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| 1 | 3-D Fracture Network Modelling in Hydropower Engineering Based on Optimal Monte Carlo Simulation显示文摘Effectively and accurately modelling the spatial relation of fracture surfaces is crucial in the design and construction of large hydropower dams having a complex underlying geology. However, fracture surfaces are randomly formed and vary greatly with respect to their spatial distribution, which makes the construction of accurate 3-D models challenging. In this study, we use an optimal Monte Carlo simulation and dynamic conditioning to construct a fracture network model. We found the optimal Monte Carlo simulation to effectively reduce the error associated with the Monte Carlo method and use dynamic conditioning to ensure the consistency of the model with the actual distribution of fractures on the excavation faces and outcrops. We applied this novel approach to a hydropower station on the Jinshajiang River, China. The simulation results matched the real sampled values well, confirming that the model is capable of effectively and accurately simulating the spatial relations in a fracture network. | Pan Yue Denghua Zhong Fugen Yan Han Wu Yichi Zhang | 2017 | Transactions of Tianjin University2017，23，4： | 2 |
| 2 | Synthesis and characterization of acrylic latex:Effects of fluorine and silicon components on properties of the latex copolymers显示文摘 | DONGXIAO HAN LIQUAN ZHU YICHI CHEN | 2013 | Journal of Fluorine Chemistry2013，156，12： | 1 |
| 3 | Cardiopulmonary prognosis of prophylactic endotracheal intubation in patients with upper gastrointestinal bleeding undergoing endoscopy显示文摘BACKGROUND:It is controversial whether prophylactic endotracheal intubation(PEI)protects the airway before endoscopy in critically ill patients with upper gastrointestinal bleeding(UGIB).The study aimed to explore the predictive value of PEI for cardiopulmonary outcomes and identify high-risk patients with UGIB undergoing endoscopy.METHODS:Patients undergoing endoscopy for UGIB were retrospectively enrolled in the eICU Collaborative Research Database(eICU-CRD).The composite cardiopulmonary outcomes included aspiration,pneumonia,pulmonary edema,shock or hypotension,cardiac arrest,myocardial infarction,and arrhythmia.The incidence of cardiopulmonary outcomes within 48 h after endoscopy was compared between the PEI and non-PEI groups.Logistic regression analyses and propensity score matching analyses were performed to estimate effects of PEI on cardiopulmonary outcomes.Moreover,restricted cubic spline plots were used to assess for any threshold effects in the association between baseline variables and risk of cardiopulmonary outcomes(yes/no)in the PEI group.RESULTS:A total of 946 patients were divided into the PEI group(108/946,11.4%)and the non-PEI group(838/946,88.6%).After propensity score matching,the PEI group(n=50)had a higher incidence of cardiopulmonary outcomes(58.0%vs.30.3%,P=0.001).PEI was a risk factor for cardiopulmonary outcomes after adjusting for confounders(odds ratio[OR]3.176,95%confidence interval[95%CI]1.567-6.438,P=0.001).The subgroup analysis indicated the similar results.A shock index>0.77 was a predictor for cardiopulmonary outcomes in patients undergoing PEI(P=0.015).The probability of cardiopulmonary outcomes in the PEI group depended on the Charlson Comorbidity Index(OR 1.465,95%CI 1.079-1.989,P=0.014)and shock index>0.77(compared with shock index≤0.77[OR 2.981,95%CI 1.186-7.492,P=0.020,AUC=0.764]).CONCLUSION:PEI may be associated with cardiopulmonary outcomes in elderly and critically ill patients with UGIB undergoing endoscopy.Furthermore,a shock index greater than 0.77 could be used as a predictor of a worse prognosis in patients undergoing PEI. | Yufang Lin Fei’er Song Weiyue Zeng Yichi Han Xiujuan Chen Xuanhui Chen Yu Ouyang Xueke Zhou Guoxiang Zou Ruirui Wang Huixian Li Xin Li | 2023 | World Journal of Emergency Medicine2023，14，5： | 0 |
