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Journal of Systems Engineering and Electronics 2023年第3期34卷 783-797页

作者： CHEN hua SHEN chao huang Jiahui CAO Yuhan College of Science Hohai UniversityNanjing 210098China College of Mechanical and Electrical Engineering Hohai UniversityChangzhou 213022China Hohai-Lille College Hohai UniversityNanjing 211100China

This paper provides an improved model-free adaptive control(IMFAC)strategy for solving the surface vessel trajectory tracking issue with time delay and restricted ***,the original nonlinear time-delay system is transformed into a structure consisting of an unknown residual term and a parameter term with control inputs using a local compact form dynamic linearization(local-CFDL).To take advantage of the resulting structure,use a discrete-time extended state observer(DESO)to estimate the unknown residual ***,according to the study,the inclusion of a time delay has no effect on the linearization structure,and an improved control approach is provided,in which DESO is used to adjust for ***,a DESO-based event-triggered model-free adaptive control(ET-DESO-MFAC)is established by designing event-triggered conditions to assure Lyapunov *** when the system’s indicator fulfills the provided event-triggered condition will the control input signal be updated;otherwise,the control input will stay the same as it is at the last trigger moment.A coordinate compensation approach is developed to reduce the steady-state inaccuracy of trajectory ***,simulation experiments are used to assess the effectiveness of the proposed technique for trajectory tracking.

关键词： surface vessels event-triggered condition(ETC) discrete-time extended state observer(DESO) model-free adaptive control(MFAC) coordinate compensation

静脉注射硝普钠治疗精神分裂症有效性的Meta分析

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中国现代医学杂志 2021年第20期31卷 64-70页

作者：飞新星郑晓娇刘可智梁雪梅黄朝华西南医科大学附属医院精神科四川泸州646000

目的系统性评价静脉注射硝普钠(SNP)治疗精神分裂症(SZ)的有效性。方法通过PubMed、Web of Science、EMbase、Cochrane Library等英文数据,以及中国生物医学文献数据库、维普、万方和中国知网等中文数据库,检索有关静脉注射硝普钠治疗... 详细信息

目的系统性评价静脉注射硝普钠(SNP)治疗精神分裂症(SZ)的有效性。方法通过PubMed、Web of Science、EMbase、Cochrane Library等英文数据,以及中国生物医学文献数据库、维普、万方和中国知网等中文数据库,检索有关静脉注射硝普钠治疗精神分裂症的随机对照试验,所有数据库检索时限均于2020年11月7日截止。筛选文献、提取数据后,采用Review Manager 5.3软件进行Meta分析。结果最终纳入4个随机对照试验,共134例患者,结果显示,SNP组与对照组PANSS一般精神病理量表评分[MD=0.05(95%CI:-2.63,2.73),P>0.05]、PANSS阳性量表评分[MD=-0.76(95%CI:-1.74,0.23),P>0.05]、PANSS阴性量表评分[MD=-1.77(95%CI:-5.28,1.74),P>0.05]比较均无差异。敏感性分析后,SNP组与对照组PANSS阴性量表评分比较无差异[MD=-0.19(95%CI:-1.62,1.25),P>0.05]。SNP组与对照组BPRS-18量表评分比较有差异[MD=-5.91(95%CI:-11.42,-0.41),P<0.05],但异质性较高(I2=54%)。结论SZ患者对SNP耐受性较好,但与安慰剂比较,笔者无法得出SNP能够改善SZ相关精神症状的结论。

关键词：精神分裂症硝普钠 PANSS量表 Meta分析

Cerebral fat embolism following autologous fat injection in facial reconstruction:A case report

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World Journal of Clinical Cases 2025年第2期13卷 50-58页

作者： Xiu-Ying Chen Fa Shen Chang Cheng Yu-Han Wang Wen-chao Cheng De-Zhi Yuan Wen huang Department of Neurology Chongqing Emergency Medical CenterChongqing University Central HospitalChongqing 400000China Department of Neurology Xinqiao HospitalThe Army Medical University(Third Military Medical University)Chongqing 400000China

BACKGROUND Autologous fat injection in facial reconstruction is a common cosmetic *** cerebral fat embolism(CFE)as a complication is rare,it carries serious health *** SUMMARY We present a case of a 29-year-old female patient who developed acute CFE following facial fat filling *** the surgery,the patient experienced symptoms including headache,nausea,vomiting,and difficulty breathing,which was followed by neurological symptoms such as slurred speech and left-sided *** physical examination and auxiliary investigations,including blood tests,head and neck computed tomography angiography,and cranial magnetic resonance diffusion-weighted imaging,were performed upon *** clinical diagnosis was acute cerebral embolism following facial fat filling *** included measures to improve cerebral circulation,dehydration for intracranial pressure reduction,nutritional support,and rehabilitation therapy for left limb *** patient showed a significant improvement in symptoms after 2 weeks of *** recovered left limb muscle strength to grade 5,had clear speech,and experienced complete relief of *** Our case highlights the potential occurrence of severe complications in patients undergoing fat injection in facial *** prevent these complications,plastic surgeons should enhance their professional knowledge and skills.

