Article
Chemistry, Analytical
Leiyu Zhang, Zhenxing Jiao, Yandong He, Peng Su
Summary: This article introduces a soft exoskeleton for the hip flexion called H-Suit, which aims to improve walking endurance, delay muscle fatigue, and reduce the activation level of hip flexors. Through experimental methods and an assistance strategy, the desired profile of auxiliary forces is obtained and shown to be consistent with the theoretical values. The H-Suit is found to delay muscle fatigue of the lower limbs under powered conditions.
Article
Computer Science, Interdisciplinary Applications
Daeseok Kang, Chang-Gyu Lee, Ohung Kwon
Summary: A multimodal haptic suit called PA suit was developed, which provides high-resolution haptic feedback and simulates the sensation of brief and strong collisions. This study proves the effectiveness of the PA suit in improving the VR experience, as it allows users to distinguish between haptic patterns and positions of collided virtual objects.
Article
Business
Yi Zheng, Zhimei Zang, Douglas B. Grisaffe, Fred Miao, Xiaoyan Wang
Summary: This study investigates how and when different types of self-construal affect salespersons' sales performance, and identifies the mediating mechanism and contingent factors involved. The findings show that salespersons' self-construal interacts with job and organizational features to influence their customer-oriented behaviors and resultant job performance. Furthermore, the study suggests that firms can manipulate salespersons' customer-oriented behaviors through person-environment fit or misfit, and this in turn impacts sales performance. Overall, this research has theoretical and practical implications for sales management.
INDUSTRIAL MARKETING MANAGEMENT
(2023)
Article
Chemistry, Inorganic & Nuclear
N. Nyssen, N. Giraud, J. Wouters, I. Jabin, L. Leherte, O. Reinaud
Summary: The kinetics of ligand exchange at a ZnII center confined in a biomimetic environment were studied by 1H NMR spectroscopy. It was found that the exchange was slow under dry conditions but much faster in the presence of water. The study also showed that water molecules played a catalytic role in the exchange process, highlighting the importance of water and micro-environment in metal ion lability.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Robotics
Yves Zimmermann, Jaeyong Song, Cedric Deguelle, Julia Laderach, Lingfei Zhou, Marco Hutter, Robert Riener, Peter Wolf
Summary: Exoskeleton robots have found applications in various areas such as neurorehabilitation, telemanipulation, and power augmentation. However, existing attachment concepts have imposed limitations on the performance of modern exoskeletons due to issues like insufficient stiffness, time-consuming adaption processes, and bulkiness. In this study, an augmented attachment system was proposed and compared to a conventional solution. The results showed that the proposed system significantly reduced the relative motion between the human and the robot, mitigated undesired contacts, and facilitated better alignment with the user's anatomy.
IEEE TRANSACTIONS ON ROBOTICS
(2023)
Article
Green & Sustainable Science & Technology
Na Chai, Lihui Gao, Shulei Li, Yijun Cao, Zilong Ma, Lingni Li, Ming Hu
Summary: A superior persimmon peel-based imprinted material (Ga-IIP-PP-OP) with high adsorption capacity for gallium (III) ions was prepared by optimizing the synthesis conditions. The material exhibited a strong affinity for gallium (III) even in binary systems and showed significantly higher adsorption capacity compared to other reported gallium adsorbents. The enhanced adsorption performance was attributed to the electrostatic attraction and chelation between the material and gallium (III) ions. The results highlighted the potential of the optimized imprinted material for selective adsorption and efficient recovery of gallium (III).
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Engineering, Multidisciplinary
JiaZhen He, YeHu Lu, WenZhen Su, FangMing Wang, WenFang Song, LaiLi Wang, Min Wang
Summary: Maintaining thermal comfort in cold indoor environments is important, and using advanced clothing such as an air inflatable suit can effectively improve personal thermal management. The air-inflated suit not only increases clothing thermal insulation but also alleviates cold strain and provides higher skin and body temperatures. This technology can significantly reduce energy consumption and greenhouse gas emissions.
