Results 71 to 80 of about 44,113 (284)

Near‐Field Electrospinning Micro‐Printhead Achieves Precise Control of Nanofiber Deposition

Advanced Engineering Materials, EarlyView.
A micro‐printhead for near‐field electrospinning enables reproducible deposition of polymer nanofibers with diameters below 50 nm. Systematic parameter studies uncover the mechanisms linking operating conditions to fiber morphology, paving the way for precise and low‐cost nanoscale 3D manufacturing.As a high‐resolution, cost‐effective, and rapid ...
Han Xu, Dario Mager, Jan G. Korvink
wiley   +1 more source

STUDI TENTANG PERGERAKAN TANAH BERDASARKAN POLA KECEPATAN TANAH MAKSIMUM (PEAK GROUND VELOCITY) AKIBAT GEMPA BUMI (STUDI KASUS KEJADIAN GEMPA PULAU SULAWESI TAHUN 2011-2014)

, 2015
: Study on Ground Movement Based on Peak Ground Velocity Pattern due to Earthquakes (Case Study of Sulawesi Island Earthquake in 2011-2014). Research has been carried out on ground movement patterns based on the peak ground velocity (peak ground velocity)
Arsyad, Muhammad, Sulistiawaty, Sulistiawaty, Sunarti, Sunarti   +2 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

GROUND VIBRATION DUE TO BLASTING IN DAM AND HYDROPOWER PROJECTS

Rudarsko-geološko-naftni Zbornik, 2020
In this study, the safe charge per delay (kg) of explosives and Peak Particle Velocity (PPV, mm/s) are recorded for 140 blast events at various distances which relates to the dam and hydropower projects of Karoun III, Masjed – Soleiman, and Siah – Bisheh
Hojjat Hosseinzadeh Gharehgheshlag, Aref Alipour   +1 more
doaj   +1 more source

Attenuation and velocity structure in the area of Pozzuoli-Solfatara (Campi Flegrei, Italy) for the estimate of local site response

, 2006
In the present work I infer the 1D shear-wave velocity model in the volcanic area of Pozzuoli-Solfatara using the dispersion properties of both Rayleigh waves generated by artificial explosions and microtremor.
Petrosino, S., Petrosino, Simona
core  

A model for predicting vertical component peak ground acceleration (PGA), peak ground velocity (PGV), and 5% damped pseudospectral acceleration (PSA) for Europe and the Middle East

, 2017
In this study, we present a ground-motion model for the vertical component of peak ground acceleration, peak ground velocity, and 5% damped pseudo acceleration response spectra at periods ranging from 0.01 to 4 s.
Kale, Ozkan, Ertuğrul, Zehra, Akkar, Sinan, Sandikkaya, Abdullah, Cagnan, Zehra, SANDIKKAYA, MUSTAFA ABDULLAH   +5 more
core   +1 more source

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

Advanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Onsite early prediction of peak amplitudes of ground motion using multi-scale STFT spectrogram

Earth, Planets and Space
Onsite earthquake early warning (EEW) techniques, relying on single-station seismic wave measurements, have demonstrated efficacy in mitigating damage caused by destructive earthquakes. Traditionally, these methods leverage diverse P-wave attributes from
Ting-Yu Hsu, Kuan-Lin Liu
doaj   +1 more source