Joints - Science topic

The Joint Display will be opened on 4 August 2025.

This joint display will be opened on 4 August 2025.

An innovative and accurate method for controlling the interfacial structure of Mg-alloy/steel direct lap joints using a hybrid laser-gas tungsten arc (GTA) flexible control heat source was proposed. The study investigated the impact of spatial regulation of a flexible hybrid heat source on the thermal gradient distribution across the joint geometry...

ABSTRACT Introduction: Shoulder joint motion involves coordinated movements between joints, but few studies have investigated the dynamic inter-joint movement pattern during arm elevation. This study aimed to investigate the effect of arm elevation speed on the inter-joint coordination of the shoulder joint complex during abduction, with a particul...

Accurate analysis of the age of information (AoI) is crucial for timeliness-critical systems that often rely on carrier sense multiple access (CSMA) networks. Existing models that minimize the tagged node's AoI in CSMA networks, where nodes contend for channel access, perform well with near-saturated background traffic but struggle in heterogeneous...

Whilst floating photovoltaic (FPV) is gaining attention for ocean-based applications, their motion response in waves significantly affects structural integrity and power generation efficiency. In particular, FPV is expected to operate in arrays consisting of extensive solar panels, and thus, floating solar systems are required to be analysed with n...

In this paper, a generalized method for error modeling of the spatial 1T2R three degrees of freedom (DOFs) kinematically redundant parallel mechanism with a closed-loop chain is proposed, which is based on the matrix differential method. Firstly, the detailed process of generalized error modeling and error analysis are described. Based on the propo...

Background: The decreased flexibility could attribute numerous adverse impacts to daily functions and risk of joint injury, especially in the joint with a large range of motion (ROM), such as that of the shoulder. Current management to increase shoulder flexibility mostly face the problems of regular adherence due to the need for expert guidance an...

The widespread popularity of new media has prompted almost all people to be “accompanied” by it day by day, profoundly affecting people’s way of thinking, way of life and way of communication, and also influencing the realization of various functions of ideological and political education. This paper centers on new media technology, analyzes new me...

This paper proposes a deep learning based piano hand fingering recognition system using YOLOv3 target detection algorithm for network training of the model. Process the images in the dataset and get the output of the network, use the trained model for target prediction. Based on this, a high-resolution network HRNet method is used to realize the re...

Deep neural networks, as an outstanding representative of the field of artificial intelligence, have been widely used in various fields, and have shown performance beyond human in image classification tasks. This study is based on deep learning technology to explore the optimization path of image classification model, this paper uses particle swarm...

Starting from the perspective of digital inclusive finance and new urbanization, this paper explores the mechanism and path of the joint drive of common wealth between the two. Through theoretical analysis to sort out the intrinsic connection between digital inclusive finance, new urbanization, and the development of common wealth, a hypothetical m...

This paper combines Kinect human movement recognition, movement comparison technology, and dance teaching to design a digital dance teaching platform based on Kinect. In the human action recognition algorithm, a way is suggested to show joint point angles using fixed axes. This is done by combining the Hidden Markov Model with Hausdorff distance po...

This paper systematizes the teaching system, teaching principles and teaching process of joint cultivation of information literacy and innovation ability. The joint cultivation is applied to practical teaching, and the results of the experiments are analyzed using comparative experiments and questionnaires to analyze the changes in information lite...

The Kumamoto earthquake is analyzed, mainly on the basis of InSAR data combined with strong earthquake and GNSS data, using a variety of joint InSAR methods and multisource data solution methods and by comprehensively considering the normalization and weighting of multisource data. The three-dimensional (3D) deformation field is determined. The res...

High speed moving targets can cause rapid distance changes between them and visual sensors such as cameras, and even lead to the phenomenon of crossing distance doors, where the target moves from one detection area to another in a very short period of time. If the target is accompanied by high acceleration, motion blur will occur during the imaging...

