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Electrifying Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ) for focalized heating in oxygen transport membranes

Journal of Energy Chemistry 2024年第4期91卷 99-110页

作者： Marwan Laqdiem Julio García-Fayos Laura Almar Alfonso J.Carrillo Álvaro Represa JoséM.López Nieto Sonia Escolástico David Catalán-Martinez jose M.Serra Instituto de Tecnología Química(Universitat Politècnica de València–Consejo Superior de Investigaciones Científicas) Av.Los Naranjos s/nE-46022 ValenciaSpain

Industry decarbonization requires the development of highly efficient and flexible technologies relying on renewable energy resources,especially biomass and solar/wind *** the case of pure oxygen production,oxygen transport membranes(OTMs)appear as an alternative technology for the cryogenic distillation of air,the industrially-established process of producing ***,OTMs could provide oxygen from different sources(air,water,CO_(2),etc.),and they are more flexible in adapting to current processes,producing oxygen at 700^(-1)000℃.Furthermore,OTMs can be integrated into catalytic membrane reactors,providing new pathways for different *** first part of this study was focused on electrification on a traditional OTM material(Ba_(0.5)Sr_(0.5)Co_(0.8)Fe_(0.2)O_(3-δ)),imposing different electric currents/voltages along a capillary *** to the emerging Joule effect,the membrane-surface temperature and the associated O_(2) permeation flux could be ***,the OTM is electrically and locally heated and reaches 900℃on the surface,whereas the surrounding of the membrane was maintained at 650℃.The O_(2)permeation flux reached for the electrified membranes was~3.7 NmL min^(-1)cm^(-2),corresponding to the flux obtained with an OTM non-electrified at 900℃.The influence of depositing a porous Ce_(0.8)Tb_(0.2)O_(2-δ) catalytic/protective layer on the outer membrane surface revealed that lower surface temperatures(830℃)were detected at the same imposed electric ***,the electrification concept was demonstrated in a catalytic membrane reactor(CMR)where the oxidative dehydrogenation of ethane(ODHE)was carried *** reaction is very sensitive to temperature,and here,we demonstrate an improvement of the ethylene yield by reaching moderate temperatures in the reaction chamber while the O_(2) injection into the reaction can be easily fine-tuned.

关键词： Oxygen permeation Oxidative dehydrogenation of ethane Oxygen transport membranes Joule effect Mixed ionic-electronic conductors Catalytic membrane reactors

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Variability and trends of near-surface wind speed over the Tibetan Plateau:The role played by the westerly and Asian monsoon

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Advances in Climate Change Research 2024年第3期15卷 525-536页

作者： Gang-Feng ZHANG Cesar AZORIN-MOLINA Deliang CHEN Tim RMCVICAR jose AGUIJARRO Kai-Qiang DENG Lorenzo MINOLA Jaeyeon LEE Seok-Woo SON Heng MA Pei-Jun SHI State Key Laboratory of Earth Surface Processes and Resource Ecology Beijing Normal UniversityBeijing 100875China Engineering Center of Desertification and Blown-Sand Control of Ministry of Education Faculty of Geographical ScienceBeijing Normal UniversityBeijing 100875China Key Laboratory of Environmental Change and Natural Disaster of Ministry of Education Beijing Normal UniversityBeijing 100875China Centro de Investigaciones Sobre Desertificaci'on Consejo Superior de Investigaciones Cientı'ficas(CIDECSIC-UV-Generalitat alenciana)ClimateAtmosphere and Ocean Laboratory(Climatoc-Lab)Moncada 46113Spain Regional Climate Group Department of Earth SciencesUniversity of GothenburgGothenburg 40530Sweden CSIRO Environment CanberraACT 2600Australia Australian Research Council Centre of Excellence for Climate Extremes CanberraACT 2600Australia State Meteorological Agency Balearic Islands OfficePalma de Mallorca 07015Spain School of Atmospheric Sciences Sun Yat-sen UniversityZhuhai 519082China Interuniversity Department of Regional and Urban Studies and Planning(DIST) Politecnico and University of TurinTurin 10125Italy School of Earth and Environmental Sciences Seoul National UniversitySeoul 08826South Korea Atmospheric and Oceanic Sciences Program Princeton UniversityPrinceton NJ 08544USA Geophysical Fluid Dynamics Laboratory NOAAPrinceton NJ 08544USA

