Xem 1-20 trên 21 kết quả Solar activity
  • This book consists of a selection of original papers of the leading scientists in the fields of Space and Planetary Physics, Solar and Space Plasma Physics with important contributions to the theory, modeling and experimental techniques of the solar wind exploration.

    pdf0p qsczaxewd 22-09-2012 34 7   Download

  • Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Solar activity, global surface air temperature anomaly and pacific decadal oscillation recorded in urban tree rings...

    pdf14p toshiba5 15-09-2011 17 2   Download

  • The Complete Book of Our Solar System provides 352 pages of fun exercises for students in grades 1 to 3 that provide fascinating lessons about our solar system. Lessons cover topics including the planets, the sun and moon, space exploration and travel, and more! it also includes a complete answer key, user-friendly activities, and easy-to-follow instructions. --Over 4 million in print! Designed by leading experts, books in the Complete Book series help children in grades preschool-6 build a solid foundation in key subject areas for learning succss.

    pdf290p layon_5 30-03-2013 32 16   Download

  • This book represents recent research on tropical cyclones and their impact, and a wide range of topics are covered. An updated global climatology is presented, including the global occurrence of tropical cyclones and the terrestrial factors that may contribute to the variability and long-term trends in their occurrence. Research also examines long term trends in tropical cyclone occurrences and intensity as related to solar activity, while other research discusses the impact climate change may have on these storms....

    pdf262p cucdai_1 20-10-2012 17 2   Download

  • A look on energy, renewable energies, energy storage and synthetic fuels, hybrid architecture, fuel cells, hydrogen as a vector of energy of the future.The Earth resources are quite limited in quantity Many challenges to mankind in 21st century: development, health, water, food, demography, education, energy.In physics, energy (Ancient Greek: ἐνέργεια energeia "activity, operation"[1]) is a quantity that is often understood as the ability a physical system has to produce changes on another physical system.

    pdf156p dienquochuy 21-12-2012 42 19   Download

  • (BQ)Ebook Teacher's friend publications: July and Aug - A creative idea book for the elementary teacher includes Making the most of it! Calendar - july and august! Summer activities! Watermelon, pizza & ice cream! 4th of july! the wild west! Our solar system! Let's eat nutriciously! A new start! Bulletin boards and more! Answer key! Thematic index to teacher's friend monthly books!.

    pdf144p thieulam5782 04-10-2015 32 12   Download

  • This book provides a general introduction to the popular topic of climate variability. It explores various aspects of climate variability and change from different perspectives, ranging from the basic nature of low-frequency atmospheric variability to the adaptation to climate variability and change. This easy and accessible book can be used by professionals and non professionals alike.

    pdf204p cucdai_1 16-10-2012 24 5   Download

  • This section discusses the review of monthly reports, equipment and supply inventories, and segregation of financial administrative duties. In reviewing reports, the reviewer shall sign a departmental reviewer's certification log (which should include the account numbers, transaction month, reviewer's signature, and the date received) for the DaFIS transactions and the departmental reviewer's certification section printed on the last page of payroll reports.

    pdf44p lenh_hoi_xung 22-02-2013 15 4   Download

  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí hóa hoc quốc tế đề tài : Performance characteristics of polymer photovoltaic solar cells with an additiveincorporated active layer

    pdf5p sting03 06-02-2012 23 2   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Performance characteristics of polymer photovoltaic solar cells with an additiveincorporated active layer

    pdf5p sting07 16-02-2012 21 2   Download

  • The concept of acoustic wave is a pervasive one, which emerges in any type of medium, from solids to plasmas, at length and time scales ranging from sub-micrometric layers in microdevices to seismic waves in the Sun's interior. This book presents several aspects of the active research ongoing in this field. Theoretical efforts are leading to a deeper understanding of phenomena, also in complicated environments like the solar surface boundary.

    pdf0p ktcn_1 10-07-2012 36 11   Download

  • There is an upward trend that human activities involve more electric power nowadays and for years to come. And we will soon be facing shortage of electricity supply if we rely solely on non-renewable power generation from fossil fuels such as coals. Renewable energy generation has proven effective in meeting the demand.

    pdf157p namde01 10-04-2013 53 10   Download

  • LIFE ON EARTH ULTIMATELY DEPENDS ON ENERGY derived from the sun. Photosynthesis is the only process of biological importance that can harvest this energy. In addition, a large fraction of the planet’s energy resources results from photosynthetic activity in either recent or ancient times (fossil fuels). This chapter introduces the basic physical principles that underlie photosynthetic energy storage and the current understanding of the structure and function of the photosynthetic apparatus (Blankenship 2002). The term photosynthesis means literally “synthesis using light.

    pdf36p anhphuonggl 11-04-2013 27 8   Download

  • The author wishes to thank AusAID and the Ministry of Agriculture and Rural Development project approval and funding from AusAID. Also like to thank the staff of the Can Tho University, Agriculture University and Institute of Agricultural Sciences Highlands have contributed their time and labor for the project activities. Ministry of Science and Technology (DOST), Ben Tre province thanked their assistance in the farmer survey and selection of sites to evaluate small-scale solar dryer. Smilja Lambert of Mars, Inc..

    pdf18p xau_la 10-02-2012 39 7   Download

  • More recently,  the definition of  this sector has needed  to reflect  the drive  to reduce CO2 equivalent  emissions from the wider economy.

    pdf36p dangsuynghi 15-03-2013 21 7   Download

  • The authors wish to thank AusAID and the Ministry of Agriculture and Rural Development, Vietnam project approval and funding from AusAID. Also like to thank the staff of the Can Tho University, University of Agriculture and Forestry and Agriculture Highland Academy of Sciences has contributed time and labor to operate the project.

    pdf34p xau_la 10-02-2012 34 5   Download

  • Extraction activities disturb the land surface through clearing of vegetation, removal of topsoil, excavation of ore and overburden and the construction of over- burden dumps or solar evaporation ponds. Removal and stockpiling of topsoil for subsequent rehabilitation is carried out at many mining opera- tions. In a number of cases, topsoil is removed and placed directly on landscaped reclaimed areas. This avoids the cost of re-transporting topsoil from stock- piles and the possible reduction of biodiversity.

    pdf206p tieuyeuquai456 05-10-2012 26 3   Download

  • although state solar programs report limited marketing initiatives of their own, this per- spective reflects a narrow definition of marketing – one that primarily focuses on communi- cations-centered initiatives, such as website strategies, public relations activities, and educa- tion of stakeholders. these marketing resources are important.

    pdf34p lenh_hoi_xung 21-02-2013 24 3   Download

  • For retailers, success is easy to measure: it’s the ringing of the cash register. a state solar program’s marketing activities, to be effective, also must lead to an action: an application for a solar program’s financial incentive to purchase and install a solar energy system. While state solar programs are not directly “selling solar installations” to customers, nevertheless, they measure success in the form of megawatts of solar installed. therefore, the state mar- keting approaches and activities must lead the customer to the solar sale.

    pdf148p lenh_hoi_xung 21-02-2013 23 3   Download

  • Solar energy refers primarily to the use of solar radiation for practical ends. However, all renewable energies, other than geothermal and tidal, derive their energy from the sun. Solar technologies are broadly characterized as either passive or active depending on the way they capture, convert and distribute sunlight. Active solar techniques use photovoltaic panels, pumps, and fans to convert sunlight into useful outputs.

    pdf0p nhacchovina 23-03-2013 18 3   Download

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