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Variation in copper and zinc tolerance and accumulation in 12 willow clones： implications for phytoextraction

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2014年第9期15卷 788-800页

作者： Wei-dong YANG Yu-yan WANG Feng-liang ZHAO Zhe-li DING xin-cheng zhang Zhi-qiang ZHU Xiao-e YANG Ministry of Education Key Laboratory of Environmental Remediation and Ecological Health College of Environmental and Resource Sciences Zhejiang University Hangzhou 310058 China Environment and Plant Protection Institute Chinese Academy of Tropical Agricultural Sciences (CATAS) Danzhou Scientific Observation and Experimental Agro-Environment Station Ministry of Agriculture Danzhou 57173 7 China College of Agriculture Hainan University Haikou 570228 China

研究目的:柳树(Salix spp.)已广泛用于修复重金属污染,而且修复效率与树种及无性系有关。目前涉及柳树研究主要为铜(Cu)和锌(Zn)的毒性效应,而不是富集能力。本研究以中国常见的柳树无性系评价对Cu和Zn耐性与富集能力。创新要点:目前大... 详细信息

研究目的:柳树(Salix spp.)已广泛用于修复重金属污染,而且修复效率与树种及无性系有关。目前涉及柳树研究主要为铜(Cu)和锌(Zn)的毒性效应,而不是富集能力。本研究以中国常见的柳树无性系评价对Cu和Zn耐性与富集能力。创新要点:目前大多数研究仍集中Cu和Zn对柳树的毒性效应,尤其是Cu,对它们富集能力仍没有评价。中国为柳树的主要分布区。本文以12种优良的常见柳树无性系,通过温室营养液法评价对Cu和Zn耐性及富集潜力差异。利用柳树无性系的耐性与富集变异,旨在选择高耐性与高富集的无性系,提高环境修复效率和加快修复进程。研究方法:选择高生物量12种柳树无性系,采用温室营养液培养法添加Cu或Zn处理,测定生物量参数并计算耐性指数,估计耐性差异;用原子吸收法测定组织中金属浓度并计算金属位移系数,评价富集差异。重要结论:无性系对Cu和Zn耐性显著不同,生物量变化从无影响、抑制到促进生长。无性系对Cu耐性高于对Zn耐性,无性系对Zn富集变异幅度大于对Cu富集变异幅度。Cu主要富集于根部,而Zn较易运输到地上部分。总之测定的大部分柳树无性系为Cu与Zn高富集植物,显示出较高的植物提取能力。

关键词：柳树铜锌耐性与富集水培筛选

Repair of posterior ventricular septal rupture by right atrial approach

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Journal of Geriatric Cardiology 2023年第12期20卷 886-889页

作者： Shan-Qing BAO Teng-Long WANG Yuan-Hong LI cheng-xin zhang Department of Cardiovascular Surgery First Affiliated Hospital of Anhui Medical UniversityHefeiChina

Ventricular septal rupture(VSR)is a serious complication that may occur after myocardial infarction(MI).[1]If left untreated,it will lead to high morbidity and mortality.Although several surgical interventions have been developed,mortality and complications associated with surgical management are still high,especially in terms of transventricular approaches.[2]

关键词： rupture mortality ventricular

Postoperative hypoxemia for patients undergoing Stanford type A aortic dissection

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World Journal of Clinical Cases 2023年第14期11卷 3140-3147页

作者： Hai-Yuan Liu Shuai-Peng zhang cheng-xin zhang Qing-Yun Gao Yu-Yong Liu Sheng-Lin Ge Department of Cardiovascular Surgery The First Affiliated Hospital of Anhui Medical UniversityHefei 230022Anhui ProvinceChina First Affiliated Hospital of Anhui Medical University Anhui Medical UniversityHefei 230032Anhui ProvinceChina

Clinically,it is widely recognized that surgical treatment is the preferred and reliable option for Stanford type A aortic dissection.Stanford type A aortic dissection is an emergent and serious cardiovascular disease characterized with an acute onset,poor prognosis,and high mortality.However,the incidences of postoperative complications are relatively higher due to the complexity of the disease and its intricate procedure.It has been considered that hypoxemia,one of the most common postoperative complications,plays an important role in having a worse clinical prognosis.Therefore,the effective intervention of postoperative hypoxemia is significant for the improved prognosis of patients with Stanford type A aortic dissection.