Near-surface wind speed exerts profound impacts on many environmental issues,while the long-term(≥60 years)trend and multidecadal variability in the wind speed and its underlying causes in global high-elevation and mountainous areas(e.g.,Tibetan Plateau)remain largely ***,by examining homogenized wind speed data from 104 meteorological stations over the Tibetan Plateau for 1961-2020 and ERA5 reanalysis datasets,we investigated the variability and long-term trend in the near-surface wind speed and revealed the role played by the westerly and Asian *** results show that the homogenized annual wind speed displays a decreasing trend(-0.091 m s^(−1)per decade,p<0.05),with the strongest in spring(-0.131 m s^(−1)per decade,p<0.05),and the weakest in autumn(-0.071 m s^(−1)per decade,p<0.05).There is a distinct multidecadal variability of wind speed,which manifested in an prominent increase in 1961-1970,a sustained decrease in 1970-2002,and a consistent increase in *** observed decadal variations are likely linked to large-scale atmospheric circulation,and the correlation analysis unveiled a more important role of westerly and East Asian winter monsoon in modulating near-surface wind changes over the Tibetan *** potential physical processes associated with westerly and Asian monsoon changes are in concordance with wind speed change,in terms of overall weakened horizontal air flow(i.e.,geostrophic wind speed),declined vertical thermal and dynamic momentum transfer(i.e.,atmospheric stratification thermal instability and vertical wind shear),and varied Tibetan Plateau *** indicates that to varying degrees these processes may have contributed to the changes in near-surface wind speed over the Tibetan *** study has implications for wind power production and soil wind erosion prevention in the Tibetan Plateau.

关键词： Tibetan Plateau Wind speed Decadal change Atmospheric circulation Physical processes

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A new perspective on intervertebral disc calcification—from bench to bedside

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Bone Research 2024年第1期12卷 50-61页

作者： Emanuel J.Novais Rajkishen Narayanan jose A.Canseco Koen van de Wetering Christopher K.Kepler Alan S.Hilibrand Alexander R.Vaccaro Makarand V.Risbud Department of Orthopaedic Surgery Sidney Kimmel Medical CollegeThomas Jefferson UniversityPhiladelphiaPAUSA Unidade Local de Saúde do Litoral Alentejano Orthopedic DepartmentSantiago do CacémPortugal Rothman Orthopedic Institute at Thomas Jefferson University PhiladelphiaPAUSA

Disc degeneration primarily contributes to chronic low back and neck ***,there is an urgent need to understand the spectrum of disc degeneration phenotypes such as fibrosis,ectopic calcification,herniation,or mixed *** these phenotypes,disc calcification is the least *** calcification,by definition,is the pathological mineralization of soft tissues,widely studied in the context of conditions that afflict vasculature,skin,and ***,disc calcification is associated with poor surgical outcomes and back pain refractory to conservative *** is frequently seen as a consequence of disc aging and progressive degeneration but exhibits unique molecular and morphological characteristics:hypertrophic chondrocyte-like cell differentiation;TNAP,ENPP1,and ANK upregulation;cell death;altered Pi and PPi homeostasis;and local *** studies in mouse models have provided a better understanding of the mechanisms underlying this *** is essential to recognize that the presentation and nature of mineralization differ between AF,NP,and EP ***,the combination of anatomic location,genetics,and environmental stressors,such as aging or trauma,govern the predisposition to ***,the systemic regulation of calcium and Pi metabolism is less important than the local activity of PPi modulated by the ANK-ENPP1 axis,along with disc cell death and differentiation *** there is limited understanding of this phenotype,understanding the molecular pathways governing local intervertebral disc calcification may lead to developing disease-modifying drugs and better clinical management of degeneration-related pathologies.

