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Chinese Journal of Chemical Engineering 2024年第3期67卷 157-165页

作者： Shunda lin Yang lu Lin Zheng Ling long Xuguang Jiang Jianhua Yan State Key Laboratory of Clean Energy Utilization Institute for Thermal Power EngineeringZhejiang UniversityHangzhou 310027China Zhejiang University Qingshanhu Energy Research Center Hangzhou 310027China Hangzhou Xiaoshan Jinjiang Green Energy Co. Ltd.XiaoshanHangzhou 310000China

High concentrations of copper ions(Cu(Ⅱ)) in water will pose health risks to humans and the ecological environment. Therefore, this study aims to utilize ultrasonic-cured modified municipal solid waste incineration(MSWI) fly ash for Cu(Ⅱ) adsorption to achieve the purpose of “treating waste by waste.” The effects of p H, adsorption time, initial concentration, and temperature on the modified MSWI fly ash’s adsorption efficiency were systematically studied in this article. The adsorption performance of the modified MSWI fly ash can be enhanced by the ultrasonic modification. At pH = 2, 3 and 4, the adsorption capacity of the modified MSWI fly ash for Cu(Ⅱ) increased by 2.7, 1.9 and 1.2 times, respectively. Furthermore, it was suggested that the adsorption process of the modified MSWI fly ash can be better simulated by the pseudo-second-order kinetic model, with a maximum adsorption capacity calculated by the Langmuir model of 24.196 mg.g-1. Additionally, the adsorption process is spontaneous,endothermic, and chemisorption-dominated from the thermodynamic studies(ΔH and ΔS > 0, ΔG < 0).Finally, the enhanced adsorption performance of the modified MSWI fly ash for Cu(Ⅱ) may be attributed to electrostatic interaction and chelation effects.

关键词： Ultrasound MSWI fly ash Cu(Ⅱ) Wastewater Adsorption

连钱草中1个具有13α,27-环丙烷结构的新六环三萜

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药学学报 2024年第5期59卷 1334-1340页

作者：张倩陆美龙刘天资张悦婷朱傲丁丽丽韩竹箴谷丽华王峥涛上海中医药大学中药研究所中药标准化教育部重点实验室国家中医药管理局中药新资源与质量评价重点实验室上海201203 上海中药标准化研究中心上海201203

为研究连钱草Glechoma longituba(Nakai)Kupr.中的化学成分,探讨其活血化瘀物质基础,采用MCI、硅胶、凝胶、ODS柱色谱及制备薄层等色谱技术对连钱草醇提物进行系统分离,通过MS、1D NMR、2D NMR等波谱数据分析鉴定化合物结构。从连钱草... 详细信息

为研究连钱草Glechoma longituba(Nakai)Kupr.中的化学成分,探讨其活血化瘀物质基础,采用MCI、硅胶、凝胶、ODS柱色谱及制备薄层等色谱技术对连钱草醇提物进行系统分离,通过MS、1D NMR、2D NMR等波谱数据分析鉴定化合物结构。从连钱草醇提物的二氯甲烷萃取部位分离得到8个三萜类化合物,分别鉴定为2α,3α,16β-trihydroxy-13α,27-cyclours-11-en-28-oic acid(1)、28-norurs-12-ene-3β,17β-diol(2)、28-norolean-12-ene-3β,17β-diol(3)、齐墩果酮酸(4)、3β,13β-dihydroxyurs-11-en-28-oic acid(5)、熊果醇(6)、齐墩果酸(7)和熊果酸(8)。化合物1为罕见的具有13α,27-环丙烷结构的新六环三萜,命名为euscaphic acid H,化合物2、3为首次从唇形科中分离得到,化合物4、5为首次从活血丹属中分离得到。以凝血四项指标(APTT、PT、TT、FIB)对三萜类成分进行体外抗凝血活性评价,化合物1~7均显示一定的抗凝血趋势,其中化合物1和6表现出较明显的体外抗凝活性。

关键词：连钱草活血丹六环三萜化学成分抗凝血

Nitrogen acquisition,fixation and transfer in maize/alfalfa intercrops are increased through root contact and morphological responses to interspecies competition

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Journal of Integrative Agriculture 2021年第8期20卷 2240-2254页

