protected area. Logic within system triggers the alarm only when the two zones are activated in sequence, as would occur if a person walked through the protected area. For that reason, the purpose of using the active infrared as a sensor to detect motion for this project is surely on the advantage offers by the sensor. Its capability on detecting motion with a simple design at lowest cost is needed to build an effective house security system based on motion detection. 1. 5 Thesis outline Chapter 1 explains the background of motion detection, the project objective, the project scope, and the literature review of motion detector for security system. The concepts of motion detector are the major element as a guide for the development of the security system. Chapter 2 explains the systems involved for the development of the active infrared motion detector for house security system. The understanding of three systems which are the active infrared, motion detector, and house security system stated in this chapter needed for the development of the whole project. Chapter 3 focuses on the methodologies for the development of the electrical structure and the implementations of microcontroller programming. It gives a brief review on the concept of active infrared motion detector, the electrical structure for hardware development, and the programming for the operation of the security system. Chapter 4 discusses on the results obtained of the whole project. All discussions are concentrating on the result and performance of the security system. The discussion is valuable for future development of the security system. Chapter 5 discusses about the conclusion on development of the active infrared motion detector for house security system. The recommendations and modification required on this project is stated in this chapter for further development. CHAPTER 2 ACTIVE INFRARED MOTION DETECTOR FOR HOUSE SECURITY SYSTEM 2. 1 Introduction There are two systems on a development of the active infrared motion detector for house security system. The first system is an active infrared motion detector and the other one is the controller system. The first system concentrates on a development of an active infrared motion detector. It is consists of three element, which are the active infrared, the motion detector, and the house security system. The motion detector circuit will be control by the second system which is the microcontroller Intel 8051 based system. The combination between this two systems will built a project called an active infrared motion detector for house security system. 2. 2 Active infrared (IR) Infrared is an electromagnetic spectrum at a wavelength that is longer than visible light. It cannot be seen but it can be detected. Objects that generate heat also generate infrared radiation and those objects include animals and the human body whose radiation is strongest at a wavelength of 9. 4 µ meter. Infrared in this range will not pass through many types of material that pass visible light such as ordinary window glass and plastic. However it can pass through, with some attenuation, material that is opaque to visible light such as germanium and silicon. The active infrared sensors use invisible light to scan a defined area. In active infrared systems, there are two-piece elements which are consisting of an infrared transmitter and an infrared receiver. There is a 3/8 inch infrared beam between the transmitter which is placed on one side of the trail and the receiver which is placed on the other side of the trail. The transmitter and the receiver can be separated by as much as 150 feet. The transmitter emits a beam of light into the scan zone. The light, which is reflected by the background returns to the receiver, which constantly monitors the scan zone. When a person or object enters the zone the infrared light is interrupted. It then sends a signal to the controller system, which is wired into the door controls. One variation of this operating mode is called ‘background suppression’. This is when the receiver only detects a change in the reflected light when a person or object enters the scan zone thus causing a reflectance variation of the light, sending a signal to the microcontroller thus trigger the alarm of the security system. 2. 3 Motion detector A motion detector is a device that contains a motion sensor and is either integrated with or connected to other devices that alert the user of the pre-sense of motion. An electronic motion detector contains a motion sensor that transforms the detection of motion into an electric signal. The electric signal can be connected to a burglar alarm system which is used to alert the home owner or security service after it detects motion. An example of sensor that used in security system is an active sensor. Active sensors in motion detectors system are commonly used inside homes for a security system. An active motion detector emits optics or sound waves and measures feedback to detect motion. The simplest type of active motion detector is commonly used in commercial doorways to trigger a doorbell. A device is fixed to one side of the doorway, an optical sensor to the other. A beam of light will passes from the device through the sensor. When someone enters the establishment, the beam is broken, triggering the doorbell thus warn user for the intrusion. For that reason, active motion detectors can be purchased for home improvement security system. It is inexpensive devices that can add for more security to a home and provide peace of mind for home owners. 2. 