关键词： Stanford type A aortic dissection Risk factors Intervention Mortality

Experimental Investigation on Vertical Hydraulic Transport of Ores in Deepsea Mining

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China Ocean Engineering 2024年第1期38卷 42-53页

作者： LIU Lei LIU Jian-cheng LI xin XU Li-xin zhang Xiu-zhan State Key Laboratory of Ocean Engineering Shanghai Jiao Tong UniversityShanghai 200240China School of Naval Architecture Ocean and Civil EngineeringShanghai Jiao Tong UniversityShanghai 200240China Sanya Yazhou Bay Institution of Deep-sea Sci-Tech Shanghai Jiao Tong UniversitySanya 572000China China Merchants Marine And Offshore Research Institute Co. Ltd.Shenzhen 518067China China Merchants Deepsea Research Institute(Sanya)Co. Ltd.Sanya 572000China School of Naval Architecture and Ocean Engineering Jiangsu University of Science and TechnologyZhenjiang 212100China

Deepsea mining has been proposed since the 1960s to alleviate the lack of resources on land.Vertical hydraulic transport of collected ores from the seabed to the sea surface is considered the most promising method for industrial applications.In the present study,an indoor model test of the vertical hydraulic transport of particles was conducted.A noncontact optical method has been proposed to measure the local characteristics of the particles inside a vertical pipe,including the local concentration and particle velocity.The hydraulic gradient of ore transport was evaluated with various particle size distributions,particle densities,feeding concentrations and mixture flow velocities.During transport,the local concentration is larger than the feeding concentration,whereas the particle velocity is less than the mixture velocity.The qualitative effects of the local concentration and local fluid velocity on the particle velocity and slip velocity were investigated.The local fluid velocity contributes significantly to particle velocity and slip velocity,whereas the effect of the local concentration is marginal.A higher feeding concentration and mixture flow velocity result in an increased hydraulic gradient.The effect of the particle size gradation is slight,whereas the particle density plays a crucial role in the transport.

关键词： deepsea mining vertical hydraulic transport experiment flow characteristics

Facile synthesis of high-brightness green-emitting carbon dots with narrow bandwidth towards backlight display

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Chinese Chemical Letters 2024年第5期35卷 277-282页

作者： Rui cheng Tingting zhang xin Huang Jian Yu State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 210009China

High-performance carbon dots(CDs)allowing the application in high-end display devices are highly desirable and usually limited by the absence of simple and easy synthesis methods.In this work,we exploited an easy-to-implement strategy for the one-step synthesis of green-emitting CDs(G-CDs)with superb optical properties.The G-CDs were synthesized using m-phenylenediamine(m-PD)as a single precursor,and the reaction reacted at 180℃for 12 h The resultant G-CDs exhibit high-purity and excitationindependent green fluorescence with the photoluminescence(PL)peak located at 516 nm,full width at half maximum(FWHM)of 46 nm,and PL quantum yield(QY)of∼80%under the 470nm excitation light.The G-CDs and corresponding composite film prepared with polyvinyl butyral(G-CDs@PVB)exhibit good PL stability after undergoing long-time storage for one year and 360 h exposure under 460nm blue light.The G-CDs@PVB film was used as color-conversion materials in green-emitting light-emitting diode(LED)application,exhibiting a Commission internationale de l’Eclairage(CIE)chromaticity coordinate of(0.21,0.44).The film was also used in CD-based liquid crystal display(CD-LCD)application,achieving a color gamut value of 85%.This work will offer a working basis for the synthesis of high-performance CDs as well as their application in displays.

关键词： Carbon dots One-step synthesis Narrow bandwidth High quantum yield Display

Modeling of LF refining process:a review

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Journal of Iron and Steel Research(International) 2024年第2期31卷 289-317页

作者： Zi-cheng xin Jiang-shan zhang Kai-xiang Peng Jun-guo zhang Chun-hui zhang Qing Liu State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing100083China School of Automation and Electrical Engineering University of Science and Technology BeijingBeijing100083China Tangshan Branch Hebei Iron and Steel Co.Ltd.Tangshan063000HebeiChina xinjiang Bayi Iron and Steel Co. Ltd.Baosteel GroupWulumuqi830022XinjiangChina

With the increasing demand for energy conservation and emission reduction,more attentions have been paid to the intelligentization,greenization and low carbonization during the transformation and upgrading of steelmaking plants.Ladle furnace(LF)refining is one of the key procedures in steelmaking process and has been widely used in steelmaking plants for its high equipment matching degree,low equipment investment and outstanding refining performance.According to the main tasks of LF refining process,the modeling methods of temperature prediction model,slag-making model,alloying model,argon blowing model and model of inclusions behavior were systematically reviewed,and the advantages and disadvantages of each modeling method were summarized.In addition,the technical framework for the future has also been proposed based on existing works,including classification of raw materials,graphic representation of knowledge,introduction,upgradation and management of device/equipment,customization of steelmaking,modeling of refining process,synergy of models,intelligentization of decision-making,automation of control,and digitization of processes and operations,aiming to provide a reference for the modeling and intelligent development of LF refining process.

