Assignment from readings

8-17 Fairfax Recreation Center (Internal Controls at a Fitness Center) The Fairfax Recreation Center is a neighborhood fitness center equipped with an indoor swimming pool, exercise equipment, and a running track. The Center is open seven days a week, from 8:00 A. M. to 10:00 P. M. Stationed just inside the front doors is a turnstile. An employee oversees access through the turnstile. Before anyone can enter the facility, they must either present their membership card or pay a $6 daily fee. When the employee at the turnstile collects cash for daily fees, he or she also has the visitor complete a waiver form. The employee then deposits the cash in a locked box and files the forms. At the end of each day the Recreation Center accountant collects the cash box, opens it, removes the cash, and counts it. The accountant then gives a receipt for the cash amount to the employee on turnstile duty. The accountant takes the cash to the bank each evening. The next morning, the accountant makes an entry in the cash receipts journal for the amount indicated on the bank deposit slip. Susan Porcano, the Fairfax Recreation Center General Manager, has some concerns about the internal controls over cash. However, she is concerned that the cost of additional controls may outweigh the benefits. She decides to ask the organization’s outside auditor to review the internal control procedures and to make suggestions for improvement. Assume that you are the outside auditor. Indicate weaknesses in the existing internal control system over cash admission fees and recommend one improvement for each of the weaknesses you identified. Organize your answers as follows: 9-15. Identify one or more control procedures (either general or application controls, or both) that would guard against each of the following errors or problems. a. Leslie Thomas, a secretary at the university, indicated that she had worked 40 hours on her regular time card. The university paid her for 400 hours worked that week. Apply a separation of duties control. The data processor will input the hours worked and that can be verified by the accounting manager for accuracy. Another control that can be added to this is to establish a limit in the AIS for total hours worked so that no value above that number can be inputted. This will detract from more hours worked being inputted in the first place. b. The aging analysis indicated that the Grab and Run Electronics Company account was so far in arrears that the credit manager decided to cut off any further credit sales to the company until it cleared up its account. Yet, the following week, the manager noted that three new sales had been made to that company—all on credit. Utilization of administrative controls would work in this instance. When designing the IS, there should be the ability to note an account for lack of payment and temporarily suspend the account until necessary action is taken. c. The Small Company employed Mr. Fineus Eyeshade to perform all its accounts receivable data processing. Mr. Eyeshade’s 25 years with the company and his unassuming appearance helped him conceal the fact that he was embezzling cash collections from accounts receivable to cover his gambling losses at the race track. The duel observation control and separation of duties would work here. Have two people document the receivables as they come in and have Mr. , Eyeshades reconcile the accounts based off of that. d. The Blue Mountain Utility Company was having difficulty with its customer payments. The payment amounts were entered directly into a terminal, and the transaction file thus created was used to update the customer master file. Among the problems encountered with this system were the application of customer payments to the wrong accounts and the creation of multiple customer master file records for the same account. The AIS should incorporate an unfound record test and also a check digit control procedure. This will ensure that the account number being entered is correct and that no other file has been produced. e. The Landsford brothers had lived in Center County all their lives. Ben worked for the local mill in the accounts payable department, and Tom owned the local hardware store. The sheriff couldn’t believe that the brothers had created several dummy companies that sold fictitious merchandise to the mill. Ben had the mill pay for this merchandise in its usual fashion, and he wrote off the missing goods as ‘‘damaged inventory. ’’ Ben does not appear to be a manager, so there should be a separation of duties with in the accounts payable department. The documents should be prepared by Ben, but should also be verified by a manger. There should also be internal audits that would bring to light any redundancies on approving officials or names within the organization. 9-16. Identify one or more control procedures (either general or application controls, or both) that would guard against each of the following errors or problems. a. A bank deposit transaction was accidentally coded with a withdrawal code. Feedback mechanism in the form of a receipt will identify this incident. The use of an edit test would check for b. The key-entry operator keyed in the purchase order number as a nine-digit number instead of an eight-digit number. AIS should have a check for the number of digits in that field. If the field is only 8 digits then it should be formatted not allow for anything more or less. c. The date of a customer payment was keyed 2001 instead of 2010. A feedback mechanism such as a payment slip/receipt would be used to verify the information. Also, a reasonable test would be appropriate to ensure that the date is not past a certain value. d. A company employee was issued a check in the amount of ? $135. 65 because he had not worked a certain week, but most of his payroll deductions were automatic each week. An edit test of sign†¦. meaning ensuring that the value was a positive number†¦. rejecting a negative value in the payroll system. e. A patient filled out her medical insurance number as 123465 instead of 123456. Edit test of reasonableness†¦the insurance number field would have to fall within a valid range of values to be accepted. f. An applicant for the company stock option plan filled out her employee number as 84-7634-21. The first two digits are a department code. There is no department 84. Unfound record test would work for this. If the master file is not found for department 84 then the master file would reject the transaction. g. A high school student was able to log onto the telephone company’s computer as soon as he learned what telephone number to call. The use of biometrics wouldn’t allow the student just to know a phone number and be able to log onto computers h. The accounts receivable department sent 87 checks to the computer center for processing. No one realized that one check was dropped along the way and that the computer therefore processed only 86 checks. A batch control document with a list of all the checks that need to be processed is appropriate. On the document will also contain a total dollar amount of all the checks.

