... be used to provide valuable information concerning: + the performance of the students as a group, + the performance of individual student, + the performance of each of the items comprising the ... rather than ‘form’) This attempts to obtain different profiles of a learner’s performance in the language The development and the use of language tests involve an understandingof the nature of communicative ... reading ability of Civil Engineering English 5.Design of the study The study is composed of three parts: *Part I is the presentation of basic information such as the rationale, the scope of the study,...
Ngày tải lên: 07/11/2012, 14:12
... Quantization 6.4 SelfOrganized Maps Conclusions and Further Research Performance of modern techniques for rating model design Introduction Credit risk forecasting is one of the leading topics ... considered as the benchmark for clever guessing, having a prior probability of 35.55% Fig.2: Histogram and Density plots of the Data Performance of modern techniques for rating model design The ... separable set Fig No.4 Performance Versus Learning Rate Performance of modern techniques for rating model design In this case, we used 0.001 learning rate and 20,000 maximum number of iterations The...
Ngày tải lên: 16/04/2013, 20:00
Radio Link Performance of Third Generation (3G) Technologies For Wireless Networks
... Receiver Performance 33 4.4.1 Background on the Research of EDGE Receiver Performance 33 4.4.2 EDGE Bit Error Rate (BER) Link Performance 34 4.4.2.1 EDGE Bit Error Rate (BER) Link Performance ... structure for CS-4 [Source: 3GP00a] The first step of the coding process is the inclusion of the BCS for error detection For CS-1 to CS-3 the second step consists of pre-coding the USF (except for ... (BLER) Link Performance in Interference Limited Environments 42 4.4.3 EDGE Block Error Rate (BLER) Link Performance 49 4.4.3.1 EDGE Block Error Rate (BLER) Link Performance in...
Ngày tải lên: 26/04/2013, 11:15
PERFORMANCE OF A COMBINED CONSTRUCTED WETLAND SYSTEM FOR TREATING VILLAGE SEWAGE IN LAKE DIANCHI VALLEY
... objective: (1) the long term performance of demonstration system treatment of village sewage (2) the performance of demonstration systems when suffering the impulse load of stormwater and its effect ... removal rate (%) 80.6 89.9 85.1 85.1 Note: the number of available sample is 80 Removal performance of constructed wetland system for storm runoff It entered into the rain season after June A storm ... resist the impulse load of stormwater and had a good capacity to reduce the large amounts of pollutants brought by the stormwater runoff in a short time Table Removal performance of the constructed...
Ngày tải lên: 05/09/2013, 08:40
A reliability data base for performance and predictive assessment of electric power systems
... the calculation of the LOLE is the unit FOR This is sometimes replaced by the DAFOR for large generating units which tends to give a pessimistic appraisal of the unit and therefore of the system ... state information and therefore it is possible to obtain transition rate data for any degree of complexity Reference (10) illustrates a direct procedure for obtaining the necessary information for ... to provide a centralized source of BES delivery point performance data at the national level which will allow utilities to compare their performance with that of other Canadian utilities The...
Ngày tải lên: 03/01/2014, 19:36
REINFORCED ASPHALT OVERLAYS FOR PAVEMENTS - UNIVERSITY OF NOTTINGHAM DEPARTMENT OF CIVIL ENGINEERING doc
... sought Accordingly, information describing the behaviour of reinforced pavements is summarised below, and information relating to the investigation of laboratory performance of reinforced asphalt is ... be answered before reinforced asphalt can be used with confidence in practice The main purpose of the literature review was therefore to further define the field performanceof reinforced asphalt, ... some contact with reinforcement in bituminous pavements b) Each of the `main' groups of reinforcement is used in Britain In general, limited knowledge exists of the performance of the c) treatments...
Ngày tải lên: 07/03/2014, 11:20
electrochemical performance of - fe2o3 nanorods as anode material for lithium - ion cells
... processes could remarkably improve the electrochemical performance of Fe2 O3 as an anode material The Nyquist plots of the ac impedance for the microcrystalline Fe2 O3 powders and the Fe2 O3 ... curves of the Fe2 O3 nanorod electrode are stable and well matched after the second cycle This enhancement of the reactivity of the Fe2 O3 nanorods Results and discussion Fig shows XRD patterns of ... particle shapes of the commercial microcrystalline Fe2 O3 are not regular The sizes of the commercial Fe2 O3 particles are in range of 150–300 nm It is clear that the size distribution of the nanorods...
