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system integration analysis of a zeolite 13x thermal energy storage

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Energy and Built Environment 2024年第4期5卷 568-579页

作者： s.De Antonellis L.p.M.Colombo p.Castellazzi A.Rossetti L.Marocco politecnico di milano Department of Energyvia Lambruschini 4Milan 20156Italy Ricerca sul sistema Energetico-RsE s.p.a. Tecnologie di Generazione e Materialivia R.Rubattino 54Milan 20134Italy

Nowadays a major energy transition aimed at cutting CO 2 emissions has begun,with the ambitious goal of drasti-cally reducing the dependence on fossil fuels and promoting the use of renewable energy *** this context,energy storage systems.p.a. a key role in ensuring a stable,secure and time-aligned energy *** sorption thermal energy storages(TEss)can contribute to such transition,since they are simple and cheap devices able to provide a hot airflow with a high energy density and to store energy for long *** this work,open sorption TEs systems operated with Zeolite13X are investigated with a focus on the integration in practical ***,the experimental analysis and modelling of the sole TEs system is ***,the integration of the TEs at system level is carried *** analysis evidences that a significant reduction of storage capac-ity occurs if air humidification is necessary before the adsorption process or afterwards to keep adequate indoor comfort conditions for the *** the exemplary case study considered,an energy density of 150 kWhm^(−3) can drop to 40 kWhm−3 in case of complete compensation of the adsorbed water through a *** paper provides useful guidelines for evaluating the performance of a TEs integrated system in terms of specific energy and *** also identifies applications involving high latent loads(e.g.,swimming pools,locker rooms)or for which low relative air humidity is required(*** of vehicles to prevent condensation on windows)as particularly beneficial for using a TEs system.

关键词： Energy storage Adsorption Zeolite system integration Numerical model

Variational Approach to Heat Conduction Modeling

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Journal of Applied Mathematics and physics 2024年第1期12卷 234-248页

作者： slavko Đurić Ivan Aranđelović milan Milotić Faculty of Traffic Engineering University of East Sarajevo Doboj Bosnia and Herzegovina Faculty of Mechanical Engineering University of Belgrade Belgrade Republic of Serbia

It is known that Fourier’s heat equation, which is parabolic, implies an infinite velocity propagation, or, in other words, that the mechanism of heat conduction is established instantaneously under all conditions. This is unacceptable on physical grounds in spite of the fact that Fourier’s law agrees well with experiment. However, discrepancies are likely to occur when extremely short distances or extremely short time intervals are considered, as they must in some modern problems of aero-thermodynamics. Cattaneo and independently Vernotte proved that such process can be described by Heaviside’s telegraph equation. This paper shows that this fact can be derived using calculus of variations, by application of the Euler-Lagrange equation. so, we proved that the equation of heat conduction with finite velocity propagation of the thermal disturbance can be obtained as a solution to one variational problem.

关键词： Telegraph Equation Heat Equation Heat Conduction Calculus of Variations

必然中的自由与自由中的必然——重解马克思的自由劳动

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现代哲学 2024年第4期 36-43页

作者：张米兰中山大学马克思主义哲学与中国现代化研究所暨哲学系广州510275

西方马克思主义学者认为,在马克思的早期文本和晚期的政治经济学批判系列作品中,呈现了两种关于自由劳动的矛盾定义。这不仅被用来证明马克思文本中的“认识论断裂”,也导致很多学者放弃从劳动中寻找解放的可能性。但通过分析自由劳动... 详细信息

西方马克思主义学者认为,在马克思的早期文本和晚期的政治经济学批判系列作品中,呈现了两种关于自由劳动的矛盾定义。这不仅被用来证明马克思文本中的“认识论断裂”,也导致很多学者放弃从劳动中寻找解放的可能性。但通过分析自由劳动的性质和自由劳动时间节约的问题,本文认为“必然王国”和“自由王国”不应视为不同类型的劳动在内容上的差别,而应当视为同一劳动活动的不同阶段。马克思主张物质性劳动是自由劳动的一部分,与西方马克思主义只注重从特殊形式的劳动中寻求解放的态度完全不同。进而,马克思所理解的共产主义彻底地贯彻了“节约劳动时间”的原则,它与主张安逸的空想社会主义和无政府主义对自由劳动的理解是截然对立的。共产主义中的自由劳动不是通过压缩物质性的必然劳动而实现的,而是在必然劳动之中实现的自由。

关键词：共产主义自由劳动分工劳动时间

The Use of secondary Grape Biomass in Beef Cattle Nutrition on Carcass Characteristics, Quality and shelf Life of Meat

