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Conduction Properties and Scattering Mechanisms in F-doped Textured Transparent Conducting SnO_2 Films Deposited by APCVD

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Journal of Materials Science & Technology 1997年第1期13卷 50-56页

作者： Deheng ZHANG(Dept. of Physics, shandong university, jinan 2.0100, china)Honglei MA(Institute of Optoelectronic Materials and Devices, shandong university, jinan 2.0100, china) Dept. of Physics Shandong University Jinan 250100 China Institute of Optoelectronic Materials and Devices Shandong University Jinan 250100 China

Transparent conducting F-doped texture SnO2 films with resistivity as low as 5× 10-4 Ω ·cm,with carrier concentrations between 3.5 × 1020 and 7× 1020 cm-3 and Hall mobilities from 15.7 to 20.1 cm2/(V/s) have been prepared by atmosphere pressure chemical vapour deposition (APCVD). These polycrystalline films possess a variable preferred orientation, the polycrystallite sizes and orientations vary with substrate temperature. The substrate temperature and fluorine flow rate dependence of conductivity, Hall mobility and carrier conentration fOr the resultingfilms have been obtained. The temperature dependence of the mobiity and carrier concentrationhave been measured over a temperature range 16～400 K. A systematically theoretical analysis on scattering mechanisms for the highly conductive SnO2 films has been given. Both theoretical analysis and experimental results indicate that for these degenerate, polycrystalline SnO2 ：F films in the low temperature range (below 100 K), ionized impurity scattering is main scattering mechanism. However, when the temperature is higher than 100 K, the lattice vibration scattering becomes dominant. The grain boundary scattering makes a small contribution to limit the mobility of the films.

关键词： SnO cm Conduction Properties and Scattering Mechanisms in F-doped Textured Transparent Conducting SnO2 Films Deposited by APCVD

Infinite Interval Backward Stochastic Differential Equations in the Plane

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Acta Mathematicae Applicatae Sinica 2003年第3期19卷 485-490页

作者： Yan-ling GuSchool of mathematics and System Sciences, shandong university, jinan 2.0100, china School of mathematics and System Sciences Shandong University Jinan China

This paper studies the existence and uniqueness of solution of infinite interval backward stochastic differential equation (BSDE) in the plane driven by a Brownian sheet.

关键词： Two-parameter mixed type BSDE

The Effect of Anti-Human CD134 Monoclonal Antibody on Phytohemagglutinin-Induced mRNA Expression of Perforin in Peripheral Blood Mononuclear Cells

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Cellular & Molecular Immunology 2005年第6期2卷 467-471页

作者： Ming Li~1 Yuanchao Zhang~(1,2) ~1Department of Rheumatology and Immunology,shandong Provincial Hospital,shandong university,jinan 250021,china ~2Department of Rheumatology and Immunology,shandong Provincial Hospital,shandong university,jinan 250021,shandong,china. Department of Rheumatology and Immunology Shandong Provincial Hospital Shandong University Jinan 250021 China

CD134, a member of the tumor necrosis factor receptor superfamily, plays a crucial role in T cell survival. In this study, peripheral blood mononuclear cells （PBMCs） stimulated with phytohemagglutinin （PHA, 50 μg/ml） were treated by CD134 mAb （1μg/ml, 5 μg/ml, 10 μg/ml） for 6 h, 12 h, 24 h and 48 h. The level of perforin mRNA was measured by reverse transcription-polymerase chain reaction （RT-PCR） technique. Our data showed that the expression of perforin mRNA in PBMCs was down-regulated by CD134 mAb in a dose-dependent manner in range of 1 μg/ml to 5 μg/ml and dropped down to its minimum on 24 h （p 〈 0.05）. The level of perforin mRNA reached a plateau when the concentration of CD134 mAb exceeded 5 μg/ml. In conclusion, CD134 mAb can inhibit perforin expression, which may enhance the ability of T cells for survival. Cellular ＆ Molecular Immunology. 2005;2（6）： 467-471.

