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Optimal intensity and duration of cupping for minimizing possible mechanical skin deformation

Journal of Traditional Chinese Medicine 2021年第5期41卷 817-825页

作者： Bummo Ahn Soobyeong Kim Robotics R&BD Group Korea Institute of Industrial TechnologyAnsan 15588Republic of Korea Department of Robotics and Virtual Engineering University of Science and TechnologyAnsan 15588Republic of Korea Wellness Technology R&D Center Natural Arin Medi CorporationSejongsi 30127Republic of Korea

OBJECTIVE:To identify the optimal intensity and duration of cupping that would minimize mechanical skin ***:We developed an optical measurement probe and system for measuring skin color values in real *** applied cupping at the following five Bladder Meridian *** investigate optimal intensity,negative pressure intensity was increased every 2 min up to 80 k *** investigate optimal time,10 measurement sites were selected and negative pressure intensities of 30,60,and 80 k Pa were applied for 5 min *** color information was analyzed by the following skin color values:red color saturation,erythema index,and melanin ***:The red color saturation and erythema index increased steadily up to 60 kpa negative pressure intensity,then decreased between 60 and 80 k ***,maximal values were observed at 60 k *** melanin index consistently increased with increasing negative pressure *** red color saturation and erythema index did not change after 20 s at 60 k Pa negative pressure *** negative pressure intensities below 80 k Pa,significant changes in melanin index were not observed after 20 *** 80 k Pa negative pressure intensity,the melanin index exhibited an increasing pattern for200 s,then showed no ***:To minimize skin deformation,60 k Pa and 20 s were the appropriate intensity and duration when using red color saturation and erythema index as diagnostic *** of the increasing pattern up to 80 k Pa negative pressure intensity,the optimal intensity of melanin index could not be *** applying 80 k Pa negative pressure intensity and using melanin index as the diagnostic index,we recommend a duration of 200 s.

关键词： ecchymosis petechiae pigmentation erythema melanins

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Multi-body dynamic simulation research on the influence of piston engine crankshaft thrust bearings abrasion

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High technology Letters 2016年第4期22卷 426-435页

作者：么子云 Jiang Zhinong Li Xin Jia Yang Zhang Jinjie Diagnosis and Self-Recovery Engineering Research Center Beijing University of Chemical Technology Safety Detection and Intelligent System R&D of Beijing Rail Transit Engineering Research Center Beijing Rail and Transit Design & Research Institute CO.LTD

Fault diagnosis studying on piston engine,crankshaft and gearbox is focused in this paper. The thrust bearing abrasion caused by axial movement of the crankshaft will affect the force of timing gears and oil pump gears,which will result in the fracture of gears,abnormal ignition,connecting rod cracking and collision of cylinder. Simulation based on CrEO software is done to build three-dimensional models of crankshaft and gears of a WP10 diesel engine. The models are imported into AdAMS to complete multi-body dynamics simulations. The force analysis of gears in different kinds of axial movements is finished and variations rules of gear dynamic load is obtained. The presented results show that the crankshaft axial movement can cause overload and vibration on gears. Combined with the realistic case data,the fault feature through simulation research is validated and early warming parameters of gear fault are proposed.

关键词： crankshaft piston engine axial movement gear multi-body simulation

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CO catalytic oxidation over Pd/CeO2 with different chemical states of Pd

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rare Metals 2020年第7期39卷 800-805页

作者： Guo-Feng Zhou Jian Ma Shan Bai Li Wang Yun Guo School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China Research Institute of Industrial Catalysis East China University of Science and TechnologyShanghai 200237China Equipment R&D Center China Nuclear Power Technology Research InstituteShenzhen 518000China

Three Pd/CeO2 catalysts were,respectively,prepared by reduction-deposition and impregnation method(IMP)to investigate the effect of chemical state of Pd on CO *** kinds of surface Pd species,namely PdO and Pdδ+(2<δ≤4)in PdxCe1-xO2,were identified in all Pd/CeO2 samples although their relative ratios in each sample were *** PdxCe1-xO2 species were found to be very active for CO oxidation,and it could act as a channel by which active oxygen species can be transferred from CeO2 to Pd species for CO *** results reveal that the preparation method can severely influence the chemical state of Pd which can further determine the activity for CO oxidation.

