The shear mechanical properties of rocks with variable angle joints by Guoyong Duan, Yuchen Zhou, Fei Li, Yanhai Wang

Subjects: “…Variable angle jointed surface…”
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A computational and experimental method for determining the initial conditions of motion of foreign objects interacting with a surface vortex by E. V. Neskoromnyy, S. A. Borozdin, A. I. Yevdokimov

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Dynamic Behavior and Energy Evolution Characteristic of Deep Roadway Sandstone Containing Weakly Filled Joint at Various Angles by Qinyong Ma, Qingqing Su, Pu Yuan

“…Dynamic peak strain was inversely proportional to joint angle under three different strain rates. Dynamic compressive strength, elastic deformation modulus, and plastic deformation modulus were in similar variable tendencies with incremental joint angles, showing firstly decrease to minimum value at joint angle of 45° and then increase to maximum value at joint angle of 90°. …”
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Frailty-Focused Movement Monitoring: A Single-Camera System Using Joint Angles for Assessing Chair-Based Exercise Quality by Teng Qi, Miyuki Iwamoto, Dongeun Choi, Noriyuki Kida, Noriaki Kuwahara

“…A single-camera system utilizing MediaPipe pose estimation was used to capture joint angle data as twenty older adults performed eight CBEs. …”
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Jointed rock slope stability evaluation based on PEM-JFEM method by XIAO Shu, WU Shun-chuan, GAO Yong-tao, HAN Guang, ZHOU Yu, CHENG Ai-ping

“…A probability model was established,which puts the mean and standard deviation of rock material strength parameters(friction angle and cohesive) as input variables and the safety factors as output variables,and the point estimation state functions were solved by the jointed finite element method. …”
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Correlation of Biomechanical Variables of Lower Extremity Movement During Functional Tests and Tasks in Youth League Football Players: Cross-Sectional Correlation Study by Anna Davidoviča, Sergejs Davidovičs, Guna Semjonova, Alexei Katashev, Alexander Oks, Linda Lancere, Signe Tomsone, Maksims Zolovs

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Investigation on Relationship between Failure Patterns and Shear Strength of Rock Joints by CHEN Hao-xiang, WANG Ming-yang, JIN Tian-wei, QI Cheng-zhi, YI Yue-tong

“…[Conclusions] This study provides theoretical support for further investigation into the generation mechanism of shear strength in natural rock joints. It should be noted that in the analysis of the stress state of the rock joints, the mechanical model of the dentate protrusions was simplified to a variable cross-section cantilever beam, and the failure surface of the protrusions was assumed to be a horizontal plane. …”
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Study on Joint Damage of Double Prefabricated Fragments Penetrating Finite Thickness Concrete by Zhenning Wang, Junhui Yang, Jianping Yin, Xudong Li, Rui Shi, Jianya Yi

“…When the trajectory is different, the joint damage mode is relatively complex. Based on this, the joint damage degree analysis method between fragments is established, and each variable can explain 73.8% of the joint damage degree. …”
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Locomotion and Postural Control in Young Adults with Autism Spectrum Disorders: A Novel Kinesiological Assessment by Riccardo Di Giminiani, Stefano La Greca, Stefano Marinelli, Margherita Attanasio, Francesco Masedu, Monica Mazza, Marco Valenti

“…<b>Methods</b>: The surface electromyography (sEMG) activity was measured synchronously with the other variables. …”
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Intelligent Reconfigurable surface technique for Multiple Antenna Communication System by Noor Qasim, Ismail Hburi, Haider Salih Al Ammar

“…For the reflecting element phase shift matrix the algorithm uses the arrival/departure angles of the LoS rays at the IRS elements. Basically, the joint problem of optimizing the analog and the digital pre-coder was transformed into a one-variable matrix reconstruction, i.e., sparsity-constrained signal-recovery optimization. …”
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Shipborne comparison of infrared and passive microwave radiometers for sea surface temperature observations by G. Gacitúa, J. Lorentsen Høyer, S. Schmidl Søbjærg, H. Shi, S. Skarpalezos, I. Karagali, E. Alerskans, C. Donlon

