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Combination of propofol and dezocine to improve safety and efficacy of anesthesia for gastroscopy and colonoscopy in adults: A randomized, double-blind, controlled trial

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World Journal of Clinical Cases 2019年第20期7卷 3237-3246页

作者： Xue-Ting Li chao-qun ma Si-Hua Qi Li-Min Zhang Department of Anaesthesiology The Fourth Affiliated HospitalHarbin Medical UniversityHarbin 150001Heilongjiang ProvinceChina Department of Neurosurgery Harbin 242 HospitalHarbin 150066Heilongjiang ProvinceChina

BACKGROUND Gastroscopy and colonoscopy are important and common endoscopic methods for the diagnosis and treatment of gastrointestinal and colorectal ***,endoscopy is usually associated with adverse reactions such as nervousness,nausea,vomiting,choking cough,and *** discomfort,such as vomiting,coughing,or body movement,may lead to aggravation of a preexisting condition or even interruption of examination or treatment,especially in some critically ill patients with physiological dysfunction(e.g.,cardiovascular or respiratory disease).The optimal methods for inducing analgesia and sedation in endoscopy are areas of ongoing debate;nevertheless,determining an appropriate regimen of sedation and analgesia is *** To evaluate the effects of propofol combined with dezocine,sufentanil,or fentanyl in painless gastroscopy and *** Four hundred patients were randomly assigned to one of four groups for anesthesia:intravenous dezocine,sufentanil,fentanyl,or *** was administered intravenously for induction and maintenance of *** The dosage of propofol in the dezocine group was significantly lower than those in other groups(Pmaintenance to a fully recovered patient)after eye opening in the dezocine group were significantly higher than those in other groups(P<0.01).Awakening time and postoperative pain score(0-10 points,no pain to unbearable pain)in the dezocine group were significantly lower than those in other groups(P<0.01).Mean arterial pressure and pulse oxygen saturation in the dezocine group were significantly more stable at various time points(before dosing,disappearance of eyelash reflex,and wakeup)than those in other groups(P<0.01).The rates of hypopnea,jaw thrust,body movements,and usage of vasoactive drugs in the dezocine group were significantly lower than those in other groups(P<0.01).Additi

关键词： Anesthesia Dezocine Propofol Gastroscopy Colonoscopy

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Nitrogen-doped carbon dots as photocatalysts for organic synthesis:Effect of nitrogen content on catalytic activity

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Nano Research 2024年第6期17卷 4825-4833页

作者： Kai-Kai Niu chao-qun ma Rui-Zhi Dong Hui Liu Sheng-Sheng Yu Ling-Bao Xing School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo 255000China

Regulating the doping of carbon dots(CDs)and the generation of reactive oxygen species(ROS)is essential to selectively control their application in photocatalytic organic *** study successfully synthesized five newly developed nitrogen-doped carbon dots(CDs 1-5)with varying nitrogen content,which have the ability to generate ROS when exposed to light radiation,specifically superoxide anion radicals(O_(2)•-)and singlet oxygen(^(1)O_(2)).The utilization of the aforementioned nitrogen-doped CDs as photocatalysts enables the realization of their potential in facilitating efficient photocatalytic organic ***,it was observed that the photocatalytic efficiency exhibited a gradual decrease when the nitrogen content in the CDs *** order to provide more evidence for this claim,we employed a set of five CDs in the context of photocatalytic dehalogenation ofα-bromoacetophenone,photocatalytic oxidative coupling reaction of amines to imines,photooxidation reaction of sulfides to sulfoxides,and cross-dehydrogenation coupling(CDC)reaction,in which it was further observed that there was a steady decrease in the yields of photocatalytic organic reactions as the nitrogen content in CDs ***,CDs 1 exhibited the best photocatalytic efficiency,thereby reinforcing the hypothesis that a higher nitrogen content corresponds to a decreased catalytic *** study not only investigates the impact of the nitrogen content on the catalytic performance of CDs,but also offers valuable insights for the future utilization of CDs for photocatalytic organic reactions in water.

关键词： carbon dots nitrogen-doped reactive oxygen species photocatalysis

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A novel strategy of constructing 2D supramolecular organic framework sensor for the identification of toxic metal ions

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Nano materials Science 2023年第3期5卷 335-342页

作者： Ying Wang Ning Han chao-qun ma Hui Liu Shengsheng Yu Rongzhou Wang Vijay Kumar Thakur Ling-Bao Xing School of Chemistry and Chemical Engineering Shandong University of TechnologyZibo255000PR China Department of materials Engineering KU LeuvenLeuven3001Belgium Biorefining and Advanced materials Research Center Scotland's Rural College(SRUC)Kings BuildingsWest Mains RoadEdinburghEH93JGUK

Two novel two-dimensional(2D)supramolecular organic frameworks were fabricated in water based on the encapsulation-enhanced donor-acceptor interaction between the methyl viologen(MV)units,methoxy naphthyl(MN)units,and CB[8].The tetraphenylethylene(TPE)derivatives 1 with four MV units were employed as rigid building blocks and the two MN units modified oligoethylene glycol derivatives 2 and 3 served as flexible edges,*** obtained two SOFs have obvious sheet-like structures and exhibit fluorescence emission at 350-500 *** addition,these two SOFs were employed for the luminescent detection of Cr(Ⅵ)and Mn(Ⅶ)in aqueous solutions,and the detection limits of CrO_(4)^(2-),Cr_(2)_(O)_(7)^(2-),and MnO_(4)were calculated in a very low concentration range,indicating that these two SOFs can serve as a potential sensor for Cr(Ⅵ)and Mn(Ⅶ)detection in *** work constructs two SOFs in an aqueous solution through a facile method and further enriches the applications of SOFs.

