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瑞马唑仑联合瑞芬太尼对膀胱镜碎石手术麻醉效果及血流动力学影响

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吉林医学 2024年第10期45卷 2450-2453页

作者：吴冬金杨雅婷刘洋厦门大学附属第一医院麻醉科

目的：探讨瑞马唑仑联合瑞芬太尼对膀胱镜碎石手术麻醉效果及血流动力学影响。方法：选取厦门大学附属第一医院2023年1月～2024年2月需要住院行膀胱镜碎石手术的82例患者为研究对象，根据随机数字表法分为瑞马唑仑组(R组，n=41)和丙泊酚... 详细信息

目的：探讨瑞马唑仑联合瑞芬太尼对膀胱镜碎石手术麻醉效果及血流动力学影响。方法：选取厦门大学附属第一医院2023年1月～2024年2月需要住院行膀胱镜碎石手术的82例患者为研究对象，根据随机数字表法分为瑞马唑仑组(R组，n=41)和丙泊酚组(P组，n=41),R组使用瑞马唑仑联合瑞芬太尼进行麻醉，P组使用丙泊酚联合瑞芬太尼进行麻醉。比较两组麻醉起效时间、麻醉苏醒时间、拔管时间。比较两组患者在麻醉诱导前(T0)、麻醉给药后(T1)、置入喉罩后(T2)和拔除喉罩后(T3)时刻的血流动力学变化。评估围术期麻醉相关不良事件发生情况。结果：与P组相比，R组起效时间较慢，R组苏醒时间以及拔管时间更短，差异具有统计学意义(P0.05)。结论：瑞马唑仑联合瑞芬太尼在膀胱镜碎石手术中具有良好的麻醉效果，对血流动力学影响较小，能够有效维持血流动力学稳定。

关键词：瑞马唑仑瑞芬太尼膀胱镜碎石手术麻醉效果血流动力学

CLINICAL SIGNIFICANCE OF THE LYMPH NODE MICRO-METASTASIS IN PATEINTS WITH EARLY STAGE NON-SMALL-CELL LUNG CANCER

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Chinese Journal of Cancer Research 2000年第4期12卷 271-272页

作者：申戈鲍云华吴进冬wu jin-dong Department of Oncology North Taiping Road Hospital Cancer Center

The postoperative 5-year survival rate is about 50-85% in the patient with the stage I non-small-cell lung cancer (NSCLC). It is remains unclear how we should give these patients adjuvant radiotherapy and chemotherapy after operation. We performed a postspective study to assess the prognostic and treatment guiding significance of lymph nodes micrometastasis (LMM) in patients with completely resected NSCLC at stage I.

关键词： NSCLC CLINICAL SIGNIFICANCE OF THE LYMPH NODE MICRO-METASTASIS IN PATEINTS WITH EARLY STAGE NON-SMALL-CELL LUNG CANCER

Efficient removal of natural organo-chromium(Ⅲ)through selfcirculating decomplex and immobilization with nanoscale zerovalent iron

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Nano Research 2024年第1期17卷 364-371页

作者： Zhicheng dong Yunyun Xu Can wu jin Chao Chen Tian Zhang Lin School of Metallurgy and Environment Central South UniversityChangsha 410083China Chinese National Engineering Research Center for Control&Treatment of Heavy Metal Pollution Changsha 410083China College of Ecology and Environment Chengdu University of TechnologyChengdu 610059China School of Environment and Energy The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters(Ministry of Education)South China University of TechnologyGuangzhou 510006China

Organo-chromium(III)complex is one of the chromium contaminant species,which would transform to high-toxic Cr(VI)during migrating in the *** natural organo-chromium(III)(NOCr)is difficult to remove by traditional degradation or precipitation methods,due to its high stability and ***,we demonstrated a novel NOCr removing method by transforming it to certain structures similar to Cr-Fe minerals in nature,through a self-circulating decomplex and immobilization mechanism with nano zero-valent iron(nZVI).Taking chromium glycinate(Cr-Gly)as a probe,nZVI showed a high Cr removal efficiency of 99.4%under ambient *** removal process included three stages of adsorption,decomplexation,and ***-Gly was first adsorbed on the surface of nZVI by chemisorption of the oxide ***,the adsorbed Cr-Gly was decomplexed and oxidized to Cr(VI)by·OH and 1O_(2),which were generated from molecular oxygen activated by ***,the released Cr(VI)could be in-situ adsorbed and re-reduced to Cr(III),which was further immobilized in form of Cr-O-Fe *** the Cr-O-Fe complexing structure was similar to that of Cr-Fe minerals(such as chromohercynite)in nature,this work explored a novel and efficient NOCr removing method that was potential to weaken chromium pollution in the environment.