关键词： Supported Pd catalyst CeO2 Chemical state of Pd CO oxidation

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Quasi-Periodic replacement Policy for a Two-Unit Production System

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Journal of Shanghai Jiaotong university(Science) 2020年第3期25卷 398-406页

作者： GAO Wenke WANG Yu YANG Tianshu JI Hong CHEN Yin College of Energy and Power Engineering Lanzhou University of TechnologyLanzhou 730050China Technical Center R&D DepartmentYEAL Electric Co.Ltd.Changchun 130113China

Maintenance optimization of periodic replacement for mono-unit production system is a widely discussed *** practice,the replacement for a parallel production system with multi-unit served by one repairman is *** replacement action is often implemented in a maintenance window at random,although the replacement period appears as a quasi-periodic *** optimize these maintenance policies,this study analyzes a bivariate quasi-periodic replacement policy (T,W) for a two-unit parallel production system with a maintenance window and one *** unit of the system is replaced when either a failure occurs or a replacement plan comes in the maintenance window,whichever comes *** one of the two units is in the replacement,the other may continue operating or waiting until the replacement is *** optimal replacement window [T*,T* + W*] can be obtained by jointly considering the system's long-running cost rate and the availability using the genetic *** study also introduces three examples of the production system with different types of units to illustrate the proposed policy.

关键词： quasi-periodic replacement policy maintenance window two-unit production system one repairman

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An efficient method for localization based on TdOA and FdOA 4th

An efficient method for localization based on TDOA and FDOA

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4th International Conference on Electronics, Communications and Networks, CECNet2014

作者： Wang, YunLong Huang, Kai Zhi Wu, Ying National digital switching system engineering & Technological R&D center China Zhengzhou Institute of Information and Technology China

ISBN: (纸本)9781138028302

Most communication systems for localization use the measurements based on joint estimation of time-difference of arrival (TdOA) and frequency-difference of arrival (FdOA). In this study, an efficient and robust method using maximum likelihood estimator based on weighted least square (WLS) criterion is proposed. The emitter localization is transformed to the search of the minimum value regarding the largest eigenvalue of information matrix corresponding to each geo-grid. Computer simulations are included to verify the development and compare the estimator performance with the conventional methods in both near-field and far-field scenarios. © 2015 Taylor & Francis Group, London.

关键词： Time difference of arrival

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Cavity-backed MEMS patch antennas on double-layer silicon wafers

Cavity-backed MEMS patch antennas on double-layer silicon wa...

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IEEE Antennas and Propagation Society International Symposium, APS 2006

作者： Koga, Yoko Yoshida, Yukihisa Yamashita, Akira Hamaguchi, Tsuneo Nishizawa, Kazushi Taguchi, Motohisa Nishino, Tamotsu Miyashita, Hiroaki Makino, Shigeru Mitsubishi Electric Corporation Information Technology R&D Center 5-1-1 Ofuna Kamakura247-8501 Japan Advanced Technology R&D Center Manufacturing Engineering Center 8-1-1 Tsugkaguchi-honmachi Amagasaki661-8661 Japan

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Biomimetic Quadruped robot with a Spinal Joint and Optimal Spinal Motion via reinforcement Learning

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Journal of Bionic engineering 2021年第6期18卷 1280-1290页

作者： Young Kook Kim Woojin Seol Jihyuk Park LV R&D Team Electro-technology R&D CenterLS Electric Co.LtdCheongju28437Republic of Korea Digital Innovation Unit Korea Hydro&Nuclear Power Co.Ltd1312-gil YuseongdaeroYusung-guDaejeon34101Republic of Korea Department of Automotive Engineering College of Mechanical and IT EngineeringYeungnam University280 Daehak-roGyeongsanGyeongbuk38541Republic of Korea

Feline animals can run quickly using spinal joints as well as the joints that make up their four *** paper describes the development of a quadruped robot including a spinal joint that biomimics feline *** developed robot platform consists of four legs with a double 4-bar linkage type and one simplified rotary *** addition,Q-learning,a type of machine learning,was used to find the optimal motion profile of the spinal *** bounding gait was implemented on the robot system using the motion profile of the spinal joint,and it was confirmed that using the spinal joint can achieve a faster center of Mass(CoM)forward speed than not using the spinal *** the motion profile obtained through Q-learning did not exactly match the spinal angle of a feline animal,which is more multiarticular than that of the developed robot,the tendency of the actual feline animal spinal motion profile,which is sinusoidal,was similar.

关键词： Quadruped robot system Bioinspired methods Legged robots Machine learning Q-learning

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Software Quality Measurement Modelling Using AHP and Promethee Methods 6

Software Quality Measurement Modelling Using AHP and Prometh...

