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International Journal of Minerals,Metallurgy and Materials 2019年第9期26卷 1105-1112页

作者： Chang-sheng Yue Ben Peng Wei Tian Guang-hua Lu Gui-bo qiu Mei Zhang Central Research Institute of Building and Construction Co. Ltd.Metallurgical Corporation of China Group (MCC Group)Beijing 100088China National Engineering Research Center for Industrial Environmental Protection Beijing 100088China School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083China

The stabilization of severely As-polluted soil has been a challenge, especially for the extremely toxic As(Ⅲ) contaminants. In this study, soil with a high As concentration(26084 mg/kg) was availably stabilized by a H2O2 pre-oxidation assisted TMT-15(Na3S3C3N3 solution with a mass fraction of 15%) and FeCl3·6 H2O stabilization method. The results showed that the combination of the two stabilizers(i.e., TMT-15 and FeCl3·6 H2O) presented a better stabilization behavior than either stabilizer used individually. The use of the H2O2 pre-oxidation assisted TMT-15 and FeCl3·6 H2O stabilization approach not only converted the As(Ⅲ) to As(Ⅴ) but also reduced the toxic leaching concentration of As to 1.61 mg/L, which is a safe level, when the additions of TMT-15 and FeCl3·6 H2O were 2 mL and 0.20 g, respectively. Thus, using only a simple H2O2 pre-oxidation to combine clean stabilization with non-toxic stabilizers TMT-15 and FeCl3·6 H2O could render the severely As-contaminated soil safe for disposal in a landfill.

关键词： severely As-contaminated soil non-toxic stabilizers combining stabilization pre-oxidation

Trichloroethylene Dechlorination by Copper-contained Zero-valent Iron Slurry

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Chemical Research in Chinese Universities 2013年第6期29卷 1173-1179页

作者： LI Hai-jun qiu Hua ZHANG Lan-ying LIU Na ZHU bo-lin Key Laboratory of Groundwater Resources and Environment Ministry of EducationJilin University Changchun 130021 P.R.China Liaoyang Environmental Inspection Office Liaoyang 111000 P.R.China

Zero valent iron technology has been widely used for treating contaminated wastewater these years. However, it always results in inefficiency in the processes of drying and storage due to oxidation and passivation. This could be avoided by in situ synthesized zero valent iron slurry in an emergency if it possesses the same performance as zero valent iron. In this study, iron slurry was synthesized and directly used for dechlorinating trichloroe- thylene to measure its degradation efficiencies and properties. Results show that 2%（mass ratio） copper-contained zero-valent iron slurry exhibits the optimal performance compared with the other iron slurries. Batch experiments in- dicate that factors such as the concentration of trichloroethylene, pH, dissolved oxygen and equilibrium to a certain extent affect the reduction oftrichloroethylene by 2%（mass ratio） copper-contained zero-valent iron slurry. Persistent, high-efficiency degradation performance could last 7 cycles. These demonstrate that the application of coppercontained zero-valent iron slurry in treating trichloroethylene-contained wastewater is realistic.

关键词： Zero valent iron Copper-contained zero-valent iron slurry Trichloroethylene Dechlorination

Experience Availability： Tail-Latency Oriented Availability in Software-Defined Cloud Computing

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Journal of Computer Science & Technology 2017年第2期32卷 250-257页

作者： Bin-Lei Cai Rong-Qi Zhang Xiao-bo Zhou Lai-Ping Zhao Ke-qiu Li Tianjin Key Laboratory of Advanced Networking School of Computer Science and Technology Tianjin University Tianjin 300350 China School of Computer Software Tianjin University Tianjin 300350 China

Resource sharing, multi-tenant interference and bursty workloads in cloud computing lead to high tail-latency that severely affects user quality of experience （QoE）, where response latency is a critical factor. A lot of research efforts are dedicated to reducing high tail-latency and improving user QoE, such as software-defined cloud computing （SDC）. However, the traditional availability analysis of cloud computing captures the pure failure-repair behavior with user QoE ignored. In this paper, we propose a conceptual framework, experience availability, to properly assess the effectiveness of SDC while taking into account both availability and response latency simultaneously. We review the related work on availability models and methods of cloud systems, and discuss open problems for evaluating experience availability in SDC. We also show some of our preliminary results to demonstrate the feasibility of our ideas.

