Xem 1-20 trên 23 kết quả Nuclear option
  • Increasing awareness of the need to reduce greenhouse gas emissions has renewed interest in nuclear power generation. At the same time, the longstanding logjam over how to manage spent nuclear fuel continues to hamper the expansion of nuclear power. If nuclear power is to be a sustainable option for the

    pdf0p xuancoem 04-02-2013 14 1   Download

  • The world faces serious difficulties in obtaining the energy that will be needed in coming decades for a growing population, especially given the problem of climate change caused by fossil fuel use. This book presents a view of nuclear energy as an important carbon-free energy option. It discusses the nuclear fuel cycle, the types of reactors used today and proposed for the future, nuclear waste disposal, reactor accidents and reactor safety, nuclear weapon proliferation, and the cost of electric power.

    pdf701p nhulan0908 29-09-2012 40 22   Download

  • This paper summarizes the presentations and discussion at the Energy Options for the Future meeting held at the Naval Research Laboratory in March of 2004. The presentations covered the present status and future potential for coal, oil, natural gas, nuclear, wind, solar, geothermal, and biomass energy sources and the effect of measures for energy conservation. The longevity of current major energy sources, means for resolving or mitigating environmental issues, and the role to be played by yet to be deployed sources, like fusion, were major topics of presentation and discussion....

    pdf47p beobobeo 01-08-2012 51 21   Download

  • The concept of tissue engineering is to regenerate target tissue by mimicking the developmental or regenerative process of that tissue. Thus, it can be considered an ideal therapeutic option for treating various tissue defects. Tissue engineering of skin, cartilage, and bone has already been shown both feasible and effective in several clinical studies, and its efficacy has attracted significant attention from both patients and doctors.

    pdf274p kmkmkmkmkm 08-09-2012 21 5   Download

  • The last three decades have witnessed tremendous advances in the understanding and treatment of breast cancer. As a result, starting shortly before the 1990s, a persistent decrease in breast cancer mortality has been documented, primarily in the United States and in several European countries. Breast cancer, however, remains an important health problem. In this book, which is mainly dedicated to nuclear medicine, experts have thoroughly reviewed the achievements made in the diagnosis, monitoring and treatment of this disease.

    pdf307p camchuong_1 10-12-2012 31 5   Download

  • The European Physical Society (EPS) is an independent body funded by contributions from national physical societies, other bodies and individual members. It represents over 100,000 physicists and can call on expertise in all areas where physics is involved. The Position Paper consists of two parts, the EPS position, summarising the recommendations, and a scientific/technical part. The scientific/technical part is essential to the Position Paper as it contains all facts and arguments that form the basis of the EPS position. (i) The objectiv...

    pdf30p beobobeo 01-08-2012 16 3   Download

  • Developing countries devote all their available capacities to safeguard their small and poor farmers from being sidelined by things like growing competition through efficient support measures. They use their flexibilities to provide production-linked support to the fullest extent as, on the one hand, such payments are easier to administer and as they help creating basic food security by increasing production of staple crops. Support to rural development in general and to the environment would rank lower.

    pdf36p tieuyeuquai456 08-10-2012 22 2   Download

  • A similar effort may well be in order targeting the gay and bisexual men who are most at risk, particularly those who are living with HIV. Further research is needed to determine the prevalence and incidence of ASIL in the general population of gay and bisexual men outside of major urban centers. Programs are needed to train colposcopists in the skills of identifying and biopsying ASIL; training of colorectal surgeons is needed to optimize identification and treat- ment of ASIL.

    pdf16p taisaokhongthedung 09-01-2013 22 1   Download

  • Choose the word whose underlined part pronounced is differently from that of the rest. 1. A. compete B. sport C. effort D. introduce 2. A. sun B. solar C. safe D. sure 3. A. heat B. great C. release D. reach 4. A. polluted B. consume C. nuclear D. fuel 5. A. exhaust B. source C. enormous D. cause II. Choose the option that best complete the sentence or substitute for the underlined part. 6. My father, as well as his friends, _______ going to the stadium for a special football match this afternoon....

    doc3p neyugnmall001 24-08-2012 90 39   Download

  • Investor base: about 70 percent of private bonds were purchased by banks in 2011. Their participation has increased further recently partly because they have faced constraints in expanding consumer loans given increased risk and higher cost in the sector, and therefore have sought alternative higher-yield investment instruments. Liquidity in the secondary market is very limited as many banks tend to hold private bonds until maturity. Retail investors’ participation remains low (see Figure 11). ...

