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Defence Technology（防务技术） 2022年第5期18卷 843-854页

作者： Kun yang Lang Chen Dan-yang Liu De-shen geng Jian-ying lu Jun-ying Wu State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China

A deep understanding of explosive sensitivities and their factors is important for safe and reliable ***,quantitative prediction of the sensitivities is ***,reactive molecular dynamics simulation models for high-speed piston impacts on explosive supercells were *** were also performed to investigate shock-induced reactions of various high-energy *** fraction of reacted explosive molecules in an initial supercell changed linearly with the propagation distance of the shock-wave *** corresponding slope could be used as a reaction rate for a specific shock-loading *** rates that varied with the shock-loading pressure exhibited two-stage linearities with different *** two inflection points corresponded to the initial and accelerated reactions,which respectively correlated to the thresholds of shock-induced ignition and ***,the ignition and detonation critical pressures could be *** sensitivity could then be a quantitative prediction of the critical *** accuracies of the quantitative shock sensitivity predictions were verified by comparing the impact and shock sensitivities of common explosives and the characteristics of anisotropic shock-induced *** dynamics simulations quantitatively predict and rank shock sensitivities by using only crystal structures of the ***,this method will enable the design and safe use of explosives.

关键词： Explosive Shock sensitivity Quantitative prediction Reactive molecular dynamics simulation

子宫腺肌病组织中的雌激素、雌激素受体、miR-21:致病作用和调控作用

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南方医科大学学报 2024年第4期44卷 627-635页

作者：曾玉燕贾金金卢洁曾诚耿红玲陈颐广州中医药大学第二附属医院妇科广东广州510120 广州中医药大学第一附属医院妇科广东广州510405

目的探讨miR-21、雌激素(E2)及其受体(ER)在子宫腺肌病发病中的具体机制。方法采用qRT-PCR检测miR-21在子宫腺肌病组织中水平,以宫颈病变为对照组。体外原代培养子宫腺肌病细胞,qRT-PCR检测E2激活组、ICI82780(ER抑制剂)+E2激活组、E2... 详细信息

目的探讨miR-21、雌激素(E2)及其受体(ER)在子宫腺肌病发病中的具体机制。方法采用qRT-PCR检测miR-21在子宫腺肌病组织中水平,以宫颈病变为对照组。体外原代培养子宫腺肌病细胞,qRT-PCR检测E2激活组、ICI82780(ER抑制剂)+E2激活组、E2剥夺组、E2剥夺+ER抑制组及对照组各组miR-21水平。miR-21mimic、miR-21inhibitor转染子宫腺肌病细胞,分别过表达和干扰miR-21,从正反两方面验证miR-21对子宫腺肌病细胞增殖、凋亡、迁移及细胞自噬等超微结构的影响。结果miR-21在子宫腺肌病病灶组织中的表达水平明显高于正常子宫肌层中表达水平(P0.05);E2激活状态下,E2激活组miR-21表达水平较ER抑制+E2激活组及对照组升高(P<0.05);E2剥夺状态下,E2剥夺+ER抑制组miR-21表达水平较E2剥夺组及对照组降低(P<0.05);干扰miR-21可以抑制子宫腺肌病细胞增殖和迁移,使线粒体内质网不同程度扩张、溶酶体增多、自噬小体出现,促进细胞的凋亡;而过表达miR-21则发挥相反的作用。结论MiR-21在子宫腺肌病细胞中通过改变细胞超微结构而发挥促增殖、迁移及抗凋亡的作用,可能与疾病的早期形成有关;ER除与E2结合调控miR-21外还可通过其他途径调控miR-21,这可能是子宫腺肌病的发病机制之一,其中ER对miR-21的调控作用大于E2。

关键词：子宫腺肌病 miR-21 雌激素雌激素受体

Laser direct writing of Ga_(2)O_(3)/liquid metal-based flexible humidity sensors

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光电进展(英文) 2023年第7期6卷 30-39页

作者： Songya Cui Yuyao lu Depeng Kong Huayu luo Liang Peng geng yang Huayong yang Kaichen Xu State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical EngineeringZhejiang UniversityHangzhou 310030China School of Information and Electrical Engineering Hangzhou City UniversityHangzhou 310015China

