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Observability Analysis of Integrated Electricity and heating Systems with Thermal Quasi-dynamics in Pipelines

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CSEE Journal of Power and Energy Systems 2024年第3期10卷 1145-1158页

作者： Zhigang Li Wenjian Zheng Junbo Zhao J.h.Zheng Q.h.Wu School of Electric Power Engineering South China University of TechnologyGuangzhou 510641China Fuzhou Changle District Power Supply Company of State Grid Fujian Electric Power Co. Ltd.Fuzhou 350000China Department of Electrical and Computer Engineering University of ConnecticutStorrsCT 06269USA CSEE IEEE

Observability analysis(OA)is vital to obtaining the available input measurements of state estimation(SE)in an integrated electricity and heating system(IEhS).Considering the thermal quasi-dynamics in pipelines,the measurement equations in heating systems are dependent on the estimated results,leading to an interdependency between OA and *** OA methods require measurement equations be known exactly before SE is performed,and they are not applicable to *** bridge this gap,a scenario-based OA scheme for IEhSs is devised that yields reliable analysis results for a predefined set of time-delay scenarios to cope with this *** its core procedure,the observable state identification and observability restoration are formulated in terms of integer linear *** tests are conducted to demonstrate the validity and superiority of the proposed formulation.

关键词： Integrated electricity and heating system measurement observability analysis state estimation thermal quasi-dynamics

Obstructive sleep apnea:Overlooked comorbidity in patients with diabetes

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World Journal of Diabetes 2024年第7期15卷 1448-1460页

作者： Eric D Tenda Joshua henrina Jin h Cha Muhammad r Triono Ersananda A Putri Dahliana J Aristy Dicky L Tahapary Division of respirology and Critical Care Department of Internal MedicineFaculty of Medicine Universitas Indonesia-Cipto Mangunkusumo HospitalDKI JakartaJakarta Pusat 10430Indonesia head of research Group Artificial Intelligence and Digital health Indonesian Medical Education and Research InstituteFaculty of Medicine University of IndonesiaDKI JakartaJakarta Pusat 10430Indonesia Division of Endocrinology Metabolism and DiabetesDepartment of Internal MedicineFaculty of Medicine Universitas Indonesia-Cipto Mangunkusumo HospitalDKI JakartaJakarta Pusat 10430Indonesia

In this review article,we explore the interplay between obstructive sleep apnea(OSA)and type 2 diabetes mellitus(T2DM),highlighting a significant yet often overlooked *** delve into the pathophysiological links between OSA and diabetes,specifically how OSA exacerbates insulin resistance and disrupts glucose *** research examines the prevalence of OSA in diabetic patients and its role in worsening diabetes-related *** the importance of comprehensive management,including weight control and positive airway pressure therapy,the study advocates integrated approaches to improve outcomes for patients with T2DM and *** review underscores the necessity of recognizing and addressing OSA in diabetes care to ensure more effective treatment and better patient outcomes.

关键词： Obstructive sleep apnea Type 2 diabetes mellitus Macrovascular Microvascular Weight loss Positive airway pressure

Application of novel constrained friction processing method to produce fine grained biomedical Mg-Zn-Ca alloy

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Journal of Magnesium and Alloys 2024年第2期12卷 516-529页

作者： Ting Chen Banglong Fu Junjun Shen Uceu F.h.r.Suhuddin Björn Wiese Yuanding huang Min Wang Jorge F.dos Santos Jean Pierre Bergmann Benjamin Klusemann Solid State Materials Processing Institute of Material MechanicsHelmholtz-Zentrum HereonMax-Planck-Str.1Geesthacht 21502Germany Functional Magnesium Materials Institute of Metallic BiomaterialsHelmholtz-Zentrum HereonMax-Planck-Str.1Geesthacht 21502Germany Shanghai Key Laboratory of Materials Laser Processing and Modification Shanghai Jiao Tong UniversityDongchuan Road 800Shanghai 200240China Applied Materials and Manufacturing Energy and Environment DivisionPacific Northwest National LaboratoryPO Box 999RichlandWA 99352USA Production Technology Group Technisiche Universität IlmenauGustav-Kirchhoff-Platz 2Ilmenau 98693Germany Institute for Production Technology and Systems Leuphana University of LüneburgUniversitätsallee 1Lüneburg 21335Germany

In order to obtain Mg alloys with fine microstructures and high mechanical performances,a novel friction-based processing method,name as“constrained friction processing(CFP)”,was *** CFP,defect-free Mg-Zn-Ca rods with greatly refined grains and high mechanical properties were *** to the previous as-cast microstructure,the grain size was reduced from more than 1 mm to around 4μm within 3 s by a single process *** compressive yield strength was increased by 350%while the ultimate compressive strength by 53%.According to the established material flow behaviors by“tracer material”,the plastic material was transported by shear *** the base material to the rod,the material experienced three stages,*** by the tool,upward flow with additional tilt,followed by upward *** microstructural evolution was revealed by“stop-action”*** microstructural development at regions adjacent to the rod is mainly controlled by twinning,dynamic recrystallization(DrX)as well as particle stimulated nucleation,while that within the rod is related to DrX combined with grain growth.

