Thursday, October 31, 2019

The importance of the victims in the criminal justice process Essay

The importance of the victims in the criminal justice process - Essay Example The intention of this study is victimology as a term originating from a study of victims of crime. It is important to affirm that the victim of a crime remains at the center of the criminal justice process. To give support to this argument, this paper discuses the four major perspectives of victimology. In positivist perspective, the subject of a victim's contribution to a crime is explored. This perspective gives the view that in any criminal action, there have to be significant socio-cultural contributors that lead to a person becoming a victim of a crime. The underlying fact here is that there cannot be a crime without a victim of the same. In offering retribution through the justice system, it is, therefore, essential to analyze the impact of a victim's participation for the criminal justice system to be fair in their judgment. The critical theory of victimology, on the other hand, examines the responses of the different stakeholders in a criminal justice system. In this theoreti cal approach, the victim still plays a pivotal role. From the perspective of activist or humanists, their support is focused on providing a healing or the pursuit for justice or any form of retribution for the victims of different types of crime. The intention of the judicial system, the main intention is to serve justice to the victims of a crime. It is, therefore, effective to conclude that the victim of a crime remains pivotal to the criminal justice process.

Tuesday, October 29, 2019

Music -Blues Assignment Example | Topics and Well Written Essays - 250 words

Music -Blues - Assignment Example The new living conditions experienced by the Negros made them to start blues music as a form of appropriating and deconstructing white musical elements. These musical conducts created the images of solitary and a need for modifying the Negro’s way of life and new structure. Most blues-singers were considered as outcasts even among their own race because many of the laws that had been made at the time, which divided the Africans amongst themselves. The AAB format uses the 12 bar structure and is a common structure in blues music. AAB denotes the structure of every individual verse in a song and is often used as a compound form in both melody and lyrics. An example of a song, which uses the format, is Pride and Joy 1983 uploaded on February 8, 2010 and was produced on December 6 1983 at the CHCH Studios in Canada-Hamilton. The recording artists for the song are Stevie Ray Vaughan and Albert King. The song is about love and does not comprise one of the topics that reflected the hostility and desire for success among the

