Communications engineering最新文献_第3页

Validating sensory conflict theory and mitigating motion sickness in humans with galvanic vestibular stimulation. 验证感觉冲突理论和减轻人类前庭电刺激的晕动病。

Communications engineering Pub Date : 2025-04-27 DOI: 10.1038/s44172-025-00417-2

Aaron R Allred, Aadhit R Gopinath, Torin K Clark

{"title":"Validating sensory conflict theory and mitigating motion sickness in humans with galvanic vestibular stimulation.","authors":"Aaron R Allred, Aadhit R Gopinath, Torin K Clark","doi":"10.1038/s44172-025-00417-2","DOIUrl":"https://doi.org/10.1038/s44172-025-00417-2","url":null,"abstract":"Per sensory conflict theory, vestibular sensory information has been proposed to drive motion sickness given deviations from central expectations. However, the consistency of motion sickness with quantitative predictions of manipulated vestibular sensory conflict remains untested. Here, we evaluated motion sickness symptoms within 10 participants exposed to galvanic vestibular stimulation (GVS) designed to manipulate vestibular sensory conflict during passive physical translations. Using a computational methodology, equal and opposite GVS waveforms were designed to reduce (Beneficial) or increase (Detrimental) motion sickness while controlling all other sources of sensory information and central confounds. Beneficial GVS produced a 26% motion sickness reduction, and Detrimental GVS produced a 56% increase (p = 0.0055), demonstrating the causal role of vestibular information in human motion sickness. Validating our predictions, this finding supports the theory that vestibular sensory conflict mediates motion sickness and facilitates new methods and countermeasures for mitigating motion sickness during transportation and in virtual environments.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"78"},"PeriodicalIF":0.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12034809/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144000548","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

All-fiber architecture for high speed core-selective switch for multicore fibers. 多芯光纤高速选芯交换机的全光纤结构。

Communications engineering Pub Date : 2025-04-26 DOI: 10.1038/s44172-025-00412-7

Cristóbal Melo, Matías Reyes F, Diego Arroyo, Esteban S Gómez, Stephen P Walborn, Gustavo Lima, Miguel Figueroa, Jaime Cariñe, Gabriel Saavedra

{"title":"All-fiber architecture for high speed core-selective switch for multicore fibers.","authors":"Cristóbal Melo, Matías Reyes F, Diego Arroyo, Esteban S Gómez, Stephen P Walborn, Gustavo Lima, Miguel Figueroa, Jaime Cariñe, Gabriel Saavedra","doi":"10.1038/s44172-025-00412-7","DOIUrl":"https://doi.org/10.1038/s44172-025-00412-7","url":null,"abstract":"The use of multicore optical fibers is emerging as a key solution to implement space-division multiplexing, essential for overcoming the capacity limits of conventional single-mode fibers. However, next-generation high-capacity optical networks will require new devices compatible with these fibers. In this work, we present an all-fiber architecture for a high-speed core-selective switch, crucial for efficient signal distribution in multicore networks. The device leverages multicore interference to achieve rapid core-switching within 0.7 μs-three orders of magnitude faster than state-of-the-art micro-electromechanical system switches. It also maintains an average inter-core crosstalk below -18 dB, ensuring compatibility with diverse network tasks. We validated the device's functionality by routing optical signals ranging from 1 to 600 Gbps and successfully switching signals over a field-installed multicore fiber network. These results demonstrate, for the first time, a multicore optical fiber switch operating under real-world conditions with speeds far surpassing existing commercial devices. Potentially compatible with standard multiplexing techniques, this switch represents a significant advancement in enabling high-capacity multicore telecommunication networks. Its performance and adaptability position it as a key technology for the development of next-generation optical communication systems.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"77"},"PeriodicalIF":0.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12033287/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144060632","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

Spatially distributed biomimetic compliance enables robust anthropomorphic robotic manipulation. 空间分布的仿生依从性使鲁棒拟人化机器人操作。

