Results 31 to 40 of about 700,528 (250)

Making Sense of Turkey’s Air and Missile Defense Merry-go-round

All Azimuth A journal of foreign policy and peace, 2018
At some point during 2013, Turkey’s political authority began to treat the in-country development and production of long-range air and missile defense systems as a priority.
Sıtkı Egeli
semanticscholar   +1 more source

Analysis of multicarrier frequency diverse array radar over time

IET Signal Processing, 2022
The frequency diverse array (FDA) can provide degrees of freedom in both the range and angle domains by controlling the frequency offset across adjacent elements.
Yingjian Zhao, Bo Tian, Chunyang Wang, Jian Gong, Ming Tan, Changlin Zhou   +5 more
doaj   +1 more source

Analysis of the Optimal Frequency Band for a Ballistic Missile Defense Radar System

Journal of Electromagnetic Engineering and Science, 2018
In this paper, we consider the anti-attack procedure of a ballistic missile defense system (BMDS) at different operating frequencies at its phased-array radar station.
Dang‐An Nguyen, B. Cho, C. Seo, Jeongho Park, Dong-Hui Lee   +4 more
semanticscholar   +1 more source

A Dual‐Channel Synergistic Ultrasensitive Biosensor for Tumor Liquid Biopsy

Advanced Science, EarlyView.
ABSTRACT Liquid biopsy technology, which detects circulating tumor DNA (ctDNA) in cerebrospinal fluid, plays a crucial role in the early diagnosis and precision treatment of gliomas. However, the intrinsically low abundance and rapid clearance of ctDNA pose substantial challenges for conventional analytical techniques, such as droplet digital PCR and ...
Yu Sun, Jing Zhang, Chenqing Liu, Jing Lou, Sihui Wang, Xiangtian Ji, Xiaofang Zhao, Shirui Xu, Jingyu Feng, Bin Liu, Chao Chang, Qinggang Ge, Jun Yang   +12 more
wiley   +1 more source

Development of a Driving Cycle for Fuzhou Using K-Means and AMPSO

Journal of Advanced Transportation, 2021
The driving cycle is a speed-to-time curve, a fundamental technique in the automotive industry, and also a basis to set standards for fuel consumption and emissions of vehicles.
Minrui Zhao, Hongni Gao, Qi Han, Jiaang Ge, Wei Wang, Jue Qu   +5 more
doaj   +1 more source

Fish Scales: A Multifunctional Biomaterial from Nature

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Fish scales demonstrate nature's solution to impact protection through overlapping multilayered architecture. This biological design combines mineralized surfaces with collagen networks to achieve both flexibility and fracture resistance. The structural principles inspire advanced protective materials and biomedical implants, where damage tolerance ...
Liyao Dong, Xiaojie Sun, Xiguang Chen
wiley   +1 more source

Multimode‐Assisted Broadband Impedance‐Gradient Thin Metamaterial Absorber

Advanced Photonics Research, 2022
Metamaterials have become a promising alternative for stealth technology due to their impressive abilities to freely manipulate electromagnetic waves.
Yanzhao Wang, He-Xiu Xu, Chaohui Wang, Huiling Luo, Shaojie Wang, Mingzhao Wang   +5 more
doaj   +1 more source

Missile Defense and the Security Dilemma: THAAD, Japan's “Proactive Peace,” and the Arms Race in Northeast Asia

Asia-Pacific Journal, 2017
The U.S. deployed a missile defense system, Terminal High Altitude Area Defense (THAAD) in South Korea in April 2017, citing North Korea's nuclear and missile “threats” as justification.
Jj Suh
semanticscholar   +1 more source

Organic photonic synaptic transistors for bionic vision: From spectral engineering to flexible intelligent perception

FlexMat, EarlyView.
Different wavelength photonic synapses are used for biomimetic visual applications. Abstract Bionic intelligent visual perception systems have significant application prospects in fields such as autonomous driving and robotics, medical imaging and auxiliary diagnosis, security and monitoring.
Longlong Jiang, Shan Wu, Silu Feng, Heyi Huang, Wangyu Wu, Hong Han, Yao Ni   +6 more
wiley   +1 more source

Adolescents' Long‐Term Identity Tension After Politicized Cyber Shaming: Peer Support and Behavioural Visibility Management As Joint Conditions

Journal of Adolescence, EarlyView.
ABSTRACT Introduction Politicized cyber shaming recodes adolescents' cultural interests as evidence of political loyalty or moral belonging. This study examines how such shaming is associated with longer‐term identity tension in adolescence, focusing on public expression, peer belonging, and self‐evaluation after politicized online controversy ...
Linsen Yang
wiley   +1 more source