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Saturated Hydraulic Conductivity from Field Measurements Compared to Pedotransfer Functions in a Heterogeneous Arable Landscape

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Journal of Earth Science 2010年第6期21卷 923-930页

作者： Florian Winter Markus disse Institute of Hydro Sciences Universitt der Bundeswehr München

A high degree of uncertainty with regard to soil parameterisation limits the significance of physically-based simulation of distributed flood control measures, which affect the runoff generation process, such as land-use changes or differing soil tillage practices. In this study, the soil measurement data from the hillslope scale at the Scheyern research farm were compared to demonstrate this uncertainty. To account for the spatial variability of soils in the investigation area of Scheyern, different approaches were applied to estimate soil hydraulic properties and saturated hydraulic conductivity, and were compared to field measurements

关键词： hydraulic conductivity pedotransfer function hood infiltrometer uncertainty distributed flood control measures.

Stepping up after spinal cord injury:negotiating an obstacle during walking

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Neural Regeneration Research 2025年第7期20卷 1919-1929页

作者： Alain Frigon Charly g.Lecomte Department of Pharmacology-Physiology Faculty of Medicine and Health SciencesUniversitéde SherbrookeCentre de recherche du Centre Hospitalier Universitaire de SherbrookeSherbrookeQCCanada

Every day walking consists of frequent voluntary modifications in the gait pattern to negotiate *** spinal cord injury,stepping over an obstacle becomes *** over an obstacle requires sensorimotor transformations in several structures of the brain,including the parietal cortex,premotor cortex,and motor *** information and planning are transformed into motor commands,which are sent from the motor cortex to spinal neuronal circuits to alter limb trajectory,coordinate the limbs,and maintain *** spinal cord injury,bidirectional communication between the brain and spinal cord is disrupted and animals,including humans,fail to voluntarily modify limb trajectory to step over an ***,in this review,we discuss the neuromechanical control of stepping over an obstacle,why it fails after spinal cord injury,and how it recovers to a certain extent.

关键词： biomechanics locomotion neurophysiology obstacle negotiation spinal cord injury

An SPH Framework for Earthquake-Induced Liquefaction Hazard Assessment of geotechnical Structures

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 251-277页

作者： Sourabh Mhaski g.V.Ramana Department of Civil Engineering Indian Institute of Technology DelhiNew Delhi110016India

Earthquake-induced soil liquefaction poses significant risks to the stability of geotechnical structures *** understanding of the liquefaction triggering,and the post-failure large deformation behaviour is essential for designing resilient *** present study develops a Smoothed Particle Hydrodynamics(SPH)framework for earthquake-induced liquefaction hazard assessment of geotechnical *** coupled flowdeformation behaviour of soils subjected to cyclic loading is described using the PM4Sand model implemented in a three-phase,single-layer SPH framework.A staggered discretisation scheme based on the stress particle SPH approach is adopted to minimise numerical inaccuracies caused by zero-energy modes and tensile ***,non-reflecting boundary conditions for seismic analysis of semi-infinite soil domains using the SPH method are *** numerical framework is employed for the analysis of cyclic direct simple shear test,seismic analysis of a level ground site,and liquefaction-induced failure of the Lower San Fernando *** agreement for liquefaction triggering and post-failure behaviour demonstrates that the SPH framework can be utilised to assess the effect of seismic loading on field-scale geotechnical *** present study also serves as the basis for future advancements of the SPH method for applications related to earthquake geotechnical engineering.

关键词： Earthquake seismic liquefaction stress particle PM4Sand smoothed particle hydrodynamics(SPH)

Optimization of Electrical Conductivity of SA-graphene Nanocomposites Using Response Surface Methodology

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Chemical Research in Chinese Universities 2022年第2期38卷 596-602页

作者： HakanŞAHAL gülben torĞUT Erdal CANPOLAT Vocational School of Tunceli Department of Food ProcessingMunzur UniversityTunceli 62000Turkey Vocational School of Tunceli Department of Chemistry and Chemical ProcessesMunzur UniversityTunceli 62000Turkey Department of Elementary Science Education Faculty of EducationFirat UniversityElazig 23119Turkey

Synthesis and characterization of 4-{(E)-[(5-bromo-2-hydroxyphenyl)methylidene]amino}-N-carbamimidoylbenzene-1-sulfonamide(SA) and its composites with graphene(SA-gF) were performed. Compound SA and SA-gF were characterized by FTIR and 1H NMR. The gF dispersion in the composites was analyzed by means of scanning electron microscopy(SEM) for morphology. Thermal properties of SA and nanocomposites were investigated using differential thermal analysis(DTA) and thermogravimetric analysis(TgA). The optimum electrical conductivity of the new sulfonamide-based Schiff base was determined to be 1.78×10–5 S/cm at a frequency of 9923 Hz, an applied voltage of –19 V, a mass fraction of 9.38% for graphene loading using a central composite design in the response surface methodology. The significance of the selected parameters(frequency, voltage and gF amount) in the model was determined by the analysis of variance(ANOVA). The results showed that frequency and graphene loading represent important model terms and have considerable effects on the conductivity of SA.

关键词： Schiff base Sulfonamide graphene Conductivity Nanocomposite

Bioelectronic medicine in modulation of cortical spreading depolarization and beyond

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Neural Regeneration Research 2025年第2期20卷 481-482页

作者： Khaled Alok Timothy g.White Chunyan Li Department of Neurosurgery Donald and Barbara Zucker School of Medicine at Hofstra/NorthwellHempsteadNYUSA Translational Brain Research Laboratory The Feinstein Institutes for Medical ResearchManhassetNYUSA

Bioelectronic interventions,specifically trigeminal nerve st imulat ion(TNS),have attracted considerable attention in conditions where cortical spreading depolarizations(CSDs)accompanied by compromised cerebral perfusion may exacerbate neurological *** pharmacological interventions have demonstrated initial potential in addressing CSDs,a standardized treatment approach has not yet been *** objective of this perspective is to explore emerging bioelectronic methodologies for addressing CSDs,particularly emphasizing TNS,and to underscore TNS’s capacity to enhance neurovascular coupling and cerebral perfusion.

