... from the solar radiation, the tank wall heats a thin vertical layer of water along the tank wall Part of this heat is then transferred by diffusion towards the core of the tank The water of the ... August and the theoretical results of [1] in June Figure 10 The time variation of solar radiation and stored energy of the present experimental study in August and the theoretical results of [1] ... investigation on the thermal performance of a 500-liter integrated collector storage system in the shape of a prism with a right angle A grid of 45 thermocouples was assembled inside the storage tank
Ngày tải lên: 05/09/2013, 15:28
... submitted to the Faculty of the Graduate School of the University of Colorado at Boulder in partial fulfillment of the requirement for the degree of Doctor of Philosophy College of Business and ... provides an overview of the research question and guidance for the rest of the chapters The second chapter reviews the relevant literature For instance, the importance of people and their knowledge ... the Investment and Allocation of Human Capital Affects the Performance of High Technology Initial Public Offering Firms Dissertation directed by Professor Joseph G Rosse This study explored the
Ngày tải lên: 30/03/2014, 01:20
Báo cáo hóa học: " Impact of the environment and the topology on the performance of hierarchical body area networks" ppt
... the impact of these parameters is not the focus of the this study, the interested reader is referred to the existing literature [27-29] for further details The principal contributions of this article ... where, in the last passage, we have used the fact that the RVs {Λi, Λj,Penv, Xi} are independent The term in the third line of the expression at the right-hand side of (13) can be further expressed ... spe-cific to BANs This article addresses the development of a specific fra-mework for the accurate evaluation of the impact of the results are derived by means of the link throughput analy-sis, this
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Effect of triplet multiple quantum well structures on the performance of blue phosphorescent organic light emitting diodes" potx
... PHOLEDs depends on the properties of the organic material in the devices [3, 4] In particular, the energy level of the charge transport, host, and emitter materials influences the light-emitting ... voltage characteristics) of devices A, B, C, and D The dotted circle on the graph shows reduction in the turn-on voltage from 3.5 V of the reference device (device A) to 2.5 V of the MQW structure ... characteristics, and the inset of Figure 3 shows current density versus voltage characteristics of devices A, B, C, and D The dotted circle on the graph of Figure 3 shows reduction in the turn-on voltage
Ngày tải lên: 20/06/2014, 23:20
báo cáo hóa học: " TCP NCE: A unified solution for non-congestion events to improve the performance of TCP over wireless networks" docx
... the random losses from conges-tion losses by adopting the mechanism of TCP Vegas [13] to estimate the size of the backlogged packets (N) in the buffer of the bottleneck link The calculation ofN ... throughout the duration of the connection to estimate the queue length (l) of the link, and then estimates the congestion status The cal-culation of l is as shown below, where RTT is the measured ... reducing the size of cwnd On the other hand, if the three dupacks is caused by random loss, the sender has to retransmit the packet without reducing the size of cwnd Below, we discuss the main
Ngày tải lên: 21/06/2014, 02:20
Báo cáo hóa học: " Research Article Impact of LQI-Based Routing Metrics on the Performance of a One-to-One Routing Protocol for IEEE 802.15.4 Multihop Networks" docx
... function of the LQI of the link. The link cost is an estimate of the number of transmission attempts required for successful frame delivery in a link The path cost is the sum of the link costs of the ... considers the quality of the worst link of a path It does not explicitly take into account the other characteristics of the path, such as the hop count or the LQI of the rest of the links 4.9 PATH-DR ... used in many technologies The cost of a path is the sum of the ETX values of the links of the path Hence, the ETX metric aims to select the path with the smallest number of total link layer transmission
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: " Research Article A Simulation Study: The Impact of Random and Realistic Mobility Models on the Performance of Bypass-AODV in Ad Hoc Wireless Networks" pdf
... on the length of the TCP connection in terms of number of hops for RPGM because of the strict movements of nodes On the other hand, for FRW and MAN, the higher the node speed, the higher the ... shows the values of all parameters used in the simulation The following metrics are computed to evaluate the impact of each mobility model on the performance of the Bypass-AODV as well as the original ... of introducing the new protocol (2) The goodput of the TCP is the number of sequenced bits that a TCP receiver receives per unit of time This measure will show the effectiveness of the routing protocol
