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测定淬火槽对流强度的热流速仪探头的优化设计(英文)

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金属热处理 2002年第7期27卷 39-44页

作者： h.m.tensi A.haas K.Lainer G.E.Totten G.m.Webster Department of materials and Processing Technical University of MunichDepartment of Materials and ProcessingTechnical University of MunichDepartment of Materials and ProcessingTechnical University of MunichThe Dow Chemical CompanyTarrytownThe Dow Ch

淬火槽中复杂的液流形态会明显影响淬硬结果 ,因此开发一套结构紧凑的液流测量装置就显得很重要了。一个典型的淬火过程包括把已奥氏体化了的钢浸没在淬火槽中 ,这一过程势必影响液流的循环 ,使其形成不均匀的液流和热波动 ,由此而引起... 详细信息

淬火槽中复杂的液流形态会明显影响淬硬结果 ,因此开发一套结构紧凑的液流测量装置就显得很重要了。一个典型的淬火过程包括把已奥氏体化了的钢浸没在淬火槽中 ,这一过程势必影响液流的循环 ,使其形成不均匀的液流和热波动 ,由此而引起传热变化 ,导致零件的不均匀淬火。

关键词：测定淬火槽对流强度热流速仪探头优化设计

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水溶性聚合物溶液冷却特性测定建议标准

热处理技术与装备 1988年第3期 52-58页

作者： h.m.tensi 周汝霖江苏工学院

序言本文叙述金属探头浸入水中或聚合物水溶液中,测定冷却特性的方法。在探头的一部分测量温度随时间的变化,同时通过测量探头正副电极间的电导率以确定动润湿性,从而反映出膜

关键词：淬火过程膜沸腾核沸腾聚合物淬火介质润湿性表面性质中心温度电偶电导率电性冷却液蓄冷材料水溶性聚合物水溶性高分子化合物

工业淬火槽中的液流传感器—文献综述(英文)

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金属热处理 2002年第5期27卷 27-32页

作者： G.E.Totten 1,h.m.tensi 2,and G.m.Webster 1 (1 The Dow Chemical Company,Tarrytown,NY USA 2 Technical University of munich,munich,Germany) The Dow Chemical Company 美国 Tarrytown Technical University of munich 德国 Munich

造成淬火后工件硬度不均匀、热应力增加、畸变和开裂 ,主要是因为淬火槽内整个淬火区的液流不均匀。在淬火过程中 ,液流是控制淬火烈度的关键。因此 ,如何测量在淬火过程发生的液流特性很重要。迄今为止 ,市场上还没有一种可用于热处理... 详细信息

造成淬火后工件硬度不均匀、热应力增加、畸变和开裂 ,主要是因为淬火槽内整个淬火区的液流不均匀。在淬火过程中 ,液流是控制淬火烈度的关键。因此 ,如何测量在淬火过程发生的液流特性很重要。迄今为止 ,市场上还没有一种可用于热处理生产设备的设计合理、具有足够灵敏度并经久耐用的液流传感器。本文对不同传感器的各种测量原理进行了概括 ,并描述了几种最近开发的可用于淬火槽中测量液流传感器。

关键词：工业淬火槽液流传感器测量原理

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高强铝合金板材的扩散焊和超塑成型

国外导弹与航天运载器 1992年第4期 70-78页

作者： h.m.tensi m.Wittmann 鸣远

在飞机机体零部件的制造方法发展中,人们希望在不违背飞机工业严格的安全标准原则下,既能使得结构质量最轻,又能使其制造成本和材料成本最低。近几年发展的新材料和先进制造方法对此提供了重大改进的可能性。

关键词：铝合金焊接超塑性成型

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铝-硅合金树枝状晶形态学研究

轻合金加工技术 1987年第1期 2-7页

作者： h.m.tensi h.Fuchs 吴贤钧

树枝状晶组织的形成在很大程度上决定了铸件的特性。可以有目的地控制抗拉强度、延展性、抗热冲击稳定性和组织的均匀性。人们从四个方面研究了树枝状晶的形成。 1.生长的树枝状晶体顶端的形状(曲率半径R,形态稳定性) 2.树枝状晶的顶端... 详细信息

树枝状晶组织的形成在很大程度上决定了铸件的特性。可以有目的地控制抗拉强度、延展性、抗热冲击稳定性和组织的均匀性。人们从四个方面研究了树枝状晶的形成。 1.生长的树枝状晶体顶端的形状(曲率半径R,形态稳定性) 2.树枝状晶的顶端温度T 3.初生晶枝间距e 4.次生晶枝间距d 本文就后两个问题进行探讨,由于后者对工艺性能具有重要意义,故首先研究

关键词：初晶树枝状晶体弗莱明局部凝固时间结晶过程粗化过程冯德尔特征值本征值金属液

Clinical,laboratory,and therapeutic differences between immunoglobulin E-mediated and non-immunoglobulin E-mediated cow’s milk protein allergy in children

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World Journal of Clinical Pediatrics 2025年第1期14卷 78-92页

作者： hasan m Isa marwa J Abdulnabi Nawra S Naser Fatema N Lahmda Noor m AlAnsari Zahra h Isa Afaf m mohamed Department of Pediatrics Salmaniya Medical ComplexManama 26671Bahrain Department of Pediatrics Arabian Gulf UniversityManama 26671Bahrain Faculty of medicine Mansoura UniversityMansoura 35516Egypt Public health Directorate Ministry of HealthManama 26671Bahrain

