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| 1 | Differences between CMIP6 and CMIP5 Models in Simulating Climate over China and the East Asian Monsoon显示文摘We compare the ability of coupled global climate models from the phases 5 and 6 of the Coupled Model Intercomparison Project(CMIP5 and CMIP6,respectively)in simulating the temperature and precipitation climatology and interannual variability over China for the period 1961–2005 and the climatological East Asian monsoon for the period 1979–2005.All 92 models are able to simulate the geographical distribution of the above variables reasonably well.Compared with earlier CMIP5 models,current CMIP6 models have nationally weaker cold biases,a similar nationwide overestimation of precipitation and a weaker underestimation of the southeast–northwest precipitation gradient,a comparable overestimation of the spatial variability of the interannual variability,and a similar underestimation of the strength of winter monsoon over northern Asia.Pairwise comparison indicates that models have improved from CMIP5 to CMIP6 for climatological temperature and precipitation and winter monsoon but display little improvement for the interannual temperature and precipitation variability and summer monsoon.The ability of models relates to their horizontal resolutions in certain aspects.Both the multi-model arithmetic mean and median display similar skills and outperform most of the individual models in all considered aspects. | Dabang JIANG Dan HU Zhiping TIAN and Xianmei LANG | 2020 | Advances in Atmospheric Sciences2020，37，10： | 28 |
| 2 | Evaluation model for service life of dam based on time-varying risk probability显示文摘For many dam projects in China, the 50-year designed life time is coming to an end. It is urgent to study the theory and method to evaluate the dam service life. In this paper, firstly, the probability theory of fuzzy event and time-varying effect theory are used to analyze the time-variety of various risk factors in the process of dam operations. A method is proposed to quantify the above time-variety and a model to describe the fuzzy time-varying risk probability for the dam structure is also built. Secondly, the information entropy theory is used to analyze the uncertain degree relationship between the characteristic value of membership function and fuzzy risk probability, and a mathematical method is presented to calculate the time-varying risk probability accordingly. Thirdly, the relation mode between time-varying risk probability and service life is discussed. Based on this relation mode and the acceptable risk probability of dams in China, a method is put forward to evaluate and forecast the dam service life. Finally, the proposed theory and method are used to analyze one concrete dam. The dynamic variability and mutation feature of the dam risk probability are analyzed. The remaining service life of this dam is forecasted. The obtained results can provide technology support for the project management department to make treatment measures of engineering and reasonably arrange reinforce cost. The principles in this paper have wide applicability and can be used in risk analysis for slope instability and other fields. | SU HuaiZhi WEN ZhiPing HU Jiang WU ZhongRu | 2009 | Science China(Technological Sciences)2009，52，7： | 23 |
| 3 | Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China. | Kaiwen Li Tianxin Lin 无 Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang | 2015 | Asian Journal of Urology2015，2，2： | 21 |
| 4 | Morphology of platelet Golgi apparatus and their significance after acute cerebral infarction显示文摘Blood samples were harvested from the antecubital vein of 20 fasting patients with acute cerebral infarction at 1, 7 and 15 days after onset to prepare blood platelet suspension. Fasting antecubital vein blood was collected from an additional 20 normal adults as controls. Under transmission elec-tron microscope, platelet Golgi tubules and vesicles became significantly thickened, enlarged, and irregular after acute cerebral infarction. Alpha granules in platelets significantly reduced in number, especially 1 day after cerebral infarction. Under immunoelectron microscopy, a few alpha granules aggregated around Golgi tubules and vesicles after infarction. These results suggested that platelet Golgi apparatus displayed