... CONCLUSION AND RECOMMENDATIONS 51 5.1 Social Network Service Development and Future Forecasf -‹- 51 5.2 SWOT Analysis and Its Applying for SNS -creerrererrrrrre 51 5.3 Recommendations and Solutions ... for my strategy, and vice versa “ Competition in this industry: The more competitors in market, the more competitive the market is Thus, many competitors will provide products or services as Ill ... Ho Chi Minh City is more and more important day by day, and certainly the standard of satisfaction is higher and higher also 1.1.2 Practical Problems Besides benefits and positive impacts that
Ngày tải lên: 09/11/2017, 21:41
... Trang 33 Solar Thermal Systems: Components and Applications – Introduction In addition to the thousands of ways in which the sun’s energy has been used by both nature and man through time, to grow ... environmentally safe and sound and cost-effective energy systems, particularly new and renewable ones, through less polluting and more efficient energy production, transmission, distribution, and use One ... conditioning and refrigerating equipment as refrigerants, and NOx emissions which are produced by the fossil fuel and biomass combustion processes, the natural denitrification, and nitrogen fertilizers
Ngày tải lên: 30/12/2017, 17:16
Volume 3 solar thermal systems components and applications 3 02 – the solar resource
... the Earth system is the algebraic sum of the incoming and outgoing components of radiation These components are balanced over long-time periods and over the Earth as whole If they were not, the ... contain information about the direct, diffuse, and global irradiance components In addition, many models try to compute the direct and/or diffuse component from global irradiance, which is used ... 1000 nm With α and β known, the AOD380 and AOD500 (the AOD at 380 and 500 nm) required by the model can be calculated by the expressions β(0.38−α) and β(0.5−α), respectively The model computes clear-sky
Ngày tải lên: 30/12/2017, 17:18
Volume 3 solar thermal systems components and applications 3 03 – history of solar energy
... the center of the world, and the source of heat, light, and life [5] In the ancient manuscript of ‘Brhad-Devata’, it is cited [3] Of what is and has been and is to be, and what moves or remains ... philosopher and scientist Aristotle (384–322 BC) who conceived the hydrologic water cycle [6, 7]: Now the Sun moving, as it does, sets up processes of change and becoming and decay and by its ... performed in Israel, and the first solar pond was proposed and constructed by Tabor [28] and Tabor and Matz [29] Solar ponds were also been studied in Chile, the USSR, India, and the United States
Ngày tải lên: 30/12/2017, 17:18
Volume 3 solar thermal systems components and applications 3 04 – low temperature stationary collectors
... long-wave radiation and reflects back the rest Glass has very good mechanical and physical properties, and withstands perfectly time aging under ambient conditions Some drawbacks of common glass are ... temperatures are between 50 and 80 °C Recently, the cost of optimized honeycomb covers made of Mylar and Lexan runs into $9 and $7 m−2, respectively [6, 7] 3.04.1.6 Back and Side Insulation for FPCs ... dimensionally stable, strong, and completely sealed permanently against moisture intrusion As a Trang 12general rule, the joints and seams should be minimized and completely sealed Aluminum should
Ngày tải lên: 30/12/2017, 17:19
Volume 3 solar thermal systems components and applications 3 05 – low concentration ratio solar collectors
... acceptance half-angle, and this angle is used for the calculation of the maximum concentration If both the sun and the receiver are considered to be black bodies at temperatures Ts and Tr, respectively, ... radiated from the sun and received by the concentrator is [1]: A black body receiver, which is considered a perfect radiator and absorber, radiates energy equal to ArT4 r and a fraction of this ... flat-plate collectors was initially suggested by Tabor [2] A comprehensive analysis and a model of such a system are presented by Garg and Hrishikesan [3] Sun rays Flat diffuse Flat-plate collector
Ngày tải lên: 30/12/2017, 17:20
Volume 3 solar thermal systems components and applications 3 06 – high concentration solar collectors
... on the one hand, by simplification of the design due to less different profiles and parts, compact transportation, and efficient manufacture and assembly concept and, on the other hand, by weight ... was constructed and tested at PSA facilities in 2005 In 2007, a complete commercial 600 m loop was constructed, tested, and later integrated into Andasol 1 solar field The first commercial solar ... quality of optical components of solar concentrators The analyzed surface data can be used to estimate slope errors and undertake ray-tracing studies to compute intercept factors and access concentrator
