检索结果-南通市图书馆

Oil Crop Science 2024年第1期9卷 8-19页

作者： We Si Ruisheng Wang mingde wu Long Yang Guoqing Li Jing Zhang State Key Laboratory of Agricultural Microbiology and Key Laboratory of Plant Pathology of Hubei Province Huazhong Agricultural UniversityWuhan 430070China Qinghai Academy of Agriculture and Forestry Sciences Qinghai UniversityXiningQinghai Province810016China

Five stems of rapeseed with abundant black microsclerotia were collected from Huangyuan County of Qinghai Province,China,and fungal isolates were obtained from the *** were identified based on morphology,molecular features and specific PCR *** results showed that the 10 fungal isolates belonged to Verticillium longisporum lineage A1/*** of the 10 isolates(HW7-1)was tested for virulence on three species of rapeseed,including *** Zhongshuang 9,*** Qingyou 9 and *** Tayou 2 by conidia inoculation of HW7-1 on roots of young *** seedlings were inoculated with *** conidia or water *** seedlings of these treatments were transplanted in culture mix and incubated in a growth chamber(20℃).Results suggested that the control seedlings of three cultivars appeared quite healthy,while the seedlings inoculated with HW7-1 turned yellowing leaves,seedling stunting or even death after 22 days *** was re-isolated from he yellow leaves,thus fulfilling Koch's ***,compared to the control treatments,inoculation with HW7-1 caused flowering delay and seed yield reduction on Tayou 2 with production of microsclerotia on the *** our knowledge,this is the first report of *** lineage A1/D3 on rapeseed in northwestern China.

关键词： Verticillium longisporum lineage A1/D3 Virulence Rapeseed China

First report of Leptosphaeria sclerotioides on Brassica napus in Northwestern China

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Oil Crop Science 2023年第2期8卷 73-80页

作者： Mingxue Shang Xing Lyv Jing Zhang mingde wu Long Yang Qingxia Guan Guoqing Li State Key Laboratory of Agricultural Microbiology and Key Laboratory of Plant Pathology of Hubei Province Huazhong Agricultural UniversityWuhan430070China Longxi Agricultural Technology Extension Center Longxi CountyGansu ProvinceLongxi748199China

In 2020,diseased seedlings of winter oilseed rape(Brassica napus)with cankered taproots as well as abundant sclerotium-like structures in the soil surrounding the roots were found in Longxi County of Gansu province of northwestern China.A fungus with production of pycnidia was isolated from the diseased roots,and it was identified based on morphological characteristics,molecular phylogeny(ITS,LSU)and PCR detection with the specific *** fungus was identified as Leptosphaeria sclerotioides Gruyter,Aveskamp&Verkley[anamorph:Phoma sclerotioides(Preuss)ex Sacc.].Re-inoculation of isolates of P9 and P10 of *** on winter oilseed rape(*** cultivar‘Zhongshuang No.9’)in wuhan caused formation of abundant sclerotium-like structures in soil surrounding the roots,but failed to produce root cankers as those observed in Gansu possibly due to lack of long peroid of low-temperature conditioning in *** spite of this,plant height,pod number and seed yield of oilseed rape were significantly reduced in the treatment with *** P9 and P10,compared to the control *** the best of our knowledge,this is the first report of *** on *** in China and the finding broadened our understanding about the natural distribution of this psychrophilic fungus.

关键词： Leptosphaeria sclerotioides Brassica napus China

数智技术嵌入政策舆论引导:转向、风险与治理

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宁夏社会科学 2024年第3期 91-101页

作者：吴越李明德西安交通大学新闻与新媒体学院陕西西安710049 西安交通大学城市学院陕西西安710018

随着信息技术的迅猛发展,大数据、物联网、人工智能等数智技术为政策舆论引导带来前所未有的机遇,赋能政策舆论引导的转向,帮助实现从普遍性政策解读到个性化政策对话的转向;从表层信息约束到潜在情绪识别与引导的转向以及从舆情话语分... 详细信息

随着信息技术的迅猛发展,大数据、物联网、人工智能等数智技术为政策舆论引导带来前所未有的机遇,赋能政策舆论引导的转向,帮助实现从普遍性政策解读到个性化政策对话的转向;从表层信息约束到潜在情绪识别与引导的转向以及从舆情话语分析到对行为舆论研判的转向。与此同时,数智技术嵌入政策舆论场也带来了潜在风险,体现为僭越政策发布主体、偏颇政策文本、紊乱政策传播信息环境的政策舆论场信息失序风险;隐私侵犯、技术滥用、数据垄断等产生的舆情信息管理风险;技术强制性介入带来的政策舆论场意识形态扭曲风险。基于此,本文提出了将管理善治与技术智治相融合的治理策略,旨在把关技术伦理设计,保障舆论引领技术安全稳健,增强数字政府运用新技术开展舆论引导的能力。