Sunday, October 27, 2019

The Gear Reduction Starter Engineering Essay

The Gear Reduction Starter Engineering Essay A starter motor is a high-torque motor for tuning the gear on the engine flywheel. Starter motor is also known as starting motor or a starter. The function of starter is to reduce the starting current by inititlly high resistance. In RLC series circuit resistance, inductance and capacitance are connected in series. Starter is used to protect the motor from overload. If the starter is 3ph to avoid single phasing and it is used to reduce the strating current. In motor starter both Otto cycle and Diesel cycle internal-combustion engine require the pistons to be moving before the ignition phase of cycle. This means that the engine must be set in motion by an external force before it can power itself. A hard crank was used to start engines, but it was inconvenient, difficult, and dangerous to start an engine. Care had to be taken to retard the spark in order to prevent backfiring with advance spark setting. The engine could kick back, pulling the crank with it, because the overrun safety mechanism works in one direction only. In this case users were advised to cup their fingers under the crank and pull up, it felt neutral for operators to grasp the handle with the fingers on one side, the thumb on the order. Even a simple backfire can break thumb or it is also seen that it could end with a broken wrist. The electric starter ensured that anyone could easily start and run an internal combustion engine car, and this made it the design of choice for the car buyers. ELECTRIC STARTER The electric starter is a permanent-magnet or a series parallel wound direct current electric motor with a solenoid switch mounted on it. Current from the starting battery is applied to the solenoid through a key operated switch which pushes out the drive pinion on the starter drive shaft. The solenoid also closes high current contacts for the starter motor, which begins to turn. Once the engine starts, the key operated switch is opened, a spring in the solenoid assembly pulls the pinion gear away from the ring gear and the starter motor stops. The starterà ¢Ã¢â€š ¬Ã¢â€ž ¢s pinion is clutched to its drive shift through an overrunning sparg clutch which permits the engine to transmit drive only in one direction. This is why the drive is transmitted through the pinion to the flywheel ring gear , but if the pinion remains engaged, the pinion will spin independently of its driveshift. This prevents the engine driving the starter for such backdrive would cause the starter to spin so fast as to fly apart. That is why a standard starter motor is only designed for intermittent use which would preclude its use as a generator. This system of pinion arrangement was used in early 1960à ¢Ã¢â€š ¬Ã¢â€ž ¢s after that a new system was introduced and named as Bendix Drive. The Bendix system places the starter drive pinion on a driveshift. When the starter motor starts turning, the inertia of the drive pinion causes it to ride forward and thus engage with the ring gear. When the engine starts, backdrive from the ring drive causes the ring gear to exceed pinion to rotative speed of a starter, at which point the drive pinion is forced back down the helical shaft and thus out of mesh with the ring gear. The drive unit is spun at a releasing the latch and permitting the overdriven drive unit to be spun of engagement. In this matter unwanted starter disengagement is avoided before a successful engine start. GEAR-REDUCTION STARTERS In 1962, Chrysler introduced a starter incorporating a geartrian between the motor and the driveshaft. Rolls Royce had introduced a conceptually similar starter in 1964 but Chrysler was the first to bring volume-production unit in the market. The motor shaft was integrally cut gear teeth forming a drive gear which mesh with a larger adjacent driven gear to provide a gear reduction. This permits the use of higher speed, lower current and lighter motor assembly while increasing cranking torque. The Chrysler starter made a unique, readily identifiable sound when cranking the engine. This starter formed the design basis for the offset gear reduction starters now employed by the vehicles on the road. Light aircraft engines also made extensive use of this kind of starter because of its light weight that offered an advantage to the aircraft companies. Ford also issued a nonstandard starter, a direct drive à ¢Ã¢â€š ¬Ã‚ moveable pole shoe à ¢Ã¢â€š ¬Ã‚  design that provided cost reduction rather than electrical benefits. This type of solenoid eliminated the starter. There are some steps that we have to follow while operating the ford starter:- The operator closed the key-operated starting switch. A small electric current flowed through the starter relay cord , closing the contacts and sending a large current to the starter motor assembly. One of the pole shoes hinged in the front, swang into position. This moved a pinion gear to engage the flywheel ring gear. The starter motor cranked the engine until it started. The operator released the key-operated starting switch, cutting power to the starter motor assembly. A spring retracted the pole shoe and with it the pinion gear. This starter was used on ford vehicles from 1973 through 1990, when a gear reduction unit conceptually similar to Chrysler unit replaced it. PNEUMATIC STARTER Some gas turbine engines and Diesel engines ues a pneumatic self starter. The system consists of geared turbines , an air compressor and a pressure tank. Compressed air released from the tank is used to spin the turbine, and through a set of reduction gears, engages the ring gear on the flywheel, much like an electric engine. On larger diesel engines found in large shore installations and especially on ships, a pneumatic starting gear is used. Theair motor is generally powered by compressed air. The air motor is made up of center drum about the size of a soup can with more than four slots cut into it which allows the vanes to placed radically on the drum to form chambers sround the drum. The drum is offset inside a ring casing so that the inlet airfor starting is admitted at the area where the drum and the vanes form a small chamber compared to others. Some small diesel engines such as ones found on tugboat and lifeboat use hydraulic starters in which the air is replaced with a hydraulic motor. The engine should not be shut down while running unless the hydraulic accumulators for the starting motor are recharged. Else there is a manual hand pump to slowly pump up the accumulators. On large diesel engines and almost all diesel generators used the prime movers of the ships will use compressed air acting directly on the cylinder head. This is not ideal for the small diesel engines as it provides too much cooling on starting. The actual compressed air is provided form a large reservoir that feeds into a header located along the engine. As soon as the air starts the valve starts opening and the compressed air is admitted and the engine will being turning as it can be used on 2-cycle or 4-cycle engines and on reversing engines. On large 2-stroke engines less than one revolution of the crank shaft is needed for starting. This is why the heavy trucks use air breaks and the system gives the double duty by supplying compressed air to the break system. Pneumatic starters have the advantage of delivering high torque. ELECTRIC MOTOR The electric motor converts electric energy into mechanical energy. Electric motor operates through interacting magnetic fields and current carrying conductors to generate force. Electric motors are found in applications as diverse as industrial fans, blowers and pumps. They may be powered by electric current or by alternating current from a central electrical distribution grid. The smallest motor is found in electric wrist watches. Medium size motor of highly standardized dimensions and characteristics provide convenient mechanical power for industrial uses. The very largest electric motors are used for propulsion of large ships. The physical principle of production of mechanical force by the interaction of an electric current and a magnetic field was known as early as 1821. Electric motors of increasing efficiency were constructed throughout the 19th century, but commercial exploitation of electric motors on a large scale required efficient electric generators and electrical distribution networks. Device used with AC electric motor to temporarily reduce the load and the torque in the powertrain of the motor during start is known as electric motor. Mechanical stress is also reduced by the electric motor. INDUCTION MOTOR There are different types of asynchronous AC motors and one of them is induction motor. When power is supplied to the rotating device by the means of electromagnetic induction. There are several ways to supply power to the rotor. In a Dc motor this power is supplied to the armature directly from a DC source. Sometimes an induction motor is also called a rotating transformer. This is because the stator is essentially the primarily side of the transformer. TYPES OF STARTER MOTOR Direct on-line starter Star delta starter Automatic star delta starter Auto transformer starter Steps starter Motor soft starter Differences in some of starter motor are as follows 1. Difference between Direct on-line starter and Star delta starter A direct on-line(DOL) starter connects the motor terminal directly to the power supply. Hence, the motor is subjected to the full voltage of power supply. Consequently high starting current flows through the motor. This type of starting is suitable for small motors below 3.75kw. reduced voltage starters are employed with motors above 3.75kw. Although DOL motor starters are available for motors less than kV. Supply reliability and reserve power generation dictates the use of reduced voltage or not. 2. Differences between Star delta starter and Automatic star delta starter To reduce the starting current of an induction motor the voltage across the motor needs to be reduced. This can be done by autotransformer starter, star-delta starter or resistor starter. These days VVVF used extensively for speed control serves this purpose also. Whenever you start a big heavy electric motor, you need to start it slowly to prevent the rotor overheating and drowning an enormous current. Future prospective Methods are changed in building the starter motor. Many new technologies continue to be introduced in new cars and trucks. General improved methods are:- better engine peak efficiency potential losses are reduced at light load from throttling weight, drag and rolling resistance is also reduced Mid-term engine technology is introduced on the market. Most promising development is cam-less valve actuation which offers potential to reduce throttling loss to near zero. New technologies introduced in the market are quite expensive but are very beneficial for the ecological balance.

