Communications engineering最新文献_第2页

Combined strategies for promoting short-chain fatty acids production from waste activated sludge in anaerobic fermentation. 厌氧发酵中促进废活性污泥生产短链脂肪酸的组合策略。

Communications engineering Pub Date : 2025-07-08 DOI: 10.1038/s44172-025-00436-z

Xiaodi Li, Lu Wang, Mianfeng Zhang, Bo Wang, Wei Zeng, Yongzhen Peng

引用次数: 0

Ultrasonographic-guided robotic-assisted percutaneous nephrolithotomy. 超声引导下机器人辅助经皮肾镜取石术。

Communications engineering Pub Date : 2025-07-08 DOI: 10.1038/s44172-025-00451-0

Stefano Bazzani, Stefano Puliatti, Stefania Ferretti, Giampaolo Bianchi, Cristian Secchi, Federica Ferraguti

引用次数: 0

A high-precision 1 × 15 infrared temperature measurement linear array based on thermopile sensors. 基于热电堆传感器的高精度1 × 15红外测温线性阵列。

Communications engineering Pub Date : 2025-07-08 DOI: 10.1038/s44172-025-00456-9

Jindong Bai, Wenhang Yang, Shouzheng Zhu, Haijun Jin, Yuchen Zhang, Ke Jin, Xiaoshuai Liu, Chunlai Li, Jianyu Wang, Hongxing Qi, Shijie Liu

{"title":"A high-precision 1 × 15 infrared temperature measurement linear array based on thermopile sensors.","authors":"Jindong Bai, Wenhang Yang, Shouzheng Zhu, Haijun Jin, Yuchen Zhang, Ke Jin, Xiaoshuai Liu, Chunlai Li, Jianyu Wang, Hongxing Qi, Shijie Liu","doi":"10.1038/s44172-025-00456-9","DOIUrl":"10.1038/s44172-025-00456-9","url":null,"abstract":"In applications such as those in the semiconductor industry, precise temperature measurements with low power consumption are crucial. This article presents a novel noncontact temperature measurement method with low power consumption and high precision, and a thermopile sensor-based linear array for surface temperature measurements is used in semiconductor manufacturing and temperature calibration applications. The array consists of 15 thermopile sensors, a negative temperature coefficient (NTC) thermistor, an FPGA control board with a fiber optic interface, and a motion module. Moreover, the total power consumption of the board is less than 1.5 W. On the FPGA control board, a multiparameter temperature compensation algorithm is used to address intrinsic temperature differences and consistency errors among the sensors. Compared with the traditional two-point calibration method, the temperature measurement accuracy of the proposed method reaches 26 mK in the temperature range of 293-303 K, the maximum repeatability error of the sensor is less than 5.5 mK, and the non-uniformity error between 15 sensors is less than 11.9 mK. The array and its replicas were subjected to more than 6 h of rigorous testing, demonstrating their high stability, with the reduction in accuracy not exceeding 1.5 mK.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"119"},"PeriodicalIF":0.0,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12234851/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144585757","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

Scalable reinforcement learning for large-scale coordination of electric vehicles using graph neural networks. 基于图神经网络的电动汽车大规模协调的可扩展强化学习。

Communications engineering Pub Date : 2025-07-01 DOI: 10.1038/s44172-025-00457-8

Stavros Orfanoudakis, Valentin Robu, E Mauricio Salazar, Peter Palensky, Pedro P Vergara

{"title":"Scalable reinforcement learning for large-scale coordination of electric vehicles using graph neural networks.","authors":"Stavros Orfanoudakis, Valentin Robu, E Mauricio Salazar, Peter Palensky, Pedro P Vergara","doi":"10.1038/s44172-025-00457-8","DOIUrl":"10.1038/s44172-025-00457-8","url":null,"abstract":"As the adoption of electric vehicles (EVs) accelerates, addressing the challenges of large-scale, city-wide optimization becomes critical in ensuring efficient use of charging infrastructure and maintaining electrical grid stability. This study introduces EV-GNN, a novel graph-based solution that addresses scalability challenges and captures uncertainties in EV behavior from a Charging Point Operator's (CPO) perspective. We prove that EV-GNN enhances classic Reinforcement Learning (RL) algorithms' scalability and sample efficiency by combining an end-to-end Graph Neural Network (GNN) architecture with RL and employing a branch pruning technique. We further demonstrate that the proposed architecture's flexibility allows it to be combined with most state-of-the-art deep RL algorithms to solve a wide range of problems, including those with continuous, multi-discrete, and discrete action spaces. Extensive experimental evaluations show that EV-GNN significantly outperforms state-of-the-art RL algorithms in scalability and generalization across diverse EV charging scenarios, delivering notable improvements in both small- and large-scale problems.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"118"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12216737/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546336","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

Triple-chord trussed submerged floating tunnels: hybrid construction concept, feasibility and design. 三弦桁架水下浮动隧道：混合施工概念、可行性与设计。

Communications engineering Pub Date : 2025-07-01 DOI: 10.1038/s44172-025-00454-x

Fa-Cheng Wang, Tao Zhuge, Zheng-Qing Cheng, Lin-Hai Han, Jian-Min Zhang, Leroy Gardner

