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Journal of Systems Engineering and Electronics 2023年第4期34卷 992-1006页

作者： NAN yi yi Guoxing hu Lei WANG Changhong TU Zhenbiao Department of Control Science and Engineering Harbin Institute of TechnologyHarbin 150001China Beijing Electro-mechanical Engineering Institute Beijing 100074China

The interception probability of a single missile is the basis for combat plan design and weapon performance evaluation,while its influencing factors are complex and mutually *** calculation methods have very limited analysis of the influence mechanism of influencing factors,and none of them has analyzed the influence of the guidance *** paper considers the influencing factors of both the interceptor and the target more *** parameters include speed,guidance law,guidance error,fuze error,and fragment killing ability,while target performance includes speed,maneuverability,and *** this paper,an interception model is established,Monte Carlo simulation is carried out,and the influence mechanism of each factor is analyzed based on the model and simulation ***,this paper proposes a classification-regression neural network to quickly estimate the interception probability based on the value of influencing *** proposed method reduces the interference of invalid interception data to valid data,so its prediction accuracy is significantly better than that of pure regression neural networks.

关键词： interception probability simulation modeling analysis of influencing factors probability estimation neural networks

Clinical outcomes and complications between FLACS and conventional phacoemulsification cataract surgery: a PRISMA-compliant Meta-analysis of 25 randomized controlled trials

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International Journal of Ophthalmology(English edition) 2021年第7期14卷 1081-1091页

作者： Li Chen Chen hu Xiao lin Hao-Yu Li yi Du yi-hua Yao Jun Chen Department of Ophthalmology the Affiliated Nanping First Hospital of Fujian Medical UniversityNanping 353000Fujian ProvinceChina Department of Ophthalmology the First Affiliated Hospital of Guangxi Medical UniversityNanning 530000Guangxi Zhuang Autonomous RegionChina Department of Ophthalmology the First Affiliated Hospital of Fujian Medical UniversityFuzhou 350000Fujian ProvinceChina

AIM: To update and investigate the clinical outcomes and complications between femtosecond laser-assisted cataract surgery(FLACS) and conventional phacoemulsification cataract surgery(CPCS). METHODS: A Meta-analysis was performed using databases, including Pubmed, Embase, and the Cochrane library. At least one of the clinical outcomes and/or complications data in each included randomized controlled trials(RCT) was reported. The quality of the RCT was assessed with the Cochrane risk assessments ***: Overall, 25 RCTs including 3781 eyes were included. No statistically significant difference detected between FLACS and CPCS in terms of corrected distant visual acuity(CDVA), uncorrected distant visual acuity(UDVA), and central corneal thickness(CCT) at the longterm follow up, although FLACS showed better CDVA at 1 wk postoperatively, and less increase in CCT at 1 d and 1 wk. FLACS had better postoperative endothelial cell count(ECC) at 1 and 4-6 wk, while there was no significantly difference between FLACS and CPCS at 1 d, 3 and 6 mo [weighted mean difference(WMD): 51.54, 95% confidence interval(CI):-5.46 to 108.54, P=0.08;WMD: 48.52, 95%CI:-17.54 to 114.58, P=0.15;WMD: 12.17, 95%CI:-48.61 to 72.94, P=0.69, respectively]. Postoperative endothelial cell loss(ECL) of the FLACS was significantly lower than that of the CPCS at 1, 4-6 wk, and 3 mo(P=0.02, 0.008, 0.03, respectively). However, there was no significant difference between two groups at 6 mo(WMD:-30.36, 95%CI:-78.84 to 18.12, P=0.22). No significant difference was discovered with respect to the macular edema [odds ratio(OR): 0.93, 95%CI: 0.42 to 2.05, P=0.85], capsular complication excluding posterior capsular tears(OR: 0.79, 95%CI: 0.42 to 1.50, P=0.47) and intraocular pressure change(OR: 0.82, 95%CI: 0.39 to 1.72, P=0.60). However, posterior capsular tears were more common in CPCS group(OR: 0.12, 95%CI: 0.01 to 0.98, P=0.05). The effective phacoemulsification times were significantly lower in the FLACS

关键词： femtosecond laser-assisted cataract surgery conventional phacoemulsification cataract surgery Meta-analysis posterior capsular tear

Optimal Combinations and Variable Departure Intervals for Micro Bus System

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Tsinghua Science and Technology 2017年第3期22卷 282-292页

作者： Jiaoyang Li Jianming hu yi Zhang Department of Automation Tsinghua UniversityBeijing 100084China

It is becoming increasingly difficult for Chinese citizens to access traditional public transport because of overcrowded community structures. Therefore, novel ideas are required to improve the transport system. In this respect, this study considers the design of a public transport scheduling model for a micro system. The model aims to minimize passenger waiting time and maximize number of passengers one bus carries, by simultaneously optimizing departure intervals and use of traditional and rapid buses. The model is superior to traditional models, as it analyzes the phenomena of vehicle overtaking, vehicle capacity limit, and passenger determination uncertainty. In addition, the model is a sophisticated nonlinear multi-objective optimization problem and contains more than one type of decision variable, therefore two composite algorithms, HPSO and GAPSO, are proposed, which are improvements of the Genetic Algorithm （GA） and Particle Swarm Optimization （PSO）. These two algorithms are compared to the classical GA with respect to stability and effect, and the results show them to be strong in both respects. In addition, the simultaneous optimization method has evident advantages compared to single-method optimizations.

