Is Alcohol Influence On The Alcoholic And Their Families A Good Research Paper Topic?
Thursday, October 31, 2019
Assessing your Program of Study & Recommendations Essay
Assessing your Program of Study & Recommendations - Essay Example Prison populations are increasing not only because of an increase in media attention in regards to all crimes being violent, but also that in terms of a set of parameters for recidivism of violent crimes, the state and federal prisons are receiving less violent criminals and more parole violators and drug users. ââ¬Å"Reversing a 20-year trend toward ever-tougher criminal laws, a number of states this year have quietly rolled back some of their most stringent anticrime measures, including those imposing mandatory minimum sentences and forbidding early paroleâ⬠(Butterfield, 2001). Law enforcement workers can help these inmates get the services they need like rehabilitation. They can work as advocates for these incarcerated individuals, and be proactive in their advocacy. I am happy with the program generally. However, if I am to make a recommendation, it is that the courses focus more on ethics. The society in which the debate over police ethics, political and otherwise since politics is a reflection, sets the ethical code, in a sense, since it is at least theoretically there to determine a positive relationship between the individual and the society through models of good behavior that does not bring harm upon others, or socially positive behavior. The specific concept of noble case corruption refers to the tendency of police misconduct to have its origins in circumstances where the behavior in question may be justifiable, but only in the context of the means. Training in ethics, to many commentators, may be compared to some arguments about training in artââ¬âsome argue that one either has artistic talent or doesnââ¬â¢t, and if one doesnââ¬â¢t, no amount of art classes are going to make them a talented successful artist. However, I donâ⠬â¢t subscribe to this idea, and I think that ethics training should be a part of the curriculum.
Tuesday, October 29, 2019
History Essay Example | Topics and Well Written Essays - 750 words - 9
History - Essay Example When the continued governance of the Province of Canada under the terms of the 1840 Act of Union had become impracticable, a Great Coalition of parties was formed to reform the political system. The first Confederation was held at Charlottetown in 1864 followed by the second at Quebec City where the idea of a confederation was explained. Confederation of Canada was the process under which Canada was formed as a confederation on July 1, 1867, when Queen Victoria gave royal assent to the British North America Act on March 29, 1867 (Wikipedia). This Act united the Province of Canada with the colonies of New Brunswick and Nova Scotia. While the BNA Act gave autonomy to Canada, foreign policy remained with the British. This was supposed to improve relations and make the economy stronger. Conscription in WWI worsened the French-British relations. In times of difficulty and dispute law gives a direction. In 1917, The Military Service Act placed restrictions on who could be called for mandatory military service (Alberta, 2002). Farmers were exempted, as their service was required to produce food. This was known as the conscription. The French did not want to go to the war but Canada was drawn into it being a part of the British Empire. Most French Canadian voted against the conscription but the conscription was evoked nevertheless. Later, when due to rising casualties during the war, people kept away from enrolment, the exemptions were removed. This upset the French in Canada and further strained the French-English relations. Front de Liberation du Quebec (FLQ) was founded in 1963 with a view to gain independence for Quebec even if terrorism had to be resorted to (Historica). The FLQ abducted the British Diplomat James Richard Cross and then the Provincial Minister Pierre Laporte on October 5 and 10 respectively. Negotiations between the FLQ and the Quebec government did not make
Sunday, October 27, 2019
Titanium And Titanium Alloys Engineering Essay
Titanium And Titanium Alloys Engineering Essay Material selection in manufacturing process is an important stage because proper selection of material not only can prevent catastrophic events from happening, but it allows a product to be manufactured in an efficient and effective way at low cost while meeting product performance objective. In this assignment, we are going to research into two material topics and identify the usage of these materials and overview some of the properties as to why they are chosen for specific application over the others and manufacturing processes. Topic1: Titanium and Titanium Alloys 1.1 Applications of Titanium Alloys Titanium and its alloys are widely used in variety of areas. These areas include aerospace industry, marine operation, automobile, bio-medical applications, etc. Figure 1: Applications of titanium alloy 1.2 Automobile Connecting Rod One application of titanium alloy is applied in producing connecting rod for automobile in order to achieve high performance for high end racing vehicle. Connecting rods are one of the most important automotive components as it responsible for changing the reciprocating motion of piston into rotary motion so that the power generated by the chemical energy can be transmitted from piston to crankshaft and finally producing forces driving the vehicle. 