Flexible and wearable humidity sensors play a vital role in daily point-of-care diagnosis and noncontact human-machine ***,achieving a facile and high-speed fabrication approach to realizing flexible humidity sensors remains a *** this work,a wearable capacitive-type Ga_(2)O_(3)/liquid metal-based humidity sensor is demonstrated by a one-step laser direct writing *** to the photothermal effect of laser,the Ga_(2)O_(3)-wrapped liquid metal particles can be selectively sintered and converted from insulative to conductive traces with a resistivity of 0.19Ω·cm,while the untreated regions serve as active sensing layers in response to moisture *** 95%relative humidity,the humidity sensor displays a highly stable performance along with rapid response and recover *** these superior properties,the Ga_(2)O_(3)/liquid metal-based humidity sensor is able to monitor human respiration rate,as well as skin moisture of the palm under different physiological states for healthcare monitoring.

关键词： laser direct writing liquid metal humidity sensors flexible electronics wearable sensors

Consensus intuitionistic fuzzy group decision-making method for aircraft cockpit display and control system evaluation

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Journal of Systems Engineering and Electronics 2013年第4期24卷 634-641页

作者： Tao geng An Zhang Guangshan lu School of Electronics and Information Northwestern Polytechnical University

A novel group decision-making （GDM） method based on intuitionistic fuzzy sets （IFSs） is developed to evaluate the ergonomics of aircraft cockpit display and control system （ACDCS）. The GDM process with four steps is discussed. Firstly, approaches are proposed to transform four types of common judgement representations into a unified expression by the form of the IFS, and the features of unifications are analyzed. Then, the aggregation operator called the IFSs weighted averaging （IFSWA） operator is taken to synthesize decision-makers’ （DMs’） preferences by the form of the IFS. In this operator, the DM’s reliability weights factors are determined based on the distance measure between their preferences. Finally, an improved score function is used to rank alternatives and to get the best one. An illustrative example proves the proposed method is effective to valuate the ergonomics of the ACDCS.

关键词： aircraft cockpit display and control system (ACDCS) group decision-making (GDM) intuitionistic fuzzy set (IFS) different preference representation weighted averaging (WA) operator.

A Localization Method of High Energy Transients for All-sky Gamma-ray Monitor

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Research in Astronomy and Astrophysics 2024年第10期24卷 25-35页

作者： Yi Zhao Wangchen Xue Shaolin Xiong Qi luo Yuanhao Wang Jiacong Liu Heng Yu Xiaoyun Zhao Yue Huang Jinyuan Liao Jianchao Sun Xiaobo Li Qibin Yi Ce Cai Shuo Xiao Shenglun Xie Chao Zheng Yanqiu Zhang Chenwei Wang Wenjun Tan Zhiwei Guo Chaoyang Li Zhenghua An Gang Chen Yanqi Du Min Gao Ke Gong Dongya Guo Jiang He Jianjian He Bing Li Gang Li Xinqiao Li Jing Liang Xiaohua Liang Yaqing Liu Xiang Ma Rui Qiao Liming Song Xinying Song Xilei Sun Jin Wang Ping Wang Xiangyang Wen Hong Wu Yanbing Xu Sheng yang Dali Zhang Fan Zhang Hongmei Zhang Peng Zhang Shu Zhang Zhen Zhang Shijie Zheng Keke Zhang Xingbo Han Haiyan Wu Hu Tai Hao geng Gaopeng lu Wei Xu Fanchao Lyu Hongbo Zhang Fangjun lu Shuangnan Zhang Department of Astronomy Beijing Normal UniversityBeijing 100875China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China School of Physics and Optoelectronics Xiangtan UniversityXiangtan 411105China College of Physics Hebei Normal UniversityShijiazhuang 050024China Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing Guizhou Normal UniversityGuiyang 550001China School of Physics and Electronic Science Guizhou Normal UniversityGuiyang 550001China Institute of Astrophysics Central China Normal UniversityWuhan 430079China College of physics Sciences Technology Hebei UniversityBaoding 071002China Physics and Space Science College China West Normal UniversityNanchong 637002China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China College of Electronic and information Engineering Tongji UniversityShanghai 201804China Innovation Academy for Microsatellites of Chinese Academy of Sciences Shanghai 201304China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Earth and Space Sciences University of Science and Technology of ChinaHefei 230026China Electronic Information School Wuhan UniversityWuhan 430072China Key Laboratory of Transportation Meteorology of China Meteorological Administration Nanjing Joint Institute for Atmospheric SciencesNanjing 210000China Key Laboratory of Middle Atmosphere and Global Environment Observation Institute of Atmospheric PhysicsChinese Academy of SciencesBeijing 100029China

