Results 121 to 130 of about 3,551,083 (339)

Motion-unrestricted dynamic electrocardiogram system utilizing imperceptible electronics

Nature Communications
Electrocardiogram (ECG) plays a vital role in the prevention, diagnosis, and prognosis of cardiovascular diseases (CVDs). However, the lack of a user-friendly and accurate long-term dynamic electrocardiogram (DCG) device in motion has made it challenging
Ding Li, Tian-Rui Cui, Jia-Hao Liu, Wan-Cheng Shao, Xiao Liu, Zhi-Kang Chen, Zi-Gan Xu, Xin Li, Shuo-Yan Xu, Zi-Yi Xie, Jin-Ming Jian, Xu Wang, Lu-Qi Tao, Xiao-Ming Wu, Zhong-Wei Cheng, Zi-Rui Dong, Hou-Fang Liu, Yi Yang, Jun Zhou, Tian-Ling Ren   +19 more
doaj   +1 more source

Broadband millimeter-wave metasurface antenna array with printed ridge gap waveguide for high front-to-back ratio

Journal of Information and Intelligence, 2023
A novel broadband metasurface (MTS) antenna array with high front-to-back ratio (FBR) is proposed for 28 GHz millimeter-wave applications. With slot pairs loaded on patch cells, an aperture-coupled slotted-mushroom MTS antenna is designed to obtain ...
Hao Yi, Yajie Mu, Jiaqi Han, Long Li
doaj  

An analysis/simulation program for power electronic circuits [PDF]

, 1989
D. Vincenti, M. Boost, P.D. Ziogas, Rajni V. Patel   +3 more
openalex   +1 more source

3D In Vitro Glioma‐Neuron‐Astrocyte Biomimetic Composites Recapitulate Key Molecular Mechanisms Linked to Glioblastoma Multiforme Pathophysiology

Advanced Functional Materials, EarlyView.
Glioblastoma multiforme is the most devastating and incurable brain tumor. To better study this disease, a 3D model is developed using a hyaluronic acid‐based hydrogel combined with a multicellular approach. This model recapitulates in vivo brain stiffness, cell‐extracellular matrix and cell‐cell interactions and the tumor's hijacking function with the
Mateo S. Andrade Mier, Esra Türker, Jessica Faber, Mike Friedrich, Zan Lamberger, Jeannette Weigelt, Panthipa Suwannakot, Benedikt Gantert, Abhinav Singh, Vanessa Moessler, Annemarie Sodmann, Nicoletta Murenu, Joachim Schenk, Natascha Schaefer, Torsten Blunk, Aldo R. Boccaccini, Tessa C. Lühmann, Jörg Tessmar, Jeremy M. Crook, Eva Tomaskovic‐Crook, Paul D. Dalton, Gregor Lang, Robert Blum, Reiner Strick, Silvia Budday, Katrin G. Heinze, Carmen Villmann   +26 more
wiley   +1 more source

Oxidation‐Driven Enhancement of Intrinsic Properties in MXene Electrodes for High‐Performance Flexible Energy Storage

Advanced Functional Materials, EarlyView.
By employing a partial oxidation strategy, nanosized pores are introduced into MXene nanosheets. The resulting holey MXene exhibits faster ionic transport, achieving an aerial capacitance 2.5 times that of unmodified MXene electrodes, and demonstrates excellent cycling stability, retaining 91.7% of its capacitance after 10 000 cycles.
Yongfa Cheng, Kunmo Koo, Yukun Liu, Michael L. Barsoum, Zizhen Cai, Omar K. Farha, Xiaobing Hu, Vinayak P. Dravid   +7 more
wiley   +1 more source

Versatile Selective Soldering via Molten Metal Printing for Heat‐Sensitive 3D Electronics and Smart Wearables

Advanced Functional Materials, EarlyView.
Selective soldering via molten metal printing enables component integration, even in heat‐sensitive applications across fields like additive manufacturing, sustainable electronics, and smart textiles. This method overcomes the temperature limitations of existing technologies.
Dániel Straubinger, Peter Koltay, Roland Zengerle, Sabrina Kartmann, Zhe Shu   +4 more
wiley   +1 more source

Multiple orbital angular momentum modes conversion with transmission metasurface

AIP Advances
The orthogonal properties between different orbital angular momentum (OAM) modes of vortex beams have made it a great potential research area in recent years. Manipulating OAM modes is crucial in most research studies and applications of vortex waves. In
Sitong He, Qiang Feng, Qingle Tu, Haixia Liu, Jiaqi Han, Yan Shi, Long Li   +6 more
doaj   +1 more source

Spray-Drying Synthesis of Na₄Fe₃(PO4)₂P₂O₇@CNT Cathode for Ultra-Stable and High-Rate Sodium-Ion Batteries

Molecules
Iron-based phosphate is a promising cathode for sodium-ion batteries due to its low cost and abundant resources; however, the practical application is hindered by poor electronic conductivity, sluggish Na+ diffusion, and a lack of low-cost and scalable ...
Jinri Huang, Ziheng Zhang, Daiqian Chen, Hesheng Yu, Yu Wu, Yuanfu Chen   +5 more
doaj   +1 more source

Fabricating Paper Circuits with Subtractive Processing [PDF]

arXiv
This paper introduces a new method of paper circuit fabrication that overcomes design barriers and increases flexibility in circuit design. Conventional circuit boards rely on thin traces, which limits the complexity and accuracy when applied to paper circuits.
arxiv  

Print‐and‐Plate Architected Electrodes for Electrochemical Transformations Under Flow

Advanced Functional Materials, EarlyView.
Typical flow cell electrodes are composed of stochastic porous carbon, limiting understanding of electrode structure‐performance relationships. This work describes an approach, termed “print‐and‐plate,” to prepare porous electrodes by direct ink writing followed by conformal metal coating.
Dylan M. Barber, Sofía Edgar, Michael S. Emanuel, Michael D. Nelwood, Bok Yeop Ahn, Benito Román‐Manso, Thomas Cochard, Justin Platero, Kiana Amini, Chris H. Rycroft, Shmuel Rubinstein, Michael J. Aziz, Jennifer A. Lewis   +12 more
wiley   +1 more source