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On the chemical compatibility between Zr-4 substrate and well-bonded Cr_2AlC coating

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Journal of Materials Science & Technology 2019年第1期35卷 1-5页

作者： Jie zhang Zhilin Tian haibin zhang Lei zhang Jingyang Wang High-Performance Ceramics Division Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics Technical Support Division Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

Accident tolerant fuel(ATF) for the light water reactor has gained wide attentions after the Fukushima accident. To enhance the accident-tolerance of the nuclear system, one strategy is to modify the Zr-based alloy cladding surface with advanced ceramic coating. In this work, monolithic and dense Cr_2AlC coating has been synthesized by magnetron sputtering. The as-grown Cr_2AlC coating exhibits good chemical compatibility with Zr-based alloy substrate as well as mechanical integrity under both pull-off and scratch tests. The coating system also presents moderate thermochemical compatibility at 800℃ but degrades above 1000℃ under simulated loss-of-coolant accident(LOCA) conditions.

关键词： Accident tolerant fuel Cr2AlC coating Thermochemical compatibility

业财规则引擎技术赋能公立医院数智化财会监督

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卫生经济研究 2024年第7期41卷 60-62页

作者：张海斌高垚顾一欣王晶晶上海申康医院发展中心上海200011 上海铭垚信息科技有限公司上海200090 上海交通大学医学院附属第九人民医院上海200011 上海大学上海200444

业财规则引擎在公立医院内部异构系统下开展低成本的跨系统监督,帮助公立医院在风险动态变化下做出敏捷响应,能够有效提升财会监督效能。上海某医院基于业财规则引擎技术,率先在科研管理领域进行了数智化财会监督探索,取得了较好的效果... 详细信息

业财规则引擎在公立医院内部异构系统下开展低成本的跨系统监督,帮助公立医院在风险动态变化下做出敏捷响应,能够有效提升财会监督效能。上海某医院基于业财规则引擎技术,率先在科研管理领域进行了数智化财会监督探索,取得了较好的效果,为公立医院开展数智化财会监督提供了思路和借鉴。

关键词：公立医院财会监督数智化业财规则引擎

全球碳中和进程下数智技术的应用场景与效应评估分析

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数字通信世界 2024年第7期 85-87页

作者：张龙张海滨卢迪张兴旺中国海洋石油集团有限公司节能减排监测中心天津300457 海油总节能减排监测中心有限公司天津300457

全球气候变暖会引发一系列自然灾害,危及人类可持续发展。在构建合作共赢的全球气候治理体系大背景下我国积极部署推进“双碳”工作,结合高质量碳中和实践需求加强对数智技术的探究成为重要课题。该文以此为出发点概述了碳中和的基本内... 详细信息

全球气候变暖会引发一系列自然灾害,危及人类可持续发展。在构建合作共赢的全球气候治理体系大背景下我国积极部署推进“双碳”工作,结合高质量碳中和实践需求加强对数智技术的探究成为重要课题。该文以此为出发点概述了碳中和的基本内容与实施现状。并在剖析数智技术应用场景的基础上,分别对数智技术应用后的减排效应、增耗效应进行了分析。

关键词：碳中和数智技术应用场景效应评估

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Study on the deactivation and regeneration of the ZSM-5 catalyst used in methanol to olefins

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Journal of Natural Gas Chemistry 2011年第3期20卷 266-270页

作者： Jingchang zhang haibin zhang Xiuying Yang Zhong Huang Weiliang Cao Institute of Modern Catalysis State Key Laboratory of Chemical Resource Engineering Beijing University of Chemical Technology Bering 100029 China Hainan Institute of Science and Technology Haikou 571126 Hainan China Shandong New Time Pharmaceutical Co. Ltd. Jining 272400 Shandong China