关键词：数智技术政策舆论风险

The Penetration of Shaped Charges

同方期刊数据库博看期刊评论

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China Oil & Gas 1996年第3期3卷 164-165页

作者： wu mingde(President of China National Logging Corporation, CNPC) President of China National Logging Corporation CNPC

ＴｈｅＰｅｎｅｔｒａｔｉｏｎｏｆＳｈａｐｅｄＣｈａｒｇｅｓＷｕＭｉｎｇｄｅ（ＰｒｅｓｉｄｅｎｔｏｆＣｈｉｎａＮａｔｉｏｎａｌＬｏｇｇｉｎｇＣｏｒｐｏｒａｔｉｏｎ，ＣＮＰＣ）Ｋｅｙｗｏｒｄｓ：Ｐｅｒｆｏｒａｔｉｏｎ，Ｓ... 详细信息

ＴｈｅＰｅｎｅｔｒａｔｉｏｎｏｆＳｈａｐｅｄＣｈａｒｇｅｓＷｕＭｉｎｇｄｅ（ＰｒｅｓｉｄｅｎｔｏｆＣｈｉｎａＮａｔｉｏｎａｌＬｏｇｇｉｎｇＣｏｒｐｏｒａｔｉｏｎ，ＣＮＰＣ）Ｋｅｙｗｏｒｄｓ：Ｐｅｒｆｏｒａｔｉｏｎ，Ｓｈａｐｅｄｃｈａｒｇｅ，Ｐｅｎｅｔ...

关键词： Perforation Shaped charge Penetration depth

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四川测井射孔技术发展方向

天然气工业 1990年第4期10卷 22-26页

作者：吴铭德四川石油管理局测井公司

四川测井技术主要是在对各类碳酸盐岩以及裂缝性砂岩储层的实践中发展起来的。基于四川的地质特点和测井中已取得的进展,对近期测井仪器系列配套,急待研制试验新的仪器,测井资料的解释、方法研究和资料处理以及油管传输射孔技术、射孔... 详细信息

四川测井技术主要是在对各类碳酸盐岩以及裂缝性砂岩储层的实践中发展起来的。基于四川的地质特点和测井中已取得的进展,对近期测井仪器系列配套,急待研制试验新的仪器,测井资料的解释、方法研究和资料处理以及油管传输射孔技术、射孔弹研制等问题进行了讨论。并指出四川测井射孔技术发展的方向。

关键词：测井射孔

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圣而凡华而雅——清供图源流

南京艺术学院学报（美术与设计） 2019年第1期 138-142页

作者：吴明娣戴婷婷首都师范大学美术学院北京100037

清供图指以清雅的花草、器物为主题的图像,其源头可追溯到两汉时期。在宋以来中国传统绘画与装饰艺术中较为常见,为社会各阶层普遍接受。历经漫长的发展过程,清供图不断衍化,呈现丰富的样貌,反映着时代的变迁与观念的变化。

关键词：圣而凡华而雅清供图源流

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台湾地区大学回流教育政策与发展

教育发展研究 2009年第19期29卷 50-53,57页

作者：吴明烈吴明德国立中正大学成人及继续教育学系暨研究所国立中正大学成人及继续教育研究所

回流教育(recurrent education)正广受世界各国重视。台湾从1996年开始,颁布一系列重要政策,为大学校院回流教育提供了完善的基础与支持,促成了回流教育在大学的蓬勃发展,亦对台湾社会的发展产生了正面效应。本文旨在探讨台湾大学校院... 详细信息

回流教育(recurrent education)正广受世界各国重视。台湾从1996年开始,颁布一系列重要政策,为大学校院回流教育提供了完善的基础与支持,促成了回流教育在大学的蓬勃发展,亦对台湾社会的发展产生了正面效应。本文旨在探讨台湾大学校院回流教育政策规划与推行,进而分析其发展特色与效益,并进行未来展望。

关键词：回流教育成人教育终身学习学习社会

Mulching broad ridges with a woven polypropylene fabric increases the growth and yield of young pear trees ‘Yuluxiang' in the North China Plain

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Horticultural Plant Journal 2023年第3期9卷 414-424页

作者： Yang wu mingde Sun Songzhong Liu Institute of Forestry and Pomology Beijing Academy of Agriculture and Forestry SciencesKey Laboratory of Biology and Genetic Improvement of Horticultural Crops(North China)Ministry of Agriculture and Rural AffairsBeijing Engineering Research Center for Deciduous Fruit TreesBeijing 100093China