“…The data analysis primarily focused on evaluating data variability, identifying discrepancies between IR and PMW SST, and assessing the overall uncertainty in the retrieval process. …”
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Estimation of the Rupture History of the 2008 Mw8.0 Wenchuan Earthquake by Joint Inversion of Teleseismic and Strong-Motion Records by Deyu Yin, Yun Dong, Qifang Liu, Yuexin She, Jingke Wu, Jihua Zhang

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Biomechanics of elite handcyclists are highly individual—a case series on kinetics, kinematics, and muscular activity by Oliver J. Quittmann, Carola Birk, Carola Birk, Fabian Göll, Simon Nolte, Thomas Abel

“…Shoulder and elbow flexion were almost unaffected by intensity, whereas other shoulder, wrist, and trunk angles changed individually. Even more differences were found in muscular activation patterns between athletes and they demonstrated high variability in the abdominals. …”
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Max&#x2013;Min Secrecy Rate and Secrecy Energy Efficiency Optimization for RIS-Aided VLC Systems: RSMA Versus NOMA by Omar Maraqa, Sylvester Aboagye, Majid H. Khoshafa, Telex M. N. Ngatched

“…Moreover, the increased degree of freedom and flexibility from the joint consideration of power control, RIS association and element orientation results in a large set of decision variables and constraints, which further complicates the optimization problem. …”
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The Physics of Postless Hip Arthroscopy by Austin E. Wininger, M.D., Matthew J. Kraeutler, M.D., Haley Goble, M.H.A., Justin Cho, B.S., Omer Mei-Dan, M.D., Joshua D. Harris, M.D.

“…Postless arthroscopy uses friction between the patient’s torso and the table surface to permit distraction without the post. An air arthrogram, general anesthesia with muscle paralysis, and variable degrees of Trendelenburg positioning reduce the force needed for joint distraction. …”
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Developmental Trends in Postural Adjustments During Reaching in Early Childhood by Panchao Zhao, Kai Ma, Tianying Wang, Ziqing Liu

“…The variable wrist joint had an increasing trend in the high-touch task, while the elbow joint showed a nonlinear decreasing trend (<i>p</i> < 0.05). …”
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Kinematic Alterations with Changes in Putting Distance and Slope Incline in Recreational Golfers by Shawn M. Robbins, Philippe Renaud, Ukadike Chris Ugbolue

“…A Vicon motion capture system measured kinematic data. Joint angles, putter angles, and spatiotemporal variables were calculated. …”
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Targeting Shallow Subsurface Sampling for Mars at Oxia Planum Using Fluvial Erosion–Deposition Modeling by Vilmos Steinmann, Ákos Kereszturi

“…At the main valley-like feature, former water flow tracks were identified, as well as deposition-dominated locations, which are the best targets for shallow subsurface sampling. Joint evaluation of safety aspects like slope angle and loose sand dunes with scientific aspects provide the best sampling locations. …”
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A 3D Finite Element Analysis on Stress Distribution of Two Ceramic Materials Used for Fabrication of Laminate Veneers using Two Preparation Designs: An In-vitro Study by Supriyo Jana, Jayanta Bhattacharyya, Samiran Das, Preeti Goel, Ankita Tamta, Saumyadeep Ghosh, Soumadip Niyogi, Rahul Paul

“…A single static load consistent with incisal bite force in natural dentition was applied to the tooth in the incisal third on the palatal surface at a 135º angle. The pattern of stresses in the model was calculated in numerical values and depicted in colour coding. …”
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Neuromuscular and Biomechanical Adaptations of the Lower Limbs During the Pre-Landing and Landing Phase of Running Under Fatigue Conditions by Bocheng Chen, Jiaxin Wu, Jingyuan Jiang, Guoxiang Wang

“…Data were collected using a three-dimensional motion capture system, force platform analysis, and surface electromyography (sEMG). Kinematic variables, such as hip, knee, and ankle joint angles and range of motion, were analyzed alongside kinetic parameters, including vertical ground reaction forces (vGRFs) and joint moments. sEMG was used to measure the muscle activation levels of the rectus femoris, biceps femoris, tibialis anterior, and gastrocnemius, and to calculate antagonist coactivation ratios. …”
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