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基于扩展不完备信息的无人战斗机综合战术灰色粗决策方法

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兵工学报 2010年第9期31卷 1279-1284页

作者：胡杰曹林平黄长强 94857部队77分队空军工程大学工程学院

为解决信息不完备条件下的无人战斗机(UCAV)综合战术决策问题,提出了一种基于扩展不完备信息的UCAV综合战术灰色粗决策方法。考虑粗糙集决策过程中决策属性发生缺失的情况,提出扩展不完备信息系统这一概念;按照"正向指标"的概念,建立聚... 详细信息

为解决信息不完备条件下的无人战斗机(UCAV)综合战术决策问题,提出了一种基于扩展不完备信息的UCAV综合战术灰色粗决策方法。考虑粗糙集决策过程中决策属性发生缺失的情况,提出扩展不完备信息系统这一概念;按照"正向指标"的概念,建立聚类指标样本矩阵;基于灰色定权聚类方法补全缺失的决策属性;依据使决策最有可能发生的原则,给出决策信息系统的最优选择,以该最优选择为代表提取出决策规则;根据软、硬杀伤结合使用的UCAV作战想定,建立了UCAV综合战术决策模型,并通过仿真实例给出了决策过程,验证了该方法的正确性和有效性。结果表明:该方法能在条件属性和决策属性都存在部分缺失的情况下正确给出UCAV综合战术行为。

关键词：运筹学无人战斗机扩展不完备信息粗糙集灰色定权聚类战术决策

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强化检察委员会司法属性之路径探析

河北法学 2011年第11期29卷 21-28页

作者：刘昌强西南政法大学重庆400031

在检察委员会的规范化建设已取得明显成效的情况下,应当更多地关注检察委员会的司法属性问题和决策机制的改革完善。检察委员会改革应遵循司法规律,将民主、高效、权威设定为基本目标,通过优化组织体系、改革决策模式、建立责任机制、... 详细信息

在检察委员会的规范化建设已取得明显成效的情况下,应当更多地关注检察委员会的司法属性问题和决策机制的改革完善。检察委员会改革应遵循司法规律,将民主、高效、权威设定为基本目标,通过优化组织体系、改革决策模式、建立责任机制、提升委员司法能力等强化其司法属性。在决策模式改革上,应借鉴吸纳审判合议制和党委票决制的合理内核,保证委员的"民主"地位、严格检察长的"集中"机制,确立一级检察委员会定案机制,以此增强检察委员会决策机制的司法属性。

关键词：检察委员会司法属性决策机制改革

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无人攻击机垂直命中目标的末制导律研究

兵工学报 2008年第2期29卷 184-187页

作者：翁兴伟黄长强刘子阳空军工程大学工程学院陕西西安710038

综合考虑电视指令制导无人攻击机的作战过程,将其末制导律设定为满足落角约束的目标跟踪问题,设计了一种基于自动驾驶仪末制导律,该方法消除了自动驾驶仪动态因素和重力等因素的影响;并通过以平行接近法作为辅助导引法来克服追踪法的缺... 详细信息

综合考虑电视指令制导无人攻击机的作战过程,将其末制导律设定为满足落角约束的目标跟踪问题,设计了一种基于自动驾驶仪末制导律,该方法消除了自动驾驶仪动态因素和重力等因素的影响;并通过以平行接近法作为辅助导引法来克服追踪法的缺陷;新的末制导律加自适应卡尔曼滤波,使得无人攻击机不仅可以对固定目标实施攻击也可以对低速移动目标实施攻击,且能保持无人攻击机垂直命中目标,提高作战效能。

关键词：飞行器控制导航技术电视制导无人攻击机制导与控制末制导律卡尔曼滤波

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视频传输差错时域掩盖方法研究

铁道学报 2004年第4期26卷 55-59页

作者：彭强诸昌钤西南交通大学计算机与通信工程学院四川成都610031

为了克服数字视频在铁路现场传输易出现信息丢失的问题,对视频差错掩盖技术进行了研究,提出一种对付视频传输差错的时域掩盖方法。将参考帧宏块(Macroblock)的运动向量依照其运动趋势外推,评估图像受损区域与这些外推预测宏块之间的相关... 详细信息

为了克服数字视频在铁路现场传输易出现信息丢失的问题,对视频差错掩盖技术进行了研究,提出一种对付视频传输差错的时域掩盖方法。将参考帧宏块(Macroblock)的运动向量依照其运动趋势外推,评估图像受损区域与这些外推预测宏块之间的相关性,估算出受损块的运动向量,实现受损图像区域的掩盖。为克服物体边界不正确替代的缺点,将所提出的算法与改进的边界匹配(BoundaryMatching)算法相结合实现了较为平滑的掩盖。基于H.263+的仿真实验表明,在间隔丢失GOB(GroupofBlock)或整帧图像完全丢失情况下,可以取得较为满意的效果。

