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Research on monopulse forward-looking high-resolution imaging algorithm based on adaptive iteration

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Defence Technology（防务技术） 2020年第1期16卷 158-171页

作者： cheng cheng Xiao-dong Zhou min Gao Zhu-lin Zong Yong-xiang Ji Bo yu Department of Missile Engineering Army Engineering UniversityNo.97 Westroad HepingShijiazhuangChina Department of Ammunition Engineering Army Engineering UniversityNo.97 Westroad HepingShijiazhuangChina Research Institute of Electronic Science and Technology University of Electronic Science and TechnologyNo.4Section 2Jianbei RoadChengduChina China Huayin Weapon Test Center No.450 Yuemiao StreetHuayinShaanxiChina North Automatic Control Technology Institute No.351 Tiyu RoadTaiyuanChina

In this paper,we proposed a monopulse forward-looking high-resolution imaging algorithm based on adaptive iteration for missile-borne *** iteration,the proposed algorithm automatically selects the echo signal of isolated strong-scattering points from the receiving echo signal data to accurately estimate the actual optimal monopulse response curve(MRC) of the same distance range,and we applied optimal MRC to realize the azimuth self-focusing in the process of *** use real-time echo data to perform error correction for obtaining the optimal MRC,and the azimuth angulation accuracy may reach the optimum at a certain distance *** experimentally demonstrate the validity,reliability and high performance of the proposed *** azimuth angulation accuracy may reach up to ten times of the detection *** simulation experiments have verified the feasibility of this strategy,with the average height measurement error being 7.8%.In the out-field unmanned aerial vehicle(UAV) tests,the height measurement error is less than 25 m,and the whole response time can satisfy the requirements of a missile-borne detector.

关键词： Monopulse imaging High-resolution Adaptive iteration Missile-borne detector

Scattering Phase Correction for Semiclassical Quantization Rules in Multi-Dimensional Quantum Systems

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Communications in Theoretical Physics 2010年第2期53卷 250-256页

作者： HUANG Wen-min MOU Chung-yu CHANG cheng-Hung Department of Physics National Tsing-Hua University Hsinchu Taiwan physics Division National Center for Theoretical Sciences Hsinchu Taiwan Institute of Physics National Chiao Tung University Hsinchu Taiwan Institute of Mathematical Modeling and Scientific Computing National Chiao Tung University Hsinchu Taiwan

While the scattering phase for several one-dimensional potentials can be exactly derived, less is known in multi-dimensional quantum systems. This work provides a method to extend the one-dimensional phase knowledge to multi-dimensional quantization rules. The extension is illustrated in the example of Bogomolny＇s transfer operator method applied in two quantum wells bounded by step potentials of different heights. This generalized semiclassical method accurately determines the energy spectrum of the systems, which indicates the substantial role of the proposed phase correction. Theoretically, the result can be extended to other semiclassical methods, such as Gutzwiller trace formula, dynamical zeta functions, and semielassical Landauer Buttiker formula. In practice, this recipe enhances the applicability of semiclassical methods to multi-dimensional quantum systems bounded by general soft potentials.

关键词： Bogomolny's transfer operator semiclassical quantization rules quantum chaos

Bimetallic active site nuclear-shell heterostructure enables efficient dual-functional electrocatalysis in alkaline media

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Rare Metals 2023年第9期42卷 3024-3033页

作者： yu cheng Xi Zhou Qin-min Pan Li-Fang Zhang yu-Feng Cao Tao Qian School of Chemistry and Chemical Engineering Nantong UniversityNantong226019China Institute of Chemical Industry of Forestry Products Chinese Academy of ForestryKey Lab.of Biomass Energy and MaterialNanjing210000China School of Chemical and Environmental Engineering College of ChemistryChemical Engineering and Material ScienceSoochow UniversitySuzhou215123China Department of Chemical Engineering University of WaterlooWaterlooONN2L 3G1Canada