In organizational contexts, professional boundaries serve a dual purpose by distinguishing various professions from one another and regulating access to power, status, and rewards. Individuals operating within professions in which such boundaries are not clearly or explicitly defined face the risk of compromising their status and autonomy. However,...

Music is one of the most pleasurable stimuli in humans' life, often experienced in social contexts where shared enjoyment can amplify emotional responses. Despite its significance, the neural and affective mechanisms underlying socially shared music remain largely unexplored. Using hyperscanning fNIRS, we examined shared musical pleasure in friend...

Sudden cardiac death in a young physically active individual or athlete is a rare but tragic event. Pre-participation screening and follow-up investigations are utilised to reduce the risk and occurrence of these events. Echocardiography plays a key role in the cardiac diagnostic pathway and aims to identify underlying inherited or congenital struc...

Dear all, we are happy to announce that the registrations for the International Spectroradiometer Intercomparison 2025 are opened. The event will be hosted by the European Solar Test Installation (ESTI) laboratories of the European Commission Joint Research Centre, Ispra site (VA), Italy, in the week 9 - 13 June 2025. The main goal of the IS...

Resistance spot welding experiments of 304 stainless steel were performed in this study. Orthogonal test and analysis method were used to carry out the experiments and optimize process parameters based on their effects on tensile shear load and nugget diameter of the spot-welded joint. The microstructure and the defects of spot-welded joints were s...

The subject matter of this research is how the interpretation of QS. al-Hujurat: 12 regarding the limitations of prejudice. Discussing human is closely related to discussing communication relationships between them. This study aims to analyze the limits of someone is considered to do prejudice. This research is a literature research with a normativ...

In 2022, EFSA was mandated by the European Commission's Directorate‐General for Health and Food Safety (M‐2022‐00070) to provide technical assistance regarding the list of Union quarantine pests qualifying as priority pests, as specified in Article 6(2) of Regulation (EU) 2016/2031 on protective measures against plant pests. As part of Task C, EFSA...

Federated learning (FL) enables the collaborative training of deep neural networks across decentralized data archives (i.e., clients) without sharing the local data of the clients. Most of the existing FL methods assume that the data distributed across all clients is associated with the same data modality. However, remote sensing (RS) images presen...

In 2022, EFSA was mandated by the European Commission's Directorate‐General for Health and Food Safety (M‐2022‐00070) to provide technical assistance on the list of Union quarantine pests qualifying as priority pests, as specified in Article 6(2) of Regulation (EU) 2016/2031 on protective measures against plant pests. As part of Task C, EFSA conduc...

In 2022, EFSA was mandated by the European Commission's Directorate‐General for Health and Food Safety (M‐2022‐00070) to provide technical assistance regarding the list of Union quarantine pests qualifying as priority pests, as specified in Article 6(2) of Regulation (EU) 2016/2031 on protective measures against plant pests. As part of Task C, EFSA...

Sleep and wakefulness were recorded from undisturbed male rats (n = 10) for 7 days in a 12:12 h light-dark cycle. Data were partitioned by circadian and ultradian phase before quantification of within-state transition probabilities and between-state serial correlations. Within each joint circadian-ultradian phase, short-term statistical patterns we...

Purpose The purpose of this clinical focus article is to review the evidence to support a collaborative assessment between the registered dietitian nutritionist (RDN) and the speech-language pathologist (SLP) for children with cleft lip and/or palate (CL/P). Method/Results We review recommended educational materials, interventions, timelines, and...

Recent advances in video generation can produce realistic, minute-long single-shot videos with scalable diffusion transformers. However, real-world narrative videos require multi-shot scenes with visual and dynamic consistency across shots. In this work, we introduce Long Context Tuning (LCT), a training paradigm that expands the context window of...

This paper revisits Heinrich F. von Stackelberg's original description of leader-follower games under incomplete information, exploring how learning dynamics shape strategic interaction. The leader iteratively updates its conjecture about the follower's reaction function before choosing the activity level that maximizes its payoff. The follower, in...

