ANALYSIS ON VIBRATION MODAL OF U-BIMETALLIC FINNED TUBES by MA TengFei, GUO JianYing, SHA FengHuan

“…U-bimetallic finned tube is a new widely used heat exchange component.In order to predict and control the flowinduced vibration damage of U-bimetallic finned heat exchange tubes,their natural frequencies must be calculated accurately.Inplane and out-of-plane vibration modal of U-bimetallic finned tubes were investigated by means of the hammering method and finite element method.The influence of arc bending radius R of U-bimetallic finned tubes on their natural frequencies was analyzed.The finite element simulation results of natural frequencies of U-bimetallic finned tubes were compared with the measured values for free-free boundary condition,the maximum error of the first 18 order frequencies is 7.3%.The natural frequencies of U-bimetallic finned tubes decrease with increasing the arc radius R for clamped-hinged case.…”
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Point-of-care tests in the emergency medical services: a scoping review by T. H. M. Moore, S. Dawson, K. Kirby, R. Body, A. Thompson, Y. O. Adepoju, R. Perry, H. Nicholson, J. Dinnes, K. Mitchell, J. Savović, S. Voss, J. R. Benger

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On finitely equivalent continua by Janusz J. Charatonik

“…For positive integers m and n, relations between (hereditary) m- and n-equivalence are studied, mostly for arc-like continua. Several structural and mapping problems concerning (hereditarily) finitely equivalent continua are formulated.…”
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REDUCING ELECTRICITY CONSUMPTION FOR IRON AND STEEL SMELTING by L. E. Rovin, S. L. Rovin

“…It is shown that the introduction of high-temperature heating installation charge fusion provides increased security, stability of operation arc, reduced noise to 75–85 dB, the elimination of fugitive emissions in the work zone…”
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ADDITIVE MODEL OF FORECASTING OF SCRAP METAL CONSUMPTION AT MELT OF STEEL TAKING INTO ACCOUNT SEASONAL FLUCTUATIONS by V. I. Djachenko, D. I. Soshchenko, M. V. Ignatjev

“…The offered and realized additive model of calculation of specific norm of consumption of scrap metal at arc electric steel-smelting furnaces has allowed to reduce considerably the error at calculation of the planned cost price of production.…”
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The Relationship Between Hip Range of Motion and Pitching Kinematics Related to Increased Elbow Valgus Loads in Collegiate Baseball Pitchers: A Pilot Study by Giorgio Zeppieri Jr., Michelle L Bruner, Jon P Michelini, Kevin W Farmer

“…Inclinometer measurements were used to measure hip internal (IR), external (ER) ROM, and total rotational arc at the hip (IR + ER ROM). Correlations were used to evaluate the association between hip IR, ER, and total rotational arc ROM (TRARC) and six kinematic variables…”
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DISTANCE ESTIMATION TO THE INTERPHASE-FAULT LOCATION IN THE DISTRIBUTIVE AIR-LINE GRIDS BASED ON ANALYSIS OF THE HARMONIC COMPONENT PARAMETERS OF THE OPERATING EMERGENCY CONDITIONS by E. V. Kalentionok, Ye. O. Yakovchits

“…The authors performed calculation of normal and emergency modes utilizing computer program MatLab in dynamic simulating environment Simulink. The arc is represented by a block describing the linearized dynamic volt-ampere characteristic of the arc. …”
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Simulation Study on the Impact Response of Barrels with Different Rifling Profiles during Bullet Engraving by Zhifang Wei, Yangyang Cheng, Zhiwei Wang, Yanpeng Lin

“…The stress values of the multiarc and multilateral-arc rifling were far below that for the rectangular and trapezoidal rifling. …”
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Visible Portion of Anterior Teeth at Rest and Analysis of Different Smile Characteristics in the Saudi Population of the Jeddah Region by Mohamed Abdelmageed Awad, Doaa Saleh Alghamdi, Aljawharah Talal Alghamdi

“…Average smile line and consonant smile arc were the most common characteristics. It was concluded that both age and gender affect the characteristics of tooth display at rest and in smiling. …”
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The role of KNDy neurons in human reproductive health by Aki Oride, Haruhiko Kanasaki

“…ARC Kiss1 neurons co-express neurokinin B (NKB) and dynorphin and are thus termed KNDy neurons. …”
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Analysis and Optimization of Tooth Surface Contact Parameter of ZC1 Worm Gear by Song Lijuan, Ji Weixi, Xie Jian, Wang Yu

“…Based on the meshing theory of ZC1 worm gear pair,the tooth surface contact parameters are analyzed by using MATLAB.The results show that the axial module,center distance,lead angle,radius of arc tooth profile of grinding wheel have great influence on tooth surface contact parameters.In general,the center distance is selected in the beginning of design,so the axial module,lead angle,radius of arc tooth profile of grinding wheel are selected as design variable.For improving the meshing performance of worm gear pair,taking the induced normal curvature and lubrication angle as objective function,and combining with the constraints of top thickness of worm,top thickness of worm wheel and undercutting,the optimum mathematical model is established.The improved particle swarm algorithm is adopted as optimization algorithm and the results show that the optimized lubrication angle is larger and induced normal curvature is smaller.The meshing performance of worm gear pair is improved effectively.…”
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Design of the New Flex Wheel Tooth Profile for Harmonic Drive Based on Transient Dynamics by Zheng Junjian, He Xueming, Li Pengchao