关键词： Constrained friction processing Magnesium alloys Microstructure Mechanical properties Grain refinement Plastic deformation

Effect of mitomycin C on the corneal endothelial cells of Saudi patients with myopia after transepithelial photorefractive keratectomy:a two-armed cohort study

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International Journal of Ophthalmology(English edition) 2024年第5期17卷 909-915页

作者： Sultan h Alrashidi Department of Ophthalmology College of MedicineQassim UniversityBuraidah 51452Saudi Arabia

AIM:To study the effect of mitomycin C(MMC)applied during transepithelial photorefractive keratectomy(TPrK)on the corneal endothelium one week(W1)and three months(M3)after surgery and its ***:In this two-armed cohort study conducted in 2022,eyes treated with MMC during TPrK(group 1)were compared with eyes not treated with MMC(group 2).The corneal endothelial cell(EC)count,EC density(ECD;cells/mm2),average(μm2),standard deviation(μm2),coefficient of variation(CV%),ECmax,ECmin,and EC percentage of hexagonality were estimated at W1 and *** postoperative changes in the EC count in the two groups were compared and correlated with the other independent ***:Group 1 had 26 eyes,and group 2 had 78 *** TPrK indices were significantly higher for the eyes in group 1 than for those in group *** MMC usage was not a significant predictor of the change in ECD(P=0.644),change in CV(P=0.374),and change in the percentage of hexagonality of EC(P=0.164)at ***,the use of MMC was a significant predictor of changes in CV(P=0.014)and the change in the percentage of hexagonality of EC(P=0.039)at *** duration of laser exposure and the size of the optical zone influenced the correlation of MMC use with the changes in EC indices,***:The use of MMC doesn’t affect ECD,CV,and percentage of hexagonality at W1 if other surgical indices are *** M3 after operating myopic eyes by TPrK,MMC significantly influence the CV and percentage of *** duration of the laser application and the size of the optical zone should be considered when determining the effect of MMC on the EC indices.

关键词： transepithelial photorefractive keratectomy mitomycin-C corneal endothelium

A detailed comparison of the composition of(rE)-Ba-Cu-O-Ag bulk superconductors

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Superconductivity 2024年第1期9卷 87-94页

作者： J.V.J.Congreve Y.Shi A.r.Dennis h.Druiff N.C.Tutt D.A.Cardwell J.h.Durrell Department of Engineering University of CambridgeCambridgeUK

The homogeneity of the microstructure and composition are critical in determining the properties of rare earthbarium‐cuprate,single grain bulk superconductors[(rE)BCO].The magnitude of the trapped magnetic field achieveable in these technologically important materials,in particular,is influenced heavily by the size and distribution of(rE)_(2)BaCuO_(x)(rE‐211)flux pinning inclusions in the bulk microstructure,whereas the size and distribution of silver agglomerates present within the bulk superconducting matrix correlate directly with improved mechanical *** careful engineering,these materials have significant potential for application in range of devices related to energy storage,medicine,electro‐magnetic machinery and microelectronic *** of(rE)BCO bulk superconductors typically involves heating a powder compact above its peritectic decomposition temperature followed by slow cooling to facilitate the growth of a single ***(rE)BCO composition has a different peritectic temperature and growth rate,which,therefore,necessitates different requirements in the heating *** fabrication temperature and growth rate,for example,may have an effect on the rE‐211 and silver distribution,which may,in turn,affect the superconducting properties of the resulting single *** this work we compare the distributions of silver and rE‐211 in the single grain microstructures of YBCOAg,GdBCO‐Ag,EuBCO‐Ag and SmBCO‐Ag bulk superconductors using optical microscopy,scanning electron microscopy and energy dispersive X‐ray *** observe that the distributions are very similar along both the a/b‐axis and c‐axis of these *** suggests that factors other than the maximum temperature used to achieve peritectic decomposition and the rate of single grain growth are particularly influential in determining the properties of the as‐processed samples in the top seeded melt growth *** observation demonstrates there is freedom to us

