检索结果-南通市图书馆

Control Theory and Technology 2023年第4期21卷 541-554页

作者： Martin Dodek Eva Miklovičová Institute of Robotics and Cybernetics Faculty of Electrical Engineering and Information TechnologySlovak University of Technology in BratislavaIlkovičova 3Bratislava81219Slovakia

The error of single step-ahead output prediction is the information traditionally used to correct the state estimate while exploiting the new measurement of the system ***,its dynamics and statistical properties can be further studied and exploited in other *** is known that in the case of suboptimal state estimation,this output prediction error forms a correlated sequence,hence it can be effectively predicted in real *** a suboptimal scenario is typical in applications where the process noise model is not known or it is ***,the paper deals with the problems of analytical and empirical modeling,identification,and prediction of the output error of the suboptimal state estimator for the sake of improving the output prediction accuracy and ultimately the performance of the model predictive *** improvements are validated on an empirical model of type 1 diabetes within an in-silico experiment focused on glycemia prediction and implementation of the MPC-based artificial pancreas.

关键词： Suboptimal state estimation Prediction Autoregressive model Moving average model Model predictive control Diabetes mellitus Artificial pancreas

Weathering Processes on Martian Craters: Implications on Recurring Slope Lineae and the Location of Liquid Water

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Modern Hydrology 2017年第4期7卷 245-256页

作者： Pablo Garcia-Chevesich Eduardo Bendek Roberto Pizarro Rodrigo Valdes-Pineda David Gonzalez Horacio Bown Eduardo Martínez Luis Gonzalez Department of Hydrology and Atmospheric Sciences & Department of Agricultural and biosystems engineering University of Arizona Tucson USA Faculty of Forest Sciences and Nature Conservation International Hydrology Research Group University of Chile Santiago Chile International Sediment Initiative and International Hydrological Programme UNESCO Paris France Ames Research Center NASA Washington DC USA Technological Center for Environmental Hydrology University of Talca Talca Chile Faculty of Forest Sciences University of Concepción Concepción Chile

Recent attention has been put into recurring slope lineae (RSL), after the discovery that water is present in them. It is assumed that RSL are due to flowing water. However, even though that might be the case, the general characteristics of RSL as well as their seasonal and spatial distribution in Mars, and their occurrence within craters, suggest that RSL correspond to the weathering of frozen aquifers, which coincides with slope stability processes occurring in impact craters and scree slopes from Earth. In this study, we associated RSL with similar weathering processes occurring on impact craters and hydrogeological processes occurring on Earth (including ice, water, and wind erosion and natural aquifer recharge processes). We were able to create a conceptual model on how RSL develop, why are they found mostly in mid latitudes around craters, why are they present in more frequency in one side of crates in high latitudes, and why are there more RSL in the Martian southern hemisphere. Considering the whole hydrogeological processes occurring in craters that experience RSL, we were able to predict where large quantities of liquid water are most likely to be present in the red planet.

关键词： Mars Recurring Slope Lineae (RSL) Weathering Processes Craters Groundwater

通过内参对照PCR扩增分析进行火鸡体内的火鸡组织滴虫特异性的检测

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

通过内参对照PCR扩增分析进行火鸡体内的火鸡组织滴虫特异性的检测

Performance Evaluation of Collard Based Bio-Filter for Treating Fish Tank Effluent for Re-use

第15届世界禽病大会、中国畜牧兽医学会2007年学术年会

作者： Nele Bleyen Koen De Gussem Jeroen De Gussem Bruno M.Goddeeris 刘爵施蕾 Division of Gene Technology Department of biosystems Faculty of Bioscience engineering Catholic University Leuven Kasteelpark Arenberg 30 B-3001 Heverlee Belgium Alpharma Animal Health Inc. Laarstraat 16 B-2610 Antwerpen Belgium Degulab Sasstraat 10 B-8870 Izegem Belgium Division of Gene Technology Department of biosystems Faculty of Bioscience engineering Catholic University Leuven Kasteelpark Arenberg 30 B-3001 Heverlee Belgium

组织滴虫病或黑头是鹑鸡类鸟的疾病由原生动物的火鸡组织滴虫引起,特征为肝脏出现坏死灶、盲肠内壁增厚出现溃疡、有硫黄色粪便产生(McDougald,1991)。由于对于该病的传统诊断技术都比较复杂