关键词： CD134 perforin phytohemagglutinin

Function S-rough sets and security-authentication of hiding law

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Science in china(Series F) 2008年第7期51卷 924-935页

作者： SHI KaiQuan1,2 & ZHAO JianLi3 1 School of mathematics and Computer Sciences, Longyan university, Longyan 364000, china 2 School of mathematics and System Sciences, shandong university, jinan 2.0100, china 3 School of mathematics Science, Liaocheng university, Liaocheng 252059, china School of mathematics and Computer Sciences Longyan University Longyan China School of mathematics and System Sciences Shandong University Jinan China School of mathematics Science Liaocheng University Liaocheng China

Function S-rbugh sets are defined by R-function equivalence class, which have dynamic characteristic. Function S-rough sets have dynamic characteristic, law characteristic and law-hiding characteristic. Function S-rough sets can generate f-hiding law and f-hiding law. By engrafting, crossing, and penetrating between the information security theory and function S-rough sets, the security hiding and the authentication of f-hiding law and f-hiding law are given respectively in this paper. The fusion and share between function S-rough sets and information security theory is a new research direction of the application of information law in information system.

关键词： function S-rough sets law-hiding elliptic curve the security-authentication of hiding law

Repetitious-Hot-Pressing Technique in Hot-Pressing Process

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Journal of Materials Science & Technology 2003年第5期19卷 486-488页

作者： Shixue SONG, Xing AI, Wei GAO and Jun ZHAO1)School of Mechanical Engineering, shandong university, jinan 250061, china2)School of Science, jinan university, jinan 250022, china School of Mechanical Engineering Shandong University Jinan 250061 China School of Science Jinan University Jinan 250022 China

A new pressing method was proposed for hot-pressing process. Experimental results indicated that the porosity in Al2O3/TiC/ Ni/Mo (hereafter called AI2O3/TiC composite) composite compacts decreases by 6% after adopting this new technique, compared to traditional hot-pressing technique under the same sintering temperature. The flexural strength and Vicker hardness increase from 883 MPa to 980 MPa and from 16 GPa to 21.1 GPa, respectively. A theoretical model was given to analyze the densification mechanism of the composite in the process of repetitious-hot-pressing.

关键词： Hot-pressing sintering Repetitious-hot-pressing sintering Composite

Antitumor Effect of Antisense Ornithine Decarboxylase Adenovirus on Human Lung Cancer Cells

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Acta Biochimica et Biophysica Sinica 2006年第6期38卷 410-416页

作者： Hui TIAN~(1*),Lin LI~1,Xian-Xi LIU~2,and Yan ZHANG~2 ~1 Department of Thoracic Surgery,shandong university Qi Lu Hospital,jinan 250012,china ~2 Experimental Center of Medical Molecular Biology,School of Medicine,shandong university,jinan 250012,china Department of Thoracic Surgery Shandong University Qi Lu HospitalJinan 250012 China Experimental Center of Medical Molecular Biology School of Medicine Shandong UniversityJinan 250012 China

Ornithine decarboxylase (ODC),the first enzyme of polyamine biosynthesis,was found toincrease in cancer cells,especially lung cancer *** chemotherapeutic agents aimed at decreasingODC gene expression showed inhibitory effects on cancer cells,ha this study,we examined the effects ofadenoviral transduced antisense ODC on lung cancer *** adenovirus carrying antisense ODC(rAd-ODC/Ex3as) was used to infect lung cancer cell line *** 3-(4,5-methylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay was used to analyze the effect on cell *** of ODC and concentrationof polyamines in cells were determined by Western blot analysis and high performance liquid *** deoxynucleotidyl transferase-mediated biotin-dUTP nick-end labeling was used to analyze *** expression of ODC in A-549 cells was reduced to 54%,and that of three polyamines wasalso decreased through the rAd-ODC/Ex3as ***,cell growth was substantially inhibitedand terminal deoxynucleotidyl transferase-mediated biotin-dUTP nick-end labeling showed that rAd-ODC/Ex3ascould lead to cell apoptosis,with apoptosis index of 46%.This study suggests that rAd-ODC/Ex3as has anantitumor effect on the human lung cancer cells.

