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Journal articles on the topic 'Quick return mechanism'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Hsieh, Wen-Hsiang, and Chia-Heng Tsai. "A STUDY ON A NOVEL QUICK RETURN MECHANISM." Transactions of the Canadian Society for Mechanical Engineering 33, no. 3 (2009): 487–500. http://dx.doi.org/10.1139/tcsme-2009-0033.

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This work aims to propose a novel design for quick return mechanisms, and the new mechanism is composed by a generalized Oldham coupling and a slider-crank mechanism. First, the kinematic dimensions that affect the time ratio are found by investigating the geometry of the proposed design. By transforming into its kinematically equivalent mechanism, and then the design equations of time ratio are derived. Furthermore, a design example is given for illustration. Moreover, the design is validated by kinematic simulation using ADAMS software. Finally, a prototype and an experimental setup are esta

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2

Rupanshu, Singh. "Analysis of Whitworth Quick Return Mechanism using ANSYS." Research and Reviews: Journal of Mechanics and Machines 3, no. 1 (2021): 1–8. https://doi.org/10.5281/zenodo.4777610.

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<em>Machines minimizes the effort and complete the work. They produce motion, by working on a specific mechanism. Machines in workshops like shaper machine works on the Whitworth quick return mechanism. It comprises the assemblage of cranks and sliders to convert rotatory motion into reciprocating motion. The aim of this report is to demonstrate the Whitworth mechanism by generating a virtual model and analyzing the motion of the setup. The velocity, acceleration, and force generated by the slider is determined and conclusion is provided for the application of mechanism for industrial purpose

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3

Zhou, Li Bin, and Huan Guo Chen. "Kinematics Simulation of Shaper Quick-Return Mechanism." Applied Mechanics and Materials 741 (March 2015): 607–10. http://dx.doi.org/10.4028/www.scientific.net/amm.741.607.

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Mechanical model and simulation model of shaper quick-return mechanism are introduced based on ADAMS. The number of rigid bodies is reduced by using composite joints constraint . It doesn’t need any other softwares and data interfaces in the simulation.The results prove the correctness of the simplified model.It improves the design efficiency and speed of simulation and provides a theoretical basis for the design and analysis of other six-bar mechanism.

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4

Podhorodeski, Ron P., Scott B. Nokleby, and Jonathan D. Wittchen. "Quick-Return Mechanism Design and Analysis Projects." International Journal of Mechanical Engineering Education 32, no. 2 (2004): 100–114. http://dx.doi.org/10.7227/ijmee.32.2.2.

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5

Hassaan, Galal Ali. "SYNTHESIS OF PLANAR MECHANISMS, PART XI: AL-JAZARI QUICK RETURN-MOTION MECHANISM." EPH - International Journal of Applied Science 1, no. 1 (2015): 7–13. http://dx.doi.org/10.53555/eijas.v1i1.5.

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This is the 11th research papers in a series of papers aiming at the optimal synthesis of planar mechanisms. The mechanism in hand is invented by Al-Jazari in the 12/13th century and is analyzed before by the author for a specific time ration, stroke and transmission angle. In the present work the mechanism is optimally synthesized for maximum time ratio and desired normalized stroke. Five functional constraints are defined to control the performance of the mechanism. The MATLAB optimization toolbox is used and four dimensions of the mechanism are assigned in a normalized form. Normalized stro

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6

ADEKUNLE, NURUDEEN OLATUNDE, KOLAWOLE ADESOLA OLADEJO, ISMAILA OLASUNKANMI SALAMI, and ADEWALE OREOLUWA ALABI. "DEVELOPMENT OF QUICK RETURN MECHANISM FOR EXPERIMENTATION USING SOLIDWORKS." Journal of Engineering Studies and Research 26, no. 3 (2020): 19–27. http://dx.doi.org/10.29081/jesr.v26i3.203.