In this work, we propose FlowTime, a generative model for probabilistic forecasting of multivariate timeseries data. Given historical measurements and optional future covariates, we formulate forecasting as sampling from a learned conditional distribution over future trajectories. Specifically, we decompose the joint distribution of future observat...

We propose the concept of a Lagrangian game to solve constrained Markov games. Such games model scenarios where agents face cost constraints in addition to their individual rewards, that depend on both agent joint actions and the evolving environment state over time. Constrained Markov games form the formal mechanism behind safe multiagent reinforc...

Recently, the approach of extracting features of essays at different levels for joint learning and scoring using hybrid models has achieved excellent results. However, there are still some issues that need to be improved: (1) Splitting the essays into sentences of the same length when extracting sentence-level features may result in the truncation...

Inspired by changing the operation mode via branch-chain switching, a symmetrical multi-arm robot is proposed to meet the demand of continuous high-performance output. The kinematics and Jacobian matrix of the mechanism are established and solved, and the parameter expression when singularity occurs is obtained. As Type-I singularity is the key lim...

Despite the excellent generalization capabilities of large-scale language models (LLMs), their severe limitations, such as illusions, lack of domain-specific knowledge, and ambiguity in the reasoning process, challenge their direct application to clinical decision support systems (CDSSs). To address these challenges, this study proposes a synergist...

In 2022, EFSA was mandated by the European Commission's Directorate‐General for Health and Food Safety (M‐2022‐00070) to provide technical assistance on the list of Union quarantine pests qualifying as priority pests, as specified in Article 6(2) of Regulation (EU) 2016/2031 on protective measures against plant pests. As part of Task C, EFSA conduc...

Beyond specific settings, many multi-agent learning algorithms fail to converge to an equilibrium solution, and instead display complex, non-stationary behaviours such as recurrent or chaotic orbits. In fact, recent literature suggests that such complex behaviours are likely to occur when the number of agents increases. In this paper, we study Q-le...

Muscle co-contraction plays a critical role in motor adaptation by minimizing movement errors and enhancing joint stability in novel dynamic environments. However, the underlying changes in motor unit (MU) activity within co-activated muscles during adaptation remain largely unexplored. To investigate this, we employed advanced electromyography sen...

Beyond diagonal reconfigurable intelligent surfaces (BD-RIS) have emerged as a transformative technology for enhancing wireless communication by intelligently manipulating the propagation environment. Its interconnected elements offer enhanced control over signal redirection, making it a promising solution for integrated terrestrial and non-terrest...

Participatory enterprise modeling (PEM) is presumed to have a positive impact on commitment, ownership feelings and further appraisals by domain experts with respect to the model. However, there has not been a lot of research into whether PEM actually has the desired effects. In this paper we report on an investigation of the effects of three setti...

Accurate survival prediction in oncology requires integrating diverse imaging modalities to capture the complex interplay of tumor biology. Traditional single-modality approaches often fail to leverage the complementary insights provided by radiological and pathological assessments. In this work, we introduce M4Survive (Multi-Modal Mamba Modeling f...

We develop a theoretical framework to understand the persistence and coexistence of competitive species in a spatially explicit metacommunity model with a heterogeneous dispersal kernel. Our analysis, based on methods from the physics of disordered systems and non-Gaussian dynamical mean field theory, reveals that species coexistence is governed by...

When a high-speed aircraft flies through the atmosphere, the plasma sheath and plasma wake can significantly affect electromagnetic wave signals. To investigate the impact of the plasma sheath and wake on radar imaging, this paper first develops a linear frequency modulated continuous wave radar array signal echo model for the full target (body, pl...

Despite the wealth of literature on parenting styles and the vastly useful insights it has generated, we are yet to grasp how this complex parenting work is interactionally constituted. Based on 19 h of family mealtime interaction that involves a female child and her parents, I show how “wise parenting” manifests itself in the micro-seconds of pare...

