Crystalline silicon

In his speech Steve Jobs explains that you should always trust in yourself to get you somewhere. He states in the beginning of the speech that “You have to trust in something— your gut, destiny, life, karma, whatever. This approach has never let me down, and It has made all the difference in my life.”(Dlugan, 2005). In that part he tells you to just believe in yourself because you never know where you're going to end up even if you wanted to be a teacher and you end up being a doctor. Your…

During Steve Jobs speech to the graduating students at Stanford Jobs uses a lot of examples throughout his lifetime and tries to relate as much as possible to the students through stories about his lifetime and how his companies came about. Jobs uses different forms of Ethos, Pathos, and also Logos in his speech to Stanford. The issue is does Jobs fit the criteria to actually be speaking to graduating students about life challenges and his college experience. Here I’m going to go over the rather…

Steve Jobs turned out to be very successful even though he wasn’t a college graduate. Steve Jobs’ Stanford Commencement speech is considered to be very effective and moving, because of his use of his rhetorical devices. Steve Jobs shares three stories of his past to play upon his rhetorical strategies. While speaking to the Stanford graduates who are ready to start a new chapter in their life; Jobs uses love, loss, discovery, death and adversity to persuade them not to give up as they continue…

Later letters, including what my father wrote when he was dying and the entries my mother made in her diaries gave all of us a broader understanding of, and deeper appreciation for, both of them. For this reason I decided to make The Peopling of Silicon Valley, 1940 to the Present Day an oral history. I wanted the people who lived the events to tell their stories. Although I lived a lot of the history of the Valley during the subject period, I realized the book would be better if I allowed a…

Now that we know the whole story, let’s look at both sides of the coin. Sandra Bland was driving to her new job in Texas on July 10th, 2015. She was pulled over by state trooper Brian Encinia because of an “erratic lane change” on the busy highways of Texas in the middle of the day. In the video, yes there is a video, Officer Brian walks over to her car and tells her what he is pulling her over for, and asks for her license and registration. Everything is going fine and Sandra is cooperating…

The Center of Innovation 7.5 million people, thousands of technology startups, infinite possibilities; The San Francisco Bay Area is one that cannot compare to any other area in the world. Not less than one year ago, my family and I traveled to the beautiful city of San Francisco. Originally this trip was so we could spend time with my aunt who lives in the area. Although that was fun, my trip had a much deeper meaning to me. The city made a huge impression on me. I learned that I would like to…

multiple layered dielectric thin films deposited at the top of crystalline silicon substrate using various deposition techniques such as Spray Pyrolysis, Plasma Enhanced Chemical Vapor Deposition, Sputtering and many other similar deposition techniques [16, 18]. Various dielectric materials such as SiNx, SiO2, TiO2, ZnS, ZrO2, AlO¬3¬ and HfO¬2 ¬ can be used as antireflection coating in solar cells. The most widely used ARC is Silicon Nitride (SiNx) and its composites using Plasma-Enhanced…

Chapter 5 Hybridization of Wind With Solar Using Cuk and Sepic Converters This chapter presents a hybrid model of solar and wind energy. This gives the hybridization of wind with solar using the CUK and SEPIC converters. In this model the solar PV panel source is connected to the CUK converter and correspondingly the wind turbine source is given to the SEPIC converter. Solar energy and wind energy are the two renewable energy sources most common in use. Hybridizing solar and wind power sources…

cells: 3.1.1Mono crystalline Silicon PV& Polycrystalline Silicon PV The occupational health issues are associated to chemical burns and inhalation of fumes from hydro fluoric acid (HF) and other solutions of acids (e.g., HNO3) and alkalis (e.g., NaOH) used for cleaning wafers ,removing complete oxide layer, and cleaning the reactor. Performing the slicing of wafers also results in solid waste for example (e.g., small pieces of stainless-steel wire, and coarse slurry composed of silicon…

major technologies are wafer-based silicon and thin-film. Crystalline silicon solar cell is more efficient than thin-film solar cell but that is more expensive to produce. They are most commonly uses in large to medium electric applications like grid connected PV power generation. Mono-crystalline solar cell is manufactured by pure semi-conducting materials so it has higher efficiency (above 17% in industrial production and 24% in research laboratories. Poly-crystalline solar cell is slightly…