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| 1 | Accelerated Degradation Reliability Modeling and Test Data Statistical Analysis of Aerospace Electrical Connector显示文摘As few or no failures occur during accelerated life test,it is difficult to assess reliability for long-life products with traditional life tests.Reliability assessment using degradation data of product performance over time becomes a significant approach.Aerospace electrical connector is researched in this paper.Through the analysis of failure mechanism,the performance degradation law is obtained and the statistical model for degradation failure is set up;according to the research on statistical analysis methods for degradation data,accelerated life test theory and method for aerospace electrical connector based on performance degradation is proposed by improving time series analysis method,and the storage reliability is assessed for Y11X series of aerospace electrical connector with degradation data from accelerated degradation test.The result obtained is basically consistent with that obtained from accelerated life test based on failure data,and the two estimates of product's characteristic life only have a difference of 8.7%,but the test time shortens about a half.As a result,a systemic approach is proposed for reliability assessment of highly reliable and long-life aerospace product. | CHEN Wenhua LIU Juan GAO Liang PAN Jun ZHOU Shengjun | 2011 | Chinese Journal of Mechanical Engineering2011，24，6： | 22 |
| 2 | 声波激励的超小型纳机电系统磁电天线显示文摘当前的小型天线依赖于电磁波的谐振,因此天线的尺寸与电磁波波长相关。典型的天线尺寸大于波长的1/10,而进一步缩小天线尺寸在近十年来都是一个公开的挑战。介绍一种通过悬浮铁氧/压电薄膜异质结构的声波激励纳机械磁电天线。这种磁电天线通过其在声波谐振频率处的磁电效应接收和发射电磁波。磁电天线中的体声波激发铁磁薄膜的磁化振荡,产生电磁波的辐射;反之,天线感应电磁波的磁场,得到压电电压输出。这种磁电天线(尺寸仅为波长的千分之一)比现有小型天线的尺寸小1到2个数量级,但性能却没有降低,在便携式无线通信系统中具有很大的应用潜力。 | Tianxiang Nan Hwaider Lin Yuan Gao Alexei Matyushov Guoliang Yu Huaihao Chen Neville Sun Shengjun Wei Zhiguang Wang Menghui Li Xinjun Wang Amine Belkessam Rongdi Guo Brian Chen James Zhou Zhenyun Qian Yu Hui Matteo Rinaldi Michael E.McConney BrANDon M.Howe Zhongqiang Hu John G.Jones Gail J.Brown Nian Xiang Sun 张建强(翻译) 陈鼎鼎(审校) | 2017 | 通信对抗2017，36，4： | 8 |
| 3 | Pharmacological Activation of RXR-a Promotes Hematoma Absorption via a PPAR-y-dependent Pathway After Intracerebral Hemorrhage显示文摘Endogenously eliminating the hematoma is a favorable strategy in addressing intracerebral hemorrhage(ICH).This study sought to determine the role of retinoid X receptor-ot(RXR-a)in the context of hematoma absorption after ICH.Our results showed that pharmacologically activating RXR-a with bexarotene significantly accelerated hematoma clearance and alleviated neurological dysfunction after ICH.RXR-ot was expressed in microglia/macro-phages,neurons,and astrocytes.Mechanistically,bexarotene promoted the nuclear translocation of RXR-a and PPAR-y,as well as reducing neuroinflammation by modulating microglia/macrophage reprograming from the Ml into the M2 phenotype.Furthermore,all the beneficial effects of RXR-a in ICH were reversed by the PPAR-y inhibitor GW9662.In conclusion,the pharmacological activation of RXR-a confers robust neuroprotection against ICH by accelerating hematoma clearance and repolarizing microglia/macrophages towards the M2 phenotype through PPAR-y-related mechanisms.Our data support the notion that RXR-ot might be a promising therapeutic target for ICH. | Chaoran Xu Huaijun Chen Shengjun Zhou Chenjun Sun Xiaolong Xia Yucong Peng Jianfeng Zhuang Xiongjie Fu Hanhai Zeng Hang Zhou Yang Cao Qian Yu Yin Li Libin Hu Guoyang Zhou Feng Yan Gao Chen Jianru Li | 2021 | Neuroscience Bulletin2021，37，10： | 4 |
| 4 | Study on the influence of material thermal characteristics on dust explosion parameters of three long-chain monobasic alcohols 显示文摘 | Gao Wei Zhong Shengjun Mogi T | 2013 | Journal of Loss Prevention in the Process Industries2013，26，1： | 1 |
| 5 | Secondary alcohols oxidation with hydrogen peroxide catalyzed by[n-C16 H33 N (CH3)3]3 PW12 O40:Transform-and-retransform process between catalytic precursor and catalytic activity species显示文摘 | ZHANG Shengjun ZHAO Gongda GAO Shuang | | 0，，： | 1 |
| 6 | Preparation and optical properties of waterborne acrylic-based cool white coatings显示文摘Cool coatings(solar reflective coatings)possess a high total solar reflectance and a high thermal emittance,and they have potential applications in building surfaces,pavements,and oil tanks.By decreasing the accumulation of heat,these coatings can reduce the urban heat island effect to increase thermal comfort and to decrease energy consumption in hot zones.In this work,a cool white coating based on waterborne acrylic was prepared.The reflectance and thermal emittance were measured using an ultravioletvisible-near-infrared spectrophotometer and the steadystate calorimetric technique,respectively.The cool coating possessed a total solar reflectance of 0.887 and a thermal emittance of 0.85.The linear fitting results indicated that the thickness of the dry film is an important factor that affects the reflectance and that the physical limit of total solar reflectance in practical cool coatings is 0.91.A homemade device developed according to military specification MIL-E-46096C was used to measure insulation temperature differences,and an insulation temperature difference of29°C was obtained.The above results demonstrated that the cool coating can be applied to buildings. | Shengjun Cheng Hongjiang Liu Yanfeng Gao | 2014 | Chinese Science Bulletin2014，59，31： | 1 |
