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Improved Ag-Si interface performance for Si solar cells using a novel Te-based glass and recrystallization process of Ag

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Rare Metals 2021年第1期40卷 84-89页

作者： Xin-Xin Pi Xiu-Hua Cao Ji-Shi Chen Le Zhang zhen-xiao fu Li-Xi Wang Qi-Tu Zhang College of Materials Science and Engineering Nanjing Tech UniversityNanjing 210009China Technology Center Guangdong Fenghua Advanced Technology Company LimitedZhaoqing 526000China

In order to prove that the Te-based glass frit could be applied to Ag pastes to fabricate Ag electrode and elucidate the reactions among Ag,the frit,and the Si wafer,the Te-based glass and Ag pastes with different contents of glass frit(0 wt%,1 wt%,3 wt%,5 wt%,and 7 wt%)were *** microstructures of Ag electrodes and the phase analysis of interface between Ag electrodes and the Si wafer were investigated using scanning electron microscopy(SEM)coupled with energy-dispersive X-ray spectroscopy(EDX)and X-ray diffraction(XRD).When the content of glass frit is 3 wt%,the Ag electrode has good adhesion with Si ***’s more,Ag crystallites and metallic Te could be found on the Si *** results suggest that the TeO_(2) in the glass frit could react with SiNx anti-reflecting coating(ARC)and Si to serve as a medium for forming Ag crystallites.

关键词： Solar cells Ag electrode Silver paste Tellurite glass Ag crystallites

Reproducibility of RTVue retinal nerve fiber layer thickness and optic nerve head measurements in normal and glaucoma eyes

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Chinese Medical Journal 2010年第14期123卷 1898-1903页

作者： LI Ji-peng WANG xiao-zhen fu Jing LI Shu-ning WANG Ning-li Tongren Eye Center Beijing Tongren Hospital Capital Medical University Ophthalmology and Visual Science Key Laboratory China Beijing 100730 China

Background RTVue spectral-domain optical coherence tomography （OCT） is a new, ultra high-speed and high-resolution instrument, potentially to measure the presence of glaucoma or its progression accurately. The objective of this study was to evaluate its reproducibility of retinal nerve fiber layer （RNFL） thickness and optic nerve head （ONH） measurements in normal and glaucoma eyes. Methods This study was an observational clinical study. One eye was selected randomly from each of 89 normal individuals and 63 glaucoma patients in a range of severity. RNFL thickness and ONH were measured 3 times on the same day to determine intrasession variability. The same instrument was used by the same operator for all scans. Intrasession within-subject standard deviation （Sw）, precision （1.96xSw）, coefficient of variation （CVw, 100xSw/overall mean）, and intraclass coefficient （ICC） were calculated to evaluate reproducibility. Results RTVue OCT demonstrated double hump patterns in the RNFL profiles. High reproducibility was observed in all ONH parameters. For normal eyes, the value of ICC ranged between 0.98 and 1.00. For eyes with different extent of glaucoma, it ranged between 0.94 and 1.00. High reproducibility was also observed in RNFL thickness measurements. The values of ICC for averaged RNFL thickness ranged between 0,95 and 1.00 in all cases. For regional parameters, it ranged from 0,94 to 0.98 for normal eyes, 0.94 to 1.00 for mild glaucoma eyes, 0.87 to 1.00 for moderate glaucoma eyes, and 0.77 to 0.97 for severe glaucoma eyes. The nasal regions of severe glaucoma appeared to be most variable, as nasal lower region and inferior nasal region had the ICC values of 0.77 and 0.87. Conclusion Reproducibility of RTVue RNFL and ONH measurements was excellent in normal and glaucoma groups.

关键词： diagnostic techniques ophthalmological, instrumentation optical coherence tomography standards reproducibility

A proximal entry tear located in the proximal trunk of the left subclavian artery is confirmed by balloon inflation blocking and sealed with an occluder

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Chinese Medical Journal 2013年第3期126卷 595-597页

作者： WANG Li-xin GU0 Da-qiao SHI zhen-yu TANG xiao fu Wei-guo Department of Vascular Surgery Zhongshan Hospital Fudan University Shanghai 200032 China

Aortic dissection （AD） is a catastrophic disease involving the aorta. Most intimal tears are located in the ascending aorta or the first portion of the descending aorta.1 It is a rare case that the proximal tear originates from the left subclavian artery （LSA）. Virtual endoscopy （VE） technology could provide us a specific perspective to see from intraluminal to the outside and was especially helpful to look for and indentify complicated intimal tears.^2 Vascular occluder is a useful device to treat vessel diseases alone or combined with other appratus.