{"title":"Triple-chord trussed submerged floating tunnels: hybrid construction concept, feasibility and design.","authors":"Fa-Cheng Wang, Tao Zhuge, Zheng-Qing Cheng, Lin-Hai Han, Jian-Min Zhang, Leroy Gardner","doi":"10.1038/s44172-025-00454-x","DOIUrl":"10.1038/s44172-025-00454-x","url":null,"abstract":"Submerged floating tunnels (SFT) offer a promising solution for deep-water crossings and intercontinental transportation. However, current SFT designs struggle to meet the high structural performance demands associated with the harsh service environments while remaining economically viable, thus limiting their implementation in practice. Here, we propose a conceptual SFT design using a triple-chord trussed concrete-filled double-skin tubular (CFDST) hybrid structure, featuring CFDST chords and hollow steel tubular braces. This design is highly adaptable and allows the steel tubes and sandwiched concrete to work synergistically, achieving efficiency in withstanding multiple loading conditions including lateral flow, internal fire, fatigue and impact loading. We further develop a multi-scale structural analysis methodology that integrates three-dimensional solid finite element (3-D FE) and simplified fibre modelling for the efficient evaluation of global deformations, fire performance and joint behaviour. The results demonstrate that the proposed design leads to considerably enhanced resistance against lateral flow loading, vibrations and internal fire, and is more adaptable and cost-effective than existing solutions.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"117"},"PeriodicalIF":0.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12217642/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144546337","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

On the limitations of closed-loop geothermal systems for electricity generation outside high-geothermal gradient fields. 高地温梯度田外发电闭环地热系统的局限性。

Communications engineering Pub Date : 2025-07-01 DOI: 10.1038/s44172-025-00458-7

Sri Kalyan Tangirala, Víctor Vilarrasa

引用次数: 0

Integrated process-property modeling of YBa₂Cu₃O₇ superconducting film for data and model driven process design. 基于数据和模型驱动的YBa2Cu3O7超导薄膜工艺特性集成建模

Communications engineering Pub Date : 2025-06-23 DOI: 10.1038/s44172-025-00434-1

Tomoya Horide, Shin Okumura, Shunta Ito, Yutaka Yoshida

{"title":"Integrated process-property modeling of YBa2Cu3O7 superconducting film for data and model driven process design.","authors":"Tomoya Horide, Shin Okumura, Shunta Ito, Yutaka Yoshida","doi":"10.1038/s44172-025-00434-1","DOIUrl":"10.1038/s44172-025-00434-1","url":null,"abstract":"Process engineering of materials determines not only materials properties, but also cost, yield and production capacity. Although process design is generally based on the experience of process engineers, mathematical/data-science modeling is a key challenge for future process optimization. Here we create new opportunities for process optimization in YBa2Cu3O7 film fabrication through data/model-driven process design. We show integrated modelling of substrate temperature and critical current density in YBa2Cu3O7 films. Gaussian process regression augmented by transfer learning and physics knowledge was constructed from a small amount of data to show substrate temperature dependence of critical current density. Non-numerical factors such as chamber design and substrate material were included in the transfer learning, and physics-aided techniques extended the model to different magnetic fields. Magnetic field dependence of critical current density was successfully predicted for a given substrate temperature for a five-sample series deposited using different pulsed laser deposition systems. Our integrated process and property modelling strategy enables data/model-driven process design for YBa2Cu3O7 film fabrication for coated conductor applications.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"114"},"PeriodicalIF":0.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12185723/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144478048","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

Women in quantum. 量子领域的女性。

Communications engineering Pub Date : 2025-06-23 DOI: 10.1038/s44172-025-00449-8

Yan Li, Melissa Mather, Nicole Metje, Angela Sara Cacciapuoti, Lorenza Criscuolo, Laura d'Avossa, Mayu Muramatsu, Maria Maragkou

引用次数: 0

Industry-academia interface: the value of collaborative research and development with Danielle Densley Tingley. 产学研界面：与丹妮尔·丹斯利·廷利合作研究与开发的价值。

Communications engineering Pub Date : 2025-06-23 DOI: 10.1038/s44172-025-00444-z

引用次数: 0

Bioinspired morphology and task curricula for learning locomotion in bipedal muscle-actuated systems. 在两足肌肉驱动系统中学习运动的生物启发形态学和任务课程。

Communications engineering Pub Date : 2025-06-20 DOI: 10.1038/s44172-025-00443-0

Nadine Badie, Firas Al-Hafez, Pierre Schumacher, Daniel F B Haeufle, Jan Peters, Syn Schmitt

{"title":"Bioinspired morphology and task curricula for learning locomotion in bipedal muscle-actuated systems.","authors":"Nadine Badie, Firas Al-Hafez, Pierre Schumacher, Daniel F B Haeufle, Jan Peters, Syn Schmitt","doi":"10.1038/s44172-025-00443-0","DOIUrl":"10.1038/s44172-025-00443-0","url":null,"abstract":"Humans master complex motor skills such as walking and running through a sophisticated blend of learning and adaptation. Replicating this level of skill acquisition with traditional Reinforcement Learning (RL) methods in musculoskeletal humanoid systems is challenging due to intricate control dynamics and over-actuation. Inspired by human developmental learning, here we address these challenges, with a double curriculum approach: a three-stage task curriculum (balance, walk, run) and an up to three-stage morphology curriculum (4 year-old, 12 year-old, adult), mimicking physical growth. This combined approach enables the agent to efficiently learn robust gaits that are adaptable to varying velocities and perturbations. Extensive analysis and ablation studies demonstrate that our method outperforms state-of-the-art exploration techniques for musculoskeletal systems. Our approach is agnostic to the underlying RL algorithm and does not require reward tuning, demonstrations, or specific muscular architecture information, marking a notable advancement in the field.","PeriodicalId":72644,"journal":{"name":"Communications engineering","volume":"4 1","pages":"115"},"PeriodicalIF":0.0,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12181307/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144337298","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