    pdf16p hongphuocidol 04-04-2013 28 5   Download

  • Widespread lack of health insurance is arguably the most urgent health problem facing Latinas today. Latinas not only have the highest uninsured rate of women from any racial/ethnic group (37%), but the number of uninsured continues to rise and shows no signs of abating. 27 For example, in 1994, 46% of low-income Latinas reported having no health insurance. By 1998, the number of uninsured, low-income Latinas had climbed to 51%.

    pdf21p le_minh_nha 25-12-2012 39 3   Download

  • In fiscal 2011, SBA-backed loans touched the lives of 6,308 small business owners in Region VI states – Arkansas, Louisiana, New Mexico, Oklahoma, and Texas. That amounts to more than $2.7 billion in financing, helping small businesses here create jobs and build the economies of their communities. The positive impact small businesses have on their communities and on the national economy is part of the reason SBA Administrator Karen Mills supports President Obama who is urging legislation to keep America’s small businesses moving forward.

    pdf44p bi_ve_sau 05-02-2013 15 3   Download

  • Voice over Internet Protocol (VoIP) is a form of communication that allows you to make phone calls over a broadband internet connection instead of typical analog telephone lines. Basic VoIP access usually allows you to call others who are also receiving calls over the internet. Interconnected VoIP services also allow you to make and receive calls to and from traditional landline numbers, usually for a service fee. Some VoIP services require a computer or a dedicated VoIP phone, while others allow you to use your landline phone to place VoIP calls through a special adapter.

    pdf5p doiroimavanchuadc 06-02-2013 15 3   Download

  • Developed countries in lower latitudes will be more vulnerable - for example, water availability and crop yields in southern Europe are expected to decline by 20% with a 2°C increase in global temperatures. Regions where water is already scarce will face serious difficulties and growing costs. The increased costs of damage from extreme weather (storms, hurricanes, typhoons, floods, droughts, and heat waves) counteract some early benefits of climate change and will increase rapidly at higher temperatures.

    pdf37p trinhcaidat 19-04-2013 20 3   Download

  • Organic milk producers usually begin as operators of conventional dairies that go through what can be a challenging and costly transition process. Many changes in such areas as animal husbandry, land and crop management, sourcing new and different inputs, and initiation of the certification process, among others, are required during transition. For example, the pasture and cropland providing feed for organic dairies must be managed organically for a minimum of 36 months before it can be certified.

    pdf45p conduongdinhmenh 07-05-2013 9 3   Download

  • Both the retreat of the glaciers and the rise of oxygen in the ocean may have spurred the rise of the animals. All animals need oxygen to fuel their metabolism and to build their tissues. The low levels of oxygen in the oceans may have made it impossible for the ancestors of animals to evolve into multicellular creatures. If a rise in oxygen opened the door for animal evolution, what pushed the ani- mals through? Part of that answer may lie within the animals themselves—in particular, in the set of genes that control their development.

    pdf32p machuavo 19-01-2013 21 2   Download

  • Red blood cells contain hemoglobin. Hemoglobin helps red blood cells carry oxygen from the lungs to other parts of the body. People with normal hemoglobin have mostly Hemoglobin A in their red blood cells. People with sickle cell disease have mostly sickle or Hemoglobin S (Hb S) in their red blood cells. Hb S is an abnormal type of hemoglobin. In people with sickle cell disease, Hb S causes the red blood cells to change from a round shape to a sickle or banana shape. Also, Hb S causes the red blood cells to become rigid and sticky. This leads...

    pdf13p connhobinh 10-12-2012 26 1   Download

  • Selected policies, institutions, and environmental factors, on the other hand, have a clear impact on education attainment. In particular, family background and teacher quality have been identified as important explanatory variables for student achievement. School autonomy and emphasis on assessing student performance are likely to raise education attainment, while teacher unions’ influence may have a negative impact.

    pdf52p chiecxedien 02-01-2013 18 1   Download

  • This guideline is an update of the previous Guideline on In- fant Oral Health Care, revised in 2009. This revision included a hand search of literature as well as a new search of the MEDLINE/PubMed ® electronic database using the following parameters: Terms: “infant oral health”, “infant oral health care”, and “early childhood caries”; Fields: all; Limits: within the last 10 years, humans, English, and clinical trials. Papers for review were chosen from the resultant list of 449 articles and from references within selected articles.

    pdf13p chiecxedien 03-01-2013 17 1   Download

  • Proper care during pregnancy and delivery are important for the health of both the mother and baby. Women who had given birth in the five years preceding the survey were asked a number of questions about maternal health care. For the last live birth in that period, mothers were asked whether they had obtained antenatal care during the pregnancy, whether they had received tetanus toxoid injections, and what type of assistance they received at the time of delivery and where the delivery took place. Tables 7.1 and 7.2 present the information on these key maternal care indicators.

    pdf36p nhamnhiqa 01-03-2013 10 1   Download

Đồng bộ tài khoản