关键词：视频监控视频传输差错掩盖差错恢复 H.263+

The blood lactate/serum albumin ratio might represent a good prognostic indicator of 28-day mortality in patients with acute respiratory distress syndrome:a retrospective observational study

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Emergency and Critical Care Medicine 2024年第2期4卷 52-59页

作者： Jiahao Chen chang Gao Ling Yang Lijuan Yang Ying He Shiqi Guo Yuanxiao Sun Siyu He qiang Guo Department of Critical Care Medicine The First Affiliated Hospital of Soochow UniversitySuzhouJiangsuChina Department of Emergency and Critical Care Medicine Dushu Lake Hospital Affiliated to Soochow University(Suzhou Dushu Lake Hospital)SuzhouJiangsuChina

Background:Acute respiratory distress syndrome(ARDS)is an acute inflammatory lung injury with a high mortality ***,previous ARDS prognostic scoring systems or predictors have been limited by complex formulas that are relatively expensive and inconvenient to ***,this study aimed to explore the clinical significance of the blood lactate/serum albumin ratio(LAR)in assessing the prognosis of ARDS patients and compare it with other indicators related to 28-day mortality in ARDS ***:We conducted a single-center retrospective study involving patients who fulfilled the Berlin definition of ARDS between 2016 and *** data were collected from medical records within 24 hours after ARDS *** LAR,neutrophil-to-lymphocyte ratio,and monocyteto-lymphocyte ratio(MLR)were *** primary clinical outcome was 28-day *** risk factors for 28-day mortality were determined using conditional logistic regression *** receiver operating characteristic curve was used to evaluate the area under the curve(AUC).Results:A total of 276 ARDS patients met the inclusion criteria and were divided into surviving and nonsurviving groups according to 28-day *** were significant differences in the Acute Physiologic Assessment and Chronic Health Evaluation II scores,Sequential Organ Failure Assessment scores,MLRs,and LARs between the surviving and nonsurviving *** AUC for the LAR was 0.790(P<0.001),whereas the AUCs for the Acute Physiologic Assessment and Chronic Health Evaluation II score,Sequential Organ Failure Assessment score,neutrophil-to-lymphocyte ratio,and MLR were 0.584,0.599,0.524,and 0.587,*** grouping according to an LAR optimal cutoff value of 0.07,28-day mortality was significantly higher in the high-LAR group than in the low-LAR group(47.18 vs.12.69,P<0.001).Conclusion:The LAR is an independent risk factor for 28-day mortality in ARDS patients and can be used to assess the severity of

关键词： Acute respiratory distress syndrome Albumin Lactate Mortality Predictor

Role of gut microbiota in Crohn’s disease pathogenesis:Insights from fecal microbiota transplantation in mouse model

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World Journal of Gastroenterology 2024年第31期30卷 3689-3704页

作者： qiang Wu Lian-Wen Yuan Li-Chao Yang Ya-Wei Zhang Heng-chang Yao Liang-Xin Peng Bao-Jia Yao Zhi-Xian Jiang Geriatric Surgery of Department of General Surgery The Second Xiangya HospitalCentral South UniversityChangsha 410011Hunan ProvinceChina

BACKGROUND Inflammatory bowel disease,particularly Crohn’s disease(CD),has been associated with alterations in mesenteric adipose tissue(MAT)and the phenomenon termed“creeping fat”.Histopathological evaluations showed that MAT and intestinal tissues were significantly altered in patients with CD,with these tissues characterized by inflammation and *** To evaluate the complex interplay among MAT,creeping fat,inflammation,and gut microbiota in *** Intestinal tissue and MAT were collected from 12 patients with *** manifestations and protein expression levels were analyzed to determine lesion *** samples were collected from five recently treated CD patients and five control subjects and transplanted into *** intestinal and mesenteric lesions in these mice,as well as their systemic inflammatory status,were assessed and compared in mice transplanted with fecal samples from CD patients and control *** Pathological examination of MAT showed significant differences between CDaffected and unaffected colons,including significant differences in gut microbiota *** microbiota transplantation(FMT)from clinically healthy donors into mice with 2,4,6-trinitrobenzene sulfonic acid(TNBS)-induced CD ameliorated CD symptoms,whereas FMT from CD patients into these mice exacerbated CD ***,FMT influenced intestinal permeability,barrier function,and levels of proinflammatory factors and ***,FMT from CD patients intensified fibrotic changes in the colon tissues of mice with TNBS-induced *** Gut microbiota play a critical role in the histopathology of *** MAT and creeping fat may therefore have potential in the treatment of patients with CD.

