Results 21 to 30 of about 12,643,529 (294)

The Mechanical Properties of Granite under Ultrasonic Vibration

Advances in Civil Engineering, 2019
The new technique of using ultrasonic vibration to break hard rock is still in the experimental stage, but it has significant potential for improving the efficiency of hard rock crushing.
Yu Zhou, Qiongqiong Tang, Shulei Zhang, Dajun Zhao   +3 more
doaj   +1 more source

Machining-induced thermal damage in cortical bone: Necrosis and micro-mechanical integrity

Materials & Design, 2021
In bone cutting, the tissue is exposed to necrosis due to temperature elevation, which can significantly influence postoperative results in orthopaedic surgeries.
Jose A. Robles-Linares, Dragos Axinte, Zhirong Liao, Andres Gameros   +3 more
doaj   +1 more source

A Comparative Study on the Performance of Single and Multi-Layer Encapsulated Phase Change Material Packed-Bed Thermocline Tanks

Energies, 2021
This paper presents a numerical study that aims at investigating the effects of different parameters on the dynamic performance of single and multi-layer encapsulated phase material (PCM) thermocline tanks.
Huiqian Guo, ELSaeed Saad ELSihy, Zhirong Liao, Xiaoze Du   +3 more
doaj   +1 more source

Conditional Invariants [PDF]

Proceedings of the National Academy of Sciences, 1941
Not ...
openaire   +2 more sources

Conditional independence, conditional mixing and conditional association [PDF]

Annals of the Institute of Statistical Mathematics, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Implications of the Ganea Condition [PDF]

, 2004
Suppose the spaces X and X cross A have the same Lusternik-Schnirelmann category: cat(X cross A)= cat(X). Then there is a strict inequality cat(X cross (A halfsmash B)) < cat (X) + cat(A halfsmash B) for every space B, provided the connectivity of A is ...
Berstein, Cornea, Donald Stanley, Ganea, Ganea, Jeffrey Strom, Mather, Norio Iwase, Stanley, Steenrod, Švarc   +10 more
core   +3 more sources

Towards a Relativistic KMS Condition [PDF]

, 1998
It is shown that, under quite general conditions, thermal correlation functions in relativistic quantum field theory have stronger analyticity properties in configuration space than those imposed by the KMS-condition.
Bratteli, Bros, Bros, Buchholz, Buchholz, Detlev Buchholz, Dixmier, Haag, Haag, Haag, Jacques Bros, Kato, Narnhofer, Ojima, Pusz, Sakai, Schlieder, Steinmann, Streater, Wightman   +19 more
core   +2 more sources

Cardiac conditions

Journal of Physiotherapy, 2023
This Editorial introduces another of Journal of Physiotherapy’s article collections.These are collections of papers on a particular topic, published in the Journal of Physiotherapy within the past decade and compiled to: facilitate access to important recent findings on the topic; highlight trends in research designs, methods, populations and ...
Freire, Ana Paula Coelho Figueira, Elkins, Mark R.   +1 more
openaire   +2 more sources

Vestas V90-3MW Wind Turbine Gearbox Health Assessment Using a Vibration-Based Condition Monitoring System

Shock and Vibration, 2016
Reliable monitoring for the early fault diagnosis of gearbox faults is of great concern for the wind industry. This paper presents a novel approach for health condition monitoring (CM) and fault diagnosis in wind turbine gearboxes using vibration ...
A. Romero, Y. Lage, S. Soua, B. Wang, T.-H. Gan   +4 more
doaj   +1 more source

A New Method of Identifying the Limit Condition of Injection Pump Wear in Self-Ignition Engines

Energies, 2020
The quality or reliability of diagnostics is understood as obtaining the most likely diagnosis, and finding possible causes leading to incorrect operation of the system. In real engine running conditions it is often very difficult.
Artur Bejger, Jan Bohdan Drzewieniecki
doaj   +1 more source