关键词： Cerebral fat embolism Mechanical thrombectomy Thrombolysis Steroid therapy Symptomatic treatment Case report

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徐往子井田煤层气U形水平井施工设计

煤炭技术 2017年第5期36卷 53-55页

作者：张超黄华州张大旺闫庆磊周阳赵英凯中国矿业大学资源与地球科学学院煤层气资源与成藏过程教育部重点实验室江苏徐州221008 东北煤田地质局103勘探队辽宁辽阳111000 东北煤田地质局油气开发研究院沈阳110013

以辽阳红阳煤田徐往子井田为研究区,探讨了该区U形井剖面设计方法的选择及施工工艺的设计。通过对储层特征的研究,设计水平段方位沿煤层倾向方向,对比分析了单增剖面和双增剖面轨迹设计优缺点,选择了双增剖面设计U形井轨迹;设计了三开... 详细信息

以辽阳红阳煤田徐往子井田为研究区,探讨了该区U形井剖面设计方法的选择及施工工艺的设计。通过对储层特征的研究,设计水平段方位沿煤层倾向方向,对比分析了单增剖面和双增剖面轨迹设计优缺点,选择了双增剖面设计U形井轨迹;设计了三开井身结构,通过施工,轨迹施工效果良好,成功连通两井。

关键词：煤层气 U形井井眼轨迹钻井工艺

Numerical analysis of a double interlocking padded finger seal performance based on thermo-fluid-structure coupling method

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Propulsion and Power Research 2023年第2期12卷 238-252页

作者： hua Su Yuhui huang chao Wu School of Mechanical Engineering Northwestern Polytechnical UniversityXi’an 710072China

Non-contacting finger seals represent an advanced non-contacting and compliant seal in gas turbine sealing *** paper proposes a new structure of noncontacting finger seals with double interlocking *** numerical analysis model based on the thermo-fluid-structure coupling method for the new type finger seal was *** influence of working conditions on leakage of the seal was studied and compared with the single padded non-contacting finger *** results show that the interface between the bottom of the finger pad and rotor surface is the main leakage path that forms the gas film with obvious variations of pressure and flow *** high temperature and high pressure operating conditions,the hydrodynamic effect of the gas film is enhanced,and lifting force is significantly *** deformation of fingers is composed of elastic deformation and thermal *** room temperature,the deformation of fingers is mainly elastic deformation and points to the center of the rotor,which reduces the gas film *** deformation of fingers at high temperature and high pressure creates a circumferentially convergent gap between the bottom of the pad and the rotor,which is beneficial to improve the loading capacity and to reduce leakage of the *** with the typical single padded noncontacting finger seal,the double interlocking padded finger seal proposed in this paper reduces the leakage factor by about 37%,which provides an advanced seal concept with the potential to improve sealing performance under high temperature and high pressure working conditions.

关键词： Finger seal Double interlocking pads Thermo-fluid-structure coupling Leakage Simulation

A New Class of Multi-wavelet Bases: V-System

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Acta Mathematica Sinica,English Series 2012年第1期28卷 105-120页

作者： chao huang Li hua YANG Dong Xu QI College of Mathematics and Computational Science Shenzhen UniversityShenzhen 518060P.R.China School of Mathematics and Computational Science Sun Yat-sen UniversityGuangdong Province Key Laboratory of Computational ScienceGuangzhou 510275P.RChina Faculty of Information Technology Macao University of Science and TechnologyMaeauP.R.China

The V-system is a complete orthogonal system of functions defined on the interval [0, 1], generated by finite Legendre polynomials and the dilation and translation of a function generator, which consists of a finite number of continuous and discontinuous functions. The V-system has interesting properties, such as orthogonality, symmetry, completeness and short compact support. It is shown in this paper that the V-system is essentially a special multi-wavelet basis. As a result, some basic properties of the V-system are established through the well-developed theory of multi-wavelets. From this point of view, more other V-systems are constructed.

