نتایج جستجو برای: sar cheshmeh mine

تعداد نتایج: 41471  

2015
Mohamed Elhefnawy Widad Ismail

The present research is an introductory paper on Synthetic Aperture Radar (SAR) systems. A review on topics and techniques related to the longrange and shortrange SAR systems are presented. The longrange SAR image is constructed using RangeDoppler Algorithm (RDA); while the RangeMigration Algorithm (RMA) is implemented with shortrange SAR for image formation. The simulation results indica...

1997
Tom Logan

Researchers at the Alaska SAR Facility (ASF) have developed a hybrid package of YMP and T3D based SAR processing algorithms using the Arctic Region Supercomputing Center (ARSC). The capabilities include; radiometric calibration, low-pass filtering, creation of simulated SAR images, image-to-image correlation, terrain correction, incidence angle normalization, and large scale mosaicking. Using t...

2015
Zhihong Huang Wenhua Xiang Yu’e Ma Pifeng Lei Dalun Tian Xiangwen Deng Wende Yan Xi Fang

The planting of trees on mine wastelands is an effective, long-term technique for phytoremediation of heavy metal-contaminated wastes. In this study, a pot experiment with seedlings of Koelreuteria paniculata under six treatments of local mine wastes was designed to determine the major constraints on tree establishment and to evaluate the feasibility of planting K. paniculata on manganese mine ...

2015
Yejin Yang Jin Kim

In recent, the placement of backfill in underground mines has emerged as a new paradigm in research as it not only improves safety but also allows disposal of byproducts including coal ash. In this regards, this paper addresses the backfilling challenges in limestone mine to prevent sinkhole and subsidence. Limestone mines, generally regarded as being safer than coal and metal mines, have been ...

2015

ABStrAct Background: An estimated 1.7 bil­ lion people worldwide are affected by obesity­related comorbidities such as cardiovascular disease and diabetes. Bariatric surgery is recog­ nized as an effective treatment for morbid obesity. A study of patients at a Bc clinic was undertaken to deter­ mine if combining bariatric surgery with comprehensive care provided by a multidisciplinary team impr...

2011
Satoshi Hisanaga Koji Wakimoto Koji Okamura

It is possible to interpret the shape of buildings based on synthetic aperture radar (SAR) images acquired using airborne SAR systems. However, the pixel values of SAR images have high dynamic range intensity, and SAR images are not displayable without dynamic range intensity compression. We therefore have developed a dynamic range intensity compression method suitable for SAR image features. U...

Journal: :Infection and immunity 1997
A L Cheung K Eberhardt J H Heinrichs

The synthesis of protein A in Staphylococcus aureus is regulated by global regulatory loci such as sar and agr. Phenotypic data indicate that both sar and agr suppress protein A synthesis; like agr, sar also regulates protein A production at the transcriptional level. To determine the genetic requirement of sar in protein A suppression, we transformed shuttle plasmids containing various sar fra...

Journal: :The Science of the total environment 2008
M Simón I García F Martín M Díez F del Moral J A Sánchez

The soils affected by the spill of a pyrite mine were analysed in 100 sampling points at three depths (0-10, 10-30, and 30-50 cm) in 1998 (after the tailings were removed), 1999 (after the cleaning of the highly contaminated areas), and 2004 (after the tilling of the upper 20-25 cm). The comparative study reveals that the removal of the tailings left a heterogeneous distribution pattern of the ...

Journal: :Occupational and environmental medicine 1997
M Chiaradia B L Gulson K MacDonald

OBJECTIVE To evaluate the pathway of leaded dust from a lead-zinc-copper mine to houses of employees, and the impact on blood lead concentrations (PbB) of children. METHODS High precision lead isotope and lead concentration data were obtained on venous blood and environmental samples (vacuum cleaner dust, interior dustfall accumulation, water, paint) for eight children of six employees (and t...

Journal: :Genetics 2006
Andrew J Heidel Xinnian Dong

We investigated the fitness benefits of systemic acquired resistance (SAR) in Arabidopsis thaliana using a mutational and transformational genetic approach. Genetic lines were designed to differ in the genes determining resistance signaling in a common genetic background. Two mutant lines (cpr1 and cpr5) constitutively activate SAR at different points in SAR signaling, and one mutant line (npr1...

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