Results 21 to 30 of about 126,840,927 (235)

Characteristics and Energy Distribution of Blast-Induced Ground Vibration in Deep-Hole Blasting

Buildings, 2023
This study proposes an incremental extreme extraction method based on the waveform characteristics of ground vibration signals obtained from open-pit mines to investigate the distribution and characteristics of ground vibration from deep-hole blasting ...
Shijie Bao, Honglu Fei, Gang Hu
doaj   +1 more source

CFD modeling to study the effect of particle size on dispersion in 20l explosion chamber: An overview

International Journal of Mining Science and Technology, 2020
Mine disasters occur predominantly due to methane or coal dust explosion or a combination of both. Among the top ten worst coal mine disasters in India, nine are due to coal dust explosion. The current paper describes a general overview of the parameters
Santosh Kumar Ray, Niroj Kumar Mohalik, Asfar Mobin Khan, Debashish Mishra, Nikhil Kumar Varma, Jai Krishna Pandey, Pradeep Kumar Singh   +6 more
doaj   +1 more source

Experimental analysis of the pressure–velocity correlations of external unsteady flow over rocket launchers [PDF]

, 2013
Based on simultaneous wall pressure and velocity measurements, the aerodynamic load of a launcher body model is investigated. Two different configurations are considered in order to study the influence of geometrical artifacts on the after body flow and ...
DRUAULT, Philippe, MARIÉ, Simon, LAMBARE, Hadrien, SCHRIJER, Ferry, Marie, S., Druault, Ph, Schrijer, F., Lambare, H.   +7 more
core   +1 more source

New Technology – Demonstration of a Vector Velocity Technique [PDF]

Ultraschall in der Medizin - European Journal of Ultrasound, 2011
With conventional Doppler ultrasound it is not possible to estimate direction and velocity of blood flow, when the angle of insonation exceeds 60-70°. Transverse oscillation is an angle independent vector velocity technique which is now implemented on a conventional ultrasound scanner.
Møller Hansen, Peter, Pedersen, Mads M, Hansen, Kristoffer L, Nielsen, Michael Bachmann, Jensen, Jørgen Arendt   +4 more
openaire   +3 more sources

ТЕХНОЛОГИЯ VELOCITY VECTOR IMAGING И СТАНДАРТНОЕ ЭХОКАРДИОГРАФИЧЕСКОЕ ИССЛЕДОВАНИЕ В ОЦЕНКЕ МИОКАРДА ЛЕВОГО ЖЕЛУДОЧКА ПРИ ИНФАРКТЕ БЕЗ ПАТОЛОГИЧЕСКОГО ЗУБЦА Q

, 2020
The purpose of the study was to assess the function of fibres of the left ventricle (LV) and its dynamics after revascularization in patients with non Q myocardial infarction using standard Echocardiography (EchoCG) and Velocity Vector Imaging (VVI ...
A. Yu. Vasilyev, А. Ю. Васильев, E. B. Petrova, Е. Б. Петрова   +3 more
core   +1 more source

ФУНКЦИЯ ВОЛОКОН ЛЕВОГО ЖЕЛУДОЧКА И ЕЕ ДИНАМИКА ПОСЛЕ РЕВАСКУЛЯРИЗАЦИИ В ЗАВИСИМОСТИ ОТ ДАВНОСТИ ПЕРЕНЕСЕННОГО ИНФАРКТА ПРИ ИСПОЛЬЗОВАНИИ ТЕХНОЛОГИИ VELOCITY VECTOR IMAGING

, 2020
Indicators of function of fibers of the left ventricle (LV) are strain (S) and strain rate (SR). The aim: To evaluate the function of fibers of the LV and its dynamics after surgical revascularization, depending on the remoteness of a myocardial ...
Марина Вадимовна Федорова, Евгений Борисович Шахов, E. B. Shakhov, M. V. Fedorova, E. B. Petrova, Екатерина Борисовна Петрова   +5 more
core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Identification of a Shiga toxin A‐derived peptide internalized into Gb3 receptor‐bearing cells via interaction with the Shiga toxin B subunit

FEBS Letters, EarlyView.
The process of internalization of the Shiga toxin A subunit via formation of a complex with the Shiga toxin B subunit, which specifically binds to the Gb3 receptor. The peptide is designed to act as a carrier of drugs into cancer cells. Here, we explored the potential of peptides derived from the catalytic A subunit of Shiga toxin (STxA) to be drug ...
Giulia Opassi, João C. Encarnação, Valeria Napolitano, Grzegorz Dubin, Grzegorz Popowicz, Karl Andersson, U. Helena Danielson   +6 more
wiley   +1 more source

Real-Time Navigation of Nonholonomic Mobile Robots under Velocity Vector Control

International Journal of Advanced Robotic Systems, 2012
In this paper, linear navigation law is studied in depth and we suggest an efficient, practical and simple approach for nonholonomic mobile robot navigation under velocity vector control based on the linear navigation law.
Zi-Hui Zhang, Yue-Shan Xiong, Pei Fan, Yue Liu, Matis Cheng   +4 more
doaj   +1 more source