关键词： degeneration metabolism intervertebral

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Correcting distortions of thin-walled machined parts by machine hammer peening

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Chinese Journal of Aeronautics 2024年第6期37卷 439-453页

作者： Aitor MADARIAGA Mikel CUESTA Gorka ORTIZ-DE-ZARATE Eneko SAENZ-DE-ARGANDONA Denis SORIANO Michael B.PRIME Pedro jose ARRAZOLA Department of Materials University of ManchesterOxford RoadManchester M139PLUnited Kingdom Mechanical and Industrial Production Department Faculty of EngineeringMondragon UnibertsitateaArrasate 20500Spain Los Alamos National Laboratory Los AlamosNew MexicoUSA

Thin-walled aerostructural components frequently get distorted after the machining *** to correct distortions or eventually rejecting parts significantly increases the *** paper proposes a new approach to correct distortions in thin-walled components by strategically applying hammer peening on target surfaces of a machined *** alloy 7475-T7351 was chosen for this *** study was divided in two ***,the residual stresses(RS)induced by four different pneumatic hammer peening conditions(modifying the stepover distance and initial offset)were characterised in a test coupon,and one of the conditions was selected for the next *** the second stage,a FEM model was used to predict distortions caused by machining in a representative ***,the RS induced by hammer peening were included in an FEM model to define two hammer peening strategies(varying the coverage area)to analyse the capability to reduce *** workpieces were machined and then treated with the simulated hammer peening strategies for experimental *** in the test coupon showed that pneumatic hammer peening can generate high compressive RS(-50 to350 MPa)up to 800 lm depth,with their magnitude increasing with a reduced stepover *** of hammer peening over 4% of the surface of the representative workpiece reduced the machininginduced distortions by 37%,and a coverage area of 100% led to and overcorrection by a factor of *** confirms that hammer peening can be strategically applied(in target areas and changing the percentage of coverage)to correct low or severe distortions.

关键词： Aeronautics Machining,Hammer Peening Aluminium alloy Distortions Residual Stress

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Portal vein arterialization in 25 liver transplant recipients:A Latin American single-center experience

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World Journal of Transplantation 2024年第2期14卷 135-147页

作者： Nicolas Andres Cortes-Mejia Diana Fernanda Bejarano-Ramirez Juan jose Guerra-Londono Diego Rymel Trivino-Alvarez Raquel Tabares-Mesa Alonso Vera-Torres Division of Anesthesiology Critical Care Medicineand Pain MedicineThe University of Texas MD Anderson Cancer CenterHoustonTX 77030United States Transplant and Hepatobiliary Surgery Department Fundacion Santa Fe de BogotaBogota 110111Colombia General Surgery Department Fundacion Santa Fe de BogotaBogota 110111Colombia

BACKGROUND Portal vein arterialization(PVA)has been used in liver transplantation(LT)to maximize oxygen delivery when arterial circulation is compromised or has been used as an alternative reperfusion technique for complex portal vein thrombosis(PVT).The effect of PVA on portal perfusion and primary graft dysfunction(PGD)has not been *** patients receiving PVA and LT at the Fundacion Santa Fe de Bogota between 2011 and 2022 were *** account for the time-sensitive effects of graft perfusion,patients were classified into two groups:prereperfusion(pre-PVA),if the arterioportal anastomosis was performed before graft revascularization,and postreperfusion(post-PVA),if PVA was performed *** pre-PVA rationale contemplated poor portal hemodynamics,severe vascular steal,or ***-PVA was considered if graft hypoperfusion became *** interventions were attempted before PVA.

关键词： Liver transplantation Portal vein arterialization Arteriovenous anastomoses Portal hypertension Portal vein thrombosis Spontaneous portosystemic shunts Vascular steal phenomenon Primary graft dysfunction Early allograft dysfunction

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Teachers’ Perceptions of the Challenges and Strategies in Supporting Students with Reading Difficulties

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Journal of Contemporary Educational Research 2024年第8期8卷 238-252页

作者： Kristel P.Alcayde Ma.Leticia jose C.Basilan Rizal College of Taal Taal BatangasBatangasPhilippines DepEd Batangas Province BatangasPhilippines Batangas State University BatangasPhilippines