Ngày tải lên: 30/12/2017, 17:20
Volume 3 solar thermal systems components and applications 3 07 – thermal energy storage
... demand In this case, the storage system can match different times of supply and demand; in many cases, the storage system can match different supply and demand power, and even supply and demand ... the supply and/or the demand Thus, the typical goals of storage integration are temperature regulation and power matching The basic goals of the storage are to match supply and demand regarding ... conditions by means of complementary site investigations and measurements of loads and temperatures on the user’s side • Evaluation of results and modeling used for technical, legal, and environmental
Ngày tải lên: 30/12/2017, 17:21
Volume 3 solar thermal systems components and applications 3 08 – photovoltaic thermal solar collectors
... between 60% and 65%, and relevant contributions come from the additional components needed for heat recovery, reflection, and so on The glazed HRU impacts come from copper (pipes and heat exchanger), ... considerations and results on these systems Later, Brinkworth et al [25], Moshfegh and Sandberg [26], Sandberg and Moshfegh [27], Brinkworth [28, 29], and Brinkworth et al [30] present design and performance ... hospitals, and other buildings; to cover agricultural and industrial energy demand; and also to simultaneously provide electricity and heat in several other sectors In PV/T system applications,
Ngày tải lên: 30/12/2017, 17:22
Volume 3 solar thermal systems components and applications 3 10 – glazings and coatings
... aluminum frames The most components into interior and exterior pieces and use a less conductive material to join them Current technology with standard 3.10.4.7.2 Wood and wood composites The traditional ... direction, and speed, and they are very useful for long-term energetic predictions The solar irradiation consists of two components: (1) direct and (2) diffuse irradiation The direct irradiation component ... interior Alternatively, composite wood products, such as particle board and laminated strand lumber, in which wood particles and resins are compressed to form a strong composite material have
Ngày tải lên: 30/12/2017, 17:23
Volume 3 solar thermal systems components and applications 3 11 – modeling and simulation of passive and active solar thermal systems
... advanced modeling and simulation of active systems are presented Finally, it should be noted that the components and subsystems discussed in other chapters of this volume may be combined to create ... direct gain and indirect gain Four common types of passive Direct-gain systems have two essential components: near-equatorial facing windows that transmit incident solar radiation and thermal ... insulation, and the effect of the exterior heat transfer coefficients becomes less important Most researchers separate exterior heat losses into two components: convection to the exterior air and radiation
Ngày tải lên: 30/12/2017, 17:24
Provision, discovery and development of ubiquitous services and applications
... Discovery for Mobile Computing: Classifications, Considerations and Challenges” In Handbook of Mobile Systems Applications and Services (Editors: Anup Kumar and Bin Xie), CRC Press, Taylor and Francis ... realization of various computing paradigms such as pervasive computing, ubiquitous computing, ambient computing and context-aware computing”, [16] However, by taking these mobile services into the ... challenges and problems discussed in Section 1.3 and Section 1.4 In the following, we present platforms specifically designed for mobile services and compare them with LASPD The feasibility and performance...
Ngày tải lên: 10/09/2015, 08:36
Tài liệu Developing XML Web Services and Server Components with Microsoft Visual Basic .NET MCSD/MCAD/MCDBA Version 5.0 pptx
... The Component Services administrative tool enables you to configure and administer COM components and COM+ applications With Component Services, administrators can deploy and administer Component ... “TestKingCustomer” myCommand.Parameters.Add (“TestKingCustomer”, “ALFKI”) C myCommand.CommandText = “@CustomerID” myCommand.Parameters.Add (“TestKingCustomer”, “ALFKI”) D myCommand.CommandText = “TestKingCustomer” ... in IT testing and certification tools, www.testking .com -7- 070 - 310 A myCommand.CommandText = “TestKingCustomer, ALFKI” myCommand.Parameters.Add (“@CustomerID”) B myCommand.CommandText = “TestKingCustomer”...
