نتایج جستجو برای: btcs
تعداد نتایج: 136 فیلتر نتایج به سال:
Abstract. Breakthrough curves (BTCs) are a valuable tool for qualitative and quantitative examination of transport patterns in porous media. Although breakthrough (BT) experiments simple, they often require extensive sampling multi-component chemical analysis. In this work, we examine spectral induced polarization (SIP) signals measured along soil column during BT homogeneous heterogeneous prof...
Das Mannheimer Familienunternehmen Pepperl+Fuchs bietet mit ihren industriellen Box Thin Clients – sogenannte BTCs qualitativ hochwertige an, die durch Firmware “VisuNet RM Shell” einfach und schnell in Produktionsanlagen eingebunden werden können.
Presented here is a reanalysis of results previously presented by [Davis, B.M., Istok, J.D., Semprini, L., 2002. Push-pull partitioning tracer tests using radon-222 to quantify non-aqueous phase liquid contamination. J. Contam. Hydrol. 58, 129-146] of push-pull tests using radon as a naturally occurring partitioning tracer for evaluating NAPL contamination. In a push-pull test where radon-free ...
In this study, the effect of soil structure under saturated and unsaturated flow conditions on nonreactive bromide (BR) transport was investigated. The soil structure treatments consisted of undisturbed columns (prismatic and granular structures), and disturbed columns (single- grain structure). A constant concentration (C0= 0.005 M) of bromide was supplied on the surface of the columns in a st...
Biliary tract cancers (BTCs) are a group of highly aggressive malignant tumors with a poor prognosis. The current diagnosis is based mainly on imaging and intraoperative exploration due to brush cytology havinga low sensitivity and the standard markers, such as carcinoembryonic antigen (CEA) and carbohydrate 19-9 (CA19-9), not having enough sensitivity nor specificity to be used in a differenti...
In this study, the dynamic interactions between cyclodextrin (CD), an organic chemical and granular activated carbon (GAC) were investigated using column studies. Breakthrough curves of a chlorinated solvent, trichloroethylene (TCE) were obtained over a range of concentrations of 2-hydroxypropyl-beta-cyclodextrin (HPCD) (0, 20, and 50 g L(-1)) and flow velocities (1.0, 4.0, and 10.2 mL min(-1))...
The Tracer Additions for Spiraling Curve Characterization (TASCC) model has been rapidly adopted to interpret in-stream nutrient spiraling metrics over a range of concentrations from breakthrough curves (BTCs) obtained during pulse solute injection experiments. TASCC analyses often identify hysteresis in the relationship between and concentration as BTCs rises falls. mechanisms behind these pat...
Reduced tillage practices, including no-till, have been proposed to reduce NO3- leaching in agricultural soils. However, this is not universally supported by experimental data, and the effect of reduced on likely connected interaction between macropore flow resident solutes. To investigate this, we carried out infiltration experiments intact soil cores from conventionally tilled (CT) no-till (N...
BACKGROUND Biliary tract cancers (BTCs) are rare and heterogeneous group of tumors classified anatomically into intrahepatic and extrahepatic bile ducts and gallbladder adenocarcinomas. Patient-derived tumor cell (PDC) models with genome analysis can be a valuable platform to develop a method to overcome the clinical barrier on BTCs. MATERIAL AND METHODS Between January 2012 and June 2015, 40...
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