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| 1 | Enhancing both selectivity and coking-resistance of a single-atom Pd1/C3N4 catalyst for acetylene hydrogenation显示文摘选择加氢是在化学升级的一个重要工业催化过程,在因为他们的高加氢活动,基于 Pd 的催化剂广泛地被使用的地方。然而,因为重焦炭形成,差的选择和短催化剂一生是主要担心。在这个工作,原子地驱散 Pd 原子成功地在 graphitic 碳氮化物上被综合(g-C 3 用原子层免职的 N 4) 。没有 Pd nanoparticle (NP ) ,改正错误的高角度的环形的黑暗地的扫描传播电子显微镜学(HAADF 茎) 证实了孤立的 Pd 原子的主导的存在形成。在在过量乙烯的乙炔的选择加氢期间, g-C 3 N 4-supported Pd NP 催化剂比常规 Pd/Al 2 O 3 和 Pd/SiO 2 催化剂。在原处, X 光检查光致核裂变光谱学表明可观的费用从 Pd NP 转到 g-C 3 N 4 多半在催化表演改进起一个重要作用。更给人深刻印象地,单个原子的 Pd 1/C3 N 4 催化剂展出了两种更高的乙烯选择和更高的 coking 抵抗。我们的工作证明单个原子的 Pd 催化剂是在加氢反应改进选择和焦炭抵抗的一个有希望的候选人。 | Xiaohui Huang Yujia Xia Yuanjie Cao Xusheng Zheng Haibin Pan Junfa Zhu Chao Ma Hengwei Wang Junjie Li Rui You Shiqiang Wei Weixin Huang Junling Lu | 2017 | Nano Research2017,10,4: | 16 |
| 2 | Cu2O-Au Nanocomposites with Novel Structures and Remarkable Chemisorption Capacity and Photocatalytic Activity显示文摘在水的答案的 CuH nanoparticles 的分解成功地为 Cu2O nanoparticles 的准备作为一个新奇方法被开发了。特别地,我们发现在水的答案的 CuH nanoparticles 的分解能被 Au 胶体催化,形成 Cu2O-Au nanocomposites。产生 Cu2O-Au nanocomposites 的作文和结构被诱导地联合的血浆详细描绘了原子排放光谱学,粉末 X 光检查衍射, N2 吸附解吸附作用等温线,红外线的光谱学, X 光检查光电子光谱学,扫描电子显微镜学和传播电子显微镜学。他们向各种各样的染料分子的 visible-light-driven photocatalytic 活动也被调查了。取决于 Au : Cu 比率, Cu2O-Au nanocomposites 展览包括由多晶的 Cu2O,非结晶的 Cu2O 和 Au 组成的美丽的象花的 nanostructure 的不同新奇 nanostructures 胶体。我们建议 H2 的快产生的水泡在催化分解反应的功课期间驱使同时形成的 Cu2O 形成非结晶的弄弯的薄陪衬并且当装配的一个模板弄弯非结晶的 Cu2O,多晶的 Cu2O 和 Au 胶体的薄陪衬进一致 nanostructures,可能也行动。有 Cu 的 Cu2O-Au nanocomposite : 40 的 Au 比率向甲基橘子和酸橘子展出显著化学吸着能力和 visible-light-driven photocatalytic 活动 7 并且是有希望的化学吸着光催化综合催化剂。金属氢化物的催化分解可能与新奇 nanostructures 和性质为另外的金属 / 金属氧化物 nanocomposites 的制造开创一条新途径。 | Qing Hua Fucheng Shi Kai Chen Sujie Chang Yunsheng Ma Zhiquan Jiang Guoqiang Pan Weixin Huang | 2011 | Nano Research2011,4,10: | 3 |
| 3 | Enhanced Recovery After Surgery (ERAS) Program Attenuates Stress and Accelerates Recovery in Patients After Radical Resection for Colorectal Cancer: A Prospective Randomized Controlled Trial显示文摘 | Li Ren Dexiang Zhu Ye Wei Xiangou Pan Li Liang Jianmin Xu Yunshi Zhong Zhanggang Xue Ling Jin Shaokang Zhan Weixin Niu Xinyu Qin Zhaohan Wu Zhaoguang Wu | 2012 | World Journal of Surgery2012,,2: | 1 |
| 4 | Facile synthesis of mesoporous MnO 2 /C spheres for supercapacitor electrodes显示文摘 | Yanmei Pan Zhousheng Mei Zeheng Yang Weixin Zhang Bo Pei Hongxu Yao | 2013 | Chemical Engineering Journal2013,,: | 1 |
| 5 | Compact wide-beam circularly-polarized microstrip antenna with a parasitic ring for CNSS application显示文摘 | Pan Zekun Lin Weixin Chu Qingxin | 2014 | IEEE Transactions on Antennas and Propagation2014,62,5: | 1 |
| 6 | Characterization of high-affinity peptides and their feasibility for use in nanotherapeutics targeting leukemia stem cells显示文摘 | Hongyong Zhang Juntao Luo Yuanpei Li Paul T. Henderson Yanchun Wang Sebastian Wachsmann-Hogiu Weixin Zhao Kit S. Lam Chong-xian Pan | 2012 | Nanomedicine: Nanotechnology Biology and Medicine2012,,7: | 1 |
| 7 | Generating oxygen adatoms on Au(997) by thermal decomposition of NO_2显示文摘We report our investigation of the interaction of NO2 with the Au(997)vicinal surface by high-resolution photoelectron spectroscopy using synchrotron radiation as the excitation source.At 170 K,both core-level and valence-band photoemission results illustrate the decomposition of NO2 on the Au(997)surface at low NO2 exposures,forming coadsorbed NO(a)and O(a)species.After annealing at 300 K,NO(a)desorbs from Au(997)whereas O(a)remains on the surface.Upon annealing at 750 K,we observe no signal for adsorbed oxygen on Au(997).These results clearly demonstrate that thermal decomposition of NO2 is an effective method to generate oxygen adatoms on Au(997)under ultrahigh-vacuum conditions. | ZHANG YuLin WU ZongFang CHEN BoHao XU LingShun PAN HaiBin MA YunSheng JIANG ZhiQuan ZHU JunFa HUANG WeiXin | 2010 | Chinese Science Bulletin2010,55,34: | 0 |
| 8 | Analysis of the effect of holmium laser flexible ureteroscopic intrapelvic drainage in the treatment of parapelvic renal cysts显示文摘Objective:To explore the efficacy,safety,and feasibility of holmium laser flexible ureteroscopic intrapelvic drainage in the treatment of parapelvic renal cysts.Methods:From September 2012 to February 2019,a total of 18 patients,aged from 28 to 62(meanstandard deviation[SD]:46.50±9.14)years,were diagnosed with parapelvic renal cysts and treated by holmium laser flexible ureteroscopic intrapelvic drainage.There were 10 males and eight females.All of the parapelvic renal cysts were unilateral,and two cases were complicated with pyelolithiasis.The diameters of the cysts ranged from 4.1 cm to 8.2 cm.Results:All the patients completed the operation successfully in one stage without conversion to open surgery;in two cases,it was difficult to find the cysts during the operation,and the localization was completed by B-ultrasound and percutaneous injection of methylene blue.The mean operative time was 33.89(SD:9.68;range:22-54)min,and the mean hospitalization time was 2.67(SD:0.91;range:2-5)days.Three months and 6 months of follow-up were performed after surgery.The cysts disappeared in 13(72%)cases,and the diameter of the cysts in five(28%)cases decreased by more than 50%.Conclusion:Holmium laser flexible ureteroscopic intrapelvic drainage in the treatment of parapelvic renal cysts is simple,safe,and effective,and can be used as the first choice for the treatment of parapelvic renal cysts. | Yuanshen Mao Wenfeng Li Jun Da Mingxi Xu Yiwei Wang Yufei Gu Weixin Pan Zhong Wang | 2023 | Asian Journal of Urology2023,10,2: | 0 |
| 9 | Confining sulfur in sandwich structure of bamboo charcoal and aluminum fluoride(BC@S@AlF3) as a long cycle performance cathode for Li-S batteries显示文摘The ’shuttle effect’ of polysulfide causing rapid capacity fade and low coulo mbic efficiency of high ene rgy storage lithium-sulfur(Li-S) batteries.Herein,a sandwich structure of bamboo charcoal/sulfur coating by aluminum fluoride(BC@S@AlF3) composites is designed and fabricated for the first time.The as-designed cathode exhibited excellent electrochemical properties and stable capacity retention.The initial capacity reaches 1119 mA h/g and the capacity after 100 cycles is 869 mA h/g at 0.5 C,which is much stable than that of composite materials without bamboo charcoal or AlF3 coating.Moreover,the BC@S@AlF3 cathode presents excellent long-term capacity stability with a capacity decay of 0.073% per cycle during 500 charge/discharge cycles at 1 C,offering a potential for use in high energy Li-S batteries.The physical confinement,chemical ancho ring,and catalysis conversion for active sulfur are achieved simultaneously with the AlF3 coating and bamboo charcoal core with porous structure. | Zhenya Luo Xiao Wang Weixin Lei Pengtao Xia Yong Pan | 2020 | Journal of Materials Science & Technology2020,52,20: | 0 |