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Quick Return Mechanisms (QRMs) are one of the essential accessories used in machine tools which involve reciprocating cutting action with a quick return stroke and a constant angular velocity of driving crank. The aim of this work was to simulate, design and construct a prototype of a QRM that can be used for demonstration and instrumentation. The QRM was simulated using Solidworks and a prototype was developed from the simulated results. The experiment was conducted using the prototype. The kinematic simulation of the Solidworks model was compared with the kinematics of motion of the prototyp

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7

Fung, Rong-Fong, Faa-Jeng Lin, and Rong-Jong Wai. "Quick-Return Servomechanism With Adaptive Fuzzy Neural Network Control." Journal of Dynamic Systems, Measurement, and Control 123, no. 2 (2000): 253–64. http://dx.doi.org/10.1115/1.1368113.

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The dynamic response of an adaptive fuzzy neural network (FNN) controlled quick-return mechanism, which is driven by a permanent magnet (PM) synchronous servo motor, is described in this study. The crank and disk of the quick-return mechanism are assumed to be rigid. First, Hamilton’s principle and Lagrange multiplier method are applied to formulate the mathematical model of motion. Then, based on the principle of computed torque, an adaptive controller is developed to control the position of a slider of the quick-return servomechanism. Moreover, since the selection of control gain of the adap

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8

SHEBL, M., and Y. YOUNS. "A PARAMETRIC STUDY OF THE SIX-BAR QUICK RETURN MECHANISM." International Conference on Applied Mechanics and Mechanical Engineering 2, no. 2 (1986): 183–91. http://dx.doi.org/10.21608/amme.1986.56816.

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9

Lee, Heow-Pueh. "Dynamics of a Flexible Rod in a Quick Return Mechanism." Journal of Mechanical Design 116, no. 1 (1994): 70–74. http://dx.doi.org/10.1115/1.2919379.

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The equations of motion in matrix form are formulated for a flexible rod in a quick return mechanism using Hamilton’s principle and the assumed mode method. The rod is considered as an Euler beam. The crank is assumed to be rigid and rotating at a constant angular speed. The translating-rotating joint connecting the crank to the flexible rod is assumed to be a frictionless moving point support for the flexible rod. This support is regarded as a very stiff spring acting on the rotating flexible rod. Results of numerical simulations are presented for various prescribed crank positions, crank len

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10

Ma, Xuan, and Yun Fang Gao. "The Nature and Design of No Quick Return Peculiarity of Crank Rocker Mechanism." Applied Mechanics and Materials 602-605 (August 2014): 29–32. http://dx.doi.org/10.4028/www.scientific.net/amm.602-605.29.

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In this paper, the condition of no quick return peculiarity of crank rocker mechanism is analyzed fist, then the character and design of this mechanism is analyzed. Especially, we developed the methods of smaller quick return’s crank rocker mechanism’s design, and lay the theoretical foundation for the mechanism’s design and application.

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11

Wadollah S. Al-Sabawi, Ahmad. "Theoretical Study and Computer Simulation of aModified Quick Return Mechanism(English)." AL-Rafdain Engineering Journal (AREJ) 20, no. 5 (2012): 92–102. http://dx.doi.org/10.33899/rengj.2012.61041.

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12

Nazaruddin, Nazaruddin, and Warman Fatra. "Analisis Kinematika pada Quick Return Mechanism dengan Menggunakan Metode Bilangan Kompleks." Proksima 1, no. 1 (2023): 18–24. http://dx.doi.org/10.31258/proksima.1.1.18-24.

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Kinematics analysis includes analysis of position, velocity and acceleration of the rods of a mechanism. The complex number method is a kinematic analytical way to express position, velocity and acceleration vectors in the form of complex numbers. The first step that needs to be done is to determine the position vector of the point to be analyzed, then determine the velocity and acceleration vectors by differentiating with time. After that is done, then the algorithm can be made. The mechanism used for this study is the quick return mechanism. The assumed data for this analysis is the angular

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13

Al-Khafaji, Hussein Mohammed Hussein, Nabil N. Swadi, and Auday Shaker Hadi. "Optimizing the Modified Whitworth Quick Return Mechanism Using Taguchi and ANOVA Methods." International Review of Mechanical Engineering (IREME) 16, no. 3 (2022): 118. http://dx.doi.org/10.15866/ireme.v16i3.21936.

