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Magnetic field assisted fluidization:A modified Richardson-Zaki equation

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China Particuology 2007年第1期5卷 61-70页

作者： jose Manuel Valverde Antonio Castellanos Faculty of Physics Universidad de Sevilla Avenida Reina Mercedes s/n 41012 Sevilla Spain

Magnetic particles can be uniformly fluidized by coupling the gas flow with an externally imposed magnetic field. Interparticle forces generated by the magnetic field cause aggregation of the particles in chain-like structures preferentially oriented along the magnetic field lines. In the present paper, we study the implications of the formation of these special types of aggregates on the empirical Richardson-Zaki （RZ） equation, originally proposed to describe the expansion of fluidized beds of non-aggregated particles. We have addressed two important issues, namely the flow regime, which is a function of the size of the aggregates, and the effect of shape and orientation of the chain-like aggregates with respect to gas flow on fluid drag. We propose a modified RZ equation （MRZE） in which the velocity scale, given by the terminal settling velocity of the individual aggregates, and the RZ exponent are predetermined as a function of the chain length. The chain length depends on the ratio of the magnetic energy to gravitational energy, and is estimated from the magnetic field intensity, and particle magnetization, size and density. Predictions of the MRZE are successfully compared with published results in the literature on the expansion of magnetic particles in the presence of externally applied magnetic fields.

关键词： Fluidization Geldart B Magnetic particles Aggregation Richardson-Zaki equation

Effect of music therapy on short-term psychological and physiological outcomes in mechanically ventilated patients:A randomized clinical pilot study

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Journal of Intensive Medicine 2024年第4期4卷 515-525页

作者： Mark Ettenberger Rosangela Casanova-Libreros josefina Chávez-Chávez jose Gabriel Cordoba-Silva William Betancourt-Zapata Rafael Maya Lizeth Alexa Fandino-Vergara Mario Valderrama Ingrid Silva-Fajardo Sandra Milena Hernández-Zambrano SONO-Centro de Musicoterapia BogotáColombia Vice-Rectorate for Research Fundación Universitaria de Ciencias de la SaludBogotáColombia Department of Biomedical Engineering University of Los AndesBogotáColombia Department of Rehabilitation Sociedad de Cirugía de Bogotá Hospital de San JoséBogotáColombia Faculty of Nursing Fundación Universitaria de Ciencias de la SaludBogotáColombia

Background:Elevated anxiety levels are common in patients on mechanical ventilation(MV)and may challenge *** suggests music-based interventions may reduce anxiety during ***,studies inves-tigating specific music therapy techniques,addressing psychological and physiological well-being in patients on MV,are ***:This three-arm randomized clinical pilot study was conducted with MV patients admitted to the intensive care unit(ICU)of Hospital San Joséin Bogotá,Colombia between March 7,2022,and July 11,*** were divided into three groups:intervention group 1(IG1),music-assisted relaxation;intervention group 2(IG2),patient-preferred therapeutic music listening;and control group(CG),standard *** main outcome measure was the 6-item State-Anxiety *** outcomes were:pain(measured with a visual analog scale),resilience(measured with the Brief Resilience Scale),agitation/sedation(measured with the Richmond Agitation-Sedation Scale),vital signs(including heart rate,blood pressure,oxygen saturation,and respiratory rate),days of MV,extubation success,and days in the ***,three patients underwent electroencephalography during the ***:Data from 23 patients were analyzed in this *** age range of the patients was 24.0-84.0 years,with a median age of 66.0 years(interquartile range:57.0-74.0).Of the 23 patients,19 were female(82.6%).No statistically significant differences between the groups were observed for anxiety(P=0.330),pain(P=0.624),resilience(P=0.916),agitation/sedation(P=0.273),length of ICU stay(P=0.785),or vital signs.A statistically significant difference between the groups was found for days of MV(P=0.019).Electroencephalography mea-surements showed a trend toward delta and theta band power decrease for two patients and a power increase on both beta frequencies(slow and fast)in the frontal areas of the brain for one ***:In this pilot study,music therapy did not sig

关键词： Music therapy Mechanical ventilation Intensive care unit Anxiety Pain

Extending dynamic models of mining subsidence

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中国有色金属学会会刊：英文版 2011年第S3期21卷 536-542页

作者： Andrew JAROSZ jose SAAVEDRA-ROSAS Western Australian School of Mines Curtin University

The movement and deformation processes of the overburden strata and ground surface, induced by underground mining, are affected by mining method, spatial relationships, geotechnical conditions of the rock strata and time. The authors reviewed and extended an existing classical prediction model of the dynamic subsidence, and proposed potential new research avenues offered by Cellular Automata (CA) models. The Knothe's influence function model and the significance of subcritical mining geometry were analyzed. The prediction results were verified against the subsidence field survey data to assess their quality and acceptability.