Ngày tải lên: 19/03/2014, 16:48
Rural and Micro Finance Regulation in Ghana: Implications for Development and Performance of the Industry ppt
... Ghana: Implications for Development and Performance of the Industry By William F Steel & David O Andah June 2003 Foreword his country study is one of three being published as part of research on the ... (especially NGOs) for self-regulation and by donors, BOG and MOF to monitor the growth and performance of the sector GHAMFIN also has a simpler survey instrument that would give a basic profile of responding ... be a flexible means of regularizing three types of MFIs through: • transformation of NGOs into licensed financial intermediaries; • formalization of actual or potential informal money- lending...
Ngày tải lên: 22/03/2014, 21:20
Báo cáo khoa học: "Improving the Performance of the Random Walk Model for Answering Complex Questions" pptx
... graph-based random walk model of ranking sentences would perform better if we could encode the syntactic and semantic information instead of just the bag of word (i.e TF*IDF) information in calculating ... Lin 2004 ROUGE: A Package for Automatic Evaluation of Summaries In Proceedings of Workshop on Text Summarization Branches Out, PostConference Workshop of Association for Computational Linguistics, ... defined in Section For instance, although the two STs of Figure share most of the subtrees rooted in the ST node, the kernel defined above computes no match The critical aspect of the TK function...
Ngày tải lên: 23/03/2014, 17:20
SYSTEMATIC METHOD FOR ANALYSIS OF PERFORMANCE LOSS WHEN USING SIMPLIFIED MPC FORMULATIONS pptx
... the best way of simplification for our example of plant is found, which turns out to be delta input blocking Keywords: analysis of MPC, simplified MPC formulations, analysis of MPC performance ABSTRAKT ... is the trade-off between speed and performance of MPC using reduced model or some other simplify method, because with increasing reduction of degrees of freedom, the control performance is decreasing ... Model of the Distillation Column 40 3.1.1 Disturbance Model 42 3.2 Formulation of the MPC Problems 43 3.2.1 Formulation of Problem 43 3.2.2 Formulation of Problem...
Ngày tải lên: 31/03/2014, 22:20
SUPERVISORY, INSTRUCTIONAL SKILLS AND PROFESSIONAL PERFORMANCE OF TEACHERS IN VOCATIONAL COLLEGES IN NGHE AN PROVINCE: BASIS FOR DEVELOPING AN ENHANCEMENT PROGRAM
... Vocational College of Trade and Tourism 82 11 Table 11 The Professional Performance of Teachers of Viet Duc Vocational College 84 12 Table 12 The Professional Performance of Teachers of Viet Han Vocational ... Socialist Republic of Vietnam (NAME OF PROFESSOR) (NAME OF PROFESSOR) Member Member (NAME OF PROFESSOR) Chairman Accepted in partial fulfillment of the requirements for the degree Doctor of Philosophy ... Skills of Teachers as to Classroom Management Skills 77 Table The Level of the Instructional Skills of Teachers as to Assessment Skills 79 10 Table 10 The Professional Performance of Teachers of...
Ngày tải lên: 13/05/2014, 14:46
Báo cáo toán học: " Electrochemical performance of NixCo1-xMoO4 (0 [less than or equal to] x [less than or equal to] 1) nanowire anodes for lithium-ion batteries" pptx
... capacity of NiMoO4 and Ni0.75Co0.25MoO4 nanowire electrodes was larger (≈520 mA h/g after 20 cycles at a rate of 196 mA/g) than that of the other nanowires This enhanced electrochemical performance of ... Electrochemical performance of NixCo1−xMoO4 (0 ≤ x ≤ 1) nanowire anodes for lithium-ion batteries Kyung-Soo Park1, Seung-Deok Seo1, Hyun-Woo Shim1, and Dong-Wan Kim*1 Department of Materials Science ... capacity of 372 mA h/g), initial loss of capacity, and structural deformation [1, 2], one of the current areas of interest in lithium-ion battery research is the search for new anode candidates that...
