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轻金属 1991年第1期 3-6,26页

作者： enrique Castells 唐颖宽

上升的总趋势 80年代出现的所有这些上升和下降只不过是临时的混乱。从长远的观点来看,它们并未严重削弱世界产量、消费量以及新产能广泛上升的趋势。 80年代后期。

关键词：铝工业拉丁美洲全世界

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2011年耶罗火山喷发前的地震活动模式

世界地震译丛 2015年第1期46卷 35-45页

作者： I.domínguez Cerdea C.del Fresno A.Gomis Moreno 欧阳兆国吴宝峰杜微黑龙江省地震局辽宁省海城地震台

在加那利群岛第一个被完全监测的火山于2011年10月10日在耶罗岛以南2km处开始喷发。这次海底火山喷发之前有各种各样的前兆信号,其中最明显的是在2011年7月开始出现的由人工拾取定位的近10 000个低震级地震组成的地震序列。这个地震活... 详细信息

在加那利群岛第一个被完全监测的火山于2011年10月10日在耶罗岛以南2km处开始喷发。这次海底火山喷发之前有各种各样的前兆信号,其中最明显的是在2011年7月开始出现的由人工拾取定位的近10 000个低震级地震组成的地震序列。这个地震活动序列揭示出从耶罗岛以北向南在10~17km之间的深度有20km的水平迁移,越向南地震的深度越深。我们应用相对定位算法（hypoDD）提高震源定位的精度。由此产生的地震分布更加紧凑,震源分布稍浅,并揭示了从北向南震源深度的明显差别。为了检查这些结果的可靠性所进行的检验给出重定位的最大不确定性为400m。此外还发现了新特征,包括在该岛中心地震活动的起源和在该岛以北在活动的最初一个月期间存在两个交替的孕震区。

关键词：在线材料互相关波形图数据统计射线参数立体图射线追踪测试 hypoDD重定位表

Initial discovery of microplastic pollution in Mnemiopsis leidyi(Ctenophora:Lobata)

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Water Biology and Security 2023年第2期2卷 43-48页

作者： Mariana Beatriz Paz Otegui Gabriela Carvalho Zamprogno enrique Ronald Yapuchura Ocaris Mercia Barcellos da Costa Institute of Biodiversity and Applied Experimental Biology Buenos Aires UniversityArgentina Laboratory of Coastal Biology and Microplastic Analysis/Laboratory of Research and Methodologies Development for Petroleum Analysis Chemistry DepartmentFederal University of Espírito SantoBrazil Universidad Tecnologica del Perú Peru Laboratory of Carbon and Ceramic Materials Department of PhysicsFederal University of Espírito SantoBrazil

The production of plastics has exponentially increased over time such that the observation of microplastics in the oceans has become a major concern given how frequently these particles and marine biota may *** can be ingested by diverse species,including invertebrates,which can lead to physical damage due to their small size and potentially chemical damage related to the ingestion of monomers,polymeric additives,or adsorbed *** study reports on the first evidence of microplastics in Mnemiopsis *** were described by type,quantified,and had their chemical composition *** total,328 samples of microplastic(MP)candidates were observed:blue fibers were the most abundant,followed by black,red,and green fibers as well as blue *** types of microplastics were chemically identified as polyurethane,unplasticized polyvinylchloride,and polyethylene ***,this study demonstrated that Mnemiopsis leidyi have the capacity to incorporate *** more studies are needed,Mnemiopsis leidyi is relatively abundant on the Atlantic coast and should be recommended for use as a bioindicator for microplastics.

关键词： Ctenophore Digested tissues Gelatinous zooplankton Polymers Raman spectroscopy Sea invertebrates

Hydrolysis of Lactose： Estimation of Kinetic Parameters Using Artificial Neural Networks

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journal of Agricultural Science and Technology(A) 2013年第10期3卷 811-818页

作者： Anahi V. Cuellas Sebastian Oddone enrique j. Mammarella Amelia C. Rubiolo lngenierla en Alimentos Universidad Nacional de Quilmes Roque Saenz Peha 380 Bernal-Buenos Aires Argentina Universidad Argentina de la Empresa-UADE Lima 775 Buenos Aires Argentina Instituto de Desarrollo Tecnol6gico para la Industria Quimica-INTEC (Conicet-UNL) Giiemes 3450 Santa Fe Argentina

