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1.
Dash Rajesh Kumar Falae Philips Omowumi Kanungo Debi Prasanna 《Natural Hazards》2022,111(2):2011-2058
Natural Hazards - Debris flows are natural disasters with devastating consequences and frequent recurrence in changing climatic regime of the Indian Himalayas. Therefore, it is necessary to... 相似文献
2.
Anthony J. Provenzano John R. McConaugha Kathleen B. Philips David F. Johnson John Clark 《Estuarine, Coastal and Shelf Science》1983,16(5):489-499
The vertical distribution of stage I blue crab larvae, near the mouth of Chesapeake Bay, was examined over four diurnal cycles. Each of two stations was occupied for 30 hours twice during the summer of 1979.On each of the four cruises, peak larval abundance occurred after a night time high slack tide, suggesting a synchronized hatch of blue crab larvae. 90–99% of all larvae collected were taken in the neuston layer. The apparent timing of the hatches to coincide with the beginning of an ebb tide and the concentration of larvae in the neuston layer strongly suggests seaward transport of these early stage larvae and the probability of offshore development. 相似文献
3.
High-resolution microwave observations of several flares performed with the Westerbork Synthesis Radio Telescope (WRST) on 3 and 4 July 1993 are compared with Yohkoh observations in the soft and hard X-ray domain. Only for one flare, among the six analyzed, was the hard X-ray spectrum between 20 and 200 keV available from the Wide Bragg Spectrometer, supplying the energy spectrum of non-thermal particles responsible for this radiation and for the radio emission. A complete model of this flare is derived which accounts for all available observations in the X-ray and radio wavelengths. 相似文献
4.
Gladys Villegas Wenzhi Liao Ronald Criollo Wilfried Philips Daniel Ochoa 《地球空间信息科学学报》2017,20(4):325-332
AbstractClose-range hyperspectral images are a promising source of information in plant biology, in particular, for in vivo study of physiological changes. In this study, we investigate how data fusion can improve the detection of leaf elements by combining pixel reflectance and morphological information. The detection of image regions associated to the leaf structures is the first step toward quantitative analysis on the physical effects that genetic manipulation, disease infections, and environmental conditions have in plants. We tested our fusion approach on Musa acuminata (banana) leaf images and compared its discriminant capability to similar techniques used in remote sensing. Experimental results demonstrate the efficiency of our fusion approach, with significant improvements over some conventional methods. 相似文献
5.
Ahzegbobor Philips Aizebeokhai A. I. Olayinka V. S. Singh 《Environmental Earth Sciences》2010,61(7):1481-1492
Orthogonal set of 2D geoelectrical resistivity field data, consisting of six parallel and five perpendicular profiles, were
collected in an investigation site using the conventional Wenner array. Seven Schlumberger soundings were also conducted on
the site to provide ID layering information and supplement the orthogonal 2D profiles. The observed 2D apparent resistivity
data were first processed individually and then collated into 3D data set which was processed using a 3D inversion code. The
3D model resistivity images obtained from the inversion are presented as horizontal depth slices. Some distortions observed
in the 2D images from the inversion of the 2D profiles are not observed in the 2D images extracted from the 3D inversion.
The survey was conducted with the aim of investigating the degree of weathering and fracturing in the weathered profile, and
thereby ascertaining the suitability of the site for engineering constructions as well as determining its groundwater potential. 相似文献
6.
7.
Philips Hughes 《New Zealand geographer》1982,38(1):38-38
Book reviewed in this article:
SOCIAL POLICY AND THE WELFARE STATE IN NEW ZEALAND. By B. Easton
RICH AND POOR IN NEW ZEALAND. By D. Bedggood 相似文献
SOCIAL POLICY AND THE WELFARE STATE IN NEW ZEALAND. By B. Easton
RICH AND POOR IN NEW ZEALAND. By D. Bedggood 相似文献
8.
Radon-thoron monitoring in Tatun volcanic areas of northern Taiwan using LR-115 alpha track detector technique: Pre-calibration and installation 总被引：1，自引：0，他引：1
Arvind Kumar Vivek Walia Tsanyao Frank Yang Hsiao-Hsien Chang Shih-Jung Lin Karumpil Philips Eappen Baldev Raj Arora 《Acta Geophysica》2013,61(4):958-976
In the present study, experiments have been carried out to calibrate LR-115 alpha detector films in bare and cup-mode exposure for the measurement of radon and thoron concentrations in soil gas. Results showed non-uniformity in track formation on the films in bare-mode exposure. However, in cup-mode exposure the non-uniformity was reduced to a greater extent. The calibration factors obtained for radon in bare- and cup-mode exposures are 0.049 and 0.034 tr. cm?2 per Bq m?3 d, respectively. An attempt has been made to calibrate the radon-thoron discriminative cup with LR-115 films for simultaneous measurements of radon and thoron. This paper also presents the preliminary results of radonthoron monitoring in Tatun volcanic areas of northern Taiwan for the first time using radon-thoron discriminators with LR-115 films. The results show that the safe temperature to install the LR-115 films in volcanic areas is ≤ 65°C and thoron concentration in the study area is low. 相似文献
9.
Oyeyemi Kehinde David Olowokere Mary Taiwo Aizebeokhai Ahzegbobor Philips 《Natural Resources Research》2019,28(1):173-185
Natural Resources Research - The daunting challenge in the exploration and production of oil and gas in the face of continual rise in the world’s energy consumption has long been how to... 相似文献
10.
The concept of micro-bubble ejection is emerging as an attractive method for viscous drag reduction for high speed craft. Most of the drag reduction literature presents results for micro-bubble ejection above/below horizontal surfaces. Nevertheless, modern high-speed hull forms are slender with vertical surfaces. This paper presents results of model tests with micro-bubble ejection to the vertical sides of a high speed model with a non-wetting coating. The coating yielded drag reduction of 4–6% and micro-bubbles with coating reduced overall drag by 4–11%. The local coefficient of friction with micro-bubbles is analyzed and found comparable to vertical flat plate results of [Madavan et al., 1984]. 相似文献