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水土保持学报 2002年第6期16卷 79-81页

作者：汪明武金菊良李丽合肥工业大学土木建筑工程学院资环学院安徽合肥230009

探讨了利用实码加速遗传算法的投影寻踪新方法的泥石流危险度评价模型,并给出了相应算法、实例及同其它方法对比应用,表明了利用投影寻踪方法来评价泥石流危险度是有效可行的,且取得了理想的结果。

关键词：泥石流投影寻踪遗传算法危险度神经网络

地下滴灌对向日葵根区土壤微环境及细菌氮转化功能基因的影响

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环境科学学报 2024年第5期44卷 474-485页

作者：张家鹏李为萍池曌男吴怡萱王佳爽樊雪琴内蒙古农业大学水利与土木建筑工程学院呼和浩特010018

土壤微生物代谢功能多样性是维持土壤生态系统健康的关键.为评价地下滴灌对土壤微环境及土壤微生物代谢功能多样性的影响,本文以向日葵根区土壤微环境(土层深度0~60 cm)为研究对象,设置地表滴灌为对照(CK),地下滴灌设置10、15、2.、2. c... 详细信息

土壤微生物代谢功能多样性是维持土壤生态系统健康的关键.为评价地下滴灌对土壤微环境及土壤微生物代谢功能多样性的影响,本文以向日葵根区土壤微环境(土层深度0~60 cm)为研究对象,设置地表滴灌为对照(CK),地下滴灌设置10、15、2.、2. cm共4个滴灌带埋深处理(D10、D15、D2.和D2.),底肥施用磷酸二铵(含N18%,纯氮施入量3.0 kg·hm^(-2.),追肥施用尿素(含N46.8%,纯氮施入量为3.0 kg·hm^(-2.).结果表明,D2.和D2.处理相较于CK,对土壤EC值、含水率(WT)、硝态氮(NO_(3.^(-)-N)、铵态氮(NH_(4)^(+)-N)的含量影响显著.Pearson相关性分析表明细菌多样性与WT、pH显著相关;细菌群落结构与温度(T)、NO_(3.^(-)-N显著相关,WT、T、pH是影响细菌群落多样性的关键环境因子.相比CK处理,地下滴灌(D10、D15、D2.和D2.)会提高硝化基因NxrA、Hao、AmoA、AmoB、AmoC的相对丰度,抑制部分反硝化基因NirS和norC的相对丰度,且显著改变微生物群落结构.冗余分析表明WT是影响土壤微生物群落结构和功能基因的主导因子.综上,地下滴灌可以改善向日葵根区土壤硝化细菌生长繁殖和代谢活动的影响,其中滴灌带埋深为2. cm(D2.)相比于CK及其他埋深处理(D10、D15、D2.)更为显著降低土壤盐分、提高土壤氮素,改善土壤细菌群落结构多样性,增加硝化、异化性硝酸盐还原、反硝化的功能基因丰度,有利于维护根区土壤生态健康.

关键词：宏基因组学地下滴灌土壤理化性质微生物群落结构氮代谢

Structure-based Design, Synthesis and Anti-influenza A Virus Activities of Substituted Phenyl-coupled Heterocyclic Ethylamide Derivatives

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Chemical Research in Chinese Universities 2015年第6期31卷 942-951页

作者： wang Yang LEI Fan li Xiaolong HE Yi li Jue QIU Rui {3. Xueying HAI li {3. Yong Department of Pathology The First Affiliate Hospital College of Medicine Zhejiang University Hangzhou 310003 P. R. China Key Laboratory of Drug Targeting and Drug Delivery Systems West China School of Pharmacy Siehuan University Chengdu 610041 P. R. China School of Pharmaceutical engineering Shenyang Pharmaceutical University Shenyang 110016 P. R. China

A series of new substituted phenyl-coupled heterocyclic ethylamide derivatives was designed and synthe- sized as anti-influenza agents. In vitro anti-influenza A（A/PR/8/3. H1N1 strain） activities of these compounds were investigated and compared to those of the commercial antiviral drugs（Arbidol and Ribavirin） against the influenza. Specifically, among these twelve compounds exhibiting moderate levels of antiviral activity against influenza A, compounds 3.c and 3.d are the most effective ones, and as efficacious as the positive control Ribavirin and much more effective than Ingavirin and Arbidol, indicating that they are prospective candidates for further exploration. These results are also consistent with the docking study results in terms of the design of compounds targeting in- fluenza A via viral nucleoprotein.

