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Rapid preparation of carbon-supported ruthenium nanoparticles by magnetic induction heating for efficient hydrogen evolution reaction in both acidic and alkalinemedia

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SusMat 2022年第3期2卷 335-346页

作者： Qiming Liu Bingzhang Lu Forrest Nichols Jeffrey Ko rene Mercado Frank bridges Shaowei Chen Department of Chemistry and Biochemistry University of CaliforniaSanta CruzCaliforniaUSA Department of Physics University of CaliforniaSanta CruzCaliforniaUSA

Ruthenium has been hailed as a competitive alternative for platinum toward hydrogen evolution reaction(HeR),a critical process in electrochemical water *** this study,we successfully prepare metallic Ru nanoparticles supported on carbon paper by utilizing a novel magnetic induction heating(MIH)*** samples are obtained within seconds,featuring a Cl-enriched surface that is unattainable via conventional thermal *** best sample within the series shows a remarkable HeR activity in both acidic and alkaline media with an overpotential of only-23 and-12 mV to reach the current density of 10 mA/cm^(2),highly comparable to that of the Pt/C *** studies based on density functional theory show that the excellent electrocatalytic activity is accounted by the surface metal-Cl species that facilitate charge transfer and downshift the d-band *** from this study highlight the unique advantages of MIH in rapid sample preparation,where residual anion ligands play a critical role in manipulating the electronic properties of the metal surfaces and the eventual electrocatalytic activity.

关键词： Cl-enriched surface density functional theory hydrogen evolution reaction magnetic induction heating ruthenium

Neoadjuvant therapy for resectable pancreatic ductal adenocarcinoma: The need for patient-centered research

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World Journal of Gastroenterology 2020年第4期26卷 375-382页

作者： Jordan M Cloyd Allan Tsung John Hays Celia e Wills John FP bridges Department of Surgery The Ohio State University Wexner Medical CenterColumbusOH 43210United States Department of Internal Medicine The Ohio State UniversityColumbusOH 43210United States College of Nursing The Ohio State UniversityColumbusOH 43210United States Department of Biomedical Informatics The Ohio State UniversityColumbusOH 43210United States

Pancreatic ductal adenocarcinoma is an aggressive cancer with high recurrence rates following surgical *** adjuvant chemotherapy improves survival,a significant proportion of patients are unable to initiate or complete all intended therapy following pancreatectomy due to postoperative complications or poor performance *** administration of chemotherapy prior to surgical resection is an alternative strategy that ensures its early and near universal delivery as well as improves margin-negative resection rates and potentially improves long-term survival *** therapy is increasingly being recommended to patients with pancreatic ductal adenocarcinoma,however,patient-centered research on its use is *** this review,we highlight opportunities to focus research efforts in the domains of patient preferences,patient-reported outcomes,patient experience,and *** research in these areas may identify relevant barriers and facilitators to the use of neoadjuvant therapy thereby increasing its utilization,improve shareddecision making for patients and providers,and optimize the experience of those undergoing neoadjuvant therapy.

关键词： Preoperative therapy Pancreatic ductal adenocarcinoma Quality of life Shared decision making Patient preferences

Low-loss and polarization insensitive 32×4 optical switch for ROADM applications

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Light(Science & Applications) 2024年第5期13卷 875-884页

作者： Xiaotian Zhu Xiang Wang Yanlu Huang Liyan Wu Chunfei Zhao Mingzhu Xiao Luyi Wang Roy Davidson Yanni Ou Brent e.Little Sai T.Chu Department of Physics City University of Hong KongTat Chee AvenueHong KongChina. QXP Technologies Inc. NO.15th Shanglinyuan 1st RoadXi’anShaanxi 710119China. State Key Laboratory of Information of Photonics and Optical Communications School of Electronic EngineeringBeijing University of Posts and TelecommunicationsBeijing 100876China

Integrated switches play a crucial role in the development of reconfigurable optical add-drop multiplexers(ROADMs)that have greater flexibility and compactness,ultimately leading to robust single-chip *** decades of research on switches with various structures and platforms,achieving a balance between dense integration,low insertion loss(IL),and polarization-dependent loss(PDL)remains a significant *** this paper,we propose and demonstrate a 32×4 optical switch using high-index doped silica glass(HDSG)for ROADM *** switch is designed to route any of the 32 inputs to the express ports or drop any channels from 32 inputs to the target 4 drop ports or add any of the 4 ports to any of the 32 express *** switch comprises 188 MachZehnder Interferometer(MZI)type switch elements,88 optical vias for the 44 optical bridges,and 618 waveguidewaveguide crossings with three-dimensional(3D)*** 1550 nm,the fiber-to-fiber loss for each express channel is below 2 dB,and across the C and L bands,below 3 *** each input channel to all 4 drop/add channels at 1550 nm,the loss is less than 3.5 dB and less than 5 dB across the C and L *** PDLs for all express and input channels to the 4 drop/add channels are below 0.3 dB over the C band,and the crosstalk is under−50 dB for both the C and L bands.