significant morphological changes, which were possibly associated with enhanced synthetic and secretory functions of activated platelets after acute cerebral infarction. This study used Golgi apparatus blocking agent Brefeldin A to block Golgi apparatus in an aim to study the effects of Golgi apparatus on CD40L expression on the surface of activated platelets. Flow cytometry revealed that CD40L expression on activated platelet surfaces decreased significantly when Golgi apparatus was blocked, which indicated that Golgi apparatus participated in the syn-thesis and transport of CD40L to the platelet surface. | Wei Lu Dong Xu Ranran Tu Zhiping Hu | 2013 | Neural Regeneration Research2013，8，23： | 13 |
| 5 | Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool显示文摘Chang’E-4 landed in the South Pole-Aitken(SPA)basin,providing a unique chance to probe the composition of the lunar interior.Its landing site is located on ejecta strips in Von Karm´an crater that´possibly originate from the neighboring Finsen crater.A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations.In situ spectra of the regolith have peak band positions at 1 and 2μm,similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper,which confirms that the regolith’s composition of the landing area is mostly similar to that of Finsen ejecta.The rock spectrum shows similar band peak positions,but stronger absorptions,suggesting relatively fresh exposure.The rock may consist of 38.1±5.4%low-Ca pyroxene,13.9±5.1%olivine and 48.0±3.1%plagioclase,referred to as olivine-norite.The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle,but representative of the lunar lower crust.Alternatively,the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials.This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool,indicated by the fine to medium-sized texture(<3 mm)of the rock and the SPA-impact melting model[Icarus 2012;220:730–43]. | Honglei Lin Zhiping He Wei Yang Yangting Lin Rui Xu Chi Zhang Meng-Hua Zhu Rui Chang Jinhai Zhang Chunlai Li Hongyu Lin Yang Liu Sheng Gou Yong Wei Sen Hu Changbin Xue Jianfeng Yang Jie Zhong Xiaohui Fu Weixing Wan Yongliao Zou | 2020 | National Science Review2020，7，5： | 9 |
| 6 | Precise localization of small pulmonary nodules using Pre-VATS with Xper-CT in combination with real-time fluoroscopy-guided coil:report of 15 patients显示文摘Purpose: This study aimed to evaluate the value of precise localization of nodules using pre-video-assisted thoracic surgery(VATS) Xper–CT in combination with real-time fluoroscopy-guided coil in the resection of pulmonary nodules using VATS. Materials and Methods: Precise localization of nodules using Xper-CT in combination with real-time fluoroscopy-guided coil and wedge resection using VATS were conducted on 15 patients with 17 small pulmonary nodules(diameter 0.5–1.5 cm) from April 2015 to January 2016. The value of localization was evaluated in terms of procedure time, type of coils, associated complications of localization, and VATS success rate. Results: The success rate of coil localization was found to be 100% in the primary stage(as shown by the CT scan), and the average procedure time was 30–45 min(35.6 ± 3.05 min). No deaths or major complications occurred. Minor complications included five incidents of pneumothorax(the morbidity was 29.4%, 5/17; no patient required chest tube drainage). The dislocation of coil was found in one patient. The results of pathological examination of 17 small pulmonary nodules revealed 11 primary lung cancers, 1 mesenchymal tumor, 3 nonspecific chronic inflammations, 1 hamartoma, and 1 tuberculosis. Two patients with primary lung cancer underwent lobectomy with mediastinal lymph node dissection. Conclusion: The preoperative precise localization of small pulmonary nodules using Xper-CT-guided coil is an effective and safe technique. It helps in the resection of nodules using VATS. It increases the rate of lung wedge resection with few complications and allows for proper diagnosis with a low thoracotomy conversion rate. | Jiemin Cheng Changyu Li Liangwen Wang Jiting Liang Zhiping Yan Jiani Hu Huibing Shi | 2018 | Journal of Interventional Medicine2018，1，2： | 8 |
