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World Journal of Clinical Cases 2021年第1期9卷 252-261页

作者： Yu Hua Jia-Wen Yang Liu He Hua Xu Hai-Zhong Huo Chen-Fang Zhu Department of General Surgery Shanghai Ninth People's HospitalShanghai Jiao Tong University School of MedicineDiscipline Construction Research Center of China Hospital Development InstituteShanghai Jiao Tong UniversityShanghai 200011China

BACKGROUND Debate exists regarding the use of thermal ablation(TA)to treat papillary thyroid carcinoma(PTC).Some studies have recommended TA as a new,efcient and safe technology for *** this article,we report one case of a residual tumor and central lymph node metastasis(CLNM)after TA for *** SUMMARY A 63-year-old female underwent bilateral ultrasound(US)-guided radiofrequency ablation for *** months later,she was diagnosed as thyroid cancer with suspected CLNM by US and contrast-enhanced computed *** subsequent fine-needle aspiration(FNA)biopsies were *** to her strong personal preference,she underwent total thyroidectomy and central lymph node *** tissue adhesion and a difficult dissection were noted during the *** pathology of the frozen sections during the operation was still *** final pathology results of paraffin-embedded sections revealed residual tumor cells at the edge of the PTC and *** TA may lead to a residual tumor in patients with ***-up using US and FNA biopsy may not be adequate to evaluate the residual *** should be carefully considered in PTC treatment.

关键词： Papillary thyroid carcinoma Thermal ablation Residual tumor Central lymph node metastasis Follow-up Case report

Broad bandwidth SOA-based multiwavelength laser incorporating a bidirectional Lyot filter

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Chinese Optics Letters 2018年第9期16卷 22-26页

作者： Abdul Hadi Sulaiman Muhammad Zamzuri Abdul Kadir Nelidya Md Yusoff Noran Azizan Cholan Fairuz Abdullah Ahmad Fauzi Abas Mohammed Thamer Alresheedi Mohd Adzir Mahdi Wireless and Photonic Networks Research center Faculty of Engineering University Putra Malaysia 43400 UPM Serdang Malaysia Institute of Power Engineering Universiti Tenaga Nasional Jalan IKRAM-UNITEN 43000 Kajang Malaysia Department of Physics Kulliyyah of Science International Islamic University Malaysia 25710 Kuantan Malaysia Razak School of Engineering & Advanced Technology Universiti Teknologi Malaysia Kuala Lumpur Jalan Sultan Yahya Petra 54100 Kuala Lumpur Malaysia Department of communication Engineering Faculty of Electrical and Electronics Engineering Universiti Tun Hussein Onn Malaysia 86400 Batu Pahat Malaysia Department of Electrical Engineering College of Engineering King Saud University Riyadh 11421 Saudi Arabia

We demonstrate a broad bandwidth multiwavelength laser based on a bidirectional Lyot filter and a semiconductor optical amplifier with a mechanism of intensity-dependent loss as the flatness agent. A wide bandwidth of a multiwavelength spectrum of 32.9 nm within a 5 dB uniformity is obtained under optimized polarization param- eters. For this case, the number of generated lasing lines is 329 with a fixed wavelength separation of 0.1 nm. The power stability of this multiwavelength laser is less than 1.35 dB within 200 min time frame. This shows that the bidirectional Lyot filter provides an alternative option for multiwavelength generation in laser systems.

关键词： SOA Broad bandwidth SOA-based multiwavelength laser incorporating a bidirectional Lyot filter PMF HWP

Research of MCU-based Robot Fish with Caudal Fin

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Research of MCU-based Robot Fish with Caudal Fin

Solenoid Actuator Design for Improvement of Response Speed

第26届中国控制与决策会议

作者： Yawei Qu Songlin Chen Jie Ma Control and Simulation center Harbin Institute of Technology

