Thickness of the grown layers are measured and controlled within the range of tens of angstroms to several microns. Different layers must be doped, the donors or acceptors, to create pn-junction with a large concentration of electrons in the n-type region and holes – in the p-type region. In one process, which lasts several hours, the structure can be grown on 6 – 12 substrates of 50 – 75 mm. It is very important to ensure and monitor homogeneity of the structures on the surface of the substrate. The cost of facilities for epitaxial growth of semiconductor nitride, developed in Europe (the company Aixtron and Thomas Swan) and the U.S. (Emcore), about 1,5 – 2 million dollars. Experience of different companies showed that learn to get to this setup, the competitive structure with the necessary parameters can be a time of one to three years. This is – technology that requires high culture. An important step in technology is the planar Processing of films: their etching, creating contacts to n-and p-layers, the coating metal films for the pins. Film grown on a substrate can be cut by a few thousand chips ranging in size from 0,24 x0, 24 and 1×1 mm2. The next step is the creation of these led chips. Necessary to mount the crystal in the case, make contact conclusions, make optical coating, antireflective surface for the extraction of radiation or reflecting it. If it is a white light-emitting diodes, it is necessary to evenly phosphor. We must ensure that heat from the crystal and the corps, to make a plastic dome, focusing the radiation in the desired solid angle.
Posts Tagged ‘technology’
Professional of the Computation To insert this way of learning in school, is necessary professional specific for this task, unhappyly this context not is followed to foot of scratch, much institutions of education lacks of professional of this transport, when this professional not exists in school, pupils leave to learn, due to the same much computers are sucateados and forgotten, since public agencies contract people who due to instruction damage the machines for handling of incorrect form, moreover with passing of the time if they had become, its Hardware is outdated, and improper it stops to support softwares of the present time. This type of necessarily necessary person to be permitted in computation, one of great the problem faced for the schools, since this type of professional is not accessible to all the education institutions, therefore the course of licenciatura in computation is a new course and the formed people, had finished to leave the university. She disciplines it of computation is only for support the others you discipline, to exemplificar this it is good for sitar the Inter-disciplinaridade that is primordial in the life of these professionals, this means that they had become the lesson of Portuguese or mathematics somewhat well more interesting and empolgante, so that the pupil understands the subject more good the school consequentemente will have that to adapt this new professional. Educative Computer science if characterizes for the use of computer science as it has supported the professor, as an instrument more in its classroom, in which the professor can use these placed resources its disposal. In this level, the computer is explored by the professor specialist in its potentiality and capacity, becoming possible to simulate, to practise or to live deeply situations, being able until suggesting abstract, basic conjecturas the understanding of a knowledge or model of knowledge that if is constructing.
All the personal computers to the measure that the time passes start to join dirt in the screen and crumbs of food in the keyboard. to keep its clean computer is basic so that it functions perfectly. It sees these tips of as to keep its clean computer:? To clean the monitor it is recommended that if it uses a flannel that does not free lints. This flannel must be humid. For the keyboard it uses a brush with soft bristles and pass well in all the keyboard keys until removing complements the dust.
The external handles also must be clean. First pass a brush in the metallic part of the handle to remove the dust, after pass a humid cloth and soon after a dry cloth and waits a little handle to dry it completely. External part of the cabinet: dislocate all the handles and pass a brush to remove all the dust.? Internal part of the cabinet. This you must have well-taken care of more, mainly in cleaning cooler, that she is the responsible one for leaving its cooled computer, clean cooler with care and remove all the dirt contained in it. Mouse also must be clean, is enough to catch a humid cloth and to clean well all the parts, thus it do not lock more during the use. With these simple tips you obtain to keep its computer functioning for much time. One remembers to make this cleanness at least a time to the month, thus you does not run risks of the computer to ruin due to cleanness.
The streets are being empty and the mothers until prefer that its children are inside of house due to the increase of the violence, but perceive that a thing pulls to another one. She sees well, the increase of the violence in the streets is proportional the reduction of people in the streets also. Therefore when the children only played in the streets and its mothers they were talking with other mothers while its children played, nobody it moved with nobody, therefore they had fear of the people to see its acts and to testify against them. For example, a kidnapper would not commit no crime against a child, while innumerable mothers or people were following it. Without she exists many witnesses, it does not act, now if she does not have almost nobody that can denounce it, is easy to act. Also if she perceives that the relationship of the children with others is not more physicist, therefore with the sprouting of the social nets, can themselves be had innumerable friends and not to know who they are really. Old, I not only talked with my friends looking in its faces and a photo in the front of a monitor, and still he was certain of that he was he himself. Today, a child sees the photo of a friend and she does not know if it is really or another person, an adult in the case, using a false profile and deceiving its naivety and this is terrible.