Physical Geography Essay Example | Topics and Well Written Essays - 500 words - 2

Physical Geography - Essay Example This implies that it reflects red and yellow light. Gold occurs in diverse geologic environments, and its classification into deposit categories is thus intricate. Geologists recognize two kinds of deposits or occurrence of gold, which entails the primary and secondary. These two kinds depend on the same physical and chemical process to generate economic concentrations of the gold ore. The primary type of occurrence often forms in a place that the gold precipitates, which happens during the chemical reaction involving hot fluids, mineralizing solutions and rocks of the Earth’s crust. Formation of the secondary deposits often occurs later when the mechanical and chemical processes of weathering, as well as erosion, take place. After the formation of these kinds of deposits, it is then easy to extract it using various techniques. Production of gold in Colorado is something that begun a long time ago. Colorado is one of the United States. History provides that Colorado started as a small town because of the gold trade and then later developed to what one can now see presently. There are a number of existing gold mines in Colorado that increasingly exploit this natural resource. Some of the districts within Colorado state where goldmines are exploited, include the Cripple Creek, as well as Victor goldmine. The economic contribution of gold to the state of Colorado can never be undermined. Gold has improved the economy of Colorado and had led to the construction of a number of infrastructural projects. Gold keeps on providing employment opportunities to the youths. Monotremes: They are primitive mammals that lay eggs. Marsupials: Their females have pouches, and their young are born immature and stay in these pouches. Placentals: Their young are born at a stage where they are somehow advanced, and before birth, their young are fed in the womb via the placenta. The Aepyornithidae and the Double Watted Cassowary are both birds that

Unit 7 paper biochem Essay Example | Topics and Well Written Essays - 750 words

Unit 7 paper biochem - Essay Example As the extent and the strength of the exercises increases, the aerobic system (mitochondrial or oxidative system) takes over and provides the energy needed. Therefore, the first few minutes of running involve anaerobic activity, but as the intensity of the exercise increases during running and weight lifting, aerobic activity takes over to oxidise the previously produced pyruvate into more ATP to sustain the body during the exercise. These energy systems are interdependent of each other and work concurrently in the body. Based on the meal plan above, rice is the key carbohydrate food that is rich in starch. Skim milk, in addition, contains carbohydrates in the form of lactose (milk sugar). Beans also contain the polysaccharide starch. Protein foods include chicken, beans, and skim milk (whey proteins). Olive oil, skim milk, and ranch dressing contain fats. Olive oil, ranch salad, and chicken contain unsaturated fats, whereas skim milk contains exceptionally small quantities of saturated fats since skim milk usually has a low quantity of fat compared to whole milk. The salad contains vitamins, minerals, and roughage (fiber), which do not undergo digestion in the alimentary canal. When food is ingested in the mouth, the grinding action of the teeth (mechanical digestion) breaks it down into small pieces as saliva lubricates it. Chemical digestion of carbohydrates begins in the mouth where salivary amylase (ptyalin) digests starch into maltose. In the stomach, waves of muscular contractions called peristalsis (mechanical digestion) further squeeze the food, aiding in mechanical digestion. The gastric cells in the stomach walls secrete acidic juices including hydrochloric acid that create a favourable environment for the enzyme pepsin, which digests proteins into peptides. The partially digested food passes to the duodenum where most of the enzymatic digestion takes place. The pancreas

Genital Herpes Essay -- essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  I have infected 45 million Americans and will infect 1 million more Americans each year. Who am I?   Ã‚  Ã‚  Ã‚  Ã‚  Herpes, from the ancient Greek meaning to creep or crawl, is the name of a family of viruses of which herpes simplex virus 1 and herpes simplex virus 2 (HSV-1 and HSV-2) are the most serious human pathogens. HSV-1 is normally associated with orofacial infections and encephalitis, whereas HSV-2 usually causes genital infections and can be transmitted from infected mothers to neonates. Both viruses establish latent infections in sensory neurons and, upon reactivation, cause lesions at or near point of entry into the body. While HSV-1 and HSV-2 are different viruses, under a microscope, HSV-1 and 2 are virtually identical, sharing approximately 50% of their DNA and are treated similarly. HSV-1 and HSV-2 contain a large double-stranded DNA molecule. HSV is gram negative, consists of 162 capsomers and replication takes place within the nuclei of eukaryotic cells. The HSV virion has four parts: an electrondense core containing viral DNA; an icosapentahedral capsid; a tegument-an amorphous layer of proteins that surround the capsid; and an envelope. HSV-1 and HSV-2 encode at least 84 different polypeptides. Each protein does many things, hence HSV genes can encode several hundred different functions. To initiate infection, HSV attaches to at least three different classes of cell-surface receptor and fuses its envelope with the plasma membrane. The capsid, minus its envelope, is transported to the nuclear pore, through which it releases viral DNA into the nucleus. HSV replicates by three rounds of transcription that yield: alpha (immediate early) proteins that mainly regulate viral replication; beta (early) proteins that synthesise and package DNA; and gamma (late) protei ns, most of which are virion proteins. Of the 84 known polypeptides, at least 47 are not needed for viral replication in cultured cells. These 47 genes are not completely dispensable. Some complement cellular genes that are not expressed in terminally differentiated cells; others alter cellular metabolism to ensure high virus yields. Mutant viruses lacking these genes cannot survive in nature.   Ã‚  Ã‚  Ã‚  Ã‚  The symptoms of genital herpes vary widely form person to person. Some people have severe symptoms (such as many painfu... ...Unlike the culture method, this test does not require growing the virus but rather seeks to identify herpes by the presence of antigens, fragments of the virus that are know to stimulate the immune response. Herpes cannot be cured. Once someone is infected with either virus, it cannot be cleared from the human body. Genital herpes is usually treated with antiviral drugs such as Acyclovir (Zovirax), Famciclovir (Famvir), and Valacyclovir (Valtrex) to help keep the virus in an inactive state and prevent most outbreaks but again does not cure a person from the virus. During an active herpes episode people should follow a few key steps to speed healing and avoid spreading the infection to other places on the body or to other people:  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Keep the infected area clean and dry to prevent other infections from developing  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Try to avoid touching the sores  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Wash you hands after contact with the sores  ·Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Avoid sexual contact from the time the first symptom is felt until the sores are completely healed, that is, the scab has fallen off and new skin has formed where the sore was.

Automatic Room Light Controller with Didirectional Visitor Counter

CHAPTER :- 1 Project Overview 1. Introduction Of Project 1. 1 Project Definition: Project title is â€Å"AUTOMATIC ROOM LIGHT CONTROLLER WITH BIDIRECTIONAL VISITOR COUNTER â€Å". The objective of this project is to make a controller based model to count number of persons visiting particular room and accordingly light up the room. Here we can use sensor and can know present number of persons. In today’s world, there is a continuous need for automatic appliances with the increase in standard of living, there is a sense of urgency for developing circuits that would ease the complexity of life.Also if at all one wants to know the number of people present in room so as not to have congestion. This circuit proves to be helpful. 1. 2 Project Overview This Project â€Å"Automatic Room Light Controller with Visitor Counter using Microcontroller is a reliable circuit that takes over the task of controlling the room lights as well us counting number of persons/ visitors in the room v ery accurately. When somebody enters into the room then the counter is incremented by one and the light in the room will be switched ON and when any one leaves the room then the counter is decremented by one.The light will be only switched OFF until all the persons in the room go out. The total number of persons inside the room is also displayed on the seven segment displays. The microcontroller does the above job. It receives the signals from the sensors, and this signal is operated under the control of software which is stored in ROM. Microcontroller AT89S52 continuously monitor the Infrared Receivers, When any object pass through the IR Receiver's then the IR Rays falling on the receiver are obstructed , this obstruction is sensed by the Microcontroller CHAPTER :- 2 BLOCK DIAGRAM AND ITS DESCRIPTION 2. 1Basic Block DiagramEnter Exit Relay Driver A T 8 9 S 5 2 Signal Conditioning Exit Sensor Enter Sensor Light Signal Conditioning Power Supply Fig. 2. 1 Basic Block Diagram 2. 2 Blo ck Diagram Description The basic block diagram of the bidirectional visitor counter with automatic light controller is shown in the above figure. Mainly this block diagram consist of the following essential blocks. 1. Power Supply 2. Entry and Exit sensor circuit 3. AT 89S52 micro-controller 4. Relay driver circuit 1. Power Supply:- Here we used +12V and +5V dc power supply. The main function of this block is to provide the required amount of voltage to essential circuits. 12 voltage is given. +12V is given to relay driver. To get the +5V dc power supply we have used here IC 7805, which provides the +5V dc regulated power supply. 2. Enter and Exit Circuits:- This is one of the main part of our project. The main intention of this block is to sense the person. For sensing the person and light we are using the light dependent register (LDR). By using this sensor and its related circuit diagram we can count the persons. 