Hydrogen,as a green and clean next-generation fuel,is a key to achieving the goal of carbon *** an electrocatalyst with bifunctional hydrogen evolution and oxygen evolution activity in the same electrolyte is a key technology for producing hydrogen via water ***,a bimetallic active site catalyst,which possessed an edge-riched MoS_(2)nanoflakes array vertically growing on cubic CoS_(2),forming a nuclear-shell heterogeneous configuration,termed CSC-Mo S_(2)@Co S_(2).was reported The optimal CSC-Mo S_(2)@Co S_(2)-24 possessed good dualfunctional electrocatalytic activity(hydrogen evolution(HER),10 m A·cm^(-2)@241.5 m V and oxygen evolution(OER),10 m A·cm^(-2)@350 m V).Especially,CSC-Mo S_(2)@CoS_(2)-24 exhibited an extremely high mass activity for HER,and only required an overpotential of~550 m V when reaching a large current density of 1422 m A·mg^(-1),which was20.6-fold that of the bulk CoS_(2)(69 m A·mg^(-1)),as well as exhibiting stability of up to 100 *** good electrocatalytic performance was attributed to the nuclear-shell heterostructure of Mo S_(2)@CoS_(2)hybrid could bring critical synergies,improving efficient mass transfer and electron transfer processes between Co S_(2)and Mo S_(2),which collaboratively promoted the electrocatalytic *** is foreseeable that the method proposed in this work will have guiding value for the preparation of dual-functional electrocatalysts with multi-interface heterostructures by assembling layered sulfides on cubic sulfides.

关键词： Dual-functional electrocatalysts Nuclearshell cubic heterostructure Edge-riched Bimetallic active site Strong interaction

护心康片治疗冠心病不稳定型心绞痛临床疗效及对肿瘤坏死因子-α和N端脑钠肽的影响

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中国中医药信息杂志 2016年第3期23卷 16-19页

作者：王国倩喻敏成喻正科陈志红谢洪途湖南省中医药研究院附属医院湖南长沙410006 南昌大学医学院第一临床学院江西南昌330006 空军预警学院湖北武汉430019

目的观察护心康片对冠心病不稳定型心绞痛(UAP)患者的疗效及对肿瘤坏死因子-α(TNF-α)和N端脑钠肽(NT-pro BNP)的影响。方法将60例UAP患者随机分为治疗组和对照组各30例,均给予常规西药治疗,治疗组加服护心康片,对照组加服通心络胶囊,... 详细信息

目的观察护心康片对冠心病不稳定型心绞痛(UAP)患者的疗效及对肿瘤坏死因子-α(TNF-α)和N端脑钠肽(NT-pro BNP)的影响。方法将60例UAP患者随机分为治疗组和对照组各30例,均给予常规西药治疗,治疗组加服护心康片,对照组加服通心络胶囊,疗程4周。观察2组患者临床疗效及治疗前后TNF-α和NT-pro BNP水平变化。结果 2组综合疗效、心电图疗效、心绞痛疗效、中医证候疗效和硝酸甘油停减情况组间比较差异均有统计学意义(P<0.05),治疗组优于对照组。TNF-α和NT-pro BNP水平,组内治疗前后比较差异均有统计学意义(P<0.05),治疗后组间比较差异均有统计学意义(P<0.05),治疗组优于对照组。结论护心康片治疗UAP患者疗效显著,能有效降低TNF-α和NT-pro BNP水平。

关键词：冠心病不稳定型心绞痛护心康片肿瘤坏死因子-α N端脑钠肽

Resistance of Cement-based Grouting Materials with Nano-SiO2 Emulsion to Chloride Ion Penetration

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Journal of Wuhan University of Technology(Materials Science) 2025年第1期 114-119页

作者：黎水平 cheng Jian WEI Chao yuAN Bin yu chengxiao College of Architectural Science and Engineering Yangzhou University

The chloride penetration resistance of cement-based grout materials was improved by nano-silica *** of mixtures containing different nano-silica particles or emulsions were exposed in sodium chloride solutions of specific concentrations with different test *** properties of the mixes were assessed in terms of weight loss and compressive strength.X-ray diffraction （XRD） and scanning electron microscopy （SEM） of mixes were performed to analysis the phase evolution and *** results demonstrated that the introduction of nano-SiO2emulsion significantly decreased the compressive strength loss and calcium hydroxide （CH） crystal content of hydration production,and then enhanced the resistance of cement-based grouting materials to chloride ion *** improvement derives from the filling and pozzolanic effects of nano-SiO2particles,which were incorporated via an emulsion and attributed to a well dispersion in grouting matrix.

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A multithreaded parallel upwind sweep algorithm for the S_(N) transport equations discretized with discontinuous finite elements

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Nuclear Science and Techniques 2023年第12期34卷 229-241页

作者： Zhi‑Wei Zong Mao‑Song cheng Ying‑Chi yu Zhi‑min Dai Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China University of Chinese Academy of Sciences Beijing 100049China

The complex structure and strong heterogeneity of advanced nuclear reactor systems pose challenges for high-fidelity neutron-shielding calculations. Unstructured meshes exhibit strong geometric adaptability and can overcome the deficiencies of conventionally structured meshes in complex geometry modeling. A multithreaded parallel upwind sweep algorithm for S_(N) transport was proposed to achieve a more accurate geometric description and improve the computational efficiency. The spatial variables were discretized using the standard discontinuous Galerkin finite-element method. The angular flux transmission between neighboring meshes was handled using an upwind scheme. In addition, a combination of a mesh transport sweep and angular iterations was realized using a multithreaded parallel technique. The algorithm was implemented in the 2D/3D S_(N) transport code ThorSNIPE, and numerical evaluations were conducted using three typical benchmark problems:IAEA, Kobayashi-3i, and VENUS-3. These numerical results indicate that the multithreaded parallel upwind sweep algorithm can achieve high computational efficiency. ThorSNIPE, with a multithreaded parallel upwind sweep algorithm, has good reliability, stability, and high efficiency, making it suitable for complex shielding calculations.

关键词： Shielding calculation Discrete ordinates method Discontinuous Galerkin finite element method Unstructured meshes

Advances in ethnopharmacology,phytochemistry and pharmacology of Erigerontis Herba and its Chinese medicine prescriptions

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Traditional Medicine Research 2025年第1期10卷 44-61页

作者： Yang Zhou yuan-Yan Huang Ding-yue Shang Ying Chen Meng Tian cheng-yu Jin Xin Lu Bing-Chun Yan Han-Qing Pang Institute of Translational Medicine School of MedicineYangzhou UniversityYangzhou 225009China Jiangsu Key Laboratory of Integrated Traditional Chinese and Western Medicine for Prevention and Treatment of Senile Diseases Yangzhou UniversityYangzhou 225009China School of Medicine Nanjing University of Chinese MedicineNanjing 210023China State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources Guangxi Normal UniversityGuiling 541004China.

Erigerontis Herba(EH),the dried whole plant of Erigeron breviscapus,is well-known for circulating blood,activating meridians to alleviate pain,expelling wind,and clearing away *** has been extensively utilized in southern China for the treatment of stroke hemiplegia,chest stuffiness and pains,rheumatic arthralgia,headache,and *** review focuses on the botany,ethnopharmacology,phytochemistry,pharmacology and toxicity of EH and its related prescriptions to offer new insights for prospective research of *** information about EH was retrieved from ancient records and books,PubMed,China National Knowledge Infrastructure,Chinese Pharmacopoeia,Web of Science,Doctoral and Master’s Theses,and various electronic *** is a member of Compositae family and is mainly grown in southern *** Chinese medicine records that EH has the effects of circulating blood and removing blood stasis,expelling wind,and removing cold,as well as relieving rigidity of muscle and relieving *** now,nearly 200 ingredients have been characterized from EH,including flavonoids,caffeoyls,aromatic acids,coumarins,pentacyclic terpenoids,volatile oil and other *** extracts,EH related prescriptions(Dengzhan Xixin injection,Dengzhan Shengmai capsules,etc.)or compounds(scutellarin,scutellarein,etc.)possessed obvious therapeutic effects of ischemic stroke,cerebral hemorrhage,myocardial infarction,Alzheimer’s disease,diabetes and its complications,gastric cancer,bone,and joint degenerative ***,the major active compound of EH,has been used as a quality *** no obvious toxicity of EH has been *** to its traditional applications,ethnopharmacology,phytochemistry,pharmacology,and toxicity,EH was applied as a valuable herb for clinical application in food and medicine *** several compounds have been shown to possess diverse biological activities,the underlying mechanisms of their actions remain *** fully exploi

关键词： Erigeron breviscapus traditional applications ethnopharmacology phytochemistry pharmacology

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活性炭对鹅膏毒肽及鬼笔毒肽的体外吸附研究

中国急救医学 2021年第8期41卷 709-713页

作者：钟加菊姚群梅唐燕蒲艳余成敏楚雄彝族自治州人民医院云南楚雄675000

目的研究活性炭对致命鹅膏中α-鹅膏毒肽(α-amanitin,α-AMA)及β-鹅膏毒肽(β-amanitin,β-AMA)、羧基三羟鬼笔毒肽(phallisacin,PSC)、羧基二羟鬼笔毒肽(phallacidin,PCD)的吸附效果。方法应用反相高效液相色谱法检测不同吸附剂、不... 详细信息

目的研究活性炭对致命鹅膏中α-鹅膏毒肽(α-amanitin,α-AMA)及β-鹅膏毒肽(β-amanitin,β-AMA)、羧基三羟鬼笔毒肽(phallisacin,PSC)、羧基二羟鬼笔毒肽(phallacidin,PCD)的吸附效果。方法应用反相高效液相色谱法检测不同吸附剂、不同时间、不同剂量及不同p H条件下对致命鹅膏中α-AMA、β-AMA、PSC及PCD吸附情况。结果 (1)活性炭粉对α-AMA、β-AMA、PSC及PCD的吸附率远高于药用炭片、蒙脱石散及白陶土(P 药用炭片>蒙脱石散>白陶土,p H 6.8时分别为6.36 mg/g、0.85mg/g、0.84 mg/g及0.48 mg/g;p H 1.2时分别为5.87 mg/g、1.29 mg/g、1.11 mg/g及0.18 mg/g。(2)活性炭粉对毒素吸附在1 h内达到快速平衡,p H 6.8时α-AMA、β-AMA、PSC及PCD的吸附率分别为56.56%、26.40%、54.78%及51.93%;p H 1.2时分别为35.70%、52.82%、59.55%及62.39%。(3)活性炭粉对毒素的吸附呈现剂量依赖,当剂量为300.00 mg时,对所有毒素的吸附率均> 85.00%。(4)毒素吸附总量在p H 1.2、p H 2.0、p H 5.0、p H 6.8和p H 8.0分别为5.87 mg/g、5.65 mg/g、4.68 mg/g、6.23 mg/g和5.99 mg/g,p H 5.0时毒素吸附总量显著低于其他p H(P <0.01)。结论活性炭粉对致命鹅膏中鹅膏毒肽和鬼笔毒肽吸附效果最好,其吸附呈现时间和剂量依赖性,并且在胃肠道环境中呈现很好的吸附效果。

关键词：活性炭致命鹅膏体外吸附鹅膏毒肽鬼笔毒肽

Recent progress on photoactive nonprecious transition-metal complexes

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Science China Chemistry 2025年第1期 46-95页

作者： Zhong-Liang Gong Hong-Jie Zhang Yan cheng Jianxun Liu yuhan Ai Yaqin Li Zhihui Feng Qiong Zhang Shaolong Gong Yong Chen Chang-Jiang Yao yuan-yuan Zhu Liang-Jin Xu yu-Wu Zhong CAS Key Laboratory of Photochemistry Institute of Chemistry Chinese Academy of Sciences State Key Laboratory of Structural Cemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences School of Chemistry and Chemical Engineering Anhui Key Laboratory of Advanced Catalytic Materials and Reaction EngineeringHefei University of Technology State Key Laboratory of Explosion Science and Safety Protection School of Mechatronical Engineering Beijing Institute of Technology College of Chemistry and Molecular Sciences Hubei Key Lab on Organic and Polymeric Optoelectronic Materials Wuhan University School of Chemistry and Chemical Engineering Anhui University Key Laboratory of Photochemical Conversion and Optoelectronic Materials & CAS-HKU Joint Laboratory on New Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences

Photoactive complexes of nonprecious transition metals, mainly including those in the first-row and partially the second-row of the Periodic table of elements, have received increasing attention in view of their low cost and long-term sustainability. They are recognized as promising alternatives to noble transition metal complex congeners that have been extensively studied in optoelectronic devices, artificial photosynthesis, photocatalysis, biodiagnostics, and therapeutics, etc. This review is devoted to a comprehensive summary on the classical and recent advances on photoactive nonprecious transition metal complexes, including photoactive Zr, V, Cr, Mo, and W complexes, Mn complexes and hybrids, Fe, Co, Ni, and Cu complexes, and Zn and Cd complexes and hybrids. A particular focus is given on the molecular design, modulation of photophysical and photochemical properties, and applications of the representative and lately-developed nonprecious metal complexes. In addition, a perspective on the future development in this field is provided at the end of this review.

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