| 7 | Clinical practice guideline on liver transplantation for hepatocellular carcinoma in China(2021 edition)显示文摘Hepatocellular carcinoma(HCC)is the main cause of cancer-related deaths in adult men under the age of 60 years in China.^([1])Liver transplantation(LT)is generally recognized as one of the most effective therapeutic approaches for end-stage liver diseases.LT guidelines for HCC were firstly launched in 2014 and were updated in 2018.Recently,further updates are required to adapt to the new situation of LT in China and to continue advancing the recommendations.(Full version in Supplementary file,http://gffzz7970c142aa3c4dfahwk0bu0wpuoow6cvq.ffgz.tsg.suse.edu.cn/CM9/B362). | Jun Chen Tian Shen Jianhui Li Sunbin Ling Zhe Yang Guoying Wang Liying Sun Zhaoxu Yang Li Zhuang Jie Gao Wenyuan Guo Jie Li Shengjun Xu Qiang Wei Shusen Zheng Xiao Xu | 2022 | Chinese Medical Journal2022，135，24： | 1 |
| 8 | A new inter‑system double‑difference RTK model applicable to both overlapping and non‑overlapping signal frequencies显示文摘Aiming at the problem that the traditional inter-system double-difference model is not suitable for non-overlapping signal frequencies,we propose a new inter-system double-difference model with single difference ambiguity estimation,which can be applied for both overlapping and non-overlapping signal frequencies.The single difference ambiguities of all satellites and Differential Inter-System Biases(DISB)are first estimated,and the intra-system double difference ambiguities,which have integer characteristics,are then fixed.After the ambiguities are successfully fixed,high-precision coordinates and DISB can be obtained with a constructed transformation matrix.The model effectively avoids the DISB parameter filtering discontinuity caused by the reference satellite transformation and the low precision of the reference satellite single difference ambiguity calculated with the code.A zero-baseline using multiple types of receivers is selected to verify the stability of the estimated DISB.Three baselines with different lengths are selected to assess the positioning performance of the model.The ionospheric-fixed and ionospheric-float models are used for short and medium-long baselines,respectively.The results show that the Differential Inter-System Code Biases(DISCB)and Differential Inter-System Phase Biases(DISPB)have good stability regardless of the receivers type and the signal frequency used and can be calibrated to enhance the strength of the positioning model.The positioning results with three baselines of different lengths show that the proposed inter-system double-difference model can improve the positioning accuracy by 6–22%compared with the intra-system double-difference model which selects the reference satellite independently for each system.The Time to First Fix(TTFF)of the two medium-long baselines is reduced by 30%and 29%,respectively. | Wenhao Zhao Genyou Liu Ming Gao Bo Zhang Shengjun Hu Minghui Lyu | 2023 | Satellite Navigation2023，4，3： | 0 |
| 9 | Reaction Mechanism of H2-Assisted C3H6-SCR over Ag-CexZr Catalyst as Investigated by In situ FTIR显示文摘A series of silver-doped cerium zirconium oxide(Ag-CevZr)samples was synthesized successfully for selective catalytic reduction of nitric oxide(NO)with hydrogen and propene(H2/C3H6-SCR)under excess oxygen condition.The catalytic activity test proved that Ag-Ce0.4Zr exhibited the best C3H6-SCR activity.Hydrogen(H2)significantly enlianced NO conversion and widened the temperature window.Multi-technology characterizations were conducted to ascertain the properties of fabricated catalysts including X-ray diflraction(XRD),Fourier transform infrared spectrometry(FTIR),scanning electron microscopy(SEM)and H2 temperature programmed reduction(H2-TPR).In situ FTIR results demonstrated that various types of nitrates and chelating nitrite were generated on Ag-CexZr after introduction of NO.Besides,adding H2 could increase the concentration of bidentate nitrate and chelated bidentate nitrate dramatically,especially for Ce0.4Zr catalyst.Transient reaction between pre-adsorbing NO and C3H/C3H6+H2 illuminated that the most active intermediate was chelating nitrite,which was promoted significantly by H2 participation.Furthermore,adding H2 improved the formation of organo-nitro(R-N02),which was the key intennediate in C3H6-SCR.The reaction mechanism over Ag-CexZr catalysts was proposed at 200℃ as follows:nitric oxide(NO)+pr opene(C 3H6)+hy dr ogen(H2)+oxy gen(O2)→chelating nitrite (N O2-)+acry late-type species(CxHyOz)→organo-nitro(R-NO2)→isocyanate(-NCO)+cyanide(—CN)→nitrogen(N2). | DUAN Jun ZHAO Ling GAO Shengjun ZHANG Yu | 2020 | Chemical Research in Chinese Universities2020，36，5： | 0 |
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