... fragments and a single unused fragment This remaining fragment can be allocated to another file as needed Space is allocated to a file when a program does a write system call Each time data is written ... the allocated space The problem with expanding a file one fragment at a a time is that data may be copied many times as a fragmented block expands to a full block Fragment reallocation can be minimized ... and the additions and changes that have been made to the facilities that are available to programmers The original UNIX system that runs on the PDP-11† has simple and elegant file system facilities...
Ngày tải lên: 12/09/2012, 14:16
... Geographic Information system (GIS) is any system integrates hardware, software, and data for capturing, managing, analyzing, and displaying all forms of geographically referenced information ... 2.3.2.3 Data access tier It consists of the database server that contains all logic data of application Separating logic data from application into it will make program scalable and higher performance ... operating system - Easy to manage, update database: Database is located at dedicated server that managers can maintain and update it easily - Quick delivery: web-based model make it portable to...
Ngày tải lên: 27/10/2012, 16:40
A NEW CLASSIFICATION SYSTEM FOR URBAN STORMWATER POLLUTANT LOADING: A CASE STUDY IN THE SANTA MONICA BAY AREA
... provides practical information with reasonable accuracy, which can be used for environmental planning and management Open land use corresponds to low pollutant loads for all water quality parameters ... with official land used data obtained from SCAG land use data The pollutant loading maps of all water quality parameters show that the low pollutant emitting areas correspond to open land use due ... loading area For the other classes, each water quality parameter exhibited different results As shown above, COD and TP have only transportation land use as high pollutant loading areas But TKN adds...
Ngày tải lên: 05/09/2013, 09:08
PLC communications in a process control system
... COMMUNICATIONS IN A PROCESS CONTROL SYSTEM by GR MacKenzie, AEG Communication has become a major part of any process control automation system Today PLC communication is as much for data acquisition ... performance, and is generally cheaper The maximum transmission time for any network configuration can be calculated A classic rule for any PLC application is that repeatability is more important ... as if either user fails, no communication can take place anyway In a bus configuration, however, this is not always the case For installations where the 'master' device is always in control and...
Ngày tải lên: 25/12/2013, 08:50
Tài liệu A Knowledge Management System for ERP Implementation pdf
... cooperative working platform, knowledge transfer platform, individual RESEARCH PAPER KM platform, organizational KM platform and consulting platform The interplay of these five platforms can speed ... Lastly, a KM system is proposed that consists of cooperative working platform, consulting platform, individual KM platform, organizational KM platform, and knowledge transfer platform This system ... (2006) Yuan Li et al Syst Res RESEARCH PAPER Cooperative Working Platform Individual Organizational KM Consulting Platform Platform KM Platform Knowledge Transfer Platform Figure The platform structure...
Ngày tải lên: 16/01/2014, 16:33
Tài liệu PLC Communications in a Process Control System docx
... performance, and is generally cheaper The maximum transmission time for any network configuration can be calculated A classic rule for any PLC application is that repeatability is more important ... for PLC diagnostics and programming remotely, but seldom for data acquisition because of the slow speed, maximum generally of 2400 baud Broadband signalling is nearly always used in wide area ... phase modulation: there are two different types of phase modulation: a) a phase shift of 180( in the carrier occurs each time a binary zero is transmitted No phase change takes place for a binary...
Ngày tải lên: 25/01/2014, 05:20
Tài liệu Báo cáo khoa học: "GEMINI: A NATURAL LANGUAGE SYSTEM FOR SPOKEN-LANGUAGE UNDERSTANDING*" doc
... is that when they are formulated loosely, as in the previous paragraph, they appear to conflict In particular, in ( 2a) , Right Association seems to call for the parse that makes for Mary a modifier ... Systems, ed P Jacobs, Lawrence Erlbaum Associates, Hillsdale, NJ, pp 13-33 Kameyama, M (1992) "The Syntax and Semantics of the Japanese Language Engine", forthcoming In Mazuka, R., and N Nagai, ... the fact that every lexical item has a semantics associated with it Table contains average edge counts and parse timing statistics for the 5875-utterance training set Many systems (Carbonell and...
Ngày tải lên: 20/02/2014, 21:20
An Audit Quality Control System: Essential Elements pdf
... Efficiency GAO/OP-4.1.6 Chapter Overview The Need for an Appropriate Quality System Government Auditing Standards require each organization to have an appropriate quality system in place The quality assurance ... Government Auditing Standards quality control standard, the fourth general standard, states: “Audit organizations conducting government audits should have an appropriate quality control system in place ... Accountants (Apr 1991) AFMD-12.19.4 The Chief Financial Officers Act: A Mandate for Federal Financial Management Reform (Sept 1991) AFMD-12.19. 5A Financial Audit Manual (June 1992) OGC-15.1.12 Guidance...
Ngày tải lên: 16/03/2014, 00:20
Báo cáo khoa học: Construction of a novel detection system for protein–protein interactions using yeast G-protein signaling pdf
... AAACGCCTTCGCCCAAAGTTTAAAAGATGA TCATCTTTTAAACTTTGGGCGAAGGCGTTT TTTTCTCGAGAAAGATGCCGATTTGGGCGC GGGGCTCGAGGTTTTATATTTGTTGTAAAA ATATTATATATATATATAGGGTCGTATATA AAATTATAGAAAGCAGTAGA TAAAACAATG CTTCGAAGAATATACTAAAAAATGAGCAGG ... GCCCGTCGACATATTATATATATATATAGG CCCGCTCGAGTCTTAGAATTATTGAGAACG GCCCGGATCCTGATAGTAATAGAATCCAAA CCCCGAATTCAAATTATAGAAAGCAGTAGA AAGGCTCGAGAGATCTGTTTAGCTTGCCTC AAAAGTCGACGAGCTCGTTTTCGACACTGG TTTTGTCGACATGGCGCAACACGATGAAGC ... TTTTGTCGACATGGCGCAACACGATGAAGC CGTAGACAAC GGGGGGATCCTTACATAAGCGTACAACAAA CACTATTTGATTTCGGCGCCTGAGCATCA TTTAGCTTTTT ATCCAAAGTTTAGCCGATGACCCAAGCCAA TTGGCTTGGGTCATCGGCTAAACTTTGGAT AAACGCCTTCGCCCAAAGTTTAAAAGATGA...
Ngày tải lên: 16/03/2014, 01:20
Báo cáo khoa học: Identification of sodium salicylate as an hsp inducer using a simple screening system for stress response modulators in mammalian cells pptx
... Hatayama, T (1999) Molecular cloning, expression and localization of human 105 kDa heat shock protein, Hsp105 Biochim Biophys Acta 1444, 138–142 16 Yasuda, K., Nakai, A. , Hatayama, T & Nagata, ... such as Hsp10 5a and Hsp70 in various mammalian cells Enhancement of thermoresistance of cells by SA Upon exposure to a sublethal heat treatment, mammalian cells acquire transient resistance to a ... neutral red, and fixed with 1% formaldehyde containing 1% CaCl2 for The dye incorporated into viable cells was extracted with 50% ethanol containing 1% acetic acid, and absorbance at 540 nm was measured...
Ngày tải lên: 17/03/2014, 10:20
Lore: A Database Management System for Semistructured Data ppt
... standard operators such as Scan and Join, some take an original avor For example, Scan may take as argument a general path expression, and therefore may entail complex searches in the database ... unique path expressions As an example, Figure 10 is a screen snapshot of the Java presentation of a DataGuide This DataGuide summarizes an existing database for Stanford's Database Group, similar ... and system implementation we are grateful to alphabetically Kevin Haas, Matt Jacobsen, Tirthankar Lahiri, Qingshan Luo, Svetlozar Nestorov, Anand Rajaraman, Hugo Rivero, Michael Rys, and Takeshi...
Ngày tải lên: 23/03/2014, 12:20
Báo cáo khoa học: "Joint Learning of a Dual SMT System for Paraphrase Generation" pptx
... evaluations of paraphrase quality and rate tend to be incompatible To address the above problems, we propose a metric for tuning parameters and evaluating the quality of each candidate paraphrase ... criteria in paraphrase generation: adequacy measuring the semantic equivalency and paraphrase rate measuring the surface dissimilarity As they are incompatible (Zhao and Wang, 2010), the question arises ... Dolan 2011 Collecting highly parallel data for paraphrase evaluation In ACL, pages 190–200 David Chiang 2007 Hierarchical phrase-based translation Computational Linguistics, 33(2):201–228 Pablo...