关键词： organo-chromium(III) zero-valent iron adsorption decomplexation Cr immobilization

机器人辅助手术矫正青少年重度特发性脊柱侧弯

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中国矫形外科杂志 2024年第7期32卷 596-601页

作者：李雅南李殿国吴东进曹光庆孙小刚徐加龙张振华刘帅山东大学第二医院儿外科山东济南250033 山东大学第二医院脊柱外科山东济南250033

[目的]评估骨科机器人辅助后路全椎体截骨术(posterior vertebral column resection,PVCR)椎弓钉-棒系统矫正重度青少年特发性脊柱侧弯(adolescent idiopathic scoliosis,AIS)的临床效果。[方法]回顾性分析2018年9月—2022年6月收治的26例重度AIS患者临床资料。依据术前医患沟通结果,11例采用机器人辅助椎弓钉置入(机器人组);15例采用徒手椎弓钉置入(徒手组)。比较两组临床与影像资料。[结果]所有患者均顺利完成手术,两组共切除28个椎体;机器人组共置入242枚螺钉,徒手组置入311枚。术中两组患者均未发生脊髓损伤、死亡等严重并发症。虽然机器人组手术时间明显长于徒手组[(760.3±43.8)min vs(637.3±37.9)min,P0.05)。两组患者随访至少12个月,术后患者躯干平衡显著改善,身高和坐高显著增加,生活与运动能力改善。随访过程中,两组患者均未出畸形矫正明显丢失,均无手术翻修。影像方面,机器人组置钉准确率显著高于徒手组[(95.1±2.1)%vs(85.6±3.3)%,P0.05)。[结论]PVCR对重度AIS具有较好的矫形效果,术中机器人辅助技术可以有效提高螺钉的精准度,但由于学习曲线处于初级阶段,手术时间可能会增加。

关键词：重度青少年特发性脊柱侧弯后路全椎体截骨术椎弓钉置入机器人辅助手术

A novel DPSS filter optimization scheme to reduce the intrinsic interference of FBMC-QAM systems

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High Technology Letters 2024年第1期30卷 68-74页

作者：董琪阳 MA Tianming jin Jie wu Zhong School of Electrical and Electronic Engineering Shanghai University of Engineering ScienceShanghai 201620P.R.China

In order to reduce the intrinsic interference of the filter bank multicarrier-quadrature amplitude modulation(FBMC-QAM)system,a novel filter optimization scheme based on discrete prolate spheroidal sequences(DPSS)is ***,a prototype filter function based on DPSS is designed,since the eigenvalue can be used as an indicator of the energy concentration of DPSS,so a threshold is set,and the sequence with the most concentrated energy is selected under the threshold,that is,the sequence with the eigenvalue higher than the threshold,and the prototype filter function is rewritten as a weighted sum function of multiple *** the energy constraints of the filter,the relationship between the eigenvectors and the intrinsic interference function is established,and the function problem is transformed into an optimization problem for the weighted *** the interior point method,the most suitable weight is found to obtain the minimum intrinsic interference *** analysis and simulation results show that compared with the prototype filters such as Type1 and CaseC,the DPSS filter applying the proposed optimization algorithm can effectively suppress the intrinsic interference of the system and obtain a better bit error rate(BER)performance.

关键词： filter bank multicarrier-quadrature amplitude modulation(FBMC-QAM) intrinsic interference discrete prolate spheroidal sequences(DPSS) interior point method

Changes in climatic variability and maize yield inNortheast China

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Journal of Geographical Sciences 1999年第3期9卷 236-247页

作者： wu jin-dong WANG Fu-tang(Chinese Academy of Meteorological Sciences, Beijing 100081, China)

The method linking general circulation models' (GCMs') outputs with crop growthsimulation models' inputs has been the first choice in the studies of impacts of climate *** in climatic variability, however were not considered in most studies due to limitedknowledge concerned Changes in climatic means derived from a general circulation model DKRZOPYC were input into a stochastic weather generator WGEN run for synthetic daily climate *** Carlo stochastic sampling method was adopted to generate climate change scenarios withvarious possible climatic veriabilities. A dynamic simulation model for maize growth anddevelopment of MZMOD was used to assess the potenhal implication of the changes in both climaticmeans and variability nd the boacts of crop management in changing climate on maize productionin Northeast China. The results indicated that maize yield would be reduced to various degrees inmost of the sensitivity experiments of climatic variability associating with the shortening of theduration of phenological phase of different sowing dates. The Anpacts of the diverse distributions ofclimatic factors detetmined by multiple changes in climatic variability on maire production and itsvariation, however, are not identical and have distinct regional disparities. Yield reduction caused bychanges in climatic means may be alleviated or aggravated by didributions of certain climaticvariables in line with the corresponding climatic variability according to the sensitivity ***, the hypothesis keeping climatic variability constant in the traditional research imposesrestriction on the overall inveshgation of the impacts of climate change on maize production.

