Xem 1-20 trên 210 kết quả Our energy
  • Tham khảo sách 'drilling down: the gulf oil debacle and our energy dilemma', kỹ thuật - công nghệ, hoá học - dầu khí phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • As populations increase and countries industrialize, the world’s demand for energy increases. Our supply of petroleum and gas is limited, but the photovoltaic cell offers a solution to the problem of a future energy shortage. This cell is already an important source of energy. In fact, it seems almost like magic. The photovoltaic cell changes sunlight directly into energy. Solar energy – energy from the sun – is clean, easily available, inexhaustible, and free, if the equipment is available....

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  • In consultation with many local organisations and groups the Environment Agency has produced Catchment Flood Management Plans (CFMPs) covering the main 68 catchments in England. These documents set out the strategic context for managing flood risk in a catchment, helping decision makers by identifying the policy options being adopted to manage flood risks. They also help form the position we take in our work to manage assets, watercourses, flood forecasting, and to help land use planning and development.

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  • Electrical energy plays an important role in our daily life. It can universally be applied and easily be converted into light, heat or mechanical energy. A general problem, however, is that electrical energy can hardly be stored. Capacitors allow its direct storage, but the quantities are small, compared to the demand of most applications. In general, the storage of electrical energy requires its conversion into another form of energy.

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  • Steam - The Energy Fluid It is useful to introduce the topic of steam by considering its many uses and benefits, before entering an overview of the steam plant or any technical explanations. Steam has come a long way from its traditional associations with locomotives and the Industrial Revolution. Steam today is an integral and essential part of modern technology. Without it, our food, textile, chemical, medical, power, heating and transport industries could not exist or perform as they do.

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  • In this user-friendly and informative book, prolific author and academic Vaclav Smil provides an introduction to this far-reaching term and gives the reader a greater understanding of energy's place in both past and present society. Starting with an explanation of the concept, he goes on to cover such exciting topics as the inner workings of the human body, and the race for more efficient and environmentally friendly fuels.

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  • Optics and photonics are technical enablers for many areas of the economy, and dramatic technical advances have had a major impact on daily life. For example, in the last decade, advances in optical fiber communications have permitted a nearly 100-fold increase in the amount of information that can be transmitted from place to place, enabling a societytransforming Internet to thrive. As noted in the introduction to Charles Kao’s 2009 Nobel Prize lecture on his work in optical fiber communications, “the work has fundamentally transformed the way we live our daily lives.

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  • Rising prices at the pump affect everybody – workers and farmers; truck drivers and restaurant owners. Businesses see it impact their bottom line. Families feel the pinch when they fill up their tank. For Americans already struggling to get by, it makes life that much harder. Demand for oil in countries like China and India is only growing, and the price of oil will continue to rise with it. That’s why we need to make ourselves more secure and control our energy future by harnessing all of the resources that we have available and embracing...

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  • The U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy oversees the Office of Transportation Technologies, which includes the Office of Heavy Vehicle Technologies (OHVT), the Office of Advanced Automotive Technologies (OAAT), the Office of Fuels Development, and the Office of Technology Utilization. OHVT was created in March 1996 when the Office of Transportation Technologies was reorganized. Its sister organization, OAAT, focuses on the development of advanced automotive technologies, while OHVT focuses, for the most part, on technologies for trucks.

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  • An honest heart is an open heart. If we are dishonest in any way with ourselves or with others, it means we are in hiding. There is a wall, a barrier behind which we conceal something of ourselves. Subtle tension will be our companion, and while most of us learn to live with it, it drains our energy and tightens our muscles. On the other hand don't be too honest with others - feel their pulse - sometimes others are not ready to hear what's in your heart. But know that when you are honest you will experience a level of inner relaxation that you had...

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  • However, engineering freshmen are less interested in what was or what is than they are in what will be. Young men and women exploring engineering as a career are excited about the future—their future—and about the engineering challenges 10 to 20 years from now when they are in the spring and summer of their careers. In the words of the four-time Stanley Cup winner and Hockey Hall of Fame member Wayne Gretzky, I skate to where the puck is going to be, not where it’s been.

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  • In an age of uncertainty, peering 15 years into the future may seem like hubris. But ignoring long-term trends—demographic, economic, corporate—is an even less attractive option. Understanding the long-term future is vital in ensuring that strategies are sustainable, that opportunities are identified at an early stage and that challenges are addressed beforethey become insurmountable. This report assesses likely changes to the global economy, to eight major industries and to corporate structures between now and 2020. Our research drew on three main initiatives....

    pdf96p truongdoan 10-11-2009 124 59   Download

  • Being a leader is tougher than ever! Workplaces are more complex and competitive. Change is occurring at the speed of light. Work relationships need to be built in broader, matrixed, and more global organizations. Today’s leaders need new skills and more support to respond to the challenges and opportunities that rocket their way like water out of a fire hose. I have great respect for the people who take on the role of leader. Great leaders are able to make a significant difference. They shape results and our work experience. Being a leader can also be a stressful and thankless job....

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  • Examples of the source code and wiring diagrams used to attain the system function as described in this document can be downloaded from our website under this link. The example source code is in the form of configuration, application and import files. Use the appropriate software tool to either open or import the files.

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  • The planet is a marvelous place with its blue skies, wild storms, deep lakes, and rich and diverse ecosystems. The tides ebb and flow, baby animals are born in the spring, and tropical rain forests harbor an astonishing array of life. The Earth sustains living things and provides humans with the resources they need to maintain a bountiful way of life. These resources include water, soil, and nutrients to grow food, and the mineral and energy resources to build and fuel modern society, among many other things....

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  • Research, development and industrialisation of renewable energy are currently moving at a rapid pace worldwide. Biofuels play significant roles in decarbonisation of our future energy needs and act to mitigate deleterious impacts of greenhouse gas emissions. Liquid transportation biofuels (bioethanol and biodiesel) now represent key contributors to the bioenergy portfolios in many countries.

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  • Risks pervade our life and can have an impact at individual, business and social levels. Science and technology, medicine, transport, economics and environment are examples of fields where various kind of risks can arise, eventually causing serious damages if not properly controlled and managed. If we consider economics, we can argue that enterprises need to compete in order to survive thus incurring in several kinds of risks such as legal, operational and financial ones.

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  • The Encyclopedia of Soils in the Environment is a vitally important scientific publication and an equally important contribution to global public policy. The Encyclopedia brings together a remarkable range of cutting-edge scientific knowledge on all aspects of soil science, as well as the links of soils and soil science to environmental management, food production, biodiversity, climate change, and many other areas of significant concern.

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  • If we doni, we risk losing the market share that we already have. I would like to share the results of my research with you. It demonstrates the need to focus our energy toward this younger age group. Please let me know if we can meet this week to discuss it. When developing a plan for a new business, the't

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  • Vibrations are a part of our environment and daily life. Many of them are useful and are needed for many purposes, one of the best example being the hearing system. Nevertheless, vibrations are often undesirable and have to be suppressed or reduced, as they may be harmful to structures by generating damages (possibly leading to dramatic and spectacular accidents such as the case of the Aloha 243 fl ight or the bridge of Tacoma Narrows) or compromise the comfort of users through noise generation of mechanical wave transmission to the body....

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