نتایج جستجو برای: lifetime testing
تعداد نتایج: 389779 فیلتر نتایج به سال:
A method of rapidly differentiating lung tumor from healthy tissue is extraordinarily needed for both the diagnosis and the intraoperative margin assessment. We assessed the ability of fluorescence lifetime imaging microscopy (FLIM) for differentiating human lung cancer and normal tissues with the autofluorescence, and also elucidated the mechanism in tissue studies and cell studies. A 15-patie...
OBJECTIVE To develop items to measure indoor tanning and sunless tanning that can be used to monitor trends in population surveys or to assess changes in behavior in intervention studies. DESIGN A group of experts on indoor tanning convened in December 2005, as part of a national workshop to review the state of the evidence, define measurement issues, and develop items for ever tanned indoors...
BACKGROUND In high income nations, traumatic life experiences such as childhood sexual abuse are much more common in people living with HIV/AIDS (PLWHA) than the general population, and trauma is associated with worse current health and functioning. Virtually no data exist on the prevalence or consequences of trauma for PLWHA in low income nations. METHODOLOGY/PRINCIPAL FINDINGS We recruited ...
a r t i c l e i n f o Keywords: High-power LED lamp Step-stress accelerated test Subsystem isolation method Lifetime Degradation Mechanism The lifetimes of high-power light-emitting diode (LED) lamps are investigated by step-stress accelerated test. The entire lamp is divided into three subsystems, namely, the LED light source, the driver, and the mechanical fixture. Step-stress accelerated tes...
A cold atomic ensemble suits well for optical quantum memories, and its entanglement with a single photon forms the building block networks that give promise many revolutionary applications. Efficiency lifetime are among most important figures of merit memory. In this paper, we report realization between an single-photon subsecond high efficiency. We engineer dual control modes in ring cavity t...
In [4, 13], Bancilhon and Paredaens introduced a notion of completeness for relational database languages on instance-level. Their criterion was subsequently called BP-completeness. Since then, it was used frequently in the context of other database models. However, its application in the context of languages involving object creation appears to raise some serious problems. In this paper, we us...
As opposed to contemporary activity-centric, process-aware information systems (PAIS), for which a multitude of concepts and implementations exist, there is only a very limited number of PAIS implementing data-centric, artifact-centric or object-aware approaches. This demo paper presents the implementation of a modeling environment for the object-aware approach to business process management. O...
From a sample of about 10 φ mesons produced at DAΦNE, we have selected KL mesons tagged by observing KS → ππ decays. We present results on the major KL branching ratios, including those of the semileptonic decays needed for the determination of |Vus|. These branching ratio measurements are fully inclusive with respect to final-state radiation. The KL lifetime has also been measured.
the parallel systems are special important types of coherent structures and have many applications in various areas.in this paper we consider a two-exchangeable-component parallel system for the generalized farlie-gumbel-morgenstern (generalized fgm) distribution. we study the reliability properties of the residual lifetime of the system under the condition that both components of the system ar...
BACKGROUND Despite the widespread offer of free HIV testing in France, the proportion of people who have never been tested remains high. The objective of this study was to identify, in men and women separately, the various factors independently associated with no lifetime HIV testing. METHODS We used multilevel logistic regression models on data from the SIRS cohort, which included 3006 Frenc...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید