检索结果-南通市图书馆

Soil remediation of degraded coastal saline wetlands by irrigation with paper mill effluent and plowing

Journal of Forestry Research 2012年第2期23卷 267-274页

作者： XIAMeng-jing LIU Zhi-mei lu zhao-hua Institute of Restoration Ecology School of Chemical and Environ-mental Engineering China University of Mining and Technology Bei-jing 100083 China Chongqing Institute of Green and Intelligent Technology ChineseAcademy of Sciences. 85 Jinyu Road Yubei District Chongqing410022 China. Key Lab of Eco-environmental Science for Yel-low River Delta in Shandong Province Binzhou Shandong 256600China. E-mail： luzhaohua@***.

Combined with anti-waterlogging ditches, irrigation with treated paper mill effluent （TPME） and plowing were applied in this study to investigate the effects of remediation of degraded coastal sa- line-alkaline wetlands. Three treatments were employed, viz., control （CK）, irrigated with 10 cm depth of TPME （I）, and plowing to 20 cm deep before irrigating 10 cm depth ofTPME （IP）. Results show that both I-treatment and IP-treatment could improve soil structure by decreasing bulk density by 5% and 8%. Irrigation with TPME containing low salinity stimulated salts leaching instead of accumulating. With anti-waterlogging ditches, salts were drained out of soil. Irrigation with 10 cm depth of TPME lowered total soluble salts in soil and sodium adsorption ration by 33% and 8%, respective!y, but there was no significant difference compared with CK, indicating that this irrigation rate was not heavy enough to remarkably reduce so!l salinity and sodicity, Thus, in-i： gation rate should be enhanced in order to reach better effects of desalinization and desodication. Irrigation with TPME significantly increased soil organic matter, alkali-hydrolyzable nitrogen and available phosphorus due to the abundant organic matter in TPME. Plowing increased soil air circulation, so as to enhance mineralization of organic matter and lead to the loss of organic matter; however, plowing significantly improvedsoil alkali-hydrolyzable nitrogen and available phosphorus. Improvements of physicochemical properties in I-treatment and IP-treatment both boosted soil microbial population and activity. Microbial biomass carbon increased significantly by 327% （I-treatment） and 451% （IP-treatment）, while soil respiration increased significantly by 316% （I-treatment） and 386% （IP-treatment）. Urease and dehydrogenase activities in both I-treatment and IP-treatment were significantly higher than that in CK. Phosphatase in IP-treatment was significantly higher than that in CK. Compared to I-treatment, IP-trea

关键词： anti-waterlogging ditches degraded saline-alkaline wetlands plowing remediation soil property treated paper mill effluent

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Treatment of polycystic liver disease with resection-fenestration and a new classification

引用

World Journal of Gastroenterology 2008年第32期14卷 5066-5072页

作者： Tuan-Jie Li Hai-Bin Zhang Jun-hua lu Jun zhao Ning Yang Guang-Shun Yang Eastern Hepatobiliary Hospital Second Military Medical University Shanghai 200438 China

AIM: To evaluate outcomes in patients with autosomal dominant polycyst liver disease (APLD) treated by combined hepatic resection and fenestration. A new classification was recommended to presume postoperative complications and long outcome of patients. METHODS: Twenty-one patients with APLD were treated by a combined hepatic resection and fenestration technique. All patients were reviewed retrospectively, and clinical symptoms, performance status and morbidity were recorded. A new classifi cation of APLD is recommended here. RESULTS: All patients were discharged when free of symptoms. The mean follow-up time was 55.7 mo and three patients had a recurrence of symptoms at 81, 68 and 43 mo after operation, respectively. The overall morbidity rate was 76.2%. Two patients with Type B-Ⅱ and Type B-Ⅰ developed biliary leakage. Four patients had severe ascites, including three with Type B-Ⅲ and one with Type B-Ⅱ, Nine patients had pleural effusion, including one with Type A-Ⅰ; one with Type B-Ⅰ; fi ve with Type B-Ⅱ; one with Type A-Ⅲ and one with Type B-Ⅲ. Three patients with Type B had recurrence of symptoms, while none with Type A had severe complications. CONCluSION: Combined hepatic resection and fenestration is an acceptable procedure for treatment of APLD. According to our classifi cation, postoperative complications and long outcome can be predicted before surgery.

