نتایج جستجو برای: fpa
تعداد نتایج: 818 فیلتر نتایج به سال:
Fibrinopeptide A (FPA) levels were measured in a group of 130 controls and patients with various types of primary hyperlipidemia to investigate whether an increased steady state level of thrombin activity is present in hyperlipidemic patients. In a subset of 56 subjects, levels of clotting factors II, VII, and X were measured as well. FPA levels in hyperlipidemic patients were not significantly...
Software size is an important measurement for the objective evaluation of software engineering characteristics such as productivity and quality. Currently, Function Point Analysis (FPA) is emerging as a credible technique that allows software professionals to measure the external functional size of software systems. While FPA has gained significant momentum, it does have its critics. Some criti...
The corrugated quantum-well infrared photodetector (C-QWIP) uses total internal reflection to couple normal incident light into the optically active quantum wells. The coupling efficiency has been shown to be relatively independent of the pixel size and wavelength thus making the C-QWIP a candidate for detectors over the entire infrared spectrum. The broadband coupling efficiency of the C-QWIP ...
Psychological Assessment can be defined as a complex procedure of information collection, analysis and processing. Formal Psychological Assessment (FPA) tries to improve this procedure by providing a formal framework to build assessment tools. In this paper, FPA is applied to depression. Seven questionnaires widely used for the self-evaluation of depression were selected. Diagnostic criteria fo...
This paper presents a recent numerical study conducted by researchers at the National Renewable Energy Laboratory on a point absorber wave energy conversion (WEC) system using a Reynolds-averaged Navier–Stokes (RANS)-based Computational Fluid Dynamics (CFD) method. The device we studied was a two-body floating-point absorber (FPA) that operates predominantly in heave and generates energy from t...
In this work, the performance of a 640 512 long-wavelength resonant quantum well infrared photodetector (R-QWIP) focal plane array (FPA) was evaluated as a function of operating temperature, bias, and photon flux using an F/2.2 optic. From these FPA measurements an assessment of the dark current, noise, conversion efficiency and noise-equivalent temperature difference is provided herein. Histog...
3 Abstract High data rates are highly demanded now-a-days in most of the communication systems such as audio/video broadcasting, cable networks, wireless networks etc. This can be achieved using Orthogonal Frequency Division Multiplexing (OFDM), which is a bandwidth-efficient method. However, the major drawback of the OFDM technique is its high Peak-to-Average Power Ratio (PAPR). Due to this hi...
Fresnel Zone Plate Lenses (FZPLs) have been successfully coupled to infrared (IR) antennas producing a responsivity enhancement of about two orders of magnitude. However, their lateral extension may compromise their applicability in focal-planearrays (FPA) IR imagers, where the dimensions of the pixel are constrained by the FPA spacing. When designing optimum-gain FZPLs for FPAs, we are lead to...
Function point analysis( FPA) was proposed to help measure the size of software system and has been widely used in the actual software developnient. However, it has been reported t,hat since function point counting involves judgment on the part of the counter, some difference for the same product would be caused even in the same organization. This paper describes an actual experience of applyin...
Foot progression angle (FPA) is a gait-related clinical measurement commonly used for assessing the rotational profile of lower extremity. This study examined accuracy two methods based on force-plate data estimating FPA during walking by comparing them with reference method using motion capture system. Ten healthy adults performed series overground trials at three different speeds: slow, prefe...
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