关键词： cloud computing software-defined cloud computing (SDC) availability tail-latency

Self-organized phase-transition lithography for all-inorganic photonic textures

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Light(Science & Applications) 2021年第6期10卷 1020-1028页

作者： bo Zhang Dezhi Tan Zhuo Wang Xiaofeng Liu Beibei Xu Min Gu Limin Tong Jianrong qiu State Key Laboratory of Modern Optical Instrumentation College of Optical Science and EngineeringZhejiang University310027 HangzhouChina School of Materials Science and Engineering Zhejiang University310027 HangzhouChina. Centre for Artificial-lntelligenee Nano photonics School of Optical Science and EngineeringShanghai University of Science and Technology200093 ShanghaiChina. CAS Center for Excellence in Ultra-intense Laser Science Chinese Academy of Sciences201800 ShanghaiChina

Realizing general processing applicable to various materials by one basic tool has long been considered a distant ***,ultrafast laser-matter interaction has emerged as a highly universal platform with unprecedented optical phenomena and provided implementation paths for advanced manufacturing with novel ***,we report the establishment of a three-dimensional(3D)focal-area interference field actively induced by a single ultrafast laser in transparent *** on this,we demonstrate a radically new approach of self-organized phase-transition lithography(SOPTL)to achieve super-resolution construction of embedded all-inorganic photonic textures with extremely high *** generated textures exhibit a tunable photonic bandgap(PBG)in a wide range from〜1.3 to〜2 *** complicated interlaced textures with adjustable structural features can be fabricated within a few seconds,which is not attainable with any other conventional *** suggests that the SOPTL is extendable to more than one material *** study augments light-matter interaction physics,offers a promising approach for constructing robust photonic devices,and opens up a new research direction in advaneed lithography.

关键词： lithography transition phase

Recovering rare earths,lithium and fluorine from rare earth molten salt electrolytic slag using sub-molten salt method

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Journal of Rare Earths 2024年第9期42卷 1774-1781,I0005页

作者： Delong Yang Mingming Yu Yusufujiang Mubula Weiquan Yuan Zheyu Huang bo Lin Guangjun Mei Tingsheng qiu School of Resources and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou341000China Jiangxi Key Laboratory of Mining Engineering Jiangxi University of Science and TechnologyGanzhou341000China School of Resources and Environmental Engineering Wuhan University of TechnologyWuhan430070China Gannan Institute of Science and Technology Ganzhou341000China

Viewing the problem of high ene rgy consumption in the process of recovering rare earths from rare earth molten salt electrolysis slag,an environmentally friendly and low carbon process by sub-molten salt decomposition was *** thermodynamic analysis of sub-molten salt reaction indicates that the recovery of rare earths from the slag using sub-molten salt medium is thermodynamically *** this process,the rare earth fluoride and lithium in the slag are almost transformed into rare earth hydroxide,sodium fluoride and lithium hydroxide,fluorine and lithium are transferred into the washing solution,and the rare earths in the residues can be leached into solution by acid *** the optimum reaction conditions of reaction temperature 200℃,reaction time 3 h,NaOH initial concentration 80%,NaOH-Slag mass ratio 3:1,the leaching efficiency of rare earths,fluorine and lithium can reach to 99.05%,98.23% and 99.22%.After evaporation,the fluorine and lithium in the washing solution can be obtained in the forms of sodium fluoride and lithium fluoride,the recovery efficiency reach 95.5%and 92.8%,*** RE oxides(99.53%) can be obtained from the leaching solution after precipitation and roasting.