关键词： Autosomal dominant polycyst liverdisease Autosomal dominant polycyst kidney disease Fenestration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Primary Angiosarcoma of the Womb: A Case Report

引用

Chinese Journal of Clinical Oncology 2006年第6期3卷 455-456页

作者： Jinliang Ping Jishun Dong Jianzhong Mao Ping lu hua zhao Department of Pathology Huzhou Central Hospital Huzhou Zhejiang 313000 China

Case Report A 35-year-old patient was admired to the hospital on March 27th, 2005 because of profuse leukorrhea for 3 months and progressive abdominal pain for half a month. The leukorrhea, which started for no apparent reason, contained streaks of blood and had an odor. One month prior to her hospitalization, her symptoms intensified and she was diagnosed by pathological examination with chronic inflammation of the mucous membranes of the cervix. A half month before being admitted, the patient＇s symptoms became more serious with abdominal distension and pain.

关键词： tumor of the womb angiosarcoma diagnosis.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Findings from 2010 Global Adult Tobacco Survey: Implementation of MPOWER Policy in China

引用

Biomedical and Environmental Sciences 2010年第6期23卷 422-429页

作者： GONG-huaN YANG QIANG LI CONG-XIAO WANG JASON HSIA YAN YANG LIN XIAO JIE YANG lu-hua zhao JIAN ZHANG LI XIE Chinese Center Of Disease Control and Prevention Beo'ing 100050 China Office On Smoking and Health Us Centers Of Disease Control and Prevention Atlanta Georgia USA

Objective To assess the implementation of five key tobacco control policies in China： protection from second-hand smoke （SHS）; offering help to quit; health warnings regarding tobacco use; the enforcement of bans on tobacco advertising, promotion, and sponsorship; and increasing tobacco taxes and prices. Methods Using 2010 Global Adults Tobacco Survey in China （GATS-China）, 10 indicators are used to assess the implementation of five key tobacco control policies of MPOWER in China. Results Overall, 63.3% and 72.7% of adultsnoticed people smoking indoor workplaces and public places, respectively. Approximately 60% of smokers were not asked about their smoking habits and approximately 67% were not advised to quit on their visit to a health worker. Sixty percent of adults noticed health warning messages on cigarette packaging and in the media in the last 30 days, 63.6% stated that they would not consider quitting. Twenty percent of respondents noticed tobacco advertising, promotion, and/or sponsorship activities in the 30 days prior to the survey. Among them, 76.3% noticed the direct advertising and 50% noticed from TV programs. Although purchasing price of one pack of cigarettes ranged from 1 to 200 RMB, 50% of current smokers （about 150 million） spent 5 RMB or less on one pack of cigarette. The expenditure on 100 packets of cigarettes represents 2% of 2009 GDP per capita. Conclusion The average score for the implementation of the 5 policies of MPOWER in China is 37.3 points, indicating tobacco control policies in China is poor and there is a large gaps from the FCTC requirements.

关键词： Tobacco control Implementation of FCTC MPOWER policies China

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Age trends and correlations of growth and wood properties in clone of Eucalyptus urophylla × E. grandis in Guangdong, China

引用

Journal of Forestry Research 2012年第3期23卷 467-472页

作者： WU Shi-jun XU Jian-min LI Guang-you Du Zhi-hu lu zhao-hua LI Bao-qi Research Institute of Tropical Forestry Chinese Academy of ForestryGuangzhou 510520GuangdongChina

We assessed growth traits and wood properties ofDH32-29, a clone of Eucalyptus urophylla x E. grandis, at age of two to six years in Guangdong in China. Analysis of variance of studied traits showed that there were significant differences （1% level） on all studied traits among ages except for wood basic density. Analysis of age trends of growth traits and wood properties revealed that rotation length of DH32-29 should be more than six years or longer. Phenotypic correlations among traits at individual ages indicated that correlations between growth traits were strongly positive. There was significant change in relationship between growth and wood basic density with increasing age, ranging from -0.03 to -0.54 at 2 and 5 year and 0.003 to 0.3 at 3, 4 and 6 year. Correlations between Pilodyn pin penetration and basic density measured on increment cores showed that Pilodyn could rank or group genotypes or sites into density classes, but failure to predict individual tree and individual clone.

