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自动编程软件在型材轧辊加工粗加工中的应用

现代制造技术与装备 2019年第5期55卷 95-96,98页

作者：黄鲁宁张刚石横特钢集团有限公司

针对型材轧辊孔型粗车对自动编程软件重要参数进行了模态化设定,其他参数变动根据加工需要设定了调整范围。该技术弥补了普通车床加工中定位不准、加工中需不断测量、进退刀需手工操作完成、余量不均匀、易发生过切出现废品、加工精度... 详细信息

针对型材轧辊孔型粗车对自动编程软件重要参数进行了模态化设定,其他参数变动根据加工需要设定了调整范围。该技术弥补了普通车床加工中定位不准、加工中需不断测量、进退刀需手工操作完成、余量不均匀、易发生过切出现废品、加工精度低以及生产效率低等问题,同时也弥补了手工编写程序工作量大、繁琐、易出现编写错误以及效率低等缺陷。

关键词：轧辊孔型自动编程模态化设定

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PN/A颗粒污泥-固相反硝化组合工艺研究

皮革制作与环保科技 2023年第12期4卷 138-140页

作者：黄鲁宁马成伟山东省临沂市生态环境局山东临沂276000 山东建业工程科技有限公司山东临沂276000

本研究为处理PN/A反应出现的硝酸盐残留,把颗粒污泥和SPD系统耦合,用来处理高氨氮废水,并基于提升脱氮效能,考察了多种填料的固相反硝化(SPD)效能。结果显示,共聚酯填料效能最佳,总氮去除率大于93%,远超过其它填料的水平。根据高通量测... 详细信息

本研究为处理PN/A反应出现的硝酸盐残留,把颗粒污泥和SPD系统耦合,用来处理高氨氮废水,并基于提升脱氮效能,考察了多种填料的固相反硝化(SPD)效能。结果显示,共聚酯填料效能最佳,总氮去除率大于93%,远超过其它填料的水平。根据高通量测序可知,溶出水平是决定菌群多样性的主要因素。反硝化菌产生了协作关系,明显提高了功能潜力。以上发现针对系统改进PN/A-SPD组合工艺,并促进其运用有较大的指导意义。

关键词： PN/A颗粒污泥 SPD系统组合工艺菌群功能

面向大学生职业倾向培养的高校图书馆阅读推广影响因素分析——基于霍兰德RIASCE理论

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图书馆界 2024年第2期 9-17,59页

作者：黄璐宁肖海清百色学院图书馆广西百色533000 桂林师范高等专科学校图书馆广西桂林541199

参与职业教育是高校图书馆服务学校人才培养的体现与拓展。文章结合霍兰德RIASCE理论,采用扎根理论方法,明确职业倾向认知、阅读行为、职业发展阅读需求和图书馆阅读推广4个面向大学生职业倾向培养的高校图书馆阅读推广影响因素及其关系... 详细信息

参与职业教育是高校图书馆服务学校人才培养的体现与拓展。文章结合霍兰德RIASCE理论,采用扎根理论方法,明确职业倾向认知、阅读行为、职业发展阅读需求和图书馆阅读推广4个面向大学生职业倾向培养的高校图书馆阅读推广影响因素及其关系,并从整合和盘活阅读资源、创设数字化阅读环境、拓宽信息整合与传播渠道、构建全周期阅读帮助服务体系、建立阅读推广协同治理机制5个方面探索面向大学生职业倾向培养的高校图书馆阅读推广策略。

关键词：大学生职业倾向高校图书馆阅读推广影响因素霍兰德RIASCE理论

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高效粗车宏程序组在多切分轧辊中的应用研究

现代制造技术与装备 2021年第3期57卷 12-13页

作者：黄鲁宁张勇田长君石横特钢集团有限公司肥城271621

详细分析中小规格圆钢、螺纹钢轧辊的粗车数控程序编写方式,对相应编写的程序优劣进行对比。同时,针对其他编程方式存在的弊端,详细介绍了新编写的宏程序优势及使用方法。该组程序能粗加工任意组、任意切分、任意余量的中小规格孔型的轧... 详细信息

详细分析中小规格圆钢、螺纹钢轧辊的粗车数控程序编写方式,对相应编写的程序优劣进行对比。同时,针对其他编程方式存在的弊端,详细介绍了新编写的宏程序优势及使用方法。该组程序能粗加工任意组、任意切分、任意余量的中小规格孔型的轧辊,程序量小,灵活性高,生产效率高,直观明了,便于操作,实用性强。

关键词：切分轧辊粗加工宏指令编程强力切削细节优化

The Amines and Phenols Existing in RFCC Gasoline Affect the Accuracy of Potentiometric Titration

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Microstructure, wear resistance, and corrosion performance of Ti35Zr28Nb alloy fabricated by powder metallurgy for orthopedic applications