关键词： polarization ROADM optical

Separations of Metal Ions Using Ionic Liquids: The Challenges of Multiple Mechanisms

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Tsinghua Science and Technology 2006年第2期11卷 188-193页

作者： Violina A. Cocalia John D. Holbrey Keith e. Gutowski Nicholas J. bridges Robin D. Rogers Department of Chemistry and Center for Green Manufacturing The University of Alabama Tuscaloosa AL 35487 USA

Ionic liquids are a distinct sub-set of liquids, comprising only of cations and anions, often with negligible vapor pressure. As a result of the low or non-volatility of these fluids, ionic liquids are often considered in liquid/liquid separation schemes where the goal is to replace volatile organic solvents. Unfortunately, it is often not yet recognized that the ionic nature of these solvents can result in a variety of extraction mechanisms, including solvent ion-pair extraction, ion exchange, and simultaneous combinations of these. This paper discusses current ionic liquid-based separations research where the effects of the nature of the solvent ions, ligands, and metal ion species were studied in order to be able to understand the nature of the challenges in utilizing ionic liquids for practical applications.

关键词： metal ion liquid-liquid separation ionic liquid solvent extraction

Characteristics of aggregated chondrules and reclassification of Boxian meteorites

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Chinese Science Bulletin 1999年第S2期44卷 118-120页

作者： John C. bridges Robert Hutchison Department of Mineralogy Natural History Museum London SW7 5BD UK

CHONDRULeS are the major constituent of chondrites, but the nature of their origin remains elusive. Models based on nebular settings have attracted much support since Wood suggested that they formed there ascondensates. Subsequently, the melting of dust in the nebula has been widely invoked. Recently,however, models suggesting that chondrules formed in parent body regoliths have been revived, couldhelp to explain the coexistence of chondrules with chemically differentiated clasts The Boxian meteorite is a fall and was originally described as L4. The widely quoted classification of the chondrite is LL4. In this study, 362 chondrules were separated from the Boxian meteorite,and were measured for their grain sizes, masses and morphologies. 101 of these chondrules were successfully split and parts of them made into polished blocks; the remaining segments were individually set asidefor future oxygen isotopic analyses. Mineralogical investigation of the 101 chondrules was performed

关键词： characteristics reclassification Boxian meteorites.

Spatio-temporal analysis of flowering using Li DAR topography

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Journal of Geographical Sciences 2017年第1期27卷 62-78页

作者： HART Samantha MIKHAILOVA elena POST Christopher Mc MILLAN Patrick SHARP Julia bridges William Department of Forestry and environmental Conservation Clemson University SC 29634 USA Department of Mathematical Sciences Clemson University SC 29634 USA

Spatio-temporal patterns of flowering in forest ecosystems are hard to quantify and monitor. The objectives of this study were to investigate spatio-temporal patterns（e.g. soilssimple slope classesslope aspectand flow accumulation） of flowering around Lake IssaqueenaSouth Carolina（SCUSA） using plant-flowering database collected with GPS- enabled camera（stored in Picasa 3 web albums and project website） on a monthly basis in 2012 and Li DAR-based topography. Pacolet fine sandy loam had the most flowering plantsfollowed by Madison sandy loamboth dominant soil types around the lake. Most flowering plants were on moderately steep（17%–30%） and gently sloping（4%–8%） slopes. Most flowering plants were on west（247.5°–292.5°）southwest（202.5°–247.5°）and northwest（292.5°–337.5°） aspects. Most flowering plants were associated with minimum and maximum flows within the landscape. Chi-square tests indicated differences in the distributions of the proportions of flowering plants were significant by soil typeslopeaspectand flow accumulation for each month（February-November）for all months（overall）and across months. The Chi-square test on area-normalized data indicated significant differences for all months and individual differences by each month with some months not statistically significant. Cluster analysis on flowering counts for nine plant families with the most flowering counts indicated no unique separation by clusterbut implied that the majority of these families were flowering on strongly sloping（9%–16%） slopeson southwest（202.5°–247.5°） aspectsand low flow accumulation（0–200）. Presented methodology can serve as a template for future efforts to quantify spatio-temporal patterns of flowering and other phenological events.

关键词： aspect flow accumulation Geographic Information Systems(GIS) phenology soils

NASA Rover Touches Down on Mars

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当代外语研究 2004年第2期 2-4页

作者： ANDReW bridges 沈洁如

[提示]新年伊始,大洋彼岸传来令人欣喜的消息,美国的勇气号宇宙飞船在火星成功登陆,发回了久盼的信息。2004年1月4日中午12时30分左右,"勇气号"着陆成功。去年6月10日,"勇气号"从美国卡纳维拉尔角空军基地发射升空,在运载火箭的推动下... 详细信息

[提示]新年伊始,大洋彼岸传来令人欣喜的消息,美国的勇气号宇宙飞船在火星成功登陆,发回了久盼的信息。2004年1月4日中午12时30分左右,"勇气号"着陆成功。去年6月10日,"勇气号"从美国卡纳维拉尔角空军基地发射升空,在运载火箭的推动下,它在206个昼夜中完成长达4.8亿公里的星际旅行。然而。

关键词： NASA Rover Touches Down on Mars 勇气号火星车

The Beijing Olympics and Hong Kong Sporting Culture

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The Beijing Olympics and Hong Kong Sporting Culture

THe BeIJING OLYMPICS AND HONG KONG SPORTING CULTURe

文明的和谐与共同繁荣：对人类文明方式的思考——北京论坛（2006）

作者： Brian bridges Lingnan University

In recent decades the Olympic Games have become mega sports events watched by millions around the world and there is little doubt that the 2008 Beijing Olympics will follow within that *** International Olympic Committee(IOC) reports show that the preparations for the 2008 Olympics are well-advanced and there is little doubt that the event will be a

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THE BEIJING OLYMPICS AND HONG KONG SPORTING CULTURE