关键词： dynamic subsidence subsidence prediction cellular automata

Impact of pre-existing cardiometabolic diseases on metastatic cancer stage at diagnosis:a prospective multinational cohort study

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Cancer Communications 2024年第5期44卷 593-597页

作者： Anna Jansana Aviane Auguste Marina Kvaskoff Agnès Fournier Emma Fontvieille Laia Peruchet-Noray Carine Biessy Reynalda Cordova Kristina Elin Nielsen Petersen Anne Tjoneland Verena Katzke Rudolf Kaaks Fulvio Ricceri Salvatore Panico Paolo Contiero Maria-jose Sánchez Jesus Castilla Marta Crous-Bou Alicia Heath Elom Kouassivi Aglago Elisabete Weiderpass Marc James Gunter Pietro Ferrari Elio Riboli Vivian Viallon Heinz Freisling International Agency for Research on Cancer(IARC-WHO) LyonFrance Paris-Saclay University University of Versailles-Saint-Quentin-en-YvelineUniversity Paris-SudFrench National Institute for Health and Medical Research(Inserm)Gustave Roussy“Exposome and Heredity”TeamCESPVillejuifFrance Department of Nutritional Sciences University of ViennaViennaAustria Danish Cancer Society Research Center CopenhagenDenmark Department of Public Health University of CopenhagenCopenhagenDenmark Division of Cancer Epidemiology German Cancer Research CentreHeidelbergGermany Department of Clinical and Biological Sciences University of TurinTurinItaly Unit of Epidemiology Regional Health Service ASL TO3GrugliascoTurinItaly Department of Clinical Medicine and Surgery Federico II UniversityNaplesItaly Environmental Epidemiology Unit Istituto di Ricovero e Cura a Carattere Scientifico(IRCCS)-Istituto Nazionale dei TumoriMilanItaly Cancer Registry of Granada Institute for Biosanitary Research of Granada(ibs.GRANADA)GranadaSpain Epidemiology and Control of Chronic Diseases Group Epidemiology and Public Health Networking Biomedical Research CentreMadridSpain Navarra Public Health Institute PamplonaSpain Unit of Nutrition and Cancer Cancer Epidemiology Research ProgramCatalan Institute of Oncology(ICO)-Bellvitge Biomedical Research Institute(IDIBELL)L’Hospitalet de LlobregatBarcelonaSpain Department of Epidemiology Harvard Tseng-Hsi Chan School of Public HealthBostonMassachusettsUSA Department of Epidemiology and Biostatistics School of Public HealthImperial College LondonSt Mary’s CampusNorfolk PlaceLondonUK

Owing to shared risk factors between cardiometabolic diseases(CMDs)and cancer,coupled with population aging,the lifetime risk of an individual developing cancer after a CMD is ***,biological mechanisms such as insulin resistance or inflammation may not only predispose individuals withCMDto an elevated risk of certain types of cancer but also to a diagnosis of cancer at an advanced stage[1,2].

关键词： diagnosis diseases cancer

A neural network to predict reactor core behaviors

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Nuclear Science and Techniques 2014年第1期25卷 75-80页

作者： Juan jose Ortiz-Servin David A.Pelta jose Alejro Castillo Instituto Nacional de Investigaciones Nucleares Carretera Mexico Toluca S/NLa Marquesa OcoyoacacEstado de Mexico ETS Ingenieria Informatica y Telecomunicaciones Universidad de GranadaC/Daniel Saucedo Aranda

The global fuel management problem in BWRs(Boiling Water Reactors) can be understood as a very complex optimization problem,where the variables represent design decisions and the quality assessment of each solution is done through a complex and computational expensive *** last aspect is the major impediment to perform an extensive exploration of the design space,mainly due to the time lost evaluating non promising *** this work,we show how we can train a Multi-Layer Perceptron(MLP) to predict the reactor behavior for a given *** trained MLP is able to evaluate the configurations immediately,thus allowing performing an exhaustive evaluation of the possible configurations derived from a stock of fuel lattices,fuel reload patterns and control rods *** our particular problem,the number of configurations is approximately 7.7×10^(10);the evaluation with the core simulator would need above 200 years,while only 100hours were required with our approach to discern between bad and good *** later were then evaluated by the simulator and we confirm the MLP *** good core configurations reached the energy requirements,satisfied the safety parameter constrains and they could reduce uranium enrichment costs.