关键词： YBCO‐Ag GdBCO‐Ag SmBCO‐Ag EuBCO‐Ag Composition Bulk superconductor

Effects of the concentration and nature of total dissolved solids in drinking water on feed intake, nutrient digestion, energy balance,methane emission, ruminal fermentation, and blood constituents in different breeds of young goats and hair sheep

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Animal Nutrition 2024年第1期16卷 84-95页

作者： Amlan Kumar Patra Luana Paula dos Santos ribeiro hirut Yirga Adekayode O.Sonibare Ahmed r.Askar Ali h.hussein ryszard Puchala Arthur Louis Goetsch American Institute for Goat research Langston University Animal and Poultry Nutrition Department Desert Research Center Agriculture Food and Natural ResourcesEastern New Mexico University

Understanding how different livestock species and breeds respond to consumption of brackish water could improve usage of this ***,Angora,Boer,and Spanish goat doelings and Dorper,Katahdin,and *** ewe lambs (6 animals per animal type[AT];initial age=296±2.1 days)consuming water with varying concentrations of minerals of a natural brackish water source (Br) and sodium chloride (NaCl;SL) were used to determine effects on water and feed intake,nutrient digestion,heat energy,methane emission,ruminal fluid conditions,and blood constituent *** were 6 simultaneous 6 (water treatments[WT])×6 (AT) Latin squares with 3-wk *** WT were fresh (Fr),Br alone (100-Br),a similar total dissolved solids (TDS) concentration as 100-Br via NaCl addition to Fr (100-SL),Br with concentrations of all minerals increased by approximately 50%(150-Br),a similar TDS level as 150-Br by NaCl addition to Fr (150-SL),and a similar 150 TDS level achieved by addition of a 1:1 mixture of Br minerals and NaCl to 100-Br (150-Br/SL).Concentrations (mg/kg) in Br were 4928 TDS,85.9 bicarbonate,224.9 calcium,1175 chloride,60.5 magnesium,4.59 potassium,1387sodium,1962 sulfate,and 8.3 boron,and TDS in other WT were 209,5684,7508,8309,and 7319 mg/kg for Fr,100-SL,150-Br,150-SL,and 150-Br/SL,*** were very few significant effects of WT or AT×WT interactions,although AT had numerous *** intake was affected by AT (P=0.02)and WT (P=0.04),with greater water intake for 150-SL than for Fr,100-Br,100-SL,and *** matter intake among AT was lowest (Pr *** of organic matter and neutral detergent fiber and heat energy differed among AT (Progen digestion and ruminal methane emission were similar among *** aldosterone concentration was higher (Pr Fr than for other *** conclusion,all AT seemed resilient to these WT regardless of mineral source and concentrations,with TDS less than 8300 mg/kg,which did

关键词： Goats hair sheep Nutrient utilization ruminal fermentation Salinity Water quality

Processes involving soil CO_(2)dynamic in a sector of Chaco-Pampean plain,Argentina:An isotope geochemical approach

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Acta Geochimica 2024年第5期43卷 947-958页

作者： Sanci romina Panarello héctor Instituto de Geociencias Básicas Aplicadas y Ambientales de Buenos Aires(IGEBA)Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresCABAIntendente Güiraldes 2160Pabellón IIPiso 1C1428EGA Ciudad UniversitariaArgentina Instituto de Geocronología y Geología Isotópica(INGEIS) Facultad de Ciencias Exactas y NaturalesUniversidad de Buenos AiresCABAIntendente Güiraldes 2160Pabellón INGEISC1428EGA Ciudad UniversitariaArgentina

The magnitude and spatial variability of CO_(2)surface emissions and processes involving CO_(2)released to the atmosphere from the soils are relevant issues in the context of climate *** work evaluated CO_(2)fluxes and^(13)C/^(12)C ratio of vegetation,organic matter,and soil gases from no disturbed soils of Chaco Pampean Plain(Argentina)with different soil properties and environmental conditions(PL and PA units).Soil organic decomposition from individual layers was accompanied byδ^(13)C of total organic carbon(δ^(13)C-TOC)values more enriched to depth.δ^(13)C-TOC values in the upper soil profile~ca.0–15 cm were like the plant community of this area(~−33 to−29‰)whileδ^(13)CTOC varied stronger bellow horizon A,till~−24‰.Bothδ^(13)C-TOC and soilδ^(13)C-CO_(2)were similar(~−24 to 26‰)at deeper horizons(~50–60 cm).Toward the superficial layers,δ^(13)C-TOC andδ^(13)C-CO_(2)showed more differences(till~4‰),due influence of the diffusion *** A layer(~0–20 cm)from both PL and PA units contained the most enrichedδ^(13)C-CO_(2)values(~−15–17‰)because atmospheric CO_(2)permeated the soil air.A simple two-component mixing model between sources(atmosphericδ^(13)C-CO_(2)and soil CO_(2))confirmed that ***,CO_(2)fluxes reflected the biodegradation of C3 plants(source),diffusive transport,and CO_(2)exchange(atmosphere/soil).Soil moisture content appeared as a determining factor in the diffusion process and the magnitude of CO_(2)surface emissions(12–60 g·m^(−2)·d^(−1)).That condition was confirmed by CO_(2)diffusion coefficients estimated by air-filled porosity parameters and soil radon gradient model.