| 7 | An Active Defense Solution for ARP Spoofing in OpenFlow Network显示文摘As an emerging network technology,Software-defined network(SDN), has been rapidly developing for recent years due to its advantage in network management and updating. There are still a lot of open problems while applying this novel technology in reality,especially for meeting security demands. The Address resolution protocol(ARP) spoofing, a representative network attack in traditional networks is investigated.We implement the ARP spoofing in SDN network firstly and find that the threat of ARP attack still exists and has big impact on the network. We propose a novel mechanism as defense solution for ARP spoofing oriented to OpenFlow platform. Theoretical analyzation is given, and the mechanism is implemented as a module of POX controller. Experiment results and performance evaluations show that our solution can reduce the security threat of ARP spoofing remarkably on OpenFlow platform and related SDN platforms. | XIA Jing CAI Zhiping HU Gang XU Ming | 2019 | Chinese Journal of Electronics2019，28，1： | 6 |
| 8 | Danhong injection A modulator for Golgi structural stability after cerebral ischemiareperfusion injury显示文摘The cerebral ischemia-reperfusion model was established using the suture occlusion method,and rats were intraperitoneally given 8 mL/kg Danhong injection once a day prior to mode establishment.Rat brain tissues were harvested at 6,24,48,72 hours after reperfusion Immunohistochemical staining showed that transforming growth factor-β1 expression increased while Golgi matrix protein GM130 expression decreased after cerebral ischemia-reperfusion Danhong injection was shown to significantly up-regulate the expression of transforming growth factor-β1 and GM130,and expression levels peaked at 7 days after reperfusion.At 7 days after cerebral ischemia-reperfusion,Golgi morphology was damaged in untreated rats,while Golg morphology breakage was not observed after intervention with Danhong injection.These experimental findings indicate that Danhong injection can up-regulate the expression of transforming growth factor-β1 and GM130,and maintain Golgi stability,thus playing a neuroprotective role in rats after cerebral ischemia-reperfusion. | Yan Wang Zhiping Hu Wei Lu | 2013 | Neural Regeneration Research2013，8，25： | 6 |
| 9 | Does clopidogrel with aspirin after acute minor stroke or transient ischemic attack increase the risk of cerebral hemorrhage?显示文摘Wang et al1 recently showed that in patients with transient ischemic attack (TIA) or minor stroke that can be treated within 24 hours after the onset of symptoms,the combination of clopidogrel and aspirin was superior to aspirin alone for reducing the risk of stroke in the first 90 days,without increasing the risk of hemorrhage.We report a patient treated with this combination but suffered recurrent stroke and hemorrhage. | Zheng Haiping Chen Chunli Hu Zhiping Yang Li | 2014 | Chinese Medical Journal2014，，18： | 5 |
| 10 | Advances in metal halide perovskite lasers: synthetic strategies, morphology control, and lasing emission显示文摘.In the past decade,lead halide perovskites have emerged as potential optoelectronic materials in the fields of light-emitting diode,solar cell,photodetector,and laser,due to their low-cost synthesis method,tunable bandgap,high quantum yield,large absorption,gain coefficient,and low trap-state densities.In this review,we present a comprehensive discussion of lead halide perovskite applications,with an emphasis on recent advances in synthetic strategies,morphology control,and lasing performance.In particular,the synthetic strategies of solution and vapor progress and the morphology control of perovskite nanocrystals are reviewed.Furthermore,we systematically discuss the latest development of perovskite laser with various fundamental performances,which are highly dependent on the dimension and size of nanocrystals.Finally,considering current challenges and perspectives on the development of lead halide perovskite nanocrystals,we provide an outlook on achieving high-quality lead perovskite lasers and expanding their practical applications. | Zhiping Hu Zhengzheng Liu Zijun Zhan Tongchao Shi Juan Du Xiaosheng Tang Yuxin Leng | 2021 | Advanced Photonics2021，3，3： | 5 |
