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沙埋对两种一年生藜科植物存活及光合生理的影响

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生态学杂志 2015年第1期34卷 79-85页

作者：曲浩赵哈林周瑞莲李瑾中国科学院寒区旱区环境与工程研究所兰州730000 鲁东大学生命科学学院山东烟台264025

为了解沙埋对沙生植物存活的影响及其光合生理响应特征,比较不同藜科沙生植物耐沙埋能力及其光合响应,在内蒙古科尔沁沙地研究了沙米(Agriophyllum squarrosum)和大果虫实(Corispermum marocarpum)在不同沙埋深度下第5、10、15天的净光... 详细信息

为了解沙埋对沙生植物存活的影响及其光合生理响应特征,比较不同藜科沙生植物耐沙埋能力及其光合响应,在内蒙古科尔沁沙地研究了沙米(Agriophyllum squarrosum)和大果虫实(Corispermum marocarpum)在不同沙埋深度下第5、10、15天的净光合速率、气孔导度、蒸腾速率、水分利用效率的变化,并于植物生长末期对存活率进行了测定。结果表明:沙米较大果虫实具有较强的耐沙埋能力,其中沙米幼苗最大耐沙埋深度超过苗高10 cm,大果虫实在埋深等于其苗高时全部死亡;随沙埋深度增加,沙米和大果虫实的存活率均显著下降,但沙米的下降幅度明显小于大果虫实;沙埋后,2种植物的气孔关闭或开放程度减小,通过降低蒸腾速率和提高水分利用效率来适应沙埋胁迫;随着沙埋胁迫的加剧,2种植物的净光合速率下降,表明沙埋胁迫对植物的光合作用破坏较大;相比于大果虫实,沙米对于沙埋胁迫有着更好的光合适应,随着胁迫的时间增加,其净光合速率有所恢复。

关键词：存活率气孔导度净光合速率蒸腾速率科尔沁沙地

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Combining SOM and local minimum enclosing spheres for novelty detection

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Combining SOM and local minimum enclosing spheres for novelt...

Contour Laser Guiding for the Mechanized ＂Vallerani＂ Micro-catchment Water harvesting Systems

2009中国控制与决策会议

作者： Hong-Jie Xing,Ming-Hu ha,Xi-Zhao Wang College of Mathematics and Computer Science,Hebei University,Baoding,Hebei Province,China

＜正＞In this paper,a novelty detection method based on self-organizing map（SOM） and local minimum enclosing spheres is *** are two phases in the proposed *** the first phase,the whole training set are split into disjointed Voronoi regions by *** the second phase,several local minimum enclosing spheres are constructed upon these Voronoi *** with its related works,the proposed method demonstrates better performances on one synthetic data set and two benchmark data sets.

关键词： Self-Organizing Map Local Minimum Enclosing Spheres Novelty Detection

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Journal of Environmental Science and Engineering 2011年第10期5卷 1309-1316页

作者： I.A. Gammoh T.y. Oweis Department of Horticulture and Crop Sciences Faculty of Agriculture University of Jordan Amman 11942 Jordan International Center for Agricultural Research in the Dry Areas （ICARDA） Aleppo Syria

Mechanized construction of micro-catchments for water harvesting （WH） was successfully tested in the Badia （dry rangeland） areas in Syria and Jordan, using the ＂Vallerani＂ plow, model Delfino （50 MI/CM）, manufactured by Nardi, Italy. The plow was able to construct intermittent and continuous contour ridges, and could potentially be used to rehabilitate degraded rangelands. However, one major issue for large-scale implementation is the high cost and time required to manually identify contours for the plow to follow. Most existing auto-guiding systems, as usually used in road construction and agricultural land leveling, were expensive or impractical. The objective, therefore, was to add, adapt, and evaluate an auto-guiding system to enable a tractor to follow contours without demarcation through conventional surveying. A low-cost Contour Laser Guiding （CLG） system, with specifications that suit the contour ridging in undulating topographic conditions of dry rangelands, was chosen, adapted, mounted, and tested, under actual field conditions. The system consisted mainly of a portable laser transmitter and a tractor-mounted receiver, connected to a guidance display panel. The system was field-tested on 95 ha of land where the system capacity was determined under different terrains, slopes （1-8%）, and ridge spacings （4-12 m）. The easy adaptation and implementation of the CLG to the ＂Vallerani＂ unit tripled the system capacity, improved efficiency and precision, and substantially reduced the cost of constructing micro-catchments for WH. The system is recommended for large-scale rangeland rehabilitation projects in the dry areas, not only in West Asia, but worldwide.

关键词： Badia land degradation contour micro-catchments laser guiding Vallerani system.