关键词： LF refining Temperature prediction Slag-making Alloying Argon blowing Inclusion behavior Modeling method

Balancing act:The dilemma of rapid hyperglycemia correction in diabetes management

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World Journal of Diabetes 2024年第2期15卷 129-132页

作者： Ke-xin zhang cheng-Xia Kan Xiao-Dong Sun Department of Endocrinology and Metabolism Affiliated Hospital of Weifang Medical UniversityWeifang 261031Shandong ProvinceChina

The global diabetes surge poses a critical public health challenge,emphasizing the need for effective glycemic control.However,rapid correction of chronic hyperglycemia can unexpectedly trigger microvascular complications,necessitating a reevaluation of the speed and intensity of glycemic correction.Theories suggest swift blood sugar reductions may cause inflammation,oxidative stress,and neurovascular changes,resulting in complications.Healthcare providers should cautiously approach aggressive glycemic control,especially in long-standing,poorly controlled diabetes.Preventing and managing these complications requires a personalized,comprehensive approach with education,monitoring,and interdisciplinary care.Diabetes management must balance short and longterm goals,prioritizing overall well-being.This editorial underscores the need for a personalized,nuanced approach,focusing on equilibrium between glycemic control and avoiding overcorrection.

关键词： Diabetes Hyperglycemia correction Management Microvascular complications Glucose control

Effectiveness of Histopathological Examination of Ultrasound-guided Puncture Biopsy Samples for Diagnosis of Extrapulmonary Tuberculosis

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Biomedical and Environmental Sciences 2024年第2期37卷 170-177页

作者： GU Wen Fei SHI Xia MA xin YU Jun Lei XU Jin Chuan QIAN cheng cheng HU Zhi Dong zhang Hui Shanghai Public Health Clinical Center Fudan UniversityShanghai 201508China School of Laboratory Medicine and Life Science Wenzhou Medical UniversityWenzhou 325000ZhejiangChina Department of Laboratory Medicine Zhejiang Putuo HospitalZhoushan 316100ZhejiangChina Zhongshan Hospital Fudan UniversityShanghai 200032China

Objective To evaluate the diagnostic value of histopathological examination of ultrasound-guided puncture biopsy samples in extrapulmonary tuberculosis(EPTB).Methods This study was conducted at the Shanghai Public Health Clinical Center.A total of 115patients underwent ultrasound-guided puncture biopsy,followed by MGIT 960 culture(culture),smear,Gene Xpert MTB/RIF(Xpert),and histopathological examination.These assays were performed to evaluate their effectiveness in diagnosing EPTB in comparison to two different diagnostic criteria:liquid culture and composite reference standard(CRS).Results When CRS was used as the reference standard,the sensitivity and specificity of culture,smear,Xpert,and histopathological examination were(44.83%,89.29%),(51.72%,89.29%),(70.11%,96.43%),and(85.06%,82.14%),respectively.Based on liquid culture tests,the sensitivity and specificity of smear,Xpert,and pathological examination were(66.67%,72.60%),(83.33%,63.01%),and(92.86%,45.21%),respectively.Histopathological examination showed the highest sensitivity but lowest specificity.Further,we found that the combination of Xpert and histopathological examination showed a sensitivity of 90.80%and a specificity of 89.29%.Conclusion Ultrasound-guided puncture sampling is safe and effective for the diagnosis of EPTB.Compared with culture,smear,and Xpert,histopathological examination showed higher sensitivity but lower specificity.The combination of histopathology with Xpert showed the best performance characteristics.

关键词： Extrapulmonary tuberculosis Diagnosis Biopsy Histopathological examination Puncture samples

Enhanced thermoelectric and mechanical properties of Bi0.5Sb1.5Te3 alloy with dispersed yttrium oxide ceramic nanoparticles

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Rare Metals 2024年第4期43卷 1758-1768页

作者： Cun-cheng Li Ming-Wei zhang Ji-Wu xin Lei Wei Wen-Yu Zhao School of Materials Science and Engineering Shandong University of Technology School of Electrical and Electronic Engineering Nanyang Technological University State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology

Reducing thermal conductivity while avoiding adverse interfacial reactions during sintering is crucial for improving the thermoelectric performance of Bi2Te3-based composites.Inert ceramic nanoparticles are good candidates for achieving this goal.In this study,we designed and prepared a series of p-type Bi0.5Sb1.5Te3nanocomposites decorated with Y2O3ceramic nanoparticles via ball-milling dispersion and spark-plasma sintering.Owing to the chemical stability of the ceramics,no traces of atomic doping or interfacial reactions were observed.Transport measurements revealed that the Y2O3nanoparticles distributed along the grain boundaries acted as energy-dependent carrier-filtering centers to improve the scattering parameter and Seebeck coefficient,contributing to the elevated power factor even with a decreased electrical conductivity.Moreover,the incorporated Y2O3nanoparticles and various defect structures they induced effectively strengthened the phonon scattering and suppressed the lattice thermal conductivity.Consequently,a peak figure of merit（ZT） of 1.23 at 313 K was achieved for 0.4%Y2O3/Bi0.5Sb1.5Te3,which is 13% higher than that of the matrix.In addition,the Vickers hardness of the composite material was 35% higher than that of the matrix.This study demonstrates the effectiveness of ceramic nanoparticles in synergistic ally improving the thermoelectric and mechanical properties,which may be further extended to other thermoelectric systems.

关键词： Bi 0.5 Sb 1.5 Te 3 alloy Y 2 O 3 ceramic nanoparticles Microstructures Thermoelectric performance Mechanical properties