关键词： Two-dimensional supramolecular organic framework Encapsulation-enhanced donor-acceptor interaction Luminescent detection

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Delay Effect on Coherent Transfer of Optical Frequency Based on a Triple-Pass Scheme

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Chinese Physics Letters 2018年第8期35卷 9-13页

作者： chao-qun ma Li-Fei Wu Jiao Gu Yan-He Chen Guo-Qing Chen School of Science Jiangnan UniversityWuxi 214122 Jiangsu Provincial Research Center of Light Industrial Optoelectronic Engineering and Technology Jiangnan UniversityWuxi 214122 State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062

We demonstrate a triple-pass scheme for coherent transfer of optical frequency and the delay effect on the fiber phase noise compensation. It is theoretically proved that the delay effect consists of both fiber delay and servo delay. The delay effect confines the servo bandwidth within 1/8 and induces a residual fiber phase noise after noise compensation. For a 25-km-long fiber, the servo bandwidth is found to be around 1 k Hz, and the fiber phase noise is suppressed approaching to the theoretical limitation. The triple-pass scheme enables the simultaneous transfer of optical frequency to multiple remote users. The performance of noise compensator in the triple-pass scheme can achieve a similar level result compared with that in the double-pass scheme.

关键词： Delay Effect on Coherent Transfer of Optical Frequency Based on a Triple-Pass Scheme AOM

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Perianal tuberculous ulcer with active pulmonary,intestinal and orificial tuberculosis:A case report

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World Journal of Radiology 2024年第8期16卷 356-361页

作者： Bao Yuan chao-qun ma Department of General Surgery Jiangyin Hospital Affiliated to Nanjing University of Chinese MedicineWuxi 214400Jiangsu ProvinceChina Department of General Surgery Affiliated Hospital of Nanjing University of Chinese MedicineNanjing 210029Jiangsu ProvinceChina

BACKGROUND Orificial tuberculosis is a rare type of tuberculosis,which is easy to be misdiagnosed,and can cause great damage to the perianal skin and *** diagnosis can avoid further erosion of the perianal muscle tissue by tuberculosis *** SUMmaRY Here,we report a case of disseminated tuberculosis in a 62-year-old male patient with a perianal tuberculous ulcer and active pulmonary tuberculosis,intestinal tuberculosis and orificial *** is an extremely rare case of cutaneous tuberculosis of the anus,which was misdiagnosed for nearly a *** patient received conventional treatment in other medical institutions,but specific treatment was ***,proper diagnosis and treatment with standard anti-tuberculosis drugs for one year led to complete *** For skin ulcers that do not heal with repeated conventional treatments,consider ulcers caused by rare bacteria,such as Mycobacterium tuberculosis.

关键词： Pulmonary tuberculosis Orificial tuberculosis Perianal tuberculous ulcer Mycobacterium tuberculosis Case report

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Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang Liang Yu-Gang ma Xin-Li Sheng qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

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Identifying the dynamic behaviors in complete reconstruction of Co-based complex precatalysts during electrocatalytic oxygen evolution

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Journal of Energy Chemistry 2025年第1期100卷 226-233页

作者： Jingfang Zhang Danyang Wu Linke Cai Youluan Lu Fanpeng Cheng Lijuan Shi qun Yi Yao Liu Yi Huang Key Laboratory of Green Chemical Engineering Process of Ministry of Education Engineering Research Center of Phosphorus Resources Development and Utilization of Ministry of Education Hubei Key Laboratory of Novel Reactor and Green Chemical Technology School of Chemical Engineering & Pharmacy Wuhan Institute of Technology Key Laboratory of Pesticide & Chemical Biology of Ministry of Education Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction of Ministry of Education College of Chemistry Central China Normal University College of materials Science and Engineering Fuzhou University

Transition metal-based nanomaterials have emerged as promising electrocatalysts for oxygen evolution reaction（OER）. Considerable research efforts have shown that self-reconstruction occurs on these nanomaterials under operating conditions of OER process. However, most of them undergo incomplete reconstruction with limited thickness of reconstruction layer, leading to low component utilization and arduous exploration of real catalytic mechanism. Herein, we identify the dynamic behaviors in complete reconstruction of Co-based complexes during OER. The hollow phytic acid（PA） cross-linked CoFe-based complex nanoboxes with porous nanowalls are designed because of their good electrolyte penetration and mass transport ability, in favor of the fast and complete reconstruction. A series of experiment characterizations demonstrate that the reconstruction process includes the fast substitution of PA by OH-to form Co（Fe）(OH)xand subsequent potential-driven oxidation to Co（Fe）OOH. The obtained CoFeOOH delivers a low overpotential of 290 mV at a current density of 10 ma cm-2and a long-term *** experiment results together with theory calculations reveal that the Fe incorporation can result in the electron rearrangement of reconstructed CoFeOOH and optimization of their electronic structure,accounting for the enhanced OER activity. The work provides new insights into complete reconstruction of metal-based complexes during OER and offers guidelines for rational design of high-performance electrocatalysts.

