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Epidemiology of Cardiovascular Mortality in Patients under 60 Years Old in a Cardiology Department in West Africa, Dakar-Senegal
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作者 Aliou Alassane Ngaide Ngone Diaba Gaye +5 位作者 Joseph Salvador Mingou Mame Diarra Sene Momar Dioum Mouhamadou Bamba Ndiaye Alassane Mbaye Abdoul Kane 《World Journal of Cardiovascular Diseases》 CAS 2024年第8期502-514,共13页
Background: Our study aimed to examine cardiovascular mortality within the working-age population, exploring epidemiological, clinical, and paraclinical features, complications, and identifying etiological factors lin... Background: Our study aimed to examine cardiovascular mortality within the working-age population, exploring epidemiological, clinical, and paraclinical features, complications, and identifying etiological factors linked to mortality. Methods: We conducted a descriptive and analytical retrospective study from September 2019 to August 2022 at the General Hospital Idrissa POUYE in Dakar, we reviewed all the medical records of patients from 15 to 60 years old who died while admitted in the cardiology department. Data collected were socioeconomic status, clinical history, type of cardiovascular disaese, length of hospitalization, circumstances and timing of death. The data were analyzed with R. Studio version 2022.12.0 + 353 and Excel 2019, with a P-value Results: The study included 73 patients, indicating a specific mortality rate of 8.8% and a proportional mortality of 39%. Predominantly male (sex ratio 1.2), the average age was 44. Key cardiovascular risk factors identified were sedentarism (76.7%), hypertension (28.8%), and smoking (21.9%). The leading cause for consultation was dyspnea (72.6%). Notable findings included a majority of patients presenting with general condition deterioration (90%) and cardiovascular collapse upon admission (23.3%). Physical exam revealed signs of heart failure in 63%. Echocardiography showed left ventricular ejection fraction impairment (81%) and pulmonary hypertension (78%). Immediate causes of death were primarily cardiogenic shock (45.2%) and septic shock (37%). The analytical study indicates that the data most closely associated with mortality were age, socio-economic level, ischemic heart disease (p = 0.034), rheumatic valvulopathies, pulmonary embolism (p = 0.034), hypertension (HTA) (p = 0.009), smoking (p = 0.011), diabetes (p = 0.011), dyslipidemias, prolonged bedrest (p = 0.001), morbid obesity (p = 0.001), and COVID-19 infection (p = 0.017). Conclusion: The prevalence of ischemic heart diseases, pulmonary embolisms, and valvulopathies in premature mortality statistics underscores the need for enhanced cardiovascular prevention efforts. 展开更多
关键词 Mortality under 60 Years CARDIOVASCULAR DAKAR
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Frequency of Rotavirus among under 5 Children Admitted to Wad Madani Pediatric Teaching Hospital with Diarrhea, Gezira State, Sudan (2021-2022)
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作者 Rehab Ibrahim Ali Babekir Adil Mergani Babiker Bakri Yosif Mohamed Nour 《Open Journal of Medical Microbiology》 2024年第3期206-214,共9页
Rotavirus is the leading cause of acute gastroenteritis and responsible for 20% of death in children under 5 years of age approximately 111 million episodes of gastroenteritis due to Rotavirus in under 5 children, whi... Rotavirus is the leading cause of acute gastroenteritis and responsible for 20% of death in children under 5 years of age approximately 111 million episodes of gastroenteritis due to Rotavirus in under 5 children, which result in 25 million visits to clinic, 2 million hospitalization and 352,000 - 592,000 deaths. Children in the poorest countries account 82% of rotaviruses death. Diarrhea disease are major cause of death and disease among children under five years, a child on average suffers 2 to 3 attacks of diarrhea every year. Stools samples were collected from 196 children suffering from diarrhea and were tested for rotaviruses by immune chromatography test antigen (ICT-Ag), ELISA and RT PCR The data were analyzed