| 10 | ON THE THEORETICAL PREDICTION OF CAVITATION INCEPTION显示文摘After a brief review of the traditional theoretical prediction methods,i.e.bubbledynamics method and pressure parameters method,this paper presents a new prediction method,called“fuzzy prediction method”.The new method consists of two predicting channels(analysischannel and empirical channel)and one scale-effect gate.It can not only give a reliable predic-tion result,but also,better than other method,predict cavitation type on the body. | Pan, Sensen Xu, Weixin Peng, Xiaoxing Xu, Jie | 1992 | Journal of Hydrodynamics1992,4,1: | 0 |
| 11 | Formation Mechanism of Heartwood and Research Status显示文摘The formation mechanism of heartwood is a scientific problem which has not been fully revealed in wood science.Effective regulation of heartwood formation is a scientific problem that is rarely studied and has not yet achieved a breakthrough in the field of forest cultivation.It is very beneficial to regulate the chemical properties of wood and directional and efficient cultivation of trees by fully understanding the formation mechanism of heartwood.Based on the author s research and practice,the recent research progress on the formation mechanism and regulation technology of heartwood is summarized,especially the research on the heartwood formation of Hongmu species. | Guangping WU Weixin CHEN Xiaolin PAN Siyin XU Chengxiang XU | 2021 | Asian Agricultural Research2021,13,10: | 0 |
| 12 | Improving superficial microstructure and properties of the laser-processed ultrathin kerf in Ti-6Al-4V alloy by water-jet guiding显示文摘In the present research,the gas-assisted laser(GAL)and water-jet guided laser(WGL)processing technologies were applied to machine the ultrathin kerf in the wrought Ti-6Al-4V alloy.The microstructure,microhardness,and wear properties of the superficial layer were investigated.The results reveal that the GAL processing could machine the kerf with a high depth-to-width ratio of 12–15,but the increased processing times enhance the depth little.Due to the oxygen entrainment and relatively low heat and mass transferring efficiency,the assisted gas promotes the formation of a scaled recast layer containingβ-Ti phase and oxides,which increases the roughness to 20μm.The WGL processed kerf has a low depth-to-width ratio with a value of 1.9–2.5 and the depth could be increased by increasing the WGL processing times.With the assistance of the water jet,the remelted debris and heat could be eliminated immediately,which restrains the formation of the recast layer and heat-affected zone.The ultrathin oxide outer layer with hundreds of nanometers and ultrafineα-Ti grain inner layer are formed on the surface,which decreases the roughness to 12μm.Compared with the as-received Ti-6Al-4V alloy,the microhardness of GAL processed kerf surface is increased to 382.8 HV accompanied by residual tensile stress,while the microhardness of WGL processed kerf surface is increased to 481.6 HV accompanying with residual compressive stress.In addition,the GAL processing increases the wear rate at room temperature but decreases the wear rate at high temperatures.Comparatively,the WGL processing decreases the wear rate at room and high temperatures,simultaneously.Such wear behaviors could be ascribed to their different superficial microstructures and phase constituents. | Yang Chao Yuezhuan Liu Zifa Xu Weixin Xie Li Zhang Wentai Ouyang Haichen Wu Zebin Pan Junke Jiao Shujun Li Guangyi Zhang Wenwu Zhang Liyuan Sheng | 2023 | Journal of Materials Science & Technology2023,,25: | 0 |
