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Polyacrylate modified Cu electrode for selective electrochemical CO_(2) reduction towards multicarbon products

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Science Bulletin 2024年第15期69卷 2395-2404页

作者： Yuchuan Shi Kaini Zhang chung-Li Dong Ta Thi Thuy Nga Miao Wang Daixing Wei Jialin Wang Yiqing Wang Shaohua Shen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi’an Jiaotong UniversityXi’an 710049China Department of Physics Tamkang UniversityNew Taipei City 25137China

highly selective production of value-added multicarbon(C^(2+))products via electrochemical CO_(2) reduction reaction(eCO_(2)RR)on polycrystalline copper(Cu)remains ***,the facile surface modification using poly(α-ethyl cyanoacrylate)(PECA)is presented to greatly enhance the C^(2+)selectivity for eCO_(2)RR over polycrystalline Cu,with Faradaic efficiency(FE)towards C^(2+)products increased from30.1%for the Cu electrode to 72.6%for the obtained Cu-PECA electrode at-1.1 V *** hydrogen electrode(RhE).Given the well-determined FEs towards C^(2+)products,the partial current densities for C^(2+)production could be estimated to be-145.4 mA cm~(-2)for the Cu-PECA electrode at-0.9 V *** in a homemade flow ***-situ spectral characterizations and theoretical calculations reveal that PECA featured with electron-accepting-C≡N and-COOR groups decorated onto the Cu electrode could inhibit the adsorption of^(*)h intermediates and stabilize the^(*)CO intermediates,given the redistributed interfacial electron density and the raised energy level of d-band center(E_(d))of Cu active sites,thus facilitating the C-C coupling and then the C^(2+)selective *** study is believed to be guidable to the modification of electrocatalysts and electrodes with polymers to steer the surface adsorption behaviors of reaction intermediates to realize practical eCO_(2)RR towards value-added C^(2+)products with high activity and selectivity.

关键词： Electrochemical CO_(2)reduction Polymer modification Electron transfer C_(2+)products

Separation and Characterization of Nitrogen-Rich Components in Coker Gas Oils from Athabasca Bitumen

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Petroleum Science 2004年第3期1卷 72-77页

作者：许志明赵锁奇 J.R.Woods L.S.Kotlyar K.hchung 石油大学重质油国家重点实验室中国北京昌平102200 加拿大国家研究院化工过程与环境技术研究所加拿大合成油公司埃德蒙顿研究中心

It is well known that gas oils from oilsands bitumen are difficult to hydrotreat. In order to develop the most appropriate flow sheet and operating conditions, a thorough knowledge of the molecular structure and behaviour of bitumen and its gas oil products is needed. In this work, the gas oil samples are fractionated in an attempt to isolate and identify the problematic molecular species for hydrotreating. It is found that the major nitrogen sources in coker gas oils are associated with relatively small pentane insoluble species and an even smaller, highly polar, hexane insoluble species. Structural information obtained for these fractions indicates that they are formed during the cracking of resin molecules. Nitrogen speciation shows that the pyrroles are the primary nitrogen type, with pyridines also being an important species. Both nitrogen species are undesirable in the hydrotreating process. Pyrroles in particular are subject to polymerisation, producing gums and sediments that foul filters and other equipment while pyridines can directly deactivate the hydrotreating catalyst.

关键词： Coker gas oil pentane insoluble hexane insoluble separation characterization

Chalcogen heteroatoms doped nickel-nitrogen-carbon single-atom catalysts with asymmetric coordination for efficient electrochemical CO_(2)reduction

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Chinese Journal of Catalysis 2024年第9期64卷 54-65页

作者： Jialin Wang Kaini Zhang Ta Thi Thuy Ng Yiqing Wang Yuchuan Shi Daixing Wei chung-Li Dong Shaohua Shen International Research Center for Renewable Energy State Key Laboratory of Multiphase Flow in Power EngineeringXi'an Jiaotong UniversityXi'an 710049ShaanxiChina Department of Physics Tamkang UniversityNew Taipei City 25137TaiwanChina

