Results 91 to 100 of about 935,449 (339)

Hopfield Neural Networks for Online Constrained Parameter Estimation With Time‐Varying Dynamics and Disturbances

International Journal of Adaptive Control and Signal Processing, EarlyView.
This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley   +1 more source

Comparison of Femoral Offset Measurement Accuracy between Three-Dimensional-CT and X-ray in Developmental Dysplasia of the Hip Patients and Normal People [PDF]

, 2020
Qing Han, Xinyu Xu, Aobo Zhang, Bingpeng Chen, Yanguo Qin, Jincheng Wang   +5 more
openalex   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

VLBI Astrometry of AGB Variables with VERA -- A Semiregular Variable S Crateris --

, 2008
We present a distance measurement for the semiregular variable S Crateris (S Crt) based on its annual parallax. With the unique dual beam system of the VLBI Exploration for Radio Astrometry (VERA) telescopes, we measured the absolute proper motion of a ...
Ando, Kazuma, Bushimata, Takeshi, Choi, Yoon Kyung, Hirota, Tomoya, Honma, Mareki, Imai, Hiroshi, Iwadate, Kenzaburo, Jike, Takaaki, Kameno, Seiji, Kameya, Osamu, Kamohara, Ryuichi, Kan-Ya, Yukitoshi, Kawaguchi, Noriyuki, Kijima, Masachika, Kim, Mi Kyoung, Kobayashi, Hideyuki, Kuji, Seisuke, Kurayama, Tomoharu, Maeda, Toshihisa, Manabe, Seiji, Maruyama, Kenta, Matsui, Makoto, Matsumoto, Naoko, Miyaji, Takeshi, Nagayama, Takumi, Nakagawa, Akiharu, Nakamura, Kayoko, Nyu, Daisuke, Oh, Chung Sik, Omodaka, Toshihiro, Oyama, Tomoaki, Pradel, Nicolas, Sakai, Satoshi, Sasao, Tetsuo, Sato, Katsuhisa, Sato, Mayumi, Shibata, Katsunori M., Suda, Hiroshi, Tamura, Yoshiaki, Tsushima, Miyuki, Ueda, Kousuke, Ueno, Yuji, Yamashita, Kazuyoshi   +42 more
core   +1 more source

Cephalometric Evaluation of Pharyngeal Airway Space among Different Skeletal Malocclusions in United Arab Emirates Residents: A Cross-Sectional Study

Pesquisa Brasileira em Odontopediatria e Clínica Integrada
Objective: To determine the relationship between skeletal malocclusion and upper pharyngeal airway space in the United Arab Emirates population using linear cephalometric measurements.
Jensyll Rodrigues, Ab Rani Samsudin, Ahmed Ismail, Saad Al Bayatti, Snigdha Pattanaik, Vinayak Kamath, Vellore Kannan Gopinath, Yazan Mahmoud, Shishir Ram Shetty   +8 more
doaj  

Comparison of Dimensional Accuracy between a Laser Scanner and a Laser Tracker with Handheld Scan in a Laboratory Setting

Metrology
The dimensional accuracy of a laser scanner has been extensively evaluated using various measurement methods and diverse reference standards. This study specifically focuses on two key considerations.
Alex Krummenauer, Douglas Bergamo, Roberto Serpa Soares, Victor Emmanuel de Oliveira Gomes, Vitor Camargo Nardelli   +4 more
doaj   +1 more source

Geometric Optimization and Mechanical Performance Enhancement of Auxetic Structures for High‐Impact Applications Through Fused Deposition Modeling

Advanced Engineering Materials, EarlyView.
This study explores the mechanical performance of three auxetic structures, identifying a re‐entrant‐star hybrid as the most effective for impact absorption. Finite element simulations and experiments demonstrate significant gains in energy absorption and flexural strength after geometric optimization. This study investigates the mechanical performance
Malik Hassan, Manjusri Misra, Alexander Bardelcik, Stefano Gregori, Amar K. Mohanty   +4 more
wiley   +1 more source

Comparison of Volumetric Analysis Methods for Machine Tools with Rotary Axes [PDF]

, 2009
Confidence in the ability of a production machine to meet manufacturing tolerances requires a full understanding of the accuracy of the machine. However, the definition of “the accuracy of the machine” is open to interpretation. Historically, this has
Fletcher, Simon, Longstaff, Andrew P., Myers, Alan, Poxton, Anthony   +3 more
core  

In Vitro Analysis of the Accuracy of Intraoral Scanning in Children

Pesquisa Brasileira em Odontopediatria e Clínica Integrada
Objective: To evaluate the accuracy of intraoral scanning in maxillary dental arches of children. Material and Methods: Twenty-five edentulous dental models (Group 1) and 25 dental models with complete deciduous dentition (Group 2) comprised the sample ...
Eloá Cristina Passucci Ambrosio, Aliny Bisaia, Thiago Cruvinel, Natalino Lourenço Neto, Thais Marchini Oliveira, Maria Aparecida Andrade Moreira Machado   +5 more
doaj  

Exploratory investigation of virtual lesions in gastrointestinal endoscopy using a novel phase‐shift method for three‐dimensional shape measurement

DEN Open
Accurate measurement of the size of lesions or distances between any two points during endoscopic examination of the gastrointestinal tract is difficult owing to the fisheye lens used in endoscopy.
Taku Sakamoto, Ichiro Oda, Takuma Okamura, Hourin Cho, Naoya Toyoshima, Satoru Nonaka, Haruhisa Suzuki, Tatsuya Nakamura, Daichi Watanabe, Keigo Matsuo, Kazunari Hanano, Tetsuhide Takeyama, Shigetaka Yoshinaga, Yutaka Saito   +13 more
doaj   +1 more source