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The Electrocatalytic Performance of Rare Earth Ion Doped Co_(0.2)Ni_(0.8)-MOF-74 Catalyst for Nitrogen Reduction

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Journal of Wuhan University of Technology(Materials Science) 2024年第6期39卷 1337-1347页

作者： YUE Song GONG Lunjun yang tonghui HU Weida LIU Xiaopan GAO Pengzhao XIAO Hanning College of Materials Science and Engineering Hunan UniversityChangsha 410082China College of Materials Science and Engineering Xiangtan UniversityXiangtan 411199China Liling Ceramic College Hunan University of TechnologyZhuzhou 412200China Hunan yangdong Porcelain Insulators&Electric Co.Ltd. Zhuzhou 412205China

We took Co_(0.2)Ni_(0.8)-MOF-74 with bimetallic synergistic effect as the basic material,and selected rare earth ions Ho,Gd,and Er with ion radii close to Co and Ni as the research objects for *** influence of rare earth ion doping amount and doping type on the eNRR performance of the catalyst was *** experimental results show that the ammonia yield rate and Faraday efficiency doped with Co_(0.2)Ni_(0.8)-MOF-0.5Ho are the highest,reaching 1.28×10^(-10)mol·s^(-1)·cm^(-2)/39.8%,which is higher than the1.12×10^(-10)mol·s^(-1)·cm^(-2)/32.2%of Co_(0.2)Ni_(0.8)-MOF-74,and is about 14.3%/23.7%higher than that without doping,*** the stability of Co_(0.2)Ni_(0.8)-MOF-0.5 Ho is good(after 80 hours of continuous testing,the current density did not significantly decrease).This is mainly due to doping,which gives Co_(0.2)Ni_(0.8)-MOF-74 a larger specific surface area and catalytic active *** catalyst doped at the same time has more metal cation centers,which increases the electron density of the metal centers and enhances the corresponding eNRR performance.

关键词： electrocatalytic nitrogen reduction metal organic framework rare earth ions doping

Theoretical analysis of the elastic Kelvin-Helmholtz instability in explosive weldings

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Defence Technology（防务技术） 2024年第2期32卷 521-528页

作者： Yuanbo Sun Jianning Gou Cheng Wang Qiang Zhou Rui Liu Pengwan Chen tonghui yang Xiang Zhao State Key Laboratory of Explosion Science and Technology Beijing Institute of TechnologyBeijing100081China Beijing HIWING Scientific and Technological Information Institute Beijing100084China School of Aerospace Engineering Tsinghua UniversityBeijing100084China

By considering the joint effects of the Kelvin-Helmholtz(KH) and Rayleigh-Taylor(RT) instabilities, this paper presents an interpretation of the wavy patterns that occur in explosive welding. It is assumed that the elasticity of the material at the interface effectively determines the wavelength, because explosive welding is basically a solid-state welding process. To this end, an analytical model of elastic hydrodynamic instabilities is proposed, and the most unstable mode is selected in the solid phase. Similar approaches have been widely used to study the interfacial behavior of solid metals in high-energy-density physics. By comparing the experimental and theoretical results, it is concluded that thermal softening,which significantly reduces the shear modulus, is necessary and sufficient for successful welding. The thermal softening is verified by theoretical analysis of the increase in temperature due to the impacting and sliding of the flyer and base plates, and some experimental observations are qualitatively *** summary, the combined effect of the KH and RT instabilities in solids determines the wavy morphology, and our theoretical results are in good qualitative agreement with experimental and numerical observations.

关键词： Explosive welding Hydrodynamic instabilities Elasticity

Clinical Types and Outcome of Minor Ischemic Stroke in Northern China: A Retrospective Cohort Study

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World Journal of Neuroscience 2017年第1期7卷 95-105页

作者： Guangsheng Wang Daoming Tong Xiaodong Chen tonghui yang Yeting Zhou Department of Neurology The Affiliated Shuyang People’ Hospital Xuzhou Medical University Xuzhou China Medical Evaluation Center The Affiliated Shuyang People’ Hospital Xuzhou Medical University Xuzhou China

Background: As a common and high incidence of disease, the minor ischemic stroke (MIS) has become an important public health problem. The aim of this study was to address whether patients with MIS have different types and outcome in the elderly in northern China. Methods: A retrospective cohort of consecutive patients was selected for study;all registered neurologic outpatients of the tertiary teaching hospital in northern Jiangsu, China between February, 2011 and February, 2012. A total of 433 outpatients, clinically only having had an initial visit and a MRI study of the brain, were enrolled. Results: Of 433 outpatients, 247 (57.0%) patients with MIS were diagnosed. The clinical types of MIS included stable MIS in 58.3%, acute progressive MIS in 5.3%, and chronic progressive MIS in 36.4% of patients. After adjusted Odd ratio (OR), only aged (OR, 1.0;95% confidence interval [CI], 1.007 - 1.087, p = 0.021), episode duration (OR, 1.8;95% CI, 1.011 - 1.024, p = 0.001), initial number of MIS (OR, 1.1;95% CI, 1.047 - 1.207, p = 0.001), and infarcts volume (OR, 1.8;95% CI, 1.253 - 2.681, p = 0.002) were independently associated with stable MIS and progressive MIS. Total survival was favorable among groups (p = 0.094), but the followed mRS score was significantly higher among those progressive MIS than those stable MIS (2.3 ± 1.0 vs 0.1 ± 0.3, p Conclusion: MIS had a very high prevalence and different clinical types. Stable MIS is a benign stroke, whereas those progressive MIS may have long-term instability or acute and chronic progressive trend. This information is important in prospectively determining outcome of MIS and in patient treatment.

