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Journal of Materials Science & Technology 2015年第12期31卷 1226-1231页

作者： larisa n.dya.hkova.eugene e.feldshtein Institute of Powder Metallurgy Belarusian National Academy of Sciences Department of Mechanical engineering University of Zielona Góra

Some properties of the Fe-based P/M composites sintered and reinforced by infiltration with Cu-Sn alloy were *** is shown that the hardness of the sintered material is 2.5 times lower,tensile strength is 1.7 times lower and the wear resistance is 2.5-3.3 times lower in comparison with those of the infiltrated *** presence of pores on the friction surface of the sintered material affects the features of the wear *** to the specific morphology of copper in the infiltrated material,the phenomenon of selective mass transfer is observed and worn surfaces have a spongy-capillary texture.

关键词： Metal matrix composites(MMCs) Sintering Infiltration Strength characteristics Wear

LOW-RAnK TenSOR STRUCTURe OF SOLUTIOnS TO eLLIPTIC PROBLeMS WITH JUMPInG COeFFICIenTS

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Journal of Computational Mathematics 2012年第1期30卷 14-23页

作者： Sergey Dolgov Boris n.Khoromskij Ivan Oseledets eugene e.Tyrtyshnikov Moscow Institute of Physics and Technology Russia Max-Planck-Institute for Mathematics in Sciences Inselstr.22-26D-04103 LeipzigGermany Institute of numerical Mathematics Russian Academy of SciencesGubkina 8119991 MoscowRussia Lomonosov Moscow State University Russia University of Siedlce Poland(visiting professor)

We study the separability properties of solutions to elliptic equations with piecewise constant coefficients in Rd, d ≥ 2. The separation rank of the solution to diffusion equation with variable coefficients is prese... 详细信息

关键词： Structured matrices elliptic operators Poisson equation Matrix approxima-tions Lowrank matrices Tensors Canonical decomposition.

Contributions of Fuqing ZHAnG to Predictability,Data Assimilation,and Dynamics of High Impact Weather:A Tribute

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Advances in Atmospheric Sciences 2022年第5期39卷 676-683,I0002-I0016页

作者： Zhiyong MenG eugene e.CLOTHIAUX Department of Atmospheric and Oceanic Sciences School of PhysicsPeking UniversityBeijing 100871China Department of Meteorology and Atmospheric Science The Pennsylvania State UniversityUniversity ParkPennsylvania 16802United States

This article reviews Fuqing ZHAnG’s contributions to mesoscale atmospheric science,from research to mentoring to academic service,over his 20-year *** fundamental scientific contributions on predictability,data assimilation,and dynamics of high impact weather,especially gravity waves and tropical cyclones,are *** extremely generous efforts to efficiently transmit to the community new scientific knowledge and ideas through mentoring,interacting,workshop organizing,and reviewing are *** appreciation is given to his tremendous contributions to the development of mesoscale meteorology in China and the education of Chinese graduate students and young scientists.

关键词： predictability dynamics data assimilation high impact weather Fuqing ZHAnG contributions tribute

Correlation Structures between Satellite All-Sky Infrared Brightness Temperatures and the Atmospheric State at Storm Scales

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Advances in Atmospheric Sciences 2022年第5期39卷 714-732页

作者： Yunji ZHAnG eugene e.CLOTHIAUX David J.STenSRUD Center for Advanced Data Assimilation and Predictability Techniques and Department of Meteorology and Atmospheric ScienceThe Pennsylvania State UniversityUniversity ParkPennsylvania 16802USA

This study explores the structures of the correlations between infrared(IR)brightness temperatures(BTs)from the three water vapor channels of the Advanced Baseline Imager(ABI)onboard the GOeS-16 satellite and the atmospheric ***-based data assimilation techniques such as the ensemble Kalman filter(enKF)rely on correlations to propagate innovations of BTs to increments of model state *** the three water vapor channels are sensitive to moisture in different layers of the troposphere,the heights of the strongest correlations between these channels and moisture in clear-sky regions are closely related to the peaks of their respective weighting *** cloudy regions,the strongest correlations appear at the cloud tops of deep clouds,and ice hydrometeors generally have stronger correlations with BT than liquid *** magnitudes of the correlations decrease from the peak value in a column with both vertical and horizontal *** how the correlations decrease depend on both the cloud scenes and the cloud structures,as well as the model *** correlations between BTs and moisture,as well as hydrometeors,in fully cloudy regions decrease to almost 0 at about 30 *** horizontal correlations with atmospheric state variables in clear-sky regions are broader,maintaining non-zero values out to~100 *** results in this study provide information on the proper choice of cut-off radii in horizontal and vertical localization schemes for the assimilation of *** also provide insights on the most efficient and effective use of the different water vapor channels.