| 13 | DR-XGBoost: An XGBoost model for field-road segmentation based on dual feature extraction and recursive feature elimination显示文摘Field-road segmentation is one of the key tasks in the processing of the trajectory of agricultural machinery.To improve the accuracy of the field-road segmentation,this study proposed an XGBoost model based on dual feature extraction and recursive feature elimination called DR-XGBoost.DR-XGBoost takes only a small amount of agricultural machine trajectory features as input.Firstly,the model adopted the dual feature extraction method we designed to rapidly expand the number of features and then adequately extract local trajectory features by the time window and feature extraction operator.Secondly,the model applies the recursive feature elimination algorithm to eliminate redundant features from the perspective of the model segmentation effect and thus reduce the computational consumption of model training.Thirdly,it trains XGBoost to complete the trajectory segmentation.To evaluate the effectiveness of DR-XGBoost,we conducted a series of experiments on a real trajectory dataset of agricultural machines.The model achieves a 98.2%Macro-F1 score on the dataset,which is 10.9%higher than the previous state-of-art.The proposal of DR-XGBoost fills the knowledge gap of trajectory feature extraction for agricultural machinery and provides a reasonable and effective feature selection scheme for the field-road segmentation problem. | Yuzhen Xiao Guozhao Mo Xiya Xiong Jiawen Pan Bingbing Hu Caicong Wu Weixin Zhai | 2023 | International Journal of Agricultural and Biological Engineering2023,16,3: | 0 |
| 14 | Variable precipitation behaviors of Laves phases in an ultralight Mg-Li-Zn alloy显示文摘Precipitation habits plays a decisive role in strengthening materials,especially for Mg alloys the non-basal plane precipitation is necessary but very limited.Generally,the precipitates would nucleate and grow up in a specific habit plane owing to the constraint of free-energy minimization of the system.Herein,in an aged ultralight Mg-Li-Zn alloy,we confirmed that the precipitates dominated by C15 Laves structure could form in a variety of habit planes,to generate three forms of strengthening-phases,i.e.,precipitate-rod,precipitate-lath,and precipitate-plate.Among which,the precipitate-plates are on basal plane as usually but precipitate-rods/laths are on non-basal plane,and such non-basal precipitates would transform into the basal(Mg,Li)Zn_(2)Laves structure with prolonged aging.These findings are interesting to understand the precipitation behaviors of multi-domain Laves structures in hexagonal close-packed crystals,and expected to provide a guidance for designing ultralight high-strength Mg-Li based alloys via precipitation hardening on the non-basal planes. | Weixin Lou Hongbo Xie Xiaobo Zhao Junyuan Bai Hehang Zhang Yi Wang Xinze Li Hucheng Pan Yuping Ren Gaowu Qin | 2023 | Journal of Magnesium and Alloys2023,11,6: | 0 |