Results 111 to 120 of about 33,116 (291)

Analytical calculation of collapse voltage of CMUT membrane [PDF]

, 2004
Because the collapse voltage determines the operating point of the capacitive micromachined ultrasonic transducer (CMUT), it is crucial to calculate and control this parameter. One approach uses parallel plate approximation, where a parallel plate motion
Khuri-Yakub, BT, Bayram, Barış, Nikoozadeh, A, Yaralioglu, GG   +3 more
core  

From Shear to Sound: Mechanics–Acoustics Mapping of TPMS Lattices

Advanced Engineering Materials, EarlyView.
Triply periodic minimal surface (TPMS) lattices are mapped across mechanical and acoustic performance, revealing that descriptors validated in compression fail under shear. First‐time comparison with trusses included. A transition from porous to resonance‐driven absorption emerges at 25% density.
Lucía Doyle, María Ángeles Navacerrada, Johan Christensen, Carlos González   +3 more
wiley   +1 more source

Determination of static voltage stability-margin of the power system prior to voltage collapse [PDF]

, 2011
YesVoltage instability problems in power system are an important issue that should be taken into consideration during the planning and operation stages of modern power system networks.
Jalboub, Mohamed K., Ihbal, Abdel-Baset M.I., Abd-Alhameed, Raed, Rajamani, Haile S.   +3 more
core  

Voltage collapse mechanism based on system circuit and its solution manifolds [PDF]

, 2001
The problem of voltage collapse in the power system occurs when the load parameter exceeds some critical value. The critical operation point is known as the nose point in P-V curve.
Liu, Y, Ni, Y, Jie Wu, Wu, J, Wu, FF, Yixin Ni, Yongqiang Liu, F.F. Wu   +7 more
core   +1 more source

Experimental Characterization of Mycelium‐Based Composites Under Multiple Loading Conditions

Advanced Engineering Materials, EarlyView.
This study examines the mechanical response of mycelium‐based composites under compression, shear, and tension using mechanical testing and imaging methods. The comparison between unpressed and hot‐pressed specimens shows that hot pressing is associated with higher compression and shear stiffnesses.
Shaghayegh Elahi, Kimiya Tajik, Harvey Shaw, Matti Isakov, Sami Pajunen, Lauri Rautkari   +5 more
wiley   +1 more source

Transmission network voltage stability assessment using a new line stability index [PDF]

هوش محاسباتی در مهندسی برق
Voltage stability assessment is one of the critical topics concerning the stability of power systems. With the increasing loading of transmission networks and its impact on downstream networks, the importance of studying this issue has gained attention ...
Seyed Eshagh Sadeghi, Asghar Akbari Foroud, Majid Shahabi   +2 more
doaj   +1 more source

A study on mechanism of voltage collapse based on the theory of transversality of equilibrium points [PDF]

, 2004
A power system will experience voltage collapse when a system load parameter is over a certain critical value. The critical operation point corresponding to voltage collapse is recognized as the system saddle-node bifurcation point, which is also the ...
Liu, Y, Ni, Y, Yan, Z, Wu, FF
core   +1 more source

Feasibility of Nitrogen as a Carrier Gas for Inconel Cold Spray in Hydropower Application

Advanced Engineering Materials, EarlyView.
N2, despite being nearly two orders of magnitude cheaper than He, is a feasible carrier gas for cold spray Inconel coatings in hydropower repair applications when higher gas temperature and pressure are used. Reducing powder size significantly improved cavitation resistance, while the addition of fine chromium carbide particles further enhanced erosion
Tianhao Wang, Mayur Pole, Tingkun Liu, Kenneth A. Ross, Christopher B. Smith   +4 more
wiley   +1 more source

Comparison of Triply Periodic Minimal Surface Energy Absorbers Under Uniaxial Compressive Loading

Advanced Engineering Materials, EarlyView.
This study investigates LCD 3D printed Triply Periodic Minimal Surface (TPMS) structures as mechanical energy absorbers. By comparing various base designs and layered combinations under uniaxial compression, it identifies that a Diamond‐Gyroid sandwich structure offers superior performance.
Sergej Grednev, Noah‐Lean Roschlaub, Anne Jung   +2 more
wiley   +1 more source

Distributed parameter-based voltage stability index for identification of critical lines and voltage stability margin in power system

Cogent Engineering, 2018
This paper proposes a distributed parameter-based voltage stability index (DPVSI) for assessment of voltage stability of the power system. Proposed index incorporates the effects of distributed parameters of transmission line to predict voltage collapse.
Pradeep Singh, Rajive Tiwari
doaj   +1 more source