4 House security system House security system is one of security that truly related to burglar or safety alarm system. Burglar and safety alarms are found in electronic form nowadays. Sensors are connected to a control unit via either a low-voltage hardwire which in turn connects to a means for announcing the alarm to elicit response. In a new construction systems are predominately hardwired for economy while in retrofits wireless systems may be more economical and certainly quicker to install. Some systems are dedicated to one mission; handle fire, intrusion, and safety alarms simultaneously. In common security system, the lights are triggered by motion gives the impression to user that someone is at home and able to see the burglar. Infrared motion detectors placed in house security system in crucial areas of the house can detect any burglars and alert the home owner or police. The first security system invented, house alarms were triggered by the release of a pressure button fitted into a door or window frame. This basic alarm was fundamentally flawed as the entire intruder needed to do to silence the alarm was to close the door or window. While various systems on the market ranging from inexpensive house security alarms to highly sophisticated systems requiring professional installation. All modern alarms are based on the same foundation, the electric circuit which is completed either when the door is opened or closed depending on the security system designed. The alarm is triggered when the circuit is altered and will not be silenced until a code is punched into the control panel. The most expensive and complicated alarm systems might also involve a combination of motion sensors and pressure pads to ensure even the most cunning intruder doesn’t get his hands on treasures. 2. 5 Microcontroller Intel 8051 The microcontroller 8051 is an 8-bit machine. Its memory is organized in bytes and practically all its instruction deal with byte quantities. It uses an Accumulator as the primary register for instruction results. Other operands can be accessed using one of the four different addressing modes available: register implicit, direct, indirect or immediate. Operands reside in one of the five memory spaces of the 8051. The five memory spaces of the 8051 are the Program Memory, External Data Memory, Internal Data Memory, Special Function Registers and Bit Memory. The Program Memory space contains all the instructions, immediate data and constant tables and strings. It is principally addressed by the 16-bit Program Counter (PC), but it can also be accessed by a few instructions using the 16-bit Data Pointer (DPTR). The maximum size of the Program Memory space is 64K bytes. The External Data Memory space contains all the variables, buffers and data structures that can not fit on-chip. It is principally addressed by the 16-bit Data Pointer (DPTR), although the first two general purposes register R0 and R1 of the currently selected register bank can access a 256-byte bank of External Data Memory. The maximum size of the External Data Memory space is 64K bytes. The external data memory can only be accessed using the indirect addressing mode with the DPTR, R0 or R1. The Internal Data Memory space is functionally the most important data memory space. In it resides up to four banks of general purpose registers, the program stack, 128 bits of the 256-bit memory, and all the variables and data structures that are operated on directly by the program. The maximum size of the Internal Data Memory space is 256-bytes. The register, indirect and direct addressing modes can be used in different parts of the Internal Data Memory space. The Special Function Register space contains all the on-chip peripheral input and output registers as well as particular registers that need program access. The maximum number of Special Function Registers (SFRs) is 128, though the actual number on an 8051 family member depends on the number and type of peripheral functions integrated on. The SFRs can only be accessed using the direct addressing mode while the upper 128 bytes of the Internal Data Memory can only be accessed using the Indirect addressing mode. The Bit Memory space is used for storing bit variables and flags. There are specific instructions in the 8051 that operate only in the Bit Memory space. The maximum size of the Bit Memory space is 256-bits. Bits can only be accessed using the bit instructions and the direct addressing mode. 2. 6 Summary The understanding on the elements of the systems involved for this project which are the active infrared, the motion detector, and the house security system is needed before proceed for the design and development process. This is important to ensure the project done according to the main idea of each part discuss in this chapter. CHAPTER 3 METHODOLOGY 3. 1 Introduction There are several steps to be applied in designing an active infrared motion detector for house security system. The relevant information is gathered through literature review from previous chapter. Data on motion detection and security system projects has been collected where the theoretical design is studied based on the motion detector for security concept. The understanding on the electrical structure for the hardware development is needed for the design circuit process of the motion detector and the basic security circuit. The next is the hardware development according to the circuit designed. This process is just only being proceed if each part of the circuit being improved is valid, else, it will be repeated until it is valid as the theoretical. Once the hardware development circuits have the output as the expected, then, the comparison for both hardware and theoretical analysis will be done. Next is the step where software structure is developed for the security system to be interface with the hardware development. While the final step of this research is on applying the whole project to the real house entrance like doors and windows. 3. 2 The concept of motion detector for security system Figure 3. 1 Active infrared motion detectors Figure 3. 