关键词： severe storm remote sensing data assimilation numerical modeling

Vagus nerve stimulation in intracerebral hemorrhage:the need for further research

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neural Regeneration Research 2025年第11期20卷 3213-3214页

作者： Sheharyar S.Baig Ali n.Ali Arshad Majid Sheffield Institute for Translational neuroscience Division of NeuroscienceThe University of SheffieldSheffieldUK

Vagus nerve stimulation(VnS)and stroke:Stroke is the second leading cause of death and the third leading cause of disability worldwide(Baig et al.,2023).There have been significant paradigm shifts in the management of acute ischemic stroke through mechanical *** chronic ischemic stroke,invasive VnS paired with rehabilitation is associated with a significant increase in upper limb motor recovery and is FDA-approved(Baig et al.,2023).There are no treatments of similar efficacy in acute intracerebral hemorrhage(ICH)where several promising trials,e.g.,TICH-2,STOP-AUST,and TRAIGe did not show improvements in functional outcomes(Puy et al.,2023).

关键词： stimulation acute

neCAB family of neuronal calcium-binding proteins in health and disease

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neural Regeneration Research 2025年第5期20卷 1236-1243页

作者： Diones Bueno Michael K.e.Schafer Sudena Wang Michael J.Schmeisser Axel Methner Institute for Molecular Medicine University Medical Center of the Johannes Gutenberg-UniversityMainzGermany Department of Anesthesiology University Medical Center of the Johannes Gutenberg-UniversityMainzGermany Institute of Anatomy University Medical Center of the Johannes Gutenberg-UniversityMainzGermany

The n-terminal eF-hand calcium-binding proteins 1–3(neCAB1–3) constitute a family of predominantly neuronal proteins characterized by the presence of at least one eF-hand calcium-binding domain and a functionally less well characterized C-terminal antibiotic biosynthesis monooxygenase domain. All three family members were initially discovered due to their interactions with other proteins. neCAB1 associates with synaptotagmin-1, a critical neuronal protein involved in membrane trafficking and synaptic vesicle exocytosis. neCAB2 interacts with predominantly striatal G-protein-coupled receptors, while neCAB3 partners with amyloid-β A4 precursor protein-binding family A members 2 and 3, key regulators of amyloid-β production. This demonstrates the capacity of the family for interactions with various classes of proteins. neCAB proteins exhibit distinct subcellular localizations: neCAB1 is found in the nucleus and cytosol, neCAB2 resides in endosomes and the plasma membrane, and neCAB3 is present in the endoplasmic reticulum and Golgi apparatus. The antibiotic biosynthesis monooxygenase domain, an evolutionarily ancient component, is akin to atypical heme oxygenases in prokaryotes but is not wellcharacterized in vertebrates. Prokaryotic antibiotic biosynthesis monooxygenase domains typically form dimers, suggesting that calcium-mediated conformational changes in neCAB proteins may induce antibiotic biosynthesis monooxygenase domain dimerization, potentially activating some enzymatic properties. However, the substrate for this enzymatic activity remains uncertain. Alternatively, calcium-mediated conformational changes might influence protein interactions or the subcellular localization of neCAB proteins by controlling the availability of protein–protein interaction domains situated between the eF hands and the antibiotic biosynthesis monooxygenase domain. This review summarizes what is known about genomic organization, tissue expression, intracellular localization, interac

关键词： calcium eF hand mitochondria nervous system signal transduction

The sexually dimorphic expression of glutamate transporters and their implication in pain after spinal cord injury

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neural Regeneration Research 2025年第11期20卷 3317-3329页

作者： Jennifer M.Colón-Mercado Aranza I.Torrado-Tapias Iris K.Salgado Jose M.Santiago Samuel e.Ocasio Rivera Dina P.Bracho-Rincon Luis H.Pagan Rivera Jorge D.Miranda Department of Physiology University of Puerto RicoMedical Sciences CampusSan JuanPRUSA national Institutes of Health National Human Genome Research InstituteBethesdaMDUSA Universidad Central del Caribe School of MedicineBayamónPRUSA University of Puerto Rico Carolina CampusCarolinaPRUSA Institute of neurobiology San JuanPRUSA

