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mOF-Like 3D Graphene-Based Catalytic membrane Fabricated by One-Step Laser Scribing for Robust Water Purification and Green Energy Production

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Nano-micro Letters 2022年第11期14卷 48-61页

作者： Xinyu Huang Liheng Li Shuaifei Zhao Lei Tong Zheng Li Zhuiri Peng Runfeng Lin Li Zhou Chang Peng Kan-Hao Xue Lijuan Chen gary J.Cheng Zhu Xiong Lei Ye School of Optical and Electronic Information and Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074People’s Republic of China Hubei Yangtze memory Laboratories Wuhan 430205People’s Republic of China Institute for Frontier materials Deakin UniversityGeelongVIC 3216Australia Key Laboratory of New Processing Technology for Nonferrous metal and materials(ministry of Education) Guangxi Key Laboratory of Optical and Electronic Materials and DevicesCollege of Materials Science and EngineeringGuilin University of TechnologyGuilin 541004People’s Republic of China College of Chemistry and materials Science Hunan Agricultural UniversityHunan 410128People’s Republic of China School of material Science and Engineering Hunan University of Science and TechnologyXiangtanHunan ProvincePeople’s Republic of China School of Industrial Engineering and Birck Nanotechnology Centre Purdue UniversityWest LafayetteIN 47907USA Institute of Environmental Research at Greater Bay Key Laboratory for Water Quality and Conservation of the Pearl River DeltaMinistry of EducationGuangzhou UniversityGuangzhou 510006GuangdongPeople’s Republic of China

Increasing both clean water and green energy demands for survival and development are the grand challenges of our ***,we successfully fabricate a novel multifunctional 3D graphene-based catalytic membrane(3D-GCm)with active metal nanoparticles(AmNs)loading for simultaneously obtaining the water purification and clean energy generation,via a“green”one-step laser scribing *** as-prepared 3D-GCm shows high porosity and uniform distribution with AmNs,which exhibits high permeated fluxes(over 100 L m^(−2) h^(−1))and versatile super-adsorption capacities for the removal of tricky organic pollutants from wastewater under ultra-low pressure-driving(0.1 bar).After adsorption saturating,the AmNs in 3D-GCm actuates the advanced oxidization process to self-clean the fouled membrane via the catalysis,and restores the adsorption capacity well for the next time membrane *** importantly,the 3D-GCm with the welding of laser scribing overcomes the lateral shear force damaging during the long-term ***,the 3D-GCm could emit plentiful of hot electrons from AmNs under light irradiation,realizing the membrane catalytic hydrolysis reactions for hydrogen energy ***“green”precision manufacturing with laser scribing technology provides a feasible technology to fabricate high-efficient and robust 3D-GCm microreactor in the tricky wastewater purification and sustainable clean energy production as well.

关键词： 3D graphene Laser scribing Catalytic membrane Water purification Hydrogen production

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Geomorphology and Environmental management of the Yellow River Source Zone

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Journal of mountain Science 2013年第4期10卷 628-631页

作者： BRIERLEY gary LI Xi-lai School of Environment University of Auckland Private Bag 92019Auckland New Zealand College of Agriculture and Animal Husbandry Qinghai University

Geologic,climatic and anthropogenic factors have fashioned the distinctive landscapes and ecosystems of the Yellow River source zone(Brierley and Huang2013;Figure1).Located at thenorth-east corner of the Qinghai-Tibet... 详细信息

关键词：黄河源区环境管理土地利用方式半干旱气候地貌生态系统生物多样性人为因素

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Laser-induced microjet-assisted ablation for high-quality microfabrication

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International Journal of Extreme manufacturing 2022年第3期4卷 122-130页

作者： Yang Guo Pei Qiu Shaolin Xu gary J Cheng School of mechatronics Engineering Harbin Institute of TechnologyHarbin 150001People’s Republic of China Department of mechanical and Energy Engineering Southern University of Science and TechnologyShenzhen 518055People’s Republic of China School of Industrial Engineering Purdue UniversityWest LafayetteIN 47906United States of America