关键词： bus scheduling optimization model rapid bus Particle Swarm Optimization (PSO) Genetic Algorithm(GA)

Efficacy and safety of sacubitril/valsartan after six months in patients with heart failure with reduced ejection fraction and asymptomatic hypotension

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Journal of Geriatric Cardiology 2023年第12期20卷 855-866页

作者： An-hu WU Zong-Wei lin Zhuo-Hao YANG hui ZHANG Jia-yi hu yi WANG Rui TANG Xin-Yu ZHANG Xiao-Ping JI hui-Xia LU National Key Laboratory for Innovation and Transformation of Luobing Theory The Key Laboratory of Cardiovascular Remodeling and Function ResearchChinese Ministry of EducationChinese National Health Commission and Chinese Academy of Medical SciencesDepartment of CardiologyQilu Hospital of Shandong UniversityJinanChina

BACKGROUND It is not clear whether sacubitril/valsartan is beneficial for patients with heart failure(HF)with reduced ejec-tion fraction(HFrEF)and low systolic blood pressure(SBP).This study aimed to investigate the efficacy and tolerability of sacu-bitril/valsartan in HFrEF patients with SBPling in patients with HFrEF who presented asymptomatic hypotension.

关键词： patients hypotension dosage

Granular collapse in fluids:Dynamics and flow regime identification

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Particuology 2024年第9期92卷 30-41页

作者： hu Tang Bisong lin Dengming Wang Department of Mechanics and Engineering Science School of Civil Engineering and MechanicsKey Laboratory of Mechanics on Disaster and Environment in Western China of Ministry of EducationLanzhou UniversityLanzhou730000China

The collapse of granular material in fluids is a prevalent phenomenon in both natural and industrial processes,displaying a notable sensitivity to initial configuration of the *** study is specifically oriented towards falling process of collapsing material under various fluid conditions,employing the computational fluid dynamics-discrete element method(CFD-DEM)to primarily investigate the dynamics and scaling laws of deposit morphology of collapsed *** a comprehensive analysis of particle sedimentation in fluids,we introduce a refined inertial characteristic time for granular collapse within the inertial ***,we propose modifications to conventional fluid-particle density ratio and Reynolds number,aiming to enhance the accuracy of depicting collapse dynamics and identifying flow regimes across diverse column heights and fluid ***,we construct a phase diagram of flow regimes using modified dimensionless numbers,emphasizing the role of column height in transition between viscous and inertial *** parameters demonstrate enhanced relevance in governing the collapse of immersed granular columns,thereby contributing to a more nuanced understanding of fluid-particle interations in dense granular flows under different regimes.

关键词： Immersed granular material Collapse Dynamic Flow regime Computational fluid dynamics-discrete element method

Comparison between Swift and pre-Swift gamma-ray bursts

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Research in Astronomy and Astrophysics 2009年第6期9卷 682-686页

作者： yi-Qing lin Department of Mathematics and Physics Xiamen University of Technology Xiamen 361024 China

The gamma-ray burst （GRB） mission Swift has made a much deeper GRB survey than any previous one. I present a systematical comparison between GRB samples detected with pre-Swift missions and those from Swift, in order to investigate whether they show any statistical difference. Our Swift GRB sample includes the bursts detected by Swift/BAT before 2007 September. With both flux-limited surveys and redshift-known GRB samples, I show that, apparently, the observed distributions of the redshifts, T90, and log N- log P are significantly different, but not for the spectral hardness ratio, fluence and Eiso. The redshifts of the Swift GRB sample are statistically larger than those of pre-Swift GRBs, with a mean of 1.95±0.17 compared to ～ 1 for pre-Swift GRBs. The cosmological effect on the observables is thus considerable. This effect on the spectral hardness ratio, fluence and Eiso is cancelled out, and the distributions of these quantities indeed do not show significant differences between the Swift and pre-Sw/ft GRBs. Taking this effect into account, I found that the corrected distributions of T90 for long GRBs and log N - log P observed with Swift/BAT are also consistent with those observed with CGRO/BATSE. These results indicate that the Swift and pre-Swift GRBs are from the same population.