1.3 Material Properties require for Connecting Rod Weight is always an important factor to consider in racing sport competition, therefore in racing sport arena, car builders always try to reduce the overall weight of the vehicle so that every single drop of power generated by the engine can be utilized in providing motion for the vehicle rather than carry its own weight. This result in many of the car components are replaced by materials which are light, robust without compromising other materials properties like tensile strength, compression strength, damping capability, creep, fatigue, etc. This includes the connecting rod for the engine. The weight of the connecting rod is important because it influences the performance of the engine is terms of forces generated and response of the engine. If the connecting rod is made lighter, it is usually better as less weight enable the throttle action and acceleration can be carry out more smoothly and effectively, thus enhance the engine efficiency. However, strength and other aspect of mat erials properties are equally important owing to the reciprocating load generated by the movement of piston inside the cylinder and crankshaft. For every revolution of engine rotation, the connecting rod is under huge amount of compression and tensile forces. Hence, it is necessary that the connecting rods strong enough to handle all the power produced by the engine and withstand all the forces that tend to pull the rod apart during exhaust and crumble the rod during compression which results in irrepairable engine failure. Since the engine is operating at high temperature and needed to sustain a sudden force caused by the explosion of chemical happen within the cylinder, as a result it is very important that connecting rod possess high fatigue strength, high fracture toughness at elevated temperature, high shock resistance, etc. Summarizing the needs for connecting rod, materials properties requires for a connecting rod include: High strength to density ratio Low density Low thermal expansion High fatigue strength in elevated temperature High fracture toughness in elevated temperature High shock resistance Low ductile-to-brittle transition at low temperature High melting point 1.4 Manufacturing Processes of Connecting Rod In general, connecting rods are produced by conventional forging method Figure 2: Conventional Forging Manufacturing Processes for Connecting Rod 1.5 Conventional Forging Method 1.5.1 Material Titanium is extracted from titanium ore by Kroll Extraction process follow by blending, melting, casting, forming and heat treatment to produce the required material for connecting rod. 1.5.2 Cutting to length of material The material is cut to the length near the final end product. 1.5.3 Billet Heating Alloy is heated to make it malleable prior to forming operation. 1.5.4 Hot Forging Red hot alloys which are in plastic condition are shaped into connecting rod by using compressive force. The alloys gone through the heating process is placed into die block and compressive force is imposed on the material by a hammer to strike it into the shape of connecting rod. 1.5.5 Trimming After the forging process, the ledge of excess material is removed by trimmer machine. 1.5.6 Piercing The material in the center of the holes is removed. 1.5.7 Shot Peening Shot peening is used to produce a residue compressive force to modify the mechanical properties of the surface to further improve the fatigue resistance. 1.5.8 Machining Machining process include deburring, milling, grinding, polishing, drilling, boring and inspection are carried out to produce the final connecting rod. 1.6 Advantages and Disadvantages of Titanium Alloys 1.6.1 Advantages of Titanium Alloys High strength-to-density ratio allows titanium alloy to replace steel and other materials in many areas. Figure 3 and 4 reveals the superior structural efficiency of titanium alloys compared to other alloys, especially as service temperatures increase. Figure 3: Structural Efficiency at Elevated Figure 4: Density Comparison for various Temperature Metal Specific Strength of Titanium Alloys is generally higher than any other alloy at elevated temperature. Figure 5: Specific Strength for several alloy at elevated temperature Titanium alloys have better fatigue strength than other lightweight alloys. For instance, aluminium, magnesium, etc. The