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14

Shyam, Suraj, Shivam Kaul, Johnson Jesudoss, and Narendiranath Babu. "Improving The Efficiency of Stationary Concrete Pumps Using Whitworth Quick Return Mechanism." IOP Conference Series: Materials Science and Engineering 1123, no. 1 (2021): 012020. http://dx.doi.org/10.1088/1757-899x/1123/1/012020.

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15

Guo, Chengzhi. "DESIGN OF THE PITCH CURVES OF NONCIRCULAR GEARS FOR QUICK RETURN MECHANISM." Chinese Journal of Mechanical Engineering 41, no. 11 (2005): 221. http://dx.doi.org/10.3901/jme.2005.11.221.

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16

Okoronkwo, C. A., B. O. Ezurike, R. Uche, J. O. Igbokwe, and O. N. Oguoma. "Design of a hand water pump using a quick-return crank mechanism." African Journal of Science, Technology, Innovation and Development 8, no. 3 (2016): 292–98. http://dx.doi.org/10.1080/20421338.2016.1163475.

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17

Toma, Georgeta. "Research on the kinematics of a mechanism with quick return of the oscillating arm." Romanian Journal of Petroleum & Gas Technology 3 (74), no. 1 (2022): 55–62. http://dx.doi.org/10.51865/jpgt.2022.01.06.

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The paper presents the analysis of a mechanism with quick return of its oscillating arm. In this scope it has been realized a computer program that permits simulating the studied mechanism. The results of the simulations are finally presented.

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18

Shahbaz, .M. Sheikh *. Sujata .P. Khartade Prof. S. .A. Dahake. "COMPUTER AIDED MODELING AND ANALYSIS OF CRANK AND SLOTTED LEVER QUICK RETURN MECHANISM." INTERNATIONAL JOURNAL OF ENGINEERING SCIENCES & RESEARCH TECHNOLOGY 6, no. 2 (2017): 651–56. https://doi.org/10.5281/zenodo.322500.

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In this paper we have calculated the time ratio and angle turned by crank during return stroke (α) for different lengths of crank for constant distances between the pivots. From these calculations we obtained maximum time ratio and the most efficient ratio of length of crank to the distance between the pivots. Also a CAM model of mechanism is made on PTC Creo parametric 3.0 for simulating the results. Various dimensions of links made on PTC Creo parametric 3.0 which give maximum time ratio are as shown in the figures. By using some suitable scale the links are fabricated to obtain the crank an

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19

FUNG, Rong-Fong, and Ken-Wang CHEN. "Constant Speed Control of the Quick Return Mechanism Driven by a DC Motor." JSME International Journal Series C 40, no. 3 (1997): 454–61. http://dx.doi.org/10.1299/jsmec.40.454.

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20

Beale, D. G., and R. A. Scott. "The stability and response of a flexible rod in a quick return mechanism." Journal of Sound and Vibration 141, no. 2 (1990): 277–89. http://dx.doi.org/10.1016/0022-460x(90)90840-v.

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21

Chang, Jer-Rong. "Coupling effect of flexible geared rotor on quick-return mechanism undergoing three-dimensional vibration." Journal of Sound and Vibration 300, no. 1-2 (2007): 139–59. http://dx.doi.org/10.1016/j.jsv.2006.07.046.

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22

Lu, Xinjian. "Kinematics Analysis of Multi-link Mechanism for Miniature Servo Press Based on Matlab." MATEC Web of Conferences 207 (2018): 02006. http://dx.doi.org/10.1051/matecconf/201820702006.