甘肃省化学会成立六十周年学术报告会暨二十三届年会

作者： Xingguo Cheng~(1,2), luning huang~3, Peixun Li~3, Zhide Hu~1, Lei Cao~2 (1 Department of Chemistry, Lanzhou University, Lanzhou 730000, PR. China 2 Lanzhou lube oil R(?)D institute of Petrochina, Lanzhou 730060. P.R. China 3 Department of Material science, Lanzhou University, Lanzhou 730000, P.R. China)

This paper described that there were two or more endpoints in the curve when potentiometeric titration was used to determine the contents of mercaptan sulfur in residue fluidized catalytic cracking (RFCC) gasoline. Comparing with the one endpoint of a mixture solution of C-SH to C-SH determined under the same conditions, we found some components in RFCC gasoline affected the result of titration. A facile method washing the gasoline with 2% HCl solution was brought out to eliminate the interfering components from the RFCC gasoline. After being treated with this method, all RFCC gasoline that contained 14 to 27 ug/mL mercaptan sulfur (SRSH) met the quality specification (SRSH shall not exceed 10ug/mL. The analysis of gas chromatography mass spectrometry (GC-MS) and gas chromatography infrared spectrometer (GC-IR) verified that the interfering components were aniline, phenol and their alkyl-substituted derivatives.

关键词： RFCC gasoline mercaptan potentiometric titration GC-MS GC-IR

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Journal of Materials Science & Technology 2020年第6期41卷 191-198页

作者： Wei Xu Xin Lu Jingjing Tian Chao huang Miao Chen Yu Yan luning Wang Xuanhui Qu Cuie Wen Beijing Advanced Innovation Center for Materials Genome Engineering Institute for Advanced Materials and TechnologyUniversity of Science and Technology BeijingBeijing100083China Central Laboratory Peking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical SciencesBeijing100730China School of Engineering RMIT UniversityMelbourne3001Australia

A ternary Ti35Zr28Nb alloy was fabricated by powder metallurgy(PM)from pre-alloyed *** microstructure,hardness,corrosion behavior,and wear response of the produced alloy were investigated *** results show that nearly full dense Ti35Zr28Nb alloy(relative density is 98.1±1.2%)can be fabricated by *** microstructure was dominated with uniform *** Ti35Zr28Nb alloy displayed spontaneous passivity in a naturally aerated simulated body fluid(SBF)solution at 37±0.5°*** Ti35Zr28Nb alloy exhibited the highest corrosion resistance as compared to as-cast Ti6Al4V and pure Ti because of the formation of a protective passive film containing TiO2,Nb2O5,and ZrO2,including the highest corrosion potential(-0.22±0.01 V),the lowest corrosion current density(57.45±1.88 nA),the lowest passive potential(0.05±0.01 V)and the widest passivation range(1.29±0.09 V).Under the same wear condition,the wear rate of the Ti35Zr28Nb alloy(0.0021±0.0002 mm3/m·N)was lower than that of the CP Ti(0.0029±0.0004 mm3/m·N)and close to that of the Ti6Al4V(0.0020±0.0003 mm3/m·N).The wear mechanism of the Ti35Zr28Nb alloy was mainly dominated by abrasive wear,accompanied by adhesive *** highest corrosion resistance together with the adequate wear resistance makes the PM-fabricated Ti35Zr28Nb alloy an attractive candidate for orthopedic implant materials.

关键词： Ti35Zr28Nb Powder metallurgy Microstructure Wear behavior Corrosion resistance

Fluid identification and tight oil layer classification for the southwestern Mahu Sag,Junggar Basin using NMR logging-based spectrum decomposition

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Energy Geoscience 2024年第2期5卷 62-69页

作者： Wenbiao huang Yibing Guo Jun Qin Zhongchen Ba Zongbin Zhang luning Bai Heng Li School of Geosciences China University of Petroleum(East China)QingdaoShandong266580China PetroChina Xinjiang Oilfield Company KaramayXinjiang834000China

The intricate distribution of oil and water in tight rocks makes pinpointing oil layers *** conventional identification methods offer potential solutions,their limited accuracy precludes them from being effective in their applications to unconventional *** study employed nuclear magnetic resonance(NMR)spectrum decomposition to dissect the NMR T_(2)spectrum into multiple ***,it employed laboratory NMR experiments to ascertain the fluid properties of these sub-spectra,aiming to enhance identification *** findings indicate that fluids of distinct properties overlap in the T_(2)spectra,with bound water,movable water,bound oil,and movable oil appearing sequentially from the low-value zone to the high-value ***,an oil layer classification scheme was proposed,which considers the physical properties of reservoirs,oil-bearing capacity,and the characteristics of both mobility and the oil-water two-phase *** applied to tight oil layer identification,the scheme's outcomes align closely with actual test results.A horizontal well,deployed based on these findings,has produced high-yield industrial oil flow,underscoring the precision and dependability of this new approach.