关键词： Minor Ischemic Stroke Magnetic Resonance Imaging Incidence Clinical Types Outcome

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炸药慢烤热点火起爆数值模拟及试验研究

北京理工大学学报 2023年第5期43卷 485-492页

作者：王成方钧宇杨同会北京理工大学、爆炸科学与技术国家重点实验室北京100081

开发了炸药烤燃热起爆仿真计算程序,烤燃求解器采用交替方向隐格式,起爆求解器采用5阶WENO格式进行计算,实现了炸药受热升温到起爆演化全过程数值仿真计算.使用的交替方向隐格式具有无条件稳定、受网格限制小、求解效率高的特点,烤燃计... 详细信息

开发了炸药烤燃热起爆仿真计算程序,烤燃求解器采用交替方向隐格式,起爆求解器采用5阶WENO格式进行计算,实现了炸药受热升温到起爆演化全过程数值仿真计算.使用的交替方向隐格式具有无条件稳定、受网格限制小、求解效率高的特点,烤燃计算中引入液相率β对炸药相变进行描述.以TNT炸药为研究对象开展慢烤热起爆数值模拟研究,得到了炸药局部温度演化和临界点火阈值,并给出相变对烤燃过程的影响规律.同时开展TNT慢烤实验,通过嵌入式热电偶传感器对程序进行了验证,仿真得到的温升曲线及相变平台与实验结果对比良好,证实了计算的可靠性.通过力-热-化耦合的模拟计算,给出了炸药受热后点火区域和演化规律,发现反应初始阶段由温度主导,随着反应进程发展转变为压力主导.

关键词：凝聚相炸药慢烤热点火起爆无条件稳定算法 WENO格式

含铝炸药深水爆炸能量输出特性高精度数值模拟研究

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北京理工大学学报 2024年第8期44卷 872-878页

作者：王成杨长鑫贾曦雨杨同会北京理工大学爆炸科学与技术重点实验室北京100081 清华大学航空航天学院北京100084

在深水条件下含铝炸药爆炸不同于理想炸药,高静水压力会影响铝粉参与二次燃烧反应的速率,进而影响能量的释放过程.采用3阶MUSCL有限体积方法结合含铝炸药Miller能量释放模型,研究CL-20基含铝炸药在100~3 000 m水深梯度范围下随水深变化... 详细信息

在深水条件下含铝炸药爆炸不同于理想炸药,高静水压力会影响铝粉参与二次燃烧反应的速率,进而影响能量的释放过程.采用3阶MUSCL有限体积方法结合含铝炸药Miller能量释放模型,研究CL-20基含铝炸药在100~3 000 m水深梯度范围下随水深变化的爆炸能量输出特性.结果表明:爆炸冲击波能会随着水深的增加而不断减小;当水深超过200 m后,CL-20基含铝炸药中铝粉二次反应时间超过气泡周期,在第一个脉动周期内铝粉反应释放能量不充分导致根据气泡周期公式得到的气泡能偏小,气泡能也随着水深增加而减小,爆炸总能量不为定值.

关键词：含铝炸药深水爆炸能量输出数值模拟

Rare Huge Congenital Intracranial Silent Teratoma in Older People: A Case Report

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Advances in Molecular Imaging 2013年第4期3卷 61-63页

作者： Yeting Zhou Daoming Tong Xiaodong Chen Guangsheng Wang tonghui yang Yuanwei Wang Departments of Neurology Shuyang People’Hospital Shuyang China Medical Evaluation Unit Shuyang People’Hospital Shuyang China

The huge?congenital?intracranial teratoma is very rare. We report a case of a 77 years old male with giant congenital brain teratoma without clinical symptoms. His computed tomography (CT) scan showed a massive tumor (6 × 5 × 6 cm) of irregular high density (inside with some point flaky low density) in left temporal lobe region, the lower corner of the left ventricle downward shift, and enhanced CT scan no enhancement. Magnetic resonance imaging (MRI) on brain showed an irregular huge tumor in the left temporal lobe area, with multiple nodular or lobulated mixd high and low or equal signal changes, in which the liquid signal based. The midline was shift to the right, and the posterior horn of the left ventricle was compressed and downward shift, expansion, and hydrocephalus. After follow-up 12 months, the patient presents a normal daily life and work and no neurological signs as usual. Our observations show that the huge tumor in brain with multiple nodular or lobulated variety of mixed signal changes on MRI without symptoms is a congenital intracranial silent teratoma.