3. 89S52 Microcontroller:- It is a low-power, high performance CMOS 8-bit microcontroller with 8KB of Flash Programmable and Erasable Read Only Memory (PEROM).The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the MCS-51TM instruction set and pin out. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic hip, the Atmel AT89S52 is a powerful Microcontroller, which provides a highly flexible and cost effective solution so many embedded control applications. 4. Relay Driver Circuit:- This block has the potential to drive the various controlled devices.In this block mainly we are using the transistor and the relays. One relay driver circuit we are using to control the light. Output signal from AT89S52 is given to the base of the transistor, which we are further energizing the particular relay. Because of this appropriate device is selected and it do its allott ed function. CHAPTER :- 3 SCHEMATIC DIAGRAM Transmission Circuit:- Fig. 3. 1 Transmitter circuit Receiver Circuit:- Fig. 3. 2 Receiver circuit * CIRCUIT DESCRIPTION: There are two main parts of the circuits. 1. Transmission Circuits (Infrared LEDs) 2. Receiver Circuit (Sensors) . Transmission Circuit: Fig. 3. 3 Transmitter circuit This circuit diagram shows how a 555 timer IC is configured to function as a basic monostable multivibrator. A monostable multivibrator is a timing circuit that changes state once triggered, but returns to its original state after a certain time delay. It got its name from the fact that only one of its output states is stable. It is also known as a ‘one-shot'. In this circuit, a negative pulse applied at pin 2 triggers an internal flip-flop that turns off pin 7's discharge transistor, allowing C1 to charge up through R1.At the same time, the flip-flop brings the output (pin 3) level to ‘high'. When capacitor C1 as charged up to about 2/3 Vcc, t he flip-flop is triggered once again, this time making the pin 3 output ‘low' and turning on pin 7's discharge transistor, which discharges C1 to ground. This circuit, in effect, produces a pulse at pin 3 whose width t is just the product of R1 and C1, i. e. , t=R1C1. IR Transmission circuit is used to generate the modulated 36 kHz IR signal. The IC555 in the transmitter side is to generate 36 kHz square wave. Adjust the preset in the transmitter to get a 38 kHz signal at the o/p. round 1. 4K we get a 38 kHz signal. Then you point it over the sensor and its o/p will go low when it senses the IR signal of 38 kHz. 2. Receiver Circuit: Fig. 3. 4 Receiver circuit The IR transmitter will emit modulated 38 kHz IR signal and at the receiver we use TSOP1738 (Infrared Sensor). The output goes high when the there is an interruption and it return back to low after the time period determined by the capacitor and resistor in the circuit. I. e. around 1 second. CL100 is to trigger the IC555 which is configured as monostable multivibrator. Input is given to the Port 1 of the microcontroller.Port 0 is used for the 7-Segment display purpose. Port 2 is used for the Relay Turn On and Turn off Purpose. LTS 542 (Common Anode) is used for 7-Segment display. And that time Relay will get Voltage and triggered so light will get voltage and it will turn on. And when counter will be 00 that time Relay will be turned off. Reset button will reset the microcontroller. CHAPTER :- 4 HARDWARE DESIGN ; DESCRIPTIONS Hardware Design:- Infrared Sensor TSOP1738 Microcontroller AT89S52 Relay 7-Segment Display Timer IC 555 Fig. 4. 1 Snap of the entire circuit 4. 1 Procedure Followed While Designing:In the beginning I designed the circuit in DIPTRACE software. Dip trace is a circuit designing software. After completion of the designing circuit I prepared the layout. Then I programmed the microcontroller using KEIL software using hex file. Then soldering process was done. After completion of the soldering process I tested the circuit. Still the desired output was not obtained and so troubleshooting was done. In the process of troubleshooting I found the circuit aptly soldered and connected and hence came to conclusion that there was error in programming section which was later rectified and the desired results were obtained. . 2 List of Components: Following is the list of components that are necessary to build the assembly of the Digital Speedometer Cum Odometer: * Microcontroller – AT89S52 * IC – 7805 * Sensor – TSOP 1738 (Infrared Sensor) * Transformer – 12-0-12, 500 mA * Preset – 4. 7K * Disc capacitor – 104,33pF * Reset button switch * Rectifier diode – IN4148 * Transistor – BC 547, CL 100 * 7-Segment Display 4. 3 Description of Components 4. 3. 1 Microcontroller AT89S52: The AT89S52 is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory.The device is manu factured using Atmel’s high-density nonvolatile memory technology and is compatible with the Industry-standard 80C51 instruction set and pin out. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory pro- grammar. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89S52 is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning.The Power-down mode saves the RAM con- tents but freezes the oscillator, disabling all other chip functions until the next interrupt or hardware reset. FEATURES:- * 8 KB Reprogrammable flash. * 32 Programmable I/O lines. * 16 bit Timer/Counter—3. * 8 Interrupt sources. * Power range: 4V – 5. 