| 11 | Retraction Note to:SARS-CoV-2 infects T lymphocytes through its spike protein-mediated membrane fusion显示文摘The authors have retracted this article1.After the publication of this article,it came to the authors attention that in order to support the conclusions of the study,the authors should have used primary T cells instead of T-cell lines.In addition,there are concerns that the flow cytometry methodology applied here was flawed.These points resulted in the conclusions being considered invalid. | Xinling Wang Wei Xu Gaowei Hu Shuai Xia Zhiping Sun Zezhong Liu Youhua Xie Rong Zhang Shibo Jiang Lu Lu | 2020 | Cellular & Molecular Immunology2020，17，8： | 5 |
| 12 | Key Elements Controlling Oil Accumulation within the Tight Sandstones显示文摘Tight oil sandstone reservoirs with low porosity and permeability, which are an unconventional petroleum resource, have been discovered in the Jurassic intervals of the central Junggar Basin, the northwestern China. To reveal the accumulation mechanism, a relatively comprehensive research was conducted, including oil-source correlation, porosity evolution, and hydrocarbon charging history. The results show that crude oil of these tight sandstone reservoirs were mainly from Permian source rocks with some contribution from Jurassic source rocks. The reservoirs were buried at shallow depth(<3 100 m) and exposed to weak diagenesis, and thus had high porosity(18.5%) when the Permian-sourced oil from Permian source rock was charging, indicating high GOI values(>5%). In contrast, the sandstone reservoir had already become tight and did not provide available space to accumulate oil due to severe compaction and cementation when hydrocarbon from Jurassic source rock filled, evidenced by low GOI values(<5%). Therefore, reservoir porosity controls the oil accumulation within tight sandstone. Whether tight sandstone reservoirs accumulate oil depends on the reservoir quality when hydrocarbons charge. Before the exploration of tight oil sandstone reservoirs, it should be required to investigate the relationship between oil charging history and porosity evolution to reduce the exploration risk and figure out the available targets. | Haiyan Hu Zhiping Zeng Jianzhang Liu | 2015 | Journal of Earth Science2015，26，3： | 4 |
| 13 | Transverse mode instability mitigation in a high-power confined-doped fiber amplifier with good beam quality through seed laser control显示文摘In this work,a confined-doped fiber with the core/inner-cladding diameter of 40/250μm and a relative doping ratio of 0.75 is fabricated through a modified chemical vapor deposition method combined with the chelate gas deposition technique,and subsequently applied in a tandem-pumped fiber amplifier for high-power operation and transverse mode instability(TMI)mitigation.Notably,the impacts of the seed laser power and mode purity are preliminarily investigated through comparative experiments.It is found that the TMI threshold could be significantly affected by the seed laser mode purity.The possible mechanism behind this phenomenon is proposed and revealed through comprehensive comparative experiments and theoretical analysis.Finally,a maximum output power of 7.49 kW is obtained with the beam quality factor of approximately 1.83,which is the highest output power ever reported in a forward tandem-pumped confined-doped fiber amplifier.This work could provide a good reference and practical solution to improve the TMI threshold and realize high-power high-brightness fiber lasers. | Hanshuo Wu Haobo Li Yi An Ruixian Li Xiao Chen Hu Xiao Liangjin Huang Huan Yang Zhiping Yan Jinyong Leng Zhiyong Pan Pu Zhou | 2022 | High Power Laser Science and Engineering2022，10，6： | 3 |
| 14 | Changes in secretory pathway Ca^(2+)-ATPase 2 following focal cerebral ischemia/reperfusion injury显示文摘This study aimed to investigate changes in secretory pathway Ca2+-ATPase 2 expression following cerebral ischemia/reperfusion injury, and to define the role of Ca2+-ATPases in oxidative stress. A rat model of cerebral ischemia/reperfusion injury was established using the unilateral middle cerebral artery occlusion method. Immunohistochemistry and reverse transcription-PCR assay results showed that compared with the control group, the expression of secretory pathway Ca2+-ATPase 2 protein and mRNA in the cerebral cortex and hippocampus of male rats did not significantly change during the ischemic period. However, secretory pathway Ca2+-ATPase 2 protein and mRNA expression reduced gradually at 1, 3, and 24 hours during the reperfusion period. Our experimental findings indicate that levels of secretory pathway Ca2+-ATPase 2 protein and mRNA expression in brain tissue change in response to cerebral ischemia/reperfusion injury. | Tonglin Lu Zhiping Hu Liuwang Zeng Zheng Jiang | 2013 | Neural Regeneration Research2013，8，1： | 2 |