关键词： Soil CO_(2) Carbon isotopes Isotope fractionation radon gases

Well-Posedness of Stochastic Continuity Equations on riemannian Manifolds

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Chinese Annals of Mathematics,Series B 2024年第1期45卷 81-122页

作者： Luca GALIMBErTI Kenneth h.KArLSEN Department of Mathematical Sciences NTNU Norwegian University of Science and TechnologyN-7491 TrondheimNorway Department of mathematics University of OsloP.O.Box 1053BlindernN-0316 OsloNorway

The authors analyze continuity equations with Stratonovich stochasticity,■ρ+divh[ρo(u(t,x)+∑_(i=1)^(N)a_(i)(x)w_(i)(t))]=0defined on a smooth closed riemannian manifold M with metric *** velocity field u is perturbed by Gaussian noise terms Wi(t),:WN(t)driven by smooth spatially dependent vector fields a1(x),...,aN(x)on *** velocity u belongs to L_(t)^(1)W_(x)^(1,2)with divh u bounded in Lf,for p>d+2,where d is the dimension of M(they do not assume div_(h) u∈L_(t,x)^(∞)).For carefully chosen noise vector fields ai(and the number N of them),they show that the initial-value problem is well-posed in the class of weak L^(2) solutions,although the problem can be ill-posed in the deterministic case because of concentration *** proof of this“regularization by noise”result is based on a L^(2) estimate,which is obtained by a duality method,and a weak compactness argument.

关键词： Stochastic continuity equation riemannian manifold hyperbolic equa-tion Non-smooth velocity field Weak solution Existence Uniqueness

Storylines of family medicine Ⅲ:core principles—primary care,systems and family

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Family Medicine and Community health 2024年第S3期12卷 23-32页

作者： William B Ventres Leslie A Stone Timothy A Joslin John W Saultz Sommer Aldulaimi Paul r Gordon John C Lane Eric r Lee Jacob Prunuske Limor Gildenblatt Michael h Friedman Colleen T Fogarty Susan h McDaniel Tessa rohrberg Amy Odom Family and Preventive Medicine University of Arkansas for Medical Sciences College of MedicineLittle RockArkansasUSA Family Medicine Oregon Health&Science UniversityPortlandOregonUSA Family and Community Medicine University of Arizona Medical Center–South CampusTucsonArizonaUSA Family and Community Medicine University of Arizona Medical Center–University CampusTucsonArizonaUSA UAMS West regional Campus Family Medicine residency Program Fort SmithArkansasUSA Medical College of Wisconsin–Central Wisconsin Campus WausauWisconsinUSA Family and Community Medicine Medical College of Wisconsin–Central Wisconsin CampusWausauWisconsinUSA Family Medicine Advocate Illinois Masonic Medical CenterChicagoIllinoisUSA Family Medicine Presence Saints Mary and Elizabeth Medical CenterChicagoIllinoisUSA Family Medicine University of Rochester Medical CenterRochesterNew YorkUSA Psychiatry and Family Medicine University of Rochester Medical CenterRochesterNew YorkUSA Family and Community Medicine University of Kansas School of Medicine-WichitaWichitaKansasUSA Sparrow/Michigan State University Family Medicine residency Program LansingMichiganUSA

Storylines of Family Medicine is a 12-part series of thematically linked mini-essays with accompanying illustrations that explore the many dimensions of family medicine,as interpreted by individual family physicians and medical educators in the USA and elsewhere around the ***‘Ⅲ:core principles—primary care,systems,and family’,authors address the following themes:‘Continuity of care—building therapeutic relationships over time’,‘Comprehensiveness—combining breadth and depth of scope’,‘Coordination of care—managing multiple realities’,‘Access to care—intersectional,systemic,and personal’,‘Systems theory—a core value in patient-centered care’,‘Family-oriented practice—supporting patients’health and well-being’,‘Family physician as family member’and‘Family in the exam room’.May readers develop new understandings from these essays.

关键词： individual Storyline principles