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Food and Nutrition sciences 2024年第6期15卷 447-469页

作者： Vitor L. Molosse Guilherme L. Deolindo Rafael V. p. Lago Bruna Klein Claiton A. Zotti Marcelo Vedovato Marcylene V. da silveira priscila M. Copetti Maria R. C. schetinger Juscivete F. favero Eliana L. Fiorentin Aleksandro s. da silva Universidade do Estado de santa Catarina (UDEsC) Chapec Brazil Department of Animal science UDESC Chapec Brazil Department of Animal science Universidade do Oeste de Santa Catarina Xanxere Brazil Dean Lee Research and Extension Center Louisiana State University Alexandria LA USA Department of Biochemistry Universidade Federal de Santa Maria Santa Maria Brazil Department of Medicina Veterinria UNOCHAPEC Chapec Brasil

We determined whether the inclusion of 100 g/kg dry matter of grape pomace silage (Gps) and grape pomace bran (GpB) as substitutes for other traditional fiber sources in the diet of steers (Charolais x Nellore) would improve carcass characteristics, meat quality and composition, and shelf life. Twenty-four animals (248 ± 19.32 kg of initial body weight) were fed a high concentrate diet for 121 days. Carcass characteristics were measured, and the longissimus dorsi muscle was analyzed for fatty acid (FA) profile and composition. The meat was sliced and stored in air-permeable packages for 10 days. On each sampling day (d 1, 3, 7, and 10), oxidative stability, bacterial load, lipid and protein oxidation, and staining were analyzed. The experimental diets influenced the pH of cold carcasses only. The Gps group had a higher pH than the control. The Gps and GpB groups showed improved oxidant status (i.e., lower lipid peroxidation and concentrations of reactive oxygen species were in the meat of both groups than in control). On the first day of storage, the antioxidant enzyme glutathione s-transferase activity was more significant in the meat of the Gps and GpB groups than in the control. The bacterial loads in the meat were attenuated by Gps inclusion;there were lower total coliform counts and a trend toward lower counts for enterobacteria in the control group. The diets altered the FA profile of the meat;i.e., the GpB diet allowed for a more significant amount of the n-6 omegas in the meat, while the Gps diet showed a tendency for a more significant amount of n-6 and 9 omegas. Both diets (Gps and GpB) increased the amounts of long-chain FAs. The Gps diet decreased saturated FA levels. We conclude that the dietary treatments Gps and GpB are a promising alternative to maintain meat quality standards throughout in real-world retail conditions. These treatments gave rise to an improvement in the nutritional value of the meat due to the more significant amounts of FAs that im

关键词： Animal Nutrition Antioxidant Biomass Grape Meat Quality Microbiology Residue

physical insights into trapping effects on vertical GaN-on-si trench MOsFETs from TCAD

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Journal of semiconductors 2024年第3期45卷 45-52页

作者： NicolòZagni Manuel Fregolent Andrea Del Fiol Davide favero Francesco Bergamin Giovanni Verzellesi Carlo De santi Gaudenzio Meneghesso Enrico Zanoni Christian Huber Matteo Meneghini paolo pavan Department of Engineering“Enzo Ferrari” University of Modena and Reggio EmiliaModena 41125Italy Department of Information Engineering University of PadovaPadova 35131Italy Department of sciences and Methods for Engineering(DIsMI) University of Modena and Reggio EmiliaReggio Emilia 42122Italy EN&TECH Center University of Modena and Reggio EmiliaReggio Emilia 42122Italy Advanced Technologies and Micro systems Department Robert Bosch GmbHRenningen 71272Germany

Vertical GaN power MOsFET is a novel technology that offers great potential for power switching *** still in an early development phase,vertical GaN devices are yet to be fully optimized and require careful studies to foster their *** this work,we report on the physical insights into device performance improvements obtained during the development of vertical GaN-on-si trench MOsFETs(TMOs’s)provided by TCAD simulations,enhancing the dependability of the adopted process optimization ***,two different TMOs devices are compared in terms of transfer-curve hysteresis(H)and subthreshold slope(ss),showing a≈75%H reduction along with a≈30%ss *** allow attributing the achieved improvements to a decrease in the border and interface traps,respectively.A sensitivity analysis is also carried out,allowing to quantify the additional trap density reduction required to minimize both figures of merit.

关键词： vertical GaN trench MOsFET siO_(2) interface traps border traps hysteresis BTI

Multi-pollutant Formation and Control in pressurized Oxy-Combustion:sO_(x),NO_(x),particulate Matter,and Mercury

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Engineering 2024年第8期39卷 127-153页

作者： Gaofeng Dai Jiaye Zhang Zia ur Rahman Yufeng Zhang Yili Zhang milan Vujanović Hrvoje Mikulčić Nebojsa Manic Aneta Magdziarz Houzhang Tan Richard L.Axelbaum Xuebin Wang MOE Key Laboratory of Thermo-Fluid science and Engineering Xi’an Jiaotong UniversityXi’an 710049China school of Ecology and Environment Hainan UniversityHaikou 570228China Faculty of Mechanical Engineering&Naval Architecture University of ZagrebZagreb 10000Croatia Faculty of Mechanical Engineering University of MariborMaribor 2000Slovenia Faculty of Mechanical Engineering University of BelgradeBelgrade 11120Serbia AGH University of Krakow Krakow 30059Poland Consortium for Clean Coal Utilization Department of EnergyEnvironmental&Chemical EngineeringWashington University in St.LouisSt.LouisMO 63130USA

Oxy-combustion is a promising carbon-capture technology,but atmospheric-pressure oxy-combustion has a relatively low net efficiency,limiting its application in power *** pressurized oxycombustion(pOC),the boiler,air separation unit,flue gas recirculation unit,and CO_(2)purification and compression unit are all operated at elevated pressure;this makes the process more efficient,with many advantages over atmospheric pressure,such as low NO_(x)emissions,a smaller boiler size,and *** is also more promising for industrial application and has attracted widespread research interest in recent *** can produce high-pressure CO_(2)with a purity of approximately 95%,which can be used directly for enhanced oil recovery or ***,the pollutant emissions must meet the standards for carbon capture,storage,and *** of the high oxygen and moisture concentrations in pOC,the formation of acids via the oxidation and solution of sO_(x)and NO_(x)can be increased,causing the corrosion of pipelines and ***,particulate matter(pM)and mercury emissions can harm the environment and human *** main distinction between pressurized and atmospheric-pressure oxy-combustion is the former’s elevated pressure;thus,the effect of this pressure on the pollutants emitted from pOC—including sO_(x),NO_(x),pM,and mercury—must be understood,and effective control methodologies must be incorporated to control the formation of these *** paper reviews recent advances in research on sO_(x),NO_(x),pM,and mercury formation and control in pOC systems that can aid in pollutant control in such systems.

关键词： pressurized oxy-combustion sulfur oxides Nitrogen oxides particulate matter Mercury Direct contact cooler Carbon capture and sequestration

Malignant schwannoma of the pancreas involving transversal colon treated with en-bloc resection

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World Journal of Gastroenterology 2010年第1期16卷 119-122页

作者： Miroslav p stojanovic milan Radojkovic Ljiljana M Jeremic Aleksandar V Zlatic Goran Z stanojevic milan A Jovanovic Milos s Kostov Vuka p Katic Department of Hepato-bilio-pancreatic Surgical ClinicClinical Center Nis

pancreatic schwannoma is a very uncommon tumor of the pancreas,with only 27 cases *** pancreatic schwannomas are benign,with only four malignant tumors *** describe a case of giant malignant schwannoma of the pancreatic body and tail,which involved the transverse *** tumor was treated successfully with en bloc distal splenopancreatectomy and colon *** is believed to be the first reported radical operation for malignant schwannoma of the pancreatic body,with infiltration of the transverse colon,with excellent longterm *** patient is alive and well 28 mo after the *** authors conclude that pancreatic schwannomas should be considered in the differential diagnosis of cystic neoplasms of the pancreas,although the diagnosis can only be confirmed by microscopic *** the case of the benign tumors,local excision is adequate,but in the case of malignant schwannoma,oncological standards must be fulfilled.

关键词： pancreatic neoplasms schwannoma Colonic neoplasms surgery

potential applications of 7 Tesla magnetic resonance imaging in paediatric neuroimaging:Feasibility and challenges

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World Journal of Clinical pediatrics 2024年第2期13卷 1-6页

作者： Arosh s perera Molligoda Arachchige Letterio s politi Final Year Medical student Faculty of MedicineHumanitas UniversityPieve Emanuele 20089Italy Department of Neuroradiology IRCCS Humanitas Research HospitalRozzano 20089MilanItaly Department of Biomedical sciences Humanitas UniversityPieve Emanuele 20072MilanItaly

The integration of 7 Tesla magnetic resonance imaging(7 T MRI)in adult patients has marked a revolutionary stride in *** this article we explore the feasibility of 7 T MRI in paediatric practice,emphasizing its feasibility,applications,challenges,and safety *** heightened resolution and tissue contrast of 7 T MRI offer unprecedented diagnostic accuracy,particularly in *** range from neuro-oncology to neonatal brain imaging,showcasing its efficacy in detecting subtle structural abnormalities and providing enhanced insights into neurological *** the promise,challenges such as high cost,discomfort,and safety concerns necessitate careful *** suggests that,with precautions,7 T MRI is feasible in paediatrics,yet ongoing studies and safety assessments are imperative.

关键词： 7 Tesla magnetic resonance imaging pediatric imaging Feasibility Challenges

Ground-based and additional science support for sMILE

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Earth and planetary physics 2024年第1期8卷 275-298页

作者： J.A.Carter M.Dunlop C.Forsyth K.Oksavik E.Donovon A.Kavanagh s.E.milan T.sergienko R.C.Fear D.G.sibeck M.Connors T.Yeoman X.Tan M.G.G.T.Taylor K.McWilliams J.Gjerloev R.Barnes D.D.Billet G.Chisham A.Dimmock M.p.Freeman D.-s.Han M.D.Hartinger s.-Y.W.Hsieh Z.-J.Hu M.K.James L.Juusola K.Kauristie E.A.Kronberg M.Lester J.Manuel J.Matzka I.McCrea Y.Miyoshi J.Rae L.Ren F.sigernes E.spanswick K.sterne A.steuwer T.sun M.-T.Walach B.Walsh C.Wang J.Weygand J.Wild J.Yan J.Zhang Q.-H.Zhang planetary sciences Group School of Physics and AstronomyUniversity of LeicesterUniversity RoadLeicesterLE17RHUK Rutherford Appleton Laboratory space Science Technology Facilities CouncilOxfordshireUK school of space and Environment Beihang UniversityBeijing 100191China Key Laboratory of space Environment Monitoring and Information processing Ministry of Industry and Information TechnologyBeijing 100017China Department of space and Climate physics UCLMullard Space Science LaboratoryHolmbury St.MaryDorkingSurreyRH56NTUK Birkeland Centre for space science Department of Physics and Technology.University of BergenBergenNorway Department of physics and Astronomy University of Calgary2500 University DriveCalgaryAlbertaCanada T2N 1N4 British Antarctic survey CambridgeUK swedish Institute of space physics KirunaSweden West Highfield Campus University of SouthamptonUniversity RoadSO171BJUK Goddard space Flight Center NASAGreenbeltMarylandUSA Athabasca University AthabascaCanada EsTEC European Space AgencyNetherlands University of saskatchewan SaskatoonCanada The Johns Hopkins University Applied physics Laboratory LaurelMarylandUSA swedish Institude of space physics UppsalaSE 75121Sweden Tongji University Shanghai 200092China Center for space plasma physics Space Science Institute4765 Walnut Street Suite BBoulderColorado80301USA polar Research Institute of China Shanghai 200136China Finnish Meteorological Institute(FMI) Finland Department of Earth and Environmental sciences(Geophysics) Ludwig Maximilian University of Munich(LMU)MunichTheresienstr.41MunichD-80333Germany Canadian space Agency MontrealCanada GFZ German Research Centre for Geosciences PotsdamGermany Nagoya University Institute for Space Earth Environment ResearchCenter for Integrated Data ScienceNagoyaAichiJP 464-8601 Northumbria University Newcastle upon TyneTyne and WearUK NE18ST National space science Center Chinese Academy SciencesBeijing 100190China Arctic Geophysics University Centre in Svalbard

The joint European space Agency and Chinese Academy of sciences solar wind Magnetosphere Ionosphere Link Explorer(sMILE)mission will explore global dynamics of the magnetosphere under varying solar wind and interplanetary magnetic field conditions,and simultaneously monitor the auroral response of the Northern Hemisphere *** these large-scale responses with medium and fine-scale measurements at a variety of cadences by additional ground-based and space-based instruments will enable a much greater scientific impact beyond the original goals of the sMILE ***,we describe current community efforts to prepare for sMILE,and the benefits and context various experiments that have explicitly expressed support for sMILE can offer.A dedicated group of international scientists representing many different experiment types and geographical locations,the Ground-based and Additional science Working Group,is facilitating these *** include constructing an online sMILE Data Fusion Facility,the discussion of particular or special modes for experiments such as coherent and incoherent scatter radar,and the consideration of particular observing strategies and spacecraft *** anticipate growing interest and community engagement with the sMILE mission,and we welcome novel ideas and insights from the solar-terrestrial community.

关键词： magnetosphere ionosphere magnetosphere-ionosphere coupling ground-based experimentation sMILE conjunctions missions