Liquid-assisted laser ablation has the advantage of relieving thermal effects of common laser ablation processes, whereas the light scattering and shielding effects by laser-induced cavitation bubbles, suspended debris, and turbulent liquid flow generally deteriorate laser beam transmission stability, leading to low energy efficiency and poor surface quality. Here, we report that a continuous and directional high-speed microjet will form in the laser ablation zone if laser-induced primary cavitation bubbles asymmetrically collapse sequentially near the air-liquid interface under a critical thin liquid layer. The laser-induced microjet can instantaneously and directionally remove secondary bubbles and ablation debris around the laser ablation region, and thus a very stable material removal process can be obtained. The shadowgraphs of high-speed camera reveal that the average speed of laser-induced continuous microjet can be as high as 1.1 m sin its initial 500 μm displacement. The coupling effect of laser ablation, mechanical impact along with the collapse of cavitation bubbles and flushing of high-speed microjet helps achieve a high material removal rate and significantly improved surface quality. We name this uncovered liquid-assisted laser ablation process as laser-induced microjet-assisted ablation(LImJAA) based on its unique characteristics. High-quality microgrooves with a large depth-to-width ratio of 5.2 are obtained by LImJAA with a single-pass laser scanning process in our experiments. LImJAA is capable of machining various types of difficult-to-process materials with high-quality arrays of micro-channels, square and circle microscale through-holes. The results and disclosed mechanisms in our work provide a deep understanding of the role of laser-induced microjet in improving the processing quality of liquid-assisted laser micromachining.

关键词： liquid-assisted laser ablation laser-induced microjet cavitation bubbles laser microfabrication

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Evaluation of three-dimensional biofilms on antibacterial bonding agents containing novel quaternary ammonium methacrylates

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International Journal of Oral Science 2014年第2期6卷 77-86页

作者： Han Zhou michael D Weir Joseph m Antonucci gary E Schumacher Xue-Dong Zhou Hockin H K Xu Department of Endodontics Prosthodontics and Operative Dentistry University of Maryland Dental School Baltimore USA State Key Laboratory of Oral Diseases West China Hospital of Stomatology Sichuan University Biomaterials Group Biosystems and Biomaterials Division National Institute of Standards and TechnologyGaithersburg USA Dr. Anthony Volpe Research Center American Dental Association Foundation Gaithersburg USA Center for Stem Cell Biology & Regenerative medicine University of Maryland School of Medicine Baltimore USA Department of mechanical Engineering University of Maryland Baltimore County USA

Antibacterial adhesives are promising to inhibit biofilms and secondary caries. The objectives of this study were to synthesize and incorporate quaternary ammonium methacrylates into adhesives, and investigate the alkyl chain length effects on three-dimensional biofilms adherent on adhesives for the first time. Six quaternary ammonium methacrylates with chain lengths of 3, 6, 9, 12, 16 and 18 were synthesized and incorporated into Scotchbond multi-Purpose. Streptococcus mutans bacteria were cultured on resin to form biofilms. Confocal laser scanning microscopy was used to measure biofilm thickness, live/dead volumes and live-bacteria percentage vs. distance from resin surface. Biofilm thickness was the greatest for Scotchbond control; it decreased with increasing chain length, reaching a minimum at chain length 16. Live-biofilm volume had a similar trend. Dead-biofilm volume increased with increasing chain length. The adhesive with chain length 9 had 37% live bacteria near resin surface, but close to 100% live bacteria in the biofilm top section. For chain length 16, there were nearly 0% live bacteria throughout the three-dimensional biofilm. In conclusion, strong antibacterial activity was achieved by adding quaternary ammonium into adhesive, with biofilm thickness and live-biofilm volume decreasing as chain length was increased from 3 to 16. Antibacterial adhesives typically only inhibited bacteria close to its surface; however, adhesive with chain length 16 had mostly dead bacteria in the entire three-dimensional biofilm. Antibacterial adhesive with chain length 16 is promising to inhibit biofilms at the margins and combat secondary caries.

关键词： alkyl chain length antibacterial bondingagent dental caries quaternaryammonium methacrylate Streptococcusmutans three-dimensional biofilm

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Electrocardiographic measures of repolarization dispersion and their relationships with echocardiographic indices of ventricular remodeling and premature ventricular beats in hypertension

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Journal of Geriatric Cardiology 2017年第12期14卷 717-724页

作者： Ana Ciobanu gary Tse Tong Liu maria V Deaconu Gabriela S Gheorghe Adriana m Iliesiu Ioan T Nanea Department of Internal medicine and Cardiology Theodor Burghele Clinical Hospital Carol Davila University of Medicine and Pharmacy Bucharest Romania Department of medicine and Therapeutics Faculty of Medicine Chinese University of Hong Kong Hong Kong China Li Ka Shing Institute of Health Sci- ences Faculty of Medicine Chinese University of Hong Kong Hong Kong China Tianjin Key Laboratory of Ionic-molecular Function of Cardiovascular disease Department of Cardiology Tianjin Institute of Cardiology Second Hospital of Tianjin Medical University Tianjin China