Fast and reliable localization of high-energy transients is crucial for characterizing the burst properties and guiding the follow-up *** based on the relative counts of different detectors has been widely used for all-sky gamma-ray *** are two major methods for this count distribution localization:χ^(2)minimization method and the Bayesian *** we propose a modified Bayesian method that could take advantage of both the accuracy of the Bayesian method and the simplicity of the χ^(2)*** comprehensive simulations,we find that our Bayesian method with Poisson likelihood is generally more applicable for various bursts than the χ^(2)method,especially for weak *** further proposed a location-spectrum iteration approach based on the Bayesian inference,which could alleviate the problems caused by the spectral difference between the burst and location *** method is very suitable for scenarios with limited computation resources or timesensitive applications,such as in-flight localization software,and low-latency localization for rapidly follow-up observations.

关键词： methods:data analysis methods:analytical (stars:)gamma-ray burst:general

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酸化与富磷影响农田土壤硅的移动性

中国土壤与肥料 2024年第1期 51-59页

作者：张庚金贾露露索猛利吴建富郑继成颜晓魏宗强曾庆阳江西农业大学国土资源与环境学院江西南昌330045 海南省三亚市南繁科学技术研究院海南三亚572022

硅是水稻等禾本科作物生长发育不可或缺的营养元素,pH影响着土壤中硅的有效性和形态转化,而土壤磷与硅之间存在明显的竞争吸附效应。以常年水稻-瓜/菜轮作农田土壤为研究对象,进行等摩尔硅磷竞争吸附试验、土壤培养试验和硅分组试验,模... 详细信息

硅是水稻等禾本科作物生长发育不可或缺的营养元素,pH影响着土壤中硅的有效性和形态转化,而土壤磷与硅之间存在明显的竞争吸附效应。以常年水稻-瓜/菜轮作农田土壤为研究对象,进行等摩尔硅磷竞争吸附试验、土壤培养试验和硅分组试验,模拟探究土壤酸化和磷富集对土壤硅的有效性及移动性的影响,以期为农田硅、磷养分管理提供一定的理论依据。结果表明,在pH 3.5~6.4范围内,同时加入等摩尔浓度的硅和磷时,磷的存在会抑制土壤吸附硅,使土壤对硅的吸附量降低78%~350%。土壤对硅的吸附小于对磷的吸附,磷的添加导致了土壤中硅的解吸。土壤酸化和磷添加均降低了土壤对硅的吸附,且在pH较高时添加磷对降低土壤吸硅的效果更为显著。土壤酸化降低了可移动态硅、吸附态硅、有机结合态硅和铁铝锰(氢)氧化物结合态硅的含量,但增加无定形态硅含量。与pH 6.4相比,酸化使可移动态硅和吸附态硅含量分别降低了22.47%~54.32%、10.72%~33.40%;磷添加使可移动态硅含量增加了4.07%~9.40%,吸附态硅含量降低了1.19%~3.53%。pH可调控土壤硅的溶解与吸附-解吸过程,从而影响土壤硅的移动性;磷富集促进土壤吸附态硅的解吸,进而增强土壤硅的移动性。

关键词：土壤酸化磷添加硅吸附特性硅形态硅移动性

NOx Emission Reduction Technology for Marine Engine Based on Tier-Ⅲ:A Review

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Journal of Thermal Science 2020年第5期29卷 1242-1268页

作者： lu Xiuwei geng Peng CHEN Yunyue Merchant Marine College Shanghai Maritime UniversityShanghai 201306China Tianjin Research Institute of Water Transport Engineering Tianjin 300456China

The development of maritime trade has greatly promoted the development of diesel ***,with the increasingly serious environmental problems,more and more attention has been paid to the exhaust emissions of high-power marine diesel *** restrictions on SOx have been implemented globally,and the limitation of the NO,will be the next *** paper illustrates(a)Principle and research progress of NOx emissions-reduction technology of marine diesel engine;(b)Summary of advantages and disadvantages among various reduction technologies and their reduction effects;(c)The application effect of mainstream technology on ***,since exhaust gas recirculation(EGR)can achieve Tier-Ⅲ directly from Tier-Ⅰ without considering the increased fuel *** is deemed as the most promising technology to reduce emissions by controlling combustion ***,EGR has shortcomings of excessive increase in ftiel consumption and generation of waste water,which need to be solved ***,selective catalytic reduction(SCR)is the most effective and straightforward means to achieve Tier-Ⅲ.Despite of the continuous optimization of SCR unit volume,the problem of scrap catalyst seriously limits its wide *** to match the supercharger more efficiently is a key factor in choosing between high and low pressure ***,nature gas(NG)engines are capable of achieving a reduction in NOx,but in order to meet the requirements of Tier-Ⅲ,it still needs to be assisted by other *** emissions of hydrocarbon(HC)and CO in NG engines are huge defects that must be ***,technologies such as the Miller cycle,Two-stage supercharging and mixed-water combustion can also reduce emissions but were rarely used *** technologies can be combined with EGR,SCR and NG engines to optimize the enginesJ economy and emission characteristics.

关键词： marine engine NOx emission Tier-Ill exhaust gas recirculation(EGR) selective catalytic reduction(SCR) dual-fuel

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灵活时间区间的态势显示方法设计与实现

计算机应用与软件 2024年第4期41卷 96-100,172页

作者：吉飞龙耿晨钟曾寅华鲁明成都市茶店子429信箱四川成都610036 中国人民解放军32069部队广东广州510540

态势显示多目标航迹和辐射电磁信号时,随着运行时间的增加会出现堆积显示问题,影响操作人员获取重点关注目标的活动情况,为此提出一种灵活时间区间显示方法,对不同类型目标数据按照时间戳进行过滤后显示。在态势不同运行状态下,如实时... 详细信息

态势显示多目标航迹和辐射电磁信号时,随着运行时间的增加会出现堆积显示问题,影响操作人员获取重点关注目标的活动情况,为此提出一种灵活时间区间显示方法,对不同类型目标数据按照时间戳进行过滤后显示。在态势不同运行状态下,如实时状态、回放状态,操作人员均可以灵活编辑时间区间,从而使实时态势和回放态势都能完整显示目标在编辑时间区间内的活动情况。通过使用模拟数据进行验证,实验结果表明该方法可以解决最多10000分钟内的态势堆积显示问题。

关键词：时间区间态势显示堆积显示实时态势回放态势

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宽体飞机地面主轮协同转弯控制律设计

飞控与探测 2024年第3期7卷 15-21页

作者：李晶杨世海耿计凯陆清同济大学机械与能源工程学院上海201804 上海飞机设计研究院上海201210

主轮协同转弯技术能有效提高飞机的地面机动性,降低主起落架在转弯过程中受到的附加侧向扭矩,减小重载飞机地面转弯半径,但目前实现此技术的前主轮转角控制律设计方法尚不明确。提出以主起落架受力为约束条件,计算不同滑行速度下的前主... 详细信息

主轮协同转弯技术能有效提高飞机的地面机动性,降低主起落架在转弯过程中受到的附加侧向扭矩,减小重载飞机地面转弯半径,但目前实现此技术的前主轮转角控制律设计方法尚不明确。提出以主起落架受力为约束条件,计算不同滑行速度下的前主轮转角关系,在全速度范围内进行分段选择并离散化,据此设计前主轮协同转弯控制律,以原理样机为对象进行仿真分析,验证了该控制律能有效降低两侧主起落架扭矩和的峰值。提出的设计方法对多轮系地面运载装备的复合转弯控制律设计具有一定的理论指导意义。

关键词：宽体飞机前主轮转角关系协同转弯控制律主起落架扭矩和离散分段原则

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陆游的内丹实践与爱国情怀

中国道教 2024年第3期 61-67页

作者：耿森福建师范大学文学院

两宋时期,内丹养生在文人间颇为流行。苏轼、苏辙、陆游、范成大、刘克庄、朱熹等人都曾不同程度地进行过内丹养炼。陆游《剑南诗稿》中关于内丹养生的诗歌有很多,这些内丹诗歌蕴含着陆游的生命哲理与生活情趣,是其养生修炼的真实记录。

关键词：刘克庄范成大陆游内丹养生爱国情怀两宋时期生活情趣生命哲理