5V * Endurance : 1000 Writes / Erase cycles * Fully static operation: 0 Hz to 33 MHz * Three level program memory lock * Power off flag * Full duplex UART serial channel * Low power idle and power down modes * Interrupt recovery from power down modes * 256 KB internal RAM * Dual data pointer 4. 3. 2TSOP1738 (INFRARED SENSOR)Fig. 4. 2 Infrared Sensor Description: The TSOP17.. – Series are miniaturized receivers for infrared remote control systems. PIN diode and preamplifier are assembled on lead frame, the epoxy package is designed as IR filter. The demodulated output signal can directly be decode d by a microprocessor. TSOP17.. is the standard IR remote control receiver series, supporting all major transmission codes. Features: * Photo detector and preamplifier in one package * Internal filter for PCM frequency * Improved shielding against electrical field disturbance * TTL and CMOS compatibility * Output active low Low power consumption * High immunity against ambient light * Continuous data transmission possible (up to 2400 bps) * Suitable burst length . 10 cycles/burst Block Diagram: Fig. 4. 3 Block Diagram of TSOP 1738 Application Circuit: Fig. 4. 4 Application circuit 4. 3. 3 555 ( TIMER IC): Fig. 4. 5 Timer IC(555) Description: The LM555 is a highly stable device for generating accurate time delays or oscillation. Additional terminals are provided for triggering or resetting if desired. In the time delay mode of operation, the time is precisely controlled by one external resistor and capacitor.For astable operation as an oscillator, the free running frequency and duty cycle are accurately controlled with two external resistors and one capacitor. The circuit may be triggered and reset on falling waveforms, and the output circuit can source or sink up to 200mA or drive TTL circuits. Features: * Direct replacement for SE555/NE555 * Timing from microseconds through hours * Operates in both astable and monostable modes * Adjustable duty cycle * Output can source or sink 200 mA * Output and supply TTL compatible * Temperature stability better than 0. 05% per  °C * Normally on and normally off output * Available in 8-pin MSOP package Applications: * Precision timing * Pulse generation * Sequential timing * Time delay generation * Pulse width modulation * Pulse position modulation * Linear ramp generator 5. 3. 4 LTS 542 (7-Segment Display) Description: The LTS 542 is a 0. 52 inch digit height single digit seven-segment display. This device utilizes Hi-eff. Red LED chips, which are made from GaAsP on GaP substrate, and has a red face and red segment. Fi g. 4. 6 7 Segment Features: * Common Anode * 0. 52 Inch Digit Height * Continuous Uniform Segments Low power Requirement * Excellent Characters Appearance * High Brightness ; High Contrast * Wide Viewing Angle 5. 3. 5 LM7805 (Voltage Regulator) Fig. 4. 7 Voltage Regulator Description: The KA78XX/KA78XXA series of three-terminal positive regulator are available in the TO-220/D-PAK package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, thermal shut down and safe operating area protection, making it essentially indestructible. If adequate heat sinking is provided, they can deliver over 1A output current.Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. Features: * Output Current up to 1A * Output Voltages of 5, 6, 8, 9, 10, 12, 15, 18, 24V * Thermal Overload Protection * Short Circuit Protection * Output Transistor Safe Operating Area Protection 5. 3. 6 RELAY CIRCUIT: Fig. 4. 8 Relay A single pole dabble throw (SPDT) relay is connected to port RB1 of the microcontroller through a driver transistor. The relay requires 12 volts at a current of around 100ma, which cannot provide by the microcontroller.So the driver transistor is added. The relay is used to operate the external solenoid forming part of a locking device or for operating any other electrical devices. Normally the relay remains off. As soon as pin of the microcontroller goes high, the relay operates. When the relay operates and releases. Diode D2 is the standard diode on a mechanical relay to prevent back EMF from damaging Q3 when the relay releases. LED L2 indicates relay on. CHAPTER :- 5 SOFTWARE DESIGN FLOW CHART: Start Infrared Signal Transmission Interrupted from Sensor1 Interrupted from Sensor 2 Turn On Relay Counter Incremented Counter DecrementedCounter set to 0 Relay Turn Off Turn On Light Turn Off Light F ig. 4. 