Results 21 to 30 of about 10,288 (251)

Microstructure Design and Performance Optimization of Constant Modulus Pentamode Materials Acoustic Cloak

Crystals, 2022
Underwater acoustic stealth has great scientific research value. According to acoustic coordinate transformation theory, the acoustic stealth cloak based on pentamode materials can realize underwater broadband acoustic stealth.
Ziyin Luo, Qizheng Zhou, Peng Guo
doaj   +1 more source

Fort Mose Weaponry 1

, 2022
An exhibit showcasing weaponry used at Fort Mose, including an 18th-century flintlock pistol replica, musket balls, lead shots, and gunflints, emphasizing the military readiness of the fort.https://stars.library.ucf.edu/staugustine2022/1135/thumbnail ...
Howard, Wendy S
core  

A Novel Anti-DRFM Active Jammer Method for Two-Station Netted Radar Based on Extended Kalman Filtering

International Journal of Antennas and Propagation
Active jammers in the form of digital radio frequency memory (DRFM) could produce false targets with a coherence of range and velocity, making it increasingly efficient in interrupting radar systems based on data correlation analysis.
Yasong Luo, Zhaodong Wu, Chengxu Feng, Shengliang Hu   +3 more
doaj   +1 more source

Early Body Mass Index z‐Score Change and Resolution of Severe Malnutrition in Children With Sickle Cell Anemia in a Low‐Income Setting: A Prospective Single‐Arm Extension Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with sickle cell anemia (SCA) in low‐income settings are at risk of severe malnutrition, but optimal nutritional management has not been established. We evaluated an intensified ready‐to‐use therapeutic food (RUTF) regimen in children with persistent severe malnutrition after initial treatment and assessed whether early ...
Safiya Gambo, Shehu Umar Abdullahi, Hassan Adam Murtala, Halima Kabir, Khadija A. Shamsu, Sari A. Acra, Virginia A. Stallings, Mark Rodeghier, Michael R. DeBaun, Lauren J. Klein   +9 more
wiley   +1 more source

Analysis of Guerrilla Warfare and Weaponry Resources in The Java War Led by Prince Diponegoro Against the Colonizers in 1825-1830 [PDF]

This qualitative research article critically examines Prince Diponegoro's use of guerrilla warfare tactics during the Java War of 1825-1830, contrasting them with the evolving weapon technologies employed by Javanese insurgents and Dutch colonial forces.
Setyanjana, Andre Yoan, Affandi, Lutfi Adin, Asmoro, Novky, Marsono, Marsono   +3 more
core   +1 more source

One more time about tactics and weaponry [PDF]

, 2021
Mark W. Shearwood’s study is devoted to the use of plug bayonets in the English army in the second half of the 17th and early 18th centuries. The author has shown that the plug bayonet was a more universal weapon than the socket bayonet.
Sowa, Jan Jerzy
core   +1 more source

A 3D Multipath Planning Method for Guided Vehicles Using Improved A∗ Algorithm Based on Multiple Avoidance Tactics and Terminal Attack Angles

International Journal of Aerospace Engineering
Existing path planning methods have limitations such as random solutions, lack of sharing initial and terminal waypoints, and rare consideration of avoidance between multipaths in 3D. This paper presents a 3D multipath planning method for guided vehicles
Jun Huang, Pengfei Wu, Xiaobao Li, Yue Liu   +3 more
doaj   +1 more source

Dynamic Doppler Characteristics of Maritime Airborne Corner Reflector

Journal of Marine Science and Engineering
The maritime airborne corner reflector (ACR) is a radar reflector that can measure wind speed in an unknown sea area in real time over a long distance. To improve our understanding of how the ACR works, we investigated the Doppler characteristics of the ...
Lingang Wu, Shengliang Hu, Chengxu Feng, Yasong Luo, Zhong Liu, Li Lin   +5 more
doaj   +1 more source

Experience With Performing Rheocarna Therapy via the Single‐Needle Method for Treatment of Chronic Limb‐Threatening Ischemia

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction This study investigated the safety and efficacy of single‐needle Rheocarna therapy for chronic limb‐threatening ischemia (CLTI) with wounds. Methods Six patients with CLTI involving ulcers unresponsive to revascularization underwent single‐needle Rheocarna treatment.
Yasutaka Yamauchi, Rie Tanaka, Reona Kawahira, Shingo Nabeta, Kouhei Naoi, Kazuhito Kitajima, Akira Wada, Tomonari Takagi, Norihiko Ohura, Akira Miyamoto   +9 more
wiley   +1 more source

FFR-YOLO: A Frequency-Guided Fusion Reconstruction Network for Small-Object Detection in Remote Sensing Images

Remote Sensing
To address the challenges of small scales, weak features, complex backgrounds, and misalignment in multi-scale fusion for small-object detection in remote sensing images, this study proposes a frequency-guided fusion reconstruction YOLO (FFR-YOLO), an ...
Pengfei Zhang, Jianqiang Zhang, Jian Liu, Xingda Li, Yiping Liu, Ling Tan   +5 more
doaj   +1 more source