Ngày tải lên: 10/12/2013, 14:16
cryptography and security services mechanisms and applications
... their communications will be sent and received as intended The basic principles of secure communications have not changed with technology and communication advances Today, communications companies ... reference that provides the language, knowledge, and tools to understand and implement security services, mechanisms, and applications in today’s secure communications networks This book could also ... and security services are discussed and reviewed The third section discusses how those crypto services and mechanisms are used in applications such as e-mail security, VPNs, IPsec, TLS, Web services, ...
Ngày tải lên: 03/07/2014, 21:09
Analyzing service quality via QFD and SERVQUAL applications in accommodation services and distance learning
... manufacture and service sectors are more fiercely competitive and global than ever Consumers are more demanding, competition is more global, fierce, ruthless, and technology is advancing and changing ... critical component characteristics; Process plan and quality control charts - identify critical product and process parameters and develop check points and controls for these parameters; and Operating ... VIA QFD AND SERVQUAL: APPLICATIONS IN ACCOMMODATION SERVICES AND DISTANCE LEARNING ZHANG YU (B ENG.) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF INDUSTRIAL AND SYSTEMS...
Ngày tải lên: 29/09/2015, 13:01
PV SYSTEMS, COMPONENTS DEVICES AND APPLICATIONS
... ARRAY PANEL MOUNTING STRUCTURE COMBINER BOX CHARGE CONTROLLER BATTERY BANK INVERTER AC AND DC DISCONNECTS MISCELLANEOUS COMPONENTS( Cables, connectors, conduit and brackets) LOADS A ... requirement These Are Normal Electrical Components Commonly Used For Electrical Wiring Connecting Cables Connectors Conduit and brackets The power consuming component Two types of loads (AC ... component configurations, and how the equipment is connected to other power sources Stand alone systems Grid interactive systems Hybrid systems GRID CONNECTED SYSTEMS STAND ALONE PV SYSTEMS...
Ngày tải lên: 27/01/2016, 16:15
Multi-Carrier Digital Communications - Theory and Applications of OFDM
... in the Appendix 2.2 DFT The key components of an OFDM system are the Inverse DFT in the transmitter and the DFT in the receiver These components must implement and, respectively These operations ... With Wireless Applications Sergio Benedetto and Ezio Biglieri Simulation of Communication Systems, 2nd Edition: Methodology, Modeling, and Techniques Michel C Jeruchim, Philip Balaban, and K Sam ... descriptions of three very important and diverse applications of OFDM that have been standardized and are now being deployed ADSL provides access to digital services at several Mb/s over the ordinary...
Ngày tải lên: 02/03/2013, 16:58
Data mining and medical knowledge management cases and applications
... Information and Knowledge and communication technologies These new technologies are speeding an exchange and use of data, information and knowledge and are eliminating geographical and time barriers ... supported by arguments, and the explanation of decisions and predictions should be mandatory for an effective deployment of DM models DM and KM are thus becoming of great interest and importance for ... networking and standardization Better information processing using computers strongly relies on computer science disciplines, e.g theory of computing, programming languages, parallel computing,...
Ngày tải lên: 16/08/2013, 16:24
Voice over IP Benefits and Applications
... details all the IP telephony components that are usually required in a scalable infrastructure Figure 6-7 Pre- and Post-Paid Internet Telephony Components These components include an H.323 gateway ... telephony, and unified communications Figure 6-3 shows the components and network design of a PTCC 99 Figure 6-3 Packet Telephony Call Center This connection to the legacy PBX is accomplished ... whether a combined voice and data network would provide the expected savings Acme's Convergence Plan and Goals It is important to understand where the customer's network stands today and where...
Ngày tải lên: 30/09/2013, 05:20
Reporting with Web Services and Mobile Devices.
... WITH WEB SERVICES AND MOBILE DEVICES //declare connection, command and other related objects SqlConnection conReport = new SqlConnection(cnString); SqlCommand cmdReport = new SqlCommand(); SqlDataReader ... reader and populate the dataset cmdReport.CommandType = CommandType.Text; cmdReport.Connection = conReport; cmdReport.CommandText = "Select TOP * FROM Dbo Itinerary"; //read data from command object ... creating an ASP NET web site Both the web site and the web service need IIS for the hosting However, when it comes to behavior, they differ: web sites serve HTML pages to the user, and web services...
Ngày tải lên: 05/10/2013, 08:48