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The degree of freedom for a multi-link drive mechanism of a 50kN miniature servo press was calculated. The kinematics equations of the mechanism was established based on the rod group method. The choice or design basis for rod length and some hinge points were proposed. The multi-linkage mechanism’s line segment model was constructed in SolidWorks and a set of design parameters was obtained that met the requirements. The M file of kinematic equations were wrote and calculated in Matlab and the displacement, velocity and acceleration curve of the slider were obtained. Compared with the crank-sl

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23

Faa-Jeng Lin and Rong-Jong Wai. "A hybrid computed torque controller using fuzzy neural network for motor-quick-return servo mechanism." IEEE/ASME Transactions on Mechatronics 6, no. 1 (2001): 75–89. http://dx.doi.org/10.1109/3516.914394.

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24

Daadbin, A., and K. S. H. Sadek. "The Optimization of Dimensions of an Adjustable Mechanism for a Packaging Machine." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 203, no. 1 (1989): 37–40. http://dx.doi.org/10.1243/pime_proc_1989_203_186_02.

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Mechanisms form the basic geometrical elements of many mechanical devices including automatic packaging machinery, typewriters, textile and printing machinery, and others. A mechanism typically is designed to create a desired motion of a rigid body relative to a reference member by the help of gears, cam systems or spatial linkages. In flow pack machines a tube of wrapper containing the products moves with a uniform velocity, while the reciprocating heads move forward and backwards sealing different products. In an existing machine, these motions are produced by a rather complex mechanism invo

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25

Liu, Chin-Wei, Shyong Lee, Dean Chou, Shu-Han Hsu, and Chun Lin Chu. "Dimensional accuracy in quick plastic forming of aluminum alloy using demolding mechanism." Advances in Mechanical Engineering 13, no. 6 (2021): 168781402110217. http://dx.doi.org/10.1177/16878140211021731.

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This study focuses on quick plastic forming (QPF), product dimensional tolerances, and removal methods. The traditional curled metal shell mold in QFP, has limitations such as long process time and unstable quality. Therefore, this investigation designed a demolding mechanism, in order to improve the process efficiency and dimensional accuracy of QPF, in the manufacture of metal casings. The research results show that the proposed mechanism can significantly decrease the process time, because it replaces most of the operations of specimens movement after forming completely. The shorter process

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26

Ha, Jih-Lian, Jer-Rong Chang, and Rong-Fong Fung. "Dynamic analyses of a flexible quick-return mechanism by the fixed and variable finite-difference grids." Journal of Sound and Vibration 297, no. 1-2 (2006): 365–81. http://dx.doi.org/10.1016/j.jsv.2006.04.005.

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27

Beale, D. G., and R. A. Scott. "The Stability and Response of a Flexible Rod in a Quick Return Mechanism: Large Crank Case." Journal of Sound and Vibration 166, no. 3 (1993): 463–76. http://dx.doi.org/10.1006/jsvi.1993.1306.

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28

Qiu, Ying, Wei Min Li, and Zhi Wei. "Performance Analysis of Triangular Elbow Servo Press." Applied Mechanics and Materials 577 (July 2014): 240–43. http://dx.doi.org/10.4028/www.scientific.net/amm.577.240.

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The objective of this paper is to study performance of triangular elbow transmission mechanism for servo press. Then kinematics models are deduced and given. Kinematics curves along slider motion direction are drawn. Moreover, under the same driving condition, the effects of different link ratios on slider output motion are examined and compared with common six bar transmission mechanism in the article. Through motion curves comparison, it can be seen that this triangular elbow mechanism has significant force increasing effect and good quick-return characteristics. In addition, we carried on t

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29

Liu, Chen, Sheng-Dun Zhao, and Jing-Xiang Li. "Design and analysis of a novel seven-bar mechanical servo press with dual motors inputs." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 231, no. 20 (2016): 3855–65. http://dx.doi.org/10.1177/0954406216653777.

