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价值工程 2024年第7期43卷 22-24页

作者：杨海斌江苏高智项目管理有限公司南京210033

本文从某大型复杂钢结构工程的施工流程出发,结合项目安全性、可行性及经济性的要求,从运输费用、机械费用、拼接费用等多个角度,系统分析了该项目的投资管控方法和优化路径。本文的研究对大型钢结构项目的投资控制分析有一定的借鉴意义。

关键词：钢结构工程项目管理投资控制

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价值工程在某项目管理中的应用

价值工程 2024年第8期43卷 131-133页

作者：杨海斌江苏高智项目管理有限公司南京210033

本文在分析设计方案能满足项目功能要求的基础上,论述了项目利用BIM技术等成本控制手段,从设计方案中环形步道栏杆扶手、佛龛、墙地面等多个方面,运用方案优化、选材优化、工序优化、成本优化等多种方法实现项目管理的价值。本文的研究... 详细信息

本文在分析设计方案能满足项目功能要求的基础上,论述了项目利用BIM技术等成本控制手段,从设计方案中环形步道栏杆扶手、佛龛、墙地面等多个方面,运用方案优化、选材优化、工序优化、成本优化等多种方法实现项目管理的价值。本文的研究成果对同类项目管理价值有一定的参考意义,更好地体现项目管理在项目实施中的作用与价值。

关键词：价值工程 BIM技术项目管理

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多级速分工艺在高排放标准污水处理站的应用

中国给水排水 2024年第2期40卷 65-69页

作者：杨金明林春晓董军杨海斌杨玉军中国市政工程中南设计研究总院有限公司湖北武汉430010

昆明市某河道治理配套污水处理站设计规模为7 500 m3/d,采用初沉池—多级速分生化池—斜管沉淀池—气浮池—纤维转盘滤池组合处理工艺。经过几年运行,污水处理站出水各项指标均优于昆明市《城镇污水处理厂主要水污染物排放限值》(DB 530... 详细信息

昆明市某河道治理配套污水处理站设计规模为7 500 m3/d,采用初沉池—多级速分生化池—斜管沉淀池—气浮池—纤维转盘滤池组合处理工艺。经过几年运行,污水处理站出水各项指标均优于昆明市《城镇污水处理厂主要水污染物排放限值》(DB 5301/T 43—2020)B级标准,单位水量处理经营成本为1.63元/m3。采用“好氧-缺氧-好氧-缺氧-好氧”五级速分生化技术,占地面积小、启动快、处理效果好、污泥产量低、操作方便,可应用于小型高排放标准污水处理工程。

关键词：速分生化工艺高排放标准污水处理站气浮

Oral administration of geranylgeranylacetone plus local somatothermal stimulation: A simple, effective, safe and operable preconditioning combination for conferring tolerance against ischemia-reperfusion injury in rat livers

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World Journal of Gastroenterology 2005年第36期11卷 5725-5731页

作者： Ning Fan Guang-Shun yang Jun-Hua Lu Ning yang hai-bin Zhang Department of Laparoscopy Affiliated Eastern Hospital of Hepatobiliary Surgery Second Military Medical University Shanghai 200438 China

AIM： To explore a simple, effective, safe and operable pretreatment for conferring tolerance against ischemia- reperfusion （I-R） injury in rat livers. METHODS： Forty-five rats were divided into five groups （each group n = 9）. Group C： control group; group G： geranylgeranylacetone （GGA） was administered without heat stress; group S： local heat stress alone; group WG： GGA plus whole-body heat stress; group SG： GGA administration plus local heat stress. After completion of the I-R procedure, the ischemic-reperfused liver lobes in five groups were resected and tested for heat shock protein （HSP70） by RT-PCR, Western blotting analysis and immunohistochemical staining. The blood samples were collected for ALT and AST measurement at the end of occlusion of blood supply, 30 min after reperfusion, 24, 48, 72 h after surgery from the inferior vena cava. Survival was monitored for 1 wk. RESULTS： The production of HSP70 after I-R injury increased, the liver enzyme levels after reperfusion decreased rapidly, and the survival rates increased in groups C-SG. CONCLUSION： The combination of GGA plus local somatothermal stimulation is a simple, effective, safe and operable pretreatment to induce HSP70 in patients with liver tumor and cirrhosis before hepatectomy and in donors before harvesting graft for liver transplantation.2005 The WJG Press and Elsevier Inc. All rights reserved.

