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| 1 | TBM penetration rate prediction based on the long short-term memory neural network显示文摘Tunnel boring machines(TBMs)are widely used in tunnel engineering because of their safety and efficiency.The TBM penetration rate(PR)is crucial,as its real-time prediction can reflect the adaptation of a TBM under current geological conditions and assist the adjustment of operating parameters.In this study,deep learning technology is applied to TBM performance prediction,and a PR prediction model based on a long short-term memory(LSTM)neuron network is proposed.To verify the performance of the proposed model,the machine parameters,rock mass parameters,and geological survey data from the water conveyance tunnel of the Hangzhou Second Water Source project were collected to form a dataset.Furthermore,2313 excavation cycles were randomly composed of training datasets to train the LSTM-based model,and 257 excavation cycles were used as a testing dataset to test the performance.The root mean square error and the mean absolute error of the proposed model are 4.733 and 3.204,respectively.Compared with Recurrent neuron network(RNN)based model and traditional time-series prediction model autoregressive integrated moving average with explanation variables(ARIMAX),the overall performance on proposed model is better.Moreover,in the rapidly increasing period of the PR,the error of the LSTM-based model prediction curve is significantly smaller than those of the other two models.The prediction results indicate that the LSTM-based model proposed herein is relatively accurate,thereby providing guidance for the excavation process of TBMs and offering practical application value. | Boyang Gao RuiRui Wang Chunjin Lin Xu Guo Bin Liu Wengang Zhang | 2021 | Underground Space2021，6，6： | 4 |
| 2 | Dichotomous roles of neutrophils in modulating pathogenic and repair processes of inflammatory bowel diseases显示文摘Neutrophils are considered as complex innate immune cells and play a critical role in maintaining intestinal mucosal homeostasis.They exert robust pro-inflammatory effects and recruit other immune cells in the acute phase of pathogen infection and intestinal inflammation,but paradoxically,they also limit exogenousmicrobial invasion and facilitate mucosal restoration.Hyperactivation or dysfunction of neutrophils results in abnormal immune responses,leading to multiple autoimmune and inflammatory diseases including systemic lupus erythematosus,rheumatoid arthritis,and inflammatory bowel diseases(IBD).As a refractory intestinal inflammatory disease,the pathogenesis and progression of IBD are associated with complicated immune response processes in which neutrophils are profoundly involved.However,the consensus on potential roles of neutrophils in modulating pathogenic and repair processes of IBD remains not fully understood.Accumulated infiltrating neutrophils cross the epithelial barrier and contribute to microbial dysbiosis,aggravated intestinal architectural damage,compromised resolution of intestinal inflammation and increased risk of thrombosis during IBD.Paradoxically,activated neutrophils are also associated with effective elimination of invaded microbiota,promoted angiogenesis and tissue restoration of gutmucosa in IBD.Here,we discuss the beneficial and detrimental roles of neutrophils in the onset and resolution of intestinalmucosal inflammation,hoping to provide a precise overview of neutrophil functions in the pathogenesis of IBD. | Huimin Chen Xiaohan Wu Chunjin Xu Jian Lin Zhanju Liu | 2021 | Precision Clinical Medicine2021，4，4： | 3 |
| 3 | Clinical study on the related markers of blood coagulation in the patients with ANFH after SARS显示文摘The aim of this research was to investigate the blood coagulation function in the patients with avascular necrosis of the femoral head(ANFH)after severe acute respiratory syndrome(SARS).The expression of CD31,CD61,CD62p,CD63 and PAC-1 on platelet membrane was measured respectively by flowcytometry,and the plasma prothrombin time(PT),activated partial thromboplastin time(APTT),thrombin time(TT)and fibrinogen(Fbg)were mea-sured by blood clotting instrument in 26 patients with ANFH after SARS and in 17 healthy adults.The expression of CD31,CD61,CD 62p,CD63 and PAC-1 on platelet membrane in 26 patients was all lower than that in 17 healthy subjects(P<0.01).The levels of PT,APTT,TT and Fbg in 26 patients were all normal.There is no significant difference(P>0.05)in those markers between patients and 17 healthy adults.The blood may not be in hypercoagulable state in patients with ANFH after SARS. | WU Lianhua GAO Chunjin WANG Guozhong YANG Lin HOU Xiaomin GE Huan XIA Chengqing QI Man | 2007 | Frontiers of Medicine2007，1，4： | 2 |
