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Unusual He-ion irradiation strengthening and inverse layer thickness-dependent strain rate sensitivity in transformable high-entropy alloy/metal nanolaminates:A comparison of fe_(50)Mn_(30)Co_(10)Cr_(10)/Cu vs fe_(50)Mn_(30)Co_(10)Ni_(10)/Cu

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Journal of Materials Science & Technology 2022年第21期116卷 199-213页

作者： Y.f.Zhao H.H.Chen D.D.Zhang J.Y.Zhang Y.Q.Wang K.Wu G.Liu J.Sun State Key Laboratory for Mechanical Behavior of Materials Xi’an Jiaotong UniversityXi’an 710049China

In this work,we prepare transformable HEA/Cu nanolaminates(NLs)with equal individual layer thick-ness(h)by the magnetron sputtering technique,i.e.,fe_(50)Mn_(30)Co_(10)Cr_(10)/Cu and fe_(50)Mn_(30)Co_(10)Ni_(10)/Cu,and comparatively study He-ion irradiation effects on their microstructure and mechanical *** ap-pears that the as-deposited HEA/Cu NLs manifest two size h-dependent hardness regimes(i.e.,increased hardness at small h and hardness plateau at large h),while the He-implanted ones exhibit monotonically increased *** to the fashion that smaller h renders less irradiation hardening in bimetal NLs,the fe_(50)Mn_(30)Co_(10)Cr_(10)/Cu NLs manifest the trend that smaller h leads to greater irradiation *** contrast,the fe_(50)Mn_(30)Co_(10)Ni_(10)/Cu NLs exhibit the maximum irradiation hardening at a critical h=50 *** this critical size,smaller h results in lower radiation hardening(similar to bimetal NLs),while above this size,smaller h results in greater radiation hardening(similar to fe_(50)Mn_(30)Co_(10)Cr_(10)/Cu NLs).Moreover,these transformable HEA/Cu NLs display inverse h-dependent strain rate sensitivity(SRS m)before and after He-ion ***,compared with as-deposited samples,the irradi-ated fe_(50)Mn_(30)Co_(10)Cr_(10)/Cu NLs display reduced SRS,while the irradiated fe_(50)Mn_(30)Co_(10)Ni_(10)/Cu NLs dis-play enhanced *** unusual size-dependent irradiation strengthening and inverse h effect on SRS in irradiated samples were rationalized by considering the blocking effects of He bubbles on dislocation nucleation and motion,i.e.,dislocations shearing or bypassing He bubbles.

关键词： High entropy alloy/metal nanolaminates Interfaces Irradiation hardening Strain rate sensitivity Size effects

Consequences of unilateral cryptorchidism on semen and sperm characteristics in West African Dwarf Goats

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Asian pacific Journal of Reproduction 2018年第4期7卷 172-177页

作者： Chike f.Oguejiofor Izuchukwu S.Ochiogu Okechi L.Okoro Vitalis U.Ogbu Department of Veterinary Obstetrics and Reproductive Diseases Faculty of Veterinary MedicineUniversity of NigeriaNsukka 410001Nigeria

Objective: To evaluate the influence of unilateral cryptorchidism on semen and sperm characteristics in West African Dwarf (WAD) bucks. Methods: Semen was collected using electroejaculator from five unilaterally cryptorchid (UC) and five normal (non-cryptorchid) WAD bucks and analyzed for gross, microscopic and biochemical characteristics. Results:Gross semen evaluation showed no differences between the groups in semen color, viscosity and pH, whereas the normal bucks yielded semen with significantly higher specific gravity (P=0.0436) and volume (P=0.0388) than the UC group. following semen microscopic evaluation, the percentage of sperm vitality (live sperm) was not significantly different between both groups. However, UC bucks yielded semen with significantly lower sperm motility (P=0.0387), sperm concentration per mL (P=0.0020) and total sperm count per ejaculate (P=0.0074). The percentage total sperm abnormality was also higher (Pf UC goats. Abnormalities observed included sperm with cytoplasmic droplets, looped tails, coiled tails and tailless heads. Sperm morphometry showed no differences in the sperm head length and head width between the groups. Biochemical semen evaluation did not reveal any differences between the groups in the concentration of seminal plasma total protein, catalase activity and lipid peroxidation level. Conclusions: Unilateral cryptorchidism significantly affected the quantity and quality of semen and spermatozoa in affected WAD bucks. Due to the hereditary attribute of the condition, it is recommended that animals with this condition should not be used in breeding to forestall increasing prevalence of cryptorchidism in goats.