关键词： Ischemia-reperfusion injury Heat shock protein Geranylgeranylacetone, Local somatothermal stimulation

镁粉和铝粉对CO_(2)相变激发药剂性能的影响

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工程爆破 2024年第2期30卷 88-97页

作者：杜明燃胡赏赏王尹军杨海斌曹稳王任松安徽理工大学化工与爆破学院安徽淮南232001 宏大爆破工程集团有限责任公司广州510623 矿冶科技集团有限公司北京100160 中国矿业大学(北京)力学与建筑工程学院北京100083 河北云山化工集团有限公司河北邢台054011

为了提高CO_(2)相变激发药剂的放热量,在激发药剂中分别添加2%和4%质量分数的镁粉或铝粉,通过热重法(TG)、引燃试验、耐温试验和反应热试验,研究其热分解特性、安全性、耐温性和反应热的变化。结果表明:镁粉或铝粉对激发药剂的热分解特... 详细信息

为了提高CO_(2)相变激发药剂的放热量,在激发药剂中分别添加2%和4%质量分数的镁粉或铝粉,通过热重法(TG)、引燃试验、耐温试验和反应热试验,研究其热分解特性、安全性、耐温性和反应热的变化。结果表明:镁粉或铝粉对激发药剂的热分解特性无明显影响,加入2%和4%镁粉的激发药剂表观活化能分别增加16.68 kJ/mol和43.96 kJ/mol,反应热分别提高5.1%和10%;而同样比例的铝粉,表观活化能分别增加28.89 kJ/mol和55.21 kJ/mol,反应热分别提高6.6%和12.9%;加入少量镁粉或铝粉的激发药剂无爆炸危险,安全性良好;加入镁粉或铝粉的激发药剂在70℃保温48 h后,整体并未发生明显变化,温度指数Ts在90℃左右,表明其耐温性能良好。

关键词： CO_(2)膨胀爆破激发药剂反应热

Characterization of Cu-Zn Alloy Nanocrystalline Powders Prepared by Wire Electrical Explosion

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Chinese Physics Letters 2000年第2期17卷 145-147页

作者： WANG Qun yang hai-bin GUO Wei-Li ZOU Guang-Tian National Laboratory of Superhard Materials Jilin UniversityChangchun 130023

Nanocrystalline powders of Cu-Zn alloy in size ranging from 10 to 140nm was prepared from α-Cu-Zn alloy wire containing 39.8at.% Zn by an electrical explosion method. The particles are identified from x-ray diffraction as a mixture of the α,β,γ, and ε phases of Cu-Zn alloy. Most of the particles are hexagonal in shape, with only a small part being spherical and cubic. The composition of Zn in the explosion products varied from 6.9 to 45.2 at.% in different particles as determined by energy dispersive x-ray spectrometer. A possible mechanism for the formation of the alloy nanocrystalline powders is proposed, in which a redistribution process occurred caused by strong collision and diffusion between the two kinds of atoms during the powder formation.

关键词： alloy powders hexagonal

Raman Studies on Structure Transitions of Layered Ferroelectrics Ba_(2+x)Bi_(4-x)Ti_(5-x)Nb_(x)O_(18)

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Chinese Physics Letters 1998年第6期15卷 438-440页

作者： HAN Jie ZOU Guang-tian CUI Qi-liang yang hai-bin CUI Tian National Laboratory of Superhard Materials Jilin UniversityChangchun 130023

Raman spectra of layered ferroelectrics Ba_(2+x)Bi_(4-x)Ti_(5-x)Nb_(x)O_(18)(0≤x≤2)at room temperature in the range 20-1000cm^(-1) were *** modes were assigned with the use of internal mode *** doping-induced structure phase transitions were observed at about x=0.50 and x=1.25,*** spectra variations were analyzed according to the selection rules of BO_(6) octahedra in various *** samples were synthesized by solid state reaction method.

