Results 91 to 100 of about 939,024 (297)

Rational production of veneer by IR-heating of green wood during peeling: Modeling experiments [PDF]

open access: yes, 2012
Heating green wood logs by infrared (IR) radiation during peeling for veneer production has been numerically simulated, focusing on the heating kinetics of a green wood cylinder rotating with a decreasing radius.
OULD AHMEDOU, Sid' Ahmed   +4 more
core  

Compressed sensing applied to modeshapes reconstruction [PDF]

open access: yes, 2011
Modal analysis classicaly used signals that respect the Shannon/Nyquist theory. Compressive sampling (or Compressed Sampling, CS) is a recent development in digital signal processing that offers the potential of high resolution capture of physical ...
Dimitri Bettebghor   +3 more
core   +1 more source

Asymmetry in Skipping Enhances Viability Against Control Input Noise

open access: yesAdvanced Robotics Research, EarlyView.
Quadruped animals use asymmetric galloping gaits at high speeds, yet the functional role of this asymmetry remains unclear. This study shows that left–right asymmetry in touchdown angles enhances robustness to control noise. Using a simple two‐legged locomotion model and viability theory, it demonstrates that asymmetric skipping substantially enlarges ...
Yuichi Ambe, Alvin So, Shinya Aoi
wiley   +1 more source

Modular, Textile‐Based Soft Robotic Grippers for Agricultural Produce Handling

open access: yesAdvanced Robotics Research, EarlyView.
This article introduces textile‐based pneumatic grippers that transform simple textiles into robust bending actuators. Detailed experiments uncover how cut geometry and fabric selection shape performance. Successful handling of fragile agricultural items showcases the potential of textile robotics for safe, scalable automation in food processing and ...
Zeyu Hou   +4 more
wiley   +1 more source

Callose in compression wood tracheids

open access: yesActa Societatis Botanicorum Poloniae, 2015
A study of 20 gymnospermous species has shown that in most of them callose occurs in the helical checks of the S2 layer of cell walls in the compression wood tracheids. It is suggested that owing to its swelling properties callose plays a part in the longitudinal extension of compression wood.
openaire   +3 more sources

Mechanical Properties of Compressed Wood in Accordance with the Compression Ratio

open access: yesMokuzai Gakkaishi, 2010
本研究では圧縮木材を構造用接合具として使用することを意図し,様々な圧縮率のスギの圧縮木材を用いて,各種力学特性値の密度との関係を調べた。非圧縮材料の物性値を元にした基準化を行うことで,材質向上の傾向を明らかにするとともに,圧密の過程に伴う細胞の変形モデルと比較することで,定性的な説明を行った。結果,縦圧縮・引張および曲げ特性値は密度に比例したが,せん断特性はLR面とLT面でそれぞれ異なった。LT面横圧縮特性は弾性率,強度ともに密度上昇率に対し約2乗に比例して増大した一方,LR方向のそれは早材細胞が完全に圧密細胞に変わる圧縮率程度まではあまり変化無く,それ以降に急激に上昇する結果が得られた。これらの傾向をハニカムセルの変形を考慮する事でモデル化し,元材料の力学特性値と圧縮率 ...
Kitamori, Akihisa   +3 more
openaire   +1 more source

Compressed Sensing with nonlinear observations and related non-linear optimisation problems

open access: yes, 2013
Non-convex constraints have recently proven a valuable tool in many optimisation problems. In particular sparsity constraints have had a significant impact on sampling theory, where they are used in Compressed Sensing and allow structured signals to be ...
Blumensath, Thomas
core   +1 more source

Intelligent Maintenance Review for Robots: Multimodal Information, Deep Diagnosis and Embodied Artificial Intelligence

open access: yesAdvanced Robotics Research, EarlyView.
This review maps the methods to monitor robots’ health by fusing vibration, sound, control signals, vision, force, and oil information with artificial intelligence. It identifies deep learning, transfer learning, digital twins, and physics‐informed models as key methodological pathways enabling earlier diagnosis, safer human–robot collaboration, and ...
Yuting Qiao   +6 more
wiley   +1 more source

Colour characteristics of pine wood affected by thermal compressing

open access: yesCiência Florestal, 2013
The goal of this study was to determine the effects of thermal modification and hot-pressing on the colour characteristics of pine wood as bio-resource.
Celil Atik, Zeki Candan, Oner Unsal
doaj  

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