This study analysed the hardness and corrosion behaviour of friction stir-welded joints made of AA6061-T651 with square wave and plane edges. Superior mechanical properties are a result of increased material flow and weld integrity due to the square wave edge design on the base material plate before welding. Hardness and electrochemical corrosion t...

Discrete connectors, such as screws, nails, and others, are commonly used to fasten various structural elements. The established hypothesis regarding the behavior of joints conceived with discrete connectors directly impacts the distribution of forces. For example, in the design of truss structures, the resisting moments that arise due to the arran...

The pitch deviation, non-parallel end face, and middle diameter deviation generated during the machining process of connecting rod bolts will lead to changes in bolt preload and stress distribution under ideal conditions, and their effects under individual or interaction are not fully understood. The finite element simulation model of connecting ro...

Introduction Diversity of activation patterns within synergistic muscles can be important for stability control in challenging conditions. This study investigates the similarity of activation patterns within the triceps surae and quadriceps femoris muscles and the effects of unstable surface during a visually guided postural task. Methods Eighteen...

This joint feature issue from Optics Express and Applied Optics includes papers from the Computational Optical Sensing and Imaging meeting held during the 2024 Optica Imaging Congress and Optica Sensing Congress.

Time-dependent Stark-Zeeman systems describe the motion of an electron attracted by a proton subject to a magnetic and a time-dependent electric field. For instance the study of the dynamics of a gateway around the moon which is subject to the joint attraction of the moon, the earth and the sun leads to time-dependent Stark-Zeeman systems. In the t...

Rendering realistic human-object interactions (HOIs) from sparse-view inputs is challenging due to occlusions and incomplete observations, yet crucial for various real-world applications. Existing methods always struggle with either low rendering qualities (\eg, visual fidelity and physically plausible HOIs) or high computational costs. To address...

The integrative analysis of histopathological images and genomic data has received increasing attention for survival prediction of human cancers. However, the existing studies always hold the assumption that full modalities are available. As a matter of fact, the cost for collecting genomic data is high, which sometimes makes genomic data unavailab...

Rock particle size distribution (PSD) during ball milling is heavily influenced by mechanical parameters like Vickers hardness (HV) and brittleness (B). This study analyzes nine rocks with different lithologies, first using multifractal theory to examine the effects of hardness and brittleness on PSD. The results show that the range, uniformity, an...

We consider a probabilistic model for large-scale task allocation problems for multi-agent systems, aiming to determine an optimal deployment strategy that minimizes the overall transport cost. Specifically, we assign transportation agents to delivery tasks with given pick-up and drop-off locations, pairing the spatial distribution of transport res...

In this work, we develop first-order (Hessian-free) and zeroth-order (derivative-free) implementations of the Cubically Regularized Newton Method for solving general non-convex optimization problems. For that, we employ finite difference approximations of the derivatives. We use a special adaptive search procedure in our algorithms, which simultane...

The self-reference effect (SRE) suggests that encoding new material in episodic memory (EM) is enhanced when information is closely linked to the Self. However, traditional approaches to the SRE have neglected the interplay between multiple facets of the Self and naturalistic, multisensory EM contexts. The present study investigates the respective...

The prediction of nanoparticles (NPs) distribution is crucial for the diagnosis and treatment of tumors. Recent studies indicate that the heterogeneity of tumor microenvironment (TME) highly affects the distribution of NPs across tumors. Hence, it has become a research hotspot to generate the NPs distribution by the aid of multi-modal TME component...

Controlling the trajectories and vortex characteristics of spatial optical solitons is a significant research direction in the field of optics. This study investigates the propagation dynamics of vortex Hermite-Gaussian (VHG) beams in parabolic potential wells, introducing two key parameters: off-axis displacement and chirp to represent the beam’s...

This study evaluates the development and characterization of AA5083/Coal composite joints using Friction Stir Processing (FSP) technology. The primary findings reveal significant improvements in the grain structure, with the utilization of FSP leading to an average mean grain size of 31.173 μm, representing a reduction of 50.8598% compared to the A...