关键词： Cryptorchidism Goat Semen Spermatozoa

Individual differences in transcranial electrical stimulation current density

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The Journal of Biomedical Research 2013年第6期27卷 495-508页

作者： Michael J Russell Theodore Goodman Ronald Pierson Shane Shepherd Qiang Wang Bennett Groshong David f Wiley Aaken Research Institute Inc. Sutter Center for Psychiatry Brain Image Analysis LLC Radiological Associates of Sacramento Inc. Stratovan Corp.

Transcranial electrical stimulation （TCES） is effective in treating many conditions, but it has not been possible to accurately forecast current density within the complex anatomy of a given subject＇s head. We sought to predict and verify TCES current densities and determine the variability of these current distributions in patient-specific models based on magnetic resonance imaging （MRI） data. Two experiments were performed. The first experiment estimated conductivity from MRIs and compared the current density results against actual measurements from the scalp surface of 3 subjects. In the second experiment, virtual electrodes were placed on the scalps of 18 subjects to model simulated current densities with 2 mA of virtually applied stimulation. This procedure was repeated for 4 electrode locations. Current densities were then calculated for 75 brain regions. Comparison of modeled and measured external current in experiment 1 yielded a correlation of r = .93. In experiment 2, modeled individual differences were greatest near the electrodes （ten-fold differences were common）, but simulated current was found in all regions of the brain. Sites that were distant from the electrodes （e.g. hypothalamus） typically showed two- fold individual differences. MRI-based modeling can effectively predict current densities in individual brains. Significant variation occurs between subjects with the same applied electrode configuration. Individualized MRI- based modeling should be considered in place of the 10-20 system when accurate TCES is needed.

关键词： RI modeling current density transcranial-stimulation tDCS

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基于实物期权理论的风电投资决策

电力系统自动化 2009年第21期33卷 19-23页

作者：刘敏吴复立贵州大学电气工程学院贵州省贵阳市550003 香港大学电机电子工程系

与传统的能源发电投资相比,风电投资具有更大的投资风险。在目前的技术水平下,风电的大力发展离不开国家的政策扶持。无论对风电投资者而言,还是对风电投资政策制定者而言,均迫切需要一个可将风险量化的投资辅助决策工具。基于实物期权... 详细信息

与传统的能源发电投资相比,风电投资具有更大的投资风险。在目前的技术水平下,风电的大力发展离不开国家的政策扶持。无论对风电投资者而言,还是对风电投资政策制定者而言,均迫切需要一个可将风险量化的投资辅助决策工具。基于实物期权理论,文中建立了适用于中国风电投资环境的风电项目投资决策模型。该模型考虑了风电上网电价的不确定性、风电场投资及运行成本、投资政策、投资时机等因素。算例分析表明该模型可为投资者选择合适的投资时机提供决策参考,另外还可作为政策制定者制定合理投资政策的量化分析工具。

关键词：风电发电投资实物期权

Nurses’ Experiences of Using the Liverpool Care Pathway Plan in Hospitalized Patients with Heart failure in the End-of-Life Stage: A Qualitative Content Analysis

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Open Journal of Nursing 2016年第8期6卷 591-599页

作者： Randi Hove Nina fålun Bengt fridlund Institute of Nursing Department of Health and Social Sciences Bergen University College Bergen Norway Department of Heart Disease F&oslashrde Hospital F&oslashrde Norway Department of Heart Disease Haukeland University Hospital Bergen Norway School of Health and Welfare J&oumlnk&oumlping University J&oumlnk&oumlping Sweden