ObjectiveTo 检验在 T 山峰- T 结束间隔( Tpe )和有室的早熟的敲击( VPB )并且在 *** 的左室的改变的出现的 Tpe/QT 比率 52 总计病人与对中等必要高血压温和被包括，经历监视的 echocardiography 和24小时的 Holter 。室的改变被 tr... 详细信息

ObjectiveTo 检验在 T 山峰- T 结束间隔( Tpe )和有室的早熟的敲击( VPB )并且在 *** 的左室的改变的出现的 Tpe/QT 比率 52 总计病人与对中等必要高血压温和被包括，经历监视的 echocardiography 和24小时的 Holter 。室的改变被 transmitral E 和 A 波浪速度和 E/A 比率被左室的集体索引(LVmI ) 用 Devereux 公式和心脏舒张的功能估计。Tpe 处于心前区的领先被测量。T 波浪的结束被正切的方法在领先 V 2 设为 T *** 和 Tpe/QT 的最陡峭的下降斜坡(r = 0.33， P = 0.01；r = 0.27， P = 0.04 分别地) 并且 V 3(r = 0.40， P = 0.002；r = 0.40， P = 0.003，分别地) 与 LVmI 显著地相关。一种重要反的关系在 E/A 比率和 QT 之间被观察(r = 0.33， P = 0.01 ) ，在 V 3 的 Tpe (r = 0.39， P = 0.003 ) 并且在 V 3 的 Tpe/QT (r = 0.31， P = 0.02 ) 。在 V 3, V 5,平均数 Tpe 的 Tpe 和有 60 ms ， 59 ms ， 62 ms 和 71 ms 的截止价值的最大的 Tpe ，分别地与左室的心脏舒张的功能和表演的 LVmI 和索引与室的早熟的 *** 极化参数 Tpe 间隔和 Tpe/QT 比率相互关联的出现联系了更好预兆的值比象 QT 那样的传统的参数间隔和 QT 分散。铅 V 3 是为测量 Tpe 和 Tpe/QT 的最好的铅。这些 ECG 索引能因此在临床的实践被使用监视改变的 LV 并且预言 VPB 的出现。

关键词：极化参数高血压索引早熟分散 Holter Tpe 参数显示

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Trends of Regional Precipitation and Their Control mechanisms during 1979–2013

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Advances in Atmospheric Sciences 2016年第2期33卷 164-174页

作者： Run LIU shaw Chen LIU Chein-Jung SHIU Jun LI Yuanhang ZHANG State Key Joint Laboratory of Environmental Simulation and Pollution Control College of Environmental Sciences and Engineering Peking University Research Center for Environmental Changes Academia Sinica Department of Atmospheric Science NCU

Trends in precipitation are critical to water resources. Considerable uncertainty remains concerning the trends of regional precipitation in response to global warming and their controlling mechanisms. Here, we use an interannual difference method to derive trends of regional precipitation from GPCP （Global Precipitation Climatology Project） data and mERRA （modern- Era Retrospective Analysis for Research and Applications） reanalysis in the near-global domain of 60~ S-60~N during a major global warming period of 1979-2013. We find that trends of regional annual precipitation are primarily driven by changes in the top 30% heavy precipitation events, which in turn are controlled by changes in precipitable water in response to global warming, i.e., by thermodynamic processes. Significant drying trends are found in most parts of the U.S. and eastern Canada, the middle East, and eastern South America, while significant increases in precipitation occur in northern Australia, southern Africa, western India and western China. In addition, as the climate warms there are extensive enhancements and expansions of the three major tropical precipitation centers-the maritime Continent, Central America, and tropical Africa-leading to the observed widening of Hadley cells and a significant strengthening of the global hydrological cycle.

关键词： regional precipitation global warming water resources

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Critical flow-storm approach to total maximum daily load (TmDL) development:an analytical conceptual model

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Frontiers of Environmental Science & Engineering 2008年第3期2卷 267-273页

作者： Harry X.ZHANG shaw L.YU CH2m HILL 15010 Conference Center DriveChantillyVA 20151–3801USA Department of Civil and Environmental Engineering Thornton HallUniversity of VirginiaCharlottesvilleVA 22904–4742USA

One of the key challenges in the total maximum daily load(TmDL)development process is how to define the critical condition for a receiving *** main concern in using a continuous simulation approach is the absence of any guarantee that the most critical condition will be captured during the selected representative hydrologic period,given the scarcity of long-term continuous *** objectives of this paper are to clearly address the critical condition in the TmDL development process and to compare continuous and event-based approaches in defining critical condition during TmDL development for a waterbody impacted by both point and nonpoint source pollution.A practical,event-based critical flow-storm(CFS)approach was developed to explicitly addresses the critical condition as a combination of a low stream flow and a storm event of a selected magnitude,both having certain frequencies of *** paper illustrated the CFS concept and provided its theoretical basis using a derived analytical conceptual *** CFS approach clearly defined a critical condition,obtained reasonable results and could be considered as an alternative method in TmDL development.