关键词：火鸡组织滴虫病检测 PCR 内参

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Journal of Environmental Science and engineering(B) 2019年第1期8卷 28-36页

作者： Obeti Grism Lawrence Joshua Wanyama Noble Banadda Alphonse Candia Samuel George Onep Ronald Walozi Department of Agricultural Mechanization & Irrigation engineering Busitema University Tororo 236 Uganda Agricultural engineering and Appropriate Research Center National Agricultural Research Organization Kampala 7144 Uganda Department of Agricultural and biosystems engineering College of Agricultural and Environmental Sciences Makerere University Kampala 7062 Uganda Department of Agricultural and biosystems engineering Iowa State University 1340 Elings Hall Ames Iowa 50011-3270 USA

The increasing Uganda’s urban population growth has led to limited space coupled with high cost of living, thus making it difficult for the urban poor in congested areas to afford fish protein hence poor nutrition among the low income earners. Therefore this study was conducted to evaluate the performance of collard based bio-filtration system for filtering fish tank effluent for re-use in congested peri-urban areas. Field physical-chemical parameters (ammonia, nitrate, dissolved oxygen, temperature and pH) were measured at various bio-filter lengths in the effluent from both collard based and GBF (Gravel Based Bio-Filter). Differences in mean ammonia and nitrate levels at various lengths were analyzed using one-way ANOVA at p = 0.05. Ammonia levels were significantly reduced (p < 0.05) at various lengths: L0 99.1 mg/L;L1 75.8 mg/L (23.6%);L2 53.1 mg/L (46.4%);L3 25.8 mg/L (74%) and L4 6.6 mg/L (93.4%). Similarly, nitrate levels significantly reduced (p < 0.05): L0 11.8 mg/L;L1 7.2 mg/L (39.4%);L2 3.6 mg/L (69.2%);L3 1.6 mg/L (86.7%) and L4 0.1 mg/L (99.3%). Significant difference (p < 0.05) was obtained in mean ammonia and nitrate removal between collard based and gravel bio-filters. Collard based filter yielded higher ammonia and nitrate removal at L4 by 18.3% and 39.5% respectively, hence L4 is the effective length for collard based bio-filter.

关键词： Effluent bio-filter nitrifying bacteria ammonia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

微波裂解柚子皮制备活性炭的工艺研究

可再生能源 2014年第4期32卷 529-536页

作者：王宇迪陈智超 Roger Ruan 林向阳福州大学生物科学与工程学院福建福州350108 南昌大学生物质转化教育部工程研究中心江西南昌330047 Department of Bioproducts and biosystems engineering University of Minnesota St. PaulMN 55108 USA

通过将柚子皮微波裂解制得柚子皮炭,用化学活化法制备高品质的柚子皮活性炭。活化剂选用H3PO4,ZnCl2,KOH和NaOH,并对每种活化剂的炭剂比、活化温度、活化时间和浸渍时间进行考察,以碘吸附值为主要品质衡量指标。试验结果表明,最佳工艺条... 详细信息

通过将柚子皮微波裂解制得柚子皮炭,用化学活化法制备高品质的柚子皮活性炭。活化剂选用H3PO4,ZnCl2,KOH和NaOH,并对每种活化剂的炭剂比、活化温度、活化时间和浸渍时间进行考察,以碘吸附值为主要品质衡量指标。试验结果表明,最佳工艺条件:活化剂为KOH,炭剂比为1∶2,活化温度为800℃,活化时间为1 h,浸渍时间为36 h。制得的柚子皮活性炭碘吸附值为1 318.21 mg/g,亚甲基蓝吸附值为225 mg/g,得率为42.17%,灰分为4.96%,吸附性达到木质味精精制用颗粒活性炭国家一级品标准。

关键词：柚子皮活性炭微波裂解

Bacillus amyloliquefaciens BaSC33 induced M1 macrophage polarization to against Salmonella infection

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Bacillus amyloliquefaciens BaSC33 induced M1 macrophage pola...