2 shows the concept of an active infrared motion detector for a security system. In the active system each sensor consists of two housings. The first housing contains an infrared-emitting diode and an infrared-sensitive phototransistor as the infrared detector. The other housing contains an infrared reflector to reflect the infrared signal. When positioned in front of an entrance to a protected area, the two housings establish an invisible beam. Figure 3. 2 The concept of infrared motion detector for security system A person who enters the area will interrupts the beam causing an alarm to be triggered. For this type of motion detector uses the basic concept of the active infrared motion detector. An interruption in the signal modulated pulsating beam transmit by an infrared diode while receive by an infrared detector will set ‘on’ or ‘off’ the alarm of the security system. 3. 3 Hardware development Figure 3. 3 Block diagram for the house security system The hardware development is divided into three stages as shown in block diagram above. The inputs stage of the security system is the motion detector circuit, keypad, and magnetic sensor. The second stage is the controller unit which is the microcontroller Intel 8051. The purpose of using microcontroller is to control the whole system operation by sending data to the output stage which is the LCD display, indicator, and buzzers. 3. 3. 1 Motion detector circuit In designing the infrared motion detector circuit, it is based on two basic principle of active infrared motion detector which is the infrared transmitter and infrared receiver as shown in Figure 3. 4. Figure 3. 4 Basic principle of infrared operation 3. 3. 2 Infrared transmitter For the infrared transmitter which is also known as emitter circuit, it is on a basic design of timer 555 astable operation. The output of timer is connected to the infrared transmitter is used to produce pulse using an astable timer circuit. In astable circuit operation, pulse will continually generated until the power supplied through the circuit is removed. The astable circuit produces a continuous train of pulses at any frequency required. This means that the 555 timer can operate repeatedly; it will switch ‘on’ and ‘off’ continually to generate data for the infrared transmission. . 3. 3 Infrared receiver The infrared receiver which is also known as infrared detector receives the data transmitted by the infrared transmitter circuit. It is a simple electronics device on detecting infrared signal. This infrared detector can be directly connected into the controller circuit to produce logic high ‘1’ or low ‘0’ from the output termi nal thus activate or deactivate the controller system operation. The range of infrared detector components according to datasheet stated that the infrared detector can fully operates on detecting the infrared signal of 38 to 45 kHz. . 3. 4 4 ? 4 hexadecimal keypad The purpose of using 4 ? 4 hexadecimal keypad in the project is as an input where secure code entries to activate of deactivate the security system operation. The keypad provides eight interface pins, where one pin for each row and column of the keypad matrix. This 4 ? 4 hexadecimal keypad is connected to the keypad encoder (MM74C922) to control the keypad bouncing in the hardware development. 3. 3. 5 Keypad encoder (MM74C922) The MM74C922 key encoders provide all the necessary logic to fully encode an array of 4 ? hexadecimal keypad. It is used to encode the data received from the keypad code entry thus convert into binary code. These binary code is in hexadecimal number is required in data bus of the microcontroller syst em. Figure 3. 5 Interaction between keypad, keypad encoder, and octal buffer The figure 3. 5 above shows the block diagram on the interaction between the 4 ? 4 hexadecimal keypad, keypad encoder (MM74C922), and the octal buffer (74LS244). The keypad is used as a switch to give logic configuration to the keypad encoder. While the encoder will encode the data configuration from the keypad into the binary code based on datasheet of the encoder. These binary codes will be stabilized using the octal buffer to be process in the microcontroller system. These data will be process by the microcontroller thus running the system operation based on software designed for the security system. 3. 3. 6 Octal buffer (74LS244) A buffer is simply a unity-gain amplifier, usually with very high input impedance and very low output impedance. It allows a connection of heavily loaded to another load which requires a lot of current like capacitive load. The octal buffer is used to isolate one device from another by eliminating loading effects. It provides a ‘buffer’ between the two devices. The 74LS244 are octal buffers and line drivers designed to be employed as the memory address drivers, clock drivers, and bus-oriented transmitters/ receivers which provide improvement on the controller board density. 3. 3. 7 Microcontroller circuit (Intel 8051 – expended mode) The controller systems that use to control the motion detector system and other electronic devices are the microcontroller Intel 8051 – expended mode. In expended mode configuration, external ROM and RAM are used to add the data memory to be more than internal memory provided by the Intel manufacturer. The purpose of using an expended mode for the project is to expend more data available on developing and designing an excellent operation of the security system. Figure 3. 6 Intel 8051 block diagram The microcontroller Intel 8051 is a widely used on controlling devices and instruments due to its flexibility, existence of multiple producers. It consists of a simple architecture introduced by Intel in the year of 80’s. It produced with 128 bytes of RAM, 4K bytes of on-chip ROM, 2 timers, one serial port, and 8-bits wide of ports. This type of microcontroller become very popular after Intel allowed another manufacturer to make and market any flavor of the 8051, and still remains compatible with 8051. There are various versions of 8051 with different speeds and amount of the on-chip ROM which is valuable on controlling a system designed. 