关键词： Influenza virus A Nucleoprotein inhibitor Ingavirin Nucleozin Biological evaluation

基于多源数据融合技术的绿洲灌区土壤水分反演

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节水灌溉 2024年第6期 19-26页

作者：李华伟朱晓春张旭东隋喆周黎勇吴迪王叶白亮亮新疆农业大学水利与土木工程学院乌鲁木齐830052 水利部海河水利委员会科技咨询中心天津300170 沈阳农业大学水利学院沈阳110866 新疆水利水电科学研究院乌鲁木齐830049 中国灌溉排水发展中心北京100054

土壤水分是联系农业、生态和水文领域的重要环境变量,而卫星遥感是监测地表土壤水分的重要手段之一。针对微波遥感空间分辨率不足和光学遥感受云雨天气影响的问题,基于Landsat 8和MODIS光学影像、SMAP微波以及CLDAS再分析等多源数据,联... 详细信息

土壤水分是联系农业、生态和水文领域的重要环境变量,而卫星遥感是监测地表土壤水分的重要手段之一。针对微波遥感空间分辨率不足和光学遥感受云雨天气影响的问题,基于Landsat 8和MODIS光学影像、SMAP微波以及CLDAS再分析等多源数据,联合增强型自适应时空融合算法和随机森林模型对土壤水分进行定量反演,获得了绿洲灌区高时空分辨率田块尺度(3. m)土壤水分。结果表明:通过ESTARFM时空融合算法可有效获得日尺度3. m分辨率归一化植被指数(NDVI),融合后的NDVI与原始NDVI空间纹理特征一致,两者的相关系数(R)在0.85以上,均方根误差为0.05~0.08,融合效果较好。基于地表温度、NDVI、增强植被指数、叶面积指数、再分析土壤水分产品多特征参数组合下的随机森林模型反演效果最优,获得的高时空分辨率田块尺度土壤水分能够反映其时空变化,相关系数和均方根误差分别达到0.82.0.03. cm^(3./cm^(3.。该方法可为灌区灌溉面积识别、旱情监测等提供技术支撑。

关键词：土壤水分遥感反演时空融合算法随机森林数据同化多源数据

Pressure-Tunable Large Anomalous Hall Effect in Ferromagnetic Metal liMn_(6)Sn_(6)

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Chinese Physics Letters 2024年第5期41卷 69-76页

作者：高玲玲赖俊文陈栋裴翠颖王琦赵毅李昌华曹渭征吴珏霏陈宇林陈星秋孙岩 Claudia Felser 齐彦鹏 School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210China shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Max Planck Institute for Chemical Physics of Solids Dresden 01187Germany college of Physics Qingdao UniversityQingdao 266071China ShanghaiTech Laboratory for Topological Physics ShanghaiTech UniversityShanghai 201210China Department of Physics Clarendon LaboratoryUniversity of OxfordParks RoadOxford OX13PUUK School of Materials Science and engineering University of Science and Technology of ChinaShenyang 110016China Shanghai Key Laboratory of High-resolution Electron Microscopy ShanghaiTech UniversityShanghai 201210China

Recently, giant intrinsic anomalous Hall effect(AHE) has been observed in the materials with kagome ***, we systematically investigate the influence of high pressure on the AHE in the ferromagnet liMn_(6)Sn_(6) with clean Mn kagome lattice. Our in situ high-pressure Raman spectroscopy indicates that the crystal structure of liMn_(6)Sn_(6) maintains a hexagonal phase under high pressures up to 8.51 GPa. The anomalous Hall conductivity(AHC) σ_(xy)^(A) remains around 150 Ω^(-1)·cm^(-1), dominated by the intrinsic mechanism. Combined with theoretical calculations, our results indicate that the stable AHE under pressure in li Mn_(6)Sn_(6) originates from the robust electronic and magnetic structure.