The purpose of this study is to determine the teacher’s perceptions of the challenges and strategies in supporting students with reading *** study used qualitative method of research and descriptive approach as its research design,in addition to a set of structured interview questions administered through Google Forms to gather data from elementary teachers of Taal Central School,located at Taal *** structured interview questions were carefully designed to cover various dimensions of the study,including the types of challenges perceived by teachers,strategies employed,and possible solutions for addressing the problems encountered in the process of supporting students with reading *** results revealed that teachers faced several challenges when teaching students with reading difficulties such as emotional and motivational issues/factors,lack of resources or teaching aids,deficits in knowledge and skills,and problems with student engagement and *** study also showed common approaches utilized by the teachers in supporting students with reading difficulties,which were fostering a positive and supportive environment,adopting individualized and multifaceted approaches,and utilizing effective teaching tools and ***,teachers also concluded varied solutions in addressing the challenges perceived in teaching students with reading difficulties towards fostering reading *** include developing peer support,use of positive reinforcement,and parental ***,specialized resources,professional development for teachers,and specific teaching strategies are also highlighted as crucial *** integrating these approaches,teachers concluded that it can create a supportive and effective learning environment tailored to the needs of students with reading difficulties.

关键词： Reading difficulties Supportive environment Positive reinforcement Parental involvement Professional development

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Pembrolizumab autoimmune related diabetes:Moving forward,keep learning

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World Journal of Clinical Oncology 2024年第5期15卷 576-579页

作者： jose Angel Garcia Diego Alcaraz Esther Holgado Felipe Couñago Department of Medical Oncology GenesisCare Spain-San Francisco de Asis University HospitalMadrid 28002Spain Department of Chief of Medical Oncology GenesisCare Spain-San Francisco de Asis University HospitalMadrid 28002Spain Department of Chief of Radiation Oncology GenesisCare-Vithas La Milagrosa HospitalMadrid 28010Spain

Immune checkpoint inhibitors(and more specifically programmed cell death 1/programmed cell death ligand 1 inhibitors as Pembrolizumab)initiated a revolution in the field of melanoma and have now expanded to several tumor subtypes and in increasingly broader clinical contexts,including the adjuvant and neoadjuvant setting,with potentially curable patients and prolonged *** side effects related to these drugs include a wide spectrum of manifestations,with endocrinological adverse events being some of the most ***-induced type 1 diabetes mellitus is an infrequent but potentially serious and not clearly reversible side effect that possesses characteristic clinical features and has high morbidity and mortality,with a chronic impact on quality of *** etiopathogenesis of this phenomenom needs to be further investigated and a collaborative effort through the involvement of oncologists and other medical specialists is necessary for the correct identification and management of patients at risk.

关键词： Immune checkpoints Pembrolizumab Immunotherapy Side effects Endocrine system Diabetes mellitus

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Muscle strength deficits are associated with low bone mineral density in young pediatric cancer survivors:The iBoneFIT project

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Journal of Sport and Health Science 2024年第3期13卷 419-427页

作者： Andres Marmol-Perez jose J.Gil-Cosano Esther Ubago-Guisado Francisco J.Llorente-Cantarero Juan Francisco Pascual-Gázquez Kirsten K.Ness Vicente Martinez-Vizcaino Jonatan R.Ruiz Luis Gracia-Marco Department of Physical Education and Sports Faculty of Sport SciencesSport and Health University Research Institute(iMUDS)University of GranadaGranada 18011Spain Department of Epidemiology and Cancer Control St.Jude Children's Research HospitalMemphisTN 38105USA Department of Communication and Education Loyola University AndalusiaSeville 41704Spain Biosanitary Research Institute ibs.GranadaGranada 18012Spain Maimonides Biomedical Research Institute of Cordoba(IMIBIC) Cordoba 14004Spain CIBEROBN Biomedical Research Networking Center for Physiopathology of Obesity and NutritionCarlos III Health InstituteMadrid 28029Spain Department of Specific Didactics Faculty of EducationUniversity of CordobaCordoba 14071Spain Pediatric and adolescent hematology and oncology service Pediatrics and Pediatric Surgery Clinical Management UnitVirgen de las Nieves University HospitalGranada 18014Spain Health and Social Research Center Universidad de Castilla-La ManchaCuenca 13001Spain