关键词： Multi-wavelets V-system complete orthogonal system

Solution for polarimetric radar cross section measurement and calibration

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Journal of Systems Engineering and Electronics 2014年第2期25卷 211-216页

作者： Peikang huang chao Ning Xiaojian Xu hua Yan Zhaoguo Hou Science and Technology on Electromagnetic Scattering Laboratory School of Electronic and Information Engineering Beihang University

The exact radar cross-section （RCS） measurement is difficult when the scattering of targets is low. Ful polarimetric cali-bration is one technique that offers the potential for improving the accuracy of RCS measurements. There are numerous polarimetric calibration algorithms. Some complex expressions in these algo-rithms cannot be easily used in an engineering practice. A radar polarimetric coefficients matrix （RPCM） with a simpler expression is presented for the monostatic radar polarization scattering matrix （PSM） measurement. Using a rhombic dihedral corner reflector and a metal ic sphere, the RPCM can be obtained by solving a set of equations, which can be used to find the true PSM for any target. An example for the PSM of a metal ic dish shows that the proposed method obviously improves the accuracy of cross-polarized RCS measurements.

关键词： radar cross section (RCS) polarization scattering ma-trix (PSM) polarimetric calibration polarimetry.

The regulatory impact of immune inhibitors on T cells of SD rats

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Asian Pacific Journal of Tropical Medicine 2014年第4期7卷 305-308页

作者： chao-hua Zhang Yan huang Gang Han Uropoiesis Surgical Department First Hospital of Baoding Medicine Clinical Hebei University College The People's Liberation Army 252 Hospital

Objective:To observe the regulatory impact of immune inhibitors on T cells in ***:Forty SD rats were selected and randomly divided into experimental group and control ***(SRL)0.4 mg/d to fill the stomach of the former one,saline lavage was used with the latter one for two *** flow cytometry to detect the two groups of rats with spleen and thymus level of CD4+CD25+T cells;and the spleen cells FoxP3 mRNA expression;Using ELISA method to detect TGF-β,IL-10 ***:The peripheral blood,spleen and thymus of CD4+CD25+T cells accounted for the proportion of mononuclear cells were significantly higher than that of control group(P<0.05);FoxP3 mRNA expression quantity also significantly higher than the control group(P<0.05);Experimental TGF-βin rats,IL-10 levels are significantly higher than control group(P<0.05).Conclusions:Immune inhibitors can regulatory CD4+CD25+foxp3+T cells in rats,a single nuclear cell proportion increase,shows that it can induce rat CD4+CD25+foxp3+regulatory T cells proliferation.

关键词： Immune inhibitors Regulatory T cells Influence Research

On the Conditional Bounds for Siegel Zeros

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Acta Mathematica Sinica,English Series 2022年第5期38卷 869-876页

作者： chao hua JIA Institute of Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190P.R.China hua Loo-Keng Key Laboratory of Mathematics Chinese Academy of SciencesBeijing 100190P.R.China School of Mathematical Sciences University of Chinese Academy of SciencesBeijng 100049P.R.China

In this paper,under a weakened version of Hardy–Littlewood Conjecture on the number of representations in Goldbach problem,we shall prove bounds for the Siegel zeros of real primitive Dirichlet characters for composi... 详细信息

关键词： Siegel zero Goldbach problem

Epigenetic Regulation of Amyloid-beta Metabolism in Alzheimer’s Disease

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Current Medical Science 2020年第6期40卷 1022-1030页

作者： Chuan HE Zhong-sheng huang chao-chao YU Hai-hua WANG hua ZhOU Li-hong KONG Hubei University of Chinese Medicine Wuhan 430060China Department of Tuina Shenzhen Traditional Chinese Medicine HospitalShenzhen 518000China The 4th Clinical College of Guangzhou University of Chinese Medicine Shenzhen 518000China Hospital of Traditional Chinese Medicine of Fengrun District Tangshan 064000China

Senile plaques(SPs)are one of the pathological features of Alzheimer’s disease(AD)and they are formed by the overproduction and aggregation of amyloid-beta(Aβ)peptides derived from the abnormal cleavage of amyloid precursor protein(APP).Thus,understanding the regulatory mechanisms during Aβ metabolism is of great importance to elucidate AD *** studies have shown that epigenetic modulation-including DNA methylation,non-coding RNA alterations,and histone modifications-is of great significance in regulating Aβ *** this article,we review the aberrant epigenetic regulation of Aβ metabolism.

关键词： Alzheimer’s disease amyloid-β epigenetics DNA methylation microRNAs histone modifications