关键词： structure mechanism intrinsic

Consensus on the digestive endoscopic tunnel technique

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World Journal of Gastroenterology 2019年第7期25卷 744-776页

作者： Ning-li Chai hui-Kai li En-Qiang linghu Zhao-Shen li Shu-Tian Zhang Yu Bao Wei-Gang Chen Philip WY Chiu Tong Dang Wei Gong Shu-Tang Han Jian-Yu Hao Shui-Xiang He Bing Hu1 Bing Hu2.Xiao-Jun Huang Yong-hui Huang Zhen-Dong Jin Mouen A Khashab James Lau Peng li Rui li De-liang liu Hai-Feng liu Jun liu Xiao-Gang liu zhi-Guo liu ying-Cai Ma Gui-Yong Peng Long Rong Wei-Hong Sha Pateek Sharma Jian-Qiu Sheng Shui-Sheng Shi Dong Wan Seo Si-Yu Sun Gui-Qi wang Wen wang Qi wu Hong Xu Mei-Dong Xu Ai-Ming Yang Fang Yao Hong-Gang Yu Ping-Hong Zhou Bin Zhang Xiao-Feng Zhang Ya-Qi Zhai Department of Gastroenterology and Hepatology Chinese PLA General HospitalBeijing 100853China Department of Gastroenterology Beijing Chaoyang HospitalCapital Medical UniversityBeijing 100020China Department of Gastroenterology the First Affiliated Hospital of Xi’an Jiao Tong UniversityXi’an 710000Shaanxi ProvinceChina Department of Gastroenterology West China HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina Department of Endoscopy Eastern Hepatobiliary Surgical Hospital Affiliated to Naval Medical UniversityShanghai 200438China Department of Gastroenterology the Second Hospital of Lanzhou UniversityLanzhou 730030Gansu ProvinceChina Department of Gastroenterology Peking University Third HospitalBeijing 100191China Division of Gastroenterology and Hepatology the Johns Hopkins University School of MedicineBaltimoreMD 21218United States Department of Gastrointestinal Endoscopy Prince of Wales Hospitalthe Chinese University of Hong KongHong KongChina Department of Gastroenterology the First Affiliated Hospital of Soochow UniversitySuzhou 215006Jiangsu ProvinceChina Department of Gastroenterology Second Xiangya Hospital of Central South UniversityChangsha 410000Hunan ProvinceChina Department of Gastroenterology Changhai HospitalNaval Medical UniversityShanghai 200433China Department of Gastroenterology General Hospital of Chinese People’s Armed Police ForcesBeijing 100039China Division of Gastroenterology Union Hospital of Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430022Hubei ProvinceChina Department of Gastroenterology Sichuan Provincial People’s HospitalChengdu 610072Sichuan ProvinceChina Department of Gastroenterology Xijing HospitalAir Force Medical UniversityXi’an 710032Shaanxi ProvinceChina Department of Digestion Qinghai Provincial People’s HospitalXining 810007Qinghai ProvinceChina Department of Gastroenterology Southwest HospitalArmy Medical UniversityChongqing 400038China Department of Gastroenterology Peking Univ

With the digestive endoscopic tunnel technique(DETT), many diseases that previously would have been treated by surgery are now endoscopically curable by establishing a submucosal tunnel between the mucosa and muscularis propria(MP). Through the tunnel, endoscopic diagnosis or treatment is performed for lesions in the mucosa, in the MP, and even outside the gastrointestinal(GI) *** present, the tunnel technique application range covers the following:(1)Treatment of lesions originating from the mucosal layer, e.g., endoscopic submucosal tunnel dissection for oesophageal large or circular early-stage cancer or precancerosis;(2. treatment of lesions from the MP layer, per-oral endoscopic myotomy, submucosal tunnelling endoscopic resection, etc.; and(3. diagnosis and treatment of lesions outside the GI tract, such as resection of lymph nodes and benign tumour excision in the mediastinum or abdominal cavity. With the increasing number of DETTs performed worldwide, endoscopic tunnel therapeutics, which is based on DETT, has been gradually developed and optimized. However, there is not yet an expert consensus on DETT to regulate its indications, contraindications, surgical procedure, and postoperative *** International DETT Alliance signed up this consensus to standardize the procedures of DETT. In this consensus, we describe the definition, mechanism,and significance of DETT, prevention of infection and concepts of DETTassociated complications, methods to establish a submucosal tunnel, and application of DETT for lesions in the mucosa, in the MP and outside the GI tract(indications and contraindications, procedures, pre-and postoperative treatments, effectiveness, complications and treatments, and a comparison between DETT and other operations).