The assessment of climatic,environmental,and socioeconomic aspects of the Brazilian Cerrado

中国畜牧兽医学会动物微生态学分会第五届第十三次全国学术研讨会

作者： Aikun Fu Qiufen Mo Xiaoqiang Mei Han Xu Li Gong Yanping Wu Shouwen Chen Weifen Li Key Laboratory of Animal Molecular Nutrition of Education of Ministry College of Animal SciencesZhejiang University Institute of Biology Westlake Institute for Advanced StudyWestlake University College of biosystems engineering and Food Science Zhejiang University Hubei Collaborative Innovation Center for Green Transformation of Bio-Resources Environmental Microbial Technology Center of Hubei ProvinceCollege of Life SciencesHubei University

Introduction Macrophages are important immune effector cells and play key roles in intestinal homeostasis and *** activated macrophages(M1) and alternatively activated macrophages(M2)represent two extreme functional states.M1 macrophages exhibit potent phagocytic and bactericidal capacity against intracellular pathogens.M2 macrophages secrete anti-inflammatory cytokines.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Ecological Processes 2023年第1期12卷 274-285页

作者： Washington Luiz Félix Correia Filho JoséFrancisco de Oliveira-Júnior Dimas de Barros Santiago Hazem Ghassan Abdo Hussein Almohamad Ahmed Abdullah Al Dughairi Carlos Antonio da Silva Junior Postgraduate Program in Environmentrics(PPGAmb) Institute of MathematicsStatisticsand Physics(IMEF)Federal University of Rio Grande(FURG)Rio GrandeRio Grande do Sul 96203-900Brazil Institute of Atmospheric Sciences(ICAT) Federal University of Alagoas(UFAL)MaceióAlagoas 57072-260Brazil Postgraduate Program in biosystems engineering(PGEB) Federal Fluminense University(UFF)NiteróiRio de Janeiro 24220-900Brazil Postgraduate Program in Meteorology Unidade Acadêmica de Ciências Atmosféricas(UACA)Federal University of Campina Grande(UFCG)Campina GrandeParaíba 58429-140Brazil Geography Department Faculty of Arts and HumanitiesTartous UniversityTartousSyria Geography Department Faculty of Arts and HumanitiesDamascus UniversityDamascusSyria Geography Department Faculty of Arts and HumanitiesTishreen UniversityLat-takiaSyria Department of Geography College of Arabic Language and Social StudiesQassim UniversityBuraydah 51452Saudi Arabia Departamento de Geografia State University of Mato Grosso(UNEMAT)SinopMato Grosso 78555-000Brazil

Background The Cerrado is the most biodiverse savanna and maintains other *** of its significance,this paper evaluated the Brazilian Cerrado’s climatic,environmental,and socioeconomic aspects using remote sensing data and spatial statistics(correlation analysis and principal components analysis—PCA).Following the measures of sample adequacy(MSA)and Kaiser–Meyer–Olkin(KMO)tests,seventeen variables were *** The MSA revealed that the dataset had a good quality(0.76),and nine variables were selected:elevation,evapotranspiration,active fires,Human Development Index(HDI),land use and land cover(LULC;shrubland and cropland/rainfed),rainfall(spring and autumn),and *** correlation matrix indicated a positive(negative)association between HDI and autumn rainfall(HDI and active fires)with a value of 0.77(-0.55).The PCA results determined which three principal components(PC)were adequate for extracting spatial patterns,accounting for 68.02%of the total variance with respective values of 38.59%,16.89%,and 12.5%.Due to economic development and agribusiness,Cerrado’s northern(central,western,and southern)areas had negative(positive)score HDI values,as shown in ***(rainfall—spring and fall)and environmental(cropland/rainfed and shrubland)aspects dominated the PC2,with negative scores in northern and western portions due to the transition zone between Amazon and Cerrado biomes caused by rainfall *** the other hand,environmental aspects(LULC-shrubland and elevation)influenced the PC3;areas with high altitudes(>500 m)received a higher *** Agricultural expansion substantially affected LULC,leading to deforestation-caused suppression of native vegetation.

