Read instructions Essay Example | Topics and Well Written Essays - 500 words

Read instructions - Essay Example According to Jess Coleman, the main aim of according death penalty to convicts is to deter, control, and ultimately curb crime. However, he argues that whether death penalty has achieved its purpose is a point of discussion. He argues that any executions take place in a violent manner though the intention is usually honorable. He notes that no substantial evidence relates increased executions to reduced crime. Instead, he observes that there is a correlation  between increased executions and rise in crime in countries like China, Iran, Yemen, Sudan, Tunisia, Syria, Egypt, Iraq, North Korea, and Libya. In addition, he argues that ultimately what the death sentence achieves is death and not justice. Moreover, he notes that just like in any other policy, the society and the government is not ready to deal with the aftermath of the death penalty. As such, he argues that governments should look for better and ethical ways of holding criminals accountable than subjecting them to a death penalty (Coleman Web). Indeed, the author’s purpose is to refute the idea that death penalty is justified in the society. He uses trusted statistics to prove that death penalty barely reduces crime in the society. He seeks to point out the need to find out other avenues of seeking justice than convicting criminals to death. I agree with the author’s argument that death penalty do not deter crime. Actually, as he portrays in the data no substantial evidence relates increased executions to reduced crime. This is so because in many cases death penalties rise from failed legal process where convicts do not get a chance to defend themselves. Others rise from vengeance as states seek to silence citizens who oppose the government. At the same time, the offended person gets no justice when the offender dies. It would serve the victim better if the criminal takes responsibility than dying. Actually, two wrongs do not make

Cryogenic treatment of metal Essay Example | Topics and Well Written Essays - 500 words

Cryogenic treatment of metal - Essay Example Untempered martensite should, therefore, have treatment below the minimum critical temperatures of the metal so as to enable diffusion of the excess carbon from the body-centre tetragonal structure hence it creates a more stable structure. Tempering leads to an even distribution of alloying elements in precipitation-hardening alloys like super alloys of aluminum (L.K. Zhang. 148). The elements cause internal reactions, which results in the formation of inter-metallic phases referred to as precipitates. The precipitates formed during tempering strengthen the alloys. In addition, multistep tempering can result in the formation of several precipitates that effect to high strength alloy. Cryogenic treatment is carried out in metals in the process to enhance metallic wear characteristics. Cryogenic metal treatment is quite a new metal treatment process in engineering and is one of the most utilized metal treatment processes in the industry (Xiaojun Jianga 62). Utilization of cryogenic temperature (below -2400 F) is a new application in metal treatment especially in the ultra-cold realm. The method was tried in early 1940s, but it was found to produce thermal stresses because of the rapid cooling of the metal in liquid nitrogen. Because of the formation of thermal stresses, cryogenic treatment was not in use for industrial purposes until late 1960s. Cryogenic metal treatment process was improved to the use of gaseous nitrogen, which results in reduced formation of thermal stresses (L.K. Zhang. 32). There are three major cryogenic treatment process established in mechanical engineering. Initially, the metal is slowly cooled down from ambient atmospheric temperatures to cryogenic temperatures. Cooling of the metal parts slowly leads to a reduction in the formation of thermal stresses. Slow cooling process also ensures that the general