Communications engineering Pub Date : 2025-04-26 DOI: 10.1038/s44172-025-00407-4

Kai Junge, Josie Hughes

{"title":"Spatially distributed biomimetic compliance enables robust anthropomorphic robotic manipulation.","authors":"Kai Junge, Josie Hughes","doi":"10.1038/s44172-025-00407-4","DOIUrl":"https://doi.org/10.1038/s44172-025-00407-4","url":null,"abstract":"The impressive capabilities of humans to robustly perform manipulation stems from compliant interactions, enabled by the structure and materials distributed in the hands. We propose that mimicking this spatially distributed compliance in an anthropomorphic robotic hand enhances open-loop manipulation robustness and leads to human-like behaviors. Here we introduce the ADAPT Hand, equipped with configurable compliant elements on the skin, fingers, and wrist. After quantifying the effect of compliance on individual components against a rigid configuration, we experimentally analyze the performance of the full hand. Through automated pick-and-place tests, we show the grasping robustness mirrors the estimated geometric theoretical limit, while stress-testing the robot to perform 800+ grasps. Finally, 24 items with varying geometries are grasped in a constrained environment with a 93% success rate. We demonstrate that the hand-object self-organization behavior, driven by passive adaptation, underpins this robustness. The hand exhibits different grasp types based on object geometries, with a 68% similarity to natural human grasps.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"76"},"PeriodicalIF":0.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12033370/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024836","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 brain-inspired algorithm improves "cocktail party" listening for individuals with hearing loss. 一种受大脑启发的算法改善了听力损失患者的“鸡尾酒会”听力。

Communications engineering Pub Date : 2025-04-22 DOI: 10.1038/s44172-025-00414-5

Alexander D Boyd, Virginia Best, Kamal Sen

{"title":"A brain-inspired algorithm improves \"cocktail party\" listening for individuals with hearing loss.","authors":"Alexander D Boyd, Virginia Best, Kamal Sen","doi":"10.1038/s44172-025-00414-5","DOIUrl":"https://doi.org/10.1038/s44172-025-00414-5","url":null,"abstract":"Selective listening in competing-talker situations is an extraordinarily difficult task for many people. For individuals with hearing loss, this difficulty can be so extreme that it seriously impedes communication and participation in daily life. Directional filtering is one of few proven methods to improve speech understanding in competition, and most hearing devices now incorporate some kind of directional technology, although real-world benefits are modest, and many approaches fail in competing-talker situations. We recently developed a biologically inspired algorithm that is capable of very narrow spatial tuning and can isolate one talker from a mixture of talkers. The algorithm is based on a hierarchical network model of the auditory system, in which binaural sound inputs drive populations of neurons tuned to specific spatial locations and frequencies, and the spiking responses of neurons in the output layer are reconstructed into audible waveforms. Here we evaluated the algorithm in a group of adults with sensorineural hearing loss, using a challenging competing-talker task. The biologically inspired algorithm led to robust intelligibility gains under conditions in which a standard beamforming approach failed. The results provide compelling support for the potential benefits of biologically inspired algorithms for assisting individuals with hearing loss in \"cocktail party\" situations.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"75"},"PeriodicalIF":0.0,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12015318/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144024808","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

ATMO: an aerially transforming morphobot for dynamic ground-aerial transition. ATMO：用于动态地-空过渡的空中变换形态机器人。

Communications engineering Pub Date : 2025-04-19 DOI: 10.1038/s44172-025-00413-6

Ioannis Mandralis, Reza Nemovi, Alireza Ramezani, Richard M Murray, Morteza Gharib

{"title":"ATMO: an aerially transforming morphobot for dynamic ground-aerial transition.","authors":"Ioannis Mandralis, Reza Nemovi, Alireza Ramezani, Richard M Murray, Morteza Gharib","doi":"10.1038/s44172-025-00413-6","DOIUrl":"https://doi.org/10.1038/s44172-025-00413-6","url":null,"abstract":"Designing ground-aerial robots is challenging due to the increased actuation requirements which can lead to added weight and reduced locomotion efficiency. Morphobots mitigate this by combining actuators into multi-functional groups and leveraging ground transformation to achieve different locomotion modes. However, transforming on the ground requires dealing with the complexity of ground-vehicle interactions during morphing, limiting applicability on rough terrain. Mid-air transformation offers a solution to this issue but demands operating near or beyond actuator limits while managing complex aerodynamic forces. We address this problem by introducing the Aerially Transforming Morphobot (ATMO), a robot which transforms near the ground achieving smooth transition between aerial and ground modes. To achieve this, we leverage the near ground aerodynamics, uncovered by experimental load cell testing, and stabilize the system using a model-predictive controller that adapts to ground proximity and body shape. The system is validated through numerous experimental demonstrations. We find that ATMO can land smoothly at body postures past its actuator saturation limits by virtue of the uncovered ground-effect.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"74"},"PeriodicalIF":0.0,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12009325/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144022049","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