In this paper, we investigate the joint generalized channel estimation and device identification problem in Internet of Things (IoT) networks under multipath propagation. To fully utilize the received signal, we decompose the generalized channel into three components: transmitter hardware characteristics, path gains, and angles of arrival. By model...

Cutting is a crucial step in the industrial production process, particularly in the manufacture of large structures. In certain spatial positions, using a mobile robot, especially a wall-climbing robot (WCR) with adsorption function, is essential for carrying cutting torches to cut large steel components. The cutting quality directly impacts the ov...

Intermittent joints are common in rock masses and are subjected to cyclic shear loads from seismic events, environmental factors, and human activities. In this study, we conducted cyclic shear tests to investigate the effect of joint geometry (persistence, overlap, and spacing) on the cyclic shear behavior of intermittent joints under constant norm...

This paper presents an experimental study of the flexion-extension movement of the human lower limb joints. Measurements were performed on a group of fourteen healthy subjects, experimental data being obtained for flexion-extension cycles during five different walking tests on horizontal and inclined treadmills. Experimental data were obtained usin...

Single-cell spatial transcriptomics (scST) methodologies allow, in combination with histological stainings, an unprecedented view on disease progression. To comprehensively analyze scST data, bioinformatic analysis frameworks need to integrate the diverse set of data modalities and, just as importantly, enable the joint analysis of multiple dataset...

Sağlık sektöründeki teknolojik gelişmeler, sağlık hizmetlerine erişimi dünya genelinde artırmıştır. Artan sağlık harcamaları, yaşlanan nüfus, uzun bekleme süreleri ve belirli tıbbi prosedürlerin yüksek maliyetleri, bireyleri sağlık hizmetleri almak üzere ülkeler arası yolculuklara sevk etmektedir. Bu durum, sağlık turizmini, birçok ülke için önemli...

With the development of robotics technology, some tactile sensors, such as vision-based sensors, have been applied to contact-rich robotics tasks. However, the durability of vision-based tactile sensors significantly increases the cost of tactile information acquisition. Utilizing simulation to generate tactile data has emerged as a reliable approa...

In this paper, we investigate the joint generalized channel estimation and device identification problem in Internet of Things (IoT) networks {under multipath propagation}. To fully utilize the received signal, we decompose the generalized channel into three components: transmitter hardware characteristics, path gains, and angles of arrival. By mod...

In this paper, the flexion-extension angles of the three rotating joints of the HF of a sample of 5 participants and of an AF belonging to a mechanical hand-forearm system designed based on the average anthropometric data of the human sample, are measured and analyzed by using the Biometrics data acquisition and processing system and SIMIMotion sof...

Intent detection and slot filling are two important components of natural language understanding. Because their relevance, joint training is often performed to improve performance. Existing studies mostly use a joint model of multi-intent detection and slot-filling with unidirectional interaction, which improves the overall performance of the model...

A joint position statement issued in December 2024 by the National Council of Teachers of Mathematics (NCTM) and the Council for Exceptional Children (CEC) on teaching mathematics to students with disabilities lacked substantive, actionable, research-validated recommendations to support the work of practitioners in the field. Herein, we provide a r...

Resistance Element Soldering (RES) is one of the new methods of joining dissimilar materials by resistance heating using an element. Sn60Pb40 solder, which has been used for decades in tin smithing and the electrical industry, has already been tested for joining galvanized steel sheet with thermoplastic using RES. However, legal restrictions are cu...

Existing tribo-dynamic models encounter challenges in accurately characterizing the intense coupling and notable nonlinearity between component deformation and oil film pressure in lubricated clearance joints. Consequently, a novel general tribo-dynamic coupling model based on an absolute coordinate framework has been developed in this paper. The e...