引用

6th International Conference on Computer Science and engineering, UBMK 2021

作者： Caloglu, Zeki Vural Zontul, Metin Bagriyamk, Sciami Yemen, Ilkay R&D Center Turkcell Technology Istanbul Turkey Department of Management Information Systems Istanbul Ayvansaray University Istanbul Turkey Department of Software Engineering Ni santasi University Istanbul Turkey R&D Center Turkell Technology Istanbul Turkey

ISBN: (纸本)9781665429085

As competition in tlie industries relying on software increases, software product quality has become a prominent factor in the competition since quality issues within software-applications have a drastic effect on the organizations' reputation, and their customers experience. It has become more important to define and follow software quality metrics in order to determine the current situation in terms of quality of the developed software applications and to ensure continuous improvement. Within the scope of this paper, software products belonging to a technology company were ranked in terms of quality based on the scores assigned to software development metrics. The metric values were evaluated by Analytic Hierarchy Process (AHP) method and that result was used by P r O M E T H E E method for ranking the software products. This software quality measurement model can help people to produce their institutional standards over international standards by considering the best practices generated over the time. © 2021 IEEE

关键词： Analytic hierarchy process

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Fabrication of polypyrrole nano-array modified carbon paper electrodes for enzymatic salivary glucose detection

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Microchemical Journal 2025年 213卷

作者： Pan, Li-Yu Liu, Ching-Hao Lai, Yi-Ting Lee, Chi-Young Gupta, Shivam Tai, Nyan-Hwa Department of Materials Science and Engineering National Tsing Hua University No. 101 Sec. 2 Kuang-Fu Road Hsinchu 300 Taiwan Department of Materials Engineering Ming Chi University of Technology New Taipei City 24301 Taiwan Center for Plasma and Thin Film Technologies Ming Chi University of Technology New Taipei City 24301 Taiwan Biochemical Technology R&D Center Ming Chi University of Technology New Taipei City 24301 Taiwan Institute of Analytical and Environmental Sciences National Tsing Hua University No. 101 Sec. 2 Kuang-Fu Road Hsinchu 300 Taiwan

This study addresses the pressing need for improved, patient-friendly monitoring methods in response to the increasing global prevalence of diabetes. In this work, we present a noninvasive sensor for detecting glucose concentrations in saliva, denoted as the GOx/PEI/PPy/CP electrode, which is fabricated by combining polypyrrole (PPy), polyethylenimine (PEI), and glucose oxidase (GOx) on a carbon paper (CP) electrode. The fabrication process involves the electro-polymerization of PPy onto CP-based substrates, resulting in growth of the vertically aligned PPy nanotubes, followed by GOx immobilization using PEI as a binder. It is observed that the vertically aligned conductive PPy nanotubes significantly enhance catalytic ability, increase surface area, and reduce charge transfer resistance. The as-fabricated GOx/PEI/PPy/CP electrode demonstrates a high sensitivity of 222.25 μA·mM⁻¹·cm⁻² with a linear range from 20 to 700 μM glucose concentration and an r² of 0.9961. Additionally, the electrode exhibits exceptional stability and outstanding selectivity for glucose detection. In the tests of artificial saliva, a viscous medium, the GOx/PEI/PPy/CP electrode displays impressive sensitivity of 174.23 μA·mM⁻¹·cm⁻², maintains a linear range from 100 to 700 μM glucose concentration, and achieves a high r² of 0.9952. The GOx/PEI/PPy/CP electrode effectively covers the salivary glucose concentration range of both healthy individuals and diabetic patients, demonstrating strong suitability for noninvasive glucose monitoring and representing a notable advancement in diabetes management. © 2025 Elsevier B.V.

关键词： diabetes Electrochemical analysis Glucose oxidase Glucose sensor Polypyrrole

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3d geomechanical model construction and application of deep shale gas in the Luzhou Block, Sichuan Basin 57

3D geomechanical model construction and application of deep ...

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57th US rock Mechanics/Geomechanics Symposium

作者： Wang, Yuan Yang, Henglin Fu, Li Chen, Gang Yuan, Guangjie Zhang, Heng Wang, Zixin CNPC Engineering Technology R&D Company Limited Beijing China National Engineering Research Center of Oil & Gas Drilling and Completion Technology Beijing China

ISBN: (纸本)9780979497582

deep shale gas with a burial depth of 3500-5000m became an important area for shale gas development in China. The characteristics of the rock's mechanics and the in situ stress have a significant impact on the drilling and fracturing effects of horizontal wells. Finite element simulation is used to build an accurate in situ stress model from the data of acoustic logging, diagnostic fracturing injection test, FMI imaging logging, and stress measurement. The results show that Young's modulus and Poisson's ratio in the Luzhou block change vertically with the deposition time. The Longmaxi reservoir has an abnormally high pore pressure gradient which ranges from 16.7 kPa/m to 21.7 kPa/m. The stress regime of the Luzhou block is primarily strike-slip type, with an overburden pressure gradient of 25.5kPa/m, and a minimum horizontal stress gradient range of 18.8 to 24.5kPa/m. According to wellbore breakouts and acoustic emission experiments of cores, the ratio between σhmax and σhmin is 1.165. The horizontal principal stress of the reservoir increases with the increase of Young's modulus and pore pressure. The conclusion is that high-precision geomechanical models can effectively serve to improve the efficiency of drilling operations, improve the production of single wells and benefit development. © 2023 57th US rock Mechanics/Geomechanics Symposium. All rights reserved.

关键词： Pore pressure

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