| 4 | A new evaluation method for site selection of large underground water-sealed petroleum storage depots显示文摘Scientific site selection is the first step in constructing underground water-sealed petroleum storage depots, but no uniform standard and code for such activity has been established. Therefore, the main objective of this study is to propose an evaluation method for the site selection of an underground water-sealed petroleum storage depot. The first large underground water-sealed petroleum storage depot being built in China served as the background of this study. The following 12 indexes were used as evaluation factors based on comprehensive evaluation criteria and specifications for key project site selection: geographic structure development feature, topographic feature, lithostratic formation feature, crustal stress, strength of rock mass, joint development feature, hydrogeological conditions, long-term water sealing conditions, environmental/ecological vulnerability, regional stability, technical and economic conditions, and meteorological and hydrological conditions. The weight back analysis and power coefficient methods were also used to evaluate the site selected for the first underground water-sealed petroleum storage depot project. Petroleum site classification models based on the two aforementioned methods were established and used to verify the feasibility of the evaluation criteria and methods, and the evaluation results show the grade of the site selected for the underground water-sealed petroleum storage depot in Huangdao, China is good. The study results may be used as a reference for the site selection of future underground water-sealed petroleum storage depots. | XUE YiGuo LI ShuCai QIU DaoHong WANG ZheChao LI ZhiQiang TIAN Hao SU MaoXin YANG Wei Min LIN ChunJin ZHU JianYe | 2015 | Science China(Technological Sciences)2015，58，6： | 2 |
| 5 | On U-torsionless modules and U-neat modules显示文摘 | Wei Chunjin | 2000 | East-West J of Math2000，，12： | 1 |
| 6 | X16老年人平衡能力测试量表的信度和效度评估(摘译)显示文摘近几十年来,老龄化已成为当今社会的重要公共卫生问题之一。全世界几乎所有国家中60岁及以上的人口数都在逐步、迅速地增长。2012年,全球老年人口占总人口的11%以上。据联合国人口基金会估计,到2050年这一比例将达到约22%。2012年,我国有1.8亿老年人,截至2015年,65岁及以上老人占全国总人口的10.5%,预计到2050年该比例还会增长近三分之一。上海是我国人口最多也是平均期望寿命最高的城市,2014年老年人口比例达到28.8%。随着年龄的增长,老年人的生理、认知和行动能力均有不同程度下降,因此,有必要对老龄化进程中的特点进行研究。 | 姜玉(摘译) 夏庆华(审校) Jingjuan Ju Peng Zhou Lin Li Xiaolei Ye Hongmei Wu Bin Shen Jialei Zhang Xiaoding He Chunjin Niu | 2021 | 伤害医学(电子版)2021，10，1： | 1 |
| 7 | On U - torsionless modules and U - neat modules显示文摘 | Xin Lin Wei Chunjin | 2000 | East- West J of Math2000，12，1： | 1 |
| 8 | Global Existence of the Equilibrium Diffusion Model in Radiative Hydrodynamics显示文摘This paper is devoted to the analysis of the Cauchy problem for a system of PDEs arising in radiative hydrodynamics. This system, which comes from the so-called equilibrium diffusion regime, is a variant of the usual Euler equations, where the energy and pressure functionals are modified to take into account the effect of radiation and the energy balance containing a nonlinear diffusion term acting on the temperature. The problem is studied in the multi-dimensional framework. The authors identify the existence of a strictly convex entropy and a stability property of the system, and check that the Kawashima-Shizuta condition holds. Then, based on these structure properties, the wellposedness close to a constant state can be proved by using fine energy estimates. The asymptotic decay of the solutions are also investigated. | Chunjin LIN Thierry GOUDON | 2011 | Chinese Annals of Mathematics,Series B2011，32，4： | 0 |
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