作者： SHAO Ze-qiang ZHENG Cong-cong Johannes APOSTMA lu Wen-long GAO Qiang GAO Ying-zhi ZHANG Jin-jing College of Resources and Environmental Sciences Jilin Agricultural University/Key Laboratory of Sustainable Utilization of Soil Resources in the Commodity Grain Bases in Jilin ProvinceChangchun 130118P.R.China College of Resource and Environment Engineering Jilin Institute of Chemical TechnologyJilin 132022P.R.China Forschungszentrum Jülich GmbH Institute of Bio-and Geosciences-Plant Sciences(IBG-2)Jülich 52428Germany Key Laboratory of Vegetation Ecology Northeast Normal UniversityChangchun 130024P.R.China

Nitrogen(N)fixation by legumes and nitrogen transfer to cereals have been considered as important pathways for overyielding and higher N use efficiency in cereal/legume intercropping ***,the extent to which root morphology contributes to N fixation and transfer is unclear.A two-factorial greenhouse experiment was conducted to quantify the N fixation,transfer and root morphology characteristics of the maize/alfalfa intercropping system in two consecutive years using the 15N-urea leaf labeling method,and combining two N levels with three root separation techniques.N application could inhibit N fixation and transfer in a maize/alfalfa intercropping *** of the N application level,compared with plastic sheet separation(PSS),no separation(NS)and nylon mesh separation(NNS)significantly increased the total biomass(36%)and total N content(28%),while the N fixation rate also sharply increased by 75 to 134%,and the amount of N transferred with no root barrier was 1.24–1.42 times greater than that with a mesh *** analysis(RDA)showed that the crown root dry weight(CRDW)of maize and lateral root number(LRN)of alfalfa showed the strongest associations with N fixation and *** results highlight the importance of root contact for the enhancement of N fixation and transfer via changes in root morphology in maize/alfalfa intercropping systems,and the overyielding system was achieved via increases in maize growth,at the cost of smaller decreases in alfalfa biomass production.

关键词： maize/alfalfa intercropping nitrogen fixation and transfer root morphology nitrogen utilization

Cold Model of Coal Gas Component Concentration Distribution in Blast Furnace Raceway

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Journal of Iron and Steel Research International 2009年第6期16卷 1-6页

作者： ZHANG Sheng-fu WEN Liang-ying BAI Chen-guang QIU Gui-bao HU Mei-long lu Xue-wei College of Materials Science and Engineering Chongqing University Chongqing 400030 China

Primary distribution of coal gas in blast furnace raceway has an important effect on blast furnace ironmaking process. The coal gas component concentration distribution was studied experimentally using a three-dimensional cold model. The results showed that CH4 concentration diminishes along with the height increasing on vertical section of raceway, and the concentration is the highest in the bottom of raceway. CH4 concentration increases gradually *** raceway depth with the lowest concentration value in front of the tuyere. The distribution of CH4 concentration has different characteristics in different raceway zones.

关键词： blast furnace raceway coal gas component concentration distribution

Drastic increase of channel capacity in quantum secure direct communication using masking

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Science Bulletin 2021年第13期66卷 1267-1269,M0003页

作者： Gui-lu long Haoran Zhang State Key Laboratory of Low-dimensional Quantum Physics and Department of Physics Tsinghua UniversityBeijing 100084China Beijing Academy of Quantum Information Sciences Beijing 100193China Collaborative Innovation Center of Quantum Matter Beijing 100084China Beijing National Research Center for Information Science and Technology Beijing 100084China

The security of quantum communication is based on the laws of quantum mechanics,which can resist attacks from any powerful classical and quantum *** has great potential in secure communication in the *** well-known form of quantum communication is quantum key distribution(QKD),where random numbers are transmitted in the quantum channel to generate a shared key between two remote parties.

