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Low-Cost and Biodegradable Thermoelectric Devices Based on van der Waals Semiconductors on Paper Substrates

Energy & Environmental Materials 2024年第1期7卷 201-206页

作者： Gulsum Ersu Carmen Munuera Federico J.Mompean Daniel Vaquero Jorge Quereda João Elias F.S.Rodrigues Jose A.Alonso Eduardo Flores Jose R.Ares Isabel J.Ferrer Abdullah M.Al-Enizi Ayman Nafady Sruthi Kuriakose Joshua O.Island Andres Castellanos-gomez Materials Science Factory Instituto de Ciencia de Materiales de Madrid(ICMM-CSIC)Madrid E-28049Spain Nanotechnology Group USAL-NanolabUnivesidad de SalamancaSalamanca Junta de Castilla y León 37007Spain GISC Departamento de Física de MaterialesUniversidad Complutense de MadridMadrid E-28040Spain Departamento de Física Aplicada Centro de Investigación y Estudios AvanzadosMérida 97310Mexico MIRE Group Departamento de Física de MaterialesUniversidad Autónoma de MadridMadrid E-28049Spain Instituto Nicolás Cabrera Universidad Autónoma de MadridMadrid E-28049Spain Department of Chemistry College of ScienceKing Saud UniversityRiyadh 11451Saudi Arabia Department of Physics and Astronomy University of Nevada Las VegasLas Vegas NV 89154USA

We present a method to fabricate handcrafted thermoelectric devices on standard office paper *** devices are based on thin films of WS_(2),Te,and BP(P-type semiconductors)and TiS_(3)and TiS_(2)(N-type semiconductors),deposited by simply rubbing powder of these materials against *** thermoelectric properties of these semiconducting films revealed maximum Seebeck coefficients of(+1.32±0.27)mV K^(-1)and(-0.82±0.15)mV K^(-1)for WS_(2)and TiS_(3),***,Peltier elements were fabricated by interconnecting the P-and N-type films with graphite electrodes.A thermopower value up to 6.11 mV K^(-1)was obtained when the Peltier element were constructed with three *** findings of this work show proof-of-concept devices to illustrate the potential application of semiconducting van der Waals materials in future thermoelectric power generation as well as temperature sensing for low-cost disposable electronic devices.

关键词： paper-based electronics Seebeck effect semiconductors thermoelectrics van der Waals materials

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Long-term effects of gestational diabetes mellitus on the pancreas of female mouse offspring

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World Journal of Diabetes 2024年第4期15卷 758-768页

作者： Enriqueta Muñoz-Islas Edgar David Santiago-SanMartin Eduardo Mendoza-Sánchez Héctor Fabián Torres-Rodríguez Laura Yanneth Ramírez-Quintanilla Christopher Michael Peters Juan miguel Jiménez-Andrade Unidad Académica Multidisciplinaria Reynosa-Aztlán Universidad Autónoma de TamaulipasReynosa 88740TamaulipasMexico Department of Anesthesiology Wake Forest University School of MedicineWinston SalemNC 27101United States

BACKGROUND Prolonged fetal exposure to hyperglycemia may increase the risk of developing abnormal glucose metabolism and type-2 diabetes during childhood,adolescence,and adulthood;however,the mechanisms by which gestational diabetes mellitus(GDM)predisposes offspring to metabolic disorders remain *** To quantify the nerve axons,macrophages,and vasculature in the pancreas from adult offspring born from mouse dams with *** GDM was induced by *** of streptozotocin(STZ)in ICR mouse *** 12 wk old,fasting blood glucose levels were determined in *** 15 wk old,female offspring born from dams with and without GDM were sacrificed and pancreata were processed for *** quantified the density of sensory[calcitonin gene-related peptide(CGRP)]and tyrosine hydroxylase(TH)axons,blood vessels(endomucin),and macro-phages(CD68)in the splenic pancreas using confocal *** Offspring mice born from STZ-treated dams had similar body weight and blood glucose values compared to offspring born from vehicle-treated ***,the density of CGRP+and TH+axons,endomucin+blood vessels,and CD68+macrophages in the exocrine pancreas was significantly greater in offspring from mothers with GDM vs control ***,the microvasculature in the islets was significantly greater,but not the number of macrophages within the islets of offspring born from dams with GDM compared to control *** GDM induces neuronal,vascular,and inflammatory changes in the pancreas of adult progeny,which may partially explain the higher propensity for offspring of mothers with GDM to develop metabolic diseases.