The electronic configuration of central metal atoms in single-atom catalysts(SACs)is pivotal in electrochemical CO_(2)reduction reaction(eCO_(2)RR).herein,chalcogen heteroatoms(e.g.,S,Se,and Te)were incorporated into the symmetric nickel-nitrogen-carbon(Ni-N4-C)configuration to obtain Ni-X-N3-C(X:S,Se,and Te)SACs with asymmetric coordination presented for central Ni *** these obtained Ni-X-N3-C(X:S,Se,and Te)SACs,Ni-Se-N3-C exhibited superior eCO_(2)RR activity,with CO selectivity reaching~98%at-0.70 V versus reversible hydrogen electrode(RhE).The Zn-CO_(2)battery integrated with Ni-Se-N3-C as cathode and Zn foil as anode achieved a peak power density of 1.82 mW cm-2 and maintained remarkable rechargeable stability over 20 ***-situ spectral investigations and theoretical calculations demonstrated that the chalcogen heteroatoms doped into the Ni-N4-C configuration would break coordination symmetry and trigger charge redistribution,and then regulate the intermediate behaviors and thermodynamic reaction pathways for eCO_(2)***,for Ni-Se-N3-C,the introduced Se atoms could significantly raise the d-band center of central Ni atoms and thus remarkably lower the energy barrier for the rate-determining step of*COOh formation,contributing to the promising eCO_(2)RR performance for high selectivity CO production by competing with hydrogen evolution reaction.

关键词： Electrochemical CO_(2)reduction reaction Chalcogen heteroatoms Single-atom catalysts Asymmetric coordination CO production

产前日粮碳水化合物来源和莫能菌素对经产奶牛围产期代谢和泌乳的影响

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中国畜牧兽医 2008年第10期35卷 95-95页

作者： Y.-h.chung 张春林

选用85头经产荷斯坦奶牛随机设计,评估产前碳水化合物来源及莫能菌素对围产期奶牛干物质采食量、血液参数和泌乳性能的影响。日粮处理按照2×2阶乘排列设计,包括传统的干奶料(CONV)和不含有草料纤维来源的干奶料(NFFS),补充或不补充330 ... 详细信息

选用85头经产荷斯坦奶牛随机设计,评估产前碳水化合物来源及莫能菌素对围产期奶牛干物质采食量、血液参数和泌乳性能的影响。日粮处理按照2×2阶乘排列设计,包括传统的干奶料(CONV)和不含有草料纤维来源的干奶料(NFFS),补充或不补充330 mg/d.头莫能菌素。CONV日粮包括70%的草料,NFFS日粮28%的草料用棉籽壳和大豆壳替代。在整个干奶期(产前60 d)饲喂试验日粮(CONV和NFFS)。在预期产犊日期之前的28 d开始每天追加一次莫能菌素直到分娩。分娩后,所有奶牛饲喂相同的泌乳期奶牛料。结果发现,在妊娠的最后28 d,与饲喂CONV日粮相比,饲喂NFFS产前日粮干物质采食量(15.8 vs 11.9 kg/d)、干物质采食量体重百分比(2.1%vs1.6%体重)、血糖(67.4 vs 64.6 mg/dl)和血清胰岛素浓度(0.59 vs 0.45 ng/ml)更高,非酯化脂肪酸浓度(185 vs 245μEq/L)较低。在泌乳的前56 d,产前ChO、莫能菌素或两者混合效应对平均产奶量或乳成分没有明显的影响。但随着时间的延长,产前碳水化合物来源有影响产奶量的趋势。产前28 d补给莫能菌素对围产期产奶量没有影响。产前日粮对产后干物质采食量、血糖、非酯化脂肪酸、胰岛素浓度或肝脏甘油三酯没有影响。研究结果表明,在干奶期日粮中用NFFS部分替换传统日粮碳水化合物提高或维持了产前干物质采食量,因此增强了分娩前代谢水平。产前更高的干物质采食量可能潜在增加泌乳早期的产奶量。

