A high temperature oil-bath-based-black-body source has been designed and constructed in the Radiometric Physics Division at the National Institute of Standards and Technology, Gaithersburg, MD. The goal of this work was to design a large aperture blackbody source with highly uniform radiance across the aperture, good temporal stability, and good reproducibility. This blackbody source operates ...

the robustness property can be added to dsc system at the expense of reducing performance, i.e., increasing the sum-rate. the aim of designing robust dsc schemes is to trade off between system robustness and compression efficiency. in this paper, after deriving an inner bound on the rate–distortion region for the quadratic gaussian mdc based rdsc system with two encoders, the structure of the r...

the use of the internet as a source of information gathering, self-help and support is becoming increasingly recognized. parents and professionals of children with hearing impairment have been shown to seek information about different communication approaches online. cued speech is a very new approach to persian speaking pupils. our aim was to develop a useful website to give related informatio...

background and objectives: surgical cancelation is a significant source of time and resource waste, patientsafety risk, and stress for patients and their families. in this study, a risk management-based approach is developed to prioritize factors contributing to surgical cancellation. methods: factors leading to surgical cancellation were comprehensively classified based on literature review.a...

twenty samples of the recent sediments were collected from the tigris river and some of its tributaries of northern iraq and twelve samples from the miocene and quaternary sediments. the study is conducted to define and assess the paleoenvironmental pollution by some heavy metals in these sediments in order to elucidate the probable source rocks and the main mineral phases suggested to be a sou...

We have demonstrated a 0.7 microm - 1.9 microm wavelength-tunable light source based on a single-pass optical parametric amplification (OPA) in a multiperiod magnesium oxide-doped periodically poled lithium niobate crystal. The OPA pump was a frequency-doubled ultrafast ytterbium-doped fiber oscillator, and the residual 1040 nm laser power after frequency doubling was recycled to generate a sup...

BACKGROUND Pulmonary embolism has become the third most common cardiovascular disease, which can seriously harm human health. OBJECTIVES To investigate the diagnostic value of dual-source computerized tomography (CT) and perfusion imaging for peripheral pulmonary embolism. PATIENTS AND METHODS Thirty-two patients with suspected pulmonary embolism underwent dual-source CT exams. To compare t...

A 12-fs broadband 100-nm source is used to combine multiphoton microscopy MPM and optical coherence tomography OCT in a single platform. An ultrafast Ti:sapphire laser simultaneously provides short pulses necessary for efficient MPM excitation and the broad bandwidth required for high-resolution OCT. Using 0.3m microspheres and a 63 , 0.95 numerical aperture objective, we demonstrate that MPM a...

Modelling search for people in 900 scenes: A combined source model of eye guidance Krista A. Ehinger a; Barbara Hidalgo-Sotelo a; Antonio Torralba b; Aude Oliva a a Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge, MA, USA b Computer Science and Artificial Intelligence Laboratory, and Department of Electrical Engineering and Computer Science, Massachu...

In this paper, we propose an efficient image transmission system for reliable transmission of vulnerable compressed images over mobile radio channels. The image coder is fully compatible with the JPEG baseline coding standard. Its transmission system is designed based on lossy transmission with combined source and channel coding (CSCC) and low complexity error concealment. Specifically, the pro...