using statistical package for the Social Sciences (SPSS). The results showed that prevalence of rotavirus was 26/196 (13.3%) by ICT Ag and ELISA and confirmed by RT-PC R. 87.8% of the children were vaccinated by Rota vaccine, 70% of their mothers not using soap for cleaning the children and thought diarrhea not infectious disease and believed it was caused by teething. In conclusion there was a decrease in prevalence of diarrhea by Rotavirus due to insertion of Rota vaccine in routine vaccination, rotavirus infection mostly occurs in poor family that not able to provide safe water and due to poor sanitation and low education of mother beside that some children suffered from malnutrition, so it recommended to incorporate ELISA as a diagnostic tool in routine diagnosis of rotavirus among children suffered from gastroenteritis. 展开更多
关键词 DIARRHEA ROTAVIRUS under 5 Laboratory Diagnosis SUDAN
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Effect of a Nutrition Education Intervention on Food Safety Knowledge, Attitudes and Practices of Mothers of Children under 5 Years in the Peri-Urban Areas of Bobo-Dioulasso: Before and after Study
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作者 Alain Hien Jérome W. Somé +4 位作者 Olivier O. Sombié Isidore Traoré Augustin N. Zeba Georges Anicet Ouedraogo Roland Nâg-Tiero Meda 《Food and Nutrition Sciences》 CAS 2024年第5期401-420,共20页
Background: This study assessed the effect of a nutrition education intervention. This intervention aimed to improve the knowledge, attitudes, and practices of mothers on food safety in the peri-urban areas of Bobo-Di... Background: This study assessed the effect of a nutrition education intervention. This intervention aimed to improve the knowledge, attitudes, and practices of mothers on food safety in the peri-urban areas of Bobo-Dioulasso in Burkina Faso. Methods: A total of 243 mothers of children under 5 years in the peri-urban of Bobo-Dioulasso were administered the FAO questionnaire for food safety knowledge, attitudes, and practices assessment during two cross-sectional surveys, before and after the intervention, in January and October 2017. The intervention included two components consisting of a theoretical phase (counselling and discussion) and cooking demonstrations implemented for ten months. To account for the before-and-after design of the study, the McNemar’s test was used to assess the effect of the intervention on food safety KAP of mothers of children under 5 years. Results: The mean age of mothers was 29 ± 6.2 years and 50.6% of them were between 20 and 29 years old. One for knowledge (cooking thoroughly with, p-value = 0.0001) and another for attitudes (perceived benefits of reheating leftovers before eating them, p-value = 0.0001), significantly increased after the intervention. In terms of food safety practices, all the indicators (cleaning of dirty surfaces, plates and utensils and storage of perishable foods) significantly increased (all p = 0.0001 Conclusion: This study provided some evidence of an effective nutrition education intervention for improving maternal KAP on food safety for their child’s feeding. 展开更多
关键词 Nutrition Education Intervention KNOWLEDGE Attitudes and Practices Food Safety Mothers of Children under 5 Years Burkina Faso
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6LoWPAN中基于Mesh-under的中继缓存与重传机制 被引量:1
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作者 刘乔寿 景晓丽 吉福生 《计算机工程》 CAS CSCD 北大核心 2017年第5期97-102,107,共7页
在基于Mesh-under路由的6Lo WPAN网络中,链路丢失的分片采用端到端的方式进行重传,从而保证数据包的可靠重组,但端到端的重传会造成较多的数据传输时延和网络能耗,降低目的端的分片重组成功率,影响网络中其他数据的有效传输。针对上述问... 在基于Mesh-under路由的6Lo WPAN网络中,链路丢失的分片采用端到端的方式进行重传,从而保证数据包的可靠重组,但端到端的重传会造成较多的数据传输时延和网络能耗,降低目的端的分片重组成功率,影响网络中其他数据的有效传输。针对上述问题,提出一种基于中间节点缓存与重传分片机制,通过中间节点缓存和管理所转发分片,目的端检测到有分片丢失,则利用中间节点已缓存的分片进行重传,从而达到提高网络性能的目的。仿真结果表明,与传统的RIF_SN,RPF_SN等机制相比,该机制能耗效用值提高36.7%,网络传输时延减少28.7%,目的端重组成功率提高34.9%,明显改善网络性能。 展开更多
关键词 适配层 Mesh-under路由协议 中继缓存 缓存管理 分片重传
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Study on "Borrowing Scenery under the Guidance of Emotion" in Chinese Landscape Architecture 被引量:1
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作者 薛晓飞 《Journal of Landscape Research》 2010年第11期73-76,共4页
