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元谋干热河谷林地生态系统服务价值变化

林业科学研究 2017年第5期30卷 831-840页

作者：欧朝蓉朱清科孙永玉北京林业大学水土保持学院北京100083 西南林业大学生态旅游学院云南昆明650024 中国林业科学研究院资源昆虫研究所云南昆明650216

[目的]以元谋县为研究区,基于生态学、RS和GIS理论和方法,研究干热河谷林地利用及生态系统服务价值的变化特征,以期丰富干热河谷林地生态研究,为区域生态环境调控提供理论依据。[方法]以2008年Landsat 7ETM及2016年Landsat 8 OLI 2期遥... 详细信息

[目的]以元谋县为研究区,基于生态学、RS和GIS理论和方法,研究干热河谷林地利用及生态系统服务价值的变化特征,以期丰富干热河谷林地生态研究,为区域生态环境调控提供理论依据。[方法]以2008年Landsat 7ETM及2016年Landsat 8 OLI 2期遥感影像、国家基础地理信息系统及ASTER GDEM数字高程模型为数据源,利用ENVI和ArcGIS软件对2期遥感影像进行解译,获取林地土地利用数据,分析林地的时空特征;调整林地生态系统服务当量因子系数,计算单位面积农田食物生产功能价值及单位面积林地生态系统服务价值系数,分析林地生态系统静态价值特征及其变化;以支付能力指数、支付意愿指数和环境能力指数为参数构建林地生态系统服务动态价值调整系数,分析林地生态系统服务动态价值特征及其变化。[结果]林地主要分布在研究区南部和东部的中高山,在西部、西南部和北部及东部边缘的中高山有少许分布,在河谷坝区有零星分布;2008—2016年林地面积增长了64.24 hm^2,变化幅度达到11.42%;有90.53 km^2的林地转为非林地,有154.77 km^2非林地转为林地。林地向草地转移了73.61 km^2,草地向林地转移123.11 km^2;2016年研究区林地生态系统服务静态价值为14.97亿元,较2008年的13.44亿元提高了1.53亿元。2016年林地在研究区生态系统总静态价值的比例为56.41%,较2008年的51.73%提高了4.68%;2008年和2016年林地生态系统服务动态价值分别为4.758亿元和9.027亿元,仅为同期林地生态系统服务静态价值的35.40%和60.30%。[结论]研究区林地面积迅速增长,林地与非林地相互转换频繁,林地净增长明显;林地面积的增长提升了生态系统服务的静态价值。林地的单项生态系统服务价值中,土壤形成与保护、气体调节和生物多样性保护的价值最大,食物生产的价值最小;林地生态系统服务动态价值虽然远低于静态价值,但其变化幅度明显高于静态价值。高生态系统服务价值的林地对社会和环境调节能力的增长更为敏感。

关键词：于热河谷林地生态系统服务价值当量因子静态价值动态价值

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瓣膜置换术后应用左西孟坦的临床观察

中国现代医学杂志 2017年第9期27卷 117-120页

作者：申伟林孙荣青中国人民解放军91中心医院心胸外科重症加强护理病房河南焦作454000 郑州大学第一附属医院重症医学科河南郑州450000

目的观察左西孟坦在瓣膜置换术后应用的临床效果。方法二尖瓣置换术患者60例,随机分为常规治疗组和左西孟坦组,每组30例。术后常规治疗组给予强心、利尿等常规治疗,左西孟坦组在常规治疗组治疗基础上给予左西孟坦。比较两组患者治疗效... 详细信息

目的观察左西孟坦在瓣膜置换术后应用的临床效果。方法二尖瓣置换术患者60例,随机分为常规治疗组和左西孟坦组,每组30例。术后常规治疗组给予强心、利尿等常规治疗,左西孟坦组在常规治疗组治疗基础上给予左西孟坦。比较两组患者治疗效果及恢复情况。结果术后左西孟坦组心肌损伤反应和呼吸机辅助时间与常规治疗组比较,差异有统计学意义(P<0.05),左西孟坦组心肌损伤反应和呼吸机辅助时间减少;左西孟坦组重症加强护理病房(ICU)停留时间与常规治疗组比较,差异有统计学意义(P<0.05),左西孟坦组ICU停留时间减少。结论左西孟坦用于心脏瓣膜置换术后患者可明显改善心功能,减轻心肌损伤反应,且不良反应少,值得临床推广。

