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采用室内培养试验研究了不同镉浓度（1、5、10和15 mg·kg-1）及pH条件下（4、5、6、7和8）纳米沸石和普通沸石施用量（0、5、10和20 g·kg-1）对土壤镉形态分布和CEC的影响，并通过盆栽试验研究了纳米沸石和普通沸石施用量对大白菜生长、镉含量及积累量的影响. 结果表明，施用纳米沸石和普通沸石均显著降低了土壤可交换态镉（EX-F）含量和FDC（即土壤中镉的某种形态占总镉的质量分数）...
噻唑膦在不同介质不同pH条件下热贮稳定性
噻唑膦 酸碱度 介质 热贮稳定性
2017/10/23
噻唑膦加工后的稳定性是剂型选择的关键，为了提高其稳定性，延长其持效期，本研究通过噻唑膦在几种介质中的热贮稳定性试验，研究了酸碱度及介质对噻唑膦化学稳定性及稳定剂环氧大豆油对噻唑膦水乳剂热贮稳定性的影响，从而探索出噻唑膦在不同介质中稳定的最佳pH范围。研究结果发现，噻唑膦在同一pH下不同介质中的稳定性表现为硅藻土＞膨润土＞水乳剂，当pH为4.5时噻唑膦的稳定性最佳，而且加入0.2%的环氧大豆油做稳定...
[目的] 近年来由于超量施用化肥导致蕉园土壤严重酸化，土壤生产力逐年明显下降，香蕉产量骤降，传统产区栽培面积锐减。为此本试验在超高密度栽培条件下，以碱性长效缓释氮肥（ALNF，N 22%）作为供试肥料，研究其降低土壤酸度的效果及对香蕉产量和氮肥利用率的影响，并进一步探讨肥料的碱性能否造成氮素的损失。[方法] 本研究包括两个试验，分别为肥料种类和肥料用量对比试验，香蕉栽培密度均为3333 plant...
PIKM 2014: The 7th ACM Workshop for Ph.D. Students in Information and Knowledge Management
CIKM PIKM doctoral consortium Ph.D. forum disser- tations database systems
2016/1/22
PIKM workshop offers to Ph.D. students the possibility to bring their work to an international and interdisciplinary re-search community, and create a network of young researchers to exchange and deve...
Associate Professor Paul J. Yarowsky Ph.D. Department of Pharmacology at University of Maryland（图）
Associate Professor Paul J. Yarowsky Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Paul J. Yarowsky Ph.D. The principal research interests of this laboratory are concerned with understanding how cognitive and neurodegeneration disorders such as Down syndrome (DS) and Alzheimer’s dis...
Professor Daniel Weinreich Ph.D. Department of Pharmacology at University of Maryland（图）
Professor Daniel Weinreich Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Daniel Weinreich Ph.D.Our research goal is to understand how the immune and nervous systems communicate with each other at the cellular level. Interaction of antigen with mast cell-bound antibodies an...
Associate Professor William R. Randall Ph.D. Department of Pharmacology at University of Maryland（图）
Associate Professor William R. Randall Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
William R. Randall Ph.D. research focuses on how synaptic proteins are targeted to their subcellular and extracellular sites and what intracellular components are important in the regulation of their ...
Professor Yun Qiu Ph.D. Department of Pharmacology at University of Maryland（图）
Professor Yun Qiu Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Yun Qiu Ph.D.The overall theme of research in our laboratory is to study signal transduction within eukaryotic cells. We are particularly interested in elucidating the functions of protein kinases and...
Professor Vincent C.O Njar Ph.D. Department of Pharmacology at University of Maryland（图）
Professor Vincent C.O Njar Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Professor Vincent C.O Njar Ph.D. Department of Pharmacology at University of Maryland（图）。
Associate Professor Jessica A. Mong Ph.D. Department of Pharmacology at University of Maryland（图）
Associate Professor Jessica A. Mong Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Jessica A. Mong Ph.D.I received my PhD in Neuropharmacology from the University of Maryland, Baltimore. I then spent three years as a post-doctoral fellow in the Laboratory of Neurobiology and Behavio...
Professor Margaret M. McCarthy Ph.D. Department of Pharmacology at University of Maryland（图）
Professor Margaret M. McCarthy Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Margaret M. McCarthy Ph.D. I received my PhD in Behavioral and Neural Sciences from the Institute of Animal Behavior at Rutgers University in Newark, NJ in 1989. I then spent three years as a post-doc...
Assistant Professor Brian N. Mathur Ph.D. Department of Pharmacology at University of Maryland（图）
Assistant Professor Brian N. Mathur Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Brian N. Mathur Ph.D.I received my B.A (Neuroscience) from Oberlin College in 1998 where I performed honors research on comparative neuroanatomy with Mark Braford, Ph.D. Following college, I worked fo...
Assistant Professor Sandra Jurado Sanchez Ph.D. Department of Pharmacology at University of Maryland（图）
Assistant Professor Sandra Jurado Sanchez Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Sandra Jurado Sanchez Ph.D. My scientific interests have always revolved around the search for mechanisms underlying neuroplasticity and the bidirectional modulation of synaptic transmission. I receiv...
Professor Anil K. Jaiswal Ph.D.Department of Pharmacology at University of Maryland（图）
Professor Anil K. Jaiswal Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Professor Anil K. Jaiswal Ph.D.Department of Pharmacology at University of Maryland（图）
Professor Douglas O. Frost Ph.D. Department of Pharmacology at University of Maryland（图）
Professor Douglas O. Frost Ph.D. Department of Pharmacology at University of Maryland
2016/1/12
Douglas O. Frost Ph.D.Our group's principal research interest is in studying the cellular and molecular mechanisms underlying normal neural development and the perturbation of these mechanisms in dise...