In addition to the loss of motor function,~60% of patients develop pain after spinal cord *** cellular-molecular mechanisms are not well understood,but the data suggests that plasticity within the rostral,epicenter,and caudal penumbra of the injury site initiates a cellularmolecular interplay that acts as a rewiring mechanism leading to central neuropathic *** can lead to the formation of new connections triggering abnormal sensory *** excitatory glutamate transporters are responsible for the reuptake of extracellular glutamate which makes them a critical target to prevent neuronal hyperexcitability and *** previous studies showed a sexually dimorphic therapeutic window for spinal cord injury after treatment with the selective estrogen receptor modulator *** this study,we investigated the anti-allodynic effects of tamoxifen in male and female rats with spinal cord *** hypothesized that tamoxifen exerts anti-allodynic effects by increasing the expression of glutamate transporters,leading to reduced hyperexcitability of the secondary neuron or by decreasing aberrant *** and female rats received a moderate contusion to the thoracic spinal cord followed by subcutaneous slow-release treatment of tamoxifen or matrix pellets as a control(placebo).We used von Frey monofilaments and the“up-down method”to evaluate mechanical *** treatment decreased allodynia only in female rats with spinal cord injury revealing a sexdependent *** expression profile of glutamatergic transporters(excitatory amino acid transporter 1/glutamate aspartate transporter and excitatory amino acid transporter 2/glutamate transporter-1)revealed a sexual dimorphism in the rostral,epicenter,and caudal areas of the spinal cord with a pattern of expression primarily on *** rodents showed a significantly higher level of excitatory amino acid transporter-1 expression while male rodents showed increased

关键词： allodynia central neuropathic pain eAAT-1/GLAST eAAT-2/GLT-1 glutamate transporters selective estrogen receptor modulator sexual dimorphism spinal cord injury trauma

efficient above-band-gap light emission in germanium

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Chinese Optics Letters 2009年第4期7卷 271-273页

作者： Kenneth e.Lee eugene A.Fitzgerald Lionel C.Kimerling Jurgen Michel Department of Materials Science and engineering Microphotonics CenterMassachusetts Institute of Technology

We report an above-band-gap radiative transition in the photoluminescence spectra of single crystalline Ge in the temperature range of 20-296 K. The temperature-independence of the peak position at -0.74 eV is remarkably different from the behavior of direct and indirect gap transitions in Ge. This transition is observed in n-type, p-type, and intrinsic single crystal Ge alike, and its intensity decreases with the increase of temperature with a small activation energy of 56 meV. Some aspects of the transition are analogous to III-V semiconductors with dilute nitrogen doping, which suggests that the origin could be related to an isoelectronic defect.

关键词： Activation energy Germanium Photoluminescence Semiconductor doping Single crystals

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采用特殊乳化液提高车削表面质量

现代制造 2008年第41期 48-48,50,51页

作者： eugene.feldshtein Radoslaw Maruda

研究表明，在车削加工中采取最小量润滑并加入添加剂，可以在很广的切削速度范围内改善表面质量，这是因为在添加剂中含有化合物，它可以降低工件与刀刃接触面之间的摩擦。

关键词：表面质量车削加工乳化液切削速度添加剂化合物接触面刀刃

Instantaneous frequency and wave mode identification in a magnetosheath using few spatial points

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Chinese Physics B 2013年第8期22卷 496-501页

作者： nathaniel e U Beloff n George n J Department of Physics Akwa Ibom State UniversityNigeria University of Sussex Brighton UK

Observational data such as those obtained from the magnetosheath in the downstream of earth＇s bow shock have waveforms that differ from those of sinusoidal signals. In practice, they are not even aggregates of sinusoidal signals. Therefore, the frequency decomposition for the data requires technique that will account for the time-varying features of the data that will lead to deduction of physical meaning of the observations. The combination of empirical mode decompo- sition （eMD） and Hilbert transform has been used for extracting the various contributing oscillatory modes （eMDs） and the instantaneous frequency determination （Hilbert transform） of every physically meaningful mode called intrinsic mode func- tion （IMF）. The resulting instantaneous frequencies are used to determine instantaneous wave vectors. The combination of the instantaneous frequencies and wave vectors is useful in the identification of wave modes based on the characteristics of the waves. The results show that eMD-Hilbert can be more reliable than simple Hilbert transform alone.

关键词： eMD-Hilbert transform instantaneous frequency and wave vector