Unlike traditional ridging, mulching broad ridges with a woven polypropylene fabric (WPF) can reduce soil evaporation during the drought season and avoid long saturation time in the root zone of pear trees during the rainy season. In this study, field experiments were conducted from 2017 to 2020 in a pear orchard in the North China Plain to investigate the effects of mulching broad ridges (0.3 m in height and 2 m in width) with WPF on soil temperature and moisture, nitrogen leaching, vegetative and reproductive growth of young pear trees(Pyrus bretschneideri Rehd.‘Yuluxiang’). The experiments involved two treatments, namely, control (traditional no-ridge planting without mulching) and mulching broad ridges with WPF (RM treatment). The results showed that the RM treatment increased soil moisture and temperature and decreased nitrogen leaching, resulting in vigorous growth of the young pear trees. Moreover, the RM treatment increased the tree trunk cross-sectional area and height of the young pear trees by 37%and 8%in 2020, respectively. The nitrate nitrogen content at the soil layer depth of 0-30 cm was significantly higher in the RM than that in control. Furthermore, the RM treatment significantly increased the fruit yield due to larger tree size. In addition, compared with control, significantly higher fruit soluble solid content of RM treatment was detected in 2020. High precipitation (423 mm) occurred during fruit enlargement stage in 2020, RM treatment decreased the rainfall infiltration in the ridge and the soil moisture in root region, resulting in the improvement of fruit quality, compared with ***, mulching broad ridges with WPF can be implemented to increase soil moisture during drought season, soil temperature, and nitrate nitrogen content, thereby improving the growth and fruit yield of young pear trees. Additionally, it can reduce soil moisture in the root zone during the rainy season and improve the fruit quality of the trees. Finally, it

关键词： Pyrus bretschneideri Rehd Mulching broad ridges Trunk cross-sectional area Yield efficiency Soil water content Soil temperature

青海省格尔木市西山铜多金属矿成矿岩体锆石U-Pb定年及地球化学特征

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地球科学 2018年第12期43卷 4364-4374页

作者：张雨莲栗亚芝贾群子孔会磊武明德南卡俄吾中国地质调查局西安地质调查中心陕西西安710054 青海省环境地质勘查局青海西宁810007 陕西省土地工程建设集团陕西西安710075

格尔木西山铜多金属矿的成矿岩体为似斑状二长花岗岩,位于昆中断裂与昆北断裂之间的秦祁昆晚加里东造山系内,其理论研究工作十分薄弱.以岩石地球化学、同位素年代学为手段进行研究,表明岩体属于高钾钙碱性系列过铝质花岗岩类.稀土、微... 详细信息

格尔木西山铜多金属矿的成矿岩体为似斑状二长花岗岩,位于昆中断裂与昆北断裂之间的秦祁昆晚加里东造山系内,其理论研究工作十分薄弱.以岩石地球化学、同位素年代学为手段进行研究,表明岩体属于高钾钙碱性系列过铝质花岗岩类.稀土、微量元素特征为轻稀土富集型,右倾式,具强负铕异常,富集大离子亲石元素(Th、U、K),明显亏损高场强元素(如P、Ti),相对于Rb和Th明显亏损Ba.岩浆为地壳来源,具弱分离结晶花岗岩特征.在似斑状二长花岗岩中获得岩浆锆石LA-ICP-MSU-Pb加权平均年龄(267.5±3.4Ma)与谐和年龄(267.0±2.9Ma)的数据,表明岩体形成于中二叠世的同时,也约束了成矿作用的下限.矿床类型应为与花岗质岩浆活动有关的构造热液型多金属矿.

关键词：地球化学锆石U-Pb定年似斑状二长花岗岩格尔木西山东昆仑

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木霉在植物病害生物防治中的应用及作用机制

中国生物防治学报 2019年第6期35卷 966-976页

作者：尤佳琪吴明德李国庆上海市农业科学院园艺研究所上海201106 华中农业大学农业微生物国家重点实验室武汉430070

木霉是植物病害生物防治中应用和研究非常广泛的一类生防真菌。本文阐述了木霉在多种植物病害防治上的应用及防治效果,并概括了木霉在生防过程中对植物病原物的生防机制,包括竞争、重寄生、抗生作用等,以及木霉与植物互作中对植物促生... 详细信息

木霉是植物病害生物防治中应用和研究非常广泛的一类生防真菌。本文阐述了木霉在多种植物病害防治上的应用及防治效果,并概括了木霉在生防过程中对植物病原物的生防机制,包括竞争、重寄生、抗生作用等,以及木霉与植物互作中对植物促生和诱导植物抗性的机制。目前,世界上含木霉的商品化制剂已超过250种,在不同国家地区都取得了良好的防治效果,更多的优秀生防木霉菌株也在通过野生菌株筛选或遗传改良等方式开发。木霉生物防治及机制研究对推广生物防治和减少化学农药有重要意义。

关键词：木霉植物病害生物防治木霉商品化制剂