关键词： Rare earth electrolysis slag Sub-molten salt Green extraction Fluorine Lithium Recovery

Effect of various functional groups on biodiesel synthesis from soybean oils by acidic ionic liquids

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Chinese Chemical Letters 2012年第10期23卷 1107-1110页

作者： Ming Ming Fan Jing Jie Zhou qiu Ju Han Ping bo Zhang The Key Laboratory of Food Colloids and Biotechnology Ministry of EducationSchool of Chemical and Material EngineeringJiangnan UniversityWuxi 214122China

Preparation of biodiesel from soybean oils catalyzed by five acidic ionic liquids with three cationic functional groups was investigated. The improvement of the catalytic activities was affected by various functional groups including pyridine group, N- methylimidazole group, triethylamine group. Among them [C4SO3Hpy]HSO4 with pyridine group showed better catalytic activity with the biodiesel yield of 94.5%, and still yielded more than 90% after six successive uses. The possible mechanism was also discussed by two reaction paths in detail.

关键词： Biodiesel Acidic ionic liquid Soybean oils Transesterification

Hot Compression Mechanical Behavior of Solution Heat‑Treated and Pre‑aged Mg–Zn–Gd–Er Alloys

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Acta Metallurgica Sinica(English Letters) 2023年第3期36卷 469-485页

作者： bo Che Liwei Lu Longfei Liu Yan Yang Wei Kang Jun Luo Zhiqiang Wu Yongfeng qiu School of Materials Science and Engineering Hunan University of Science and TechnologyXiangtan 411201China College of Materials Science and Engineering Chongqing UniversityChongqing 400044China Hunan Provincial Key Laboratory of Vehicle Power and Transmission System Hunan Institute of EngineeringXiangtan 411104China Guiyang Aluminum Magnesium Design&Research Institute Co. LtdGuiyang 550081China School of Automation Central South UniversityChangsha 410083China

The mechanical behavior of solution heat-treated and pre-aged Mg–6Zn–1Gd–1Er alloys during hot compression(from 180 to 330℃)has been *** results showed that the flow stress curves of the pre-aged sample(PAS)intersected with that of the solution heat-treated sample(SHTS)during hot *** 180℃,when the true strain is 0.27 and 0.47,the PAS showed larger and smaller stress(210.80 MPa vs.207.58 MPa and 205.67 MPa vs.207.93 MPa)than the SHTS,*** phenomena were due to the stronger interaction of W phase and dislocations/twins under the strain of 0.27,while dynamic recrystallization softening occurred under the strain of *** the temperature increased to 330℃,the flow stress of PAS and SHTS showed an opposite trend to that of 180℃.Continuous dynamic recrystallization and particle stimulated nucleation based on slip operations are the main deformation mechanisms under 330℃.At the true strain is 0.33 and 0.53,the PAS has smaller and larger stress(61.32 MPa vs.63.69 MPa and 58.75 MPa vs.57.09 MPa)than the SHTS,*** increasing deformation resistance of dynamic precipitation improved the flow stress under smaller strain and dynamic recrystallization decreased the flow stress under high strain,which resulted the opposite phenomena of SHTS.

关键词： Mg-6Zn-1Gd-1Er alloy Mechanical behavior Precipitates Twin Dynamic recrystallization

Chain Conformation and Local Rigidity of Soluble Polyimides(II):Isomerized Polyimides in THF

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Chemical Research in Chinese Universities 2012年第2期28卷 329-333页

作者： LIU Gui-hua qiu Xue-peng bo Shu-qin JI Xiang-ling State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China Polymer Composite and Engineering Laboratory Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022P.R.China Graduate School of the Chinese Academy of Sciences Beijing 100049P.R.China

