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Pedosphere 2007年第4期17卷 409-418页

作者： GAO Yan-zheng LING Wan-Ting ZHU Li-Zhong ZHAO bao-Wei zheng Qing-Song College of Resource and Environmental Sciences Nanjing Agricultural University Nanjing 210095 College of Environmental and Resource Sciences Zhejiang University Hangzhou 310028 （China） School of Environmental and Municipal Engineering Lanzhou Jiaotong University Lanzhou 730070 （China）

Phytoremediation is becoming a cost-effective technology for the in-situ clean up of sites polluted with hydrophobic organic contaminants （HOCs）. The major factors limiting phytoremediation are the mass transfer, rate of plant uptake, and microbial biodegradation of HOCs. This article discusses the potential of surfactants to enhance desorption, plant uptake, and biodegradation of HOCs in the contaminated sites. Positive effects of surfactants on phytoremediation have been recently observed in greenhouse studies. The presence of some nonionic surfactants including polyoxyethylene sorbltan monooleate （Tween 80） and polyoxyethylene（23）dodecanol （Brij35） at relatively low concentrations resulted in significant positive effects on phytoremediation for pyrene-contaminated soil. However, the anionic surfactant （sodium dodecyl sulfate, SDS） and the cationic surfactant （cetyltrimethylammonium bromide, CTMAB） were not useful because of their phytotoxicity or low efficiency for surfactant-enhanced phytoremediation （SEPR）. The mechanisms of SEPR for HOC-contaminated sites were evaluated by considering experimental observations. In view of concerns about the cost effectiveness and toxicity of surfactants to plants, more research is needed to enhance the use of SEPR technology.

关键词： hydrophobic organic contaminant remediation SEPR soil surfaztant

What MELD score mandates use of entecavir for ACLF-HBV HBeAg-negative patients?

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World Journal of Gastroenterology 2012年第33期18卷 4604-4609页

作者： Ying Yan Li Mai Yu-bao zheng Shao-Quan Zhang Wen-Xiong Xu Zhi-Liang Gao Wei-Min Ke Department of Infec-tious Diseases The Third Affiliated Hospital of Sun Yat-sen Uni-versity Guangzhou 510630 Guangdong Province China

AIM: To investigate optimal timing for therapeutic efficacy of entecavir for acute-on-chronic hepatitis B liver failure (ACLF-HBV) in hepatitis B e antigen (HBeAg)negative patients. METHODS: A total of 109 inpatients with ACLF-HBV were recruited from the Department of Infectious Diseases of the Third Affiliated Hospital, Sun Yat-sen University from October 2007 to October 2010. Entecavir 0.5 mg/d was added to each patient's comprehensive therapeutic regimen. Patients were divided into threegroups according to model for end-stage liver disease (MELD) score: high (≥ 30, 20 males and 4 females, mean age 47.8 ± 13.5 years); intermediate (22-30, 49 males and 5 females, 45.9 ± 12.4 years); and low (≤ 22, 28 males and 3 females, 43.4 ± 9.4 years). Statistical analysis were performed using SPSS 11.0 software. Data with normal distribution were expressed as mean ± SD and comparisons were made with Student's t tests. A value of P < 0.05 was considered statistically significant. Viral loads were related exponentially and logarithmic data were used for analysis. RESULTS: For 24 patients with MELD score ≥ 30, treatment lasted 17.2 ± 16.5 d. Scores before and after treatment were significantly different (35.97 ± 4.87 and 40.48 ± 8.17, respectively, t = -2.762, P = 0.011); HBV DNA load was reduced (4.882 ± 1.847 copies log10/mL to 3.685 ± 1.436 copies log10/mL); and mortality rate was 95.83% (23/24). Of 54 patients with scores of 22-30, treatment lasted for 54.0 ± 43.2 d; scores before and after treatment were 25.87 ± 2.33 and 25.82 ± 13.92, respectively (t = -0.030, P = 0.976); HBV DNA load decreased from 6.308 ± 1.607 to 3.473 ± 2.097 copies log10/mL; and mortality was 51.85% (28/54). Of 31 patients with scores ≤ 22, treatment lasted for 66.1 ± 41.9 d; scores before and after treatment were 18.88 ± 2.44 and 12.39 ± 7.80, respectively, (t = 4.860, P = 0.000); HBV DNA load decreased from 5.841 ± 1.734 to 2.657 ± 1.154 copies log10/mL; and mortality was 3.23% (1/31). CONCLUSION: Fo