关键词： aortic dissection entry tear virtual endoscopy balloon left subclavian artery occluder

Anticancer Effect of Ginseng Leaves Crude Polysaccharides on Human Hepatoma Cell SMMC-7721

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Anticancer Effect of Ginseng Leaves Crude Polysaccharides on...

Generalized Goldwasser and Micali’s Type Cryptosystem

第三届中国药理学会补益药药理专业委员会学术研讨会

作者： xiao-zhen fu Dan Shi Chao Qu Guang-Ying Zhong Wei Zou Jing Liu College of Life Sciences Liaoning Normal University Liaoning Key Laboratories of Biotechnology and Molecular Drug Research and Development The First Affiliated Hospital Dalian Medical University

Background:Polysaccharides extracted from the medicinal herbs are known to possess antitumor *** there is a mountain of number of evidences implicated on the beneficial effects of the ginseng leaves ginsenoside with diverse associated mechanisms,reports on the anticancer by the ginseng leaves crude polysaccharides(GLCP) are not *** were carried out to unravel the anticancer effects of ***:Cells were treated with GLCP(0.5-2mg/ml) for *** method was used to detect the cell viability,while western blot and flow cytometry were used to detect the apoptotic *** autophagy were detected by western blot and acridine orange ***:Compared with the normal human liver cell(Chang liver),GLCP(1.5-2mg/ml) significantly reduced cell viability,increased the expression of apoptosis-related proteins,and promoted apoptosis and autophagy in SMMC-7721 ***,caveolin-1 gene knockdown induced by transfecting shRNA could inhibit the anticancer effect of GLCP. Conclusions:These data suggest that GLCP promotes autophagy and apoptosis in human hepatoma cell *** speculated that its mechanism may associate with caveolin-1 which is an essential structural molecule of *** the inhibition effect of GLCP on hepatic carcinoma was not very strong,the GLCP as tumor suppressor in health care are more attractive playing.

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Journal of Computer Science & Technology 2022年第2期37卷 459-467页

作者： Ying Guo zhen-fu Cao xiao-Lei Dong Department of Computer Science and Engineering Shanghai Jiao Tong UniversityShanghai 200240China Shanghai Key Laboratory of Trustworthy Computing East China Normal UniversityShanghai 200062China Institute of Intelligent Science and Technology Tongji UniversityShanghai 200092China

In 1982,Goldwasser and Micali proposed the first probabilistic public key cryptosystem with indistinguishability under chosen plaintext attack security based on the quadratic residuosity *** expansion of Goldwasser's scheme is quite large,thereby the scheme is inefficient.A lot of schemes have been proposed to reduce the ciphertext *** schemes use the same encryption algorithm as Goldwasser's scheme with different parameters and keys,which we call them Goldwasser and Micali's type(GM-type)***-type schemes can be divided into two categories according to different parameters and decryption *** this paper,we propose the first generalized GM-type scheme combining these two *** GM-type schemes are special cases of our generalized GM-type *** ciphertext expansion of our scheme is smaller than that of any other GM-type schemes.

关键词： Goldwasser and Micali's type(GM-type)scheme k-th power residuosity discrete logarithm problem

Energetic processes regulating the strength of MJO circulation over the Maritime Continent during two types of El Ni?o

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Atmospheric and Oceanic Science Letters 2018年第2期11卷 112-119页

作者： HSU Pang-Chi fu zhen xiao Ting Key Laboratory of Meteorological Disaster of Ministry of Education Nanjing University of Information Science & Technology Nanjing China Joint International Research Laboratory of Climate and Environment Change Nanjing University of information Science &Technology Nanjing China Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters Nanjing University of information Science & Technology Nanjing China Guangzhou Meteorological Observatory GuangzhouChina

The zonal shift of SST warming patterns associated with the eastern Pacific （EP） and central Pacific （CP） El Ni（n）o leads to a significant contrast in MJO strength over the Maritime *** MJO circulation tends to be stronger over the Maritime Continent during the mature phase （autumnwinter） of CP El Ni（n）o than of EP El Ni（n）*** on a new MJO kinetic energy （KE） budget equation,in which the effects of mean flow and high-frequency disturbances on the MJO are separated,we found that the low-level MJO gains more KE from the background mean flow during CP El Ni（n）o events,although at the same time the enhanced MJO transfers more KE to high-frequency *** the three-dimensional circulation anomalies,the low-level convergence and cyclonic anomalies associated with upward anomalies of the Walker circulation over the Maritime Continent play leading roles in inducing the enhanced barotropic energy conversion from mean flow to MJO during CP El Ni（n）o events relative to EP El Ni（n）o *** more vigorous MJO with strengthened vertical motion and heating anomalies at the upper troposphere can maintain its amplitude through the baroclinic energy conversion from the MJO available potential energy to *** the low-tomid tropospheric barotropic energy conversion from mean flow to MJO and upper-level baroclinic energy conversion contribute positively to the enhanced MJO over the Maritime Continent during CP El Ni（n）o years compared to during EP El Ni（n）o years.