Meta分析：CT、MRI对自身免疫性胰腺炎及胰腺导管腺癌的鉴别诊断

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国际医学放射学杂志 2021年第4期44卷 490-490页

作者： J.ha S.H.Choi J.H.Byun k.W.kim S.y.kim J.H.kim 孙羽

摘要目的系统评价 CT 和 MRI 对自身免疫性胰腺炎(AIP)与胰腺导管腺癌(PDAC)的鉴别诊断价值,并对两者进行比较。方法使用 Pub Med 和 EMBASE 数据库进行文献检

关键词： MRI AIP 胰腺导管腺癌鉴别诊断胰腺炎免疫性

Performance and Adaptation of the Vallerani Mechanized Water harvesting System in Degraded Badia Rangelands

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Journal of Environmental Science and Engineering 2011年第10期5卷 1370-1380页

Rainwater harvesting in micro-catchments such as contour ridges and semicircular bunds is an option for utilizing the limited rainfall, improving productivity and combating land degradation in dry rangeland areas （Badia）. However, implementation of this practice using manual labor or traditional machinery is slow, tedious and costly, and often impractical on a large scale. These limitations can be overcome using the ＂Vallerani＂ plow for quickly constructing continuous and intermittent ridges. The plow （model Delfino （50 MI/CM）, manufactured by Nardi, Italy） was tested and adapted to dry steppe （Badia） conditions in Jordan. The performance of the machine, its weaknesses and potential improvements were assessed in the 2006/07 season at three sites on 165 hectares of various terrain, slope and soil conditions. The performance parameters included effective field capacity （EFC）, machine efficiency （ME） and fuel consumption （FC）. Field tests were carried out at different tractor （134 HP） traveling speeds, pit sizes and contour spacings. Overall mean performance indicators gave an EFC of 1.2 ha/h, 51% ME and an average FC of 5.15 liter/ha. Increasing ridge spacing had a small effect on ME where, increasing traveling speed had a greater effect. A guide table was developed, relating performance parameters with ridge spacing, speed, and bund size setting. This could be a useful reference for the implementation and management of mechanized micro-catchment construction in the Badia. The system performed well in the construction of continuous ridges. However, it was unable to construct intermittent ridges at speeds over 4km/h; problems were encountered in properly staggering the bunds at successive contours.

关键词： Land degradation contour micro-catchments Vallerani system machine capacity machine efficiency Badia.

In situ sol-gel synthesis of hyaluronan derivatives bio-nanocomposite hydrogels

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Regenerative Biomaterials 2019年第5期6卷 249-258页

作者： U.D’Amora A.Ronca M.G.Raucci S.M.Dozio H.Lin y.Fan X.Zhang L.Ambrosio Institute of Polymers Composites and BiomaterialsNational Research CouncilNaplesItaly Institute of Science and Technology for Ceramics National Research CouncilFaenzaItaly School of Advanced Study“G.D’Annunzio” University of Chieti-PescaraChieti Italy National Engineering Research Center for Biomaterials Sichuan UniversityChengduChina

The main driving idea of the present study was the comparison between two different chemical modifications of hyaluronic acid(ha)followed by the development of nanocomposite hydrogels directly in situ by biomineralization of photocrosslinkable ha polymers through sol-gel *** this way,it has been possible to overcome some limitations due to classical approaches based on the physical blending of inorganic fillers into polymer *** this aim,methacrylated and maleated ha,synthesized with similar degree of substitution(DS)were compared in terms of mechanical and physico-chemical *** success of in situ biomineralization was highlighted by reflect Fourier transform infrared spectroscopy and thermogravimetric ***,mechanical characterization demonstrated the reinforcing effect of inorganic fillers evidencing a strong correlation with *** swelling behavior resulted to be correlated with filler ***,the cytotoxicity tests revealed the absence of toxic components and an increase of cell proliferation over culture time was observed,highlighting these bio-nanocomposite hyaluronan derivatives as biocompatible hydrogel with tunable properties.

关键词： hyaluronic acid derivatives photocrosslinking sol-gel nanocomposites

Fecal microbiota transplantation as novel therapy in gastroenterology:A systematic review

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World Journal of Gastroenterology 2015年第17期21卷 5359-5371页

作者： Noortje G Rossen John k Mac Donald Elisabeth M de Vries Geert R D'haens Willem M de Vos Erwin G Zoetendal Cyriel y Ponsioen Department of Gastroenterology and Hepatology Academic Medical Center Amsterdam1105 AZ AmsterdamThe Netherlands Division of Gastroenterology Robarts Clinical trialsRobarts Research Institutethe University of Western OntarioLondonCanada and Amsterdamthe NetherlandsOntario N6A 5K8Canada Departments of Bacteriology and Immunology and Veterinary Biosciences University of HelsinkiFI-00014 HelsinkiFinland Laboratory of Microbiology Wageningen University6703 HA Wageningenthe Netherlands

AIM:To study the clinical efficacy and safety of Fecal microbiota transplantation(FMT).We systematically reviewed FMT used as clinical ***:We searched MEDLINE,EMBASE,the Cochrane Library and Conference proceedings from inception to July,*** effect of FMT was calculated as the percentage of patients who achieved clinical improvement per patient category,on an intention-to-treat ***:We included 45 studies;34 on Clostridium difficile-infection(CDI),7 on inflammatory bowel disease,1 on metabolic syndrome,1 on constipation,1 on pouchitis and 1 on irritable bowel syndrome(IBS).In CDI 90% resolution of diarrhea in 33 case series(n = 867) was reported,and 94% resolution of diarrhea after repeated FMT in a randomized controlled trial(RCT)(n = 16).In ulcerative colitis(UC) remission rates of 0% to 68% were found(n = 106).In Crohn's disease(CD)(n = 6),no benefit was *** IBS,70% improvement of symptoms was found(n = 13).100% Reversal of symptoms was observed in constipation(n = 3).In pouchitis,none of the patients(n = 8) achieved *** RCT showed significant improvement of insulin sensitivity in metabolic syndrome(n = 10).Serious adverse events were ***:FMT is highly effective in CDI,and holds promise in *** for CD,chronic constipation,pouchitis and IBS data are too limited to draw *** increases insulin sensitivity in metabolic syndrome.