The analysis of any kinetic process involves the development of a mathematical model with predictive purposes. Generally, those models have characteristic parameters that should be estimated experimentally. A typical example is Michaelis-Menten model for enzymatic hydrolysis. Even though conventional kinetic models are very useful, they are only valid under certain experimental conditions. Besides, frequently large standard errors of estimated parameters are found due to the error of experimental determinations and/or insufficient number of assays. In this work, we developed an artificial neural network （ANN） to predict the performance of enzyme reactors at various operational conditions. The net was trained with experimental data obtained under different hydrolysis conditions of lactose solutions or cheese whey and different initial concentrations of enzymes or substrates. In all the experiments, commercial 13-galactosidase either free or immobilized in a chitosan support was used. The neural network developed in this study had an average absolute relative error of less than 5% even using few experimental data, which suggests that this tool provides an accurate prediction method for lactose hydrolysis.

关键词： Cheese whey fl-galactosidase lactose hydrolysis artificial neural network.

A Serratia marcesens Strains Involved in Cotton (<i>Gossypium hirsutum</i>) Boll Infection by a Prokaryote

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Agricultural Sciences 2021年第12期12卷 1565-1578页

作者： enrique G. Medrano james P. Glover Alois A. Bell Michael j. Brewer Insect Control & Cotton Disease Research Unit United States Department of Agriculture-Agricultural Research Service (USDA-ARS) College Station TX USA Texas AgriLife Research and Extension Center Department of Entomology Texas A&M University Corpus Christi TX USA USDA-ARS Southern Insect Management Research Unit Stoneville MS USA

A boll infection caused by non-traditional cotton pathogens was first reported to occur in the southeastern U.S. Cotton Belt (year 2000) and has since spread to Texas causing significant yield losses. This study was aimed towards investigating the verde plant bug (Creontiades signatus) link between interior boll disease in Texas, USA. Using glasshouse grown bolls, bacteria recovered from locules with disease symptoms from field-grown cotton bolls caged with the piercing-sucking C. signatus were analyzed for the capacity to inflict the disease. For pathogenicity testing, spontaneously generated rifampicin resistant (Rifr) variants were utilized to track the antibiotic resistant bacterium and deter growth of endophytic and contaminating bacteria. To simulate C. signatus feeding, a needle (31 gauge) was employed to inoculate bolls at 13 - 15 days after flower bloom. Bacterial suspensions ranged from 101 - 106 colony forming units/ml. Field infection symptoms were duplicated after two weeks of bacterial exposure. Infectious strains were best categorized as Serratia marcescens based on traditional carbon utilization and enzyme production testing, and a 99% nucleotide sequence identity of 16S ribosomal DNA. Putative S. marcescens representatives isolated from rotted bolls exposed to C. signatus were shown to reproduce field infection symptoms upon inoculation into greenhouse grown fruit. Serratia spp. can inflict disease in alfalfa, cucurbits, and sunflower. The presented data are the first to definitively show that a Serratia sp. has the capacity to infect cotton.

关键词： Verde Plant Bug Opportunistic Bacterial Infections Antibiotic Selection Marker Cotton Boll Disease Piercing-Sucking Insects

Historical fluxes of metal and metalloids in an aquatic ecosystem affected by land-use change and mining activities in northwestern Mexico

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International journal of Sediment Research 2023年第5期38卷 724-738页

作者： Ochoa-Contreras Roberto jara-Marini Martín enrique Ruiz-Fernández Ana Carolina Sanchez-Cabeza joan Albert Meza-Figueroa Diana Pérez-Bernal Libia Hascibe Posgrado en Ciencias Centro de Investigación en Alimentación y Desarrollo Unidad Hermosillo 2. Centro de Investigación en Alimentación y Desarrollo Unidad Hermosillo Unidad Acad emica Mazatlán Instituto de Ciencias del Mar y Limnología Universidad Nacional Autónoma de M exico Departamento de Geología División de Ciencias Exactas y Naturales Universidad de Sonora Rosales y Encinas

Freshwater reservoirs are essential owing because of their ecological, economic, and social *** are particularly vulnerable to contamination, as of metal and metalloids, derived from anthropogenic activities like mining. The temporal variations in trace element concentrations(arsenic(As),mercury(Hg), chromium(Cr), copper(Cu), nickel(Ni), lead(Pb), and zinc(Zn)), enrichment, fluxes, and possible sources were evaluated by studying two sediment cores from the La Angostura(ANG) Reservoir(northwest Mexico), using210Pb geochronology. The enrichment factors showed from null to minor enrichment for most elements, but moderate to severe enrichment of mercury(Hg). Most trace element concentrations had a detrital origin, and notable Hg concentration increases since the past decade were associated with severe drought periods, likely resulting from wildfires. The observed sediment concentrations of As and Hg can cause adverse effects on biota in the ecosystem since they are above the probable effect level(PEL). Development of strategies for metal attenuation in this reservoir is recommended and metals should be controlled until specific ecotoxicological studies are performed.