关键词： Acute-on-chronic hepatitis B liver failure Hepatitis B e antigen negativity Entecavir Model for end-stage liver disease Mortality

Bilateral Breast Cancer with a Unilateral Lipid-rich Carcinoma:A Case Report

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Chinese Journal of Clinical Oncology 2007年第5期4卷 376-377页

作者： Jinsong Chen Jianxin Zhang Qingmo Liang zheng bao Zigui zheng Nie Hu Hongfei Yan Nanhua Hospital of Nanhua University Hengyang 421002 Hunan China

Case ReportA 38-year old female patient was hospitalized on the 10th of December, 2006 as she had noted a lump in her right breast for 3 months. Her past medi. cal history indicated that, because of a left-breast carcinoma complex, she had undergone a radical operation for a left-sided mastocarcinoma on the 20th, October, 2002, in Xiangya Hospital, Chasha. She received 5-course postoperative chemotherapy （i.e. CAF regimen）, and one course of radiotherpy on the left supraclavicular and left parasternal region. There was no medical record of breast cancer in her familv.

关键词： Breast tumor lipid-rich carcinoma

Epigenetic regulation of SARS-Cov-2 spike protein modulates cellular viability and nascent RNA transcription in neuronal cells

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Genes & Diseases 2024年第2期11卷 535-538页

作者： Xi Kong Peng Lu Jinyue Zhang zheng bao Chenghao Kuang Bingqing Xie Jianhua Peng Ning Ma Yong Jiang Shigang Yin Laboratory of Neurological Diseases and Brain Function The Affiliated Hospital of Southwest Medical UniversityLuzhouSichuan 646000China Institute of Epigenetics and Brain Science Southwest Medical UniversityLuzhouSichuan 646000China Department of Neurosurgery The Affiliated Hospital of Southwest Medical UniversityLuzhouSichuan 646000China Inflammation and Allergic Diseases Research Unit The Affiliated Hospital of Southwest Medical UniversityLuzhouSichuan 646000China

SARS-CoV-2 has been demonstrated to be highly susceptible to neuron-and glial-like cells,1 but there is no consensus regarding how the virus affects neurons following *** is therefore unknown if and how SARS-CoV-2 maintains the homeostasis of neuronal ***,we revealed that the receptor-binding domain(RBD)of the SARS-CoV-2 spike protein acted as an extracellular remodeling component to undermine epigenetic regulation,perturbnascentRNA(nsRNA)transcription,promote mitochondrial biogenesis,and increase cellular viability in SH-SY5Y cells.

关键词： invasion homeostasis maintain

Synthesis and Crystal Structure of Bis(nitrate)- bis(N,N'-dimethyl-N,N'-dibenzenyl-urea)uranyl(Ⅱ)

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Chinese Journal of Structural Chemistry 2003年第5期22卷 521-524页

作者： ZHU Li-Ming LI bao-Long② CAO zheng-Bai ZHANG Yong (College of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China) College of Chemistry and Chemical Engineering Suzhou University Suzhou 215006

The new uranyl complex UO2(NO3)2[PhN(CH3)C(O)(CH3)NPh]2 was synthesized and its crystal structure has been determined by single-crystal X-ray diffraction. Crystal data: C30H32N6O10U, triclinic, space group P with a = 7.772(1), b = 9.267(1), c = 12.644(1) ? a = 68.246(8), b = 73.871(9), g = 84.99(1)o, V = 812.4(2) ?, Mr = 874.65, Z = 1, Dc = 1.788 g/cm3, F(000) = 426, m = 5.062 mm-1, the final R = 0.022 and wR = 0.059 for 3571 observed reflections (I > 2s(I)). The central uranyl ion is coordinated by six oxygen atoms, two from the carbonyl groups of N,N-dimethyl-N,N-dibenzenyl-urea molecules and the other four from two nitrate groups.