关键词： gamma-rays bursts

Microstructure and properties of microarc oxidation coating formed on aluminum alloy with compound additives nano-TiO_2 and nano-ZnO

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Rare Metals 2018年第11期37卷 976-982页

作者： Ting-yi lin Xiao-Yan Zhang Xin huang Xiang-Peng Gong Jun-Jie Zhang Xie-Jun hu College of Materials and Metallurgy Guizhou University

In this work, microarc oxidation(MAO) technology was used to form oxide ceramic coating on the surface of aluminum alloy. The combined additives nano-TiOand nano-ZnO were added into the silicate electrolyte, and the effect of the compound nano-additive on microstructure and properties of MAO coating was investigated. The results show that compared with those of the nano-additive-free coating formed on aluminum alloy, the thickness, hardness, abrasion resistance and corrosion resistance of the nano-additive-containing coating are obviously improved. The surface of coating with nanoadditive becomes smooth, dense, and there are less porosities and microcracks. Moreover, the content of crystal phase a-AlOand y-AlOincreases visibly on the nano-additive-containing MAO coatings, and new phases AlTi and ZnTiare detected in the coatings, which are mainly contributed to the excellent corrosion resistance and abrasion resistance of the film. When the contents of nano-TiOand nano-ZnO are, respectively, 4 and 2 g-L, the film has better comprehensive performance, the thickness and hardness of the film could reach 52 μm and HV 692,respectively.

关键词： Microarc oxidation Nano-TiO_2 Nano-ZnO Aluminum alloy Property

Highly efficient detection of insulinotropic action of glucagon via GLP-1 receptor in mice pancreatic beta-cell with a novel perfusion microchip

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Chinese Chemical Letters 2016年第7期27卷 1027-1031页

作者： Li-Dan hu Yu-lin Zhang Hong Wang Xing-Yue Peng yi Wang School of Life Sciences. Xiamen University. Xiamen 361005. China Laboratory of Cardiometabolic Molecular Medicine Institute of Molecular Medicine Peking University Beijing 100871 China College of Life Sciences and Technology Huazhong University of Science and Technology Wuhan 430074 China

Glucagon exhibits insulinotropic ability by activating cAMP through glucagon or glucagon-like peptide-1（GLP-1） *** investigate the mechanism of endogenous and exogenous glucagon on insulin release,we studied the receptor selectivity on pancreatic islet beta-cells by switching the glucose concentration from 20 mmol/L to 0 mmol/L To measure the exact temporal relationship between glucagon and insulin release,we developed a quick,small volume,multi-channel polydimethylsiloxane（PDMS） *** 0 mmol/L glucose,we observed an insulinotropic effect in both INS-1 cells and ***,we observed a 63 ± 6.27 s delay of endogenous glucagon-induced insulin *** treatment with glucagon and GLP-1 receptor antagonists,we found that endogenous glucagon utilized the glucagon receptor,whereas exogenous glucagon primarily utilized the GLP-1 receptor to promote insulin *** microchip can also be used to describe the ＂glucagonocentric＂ vision of diabetes *** together,the insulinotropic mechanism of different receptors should be taken into account in clinical treatments.

关键词： Glucagon Insulin Glucagon receptor GLP-1 receptor Microchip

Therapeutic endoscopic retrograde cholangiopancreatography in a patient with situs inversus viscerum

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World Journal of Gastroenterology 2015年第18期21卷 5744-5748页

作者： yi hu Hao Zeng Xiao-lin Pan Nong-hua Lv Zhi-Jian Liu Yang hu Department of Gastroenterology The First Affiliated Hospital of Nanchang University Nanchang 330006 Jianxi Province China

Situs inversus viscerum(SIV)is a rare congenitalcondition characterized by complete transposition of all *** anatomical pathology makes endoscopic retrograde cholangiopancreatography(ERCP)technically *** report a new case of a 70-year-old Chinese male with total SIV who had obstructive *** cholangiopancreatography demonstrated a number of stones in the gallbladder and common bile duct(CBD).Therapeutic ERCP was performed to relieve biliary obstruction and remove the CBD *** procedure started with the patient in a supine position and the endoscopist at the left side of the *** the papilla was maintained,the patient was repositioned to a prone position and standard endoscopic sphincterotomy and endoscopic papillary balloon dilatation procedures were *** was performed successfully and relevant complications did not occur in this *** also present a review of the literature published between 1985 and 2014in the Pub Med and EMBASE *** were eight published cases during this period,with one each from America,Finland,India,Italy,South Korea and Pakistan,and two from *** case is the first reported in China.

关键词： Situs inversus Endoscopic retrograde cholan-giopancreatography Common bile duct Endoscopic sphincterotomy Endoscopic papillary balloon dilatation

Generalized Bargmann Representation of Spin Coherent State

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Communications in Theoretical Physics 2004年第4期41卷 537-540页

作者： FANHong-yi CHENJun-hu DepartmentofPhysics ShanghaiJiaoTongUniversityShanghai200030China DepartmentofMaterialScienceandEngineering UniversityofScienceandTechnologyofChinaHefei230026China

Based on the conclusion that the generalized Bargmann representation of a two-mode Fock state is a two-variable Hermite polynomial function /Hong-yi Fan and Jun-hua Chen,***.A303(2002)311] we derive the generalized Ba... 详细信息

关键词： spin coherent state generalized Bargmann representation Hermite polynomials