7 Flow Chart * If the sensor 1 is interrupted first then the microcontroller will look for the sensor 2. And if it is interrupted then the microcontroller will increment the count and switch on the relay, if it is first time interrupted. * If the sensor 2 is interrupted first then the microcontroller will look for the sensor 1. And if it is interrupted then the microcontroller will decrement the count. * When the last person leaves the room then counter goes to 0 and that time the relay will turn off. And light will be turn off. CHAPTER :- 6 TESTING AND RESULTSTesting And Results We started our project by making power supply. That is easy for me but when we turn toward the main circuit, there are many problems and issues related to it, which we faced, like component selection, which components is better than other and its feature and cost wise a We started our project by making power supply. That is easy for me but when I turn toward the main circuit, there are many problems and issues related to it, which are I faced, like component selection, which components is better than other and its feature and cost wise also, then refer the data books and other materials related to its.I had issues with better or correct result, which I desired. And also the software problem. I also had some soldering issues which were resolved using continuity checks performed on the hardware. We had issues with better or correct result, which we desired. And also the software problem. We also had some soldering issues which were resolved using continuity checks performed on the hardware. We started testing the circuit from the power supply. There we got over first trouble. After getting 9V from the transformer it was not converted to 5V and the circuit received 9V.As the solder was shorted IC 7805 got burnt. So we replaced the IC7805. also the circuit part around the IC7805 were completely damaged.. with the help of the solder we made the necessary paths. CHAPTER :- 7 FUTURE E XPANSION FUTURE EXPANSION * By using this circuit and proper power supply we can implement various applications Such as fans, tube lights, etc. * By modifying this circuit and using two relays we can achieve a task of opening and closing the door. CHAPTER :- 8 APPLICATION, ADVANTAGES ; DISADVANTAGES APPLICATION, ADVANTAGES ; DISADVANTAGES Application * For counting purposes * For automatic room light control * Advantages * Low cost * Easy to use * Implement in single door * Disadvantages * It is used only when one single person cuts the rays of the sensor hence it cannot be used when two person cross simultaneously. CHAPTER :- 8 BIBILOGRAPHY Bibliography * Reference Books * Programming in ANSI C: E BALAGURUSAMY * The 8051microcontroller and embedded systems: MUHAMMAD ALI MAZIDI JANICE GILLISPIE MAZIDI * The 8051 microcontroller: KENNETH J. AYALA * Website * www. datasheets4u. com * www. 8051. com

Essay on 7 Life Stages in Tantra - 630 Words

7 life stages of Tantra Not like Tantra, Hindu mythology or social system has divided the human life in 4 life stages considering the whole life of 100 years they have divided it in 4 life spans or stages. These are First Brahmcharaya meaning celibacy. Up to 25 years of age one should observe celibacy should not indulge in sex life. He/she should study and learn the things and collect knowledge. Second stage is Gristh meaning family life. One should marry produce his progeny raise a family and establish his kids and up to 50 years of age one should live this life. Then after 50 years is the third stage called Van Parasth meaning taking less interest in worldly affairs, he should start retiring from family life and do some social work and†¦show more content†¦In this stage he is frustrated some times because he sees no future. If a person has done well in his past stages and if he is successful then he becomes egoistic. This is time when one finds oneself on cross roads. Next life stage is Seniorhood This stage is from 57 years to 70 years. In this stage a person come to face reality and submit to it. What person has done in the past, if he is satisfied over it he is at his best peace of mind and he can be irritated too if the things did not happened to his planning and his desires were not fulfilled. Elderhood Next stage of life is Elderhood. This is from the year 71 to 84 years of age. His body becomes weak feels less energetic. In this stage a person complains about the present times, always declaring his times were good and spends most of his time in prayers and God realization. If he has not secured his future by little savings in his earlier stages then his life becomes miserable. Waiting Last stage of human life is Waiting. All the senses come to stop mostly. Person is unable to see properly, hear properly and much physical energy has been lost. He thinks he has lived much good to its expectations and pray God to call him back in His fold. Tantra says it is interesting that from 2 stages of life when the sex is active in a human life, it does not die till the end. Sex is the life energy. In every stage of life a human being does not lose his interest in sex. The day a person losesShow MoreRelated Tibetan Medicine Essay4800 Words   |  20 PagesTibetan medicine and the spiritual practice of Buddhism became widespread. According to tradition, Tibetan medicine can be traced back to the Buddha himself. It is said that the Buddha revealed the Four Tantras (The Root Tantra, The Explanatory Tantra, The Oral Instruction Tantra, and The Final Tantra), which constitute the essential principles of Tibetan Medicine. Tibetan Medicine has the same origins as Ayurvedic Medicine, and as a result, these two approaches have a great deal in common. BothRead MoreHinduism Jainism and Buddhism3092 Words   |  13 Pagesbelieved by many to be a polytheistic religion, the basis of Hinduism is the belief in the unity of everything. This totality is called Brahman. The purpose of life is to realize that we are part of God and by doing so we can leave this plane of existence and rejoin with God. This enlightenment can