Results 51 to 60 of about 43,315 (266)

Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics

Advanced Science, EarlyView.
The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet, Priyanka Kumari, Sathyanarayana Paladugu, Damian Pociecha, Jakub Karcz, Przemysław Kula, Nataša Vaupotič, Ewa Górecka, Oleg D Lavrentovich   +8 more
wiley   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

Advanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen, Wei Zeng, Zherui Zhao, JiYu Zhao, Ziyan Huang, Zhuo Chen, Kui Zhou, Guanglong Ding, Su‐Ting Han, Ye Zhou   +9 more
wiley   +1 more source

Method for determining phase shift using two-phase interpolation transformation

Радіоелектронні і комп'ютерні системи
This study focuses on a method for accurately determining the phase shift between two harmonic signals. The proposed technique compares the waveform of the combined signal, which is obtained by applying a two-phase interpolation transformation, with a ...
Sergiy Gubin, Sergiy Tyshko, Serhii Bezmenov, Ihor Dovhyi, Emma Chimbanga   +4 more
doaj   +1 more source

A Sprayable Nanoplatform Breaks the Vicious Cycle of Diabetic Wounds via Photoactivated Antioxidant and Drug Delivery

Advanced Science, EarlyView.
A sprayable near‐infrared‐activated nanoplatform incorporating MXene, ZnHCF nanozyme, and deferoxamine efficiently breaks the vicious cycle of diabetic wounds. Upon irradiation, interfacial electron transfer and photothermal effects enhance multi‐enzyme activity, enabling explosive ROS elimination, alleviation of hypoxia, and controlled DFO release ...
Jiahao Guo, Yuanyuan Meng, Qixiang Gui, Xi‐Tao Yang, Yong Fan, Xiaodong Zhu   +5 more
wiley   +1 more source

PROBLEMS PERTAINING TO DIVERSIFICATION OF CIVIL EQUIPMENT IN EQUIPMENT OF MILITARY PURPOSE

Наука и техника, 2009
Study of directions concerning development of military equipment, its modernization with the purpose to improve its military efficiency is an actual problem for the Armed Forces, military science, designers and researchers.The paper analyzes and ...
A. I. Kotlabay, V. A. Korobkin, V. F. Tamelo, I. V. Kostko, S. V. Kondratiev   +4 more
doaj  

Hierarchical Coding Vectors for Scene Level Land-Use Classification

Remote Sensing, 2016
Land-use classification from remote sensing images has become an important but challenging task. This paper proposes Hierarchical Coding Vectors (HCV), a novel representation based on hierarchically coding structures, for scene level land-use ...
Hang Wu, Baozhen Liu, Weihua Su, Wenchang Zhang, Jinggong Sun   +4 more
doaj   +1 more source

Supercritical CO2‐Induced Porous MXene Films for Electromagnetic Interference Shielding and Infrared Stealth

Advanced Science, EarlyView.
The phase transition of supercritical CO2 induces the foaming of dense MXene film without compromise inherent structure of MXene nanosheet. The foamed porous MXene film manifests remarkable EMI shielding and infrared thermal camouflage performances. Moreover, the foaming strategy is broadly adaptable and can be extended to other two‐dimensional films ...
Hui Zhao, Shuai Li, Jiabei He, Tong Gao, Jingfeng Wang, Dongxiao Kan, Wangtu Huo, Lixin Chen   +7 more
wiley   +1 more source

An improved formula for standard hypoxia tolerance time (STT) to evaluate hypoxic tolerance in mice

Military Medical Research, 2018
Background Hypoxia is a primary cause of mountain sickness and a common pathological condition in patients with heart failure, shock, stroke, and chronic obstructive pulmonary disease (COPD).
Gang Xu, Yu-Qi Gao, Yi-Xing Gao, Gang Wu, Jian-Yang Zhang, Wen-Xiang Gao   +5 more
doaj   +1 more source

Cholesterol‐Mediated Metabolic‐mechanotransductive Crosstalk Orchestrates Castration Resistance in Prostate Cancer

Advanced Science, EarlyView.
Full androgen deprivation (FAD) induces paracrine cholesterol in prostate cancer that drives the polarization of cancer‐associated fibroblasts (CAFs) and subsequent elevated matrix stiffness. Matrix stiffness in turn potentiates tumor cell survival under FAD pressure via dual mechanotransductive activation of the IRE1α‐XBP1s stress‐response axis ...
Shaojie Liu, Chao Xu, Jun Jiang, Limin He, Yike Zhou, Zhengxuan Li, Yu Li, Keying Zhang, Fa Yang, Tong Lu, Hongtao Song, Hai Zhu, Zhihao Hu, Xiaolong Zhao, Kai Gan, Hongji Li, Bo Yang, Rui Zhang, Weihong Wen, Donghui Han, Weijun Qin   +20 more
wiley   +1 more source

Challenges of the Military Logistics System in the Third Decade of the 21st Century: Procurement of Modern Combat Systems

Polish Political Science Yearbook
The subject of the research is the impact of the purchase of military equipment for the Polish Armed Forces on the military logistics system, resulting from the need for technical modernization of the Polish Armed Forces.
Sławomir Byłeń , Szymon Mitkow
doaj   +1 more source