关键词： Aquatic ecosystems 210Pb geochronology Mining activities Metals Metalloids Enrichment factors

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现在进行时--对话拉斐尔·莫内欧

城市建筑 2017年第7期14卷 97-108页

作者：拉斐尔·莫内欧 Marta Barrera Altemir javier Caro domínguez Miguel Gentil Fernández Miguel Madera Donoso 张宇(译) 哈佛大学设计研究生院 Baum Lab 不详

拉斐尔·莫内欧的办公室位于一幢理性主义至上的别墅内,它是20世纪30年代建于马德里市中心的建筑。其内部混搭着古典和宜家的定制家具。在曾用作客厅的空间里,几个员工正在工作。这栋建筑仍然像一处居所,地面看起来是原来的木制地板。... 详细信息

拉斐尔·莫内欧的办公室位于一幢理性主义至上的别墅内,它是20世纪30年代建于马德里市中心的建筑。其内部混搭着古典和宜家的定制家具。在曾用作客厅的空间里,几个员工正在工作。这栋建筑仍然像一处居所,地面看起来是原来的木制地板。所有的空间由一个长长的贯通的书架连接,随处可见的相框里都是他设计的最知名建筑的原始图纸,是我们曾在教科书中学习过的。拉斐尔·莫内欧在他办公室中的小会议室接待了我们。他在面前放了一张纸,用来做些记录,在谈话结束后,他把它折好收起。

关键词：莫内拉斐尔 architect 现在进行时建筑理论 something instance garden 建筑作品问题建筑

Workplace Risk Prevention in Public Building Projects in Mexico

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journal of Building Construction and Planning Research 2014年第4期2卷 217-226页

作者： Romel G. Solis-Carcano jose A. Gonzalez-Fajardo enrique de j. Ayora-Sosa College of Engineering Autonomous University of Yucatan Merida Mexico

The importance of risk prevention in the workplace during the construction of public infrastructure projects is particularly relevant due to the large number of workers involved as well as the frequency and severity of the accidents. The aim of this work was to conduct an exploratory study of workplace risk prevention in the construction of public work projects in Mexico. The methodology was based on a case study which included an exploration of the attitudes assumed by the civil servants working for the government agency, regarding workplace risk prevention, and the observation of construction processes in a sampling of projects. The results show that the regulations are not fully adhered to during the stages of project planning and contracting for the work. During project designing, the inclusion of criteria regarding workplace risk prevention is relegated, and during public tendering, the experience of the contractor in risk prevention and workplace safety plans are not taken into account. Consequently, as one might expect from the above, during the construction processes, it was possible to observe that only about half of the prevention requirements applicable in the workplace were actually complied with.

关键词： Prevention Workplace Risks Construction Public Works Supervision

Modelling fuel loads of understorey vegetation and forest floor components in pine stands in NW Spain

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Forest Ecosystems 2022年第6期9卷 775-789页

作者： jose A.Vega Stefano Arellano-Perez juan Gabriel Alvarez-Gonzalez Cristina Fernandez enrique jimenez Pedro Cuinas jose María Fernandez-Alonso Daniel j.Vega-Nieva Fernando Castedo-Dorado Cecilia Alonso-Rego Teresa Fontúrbel Ana Daría Ruiz-Gonzalez Centro de Investigacion Forestal de Lourizan PO Box 12736080PontevedraSpain Unidad de Gestion Ambiental y Forestal Sostenible(UXAFORES) Departamento de Ingeniería AgroforestalEscuela Politecnica Superior de IngenieríaUniversidad de Santiago de CompostelaCampus Universitario s/n27002LugoSpain Facultad de Ciencias Forestales Universidad Juarez del Estado de DurangoRío Papaloapan y Blvd.Durango s/nCol.Valle del Sur34120DurangoMexico Departamento de Ingeniería y Ciencias Agrarias Universidad de LeonCampus de Ponferrada24401PonferradaSpain

