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Estimates for Holomorphic Functions with values in C\{0,1}

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Advances in Pure Mathematics 2013年第6期3卷 586-589页

作者： P. v. Dovbush Institute of Mathematics and Computer Science Academy of Sciences of Moldova Kishinev Republic of Moldova

Extension of classical Mandelbrojt’s criterion for normality to several complex variables is given. Some inequalities for holomorphic functions which omit values 0 and 1 are obtained.

关键词： Complex Space Holomorphic Functions

Production of octyl levulinate biolubricant over modified H-ZSM-5:Optimization by response surface methodology

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Journal of Energy Chemistry 2014年第4期23卷 535-541页

作者： Kakasaheb Y.Nandiwale Sunil K.Yadava vijay v.Bokade Catalysis and Inorganic Chemistry Division CSIR-National Chemical Laboratory Pune-411008 India University Institute of Chemical Technology North Maharashtra University Jalgaon-425001 Maharashtra India

The present study highlighted the use of modified H-ZSM-5 （Meso-HZ-5） as heterogeneous catalyst for the synthesis of octyl levulinate biolubricant by catalytic esterification of biomass derived renewable levulinic acid （LA） with n-octanol. The process variables such as catalyst loading （X1）, n-octanol to LA molar ratio （X2） and reaction temperature （X3） were optimized through response surface methodology （RSM）, using Box-Behnken model. Analysis of variance was performed to determine the adequacy and significance of the quadratic model. The yield of octyl levulinate was obtained to be 99% at optimum process parameters. The developed quadratic model was found to be adequate and statistically accurate with correlation value （R2） of 0.9971 to predict the yield of octyl levulinate biolubricant. The study was also extended on the validation of theoretical and experimental data, including catalyst reusability.

关键词： biolubricant esterification H-ZSM-5 levulinic acid octyl levulinate response surface methodology

Catatonia in older adults:A systematic review

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World Journal of Psychiatry 2022年第2期12卷 348-367页

作者： Walter Jaimes-Albornoz Angel Ruiz de Pellon-Santamaria Ayar Nizama-vía Marco Isetta Ines Albajar Jordi Serra-Mestres Psychiatry Service Hospital Universitario DonostiaBasque Health Service-OsakidetzaSan Sebastian 20014GipuzkoaSpain Psychiatry Service“virgen del Cisne”Mental Health Community Center Regional Health DirectorateTumbes 24002Peru Library and Knowledge Services Central&North West London NHS Foundation TrustSt Charles’HospitalLondon W106DZUnited Kingdom Neurology Service Hospital Universitario DonostiaBasque Health Service-OsakidetzaSan Sebastian 20014GipuzkoaSpain Old Age Psychiatry Service Cardinal ClinicWindsor SL45ULUnited Kingdom

BACKGROUND Catatonia is a complex psychomotor syndrome that often goes unrecognized and untreated,even though its classification has evolved in recent *** and correct identification of catatonia allows for highly effective treatment and prevention of possible *** underrecognition of catatonia in older patients is also frequent,and research in this population is *** To conduct a systematic review of the literature on catatonia in older people to ascertain its clinical characteristics across *** Following the PRISMA guidelines,MEDLINE,EMBASE,and PsycINFO databases were searched from inception to December 2021,with a strategy aimed at identifying all articles published on catatonia in older *** and abstracts were scanned and selected independently by two *** investigating issues related to catatonia and/or catatonic symptoms in older people,with English abstracts available,were *** of selected articles were revised to identify other relevant *** In total,1355 articles were *** removing duplicates,879 *** the 879 identified abstracts,669 were excluded because they did not meet the inclusion criteria.A total of 210 articles underwent full text review,and 51 were eliminated for various *** more articles were selected from the ***,173 articles were reviewed:108 case reports,35 case series,11 prospective cohort studies,6 case-control studies,3 retrospective cohort studies and 10 *** found several particular aspects of catatonia in this *** in older patients is highly prevalent and tends to have a multifactorial *** patients,compared to younger patients,have a higher risk of developing catatonia with benzodiazepine(BZD)withdrawal,in bipolar disorder,and in the general ***,together with other risk factors,was significantly associated with the incidence of deep venous thrombosis,neuroleptic malig

关键词： Catatonia Older adults Etiology Phenomenology Prevalence Treatment

THEMIS multipoint observations of Pi2 pulsations inside and outside the plasmasphere

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THEMIS multipoint observations of Pi2 pulsations inside and ...