关键词：神经网络预测行为质量评估堆芯沸水反应堆多层感知器 MLP 优化问题

Changes in Olsen P in Relation to P Balance in Contrasting Agricultural Soils

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Pedosphere 2016年第5期26卷 636-642页

作者： Isabel DIAZ jose TORRENT Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos Escuela Tdcnica Superior de Ingeniería Agronómica(ETSIA)Universidad de SevillaCtra de Utrera km 141013 Sevilla(Spain) Departamento de Agronomia Universidad de CordobaEdificio C4Campus de Rabanales14071 Cordoba(Spain)

Maintaining soil phosphorus （P） at adequate levels for plant growth requires assessing how the long-term P balance （viz., the difference between P inputs and outputs） results in changes in soil test P. The hypothesis that routinely measured soil properties can help predict the conversion factor of P balance into Olsen P was tested at 39 sites in agricultural areas of the Mediterranean region in Spair~. A set of soil samples from each site was analyzed for Olsen P, inorganic P （P extracted using 0.5 mol L-1 H2SO4）, pseudototal P （P extracted using 0.5 mol L-1 H2SO4 following ignition at 550 ~C）, and organic P （the difference between pseudototal P and inorganic P）. Organic and Olsen P were uncorrelated in most of the 39 soil sets, which suggests that organic P content changed little with P inputs and outputs. The slopes of the regression lines of Olsen P against pseudototal and inorganic P, which were used as two different measures of the conversion factor, ranged widely （from 0.03 to 0.25 approximately）, with their average values （about 0.10） being similar to those found in long-term experiments conducted in temperate areas. Neither conversion factor was significantly correlated with any routinely measured soil property; however, the conversion factor for inorganic P was significantly lower for calcareous soils than for noncalcareous soils. Our negative results suggest the need to isolate the influence of soil properties from that of management systems and environmental factors relating to P dynamics in future studies.

关键词： calcareous soils conversion factor inorganic P noncalcareous soils organic P pseudototal P soil property soil test P

Correction to:Preface:Special Issue on Modeling,Simulation,and Optimization in Operational Research

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Journal of the Operations Research Society of China 2024年第2期12卷 548-548页

作者： Gerhard-Wilhelm Weber J.Joshua Thomas jose Antonio Marmolejo Saucedo Ugo Fiore Igor Litvinchev Pandian Vasant Poznan University of Technology PoznanPoland Institute of Applied Mathematics Middle East Technical UniversityAnkaraTurkey UOW Malaysia KDU Penang University CollegePetaling JayaMalaysia Facultad de Ingenieria Universidad PanamericanaMexico CityMexico Parthenope University and at Federico II University NaplesItaly Nuevo Leon State University San Nicolas de los GarzaMexico MERLIN Research Centre Ton Duc Thang UniversityHo Chi Minh CityVietnam

Journal of the American Heart Association|肝硬化退伍军人心肺血流动力学与病死率的关系:一项回顾性队列研究

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临床肝胆病杂志 2024年第6期40卷 1254-1254页

作者：杜佳霖温晓玉吉林大学第一医院肝胆胰内科

门脉性肺动脉高压(PoPH)与患者病死率增加相关,可能会限制肝脏疾病的治疗选择。目前缺乏与PoPH心肺血流动力学相关的临床风险连续性的数据。2024年4月,美国辛辛那提大学医学系jose等探讨了肝硬化退伍军人心肺血流动力学与死亡率的关系。

关键词：肺血流动力学回顾性队列研究医学系门脉性肺动脉高压临床风险辛辛那提大学肝硬化病死率

Bile acids:Chemistry,physiology,and pathophysiology

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World Journal of Gastroenterology 2009年第7期15卷 804-816页

作者： Maria J Monte jose JG Marin Alvaro Antelo jose Vazquez-Tato Laboratory of Experimental Hepatology and Drug Targeting CIBERehdUniversity of Salamanca Facultad de Ciencias Departamento de Quimica FisicaCampus of LugoUniversity of Santiago

The family of bile acids includes a group of molecular species of acidic steroids with very peculiar physical-chemical and biological *** are synthesized by the liver from cholesterol through several complementary pathways that are controlled by mechanisms involving finetuning by the levels of certain bile acid *** their best-known role is their participation in the digestion and absorption of fat,they also play an important role in several other physiological ***,genetic abnormalities accounting for alterations in their synthesis,biotransformation and/or transport may result in severe alterations,even leading to lethal situations for which the sole therapeutic option may be liver ***,the increased levels of bile acids reached during cholestatic liver diseases are known to induce oxidative stress and apoptosis,resulting in damage to the liver parenchyma and,eventually,extrahepatic *** this occurs during pregnancy,the outcome of gestation may be *** contrast,the physical-chemical and biological properties of these compounds have been used as the bases for the development of drugs and as pharmaceutical tools for the delivery of active agents.

关键词： Cholestasis Cholesterol Liver Metabolism Transport