ZSM-5 zeolite catalyst modified by a trace of metal cations shows high activity and high selectivity for the reaction of methanol to olefins （MTO）, but it inclines to deactivate during the reaction. In this paper, the mechanism of the catalyst deactivation and the regeneration method were studied by X-ray diffraction （XRD）, N2 adsorption-desorption, infrared spectra （IR）, and infrared spectra coupled with NH3 molecular probes （IR-NH3）. These characterizations indicated that coke formation was the main reason for the catalyst deactivation. To regenerate the deactivated catalyst, two methods, i.e., calcination and methanol leaching, were used. N2 adsorption-desorption, IR and IR-NH3 characteriza-tions showed that both methods can eliminate coke deposited on the catalyst and make the catalyst reactivated. XRD showed that the structure of the catalyst did not change after regeneration. Interestingly, the regenerated catalyst even showed better catalytic performance of the MTO reaction than the fresh one. Besides, the calcination regeneration can eliminate coke more completely, however, the methanol leaching method can be more easily carried out in situ in the reactor.

关键词： methanol olefins ZSM-5 deactivation regeneration

20%甲维盐·氯噻啉悬浮剂的配方研究与开发

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农药 2024年第8期63卷 568-571页

作者：朱艳梅张海滨任新峰张雷雷陈芸芸南通江山农药化工股份有限公司江苏南通226017 南通职业大学江苏南通226007

[目的]研制20%甲维盐和氯噻啉复配悬浮剂产品。[方法]采用流点法对润湿分散剂进行筛选,并对流变改良剂、稳定剂等进行优化筛选试验。[结果]获得最佳配方:甲维盐4%、氯噻啉16%、D-4253%、500LQ 2%、黄原胶0.15%、硅酸镁铝1.5%、BHT 0.4%... 详细信息

[目的]研制20%甲维盐和氯噻啉复配悬浮剂产品。[方法]采用流点法对润湿分散剂进行筛选,并对流变改良剂、稳定剂等进行优化筛选试验。[结果]获得最佳配方:甲维盐4%、氯噻啉16%、D-4253%、500LQ 2%、黄原胶0.15%、硅酸镁铝1.5%、BHT 0.4%、丙二醇4%、SAG15720.15%、苯甲酸钠1%、去离子水补足100%。[结论]该配方产品悬浮率达到>95%,热储(54±2)℃分解率<5%,其他质量指标也符合标准要求,产品质量稳定;对褐飞虱具有较好防治效果,应用前景广阔。

关键词：甲维盐氯噻啉悬浮剂

An Improved Robust Sparse Convex Clustering

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Tsinghua Science and Technology 2023年第6期28卷 989-998页

作者： Jinyao Ma haibin zhang Shanshan Yang Jiaojiao Jiang Gaidi Li Beijing Institute for Scientific and Engineering Computing Faculty of ScienceBeijing University of TechnologyBeijing 100124China School of Computer Science and Engineering University of New South WalesSydney 2052Australia

Convex clustering,turning clustering into a convex optimization problem,has drawn wide *** overcomes the shortcomings of traditional clustering methods such as K-means,Density-Based Spatial Clustring of Applications with Noise(DBSCAN)and hierarchical clustering that can easily fall into the local optimal ***,convex clustering is vulnerable to the occurrence of outlier features,as it uses the Frobenius norm to measure the distance between data points and their corresponding cluster centers and evaluate *** accurately identify outlier features,this paper decomposes data into a clustering structure component and a normalized component that captures outlier *** from existing convex clustering evaluating features with the exact measurement,the proposed model can overcome the vast difference in the magnitude of different features and the outlier features can be efficiently identified and *** solve the proposed model,we design an efficient algorithm and prove the global convergence of the *** on both synthetic datasets and UCI datasets demonstrate that the proposed method outperforms the compared approaches in convex clustering.