SCIENCE CHINA-TECHNOLOGICAL SCIENCES
(2023)
Article
Business
Jian Li, Jinsong Huang, Yaqi Li
Summary: In recent years, the extensive use of digital human avatar (DHA) endorsement has emerged. The fit between a fake virtual image and a real product is crucial for the success of DHA endorsement. Based on cue consistency theory, this study found that consumers generate positive attitudes toward DHA endorsement when there is a fit between a DHA and a real product. The results also showed that authenticity fit and association fit have significant positive impacts on consumer attitudes toward DHA endorsement, with varying influences depending on the product type.
JOURNAL OF RETAILING AND CONSUMER SERVICES
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Jinge Yao, Lu Wang, Qiwei Pang, Mingjie Fang
Summary: This study proposes a conceptual index system to evaluate the coupling coordination between the MICE and tourism industries and finds that the overall level of coupling and coordination is relatively low, with significant spatial differentiation.
CURRENT ISSUES IN TOURISM
(2023)
Article
Chemistry, Physical
Yue Mao, Hongfei Yin, Bo Qiu, Jiacheng Yao, Min Zhang, Xiaoheng Liu, Shenming Chen
Summary: The combination of Zn0.78Cd0.22S and SnS2 to form a Z-scheme heterojunction using a hydrothermal method significantly enhanced visible light absorption and photocatalytic performance, with the best results achieved at a 10% composite ratio.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Environmental Sciences
Zhengzhong Zhou, Tian-Dan Lu, Shi-Peng Sun, Qian Wang
Summary: This article summarizes the application of coordination chemistry in nanofiltration membranes. The participation of coordination chemistry has resulted in membranes with uniform pores, better antifouling properties, and high hydrophilicity. The effects and mechanisms of coordination chemistry on membrane performance are discussed, and prospects for further advancements in nanofiltration processes are given.
Article
Engineering, Manufacturing
Tingting Xuan, Sheng Wang, Shuaishuai Sun, Huaxia Deng, Junshuo Zhang, Shuai Liu, Congcong Lou, Hong Chen, Jianyu Zhou, Yuan Hu, Xinglong Gong
Summary: A lightweight and thermal-insulating shear stiffening gel (LT-SSG) with anti-impact was developed by incorporating insulating glass microspheres BR20 into SSG. The density of LT-SSG decreased by 49.09% compared to SSG, while maintaining excellent energy absorption capacity. LT-SSG also exhibited good thermal insulation performance, effectively isolating surrounding temperature and protecting against heat loss. Additionally, LT-SSG demonstrated promising applications in fire suits and body armors.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2023)
Article
Engineering, Environmental
Wei Tan, Shaohua Xie, Yandi Cai, Haowei Yu, Kailong Ye, Meiyu Wang, Weijian Diao, Lu Ma, Steven N. Ehrlich, Fei Gao, Lin Dong, Fudong Liu
Summary: A highly efficient Pt single-atom catalyst was constructed for the catalytic oxidation of C3H8 by calcination of Pt catalysts on pre-stabilized Ce0.9Zr0.1O2 support. The Pt single atoms with different strengths of Pt-CeO2 interaction and coordination environment were successfully achieved by controlling the calcination temperatures. The Pt/CZO-750 catalyst exhibited higher C3H8 oxidation activity than Pt/CZO-550, attributed to the higher concentration of surface Ce3+ species/oxygen vacancies and stronger Pt-CeO2 interaction.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Robotics
Stephanie Olson, Moaed Abd, Erik D. Engeberg
Summary: This study focuses on human-inspired robotic eye-hand coordination algorithms using custom built robotic eyes interfaced with a Baxter robot. Results show that humans can reliably infer the delivery location of a transported object through the robotic eye-hand coordination algorithm, and that the frequency of robotic eye movements correlates with the level of care exerted during object transportation.
INTERNATIONAL JOURNAL OF SOCIAL ROBOTICS
(2021)
Article
Engineering, Manufacturing
Hsihui Chang, Sheng Liu, Raj Mashruwala
Summary: This study examines the impact of customers' bargaining power on supplier performance, and finds that strategic fit can mitigate the negative impact by balancing short-term benefits with long-term benefits. Strategic fit on dimensions of innovation, customer orientation, and efficiency attenuates the negative association between customers' relative bargaining power and supplier performance.