Predicting compressive stress-strain behavior of elasto-plastic porous media via morphology-informed neural networks. 基于形态信息神经网络的弹塑性多孔介质压应力-应变行为预测。

Communications engineering Pub Date : 2025-04-18 DOI: 10.1038/s44172-025-00410-9

W Lindqwister, J Peloquin, L E Dalton, K Gall, M Veveakis

{"title":"Predicting compressive stress-strain behavior of elasto-plastic porous media via morphology-informed neural networks.","authors":"W Lindqwister, J Peloquin, L E Dalton, K Gall, M Veveakis","doi":"10.1038/s44172-025-00410-9","DOIUrl":"https://doi.org/10.1038/s44172-025-00410-9","url":null,"abstract":"Porous media, ranging from bones to concrete and from batteries to architected lattices, pose difficult challenges in fully harnessing for engineering applications due to their complex and variable structures. Accurate and rapid assessment of their mechanical behavior is both challenging and essential, and traditional methods such as destructive testing and finite element analysis can be costly, computationally demanding, and time consuming. Machine learning (ML) offers a promising alternative for predicting mechanical behavior by leveraging data-driven correlations. However, with such structural complexity and diverse morphology among porous media, the question becomes how to effectively characterize these materials to provide robust feature spaces for ML that are descriptive, succinct, and easily interpreted. Here, we developed an automated methodology to determine porous material strength. This method uses scalar morphological descriptors, known as Minkowski functionals, to describe the porous space. From there, we conduct uniaxial compression experiments for generating material stress-strain curves, and then train an ML model to predict the curves using said morphological descriptors. This framework seeks to expedite the analysis and prediction of stress-strain behavior in porous materials and lay the groundwork for future models that can predict mechanical behaviors beyond compression.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"73"},"PeriodicalIF":0.0,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12008209/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143998375","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

Author Correction: Human-structure and human-structure-human interaction in electro-quasistatic regime. 作者更正：准静电状态下的人-结构和人-结构-人的相互作用。

Communications engineering Pub Date : 2025-04-16 DOI: 10.1038/s44172-025-00406-5

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

引用次数: 0

Reciprocal actuation core and modular robotic limbs for flying, swimming and running. 用于飞行、游泳和跑步的相互驱动核心和模块化机械四肢。

Communications engineering Pub Date : 2025-04-13 DOI: 10.1038/s44172-025-00404-7

Song Li, Fangyuan Liu, Xin Dong, Jinwu Xiang, Daochun Li, Pakpong Chirarattananon, Zhan Tu

{"title":"Reciprocal actuation core and modular robotic limbs for flying, swimming and running.","authors":"Song Li, Fangyuan Liu, Xin Dong, Jinwu Xiang, Daochun Li, Pakpong Chirarattananon, Zhan Tu","doi":"10.1038/s44172-025-00404-7","DOIUrl":"https://doi.org/10.1038/s44172-025-00404-7","url":null,"abstract":"Investigations into animal locomotion across diverse environments have highlighted the universal applicability of adjustable reciprocal motion, offering insights into simplifying actuation systems for multi-modal robots. However, achieving unified and efficient reciprocal motion with environmental adaptability in miniature robotic systems is challenging due to constraints of size, weight, and the need for controlled degree of freedom. Here, we present the UniCore, a miniature unified actuation platform capable of flying, swimming, and running with modular appendages. This platform features bio-inspired motor-spring resonance actuation systems, with a central controller that generates four adjustable reciprocal control signals based on a central pattern generator model. Performance validation demonstrates UniCore's proficiency in achieving three distinct modes of locomotion, underscoring the effectiveness of reciprocal motion for the locomotion of both animals and machines. All in all, this work demonstrates the potential of a unified reciprocal actuation platform to eliminate morphological and actuation redundancies commonly found in existing multi-modal robots, paving the way for more efficient and versatile miniature robotic systems.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"71"},"PeriodicalIF":0.0,"publicationDate":"2025-04-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11994817/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144065379","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 photonic crystal receiver for Rydberg atom-based sensing. 用于里德伯原子传感的光子晶体接收器。