3. 4 Software development The software structure is using the assembly language where a set of program based on security system is assembled using ASM51 assembler. The 8051 Cross Assembler (ASM51) takes an assembly language source file created with a text editor and translates it into a machine language object file. This translation process is done in two passes over the source file. During the first pass, the Cross Assembler builds a symbol table and labels that used in the source file. While the second pass of the Cross Assembler is actually translates the source file into the machine language object file. During the second pass, the listing file of the assembled is generated for the analysis purpose. A security program as shown in flow chart below were written in notepad based on 8051 instruction set before assembling process to get the binary code. This binary code is then used to be load into the location of the memory thus operates the hardware developed. The flowchart as shown in Figure 3. 7 is a basic designed for the security system operation. In this security system, the security code is set as ‘1985’ to activate or deactivate security system. When user closed the door, the system will activate where the magnetic switch and infrared is in active condition. To deactivate the system where opening door without alarm, user must enter the deactivation code. The chance to deactivate the system is once before keypad locked, where user can not enter the code anymore. If deactivation code was correct, green LED will ‘on’ while alarm will ‘off’ condition. System at this time is successfully deactivated and user can open the door without alarm. Figure 3. 7 Flow chart of software design for the security system If deactivation code enters was incorrect, system is still activate and for that, red LED and alarm will ‘on’ where the system is in a warning mode. The system will keep in this mode until the correct deactivation code entered. When the correct deactivation codes enter, the reconfirm code is needed where user need to reenter the correct deactivation code before the system successfully deactivate; the green LED will ‘on’ and the alarm will ‘off’ condition. The reconfirm code is designed in the system to make more security for the system developed. If intruder open the magnetic switch without entered the correct security code, thus the alarm will ‘on’. User must enter the correct deactivation code to turn ‘off’ the alarm system. The activation and deactivate code for this system are ‘1985’ and the ‘enter’ button codes are ‘A’ for every codes entered. 3. 5 Summary There are three elements discussed in this chapter which are the concept of motion detector for security system, the hardware development, and the software designed for the security system. Each part of these elements is related to each other. The understanding of the concepts and methods on developing the project is very important to achieve the main objective for the whole project. CHAPTER 4 RESULTS AND DISCUSSIONS 4. 1 Introduction This chapter will briefly discuss on the results and discussions of the hardware development. There are three major modules in developing the hardware structure which are the active infrared motion detector circuit, keypad module circuit, and the most important; the controller circuit 4. 2 Motion detector circuit The hardware development of the active infrared motion detector system is divided into two parts, which are the infrared emitter circuit and the infrared detector component. 4. 2. 1 The emitter The emitter which also known as infrared transmitter circuit was build as shown in Figure 4. . A probe or the oscilloscope is attached to the infrared LED while the adjustable resistor is varied to calibrate the emitter to transmit 38 kHz square wave. The Figure 4. 1 shows the final configuration of the emitter circuit: Figure 4. 1 The emitter circuit Figure 4. 2 shows the result obtained from the oscilloscope where the frequency generated by the emitter circuit is 38. 67 kHz square w ave. At this generated frequency, the voltage maximum produced is 1. 60V and the peak to peak voltage is 1. 16V. Figure 4. 2 The 38 kHz frequency generated by the emitter circuit How to cite Home Security System, Papers

Organizational Behavior for Business and Management -myassignmenthelp

Question: Discuss about theOrganizational Behavior for Business and Management. Answer: Motivating employees in workplace has become a major priority for work managers or leaders today if they want to retain competitive advantage in market today. Identifying techniques to motivate human resources has been associated with enhanced performance of employees. This promotes fulfilling organizational goals as well as challenging competing global economy. Leaders play the most important role in leading their employees to fulfill organizational goals and their process of enhancing the self-esteem of employees further facilitates the action of achieving action goals (Fiaz et al 2017). In the context of the importance of motivation for increasing employee performance, the essay critiques a research article based on the effect of motivation techniques used by managers to increase productivity of employees. It also gives a discussion regarding the key strength and weakness of the article with support from other research literature. The article by Guclu and Guney (2017) clearly mentions the research question, which is to analyse the perception of employees about the effect of using motivation tools by manager in increasing their performance in workplace. The main thesis statement related to this research question is the impact of motivation techniques used by managers to increase productivity of workers. The significance of this research was reported