One of the main theories of "borrowing scenery" which was "borrowing scenery under the guidance of emotion" was expounded from two aspects.And the second aspect was emphasized,that is,integrating s... One of the main theories of "borrowing scenery" which was "borrowing scenery under the guidance of emotion" was expounded from two aspects.And the second aspect was emphasized,that is,integrating social beauty into natural beauty so as to produce artistic beauty of landscape,and layer beauty was the main content manifested in Chinese landscape garden. 展开更多
关键词 LANDSCAPE architecture BORROWING SCENERY "Borrowing SCENERY under the GUIDANCE of emotion"
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从意象图式的角度分析介词under的隐喻意义 被引量:2
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作者 胡健 刘晓晨 《滁州学院学报》 2017年第6期47-51,56,共6页
基于英国国家语料库收集到的语料,以认知语言学中的意象图式为分析工具,旨在探索under的概念意义如何得到隐喻延伸意义,结果发现介词under的意义之间相互联系,存在从空间域到抽象域的隐喻延伸。从这个角度分析介词语义,对今后的英语教... 基于英国国家语料库收集到的语料,以认知语言学中的意象图式为分析工具,旨在探索under的概念意义如何得到隐喻延伸意义,结果发现介词under的意义之间相互联系,存在从空间域到抽象域的隐喻延伸。从这个角度分析介词语义,对今后的英语教学和学习大有裨益。 展开更多
关键词 under 意象图式 隐喻意义
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介词under的意象图式及其投射意义 被引量:9
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作者 饶萍 《四川师范学院学报(哲学社会科学版)》 2003年第3期60-62,共3页
文章旨在运用认知工具"意象图式"对介词under进行分析,在以图式表征为依据的基础上,探究under的中心图式与其说明性图式之间的关系,以及这些图式与under在抽象域的投射意义之间的联系。
关键词 意象图式 under 投射 意义延仲
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Under River稠油油藏水平井水平段长度优化
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作者 翟羽佳 朱明 +1 位作者 姚凯 李晓益 《大庆石油地质与开发》 CAS CSCD 北大核心 2017年第2期111-116,共6页
针对Under River油田目前存在的水平段蒸汽干度损失大、含水率上升快和蒸汽吞吐采油量低等问题,在分析油藏储层物性和实际生产数据的基础上,综合油藏数值模拟分析和财务净现值评价方法得到了4种不同注汽方式下的水平段最优长度值。研究... 针对Under River油田目前存在的水平段蒸汽干度损失大、含水率上升快和蒸汽吞吐采油量低等问题,在分析油藏储层物性和实际生产数据的基础上,综合油藏数值模拟分析和财务净现值评价方法得到了4种不同注汽方式下的水平段最优长度值。研究表明:采用不同的注汽方式,其最优水平段长度不同,采用均匀注汽方式具有最好的采油效果,趾端注汽方式的采油效果最差;根据现场数据和生产经验提出蒸汽损失率概念,回归了稠油油藏水平井水平段长度优化计算方程,该方程具有较高的精度和广泛的适用性。 展开更多
关键词 under RIVER 稠油油藏 蒸汽吞吐 水平井 长度优化
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Symbolic Image of Sky in Desire under the Elms
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作者 杜曼丽 石军辉 《新丝路(下旬)》 2015年第19期82-83,共2页
《榆树下的欲望》是美国剧作家尤金·奥尼尔的代表作之一。奥尼尔在《榆树下的欲望》中不仅以现实生活为蓝本,更揉入了许多寓意深刻的象征成分。本论文从象征主义的表现手法方面分析欣赏奥尼尔的著名悲剧《榆树下的欲望》,通过对作... 《榆树下的欲望》是美国剧作家尤金·奥尼尔的代表作之一。奥尼尔在《榆树下的欲望》中不仅以现实生活为蓝本,更揉入了许多寓意深刻的象征成分。本论文从象征主义的表现手法方面分析欣赏奥尼尔的著名悲剧《榆树下的欲望》,通过对作品中天空的象征意象的研究,使我们加深对奥尼尔戏剧的创作思想及其作品的主题意义的理解,同时更有利于寻找现代悲剧的创作根源。 展开更多
关键词 奥尼尔 《榆树下的欲望》 象征意象
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英、法、汉语中的“UNDER/SOUS/下面”方位隐喻对比分析
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作者 张聪义 戴聪腾 《龙岩学院学报》 2005年第4期106-108,116,共4页
隐喻不仅是一种语言现象,与人类语言的发展规律息息相关,而且更是一种认知现象,与人的思维方式和思维发展紧密相连。本文根据莱考夫和约翰逊的概念隐喻理论和意象图式理论,运用英、法、汉语语料,对基本隐喻概念衍导出有关空间走向的方... 隐喻不仅是一种语言现象,与人类语言的发展规律息息相关,而且更是一种认知现象,与人的思维方式和思维发展紧密相连。本文根据莱考夫和约翰逊的概念隐喻理论和意象图式理论,运用英、法、汉语语料,对基本隐喻概念衍导出有关空间走向的方位隐喻词语“UNDER/SOUS/下面”进行对比研究,旨在探讨中、西不同文化对该词语意义产生和拓展的理据。 展开更多
关键词 概念隐喻 空间隐喻 意象图式 under/SOUS/下面”
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A Study on Symbolic Images of land in Desire under the Elms
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作者 杜曼丽 刘寒冰 《网友世界》 2014年第17期228-229,共2页
奥尼尔在《榆树下的欲望》中不仅以现实生活为蓝本,更揉入了许多寓意深刻的象征成分。本论文从象征主义的表现手法方面分析欣赏奥尼尔的著名悲剧《榆树下的欲望》,主要对作品中土地的象征意象进行了分析研究。
关键词 奥尼尔 《榆树下的欲望》 象征意象土地
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Brief Analysis on Naturalism and Realism in Desire Under the Elms
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作者 孙德梅 《海外英语》 2019年第2期202-203,共2页
Desire Under the Elms was a drama written by Eugene O'Neill in 1924,which is called the first greatest drama in American history.Through analyzing the naturalistic features in this drama and the combination of nat... Desire Under the Elms was a drama written by Eugene O'Neill in 1924,which is called the first greatest drama in American history.Through analyzing the naturalistic features in this drama and the combination of naturalism and realism reflected in Desire Under the Elms,this article aims to help readers understand the lines and the relevant connotations better. 展开更多
关键词 Desire under the ELMS NATURALISM REALISM
