Results 41 to 50 of about 47,067 (257)

Dialkyldithiophosphate Acids (HDDPs) as Effective Lubricants of Sol–Gel Titania Coatings in Technical Dry Friction Conditions [PDF]

, 2011
The goal of this study was the investigation of the effectiveness of dialkyldithiophosphate acids (HDDPs) films in improving the tribological properties of thin, sol– gel derived titania coatings.
AM Barnes, Aneta Kisielewska, Ch McFadden, CJ Oss Van, D Brovelli, E Travers, ES Yamaguchi, ES Yamaguchi, GC Smith, H Onoe, H Spikes, I Piwoński, I Piwoński, Ireneusz Piwoński, JF Graham, K Ito, M Textor, MA Nicholls, MM Yusuf, NE Gallopoulos, R Hofer, SM Hsu, X Marguerettaz, Y Chen, Y-R Li   +24 more
core   +1 more source

Pressure and pressure derivative analysis for asymmetry finite-conductivity fractured vertical wells

Revista Fuentes El Reventón Energético, 2017
Many researchers have developed equations to characterize hydraulic fractures assuming they are symmetrical with respect to the well, since symmetrical fractures are less likely to occur.
Alfredo GHISAYS RUIZ, Christian Eduardo Caicedo Franco, Freddy Humberto Escobar Macualo   +2 more
doaj   +1 more source

The Optimization of the Electrocoagulation of Palm Oil Mill Effluent with a Box-Behnken Design

International Journal of Technology, 2019
Unmanageable industrial wastewater will have an impact on the environment. One of the alternative wastewater treatment technologies is electrocoagulation. This study investigates the effects of voltage, time, and NaCl concentrations on wastewater through
Mirna Lubis, Dwinta Fujianti, Rita Zahara, Darmadi Darmadi   +3 more
doaj   +1 more source

Hydrogel‐Based Airway‐on‐Tube With Perfusable Endothelial Lumen and Outward Epithelialization

Advanced Materials, EarlyView.
A hydrogel‐based airway‐on‐tube platform featuring a perfusable endothelial lumen and outward epithelialization is presented. The system supports primary human bronchial epithelial and lung microvascular endothelial coculture under air‐liquid interface conditions.
Ali Doryab, Jack F. Murphy, Michael Bartolf‐Kopp, Jenny C‐C Hsin, Alice Chernaik, Frank McCaughan, Yan Yan Shery Huang, Tomasz Jungst, Jürgen Groll   +8 more
wiley   +1 more source

Local boron doping quantification in homoepitaxial diamond structures [PDF]

, 2010
The capability of transmission electronmicroscopy (TEM) using the high angle annular dark fieldmode (HAADF,also labelled Z-contrast) to quantify boron concentration, in the high doping range between 1019cm−3 and 1021cm−3, is demonstrated.
A.J. García, Abe, Anstis, Araújo, Bangert, D. Araújo, E. Bustarret, F. Jomard, Hytch, Ishizuka, Kirkland, Kirkland, Klein, Klie, Klie, Kohn, M.P. Alegre, M.P. Villar, Nellist, Nellist, P. Achatz, Pizarro, R. El Bouayadi, Sarigiannidou, Shiojiri, Shiojiri, Williams   +26 more
core   +4 more sources

3D‐Printed Arch‐Structured Tribolayer with Conducting Polymer Coating for Enhanced Triboelectric Energy Harvesting

Advanced Materials Interfaces, EarlyView.
PEDOT:PSS‐coated 3DP microstructures are introduced to realize TENGs with enhanced mechanical compliance and high electrical performance. Among the investigated geometries, arch‐shaped microstructures exhibit superior fatigue resistance due to their spring‐like behavior, enabling efficient stress distribution, stable contact evolution, and sustained ...
Mariam E. Alhosani, Bushara Fatma, Reem B. Irshaid, Kyriaki Katsikari, Maryam Aljaberi, Israr Ud Din, Seoyoung Kang, Young Pyo Jeon, Kamran A. Khan, Charalampos Pitsalidis   +9 more
wiley   +1 more source

A technique for adding range restrictions to generalized searching problems [PDF]

, 1996
In a generalized searching problem, a set $S$ of $n$ colored geometric objects has to be stored in a data structure, such that for any given query object $q$, the distinct colors of the objects of $S$ intersected by $q$ can be reported efficiently.
Gupta, P., Janardan, R., Smid, M.
core   +1 more source

Terahertz Magneto Optical Polarization Modulation Spectroscopy

, 2012
We report the development of new terahertz techniques for rapidly measuring the complex Faraday angle in systems with broken time-reversal symmetry using the cyclotron resonance of a GaAs two-dimensional electron gas in a magnetic field as a system for ...
Aguilar, Andrea G. Markelz, Andreas V. Stier, Bruce D. McCombe, Byrne, Cerne, Chase T. Ellis, Cheng, Chiu, Crassee, Deepu K. George, Grayson, Grischkowsky, Huant, Ikebe, Jenkins, John Černe, Kim, Kono, Mittleman, Morimoto, Morimoto, Piller, Piller, Planken, Schmadel, Spielman, Sumikura, Tse, Wu, Yatsugi   +30 more
core   +1 more source

Terahertz Chiral Metamaterials Enabling Broadband Polarization Conversion Using Polarization Guiding Effect

Advanced Materials Technologies, EarlyView.
A broadband terahertz polarization rotator consisting of twistingly stacked silicon–air metagratings is designed based on the polarization guiding effect and experimentally shown to achieve 90° linear polarization rotation for both TE and TM incidences.
Yun‐Seok Choi, Tae Gwan Park, Antoinette J. Taylor, Hou‐Tong Chen, Abul K. Azad   +4 more
wiley   +1 more source

No study is Ever Perfectly Flawless: Exploring Research Limitations in Theses and Dissertations of Iranian Higher Education Institutes

Iranian Journal of Information Processing & Management, 2020
Reporting research limitations in academic literature is very important for understanding and utilizing research findings. This study aims to assess the extent to which and how research limitations acknowledged in Persian theses and dissertations (TDs ...
Parviz Shahriari, Behrooz Rasuli
doaj