Friday, October 25, 2019

A Postmodern Cultural Perspective in Lolita and A Streetcar Named Desir

A Postmodern Cultural Perspective in Lolita and A Streetcar Named Desire Postmodernism has emerged as a reaction to modernism thoughts and "well-established modernist systems". (Wikipedia, 2005) Specific to Nabokov's Lolita and Williams' Streetcar Named Desire is the idea that both of the novels are written under the view of postmodernism as a cultural movement and that they are broadly defined as the condition of Western society especially after World War II (period in which the novel were written; 1947 for Streetcar and 1955 for Lolita). While modernists viewed people as autonomous (capable of independent rational thought), postmodernists see human identity and thinking as the product of culture. (Xenos Christian Fellowship, 2005). The postmodern main assumption here is that culture and society create individuals as well as all their thoughts and attitudes. Lolita and A Streetcar Named Desire both treat of Cultural Relativism, which is the view that each culture has it's own truths that are relevant to them, but not relevant to other cultures. (Wikipedia, 2005) Economic changes, immigration, capitalism expansion, development of mass and popular culture, which result of the post-war period will also play a great role in defining cultural perspectives in Nabokov and Williams' stories and characters but also in defining the American culture itself. The main characters serve as archetypes of different cultures and symbolizes the integration of Europe in the the Un... ...umbert's European ear also revises American idiom when he talk about his "west-door neighbor." (Lolita, p. 179) To conclude, both stories have a strong cultural orientation, which result from the post World War II environment, in which a crassly materialistic and insensitive industrial society followed. The postmodern assumption that human identity and thinking are the product of culture and that culture and society create individuals as well as all their thoughts and attitudes (Xenos Christian Fellowship, 2005), is clearly demonstrated by Lolita's consumerist ideals and Blanche's collapse in the new southern culture.