“…The new type of flexible gear tooth profile is obtained by fitting the tooth profile segment with the minimum meshing backlash, mainly combining the meshing backlash comparison of S-type flexible gear tooth profile, common tangent double circular arc flexible gear tooth profile and double circular arc flexible gear tooth profile. …”
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MILLING FORCE MODELING BASED ON EQUIVALENT TURNING FORCE AND OBLIQUE CUTTING FORCE MODEL (MT) by WU MingZhou, ZHANG GuangPeng, LIU MoHan, GOU JianFeng, ZHANG Peng

“…The accuracy of traditional milling force prediction model is low, and it is difficult to provide effective support for the reasonable selection of process parameters in practical production, by synthetically considering the equivalent turning force model of working angle, cutting edge arc and radius of tool tip arc, in this model, the actual turning tool is equivalent to the ideal turning tool model to identify the material constant, the chip flow angle and the average friction angle in the material constitutive equation, according to the oblique cutting model, the shear stress on the main shear plane and the F₀ vector of the unit cutting force at different cutting speeds are calculated, thus the instantaneous cutting force on the front face of the end mill can be calculated, the three-dimensional cutting force of end mill in X-Y-Z coordinate system is obtained by coordinate transformation. …”
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Impacts of Thermal Inertia Factor on Adiabatic Decomposition of 40% Mass Content DCP in Ethyl Benzene by Xiaojuan Wu, Liping Chen, Guoning Rao, Wanghua Chen, Ruili Yin

“…ARC experiment showed that with the increase of inertia factor (Φ), the measured initial decomposition temperature (Ton) would be higher and the caculated Ea and pre-exponential factor (A) would be greater. …”
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Late Ediacaran juvenile magmatism in the Variscan Monts-du-Lyonnais metamorphic complex (Massif Central, France) by Couzinié Simon, Laurent Oscar, Bouilhol Pierre, Chelle-Michou Cyril, Ganzhorn Anne-Céline, Gardien Véronique, Moyen Jean-François

“…Instead, it can be correlated to a juvenile Ediacaran magmatic event identified throughout the Variscan realm, interpreted as reflecting Cadomian arc/back-arc magmatism.…”
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Research on Design Method of Bionic Tooth Profile High-torque Synchronous Pulley by Shuai Mo, Lijuan Shi, Zongxiang Yue, Xiaolin Cao, Yunsheng Huang

“…Compared with the arc toothed synchronous belt pulley， the bionic toothed profile belt has a more reasonable load distribution and higher bearing capacity.…”
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Advanced visual sensing and control in CMT-based WAAM processes by Rui Yu, Wenhang Li, Mingfang Wu, Jianxin Wang, Qinglin Han, Jiayou Wang, Siyu Bing

“…Wire Arc Additive Manufacturing (WAAM) can flexibly produce high-performance parts that meet the requirements of deep-sea environments, but it has problems with insufficient molding accuracy and surface smoothness, which require improved precision and quality. …”
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Thermal upgrading of manganese ores prior to smelting by Eray S.

“…Ferromanganese smelting in electric arc furnaces is an energy-intensive process with corresponding CO2 emissions and environmental impacts. …”
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Region inpainting algorithm of mouth-muffles for facial recognition by Yue LI, Yaguan QIAN, Xiaohui GUAN, Wei LI, Bin WANG, Zhaoquan GU

“…Facial recognition under occlusion is a well-known difficult problem in real scenes.Especially after the outbreak of COVID-19, in airports, stations and other places that need to verify the identity of visitors, the mouth-muffle occlusion greatly reduces the facial features that can be important for identification, and the accuracy of face recognition algorithm decreases.Face de-occlusion was studied, and a novel framework was proposed to restore face, which used the edge generation network to generate edge maps.On this basis, the occluded region was restored by the region completion network while preserving identity information.In order to improve the performance, the spatial weighted adversarial loss and identity-preserving loss were introduced to train the above two networks.Then two face datasets with mouth-muffles were constructed by face landmarks.The experimental results show that the accuracy of facial recognition algorithm ArcFace on the face dataset restored by the proposed model was 98.39%, which was 4.13% higher than that of directly using ArcFace.…”
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Study on Status and Problem Research of Harmonic Gear Drive by Xiang Zhenlin, Li Ting, Yang Lin, Shang Yingrong

“…In the traditional tooth profile，the tooth profile has undergone the development stage from the linear tooth profile to the arc tooth profile，and then to the double arc tooth profile，the meshing characteristic and fatigue life at each stage are analyzed. …”
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