关键词： critical condition critical flow-storm(CFS)approach total maximum daily load(TmDL) conceptual model derived analytical model nonpoint source pollution

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Crocodile blood supplementation protect svascular function in diabetic mice

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Food Production, Processing and Nutrition 2021年第1期3卷 283-295页

作者： Chui Yiu Bamboo Chook Francis m.Chen gary Tse Fung Ping Leung Wing Tak Wong School of Life Sciences Faculty of ScienceThe Chinese University of Hong KongShatinNTHong Kong SAR State Key Laboratory of Agrobiotechnology The Chinese University of Hong KongHong KongChina

Cardiovascular disease is a major cause of mortality in diabetic patients due to the heightened oxidative stress and pro-inflammatory state in vascular *** approaches targeting cardiovascular health for diabetic patients are urgently *** blood,an emerging dietary supplement,was suggested to have anti-oxidative and anti-inflammatory effects in vitro,which have yet to be proven in animal *** study thereby aimed to evaluate whether crocodile blood can protect vascular function in diabetic mice against oxidation and *** db/db mice and their counterparts db/m+mice were treated daily with crocodile blood soluble fraction(CBSF)or vehicle via oral gavage for 4 weeks before their aortae were harvested for endothelium-dependent relaxation(EDR)quantification using wire myograph,which is a well-established functional study for vascular function *** culture experiments culturing mouse aortae from C57BL/6 J mice with or without IL-1βand CBSF were done to evaluate the direct effect of CBSF on endothelial *** oxygen species(ROS)levels in mouse aortae were assessed by dihydroethidium(DHE)staining with inflammatory markers in endothelial cells quantified by quantitative polymerase chain reaction(qPCR).CBSF significantly improved deteriorated EDR in db/db diabetic mice through both diet supplementation and direct culture,with suppression of ROS level in mouse *** also maintained EDR and reduced ROS levels in mouse aortae against the presence of pro-inflammatory IL-1β.Under the pro-inflammatory state induced by IL-1β,gene expressions of inflammatory cytokines were downregulated,while the protective transcripts UCP2 and SIRT6 were upregulated in endothelial *** study suggests a novel beneficial effect of crocodile blood on vascular function in diabetic mice and that supplementation of diet with crocodile blood may act as a complementary approach to protect against vascular diseases through anti

关键词： Crocodile blood Diabetes mellitus Vascular endothelial function Anti-oxidative Anti-inflammatory

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Organizational behaviour : 6th ed.

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2005年

作者： gary Johns Alan m. Saks.

来源：畅想之星图书光盘版（南... 评论

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Does Acute Improvement in muscle Recovery with Curcumin Supplementation Translate to Long-Term Training?

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Journal of Science in Sport and Exercise 2019年第3期1卷 203-207页

作者： Brian K.mcFarlin Elizabeth A.Tanner melody A.gary Asheal A.Davis Erin m.Bowman Richard S.gary Applied Physiology Laboratory University of North TexasPhysical Education BuildingRoom 2091921 Chestnut StreetDentonTX 76201USA Department of Biological Sciences University of North TexasDentonTXUSA

Dietary polyphenols,such as curcumin,green tea catechins,and pomegranate extract,may have the ability to enhance the effectiveness of long-term training programs by managing training-induced *** recovery may translate to increased capacity to train and perform more *** dietary polyphenol curcumin has been reported to block the action of COX-2 and NF-kB signaling and would allow for increased capacity to train leading to heightened adaptations and the potential for ergogenic *** actions are very similar to the targeted actions of non-steroidal anti-inflammatory drugs(NSAIDs),but without the side-effects of *** review will compare and contrast the known effects of cur-cumin and identify common design elements between existing *** this critical review of the existing literature it is our goal to establish a set of best practices that could be applied to an athletic population that is interested in using oral curcumin supplementation as a recovery agent.

关键词： Exercise-induced muscle injury Inflammatory cytokines Inflammation Soreness Distance running Exercise training

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