Background: The introduction of care pathway plans for end-of-life cares such as the Liverpool Care Pathway (LCP) reveals a unique possibility for inter professional collaboration. Knowledge of symptom relief and how to meet the patients’ needs at the last stage of the palliative phase are essential for the nurses’ approach and care actions, but the documentation of such implementations is still rare and sometimes criticized. Aim: To explore and describe nurses’ experiences of using the LCP plan with patients hospitalized with heart failure at the end-of-life stage. An explorative design was applied, using qualitative content analysis of 20 interviews with nurses practicing the LCP plan in two district hospitals in Norway. Results: The nurses found the LCP plan as quality assurance for treatment and care in patients with heart failure in the last hours and days of life. The use of the LCP plan implied: 1) individualized adjustment, 2) symptom relief and 3) a holistic approach. Conclusion: Nurses experienced that using the LCP plan as a comprehensive action plan contributed in the decision making process and improved inter professional communication. Using the LCP plan should be seen as a tool to practice individualized and holistic nursing to patients at the end-of-life and their families, as well as a purposeful relief of symptoms associated with heart failure.

关键词： End-of-Life Care Heart failure Nursing Palliative Care Qualitative Method

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动态变化的细胞外基质

国外医学（肿瘤学分册） 1989年第3期16卷 162-163页

作者： Gorstein f 柯昌庶

细胞外基质是正常、受损伤及肿瘤性组织内的结缔组织成分,以前一直认为是一种被动的无活力的结构支架,然而最近的工作已改变了此概念。细胞外基质为多种生理、病理过程提供甚至控制着动态变化的环境。这种支架不仅参与维持组织修复、生... 详细信息

细胞外基质是正常、受损伤及肿瘤性组织内的结缔组织成分,以前一直认为是一种被动的无活力的结构支架,然而最近的工作已改变了此概念。细胞外基质为多种生理、病理过程提供甚至控制着动态变化的环境。这种支架不仅参与维持组织修复、生长、发育过程中正常组织完整性的维持,而且是抵抗恶性肿瘤侵袭和转移的第一道防线。

关键词：细胞外基质动态变化

Nuclear Energy for Sustainable Economic Development

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Journal of Water Resource and Protection 2016年第9期8卷 865-872页

作者： f. D’Auria A. Bousbia Salah Dipartimento di Ingegneria Meccanica Nucleare e della Produzione Pisa Italy

The discovery and the application of nuclear energy constitute the most important technological achievement of the past century. However, the development and the exploitation of this technology have been remarkably smaller than foreseeable. An overview of the significant features of the nuclear technology including the comparison with competitive energy sources is made. The “embedded” safety engineering and the pollution are discussed and the main features are mentioned. Indeed, nuclear technology can be applied for the sustainable society development by producing substantial amount of clean water from the ocean. The idea is to build up nuclear power plant sites that produce desalinated water and pump it several tens of kilometers away to form a lake into a desert region. This could help to establish the conditions for an agriculture-based civilization.

关键词： Nuclear Energy Sea Water Desalination Economic Development

Information Infrastructure and Manufacturing

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Information Infrastructure and Manufacturing

1996 International Conference on Information Infrastructure(ICII’96)

作者： f.M.（Tim）farrell National Information Infrastructure Testbed（NIIT）Director of Agile Manufacturing 3M Company St.PaulMinnesota USA 1517 Blake St.

＜正＞*** will discuss the implications of applying information technology to improve manufacturing *** understand the challenges created by merging manufacturing and NII technologies,NIIT is undertaking two complementary"agile manufacturing"projects,including our Enhanced Product Realization initiative with Caterpillar,Inc.,a global manufacturer of earthmoving equipment.

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北欧林纸——世界林纸工业的未来

中华纸业 2003年第5期24卷 57-58页

作者： f & P Group f & P Group

北欧的森林覆盖率属世界之最.北欧各国通过合理规划、利用和管理这一自然资源,已使自己的林纸工业得到了迅速的发展.在近年北美林纸工业逐渐萎缩的情况下,世界林纸技术的重心已转移到了北欧.而在北欧各国中,芬兰的林纸技术最显突出.

关键词：林纸工业北欧造纸技术发展情况芬兰生产经营规模化国际化