关键词： Fecal microbiota transplantation Microbiota Clostridium difficile infection Inflammatory boweldisease Metabolic syndrome

Landfill Site Suitability Assessment Using Geographic Information System (GIS) and Analytic Hierarchy Process (AHP) in Butuan City, Philippines

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Journal of Environmental & Earth Sciences 2023年第1期5卷 95-107页

作者： Francis Jhun T.Macalam kaleb P.Arreza Angelica T.Magpantay kristine y.Rabaño Department of Environmental Science and Technology College of Science and MathematicsUniversity of Science and Technology of Southern PhilippinesCagayan de Oro Campus9000Philippines Department of Environmental Science College of Forestry and Environmental StudiesMindanao State University9023Philippines Interdisciplinary Studies Center for Integrated Natural Resources and Environment Management College of Forestry and Natural ResourcesUniversity of the Philippines Los BañosLaguna4031Philippines School of Environmental Science and Management University of the Philippines Los BaňosLaguna4031Philippines

Landfilling is one of the most effective and responsible ways to dispose of municipal solid waste(MSW).Identifying landfill sites,however,is a challenging and complex undertaking because it depends on social,environmental,technical,economic,and legal *** study aims to map the optimal sites that were environmentally suitable for locating a landfill site in Butuan City,*** reference to the policy requirements from DENR Section I,Landfill Site Identification Criteria and Screening Guidelines of National Solid Waste Management Commission,the integration of a Geographic Information System(GIS)model builder and Analytical Hierarchy Process(AHP)has been used in this study to address the aforementioned challenges related to the landfill site suitability *** on the generated sanitary landfill suitability map,results showed that Barangay Tungao(1131.42967 ha)and Florida(518.48 ha)were able to meet and consider the three(3)main components,namely economic,environmental,and physical criteria,and are highly suitable as landfill site locations in Butuan *** is recommended that there will conduct a geotechnical evaluation,involving rigorous geological and hydrogeological assessment employing a combination of site investigation and laboratory *** addition,additional specific social,ecological,climatic,and economic factors need to be considered(*** impact on humans,flora,fauna,soil,water,air,climate,and landscape).

关键词： Geographic information system Sanitary landfill Analytic hierarchy process Butuan City Site suitability

聚乳酸/羟基磷灰石复合骨修复材料的改性及应用特征

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中国组织工程研究与临床康复 2007年第31期11卷 6244-6247页

作者：崔阳刘一黄威吉林大学第一医院脊柱外科吉林省长春市130021 吉林省第四人民医院吉林省长春市130012

目的:总结国内外对聚乳酸/羟基磷灰石复合材料的性能、改性和应用的研究现状。资料来源:应用计算机检索Medline,Elsevier Science和CNkI数据库1998-01/2007-05期间与聚乳酸/羟基磷灰石复合材料相关文章,中文检索词:"羟基磷灰石,聚乳酸/... 详细信息

目的:总结国内外对聚乳酸/羟基磷灰石复合材料的性能、改性和应用的研究现状。资料来源:应用计算机检索Medline,Elsevier Science和CNkI数据库1998-01/2007-05期间与聚乳酸/羟基磷灰石复合材料相关文章,中文检索词:"羟基磷灰石,聚乳酸/羟基磷灰石"等;英文检索词:"hydroxyapatite,polylactide/hydroxyapatite"。资料选择:对资料进行初选,选择聚乳酸/羟基磷灰石复合材料的制备、性能、改性和应用方面的文献。纳入标准:①羟基磷灰石性能及影响性能的因素。②羟基磷灰石改性研究。③PLA/ha的应用。资料提炼:粗选有几百篇关于聚乳酸/羟基磷灰石复合材料的文章,根据纳入标准,精选66篇文献,排除重复性文献,最后纳入32篇文献进行综述。资料综合:聚乳酸/羟基磷灰石复合材料是骨修复材料的典型代表,具有良好的生物相容性,羟基磷灰石已经做了大量的改性研究,提高了复合材料的力学性能和热稳定性。聚乳酸/羟基磷灰石复合材料在生物医学领域的应用主要包括以下3个方面:①骨科固定材料。②组织工程支架材料。③临床上已被广泛应用于组织工程中骨和软骨组织的构建和再生。结论:聚乳酸/羟基磷灰石复合材料已在生物医学领域得到广泛应用,是一种很有发展潜力的骨修复材料。

关键词：聚乳酸羟基磷灰石改性骨修复

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