搜索结果: 1-15 共查到“工学 Trace”相关记录28条 . 查询时间(0.078 秒)
CROWDSOURCING BIG TRACE DATA FILTERING: A PARTITION-AND-FILTER MODEL
Crowdsourcing traces Trace partitioning GPS trace filtering
2016/7/8
GPS traces collected via crowdsourcing way are low-cost and informative and being as a kind of new big data source for urban geographic information extraction. However, the precision of crowdsourcing ...
Can the polarization tagging of the ionogram trace deceive autoscaling methods? The Learmonth case
Ionospheric Monitoring Ionograms ARTIST Autoscala
2015/9/1
This paper focuses on the problem of invalid O/X polarization tagging of an ionogram and how this can affect ionogram autoscaling methods. To illustrate this problem, 623 ionograms recorded in March a...
Reverse flow injection analysis of trace amounts of anionic surfactants in seawater without liquid–liquid extraction
anionic surfactants reverse flow injection analysis seawater spectrophotometry
2015/3/3
In order to control the pollution by anionic surfactants in seawater, a simple, accurate and sensitive reverse flow injection (rFIA) spectrophotometric method for the determination of anionic surfacta...
RELATION BETWEEN FOSSIL FUEL TRACE GAS EMISSIONS AND SATELLITE OBSERVATIONS OF NOCTURNAL LIGHTING
DMSP nighttime lights trace gas emissions
2015/2/3
The vast majority of the world's fossil fuel trace gas emission sources can be detected and mapped using nighttime low light imaging data from the U.S. Air Force Defense Meteorological Satellite Progr...
Indexing Trace
Digital technology Digital art Authenticity
2014/10/29
This thesis aims to critically examine the relationship of digital technology and the modern art gallery in order to find the possible role of art galleries in the future. The integration of technolog...
Effects of Household Storage and Plumbing Systems on the Levels of Trace Elements in Desalinated Drinking Water in Kuwait
Desalinated Water Kuwait Corrosion Leaching Trace Elements
2013/3/12
Household desalinated drinking water samples collected from outdoor points and from indoor consumption points at 99 locations representing more than 95% of the residential areas in Kuwait were analyze...
Trace Element Concentrations in Some Traditional Diets Consumed in Selected Parts of Eastern Province of Kenya
Trace Elements Diets Semi-Arid Kenya
2013/3/11
Dietary quality is vital in maintaining sound nutritional status. The ecological conditions thus influence the type of diets and their nutritional quality. The purpose of this study was to determine t...
Trace Metal Contents in Some Brands of Canned Tomato Paste in Nigerian Market
Trace Metal Contents Nigerian Market
2016/6/1
Concentrations of metals (copper, zinc, lead and iron) were examined in some popular brands of canned tomato paste in Nigerian markets with a view of providing information on the risk associated with ...
Determination of Fat Contents, Iodine Values, Trace and Toxic Metals in Commonly Consumed Frozen Fish in Nigeria
Contents Iodine Values Trace Toxic Metals
2016/6/1
In Nigeria, frozen fishes are extensively consumed. But there is paucity of knowledge about the essential nutrients and contamination status of the fishes. In this study, fat contents, iodine values, ...
Trace Gas Detection from Plant Leaves, Flowers and Seeds Using Conventional and Photothermal Light Deflection Spectroscopy
Photothermal Deflection Spectroscopy Deflection Spectroscopy Trace Detection
2013/1/30
Photothermal deflection spectroscopy is a method used indirectly to measure optical absorption of a sample. Different techniques can be employed to measure the amount of deflection, hence evaluate opt...
Hollow-Fiber Microporous Membrane Liquid-Liquid Extraction for Determination of Polybrominated Diphenyl Ethers at Trace Levels in Sewage Sludge with Gas Chromatography-Electron Capture Detection
PBDE Gas Chromatography Sewage Sludge Membrane Extraction LPME
2013/3/12
A two-phase hollow-fiber (HF) liquid-phase microextraction (LPME) method followed by gas chromatography was developed for quantification of 8 major polybrominated diphenyl ethers at trace level in sew...
Validating Trace Metals Levels in PM2.5 Aerosols from Indoor and Outdoor Polluting Premises
Trace metals PM2.5 car-parks buildings air pollution
2010/12/22
Problem statement: Our studies revealed high trace metals concentrations in PM2.5 aerosols from Residential Buildings (RB-I) and enclosed Car Parks (CP-I) indoor than in outdoor Residential Buildings ...
Rare earth elements, Sr, Ba, Fe, and major cation concentrations in some living foraminiferal tests collected from Iriomote Island, Japan: An exploration for trace element behavior during biogenic calcium carbonate formation
foraminifera rare earth elements calcium carbonate partitioning biomineralization
2017/8/9
Rare earth elements (REE), Sr, Ba, Fe, Mg, Ca, Na, and K concentrations in three kinds of living foraminiferal tests collected from Iriomote Island, Japan were measured in order to obtain some qualita...
2010年5月19日，第十一届中国国际食品和饮料博览会在上海隆重开幕。本次博览会上，“2009食品安全优秀解决方案Top100评选”结果顺利揭晓，本次评选涉及检测认证、食品包装、冷链追溯等六大领域，3M、DSM、量子高科等诸多国内外知名企业参与了评选，山东省标准化研究院ChinaTrace食品安全追溯系列产品解决方案成功入围，并最终在众多参选厂商中脱颖而出，荣获一等奖。
SF6 新气痕量杂质气相色谱分析新方法与电力行业SF6 新气推荐标准（A New Trace Impurity Gas Chromatography Analysis Method for SF6 New Gasand Recommended Standard of SF6 New Gas for Electric Power Industry）
SF6新气 痕量杂质 色谱方法 标准
2010/8/17
介绍了一种SF6新气痕量杂质气相色谱分析的新方法。与DL/T 920—2005《六氟化硫中空气、四氟化碳的气相色谱分析方法》相比较，新方法可以从SF6新气中检出更多的痕量杂质，甚至多达17种，且方法高度智能化并便于普及。考虑到SF6新气中某些杂质会影响有关电力设备的使用寿命，提出了电力行业SF6新气推荐标准的方案。