only be achieved by going through cycles of birth, life and death known as samsara. Ones progress towards enlightenment is measured by his karma. This is the accumulation of all ones good and bad deeds and thisRead MoreEssay about Medicinal Value of Yoga2978 Words   |  12 Pagesstudy that Yoga has definite medicinal value in the maintenance of health and treatment of disease Overall benefits of Yoga The practice of Yoga encompasses many different forms--e.g. Karma, Bhakti, Jnana, Raja, Hatha, Kundalini and Tantra). As Sri Krishna Prem so eloquently stated, Yoga is not a synthesis of all the separate branches of the tradition; it is the prior and undivided whole of which the branches represent partial formations. Yoga exercises (physical, mental or spiritual)Read MoreDrug Abuse8640 Words   |  35 Pagesabused by people in order to include a false sense of peace, to provide a short but powerful release from the worries and troubles of their daily lives to provide a means of escape from the harsh realities of life. This report is intended to be a reminder to such folk who have let their life be washed away by drugs. In the following report, we discuss the various aspects of drug abuse. Ranging from its impact on the younger generation to the way if affects the fields of competitive sportsRead MoreConsumer Behavior Towards Online Shopping18477 Words   |  74 Pages 55 3. Keval Amreliya 05 4. Dhanraj Solanki 145 5. Akash Gupta 43 6. Simpy Harwani 45 7. Binny Machchhar 71 8. Dhairyah Manek 78 9. Sandeep Ojha 86 10. Bhoomi Kotadia 66 TABLE OF CONTENT No. | Subject | Pg. No |

Global Effect of Gangs in Central America - Free Essay Example

Sample details Pages: 5 Words: 1515 Downloads: 3 Date added: 2019/04/12 Category Society Essay Level High school Tags: Gang Violence Essay Did you like this example? My name is Mrs. Katherine Hernandez and I am currently serving in the United States Navy. I am very concerned with our approach, as a country, to the war on gangs in the United States, and Central America. Don’t waste time! Our writers will create an original "Global Effect of Gangs in Central America" essay for you Create order Although I know our President is looking for ways to eliminate this problem by mass deportations, I highly believe that it will increase our problems. My reason being is that we are not eliminating the problem, just handing it off to another country to deal with. We need to decrease the amount of undocumented individuals entering the United States. Once this is achieved we will start seeing a growth in the economy, and a potential reduction in the crime rate with both Central America and the United States. When talking about the origin of gangs you need to see it from a cultural aspect, along with social, and economic. Gangs started coming about in the early 1800s, people started to look for easy ways to secure money with no limitations. They used racketeering, prostitution, and robbery. When you have a lack of education, and poverty you can see the level of violence rising up. You will see gangs exhibit dominance and power to prove their superiority. According to authors Ms Carlson and Ms. Gallagher: A study by the US Conference of Catholic Bishops found that over 50 percent of children from Honduras, Guatemala, and El Salvador reported that violent crime in their country of origin had influenced their decision to leave home (USCCB 2012, 7-8). About 50 percent of Honduran refugees had witnessed gun or gang-related violence, including the murder of family or friends (ibid., 8-9). Rising levels of gang membership also support the claim that widespread violence and gang activity are an underlying cause of UAC migration to the United States (Seelke 2014). Additionally, children who reach their teenage years start receiving threats and pressure to join gangs, prompting them to undertake a perilous journey at a young age with the hope of attaining long-term security. This is a perfect example of how our approach is backfiring. The United States began deporting gang members in the late 1900s and early 2000s back to Hispanic countries. In 2015, the United States deported over 176,968 people to Mexico, 40,695 people were deported to Honduras, 54,423 to Guatemala, and 27,180 were sent to El Salvador. Decreasing the violence in the United States had a major increase of crime in Central America. Although these numbers of deportation are high, without executing the root of the problem we will only see temporary solutions to the gang problem in the United States. We are allowing them to build another base in another country, which give them the opportunity to multiply rapidly. Once that empire is built somewhere else, they will continue to expand themselves and bring more gang members back into the United States. They will be more powerful, and harder to stop. We are not the only country trying to combat this war on gangs. Central America has been fighting to stop the expansion of gang with little progression. El Salvador and Honduras have had long termed effects, and are still facing issues to this day. Protesting in the streets, children involved in the gangs trying to hustle tourists. The civil war in El Salvador contributed to the expansion of gangs which has permanently damaged the country. More than a decade filled with homicide, corruption