نتایج جستجو برای: TBAC
تعداد نتایج: 40 فیلتر نتایج به سال:
This study examined some psychometric properties of the Test of Basic Auditory Capabilities (TBAC). Two experiments are described that evaluate the psychometric functions and the test-retest reliability of the tests comprising the TBAC. The psychometric functions were established for young listeners with normal hearing and the test-retest reliability was evaluated both with young listeners with...
tert-Butyl acetate (TBAc) is an organic solvent, which is commonly used in architectural coatings and industrial solvents. It has recently been exempted from the definition of a volatile organic compound (VOC) by the Air Resources Board (ARB) . Since the use of TBAc as a substitute for other VOCs has increased, thus its potential risk in humans has also increased. However, its inhalation toxici...
In this paper, we develop a new paradigm for access control and authorization management, called task-based authorization controls (TBAC). TBAC models access controls from a task-oriented perspective than the traditional subject-object one. Access mediation now involves authorizations at various points during the completion of tasks in accordance with some application logic. By taking a taskori...
In this paper, we develop a new paradigm for access control and authorization management, called task-based authorization controls (TBAC). TBAC models access controls from a task-oriented perspective than the traditional subject-object one. Access mediation now involves authorizations at various points during the completion of tasks in accordance with some application logic. By taking a taskori...
Tertiary-butyl acetate (TBAC) was tested for subchronic toxicity in rats and mice and reproductive toxicity in rats at inhalation concentrations of 0, 100, 400 or 1600ppm. An oral maternal toxicity study was conducted in rats at dose levels of 0, 400, 800, 1000 and 1600mgkg(-1)d(-1). In the inhalation studies, hematology, clinical chemistry, urinalysis, gross pathology and the majority of body ...
زمان القا و میزان مصرف گاز دو مشخصه مهم در بررسیهای سینتیکی تشکیل هیدراتهای گازی هستند. در کار حاضر این دو مشخصه سینتیکی در فرآیند تشکیل هیدرات در سیستمهای آب+ متان و آب + متان + تترا ان- بوتیل آمونیوم کلراید (TBAC) بررسی شد. آزمایشهای سینتیکی مورد نظر در حضور سه محلول آبی با غلظتهای 0، 3 و 5% از TBAC و در دمای K 15/278 و دو فشار (5/6 و MPa 8) انجام شد. نتایج آزمایشهای انجام شده نشان داد ...
Basing on the integration of two models, RBAC and TBAC, an access control model called Role-Task Based Access Control (R&TBAC) is given, which takes two parts as combining sites, one is the role and trustee, the other is the role permission assignment and trustee permissions. A set of fundamental conceptions, a series of authorization processes, a formalized description and some modeling tools ...
The overall response to TBA and TBAC in genetic toxicology assays is very weak to negative. There are only three papers that are relevant to TBA with purported positive responses. These results are far out-numbered by negative results in the mouse lymphoma assay, Chinese hamster ovary assessment for SCEs, aberrations and micronuclei, and negative responses in Salmonella TA 98, 100, 104, 1535, a...
This paper reports the improvement of a bitterness sensor based on a lipid polymer membrane consisting of phosphoric acid di-n-decyl ester (PADE) as a lipid and bis(1-butylpentyl) adipate (BBPA) and tributyl o-acetylcitrate (TBAC) as plasticizers. Although the commercialized bitterness sensor (BT0) has high sensitivity and selectivity to the bitterness of medicines, the sensor response graduall...
This study presents tributyl acetylcitrate (TBAC) as a novel ecofriendly high flash point and boiling solvent for electrolytes in lithium-ion batteries. The (TFP=217∘C) the (TBP=331∘C) of TBAC are approximately 200 K greater than that conventional linear carbonate components, such ethyl methyl (EMC) or diethyl (DEC). melting (TMP=−80∘C) is more 100 lower ethylene (EC). Furthermore, known an fro...
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