Ngày tải lên: 23/03/2014, 14:20
Báo cáo khoa học: "A Subcategorization Acquisition System for French Verbs" doc
... on Language Resources and Evaluation, volume IV, pages 1351–1357, Las Palmas de Gran Canaria, Spain Mihai Surdeanu, Sanda M Harabagiu, John Williams, and Paul Aarseth 2003 Using Predicate-Argument ... lexicon that contains partial subcategorization information (Sagot et al., 2006), while Dicovalence is a manually built valency dictionnary based on the pronominal approach (van den Eynde and Blanche-Benveniste, ... For more details of the lexicon and its format, see (Messiant et al., 2008) 3.3 Gold Standard Direct evaluation of subcategorization acquisition performance against a gold standard based on a...
Ngày tải lên: 31/03/2014, 00:20
báo cáo hóa học: "Introducing a feedback training system for guided home rehabilitation" potx
... measured force values For all parameters, the mean values as well as the variances were calculated For evaluating the differences in the parameters among different groups, analysis of variance (double-sided ... suitable for home rehabilitation training This is true for many other approaches as well [32-36] Page of 11 We therefore aimed to develop an easy to use, cheap and mobile training system that allows ... location of greatest stress a resistance strain gauge from Vishay [41] is applied to measure the bending of the material as a consequence of an applied force Strain gauges change their electrical...
Ngày tải lên: 19/06/2014, 08:20
Báo cáo hóa học: "Occupational medical prophylaxis for the musculoskeletal system: A function-oriented system for physical examination of the locomotor system in occupational medicine (fokus(C))" potx
... years of practical experience and the limited time allowed for occupational medical examinations speak for a systematic subdivision of the physical examination into a screening phase and, based on ... into account the fact that occupational medical prophylaxis does not aim primarily at producing a therapeutic indication but at prevention From the large number of available validated tests for ... screening in this form have revealed no abnormalities, no functional disorders of relevance for occupational medicine are present • the forearm in pronation and supination, • ulnar and radial duction...
Ngày tải lên: 20/06/2014, 00:20
Báo cáo hóa học: " Research Article CARNIVORE: A Disruption-Tolerant System for Studying Wildlife" docx
... receive data A single MAC layer task parses frames rapidly and updates the state variables for each task A neighbor table is maintained at each CSN that stores the neighbor ID and a ranking metric ... voltage Lithium batteries at 3.6 V are available in D, C, AA, and other sizes, and so this design will be able to accommodate a variety of form factors and sizes of batteries for small and large ... the data transfer task All nodes that sent nominations and received acceptances become senders in the data transfer task SRNs always have a metric of and will therefore always win an election and...
Ngày tải lên: 21/06/2014, 11:20
báo cáo hóa học:" Research Article A New Denoising System for SONAR Images" docx
... bishrink filter with global estimation of local variance, for the forth iteration it acts as a local adaptive Wiener filter and for the fifth iteration (the last one) it acts as a hard thresholding filter, ... International Conference on Acoustics, Speech and Signal Processing (ICASSP ’01), Salt Lake City, Utah, USA, May 2001 [23] S Moga and A Isar, “SONAR image denoising using a Bayesian approach in the wavelet ... not make a local estimation, was considered for the treatment of the Lena image in Table The second implementation makes a local estimation and has better performance It was considered for the...
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: " A Multiple-Antenna System for ISM-Band Transmission" potx
... other approaches like fastICA [19] and SSARS [20] A Multiple-Antenna System for ISM-Band Transmission −1 0 In-phase −1 −1 −1 −1 Quadrature Quadrature 1 Quadrature Quadrature 1417 (a) In-phase ... In-phase Quadrature Quadrature Quadrature Quadrature 1 In-phase (b) −1 In-phase −1 −1 −1 −1 In-phase 1 Quadrature Quadrature The separation leads to data streams which are processed in the classical ... techniques There are two principal approaches to get a performance gain from an antenna array One approach uses the known geometric constellation of the antennas for beamforming The other approach is independent...
Ngày tải lên: 23/06/2014, 01:20
Báo cáo sinh học: "he water flea Daphnia - a ‘new’ model system for ecology and evolution" potx
... comparative analysis of neural characters in higher crustaceans (malacostracans) and insects For example, in both insects and malacostracans, stem-cell-like neuroblasts have been detected that ... of Daphnia The study of parasites (viruses, bacteria and multicellular parasites) has also gained momentum as a result of their influence on Daphnia ecology and evolution [3] Parasites can directly ... populations Genetic variation has been reported in Daphnia for a vast number of traits such as size, aging, Page of behavior (for example, vertical migration, fish-escape behavior), morphology (for...
Ngày tải lên: 06/08/2014, 19:21