关键词： climatic variability stochastic weather generator GCMs crop model

State-Based Opacity Verification of Networked Discrete Event Systems Using Labeled Petri Nets

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IEEE/CAA Journal of Automatica Sinica 2024年第5期11卷 1274-1291页

作者： Yifan dong Naiqi wu Zhiwu Li The authors are with the Institute of Systems Engineering Macao University of Science and TechnologyTaipa 999078MacaoChina

The opaque property plays an important role in the operation of a security-critical system,implying that pre-defined secret information of the system is not able to be inferred through partially observing its *** paper addresses the verification of current-state,initial-state,infinite-step,and K-step opacity of networked discrete event systems modeled by labeled Petri nets,where communication losses and delays are *** on the symbolic technique for the representation of states in Petri nets,an observer and an estimator are designed for the verification of current-state and initial-state opacity,***,we propose a structure called an I-observer that is combined with secret states to verify whether a networked discrete event system is infinite-step opaque or K-step *** to the utilization of symbolic approaches for the state-based opacity verification,the computation of the reachability graphs of labeled Petri nets is avoided,which dramatically reduces the computational overheads stemming from networked discrete event systems.

关键词： infinite system symbolic

An epidermal electrode based triboelectric walking energy harvester for wearable wireless sensing applications

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Science China(Technological Sciences) 2024年第3期67卷 949-957页

作者： CHANG ShiYuan LIU FuHai CHEN jinKai XIA LianBin ZHOU Hao JIANG jingYang dong Kang ZHANG ChenHao wu Yun CHEN jin XUAN Weipeng SUN LingLing jin Hao dong ShuRong LUO JiKui Ministry of Education Key Laboratory of RF Circuits and Systems Hangzhou Dianzi UniversityHangzhou 310018China Special Equipment College Hangzhou Vocational&Technical CollegeHangzhou 310018China College of Information Science and Electronic Engineering Zhejiang UniversityHangzhou 330027China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311200China

Harvesting bio-kinetic energy using a triboelectric nanogenerator(TENG) is one of the promising routes to solve the sustainable energy supply problem for wearable electronics. However, additional materials, complex fabricating processes or specific mechanical structures are needed for existing TENGs to harvest bio-kinetic energy. Besides, they need to be tightly attached to the human body, which may result in detachment and malfunction under tense human motion. Herein, an intrinsic epidermal electrode-based TENG(E-TENG) is proposed to harvest human walking energy. The wearing shoes and ground are used as tribo-materials, and the human epidermis is used as the back electrode of the E-TENG. Compared with the traditional TENGs,the E-TENG does not need any additional tribo-materials and complex mechanical structures. Under optimal conditions, the voltage output of E-TENG can reach 914 V. E-TENG has been used as a self-powered warning sensor and pedometer sensor for demonstration. Furthermore, E-TENG based self-powered wireless sensor system has been developed using a newly designed micro energy electronic switch(MEES). Ambient ultraviolet intensity, temperature and humidity information can be monitored and then transmitted to mobile phone every 3.5 min, demonstrating great potential for widespread wearable applications.

关键词： triboelectric nanogenerator wearable wireless sensing self-powered

Flow instability of supercritical hydrocarbon fuel in a multi-channel cooling system

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Chinese Journal of Aeronautics 2024年第2期37卷 283-295页

作者： Yichao jin Kun wu Xuejun FAN Institute of Applied Physics and Computational Mathematics Beijing 100094China Institute of Mechanics Chinese Academy of SciencesBeijing 100190China School of Engineering Science University of Chinese Academy of SciencesBeijing 100049China

Thermally-induced flow instabilities are a critical issue in multi-channel regenerative cooling *** particular,the interactions between Density-Wave Oscillations(DWO)and Flow Maldistribution(FMD)can result in complex and disastrous instability *** study investigates the instability behaviors of hydrocarbon fluid in a four-channel system with a constant heat flux ratio using both frequency-and time-domain *** the heat flux increases,the in-tube flow sequentially destabilizes in each channel and converges to new equilibrium states,leading to the emergence of FMD *** also causes the system eigenvalue to change repeatedly from negative to positive rather than increasing ***,the system eigenvalues are between those of the two most unstable channels,indicating that the stability behavior of the entire system is dictated by the most unstable *** FMD occurs,flow oscillations are activated in channels with weak stability,and the in-tube flow is observed to evolve into various flow patterns,including stable flow,self-sustained oscillation,oscillation divergence,quasiperiodic oscillation,and oscillation *** novel instability mode of oscillation excursion involves a spontaneous transition of operating *** oscillates from an equilibrium state and then stabilizes at a new operational state after oscillation-induced ***,the newfound stable state may also be only temporary,with the in-tube flow regressing to the initial state,resulting in quasi-periodic oscillation.

关键词： Cooling Supercritical fluids Hydrocarbons Flow instability Flow maldistribution Density-wave oscillations