关键词： Tumor Congenital Intracranial Teratoma Computed Tomography Magnetic Resonance Imaging Outcome

Molecular Structure Tailoring of Organic Spacers for High‑Performance Ruddlesden–Popper Perovskite Solar Cells

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Nano-Micro Letters 2025年第2期17卷 314-357页

作者： Pengyun Liu Xuejin Li tonghui Cai Wei Xing Naitao yang Hamidreza Arandiyan Zongping Shao Shaobin Wang Shaomin Liu School of Materials Science and Engineering State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(East China)Qingdao 266580People’s Republic of China School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255049People’s Republic of China Centre for Applied Materials and Industrial Chemistry(CAMIC) School of ScienceRMIT UniversityMelbourneVic 3000Australia WA School of Mines:Minerals Energy and Chemical Engineering(WASM‑MECE)Curtin UniversityPerthWA 6102Australia School of Chemical Engineering The University of AdelaideAdelaideSA 5005Australia School of Engineering Great Bay UniversityDongguan 523000People’s Republic of China

Layer-structured Ruddlesden–Popper(RP)perovskites(RPPs)with decent stability have captured the imagination of the photovoltaic research community and bring hope for boosting the development of perovskite solar cell(PSC)***,two-dimensional(2D)or quasi-2D RP PSCs are encountered with some challenges of the large exciton binding energy,blocked charge transport and poor film quality,which restrict their photovoltaic ***,these issues can be readily resolved by rationally designing spacer cations of *** review mainly focuses on how to design the molecular structures of organic spacers and aims to endow RPPs with outstanding photovoltaic *** firstly elucidated the important roles of organic spacers in impacting crystallization kinetics,charge transporting ability and stability of *** we brought three aspects to attention for designing organic ***,we presented the specific molecular structure design strategies for organic spacers of RPPs aiming to improve photovoltaic performance of RP *** proposed strategies in this review will provide new avenues to develop novel organic spacers for RPPs and advance the development of RPP photovoltaic technology for future applications.

关键词： Ruddlesden-Popper perovskites Low-dimensional perovskite solar cells Organic spacers Molecular structure Design strategies

兼容MIPS指令集的超标量微处理器ALU设计

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计算机工程与应用 2005年第35期41卷 92-94,97页

作者：杨通辉杨洪斌吴悦上海大学计算机工程与科学学院上海200072

文章介绍了一种兼容MIPS指令系统的32位超标量微处理器IP核(简称BSR03)的设计。重点讨论了其中的32位先行进位ALU的设计,以及对补码数与无符号数算术运算的溢出、进位、借位、比较等问题的处理方法。BSR03采用自顶向下的层次设计方法,用... 详细信息

文章介绍了一种兼容MIPS指令系统的32位超标量微处理器IP核(简称BSR03)的设计。重点讨论了其中的32位先行进位ALU的设计,以及对补码数与无符号数算术运算的溢出、进位、借位、比较等问题的处理方法。BSR03采用自顶向下的层次设计方法,用VH DL语言进行描述,用Active-H DL6.1进行仿真、验证,用synplify pro7.1进行综合,该设计符合预定的结果。

关键词：微处理器 ALU 超标量

Acute headache in general neurology of China: Cause changes and predictors of short-term outcome

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World Journal of Neuroscience 2012年第2期2卷 98-102页

作者： Guangsheng Wang Yeting Zhou Xiaodong Chen Hongjian Wang tonghui yang Chunhong Chang Yuanwei Wang Hanpei Gu Daoming Tong Department of Medical Affairs Shuyang People’s Hospital Shuyang China Departments of Neurology Shuyang People’s Hospital Shuyang China Medical Evaluation Unit Shuyang People’s Hospital Shuyang China

Background: Although patients with acute headache frequently present in emergency department, the causes and predictors of short-term outcome in patients with acute headache in general neurology have not been adequately investigated. Methods: We prospectively reviewed the medical records of 130 hospitalized acute headache pa-tients in general neurology of China. Their initial CT scan was assessed, as was their lumbar puncture (LP) examination if performed. Results: The main cause of acute headache was acute secondary headache (80.8%), which was mainly attributable to acute cerebrovascular events (72.4%) followed by intracranial infection (19.0%). Among the 10.8% of patients who died during hospitalization most (85.7%) had subarachnoid hemorrhage (SAH). Significant predictors of survival were severe headache versus thunderclap headache, meningismus, de-layed loss of consciousness, and hypertension (all p < 0.05). Multiple logistic regression analyses showed significant differences in severe headache or thunderclap headache (OR, 0.255;95%CI, 0.066 - 0.990;p = 0.048) and delayed loss of consciousness (OR, 0.060;95%CI, 0.016 - 0.224, p = 0.000) between patients who died and those who survived. Conclusions: The main underlying cause of hospitalized acute headache was acute cerebrovascular events. Severe headache and delayed loss of consciousness are predictors for poor outcome of acute headache.

关键词： Acute Headache Causes Cerebrovescular Events Subarachnoid Hemorrhage Outcome