关键词： polyamine putrescine biosynthesis antisense technology gene therapy A-549 lung cancer cell line

Image denoising and deblurring: non-convex regularization, inverse diffusion and shock filter

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Science china(Information Sciences) 2011年第6期54卷 1184-1198页

作者： FU ShuJun 1,2,3 , ZHANG CaiMing 2 & TAI XueCheng 3,4 1 School of mathematics, shandong university, jinan 2.0100, china 2 School of Computer Science and Technology, shandong university, jinan 250101, china 3 School of Physical and Mathematical Sciences, Nanyang Technological university, Singapore 639798, Singapore 4 Department of mathematics, university of Bergen, Bergen 5008, Norway School of mathematics Shandong University Jinan China School of Computer Science and Technology Shandong University Jinan China School of Physical and Mathematical Sciences Nanyang Technological University Singapore Singapore Department of mathematics University of Bergen Bergen Norway

A large number of applications in image processing and computer vision depend on image quality. In this paper, main concerns are image denoising and deblurring simultaneously in a restoration task by three types of methodologies: non-convex regularization, inverse diffusion and shock filter. We discuss their relations in the context of image deblurring: the inverse diffusion implied by the non-convex regularization, and the superior ability of deblurring edge of the shock filter to that of the inverse diffusion, both in 1D and 2D cases. Finally, we propose a region-based adaptive anisotropic diffusion with shock filter method, which shows advantages of deblurring edges, denoising and smoothing contours in experiments, compared with some related methods. Therein an idea of "divide and rule" is introduced.

关键词： image denoising image deblurring non-convex regularization inverse diffusion shock filter adaptive anisotropic diffusion

Correlation of zeros of automorphic L-functions

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Science china mathematics 2008年第7期51卷 1147-1166页

作者： LIU JianYa1 & YE YangBo1,2 1 School of mathematics,shandong university,jinan 2.0100, china 2Department of mathematics,The university of Iowa,Iowa City,IA 52242-1419,USA School of mathematics Shandong University Jinan China Department of mathematics The University of Iowa Iowa City USA

We compute the n-level correlation of normalized nontrivial zeros of a product of Lfunctions: L(s, π1) … L(s, π k ), where πj, j = 1, …, k, are automorphic cuspidal representations of GL mj (?A). Here the sizes of the groups GL mj (?A) are not necessarily the same. When these L(s, π j ) are distinct, we prove that their nontrivial zeros are uncorrelated, as predicted by random matrix theory and verified numerically. When L(s, π j ) are not necessarily distinct, our results will lead to a proof that the n-level correlation of normalized nontrivial zeros of the product L-function follows the superposition of Gaussian Unitary Ensemble (GUE) models of individual L-functions and products of lower rank GUEs. The results are unconditional when m 1, …, m k ? 4, but are under Hypothesis H in other cases.

关键词： automorphic L-function zero correlation Selberg’s orthogonality conjecture 11F70 11M26 11M41

Jensen's Inequality for Backward Stochastic Differential Equations

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Chinese Annals of mathematics,Series B 2006年第5期27卷 553-564页

作者： Long JIANG Department of mathematics, china university of Mining and Technology, Xuzhou 221008, Jiangsu, china School of Mathematical Sciences, Fudan university, Shanghai 200433, china School of mathematics and System Sciences, shandong university, jinan 2.0100, china. Department of mathematics China University of Mining and Technology Xuzhou 221008 Jiangsu China School of Mathematical Sciences Fudan University Shanghai 200433 China School of mathematics and System Sciences Shandong University Jinan 250100 China

Under the Lipschitz assumption and square integrable assumption on g, the author proves that Jensen＇s inequality holds for backward stochastic differential equations with generator g if and only if g is independent of y, g（t, 0）≡ 0 and g is super homogeneous with respect to z. This result generalizes the known results on Jensen＇s inequality for gexpectation in [4, 7-9].

关键词： Backward stochastic differential equation g-Expectation Jensen's inequality for g-expectation Jensen's inequality for BSDEs