Communications engineering最新文献_第5页

Array of micro-epidermal actuators for noninvasive pediatric flexible conductive hearing aids.

Communications engineering Pub Date : 2025-02-20 DOI: 10.1038/s44172-025-00369-7

Enosh Lim, Miriam Redleaf, Mohammad J Moghimi

引用次数: 0

Human-structure and human-structure-human interaction in electro-quasistatic regime.

Communications engineering Pub Date : 2025-02-18 DOI: 10.1038/s44172-024-00333-x

Samyadip Sarkar, David Yang, Mayukh Nath, Arunashish Datta, Shovan Maity, Shreyas Sen

{"title":"Human-structure and human-structure-human interaction in electro-quasistatic regime.","authors":"Samyadip Sarkar, David Yang, Mayukh Nath, Arunashish Datta, Shovan Maity, Shreyas Sen","doi":"10.1038/s44172-024-00333-x","DOIUrl":"10.1038/s44172-024-00333-x","url":null,"abstract":"Augmented living equipped with electronic devices requires widespread connectivity and a low-loss communication medium for humans to interact with ambient technologies. However, traditional radiative radio frequency-based communications require wireless pairing to ensure specificity during information exchange, and with their broadcasting nature, these incur energy absorption from the surroundings. Recent advancements in electroquasistatic body-coupled communication have shown great promise by utilizing conductive objects like the human body as a communication medium. Here we propose a fundamental set of modalities of non-radiative interaction by guiding electroquasistatic signals through conductive structures between humans and surrounding electronic devices. Our approach offers pairing-free communication specificity and lower path loss during touch. Here, we propose two modalities: Human-Structure Interaction and Human-Structure Human Interaction with wearable devices. We validate our theoretical understanding with numerical electromagnetic simulations and experiments to show the feasibility of the proposed approach. A demonstration of the real-time transfer of an audio signal employing an human body communications-based Human-Structure Interaction link is presented to highlight the practical impact of this work. The proposed techniques can potentially influence Human-Machine Interaction research, including the development of assistive technology for augmented living and personalized healthcare.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"26"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836317/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Energy efficiency and carbon savings via a body grid.

Communications engineering Pub Date : 2025-02-18 DOI: 10.1038/s44172-025-00366-w

Jiahe Xu, Xuan Zhang, Daniel M Kammen, Jiahao Wang, Daimeng Li, Chongbo Sun, Qinglai Guo, Le Xie, Ming Cheng, Shengyu Tao, Hongbin Sun

{"title":"Energy efficiency and carbon savings via a body grid.","authors":"Jiahe Xu, Xuan Zhang, Daniel M Kammen, Jiahao Wang, Daimeng Li, Chongbo Sun, Qinglai Guo, Le Xie, Ming Cheng, Shengyu Tao, Hongbin Sun","doi":"10.1038/s44172-025-00366-w","DOIUrl":"10.1038/s44172-025-00366-w","url":null,"abstract":"The climate crisis necessitates decarbonization solutions that transform energy systems across all scales. While attention today focuses on utility-scale power systems, mini-or metro-scale grids, and at end-use device efficiency, the individual user scale remains underexplored. Just as with energy efficiency innovations tailored to micro-environments, body-scale energy savings offer new opportunities alongside technological and behavioral challenges. Here we propose a technique and a suite of potential innovations focused on the \"body grid\" in which devices, circuits, information network, human body and the environment interact within a universal framework to achieve energy savings, new functionality, and improved comfort. We present and test a prototype body grid supporting inter-device synergy and cooperation with external energy systems indoors and outdoors. This system yields substantial energy and economic savings, enhances personal control and comfort, and enables potential energy market participation. Simulation results demonstrate global energy savings of up to 50% for space cooling and heating.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"27"},"PeriodicalIF":0.0,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836393/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic optimizers for complex industrial systems via direct data-driven synthesis.