PRODUCTION AND OPERATIONS MANAGEMENT
(2022)
Article
Mathematics, Interdisciplinary Applications
Damian G. Kelty-Stephen, Mariusz P. Furmanek, Madhur Mangalam
Summary: This study situates dexterous behavior intermittency explicitly in multifractal modeling for non-Gaussian cascade processes, showing task-sensitive non-Gaussianity parameters lambda have curvilinear relationships with timescale during quiet upright standing. It aims to differentiate linear from quadratic decay in order to understand scale-invariant and scale-dependent cascades, and test whether these cascades respond to different task demands and movement patterns. The results confirm the multifractal foundations of postural control and support the differentiation into rambling vs. trembling and into scale-dependent vs. scale-invariant cascades within rambling sway.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Neurosciences
Noah Jacobson, Quinn Berleman-Paul, Madhur Mangalam, Damian G. Kelty-Stephen, Christopher Ralston
Summary: The "quiet eye" approach emphasizes the importance of reducing eye movements during aiming tasks to enhance coordination between postural sway and optic flow. Lower multifractality in postural sway predicts more adaptive responses to perturbations and higher putting accuracy. Reduced multifractality may help restrain motoric degrees of freedom in a context-sensitive manner to achieve task goals.
HUMAN MOVEMENT SCIENCE
(2021)
Article
Neurosciences
Mariusz P. Furmanek, Madhur Mangalam, Damian G. Kelty-Stephen, Grzegorz Juras
Summary: Healthy human postural sway exhibits strong intermittency, affected by multi-scale control processes which show specific non-Gaussian distributional properties at different timescales. More stringent balancing tasks recruit shorter timescale processes, moderated by postural sway indices.
NEUROSCIENCE LETTERS
(2021)
Article
Neurosciences
Madhur Mangalam, I-Chieh Lee, Karl M. Newell, Damian G. Kelty-Stephen
Summary: Standing still and focusing on a visible target is a preamble to many coordinated behaviors, with deep layering of texture at many scales. Multiscale PDF analysis shows that visual adjustments can impact the statistical signatures of postural dynamics. Vision stabilizes posture by reconfiguring the body's prestressed poise to interact with different spatial layouts.
NEUROSCIENCE LETTERS
(2021)
Article
Audiology & Speech-Language Pathology
Anurag Rimzhim, Avantika Johri, Damian G. Kelty-Stephen, Carol A. Fowler
Summary: The study in Hindi found that letters and akshars are functional units in readers' cognition, suggesting that the aksharic grouping of letters does not prevent readers from decoding the constituent letters of akshars. Hindi is read alphabetically.
LANGUAGE AND SPEECH
(2021)
Article
Neurosciences
Madhur Mangalam, Nisarg Desai, Damian G. Kelty-Stephen
Summary: The study investigated how proprioceptive afferents contribute to effortful perception of heaviness and length of a manually wielded object in the absence of vision. Results showed that different wrist angles and angular kinematics affected perceived heaviness and length in distinct ways, suggesting that proprioceptive afferents play a differential role in perception of object properties.
EXPERIMENTAL BRAIN RESEARCH
(2021)
Article
Behavioral Sciences
Madhur Mangalam, Dorothy M. Fragaszy, Jeffrey B. Wagman, Brian M. Day, Damian G. Kelty-Stephen, Raoul M. Bongers, Dietrich W. Stout, Francois Osiurak
Summary: The ubiquity of tool use in human life has led to scientific and philosophical investigations aiming to understand the development of humans' engagement with tools. However, the existing literature on tool use faces epistemological challenges and generates different answers to the same questions. Six author groups from different disciplines and theoretical perspectives respond to critical questions about tool use and point out future research directions. They find that although there are differences in responses, there is a surprising degree of agreement on essential concepts and questions. The interdisciplinary and intertheoretical discussion aims to foster a more comprehensive understanding of tool use.