corrosion resistance of titanium alloys also far better than steel and even aluminium alloys. This enables titanium alloy product suitable to be used in caustic environment. The high reactivity of titanium with oxygen enable immediate forming of oxide layer which protect the material from corrosion. The primary reasons why titanium alloys are attractive materials in many areas is because it exhibits excellent strength to density ratio, low density and corrosion resistance. Other aspect of material properties including the following: High fatigue strength in air and chloride environmentsà High fracture toughness in air and chloride environmentsà Low modulus of elasticityà Low thermal expansion coefficientà High melting pointà High intrinsic shock resistanceà High ballistic resistance-to-density ratioà Nontoxic, non-allergenic and fully biocompatibleà Excellent cryogenic properties 1.6.2 Disadvantages of Titanium Alloys Titanium extraction process is difficult and expensive. Titanium alloys have much higher flow stress than Al alloys or steels, thereby requiring much higher forging pressure capacity. Titanium and its alloys are more difficult to machine especially beta phase titanium alloys in comparison with steels and aluminum alloys for conventional methods such as milling, turning, drilling, etc. Titaniums has low thermal conductivity which reduces heat dissipation at the metal work-piece interface causing tools lifetime reduce and decreased welding or galling at tool and work-piece interface. 1.7 Structure and properties Titanium alloys are classified according to the amount of alpha and beta resides in the structure at room temperature. 1.7.1 Alpha titanium alloy The single phase alpha inhibits the heat treatment process. However it ensures weldability of the alloy. The strength and corrosion resistance at elevated temperature for alpha titanium alloys very much dependent upon the Aluminium and Oxygen element in the alloys. Figure 6: Ti-5% Al-2.5% Sn alloy in sheet form Figure 7: Commercially Pure Plate,0.03% iron Air cool at 732C/30Min 1.7.2 Alpha beta titanium alloy Beta stabilizing element results some beta phase to persist below the Beta Transus temperature which leading to two phase system. Two phase system enable Titanium alloy to be strengthened by heat treatment for example quenching, annealing, aging. Figure 8: Titanium Phase Diagram Figure 9 :Ti-6AL-4V Alpha-beta alloy plate air cool at 788/15 min 1.7.3 Beta titanium alloy Beta titanium alloys possess Body Center Cubic, BCC crystal structure is readily cold worked in the beta phase field. This allows solution heat treating follow by quenching giving high strength for the alloy. Figure 10: Ti-13V-11Cr-3AL alloy solution heat Figure 11: Flow stress for Titanium alloys treated at 788C/30min and water quenched Topic 2: Ceramic Coating 2.1 Ceramic Coating and Application Ceramic coating is one of the coating techniques developed for spraying ceramic material on the surface of object of interest to further improve the mechanical and physical properties for a readily available product made from certain materials so that the component life can further be extended. The typical application of ceramic coating is applied to create the thermal barrier for gas turbine engine blade, exhaust system, intake manifold and reduces the surface friction between two different materials to improve the wear resistant as well as making the interface between two materials more compatible. 2.2 Automobile Exhaust Manifold Exhaust manifold serves as a system to vent the exhaust gases away from an engine so that new round of cycle can begin. In automobile, we always wanted the engine to perform work with as high efficiency as possible, however most of the conventional exhaust manifold is usually made from cast iron alloy and other material. These materials usually having good thermal conductivity. This is not preferable because high heat dissipation rate can contribute to loss of energy which reduce the efficiency of the engine. With ceramic thermal coating applied on the exhaust system, engine performance improves in a number of ways. Firstly, they protect the exhaust system from rust and corrosion. Secondly, they reduce heat loss which can be translated into engine output. This can be viewed from several aspects. Ceramic coating insulates the heat of exhaust gases from the environment thereby keeping the exhaust gases hot which allow the gases flow more smoothly and these aids in cylinder scavenging. Next, by retaining the hot exhaust gases in the system, it reduces the engine bay temperature which results in intake air temperature reduced. Drop in intake air temperature can lead to less fuel usage and therefore increase the engine efficiency. For vehicle with turbocharger installed, the hot exhaust gases allow the turbocharger spool up more quickly making the engine more responsive. 