Results 111 to 120 of about 127,012 (304)

Triangular Index Ratio as an Alternative Method to the Alpha Angle for Defining the Presence of Cam Morphology: A Prospective Cohort Study

Arthritis Care &Research, EarlyView.
Objective Cam morphology, which is a significant risk factor for hip osteoarthritis, is commonly quantified by the alpha angle (AA). This study aims to explore the potential of the triangular index ratio (TIR) to quantify cam morphology on anteroposterior radiographs by assessing the association between TIR‐defined cam morphology and the development of
Jinchi Tang, Fleur Boel, Michiel M. A. van Buuren, Noortje S. Riedstra, Myrthe A. van den Berg, Jos Runhaar, Sita Bierma‐Zeinstra, Rintje Agricola   +7 more
wiley   +1 more source

LABORATORY AND FIELD TESTING OF SEED SPACING UNIFORMITY FOR SUGARBEET PLANTERS

, 2000
Five planter configurations were evaluated for seed spacing uniformity at three field speeds using a seed location method in the field and a laboratory method involving an opto-electronic sensor system. Planter seed spacing uniformity was described using
Kachman, Stephen D, Panning, Jonathan W., Smith, John A., Kocher, Michael F.   +3 more
core  

Enhancing the number of modes in metasurfaced reverberation chambers for field uniformity improvement

, 2021
The use of metasurfaces to increase the number of modes, lower the operating frequency, and improve the field uniformity in reverberation chambers (RCs) is investigated in this paper.
Dong, Xiaohang, Li, Zhuo, Xu, Baijie, Xu, Qian, Song, Jiajia, Wang, Kuan, Gu, Changqing, Sun, Hengyi, Martín, Ferran,   +8 more
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Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Uniformity-based Magnetic Field and Improvement of Conversion Efficiency for Rotary Ultrasonic Machining Applications

961-970A giant magnetostrictive transducer is a highly integrated device that facilitates the conversion of magnetic energy into mechanical energy, enabling the generation of motion or force during actuation.
Chen, Yunshuai, Yang, Rui, Hao, Zhenxing, Hu, Xiaojing   +3 more
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

A comparative assessment of trickle and spray irrigation:  Science Report - SC040008/SR3, Environment Agency

, 2007
Recent research (Assessing optimum irrigation water use: additional agricultural and nonagricultural sectors SC040008/SR1) complements existing guidelines (W6- 056) for the Environment Agency to assess and set the ‘optimum’ or ‘reasonable’ irrigation ...
Rodriguez Diaz, J. A., Weatherhead, E. K., Knox, Jerry W.   +2 more
core  

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

Effects of inlet duct taper and air supply mode on flow field uniformity in cold air fermentation room

Shipin yu jixie
ObjectiveTo improve the uniformity of airflow in the cold air fermentation room.MethodsNumerical simulations were performed using Fluent software, with average velocity and velocity non-uniformity coefficient as evaluation indexes.
ZHANG Guorong, ZHANG Jiewei, JI Jiadong, FANG Yong, CHEN Qinghua, HU Shengxin   +5 more
doaj   +1 more source