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Hybrid coronary revascularization vs. percutaneous coronary interventions for multivessel coronary artery disease

Journal of Geriatric Cardiology 2021年第3期18卷 159-167页

作者： Edward L.Hannan Yi-Feng WU Kimberly Cozzens Jacqueline Tamis-Holland Frederick S.K.Ling Alice K.Jacobs Ferdinand J.Venditti Peter b.berger Gary Walford Spencer b.KingⅢ University at Albany State University of New YorkAlbanyNYUSA Mount Sinai St.Luke’s Hospital New YorkNYUSA University of Rochester Medical Center RochesterNYUSA boston Medical Center BostonMAUSA Albany Medical Center AlbanyNYUSA Unaffiliated Johns Hopkins Medical Center Emory Health System AtlantaGAUSA

ObJECTIVE Hybrid coronary revascularization(HCR)combines a minimally invasive surgical approach to the left anterior descending(LAD)artery with percutaneous coronary intervention(PCI)for non-LAD diseased coronary *** is associated with shorter hospital lengths of stay and recovery times than conventional coronary artery bypass surgery,but there is little information comparing it to isolated PCI for multivessel *** objective is to compare long-term outcomes of HCR and PCI for patients with multivessel *** This cohort study used data from New York’s cardiac surgery and PCI registries in 2010−2016 to examine mortality and repeat revascularization rates for patients with multivessel coronary artery disease who underwent HCR and *** proportional hazards methods were used to reduce selection *** were followed for a median of four *** There was a total of 335 HCR patients(1.2%)and 25,557 PCI patients(98.8%)after *** was no difference in 6-year risk adjusted survival between HCR and PCI patients 83.17%vs.81.65%,adjusted hazard ratio(aHR)=0.90(95%CI:0.67−1.20).However,HCR patients were more likely to be free from repeat revascularization in the LAD artery(91.13%vs.83.59%,aHR=0.51(95%CI:0.34−0.77)).CONCLUSIONS For patients with multi-vessel coronary artery disease,HCR is rarely *** are no differences in mortality rates after four years,but HCR is associated with lower repeat revascularization rates in the LAD artery,presumably due to better longevity in left arterial mammary grafts.

关键词： coronary revascularization mortality

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Using High-Throughput Phenotyping to Explore Growth Responses to Mycorrhizal Fungi and Zinc in Three Plant Species

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Plant Phenomics 2019年第1期1卷 121-132页

作者： S.J.Watts-Williams N.Jewell C.brien b.berger T.Garnett T.R.Cavagnaro The School of Agriculture Food and Wineand The Waite Research InstituteThe University of AdelaidePMB 1Glen OsmondSA 5064Australia Australian Research Council Centre of Excellence in Plant Energy biology The University of AdelaideGlen OsmondSAAustralia Australian Plant Phenomics Facility The Plant AcceleratorThe University of AdelaidePMB1Glen OsmondSA 5064Australia

There are many reported benefits to plants of arbuscular mycorrhizal fungi(AMF),including positive plant biomass responses;however,AMF can also induce biomass depressions in plants,and this response receives little attention in the *** phenotyping(HTP)technology permits repeatedmeasures of an individual plant’s aboveground *** examined the effect on AMF inoculation on the shoot biomass of three contrasting plant species:a vegetable crop(tomato),a cereal crop(barley),and a pasture legume(Medicago).We also considered the interaction ofmycorrhizal growth responseswith plant-available soil zinc(Zn)and phosphorus(P)*** appearance of a depression in shoot biomass due to inoculation with AMF occurred at different times for each plant species;depressions appeared earliest in tomato,then Medicago,and then *** usually positive-responding Medicago plants were not responsive at the high level of soil available P *** growth responsiveness in all three species was also highly interactive with soil Zn supply;tomato growth responded negatively to AMF inoculation in all soil Zn treatments except the toxic soil Zn treatment,where it responded *** results illustrate how context-dependentmycorrhizal growth responses are and the value of HTP approaches to exploring the complexity of mycorrhizal responses.

关键词： Species Fungi soil

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自由锻的锻造技术参数分析和锻造程序的计算

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大型铸锻件 1982年第A2期 84-89页

作者： b.berger E.Neuschütz P.braun-Angtt 傅海嘉

锻造技术参数的变化,如塑性、材料流向(延展)、形变阻抗,以及影响参数的因素,如材料、变形温度、工具和工件尺寸间的联系,对锻造设备的配置和锻造程序的计算是很必要的。这种联系已经分析、叙述过了。过去发展过两种求知锻造程序的计算... 详细信息