2.3 Processes for Ceramic Coating 2.3.1. Surface Cleaning Before the manifold surface receive the ceramic coating, degreasing chemical would be used or material would be heated to high temperature to remove or burn off any foreign particle exist on the surface. The manifold will then be place in the oven at around 450 for around half an hour. 2.3.2 Coating Ceramic coatings are mainly manufactured by using atmospheric plasma spray method, APS. APS using the strong electric arc that generated between a positively charged electrode and negatively charged electrode to ionize the flowing gases into plasma state, then followed by injecting powdered ceramic into the plasma jet in order to melt the powder materials and propelling them onto the work-piece surface. This process allows the metal substrate to be coated with ceramic leaving a smooth protective layer. Figure 14: Atmospheric Plasma Spray Coating Technique 2.3.3 Finishing The manifold is then allowed to air dry for around 20 minutes before placing it in the oven to set the coating. Once it has bakes, the manifold is polished with a steel wool brush. 2.4 Advantages and Disadvantages of Ceramic Coating 2.4.1 Advantages of Ceramic Coating Ceramic coating protect the metal surface against rust and corrosion which extends the components life Ceramic coating create thermal barrier which reduces heat lost which enhance the engine performance and reduces the engine bay temperature. Ceramic coating can sustain high temperature up to 1100 which make it suitable for high heat application in aerospace as well as automobile industry. Ceramic coating can survive bending and shock without crack, peel or forming chip Ceramic coating comes in a variety range of colour which in turn improves the aesthetic for the component. Ceramic coating can be removed easily 2.4.2 Disadvantages of ceramic coating ceramic coating can be a costly process uniformity of coating thickness can be quite difficult to maintain might be difficult to apply to complex shape component owing to inside corned can have low film thickness according to Faraday Cage Effect 2.5 Microstructure of ceramic coating by Atmospheric Plasma Spray, APS Figure 15: (a) (b) Microstructure of ceramic from literature (c) Ceramic microstructure with thichness measured.
Friday, October 25, 2019
Means To Tragic Ends (oedipus :: essays research papers
Does man really have free will, or does free will lie within a system of limitations that gradually compose a web of circumstantial fate that ultimately cannot be torn apart? The events in both Oedipus The King and Antigone controversially suggests that man ultimately chooses his own deeds and endures fate and the responsibilities for them. These events brought by fate are unmistakably aggravated by certain characteristics within the characters. Oedipus, from Oedipus The King, Antigone, and Creon, both from Antigone possess such flawed characteristics that lead to their tragic ends. Ã Ã Ã Ã Ã Oedipus possesses a multitude of characteristics, some of them common to other characters, but pride is exceptionally prevalent. This characteristic, which margins with utter arrogance, appears to be one of the dominant flaws that causes Oedipus’ tragic downfall. This is plainly established in the beginning of the play in which he states “I Oedipus whom all men call the great.'; (p11.8). This is strengthened by the Priest’s replies of “...Oedipus, Greatest in all men’s eyes,'; (p12.40) and “Noblest of men'; (p12.46). Ã Ã Ã Ã Ã However, pride is not the only characteristic which contributes to Oedipus’ tragic end. There exists his temper, which is initially presented in the argument between Teiresias and himself. After Teiresias speaks the truth as factual, Oedipus replies “Do you imagine you can always talk like this, and live to laugh at it hereafter?'; (p26.367) and then soon after calls Teiresias a “fool'; (p29.433). His temper is also exposed when he threatens to banish or kill Creon after Creon’s attempted reasoning. Ã Ã Ã Ã Ã Another contributing factor is his suspicion for others, this is evident where he questions Teiresias “Was this your own design or Creon’s?'; (p.27.377). He is falsely rationalizing that Teiresias is secretly plotting, in coalition with Creon, to overthrow him. Ã Ã Ã Ã Ã Moreover, Oedipus has an unrelenting pursuit for the truth, which is demonstrated when he finally believes that he is the murderer and that Polybus was not his father. Nonetheless, he continues with his search with an extensive questioning of both his wife Jocasta and the messenger. Ã Ã Ã Ã Ã Furthermore, Oedipus exhibits self-loathing and a desperation towards the end of the play. After the facts have been voiced, he desperately attempts to rationalize the evidence and states, “You said that he spoke of highway robbers who killed Laius. Now if he uses the same number, it was not I who killed him. One man cannot be the same as many. But if he speaks of a man travelling alone, then clearly the burden of the guilt inclines towards me.