关键词： Gestational diabetes mellitus Immunohistochemistry Confocal microscopy Pancreas Offspring

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Exercised blood plasma promotes hippocampal neurogenesis in the Alzheimer's disease rat brain

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Journal of Sport and Health Science 2024年第2期13卷 245-255页

作者： Cecilie Skarstad Norevik Aleksi M.Huuha Ragnhild N.RФsbjФrgen Linda Hildegard Bergersen Kamilla Jacobsen Rodrigo miguel-dos-Santos Liv Ryan Belma Skender Jose Bianco N.Moreira Asgeir Kobro-Flatmoen Menno P.Witter Nathan Scrimgeour Atefe R.Tari Cardiac Exercise Research Group(CERG) Department of Circulation and Medical ImagingNorwegian University of Science and Technology7491TrondheimNorway Department of Neurology and Clinical Neurophysiology St.Olavs University Hospital7030TrondheimNorway Institute of Oral Biology University of Oslo0372OsloNorway Department of Physiology Federal University of SergipeS~ao Cristov~ao49100-000SergipeBrazil Centre of Molecular Inflammation Research Department of Clinical and Molecular MedicineNorwegian University of Science and Technology7491TrondheimNorway Kavli Institute for Systems Neuroscience Centre for Neural Computationand Egil and Pauline Braathen and Fred Kavli Centre for Cortical MicrocircuitsNorwegian University of Science and Technology7030TrondheimNorway K.G.Jebsen Centre for Alzheimer’s Disease Norwegian University of Science and Technology7030TrondheimNorway

Background:Exercise training promotes brain plasticity and is associated with protection against cognitive impairment and Alzheimer’s disease(AD).These beneficial effects may be partly mediated by blood-borne *** we used an in vitro model of AD to investigate effects of blood plasma from exercise-trained donors on neuronal viability,and an in vivo rat model of AD to test whether such plasma impacts cognitive function,amyloid pathology,and ***:Mouse hippocampal neuronal cells were exposed to AD-like stress using amyloid-βand treated with plasma collected from human male donors 3 h after a single bout of high-intensity *** in vivo studies,blood was collected from exercise-trained young male Wistar rats(high-intensity intervals 5 days/week for 6 weeks).Transgenic AD rats(McGill-R-Thyl-APP)were inj ected 5 times/fortnight for 6 weeks at2 months or 5 months of age with either(a)plasma from the exercise-trained rats,(b)plasma from sedentary rats,or(c)*** function,amyloid plaque pathology,and neurogenesis were *** plasma used for the treatment was analyzed for 23 ***:Plasma from exercised donors enhanced cell viability by 44.1%(p=0.032)and reduced atrophy by 50.0%(p<0.001)in amyloid-β-treated *** vivo exercised plasma treatment did not alter cognitive function or amyloid plaque pathology but did increase hippocampal neurogenesis by~3 fold,regardless of pathological stage,when compared to saline-treated *** of 7 cytokines were significantly reduced in exercised plasma compared to sedentary ***:Our proof-of-concept study demonstrates that plasma from exercise-trained donors can protect neuronal cells in culture and promote adult hippocampal neurogenesis in the AD rat *** effect may be partly due to reduced pro-inflammatory signaling molecules in exercised plasma.