关键词： Mesenteric adipose tissue Crohn’s disease Fecal microbiota transplantation Intestinal fibrosis Intestinal barrier

Molecular phylogenetic relationships based on mitochondrial genomes of novel deep-sea corals(Octocorallia:Alcyonacea):Insights into slow evolution and adaptation to extreme deep-sea environments

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Zoological Research 2024年第1期45卷 215-225页

作者： Zhan-Fei Wei Kai-Wen Ta Nan-Nan Zhang Shan-Shan Liu Liang Meng Kai-qiang Liu Chong-Yang Cai Xiao-Tong Peng chang-Wei Shao National Key Laboratory of Mariculture Biobreeding and Sustainable Goods Yellow Sea Fisheries Research InstituteChinese Academy of Fishery SciencesQingdaoShandong 266071China BGI-Qingdao BGI-ShenzhenQingdaoShandong 266555China Institute of Deep-Sea Science and Engineering Chinese Academy of SciencesSanyaHainan 572000China

A total of 10 specimens of Alcyonacea corals were collected at depths ranging from 905 m to 1633 m by the manned submersible Shenhai Yongshi during two cruises in the South China Sea(SCS).Based on mitochondrial genomic characteristics,morphological examination,and sclerite scanning electron microscopy,the samples were categorized into four suborders(Calcaxonia,Holaxonia,Scleraxonia,and Stolonifera),and identified as 9 possible new cold-water coral *** of GC-skew dissimilarity,phylogenetic distance,and average nucleotide identity(ANI)revealed a slow evolutionary rate for the octocoral mitochondrial *** nonsynonymous(Ka)to synonymous(Ks)substitution ratio(Ka/Ks)suggested that the 14 protein-coding genes(PCGs)were under purifying selection,likely due to specific deep-sea environmental *** analysis of the median Ka/Ks values of five gene families and environmental factors indicated that the genes encoding cytochrome b(cyt b)and DNA mismatch repair protein(mutS)may be influenced by environmental factors in the context of deep-sea species *** study highlights the slow evolutionary pace and adaptive mechanisms of deep-sea corals.

关键词： Mitochondrial genome Alcyonacea Ka/Ks evolution Environmental factors

Stimulated Brillouin interaction between guided phonons and photons in a lithium niobate waveguide

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Science China(Physics,Mechanics & Astronomy) 2024年第1期67卷 173-175页

作者： Yuan-Hao Yang Jia-Qi Wang Zheng-Xu Zhu Xin-Biao Xu qiang Zhang Juanjuan Lu Yu Zeng Chun-Hua Dong Luyan Sun Guang-Can Guo chang-Ling Zou CAS Key Laboratory of Quantum Information University of Science and Technology of ChinaHefei 230026China CAS Center for Excellence in Quantum Information and Quantum Physics University of Science and Technology of ChinaHefei 230026China Key Laboratory of Quantum Optics and Quantum Optics Devices Institute of Opto-ElectronicsShanxi UniversityTaiyuan 030006China School of Information Science and Technology ShanghaiTech UniversityShanghai 201210China Center for Quantum Information Institute for Interdisciplinary Information SciencesTsinghua UniversityBeijing 100084China

The Brillouin scattering is one of the strongest nonlinear optical effects in dielectrics[1].In particular,the backward Brillouin scattering(BBS)provides an efficient method to achieve low-noise optical gain for active photonics[2]and the coherent interconnects between 10 GHz phonons and photons[3].However,previous studies on BBS are primarily limited to the unconfined phonons[1]or phonon confined in suspended structures[4-6].

关键词： scattering waveguide Brillouin

UTSTF锂离子电池时变参数估计与故障诊断

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浙江大学学报（工学版） 2018年第6期52卷 1223-1230页

作者：葛云龙陈自强郑昌文上海交通大学海洋工程国家重点实验室高新船舶与深海开发装备协同创新中心上海200240

针对锂离子电池的参数偏差型故障诊断问题,提出基于无迹变换强跟踪滤波器(UTSTF)的电池时变参数估计与故障诊断方法.建立电池的开路电压(OCV)-荷电状态(SOC)特性曲线与一阶等效电路模型;将电池参数加入状态变量,建立状态与参数的联合状... 详细信息

针对锂离子电池的参数偏差型故障诊断问题,提出基于无迹变换强跟踪滤波器(UTSTF)的电池时变参数估计与故障诊断方法.建立电池的开路电压(OCV)-荷电状态(SOC)特性曲线与一阶等效电路模型;将电池参数加入状态变量,建立状态与参数的联合状态空间方程,通过UTSTF算法得到电池参数的实时估计结果,并根据估计值设计故障诊断算法流程;以电池内部的接触型故障与扩散型故障为例,在变温环境下模拟故障发生并进行电池充放测试,得到电池参数在UTSTF与无迹卡尔曼滤波(UKF)下估计值与真实值的对比.实验结果表明,所提方法对于电池故障参数具有良好的跟踪效果、较高的估计精度与诊断可靠性.

关键词：锂离子电池时变参数无迹变换强跟踪滤波器(UTSTF) 故障诊断