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This paper proposes a novel high capacity servo press system with two servo motor inputs and high ratio force amplifier mechanism for metal forming. First, the press structure was expressed. The force amplifier was made of seven-bar mechanism which possesses quick-return character and high ratio force amplifier. The symmetric structure balanced the force in horizontal direction, and dispersed the forces on two transmission routes. In theoretical study of the new structure, kinematic and dynamic analyses were obtained by examining the geometry of the structure. The performance of press was disc

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30

Fung, R. F., and F. Y. Lee. "DYNAMIC ANALYSIS OF THE FLEXIBLE ROD OF QUICK-RETURN MECHANISM WITH TIME-DEPENDENT COEFFICIENTS BY THE FINITE ELEMENT METHOD." Journal of Sound and Vibration 202, no. 2 (1997): 187–201. http://dx.doi.org/10.1006/jsvi.1996.0832.

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31

Chen, Shutong, Xiushi Shen, and Chuwei Ye. "Kinematic and Dynamic Characteristics in a Crank-rocker Four-bar Linkage." Journal of Physics: Conference Series 2029, no. 1 (2021): 012033. http://dx.doi.org/10.1088/1742-6596/2029/1/012033.

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Abstract Planar four-bar linkage is widely used in mechanical engineering. The degree of freedom of the linkage is one, and different organizations of the lengths of the four bars could distinguish it in several different types. The one is the crank-rocker mechanism. The parameters decided by the lengths of the bars are the wiping angle, transmission angle, and the quick-return ratio, which were analyzed in this report. Then the three-dimensional model and the physical model were built. In addition, the kinematic characteristics of the prototype were deduced by simulation, and some experimenta

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32

Chen, Fu-Chen, Yih-Fong Tzeng, and Meng-Hui Hsu. "Innovative Design of an Elliptical Trainer with Right Timing of the Foot Trajectory." Advances in Technology Innovation 5, no. 3 (2020): 190–201. http://dx.doi.org/10.46604/aiti.2020.5645.

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The existing elliptical trainer cannot provide the user with the real jogging exercising mode and does not meet the principles of ergonomics. The purpose of this paper is to propose and study an innovative elliptical trainer that imitates the right timing of the foot trajectory while jogging. First of all, this study proposes and illustrates the structure and function of the innovative elliptical trainer with quick-return effect. Then, by using vector-loop method and motion geometry of the mechanism, the proposed innovative mechanism is studied kinematically. A design example is presented for

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33

Fung, Rong-Fong, and Ken-Wang Chen. "VIBRATION SUPPRESSION AND MOTION CONTROL OF A NON-LINEARLY COUPLED FLEXIBLE QUICK-RETURN MECHANISM DRIVEN BY A PM SYNCHRONOUS SERVO MOTOR." Journal of Sound and Vibration 212, no. 4 (1998): 721–42. http://dx.doi.org/10.1006/jsvi.1997.1470.

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34

Thapa, Santosh, Dhiraj Singh, Oshan Shrestha, Ashish Rajthala, and Ranjib Kumar Jha. "Functional Outcome of Metacarpal Fractures Managed by Internal Fixation with Miniplate and Screws: A Cross-Sectional Study." Journal of Nobel Medical College 13, no. 2 (2024): 45–49. https://doi.org/10.3126/jonmc.v13i2.74450.

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Background: Metacarpal fractures account for up to 40% of all hand fractures. This is commonly encountered among the general population, labour workers, and sportsmen. The appropriateness of the intervention in such cases becomes very important for treatment, rehabilitation, and an early return to work. The objective of this single-centre prospective study is to assess the outcomes of mini-plates and screws in the management of metacarpal shaft fractures. Materials and Methods: This study was conducted among patients with metacarpal fractures. Ethical clearance was obtained before the commence

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Xiong, Shi, Lin He, Qiang Wei, Lijun Gou, Yunyun Feng, and Qiaojun Luo. "Design and Experiment of Automatic Fish Bleeding Machine." AgriEngineering 7, no. 4 (2025): 91. https://doi.org/10.3390/agriengineering7040091.