关键词： Cytokines High-intensity interval training Inflammation Neurons Plasma transfusion

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海外大型露天矿山智能化建设体系与应用实践——以拉斯邦巴斯铜矿为例

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金属矿山 2024年

作者：吴立活 miguel Canz Hermes Guevara 李国清侯杰张永芳北京科技大学土木与资源工程学院拉斯邦巴斯铜矿 2. 五矿资源有限公司

拉斯邦巴斯铜矿运用现代化信息技术构建覆盖“地质资源—计划管理—过程控制—安全保障—智能决策”全方位智能化建设框架，通过关键应用场景设计与应用，实现矿山生产运营的高效协同与智能管理。针对矿体赋存条件复杂、开采规模庞大、... 详细信息

拉斯邦巴斯铜矿运用现代化信息技术构建覆盖“地质资源—计划管理—过程控制—安全保障—智能决策”全方位智能化建设框架，通过关键应用场景设计与应用，实现矿山生产运营的高效协同与智能管理。针对矿体赋存条件复杂、开采规模庞大、作业地点分散等问题，应用矿床地质建模、三维可视化及无人机技术，实现矿山全生命周期的地质资源精细化管控，在此基础上优化开采工艺，应用精准定位及智能卡调技术，实现大规模高陡边坡的精准穿孔、控制爆破以及矿岩运输。构建了以超前预防为目标，全面覆盖人、机、环、管，与生产过程深度融合的矿山安全监测预警体系，显著提升了矿山的安全作业水平。通过云平台和数据湖技术实现多源异构数据融合，应用机器学习算法构建数据分析与决策模型，为矿山管理者科学决策提供有力支持。拉斯邦巴斯铜矿智能化建设成果对国内大型露天矿山智能化建设具有一定示范作用。

关键词：海外矿产资源大型露天矿拉斯邦巴斯铜矿智能矿山应用场景

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Litter buffet:On the use of trash bins by birds in six boreal urban settlements

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Avian Research 2023年第2期14卷 182-190页

作者： Michelle García-Arroyo miguel A.gomez-Martínez Ian MacGregor-Fors Ecosystems and Environment Research Programme Faculty of Biological and Environmental SciencesUniversity of HelsinkiNiemenkatu 73Lahti15140Finland Instituto de Biotecnología y Ecología Aplicada(INBIOTECA) Universidad VeracruzanaXalapa91090Mexico

Unintentional food resources in urban areas(street litter,food leftovers,overflowing trash bins)are dietary components of some urban-exploiter bird *** this study,we report on 13 bird species in six southern Finnish cities using urban trash bins and describe differences in their activity when provided with food resources(i.e.,bait)in different bin *** used generalized linear models(GLM)and classification and regression trees(CART)to test for associations between environmental variables and bird activity at the *** activity at the binscapes significantly differed among all cities and among types of bins and was significantly higher after placing bait in all *** with the largest opening had more activity as opposed to those with smaller openings or *** and gulls had the highest activity,with corvids usually being present before the bait was placed and gulls increasing their activity *** differences show that trash bin foraging is highly malleable and thus susceptible to management preventing its *** waste management measures could aid in reducing the number of species close to bins and their surroundings,benefiting both bird and human health.

关键词： Avian Behavior Binscape Food resources Urban ecology

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The Effectiveness of the Havriliak-Negami Model in Predicting the Master Curves of the Asphalt Blends with SBS Triblock Copolymer and Organic-Montmorillonite at Different Temperatures and Frequencies

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Journal of Materials Science and Chemical Engineering 2024年第7期12卷 23-39页

作者： María Ángeles Vargas-Hernández miguel Ángel Vargas Pedro R. García-Morán Humberto Vázquez-Torres Divisin de Ingeniera Qumica y Bioqumica TecNMTecnolgico de Estudios Superiores de Ecatepec Edo. de Mxico Mxico Facultad de Qumica Universidad Nacional Autonma de Mxico Cd. de Mxico Mxico Facultad de Ciencias Bsicas Ingeniera y Tecnologa Universidad Autnoma de Tlaxcala Tlaxcala Mxico Departamento de Fsica Universidad Autnoma Metropolitana-Iztapalapa Cd. de Mxico Mxico