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: " Research Article On the Performance of Kernel Methods for Skin Color Segmentation" pot
... captures most of the data points, and −1 in the other half region The criterion followed therein consists of first mapping the data into F, and then separating the mapped points from the origin ... corresponding to the constrains The KKT conditions allow us to obtain the sphere center in the feature space, a=l i =1α i ϕ(x i), and then, the distance of the image of a given point x to the center ... is the number of support vectors (α i > 0) and l is the number of training samples The tuning set for adjusting the decision threshold consisted of the skin samples and the same amount of
Ngày tải lên: 21/06/2014, 20:20
báo cáo hóa học:" Research Article Improving the Performance of Bus Platforms by Means of Segmentation and Optimized Resource Allocation" ppt
... the profile of the accesses between the hardware units, on the organization of the segments, and on the assignment of the units to the segments The idea in the present paper is to organize the ... connectivity of the respective segment to the rest of the platform A balance between parallelism and complexity of the system is therefore to be found The success of an SB implementation depends on the ... one of the other segments, and (3) to the other one The data to be transferred is generated by a counter associated with each of the masters For a model of this system, see the upper part of Figure
Ngày tải lên: 21/06/2014, 20:20
Báo cáo nghiên cứu nông nghiệp " Improving the performance of the fruit industry in Tien Giang and Tra Vinh provinces " ppt
... in the project, through the national coverage given to the formation of the cooperatives and their marketing ventures The direct involvement of farmers’ group has been one of the strengths of the ... demand The key outcomes for the project lie in the formation of four functioning farmers associations; the training of trainers and the delivery of training at village level; the improvement of farm ... 'Thinking of Asia' program i) Performance indicators will be the number of SOFRI, Cantho University, provincial staff trained in the 'train the trainers' workshops; the number of participants in the
Ngày tải lên: 22/06/2014, 13:20
Báo cáo hóa học: " A Proxy Architecture to Enhance the Performance of WAP 2.0 by Data Compression" ppt
... min-imize the volume of data sent over the air, content coding of the HTTP message body may be employed by the HTTP client in the WAP terminal, and either at the HTTP server or in the WAP Proxy ... bytes The IP packets captured from the live traffic by the node are first fragmented at link layer (LL) and then transmitted to the other node The received fragments are then defragmented in the ... compression is used as the basis for comparison purposes All other config-urations are evaluated by comparing the ATDiffs, which are the WATs of other configurations minus the WAT of uncom-pressed WAP
Ngày tải lên: 23/06/2014, 00:20
Effect of Na2SO4 additive in positive electrodes on the performance of sealed lead-acid cells for electric scooter applications ppt
... output of ES batteries will increase an ES’s range Generally, the higher the energy density, the lower battery the application costs The battery cost is critical to the total ES cost The battery ... aimed to determine the effects of the different amounts of Na SO additive on the perfor-2 4 mance of the positive electrode at higher curing tures ) 858C Various amounts of Na SO2 4 additive, ... cell testing in all of the cell groups The cell capacity data shown in Table 2 are based on initial cell capacity The table includes the values of the capacity loss rate and the average delivered
Ngày tải lên: 05/07/2014, 21:20
Influence of phenolic group content in lignin expanders on the performance of negative lead–acid battery plates pdf
... function of the number of weeks. Fig. 5 shows the dependencies of the number of week-cycles (giving the cycle life of the battery) on the content of phenolic groups in the lignin for both types of ... evolved on the negative plate [1]. Hence, the chemical stability of the expander is important for the cycle life of the battery. In a previous paper of ours, we studied the effect of the functional ... measured at the end of each week-cycle versus the number of week-cycles. Fig. 7 shows the dependencies of the U 30 00 voltage during the CCA test at the 10th week-cycle as a function of the phenolic
Ngày tải lên: 05/07/2014, 21:20
evaluating the performance of post-installed mechanical anchors in concrete