锻造技术参数的变化,如塑性、材料流向(延展)、形变阻抗,以及影响参数的因素,如材料、变形温度、工具和工件尺寸间的联系,对锻造设备的配置和锻造程序的计算是很必要的。这种联系已经分析、叙述过了。过去发展过两种求知锻造程序的计算方法(联机、脱机)。在这两种计算法中顾及到了上述的联系。借助于脱机计算法可以得知锻造程序。锻造程序被储存在数据存储器里并在用时调出。用这种方法在锻造企业里用多相的锻造程序储存了几百个锻造程序。在这种情况下更适合于使用发展的联机计算法。

关键词：锻造设备技术参数计算法程序自由锻数据存储器影响参数变形温度

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16MN自由锻压设备上程序控制与数据记录用过程计算机系统

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大型铸锻件 1982年第A2期 58-63页

作者： W.Richter-Reichhelm E.Nevschǘtz b.berger E.G.Kǎmper 左仲进

即使在装备有电子调节及操纵系统的锻造设备上,无论是锻造程序也好,抑或是一些重要的控制参数也好,诸如:压机行程行驶距离和操作机的接通时点,仍然要由操作人员预先给定。这就引起不在所有压次中选用最大可能的变形和最佳的行驶距离,也... 详细信息

即使在装备有电子调节及操纵系统的锻造设备上,无论是锻造程序也好,抑或是一些重要的控制参数也好,诸如:压机行程行驶距离和操作机的接通时点,仍然要由操作人员预先给定。这就引起不在所有压次中选用最大可能的变形和最佳的行驶距离,也不完全利用设备的生产能力,而使用程序控制却能避免这些缺点。曾在一台16MN的自由锻压设备上安装和试验了一个带过程计算机的程序控制系统,用新发展起来的计算方法确定锻造程序。已对人工锻造程序锻造作出的初步比较性试验表明,在程序锻造时锻造过程非常稳定,同时部分地缩短了锻造时间。

关键词：过程计算机系统程序控制系统锻压设备 16MN 数据记录自由锻造设备行驶距离

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比利时UGINE&ALZ公司Genk厂板坯连铸机的改造

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中国冶金 2004年第12期14卷 39-42页

作者： G.Moermans J.Steegmans R.Weckx b.berger J.Lanschüzer 0.Schulz M.Thalhammer 比利时UGINE&ALZ公司奥钢联工程技术公司

20 0 0年 11月 ,UGINE&ALZ授予奥钢联改造其炼钢厂的合同 ,其中包括将现有年产 6 0万t的单流板坯连铸机改造成年产 12 0万t、可单流或双流浇铸的铸机。这将是世界上最大的不锈钢板坯连铸机。所有改造和安装工作必须在 2 1天内完成以减... 详细信息

20 0 0年 11月 ,UGINE&ALZ授予奥钢联改造其炼钢厂的合同 ,其中包括将现有年产 6 0万t的单流板坯连铸机改造成年产 12 0万t、可单流或双流浇铸的铸机。这将是世界上最大的不锈钢板坯连铸机。所有改造和安装工作必须在 2 1天内完成以减少生产损失。

关键词：板坯连铸机奥钢联炼钢厂改造浇铸损失公司比利时最大世界

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Effect of Al_(2)O_(3)on the Mechanical Properties of(b_(4)C+Al_(2)O_(3))/Al Neutron Absorbing Materials

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Acta Metallurgica Sinica(English Letters) 2024年第8期37卷 1411-1420页

作者： J.X.Cai b.M.Shi N.Li Y.Liu Z.G.Zhang Y.N.Zan Q.Z.Wang b.L.Xiao Z.Y.Ma Shi‑Changxu Innovation Center for Advanced Materials Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Nuclear Equipment Division Beijing Institute of Nuclear EngineeringChina Nuclear Power Engineering Co.Ltd.Beijing 100840China Department of Materials Science School of Mechanical EngineeringShenyang UniversityShenyang 110044China

b_(4)C/Al composites are widely utilized as neutron absorbing materials for the storage and transportation of spent nuclear *** order to improve the high-temperature mechanical properties of b_(4)C/Al composites,in-situ nano-Al_(2)O_(3)was introduced utilizing oxide on Al powder *** this study,the Al_(2)O_(3)content was adjusted by utilizing spheroid Al powder with varying diameters,thereby investigating the impact of Al_(2)O_(3)content on the tensile properties of(b_(4)C+Al_(2)O_(3))/Al *** was found that the pinning effect of Al_(2)O_(3)on the grain boundaries could hinder the recovery of dislocations and lead to dislocation accumulation at high *** the result,with the increase in Al_(2)O_(3)content and the decrease in grain size,the high-temperature strength of the composites increased *** finest Al powder used in this investigation had a diameter of 1.4μm,whereas the resultant composite exhibited a maximum strength of 251 MPa at room temperature and 133 MPa at 350℃,surpassing that of traditional b_(4)C/Al composites.

