Laboratory measurements

Xem 1-20 trên 97 kết quả Laboratory measurements
  • Tham khảo sách 'laboratory exercises in microbiology, fifth edition', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Progress in Telecommunications and Networking is fostering the development of high-speed and ubiquitous networks, both wired and wireless, characterized by an unprecedented degree of transport capacity and flexibility. At the same time, laboratory equipment for measurement and experimental evaluation of devices and systems is available, with a wide range of sophistication and complexity. Activities such as distance learning, performance monitoring and testing may now receive a support capable of making them truly distributed and highly cooperative....

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  • This paper proposes a method to extract product features from user reviews and generate a review summary. This method only relies on product specifications, which usually are easy to obtain. Other resources like segmenter, POS tagger or parser are not required. At feature extraction stage, multiple specifications are clustered to extend the vocabulary of product features. Hierarchy structure information and unit of measurement information are mined from the specification to improve the accuracy of feature extraction. ...

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  • Microfabricated accelerometer sensors have been developed to measure acceleration in a variety of applications, including automobile airbag crash sensors and seismic activity monitors. For this thesis a three-dimensional accelerometer sensor has been created for measuring involuntary human hand motion. The sensor uses three single-axis accelerometers fabricated at the MIT Microsystems Technology Laboratory.

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  • Learning objectives of this chapter include: Define and distinguish forensic science and criminalistics, Understand the importance of an investigator's understanding of crime laboratory capabilities, Describe the three measures of effectiveness of crime laboratories, Distinguish the Frye test from the Daubert test regarding the admissibility of scientific evidence, Explain the role and importance of DNA analysis in criminal investigation,…

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  • This paper summarizes the presentations and discussion at the Energy Options for the Future meeting held at the Naval Research Laboratory in March of 2004. The presentations covered the present status and future potential for coal, oil, natural gas, nuclear, wind, solar, geothermal, and biomass energy sources and the effect of measures for energy conservation. The longevity of current major energy sources, means for resolving or mitigating environmental issues, and the role to be played by yet to be deployed sources, like fusion, were major topics of presentation and discussion....

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  • The purpose of this handbook is to provide in one location detailed, up-to-date information on various facets of mass measurement that will be useful to those involved in mass metrology at the highest level (at national standards laboratories, for example), in science and engineering, in industry and commerce, in legal metrology, and in more routine mass measurements or weighings. We have pursued clarity and hope that we have in some measure succeeded.

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  • There are a number of good reasons to ground but primary among them is to ensure personnel safety. The following agencies and organizations all have recommendations and / or standards for grounding, to ensure that personnel safety is being protected.

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  • Standard laboratory methods for measurement of soil nitrate (NO3–N) use various procedures and instruments to analyze soil samples taken from the field and transported to the laboratory. Concerns with these procedures range from delays in measurement time, the high cost of soil sampling and analysis, high labour requirements, and the need to aggregate samples. With recent advances in using the ion-selective electrode, as presented in this chapter, soil NO3–N can now be measured directly, rapidly, accurately, at low cost, at a fine scale, and in real-time right in the field....

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  • In the early 1970's, Hewlett-Packard came out with a standard bus (HP-IB) to help support their own laboratory measurement equipment product lines, which later was adopted by the IEEE in 1975. This is known as the IEEE Std. 488-1975.

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  • The growth of magnetic resonance imaging (MRI) as a tool for studying brain function, as opposed to its more traditional role as a tool for studying brain anatomy and pathology, has been quite remarkable over the past decade. This has been driven in large measure by an appreciation of the considerable potential for functional magnetic resonance imaging (fMRI) to increase our understanding of how the human brain works, both in the normal and diseased states.

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  • 2 Calibration, Verification, Statistical Treatment of Analytical Data, Detection Limits, and Quality Assurance/Quality Control If you can measure that of which you speak, and can express it by a number, you know something of your subject, but if you cannot measure it, your knowledge is meager and unsatisfactory. —Lord Kelvin CHAPTER AT A GLANCE Good laboratory practice .........................................................................................38 Error in laboratory measurement ............................................................................

    pdf82p hoakimthienduong 21-12-2011 36 7   Download

  • Tham khảo tài liệu 'bioluminescence recent advances in oceanic measurements and laboratory applications part 10', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • While Japan’s share in India’s shrimp exports declined from 60 percent in 1993–94 to 39 percent in 2001–02, Japan remains the country’s main export market (figure 7). Over this same period, exports to the U.S. declined from 22 percent in 1993–94 to approximately 13 percent in 1996–97, recovering to 7 reach 31 percent again in 2001–02. Exports to the EU expanded from 13 percent by value in 1993–94 to 21 percent in 1995–96, but then collapsed to 6 percent in 1997–98 reflecting the restrictions imposed by the European Commission (see below).

    pdf56p lulanphuong 19-03-2012 30 8   Download

  • Trends in needing help with such activities as housework or shopping may be due to changes in the physical abilities of the older population, but they may also be related to the availability of help in the house, either familial or paid, the availability of appliances, and the accessibility of transportation (1, 12). However, causes of trends in IADL functioning have not been apportioned to reasons residing in the person and reasons outside the person. The trends in what is termed ADL disability have not been nearly as consistent as those in IADL disability (31).

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  • Tham khảo tài liệu 'bioluminescence recent advances in oceanic measurements and laboratory applications part 1', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tham khảo tài liệu 'bioluminescence recent advances in oceanic measurements and laboratory applications part 2', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

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  • Tham khảo tài liệu 'bioluminescence recent advances in oceanic measurements and laboratory applications part 3', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf15p 1810241198710 22-02-2012 35 6   Download

  • Tham khảo tài liệu 'bioluminescence recent advances in oceanic measurements and laboratory applications part 4', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf15p 1810241198710 22-02-2012 38 6   Download

  • Tham khảo tài liệu 'bioluminescence recent advances in oceanic measurements and laboratory applications part 9', khoa học tự nhiên, công nghệ sinh học phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf15p 1810241198710 22-02-2012 34 6   Download

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