关键词：信道容量最大传输距离窃听者安全容量传输速率量子态信道损耗误码率

Phenomenology of heavy neutral gauge boson at muon collider

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Science China(Physics,Mechanics & Astronomy) 2024年第3期67卷 60-79页

作者： Zongyang lu Honglei Li Zhi-long Han Zong-Guo Si Liuxin Zhao School of Physics and Technology University of JinanJinan 250022China School of Physics Shandong UniversityJinan 250100China

Heavy neutral gauge boson Z' is proposed in many new physics *** has rich phenomena at the future muon *** study the properties of Z' boson with the process of μ^(+)μ^(-)→qq,μ^(+)μ^(-)→l^(+)l^(-),μ^(+)μ^(-)→ ZH and μ^(+)μ^(-)→ W^(+)W^(-).The discrepancy of Z' coupling to different types of particles can be shown in the cross section distributions around the resonance peak of various decay *** distributions of the final quark or lepton in μ^(+)μ^(-)→qq/l^(+)l^(-)process are sensitive to the parameters such as mass of Z' and the Z-Z' mixing *** interaction of new gauge boson coupling to the standard model gauge particles and Higgs boson are also studied through μ^(+)μ^(-)→ ZH→l^(+)l^(-)bb and μ^(+)u^(-)→ W^(+)W^(-)→l^(+)l^(-)v_(l)v_(l).The cross section and the final particles' angular distributions with the contribution of Z' boson differ from those processes with only standard model particles.A forward-backward asymmetry defined by the angular distribution is provided to show the potential of searching for new physics at the muon ***,the beam polarization with certain value can effectively enlarge the forward-backward asymmetry.

关键词： Z′boson muon collider new physics

Near-term quantum computing techniques: Variational quantum algorithms, error mitigation, circuit compilation, benchmarking and classical simulation

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Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 23-72页

作者： He-Liang Huang Xiao-Yue Xu Chu Guo Guojing Tian Shi-Jie Wei Xiaoming Sun Wan-Su Bao Gui-lu long Henan Key Laboratory of Quantum Information and Cryptography Zhengzhou 450000China State Key Lab of Processors Institute of Computing TechnologyChinese Academy of SciencesBeijing 100190China School of Computer Science and Technology University of Chinese Academy of SciencesBeijing 100049China Beijing Academy of Quantum Information Sciences Beijing 100193China Department of Physics Tsinghua UniversityBeijing 100084China

Quantum computing is a game-changing technology for global academia,research centers and industries including computational science,mathematics,finance,pharmaceutical,materials science,chemistry and *** it has seen a major boost in the last decade,we are still a long way from reaching the maturity of a full-fledged quantum *** said,we will be in the noisy-intermediate scale quantum(NISQ)era for a long time,working on dozens or even thousands of qubits quantum computing *** outstanding challenge,then,is to come up with an application that can reliably carry out a nontrivial task of interest on the near-term quantum devices with non-negligible quantum *** address this challenge,several near-term quantum computing techniques,including variational quantum algorithms,error mitigation,quantum circuit compilation and benchmarking protocols,have been proposed to characterize and mitigate errors,and to implement algorithms with a certain resistance to noise,so as to enhance the capabilities of near-term quantum devices and explore the boundaries of their ability to realize useful ***,the development of near-term quantum devices is inseparable from the efficient classical sim-ulation,which plays a vital role in quantum algorithm design and verification,error-tolerant verification and other *** review will provide a thorough introduction of these near-term quantum computing techniques,report on their progress,and finally discuss the future prospect of these techniques,which we hope will motivate researchers to undertake additional studies in this field.

关键词： quantum computing noisy-intermediate scale quantum variational quantum algorithms error mitigation circuit com-pilation benchmarking protocols classical simulation

Immediate implantation of ultrafine fiber slow-release system based on cell electrospinning to induce osteogenesis of mesenchymal stem cells

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Regenerative Biomaterials 2024年第2期3卷 76-87页

作者： Tao lu long Yang Zhuoyang Li Yin Liu Shun'en Xu Chuan Ye Department of Orthopaedics The Affliated Hospital of Guizhou Medical UniversityGuiyang 550004China Department of Orthopaedics The First People's Hospital of GuiyangGuiyang 550004China Center for Tissue Engineering and Stem Cell Research Guizhou Medical UniversityGuiyang 550004China Department of Otolaryngology Head and Neck Surgery Xinqiao HospitalArmy Medical University(Third Military Medical University)Chongqing 400037China Department of Dental implant Stomatological Hospital of GuiyangGuiyang 550000China