| 4 | Living donor liver transplantation combined with splenectomy in a child with Niemann-Pick disease type B:single-centre experience of perioperative anticoagulation regimen显示文摘Niemann-Pick disease(NPD)is a rare and life-threatening disease caused by the deficiency of acid sphingomyelinase activity which is characterized by intracellular accumulation of sphingomyelin within multiple organs(1).At present,few non-surgical treatment options are available for NPD apart from enzyme replacement therapy and allogeneic hematopoietic stem cell transplantation.However,neither surgical nor alternative therapies can modify the progression of neurological disorders,which makes the prognosis of NPD except type B bleak(2).NPD type B(NPD-B),known as one visceral form of NPD,is usually clinically manifested as hepatosplenomegaly but without neurological symptoms.Notably,pulmonary parenchymal involvement secondary to the accumulation of sphingomyelin in alveoli is also a feature of NPD-B(3).Scattered reports(4)indicated that liver transplantation(LT)have shown some preliminary results for NPD-B.Owing to the effect of diseased spleen on operation field and pancytopenia associated with hypersplenism,splenectomy is always performed in conjunction with LT.However. | Han Ding Jian Wang Yichi Zhang Shuai Zhao Bing Han Hao Cai Jinyang Gu | 2022 | Hepatobiliary Surgery and Nutrition2022，11，3： | 0 |
| 5 | Simulating the obstacle avoidance behavior day and night based on the visible-infrared MoS_(2)/Ge heterojunction field-effect phototransistor显示文摘The contradiction between the high number of visually handicapped people and the scarcity of guide dogs has stimulated the demand for electronic guide dogs(EGDs).Here,we demonstrate an EGD by leveraging piezoresistors on a MoS_(2)/Ge heterostructure for simultaneous pressure-sensing and optical-sensing functions.The device has excellent gating capability and exhibits large positive and negative photoresponses under visible(532 nm,182 A/W)and infrared(1550 nm,37 A/W)illumination.These characteristics allow the device to efficiently classify different obstacles at all times of day using pressure and light signals.The device reaches nearly 100%accuracy after 48 training sessions when used to classify frequent scenes.The device adopts passive and active detection modes during the day and night,respectively,which improves the battery life of the EGD.This work provides a significant reference for the future design of EGDs,which may help a greater number of visually impaired people by reducing the cost of such devices. | Zhao Han Bo Wang Jie You Qiancui Zhang Yichi Zhang Tian Miao Ningning Zhang Dongdong Lin Zuimin Jiang Renxu Jia Jincheng Zhang Hui Guo Huiyong Hu Liming Wang | 2023 | Nano Research2023，16，8： | 0 |
| 6 | Simulating tactile and visual multisensory behaviour in humans based on an MoS_(2) field effect transistor显示文摘A visual and tactile multisensory integrated system is essential for human walking due to the demand for real-time interactions between perception and action.Here,a piezoresistor and MoS_(2)field effect transistor are combined to construct an artificial integration nervous system to simulate perception and synaptic plasticity.The key characteristics of synaptic plasticity are successfully demonstrated by individual pressure signals,individual optical signals,the synergy of optical and pressure signals,which are based on the electron trapping–detrapping mechanism at the MoS_(2)/SiO_(2)interface.We demonstrate that perception under synergy is stronger than perception under optical or pressure signal alone,which is similar to a biological system.Moreover,various distinguishable motion scenarios(combination of the following conditions:external lighting environment of day or night,flat or rough road,movement state of walking or running)are simulated and verified by adjusting the amplitude and frequency of the optical and pressure signals. | Jie You Liming Wang Yichi Zhang Dongdong Lin Bo Wang Zhao Han Ningning Zhang Tian Miao Maliang Liu Zuimin Jiang Hui Guo Yimeng Zhang Jincheng Zhang Huiyong Hu | 2023 | Nano Research2023，16，5： | 0 |
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