Ti-47Al-2W-0.5Si抗蠕变合金的高温力学行为和变形机制

中国科学院地质与地球物理研究所第11届（2011年度）学术年会

作者： v.Angelopoulos Institute of Geophysics and Planetary Physics University of California Los AngelesCaliforniaUSA

[1]Much evidence indicates that Pi2 pulsations in the inner magnetosphere can be explained as radially trapped fast-mode waves in the *** of these studies, however,are based on observations from a single spacecraft in the plasmasphere and low-latitude ground stations within several hours of local *** we present simultaneous observations of two Pi2 pulsations on 26 January 2009 by three THEMIS probes(P3,P4,and P5) and the Ascension Island(ASC) ground station(L .002, MLT 3).By using plasma density and spacecraft potential measurements,we determined that during this time P4 and P5 were located inside the plasmasphere and P3 was located outside *** is found that fast-mode components(compressional component Bz,azimuthal component Ey) observed by P4 and P5 have a high correlation with the H component at ASC while those at P3 do *** Bz oscillations at P4 are nearly in phase with ground Pi2 while those at P5 near the plasmapause are almost out of phase with the H component on the ground during the two Pi2 *** Ey -H cross phases at P4 and P5 are nearly constant at -90°for both Pi2 *** multipoint observations strongly suggest that fast-mode waves trapped in the plasmasphere are the source of the low-latitude Pi2 pulsations.

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金属学报 2001年第8期37卷 785-790页

作者：周兰章郭建亭 v.Lupinc M.Maldini 中国科学院金属研究所 CNR-TEMPE Via R.Cozzi 5320125 MilanoItaly CNR-TEMPE Via R.Cozzi 5320125 Milano

研究了Ｔｉ－４７Ａｌ－２Ｗ—０．５Ｓｉ铸造合金的力学行为和变形机制结果表明，合金的室温－高温屈服强度和６５０℃蠕变强度都超过ＩＮ７１３ＬＣ镍基高温合金的比屈服强度和比蠕变强度，表现出优异的中温力学性能在蠕变过程... 详细信息

研究了Ｔｉ－４７Ａｌ－２Ｗ—０．５Ｓｉ铸造合金的力学行为和变形机制结果表明，合金的室温－高温屈服强度和６５０℃蠕变强度都超过ＩＮ７１３ＬＣ镍基高温合金的比屈服强度和比蠕变强度，表现出优异的中温力学性能在蠕变过程中，随着载荷和温度的增加，合金的最小蠕变速率随之增大，可用蠕变方程εｍ＝Ａ（　）１０ｅｘｐ（－　）来描述．位错在界面处繁殖，并在α２／γ层片中缠结和塞积，导致合金的初始蠕变应变速率降低．当位错运动受阻时，可以通过孪生方式使内应力得到缓解．在蠕变第一阶段就可以发生孪生和剪切现象．在高温应力作用下，α２片层发生粗化和相转变此外，还对合金的实际应用效果进行了考核，并说明了该合金的发展方向．

关键词：金属间化合物力学性能蠕变 TiAl基合金

Coherent Neuron Activity in Frontal Cortex, n. Accumbens and dorsomedial Striatum during Impulsive and Self-control Behavior in Cats

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World Journal of Neuroscience 2014年第4期4卷 341-352页

作者： G. Kh. Merzhanova E. P. Kuleshova v. v. Sidorina A. v. Zaleshin Yu. A. Gerasimova Institute of Higher Nervous Activity and Neurophysiology Russian Academy of Sciences Moscow Russia

Cats placed in the situation of a choosing between a high-value time-delayed and a low-value immediate food rewards elected to wait for the preferred reward or to obtain the worse reward quickly. On the basis of the selected behavior strategy the cats were classified into three groups - self-control ones, choosing predominantly a delayed high-value food reward, impulsive, choosing predominantly an immediate low-value food reward, and ambivalent - with mixed types of reactions. The correlated firing between simultaneously recorded neurons in prefrontal cortex (PFC), n. accumbens (NAcb) and dorsomedial striatum (DMStr) during choice behavior task was studied. It was revealed that a total number of NAcb functional neuron interactions at cats showing self-control reactions exceeded that of observed at ambivalent and impulsive cats. The number of PFC and DMStr functional correlated firing at impulsive and ambivalent cats was more significant than at cats capable to self-control. Observed correlated firing between PFC and NAcb neurons (fronto-accumbal interactions) progressively increased with the shift of behavior to impulsiveness and decreased with self-control behavior. Our results demonstrate that performance of impulsive and self-control behavior alters the correlation structure of neural firing in PFC, NAcb, DMStr and suggest the key role of local PFC, NAcb, DMStr networks in realization of choice behavior.