Communications engineering Pub Date : 2025-02-17 DOI: 10.1038/s44172-025-00368-8

Khalid Alhazmi, S Mani Sarathy

{"title":"Dynamic optimizers for complex industrial systems via direct data-driven synthesis.","authors":"Khalid Alhazmi, S Mani Sarathy","doi":"10.1038/s44172-025-00368-8","DOIUrl":"10.1038/s44172-025-00368-8","url":null,"abstract":"The chemical process industry (CPI) faces significant challenges in improving sustainability and efficiency while maintaining conservative principles for managing cost, complexity, and uncertainty. This work introduces a data-driven approach to dynamic real-time optimization (D-RTO) that addresses the aforementioned concerns by directly extracting process optimization policies from historical plant data. Our method constructs a value function to evaluate trajectory quality and employs weighted regression to derive improved policies. When applied to a plant-wide industrial process control problem, the proposed optimizer demonstrates superior performance in adapting to disturbances while maintaining stability and product quality. These results challenge conventional assumptions regarding the potential of data-driven optimization in the CPI. Although limitations exist due to the black-box nature of neural networks, this study presents a promising avenue for enhancing operational efficiency in industrial settings. The proposed approach offers a practical solution for process optimization, as it leverages readily available historical data and does not require extensive modeling efforts. By demonstrating significant efficiency improvement on a realistic industrial benchmark problem, this work paves the way for the adoption of data-driven optimization techniques in real-world CPI applications.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"25"},"PeriodicalIF":0.0,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11836206/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143451147","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A deep learning framework based on structured space model for detecting small objects in complex underwater environments.

Communications engineering Pub Date : 2025-02-17 DOI: 10.1038/s44172-025-00367-9

Yaoming Zhuang, Jiaming Liu, Haoyang Zhao, Longyu Ma, Zirui Fang, Li Li, Chengdong Wu, Wei Cui, Zhanlin Liu

引用次数: 0

On-chip solar power source for self-powered smart microsensors in bulk CMOS process.

Communications engineering Pub Date : 2025-02-17 DOI: 10.1038/s44172-025-00358-w

Jian Guan, Jingjing Liu, Wenji Mo, Bingjun Xiong, Kangkang Sun, Feng Yan, Zhipeng Li, Yuchen Wang, Bhaskar Choubey

引用次数: 0

Helmet material design for mitigating traumatic axonal injuries through AI-driven constitutive law enhancement.

Communications engineering Pub Date : 2025-02-16 DOI: 10.1038/s44172-025-00370-0

Vincent Varanges, Pezhman Eghbali, Naser Nasrollahzadeh, Jean-Yves Fournier, Pierre-Etienne Bourban, Dominique P Pioletti

{"title":"Helmet material design for mitigating traumatic axonal injuries through AI-driven constitutive law enhancement.","authors":"Vincent Varanges, Pezhman Eghbali, Naser Nasrollahzadeh, Jean-Yves Fournier, Pierre-Etienne Bourban, Dominique P Pioletti","doi":"10.1038/s44172-025-00370-0","DOIUrl":"10.1038/s44172-025-00370-0","url":null,"abstract":"Sports helmets provide incomplete protection against brain injuries. Here we aim to improve helmet liner efficiency by employing a novel approach that optimizes their properties. By exploiting a finite element model that simulates head impacts, we developed deep learning models that predict the peak rotational velocity and acceleration of a dummy head protected by various liner materials. The deep learning models exhibited a remarkable correlation coefficient of 0.99 within the testing dataset with mean absolute error of 0.8 rad.s-1 and 0.6 krad.s-2 respectively, highlighting their predictive ability. Deep learning-based material optimization demonstrated a significant reduction in the risk of brain injuries, ranging from -5% to -65%, for impact energies between 250 and 500 Joules. This result emphasizes the effectiveness of material design to mitigate sport-related brain injury risks. This research introduces promising avenues for optimizing helmet designs to enhance their protective capabilities.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"22"},"PeriodicalIF":0.0,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11830762/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143434510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vision-based tactile sensor design using physically based rendering.

Communications engineering Pub Date : 2025-02-14 DOI: 10.1038/s44172-025-00350-4

Arpit Agarwal, Achu Wilson, Timothy Man, Edward Adelson, Ioannis Gkioulekas, Wenzhen Yuan

