Results 11 to 20 of about 10,288 (251)

Male weaponry in a fighting cricket. [PDF]

open access: yes, 2008
Sexually selected male weaponry is widespread in nature. Despite being model systems for the study of male aggression in Western science and for cricket fights in Chinese culture, field crickets (Orthoptera, Gryllidae, Gryllinae) are not known to possess
Kevin A Judge   +3 more
core   +1 more source

Adversary Weaponry to 2025 [PDF]

open access: yes, 2012
This chapter will provide an overview of adversary weaponry that will be utilized by criminals and opposing forces (OPFORs) which U.S. law enforcement personnel may encounter domestically.
Bunker, Robert J.
core   +1 more source

Operational Efficiency Evaluation of the Weaponry System Supported by Information System [PDF]

open access: yes, 2011
Information is the operational efficiency multiplier of modern weaponry system. Firstly, the operational efficiency multiplication constant of weaponry is defined, and the operational efficiency evaluation model of the weaponry system supported by ...
Duan Hongmei   +7 more
core   +1 more source

Rotating Machinery Remaining Useful Life Prediction Scheme Using Deep-Learning-Based Health Indicator and a New RVM

open access: yesShock and Vibration, 2021
Remaining useful life (RUL) prediction plays a significant role in developing the condition-based maintenance and improving the reliability and safety of machines.
Gang Zhang   +3 more
doaj   +1 more source

A Spatial Registration Method for Multi-UAVs Based on a Cooperative Platform in a Geodesic Coordinate Information-Free Environment

open access: yesApplied Sciences, 2023
The satellite navigation system of Unmanned Aerial Vehicles (UAVs) is susceptible to external interference in a complex environment, resulting in the loss of their own geodetic coordinate information. A spatial registration method for multi-UAVs based on
Qiuyang Dai, Faxing Lu, Junfei Xu
doaj   +1 more source

Acoustic Scattering Characteristics of Underwater Eight-grid Air-filled Cavity Corner Reflector

open access: yes水下无人系统学报, 2022
Underwater corner reflectors have a strong acoustic scattering ability and can be used to mark underwater structures and simulate underwater false targets. In accordance with the limitation of the reflection range of a single-grid corner reflector, a new
Zi-chao CHU, Yi LUO, Wu-di WEN
doaj   +1 more source

Ancient Russian Inlaid Spurs from Vasilevschina (Dzyarzhynsk District, Minsk Oblast). Stabilization, Conservation and Exhibition Experience

open access: yesАрхеология евразийских степей, 2021
The archaeological exposition is presently being reconstructed at the Institute of History of the National Academy of Sciences of Belarus. A significant portion of the exhibits is composed of iron items discovered during both scheduled and rescue ...
Anastasia V. Kostyukevich
doaj   +1 more source

The Jewel of Men: Weaponry as Material Religion among Muslim Communities [PDF]

open access: yes, 2023
Warcraft, crafting weapons, and weapon-handling have considerable literary, intellectual, and religious history among Muslim communities. Accordingly, Muslims have formed traditions, practices, laws, and locally situated meanings around weaponry since ...
Saramifar, Younes; id_orcid   +1 more
core   +1 more source

Equivalent Phase Shift Induced by Longitudinal Temperature Distribution in Pumped DFB Fiber Laser

open access: yesPhotonics
The pump heating effect of DFB fiber laser is normally ignored due to the short length of the laser cavity. However, by fabricating a phase-shifted FBG on high concentration Er-Yb codoped fiber to obtain a 16 mm long DFB fiber laser, the gradient surface
Wen Liu   +6 more
doaj   +1 more source

Home - About - Disclaimer - Privacy