关键词：左西孟坦瓣膜置换术脑钠肽心功能

Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-qing Qiao Guo Hui Bojing sun Dongfang Hou Meidi Wang Xueqian Wu Tao Wu Dong-Sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： Cadmium sulfide

Mapping of Fertility Restoring Gene for Aegilops kotschyi Cytoplasmic Male Sterility in Wheat Using SSR Markers

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Agricultural Sciences in China 2002年第8期1卷 845-849页

作者： LIU Bao-shen, sun Qi-xin, GAO qing-rong, sun Lan-zhen, XIE Chao-jie, LI Chuan-you, NI Zhong-fu and DOU Bing-de( Agronomy Department, Shandong Agricultural University, Taian 271018, P.R.China Department of Plant Genetics and Breeding, China Agricultural University, Beijing 100094 , P. R . China ) Agronomy Department Shandong Agricultural University Taian 271018 P. R. China Department of Plant Genetics and Breeding China Agricultural University Beijing 100094 P.R.China Department of Plant Genetics and Breeding China Agricultural University Beijing 100094 P.R.China Agronomy Department Shandong Agricultural University Taian 271018 P. R. China

LK783 was found to be a good fertility restorer for K-type male sterility of wheat. Microsatel-lite markers were employed to map the major restoring gene in LK783. Maintainer and restorer DNA pools were established using the extreme sterile and fertile plants among (KJ5418A//911289/LK783)F1 population, respectively. Seventy-nine sets of SSR primers were screened for polymorphism between the two pools, 6 of which were found polymorphic. Linkage analysis showed that Xgwm11, Xgwm18, Xgwm264a and Xgwm273 were linked to the restoring gene in LK783, while Xgwm11, Xgwm18 and Xgwm273 were co-segregated. The distance between the Rf gene in LK783 and the three co-segregated markers was 6.54 ± 4.37 cM, the distance between Rf gene and Xgwm264a was 5. 71 ± 4.10 cM. The four SSR markers were located on chromosome IBS by amplifying the DNA of nulli-tetrasomics and ditelosomics of CS with the 4 sets of primers, indicating that the major restoring gene in LK783 was located on IBS, but the relative location of the gene was different from Rfv1, allelism of the two genes should be further investigated. The breeding for new fertility restorer lines of K-type cytoplasmic male sterility in wheat would be facilitated by using the four polymorphic markers.

关键词： Wheat ( Triticum aestivum) Cytoplasmic male sterility Restoring gene Molecular marker Microsatellite

Effects of Ti-and Nb-based transition element from single to multiple compound oxides and carbon-based composite additives on Mg-MgH2 hydrogen storage material

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Tungsten 2025年第1期7卷 32-49页

作者： Li-rong Xiao Chen Chen Shuo Wang Zi-Yin Dai Hideo Kimura Cui Ni Chuan-Xin Hou Xue-Qin sun Si-Jie Guo Wei Du Xiu-Bo Xie School of Environmental and Material Engineering Yantai University Bosch HUAYU Steering Systems (Yantai) Co. Ltd.Ytp/MFE University of Tennessee Knoxville Shandong Key Laboratory of Eco-Environmental Science for the Yellow River Delta Shandong University of Aeronautics

MgH2is considered as a promising hydrogen storage material for its high hydrogen storage capacity,low cost and abundant resource ***,the low kinetics and high enthalpy formation of MgH2limit its wide *** the perspective of adding catalysts to enhance the hydrogen storage properties of Mg-MgH2,this article elaborated the main catalysts based on Ti and Nb transition elements,including single oxide catalysts,binary oxides catalysts（combined with Ni,Na,Sr,V,etc.）,multiple catalysts bound to carbon,and composite catalysts with Ti and Nb elements combined with MXene ***,the main pathways of various catalysts to reduce the reaction activity and broaden the hydrogen desorption channel were also *** Ti-based catalysts can enhance the reactive sites of the matrix by forming multivalent states,while Nb-based catalysts broaden the hydrogen reaction channels by forming tiny *** improving the size structure and enhancing the grain size stability,combined with carbon materials should be the future considerations.