The dynamic viscoelastic properties of asphalt AC-20 and its composites with Organic-Montmorillonite clay (OMMt) and SBS were modeled using the empirical Havriliak-Negami (HN) model, based on linear viscoelastic theory (LVE). The HN parameters, α, β, G0, G∞and τHN were determined by solving the HN equation across various temperatures and frequencies. The HN model successfully predicted the rheological behavior of the asphalt and its blends within the temperature range of 25˚C - 40˚C. However, deviations occurred between 40˚C - 75˚C, where the glass transition temperature Tg of the asphalt components and the SBS polymer are located, rendering the HN model ineffective for predicting the dynamic viscoelastic properties of composites containing OMMt under these conditions. Yet, the prediction error of the HN model dropped to 2.28% - 2.81% for asphalt and its mixtures at 100˚C, a temperature exceeding the Tg values of both polymer and asphalt, where the mixtures exhibited a liquid-like behavior. The exponent α and the relaxation time increased with temperature across all systems. Incorporating OMMt clay into the asphalt blends significantly enhanced the relaxation dynamics of the resulting composites.

关键词： Asphalt Blends Master Curve Linear Viscoelasticity Havriliak-Negami Model

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当代中国人群牙齿可观测特征的多样性研究

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基因组学与应用生物学 2024年第1期43卷 150-171页

作者：罗浩陈颖洁杨光睿 Kaustubh Adhikari 夏斌 Andrés Ruiz-Linares miguel Delgado 复旦大学生命科学学院现代人类学教育部重点实验室人类遗传学与人类学系上海200438 开放大学科学技术工程和数学学院数学与统计学院英国伦敦MK76AA 北京大学口腔医学院北京100086 拉普拉塔国立大学自然科学及博物馆学院人类学科阿根廷拉普拉塔1900

本研究基于当代中国人群3D牙齿模型数据,参照拉美人群进化和多样性研究联合会(consortium for the analysis of the diversity and evolution of Latin America,CANDELA)所使用的牙齿特征点标记方法,使用牙齿特征点间的欧几里得线性距离... 详细信息

本研究基于当代中国人群3D牙齿模型数据,参照拉美人群进化和多样性研究联合会(consortium for the analysis of the diversity and evolution of Latin America,CANDELA)所使用的牙齿特征点标记方法,使用牙齿特征点间的欧几里得线性距离(Euclidean linear distances,ELD)表示的牙齿表型作为牙齿可观测特征的度量,探究个体因素(年龄、性别)和群体因素(民族)对当代中国人群牙齿可观测特征多样性的影响。通过对牙齿标记特征点的典型变量分析(canonical variate analysis,CVA)、交叉验证(cross validation,CV)、主成分分析(principal component analysis,PCA)以及对牙齿表型的Pearson相关性分析和差异分析,本研究发现进化上相近的群体牙齿可观测特征往往更接近。具体来说,汉族的上颌牙齿可观测特征和壮族、苗族较为接近而不同于蒙古族的,而藏族的上、下颌牙齿可观测特征不同于维吾尔族的;南北中汉族牙齿表型的差异具有明确的方向性,下颌牙齿差异比上颌更明显;从性别角度看,男女牙齿表型差异主要体现在尖牙上,男性尖牙平均宽度和高度显著大于女性的;对不同年龄群体的差异分析表明,遗传外因素对牙齿可观测特征的影响主要体现在尖牙、上颌第一磨牙、下颌第一前磨牙上。

关键词：当代中国人群牙齿可观测特征表型差异

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一种优化开关磁阻电机换相区控制策略的高效率转矩分配函数

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电工技术学报 2024年第6期39卷 1671-1683页

作者：杨帆陈昊李晓东 miguel Pablo Aguirre Muhammad Asghar Saqib 中国矿业大学电气工程学院徐州221116 新能源电动车技术与装备中东欧国家国际联合研究中心徐州221008 江苏省高校新能源发电与电动车国际合作联合实验室徐州221008 徐州市新能源电动车技术与装备重点实验室徐州221008 澳门科技大学创新工程学院中国澳门999078 布宜诺斯艾利斯工学院电子工程系布宜诺斯艾利斯B1636 巴基斯坦工程技术大学电气工程系讷瓦布沙阿44000

