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Influence of alkali mixed effect on the mixing enthalpy in 0.75B_2O_3-0.25[xNa_2O-(1-x)K_2O]glass system

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Chinese Chemical Letters 2008年第10期19卷 1252-1255页

作者： A.Kouyate A.p.a.oussou A.Yapi D.Diabate J.Rogez A.Trokourey Laboratoire de Chimie-physique UFR-SSMTUniversité de Cocody22 BP 582 Abidjan 22Cote d'Ivoire Institut des Matériaux de Microélectroniquede Nanoscience de ProvenceIM2NPUMR 6242CNRSUniversité Paul CézanneMarseilleFaculté des Sciences et Techniques de St Jérme13397 Marseille Cedex 20France

The mixed alkali effect was investigated in the glass system 0.75B2O3-0.25[xNa2O-（1 -x）K20] through thermodynamic properties. The calorimetric measurements were performed in HF solution calorimetry at 298 K. The mixing enthalpy values show non-linear behaviour upon substitution of one alkali ion by another. This thermodynamic non-ideality is caused by the slight variations of distance between metallic cations, the macromolecular structure being unchanged. It can be exp.a.ned, at least qualitatively, using electrolyte theory based on the Coulombic interactions of charged species originally developed by Debye and Hückel.

关键词： Alkali mixed effect Calorimetry Mixing enthalpy Coulombic interactions

Evolution of microstructure, p.a.e composition, and tensile properties of severely cold deformed titanium metastable β alloy in rapid continuous heating

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Transactions of Nonferrous Metals Society of China 2014年第5期24卷 1365-1371页

作者： p.E.MARKOVSKY V.I.BONDARCHUK YU.V.MATVIYCHUK O.p.KARASEVSKA G.V.Kurdyumov Institute for Metal physics National Academy of Sciences of Ukraine

Influence of severe cold deformation of titanium alloy Ti-1.5%A1-6.8%Mo-4.5%Fe in metastable β condition on the evolution of p.a.e composition, microstructure, and tensile properties during continuous rapid heating was studied. As-deformed alloy was characterized by quasi-amorphous single-p.a.e β condition with an abnormal temperature dependence of electric resistance that was normalized after 48 h exposure at room temperature as a result of isothermal ω p.a.e precipitation. Subsequent rapid heating with a rate of 5 ℃/s caused recovery and recrystallization. Tensile properties of the alloy after different treatments were determined and discussed.

关键词： titanium alloy severe cold deformation rapid heating recovery and recrystallization p.a.e composition microstructure mechanical properties

Non-thermal p.a.ma for exhaust gases treatment

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Frontiers of Mechanical Engineering 2015年第3期10卷 301-305页

作者： Elvia ALVA R. Marquidia pACHECO p.l Fernando GOMEZ B. Joel pACHECO p. Arturo COLIN C Victor SANCHEZ-MENDIETA Ricardo VALDIVIA B Alfredo SANTANA D. Jose HUERTAS C Hilda FRIAS p. Instituto Nacional de Investigaciones Nucleates Ocoyoacac 52750Mexico Universidad Autonoma del Estado de Mexico Toluca 50000 Mexico Instituto Tecnologico y de Estudios Superiores de Monterrey CampusToluca 50110 Mexico

This article describes a study on a non-thermal p.a.ma device to treat exhaust gases in an internal combustion engine. Several tests using a p.a.ma device to treat exhaust gases are conducted on a Honda GX200- 196 cm3 engine at different rotational speeds. A p.a.ma reactor could be efficient in degrading nitrogen oxides and particulate matter. Monoxide and carbon dioxide treatment is minimal. However, achieving 1%-3% degradation may be interesting to reduce the emission of greenhouse gases.

关键词： p.a.ma treatment NOx CO CO2 particulatematter vehicle

Transarterial chemoembolization using degradable starch microspheres and iodized oil in the treatment of advanced hepatocellular carcinoma: evaluation of tumor response, toxicity, and survival

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Hepatobiliary & pancreatic Diseases International 2007年第3期6卷 259-266页

