Detecting shadow for direct radiation using CityGML models for photovoltaic potentiality analysis

2013 ◽  
pp. 197-202 ◽  
Keyword(s):  
Direct Radiation

Radioimmunotherapy of Xenografts of Human Pancreatic Carcinomas - Intravenous and Intratumoral Application of 131l-Labelled Monoclonal Antibodies

1986 ◽  
Vol 25 (06) ◽  
pp. 235-238 ◽  
Author(s):  
S. Lander ◽  
M. Bahlo ◽  
R. Montz ◽  
R. Klapdor
Keyword(s):  
Irradiation Dose ◽  
Tumor Regression ◽  
Whole Body ◽  
Inhibit Tumor Growth ◽  
Local Irradiation ◽  
Clinical Value ◽  
Direct Radiation ◽  
Intravenous Injections ◽  
Induce Tumor Regression ◽  
High Doses

The effects of radioimmunotherapy were tested in xenografts of 2 different human pancreatic carcinomas comparing the intravenous and intratumoral application. On principle, intravenous injections of high doses of 131l-anti- Ca 19-9 or -BW 494/32 may inhibit tumor growth. In view of the low direct radiation dose (360-2100 rad), however, other factors than direct toxic effects have to be discussed, e. g. systemic effects due to the high whole-body irradiation. Intratumoral application, however, may induce tumor regression or growth inhibition due to the high local irradiation dose. Consequently, this treatment modality might be of clinical value at least in some patients.

Aerosol Radiative Effects Over India from Direct Radiation Measurements and Model Estimates

2021 ◽  
Author(s):  
Tamanna Subba ◽  
Mukunda M. Gogoi ◽  
K. Krishna Moorthy ◽  
Pradip K. Bhuyan ◽  
Binita Pathak ◽  
...  
Keyword(s):  
Radiative Effects ◽  
Direct Radiation ◽  
Aerosol Radiative Effects ◽  
Radiation Measurements ◽  
Aerosol Radiative

scholarly journals Direct radiation dose measurement of rectum during High-Dose-Rate 192Ir brachytherapy for cervical cancer treatment

2019 ◽  
Vol 6 (0) ◽  
pp. 39-42
Author(s):  
Emi Tomita ◽  
Hiroaki Hayashi ◽  
Takashi Asahara ◽  
Kanako Sakuragawa ◽  
Yasufumi Shitakubo ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Radiation Dose ◽  
Cancer Treatment ◽  
Dose Rate ◽  
High Dose Rate ◽  
High Dose ◽  
Dose Measurement ◽  
Direct Radiation

scholarly journals Characteristics of solar radiation at Xiaotang, in the northern marginal zone of the Taklimakan Desert

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12373
Author(s):  
Lili Jin ◽  
Sasa Zhou ◽  
Qing He ◽  
Alim Abbas
Keyword(s):  
Solar Radiation ◽  
Scattered Radiation ◽  
Weather Conditions ◽  
Taklimakan Desert ◽  
Observation Data ◽  
Total Radiation ◽  
Direct Radiation ◽  
Northern Margin ◽  
Monthly Total ◽  
Atmospheric Transmittance

The characteristics of solar radiation and the influence of sand and dust on solar radiation in the northern margin of Taklimakan Desert were analyzed using radiation observation data from 2018. The results showed that the annual total radiation, direct radiation, and scattered radiation at Xiaotang were 5,781.8, 2,337.9, and 3,323.8 MJ m−2, respectively. The maximum monthly total radiation, direct radiation, and scattered radiation were observed in July (679.8 MJ m−2), August (317.3 MJ m−2), and May (455.7 MJ m−2), respectively. The aerosol optical depth corresponded well with the scattered radiation, and the maximum value was in May. Further analysis showed a significant correlation between the total radiation and solar height angle under different weather conditions. Under the same solar height angle, total radiation was higher during clear days but lower on sandstorm days. Calculation of atmospheric transmittance showed that the average atmospheric transmittance on a clear day was 0.67; on sand-and-dust days, it was 0.46. When the atmospheric transmittance was 0.5, the increase in scattering radiation by aerosol in the air began to decrease. Probability analysis of radiation indicated the following probabilities of total radiation <500 W m−2 occurring on clear, floating-dust, blowing-sand, and sandstorm days: 67.1%, 76.3%, 76.1%, and 91.8%, respectively. Dust had the greatest influence on direct radiation; the probabilities of direct radiation <200 W m−2occurring on clear, floating-dust, blowing-sand, and sandstorm days were 44.5%, 93.5%, 91.3%, and 100%, respectively, whereas those of scattered radiation <600 W m−2were 100%, 99.1%, 98.1%, and 100%, respectively. Therefore, the presence of dust in the air will reduce scattered radiation.

Reconstruction of Acoustic Radiation of a Vibrating Structure Located in a Half-Space Bounded by a Passive Surface with Finite Acoustic Impedance

2020 ◽  
Vol 28 (04) ◽  
pp. 2050019
Author(s):  
Daren Zhou ◽  
Huancai Lu ◽  
D. Michael McFarland ◽  
Yongxiong Xiao
Keyword(s):  
Half Space ◽  
Acoustic Impedance ◽  
Free Space ◽  
Plane Surface ◽  
Spherical Wave ◽  
Boundary Surface ◽  
Sound Field ◽  
Wave Functions ◽  
Reconstruction Method ◽  
Direct Radiation

Vibrating structures are often mounted on or located near a passive plane surface with finite acoustic impedance, and hence the acoustic pressures measured in a half-space bounded by the surface consist of both the direct radiation from the structure and the reflection from the boundary surface. In order to visualize the direct radiation from the source into free space, a reconstruction method based on expansion in half-space spherical wave functions is proposed. First, the series of half-space spherical wave functions is derived based on the analytical solution of the sound field due to a multipole source located near an impedance plane. Then the sound field in the half-space is approximated by the superposition of a finite number of half-space expansion terms. The expansion coefficients are determined by solving an overdetermined linear system of equations obtained by matching this assumed solution to the total acoustic pressures in the half-space. The free-space radiation can finally be reconstructed via multiplying the free-space spherical wave functions by the corresponding coefficients. Numerical simulation examples of a vibrating sphere and a vibrating baffled plate are demonstrated. The effects of specific acoustic impedance of the boundary and the locations of the measurement points on the accuracy of reconstruction are examined.

Compact, high voltage modulator for direct radiation of ultrawideband RF pulses

1992 ◽  
Author(s):  
Ralph James ◽  
Howard E. Rhinehart ◽  
Hardev Singh ◽  
John Creedon
Keyword(s):  
High Voltage ◽  
Rf Pulses ◽  
Direct Radiation ◽  
High Voltage Modulator
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