关键词：非草料纤维来源莫能菌素产前饲喂围产期代谢

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Robotic distal pancreatectomy versus conventional laparoscopic distal pancreatectomy： a comparative study for short-term outcomes

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Frontiers of Medicine 2015年第3期9卷 356-360页

作者： Eric C. h. Lai chung Ngai Tang Department of Surgery Pamela Youde Nethersole Eastern Hospital Chai Wan Hong Kong SAR China

Robotic system has been increasingly used in pancreatectomy. however, the effectiveness of this method remains uncertain. This study compared the surgical outcomes between robot-assisted laparoscopic distal pancreatectomy and conventional laparoscopic distal pancreatectomy. During a 15-year period, 35 patients underwent minimally invasive approach of distal pancreatectomy in our center. Seventeen of these patients had robot-assisted laparoscopic approach, and the remaining 18 had conventional laparoscopic approach. Their operative parameters and perioperative outcomes were analyzed retrospectively in a prospective database. The mean operating time in the robotic group （221.4 min） was significantly longer than that in the laparoscopic group （173.6 min）（P = 0.026）. Both robotic and conventional laparoscopic groups presented no significant difference in spleen-preservation rate （52.9% vs. 38.9%）（P = 0.505）, operative blood loss （100.3 ml vs. 268.3 ml）（P = 0.29）, overall morbidity rate （47.1% vs. 38.9%）（P = 0.73）, and post-operative hospital stay （11.4 days vs. 14.2 days）（P = 0.46）. Both groups also showed no perioperative mortality. Similar outcomes were observed in robotic distal pancreatectomy and conventional laparoscopic approach. however, robotic approach tended to have the advantages of less blood loss and shorter hospital stay. Further studies are necessary to determine the clinical position of robotic distal pancreatectomy.

关键词： distal pancreatectomy pancreatic neoplasm robotic surgery

Validity,Reliability,and Measurement Invariance of the Thai Smartphone Application-Based Addiction Scale and Bergen Social Media Addiction Scale

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International Journal of Mental health Promotion 2024年第4期26卷 293-302页

作者： Kamolthip Ruckwongpatr Chirawat Paratthakonkun Usanut Sangtongdee Iqbal Pramukti Ira Nurmala Kanokwan Angkasith Weena Thanachaisakul Jatuphum Ketchatturat Mark DGriffiths Yi-Kai Kao chung-Ying Lin Institute of Allied health Sciences College of MedicineNational Cheng Kung UniversityTainan701401Taiwan College of Sports Science and Technology Mahidol UniversityNakhon Pathom73170Thailand Department of Forensic Science Royal Police Cadet AcademyNakhon Pathom73110Thailand School of Computing Engineeringand Digital TechnologyTeesside UniversityMiddlesbroughUK Faculty of Nursing Universitas PadjadjaranWest Java45363Indonesia Division of health Promotion and Behavioral Sciences Faculty of Public HealthUniversitas AirlanggaSurabaya60115Indonesia Faculty of Education Chiang Mai UniversityChiang Mai50200Thailand Faculty of Education Khon Kaen UniversityKhon Kaen40002Thailand International Gaming Research Unit Psychology DepartmentNottingham Trent UniversityNottinghamNG14FQUK Division of Colorectal Surgery E-DA HospitalKaohsiung82445Taiwan College of Medicine National Cheng Kung UniversityTainan701401Taiwan Biostatistics Consulting Center National Cheng Kung University HospitalTainan701401Taiwan