关键词： convex clustering outlier features block coordinate descent Newton’s method

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转鼓法高炉渣处理技术研究

冶金设备 2024年第2期 38-41页

作者：张海斌奉京蕾中钢设备有限公司北京100080 北京国冶锐诚工程技术有限公司北京100080

研究转鼓法渣处理技术对高炉炉渣进行处理,能否达到节约用水的目的。采用高炉水渣经粒化塔冲渣沟进入转鼓,通过转鼓进行渣水分离,通过增加熔渣沟长度、采用冲制箱极速水流水淬等方法转鼓分离高炉炉渣,并分析炉渣渣水比和吨耗水率,可以... 详细信息

研究转鼓法渣处理技术对高炉炉渣进行处理,能否达到节约用水的目的。采用高炉水渣经粒化塔冲渣沟进入转鼓,通过转鼓进行渣水分离,通过增加熔渣沟长度、采用冲制箱极速水流水淬等方法转鼓分离高炉炉渣,并分析炉渣渣水比和吨耗水率,可以明显得出运用转鼓法高炉渣处理技术的项目,渣水比和吨耗水率都有明显优化,本项目通过改进转鼓法渣处理技术对高炉炉渣处理方法进行工艺技术研究,可以达到节约用水节约能源的目的,符合国家持续发展要求,供大家参考。

关键词：高炉炉渣转鼓法渣处理

Distributed velocity-free formation tracking control for clustered UAVs under virtual leader-follower framework

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Science China(Technological Sciences) 2024年第5期67卷 1538-1552页

作者： zhang ZhaoYu DUAN haibin School of Automation Science and Electrical Engineering Beihang UniversityBeijing100083China

The collective formation control problem of a cluster of rotorcraft unmanned aerial vehicles(UAVs)is investigated in this *** consensus tracking towards formation centroid with following UAVs forming a predefined configuration around the leader is considered as the *** prior studies,the information of the central reference trajectory,which is deemed as a virtual leader in the leader-follower topology,is not directly accessible for partial nodes through the communication ***,a novel distributed formation tracking control scheme is ***,a decentralized saturation observer is employed to estimate the reference acceleration signal of the virtual *** the absence of linear velocity measurement,two sliding manifolds are proposed by introducing the relative discrepancy terms of position and *** a smooth saturation operator in the form of a sigmoid function is applied to generate the command force ***,under the dilemma of constrained capabilities of the airborne sensors equipped on the rotorcrafts,the angular velocity is difficult to *** cascaded auxiliary attitude error systems are established on each rotorcraft system to synthesize the rotating torque with no need to require the angular velocity *** to the strong coupling and nonlinearity of the rotorcraft UAV system,the command angular velocity and the derivatives of command input are hard to *** a continuous nonlinear differentiator is proposed to work with the difficulties in deriving the explicit expression of system ***,a detailed stability analysis is conducted progressively on the angular control loop,reference trajectory observer loop,and the position control loop.A simulation scheme for a cluster of four rotorcraft UAVs tracking sinusoidal trajectory are presented and the formation control results are proven advantageous in comparison with the control protocol in previous literature.

关键词： distributed formation control unmanned rotorcraft clusters velocity-free tracking nonlinear differentiator

Combustion synthesis and characterizations of Sm2O3 doped zirconolite-rich waste forms with CuO as oxidant

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Journal of Rare Earths 2019年第12期37卷 1359-1365页

作者： Kuibao zhang Dan Yin Zongsheng He Jiali Xue Wenwen Zhao haibin zhang State Key Laboratory of Environment-friendly Energy Materials Southwest University of Science and TechnologyMianyang 621010China National Defense Key Discipline Lab of Nuclear Waste and Environmental Safety Southwest University of Science and TechnologyMianyang 62W10China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China

Zirconolite is one of the most important matrix materials for nuclear waste *** this study,Sm was employed as the surrogate of trivalent ***-doped zirconolite-rich waste forms were readily prepared by combustion synthesis(CS)using CuO as the *** different schemes with or without Al2O3 as the charge compensator were carried out *** results demonstrate that Al2O3 addition results in complex phase *** the other hand,the samples without Al2O3 addition show desirable products of zirconolite and *** EDX analysis shows that Sm is concurrently incorporated into the Ca and Zr sites of zirconolite,which transforms to pyrochlore structure with high Sm2O3 *** aqueous durability of representative Sm-doped sample(Sm-0.6)was *** 42 days normalized leaching rate of Sm is as low as 6.41×10-7 g/(m2 d),which exhibits high durability of Sm-doped sample.

关键词： Combustion synthesis Sm2O3 Zirconolite Pyrochlore Aqueous durability Rare earths