| 15 | NSC-640358 acts as RXRa ligand to promote TNFa-mediated apoptosis of cancer cell显示文摘 | Fan Chen Jiebo Chen Jiacheng Lin Anton V. Cheltsov Lin Xu Ya Chen Zhiping Zeng Liqun Chen Mingfeng Huang Mengjie Hu Xiaohong Ye YuqiZhou Guanghui Wang Ying su Long Zhang Fangfang Zhou Xiao-kun Zhang HU Zhou | 2015 | Protein & Cell2015，6，9： | 2 |
| 16 | Luminescence enhancement of CaMoO_(4):Eu^(3+) phosphor by charge compensation using microwave sintering method显示文摘CaMoO_(4):Eu^(3+)and CaMoO_(4):Eu^(3+),A+(A=Li,Na,K)phosphors for light-emitting diode(LED)applications have been prepared by microwave sintering method(MSM),and their structure and luminescence properties are investigated.The influences of microwave reaction time and concentration of different kinds of charge compensation A+and Eu^(3+)on luminescence have also been discussed.The samples emit a red luminescence at 615 nm attributed to the^(5)D0→^(7)F2 transition of Eu^(3+)under 464 nm excitation.It is observed that adding charge compensation A+in the sample synthesis increases luminescence intensity.The optimized sample made with 32 mol%Li+and 32 mol%Eu^(3+)has an enhancement factor of 4 in photoluminescence compared to the sample made without charge compensation.The CIE(Commission Internationale de l'Eclairage)coordinates of Ca0.36MoO_(4):0.32Eu^(3+),0.32Li+are x=0.661 and y=0.339,which indicate that the obtained phosphor can be a promising red color candidate for white LED fabrications. | Zhiping ZHOU Yingsen YU Xiaotang LIU Weihao YE Guangqi HU Bingfu LEI Yun YAN | 2015 | Journal of Advanced Ceramics2015，4，4： | 2 |
| 17 | Intercellular adhesion molecule-5 protects PAJU cells during in vitro ischemia following cerebral infarction显示文摘BACKGROUND: Intercellular adhesion molecule-5 (ICAM-5) relieves the damage of beta-amyloid protein to PAJU cells. However, little is known about how ICAM-5 works as a neurotrophic factor, or whether ICAM-5 lessens neuronal damage under ischemic conditions following cerebral infarction. OBJECTIVE: To investigate the effects of ICAM-5 on PAJU cells growth in serum-free medium under ischemic conditions following cerebral infarction. DESIGN, TIME AND SETTING: The cytological in vitro study was performed at the Central Laboratory, Second Xiangya Hospital, Central South University, China, in June 2009. MATERIALS: Human ICAM-5 gene transfected into PAJU-TLN cells was supplied by the Life Science College, Helsinki University, Finland. Empty vector transfected PAJU-NEO cells were established by the Gene Center, Second Xiangya Hospital, Central South University, China. METHODS: PAJU-TLN cells transfected with human ICAM-5 or empty vector were incubated in serum-free medium. MAIN OUTCOME MEASURES: Phase contrast microscopy was used to observe changes in PAJU cell morphology. 3-(4, 5-dimethylthiazolzyl)-2, 5-diphenyltetrazolium bromide was used to determine cell viability. Hoechst 33258 was used to stain cell nuclei. Flow cytometry was utilized to measure the apoptosis rate of both PAJU-TLN and PAJU-NEO cells. RESULTS: Both PAJU-TLN and PAJU-NEO cells were injured by cultivating in serum-free medium, but the survival rate of PAJU-TLN cells was significantly higher. CONCLUSION: ICAM-5 protects PAJU-TLN cells from serum deprivation-induced apoptosis, induces the outgrowth of PAJU cells, and diminishes their morphologic impairment. | Weijun Zhou Heping Yang Xiang Wang Yi Peng Dapeng WU Xiaojie Zhang Zhiping Hu | 2010 | Neural Regeneration Research2010，5，3： | 2 |