This study presents the development and evaluation of a poly(3-hydroxybutyrate-co-4-hydroxybutyrate)(P34HB)ultrafine fiber slow-release system for in vivo osteogenic induction of human umbilical cord mesenchymal stem cells(HUCMSCs).Utilizing dual-nozzle and cell electrospinning techniques,the system encapsulates L-ascorbic acid-2-phosphate magnesium(AsP),βB-glycerophosphate sodium and dexamethasone(DEX)within the'fbers,ensuring sustained osteogenic *** scaffold's morphology,characterization,hydrophilicity,mechanical properties and cellular behavior were *** subcutaneous implantation in rabbits was con-ducted to observe its ectopic osteogenic induction *** fabricated P34HB ultrafine fiber slow-release *** ization *** distribution of HUCMSCs and inducing components within the scaffold,with no chemical reactions affecting the active *** vitro tests showcased a prolonged release of DEX and ASP,while biocompatibility assays highlighted the scaffold's suitability for cellular *** Red,type I collagen,and osteopontin(OPN)staining verifed the scaffold's potent osteogenic induction effect on ***,immediate implantation into New Zealand White rabbits led to significant new bone formation within 8 *** findings underscore the system's potential for immediate in vivo implantation without prior in vitro induction,marking a promising advancement in bone tissue engineering.

关键词： bone tissue engineering cell electrospinning in vivo induction immediate implantation biomaterials

不同方法对季铵盐类消毒湿巾消毒效果评价的比较

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中国消毒学杂志 2024年第2期41卷 84-87页

作者：陆龙喜谢中艺王春蔡冉陆烨林军明李晔浙江省疾病预防控制中心浙江杭州310051 宁波海关技术中心

目的观察不同试验方法对季铵盐类消毒湿巾消毒效果的评价。方法用含苯扎氯铵2060 mg/L的溶液浸渍制备消毒湿巾,其挤出液苯扎氯铵为1800 mg/L。采用悬液定量杀菌试验、载体定量杀菌试验、湿巾载体定量杀菌试验、现场消毒试验等方法对季... 详细信息

目的观察不同试验方法对季铵盐类消毒湿巾消毒效果的评价。方法用含苯扎氯铵2060 mg/L的溶液浸渍制备消毒湿巾,其挤出液苯扎氯铵为1800 mg/L。采用悬液定量杀菌试验、载体定量杀菌试验、湿巾载体定量杀菌试验、现场消毒试验等方法对季铵盐类消毒湿巾的消毒效果进行综合评价。结果湿巾挤出液对悬液内指示细菌(大肠埃希菌、铜绿假单胞菌、金黄色葡萄球菌)作用1 min,杀灭对数值(KL)均>5.00,对白色念珠菌作用1 min,KL>4.00;湿巾挤出液对布片载体上的指示细菌作用5 min,KL均值分别为3.18、3.28和3.12,对布片载体上的白色念珠菌作用10 min,KL均值为1.22。湿巾载体对TPS与等量3%有机干扰物配制的指示细菌溶液作用3 min,KL值分别为3.53、3.86和3.42,对白色念珠菌作用10 min,KL值为2.89;湿巾载体对PBS配制的指示细菌悬液作用1 min,KL均值分别为3.92、5.30和3.80,对白色念珠菌作用3 min,KL均值为3.22。湿巾擦拭对桌面自然菌的KL值>1.00。结论不同的试验方法结果差异较大,根据消毒湿巾的实际使用情况,建议采用湿巾载体定量杀菌试验、现场消毒试验来综合评价消毒效果。

关键词：季铵盐消毒湿巾杀菌效果

Sustainability and environmental enhancement in changing circumstances

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Journal of Environmental Sciences 2007年第4期19卷 469-469页

作者： lu Yong-long SHI Ya-juan Research Center for Eco-Environmental Sciences Chinese Academy of Sciences Beijing 100085 China

Natural environment has endured fast economic growth and population explosion since the 20th century, which has brought a lot of problems. Global environmental change, soil erosion, land desertification, ozone layer depletion, bio-diversity reduction and persistent toxic and harmful pollutants are among the major environmental challenges.

关键词： In Sustainability and environmental enhancement in changing circumstances