Owing to limitations in spatial resolution and sensitivity, it is difficult for conventional angiography to detect minute changes of perfusion in diffuse lung diseases, including pulmonary emphysema (PE). However, a high-gain avalanche rushing amorphous photoconductor (HARP) detector can give high sensitivity to synchrotron radiation (SR) angiography. SR angiography with a HARP detector provide...

Ion mobility spectrometer (IMS) has been widely deployed for on-site detection of explosives. The common nitro-based explosives are usually detected by negative IMS while the emerging peroxide-based explosives are better detected by positive IMS. In this study, a fast polarity-switchable IMS was constructed to detect these two explosive species in a single measurement. As the large traditional ...

X-ray free electron lasers (XFELs) promise to revolutionize X-ray science with extremely high peak brilliances and femtosecond X-ray pulses. This will require novel detectors to fully realize the potential of these new sources. There are many current detector development projects aimed at the many challenges of meeting the XFEL requirements [1,2]. This paper describes a pixel array detector (PA...

This paper presents a temperature sensor system providing the reference of TMOS-based thermal detectors, in order to enable contactless absolute measurements. The proposed directly employs few pixels TMOS detector as sensing element, thus detecting local temperature, while readout circuit is integrated on separate chip. features two-phase time-domain architecture, which provides biasing element...

single tap actually consists or four diodes distributed at 2 pS effective delay time along the line and tied together at the tap output. Fig. 2 shows the evolutio.n or the coincidence or two input pulses. The peak detector taps are biased such that neither the clock nor the trigger signal alone is large enough in amplitude to cause forward bias or the peak detector taps. This is the case at tim...

This paper proposes a new video denoising technique where spatially adaptive noise filtering in wavelet (transform) domain is combined with temporal filtering in signal domain. AWGN is being considered which behaves as Gaussian random variable. In this paper, spatial filtering of individual frames is done in the wavelet domain, and the filtering between the frames is done by recursive temporal ...

Objective(s) Developing and validating a simple, efficient, reproducible and economic reversed phase high performance liquid chromatographic (RP-HPLC) method for the quantitative determination of pefloxacin in bulk material, tablets and in human plasma. Materials and Methods A shim-pack CLC-ODS column and a mobile phase constituting acetonitrile: 0.025 M phosphoric acid solution (13:87 v/v, ...

We study the distribution of long Gamma Ray Bursts in the Epeak − Eiso and in the E peak– Fluence planes through an updated sample of 76 bursts, with measured redshift and spectral parameters, detected up to September 2007. We confirm the existence of a strong rest frame correlation Epeak ∝ E 0.54±0.01 iso . Contrary to previous studies, no sign of evolution with redshift of the Epeak − Eiso co...