Thursday, October 24, 2019
Food Safety Essay
Complete the food safety interactive quiz. Use the information from the interactive quiz to complete the following responses regarding food safety practices. For each of the following food safety practices, share at least 2 statements from the interactive quiz. Be sure to put these statements in your own words and explain why they are helpful in preventing food borne illness. An example would be: When dining from a buffet, make sure hot food is hot and cold food is cold. Food that is 40 ââ¬â 140 degrees Fahrenheit has already begun to grow bacteria and pathogens. Clean (16 points): 1. Make sure to never use the same cooking utensils for food that is cooked and food that is raw. 2. Wash your hands before and after working with different food such as when you are preparing meat Separate (16 points): 1. Separate meat that is raw and meat that is cooked. 2. Keep meats and vegetables separated. Dont just judge food by how it looks, instead use a thermometer to make sure that the food is cooked completely . Keep food at their required temperature so that it doesnââ¬â¢t grow any harmful bacteria. Chill (16 points): 1. Keep an ice pack next to refrigerated food when you pack lunch. 2. Have the refrigerator at 40? F or below and the Freezer at 0? F In your own kitchen, explain 2 food safety practices you feel your family can improve and 2 food safety practices you feel your family does well. (16 points) In my house we always chill left overs and separate raw food from cooked food. Some of the things we can improve in orther to have healthier and safer cooking practices include washing our hands more frequently and using a food thermometer rather them just using our eyes to inspect how cooked it is. In what ways do your school and community practice or promote food safety to contribute to your personal health? (20 points) My school school offers lunch to those students who want it and they practice food safety by always keeping food chilled and warmed at the temperature required. They also wear gloves and hair nets to keep bacteria from the food that is being served.
Wednesday, October 23, 2019
Personal Values and Ethics Essay
Those people and things I value most is God, my recovery, self, respect, family, education, career, freedom, friends, community, and finance. For me, these people and things are desirable and important. However, there are times when those things and people cause dilemma in my life, and when I neglect to attend to them, especially when it is those values concerning family, friends, and community, I develop this personal conflict. One thing I have learned to value most is my personal relationship with my Higher Power whom I chose to call ââ¬Å"God. While in active addiction I did all types of horrible things that I should have lost my life for. However, God kept me safe and healthy throughout my entire time in active addiction. For instance, there were times when I would be coming down off a multi-month drug binge and was hungry, but I was too week from the large amounts of drug intake to go find food. My Higher power always came through for me and provided me with the much needed nourishment for my body. Once my mind started to clear, I was could see how my Higher Power had been keeping and carrying me and learned to appreciate and value Him a great deal. Because of my past active addiction, other than drugs I have not always known what I valued. In fact, there was a time when I did not value myself, anything, or anyone. Since being in recovery I have learned to value me, other people, and things. I think that what shaped my values most is my being forced to honestly work a 12-step, self-help program and actively participate in the recovery fellowship of Narcotics Anonymous (N. A. ). In the rooms of N. A I was able to find me and my truths, and this provided me this strong desire to seek personal change and find a new productive way of living life. Acquiring this strong desire for lifestyle changes and seeking it in this fellowship, I was forced to involve myself with people who are free of drugs, living a N. A. Program way of life, and had significant clean time. It was these individuals who molded, helped, and shaped me to develop a sense of self. These new people in my life loved me until I learned to love myself, and this provided the opportunity for me to learn to value me and those people and things in my life at the time. As I continue to fight for my recovery, and as time go by, I noticed that over the years those people and things I value most changes on some level, and honestly working a program has provided me a much better quality of life. For this I have developed this great value for the program of Narcotics Anonymous and its members. Early in my recovery I lived with and in a lot of guilt. At that time, the only thing I had learned to somewhat value was I, and I had done and caused so much damage in my life. This led to my having to deal with a lot dilemmaââ¬â¢s that lead to a lot of convictions, and as a result of these convictions, I began to value myself more. Because of this I was later able to appreciate me and not do anything else that could bring potential danger in my personal life and would make me feel worse than I was feeling. Since being in recovery with significant clean time, the level of how much I value people and things has changed. I think that by my incorporating the principles of the 12-steps in my personal life effects my approach and outlook to life. In honestly working these steps I am forced to look at both me and how I am interacting with society. As a result I find that I appreciate people and things more and have come to value them more. I value my family a great deal, especially my immediate family, e. g. , my mom, sister, brother, stepfather, guide mother, and guide sisters. They are always there for me no matter what or how bad I or it had gotten. I did not call often for help, but when I did my family was there to love and support me in any way they could. Today, they are right here on the side lines cheering me on, and they show their appreciation for my new way of life through each of their actions. As a result I have built some wonderful relationships with my family and, I have learned to value and appreciate those relationships a great deal. While facing one of my many horrible consequences I made the best decision, I could have ever made. This was the decision to go back to school to earn my GED. Because of my consistent good accomplishments in school it provided me this great since of appreciation for school and at some point I began to value education a great deal. Today I still value education and although I am facing many dilemmas in my life that, causing conflict with this value, I still push myself to accomplish my education goal. I think that going to prison is something that helped me establish a great value for my freedom. It was not a good feeling being locked up in a small cage like some animal. Neither did it feel good to have others tell me when to sleep, eat, bath, etc. While in prison I was forced to be alone with me and learn how to be in a relationship with me. As a result my sense of self multiplied, and it was the first time that I felt this sense of personal value. Although I had lost the ability to do so I have always valued work and establishing a career. This is one value that was instilled in me from my mother. I watch her work day in and day out to provide for and take care of us. Due to my being raised in a neighborhood where many of the childrenââ¬â¢s parents did not work I took great pride in and valued the fact that my mom had a job. Not just a job but a job that allowed here to give me and my sister most of the things we wanted. Watching my mom work instilled in me a desire to work as well. Once I started to work, how I valued working changed because I was now getting a check. Making money from work provided me this very strong value and desire for both work and money, and it also confirmed for me that working a job was the only way I could make money, thus being able to take care of me and make it in this world independently. Here recently I have come to value friends and community. I guess that this is due to my having established some healthy relationships that I appreciate and desire versus the those that I was accustomed to in my past and resented. Today, I am well liked and respected by personal friends and people in my community, and this provides me a sense of belonging and being apart. An ethical dilemma I had little difficult with was one that happened when I was working as a case manager at this Social Service Agency. There was a female client who came into the office seeking rental assistance services. During the assessments it was learned that she had participated in another rental assistance program through another agency six months prior. Due to the agency being in relationship with this agency, through Memorandum of Understanding, our office was able to call their office and provide and get information about this young lady participation in their program. After contacting the partnering agency it was learned that the client had participated in another rental assistance program four months prior to receiving services there. As a result it was believed that the client was abusing the rental assistance programs and funds in the area and was denied services. This did not cause much conflict with my personal values because this client was abusing the system. I know of many people who could really use, need, and deserve the assistance and here this lady is abusing it. I wanted to be angry with her and sabotage her file so she could not ever receive any kind of services from the agency again, but I knew this would be unethical practice and I did not do it. I felt that this client deserved to be denied for assistance; however, many of the staff including myself argued that contacting these external agencies about the case, and providing information about the client was in violation of the clientââ¬â¢s confidentiality rights. I think that this lady and others like her needed to be stopped, and the rental assistance program funds needs to be protected from abusers like this client. I think that I would have a lot of ethical dilemmas if I worked with the Department of Corrections (DOC) population, especially if I am employed in their health care/treatment system. I tend to believe that many of the individuals in this population do not want treatment and would refuse it if they could. DOC forces many individuals in their population to participate in treatments that he or she do not really understand and really have no interest in understanding. In fact, it is almost unheard of for inmates within the Department of Corrections to receive an informed consent prior to receiving various treatments or services. In most cases the health care department calls the inmate over and tells him or her what is going to be done and walks away without any further information until it is time to provide the treatment or service. This causes a dilemma for me because I believe that everybody, including prison inmates, should be entitled to the same privileges and freedoms when receiving treatment in prison. He or she should be provided an informed consent and allowed the opportunity to volunteer for services or treatment. There are some things that I desire and feel are important to me, e. g. , God, my recovery, self, respect, family, education, career, etc. Due to convictions that result from the desires to and importance of these people and things, I must sometimes deal with personal conflicts. Over the years, I have learned to value my relationship with God. God is at the top of my value list because he has done so much in keeping me. Today, I value myself a great deal. When I do not attend to my personal needs I feel this great sense of conviction and I think this result from my involvement with the Narcotics Anonymous program. I value the N. A. program because it and its members has provided me a new way of life at a greater quality.
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