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A Study on Bible Archetypes in Desire under the Elms
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作者 杜曼丽 《海外英语》 2014年第17期190-191,共2页
Desire under the Elms reveals a tragedy of spiritual and survival desire of human being. O'Neill creates many Bible archetypes in Desire under the Elms. The thesis analyzes and appreciates Desire under the Elms fr... Desire under the Elms reveals a tragedy of spiritual and survival desire of human being. O'Neill creates many Bible archetypes in Desire under the Elms. The thesis analyzes and appreciates Desire under the Elms from aspect of Bible archetype to highlight the destructive power of improper desires in Desire under the Elms. 展开更多
关键词 O’Neil Desire under the ELMS Bible ARCHETYPE
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Comparison of Undernutrition Prevalence of Children under 5 Years in China between 2002 and 2013 被引量:21
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作者 YU Dong Mei ZHAO Li Yun +12 位作者 YANG Zhen Yu CHANG Su Ying YU Wen Tao FANG Hong Yun WANG Xun YU Dan GUO Qi Ya XU Xiao Li FANG Yue Hui ZHAO Wen Hua YANG Xiao Guang DING Gang Qiang LIANG Xiao Feng 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2016年第3期165-176,共12页
Objective To describe the undernutrition status of children under 5-year in China, and study the trend between 2002 and 2013. Methods The study was based on two national surveys. Undernutrition was determined against ... Objective To describe the undernutrition status of children under 5-year in China, and study the trend between 2002 and 2013. Methods The study was based on two national surveys. Undernutrition was determined against WHO's 2006 growth standards. The prevalence in 2013 and 2002 was weighted by China sixth National Population Census (2010). The relationship between undernutrition and gender/age groups/different areas use weighted logistic regression. Results The results indicated the overall prevalence of stunting, underweight, and wasting of Chinese children under S-year was 8.1%, 2.4%, and 1.9% in 2013, respectively. The prevalence of stunting was higher for children aged 12-47 month, while underweight was higher for children aged 48-59 month. The prevalence of undernutrition was higher in rural areas than in urban areas, especially in poor rural areas. There was a decline of stunting, underweight, and wasting between 2002 and 2013 among the children, with greater reduction in rural areas than in urban areas. Conclusion The prevalence of undernutrition of children under 5-year remains high in rural areas especially in poor rural areas in China. It is urgent to take action to control undernutrition in the vulnerable areas and subgroups. 展开更多
关键词 underNUTRITION Prevelence Children under 5
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Localized salt accumulation: the main reason for cotton root length decrease during advanced growth stages under drip irrigation with mulch film in a saline soil 被引量:6
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作者 WenXuan MAI ChangYan TIAN Li LI 《Journal of Arid Land》 SCIE CSCD 2014年第3期361-370,共10页
High salinity in soil can prevent root growth of most plants. To investigate soil salinity dynamics under drip irrigation with mulch film (DI) and its effects on cotton root length, we conducted field experiments in... High salinity in soil can prevent root growth of most plants. To investigate soil salinity dynamics under drip irrigation with mulch film (DI) and its effects on cotton root length, we conducted field experiments in saline soil based on a monolith method using flooding irrigation with mulch film (FI) as a control at the Korla Experimental Station of the Xinjiang Academy of Agricultural Sciences, China in 2009 and 2010. The results showed that the total root length decreased 120 days after sowing (DAS) under DI, and was mainly centered in the 0-30 cm soil layer and at distances of 30-70 cm from the drip-lines. There was almost complete overlap in the area of root length decline and salt accumulation. In the soil depth of 0-30 cm and at distances of 30-70 cm from the drip-lines at 110 to 160 DAS in 2009 and 171 DAS in 2010, the electrical conductivity (EC) in all soil samples was at least 3 mS/cm and in some cases exceeded 5 mS/cm under DI treatment. However, EC barely exceeded 3 mS/cm and no reduction in root length was observed under FI treatment. Correlation analysis of soil EC and root length density indicated that the root length declined when the soil EC exceeded 2.8 mS/cm. The main reason for the decrease of root length in cotton under DI was localized accumulation of salinity. 展开更多