Two soluble isomerized polyimides（PIs） synthesized from 2,2＇-bis（3,4-dicarboxyphenyl）hexafluoropropane dianhydride（6FDA） with either 2,2＇-dimethylbenzidine（2,2＇-DMB） or 3,3＇-DMB were investigated by means of size-exclusion chromatography coupled with multi-angle laser light scattering,a viscometer and a refractive index detector in tetrahydrofuran（THF） with tetrabutylammonium bromide（TBAB） at 35 ℃.The corresponding parameters related to conformations α and ν,evaluated from the scaling relationships [η]=K η M α and R g =K g M ν,respectively,were 0.66±0.01 and 0.55±0.02 for poly（6FDA/3,3＇-DMB）,and 0.67±0.01 and 0.56±0.01 for poly（6FDA/2,2＇-DMB）,indicating a random coil conformation for both the samples in this mobile *** persistence length l p and shift factor M L（relative molecular weight per unit contour length） were estimated from the relationship between intrinsic viscosity and molecular weight for the wormlike cylinder model proposed by *** l p and M L showed that the two PIs in THF are flexible chains and exhibit some local rigidity to some extent.

关键词： Isomerized polyimide Chain conformation Local rigidity Wormlike chain Persistence length

Mechanoluminescent-Triboelectric Bimodal Sensors for Self-Powered Sensing and Intelligent Control

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Nano-Micro Letters 2023年第5期15卷 313-325页

作者： bo Zhou Jize Liu Xin Huang Xiaoyan qiu Xin Yang Hong Shao Changyu Tang Xinxing Zhang State Key Laboratory of Polymer Materials Engineering Polymer Research InstituteSichuan UniversityChengdu 610065People’s Republic of China Chengdu Development Center of Science and Technology China Academy of Engineering PhysicsChengdu 610200People’s Republic of China

Self-powered flexible devices with skin-like multiple sensing ability have attracted great attentions due to their broad applications in the Internet of Things(IoT).Various methods have been proposed to enhance mechano-optic or electric performance of the flexible devices;however,it remains challenging to realize the display and accurate recognition of motion trajectories for intelligent ***,we present a fully self-powered mechanoluminescent-triboelectric bimodal sensor based on micronanostructured mechanoluminescent elastomer,which can patterned-display the force *** deformable liquid metals used as stretchable electrode make the stress transfer stable through overall device to achieve outstanding mechanoluminescence(with a gray value of 107 under a stimulus force as low as 0.3 N and more than 2000 cycles reproducibility).Moreover,a microstructured surface is constructed which endows the resulted composite with significantly improved triboelectric performances(voltage increases from 8 to 24 V).Based on the excellent bimodal sensing performances and durability of the obtained composite,a highly reliable intelligent control system by machine learning has been developed for controlling trolley,providing an approach for advanced visual interaction devices and smart wearable electronics in the future IoT era.

关键词： Bimodal sensors Mechanoluminescence Triboelectric nanogenerator Intelligent control Self-powered

Chondroid syringoma of the lower back simulating lipoma:A case report

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World Journal of Clinical Cases 2022年第29期10卷 10708-10712页

作者： qiu-Feng Huang bo Yu Xiao-Ping Hu Yong Shao Department of Dermatology Peking University Shenzhen HospitalShenzhen 518035Guangdong ProvinceChina Shenzhen Peking University-The Hong Kong University of Science and Technology Medical Center Biomedical Research InstituteShenzhen 518035Guangdong ProvinceChina

BACKGROUND Chondroid syringoma(CS)is a rare tumor of the apocrine or eccrine *** of the lower back is rare,and its clinical manifestations are similar to those of lipoma,which is a common misdiagnosis for this *** SUMMARY A 39-year-old woman presented with a 2-year history of an asymptomatic subcutaneous mass on the lower *** lesions increased progressively over *** patient denied any *** examination showed that there was a subcutaneous mass,ranging from 3-4 cm in diameter,with a clear boundary on the lower *** surface of the skin was smooth without ulceration or *** examination was consistent with the diagnosis of *** CS is a rare tumor of the apocrine or eccrine *** usually presents as a wellcircumscribed and single subcutaneous *** showed the tumor was located in the dermis,with nests,sheets,and cords of basal-like cells,mucin deposition,and chondroid *** herein report a case of CS located in the lower *** of the lower back is rare,and its clinical manifestations are similar to those of lipoma,for which it is commonly misdiagnosed.

关键词： Chondroid syringoma Mixed tumor Lower back Lipoma Case report