by the researcher by the discussion regarding the need to evoke hidden talents and power of employees. From the review of literatures, it was pointed out that use of motivation techniques by the manager influenced disclosing skills and potential of employees. The importance of the research question is also realized from the discussion regarding the importance of motivation in maximizing the efficiency on the manpower in organizations and different motivation techniques to promote efficiency. The quality of literature review in this work is also high because the rese archer started from a wider perspective and slowly narrowed down to the behavior needed by managers to motivate the employees. However, the main limitation of this research is that while framing the research questions, the researcher did not identified any gap in previous research, which made this study important and necessary. Despite this limitation, this research work will give insight about managers and employees relationship. According to Cherian and Jacob (2013), managers and employees relationship is also important for promoting role of managers in motivating employees. Successful performance is mediated through career motivation and the application of self-efficacy theory can also play a role in improving work related performance. Based on the thesis statement of Guclu and Guney (2017), it is critical that the research identifies the specific motivation techniques used by the managers and the impact of those on employee performance. To get answer to this question, survey questionnaire were prepared for employees working in textile industry. The first part of the questionnaire aimed to get demographic detail of respondents and the second section evaluated the opinion of employees about the motivation tools. The validity of the data collected was enhanced by the calculation of frequency variance and validity and safety analysis. This reflects the strength of the study because consideration of confounding variable is important to get clear results and eliminate any biasness in studies. To get appropriate data related to the research question, it is also necessary to chose appropriate sampling method. No such specification was given by Guclu and Guney (2017), the only consideration was that they did not take large sample size as it was not possible to survey large group of population. However, this consideration is seen in the research by Fiaz et al. (2017) who used stratified sampling technique to collect data and find out the impact of leadership style on motivation of employees. The advantage of using stratified sampling technique was that it ensured proportionate representation of all group of participants. Another advantage of using this sampling technique is that it help to select the best sample population that reperesents the entire population. It also reduces the likelihood of sample selection bias (Robinson, 2014). The success of any research result is understood from the relevance of the outcome with the research statement. The main strength of the research by Guclu and Guney (2017) was that it gave clear statistical data regarding the use of economic, psychosocial and organizational and management tools used among all participants. This gives clear indication regarding the motivation techniques that has been used by managers to increase the efficacy of employees. Secondly, the study results also gave detail regarding the impact of motivation techniques on education, monthly salary, assignment status and term of office. Considering all these variables is important because all these factors has an impact on motivation of employees. For instance, these variables can give indication about the source of motivation. The results outcome of assignment status and term of office is the most critical data as it gives an insight into the impact of different motivation tools on employee retention, intenti on to leave and completing work assignment effectively. All these are critical factors related to employee performance and workplace productivity (Park and Shaw, 2013). This is consistent with the study by Bastons et al. (2017) which explains that motivation of employee is dependent on extrinsic factors of salary, intrinsic factor of job satisfaction and retention of employees and prosocial factors related to the needs of key stakeholders of the organization. After reviewing the research article, I can say that I agree with the research in many points and there are very few contradictory points. For instance, Guclu and Guney (2017) work emphasizes that efficiency is critical to productivity and the viewpoint of manager and employees on the impact of using motivational tools can give important insight regarding actions that can be adapted in organizational to promote productivity. The research gave valid explanation regarding the factors that affect employees perception of motivation. The researcher was in favor of thinking that education status can affect employees perception of motivation tools and the survey results also proved that employee with high educational status perceive the motivation process in a more conscious manner. Hence, I agree that reviewing educational status of participant was important in relation to the purpose of studies. The research study by Malik, Butt, and Choi, (2015) also considered education and work experie nce of participant as such variable also affect the performance of employees. This mean education and work experience is reflective of self-efficacy of employees and presence of such attributes in employees also have an impact on responding to extrinsic and intrinsic rewards in workplace. Secondly, in terms of impact of tools on different income group, the study gave significant results. It showed in case of psychosocial motivation tool, its influence was high in low income group that high and middle income group. This