关键词： cerebral perfusion electronic

Impact of Zika virus non-structural protein mutations on hippocampal damage

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Neural Regeneration Research 2025年第8期20卷 2307-2308页

作者： Larissa M.g.Cassiano Roney S.Coimbra Neurogenômica/Imunopatologia Instituto RenéRachouFiocruzBelo HorizonteBrazil Departamento de Bioquímica e Imunologia Instituto de Ciências BiológicasUniversidade Federal de Minas GeraisBelo HorizonteBrazil

The Zika virus(ZIKV),a member of the Flaviviridae family,attracted worldwide attention for its connection to severe neurological effects,notably microcephaly in newborns,first reported during the 2015 epidemic in ***,its impact goes beyond fetal and neonatal abnormalities,also affecting the central nervous system(CNS)in both children and adults,leading to enduring cognitive and behavioral impairments.

关键词： damage fetal neonatal

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动态坐具的舒适度评价及使用动作分析

家具 2025年第1期 82-86+104页

作者：魏佳丽林珈好 Onder tor 齐蔚王郑兴胡玲玲浙江农林大学化学与材料工程学院卡斯塔莫努大学森林工程系恒林家居股份有限公司

在办公场景中，为减少久坐中身体活动缺乏所带来的不良影响，“坐具的动态支撑”作为新型技术备受关注。从坐具的结构差异和人的使用2个角度出发，采用语义差异法对3种动态坐具和1种非动态坐具作为对照组的就坐体验进行主观舒适度评价... 详细信息

在办公场景中，为减少久坐中身体活动缺乏所带来的不良影响，“坐具的动态支撑”作为新型技术备受关注。从坐具的结构差异和人的使用2个角度出发，采用语义差异法对3种动态坐具和1种非动态坐具作为对照组的就坐体验进行主观舒适度评价，探究动态坐具的结构与功能对人体舒适度的影响；通过观察记录使用动态坐具时的身体动作，采用聚类分析法分析了身体动作的方向、幅度、频率等关键要素，最终为动态坐具产品的研发和使用指南提供科学依据。结果显示椅类动态坐具比凳类动态坐具和瑜伽球的坐姿舒适度更高；动态坐具的座面前倾和不稳定显著降低坐姿舒适度；使用动态坐具时，64.7%的实验对象选择身体动作的方向为前后摆动。建议当使用者处于办公状态时，上半身保持相对稳定，下半身可进行小幅度、高频率的前后摆动，并在动态坐具研发中提高椅脚与地板接触面之间的摩擦力，增加脚轮锁定功能，从而加强坐具抓地力以便于高频活动。

关键词：动态坐具结构与功能舒适度动作要素

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Oxidative stress in N88S seipinopathy:novel insights into the mechanisms of neurodegeneration and therapeutic avenues

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Neural Regeneration Research 2023年第8期18卷 1719-1720页

作者： Vítor Costa Vitor Teixeira i3S-Instituto de Investigação e Inovação em Saúde Universidade do PortoPortoPortugal Yeast Signalling Networks IBMC-Instituto de Biologia Molecular e CelularUniversidade do PortoPortoPortugal ICBAS Instituto de Ciências Biomédicas Abel SalazarUniversidade do PortoPortoPortugal

Lipid droplets (LDs) are ubiquitous cellular orga nelles that perform functions mostly dedicated to energy homeostasis and lipid *** neutral lipid depots (triacylglycerol,sterol esters),they can be rapidly mobilized through lipase-mediated hydrolysis (lipolysis) or via lipophagy,a specific form of autophagy devoted to consumption of LDs inside the lysosome.

关键词： hydrolysis insight devoted

The study of artificial intelligence for predicting land use changes in an arid ecosystem

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Journal of geographical Sciences 2022年第4期32卷 717-734页

作者： YU Yang CAO Yiguo HOU Dongde disse Markus BRIEDEN Andreas ZHANg Haiyan YU Ruide State Key Laboratory of Desert and Oasis Ecology Xinjiang Institute of Ecology and GeographyCASUrumqi 830011China Advanced Research Institute Southwest University of Political Science&LawChongqing 401120China Chair of Hydrology and River Basin Management Technical University of MunichMunich 80333Germany Chair of Statistics and Risk Management Universitaet der Bundeswehr MuenchenNeubiberg D-85577Germa ny

During the 21 st century,artificial intelligence methods have been broadly applied in geosciences to simulate complex dynamic ecosystems,but the use of artificial intelligence(AI)methods to reproduce land-use/cover change(LUCC)in arid ecosystems remains *** paper presents a hybrid modeling approach to understand the complexity in *** logic,equation-based systems,and expert systems are combined to predict LUCC as determined by water resources and other *** driving factors of LUCC in this study include climate change,ecological flooding,groundwater conditions,and human *** increase of natural flooding was found to be effective in preventing vegetation *** are sensitive under different climate projections of RCP2.6,RCP4.5,and *** results indicate that the increase of precipitation is not able to compensate for the additional evaporation losses resulting from temperature *** results indicate that grassland,shrub,and riparian forest regions will shrink in this study *** change in grasslands has a strong negative correlation with the change in groundwater salinity,whereas forest change had a strong positive correlation with ecological *** application of artificial intelligence to study LUCC can guide land management policies and make predictions regarding land degradation.

关键词： artificial intelligence land-use/cover change fuzzy logic expert systems land degradation arid ecosystem

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