关键词： eucalypt age trends growth traits wood properties correlation nondestructive methods

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

引用

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia zhao Taixi Feng Guimin lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Evaluation model of the grey fuzzy on eco-environment vulnerability

引用

Journal of Forestry Research 2007年第3期18卷 187-192页

作者： SHI Qing lu zhao-hua LIU Zhi-mei MIAO Ying XIA Meng-jing Institute of Restoration Ecology China University of Mining and Technology （Beijing） Beijing 100083 P. R. China

The basic theory and evaluation index system of eco-environment vulnerability were reviewed. Based on the grey theory and fuzzy mathematics, a new comprehensive evaluation method from qualitative to quantitative, called grey-fuzzy evaluation, was proposed for evaluating eco-environment vulnerability. It was integrated of Association for Healthcare Philanthropy （AHP）, grey correlation analysis, grey statistics and fuzzy judgment. The constitutional principle and method of the new evaluation method were given and its feasibility and effectiveness were proved by the practical example.

关键词： Eco-environmental vulnerability Grey theory Fuzzy mathematics Comprehensive evaluation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

利用空域和时域信息自动分割MPEG-4视频对象

引用

天津大学学报（自然科学与工程技术版） 2004年第5期37卷 410-413页

作者：鲁照华李华孟伟天津大学电子信息工程学院天津300072

从视频序列中分割出视频对象是实现基于内容压缩编码方法的关键.该文提出了利用空域和时域信息实现MPEG 4视频对象的自动分割方法,利用相邻两帧的帧差和当前帧的纹理、颜色信息及面部定位、梯度滤波等技术,实现目标的初始化,再利用快速H... 详细信息

从视频序列中分割出视频对象是实现基于内容压缩编码方法的关键.该文提出了利用空域和时域信息实现MPEG 4视频对象的自动分割方法,利用相邻两帧的帧差和当前帧的纹理、颜色信息及面部定位、梯度滤波等技术,实现目标的初始化,再利用快速Hausdorff距离法跟踪目标.处理结果表明,该方法对处理相对静止的头肩序列图像具有较强的稳定性,处理速度较快,能取得较好的分割效果.

关键词：视频对象面部定位梯度滤波空域时域 MPEG-4 图象分割图象编码

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于图像细节程度的快速帧间模式选择算法

引用

天津大学学报 2006年第9期39卷 1131-1135页

作者：李华侯玲张淑芳鲁照华天津大学电子信息工程学院天津300072

为降低编码过程中宏块进行模式选择的计算复杂度,提出了一种快速模式选择算法．该算法首先计算一个宏块的运动矢量,对运动矢量非零的宏块再进一步计算AC系数能量得到其细节程度,根据细节程度的高低确定待选模式的子集,从而缩小待选模式... 详细信息

为降低编码过程中宏块进行模式选择的计算复杂度,提出了一种快速模式选择算法．该算法首先计算一个宏块的运动矢量,对运动矢量非零的宏块再进一步计算AC系数能量得到其细节程度,根据细节程度的高低确定待选模式的子集,从而缩小待选模式的数目．实验结果表明,该算法能够在保证对图像质量和码率影响很小的前提下,平均节省33%的编码时间,并获得较好的重建视频图像质量．

关键词：视频编码 H.264/AVC 模式选择分块模式计算复杂度

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

台州市城市生态足迹

引用

生态学杂志 2007年第1期26卷 83-87页

作者：常志华陆兆华马喜君梁震中国矿业大学(北京)恢复生态学研究所北京100083

城市生态足迹分析可定量反映城市人类活动对自然生态环境产生的压力和影响程度,这种方法为城市生态系统研究提供了新的思路和研究方向。本文在介绍生态足迹的理论和计算模型的基础上,以台州市为例,计算了台州市2002年的生态足迹。结果表... 详细信息

城市生态足迹分析可定量反映城市人类活动对自然生态环境产生的压力和影响程度,这种方法为城市生态系统研究提供了新的思路和研究方向。本文在介绍生态足迹的理论和计算模型的基础上,以台州市为例,计算了台州市2002年的生态足迹。结果表明,2002年台州市生态足迹为1·33084hm2·人-1,可利用的生态承载力为0·25800hm2·人-1,生态赤字为1·07284hm2·人-1,反映了台州市的生产、生活强度超过了生态系统的承载能力。因此,台州市需注重提高其资源利用效率,提倡节约型的生产和生活消费模式,减少其生态足迹,通过生态城市建设,实现城市的可持续发展。

关键词：生态足迹生态承载力可持续发展台州市

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：