This paper designs a MCU-based robot fish with caudal fin in order to model the robot fish and verify the related control methods. Firstly, this paper presents an overall design according to the functions required and then chooses the ideal servo motor after calculating its parameters based on the amplitude and frequency of the sine law. In addition, the controller, the inertial navigation model, the wireless communication model, the power supply, the electric circuit and the shell is designed and implemented considering of the limitation of the speed, interface, and cost and so on. In the software design, this paper solves the problem that the MCU is inefficient on the calculation of the float with the method of looking up the sine table, so that the SPWM wave drives the servo motor smoothly. With the program of IIC and SPI bus on the MCU and the control program based on Labview on PC, this paper realizes the wireless communication between the robot fish and PC, making the data collection and remote control possible. In the last, the robot fish is tested.

关键词： Robot Fish Servo Motor Data Collection Wireless communication

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Journal of Energy and Power Engineering 2016年第5期10卷 324-333页

作者： Baek Ju Sung Reliability Assessment center Korea Institute of Machinery & Materials Daejeon 34103 Korea

The main design factors which effect on operating speed of solenoid actuator for valve operation are mass of plunger, electromagnetic motive force, inductance and return spring, and these factors are not independent but related with each other in view point of design and electromagnetic theory. It is impossible to increase the operating speed by only change the value of any one design factor. The change of any one value results in change of any value related it in various design factors. Permanent magnets are as assistant materials which make higher flux density in air gap. Electromagnetic motive force in controlled only by current. This paper presents a speed increasing design method of solenoid actuator using a solenoid, by some governing equations which are composed of electromagnetic theory and empirical knowledge, and proved the propriety by experiments.

关键词： Solenoid actuator high speed servo valve permanent magnet non-magnetic ring plunger yoke performance test attraction force frequency response.

Component-Based Software Trustworthiness Fuzzy Analytic Hierarchy Process Model

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Journal of Beijing Institute of Technology 2010年第2期19卷 170-176页

作者：石剑飞闫怀志秦玮王文同 School of Mechatronics Engineering Beijing Institute of Technology Armament Price Management center PLA General Armament Department School of Software Beijing Institute of Technology Network Support Management Department Resource Management DepartmentAgricultural Bank of China

For a more accurate and comprehensive assessment of the trustworthiness of component-based soft- ware system, the fuzzy analytic hierarchy process is introduced to establish the analysis model. Combine qualitative and quantitative analyses, the impacts to overall trustworthiness by the different types of components are distinguished. Considering the coupling relationship between components, dividing the system into several layers from target layer to scheme layer, evaluating the scheme advantages disadvantages by group decision-making, the trustworthiness of a typical J2EE structured component-based software is assessed. The trustworthiness asses model of the software components provides an effective methods of operation.

关键词： component-based software trustworthiness analysis fuzzy analytic hierarchy process J2EE structure

Theoretical investigation on self-recovery regulation method for diesel engine misalignment through co-simulation

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High Technology Letters 2021年第3期27卷 238-248页

作者： Jiang Zhinong Wang Zijia Mao Zhiwei Zhang Jinjie Wang Chenguang Huang Yifei Diagnosis and Self-Recovering Engineering Research center Beijing University of Chemical TechnologyBeijing 100029P.R.China Beijing Bohua Anchuang Technology Co. LtdBeijing 101399P.R.China

Misalignment is one of the most common faults for the diesel *** order to eliminate the misalignment fault of the diesel engine in the process of operation,a targeting self-recovery regulation system is constructed by using a movable base and displacement *** is monitored and detected in real time,the value of misalignment is calculated rapidly and accurately,andintelligent decision is ***,the base is moved reversely with a definite target to drive the shaft to translate or rotate,so that the shafts can be recovered to alignment online.A co-simulation model for the self-recovery system is established which consists of a dynamic model of the crankshaft system and control *** self-recovery regulation process of misalignment is *** simulation results show that the system can accurately calculate the misalignment values,with an error of less than 5%,and can automatically eliminate the misalignment fault of the diesel engine *** research results provide theoretical support for the self-recovery regulation of misalignment fault,and due to the universality of structure and principle,the self-recovery system is not only suitable for diesel engine,but also for other rotating machineries.

