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Precipitation analysis of as-cast HK40 steel after isothermal aging

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International Journal of Minerals,Metallurgy and Materials 2017年第10期24卷 1125-1133页

作者： M.l. saucedo-munoz A. Ortiz-Mariscal V.M. lopez-Hirata J.D. Villegas-Cardenas Orlando Soriano-Vargas Erika O. Avila-Davila Instituto Politecnico Nacional (ESIQIE) Apdo. Postal 118-395 Mexico D.F. 07300 Universidad Politecnica Metepec y Tultitlan Edo. Mex. Mexico Tecnológico de Estudios Superiores de Jocotitlan Jocotitlan Edo. Mex. Mexico

As-cast HK40 steel was aged at 700, 800, or 900℃ for times as long as 2000 h. Microstructural characterization showed that the primary M_7C_3 carbide network contained a substantial content of manganese, in agreement with the microsegregation of manganese calculated by Thermo-Calc using the Scheil–Gulliver module. The dissolution of primary carbides caused the solute supersaturation of austenite and subsequent precipitation of fine M_(23)C_6 carbides in the austenite matrix for aged specimens. During prolonged aging, the carbide size increased with increasing time because of the coarsening process. A time–temperature–precipitation diagram for M_(23)C_6 carbides was calculated using the Thermo-CalcPRISMA software; this diagram showed good agreement with the experimental growth kinetics of precipitation. The fine carbide precipitation caused an increase in hardness; however, the coarsening process of carbides promoted a decrease in hardness. Nanoindentation tests of the austenite matrix indicated an increase in ductility with increasing aging time.

关键词： as-cast HK40 steel carbide precipitation aging precipitation simulation

Beginning from the end:the presynaptic terminal as a pathomechanism hub in frontotemporal dementia and amyotrophic lateral sclerosis

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Neural Regeneration Research 2025年第11期20卷 3217-3218页

作者： laura Huggon Emma l.Clayton UK Dementia Research Institute at King’s College london LondonUK Department of Basic and Clinical Neuroscience Institute of Psychiatry Psychology&NeuroscienceKing’s College LondonLondonUK

Frontotemporal dementia and amyotrophic lateral sclerosis:Frontotemporal dementia(F T D)and amyo t rophic lateral sclerosis(AlS)are neurodegenerative diseases with significant overlapping *** these neurodegenerative diseases affect different neuronal populations(with FTD affecting neurons of the frontal and temporal lobes,and AlS affecting upper and lower motor neurons),these two diseases are complexly *** and AlS exist on a disease spectrum,with shared genetic causes,clinical presentations,and pathologies.

关键词： diseases amyotrophic sclerosis

Opportunities for agent based modeling of retinal stem cell transplantation

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Neural Regeneration Research 2022年第9期17卷 1978-1980页

作者： larissa M.DePamphilis Troy Shinbrot maribel Vazquez Department of Biomedical Engineering RutgersThe State University of New JerseyPiscatawayNJUSA

late stage blindness and visual impairment(BVI)affects over 400 mi l l ion adul ts *** disabilities severely impact the ability of adults to function independently,reduce their quality of life,and worsen socio-economic burdens on health care ***,the World Health Organization projects worldwide BVI from degenerated retina to more than double by the year 2050(Bourne et al.,2021).To understand the clinical problem,consider Figure 1A depicting the retina’s seven neuronal cell types that interconnect across three nuclear *** photoreceptors of the outer nuclear layer(ONl)are light sensitive neurons that absorb and convert photons into bioelectrical signals.

关键词： Figure outer convert

Phenomenological Based Soft Sensor for Online Estimation of Slurry Rheological Properties

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International Journal of Automation and computing 2019年第5期16卷 696-706页

作者： Jenny l.Diaz C. Diego A.munoz Hernan Alvarez Research Group of Dynamic Processes Universidad Nacional de Colombia-Sede MedellínFacultad de Minas.Cra 80Medellín 65-223Colombia Mathematical Optimization of Processes Centro de Ciencia BásicaUniversidad Pontificia BolivarianaCircular 1Medellín 70-01Colombia

This work proposes a soft sensor based on a phenomenological model for online estimation of the density and viscosity of a slurry flowing through a pipe-and-fittings assembly(PFA). The model is developed considering the conservation principle applied to mass and momentum transfer and considering frictional energy losses to include the variables directly affecting slurry properties. A reported proposal for state observers with unknown inputs is used to develop the first block of the observer structure. The second block is constructed with two options for evaluating slurry viscosity, generating two possible estimator structures, which are tested using real data. A comparison between them indicates different uses and capabilities according to available process information.