关键词： Catalysts Mg-based hydrogen storage alloys Solid hydrogen storage Transition metal elements

Near-infrared organic photosensitizers with aggregation-induced emission and switchable fluorescence for fungal infection therapy

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Science China Chemistry 2025年

作者： Xinzhe Yang Zixuan Huang Keke Ding Huili Yang Lirong Wang qing Xia rong Hu Guang Shi Bingjia Xu Anjun Qin School of Chemistry South China Normal University State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates Center for Aggregation-Induced Emission AIE Institute South China University of Technology Department of Urology The First Affiliated Hospital of Wannan Medical College (Yijishan Hospital of Wannan Medical College) School of Chemistry and Chemical Engineering University of South China

The development of near-infrared (NIR) photosensitizers with aggregation-induced emission (AIE) properties,switchable luminescence colors,and satisfactory photodynamic therapy (PDT) effects on the treatment of fungal infection is of great importance but very ***,two ionic organic luminogens are constructed by employing diphenylamine,diphenylacrylonitrile/1,2-diphenylethene,and methylated quinoline cation as building *** is found that the resulting compounds TCQF and TQF show apparent AIE properties and produce intense fluorescence with high photoluminescence quantum yields of up to 31.2%in the solid *** the meantime,their emission colors can be switched between red and NIR and in the NIR region by mechanical force and solvent vapor,respectively,thereby enabling remarkable and reversible mechanochromism with emission variations of up to 104 *** excitingly,TCQF and TQF can efficiently generate ROS under the illumination of white light and show excellent antimicrobial activities and satisfactory PDT *** by the unique anti-fungus properties,TCQF is employed as a biocompatible NIR photosensitizer for treating wound infection with ***,and apparent PDT effects are *** work provides a new direction for the development of multifunctional NIR materials with AIE properties.

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葛根黄酒的澄清工艺研究

食品研究与开发 2017年第2期38卷 126-129页

作者：李蓉陈清婵孙爱红缪园欣荆楚理工学院生物工程学院湖北荆门448000

采用皂土、干酪素、明胶作为单一澄清剂对葛根黄酒进行澄清试验,结果表明,不同浓度的处理效果均显著,冷藏条件下澄清效果优于室温处理。正交试验表明,复合澄清剂的澄清效果优于单一澄清剂,由2.5 g/L皂土、1.2 g/L干酪素和0.9 g/L明胶组... 详细信息

采用皂土、干酪素、明胶作为单一澄清剂对葛根黄酒进行澄清试验,结果表明,不同浓度的处理效果均显著,冷藏条件下澄清效果优于室温处理。正交试验表明,复合澄清剂的澄清效果优于单一澄清剂,由2.5 g/L皂土、1.2 g/L干酪素和0.9 g/L明胶组成的复合澄清剂在冷藏条件下处理48 h,澄清效果最好,透光率可达97.4%,澄清后酒体清亮透明、风味好。

关键词：葛根黄酒皂土干酪素明胶透光率

Lung-protective Ventilation in Patients with Brain Injury： A Multicenter Cross-sectional Study and Questionnaire Survey in China

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Chinese Medical Journal 2016年第14期129卷 1643-1651页

作者： Xu-Ying Luo Ying-Hong Hu Xiang-Yuan Cao Yan Kang Li-Ping Liu Shou-Hong Wang rong-Guo Yu Xiang-You Yu Xia Zhang Bao-Shan Li Zeng-Xiang Ma Yi-Bing Weng Heng Zhang De-Chang Chen Wei Chen Wen-Jin Chen Xiu-Mei Chen Bin Du Mei-Li Duan Jin Hu Yun-Feng Hoang Gui-Jun Jia Li-Hong Li Yu-Min Liang Bing-Yu Qin Xian-Dong Wang Jian Xiong Li-Mei Yan Zheng-Ping Yang Chen-Ming Dong Dong-Xin Wang qing-Yuan Zhan Shuang-Lin FU Lin Zhao Qi-Bing Huang Ying-Guang Xie Xiao-Bo Huang Guo-Bin Zhang Wang-Bin Xu Yuan Xu YaLing Liu He-Ling Zhao rong-qing sun Ming sun qing-Hong Cheng Xin Qu Xiao-Feng Yang Ming Xu Zhong-Hua Shi Han Chen Xuan He Yan-Lin Yang Guang-Qiang Chen Xiu-Mei sun Jian-Xin Zhou Department of Critical Care Medicine Beijing Tiantan Hospital Capital Medical University Beijing 100050 China Department of Critical Care Medicine Second Affiliated Hospital of Zhejiang University School of Medicine Hangzhou Zhejiang 310009 China Department of Critical Care Medicine General Hospital of Ningxia Medical University Yinchuan Ningxia 750004 China Department of Critical Care Medicine West China Hospital Sichuan University Chengdu Sichuan 610041 China Neurological Intensive Care Unit Beijing Tiantan Hospital Capital Medical University Beijing 100050 China Department of Critical Care Medicine Guangdong General Hospital Guangzhou Guangdong 510000 China Surgical Intensive Care Unit Fujian Province Hospital Fuzhou Fujian 350000 China Department of Critical Care Medicine First Affiliated Hospital of Xinjiang Medical University Urumqi Xinjiang 830054 China Department of Critical Care Medicine Bethune International Peace Hospital Shijiazhuang Hebei 050000 China Department of Critical Care Medicine Yuncheng Central Hospital Yuncheng Shanxi 044000 China Department of Emergency and Critical Care Medicine Cangzhou People's Hospital Cangzhou Hebei 061000 China Department of Critical Care Medicine Beijing Luhe Hospital Capital Medical University Beijing 101100 China Department of Critical Care Medicine First Hospital of China Medical University Shenyang Liaoning 110000 China Department of Critical Care Medicine Shanghai Changzheng Hospital Shanghai 200000 China Department of Critical Care Medicine Beijing Shijitan Hospital Capital Medical University Beijing 100038 China Department of Critical Care Medicine Xuanwu Hospital Capital Medical University Beijing 100053 China Department of Critical Care Medicine Miyun County Hospital Beijing 100038 China Medical Intensive Care Unit Peking Union Medical College Hospital Beijing 101500 China Department of Critical Care Medicine Beijing Friendship Hospital Capital Medical University Beijing 100050 Chin