With this, the small ones are if becoming adult colds that do not know to become related personally and that therefore we see as many cases of violence against another one, divorce cases increasing, therefore one does not know to coexist the differences of the other, among others problems that we see in the current society. the computer start approximately to invade the homes only the twenty years, twenty years What he will be daqui one hundred years? Cad the children? What it is infancy? He is clearly that it is not guilt of the computer, therefore it was created with the intention to facilitate our lives, but the way we are using as it. Not we can transforming in them into slaves of the computer and nor to leave our children to finish thus. So that this does not happen, we must limit the use of the computer for our children and stimulate they to play again of other forms. A child who plays and if amuses of healthful form with other children, has much more possibilities of being a better adult whom she knows to become related in the society. Still she has solution for this decay in the society in these last twenty years, but she will not be of one hour for another one. But who knows, will be able to take than twenty years less so that it comes back to be what she was again. We must act already, while it has hope, therefore computer science is not an end, only one way, but the necessary society to separate to each thing in its appropriate place and time.
To speak on computer science in the education is at the same time and to correspond to the necessities of a informatizada society, but with an index of absolute info-exclusion. It still has much euphoria popular, and exactly intellectual, around the Internet. The social changes produced and foreseen because of this, if do not arrive to cause astonishment, but to understand it as a phenomenon that produces subsidies that can diminish the great hiato that it goes of the illiteracy to the digital letramento. The school must learn to deal with this format of writing that is more complex of what a simple act of speaking in writing. Therefore interferences that do not come of the orality and yes in other discursivos ways occur there. Therefore, in it speaks usual exist gestures, but they do not exist carinhas, emoticons and other resources of the Internet.
The writing in the classrooms comes needing to be renewed, because of the arrival of the technological revolution, that appeared through the computer. Thus, being the way to write it was losing its characteristic and its originalidade. The pupils if come across with a simple language, without rules and accessible to all the social classes. This new language, very easy to express comes if spreading in the educational centers of so lastimvel form that it comes deserving a reflection on the impacts that the Internet comes causing. With this, the change of the culture written for the digital technology caused an impact for those vitiated users procedure the same written. The virtual language modified the process of writing reading that passed for an amazing change who search to critically analyze the production of the pupils. What it comes being observed is that the pupil is not obtaining to differentiate to the writing that if he arrests to a dissertativo text, for example, of a text written used in chat room.
It imagines that the last version of the game was launched that you madly are vitiated, but its computer does not have the necessary minimum requirements so that the game ' rode' well. now, what it leaves more in account: upgrade or to buy a new computer? To answer this question, it is necessary to analyze very the situation and to guarantee well that we will not take no decision precipitadamente. Since the beginning of computer science the hardware (physical aside remark) and software (logical part) are dependents one of the other. Whenever an equipment with the hardware ' top of linha' it is launched, new programs, systems and applicatory they are created. These in turn demand the hardware more advanced than of the previous versions and there the infinite cycle of the technological evolution is perpetuated. Whenever it is said in upgrade of the hardware, a series of questions must carefully be verified, between them can cite: The processor is really unbalanced? Exists the possibility to install more memory? One necessity exists new hard disk? The plate mother supports upgrade? I would know to make the installation of the new components? These questions must be answered with very well-taken care of and common-sense. You do not advance to buy a super hard disk of 1 Terabyte if its plate mother does not support this everything.
The same valley for the memories, therefore some models do not possess more modern versions or same they had left of being manufactured. In some cases the only possibility of upgrade is the substitution of the plate mother, what it would compel consequentemente to also change it the processor. Possibly the current memories would be incompatible, cooler, etc. Beyond all this part ' terica' of upgrade, the knowledge must be led in consideration technician of who goes to make the installation. They exist component specific compatible with specific models of each one of the item that compose a computer. Moreover, a finger in a wrong place can cause the burning of the component. Therefore one sends regards that the installation process is made by professionals, preferential with knowledge in the subject.
Already have the reply for all above the item? Already it knows how much goes to cost? If not, it is hour to search! It considers the final value of each item, adds the total and it adds the value of workmanship hand. If all its upgrade will have an equal or bigger cost that 80% of the paid value for the equipment, not valley the penalty. Moreover, it is certain that very soon it will be unbalanced again and the possibility of upgrade probably will be null. In these in case that valley more the penalty to invest a little more and to buy a more modern computer, that will not have one necessity at least upgrade per 2 years.
Being the computer a machine that it makes possible to write, to correct, to consult some sources, to edit, to print e, also, to interact with proper it and other readers, obviously everything this affects the relation enters the activities of production and the activities of understanding. In relation to the children these authors have proven that when the adults stimulate the use of the computer, the lesser children learn quickly. believes exactly that perhaps in a not distant future many small children learn to read and to write directly of this form, without the necessity to pass for the use of other material supports. They remember that many families and schools already possess these new machines of reading and writing and this reality does not pass unobserved the children. According to studies ours and of many researchers, the computer comes more early attracting the child each time. The use of the resources of the computer as a tool that stimulates the reading of pupils with deficiency of readings, as form to develop this process in motivadora way is evidenced by making possible the active participation and a significant learning. 14 03. PROCEDURES METODOLGICOS the present research, of investigativo character with qualitative boarding, pautou in the interaction between the researcher and the searched citizens as norteador axle of the work. (Minayo, 2009), it affirms that this type of research has for objective to translate and to express the direction of the phenomena in the social world; it is treated in the distance to reduce between the pointer and the indicated one, the theory and the data, context and action. GODOY (1995a, p.62) it standes out the existing diversity between the qualitative works and enumerates a set of characteristics essential capable to identify a research of this type, namely: (1) the natural environment as direct source of data and the researcher as basic instrument; (2) descriptive character; (3) meaning that the people give to the things and to its life as concern of the investigator.
