a data acquisition system

... the acquisitions With this feature, we are able to perform data acquisition for durations that are as long as the capacity of data storage harddisk could support 17 Figure 9: Data acquisition card, ... conduct my appreciation to Dr Venugopalan Pallayil and Mr Mohanan Panayamadam for the administrative and field trip support, Mr Mandar Chitre and Dr Matthias Hoffmann-Kuhnt for proof reading the ... shallow water is crucial Existing highbandwidth acoustic data acquisition systems are large and complex This project has developed a novel stand-alone, portable, and compact cylindrical package...

Ngày tải lên: 04/10/2015, 15:46

... 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 ... 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 manmade ... NomFS|compagnie|compagnie|10|NOMPREP;8|DET;9 When aiming to build a large lexicon for general language, the input data should be large, balanced and representative enough Our system tags and lemmatizes input data using TreeTagger (Schmid,...

Ngày tải lên: 31/03/2014, 00:20

... Functional Model and the Data Language Daplex,’’ ACM-TODS, March, 1981 Smith, J and Smith, D., ‘‘Database Abstractions: Aggregation and Generalization,’’ ACM TODS, June 1977 Sordi, J., ‘‘IBM Database ... paper has suggested that data base procedures are a natural way to model complex objects and to allow data base oriented algorithms and precompiled queries in the data base Moreover, they appear ... typical relational data base system where the following two relations appear RELATION (relation-name, owner, ) ATTRIBUTE (relation-name, attribute-name, position, data- type, ) Whenever a relation...

Ngày tải lên: 28/04/2014, 13:31

... fundamentals • Ease of Data Acqusition (DAQ) with NI • Application Areas • Web-based Remote Monitoring • Next Steps National Instruments at A Glance • Leaders in computer-based measurement and automation ... Create Maximum Optimization and Efficiency for Your Measurement and Automation Applications Introduction to NI LabVIEW and Fundamentals in Data Acquisition with NI-DAQ Pham Quoc Hung Field Systems ... Instrumentation “To for test and measurement what the spreadsheet did for financial analysis.” 12 National Instruments Vision Evolved Graphical System Design Test & Measurement Automated Test Data Acquisition...

Ngày tải lên: 27/06/2014, 10:20

... order, etc – Measurand: Mechanical, thermal, magnetic, radiant, chemical – Physical measurement variable: Resistance, inductance, capacitance, etc Ch3 - DAS 36 18 8/26/2012 Passive and active sensors ... is an element capable of storing charge – The amount of charge is proportional to the voltage across the capacitor Q = CV, C is known as the capacitance (measured in Farads) – Taking derivatives: ... displacement sensors • The capacitance of a parallel plate capacitor is d is the separation between the plates, A is the area of the plates, ε0 is the permitivity of air and εr is the relative permitivity...

Ngày tải lên: 24/10/2014, 12:20

... the standard capacitor DAC, the successive approximation register (SAR), a counter, a decoder and a comparator A rectifier was also used to invert the signal below AGND (1.65V) as the AGND was used ... approximation analog-to-digital converter (SAR ADC) was implemented A capacitive DAC was use to eliminate the need of a sample and hold circuit By using a novel yet simple algorithm, the total capacitance ... xv Chapter 1: Introduction CHAPTER INTRODUCTION 1.1 Background In recent years, in search of methods that are both fast and accurate in diagnosing a patient, a particular challenge has arisen...

Ngày tải lên: 22/10/2015, 21:19

... band region and the gain that is achieved in the stop band region or AMAX = APASS − ASTOP In the case where a filter has ripple in the pass band, the gain of the pass band (APASS) is defined as ... REFERENCES Analog filtering is a critical portion of the data acquisition system If an analog filter is not used, signals outside half of the sampling bandwidth of the A/ D Converter are aliased back ... the sampling system has a low pass analog filter prior to the sampling mechanism, high frequency signals will be attenuated and not sampled ANALOG FILTER REALIZATION Traditionally, low pass filters...

Ngày tải lên: 11/01/2016, 11:32

... contrast; it is only necessary to compare the data structures that are expressed by the generated sentences The fact that the input data structures of the system are organized in such a way that ... Future I have sketched a practical approach to the assignment of contrastive accent in data- to-speech systems, which does not need a universal definition of alternative or parallel items Because the ... identical data types express semantically parallel information allows us to make use of the world (or domain) knowledge incorporated in the design of these data structures, without having to separately...

Ngày tải lên: 22/02/2014, 03:20

... data items, and then express the query in a standard language (IL) A translator is written for each data management system in order to rephrase the IL query into the language of the data management ... point where a unique node is determined, the mapping is made to a data item name via the CAN table This data item name is used in the generatlon of the query to the data management system system person ... Distributed Data Management and Computer Net-works, May 25-27, 1977, Berkeley, CA EUFID p r o t e c t s the data b a s e b y removin B the user from direct access t o the data management system and data...