In this study,310 destructively sampled plots were used to develop two equation systems for the three main pine species in NW Spain(***;*** and ***):one for estimating loads of understorey fuel components by size and condition(live and dead)and another one for forest floor *** systems of equations were simultaneously fitted for estimating fuel loads using overstorey,understorey and forest floor variables as *** systems of equations included both the effect of pine species and the effect of understorey compositions dominated by ferns-brambles or by woody species,due to their obvious structural and physiological *** general,the goodness-of-fit statistics indicated that the estimates were reasonably robust and accurate for all of the fuel *** best results were obtained for total understorey vegetation,total forest floor and raw humus fuel loads,with more than 76%of the observed variability explained,whereas the poorest results were obtained for coarse fuel loads of understory vegetation with a 53%of observed variability *** reduce the overall costs associated with the field inventories necessary for operational use of the models,the additive systems were fitted again using only overstorey variables as potential *** relationships for fine(<6 mm)and total understorey vegetation and total forest floor fuel loads were obtained,indicating the complexity of the forest overstorey-understorey and overstorey-forest floor ***,these models explained around 52%of the observed ***,equations estimating the total understorey vegetation and the total forest floor fuel loads based only on canopy cover were *** models explained only 26%-32%of the observed variability;however,their main advantage is that although understorey vegetation in forested landscapes is largely invisible to remote sensing,canopy cover can be estimated with moderate accuracy,allowin

关键词： Area-based approach Additive equation systems Live and dead fine fuel Pinus pinaster Pinus radiata Pinus sylvestris

Label-free SARS-CoV-2 detection and classification using phase imaging with computational specificity

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Light(Science & Applications) 2021年第9期10卷 1797-1808页

作者： Neha Goswami Yuchen R.He Yu-Heng Deng Chamteut Oh Nahil Sobh enrique Valera Rashid Bashir Nahed Ismail Hyunjoon Kong Thanh H.Nguyen Catherine Best-Popescu Gabriel Popescu Department of Bioengineering University of Illinois Urbana-ChampaignUrbanaIllinois61801USA Beckman Institute of Advanced Science and Technology University of Illinois Urbana-ChampaignUrbanaIllinois61801USA Department of Electrical and Computer Engineering University of Illinois Urbana-ChampaignUrbanaIllinois61801USA Department of Chemical and Biomolecular Engineering University of Illinois at Urbana-ChampaignUrbanaIL61801USA Department of Civil and Environmental Engineering University of Illinois at Urbana-ChampaignUrbanaIL61801USA NCSA Center for Artificial Intelligence Innovation University of Illinois at Urbana-ChampaignUrbanaIL61801USA Holonyak Micro and Nanotechnology Laboratory University of Illinois at Urbana-ChampaignUrbanaIllinois61801USA Biomedical Research Center Carle Foundation Hospital509W University Ave.UrbanaIllinois61801USA Carle Illinois College of Medicine 807 South Wright St.UrbanaIllinois61801USA Mayo-Illinois Alliance for Technology Based Healthcare UrbanaIllinois61801USA Department of Pathology College of MedicineUniversity of Illinois at ChicagoChicagoILUSA

Efforts to mitigate the COVID-19 crisis revealed that fast,accurate,and scalable testing is crucial for curbing the current impact and that of future *** propose an optical method for directly imaging unlabeled viral particles and using deep learning for detection and *** ultrasensitive interferometric method was used to image four virus types with nanoscale optical path-length *** these data with fluorescence images for ground truth,we trained semantic segmentation models based on U-Net,a particular type of convolutional neural *** trained network was applied to classify the viruses from the interferometric images only,containing simultaneously SARS-CoV-2,H1N1(influenza-A virus),HAdV(adenovirus),and ZIKV(Zika virus).Remarkably,due to the nanoscale sensitivity in the input data,the neural network was able to identify SARS-CoV-2 *** other viruses with 96%*** inference time for each image is 60 ms,on a common graphic-processing *** approach of directly imaging unlabeled viral particles may provide an extremely fast test,of less than a minute per *** the imaging instrument operates on regular glass slides,we envision this method as potentially testing on patient breath *** necessary high throughput can be achieved by translating concepts from digital pathology,where a microscope can scan hundreds of slides automatically.

关键词： testing neural hundreds