关键词： Digestive endoscopic tunnel technique Endoscopic submucosal tunnel dissection Per-oral endoscopic myotomy Submucosal tunnelling endoscopic resection Gastrointestinal tract

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塔布河流域潜在蒸散量时空变化特征及成因

干旱区研究 2024年第9期41卷 1538-1547页

作者：王佳爽高晓瑜李为萍池曌男张家鹏吴怡萱内蒙古农业大学水利与土木建筑工程学院内蒙古呼和浩特010018

潜在蒸散量(ET_(0))对流域水文循环具有重要影响,分析ET_(0)时空变化规律及其与气象要素之间的响应对流域水资源管理具有重要意义。本研究基于塔布河流域及周边7个气象站1981—2.2.年逐日气象数据,利用Penman-Monteith(P-M)公式估算流域... 详细信息

潜在蒸散量(ET_(0))对流域水文循环具有重要影响,分析ET_(0)时空变化规律及其与气象要素之间的响应对流域水资源管理具有重要意义。本研究基于塔布河流域及周边7个气象站1981—2.2.年逐日气象数据,利用Penman-Monteith(P-M)公式估算流域ET_(0)并分析其时间变化规律和空间分布;采用Beven敏感性公式计算季和年尺度ET_(0)对关键气象要素的敏感系数,并探究敏感系数的变化趋势;结合气象要素多年相对变化率定量分析影响ET_(0)变化的主导因子。结果表明:(1)塔布河流域年ET_(0)以4.09 mm·(10a)-1的速率呈不显著增加趋势,多年均值102..51 mm;空间上,年ET_(0)自东南向西北逐渐增加。(2.年ET_(0)对各气象要素敏感系数绝对值大小排序为:相对湿度>最高气温>风速>日照时数>最低气温;春季、秋季和冬季对相对湿度最敏感,夏季对最高气温最敏感。(3.影响年ET_(0)变化的主要控制因子是最高气温和风速,贡献率分别为4.86%和-4.3.%;春、夏、秋、冬四季ET_(0)变化的主要控制因素分别是最高气温、风速、风速、相对湿度。最高气温的上升和相对湿度的下降是流域ET_(0)上升的主要原因。

关键词：潜在蒸散量 P-M公式敏感系数贡献率塔布河流域

亏缺灌溉对河套灌区向日葵土壤微生物群落结构多样性的影响

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排灌机械工程学报 2024年第1期42卷 71-78页

作者：赵莎李为萍冯梁池曌男张家鹏吴怡萱王佳爽内蒙古农业大学水利与土木建筑工程学院内蒙古呼和浩特010018

为明确亏缺灌溉对向日葵生育期内土壤微生物群落的影响,在河套灌区开展田间试验.以当地灌水水平为对照CK(3.0 mm),设置2.水分亏缺处理:轻度水分亏缺W1(2.0 mm)和重度水分亏缺W2.12. mm),分析亏缺灌溉对向日葵各生育期土壤表层(0~2. cm... 详细信息

为明确亏缺灌溉对向日葵生育期内土壤微生物群落的影响,在河套灌区开展田间试验.以当地灌水水平为对照CK(3.0 mm),设置2.水分亏缺处理:轻度水分亏缺W1(2.0 mm)和重度水分亏缺W2.12. mm),分析亏缺灌溉对向日葵各生育期土壤表层(0~2. cm)微生物群落和理化性质的影响,并揭示土壤微生物与理化性质的内在联系.结果表明:处理W1提高了土壤微生物多样性及土壤细菌中变形菌门、绿弯菌门、酸杆菌门、真菌中被孢霉门等优势菌门的相对丰度.与CK相比,W1的土壤pH值平均降低了0.13.温度和硝态氮质量比分别平均提高了1.44℃和14.2..Pearson相关性分析表明土壤含水率、温度、pH,EC、硝态氮是影响细菌多样性的主要因子;温度、铵态氮和硝态氮是影响真菌多样性的主要因子.冗余分析表明土壤含水率、EC和温度是影响细菌群落结构的主要因子;含水率、EC和铵态氮是影响真菌群落结构的主要因子.综上,轻度水分亏缺(W1)是适宜微生物生长的水分条件.