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2022)
Review
Behavioral Sciences
Damian G. Kelty-Stephen, Madhur Mangalam
Summary: Turing's metaphor of the mind and brain as a computer has inspired decades of empirical investigation. His concept of cascade instability offers a geometric framework driven by power laws and can be studied using multifractal formalism and multiscale probability density function analysis. Research reveals the characteristics and consequences of cascade instability on perception, action, and cognition.
NEUROSCIENCE AND BIOBEHAVIORAL REVIEWS
(2022)
Article
Mathematics, Interdisciplinary Applications
Damian G. Kelty-Stephen, Madhur Mangalam
Summary: This article discusses the challenge of ergodicity breaking in biological and psychological sciences, and proposes the use of fractal and multifractal descriptors to restore ergodicity in causal modeling.
CHAOS SOLITONS & FRACTALS
(2022)
Article
Engineering, Industrial
Aditi Gupta, Damian G. Kelty-Stephen, Madhur Mangalam, Ryan J. McKindles, Leia Stirling
Summary: This study aimed to evaluate the effect of visual and tactile-visual dual-task on gait performance. The results showed that gait characteristics are influenced by walking speed and dual-task modality, and are more sensitive to changes in speed than the presence of a dual task.
APPLIED ERGONOMICS
(2023)
Article
Physics, Multidisciplinary
Damian G. Kelty-Stephen, Madhur Mangalam
Summary: Biological and psychological processes often fail to have stable means and independent variation over time, breaking ergodicity. This failure may be due to the lack of independence across time in these processes. Multifractal evidence suggests that these processes exhibit nonlinear interactions across scales. This study compares additive white Gaussian noise (awGn) to simulations of multiplicative binomial cascades and examines how well statistical descriptors can portray the nonlinearity or multiplicativity of these processes.
PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS
(2023)
Article
Multidisciplinary Sciences
Madhur Mangalam, Damian G. Kelty-Stephen, Joel H. Sommerfeld, Nick Stergiou, Aaron D. Likens
Summary: Stride-to-stride variations in walking show cascade-like intermittency, with uneven stride intervals and asynchrony between visual cues and footfalls. This conflicts with traditional theories of sensorimotor control and suggests the need for models that account for stride-to-stride variations beyond predictive internal models.
Article
Psychology, Experimental
Damian Kelty-Stephen, Oliver Drew Similton, Emma Rabinowitz, Marty Allen
Summary: This study demonstrates the interaction between multifractal stimulation and torso movement in distance perception. Moderate non-linearity in stimulation leads to more accurate distance perception, while higher non-linearity results in overestimation. These findings provide new insights into the multifractal-geometrical approaches to perception.
ECOLOGICAL PSYCHOLOGY
(2023)
Article
Psychology, Mathematical
Damian G. Kelty-Stephen, Elizabeth Lane, Lauren Bloomfield, Madhur Mangalam
Summary: The creativity and emergence of biological and psychological behavior tend to be nonlinear. Traditional linear models fail to accurately describe these changes. This study explores nonlinear changes in measurement data using multifractal analysis, and proposes a mathematical framework to determine the degree of nonlinear changes over time in continuous measurement data. This multifractal modeling method allows for quantifying the potential interactions between events at different time scales, and may serve as a predictor for perceptuomotor or cognitive performance.
BEHAVIOR RESEARCH METHODS
(2023)
Article
Multidisciplinary Sciences
Madhur Mangalam, Damian G. Kelty-Stephen
Summary: The stochastic processes underlying the growth and stability of biological and psychological systems reveal themselves when far-from-equilibrium. Non-ergodicity is present in such systems and it implies that the average outcome for a group may not accurately represent the average outcome for an individual over time. Extracting an ergodic stationary measure from fluctuating physiological data is crucial for valid analysis. Traditional linear statistics can break ergodicity, but time series of statistics addressing sequential structure and its potential nonlinearity can fulfill the ergodic assumption. Complementing traditional linear indices with fractal and multi-fractal indices would empower the study of stochastic far-from-equilibrium biological and psychological dynamics.
JOURNAL OF THE ROYAL SOCIETY INTERFACE
(2022)