关键词： diesel engine misalignment fault monitoring and detection targeting self-recovery co-simulation

New strategy during complicated open appendectomy: Convert open operation to laparoscopy

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World Journal of Gastroenterology 2014年第31期20卷 10938-10943页

作者： Jin-Hui Zhu Wei Li Kai Yu Jia Wu Yun Ji Jian-Wei Wang Department of General Surgery and Laparoscopic center The Second Affiliated Hospital Zhejiang University School of Medicine Department of General Surgery Zhejiang Provincial People’s Hospital Department of Oncology the Second Affiliated Hospital Zhejiang University School of Medicine

AIM: To introduce a new strategy during complicated open appendectomy - converting open operation to laparoscopy.

关键词： Complicated appendectomy Open Laparoscopy Conversion Complication

Multi-objective Genetic Optimization for LCLS-II X-ray FEL

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Journal of Mechanics Engineering and Automation 2014年第8期4卷 632-638页

作者： Lanfa Wang Tor O. Raubenheimer SLAC (Stanford Linear Accelerator center) Stanford University California 94025 USA

The LCLS-II （linac coherent light source II） will build on the success of the world＇s most powerful X-ray laser： the LCLS （linac coherent light source）. It will add two new X-ray laser beams and room for additional new instruments, thus greatly increasing the number of experiments carried out each year. Multiple operation modes are proposed to accommodate a variety of user requirements. There are a large number of variables and objectives in the design. For each operation mode, MOGA （multi-objective genetic algorithm） is applied to optimize the machine parameters in order to minimize the jitters, energy spread, collective effects and emittance.

关键词： MOGA optimization FEL (free-electron laser).

Intraoperative Fracture of the Femur in Revision Total Hip Arthroplasty with a Fully HA-Coated Stem

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Open Journal of Orthopedics 2014年第3期4卷 70-76页

作者： David E. Rothem Lilah Rothem Alexander Lerner Tal Salamon Richard Hiscock Neil Bergman Warringal Private Hospital Heidelberg Australia Ziv Medical center Zefad Israel

A retrospective review was made of intraoperative femoral fracture prevalence in seventy nine consecutive, cementless, fully HA-coated stems used for revision hip arthroplasty. Three patients were lost to follow up. Intraoperative fracture occurred in 15 (20%) femurs. Fractures occurred during cement removal (3/15) or insertion of the implant (12/15). All fractures were identified using intraoperative biplane X-ray, and were treated during the same operation. The clinical outcome of both groups (with or without fractures) was similar. The risk of intraoperative fracture was not statistically related to any demographic features or operative technique. Intraoperative radiographs are therefore mandatory in revision hip arthroplasty in order to diagnose and treat the common complication of femur fracture appropriately.

关键词： Revision Hip Arthroplasty Intraoperative Fracture Fully Coated HA Stem Femoral Periprosthetic Fracture

Energy Internet Promotes the Reform and Development of Natural Gas Industry

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China Oil & Gas 2016年第2期23卷 30-35页

作者： Guo Jiaofeng Resources and Environmental Policy Research Institute Development Research Center of the State Council

Not only being abundant in resources, natural gas also helps power grids consume wind energy, solar energy and etc. The promotion of natu ral gas is an essential zoay to facilitate the development of nezo energy and complete the transition to an energy system where the renewable energy is dominant. The operation of energy Internet with a concept of equal, open, cooperative and sharing, and the optimization of a combined energy of gas, electricity, heating and cooling, could significantly improve the energy efficiency. Meanwhile, the development of energy lnternet technology will subvert the existing division of energy industry, and generate new commercial formats with features of highly openness. It will also subvert some existing market rules, change the governance methods, generate renovations in organizations, business models and government management methods, thus requires further revolution in energy industry. In order to promote the rapid and healthy development of ＂lnternet plus＂ natural gas industry, a series of policies and precautions are needed to be inhvduced and improved.

关键词： Natural gas, Energy internet Energy revolution Development