نتایج جستجو برای: effective precipitation

تعداد نتایج: 740441  

2017
Yuxiang He Yu Zhang Robert Cifelli David Kitzmiller

This paper presents a new and enhanced fusion module for the Multi-Sensor Precipitation Estimator (MPE) that would objectively blend real-time satellite quantitative precipitation estimates (SQPE) with radar and gauge estimates. This module consists of a preprocessor that mitigates systematic bias in SQPE, and a two-way blending routine that statistically fuses adjusted SQPE with radar estimate...

2007
M. R. Lessard W. Lotko J. LaBelle W. Peria C. W. Carlson F. Creutzberg D. D. Wallis

[1] Auroral substorms are the result of a complex process involving coupling between the solar wind, magnetosphere and ionosphere. In this study, the objective is to understand the processes that precede what is perhaps the most fundamental aspect, the brightening of a preexisting arc at onset. The notion that this brightening provides an indicator of substorm onset remains one of the few aspec...

2008
KEVIN L. CROWELL Gerrit Hoogenboom Kevin L. Crowell Ron W. McClendon Walter D. Potter Joel O. Paz Maureen Grasso Sherry Crowell Daniel Shank Bob Chevalier Brian Smith

Precipitation, in meteorology, is defined as any product, liquid or solid, of atmospheric water vapor that is accumulated onto the earth’s surface. Water, and thus precipitation, has a major impact on our daily livelihood. As such, the uncertainty of both the future occurrence and amount of precipitation can have a negative impact on many sectors of our economy, especially agriculture. There is...

2016
Sahand Jorfi Mehdi Ahmadi Samaneh Mirali Raheleh Kujlu

Background: Mature landfill leachate is a complicated mixture which is resistant to biological treatment processes. The treatment of mature landfill leachate by struvite precipitation and Fenton oxidation was the main objective of the current research. Methods: Struvite with the phosphate/ammonia/magnesium molar ratio of 1/1/1.05 was considered during all experiments. Five initial pHs of 3, 4, ...

2014
Xiaomeng Song Jianyun Zhang Amir AghaKouchak Shouraseni Sen Roy Yunqing Xuan Guoqing Wang Ruimin He Xiaojun Wang Cuishan Liu

This study investigates changes in temporal trends and spatial patterns of precipitation in Beijing over the last six decades. These changes are discussed in the context of rapid urbanization and the growing imbalance between water supply and demand in Beijing. We observed significant decreases in precipitation amounts from 1950 to 2012, with the annual precipitation decreasing by 32% at a deca...

2014
Jun-Jie Poh Samuel Ken-En Gan

gDNA (genomic DNA extraction from blood is a fundamental process in many diagnostic, identification and research applications. Numerous extraction methods have been reported and are available commercially. However, there is insufficient understanding of the impact of chemical buffers on DNA yield from either whole or nucleated blood. Moreover, these commercial kits are often costly, constrainin...

ژورنال: علوم آب و خاک 2015
دربندی, صابره, علیزاده, نسیم, قربانی, محمدعلی,

Information on suspended sediment variation in times of flood is important in management of water resources, particularly management of basins, and in investigation of the causes of erosion. The relationship between discharge and suspended sediment concentration during floods is not similar and homogeneous for different reasons such as precipitation variety, discharge rate and sources of sedime...

Journal: :ISPRS Int. J. Geo-Information 2017
Anil Shrestha Wei Luo

Groundwater nitrate contamination in the Central Valley (CV) aquifer of California is a ubiquitous groundwater problem found in various parts of the valley. Heavy irrigation and application of fertilizer over the last several decades have caused groundwater nitrate contamination in several domestic, public and monitoring wells in the CV above EPA’s Maximum Contamination level of 10 mg/L. Source...

2014

An enzymatic biotransformation process based on extracted pyruvate decarboxylase (PDC) overcomes the problem of by-product benzyl alcohol production. Seven methods of cells disruption which included application of glass beads, freezing/thawing sequence, silver nanoparticles, ultrasonication, freezing/thawing sequence with glass beads, freezing/thawing sequence with silver nanoparticles, and fre...

Journal: :Journal of oleo science 2018
Shigesaburo Ogawa Isao Takahashi Maito Koga Kouichi Asakura Shuichi Osanai

Cryogenic treatment, like the freeze-thaw process, has been reported to be effective in modifying the physicochemical properties of polymeric hydrogels. However, not much attention has been paid to this process in terms of the precipitation of surfactant-water systems. In this study, two effective cryogenic methodologies were successfully reported to alter the physicochemical properties of a pr...

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