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Bleeding constitutes an essential stage in pre-processing operations for fish products. In China, this process remains entirely manual, characterized by low efficiency, high labor intensity, and operational hazards, creating a pressing demand for versatile automated equipment in the market. To address the mechanization requirements for efficient freshwater fish bloodletting, we developed an automated fish bleeding machine based on gill-based blood extraction principles, incorporating an impact-triggered positional bleeding methodology. The positional triggering mechanism was engineered through

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36

Amendola, G., Ignazio Dimino, Antonio Concilio, Rosario Pecora, and Francesco Amoroso. "Actuation System Design for a Morphing Aileron." Applied Mechanics and Materials 798 (October 2015): 582–88. http://dx.doi.org/10.4028/www.scientific.net/amm.798.582.

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In the field of European and International morphing structures projects, the CRIAQ MD0-505 enables collaboration among Italian and Canadian research centers and industries paying particular attention to the development of innovative design in the area of adaptive technologies. The main project goals involve the design of a wing trailing edge device capable to improve aerodynamic efficiency in all the flight envelope leading to fuel consumption reduction with positive impact on aircraft weight. This paper deals with the design and modeling of a novel actuation system of a full scale morphing ai

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37

Wang, Hao, Ken Yikai Wu, and Wenhui Lv. "Research on Financial Risk Identification and Prevention of Small and Medium-sized Construction Enterprises Based on ISM-MICMAC Model." BCP Business & Management 30 (October 24, 2022): 688–97. http://dx.doi.org/10.54691/bcpbm.v30i.2518.

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This study uses the ISM (Interpretative Structural Modelling) to model, relies on expert judgment to obtain better results, reveals the hierarchical relationship between each risk, and indicates its role path in small and medium-sized construction enterprises. At the same time, the driving and dependent coordinator diagram of the MICMAC (Matriced Impacts Corises-Multiplication Appliance Classment) is used to further analyze the interaction mechanism of each risk. The study found that the financial risk identification was divided into the transition structure of 6 levels and 21 classes. Gross p

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Dovbush, Taras, Nadia Khomyk, and Anatoliy Dovbush. "Study of the work of the grinder in different types of meat cropping." Scientific journal of the Ternopil national technical university 111, no. 3 (2023): 76–83. http://dx.doi.org/10.33108/visnyk_tntu2023.03.076.

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In the work, analytical studies were performed to determine the working time of the grinder on different types of meat grinding, depending on the design parameters of the grinding mechanism. The production of sausage products, despite the high level of competition, is attractive for producers. The opening of such a production is a profitable investment for starting a business, which gives a relatively quick financial return due to a quick change in the range of products made according to original recipes. One of the main technological operations for the preparation of sausage products is the g

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Olena, Dashkovska. "Legal bases status quo children who were unafficiently carried out of Ukraine." ScienceRise: Juridical Science, no. 1(11) (March 31, 2020): 4–10. https://doi.org/10.15587/2523-4153.2020.207873.

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The article is devoted to analysis of international law and norms of the operating civil legislation of Ukraine, which regulates the order of removal of a child from the country of permanent residence. The content of the principle of the best interests of a child identified a number of issues, which in practice can lead to the adoption of unreasonable decisions to return a child from abroad. Separately stated that the child should grow up in conditions of care and responsible parenting in an atmosphere of love, moral and material security; juvenile children, except when there are exceptional c

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Cui, Fangpeng, Qiang Wu, Chen Xiong, Xiang Chen, Fanlan Meng, and Jianquan Peng. "Damage Characteristics and Mechanism of a 2010 Disastrous Groundwater Inrush Occurred at the Luotuoshan Coalmine in Wuhai, Inner Mongolia, China." Water 12, no. 3 (2020): 655. http://dx.doi.org/10.3390/w12030655.

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On 1 March 2010, a disastrous groundwater inrush occurred at the Luotuoshan coalmine in Wuhai (Inner Mongolia, China). Great effort was taken during the post-accident rescue. However, triggered by a large amount of groundwater rushed in from the Ordovician limestone aquifer underlying the No.16 coal seam through the fractured sandy claystone and the karst collapse column, it caused great damage, including 32 deaths and direct economic losses of over 48 million yuan. The groundwater inrush originated from the floor heave in the air return gallery of the No.16 coal seam. The peak inflow rate was

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41

Liu, Mingtian. "Research on Relationship Between Governance Structure and Corporate Performance of Chinese Technology Companies." Advances in Economics, Management and Political Sciences 94, no. 1 (2024): 112–22. http://dx.doi.org/10.54254/2754-1169/94/2024ox0155.