Communications engineering Pub Date : 2025-04-09 DOI: 10.1038/s44172-025-00408-3

Hadi Amarloo, Mohammad Noaman, Su-Peng Yu, Donald Booth, Somayeh Mirzaee, Rajesh Pandiyan, Florian Christaller, James P Shaffer

{"title":"A photonic crystal receiver for Rydberg atom-based sensing.","authors":"Hadi Amarloo, Mohammad Noaman, Su-Peng Yu, Donald Booth, Somayeh Mirzaee, Rajesh Pandiyan, Florian Christaller, James P Shaffer","doi":"10.1038/s44172-025-00408-3","DOIUrl":"https://doi.org/10.1038/s44172-025-00408-3","url":null,"abstract":"Rydberg atom-based sensors use atoms dressed by lasers to detect and measure radio frequency electromagnetic fields. The absorptive properties of the atomic gas, configured as a Rydberg atom-based sensor, change in the presence of a radio frequency electromagnetic field. While these sensors are reasonably sensitive, the best conventional radio frequency sensors still outperform Rydberg atom-based sensors with respect to sensitivity. One approach to increase the sensitivity of Rydberg atom-based sensors is to engineer the vapor cell that contains the atomic gas. In this work, we introduce a passive, all-dielectric amplifier integrated into a Rydberg atom-based sensor vapor cell. The vapor cell is a combination of a slot waveguide and a photonic crystal. The structural features of the vapor cell yield a power amplification of ~24 dB. The radio frequency electromagnetic field is coupled adiabatically into the slot waveguide and slowed to increase the interaction between the radio frequency field and the atoms to effectively amplify the incoming signal, i.e., increase the Rabi frequency on the radio frequency transition. The work shows the utility of vapor cell engineering for atom-based quantum technologies and paves the way for other such devices.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"70"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11982356/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144058404","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

Magnetically actuatable 3D-printed endoscopic microsystems. 磁致动3d打印内窥镜微系统。

Communications engineering Pub Date : 2025-04-09 DOI: 10.1038/s44172-025-00403-8

Florian Rothermel, Andrea Toulouse, Simon Thiele, Chris Jung, Johannes Drozella, Robert Steinhoff, Harald Giessen, Alois M Herkommer

{"title":"Magnetically actuatable 3D-printed endoscopic microsystems.","authors":"Florian Rothermel, Andrea Toulouse, Simon Thiele, Chris Jung, Johannes Drozella, Robert Steinhoff, Harald Giessen, Alois M Herkommer","doi":"10.1038/s44172-025-00403-8","DOIUrl":"https://doi.org/10.1038/s44172-025-00403-8","url":null,"abstract":"In endoscopy, there is a crucial demand for compact system designs to allow for imaging in narrow spaces and reduce the risk of damage during endoscopic procedures. Enhanced functionality of lensed endoscopes can be realized by integrating actuatable imaging systems with flexible fiber bundles. Conventionally fabricated actuatable endoscopes are, however, limited in their miniaturization capability, typically resulting in system diameters greater than 1 mm. In this work, we present highly compact magnetically actuatable 3D-printed and endoscopically integrated microsystems that are fabricated on the end-facet of imaging fiber bundles using two-photon polymerization. Electromagnetic microcoils affixed to the fiber bundles are utilized to stimulate embedded polymer-magnets to achieve axial, lateral, or rotatory displacement of microoptical elements leading to zooming, resolution enhancement, and increased field of view capabilities. All demonstrated systems achieve overall system diameters well below 900 µm, marking a distinct advancement in the miniaturization of actuatable endoscopic devices. This work demonstrates the feasibility of integrating highly functional and compact optical systems within endoscopes, unlocking new potential for their application in diverse fields, for example in minimally invasive (\"keyhole\") surgery or intravascular imaging.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"69"},"PeriodicalIF":0.0,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11982310/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144054608","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