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Impact of Startup Strategy and Buffer Tank Volume on the Compressor Inlet State for a 3-MW sCO2 Brayton Cycle

中国微生物学会《第二届全国农业微生物研究及产业化研讨会》和《第十一届全国杀虫微生物学术研讨会》暨《湖北省暨武汉市微生物学会和内蒙古微生物学会2008年会》

作者： Yan Li,Jin Peng,ping shi,Bin zhao (State Key Laboratory of Agricultural Microbiology,College of Life Science and Technology, Huazhong Agricultural University,Wuhan 430070,China)

The influence of cadmium(Cd)on the root colonization of Astragalus by two arbuscular mycorrhizal fungi(AMF)was *** sinicus *** in the soil in the presence of four levels of Cd was inoculated

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Journal of Thermal Science 2025年第1期34卷 159-175页

作者： zhao Decai WANG Bo Key Laboratory of Advanced Energy and Power Institute of Engineering Thermophysics(IET)Chinese Academy of Sciences (CAS) University of Chinese Academy of Sciences

The supercritical carbon dioxide（sCO2） Brayton cycle system has become an emerging and highly promising method of thermal power conversion due to its efficiency advantage,system compactness,and excellent adaptability of the heat *** the low carbon sCO2Brayton cycle testbed with cycle output power approaching 3 MW,a relatively detailed dynamic simulation model of the entire system is constructed to explore the dynamic response characteristics of the system with different startup strategies and different buffer tank volumes during the startup *** simulation results indicate that the smaller the volume of the buffer tank,the more rapid and obvious the parameter fluctuation in the buffer tank during the *** the allowable relative deviation limit of density is 5%,then the ratio of the buffer tank volume to the volume of the entire closed loop should not be lower than 36.80%.The strategy of simultaneous temperature and speed increase during turbine bypass start can effectively reduce the fluctuation of compressor inlet parameters and reach the steady-state more *** paper provides the recommended matching table for the opening of the turbine bypass valve（TBV） and the main regulating valve（MGV） to reduce the parameter fluctuation during the bypass *** effectiveness of the proposed turbine bypass and bypass switching startup strategy is verified by simulation,which may be used as a reference for test bench's future debugging and operation.

关键词： buffer tank dynamic characteristic dynamic model sCO2 Brayton cycle startup strategy

LiDAR-Visual SLAM with Integrated Semantic and Texture Information for Enhanced Ecological Monitoring Vehicle Localization

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Computers, Materials & Continua 2025年第1期82卷 1401-1416页

作者： Yiqing Lu Liutao zhao Qiankun zhao Foreign Environmental Cooperation Center Ministry of Ecology and Environment of PRCBeijing100035China Beijing Computing Center Co. Ltd.Beijing Academy of Science and TechnologyBeijing100083China Beijing Guyu Interactive Artificial Intelligence Application Co. Ltd.Beijing100024China

Ecological monitoring vehicles are equipped with a range of sensors and monitoring devices designed to gather data on ecological and environmental *** vehicles are crucial in various fields,including environmental science research,ecological and environmental monitoring projects,disaster response,and emergency management.A key method employed in these vehicles for achieving high-precision positioning is LiDAR(lightlaser detection and ranging)-Visual Simultaneous Localization and Mapping(SLAM).However,maintaining highprecision localization in complex scenarios,such as degraded environments or when dynamic objects are present,remains a significant *** address this issue,we integrate both semantic and texture information from LiDAR and cameras to enhance the robustness and efficiency of data ***,semantic information simplifies the modeling of scene elements,reducing the reliance on dense point clouds,which can be less ***,visual texture information complements LiDAR-Visual localization by providing additional contextual *** incorporating semantic and texture details frompaired images and point clouds,we significantly improve the quality of data association,thereby increasing the success rate of *** approach not only enhances the operational capabilities of ecological monitoring vehicles in complex environments but also contributes to improving the overall efficiency and effectiveness of ecological monitoring and environmental protection efforts.

关键词： LiDAR-Visual simultaneous localization and mapping integrated semantic texture information

Double [5]carbohelicene: facile synthesis, chiroptical properties,isomerization study, and lasing application

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Science China Chemistry 2025年第1期68卷 233-240页

作者： Peipei Liu Yantong Li Meng-Xiang Wu Hao Kang Xiao-Li zhao Lin Xu Linlin Liu Xiaodong Li Junfeng Fang Zhiwei Fang Ya Cheng Hai-Bo Yang Huakang Yu Xueliang shi State Key Laboratory of Petroleum Molecular & Process Engineering Shanghai Key Laboratory of Green Chemistry and Chemical ProcessesSchool of Chemistry and Molecular Engineering East China Normal University School of Physics and Optoelectronics South China University of Technology Institute of Polymer Optoelectronic Materials & Devices State Key Laboratory of Luminescent Materials & Devices South China University of Technology School of Physics and Electronic Science Engineering Research Center of Nanophotonics & Advanced Instrument Ministry of EducationEast China Normal University State Key Laboratory of Precision Spectroscopy School of Physics and Electronic Science East China Normal University

Double carbohelicenes have attracted considerable attention due to their aesthetic structures, distinct π-conjugation extension, inherent chirality, and intriguing optical and electronic properties. Herein, the concise de novo synthesis of a new double[5]carbohelicene 1 together with its chiroptical properties, isomerization process and lasing application is presented. 1 was synthesized by a simple protocol involving the formation of a 6,6′-bipentacene as the key intermediate. It is worth noting that1 existed as two diastereomers 1-PP/MM and 1-PM, which were successfully isolated and unambiguously confirmed by Xray crystallography. The optical resolution of the racemic 1-PP/MM was successfully achieved by chiral-phase highperformance liquid chromatography（HPLC）, and 1-PP and 1-MM were characterized by circular dichroism. Interestingly, it was found that 1-PP/MM could be completely isomerized to 1-PM upon heating, and the detailed thermodynamics and kinetics of the isomerization process were systematically investigated. 1-PM exhibited deep-red luminescence with emission maximum at 723 nm and fluorescence quantum yield as high as 32.95%. Consequently, we can showcase the lasing application of 1-PM by doping with epoxy resin to assemble a bottle microlaser spontaneously, which the lasing wavelength is 796.6 nm at a threshold of 0.8 m J cm-2. We believe that our studies, including the facile synthesis methodology, detailed isomerization studies, and lasing application, will shed some light on the design and synthesis of novel carbohelical systems with more functions.

关键词： double carbohelicene optical resolution organic laser isomerization X-ray diffraction

100 TeV diffuse γ-rays observation by YangBaJing Hybrid Array

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Radiation Detection Technology and Methods 2020年第3期4卷 392-398页

作者： Jian-Cheng He Yu-Hua Yao Zhen Wang Tian-Lu Chen Dan-Zeng-Luo-Bu Cun-Feng Feng Youliang Feng Qi Gao Yi-Qin Guo Ying-Ying Guo Hong-Bo Hu Xing-Tao Huang Cheng Liu Mao-Yuan Liu Yi-Bin Pan Bing-Qiang Qiao Guang-Guang Xin Xue-Yao Zhang Yi Zhang shi-ping zhao Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of Sciences(CAS)Beijing 100049China University of Chinese Academy of Sciences(UCAS) Beijing 100049China College of Physics Sichuan UniversityChengdu 610064China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 200240China Physics Department of Science School Tibet UniversityLhasa 850000China Institute of Frontier and Interdisciplinary Science Shandong UniversityJinan 250100China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences(CAS)Nanjing 210008China Department of Physics University of Wisconsin-Madison1150 University ave MadisonMadisonWI 53706USA School of Physics and Technology Wuhan UniversityWuhan 430072China

Purpose Cosmic rays up to PeV energy are believed to be generated in our galaxy.γ-rays at 100TeV energies are important probe to identify ***,γ-rays contain additional information on the propagation of the galactic cosmic *** Diffuseγ-rays originating from the Galactic plane from 20 to 200 TeV region are studied with early 160-day data collected by YangBaJing Hybrid Array(YBJ-HA),which is a hybrid array and consists of scintillation detectors and underground muon ***-distance equi-zenith angle and time-swapping methods are used to analyze the number ofγ-rays *** and conclusion Because of no significant observation onγ-ray emission,Helene's method is adopted to derive the 90%confidence level upper limits on the flux of diffuse galacticγ-*** the limit to the ratio of the flux ofγ-rays to CRs is obtained at the order of 10^(-4),which is the current best result at these energies.

关键词： Cosmic rays Diffuse y-rays YBJ-HA EAS

丹皮酚对急性心肌梗死模型大鼠心肌病理改变及TGF-β_1,CollagenⅢ表达的影响

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中国实验方剂学杂志 2015年第24期21卷 98-103页

作者：时召平曹凯赵静怡徐倩周晓慧河北省中药研究与开发重点实验室河北承德067000 承德医学院河北承德067000

目的:探讨丹皮酚(paeonol,Pae)对急性心肌梗死模型大鼠心肌病理改变及转化生长因子-β_1(TGF-β_1),胶原蛋白Ⅲ(CollagenⅢ)表达的影响。方法:SPF级雄性SD大鼠,采用左冠状前降支(LAD)结扎法制作在体大鼠急性心肌梗死模型,记录结扎前及... 详细信息

目的:探讨丹皮酚(paeonol,Pae)对急性心肌梗死模型大鼠心肌病理改变及转化生长因子-β_1(TGF-β_1),胶原蛋白Ⅲ(CollagenⅢ)表达的影响。方法:SPF级雄性SD大鼠,采用左冠状前降支(LAD)结扎法制作在体大鼠急性心肌梗死模型,记录结扎前及结扎后10,20,40,60,120 min,24 h心电图变化,测量各个时点ST段的偏移幅度并进行统计学分析,将造模成功后的大鼠随机分为模型组、丹皮酚低、中、高剂量组、卡托普利组;另有只穿线不结扎的假手术组,共6组,丹皮酚低、中、高剂量组分别给予ip 8.0,12.0,16.0 mg·kg^(-1)剂量的丹皮酚注射液,假手术组与模型组每天ip等体积生理盐水,卡托普利组用蒸馏水稀释其片剂碾成的药粉,给予ig 10.0 mg·kg^(-1),所有干预均1次/d;28 d后取材,HE染色观察心肌组织病理生理学改变情况,采用免疫组织化学法检测左室梗死区TGF-β_1和CollagenⅢ蛋白的表达。结果:HE染色结果显示:与假手术组比较,模型组大鼠左室病理生理学改变显著,梗死灶边缘部分心肌细胞发生肥大、伸长,左心室壁部分心肌凝固性坏死,凋亡细胞胞核固缩、胞质伊红深染,另有部分组织发生疏松水肿,与模型组比较,各治疗组大鼠心肌细胞病理改变均不同程度减轻;免疫组织化学染色结果显示:模型组与假手术组比较,TGF-β_1及collagenⅢ蛋白的表达明显增多(P<0.01);治疗组各组及卡托普利组与模型组比较,TGF-β_1及collagenⅢ蛋白表达均降低(P<0.01,P<0.05)。结论:丹皮酚可降低心肌梗死大鼠心肌的病变程度,改善心室重构及心功能,其作用机制可能是通过降低心肌组织中TGF-β_1及collagenⅢ的表达来实现的。

关键词：丹皮酚心肌梗死转化生长因子-β1 胶原蛋白Ⅲ

Insights from untargeted metabolomics: revealing potential marker compounds into the maturation of fermented chili

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Food Science and Human Wellness 2025年

作者： shiyu Liu Mingyuan Yang Jianhua zhao Meijuan Lei Jinlin Han Min Xu ping Liu Jie Tang Hongbin Lin School of Food and Bio-engineering， Xihua University China Agricultural University-Sichuan Advanced Agricultural & Industrial Institute Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing Food Microbiology Key Laboratory of Sichuan Province

Chili fermentation is one of the most important processes in the production of Pixian Douban (PXDB)， which determines the flavor and product quality of PXDB. However， the maturity of fermented chili mainly depends on empirical judgment， which can not satisfy the need for standardized production of PXDB. Therefore， this study aimed to investigate volatile and non-volatile substances during the maturation process and to find markers related to the maturity of fermented chili. GC×GC-MS combined with multivariate statistical analysis revealed that 2-methoxy-3-isobutyl pyrazine， linalool， 3-(methylthio)propionaldehyde， myrcene， and decanal (ROAV ≥ 1， VIP > 1， P < 0.05) were regarded as potentially active aromatic markers for differentiating fermentation time. Additionally， UPLC-QTOF-MS combined with multivariate statistical analysis resulted that 14 compounds can serve as differentiated non-volatile compounds. The correlation of maturity-related physico-chemical indicators with volatile and non-volatile compounds revealed that three volatile compounds (2-methoxy-3-isobutylpyrazine， linalool， and decanal) along with fructose and adenosine could serve as markers for evaluating the maturity of chili. This study is expected to establish a standard for the determination of maturity the fermented chili and lay the foundation for intelligent production of PXDB.

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Effects of systemic domestic recombinant human erythropoietin on HIF-1α expression in the retina in a rabbit model of acute high intraocular pressure

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Journal of Pharmaceutical Analysis 2009年第2期21卷 120-123页

作者： Yan-ping Song1,2,Jian-ming Wang3,Mei Zhang1,Na Hui3,shi-ping zhao3,Kai Hu21. Department of Hematology,the First Affiliated Hospital,Medical School of Xi’an Jiaotong University,Xi’an 710061 2. Department of Hematology,Xi’an Central Hospital,Xi’an 710003 3. Department of Ophthalmology,the Second Affiliated Hospital,Medical School of Xi’an Jiaotong University,Xi’an 710004,China. Department of Hematology First Affiliated Hospital Medical School of Xi'an Jiaotong University Xi'an 710061 China Department of Hematology Xi'an Central Hospital Xi'an 710003 China Department of Ophthalmology Second Affiliated Hospital Medical School of Xi'an Jiaotong University Xi'an 710004 China

Objective To observe the expression of hypoxia inducible factor-1α (HIF-1α) in the retina of rabbits with acute high intraocular pressure and to investigate the mechanism of systemic domestic recombinant human erythropoietin (rhEPO) protecting the retina from ischemia-reperfusion injury. Methods First,control group and model group were established in rabbit eyes. The acute high intraocular pressure model was established by saline perfusion into anterior chamber,and then hypodermic injection of domestic rhEPO was made. HIF-1α protein in the retina was observed by immunohistochemical staining method on days 1,3,7 and 14 after retinal ischemia-reperfusion,respectively. Results No cells with HIF-1α positive expression were observed in the retina of the control group. Cells with HIF-1α positive expression in the model group outnumbered those in the control group (P<0.01). The resemblance pattern occurred in EPO group but its degree was slightly greater than that in the model group from day 3 after ischemia-reperfusion (P<0.05). Conclusion Domestic rhEPO can down-regulate the expression of HIF-1α in the retina with acute high intraocular pressure,which may be one of the mechanisms that rhEPO protects the retina from ischemia-reperfusion injury.

关键词： recombinant human erythropoietin retina ischemia-reperfusion injury hypoxia inducible factor-1α

丹皮酚联合三七总皂苷对AngⅡ诱导的心脏成纤维细胞增殖及TGF-β/Smads信号通路的影响

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中成药 2016年第4期38卷 729-735页

作者：孙红丹聂丹周晓慧时召平承德医学院河北承德067000

目的探讨丹皮酚联合三七总皂苷应用对血管紧张素Ⅱ(angiotensinⅡ,AngⅡ)诱导新生大鼠的心脏成纤维细胞(cardiac fibroblasts,CFs)增殖及TGF-β/Smads信号通路的影响。方法采用胰酶消化法分离培养的CFs随机分为6组:正常对照组,模型组,... 详细信息

目的探讨丹皮酚联合三七总皂苷应用对血管紧张素Ⅱ(angiotensinⅡ,AngⅡ)诱导新生大鼠的心脏成纤维细胞(cardiac fibroblasts,CFs)增殖及TGF-β/Smads信号通路的影响。方法采用胰酶消化法分离培养的CFs随机分为6组:正常对照组,模型组,三七总皂苷组,丹皮酚组,丹皮酚与三七总皂苷联合用药大、小剂量组。采用MTT比色法测定各组培养液中CFs增殖情况,免疫细胞化学法检测α-平滑肌肌动蛋白(α-SMA)的蛋白表达水平,RTPCR法检测转化生长因子-β1(transforming growth factor-β1,Tgfb1)的mRNA表达水平,Western blot法检测TGF-β1、磷酸化的Smad2/3(p-Smad2/3)的蛋白表达水平。结果与正常对照组比较,模型组大鼠CFs增殖明显增高,Tgfb1的mRNA表达显著增加,α-SMA及TGF-β1、p-Smad2/3的蛋白表达显著增加;与模型组比较,丹皮酚组、三七总皂苷组、联合用药的大剂量和小剂量组均可抑制由AngⅡ诱导的CFs的增殖,Tgfb1的mRNA表达显著减少,α-SMA及TGF-β1、p-Smad2/3的蛋白表达显著减少;与丹皮酚组、三七总皂苷组比较,联合用药大、小剂量组在抑制CFs增殖的作用上显著增强,抑制Tgfb1的mRNA表达效果显著增强,抑制α-SMA及TGF-β1、p-Smad2/3的蛋白表达效果显著增强;与联合用药小剂量组比较,联合用药大剂量组对以上指标的抑制效果更佳,显示一定的剂量依赖性。结论丹皮酚与三七总皂苷联合应用对抑制CFs增殖,呈现明显的协同作用。其作用机制与抑制TGF-β/Smads信号通路的传导有关。

关键词：丹皮酚三七总皂苷联合用药心脏成纤维细胞 α-平滑肌肌动蛋白(α-SMA) TGF-β1 p-Smad2/3

Understanding the local structure and thermophysical behavior of Mg-La liquid alloys via machine learning potential

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 439-449页

作者： Jia zhao Taixi Feng Guimin Lu National Engineering Research Center for Integrated Utilization of Salt Lake Resource East China University of Science and TechnologyShanghai 200237China Joint International Laboratory for Potassium and Lithium Strategic Resources East China University of Science and TechnologyShanghai 200237China

The local structure and thermophysical behavior of Mg-La liquid alloys were in-depth understood using deep potential molecular dynamic(DPMD) simulation driven via machine learning to promote the development of Mg-La alloys. The robustness of the trained deep potential(DP) model was thoroughly evaluated through several aspects, including root-mean-square errors(RMSEs), energy and force data, and structural information comparison results;the results indicate the carefully trained DP model is reliable. The component and temperature dependence of the local structure in the Mg-La liquid alloy was analyzed. The effect of Mg content in the system on the first coordination shell of the atomic pairs is the same as that of temperature. The pre-peak demonstrated in the structure factor indicates the presence of a medium-range ordered structure in the Mg-La liquid alloy, which is particularly pronounced in the 80at% Mg system and disappears at elevated temperatures. The density, self-diffusion coefficient, and shear viscosity for the Mg-La liquid alloy were predicted via DPMD simulation, the evolution patterns with Mg content and temperature were subsequently discussed, and a database was established accordingly. Finally, the mixing enthalpy and elemental activity of the Mg-La liquid alloy at 1200 K were reliably evaluated,which provides new guidance for related studies.

关键词： magnesium-lanthanum liquid alloys local structure macroscopic properties thermodynamic behavior deep potential mo-lecular dynamic simulation