Thursday, October 24, 2019

Printed Circuit Board and Acme

Introduction Acme Electronics and Omega Electronics were spin off companies from the original Technological Products of Erie, Pennsylvania that was bought out by a Cleveland manufacturer. The two companies were in the business of manufacturing printed circuit boards. Acme Electronics retained its original management while Omega Electronics hired a new president but upgraded several people within the plant. Both companies being in the same line of business and geographically close to each other often competed for business. In 1976, both companies were asked by a major photocopy manufacturer to produce 100 prototype memory units that would be used in a new experimental copier. The company with the winning bid would be awarded the contract to assemble these memory units. They had two weeks to come up with the prototypes. This paper examines the different goals pursued by Acme and Omega, their impact and strategies used to achieve the goals. It also looks at effectiveness of both methods used as well as the best results from the company that got the winning bid. Analysis It is clear from the case that the two companies had different goals. Omega’s goals seemed to be excellent internal processes and employee satisfaction whereas Acme’s goals were profits that came from operations being run very efficiently. Top management in any organization usually sets the strategy and communicates it down to the line worker to ensure that the whole organization was working together to achieve common goals. This was no different at the two organizations above. Acme’s president credited his organization’s success and effectiveness to the high degree of efficiency they were able to achieve. This was because employees had clear cut responsibilities and narrowly defined jobs that led to high performance. Omega’s president on the other hand had great emphasis on employee relations. As soon as Acme got the blueprints, they divided the work among the different departments and each went off to work diligently but with no contact with other departments. This caused problems early on in the project as the different departments were acting like little organizational silos – not sharing information or challenges they were facing. The end result was that Acme delivered the prototypes late and had a 10% defect rate but was within budget. Omega got the blueprints and immediately created cross-functional teams that worked together on the project. Even though they encountered similar problems as Acme, they were able to quickly resolve them and deliver the prototypes on time and with zero defects. At first it seemed like Omega would automatically win the bid but it turned out that Acme delivered at a lower cost and the contract was split between both firms with clear instructions to reduce final costs and maintain zero defects. In the end, the final contract was awarded to Acme due to their extensive cost-cutting efforts that saw them realize a 20% reduction in unit cost. Their goals definitely helped them win the contract because as the president had stated; their structure was best suited for high volume manufacture of printed circuits and their subsequent assembly. This created great high performance resulting in great efficiency and profits. Although they had problems in the initial stages, their president’s constant interaction with the client helped them out. He obviously handled the external relationship better. Summary In conclusion, both companies were effective in their own way. This is because they are pursuing different goals. Acme managed to stay highly efficient and win the contract whereas Omega maintained the high level of employee satisfaction. This however could cost them a lot of business in the long run. They should strike a balance between employee satisfaction and delivering on the bottom line.?

Wednesday, October 23, 2019

Asian century

Asian countries rather than America or Europe that the world looks to for business, politics and culture. For people that live in Asian countries life is changing fast. People in areas that used to be poor are starting to earn good incomes. They're spending more money and the economies of some massive countries are booming. Its change on a scale that the world's never seen before and it could have a big effect on other countries, including Australia. . Many say we're at the start of the Asian Century. 4. Asian Century means that in the future we will stop looking to America and Europe or the latest music, movies or fashionable clothes and start looking at Asia. We will most certainly pay more attention to Asian politics and we'll do a lot more business with people in Asia. 5. Australian politicians would like all school kids to learn an Asian language in school. 6.The four Asian languages that the government is focusing on are :- Indonesian Chinese Japanese and Hindi 7. Some of the d ifficulties that schools may face in getting kids to learn an Asian language are that no-one's actually said how the government's going to pay for all his learning and there are questions about where schools are going to find enough language teachers and how they're going to encourage kids to keep learning. 8.Yes I think it is important for school kids to learn an Asian language at school because if we are coming into an Asian Century then it would give them an advantage to be able to keep up with the latest form Asia and help them in the future to be able to relate to Asian countries. 9. I would say I am connected to Asia but not in a huge way. I do eat Asian foods occasionally and I like to eat fried rice, boiled rice, and stay chicken. Many products re made in Asia, such as clothes, electrical appliances and some of the food we eat.Asian culture does not really influence my life, except at the moment I am enjoying the Korean song Kananga Style. An Asian celebration that is held i n Australia particularly across Sydney Chinatown is Chinese New Year. This is important due to its large multicultural – and especially Chinese – population. It is celebrated through traditional parades featuring Chinese lanterns, music, acrobatics demonstrations, and fireworks. Similarities and Differences Between Asia and Australia SIMILARITIES PREFERENCES Ingà ©nue ultra population.