关键词： Coherent neuron activity Choice behavior. Impulsiveness.Self-control.Neuron

Effect of welding parameters on semisolid stir welding of Mg-9Al-1Zn magnesium alloy

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Transactions of Nonferrous Metals Society of China 2016年第10期26卷 2586-2594页

作者： v.A.HOSSEINI H.AASHURI A.H.KOKABI Department of Engineering Science University West Materials Science and Engineering Department Sharif University of Technology

Semisolid stir welding of AZ91 was investigated with focus on the joining temperature and rotational speed. An Mg-25%Zn interlayer was located between two AZ91 pieces and the system was heated up to the semisolid state of base metal and interlayer. The weld seam was stirred using a drill-tip at different joining temperatures and rotational speeds. Optical and scanning electron microscopes were employedto study microstructure, cavity formation, and segregation. Hardness profile and shear punch test werealso employed to rank the welds based on their quality and homogeneity. Results showed that the lowest cavity content （2.1%） withthemaximum ultimate shear strength （about 188 MPa） was obtained in weld with the joining temperatureof530℃ and the rotational speedof1600 r/min. Low quality welds and a reduction of ultimate shear strength were observed at very high orlow rotational speeds and joining temperatures. The process, in conclusion, produced close mechanical properties to those of thebase metal and homogenous quality throughout the joint, when the intermediate temperature and rotational speeds were employed.

关键词： Mg-Al-Zn alloy mechanical stirring semisolidstir welding

溶栓治疗中纤维蛋白特异性的重要性和t-PA及pro-UK序贯协同联合运用的理论基础

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国外医学（输血及血液学分册） 1990年第4期13卷 227-228页

作者： Gurewich v 羊裔明

纤溶已被确定为血管疾病病理生理方面的介体之一,同时也被认为是有益的治疗手段.因此,了解血浆素原活化剂的基本性质的重要性和血浆素原活化的分子机制的重要性更趋明显.生理性纤溶的特点是其特异性.相反,治疗性溶栓,即使使用新的激活剂... 详细信息

纤溶已被确定为血管疾病病理生理方面的介体之一,同时也被认为是有益的治疗手段.因此,了解血浆素原活化剂的基本性质的重要性和血浆素原活化的分子机制的重要性更趋明显.生理性纤溶的特点是其特异性.相反,治疗性溶栓,即使使用新的激活剂,亦伴有非特异性蛋白溶解,这可能带来不利的副作用.Wiman和Collen为生理纤溶设计了一个模式,在这一模式中,血浆素原和纤维蛋白特异性结合为一种基本成份,它选择性地活化血浆素原,而剩下的非活化的血浆素原在其周围的血液中,这就是纤维蛋白特异性溶解的基本机制.在体外和某些动物模型中,这可以由血中天然血浆素原,组织血浆素原活化素(tissue plasminoger activator, t-PA)

关键词：血管疾病溶栓

基于剪切模量和热分析数据研究Zr_(50-x)Cu_(34)Ag_(8)Al_(8)Pd_(x)(x=0,2)非晶合金缺陷浓度演化

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物理学报 2021年第14期70卷 266-274页

作者：程怡婷 Andrey S.Makarov Gennadii v.Afonin vitaly A.Khonik 乔吉超西北工业大学力学与土木建筑学院西安710072 Department of General Physics Voronezh State Pedagogical UniversityVoronezh 394043Russia

非晶合金具有独特物理和力学性能,如何建立非晶合金微观结构非均匀性与物理/力学性能之间的关联是非晶固体的重要研究课题之一.微合金化是调控非晶合金微观结构有效手段之一.本研究以玻璃形成能力优异的Zr_(50-x)Cu_(34)Ag_(8)Al_(8)Pd_... 详细信息

非晶合金具有独特物理和力学性能,如何建立非晶合金微观结构非均匀性与物理/力学性能之间的关联是非晶固体的重要研究课题之一.微合金化是调控非晶合金微观结构有效手段之一.本研究以玻璃形成能力优异的Zr_(50-x)Cu_(34)Ag_(8)Al_(8)Pd_(x)(x=0,2)非晶合金为模型合金,借助差示扫描量热仪和电磁声转换设备,研究非晶合金铸态、弛豫态和结晶态热流和剪切模量随温度的演化规律,以及物理时效(低于玻璃转变温度)过程剪切模量的变化随时间演化规律.基于自间隙原子理论,利用热流曲线表征非晶合金在相同热历史剪切模量热效应.通过分析铸态和弛豫态自间隙缺陷浓度和激活能谱,发现结构弛豫导致自间隙缺陷浓度减小,诱导剪切模量随温度演化偏离软化过程,并伴随体系放热.与此同时,研究发现添加微量Pd元素可抑制模型合金体系原子迁移,增加特征弛豫时间.本研究从非晶合金模量热效应角度进一步理解非晶合金微观结构非均匀性.

关键词：非晶合金缺陷浓度剪切模量微观结构非均匀