关键词： method Transition

Proppant transport in rough fracture networks using supercritical CO_(2)

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Petroleum Science 2024年第3期21卷 1852-1864页

作者： Yong Zheng Meng-Meng Zhou Ergun Kuru bin Wang Jun Ni bing yang Ke Hu hai Huang hai-Zhu Wang School of Petroleum Engineering Xi'an Shiyou UniversityXian710065ShaanxiChina Shaanxi Key Laboratory of Carbon Dioxide Sequestration and Enhanced Oil Recovery Xi'an710075ShaanxiChina State Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing2249China School of Mining and Petroleum Engineering University of AlbertaEdmontonTG2W2AlbertaCanad Shaanxi Yanchang Petroleum(Group)Co. Ltd.Xi'an710075ShaanxiChina

Proppant transport within fractures is one of the most critical tasks in oil,gas and geothermal reservoir stimulation,as it largely determines the ultimate performance of the operating *** transport in rough fracture networks is still a relatively new area of research and the associated transport mechanisms are still *** this study,representative parameters of rough fracture surfaces formed by supercritical CO_(2) fracturing were used to generate a rough fracture network model based on a spectral synthesis *** fluid dynamics(CFD)coupled with the discrete element method(DEM)was used to study proppant transport in this rough fracture *** reveal the turning transport mechanism of proppants into branching fractures at the intersections of rough fracture networks,a comparison was made with the behavior within smooth fracture networks,and the effect of key pumping parameters on the proppant placement in a secondary fracture was *** results show that the transport behavior of proppant in rough fracture networks is very different from that of the one in the smooth fracture *** turning transport mechanisms of proppant into secondary fractures in rough fracture networks are gravity-driven sliding,high velocity fluid suspension,and fracture structure *** the same injection conditions,supercritical CO_(2)with high flow Reynolds number still has a weaker ability to transport proppant into secondary fractures than *** of the supercritical CO_(2)needs to be increased beyond a certain value to have a significant effect on proppant carrying,and under the temperature and pressure conditions of this paper,it needs to be increased more than 20 times(about 0.94 m Pa s).Increasing the injection velocity and decreasing the proppant concentration facilitates the entry of proppant into the branching fractures,which in turn results in a larger stimulated reservoir *** results help to understand the pro

关键词： Reservoir stimulation CCUS Rough fracture network Supercritical CO_(2) Proppanttransport

Protein acetylation sites with complex-valued polynomial model

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Frontiers of Computer Science 2024年第3期18卷 217-226页

作者： Wenzheng BAO bin yang School of Information Engineering Xuzhou University of TechnologyXuzhou 221018China School of Information Science and Engineering Zaozhuang UniversityZaozhuang 277160China

Protein acetylation refers to a process of adding acetyl groups(CH3CO-)to lysine residues on protein *** one of the most commonly used protein post-translational modifications,lysine acetylation plays an important role in different *** our study,we developed a humanspecific method which uses a cascade classifier of complexvalued polynomial model(CVPM),combined with sequence and structural feature descriptors to solve the problem of imbalance between positive and negative *** gene expression programming and differential evolution are utilized to search the optimal CVPM *** also made a systematic and comprehensive analysis of the acetylation data and the prediction *** performances of our proposed method are 79.15%in Sp,78.17%in Sn,78.66%in ACC 78.76%in F1,and 0.5733 in MCC,which performs better than other state-of-the-art methods.

关键词： protein acetylation complex-valued polynomial model machine learning

Comprehensive Assessment of STGSA Generated Skeletal Mechanism for the Application in Flame-Wall Interaction and Flame-Flow Interaction

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Journal of Thermal Science 2024年第5期33卷 1946-1960页

作者： YU Chunkan yang bin Institute of Technical Thermodynamics Karlsruhe Institute of TechnologyKarlsruhe 76131Germany Center for Combustion Energy Tsinghua UniversityBeijing 100084China

In this study,we conduct a thorough evaluation of the STGSA-generated skeletal mechanism for C_(2)H_4/*** STGSA-reduced mechanisms are taken into account,incorporating basic combustion models such as the homogeneous reactor model,one-dimensional flat premixed flame,and non-premixed counterflow ***,these models are applied to more complex combustion systems,considering factors like flame-flow interaction and flame-wall *** considerations take into account additional physical parameters and processes such as mixing frequency and *** results indicate that the skeletal mechanism adeptly captures the behavior of these complex combustion ***,it is suggested to incorporate strain rate considerations in generating the skeletal mechanism,especially when the combustion system operates under high turbulent intensity.

关键词： Species-Targeted Global Sensitivity Analysis(STGSA) mechanism reduction Partially Stirred Reactor(PaSR) spark ignition Head-on Quenching(HoQ)