关键词： Environment Agribusiness Active fire Human Development Index Land use and land cover

Bio-Filtration Technologies for Filtering Ammonia in Fish Tank Effluent for Reuse--A Review

维普期刊数据库

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Environmental Science and engineering(B) 2019年第6期8卷 205-214页

作者： Lawrence Grism Obeti Joshua Wanyama Noble Banadda Alphonse Candia Samuel Onep Ronald Walozi Andrew Ebic Department of Agricultural Mechanization&Irrigation engineering Busitema UniversityTororo 236Uganda Agricultural engineering and Appropriate Research Center National Agricultural Research OrganizationKampala 7144Uganda Department of Agricultural and biosystems engineering College of Agricultural and Environmental SciencesMakerere UniversityKampala 7062Uganda Department of Agricultural and biosystems engineering Iowa State University1340 Elings HallAmesIowa 50011-3270USA

Peri-urban fish farms with limited access to open natural water bodies draw fresh water from urban water supply and dug wells,which is unreliable and *** of fish pond effluent is also limited by high ammonia concentration(>0.3 mg/L)that renders water toxic and is stressful to *** the existence of several fish effluent treatment methods,not all may be appropriate for a particular *** review article therefore examines the various fish effluent treatment methods to aid selection of the most suitable one(s)for peri-urban *** key parameters considered in their comparison were:initial,operational and maintenance costs;ammonia removal efficiency;energy consumption and land *** effluent treatment methods are both conventional and *** a slight higher treatment efficiency and less space requirement by conventional methods,they mainly require reliable power supply for continuous running,highly skilled labor for operation and maintenance leading to high operational *** addition,their investment costs are higher than non-conventional methods,hence not widely applied in developing countries and majority have broken *** the other hand,non-conventional methods such as constructed wetlands are widely in use for treating effluent mainly due to their cost effectiveness and no or little energy *** wetlands were found most suitable bio-filtration system for treating fish effluent because they are cost effective,require less skilled labor and still have better effluent treatment though space required is slightly ***(lettuce,collards,etc.)have potential to grow in constructed wetlands thus form vegetable-based bio-filtration units which serve not only as bio-filters but also provide additional sources of nutrition and *** review indicated limited information on the appropriate size and performance of vegetable-based bio-filtration unit utilizing indigenous vegetables and rec

关键词： Ammonia peri-urban fish farming bio-filtration fish tank effluent

Obtainment of molecular markers linked to BYDV resistance of wheat by RAPD

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Science Bulletin 1996年第1期41卷 60-63页

作者：朱其洪贾旭王京兆李海健张驰庄家俊王斌 State Key Laboratory of Plant Cell and Chromosome engineering Institute of Genetics Chinese Academy of Sciences Beijing 100101 China

Wheat yellow dwarf(WYD) mused by the infection of barley yellow dwarf virus (BYDV) is the main disease of wheat. The yield loss caused by WYD has been estimated at 20％--30％。Three biosystems are associated with WYD: BYDV, vireos-transmitting aphid and wheat host. The creation of BYDV-resistant wheat lines is argued as the most efficient way to control *** some wheat lines have been reported to show toler-ance, there are few, if any, effective sources resisting to BYDV. In contrast, apparent re-sistances to BYDV have been described in many species of grass, such as Thinopyrum intermedium. Now, the BYDV-resistant genes of Thinopyrum interrnedium have been success-fully transferred to wheat through wide-cross. Using field-investigation to identify

关键词： BYDV resistance molecular marker RAPD chromosome in situ hybridization.

Grassland Science in a New Era

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Fundamental Research 2023年第2期3卷 149-150页

作者： Guiling Zhao Lingli Liu Zeng-Yu Wang Zhenong Jin Jin-Sheng He Division of Environment and Ecology Department of Life SciencesNational Natural Science Foundation of ChinaBeijing 100085China State Key Laboratory of Vegetation and Environmental Change Institute of BotanyChinese Academy of SciencesBeijing 100093China College of Grassland Science Qingdao Agricultural UniversityQingdao 266109China Department of Bioproducts and biosystems engineering University of MinnesotaMN 55455United States State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems and College of Pastoral Agriculture Science and TechnologyLanzhou UniversityLanzhou 730000China Institute of Ecology College of Urban and Environmental SciencesPeking UniversityBeijing 100871China

Grasslands are one of the major biomes on Earth,covering approximately 25%of the terrestrial *** history is deeply intertwined with grassland biomes,where we,as a natural species,first walked upright 2 million years ***,grassland ecosystems continue to play an important role in people's livelihoods by producing meat and dairy products,providing habitats for biodiversity,and delivering essential ecosystem services such as climate regulation and cultural heritage.

关键词： grassland planet habitat