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Spin Hall effect in prototype Rashba ferroelectrics GeTe and SnTe

npj Computational Materials 2020年第1期6卷 1607-1613页

作者： Haihang Wang Priya Gopal Silvia Picozzi Stefano Curtarolo Marco Buongiorno Nardelli jagoda Sławińska Department of Physics University of North TexasDentonTX 76203USA Consiglio Nazionale delle Ricerche Istituto SPINUOS L’AquilaSede di lavoro CNR-SPIN c/o Univ.G.D’Annunzio66100 ChietiItaly Center for Autonomous Materials Design Duke UniversityDurhamNC 27708USA Materials Science Electrical EngineeringPhysics and ChemistryDuke UniversityDurhamNC 27708USA

Ferroelectric Rashba semiconductors(FERSCs)have recently emerged as a promising class of spintronics *** peculiar coupling between spin and polar degrees of freedom responsible for several exceptional properties,including ferroelectric switching of Rashba spin texture,suggests that the electron’s spin could be controlled by using only electric *** this regard,recent experimental studies revealing charge-to-spin interconversion phenomena in two prototypical FERSCs,GeTe and SnTe,appear extremely ***,by employing density functional theory calculations,we investigate spin Hall effect(SHE)in these materials and show that it can be large either in ferroelectric or paraelectric *** further explore the compatibility between doping required for the practical realization of SHE in semiconductors and polar distortions which determine Rashba-related phenomena in FERSCs,but which could be suppressed by free charge carriers.

关键词： structure Rashba ferroelectric

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Milestones and current achievements in development of multifunctional bioscaffolds for medical application

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Bioactive Materials 2021年第8期6卷 2412-2438页

作者： jagoda l.towczenko Marta J.Wózniak-Budych Katarzyna Staszak Karolina Wieszczycka Stefan Jurga Bartosz Tylkowski NanoBioMedical Centre Adam Mickiewicz University in PoznanWszechnicy Piastowskiej 3PoznanPoland Institute of Technology and Chemical Engineering Poznan University of Technologyul.Berdychowo 4PoznanPoland Eurecat Centre Tecnològic de CatalunyaChemical Technologies UnitMarcel⋅líDomingo s/nTarragona43007Spain

Tissue engineering(TE)is a rapidly growing interdisciplinary field,which aims to restore or improve lost tissue *** that TE was introduced more than 20 years ago,innovative and more sophisticated trends and technologies point to new challenges and *** challenges involve the demand for multifunctional bioscaffolds which can stimulate tissue regrowth by biochemical curves,biomimetic patterns,active agents and proper cell *** those purposes especially promising are carefully chosen primary cells or stem cells due to its high proliferative and differentiation *** review summarized a variety of recently reported advanced bioscaffolds which present new functions by combining polymers,nanomaterials,bioactive agents and cells depending on its desired *** particular necessity of study biomaterial-cell interactions with in vitro cell culture models,and studies using animals with in vivo systems were discuss to permit the analysis of full material *** these bioscaffolds have shown a significant therapeutic effect in nervous,cardiovascular and muscle,tissue engineering,there are still many remaining unsolved challenges for scaffolds improvement.

关键词： Innovative materials Biomimetric materials Scaffolds Regenerative medicine

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An experimental and theoretical investigation of a small,high aspect-ratio,free-piston,two-stroke engine

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Propulsion and Power Research 2020年第4期9卷 326-343页

作者： Chiluwata E.lungu Mael Disseau Daniel C.Stubbs Jechiel jagoda David E.Scarborough General Electric Company GreenvilleSouth Carolina29615USA Georgia Institute of Technology AtlantaGeorgia30332USA Truett McConnel University ClevelandGeorgia30528USA Auburn University AuburnAlabama36849USA

This paper presents a design for a novel,palm sized,high-aspect-ratio *** simplify fabrication and keep the device unobtrusive,a design incorporating a two-cycle engine having a flat,rectangular piston with spring return was *** experimental engine based on this concept producing a significant amount of useful work was *** results were encouraging,this geometry raised many issues to be investigated and resolved,including the effects of piston sealing,scavenging,heat losses,and combustion *** to the complex interplay between these effects,experimental investigation was time consuming and simple models were found to be ***,a more complex theoretical model accounting for these effects was developed and used to evaluate the sensitivity of engine performance to each of these *** predictions of this model were used to develop recommendations for improving the experimentally developed engine.

关键词： Micro-combustion Power generation Free-piston engine Internal combustion engine Palm power

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大白鼠淋巴结移植——功能结构和细胞学的变化以及影响其再生的因素

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中国修复重建外科杂志 1992年第1期6卷 44-47页

作者：刘宁飞 jagoda Maldik Waldermar l.Olszewski 张涤生上海第二医科大学第九人民医院整复外科 Dep. Surgical Res. Transplant. Medical Res. Center Polish Academy of Sciences Warsaw.

本实验研究了大白鼠肠系膜淋巴结移植后的结构、功能以及细胞学的变化。同时观察了白细胞间介素2(Il-2)和棒状杆菌(Corynebacterium Parum C.P.)对移植后淋巴结再生的影响。结果表明淋巴结移植后体积逐渐缩小,细胞成份不断减少,丧失了... 详细信息

本实验研究了大白鼠肠系膜淋巴结移植后的结构、功能以及细胞学的变化。同时观察了白细胞间介素2(Il-2)和棒状杆菌(Corynebacterium Parum C.P.)对移植后淋巴结再生的影响。结果表明淋巴结移植后体积逐渐缩小,细胞成份不断减少,丧失了正常的组织结构和功能。而淋巴结移植后其输入淋巴管再生的失败是导致其退化的主要原因。Il-2可能具有调节淋巴结内再循环淋巴细胞的作用而有利于维持移植后淋巴结的完整性。

关键词：淋巴结移植输入淋巴管

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