关键词： Al matrix composites Neutron absorbing materials (b_(4)C+Al_(2)O_(3))/Al composites High-temperature strength

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Rare earth-doped mixed Ni-Cu-Zn ferrites as an effective photocatalytic agent for active degradation of Rhodamine b dye

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Journal of Rare Earths 2024年第3期42卷 488-496,I0003页

作者： Swapnil A.Jadhav Sandeep b.Somvanshi Sudarshan S.Gawali Kranti Zakde K.M.Jadhav Department of Physics Dr.Babasaheb Ambedkar Marathwada UniversityAurangabad431004MaharashtraIndia School of Materials Engineering Purdue UniversityWest Lafayette 47906USA University Department of basic and Applied Sciences MGM UniversityAurangabad431003MaharashtraIndia

In this study, a series of Gd^(3+)-doped mixed Ni-Cu-Zn ferrites with composition of Zn_(0.5)Ni_(0.3)Cu_(0.2)Fe_(2-x)Gd_(x)O_(4)(x = 0, 0.025, 0.05, 0.075, 0.1) was prepared using self-ignition sol-gel method. The prepared nanoparticles with an average size ranging from 22 to 26 nm show a single-phase cubic structure belonging to the spinel matrix. A rise in the Gd^(3+)concentration leads to an increase in crystallite size and lattice parameter. In Fourier transform infrared spectra, two main absorption bands belonging to the spinel structure are observed. The high-frequency bands(v_(1)) represent the tetrahedral complex, while the lowfrequency bands(v_(2)) signify the octahedral complex. The optical bandgap of the nanoferrites is found within the range of 2.91 to 2.41 eV, depending on their size. The magnetic characteristics of the material,such as saturation magnetization and coercivity are significantly altered with the concentration of Gd^(3+)in the solution. Using Rhodamine b(Rhb) as a model organic pollutant, an in-depth investigation of the photocatalytic activity of the compounds was carried out. The present outcomes show that adding an adequate amount of Gd^(3+)significantly enhances the number of hydroxyl radicals produced by the ferrite,in turn, increasing the photocatalytic activity of the material. Mechanism elucidated by scavenger studies reveals that ·OH and holes are the primary reactive radicals responsible for the degradation *** photocatalysts show an insignificant performance loss in five consecutive cycles. Thus, it is concluded that these photocatalysts are highly suitable for the remediation of dye-contaminated wastewater.

关键词： Gd^(3+)substitution Spinel ferrite Structural properties Magnetic properties Photocatalysis Rare earths

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black hole shadows in Einstein-bel-Robinson gravity

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Chinese Physics C 2024年第5期48卷 272-283页

作者： b.Hamil b.C.Lütfüoğlu Laboratoire de Physique Mathématique et Subatomique Facultédes Sciences ExactesUniversitéConstantine 1ConstantineAlgeria Department of Physics University of Hradec KrálovéRokitanského 6250003 Hradec KrálovéCzechia

Gravity models given by higher-order scalar curvature corrections are believed to bear important consequences. Einstein-bel-Robinson (EbR) gravity with quartic curvature modification motivated Sajadi et al. to explore static spherically symmetric black hole solutions using perturbative methods. In this study, inspired by their work, we investigate AdS black hole shadows in EbR gravity and demonstrate how the gravity parameter alters the energy emission rate. Finally, we address the same problem in the presence of plasma, because the black holes are thought to be surrounded by a medium that changes the geodesic of photons.

关键词： black hole shadows Einstein-bel-Robinson gravity plasma

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Soils in extraterrestrial space: Need for studies under microgravity

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Pedosphere 2024年第1期34卷 13-14页

作者： M.b.KIRKHAM Department of Agronomy Kansas State UniversityManhattan KS 66506USA

With the increased interest of plants in space, gravity cannot be ignored when studying soil-plant-water relations. Therefore, it is important to understand the water relations of soils under zero gravity in space or under reduced gravity on the Moon or Mars. This paper outlines the problems of moving water in soils under zero gravity or microgravity, as well as growing plants in these soils. It is suggested that microgravity experiments could be done on Earth using both soils and plants. Results from such experiments could be used to grow plants when mankind establishes bases on the Moon and Mars.

关键词： soils soil bases

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Water Vapor Information from Satellite and Its Applications

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Advances in Atmospheric Sciences 2024年第1期41卷 188-189页

作者： b.J.SOHN School of Earth and Environmental Sciences Seoul National UniversitySeoul 08826Korea

Water vapor is a critical component of the hydrological cycle because it plays a vital role in transporting water from one part of the cycle to *** vapor evaporated from surfaces such as oceans,lakes,and rivers conden... 详细信息

关键词： motion oceans lakes

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