suggests that low income groups are motivated by getting psychosocial support in workplace. It raised their morale (Guclu and Guney (2017). One point that any reviewer can add in this point is that the personality traits of managers also plays a key role in motivating employees. However, the main limitation of this research is that no arguments were raised in this study regarding the personality traits of managers that would have an impact on employees perception of motivation process. This is a major gap in the study and just like the variable of age, income status, retention rate and assignment status, the survey questionnaire needed to have personality traits of managers too. This would have given idea regarding different personality trait presents i n managers at the textile facility and the response of the employee would also have given the idea regarding the specific personality traits that they prefers in their leaders to motivate and guide them in workplace. This would also highlight the purposeful work behavior of managers (Barrick, Mount, and Li 2013). The importance of including managers personality traits in survey questionnaire is also understood from the research by Lounsbury et al. (2016) investigating about distinctive personality profile needed for managers. In this study, the personality traits were evaluated by means of Big Five personality traits. The purpose was to identify personality predictors of managerial performance and the managers score higher on the traits of agreeableness, conscientiousness, emotional stability, openness, optimism and customer service orientation. While analyzing the study results in terms of influence of employee motivation, it was found that extraverts had the capability to develop social network and motivate and satisfy employees intrinsically. Hence, interaction between personality traits and managers role in motivating employee were observed. On this ground, it can be said that Guclu and Guney (2017) missed this important variable in his research and including this element in the survey qu estionnaire would have enhance the validity of the study results. The essay critically analyzed the study of Guclu and Guney (2017) regarding impact of motivation tools on workplace productivity and employee performance. The research approach used by the researcher was useful in generating many important outcomes such as providing idea regarding the association between employee education and income status on perception of motivation process. However, considering the gap of not including managers personality trait in survey, it is recommended to conduct further research on how personality traits can motivate employees in workplace. Reference Barrick, M.R., Mount, M.K. and Li, N., 2013. The theory of purposeful work behavior: The role of personality, higher-order goals, and job characteristics.Academy of management review,38(1), pp.132-153. Bastons, M., Mas, M. Rey, C. 2017, "Pro-stakeholders motivation: Uncovering a new source of motivation for business companies",Journal of Management and Organization,vol. 23, no. 5, pp. 621-632. Cherian, J. and Jacob, J., 2013. Impact of self efficacy on motivation and performance of employees.International Journal of Business and Management,8(14), p.80. Fiaz, M., Su, Q., Ikram, A. Saqib, A. 2017, "Leadership Styles And Employees Motivation: Perspective From An Emerging Economy",The Journal of Developing Areas,vol. 51, no. 4, pp. 143-156. Guclu, H. and Guney, S., 2017, The Effect of the Motivation Techniques Used by Managers to Increase the Productivity of their Workers and an Application. Lounsbury, J.W., Sundstrom, E.D., Gibson, L.W., Loveland, J.M. Drost, A.W. 2016, "Core personality traits of managers",Journal of Managerial Psychology,vol. 31, no. 2, pp. 434-450. Malik, M.A.R., Butt, A.N. and Choi, J.N., 2015. Rewards and employee creative performance: Moderating effects of creative self?efficacy, reward importance, and locus of control.Journal of Organizational Behavior,36(1), pp.59-74. Park, T.Y. and Shaw, J.D., 2013. Turnover rates and organizational performance: a meta-analysis. Robinson, O.C., 2014. Sampling in interview-based qualitative research: A theoretical and practical guide.Qualitative Research in Psychology,11(1), pp.25-41.

The Most Important Day of My Life free essay sample

The most important day of my life Everyone has gone through many experiences that have transformed into unforgettable days or significant moments. I believe that my most important day was the first day I touched the guitar. After this moment, everything in my life changed. I had never played guitar before. However, when I was a child, I was able to remember simple melodies from TV programs. Then, I could repeat these melodies on my small keyboard. So my father decided to let me learn violin.Although I spent more than ten years learning violin, I only played by reading sheet music because my violin teacher only taught me classical music. I was not able to play and to understand real music after ten years of learning. After I graduated from high school, a friend of mine suggested that we should learn to play guitar because we both thought the instrument was cool. We will write a custom essay sample on The Most Important Day of My Life or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page I will never forget that day when we went to buy our guitars in the guitar store.I saw a guitar player playing the guitar, which I really enjoyed. He became my first guitar teacher after we had a pleasant conversation. It took me such a long time to choose a guitar among several fantastic models in the store. The guitar is the most important part of my life right now and I practice it everyday. I want to be a great player and musician. I feel so lucky that I am a member of the Berkeley family and I hope I can bring original American Jazz to China after I graduate.