转矩分配函数被广泛应用于抑制开关磁阻电机的转矩脉动。然而,输入相转矩跟踪不足或者输出相产生较大的负转矩这两种情况通常会导致电机的转矩脉动难以得到有效抑制,并降低电机的运行效率。因此,为了能够有效降低电机的转矩脉动并提高... 详细信息

转矩分配函数被广泛应用于抑制开关磁阻电机的转矩脉动。然而,输入相转矩跟踪不足或者输出相产生较大的负转矩这两种情况通常会导致电机的转矩脉动难以得到有效抑制,并降低电机的运行效率。因此,为了能够有效降低电机的转矩脉动并提高电机的效率,提出了一种新型的转矩分配函数控制策略。在提出的转矩分配函数控制策略中,电机的换相区域分为两个区域。在前一区域中,通过降低输入相转矩分配的比例,可以实现输入相实际转矩快速跟踪参考转矩,电机的转矩脉动有效降低。同时由于在输入相电感变化率较低时减少输入相分配的转矩,从而输入相的峰值电流随之降低,电机的转矩电流比提高。在后一区域中,将输出相的电流在转子对齐位置附近处减小到0,以避免产生较大的负转矩。因此,在所提出的方案下,电机的转矩脉动得到有效抑制,电机的效率也得到了提高。为了验证该方法的有效性,在一台12/8三相开关磁阻电机上进行了仿真和实验。结果表明,所提出的转矩分配函数控制策略能有效降低开关磁阻电机转矩脉动,也能有效地提高开关磁阻电机的运行效率。

关键词：开关磁阻电机转矩分配函数负转矩转矩电流比效率

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漫长的岁月卡斯凯什乡村博物馆

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室内设计与装修 2024年第4期 64-67页

作者： [葡萄牙]miguel Marcelino 西竹(编译) miguel Marcelino

位于葡萄牙奥泰罗·德·波利马(Outeiro de Polima)的Casal Saloio可谓是一座承载着丰富历史与文化底蕴的古老建筑。这座古老而朴素的乡村房屋,经过漫长岁月的沉淀和变迁,如今已被改造成一个富有历史韵味的博物馆。最初的Casal Saloio... 详细信息

位于葡萄牙奥泰罗·德·波利马(Outeiro de Polima)的Casal Saloio可谓是一座承载着丰富历史与文化底蕴的古老建筑。这座古老而朴素的乡村房屋,经过漫长岁月的沉淀和变迁,如今已被改造成一个富有历史韵味的博物馆。最初的Casal Saloio只是一个单间,仅能满足基本的居住需求。随着时间的推移,居民陆续对房屋进行了改造和扩建。

关键词：居住需求博物馆葡萄牙

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Settling,consolidation and shear strength behaviour of coal tailings slurry

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International Journal of Mining Science and Technology 2020年第6期30卷 849-857页

作者： Shriful Islam David J.Williams Marcelo llano-Serna Chenming Zhang School of Civil Engineering The University of QueenslandQueensland 4072Australia Department of Civil and Environmental Engineering Shahjalal University of Science and TechnologySylhet 3114Bangladesh Geotechnical Engineer Klohn Crippen Berger Ltd.Queensland 4101Australia

The volume change and shear strength behaviour of tailings slurry with the changes in gravimetric moisture content is important to effectively utilise the storage volume and analysis of dam failure *** testing of tailings from a slurry-like to soil-like state is a critical task,and conventional consolidation apparatus does not have the capability of doing such testing,as the tailings slurries contain high water *** tests conducted on slurries having a 25%solids concentration showed very low efficiency;final sediment was still *** intrinsic point was identified based on pore water pressure dissipation during consolidation tests in a slurry consolidometer that can define two states of the tailings ***-like and *** the slurry-like state,the volume change was greater for Slurry 2 than Slurry 1,while the inverse was observed in the soil-like *** evolution of peak vane shear strength with the changes in moisture content was almost similar for both samples and obeyed the power *** models have been developed and validated to predict the shear strength of materials at any gravimetric moisture content or void ratio.

关键词： Settling Consolidation Vane shear strength Coal tailings slurry Slurry consolidometer

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