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In the post-pandemic age of 2023, the economy is in recovery. Despite the distinctive qualities of technology firms, such as quick development and high levels of innovation, they face problems such as economic downturns and funding issues. As a result, the corporate governance structure is critical to guaranteeing the firms' long-term viability. The purpose of this article is to examine 252 publicly traded technology companies and investigate the link between corporate financial performance and corporate governance arrangements. This article used Ordinary Least Squares (OLS) analysis to look a

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42

Chupryna, Kh, A. Derkach, A. Rovenskyy, and D. Huliaiev. "Visual and graphic defragmentation of life and operational and production cycles of a construction enterprise according to standardized stages." Ways to Improve Construction Efficiency 1, no. 50 (2022): 101–9. http://dx.doi.org/10.32347/2707-501x.2022.50(1).101-109.

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This article proposes a structured mechanism for forming the trajectory of the transformation of the construction enterprise management system. The system of indicators that currently assess the level of sustainability of the enterprise is described; a toolkit that allows you to use this system of indicators throughout the entire existence of the enterprise, taking into account the influence of multidirectional uncertainty factors that differ in the degree of influence, arising in the conditions of digitalization of the economy; the ability to determine the scenarios of the company's developme

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43

Dilogo, Ismail Hadisoebroto, Bernadus Riyan Hartanto, and Milton Lee Chip Routt. "State of the Art : Current Acetabulum Fracture Management." Hip and Knee Journal 3, no. 1 (2022): 4–25. http://dx.doi.org/10.46355/hipknee.v3i1.119.

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The annual incidence of acetabulum fractures is estimated to be 8.1 per 100.000 patients. In young adults, high energy trauma is the primary mechanism, but in the elderly, low energy trauma is the primary mechanism. Comorbidities, poor bone quality, and delayed presentation are all linked to a poor outcome. From diagnosis to treatment, the goal of this study is to describe the required procedures in reaching a satisfactory result.It is essential to be able to correctly classify acetabular fractures using the Joudet and Letournel classifications, especially when planning definitive therapy. Non

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Meiliana, Anna, Nurrani Mustika Dewi, and Andi Wijaya. "Molecular Mechanisms of Methylglyoxal in Diabetes-related Macrovascular Complications." Indonesian Biomedical Journal 16, no. 5 (2024): 411–26. http://dx.doi.org/10.18585/inabj.v16i5.3242.

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Diabetes mellitus (DM) is a chronic endocrine and metabolic disease indicated by the presence of hyperglycemia. It has been known that hyperglycemia and oxidative stress are the main culprit of all DM complications, including macrovascular complications. As a byproduct of lipid, protein, and carbohydrate metabolism, methylglyoxal (MGO) is a highly reactive substance which plays a positive signaling role in helping cells regain redox balance under oxidative stress circumstances. DM-related problems lead to an excess of mitochondrial superoxide in the heart and big and small vascular endothelial

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Nakamoto, Ichiro, Sheng Wang, Yan Guo, and Weiqing Zhuang. "A QR Code–Based Contact Tracing Framework for Sustainable Containment of COVID-19: Evaluation of an Approach to Assist the Return to Normal Activity." JMIR mHealth and uHealth 8, no. 9 (2020): e22321. http://dx.doi.org/10.2196/22321.

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We discuss a pandemic management framework using symptom-based quick response (QR) codes to contain the spread of COVID-19. In this approach, symptom-based QR health codes are issued by public health authorities. The codes do not retrieve the location data of the users; instead, two different colors are displayed to differentiate the health status of individuals. The QR codes are officially regarded as electronic certificates of individuals’ health status, and can be used for contact tracing, exposure risk self-triage, self-update of health status, health care appointments, and contact-free ps

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Lin, X. R., Bing Li, and Wei Zhao. "Research of Quick-Return Mechanisms Using for Automatic Cooking Robot." Materials Science Forum 626-627 (August 2009): 435–40. http://dx.doi.org/10.4028/www.scientific.net/msf.626-627.435.