Ngày tải lên: 20/06/2014, 21:20
báo cáo hóa học: " TCP NCE: A unified solution for non-congestion events to improve the performance of TCP over wireless networks" docx
... Fairness of TCP NCE Fairness is a measure of the relative throughput performance of a set of TCP flows of the same type To investigate the fairness performance, 10 simultaneous TCP flows of the ... retransmission by using the information from the network Accuracy of TCP NCE Accuracy is another performance metric we used to evaluate the performance of TCP NCE Because accuracy is one of the most important ... http://jwcn.eurasipjournals.com/content/2011/1/23 Experimental setup for end-to-end throughput performance We have used three different network topologies for evaluating the performance of TCP NCE throughput in order to show...
Ngày tải lên: 21/06/2014, 02:20
báo cáo hóa học:" Research Article A Formal Model for Performance and Energy Evaluation of Embedded Systems" pot
... applicability for large codes This work presents a discrete event modeling strategy, based on Coloured Petri Net formalism (CPN) [6], for performance and energy consumption evaluation of embedded ... presents a novel method for specifying and evaluating the performance and energy consumption of embedded systems considering different configurations for workload and the platform components, such ... is applied to model a real platform, namely, NXP LPC2106, and a theoretical multiprocessor platform The high level of abstraction of the proposed models allows for fast but accurate estimates...
Ngày tải lên: 21/06/2014, 11:20
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
... metrics enable the calculation of the cost of a path, based on the LQI values of all links Therefore, we chose to evaluate the performance of these LQI-based routing metrics for NST-AODV Note that the ... additional transmission of packets for LDR estimation We evaluate the performance of LETX for NST-AODV in this paper 4.11 Summary of Link Quality Routing Metrics for Low-Power Wireless Networks ... 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...
Ngày tải lên: 21/06/2014, 11:20
Báo cáo hóa học: "Research Article Statistical Real-time Model for Performance Prediction of Ship Detection from Microsatellite Electro-Optical Imagers" docx
... scope of this paper.) The simplest model for pw,b thus considers a uniform pdf for the emissivity leading to a uniform distribution of Rb However, this is not w realistic since having microfacets ... Model for Signal Sbl We propose a model for the pdf of Sbl for the three classes of pixels Since the method is similar for these three classes, we only consider a mixed pixel, that is, Sbl Sbl for ... enhances detection performance Probability of detection In this section, we illustrate the use of the presented simulator to assess sensor performance using ROC curves The set of simulations is...
Ngày tải lên: 21/06/2014, 19:20
Báo cáo hóa học: " Research Article On the Performance of Kernel Methods for Skin Color Segmentation" pot
... have been used for skin segmentation However, and to our best knowledge, few exhaustive performance comparison have been made to date for supporting a significant overperformance of kernel methods ... GMM, performance for CdB is better than for UdB in the three color spaces, but the network complexity, measured as the optimal number of hidden neurons, is higher in CbCr and rg for CdB than for ... Values of HTER (%) and complexity for SVND-H (nu = 0.01, σ = 0.05 for CdB; nu = 0.08, σ = 0.2 for UdB), SVND-S (C = 0.5, σ = 0.05 for CdB; C = 0.05, σ = 0.1 for UdB) and SVM (C = 46.4, σ = 1.5 for...
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: " Research Article New Technique for Improving Performance of LDPC Codes in the Presence of Trapping S" doc
... bit for message initiating and one word of size d(ci ) for message forwarding Fortunately, the communication links needed to forward neutralization messages between check and variable nodes of ... 12: Performance results for MacKay(204,102) LDPC code Table 3: Results after the learning phase of HE(1024,512) LDPC code best performance is obtained using the proposed algorithm on top of the ... neutralization This observation motivates the need for developing a technique for enhancing decoder performance due to trapping sets of constant error patterns type For trapping sets that cause constant error...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " Research Article Capacity Performance of Adaptive Receive Antenna Subarray Formation for MIMO Systems" pdf
... system for SS-ASF when the SNR is at 15 dB Clearly, SS-ASF outperforms Gorokhov et al algorithm for antenna selection [4], which is quasi optimal in terms of capacity performance Moreover, the performance ... results that demonstrate the capacity performance of receive ASF technique, the tightness of the ergodic capacity bounds derived in Section 3, and the performance of the proposed algorithm 20 Ergodic ... capacity for ASF 18 Frobenius-norm-based algorithm In this paragraph we demonstrate the capacity performance of the Frobenius-norm-based algorithm for various schemes of receive ASF in terms of outage...
Ngày tải lên: 22/06/2014, 06:20