作者： Timm D Kirchhoff Joerg S Bleck Arne Dettmer Ajay Chavan Herbert Rosenthal Sonja Merkesdal Bernd Frericks Lars Zender Nisar p Malek Tim F Greten Stefan Kubicka Michael p Manns Michael Galanski Department of Diagnostic Radiology Hannover Medical School Germany Department of Gastroenterology Hepatology and Endocrinology Hannover Medical School Germany Department of Diagnostic and Interventional Radiology Klinikum Oldenburg Germany Division of Rheumatology Hannover Medical School Germany Department of Radiology and Nuclear Medicine Campus B.F-Charité-University Medicine Berlin Germany

BACKGROUND: In a multidisciplinary conference patients with advanced non-resectable hepatocellular carcinoma (HCC) were stratified according to their clinical status and tumor extent to different regional modalities or to best supportive care. The present study evaluated all patients who were stratified to rep.a.ed transarterial chemoembolization (TACE) from 1999 until 2003 in terms of tumor response, toxicity, and survival. A moderate embolizing approach was chosen using a combination of degradable starch microspheres (DSM) and iodized oil (Lipiodol) in order to combine anti-tumoral efficiency and low toxicity. METHODS: Fourty-seven patients were followed up prospectively. TACE treatment consisted of cisp.a.in (50 mg/m2), doxorubicin (50 mg/m2), 450-900 mg DSM, and 5-30 ml Lipiodol. DSM and Lipiodol were administered according to tumor vascularization. patient characteristics,toxicity, and complications were outlined. In multivariate regression analyses of pre-treatment variables from a prospective database, predictors for tumor response and survival after TACE were determined. RESULTS: 112 TACE courses were performed (2.4±1.5 courses per patient). Mean maximum tumor size was 75 (± 43) mm, in 68% there was bilobar disease. Best response to TACE treatment was: progressive disease (pD) 9%, stable disease (SD) 55%, partial remission (pR) 36%, and complete remission (CR) 0%. Multivariate regression analyses identified tumor size ≤75 mm, tumor number ≤5, and tumor hypervascularization as predictors for pR. The overall 1-, 2-, and 3-year-survival rates were 75%, 59%, and 41%, respectively, and the median survival was 26 months. Low α-fetoprotein levels (pR as best response to TACE (Odds ratio=6.7) were significantly associated with long term survival (>30 months, R2=36%). Grade 3 toxicity occurred in 7.1% (n=8), and grade 4 toxicity in 3.6% (n=4) of all courses in terms of reversible leukopenia and thrombocytopenia. The incidence of major

关键词： carcinoma, hepatocellular transarterial chemoembolization degradable starch microspheres Lipiodol tumor response survival

Analysis of Reliability for 3-State Device Network with Link-Capacities

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Journal of Systems Engineering and Electronics 1999年第2期10卷 69-74页

作者： Zhang Ying Liu Yanqiu(Department of Mathematics and physics, Shenyang polytechnic University,110023, p. R. China)Wang Dingwei(Department of Systems Engineering, Northeastern University,Shenyang 110023, p. R.China) Department of Mathematics and physics Shenyang Polytechnic University 110023 P. R. China Department of Systems Engineering Northeastern University Shenyang 110023 P. R. China

This paper presents a concept of the 3-state device system with link-capacity, whichcan, besides its normal operative state, assume two different failure states: an open-mode and ashorted-mode failure state. The 3-state system reliability analysis often uses flow required andprobability of the device to compute the probability of the system with link-capacity. We use themethod of max-flow and min-cut theorem, give four theorems to reduce 3-state device network withlink-capacity reliability problems to 2-state problems. For p.a.tical, relevant network sizes (up to100 components), the algorithm is fast and efficient.

关键词： Reliability analysis 3-state system Structure function Capacity.

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失谐叶片轮盘的减缩建模及动力响应预测方法

航空学报 2015年第10期36卷 3305-3315页

作者：臧朝平段勇亮 E.p.pETROV 南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室南京210016 塞克斯大学工程与信息学院

为解决高保真失谐叶盘计算量大的问题,提出了一种新的减缩建模及动力响应预测方法。该方法对叶盘单扇区有限元模型进行圆周对称分析,获取谐调叶盘在局部坐标系下的基本模态特性。同时,运用主节点的概念,仅对少量节点进行模态分析,在大... 详细信息