The use of Basic Computer science in practical the pedagogical Activity of Conclusion l Question: In view of the necessity of human development in what it says respect to the pertaining to school learning in its daily as its proper vision the conciliation with the use of practical basic computer science in the pedagogical one if makes necessary to develop new methods of work. Question: To include in its learning is to give to chance to all the participants the access to the use of the media as a media with the more distant social environments in what it says respect to the practical and accessible information the all citizen who of it to need. Question: The information of all the areas of the conviviality social, if used with intelligence and conscience alone will bring useful benefits in its learning. For in such a way the professor it must have a minimum of knowledge in the area, so that this can give has supported the using apprentice, so that this can to develop its learning with excellency and optimum possible exploitation. With the new industrial techniques progressing and adaptando its theories to increase the productions in amount and quality.
Question: In the truth if the school not to offer to equipment and adjusted space, supplying a professional expert of the manuscript of computer science to assist the pupils at the moment of its research the machine has little value. She is necessary that projects of education and learning with conditions become to be developed for the pertaining to school members. But through incentive and freedom of work in the computer science laboratory the pupil will be able to only develop on account proper its work of research with the tools that the computer offers to them. Activity of Conclusion ll Objective Generalities; To develop daily the learning necessary for of the pupil whom of it to need; using to advantage the available technological resources with the computer science inside of the proper classroom.
In the truth, in contrast of what it is thought, the computer (physical tool); softwares (logical tools), is not opportunist substitutes of the humanity. While incisive contribuidores for the improvement of the quality of the process teach-learning, them offer to support and resources to the professors, at the same time where if it searchs to make the difference in the learning and income of the pupil with new styles of learning. The computer is an instrument with potential to modify data social system or mental activity of it uses that it, but cannot decide/to solve the problems of the school and the Education. In the words of the author: Keefe (1989) defines learning style as the way for which the apprentice perceives, it interacts and it answers to the learning environment. Soon, the learning style would be a combination of cognitivas, affective, mannering and psychological the characteristics. Cognitivo style of learning also can be defined as differentiated, individual standard, of reaction ahead of the received stimulation, of cognitivo processing of the information and cognitivo confrontation of reality (Fierro, 1990) 10 In this context, the world of computer science if imposes as alive and uncosteded picture of the technological process of advance soon, is evident the computer necessity as subsidy in the educational area, in the search and magnifying of the knowledge.
As well as the attributions of the book, of the notebook, the penxs and others they had been excellent and indispensable in the evolution of the process to educate, the computer while tool has its peculiar characteristics that they measured they make and it in individual way, a time that it can solve problems complex, manual, to elaborate quickly graphical, to simulate dangerous activities. In this in case that, it differentiates itself of the other instruments for its characteristic of fast processing of data supplied for the users. But, each media has its especificidade and can contribute to reach definitive levels of learning with greater or minor easiness degree.
Mini-course for pharmacists' Sell orthopedics "Dear Colleague, My name is Alexander Volchenkov. For over 10 years I worked in the market of orthopedic products. Starting work in 1997 as consultant physician in one of the retail stores of "NIKAMED" for several years, I took the difficult path from employee to manager Cabin Training Center. It was this work has given me the opportunity to find out who, where, as what forces pushing for orthopedic products and medical products, to understand the first principles of promotion, to get the first successful students not only in the retail sector, but also among the leaders of salons and medical stores. Additional information at altavista supports this article. At the moment I'm several projects related to staff training and consulting companies in the orthopedic market, fill and support the work of the three specialized sites, coordinating the work of the project "orthopedic experts" and do everything to facilitate your activities, make it as simple and effective. In the mini-course for pharmacists' Sell orthopedics, "I want to tell you about the basic features of profit in the pharmacy sector through the implementation of orthopedic izdeliy.Bolshinstvo pharmacies and paragraphs know what the para-pharmaceutical products, successfully working with her. Additional revenue and attract new sales point, active target audience – that's the key factor causing the owners and heads of pharmacy to decide on the introduction of a range of new products. But if for parafarmatsii (such as medical cosmetics, body care, hair and nails, dietary supplements) are characterized by relatively high speed, mass advertising, support for producers, orthopedic products and medical devices often remain in the paddock, occupying the lower shelves windows in the far corners apteki.Naskolko deserved such a position? How true this "residual" approach to medical device? In This mini-course, I suggest you consider the feasibility of batch production and orthopedics mednaznacheniya at the pharmacy. For several weeks I will publish here the lessons mini-course that will help you to understand orthopedic products and to understand whether you need an addition to your standard assortment. If you have any questions, I can ask them for comments on this post or e-mail I suggest you share a link to this entry with your colleagues that are sure to thank you for such a necessary and useful gift for them.