نتایج جستجو برای: laboratory site
تعداد نتایج: 624379 فیلتر نتایج به سال:
Field site tests were carried out to assess the reliability of developed by RILEM and some regional evaluate alkali-reactivity potential aggregates (eight included). One hundred concrete cubes made with 13 different European aggregate combinations stored on eight field sites compare their expansions laboratory test results. All highly reactive caused significant expansion within first six years...
Use of laboratory animals to identify carcinogenic potential of chemicals, mixtures, and other agents has a modern history of greater than 40 years from which much useful scientific and public health information can be derived. While laboratory animals differ from humans in some respects that may affect responses to hazardous exposures, use of such models is based on experimental evidence indic...
Shear wave velocity measurements in soil are important for assigning site profiles to seismic classes and calculating other dynamic properties. The cone penetration test (SCPT) is commonly used determine shear the field. In laboratory, bender elements provide an easy means measure of specimens from discrete depths. this study, obtained unsaturated field on samples laboratory under similar stres...
The study was undertaken to determine the levels of 16 priority PAHs in soil and sediments from some vicinities Ikot Akpaden, Mkpat Enin. soils were prepared using standard procedure laboratory analyzed for US EPA Gas Chromatography-Mass Spectrophotometer (GC-MS). samples obtained two sampling sites at Akpaden (Site A C). Site C showed minimal concentration while site recorded ranging 0.01 4.25...
Samples from soil and leaf litter were obtained at a site located in the savanna biome of South Africa (Skukuza; 25.0°S, 31.5°E) and their bidirectional reflectance distribution functions (BRDF) were measured using the out-of-plane scatterometer located in the National Aeronautics and Space Administration’s (NASA’s) Goddard Space Flight Center (GSFC) Diffuser Calibration Facility (DCaF). BRDF w...
Numerous laboratory experiments have been performed in an attempt to mimic atmospheric secondary organic aerosol (SOA) formation. However, it is still unclear how close the aerosol particles generated in laboratory experiments resemble atmospheric SOA with respect to their detailed chemical composition. In this study, we generated SOA in a simulation chamber from the ozonolysis of αpinene and a...
BACKGROUND AND PURPOSE The reliability of hematoma volume (HV) measurement using the ABC/2 method in multicenter clinical trials is unknown. We determined the accuracy of ABC/2 method as an on-site test in comparison with the gold standard central HV-assessment and semiautomatic HV-assessment. Method- We analyzed data from an acute intracerebral hemorrhage multicenter clinical trial. HV was mea...
In introductory laboratory courses, many universities are turning from traditional laboratories with predictable outcomes to inquiry-inspired, project-based laboratory curricula. In these labs, students are allowed to design at least some portion of their own experiment and interpret new, undiscovered data. We have redesigned the introductory biology laboratory course at Brandeis University int...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید