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An input-output model for energy accounting and analysis of industrial production processes： a case study of an integrated steel plant

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Journal of Iron and Steel Research International 2018年第5期25卷 524-538页

作者： xiao-jun Liu Sheng-ming Liao zheng-hua Rao Gang Liu School of Energy Science and Engineering Central South University Changsha 410083 Hunan China

To promote sustainability, it has become increasingly vital to properly account material and energy flows in industrial production processes. Therefore, a generic process-level input-output （IO） model was developed to provide an integrated energy （material） accounting and analysis approach for industrial production processes. By extending the existing processlevel IO models, the production, usage, export and loss of by-products were explicitly considered in the proposed IO model. Moreover, the by-products allocation procedures were incorporated into the proposed IO model to reflect individual contributions of products to energy consumption. Finally, the proposed model enabled calculating embodied energy of main products and total energy consumption under hierarchical accounting scope. Plant managers, energy management consultants, governmental officials and academic researchers could use this input-output model to account material and energy flows, thus calculating energy consumption indicators of a production process with their specific system boundary requirements. The accounting results could be further used for energy labeling, identifying bottlenecks of production activities, evaluating industrial symbiosis effects, improving materials and energy utilization efficiency, etc. The model could also be used as a planning tool to determine the effect that a particular change of technology and supply chains may have on the industrial production processes. The proposed model was tested and applied in a real integrated steel mill, which also provided the reference results for related researches. At last, some concepts, computational issues and limi- tations of the proposed model were discussed.

关键词： Input-output model · Energy consumption · Energy accounting · Embodied energy · Industrial production process · Integrated steelmaking process

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洞庭湖区湿地资源及生态系统现状的研究

湖南城市学院学报（自然科学版） 2007年第4期16卷 1-5页

作者：赵运林肖正军戴梅斌易合成湖南城市学院湖南益阳413000 湖南省南洞庭湖自然保护区湖南益阳413000

洞庭湖区湿地作为我国最大的淡水湖泊湿地,自然资源极其丰富,利用潜力巨大.概述了洞庭湖区湿地资源基本情况、生态系统分类及评价,并对湖区湿地生态退化进行了分析,认为湿地存在泥沙淤积严重、水质污染加剧和生物多样性降低等生态问题,... 详细信息

洞庭湖区湿地作为我国最大的淡水湖泊湿地,自然资源极其丰富,利用潜力巨大.概述了洞庭湖区湿地资源基本情况、生态系统分类及评价,并对湖区湿地生态退化进行了分析,认为湿地存在泥沙淤积严重、水质污染加剧和生物多样性降低等生态问题,最后就湖区湿地生态系统的保护及可持续发展提出几点建议.

关键词：洞庭湖区湿地资源生态系统

Experimental study on the origin of lobe-cleft structures in a sand storm

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Acta Mechanica Sinica 2021年第1期37卷 47-52,I0001页

作者： Lin-Sen Zhang Jian-jun Tao Guo-Hua Wang xiao-Jing zheng CAPT-HEDPS SKLTCSDepartment of Mechanics and Engineering ScienceCollege of EngineeringPeking UniversityBeijing100871China Center for Particle-Laden Turbulence Lanzhou UniversityLanzhou730000China

Lobes and clefts are characteristic structures at the front of sand *** this paper,their original formation mechanism and geometric features are studied experimentally and theoretically.A rotatable lock-exchange tank is utilized to avoid the strong local disturbances existing in the conventional horizontal apparatus,and the original lobe size is selected as the dominant spanwise wavelength by a statistical method instead of the mean lobe size used in the *** is shown that at the initial formation stage,the measured lobe sizes for different tank geometries and density differences(or Atwood numbers)have a 1/3 scaling law with the Grashof number(Gr)as predicted by a Rayleigh-Taylor(RT)model,especially at moderate Gr range,and substantially depend on the diffusion effect represented by the Schmidt ***,using turbulent Schmidt number and eddy viscosity for atmosphere in the RT model predicts large scale dominant lobes,whose sizes agree qualitatively with those observed in a real sand storm,revealing that the underlying control mechanism for these lobe and cleft structures is intrinsically related to the RT instability.

关键词： Gravity current Lobe-cleft formation Rayleigh-Taylor instability Sand storm Diffusion effect

Evolution analysis of a UAV real-time operating system from a network perspective

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Chinese Journal of Aeronautics 2019年第1期32卷 176-185页

作者： zheng zheng Guanping xiao School of Automation Science and Electrical Engineering Beihang University

With the flourishing development of Unmanned Aerial Vehicles(UAVs), the mission tasks of UAVs have become more and more complex. Consequently, a Real-Time Operating System(RTOS) that provides operating environments for various mission services on these UAVs has become crucial, which leads to the necessity of having a deep understanding of an RTOS. In this paper, an empirical study is conducted on FreeRTOS, a commonly used RTOS for UAVs, from a complex network perspective. A total of 85 releases of FreeRTOS, from V2.4.2 to V10.0.0, are modeled as directed networks, in which the nodes represent functions and the edges denote function calls. It is found that the size of the FreeRTOS network has grown almost linearly with the evolution of the versions, while its main core has evolved steadily. In addition, a k-core analysis-based metric is proposed to identify major functionality changes of FreeRTOS during its *** result shows that the identified versions are consistent with the version change logs. Finally,it is found that the clustering coefficient of the Linux OS scheduler is larger than that of the FreeRTOS scheduler. In conclusion, the empirical results provide useful guidance for developers and users of UAV RTOSs.

关键词： Complex networks Evolution FreeRTOS k-core decomposition Real-time operating system

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烟酸对博莱霉素肺纤维化大鼠的干预影响

中国医师杂志 2006年第11期8卷 1494-1496页

作者：王利平肖振军周芳何碧秀中南大学湘雅医院老干科湖南长沙410008

目的研究烟酸对博莱霉素肺纤维化大鼠模型的干预影响以及可能的机制。方法54只清洁级SD大鼠随机分为3组:烟酸组(N组),模型组(B组),正常组(CN组)。烟酸组和模型组大鼠实验当天气管内滴入博莱霉素5 mg/kg,正常组气管内滴入等量生理盐水。... 详细信息

目的研究烟酸对博莱霉素肺纤维化大鼠模型的干预影响以及可能的机制。方法54只清洁级SD大鼠随机分为3组:烟酸组(N组),模型组(B组),正常组(CN组)。烟酸组和模型组大鼠实验当天气管内滴入博莱霉素5 mg/kg,正常组气管内滴入等量生理盐水。在气管内滴药后第7,14,28天每组各处死6只动物,取肺组织称重计算肺系数,行HE、M asson染色并做肺泡炎、肺纤维化评分,比色法测羟脯氨酸含量,免疫组化法测转化生长因子-β1(TGF-β1),α-平滑肌肌动蛋白(α-SMA)水平表达。结果模型组TGF-β1,α-SMA蛋白表达明显高于正常组,烟酸组则低于模型组。模型组各时间点肺泡炎评分均高于同一时间点正常组和烟酸组;实验第14,28天肺纤维化程度,肺系数,羟脯氨酸含量也高于同期正常组及烟酸组。结论烟酸可以抑制博莱霉素肺纤维化的形成,可能与部分抑制肺组织TGF-β1,α-SMA蛋白表达有关。

关键词：尼克酸/药理学肺纤维化博来霉素/副作用

Array based HV/VH tree: an effective data structure for layout representation

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Journal of Zhejiang University-Science C(Computers and Electronics) 2012年第3期13卷 232-237页

作者： Jie REN Wei-wei PAN Yong-jun zheng zheng SHI xiao-lang YAN Institute of VLSI Design Zhejiang UniversityHangzhou 310027China

We present a new data structure for the representation of an integrated circuit layout. It is a modified HV/VH tree using arrays as the primary container in bisector lists and leaf nodes. By grouping and sorting objects within these arrays together with a customized binary search algorithm, our new data structure provides excellent performance in both memory usage and region query speed. Experimental results show that in comparison with the original HV/VH tree, which has been regarded as the best layout data structure to date, the new data structure uses much less memory and can become 30% faster on region query.

关键词： Very large scale integration (VLSI) Layout representation HV/VH trees Region query

巨刺电针联合超前镇痛治疗初次单膝人工关节置换后疼痛

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中国组织工程研究 2025年第21期29卷 4529-4536页

作者：许明岚胡小雪沈军向峥张成波肖涟波上海中医药大学附属光华医院麻醉科上海市200052 上海中医药大学附属光华医院关节外科上海市200052 上海市中医药研究院中西医结合关节炎研究所上海市200052

背景:随着人工生物材料和手术技术的不断更新进步,人工膝关节置换已成为改善膝骨关节炎患者生活质量的首选方式。但是人工膝关节置换后疼痛剧烈,目前尚无较好的治疗措施。电针治疗是缓解疼痛的低成本选择,结合超前镇痛具有广泛应用前景... 详细信息

背景:随着人工生物材料和手术技术的不断更新进步,人工膝关节置换已成为改善膝骨关节炎患者生活质量的首选方式。但是人工膝关节置换后疼痛剧烈,目前尚无较好的治疗措施。电针治疗是缓解疼痛的低成本选择,结合超前镇痛具有广泛应用前景。目的:观察巨刺电针联合超前镇痛对膝骨关节炎患者初次行单侧人工膝关节置换后镇痛效果的影响。方法:采用随机对照设计,选择上海市光华中西医结合医院初次行单膝人工关节置换患者120例为研究对象,采用统计软件SPSS 25随机分为3组:超前电针组、术后电针组和假电针组,每组40例。超前电针组在术前1 d、麻醉诱导前30 min、术后1-3 d进行巨刺法电针治疗;术后电针组在术后1-3 d进行相同取穴和参数的治疗,术前1 d、麻醉诱导前30 min行假电针治疗;假电针组取相同穴位参数的5次假电针治疗。比较3组术后患者数字疼痛评分较术前改善情况、术中瑞芬太尼和丙泊酚使用量、患者术后首次使用静脉自控镇痛的时间、术后恶心呕吐例数、术后术侧大腿周径增加率和电针实施盲法成功率。结果与结论:(1)与超前电针组比较,术后第4天术后电针组和假电针组静息数字疼痛评分差值明显降低,术后第7天假电针组静息数字疼痛评分差值明显降低(P0.05);(3)与超前电针组比较,术后电针组和假电针组术中瑞芬太尼用量明显增加(P0.05);(8)人工膝关节假体具有良好的生物相容性。结果表明:巨刺电针结合超前镇痛可缓解术后急性疼痛,减少术中麻醉药量,延长术后补救镇痛时间,减轻术后不良反应,降低术后大腿周径增加率。

关键词：超前镇痛巨刺电针人工膝关节置换骨关节炎术后急性疼痛

Shear-thinning Catechol-modified Chitosan Hydrogel Loaded with Silver Nanoparticles for Endoscopic Submucosal Dissection

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Chinese Journal of Polymer Science 2024年第8期42卷 1147-1155页

作者： Wen-jun Feng Yan-He Wu xiao-Yang Liu zheng-Ke Wang MOE Key Laboratory of Macromolecular Synthesis and Functionalization Department of Polymer Science and EngineeringZhejiang UniversityHangzhou 310058China

Shear-thinning hydrogels have emerged for endoscopic submucosal dissection,while wound intervention after surgery has rarely been ***,a catechol-modified chitosa n hydrogel with shear-thinning property was developed for simultaneously facilitating endoscopic submucosal dissection and postoperative wound *** from the shear-thinning and self-healing characteristics,the asprepared hydrogel showed easily endoscopic *** also performed very well as submucosal cushion,which could remain above 70%after injection for 120 min in ex vivo porcine large intestine *** fact,the cushion height of normal saline dramatically decreased to 46%of the initial height at 30 *** nanoparticles encapsulated into the network endowed the hydrogel with almost reached 100%antibacterial effect against *** and *** hemolysis ratio of the hydrogel was calculated to be as low as 0.8%.Combined with good hemocompatibility and cytocompatibility,the as-prepared hydrogel displayed much higher in vivo wound closu re and healing efficacy than normal *** results demonstrated the superiority of the shear-thinning chitosan hydrogel in facilitating clinical endoscopic submucosal dissection surgery.

关键词： Shear-thinning hydrogel Endoscopic mucosal dissection Wound healing Catechol-modified chitosan Silver nanoparticles

Deciphering the molecular mechanisms of Simiaowan in the treatment of hyperuricemia: in vivo and in silico approaches

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Traditional Medicine Research 2025年第2期10卷 37-54页

作者： Yong-Chang Zeng jun-Hong Wu Dan-Dan Xu Kang He Chang-Qing Liu Li-Fei Song zheng-Zhi Wu Qian-Qian Jiang Shao-Yu Liang Department of Neurology The First Affiliated Hospital of Shenzhen UniversityShenzhen 518020China Pharmaceutical Department The Affiliated TCM Hospital of Guangzhou Medical UniversityGuangzhou 510000China School of Pharmacy Guizhou University of Traditional Chinese MedicineGuiyang 550025China Guangzhou Zeli Medical Technology Co. Ltd.Guangzhou 510700China

Background:Simiaowan(SMW),a well-known traditional Chinese medicine,has been employed to treat hyperuricemia(HUA)and gout for ***,the bioactive components and underlying mechanisms have not been *** objective of this study was to identify the active components and potential mechanisms of SMW by integrating pharmacological experimentation,serum pharmacochemistry,network pharmacology and molecular ***:HUA rats modelling by high-fat/high-sugar diet and potassium oxonate/adenine oral administration were used to evaluate the pharmacodynamic effects of ***-Q-Exactive-MS/MS was employed to detect the bioactive components present in SMW-containing *** pharmacology and molecular docking were utilized to elucidate the potential targets and underlying ***:SMW effectively ameliorated HUA rats via the inhibition of uric acid(UA)production,promotion of UA excretion,improvement of lipid and glucose metabolic abnormalities,antioxidant,anti-inflammatory and anti-insulin resistance effects.A total of 73 compounds detected in SMW-containing serum were identified as potential active components,with alkaloids,flavonoids,organic acids,and terpenoids emerging as the primary active *** 203 corresponding targets were obtained as SMW anti-HUA/gout targets,which mainly participated in apoptosis,insulin resistance,TNF,PI3K-Akt,HIF-1,NF-κB,MAPK,IL-17 and TLR signaling *** docking indicated that active compounds(***,phellodendrine,quercetin,formononetin,ferulic acid)had superior binding abilities to the key targets(*** carrier family 22 member 12(URAT1),solute carrier family 22 member 6(OAT1),ATP-binding cassette sub-family G member 2(ABCG2),solute carrier family 2,facilitated glucose transporter member 9(GLUT9),xanthine dehydrogenase/oxidase(XDH),transcription factor p65(RELA),toll-like receptor 4(TLR4),prostaglandin G/H synthase 2(PTGS2),caspase-3(CASP3),insulin(INS)).Conclusion:S

关键词： hyperuricemia network pharmacology serum pharmacochemistry Simiaowan UPLC-Q-Exactive-MS/MS