Results 111 to 120 of about 647,811 (336)

Methods for calculating the parameters of drilling and blasting operations based on the primary determination of the zones of destruction of the rock mass [PDF]

open access: yesE3S Web of Conferences
The article considers the dependences of determining the parameters of the destruction zones of the rock mass by explosive charges, proposed by V.N. Mosints, N.P. Gorbachev, M.F. Drukovanny, V.N. Tyupin, B.N. Kutuzov and A.P. Andrievsky and others.
Оchilov Sh.А.   +4 more
doaj   +1 more source

Safe/armed explosive squib [PDF]

open access: yes, 1970
Safe/Armed Firing-Type Initiator /SAFTI/ combines the safety features of existing electromechanical safe-arm devices with the weight and size of a standard initiator and the functioning speed of a ...
Parker, L. C.
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Innovations in Borehole Design for Mass Blasting

open access: yesТехнічна інженерія
This article comprehensively explores the technology of dispersed borehole charges, its advantages, modern implementation methods, innovations that improve the effectiveness of blasting operations, and provides practical recommendations for using this ...
V.O. Sokolovskyi   +3 more
doaj   +1 more source

A brief history of the development of blasting and the modern theory of rock breaking

open access: yesJournal of Degraded and Mining Lands Management, 2016
The article is devoted to the task today to improve the effectiveness of blasting during construction of horizontal and inclined mine excavations. Construction of new and reconstruction of existing mines requires large volume of excavation works, which ...
A.K. Kirsanov   +2 more
doaj   +1 more source

Electrical discharge apparatus for forming Patent [PDF]

open access: yes, 1965
Electric discharge apparatus for electrohydraulic explosive ...
Schwinghamer, R. J.
core   +1 more source

On High Explosive Launching of Projectiles for Shock Physics Experiments

open access: yes, 2007
The hydrodynamic operation of the `Forest Flyer' type of explosive launching system for shock physics projectiles was investigated in detail using one- and two-dimensional continuum dynamics simulations.
Buttler, William T.   +5 more
core   +1 more source

Photoswitching Conduction in Framework Materials

open access: yesAdvanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez   +4 more
wiley   +1 more source

A novel environmentally friendly 2,4,6-trinitrotoluene (TNT) based explosive

open access: yesMacedonian Journal of Chemistry and Chemical Engineering, 2008
A novel bioremediation technology has been developed. This technology involves the incorporation of a newly isolated Pseudomonas putida GG04 and Bacillus sp.
Gibson S. Nyanhongo   +4 more
doaj   +1 more source

Dynamic allocation and transfer of non-structural carbohydrates, a possible mechanism for the explosive growth of Moso bamboo (Phyllostachys heterocycla)

open access: yesScientific Reports, 2016
Moso bamboo can rapidly complete its growth in both height and diameter within only 35–40 days after shoot emergence. However, the underlying mechanism for this “explosive growth” remains poorly understood.
Xinzhang Song   +5 more
semanticscholar   +1 more source

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