Ngày tải lên: 08/03/2014, 18:20

Ngày tải lên: 09/03/2014, 01:20

... no path expressions that not exist in the database In typical situations, the DataGuide is signi cantly smaller than the original database Figure shows a DataGuide for the sample OEM 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 ... that if the database contains cycles, then a general path expression may match an in nite number of paths in the data When trying to match a general path expression against the database, we match...

Ngày tải lên: 23/03/2014, 12:20

... propagation resistance and a uniform distribution of subband error The two mechanisms facilitate the significant normalization of subband data and a quantization scheme design with linear distortion ... investigated Each signal contains about a 15 minutes length of sampled data The measurement results are depicted in Figure Figure reveals that an approximately linear relationship between PRD and ... nmax i is defined as WL(nmaxi ) = Each signal contains about a 10-min length of sampled data Each segment involves 1024 samples of ECG data The experimental result is shown in Table where each...

Ngày tải lên: 21/06/2014, 05:20

... growth and ramification parameters Table I shows the final data structure of the simplified example from Fig Discussion This new data ;acquisition system allows a quantitative analysis of root architecture ... numerical parameters from a simulation of root architecture for a mo old oak seedling = = In order to facilitate the root characteristics, a computation of final data storage structure is created ... length, interbranch distance, apical non-branching zone length, branch angle and numbers of generators) and geotropism coefficient (parameters not produced by the data acquisition system) Table II gives...

Ngày tải lên: 09/08/2014, 02:21

... backs the data up to a database In this framework, the data management systems database is the primary backup while the gateways database is a secondary backup in case the management system is ... preliminary processing necessary, storing the data to a local database, and forwarding the data to the data management system or application via the Internet It should be noted here that complex data ... and aggregate the sensor data (e.g., environmental data, patient data, battlefield data) for analysis While this work is popular not much work has gone into making deployment based research easier...

Ngày tải lên: 24/08/2014, 12:25

... propose ART (AQUA, R-Store and TI), a large scale microblogging data management system that is able to handle various user queries (such as updates and real-time search) and the data analysis ... key/value store, R-Store, for the OLTP and real-time aggregation query processing A real-time data cube is maintained as the historical data, and the newly updated data are merged with the data ... thesis are: • To design a full-functional microblogging data management system that supports OLTP, offline data anlytics, real-time data analytics and realtime search • To improve the performance...

Ngày tải lên: 09/09/2015, 11:16

... insufficient space to hold the new data) If space exists in a block already allocated, the space is filled with new data If the remainder of the new data contains more than a full block of data, a full ... 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 ... Organization Data only, no separation between files Data only, each file starts on 512 byte boundary Data + inodes, 512 byte block UNIX file system Data + inodes, 1024 byte block UNIX file system Data...

Ngày tải lên: 12/09/2012, 14:16

... nature to a data manager which fails to free data, but is easier to detect and prevent • Data manager changes data A malicious data manager may change the value of its data on each cache refresh ... 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 kernel issues a pager _data_ unlock call The data manager is ... desired_access) Requests data from an external data manager pager _data_ write(memory_object, offset, data, data_ count) Writes data back to a memory object pager _data_ unlock(memory_object, pager_request_port,...

Ngày tải lên: 12/09/2012, 15:05

... 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 System ... representation in GIS system A GIS system is often associated with a map There are different kinds of data representation on a map: raster data type and vector data type - Raster data type: is any ... 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 be delivered...

Ngày tải lên: 27/10/2012, 16:40

... were classified as transportation land use in the SCAG data and USGS classification system Vegetated areas inside the institutional areas were also identified as low pollutant loading areas, which ... the accuracy was compared to SCAG land use data Generally, Bayesian networks gave a reasonable estimate for stormwater pollutant mass emissions despite the potential problems of SCAG data 90 ... 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...

Ngày tải lên: 05/09/2013, 09:08

... et al., 200 7a) , water was taken from a municipal water filtering plant (Miyoshi, Hiroshima, Japan) prior to being treated for use as tap water The coliform bacteria and total bacterial counts in ... total bacterial count using the standard plate counting method One ml of appropriate dilutions of samples was inoculated in standard plate count agar (Nihon Pharmaceutical Co., Ltd., Tokyo, Japan) ... SC-CO2 treatment, whereas phosphatase (alkaline and acid) or naphthol-AS-BI-phosphohydrolase was slightly or a little inactivated Ishikawa et al (1996) reported that enzyme inactivation by the...

Ngày tải lên: 05/09/2013, 09:38