关键词： Soft sensor phenomenological based semi-physical model non-Newtonian fluids unknown input observer slurry flow

Morpho-Physiological Changes in Roots of Rice Seedling upon Submergence

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Rice science 2019年第3期26卷 167-177页

作者： liem T.BUI Evangelina S.EllA maribel l.DIONISIO-SESE Abdelbagi M.ISMAIl Department of Plant Biotechnology Cuu Long Delta Rice Research Institute Crop and Environmental Sciences Division International Rice Research Institute Institute of Biological Sciences University of the Philippines Los Ba?os College

Submergence is a serious environmental condition that causes large loss in rice production in rain fed lowland and flood affected area. This study evaluated morphological and physiological responses of rice roots to submergence using two tolerant rice genotypes FR13A and Swarna-Sub 1 and two sensitive ones Swarna and IR42. The tolerant genotypes had higher survival rate and less shoot elongation but greater root elongation during submergence than the sensitive ones. After submergence,the tolerant genotypes also had higher root dry weight and more active roots than the sensitive *** genotypes exhibited less root injury, with less malondialdehyde production and slower electrolyte leakage after submergence. Tolerant genotypes also maintained higher concentrations of soluble sugar and starch in roots and shoots and higher chlorophyll retention after submergence than the sensitive *** data showed that root traits such as root activity and root growth are associated with survival rate after submergence. This is probably accomplished through higher energy supply, and membrane integrity is necessary to preserve root function and reduce injury during submergence. These root traits are important for submergence tolerance in rice.

关键词： peroxidase root activity submergence rice seedling Sub1a gene

Multiple sclerosis is at a checkpoint: advancing the program

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Neural Regeneration Research 2025年第3期20卷 811-812页

作者： Brandon C.Smith Jessica l.Williams Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Biological Geologicaland Environmental SciencesCleveland State UniversityClevelandOHUSA

Multiple sclerosis(MS) is a chronic inflammatory and demyelinating disease of the central nervous system(CNS). Patients with MS experience sensory and motor function loss due to myelin and/or axon damage perpetuated b... 详细信息

关键词： Hauser sclerosis damage

Generation of brain vascular heterogeneity:recent advances from the perspective of angiogenesis

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Neural Regeneration Research 2025年第7期20卷 2013-2014页

作者： Nathanael J.lee Ryota l.Matsuoka Department of Neurosciences Lerner Research InstituteCleveland ClinicClevelandOHUSA Department of Molecular Medicine Cleveland Clinic Lerner College of MedicineCase Western Reserve UniversityClevelandOHUSA

Heterogeneous proper t i es of vascular endothelial cells in the brain:The brain displays large energy dynamics and consumption,and this high level of metabolic demands is fulfilled by a continuous supply of glucose and oxygen through its vascular *** vasculature consists of highly divergent blood vessel branches,giving rise to a dense network of capillaries that supply blood to all cells across the *** elaborated vascular network is thought to develop via angiogenesis,a process in which new blood vessels grow from pre-existing *** capillaries exhibit organotypic features distinct from other tissues and are formed primarily by two major endothelial cell(EC)types:those that form the semi-permeable blood-brain barrier(BBB)and those that develop highly permeable pores known as fenestrae(Matsuoka et al.,2022).The structural and functional differences between BBB and fenestrated vascular ECs represent a fundamental feature of brain vasculature and form the foundation for both brain function and homeostasis.

关键词： angiogenesis homeostasis network

Tertiary lymphoid structures in cancer – considerations for patient prognosis

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Cellular & Molecular Immunology 2020年第6期17卷 570-575页

作者： luis munoz-Erazo Janet l.Rhodes Valentine C.Marion Roslyn A.Kemp Department of Microbiology and Immunology University of OtagoDunedinNew Zealand Ecole Normale Superieure de lyon LyonFrance and Universite Claude Bernard Lyon 1LyonFrance

Tertiary lymphoid structures(TlS)are ectopic lymphoid formations that form within nonlymphoid *** share structural and functional characteristics with secondary lymphoid structures such as lymph nodes and can contain B-cell follicles and germinal centers surrounded by a T-cell *** have been described in several types of cancers and are usually associated with positive patient ***,TlS differ vastly in cellular composition and location within tissue *** this review,we discuss factors confounding the interpretation of the evidence for a prognostic role for TlS in cancer and frame these factors in the context of translation to regular clinical use.

关键词： tertiary lymphoid structure prognosis cancer tissue

Recovering information in probabilistic quantum teleportation

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Frontiers of physics 2019年第6期14卷 9-13页

作者： luis Roa Andrea Espinoza Ariana munoz Maria l·ladron de Guevara Departamento de Física Universidad de ConcepciónCasilla 160-CConcepciónChile Departamento de Física Universidad Católica del NorteAngamos 0610AntofagastaChile Facultad de Ingeniería Universidad Autónoma de Chile5 Poniente 1670TalcaChile

In this paper we redesign the probabilistic teleportation scheme considered in ***.A 61,034301(2000)by Wan-li li et al.,where the optimal state extraction protocol complements the basic teleportation process with a partially entangled pure state channel,in order to transfer the unknown state with fidelity *** that scheme,where the information of the unknown state is lost if the state extraction fails,our proposal teleports exactly and optimally an unknown state,and allows to recover faithfully that state when the process has not *** order to study the resilience of the scheme,we apply it to the teleportation problem through a quantum channel in a mixed state with pure *** find that a successful process transfers an unfaithful state,namely,the outcome state acquires the decoherence of the channel,but the unknown state is recovered by the sender with fidelity 1 if the teleportation *** addition,in this case,the fidelity of the teleported state has quantum features only if the channel has an amount of entanglement different from zero.

关键词： quantum information teleportation