关键词： substituted urea uranyl complex synthesis crystal structure

The West Plotted to “Start All Over Again” Duringthe Climate Negotiations

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International Understanding 2010年第1期 22-25页

作者： bao Hong zheng Junlu

The curtain of the Copenhagen Climate Change Summit has come down. Though the Copenhagen Accord has been reached among China, Brazil,

关键词：气候谈判炉灶西方气候变化哥本哈根法律约束力

The Parallel Degeneration of a System of Classification Hyperplanes

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The Parallel Degeneration of a System of Classification Hype...

An Effective Autofocus Algorithm for ISAR Imaging

1998 Fourth International Conference Signal Processing

作者： Zhang Junying bao zheng Electronic Engineering Research Institute Xidian University

＜正＞It is known that a neuron with hard limitation activation function functions as a classification hyperplane（CH）[2],and that a binary trainning samples can be used to train the network such that the classification hyperplanes of hidden neurons are in parallel pattern[4].This paper deals with a basic property of such a system of classification hyperplanes, with its parallel degeneration defined,and its parallel degeneration condition revealed out,being that if and only if there exists a subsystem of four adjacent classification hyperplanes not capable of parallel degeneration,the system of classification hyperplanes is not capable of parallel degeneration.

关键词： Feedforward Neural Network Neuron Classification Hyperplane Parallel Degeneration Parallel Degeneration Condition

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An Effective Autofocus Algorithm for ISAR Imaging

大斜视SAR成像的一种新的二维可分离处理方法

1996 CIE International Conference of Radar(ICR’96)

作者： Ye Wei bao zheng Key Laboratory for Radar Signal Processing EE Research InstituteXidian University

ISBN: (纸本)0780329147

＜正＞Motion compensation is a key step in inverse synthetic aperture radar（ISAR）*** paper first sets up the array model for ISAR imaging that clearly demonstrates the principle and possible methods for initial phase error *** effective autofocus method called calibrating source iteration algorithm（CASIA）is then presented to calibrate the initial phase ***, the real measured ISAR data of flying aircraft are processed to test the performance of CASIA and the imaging results confirm its validity.

关键词： synthetic aperture radar motion estimation radar imaging motion compensation aircraft calibration iterative methods array signal processing error analysis electromagnetic wave scattering inverse problems radar cross-sections radar clutter autofocus algorithm ISAR imaging motion compensation inverse synthetic aperture radar array model initial phase error calibration autofocus method calibrating source iteration algorithm measured ISAR data flying aircraft imaging results radar scattering radar clutter

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电子与信息学报 2005年第1期27卷 1-5页

作者：黄源宝保铮西安电子科技大学雷达信号处理重点实验室西安710071

大斜视角下SAR信号的特点表现为大的距离走动和小的距离弯曲,这使得采用横距域距离走动校正和二维可分离成像方法成为可能,但方位场景较大时要考虑方位向聚焦深度的限制。该文采用非线性调频变标的方法补偿方位向调频率随目标横距的变化... 详细信息

大斜视角下SAR信号的特点表现为大的距离走动和小的距离弯曲,这使得采用横距域距离走动校正和二维可分离成像方法成为可能,但方位场景较大时要考虑方位向聚焦深度的限制。该文采用非线性调频变标的方法补偿方位向调频率随目标横距的变化,得到了良好的结果。

关键词：大斜视SAR成像方位向聚焦深度非线性调频变标

反对称离散Hopfield网络的稳定性理论

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电子学报 1999年第1期27卷 93-97页

作者：许进保铮西安电子科技大学电子工程研究所

本文应用一种新的方法———图论方法重新系统地研究了反对称离散Ｈｏｐｆｉｅｌｄ网络的稳定性理论，这种方法回避了构造能量函数（即李雅浦洛夫函数）的麻烦，本文给出了网络收敛于长度为４的环吸引子的充分及必要条件，讨论了ｐ阶反... 详细信息

本文应用一种新的方法———图论方法重新系统地研究了反对称离散Ｈｏｐｆｉｅｌｄ网络的稳定性理论，这种方法回避了构造能量函数（即李雅浦洛夫函数）的麻烦，本文给出了网络收敛于长度为４的环吸引子的充分及必要条件，讨论了ｐ阶反对称离散Ｈｏｐｆｉｅｌｄ网络含有长度为４的环吸引子的数目，并提出了几个尚待解决的猜想．

关键词： Hopfield网络反对称型 DHNN 人工神经网络