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A Fast File System for UNIX
... blocks that a user may allocate. A separate quota can be set for each user on eachfile system. Resources are given both a hard and a soft limit. When a program exceeds a soft limit, a warn-ing ... data, and possibly a single fragmented block. If a file system block must be fragmented to obtain space for a small amount of data, the remaining fragments of the blockare made available for allocation ... 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 if the user programwrites a full block at a time,...
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The Duality of Memory and Communication in the Implementation of a Multiprocessor Operating System
... in nature to a data manager which fails to freedata, but is easier to detect and prevent.• Data manager changes data. A malicious data manager may change the value of its data on each cacherefresh. ... servers than its kernel.8When a user task requires greater access to cached data than the data manager has permitted (e.g., a write fault on a page made read-only by a pager_data_lock call), the ... the cached data. The kernel uses the pager_data_write call in response, just as when itinitiates a cache replacement. A data manager may restrict the use of cached data by issuing a pager_data_lock...
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A web-based system for notifying environment violation.doc
... contains all logic data of application. Separating logic data from application into it will make program scalable and higher performance.Most of web applications today use Relational Database Management ... 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 ... load data from the system because only a part of web page is updated. It does not need to load entire web page.- Access management: each user can access content and use many features that are...
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Vietnam standard tcvn 5945 _ 1995 Industrial waste water Discharge standards
... 1995Industrial waste water Discharge standards1 Scope1.1 This standard specifies limit values of parameters and concentration of substances in industrial waste water. In this standard "industrial ... of parameters and maximum allowable concentrations of substances in industrial waste waters before being discharged into water bodies are shown in the table 1.2.2 Discharge standards applying ... stream, canal, drain, spring or well, any part of the sea abutting on the foreshore, and any other body of natural or artificial surface or subsurface water. 2 Limitation values2.1 Values...
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Tài liệu Real-World ASP.NET—Building a Content Management System pptx
... components and metacontent in one place makes them easier to maintain, track, and find. It also provides a more secure way of storing your data. Having your data localized means you have a smaller area ... personal preferences and navigational habits. Personalization is a major reason why many people return to a Web site. At one time, seeing her name on a Web page was all that was needed for a user ... content management application maintains all aspects of content components, and the metacontent management application maintains the same for metacontent. The content delivery application generates...
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Tài liệu A Knowledge Management System for ERP Implementation pdf
... Italso represents an organizational infrastructurethat affects how people work and imposes itsown logic on a company’s strategy, organizationand culture. After organizations accept themanagement ... Venkataramanan M. 2003. Enter-prise resource planning: managing the implementa-tion process. European Journal of Operational Research146: 302–314.Motwni J, Mirchandani D, Madan M, Gunasekaran ... addition, the same question can be askedagain and again and the quality of the answerscan not be guaranteed. Therefore, the organiza-tion can have personnel in charge of monitoringand tracking questions...
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Tài liệu PLC Communications in a Process Control System docx
... generally 1 to 2 Mbaud has guaranteed performance, and is generally cheaper. The maximumtransmission time for any network configuration can be calculated. A classic rule for any PLC application ... simple and thus cheap, plus of course the fact that most PCs, which are used more andmore in automation systems today, have at least one PS232 (serial) interface as a standard.RS232, however, has ... 3 (a) and (b). Baseband transmissionCOMMUNICATIONPLC COMMUNICATIONS IN A PROCESS CONTROL SYSTEM by GR MacKenzie, AEGCommunication has become a major part of any process control automation system. ...
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Tài liệu Pollutants in urban waste water and sewage sludge doc
... widespread veterinary administration of drugs to livestock and farm waste disposal to land. A general recommendation to protect the water and soil environment is that a hazard,biodegradability and ... Sources of pollutants in wastewater [after Lester, 1987] A summary of the various inputs, outputs and pathways followed by water and associatedcontaminants from both natural and anthropogenic sources ... petroleum/ammonia processing andwastewaters, from the small electronic shops, jewellery shops, laboratories and glassmanufacturing. Section 6 contains a detailed Case Study (a) on PGMs in urban waste...
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Tài liệu A New Banking System The Needful Capital for Rebuilding the Burnt District docx
... people, annually, fifty cents each, on an average, in interest! and also continue to pay, annually, twodollars and a half for each person, on an average, of the principal, of the national debt!CHAPTER ... would always have a value as fixed and well known as that of specie; that would always be manytimes more abundant than specie can ever be; and that could always be delivered (in the absence of ... printed.Legally, the system (as the author claims, and is prepared to establish) stands upon the same principle as a patented machine; and is, therefore, already legalized by Congress; and cannot,...
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Tài liệu Panache: A Parallel File System Cache for Global File Access ppt
... massive and remote datasets.Panache supports a POSIX interface and employs a fullyparallelizable design, enabling application s to saturateavailable network and compute hardware. Panache canalso ... Panache was to maskthe WAN latencies by ensuring applications see thecache cluster’s performance on all data writes and meta-data updates. Towards that end, all data writes and meta-data ... to queue and flush metadataoperations on th e gateway nodes. Finally, we run a par-allel visualization application and a Hadoop applicationto analyze Panache with an HPC access p attern.7.1...
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Tài liệu Báo cáo khoa học: "Semantic Information and Derivation Rules for Robust Dialogue Act Detection in a Spoken Dialogue System" pptx
... INTERSPEECH, pages 268–271.C. Hori, K. Ohtake, T. Misu, H. Kashioka, and S. Naka-mura. 2009b. Statistical dialog management appliedto wfst-based dialog systems. In Proc. IEEE Inter-national Conference ... infor-mation data set harvested from the databases avail-able on the web, e.g., Wikipedia and Google Map. A- data consists of 1, 603 sentences with 317 wordtypes. The second type of data, called ... utterance, Htis the dialoguehistorical information, and Ω = {A 1, . . . , A q} is theset of DAs. Using the maximum approximation forsummation, (1) can be written as A ∗t= arg max A ΩWP...
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Tài liệu Báo cáo khoa học: "Using Automatically Transcribed Dialogs to Learn User Models in a Spoken Dialog System" doc
... 08540, USAusyed@cs.princeton.eduJason D. WilliamsShannon LaboratoryAT&T Labs — ResearchFlorham Park, NJ 07932, USAjdw@research.att.comAbstractWe use an EM algorithm to learn user ... true actionsand internal states. To handle this uncertainty, weemploy an EM algorithm that treats this informationas unobserved data. Although this approach does not directly employ manually ... θ be the maximum likelihoodestimate using automatically transcribed data,i.e., θasu=eKDasP a eKDas. This approach ignorestranscription errors and assumes that user be-havior depends...
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