关键词 COTTON drip irrigation under mulch film flooding irrigation under mulch film root SALINITY
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Synthesis of Ce:YAG Phosphor via Homogeneous Precipitation under Microwave Irradiation 被引量:15
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作者 王勇 袁鹏 +1 位作者 徐红燕 王介强 《Journal of Rare Earths》 SCIE EI CAS CSCD 2006年第z2期183-186,共4页
Ultra-fine Ce:YAG phosphors were prepared by homogeneous precipitation under microwave irradiation method . The formation of Ce: YAG was investigated by means of XRD and DTA/TG. The purified YAG crystallized phase was... Ultra-fine Ce:YAG phosphors were prepared by homogeneous precipitation under microwave irradiation method . The formation of Ce: YAG was investigated by means of XRD and DTA/TG. The purified YAG crystallized phase was obtained at a lower temperature (1100℃). Basically spherical Ce:YAG powders were indicated from TEM images, and the size of the particles is about 80 nm. Two peaks of 436 and 473 nm can be seen from the excitation spectrum in the range of 402 -510 nm. A broad emission band located at 480 ~ 630 nm shows the phosphors prepared by this method have good emission properties. 展开更多
关键词 Ce: YAG homogeneous precipitation under microwave irradiation PHOSPHORS rare earths
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英汉方位词“under”与“下”隐喻意义对比分析——基于意象图式的视角 被引量:1
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作者 刘晓晨 胡健 《合肥学院学报(综合版)》 2019年第1期64-69,共6页
基于意象图式理论,以BNC和ToRCH2014现代汉语平衡语料库中收集到的语料为依据,旨在探析under与"下"隐喻意义间的相似与不同,结果发现,它们的隐喻意义之间密切相关,存在共性,如抽象域的隐喻延伸,人际距离是物理空间距离的隐喻... 基于意象图式理论,以BNC和ToRCH2014现代汉语平衡语料库中收集到的语料为依据,旨在探析under与"下"隐喻意义间的相似与不同,结果发现,它们的隐喻意义之间密切相关,存在共性,如抽象域的隐喻延伸,人际距离是物理空间距离的隐喻延伸等;又存在差异,如数量上,"下"的覆盖关系明显多于under。 展开更多
关键词 under 意象图式 静态意义 动态意义
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Effects of soil moisture on cotton root length density and yield under drip irrigation with plastic mulch in Aksu Oasis farmland 被引量:10
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作者 Yilihamu Yimamu 《Journal of Arid Land》 SCIE 2010年第4期243-249,共7页
Effects of soil moisture on cotton root length density (total root length per unit soil volume) and yield under drip irrigation with plastic mulch were studied through field experiments. The results indicate that spat... Effects of soil moisture on cotton root length density (total root length per unit soil volume) and yield under drip irrigation with plastic mulch were studied through field experiments. The results indicate that spatial distributions of root length density of cotton under various water treatments were basically similar. Horizontally, both root length densities of cotton in wide and narrow rows were similar, and higher than that between mulches. Vertically, root length density of cotton decreased with increasing soil depth. The distribution of root length density is different under different irrigation treatments. In conditions of over-irrigation, the root length density of cotton between mulches would increase. However, it would decrease in both the wide rows and narrow rows. The mean root length density of cotton increased with increasing irrigation water. Water stress caused the root length density to increase in lower soil layers. There is a significant correlation between root length density and yields of cotton at the flower-boll and wadding stages. The regression between irrigation amount and yield of cotton can be expressed as y = -0.0026x2+18.015x-24845 (R2 = 0.959). It showed that the irrigation volume of 3,464.4 m3/hm2 led to op-timal root length density. The yield of cotton was 6,360 .8 kg/hm2 under that amount of irrigation. 展开更多