Background： Over the years, the mechanical ventilation （MV） strategy has changed worldwide. The aim of the present study was to describe the ventilation practices, particularly lung-protective ventilation （LPV）, among brain-injured patients in China. Methods： This study was a multicenter, 1-day, cross-sectional study in 47 Intensive Care Units （ICUs） across China. Mechanically ventilated patients （18 years and older） with brain injury in a participating ICU during the time of the study, including traumatic brain injury, stroke, postoperation with intracranial tumor, hypoxic-ischemic encephalopathy, intracranial infection, and idiopathic epilepsy, were enrolled. Demographic data, primary diagnoses, indications for MV, MV modes and settings, and prognoses on the 60th day were collected. Multivariable logistic analysis was used to assess factors that might affect the use of LPV. Results： A total of 104 patients were enrolled in the present study, 87 （83.7%） of whom were identified with severe brain injury based on a Glasgow Coma Scale 〈8 points. Synchronized intermittent mandatory ventilation （SIMV） was the most frequent ventilator mode, accounting for 46.2% of the entire cohort. The median tidal volume was set to 8.0 ml/kg （interquartile range [IQR], 7.0-8.9 ml/kg） of the predicted body weight; 50 （48.1%） patients received LPV. The median positive end-expiratory pressure （PEEP） was set to 5 cmH20 （IQR, 5-5 cmH20）. No PEEP values were higher than 10 cmH20. Compared with partially mandatory ventilation, supportive and spontaneous ventilation practices were associated with LPV. There were no significant differences in mortality and MV duration between patients subjected to LPV and those were not. Conclusions： Among brain-injured patients in China, SIMV was the most frequent ventilation mode. Nearly one-half of the brain-injured patients received LPV. Patients under supportive and spontaneous ventilation were more likely to receive LPV.

关键词： Brain Injury Epidemiology Lung-protective Ventilation Mechanical Ventilation

MOFs和COFs在选择性富集及色谱分离中药活性成分中的应用进展

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分析测试学报 2025年第1期44卷 82-90页

作者：司甜甜赵薇孙启慧容蓉孙敏山东中医药大学药学院山东济南250355 济南大学化学与化工学院山东济南250022

金属有机框架材料(MOFs)和共价有机框架材料(COFs)具有超大比表面积和可调节的孔径等结构特点,可以实现目标化合物的选择性富集和分离,在中药活性成分领域表现出广泛的应用前景。该文综述了MOFs、COFs的常用制备方法,阐述了MOFs、COFs... 详细信息

金属有机框架材料(MOFs)和共价有机框架材料(COFs)具有超大比表面积和可调节的孔径等结构特点,可以实现目标化合物的选择性富集和分离,在中药活性成分领域表现出广泛的应用前景。该文综述了MOFs、COFs的常用制备方法,阐述了MOFs、COFs及其复合材料在选择性富集、色谱分离不同中药基质活性成分方面的应用,并结合网络药理学探讨了其在靶向中药活性成分方面的发展前景,为新型有机框架材料在中药有效成分领域的研究提供了思路。

关键词：金属有机框架共价有机框架中药活性成分选择性富集色谱分离