Results 21 to 30 of about 189,089 (259)
Ultraviolet radiation rate in Mashhad, Iran
Todays, Climate change can be effect on the intensity of ultraviolet (UV) radiation and cause of many human diseases. In this cross-sectional study, changes of the intensity of UV ray were associated with the changes in latitude and longitude, height ...
Maliheh Akhlaghi +4 more
doaj +1 more source
Accretion Disc Thermal Reverberation in the Lamp Post Geometry
We present results regarding the disc response functions and the corresponding time lags assuming a standard Novikov--Thorne accretion disc illuminated by a point-like X-ray source.
Iossif E. Papadakis +2 more
doaj +1 more source
Measuring jumps during granular chute-flows using X-ray radiography [PDF]
The present paper describes laboratory tests on steady granular flows down a smooth chute using X-ray radiography. By using an original granular chute set-up with a gate at its end, standing discontinuites in height, velocity and density, namely jumps ...
Méjean Ségolène +3 more
doaj +1 more source
Is routine X-ray pelvimetry of value to decide on mode of delivery for women with labor dystocia?
X-ray pelvimetry is used for evaluation of pelvic inlet generally to diagnose cephalopelvic disproportion (CPD) or contracted inlet. Cesarean section delivery (C/S) is often performed for labor dystocia without CPD or contracted inlet.
Kaori Kawakami +11 more
doaj +1 more source
Quantitative anatomical characteristics and their radial variation in compression (COW), lateral (LAW), and opposite (OPW) woods of Agathis loranthifolia and Pinus merkusii stem woods growing in Indonesia were observed and compared to understand wood ...
Byantara Darsan Purusatama +2 more
doaj
BENCHMARK SOLUTIONS FOR TSUNAMI WAVE FRONTS AND RAYS. PART 1: SLOPING BOTTOM TOPOGRAPHY [PDF]
In this paper, the kinematics of tsunami wave rays and fronts over an uneven bottom are studied. A formula for the wave height along a ray tube is obtained. An exact analytical solution for wave rays and fronts over a sloping bottom is derived.
Andrey G. Marchuk
doaj
Is There an Effect of Patient’s Age, Weight, Height and Body Mass Index on Positioning Errors During Scan Acquisition of Dual X-ray Absorptiometry? [PDF]
Objective: Patient positioning during dual energy X-ray absorptiometry examination is important in assessing bone mineral density. While the role of the technician is considered important on correct positioning, the effect of the patient characteristics
Filiz Tuna, Derya Demirbağ Kabayel
doaj +1 more source
Characterization of polycrystalline lead oxide for application in direct conversion X-ray detectors
While polycrystalline lead oxide (poly-PbO) is known to be one of the most promising photoconductors for utilization in X-ray detectors, its major performance parameters such as charge yield and mobility-lifetime product (μτ) are still not well ...
O. Semeniuk +5 more
doaj +1 more source
Response Properties of Silicon Trench Photodiodes to Single α- and γ-Ray in Pulse Mode
This study proposes a new silicon X-ray sensor structure for photon-counting computed tomography (CT), which is a next-generation low-dose X-ray imaging technique.
Tetsuya Ariyoshi
doaj +1 more source
ABSTRACT Introduction Anthracycline‐related cardiac remodeling precedes heart failure in childhood cancer survivors. The objectives of this study were to determine the relationships between patient‐specific factors, moderate‐to‐vigorous physical activity (MVPA), and cardiac remodeling.
Hari K. Narayan +15 more
wiley +1 more source