关键词： Complete reconstruction Co-based complex Precatalysts Oxygen evolution reaction

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不同类型学业压力对不同年级高中生执行功能子成分的影响

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心理学报 2025年第1期57卷 18-35页

作者：马超汪彦云付军军赵鑫甘肃省行为与心理健康重点实验室西北师范大学心理学院兰州730070

选取985名高一~高三年级的学生,采用相关分析和结构方程模型等方法考察了学业压力4个子维度在不同年级高中生各执行功能成分中的作用。结果发现,随着高中生年级的升高,父母压力和教师压力对各执行功能成分的负向预测作用逐渐增强,社交... 详细信息

选取985名高一~高三年级的学生,采用相关分析和结构方程模型等方法考察了学业压力4个子维度在不同年级高中生各执行功能成分中的作用。结果发现,随着高中生年级的升高,父母压力和教师压力对各执行功能成分的负向预测作用逐渐增强,社交压力对各执行功能成分的负向预测作用逐渐减弱。相比之下,自我压力对高中生的干扰抑制、反应抑制和注意转换能力均显示出了正向预测作用,并随年级的升高而增强。这表明,不同类型学业压力对各执行功能成分的预测作用存在差异,并将随高中生年级的升高而发生变化。本研究所产生的结论对于教育工作者有效制定高中生学业压力应对策略具有重要的启示意义。

关键词：执行功能学业压力高中生结构方程模型

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Fixed-Time Controller Design for a Quadrotor UAV with Asymmetric Output Error Constraints

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Journal of Systems Science & Complexity 2023年第5期36卷 1981-2000页

作者： WANG Fang ma Zhigang ZHOU chao ZHANG Zheng HUA Changchun ZONG qun School of Science Yanshan UniversityQinhuangdao 066004China Ocean College Hebei Agricultural UniversityQinhuangdao 066003China School of Electric Engineering Yanshan UniversityQinhuangdao 066004China School of Electrical and Information Engineering Tianjin UniversityTianjin 300072China

In this article,a fixed-time tracking control strategy is proposed for a quadrotor UAV(QUAV)with external disturbance and asymmetric output error ***,a dynamic model of the QUAV is transformed into a strict feedback system with external disturbance,and it is decoupled into attitude subsystem and position subsystem for simplifying controller ***,an asymmetric tangent barrier Lyapunov function(ATBLF)is applied to solve the tracking error constraints problem,and a fixed-time control law is ***,a fixed-time disturbance observer(FTDO)is designed to cope with external ***,it is proved that the designed controller guarantees the tracking error remains within the constraint ranges and converges to zero in fixed-time by Lyapunov stability ***,the effectiveness of the proposed control scheme is verified by numerical simulations.

关键词： Asymmetric tangent barrier Lyapunov function(ATBLF) fixed-time disturbance observer(FTDO) output error constraints quadrotor UAV(QUAV)

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Review of cylinder block/valve plate interface in axial piston pumps: Theoretical models,experimental investigations, and optimal design

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Chinese Journal of Aeronautics 2021年第1期34卷 111-134页

作者： Jiang'ao ZHAO Yongling FU Jiming ma Jian FU qun chao Yan WANG School of Mechanical Engineering and Automation Beihang UniversityBeijing 100191China Laboratory of Aerospace Servo Actuation and Transmission Beihang UniversityBeijing 100191China State Key Laboratory of Mechanical System and Vibration Shanghai Jiao Tong UniversityShanghai 200240China

Axial piston pumps have been widely used in aircraft hydraulic systems to supply the system with pressurized fluid. The continuous improvement of the aircraft performance has put forward the demand on aviation piston pumps for high power density, safety, and reliability. The lubricating interfaces in axial piston machines are the key design issue that greatly determines the pump performance and service life. The cylinder block/valve plate interface is one of these critical lubricating interfaces and has received considerable attention from many researchers in the last half century. This study aims to review the state-of-the-art literature on the cylinder block/valve plate interface comprehensively and systematically. First, we introduce various theoretical models developed to investigate the lubrication behaviors of the interface and compare them in terms of their assumptions and limitations. Second, the experimental studies on the cylinder block/valve plate interface are presented comprehensively, where the involved test rigs are divided into three types according to their fidelity levels and measurement functionality. Third, we summarize some typical approaches of structure optimization, surface shaping, and surface strengthening, which help improve the load-carrying and anti-wear capacities of the interface under severe operating conditions. Finally, the challenges and future trends of the cylinder block/valve plate interface research are discussed briefly.

关键词： Axial piston pump Cylinder block/valve plate interface Theoretical model Test rig Optimization methods

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