| 18 | Alleviating the crosstalk effect via a fine-moulded light-blocking matrix for colour-converted micro-LED display with a 122% NTSC gamut显示文摘One of the major challenges when fabricating high gamut colour-converted micro-light-emitting diodes(LEDs)displays is severe crosstalk effect among adjacent pixels because of the wide view-angle feature of micro-LED chips.In this study,potential factors that contribute to the crosstalk effect were systematically simulated.We observed that precisely filling the space between each micro-LED chip with a light blocking matrix(LBM)can be a promising solution to alleviate this risk.After careful investigations,a press-assisted moulding technique was demonstrated to be an effective approach of fabricating the LBM.Nevertheless,experimental observations further revealed that residual black LBM on the surface of micro-LEDs severely reduces the brightness,thereby compromising the display performance.This problem was successfully addressed by employing a plasma etching technique to efficiently extract the trapped light.Eventually,a top-emitting blue micro-LED-based backlight fine-moulded with a black LBM was developed and combined with red and green quantum dot colour-conversion layers for full-colour display.The colour gamut of our manufactured display prototype can cover as high as 122%that of the National Television Standards Committee. | Yongming Yin Zhiping Hu Muhammad Umair Ali Miao Duan Yongwei Wu Ming Liu Wenxiang Peng Jun Hou Dongze Li Xin Zhang Hong Meng | 2022 | Light(Advanced Manufacturing)2022，3，3： | 2 |
| 19 | Analytical method for the mechanical response of buried pipeline under the action of strike-slip faulting显示文摘Buried pipelines are commonly damaged when laid across strike-slip faults,always leading to some level of destruction with fault movement.The moment of the neutral axis of a pipe section was obtained by integration,and the equations for the bending moment and the bending strain on a pipeline’s section were presented here,based on a trilinear stress–strain model.The calculation method for the lateral soil pressure and pipeline’s bending strain near the fault-crossing point was improved.Lateral soil pressure was regarded as being related to lateral pipeline movement and,for accurate calculation,this part of the pipeline was divided into finite element segments.An iterative process for solving for pipe bending strain was derived,and the algorithm and program for calculating bending strain and the potential damage position of the pipeline’s sections was compiled based on Matlab software.Compared with finite element method(FEM)results and the current standard method,in the situation of a pipeline being in tension under the action of a strike-slip fault(intersection angle<90),the result of the proposed method is in good agreement with FEM results.This shows that the proposed analytical method possessed a good reference value for the strain response analysis of tensile steel pipelines under strike-slip faulting. | Zhiping Hu Xiang Ren Qiyao Wang Rui Wang Rui Pan | 2022 | Underground Space2022，7，2： | 2 |
| 20 | Mode selection and high-quality upconversion lasing from perovskite CsPb2Br5 microplates显示文摘In recent years,halide perovskite nanostructures have had great advances and have opened up a bright future for micro/nanolasers.However,upconversion lasing by two-photon excitation with mode selection and high quality factor in one device is still rarely reported.Herein,two lasing modes are demonstrated in the all-inorganic perovskite CsPb2Br5 microplates with subwavelength thickness and uniform square shape.The net optical gain is quickly established in less than 1 ps and persists more than 30 ps,revealed by ultrafast transient absorption spectroscopy.The temperature-dependent low-threshold amplified spontaneous emission confirms the net gain for stimulated emission with a high characteristic temperature of 403 K,far surpassing the all-inorganic CsPbBr3 semiconductor gain media.Remarkably,upconversion lasing based on two kinds of microcavity effects,Fabry–Pérot and whispering-gallery modes,from the microplates at room temperature is successfully achieved with a low threshold operating in multi-or single-mode,respectively.Surprisingly,the quality factor(~3551)is among the best values obtained from perovskite micro/nanoplate upconversion lasers without an external cavity.Moreover,the highly stable chromaticity with color drift only less than 0.1 nm also outbalances the all-inorganic CsPbBr3 ones.These superior performances of CsPb2Br5 microplate lasing with a facile solution synthesis procedure will offer a feasible structure to fabricate specific functionalities for high-performance frequency upconversion micro/nanoscale photonic integrated devices. | ZHENGZHENG LIU CHUNWEI WANG ZHIPING HU JUAN DU JIE YANG ZEYU ZHANG TONGCHAO SHI WEIMIN LIU XIAOSHENG TANG AND YUXIN LENG | 2020 | Photonics Research2020，8，9： | 2 |
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