نتایج جستجو برای: drainage density

تعداد نتایج: 450110  

Journal: :Natural Hazards 2022

Abstract Coupled 1D–2D hydrodynamic models are widely utilized in flood hazard mapping. Previous studies adopted conceptual hydrological or 1D to evaluate the impact of drainage density on river flow. However, affects not only flow, but also flooded area and location. Therefore, this work adopts model SOBEK investigate The uncertainty mapping is assessed by a designed case real case, Yanshuixi ...

2004
Li Wang Han-Ying Liang

Suppose the observations ðXi; YiÞ taking values in Rd R; i 1⁄4 1; . . . ; n are u-mixing. Compared with the i.i.d. case, some known strong uniform convergence results for the estimators of the regression function rðxÞ 1⁄4 EðYijXi 1⁄4 xÞ need strong moment conditions under u-mixing setting. We consider the following improved kernel estimators of rðxÞ suggested by Cheng (1983): brð1Þ n ðxÞ 1⁄4 Xn...

2015
Jing Zhou Hongying Pi Yingying Zheng

BACKGROUND Abdominal cavity drainage fluid can be used as an early diagnostic tool of postoperative complications, and observing its characteristics can help us to judge and handle postoperative complications. There is no accurate standard reference range on its characteristics after surgeries for gastrointestinal or retroperitoneal tumors. This research attempted to analyze its characteristics...

Journal: :ACP journal club 2003
Nancy Lane

D e s c r i p t i o n o f p r e d i c t i o n g u i d e Patients with RA who were at high risk for osteoporosis were identified according to inflammation, age, and immobility. To meet the criteria, 2 of the following 3 preliminary clinical criteria had to be present: 1) high disease activity defined as mean CRP > 20 mg/L or mean ESR > 20 mm per first hour or both; 2) older age defined for women...

2016
Pipas Kumar Varun Joshi

The investigation of geo hydrological features of drainage basin is necessary for planning and implementation of various watershed development programmes. The visual interpretation techniques coupled with morphometric analysis is used in the present study to evaluate the geomorphic process of upper watershed of river Subarnarekha in the state of Jharkhand, India. Various spatial information is ...

Journal: :Endoscopy 2017
Arvind J Trindade Yonatan J Hillman John H Wang Petros C Benias Larry S Miller

A 63-year-old man with a history of nonsmall cell lung cancer in remission following left upper lobe lobectomy was found to have a 5 cm mass along the inferior aspect of the stomach that had enlarged from a previous computed tomography (CT) scan. He underwent a Billroth II gastrectomy with resection of the mass, which was consistent with a metastasis of the primary tumor. Three weeks after abdo...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یاسوج - دانشکده علوم 1391

in this investigation the effect of external field on the electron density of nanostructures of cds, cdse, cdte, gaas and polymeric structure of three, four, five and six units of cds as a kind of nanosolar cells has been studied theoretically. as modeling this system in nanodimension, molecular structures has used. specific properties of molecular structures permit us to consider different sym...

2017
Soyoung Park Se-Yeong Hamm Hang-Tak Jeon Jinsoo Kim

This study mapped and analyzed groundwater potential using two different models, logistic regression (LR) and multivariate adaptive regression splines (MARS), and compared the results. A spatial database was constructed for groundwater well data and groundwater influence factors. Groundwater well data with a high potential yield of ≥70 m3/d were extracted, and 859 locations (70%) were used for ...

Every phenomena in the nature, despite the complexity of the subject, has certain rules and regulations. River pattern and behavior as one of the most complex natural phenomena to this is not an exception. Depending on geomorphologic, climatic, topographic and erosive conditions, the waterways exhibit different patterns and behaviors. One of the parameters which can be achieved using the comple...

2003
Brian M. Hynek Roger J. Phillips

Earlier analyses of valley networks on Mars often concluded that they were poorly integrated, immature drainage systems. Consequently, surface runoff from precipitation was generally thought to be an unimportant geomorphic process. Combination of Mars Global Surveyor (MGS) imaging and altimetry data sets, however, provides a vast improvement in image clarity and resolution. Although we have use...

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