关键词： Nuclear magnetic resonance Fluid identification Oil layer identification NMR T_(2)spectrum decomposition Normal distribution simulation

Genesis and microscopic characteristics of tight reservoirs in the Fengcheng Formation, at the southern margin of the Mahu Sag

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Energy Geoscience 2023年第3期4卷 127-138页

作者： luning Bai Wenbiao huang Jun Qin Zongbin Zhang Zhongchen Ba Zhenhua Bai Yibing Guo Heng Li School of Geosciences China University of Petroleum(East China)QingdaoShandong266580China Research Institute of Exploration and Development PetroChina Xinjiang Oilfield CompanyKaramayXinjiang834000China Research Institute of Exploration and Development PetroChina Daqing Oilfield CompanyDaqingHeilongjiang163712China

The tight reservoirs of the Fengcheng Formation at the southern margin of the Mahu Sag have strong heterogeneity due to the diversity in their pore types, sizes, and structures. The microscopic characteristics of tight reservoirs and the mechanisms that generate them are of significance in identifying the distribution of high-quality reservoirs and in improving the prediction accuracy of sweet spots in tight oil reservoirs. In this paper, high-pressure mercury intrusion (HPMI) and nuclear magnetic resonance (NMR) experiments were carried out on samples from the tight reservoirs in the study area. These experimental results were combined with cluster analysis, fractal theory, and microscopic observations to qualitatively and quantitatively evaluate pore types, sizes, and structures. A classification scheme was established that divides the reservoir into four types, based on the microstructure characteristics of samples, and the genetic mechanisms that aided the development of reservoir microstructure were analyzed. The results show that the lower limit for the tight reservoir in the Fengcheng Formation is Φ of 3.5% and K of 0.03 mD. The pore throat size and distribution span gradually decrease from Type I, through Type II and Type III reservoirs to non-reservoirs, and the pore type also evolves from dominantly intergranular pores to intercrystalline pores. The structural trend shows a decrease in the ball-stick pore-throat system and an increase in the branch-like pore-throat system. The dual effects of sedimentation and diagenesis shape the microscopic characteristics of pores and throats. The sorting, roundness, and particle size of the original sediments determine the original physical properties of the reservoir. The diagenetic environment of ‘two alkalinity stages and one acidity stage’ influenced the evolution of pore type and size. Although the cementation of authigenic minerals in the early alkaline environment adversely affected reservoir properties, it also

关键词： Tight reservoir Pore-thr 0at structure Reservoir classification Diagenesis Fengcheng Formation Mahu Sag

Full-thickness osteochondral defect repair using a biodegradable bilayered scaffold of porous zinc and chondroitin sulfate hydrogel

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Bioactive Materials 2024年第2期32卷 400-414页

作者： Fan Yang Yageng Li Lei Wang Haodong Che Xin Zhang Holger Jahr luning Wang Dong Jiang Hongjie huang Jianquan Wang Department of Sports Medicine Peking University Third HospitalInstitute of Sports Medicine of Peking UniversityBeijing Key Laboratory of Sports InjuriesEngineering Research Center of Sports Trauma Treatment Technology and DevicesMinistry of EducationBeijingChina Beijing Advanced Innovation Center for Materials Genome Engineering State Key Laboratory for Advanced Metals and MaterialsSchool of Materials Science and EngineeringUniversity of Science and Technology BeijingBeijingChina Institute of Anatomy and Cell Biology University Hospital RWTH AachenAachen52074Germany Institute of Structural Mechanics and Lightweight Design RWTH Aachen University52062AachenGermany

The regeneration of osteochondral tissue necessitates the re-establishment of a gradient owing to the unique characteristics and healing potential of the chondral and osseous *** the self-healing capacity of hyaline cartilage is limited,timely mechanical support during neo-cartilage formation is crucial to achieving optimal repair *** this study,we devised a biodegradable bilayered scaffold,comprising chondroitin sulfate(CS)hydrogel to regenerate chondral tissue and a porous pure zinc(Zn)scaffold for regeneration of the underlying bone as mechanical support for the cartilage *** photocured CS hydrogel possessed a compressive strength of 82 kPa,while the porous pure Zn scaffold exhibited a yield strength of 11 MPa and a stiffness of 0.8 *** mechanical properties are similar to values reported for cancellous *** vitro biological experiments demonstrated that the bilayered scaffold displayed favorable cytocompatibility and promoted chondrogenic and osteogenic differentiation of bone marrow stem *** implantation,the scaffold facilitated the simultaneous regeneration of bone and cartilage tissue in a porcine model,resulting in(i)a smoother cartilage surface,(ii)more hyaline-like cartilage,and(iii)a superior integration into the adjacent host *** bilayered scaffold exhibits significant potential for clinical application in osteochondral regeneration.

关键词： Chondroitin sulfate hydrogel Additive manufacturing Porous Zn scaffold Osteochondral regeneration