关键词： MJO kinetic energy budget central Pacific and eastern Pacific El Ni(n)oscale interaction

Cleaning IF molten steel with dispersed in-situ heterophases induced by the composite sphere explosive reaction in RH ladles

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International Journal of Minerals,Metallurgy and Materials 2011年第2期18卷 144-149页

作者： fu-ping Tang zhen Li xiao-feng Wang Ben-wen Chen Peng Fei Anshan Iron ＆ steel Group Company Anshan 114014 China

A novel fine inclusion removal technology was put forward with dispersed in-situ heterophases induced by the composite sphere explosive reaction. A composite sphere with this function was designed and prepared using a laboratory scale batch-type balling disc （at 12 r/min）, and the composite sphere was fed at the end of the RH refining process. The results indicate that inclusions in the IF molten steel can be removed effectively by feeding composite spheres in RH ladle. Compared with conventional inclusion removal technology, using this novel technology, the amount of oxide inclusions can be decreased to a lower level and the inclusion size becomes finer, the total oxygen content in the as-cast slab can approach 5×10？6, and the cost per ton of steel produced can be reduced by 5-12 Yuan RMB.

关键词： IF steel refining bubbles slags filtration inclusions

Hot Deformation Behavior and Flow Stress Prediction of Ultra Purified 17% Cr Ferritic Stainless Steel Stabilized with Nb and Ti

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Journal of Iron and Steel Research International 2015年第9期22卷 827-836页

作者： Fei GAO fu-xiao YU Hai-tao LIU zhen-yu LIU School of Materials & Metallurgy Northeastern Unversity State Key Laboratory of Rolling and Automation Northeastern University

The hot deformation behavior of ultra purified 17% Cr ferritic stainless steel stabilized with Nb and Ti was investigated using axisymmetric hot compression tests on a thermomechanical *** deformation was carried out at the temperatures ranging from 700 to 1 100℃ and strain rates from 1to *** microstructure was investigated using electron backscattering *** effects of temperature and strain rate on deformation behavior were represented by Zener-Hollomon parameter in an exponent type *** effect of strain was incorporated in the constitutive equation by establishing polynomial relationship between the material constants and strain.A sixth order polynomial was suitable to represent the effect of *** modified constitutive equation considering the effect of strain was developed and could predict the flow stress throughout the deformation conditions except at800℃in 1s-1 and at 700℃in 5and *** the reliability of the modified constitutive equation was possibly ascribed to the increase in average Taylor factor at 800℃in 1s-1 and the increase in temperature at 700℃in 5and10s-1 during hot *** optimum window for improving product quality of the ferritic stainless steels was identified as hot rolling at a low finisher entry temperature of 700℃,which can be achieved in practical production.

关键词： 17%Cr ferritic stainless steel hot deformation flow stress constitutive equation strain compensation

Investigation of stress corrosion cracking behavior and mechanism analysis of a 1900 MPa-grade ultra-high-strength stainless steel

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Journal of Iron and Steel Research International 2022年第9期29卷 1474-1484页

作者： Shuai Tian zhen-bao Liu Ren-li fu xiao-hui Wang Jian-xiong Liang School of Materials Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing 210016JiangsuChina Instiute for Special Steel Institute Central Iron and Steel Research InstituteBeijing 100081China

The stress corrosion cracking(SCC)behavior of a 1900 MPa-grade ultra-high-strength stainless steel in 3.5 wt.% NaCl solution was investigated by X-ray diffractometer,scanning electron microscopy,electron back-scattered diffraction,X-ray photoelectron spectroscopy,and potentiodynamic polarization *** results showed that USS122G stel has good SCC resistance,and the critical stress intensiy factor(K_(iscc))of USS122G steel was about 68.906 MPa m^(1/2) and Kiscc/K_(ic)=0.76(K_(ic) is plane strain fracture toughness).The existence of film-like austenite along the lath martensite boundary and the protective effect of thecc passivation flm were the main factors for its high *** them,the main components of the passivation film on the surface of USS122G steel were Cr_(2)O_(3),Cr(OH)_(3),FeOOH,and Ni(OH)_(2).The fracture morphology of SCC zone was intergranular and *** the slow and fast scanning rate polarization curve test results,it can be concluded that SCC mechanism of USS122G steel in 3.5 wt.%NaCl solution at the open-circuit potential was a mixed mechanism involving hydrogen embritlement and anodic dissolution.

关键词： Ultra-high-strength stainless steel.Critical stress intensity factor-Film-like austenite Hydrogen embrittlement Anodic dissolution