Communications engineering最新文献_第10页

Recent progress in hybrid diamond photonics for quantum information processing and sensing. 用于量子信息处理和传感的混合金刚石光子学研究进展。

Communications engineering Pub Date : 2025-05-08 DOI: 10.1038/s44172-025-00398-2

Ryota Katsumi, Kosuke Takada, Fedor Jelezko, Takashi Yatsui

引用次数: 0

Lifecycle carbon intensity with embodied emissions of battery and hydrogen-driven integrative low-carbon systems. 电池和氢驱动的综合低碳系统的生命周期碳强度。

Communications engineering Pub Date : 2025-05-07 DOI: 10.1038/s44172-025-00411-8

Aoye Song, Xiaohan Zhang, Zhaohui Dan, Yuekuan Zhou

{"title":"Lifecycle carbon intensity with embodied emissions of battery and hydrogen-driven integrative low-carbon systems.","authors":"Aoye Song, Xiaohan Zhang, Zhaohui Dan, Yuekuan Zhou","doi":"10.1038/s44172-025-00411-8","DOIUrl":"https://doi.org/10.1038/s44172-025-00411-8","url":null,"abstract":"Carbon neutrality targets rely on the flexible, fast-response characteristics of batteries, and the high energy density and clean byproduct of hydrogen. However, the potential role of battery and hydrogen circular economies in the carbon neutrality transition remains uncertain. In this study, a future clean power grid and its impact on the lifecycle carbon footprint of battery and hydrogen circular economies have been predicted. A database of the lifecycle carbon footprint is set up from raw material to recycling. Additionally, a carbon intensity map of lifecycle stages of batteries and hydrogen storage across climate regions in China is provided. The proposed zero-energy paradigm is economically feasible with the obtained levelized net present value ranging from 0.0119 US$ per kWhe (Kunming) to 0.0574 US$ per kWhe (Guangzhou). The findings aim to clarify the role of battery and hydrogen circular economies in the carbon neutrality transition and provide a comprehensive analysis of hydrogen and battery technologies for policy decision-makers.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"84"},"PeriodicalIF":0.0,"publicationDate":"2025-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12059034/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143999305","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

Space temperature traceability based on near-site transfer of miniature fixed points. 基于微型固定点近场转移的空间温度溯源。

Communications engineering Pub Date : 2025-05-05 DOI: 10.1038/s44172-025-00419-0

Ruiheng Sima, Xiaopeng Hao, Jian Song, Ling Ling, Jingjing Zhou, Hong Qi, Mingjian Gu, Lei Ding

{"title":"Space temperature traceability based on near-site transfer of miniature fixed points.","authors":"Ruiheng Sima, Xiaopeng Hao, Jian Song, Ling Ling, Jingjing Zhou, Hong Qi, Mingjian Gu, Lei Ding","doi":"10.1038/s44172-025-00419-0","DOIUrl":"https://doi.org/10.1038/s44172-025-00419-0","url":null,"abstract":"Long-term remote sensing precision depends on real-time radiation calibration, challenging the stability and accuracy of spaceborne calibrators in harsh space environments. Miniature fixed points offer a solution for International System of Units traceability of space radiation values. However, traditional in-situ calibration methods face difficulties due to location mismatches between miniature fixed points and radiation surface. We demonstrated a space temperature traceability technology, which realizes continuous temperature self-calibration across all-location region is achieved through near-site transfer mechanism of phase transition characteristics. A transfer link between fixed points-blackbody-remote sensor has been established. We further provided two traceability schemes and deployed eight miniature fixed points covering 234 K to 345 K. Experiments showed repeatability and long-term stability of 6.0 mK and 3.2 mK. Additionally, we exhibited the latest spaceborne blackbody, achieving the first on-orbit replication of 7.4 mK. This technology provides an effective on-orbit traceability path for long-term remote sensing monitoring.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"83"},"PeriodicalIF":0.0,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12053615/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144051751","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 100 Gb s^-1 quantum-confined Stark effect modulator monolithically integrated with silicon nitride on Si. 氮化硅单片集成的100gb s-1量子限制Stark效应调制器。

Communications engineering Pub Date : 2025-05-01 DOI: 10.1038/s44172-025-00421-6

Ilias Skandalos, Thalía Domínguez Bucio, Lorenzo Mastronardi, Guomin Yu, Aaron Zilkie, Frederic Y Gardes