{"title":"Vision-based tactile sensor design using physically based rendering.","authors":"Arpit Agarwal, Achu Wilson, Timothy Man, Edward Adelson, Ioannis Gkioulekas, Wenzhen Yuan","doi":"10.1038/s44172-025-00350-4","DOIUrl":"10.1038/s44172-025-00350-4","url":null,"abstract":"High-resolution tactile sensors are very helpful to robots for fine-grained perception and manipulation tasks, but designing those sensors is challenging. This is because the designs are based on the compact integration of multiple optical elements, and it is difficult to understand the correlation between the element arrangements and the sensor accuracy by trial and error. In this work, we introduce the digital design of vision-based tactile sensors using a physically accurate light simulator. The framework modularizes the design process, parameterizes the sensor components, and contains an evaluation metric to quantify a sensor's performance. We quantify the effects of sensor shape, illumination setting, and sensing surface material on tactile sensor performance using our evaluation metric. The proposed optical simulation framework can replicate the tactile image of the real vision-based tactile sensor prototype without any prior sensor-specific data. Using our approach we can substantially improve the design of a fingertip GelSight sensor. This improved design performs approximately 5 times better than previous state-of-the-art human-expert design at real-world robotic tactile embossed text detection. Our simulation approach can be used with any vision-based tactile sensor to produce a physically accurate tactile image. Overall, our approach enables the automatic design of sensorized soft robots and opens the door for closed-loop co-optimization of controllers and sensors for dexterous manipulation.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"21"},"PeriodicalIF":0.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11828998/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143426746","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

User-specified inverse kinematics taught in virtual reality reduce time and effort to hand-guide redundant surgical robots.

Communications engineering Pub Date : 2025-02-13 DOI: 10.1038/s44172-025-00357-x

Murali Karnam, Marek Zelechowski, Philippe C Cattin, Georg Rauter, Nicolas Gerig

{"title":"User-specified inverse kinematics taught in virtual reality reduce time and effort to hand-guide redundant surgical robots.","authors":"Murali Karnam, Marek Zelechowski, Philippe C Cattin, Georg Rauter, Nicolas Gerig","doi":"10.1038/s44172-025-00357-x","DOIUrl":"10.1038/s44172-025-00357-x","url":null,"abstract":"Medical robots should not collide with close by obstacles during medical procedures, such as lamps, screens, or medical personnel. Redundant robots have more degrees of freedom than needed for moving endoscopic tools during surgery and can be reshaped to avoid obstacles by moving purely in the space of these additional degrees of freedom (null space). Although state-of-the-art robots allow surgeons to hand-guide endoscopic tools, reshaping the robot in null space is not intuitive for surgeons. Here we propose a learned task space control that allows surgeons to intuitively teach preferred robot configurations (shapes) that avoid obstacles using a VR-based planner in simulation. Later during surgery, surgeons control both the endoscopic tool and robot configuration (shape) with one hand. In a user study, we found that learned task space control outperformed state-of-the-art naive task space control in all the measured performance metrics (time, effort, and user-perceived effort). Our solution allowed users to intuitively interact with robots in VR and reshape robots while moving tools in medical and industrial applications.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"20"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11825656/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143415736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Three-dimensional runout characterisation for rotationally symmetric components.

Communications engineering Pub Date : 2025-02-12 DOI: 10.1038/s44172-025-00354-0

Christopher G Tompkins, Luke D Todhunter, Harald Gottmann, Christoph Rettig, Robert Schmitt, Jochen Wacker, Samanta Piano

{"title":"Three-dimensional runout characterisation for rotationally symmetric components.","authors":"Christopher G Tompkins, Luke D Todhunter, Harald Gottmann, Christoph Rettig, Robert Schmitt, Jochen Wacker, Samanta Piano","doi":"10.1038/s44172-025-00354-0","DOIUrl":"10.1038/s44172-025-00354-0","url":null,"abstract":"Rotationally symmetric components (such as gears and axels) are ubiquitous to modern devices, and their precision manufacture is necessary to keep costs and manufacture time down, as well as reduce waste and possibly hazardous component failure. The manufacturing errors, which affect the shape in the rotation axis, are grouped together into the common term \"runout\". Here we present a potential updated standard for characterising the runout of rotationally symmetric machined parts in three-dimensions, and evaluated using virtual instrumentation, enabling an accurate characterisation of the three dimensional (3D) surface deformation of a part from minimal surface information. For any 3D characterisation method to be widely adopted by the science, technology, engineering, and mathematics community, it must be fully compatible with previous methods and standards. As such, the proposed method produces a 3D runout vector based on four standard profile measurements. To evaluate the efficacy of the proposed runout method, a technique for evaluating the errors of commonly used virtual instruments has been developed. This evaluation technique produces a single-valued quantification of the deviation of the instrument outputs compared to the input parameters, decoupled from the errors on the instrument itself.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"19"},"PeriodicalIF":0.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11821993/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143411834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0