in the government system, poverty and lack of education, heavily promoted a new vision for young children to search a different lifestyle. More than one million people fled the country and immigrated to the United States (Valdez 1999). I will never forget my first experience traveling to Central America. My husband, and I, traveled to Honduras. We were young, and although my husband traveled to Honduras frequently due to his family being there, I couldnt believe the stories he would tell me. That is until, I saw first hand the amount of corruption, poverty, lack of education, and how the gangs instilled fear throughout the entire country. As we were getting off of the plane my husband told me to take all of my jewelry off and hide it in the middle of my suitcase. The reason he told me to put it in the middle is because the security at the airport would search your suitcase to steal from you. If you had valuables that were easy to find, then they would be gone. I couldnt wear my jewelry because if I walked out with it on, there was a good chance that we would have been robbed. I had to turn my cell phone off, and bury it in my purse to make sure that no one could see it. What an amazing way to start our two week adventure in this country I had never been in. We met his family right outside of the airport, and he rushed me into the car while he put our bags into the back. After driving five minutes we got pulled over. I had never felt the amount of fear as I did in that moment, because at that moment, every story that my husband had every told me suddenly made me realize how serious things can get. My palms started to sweat, as warmth spread throughout my whole body, and I hid my military identification card in my shoe. See in Honduras, if you run into the wrong cop, or gang member pretending to be a cop, your done. All I could do was pray for the best. The person driving the car didnt have a valid drivers license, so the cop said that we were going to have to go to the police station. The longer we were pulled over, the more the fear set in. We managed to leave with a warning after giving the cop twenty American dollars, one of our dollars in worth 23.66 of their Lempiras. We paid off the cop. A hours later we called a cab to take us into the city. I wasnt allowed to bring a purse, carry money, or bring my cellphone. I had to leave my i.d., credit cards, wallet, everything. I had to wear clothes that didnt draw attention to myself, no jewelry, watch, or anything nice. Since the gangs taxed all of the taxi drivers we had to pay a more expensive fare. Every cab driver gets taxed by the gangs to keep them safe. When we reached the pueblo, I saw young kids with no parents. They couldnt have been more than seven or eight years old huffing a chemical in a paper bag to help them feel full. They were homeless, with no money. and no food. These are the kids the gangs target, they have children do their bidding. We would have young kids come to us to ask for money. It is hard to say no to a kid that looks like they havent eaten in weeks. Not only do they target the pueblo, but Roatan as well. This is the tourist area of Honduras. When they see Americans getting off of the cruise ship they try to lure them to more secluded areas in order to rob them. Our government and Central American officials are continuing to fight on how to determine the best decision possible to dismantling the problem. With these officials fighting it is hard to determine which ones are fighting for the greater good, or their own interest. According to Wolf: According to Wolfe, Between 2002 and 2003 the conservative governments of the affected nations launched Mano Dura [Iron Fist] plans, ostensibly to curb gang activity and murders, which at the time were attributed chiefly to these groups. The timing and content of these measures, however suggest that they pursued electoral objective rather than effective gang control. Government corruption is flooding the Central American nations. The son of the former President of Honduras, Porfirio Lobo, plead guilty to conspiring to import cocaine into the United States. Our progression to minimizing violence in Central America cannot be accomplished since the government is tied with drug and corruption activities. Drug cartels and Mara Salvatrucha closely work together in order to maintain the distribution and transportation of drugs into the United States. We are supposedly trying to stop the problem, however, come to find out we have officials aiding the issue. Gangs share characteristics of brotherhood, protection, power, dominance and identity. Economically, gangs greatly benefit financially by recruiting young adults who come from poor backgrounds. The main way gangs acquire money is by extortion. I find it to be a disturbing problem that the United States should feel obligated to solve. We cant deport immigrants to their country of origin expecting that to solve the issue. We are actually creating more problems, and at the end of the day create more of a mess. We need to accept responsibility, and pursue rehabilitation programs to help reduce gang members by returning them to their old habits. We should feel that it is our moral responsibility, as a whole, to make our country safe for our children, and the future generations.