... simplify the detection of concrete cracking The distance to the edge of the bearing plate from the center-line of the corresponding anchor shall be three times the di-ameter d o of the anchor ... expansion For each anchor, measure the depth of the plug from the upper end of the anchor Calculate the average depth of the plug for the set anchors and shorten the setting tool to give this setting ... specified for the given test Initiate the crack and install theanchor according to Section 6.2, so that the axis of the anchorlies approximately in the plane of the crack Install the instru-mentation
Ngày tải lên: 24/10/2014, 21:58
slike bài giảng quản trị ngân hàng chương 10measuring and evaluating the performance of banks and their principal competitors
... interested in the banks’ level of profitability and exposure to risk? 2 What are the principal components of ROE, and what does each of the these components measure? 3 Suppose a bank has an ROA of 0.80% ... changes 6-45 Trang 46Capital riskProbability of the value of the bank’s assets declining below the level of its total liabilities The probability of the bank’s long run survival 6-46 Trang 47Capital ... deviation or variance of net income 3. Standard deviation or variance of ROE & ROA The higher σ and σ2, the greater the overall risk Trang 27Credit riskThe probability that some of the financial
Ngày tải lên: 31/10/2014, 10:03
synthesis of carbon nanotubes and polymers to increase the performance of polymer blends
... Anderson Rutledge Submitted to the Faculty of the College of Arts and Sciences of American University in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy In Chemistry ... reported the observation of carbon nanotubes it was of the MWNT type The discovery of SWNTs followed less than two years later The diameter of a carbon nanotube is of nanometer size and length of micrometer ... interlayer interactions The total energy of the nanotube is increased by the strain energy related to the way the nanotube is curved As the diameter of the nanotube decreases the strain energy increases
Ngày tải lên: 14/11/2014, 12:32
Impacts of logistics management on the performance of vantage logistics corporation
... (WTO), the North American Free Trade Agreement (NAFTA) There is also the development of other trading blocks like the European Union (EU), the Association of South East Asian Nations (ASEAN), the ... LOGISTICS Up till the 1970's the focus of the producer was to get the product to the market This was first done through “unimodal transport” The development of containerization in the seventies and ... provided In general, they are based on published tariffs, which reflect the local market conditions, the quality of the service, and the management capacity of the service provider These considerations
Ngày tải lên: 24/11/2014, 00:35
Evaluating the performance of investments in public sector
... suggestions of objectives in evaluating the performance of public investments and the definition of performance mentioned by Pestieau (2009), in the present study the performance of public investments of ... the management yet Some people approach the performance of public investment in aspect of efficiency, some others approach the performance of public investment in aspect of effectiveness or the ... corporation and of the whole country In addition, HIFU is a pilot model of the public organization operating under the objective programs of the local The results from the evaluating performance of HIFU
Ngày tải lên: 26/05/2015, 08:45
the importantce and effect of csr reporting on the performance of vietnam companies
... interviewed the director and chief accountant of the company on the CSR of the company. The question is to play a close look at the financial situation of the company and the impact of CSR activities ... family business. Therefore, managers must understand the importance of reporting and the implementation of CSR with business operations of the company. And then, the following hypothesis is developed: ... view, the shareholders or stockholders are the owners of the company, and the firm only addresses the needs and wishes of its owners. However, stakeholder theory argues that there are other...
Ngày tải lên: 13/03/2014, 14:20
Effect of Fund Size on the Performance of Mutual Funds Evidence from Iran pdf
... purchasers of the fund’s units, in proportion to their investments, would be the owner of a part of the fund. In other words, each unit represents the investors’ ownership of the fund’s assets and the ... Along the lines of the previous researches, they reported the negative influence of fund size on manager performance. While digging deeper towards the origin of these diseconomies of scale, the ... study of their performances, this research used some of the measures including turnover, liquidity, size and diversification of portfolios. The results of the first hypothesis showed that the...
Ngày tải lên: 16/03/2014, 17:20
Bạn có muốn tìm thêm với từ khóa: