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Equivalent series system to model a multiple friction pendulum system with numerous sliding interfaces for seismic analyses

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Earthquake Engineering and Engineering Vibration 2014年第1期13卷 85-99页

作者： c.s.Tsai H.c.su T.c.chiang Department of civil Engineering Feng Chia University Department of Water Resources Engineering and conservation Feng Chia University Earthquake Proof systems Inc.

current structural analysis software programs offer few if any applicable device-specifi c hysteresis rules or nonlinear elements to simulate the precise mechanical behavior of a multiple friction pendulum system(MFPs) with numerous sliding *** on the concept of subsystems,an equivalent series system that adopts existing nonlinear elements with parameters systematically calculated and mathematically proven through rigorous derivations is *** aim is to simulate the characteristics of sliding motions for an MFPs isolation system with numerous concave sliding interfaces without prior knowledge of detailed information on the mobilized forces at various sliding *** MFPs with numerous concave sliding interfaces and one articulated or rigid slider located between these interfaces is divided into two subsystems: the fi rst represents the concave sliding interfaces above the slider,and the second represents those below the *** equivalent series system for the entire system is then obtained by connecting those for each subsystem in *** equivalent series system is validated by comparing numerical results for an MFPs with four sliding interfaces obtained from the proposed method with those from a previous study by Fenz and ***,these numerical results demonstrate that an MFPs isolator with numerous concave sliding interfaces,which may have any number of sliding interfaces,is a good isolation device to protect structures from earthquake damage through appropriate designs with controllable mechanisms.

关键词： seismic isolation base isolation earthquake engineering multiple friction pendulum system structural control mathematical modeling equivalent series system

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Autoimmune pancreatitis not otherwise specified(NOs): clinical features and outcomes of the forgotten type

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Hepatobiliary & Pancreatic Diseases International 2019年第6期18卷 576-579页

作者： nicolò de Pretis Filippo Vieceli Alessandro Brandolese Lorenzo Brozzi Antonio Amodio Luca Frulloni Gastroenterology Unit Pancreas Center University of Verona

Background:Autoimmune pancreatitis(AIP)is a well-recognized fibroinflammatory disease of the *** the significant number of studies published on AIP type 1 and 2,no studies have been focused on AIP type not otherwise specified(NOs)and therefore very little is known about clinical features and long-term outcomes of these *** aim of this study was to investigate clinical and radiological features of AIP type ***:Patients classified as AIP type NOs at clinical onset included in our database prospectively maintained since 1995 were ***,clinical data were collected and ***:Forty-six patients were included in the *** clinical onset was mainly characterized by weight loss,jaundice and acute *** patients(17.4%)were reclassified as AIP type 2 during follow-up because of the development of ulcerative *** patients(15.2%)experienced relapse after steroid treatment but only one(2.2%)needed immunosuppressive drugs because of recurrent ***:AIP type NOs shares clinical features similar to AIP type 2 and a relevant proportion of patients was reclassified as AIP type 2 during follow-up because of the development of ulcerative *** risk of relapse is low but not irrelevant.

关键词： Autoimmune pancreatitis Not otherwise specified Outcome Follow-up Therapy

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Exercise preconditioning alleviates ischemia-induced memory deficits by increasing circulating adiponectin

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Neural Regeneration Research 2025年第5期20卷 1445-1454页

作者： Meifeng Zheng Borui Zhang sonata s Y Yau Kwok-Fai so Li Zhang Haining Ou Department of Rehabilitation Medicine Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation Medicine The Fifth Clinical College of Guangzhou Medical UniversityGuangzhouGuangdong ProvinceChina Key Laboratory of cNs Regeneration(Ministry of Education) Guangdong-Hong Kong-Macao Institute of CNS RegenerationJinan UniversityGuangzhouGuangdong ProvinceChina Department of Rehabilitation sciences The Hong Kong Polytechnic UniversityHong Kong Special Administrative RegionChina state Key Laboratory of Brain and cognitive science Li Ka Shing Faculty of MedicineThe University of Hong KongHong Kong Special Administrative RegionChina center for Exercise and Brain science School of PsychologyShanghai University of SportShanghaiChina Neuroscience and Neurorehabilitation Institute University of Health and Rehabilitation SciencesQingdaoShandong ProvinceChina

cerebral ischemia is a major health risk that requires preventive approaches in addition to drug *** exercise enhances neurogenesis and synaptogenesis,and has been widely used for functional rehabilitation after *** this study,we determined whether exercise training before disease onset can alleviate the severity of cerebral *** also examined the role of exercise-induced circulating factors in these *** mice were subjected to 14 days of treadmill exercise training before surgery for middle cerebral artery *** found that this exercise pre-conditioning strategy effectively attenuated brain infarct area,inhibited gliogenesis,protected synaptic proteins,and improved novel object and spatial memory *** analysis showed that circulating adiponectin plays a critical role in these preventive effects of *** activation of adiponectin receptors by Adipo Ron mimicked the effects of exercise,while inhibiting receptor activation abolished the exercise *** summary,our results suggest a crucial role of circulating adiponectin in the effects of exercise pre-conditioning in protecting against cerebral ischemia and supporting the health benefits of exercise.

关键词： adiponectin cerebral ischemia exercise pre-conditioning hippocampus memory function middle cerebral artery occlusion prefrontal cortex synaptic proteins treadmill exercise

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Machine learning empowers efficient design of ternary organic solar cells with PM6 donor

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Journal of Energy chemistry 2025年第1期 337-347页

作者： Kiran A.Nirmal Tukaram D.Dongale santosh s.sutar Atul c.Khot Tae Geun Kim school of Electrical Engineering Korea University computational Electronics and Nanoscience Research Laboratory School of Nanoscience and Biotechnology Shivaji University Yashwantrao chavan school of Rural Development Shivaji University

Organic solar cells(Oscs) hold great potential as a photovoltaic technology for practical ***, the traditional experimental trial-and-error method for designing and engineering Oscs can be complex, expensive, and time-consuming. Machine learning(ML) techniques enable the proficient extraction of information from datasets, allowing the development of realistic models that are capable of predicting the efficacy of materials with commendable accuracy. The PM6 donor has great potential for high-performance Oscs. However, it is crucial for the rational design of a ternary blend to accurately forecast the power conversion efficiency(PcE) of ternary Oscs(TOscs) based on a PM6 ***, we collected the device parameters of PM6-based TOscs and evaluated the feature importance of their molecule descriptors to develop predictive models. In this study, we used five different ML algorithms for analysis and prediction. For the analysis, the classification and regression tree provided different rules, heuristics, and patterns from the heterogeneous dataset. The random forest algorithm outperforms other prediction ML algorithms in predicting the output performance of PM6-based TOscs. Finally, we validated the ML outcomes by fabricating PM6-based TOscs. Our study presents a rapid strategy for assessing a high PcE while elucidating the substantial influence of diverse descriptors.

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TENsILE cREEP DEFORMATION AND DAMAGE BEHAVIOR IN A NIcKEL-BAsE sUPERALLOY AT 900℃

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Acta Metallurgica sinica(English Letters) 2004年第4期17卷 606-611页

作者： H.c.Yu s.s.Xie H.c.Yang Beijing Institute of Aeronautical Materials Beijing 100095 ChinaR & D Center Baosteel Co. Ltd. Shanghai 201900 ChinaCollege of Materials and Metallurgy Northeastern University Shenyang 110004 China

The tensile creep deformation and damage evolution in a Ni-base superalloy at 900℃/170MPa were investigated. At the first creep stage, abnormal creep occured due to the resolution of fine particles, and the deformation initiated from grain boundary areas. It is evident that nearly all of the dislocations were in γ matrix channels in form of dislocation pairs and the dislocations were impeded at γ/γ' interfaces, thus the dislocation networks developed deformation. At the steady creep stage, impeded dislocations atγ/γ' interfaces climbed over γ' phases by diffusion-dominant mechanism. At the last creep stage, voids were formed around carbides at grain boundary which leaded to accumulated damage and caused creep rate accelerated. With the dislocation networks being broken, the voids connected and grew into micro-cracks gradually. Finally the cracks propagated along grain boundary area and resulted in failure.

关键词： creep deformation and damage dislocation microstructure su-peralloy

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convergence,scalarization and continuity of Minimal solutions in set Optimization

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Journal of the Operations Research society of china 2024年第3期12卷 773-793页

作者： Karuna c.s.Lalitha Department of Mathematics University of DelhiDelhiDelhi110007India Department of Mathematics University of Delhi South CampusNew DelhiDelhi110021India

The paper deals with the study of two different aspects of stability in the given space as well as the image space,where the solution concepts are based on a partial order relation on the family of bounded subsets of a real normed linear *** first aspect of stability deals with the topological set convergence of families of solution sets of perturbed problems in the image space and Painlevé–Kuratowski set convergence of solution sets of the perturbed problems in the given *** convergence in the given space is also established in terms of solution sets of scalarized perturbed *** second aspect of stability deals with semicontinuity of the solution set maps of parametric perturbed problems in both the spaces.

关键词： Topological convergence Painlevé-Kuratowski convergence Upper semicontinuity Lower semicontinuity stability scalarization

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Temperature correction for Thickness Measurements of Hot Rolled steel Plates

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Journal of Iron and steel Research International 2010年第12期17卷 23-29页

作者： c Gheorghies s condurache-Bota Faculty of sciences Dunarea de Jos University

Measuring the thickness of steel plates during the hot rolling process Is crucial tor getnng me necessary feedback to obtain the desired values at room temperature. The dilatation and the phase transformations of steel occur during heating and subsequent cooling and rolling strongly influences the results of thickness measurements. The radiometrie method provides the necessary means for making real-time and fully automatized measurements of steel thickness during rolling, if only the temperature correction is precisely known and taken into consideration. This article proves that the experimental results concerning the relative variation of steel thickness and corresponding massthickness variation can be correctly explained by means of the theory of metal dilatation correlated with the theory of nuclear radiation absorption when passing through a metal or metallic alloy, such as steel.

关键词： hot rolling dilatation phase transformation temperature correction attenuation

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sources and Deficiency Diseases of Mineral Nutrients in Human Health and Nutrition:A Review

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Pedosphere 2014年第1期24卷 13-38页

作者： U.c.GUPTA s.c.GUPTA Agriculture and Agri-canada canada Crops and Livestock Research Centre The Department of Plastic surgery Loma Linda University

Mineral nutrients are fundamentally metals and other inorganic compounds. The life cycle of these mineral nutrients begins in soil, their primary source. soil provides minerals to plants and through the plants the minerals go to animals and humans; animal products are also the source of mineral nutrients for humans. Plant foods contain almost all of the mineral nutrients established as essential for human nutrition. They provide much of our skeletal structure, e.g., bones and teeth. They are critical to countless body processes by serving as essential co-factors for a number of enzymes. Humans can not utilize most foods without critical minerals and enzymes responsible for digestion and absorption. Though mineral nutrients are essential nutrients, the body requires them in small, precise amounts. We require them in the form found in crops and they can be classified into three different categories： major, secondary, and micro or trace minerals. This classification is based upon their requirement rather than on their relative importance. Major minerals such as potassium （K） and phosphorus （P） are required in amounts of up to 10 g d-1. The daily requirement of secondary and micro minerals ranges from 400 to 1 500 mg d-1 and 45 ~tg d-1 to 11 mg d-1, respectively. To protect humans from mineral nutrient deficiencies, the key is to consume a variety of foods in modest quantities, such as different whole grains, low fat dairy, and different meats, vegetables and fruits. For insurance purposes, a supplement containing various mineral nutrients can be taken daily.

关键词： deficiency diseases deficiency symptoms origin recommended daily dose toxicity

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The race towards quantum computational advantage:milestone photonic experiment

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science Bulletin 2021年第7期66卷 637-639页

作者： Fabio sciarrino nicolòspagnolo Quantum Information Laboratory Dipartimento di FisicaSapienza Universitàdi Roma

In recent years,much work has been directed to the development of technologies to enable the long-term goal of scalable,universal quantum *** effort is motivated by the promise of quantum computational speed-up in tasks such as integer factoring,quantum simulation,and solving systems of linear *** the tremendous advances in quantum technologies reported in the last few years,the implementation of a large-scale universal quantum computer is still far from our current capabilities.

关键词： equations. 量子计算 quantum

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Inverse methodology as applied to reconstruct local textile features from measured pressure field

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Journal of Materials science & Technology 2021年第12期71卷 241-247页

作者： s.Bancora c.Binetruy s.Advani comas-cardona Ecole centrale de Nantes Research Institute in Civil Engineering and Mechanics(GeM)UMR CNRS 618344321 Nantes Cedex 3France Department of Mechanical Engineering University of DelawareNewarkDelaware 19716USA

One can compute the final deformation of a known geometry under specific boundary conditions using the constitutive laws of mechanics that describe their stress strain *** such cases the initial geometry is known,and all operators mapping the deformation are defined on the reference ***,there are situations in which the final configuration of a deformation might be known but not the *** inverse formulation allows one to determine the initial geometry of a domain,given its final deformation state,the material behavior law and a set of boundary *** the present work we propose a method to reconstruct the mesoscale geometry of a textile based on its mechanical response during *** do so,stress boundary conditions are acquired by means of a pressuresensitive *** adopting an appropriate material law,the thickness and width information of the yarns are deduced from the pressure field experienced by the compacted *** 3 D scanning techniques such as-cT,the proposed method can be applied on any domain size,allowing long-range variability to be *** the best of the authors’knowledge,there are no previous works that use a pressure-sensitive film on a large domain to capture the input data for a shape *** example application serves as a demonstration of a methodology which could be applied to other classes of materials.

关键词： Textiles Pressure sensors Inverse method Digital twin Geometry reconstruction Hyperelasticity

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