Background Pediatric cancer survivors are at increased risk of muscle weakness and low areal bone mineral density(aBMD).However,the prevalence of muscle strength deficits is not well documented,and the associations of muscle strength with aBMD are unknown in this ***,this study aimed to investigate the prevalence of upper-and lower-body muscle strength deficits and to examine the associations of upper-and lower-body muscle strength with age-,sex,and race-specific aBMD Z-scores at the total body,total hip,femoral neck,and lumbar *** This cross-sectional study included 116 pediatric cancer survivors(12.1±3.3 years old,mean±SD;42.2%female).Upper-and lower-body muscle strength were assessed by handgrip and standing long jump test,***‑energy X‑ray absorptiometry was used to measure aBMD(g/cm2).Associations between muscle strength and aBMD were evaluated in multivariable linear regression *** regression was used to evaluate the contribution of muscle strength(1-decile lower)to the odds of having low aBMD(Z-score≤1.0).All analyses were adjusted for time from treatment completion,radiotherapy exposure,and body mass *** More than one-half of survivors were within the 2 lowest deciles for upper-(56.9%)and lower-body muscle strength(60.0%)in comparison to age-and sex-specific reference *** strength deficits were associated with lower aBMD Z-scores at all sites(B=0.133–0.258,p=0.001–0.032).Each 1-decile lower in upper-body muscle strength was associated with 30%–95%higher odds of having low aBMD Z-scores at all *** 1-decile lower in lower-body muscle strength was associated with 35%–70%higher odds of having low aBMD Z-scores at total body,total hip,and femoral *** Muscle strength deficits are prevalent in young pediatric cancer survivors,and such deficits are associated with lower aBMD Z-scores at all *** results suggest that interventions designed to improve muscle strength in t

关键词： Bone health Childhood cancer DXA Lean mass Resistance training

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Study of Resistivity of Electrolytes Using Hull Cell

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材料科学与工程（中英文A版） 2013年第12期3卷 831-837页

作者： Gerardo Cifuentes Christian Hizmeri jose hernandez Departament of Metallurgical Engineering University of Santiago of Chile Santiago Chile Departament of Chemical Engineering University of Santiago of Chile Santiago Chile

This research is a study of resistivity under different ionic conditions, but using a completely different technique from the traditional one. A Hull cell, normally employed in electroplating studies, will be used. The mathematical model, describing resistivity as a function of the initial of current and voltage parameters is very simple.

关键词：电阻率赫尔槽电解质数学模型电压参数电镀

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Current role in facial allograft transplantation:what have we learned?

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Plastic and Aesthetic Research 2016年第1期3卷 211-218页

作者： Pedro Infante-Cossio Fernando Barrera-Pulido Tomas Gomez-Cia Domingo Sicilia-Castro Alberto Garcia-Perla-Garcia Purificacion Gacto-Sanchez jose Maria hernandez-Guisado Araceli Lagares-Borrego Rocio Narros-Gimenez Juan-David Gonzalez-Padilla Department of Oral and Maxillofacial Surgery Virgen del Rocio University Hospital41013 SevilleSpain Department of Plastic and Reconstructive Surgery Virgen del Rocio University Hospital41013 SevilleSpain

Face transplant(FT)has evolved enormously in the last 10 years since the successful completion of the first facial *** procedure has become a new reconstructive option for complex facial deformities to restore the anatomy of patients with severely disfigured *** authors review the literature and discuss the main surgical,immunological,and ethical aspects as well as the results described in patients undergoing *** date there have been more than thirty FT *** main indication was post-traumatic *** all cases a standard immunosuppression was performed with three drugs,although acute rejection episodes were observed,that could be controlled with conventional immunosuppressive ***,functional and aesthetic results have been excellent at short-term and high satisfaction rate exceeded initial expectations,although long-term data are still *** complications were opportunistic *** deaths that occurred have reopened the ethical debate about the potential complications and concerns of providing informed consent to *** progresses in microsurgical techniques and preoperative planning have promoted the evolution from partial to full *** these are on the basis of accurate and careful selection of well-motivated *** next challenge will be getting new immunosuppressive treatment *** clinical experience has demonstrated the FT viability,it is still considered an experimental procedure in which we have much to learn to define its true role in the current reconstructive surgery and resolve major technical,medical and ethical problems involved.

关键词： Face transplantation composite tissue transplantation facial allograft transplantation facial reconstruction outcomes and complications of face transplantation

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