关键词：向日葵亏缺灌溉土壤理化性质微生物群落结构高通量测序

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低氮条件下L-色氨酸对高粱生长发育的影响

作物杂志 2024年第5期 175-180页

作者：李俊志王晓东窦爽辛宗绪吴宏生周宇飞肖继兵辽宁省旱地农林研究所辽宁朝阳122000 沈阳农业大学农学院辽宁朝阳110866

为研究低氮环境下外源色氨酸对高粱生长发育的影响,在大田试验条件下,采用裂区试验设计,以优质糯高粱品种冀酿3.为试验材料,设2.施氮水平,常规施用氮肥的1/3.量(N1)和常规氮肥用量(N2.,采用叶面喷施清水(Y1)和50 mg/L色氨酸(Y2.,于... 详细信息

为研究低氮环境下外源色氨酸对高粱生长发育的影响,在大田试验条件下,采用裂区试验设计,以优质糯高粱品种冀酿3.为试验材料,设2.施氮水平,常规施用氮肥的1/3.量(N1)和常规氮肥用量(N2.,采用叶面喷施清水(Y1)和50 mg/L色氨酸(Y2.,于高粱拔节期进行喷施,研究不同处理下高粱叶片光合特性、农艺性状及产量。结果表明,在N1和N2.平下,Y2.理能够提高高粱叶片净光合速率(P_(n))和叶绿素相对含量(SPAD值),显著增加产量、千粒重和穗粒重,其产量相较于Y1处理分别增加1.91%和6.70%。不同处理组合中,喷施外源色氨酸处理能够降低株高,增加茎粗、穗长和叶面积。因此,在低氮条件下,于高粱拔节期喷施色氨酸,有利于提高籽粒产量、千粒重、茎粗和穗长,降低株高,降低倒伏风险,有利于提高高粱SPAD值和P_(n),增加粒重,促进增产增收。

关键词：施氮量色氨酸高粱光合特性农艺性状产量

Evaluation of Impact of Pollen Grains from Bt,Bt/CpTITransgenic Cotton and Bt Corn Plants on the Growth andDevelopment of the Mulberry Silkworm,Bombyx morilinnaeus (Lepidoptera:Bombycidae)

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Agricultural Sciences in china 2002年第12期1卷 1334-1343页

作者： li Wen-dong, YE Gong-yin, wu Kong-ming, wang Xiao-qi and GUO Yu-yuan(Institute of Plant Protection , Chinese Academy of Agricultural Sciences , Beijing 100094 , P. R.{3. {2. ofPlant Protection, shenyang Agricultural University, shenyang 110161 , P.R.china Institute of AppliedEntomology, Zhejiang University , Hangzhou 3.002. , P.R.china) Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing 100094 P. R. China

The S-endotoxin genes of Bacillus thuringiensis (Bt) and proteinase inhibitor (PI) genes are two kinds of genes popularly used for developing transgenic plants resistant to insect pests. To clarify whether there is any risk concerning the effects of pollens from these transgenic crops on non-target insects with economic importance, such as the effects on the growth and development as well as cocoon quality of the silkworm, Bombyx mori linnaeus, a series of feeding experiments were conducted, using pollens from transgenic cotton or corn containing cry 1Ac, cry1A+CpTI or crylAb genes, compared with pollens from non-transgenic normal cotton and corn as well as the non-pollen treatment. In contrast to the latter ones, pollens from transgenic plants showed no significant adverse effects on larval mortality, cocoon weight, pupa weight, cocoon shell weight, pupation rate, emergence rate and fecundity of the silkworm after neonates were fed with the pollens for 72.h. In addition, no dosage effects of pollens were found. Though the duration of 1st instar larvae was prolonged in the case of feeding with transgenic pollens as compared with those of the non-pollen treatment , but they were not significantly different from those fed with pollens from non-transgenic cotton or corn. Meanwhile, the body weight of the 3.d instar molters fed with transgenic pollens was obviously different from those for non-pollen treatment, and was all significantly heavier than that of the controls. Consequently, it is considered that the adverse effect of pollens from transgenic insect-resistant cotton and corn on the growth and development of the silkworm is negligible.

关键词： Bt/CpTI transgenic cotton Bt transgenic corn Pollen Bombyx mori Growth and development