Single-player contextual bandits are a well-studied problem in reinforcement learning that has seen applications in various fields such as advertising, healthcare, and finance. In light of the recent work on \emph{information asymmetric} bandits \cite{chang2022online, chang2023online}, we propose a novel multiplayer information asymmetric contextua...

The Ni–P stratum was fabricated upon the Cu substrate via an electroless plating technique, and the microstructure and properties of electroless Ni–P/Sn2.5Ag0.7Cu0.1RE micro-joints under temperature gradient was studied. Research indicates that in the initial stage of thermomigration in micro-solder joints, the intermetallic compound (IMC) in the N...

President Donald Trump's 2025 address to the joint session of Congress marked his first major policy outline since his January inauguration. While the address primarily focused on immigration, trade policy, border security, and economic issues, several elements of his speech have significant implications for family law practitioners and litigants n...

Despite recent advancements in learning-based motion in-betweening, a key limitation has been overlooked: the requirement for character-specific datasets. In this work, we introduce AnyMoLe, a novel method that addresses this limitation by leveraging video diffusion models to generate motion in-between frames for arbitrary characters without extern...

With the increasingly busy transportation of cargo at container terminals (CTs), the requirements for terminal throughput and operational efficiency are constantly increasing. The operational efficiency and cost of CTs are closely related to the seamless docking of terminal facilities, especially the joint operation between berths and quay cranes (...

Self-piercing riveting (SPR) has become a highly promising new method for connecting dissimilar materials in multi-material vehicle bodies, while the joint’s forming quality which largely affects its connection performance lacks sufficient research. This study conducted a detailed numerical investigation on the forming quality of carbon-fiber-reinf...

Managing special pathogens cases, also known as high consequence infectious diseases, presents unique challenges for healthcare systems. It requires thorough planning and comprehensive operational protocols, as well as an appreciation of how human and organizational factors influence readiness. Based on the outcomes from a full-scale Ebola Virus Di...

Larsen syndrome is a rare form of osteochondrodysplasia presenting with features like frequent joint dislocation and craniofacial anomalies. Here, we report a case of five-year-old female diagnosed previously as Larsen syndrome by genetic analysis, who presented with multiple missing and malformed teeth and flexible large joints.

The effects of corrosion on clinched joints are not completely understood yet. Recent research indicates that galvanic corrosion can actually enhance the fatigue life of clinched joints. It is then of significant interest to investigate the effects of another corrosion phenomenon, pitting corrosion, on the fatigue behavior of clinched joints. Pitti...

In order to improve the dynamic performance of legged robots, this paper proposes a method for optimizing the parameters of the leg mechanism based on dynamic motion. The proposed method consists of two key parts as follows: support mechanism optimization and transmission mechanism optimization. For the support mechanism, a mechanism analysis index...

We present the COSMOS-Web Lens Survey (COWLS), a sample of over 100 strong lens candidates from the $0.54$\,deg$^2$ COSMOS-Web survey, discovered using exquisite James Webb Space Telescope (JWST) imaging across four wavebands. Following two rounds of visual inspection, over 100 candidates were ranked as `high confidence' or `likely' by at least $50...

Report topic: Joint multiple time scale battery charge and health state estimation with improved adaptive forgetting factor - dual adaptive Kalman filtering for smart grid energy station Reporter: Wenxia Zhang Report time: 21:00-21:10 Mar 10 2025 (Beijing time) Venue: Tencent conference Meeting link: https://meeting.tencent.com/dm/evyRIWzf8wsH Meet...

Current 3D stylization techniques primarily focus on static scenes, while our world is inherently dynamic, filled with moving objects and changing environments. Existing style transfer methods primarily target appearance -- such as color and texture transformation -- but often neglect the geometric characteristics of the style image, which are cruc...

This research paper aimed to study the relationship between the two balances of the general budget and the balance of trade in Algeria during the period (1980-2020), and by using the methodology of (Johansen) for joint integration, it proved the existence of a long-term equilibrium relationship that moves from the balance of the trade balance towar...