Background:In recent years,there has been increased research interest in both smartphone addiction and social media addiction as well as the development of psychometric instruments to assess these ***,there is a lack of psychometric evaluation for instruments assessing smartphone addiction and social media addiction in *** present study evaluated the psychometric properties and gender measurement invariance of the Thai version of the Smartphone Application-Based Addiction Scale(SABAS)and Bergen Social Media Addiction Scale(BSMAS).Method:A total of 801 Thai university students participated in an online survey from January 2022 to July 2022 which included demographic information,SABAS,BSMAS,and the Internet Gaming Disorder Scale-Short Form(IGDS9-SF).Results:Confirmatory Factor Analyses(CFAs)found that both the SABAS and BSMAS had a one-factor *** demonstrated adequate psychometric properties of both instruments and also supported measurement invariance across ***,scores on the SABAS and BSMAS were correlated with scores on the ***:The results indicated that the SABAS and BSMAS are useful psychometric instruments for assessing the risk of smartphone addiction and social media addiction among Thai young adults.

关键词： Factor analysis smartphone addiction social media addiction smartphone application-based addiction scale bergen social media addiction scale psychometric validation

Nuclear mass predictions based on a deep neural network and finite-range droplet model(2012)

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Chinese Physics C 2024年第2期48卷 112-123页

作者：姚道驄梁豪兆李曉菁 Department of Physics The University of Hong KongHong Kong 999077China Department of Physics Graduate School of ScienceThe University of TokyoTokyo 113-0033Japan Interdisciplinary Theoretical and Mathematical Sciences Program(iThEMS) RIKENWako 351-0198Japan

A neural network with two hidden layers is developed for nuclear mass prediction,based on the finiterange droplet model(FRDM12).Different hyperparameters,including the number of hidden units,choice of activation functions,initializers,and learning rates,are adjusted explicitly and *** resulting mass predictions are achieved by averaging the predictions given by several different sets of hyperparameters with different regularizers and seed *** can provide not only the average values of mass predictions but also reliable estimations in the mass prediction *** overall root-mean-square deviations of nuclear mass are reduced from 0.603 MeV for the FRDM12 model to 0.200 MeV and 0.232 MeV for the training and validation sets,respectively.

关键词： nuclear mass machine learning deep neural network

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药剂防治麻葉岬及大麻象鼻虫的初步实验

中国昆虫学报 1950年第1期 68-71页

作者：锺啓谦魏鸿鈞齐瑞霖華北农業科學研究所

麻葉(虫甲)(Psylliodes attenuata Koch)俗称麻葉蚤,或麻跳蚤,被害的麻葉常成穿孔状以致生长不良。麻象鼻蟲(Xylinophorus mongolicus Faust)是为害大麻和洋麻、大豆、小麦、棉花、甜菜、粟等的害蟲。这两种害蟲,在华北和东北都有,都是... 详细信息

麻葉(虫甲)(Psylliodes attenuata Koch)俗称麻葉蚤,或麻跳蚤,被害的麻葉常成穿孔状以致生长不良。麻象鼻蟲(Xylinophorus mongolicus Faust)是为害大麻和洋麻、大豆、小麦、棉花、甜菜、粟等的害蟲。这两种害蟲,在华北和东北都有,都是麻类作物的大害;尤其麻葉(虫甲)在东北为害特别猖獗,而大麻象鼻蟲则在华北为害较重。这

关键词：大麻象鼻小盆麻类作物雨核

Dirac Oscillator Under the New Generalized Uncertainty Principle From the Concept Doubly Special Relativity

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Communications in Theoretical Physics 2019年第11期71卷 1301-1303页

作者： S.Sargolzaeipor h.hassanabadi W.S.chung Faculty of Physics Shahrood University of TechnologyShahroodIran Department of Physics and Research Institute of Natural Science College of Natural ScienceGyeongsang National UniversityJinju 660-701Korea

We discuss one-dimensional Dirac oscillator, by using the concept doubly special relativity. We calculate the energy spectrum by using the concept doubly special relativity. Then, we derive another representation that the coordinate operator remains unchanged at the high energy while the momentum operator is deformed at the high energy so that it may be bounded from the above. Actually, we study the Dirac oscillator by using of the generalized uncertainty principle version and the concept doubly special relativity.

关键词： Dirac equation generalized uncertainty principle doubly special relativity