BACKGROUND Although breast milk is ideal for newborns,in some cases,it is replaced with cow’s milk,which contains proteins that increase the risk of cow’s milk protein allergy(CmPA).AIm To evaluate CmPA prevalence in Bahrain and compare clinical characteristics of children with immunoglobulin E(IgE)-and non-IgE-mediated *** This retrospective cohort study examined children with CmPA diagnosed at the pediatric gastroenterology outpatient clinic of the Salmaniya medical Complex,Bahrain,between 2014 and 2022,and assessed CmPA *** presentations,laboratory findings,dietary modifications,and outcomes were compared between children with IgE-mediated and non-IgE-mediated *** variables were compared using Fisher’s exact test or Pearson’sχ2 test,whereas continuous variables were compared using Student’s t-test or the mann-Whitney U *** Of 8332 patients,6022(72.3%)adhered to their *** them,618(10.3%)were suggested of having CmPA and 595(96.3%)were included;CmPA prevalence was 2%.most patients were Bahraini(93.8%)and males(55.3%).Non-IgE-mediated type accounted for 77.3%cases and IgE-mediated type,22.7%.IgE-mediated CmPA presented more in boys(P=0.030),and later in life(5.1 months±4.5 months vs 4.2 months±4.2 months,P=0.016,95%CI:0.08-1.73),had more associated diseases(Ph more cutaneous(P=0.024)and respiratory(P=0.003)manifestations,severe symptoms[rash/dry skin(P=0.031),facial swelling/angioedema(P=0.003),failure to thrive(P=0.013),apparent life-threatening event(Physical findings(P=0.002)than non-IgE-mediated *** patients were exclusively fed cow milk formula(50.3%).The amino acid-based formula(AAF)was most prescribed(60.5%)with no difference between the two types(P=0.173).Although breastfeeding was recommended to 49.6%,only 8.2%were exclusively ***-mediated CmPA was associated with a longer follow-up duration than non-IgE-mediated CmPA(17.3 months±14.0 mo

关键词： Children milk allergy Immunoglobulin E Breastfeeding Infant formula Bahrain

Effect of Ni^(+2)-substituted Fe_2TiO_5 on the h_2-reduction and CO_2 Catalytic Decomposition Reactions at 500℃

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Journal of materials Science & Technology 2006年第6期22卷 846-850页

作者： m.h.Khedr Chemistry Department Faculty of ScienceBenisuef UniversityEgypt

CO2 is a major component of the greenhouse gases, which causes the global warming. To reduce CO2 gas, high activity nanosized Ni＋2 substituted Fe2TiO5 samples were synthesized by conventional ceramic method. The effect of the composition of the synthesized ferrite on the h2-reduction and CO2-catalytic decomposition was investigated. Fe2TiO5 （iron titanate） phase that has a nanocrystallite size of -80 nm is formed as a result of heating Fe2O3 and TiO2 while the addition of NiO leads to the formation of new phases （-80 nm） NiTiO3 and NiFe2O4, but the mixed solid of NiO and Fe2O3 results in the formation of NiFe2O4 only. Samples with Ni^＋2=0 shows the lowest reduction extent （20%）; as the extent of Ni＋2 increases, the extent of reduction increases. The increase in the reduction percent is attributed to the presence of NiTiO3 and NiFe2O4 phases, which are more reducible phases than Fe2TiO5. The CO2 decomposition reactions were monitored by thermogravimetric analysis （TGA） experiments. The oxidation of the h2-reduced Ni＋2 substituted Fe2TiO5 at 500℃ was investigated. As Ni^＋2 increases, the rate of reoxidation increases. Samples with the highest reduction extents gave the highest reoxidation extent, which is attributed to the highly porous nature and deficiency in oxygen due to the presence of metallic Fe, Ni and/or FeNi alloy. X-ray diffraction （XRD） and transmission electron microscopy （TEm） of oxidized samples show also the presence of carbon in the sample containing Ni＋2〉0, which appears in the form of nanotubes （25 nm）.

关键词： Nanocrystallite Ferrite Titanate Reduction CO2 decomposition Carbon nanotubes

Neuroinflammation as a therapeutic target in huntington's disease

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Neural Regeneration Research 2025年第3期20卷 817-818页

作者： Andrea Kwakowsky Thulani h.Palpagama Center for Brain Research and Department of Anatomy and medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CentreUniversity of GalwayGalwayIreland

In 1872, George huntington presented his essay “On Chorea” to the meigs and mason Academy of medicine and, in doing so, detailed a disease that would later bear his name. huntington's disease(hD) is a genetic, neurodegenerative disease that manifests as the loss of motor control,cognitive impairment,and mood and psychiatric changes in paents.

关键词： huntington inflammation medicine

Glial response in the midcingulate cortex in huntington’s disease

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Neural Regeneration Research 2025年第1期20卷 207-208页

作者： Thulani h.Palpagama Andrea Kwakowsky Center for Brain Research and Department of Anatomy and medical Imaging Faculty of Medical and Health SciencesUniversity of AucklandAucklandNew Zealand Pharmacology and Therapeutics School of MedicineGalway Neuroscience CenterUniversity of GalwayGalwayIreland

huntington’s disease(hD)is a genetic disease characterized by the progressive degeneration of the striatum and *** can present with a variety of symptoms that can broadly be classified into motor symptoms,inclusive of choreatic movements and rigidity,mood and psychiatric symptoms,such as depression and apathy,and cognitive symptoms,such as cognitive *** causal mutation underlying hD results from an expansion of a CAG repeat sequence on the IT15 gene,resulting in the formation and accumulation of a mutant huntingtin protein.

关键词： huntington degeneration cortex