Results 1 to 10 of about 139,044 (184)

Field Explosives Detectors—Current Status and Development Prospects [PDF]

Sensors
This review critically evaluates the performance of approximately 80 commercially available mobile detectors for explosive identification. The majority of devices utilize Ion Mobility Spectrometry (IMS), Fourier Transform Infrared Spectroscopy (FTIR), or
Dariusz Augustyniak, Mateusz Szala
doaj   +2 more sources

Experimentation of a new type of permissible explosive under the specific conditions of the Jiu Valley mines [PDF]

MATEC Web of Conferences, 2021
At the underground mining works performed in coal, rock and mixed coal & rocks, the process applied almost exclusively is by drilling & blasting. Given that the mines in the Jiu Valley are classified as methane mines, this involves the use of explosives ...
Laszlo Robert, Ghicioi Emilian, Radeanu Cristian, Garaliu Busoi Bogdan, Ilici Stefan   +4 more
doaj   +1 more source

Shock wave formation from head-on collision of two subsonic vortex rings

Scientific Reports, 2022
Vortex ring collisions have attracted intense interest in both water and air studies (Baird in Proc R Soc Lond Ser Math Phys Sci 409:59–65, 1987, Poudel et al. in Phys Fluids 33:096105, 2021, Lim and Nickels in Nature 357:225, 1992, New et al.
Rachel L. Bauer, Cody J. Thomas, Everett V. P. Baker, Emily M. Johnson, Kelly R. Williams, Martin J. Langenderfer, Catherine E. Johnson   +6 more
doaj   +1 more source

High-Fidelity Mock Development for the Insensitive High Explosive TATB

Crystals, 2022
Due to the violent reaction potential of high explosives, in tests where a reaction is not desired, it can be safe and convenient to use an inert mock that can mimic relevant properties of the associated explosive.
Alexandra C. Burch, Matthew J. Herman, Caitlin S. Woznick, Thuy-Ai D. Nguyen, Brian L. Scott, John D. Yeager   +5 more
doaj   +1 more source

Laboratory-Scale Investigation on Shear Behavior of Non-Persistent Joints and Joint Infill Using Lattice-Spring-Based Synthetic Rock Mass Model

Geosciences, 2023
Discontinuities mainly control the mechanical behavior of rock mass and cause a significant reduction in the rock mass strength. Joint persistency and joint infill conditions are considered the most significant joint parameters that control the ...
Mariam Al-E’Bayat, Taghi Sherizadeh, Dogukan Guner   +2 more
doaj   +1 more source

A family of oligo(p‐phenylenevinylene) derivative aggregation‐induced emission probes: Ultrasensitive, rapid, and anti‐interfering fluorescent sensing of perchlorate via precise alkyl chain length modulation

Aggregate, 2023
The precise regulation of interactions provided by aggregation‐induced emission (AIE) probes is of considerable significance for improving the sensing performance in the field of on‐site detection. Here, a highly sensitive perchlorate detection probe was
Fangfang Xiao, Yushu Li, Jiguang Li, Da Lei, Guangfa Wang, Tianshi Zhang, Xiaoyun Hu, Xincun Dou   +7 more
doaj   +1 more source

Highly Retentive, Anti‐Interference, and Covert Individual Marking Taggant with Exceptional Skin Penetration

Advanced Science, 2022
The development of high‐performance individual marking taggants is of great significance. However, the interaction between taggant and skin is not fully understood, and a standard for marking taggants has yet to be realized. To achieve a highly retentive,
Lianggen Zhong, Jiguang Li, Baiyi Zu, Xiaodan Zhu, Da Lei, Guangfa Wang, Xiaoyun Hu, Tianshi Zhang, Xincun Dou   +8 more
doaj   +1 more source

Evaluating the Effect of Overburden Depth, Mining Height, and Support Density on Coal Rib Damage Using DEM Modeling

Geosciences, 2023
There has been a global effort in the past decade, especially in major coal-producing countries, toward understanding the mechanics involved in the stability of coal mine ribs.
Maurice Sunkpal, Taghi Sherizadeh, Dogukan Guner   +2 more
doaj   +1 more source

Recent advances in the synthesis and energetic properties of potassium-based potential green primary explosives

Defence Technology, 2022
Primary explosives are utilized as a reliable initiator for secondary explosives in an extensive range of military and civilian operations. Heavy–metal–based primary explosives are moderate performing, more sensitive, and environmentally hazardous ...
Qamar-un-Nisa Tariq, Saira Manzoor, Maher-un-Nisa Tariq, Wen-Li Cao, Jian-Guo Zhang   +4 more
doaj   +1 more source

Testing method of explosive function based on motion energy balance [PDF]

ITM Web of Conferences, 2022
The functional capacity of explosives is an important indicator for evaluating the explosive power of explosives. Based on the motion energy balance and the principle of artillery launching, this paper designs a functional capacity evaluation device for ...
Zhang Xin, Xu Chundong, Shi Yucheng, Zhang Xuehui   +3 more
doaj   +1 more source