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At present, almost all the cocking work is completed in smoke-filled kitchen, which is a time-consuming and laborious work. However, with the development of automatic and robotics technology, how to apply the relevant technology to the field of cooking has become increasingly urgent. The purpose of this paper is to apply quick-return mechanisms to automatic cooking robot, so as to obtain the realization of the movement of reversing pot. And the main three parts of the study are: the analysis of several typical quick-return mechanisms and the description of their possibility in realizing the mo

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Gaspar, Michael P., Shiv D. Gandhi, Randall W. Culp, and Patrick M. Kane. "Dual Antegrade Intramedullary Headless Screw Fixation for Treatment of Unstable Proximal Phalanx Fractures." HAND 14, no. 4 (2018): 494–99. http://dx.doi.org/10.1177/1558944717750919.

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Background: Although intramedullary headless screw (IMHS) fixation is a promising minimally invasive surgical treatment option for unstable proximal phalanx fractures, a single IMHS may provide inadequate fixation for certain fracture patterns. The purpose of this study was to evaluate the short-term clinical outcomes in a pilot series of patients with proximal phalanx fractures treated with dual antegrade IMHS fixation. Methods: We performed a retrospective chart review of proximal phalanx fractures treated with dual antegrade IMHS fixation with a minimum 1 year of follow-up. Demographic info

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Amendola, G., I. Dimino, A. Concilio, R. Pecora, and F. Amoroso. "A linear guide-based actuation concept for a novel morphing aileron." Aeronautical Journal 123, no. 1265 (2019): 1075–97. http://dx.doi.org/10.1017/aer.2019.35.

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ABSTRACTThis paper deals with the actuation system design of a full-scale morphing aileron for regional aircraft. The aileron is allowed to smoothly change its geometrical configuration and perform the in-flight transition from a baseline shape to a set of optimal morphed ones pre-defined on the basis of aerodynamic requirements. The design of such innovative aileron is aimed not only at substituting the conventional aileron installed on a real aircraft but also to provide additional functionality. The aileron is free to rotate around its main hinge axis and it is also allowed to smoothly modi

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Бублик, Ліля, and Мирослава Габа. "THE MECHANISM OF MANAGING CHANGES IN CONSUMER MARKET OF UKRAINE CAUSED BY THE WAR (ON EXAMPLE ACTIVITIES OF SE "ADIDAS-UKRAINE")." Сталий розвиток економіки, no. 3(50) (September 27, 2024): 266–70. http://dx.doi.org/10.32782/2308-1988/2024-50-40.

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The war introduced global changes in the functioning of the private sector of the economy, including the primary crisis of the management of private enterprises of Ukraine was the unwillingness to accept global challenges related to the decrease in consumer demand, the need for charitable activities, the destruction of the fixed assets of enterprises and organizations, the fear of losing income, property and own life and health. Businesses faced a choice: continue to work, despite the risks, but wanting to help the state and subordinates by paying wages and tax burden, freeze their own economi

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SMYCHOK, Yevhen, Viktoriia TKACHOVA, and Oleksandr MATSAK. "Protection of the rights of consumers of financial services in conditions of martial law." Economics. Finances. Law 12, no. - (2022): 36–40. http://dx.doi.org/10.37634/efp.2022.12.7.

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Oleksandr Anatoliiovych MATSAK The article discusses in detail the mechanism for ensuring the protection of the rights of consumers of financial services. The importance of prudential regulation is pointed out, the purpose of which is to preserve the strong financial position and capacity of financial institutions and the system. The aggression of the Russian Federation in 2022 caused great damage, therefore the importance of Ukraine's cooperation with the European Union, other states and international banks to ensure the protection of the rights of Ukrainians is indicated. The importance of a

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