关键词 drip irrigation under plastic mulch soil moisture COTTON root length density
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Effect of microenvironmental quantitative regulation on growth of Korean pine trees planted under secondary forest 被引量:5
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作者 CONG Jian Shen Hai-Long +2 位作者 YANG Wen-Hua FAN Shao-Hui ZHANG Qun 《Journal of Forestry Research》 SCIE CAS CSCD 2011年第2期175-181,共7页
Korean pine(Pinus koraiensis) and broadleaved mixed forest in Northeast China has been changed regressively into secondary forest with almost no conifers.Planting Korean pine trees under the canopy of secondary fore... Korean pine(Pinus koraiensis) and broadleaved mixed forest in Northeast China has been changed regressively into secondary forest with almost no conifers.Planting Korean pine trees under the canopy of secondary forest is a feasible approach for recovering Korean pine and broadleaved mixed forest.For establishing an effective growth promotion method for under-canopy planted young Korean pine trees,two stands were selected as the experiment plots,Stand A(planted in 1989) and Stand B(planted in 1982),and an experiment of microenvironment regulation was conducted relying mainly on Opening degree(K=1,K=1.5,K=2,CK) in 2004.The results were shown that the adjustment had promoted growth of diameter and height of Korean pine planted in Stand A and Stand B,and had a significant influence on the growth rate of basal diameter,diameter at breast height and height in the two growth stands.The four years periodic increment of mean diameter and height of Korean pine planted in 1989 and in 1982 after regulation in K=1 level were 63.4%(D0) and 82.7%(H),64.8%(D1.3) and 69.7%(H) higher than that of control respectively.Quantitative regulation had significant influence on specific leaf area of Korean pine planted in 1989,and the current year specific leaf area(SLA) was lager than perennial year SLA.Quality indexes of natural pruning capacity,normal form quotient and crown size was not significantly changed but shown a positive tendency.The regulation scheme of Opening degree K=1 might be proper for adjusting the microenvironment of Korean pine trees planted under the canopy of secondary forest when the Korean pine trees were in the growth period of 15 to 26 years old in the experiment region. 展开更多
关键词 Pinus koraiensis under canopy planting MICROENVIRONMENT quantitative regulation opening degree
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Mining subsidence control by solid backfilling under buildings 被引量:3
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作者 ZHA Jian-feng1, 2, 3, GUO Guang-li1, 2, FENG Wen-kai3, WANG Qiang1, 2 1. Key Laboratory for Land Environment and Disaster Monitoring of the State Bureau of Surveying and Mapping, China University of Mining and Technology, Xuzhou 221116, China 2. Jiangsu Key Laboratory of Resources and Environmental Information Engineering, China University of Mining and Technology, Xuzhou 221116, China 3. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China 《中国有色金属学会会刊:英文版》 CSCD 2011年第S3期670-674,共5页
Solid backfilling mining can reduce the buildings' damage caused by mining greatly. The reduction of subsidence value, the slow advancing speed and the subsidence caused by backfilling body compaction are the main... Solid backfilling mining can reduce the buildings' damage caused by mining greatly. The reduction of subsidence value, the slow advancing speed and the subsidence caused by backfilling body compaction are the main reasons that solid backfilling mining velocity decreases significantly. Based on the research of mechanism, some principles on subsidence control of solid backfilling mining under buildings were proposed. The equivalent mining height was designed according to the fortification criteria of buildings and their attachment structures, which enables the ground movement and deformation caused by mining to be less than the corresponding fortification criteria. 展开更多
关键词 SOLID BACKFILLING MINING SUBSIDENCE CONTROL MINING under BUILDINGS
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