为解决高保真失谐叶盘计算量大的问题,提出了一种新的减缩建模及动力响应预测方法。该方法对叶盘单扇区有限元模型进行圆周对称分析,获取谐调叶盘在局部坐标系下的基本模态特性。同时,运用主节点的概念,仅对少量节点进行模态分析,在大大降低矩阵维度的同时获取准确的失谐模态特性。在动力响应预测分析时,利用失谐固有频率点处响应的基本特性,仅选取危险频段内、危险叶片上的危险节点进行响应分析计算,既极大地提高了运算效率,又能够准确地获取叶盘最大受迫响应幅值。实例分析结果表明:相较于传统的有限元方法,该方法中模态分析的求逆过程矩阵维度从150万下降到384,计算所得的前50阶固有频率的精度保持在0.005%以内,最大响应计算过程运算量下降超过99%时,仅存在-0.35%的误差。

关键词：失谐叶盘减缩建模动力学响应预测主节点

An L-band emitter with quantum memory in silicon

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npj Computational Materials 2022年第1期8卷 2498-2503页

作者： péter Udvarhelyi Anton pershin péter Deák Adam Gali Wigner Research Centre for physics P.O.Box 49H-1525BudapestHungary Budapest University of Technology and Economics Institute of PhysicsDepartment of Atomic PhysicsMűegyetem rakpart 3.1111BudapestHungary

Fluorescent centres in silicon have recently attracted great interest,owing to their remarkable properties for quantum ***,we demonstrate that the C-centre in silicon can realise an optically readable quantum register in the L-band wavelength region where the transmission losses in commercial optical fibres are *** in-depth theoretical characterisation confirms the assignment of the C-centre to the carbon-oxygen interstitial pair *** further explore its magneto-optical properties,such as hyperfine and spin-orbit coupling constants from first principles calculations,which are crucial for tight control of the quantum states of the triplet electron *** on this data,we set up quantum optics protocols to initialise and read out the quantum states of the electron spin,and realise a quantum memory by transferring quantum information from the electron spin to proximate ^(29)Si nuclear *** findings establish an optically readable long-living quantum memory in silicon where the scalability of qubits may be achieved by CMOS-compatible technology.

关键词： quantum centre optics

Impact of mycotoxins and their metabolites associated with food grains

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Grain & Oil Science and Technology 2023年第1期6卷 1-9页

作者： Chennap.a.Gurikar D.p.Shivap.a.ad Luis Sabillón N.A.Nanje Gowda Kaliramesh Siliveru Ramaiah University of Applied Sciences BangaloreIndia Department of Grain Science and Industry Kansas State UniversityManhattanKSUSA Department of Family and Consumer Sciences New Mexico State UniversityLas CrusesNMUSA

Mycotoxins are secondary toxic metabolites synthesized by numerous filamentous fungi including members of the genus Fusarium,penicillium,Drechslera,Aspergillus,Claviceps,Monascum,Alternaria,Cep.a.osporium,Nigrospora,and *** them,Aspergillus and Fusarium species are major p.a.t pathogens recognized to induce infection and produce mycotoxins in food *** than 400 mycotoxins have been documented and among them,aflatoxin,fumonisins,trichothecenes,zearalenone,ochratoxin A,citrinin,ergot alkaloids,and patulin are the most prominent compounds linked to a variety of human and animal health *** Fusarium and Aspergillus belong to a saprophytic group,which can infect and contaminate many crops at pre and post-harvest *** can have a variety of negative effects on health in both humans and *** and their metabolites can cause severe acute poisoning,which can result in death,as well as long-term negative health effects,such as cancer and immune-suppressive disorders in living beings(animals and humans).Mycotoxin contamination of agricultural goods has gained global significance,due to its toxic effects on living beings,as well as its importance to international *** objective is to provide a consolidated information on the potential mycotixs in food grains and their significant impact on the health of the human beings.

关键词： Mycotoxins Aspergillus Fusarium penicillium Carcinogen Contamination Aflatoxins Fumonisins

LOCAL LIKELIHOOD METHOD IN THE pROBLEMS RELATED TO CHANGE pOINTS

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Chinese Annals of Mathematics,Series B 1990年第3期11卷 363-375页

作者： KRISHNAIAH p.R. 缪柏其赵林城 Center for Multivariate Analysis University of Pittsburgh Department of Mathematics University of Science and Technology of China

In this paper, the so-called local likelihood method is suggested for solving thechange point problems when the data are distributed as multivariate normal. Thedetection procedures proposed not only provide strongly eonsistent estimates for thenumber and locations of the change points, but also simplify significantly thecomputation.

关键词： LOCAL simplify likelihood multivariate estimates 七无切二 verify underlying arise