{"title":"A 100 Gb s-1 quantum-confined Stark effect modulator monolithically integrated with silicon nitride on Si.","authors":"Ilias Skandalos, Thalía Domínguez Bucio, Lorenzo Mastronardi, Guomin Yu, Aaron Zilkie, Frederic Y Gardes","doi":"10.1038/s44172-025-00421-6","DOIUrl":"https://doi.org/10.1038/s44172-025-00421-6","url":null,"abstract":"The exponential growth of data-intensive artificial intelligence necessitates ultra-fast and energy efficient transceivers in data centres. Quantum-confined Stark effect (QCSE) modulators offer promising solutions, combining high-speed modulation with minimal footprint and superior energy efficiency. Here, we demonstrate a monolithically integrated O-band Ge/SiGe QCSE modulator operating at 100 Gb s-1, seamlessly integrated with silicon nitride (SiN) waveguides on both silicon and silicon-on-insulator substrates. Our modulator achieves <1 dB coupling loss, <63 fJ bit-1 energy consumption, and >5 dB static extinction ratio, while maintaining performance across a 20-80 °C temperature range. Leveraging CMOS-compatible fabrication processes, we incorporate multiple quantum-well stacks grown at wafer scale on silicon, enabling large-scale production. The modulator's substrate-agnostic integration with back-end of line grown SiN layers, presents a scalable approach for cost-effective co-integration of electronic and photonic components. This work advances high-speed, energy-efficient optical modulators and paves the way for next-generation photonic integrated circuits in data centre interconnects.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"82"},"PeriodicalIF":0.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12046052/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144054490","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

Reservoir controllers design though robot-reservoir timescale alignment. 通过机器人-油藏时间尺度对齐来设计油藏控制器。

Communications engineering Pub Date : 2025-04-30 DOI: 10.1038/s44172-025-00418-1

Fan Ye, Arsen Abdulali, Kai-Fung Chu, Xiaoping Zhang, Fumiya Iida

{"title":"Reservoir controllers design though robot-reservoir timescale alignment.","authors":"Fan Ye, Arsen Abdulali, Kai-Fung Chu, Xiaoping Zhang, Fumiya Iida","doi":"10.1038/s44172-025-00418-1","DOIUrl":"https://doi.org/10.1038/s44172-025-00418-1","url":null,"abstract":"Natural behavior emerging in nonlinear dynamical systems enables reservoir computers to control underactuated robots by approximating their inverse dynamics. Unlike other model-free approaches, the reservoir controllers are sample-efficient, meaning a weighted average of the reservoir output can be trained with a limited amount of pre-recorded data. However, developing and testing the reservoir controller relies on repetitive experiments that require researchers' proficiency in both robot and reservoir design. In this paper, we propose a design method for reliable reservoir controllers by synchronizing the timescales of the reservoir dynamics with those observed in the robot. The results demonstrate that our timescale alignment test filters out 99% of ineffective reservoirs. We further applied the selected reservoirs to computational tasks including short-term memory and parity checks, along with control tasks involving robot trajectory tracking. Our findings reveal that a higher computational capability reduces the control failure rate, though it concurrently increases the trajectory-tracking error.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"81"},"PeriodicalIF":0.0,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12043989/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144042320","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

Thermal fault detection of lithium-ion battery packs through an integrated physics and deep neural network based model. 基于物理和深度神经网络的锂离子电池组热故障检测模型。

Communications engineering Pub Date : 2025-04-28 DOI: 10.1038/s44172-025-00409-2

Mina Naguib, Junran Chen, Phillip Kollmeyer, Ali Emadi

引用次数: 0

Photonic neuromorphic accelerator for convolutional neural networks based on an integrated reconfigurable mesh. 基于集成可重构网格的卷积神经网络光子神经形态加速器。

Communications engineering Pub Date : 2025-04-28 DOI: 10.1038/s44172-025-00416-3

Aris Tsirigotis, George Sarantoglou, Stavros Deligiannidis, Erica Sánchez, David Sanchez, Ana Gutierrez, Adonis Bogris, Jose Capmany, Charis Mesaritakis

{"title":"Photonic neuromorphic accelerator for convolutional neural networks based on an integrated reconfigurable mesh.","authors":"Aris Tsirigotis, George Sarantoglou, Stavros Deligiannidis, Erica Sánchez, David Sanchez, Ana Gutierrez, Adonis Bogris, Jose Capmany, Charis Mesaritakis","doi":"10.1038/s44172-025-00416-3","DOIUrl":"10.1038/s44172-025-00416-3","url":null,"abstract":"Photonic accelerators have risen as energy efficient, low latency counterparts to computational hungry digital modules for machine learning applications. On the other hand, upscaling integrated photonic circuits to meet the demands of state-of-the-art machine learning schemes such as convolutional layers, remains challenging. In this work, we experimentally validate a photonic-integrated neuromorphic accelerator that uses a hardware-friendly optical spectrum slicing technique through a reconfigurable silicon photonic mesh. The proposed scheme acts as an analogue convolutional engine, enabling information preprocessing in the optical domain, dimensionality reduction, and extraction of spatio-temporal features. Numerical results demonstrate that with only 7 photonic nodes, critical modules of a digital convolutional neural network can be replaced. As a result, a 98.6% accuracy on the MNIST dataset was numerically achieved, with an estimation of power consumption reduction up to 30% compared to digital convolutional neural networks. Experimental results using a reconfigurable silicon integrated chip confirm these findings, achieving 97.7% accuracy with only three optical nodes.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"80"},"PeriodicalIF":0.0,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12038015/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144059687","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

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