Results 41 to 50 of about 46,051 (258)

Linked Ball Bar for Flexible Motion Error Measurement for Machine Tools

International Journal of Automation Technology, 2017
A measuring instrument, Linked Ball Bar (LBB), is developed to measure machine tool motion errors quickly, flexibly, and robustly. The LBB employs the concept of double ball bar (DBB) and measures the distance between two balls attached to the spindle and table.
Daisuke Kono, Fumiya Sakamoto, Iwao Yamaji   +2 more
openaire   +1 more source

Development and Error Analysis of 3D Laser Tracking Ball Bar [PDF]

, 2020
As a high-precision measuring instrument, laser tracker is widely used in the field of geometric error detection of CNC machine tools. However, the employment of this laser tracker will lead to high cost as well as low measurement accuracy caused by the angle error.
Ying-zhi Zhang, Gong-chang Ren, Hai-tao Li   +2 more
openaire   +1 more source

Optimizing NiMo Electrocatalyst Coatings for Hydrogen Evolution in Alkaline Electrolysis With The Machine Learning‐Guided Autonomous Platform CatBot

Advanced Functional Materials, EarlyView.
This work presents a closed‐loop optimization workflow integrating CatBot, an automated synthesis and testing system, to discover NiMo hydrogen‐evolution catalysts. CatBot synthesised and evaluated 228 unique samples, identifying the best performing catalysts for transfer to nickel‐foam electrodes. The best candidate is highly active, reaching 1 Acm−2${
Paolo Vincenzo Freiesleben de Blasio, Jonas Elsborg, Elif Coşkun, Andreas Burger, Pradipkumar Manubhai Leuaa, Thu Pham Anh Phan, Jin Hyun Chang, Christodoulos Chatzichristodoulou   +7 more
wiley   +1 more source

An in vitro comparative study to evaluate the retention of different attachment systems used in implant-retained overdentures

The Journal of Indian Prosthodontic Society, 2016
Aim: The aim of this in vitro study was to compare the change in the retentive force and removal torque of three attachment systems during simulation of insertion-removal cycles.
Tejomaya Shastry, N M Anupama, Shilpa Shetty, M Nalinakshamma   +3 more
doaj   +1 more source

Complications associated with the ball, bar and Locator attachments for implant-supported overdentures

Medicina Oral Patología Oral y Cirugia Bucal, 2011
The purpose of this clinical study was to evaluate the complications associated with the different attachments used in implant-supported overdentures, including prosthetic problems and implant failures. A comparison of ball, bar and Locator (Zest Anchors, Inc, homepage, Escondido, CA, USA) attachments, in completely edentulous patients with two, three ...
Sirmahan, Cakarer, Taylan, Can, Mehmet, Yaltirik, Cengizhan, Keskin   +3 more
openaire   +2 more sources

Molecularly Dissipative Liquid Crystal Elastomer Foams for Impact and Vibration Attenuation

Advanced Functional Materials, EarlyView.
Liquid crystal elastomer foams integrate cellular deformation with mesogen reorientation to create a dual‐scale energy dissipation mechanism. Progressive pore collapse absorbs mechanical loads, while stress‐induced mesogen reorientation provides additional damping, resulting in reduced impact transmission and broadband suppression of vibrational ...
Subi Choi, Sangyeop Lee, In‐sun Jeong, Kyungjun Song, Eugene M. Terentjev, Suk‐kyun Ahn   +5 more
wiley   +1 more source

Emergence of a Hexagonal Fe2S2 Single Layer Without a Bulk Counterpart via Phase Transformation

Advanced Functional Materials, EarlyView.
Upon annealing, single‐layer Mackinawite iron sulfide transforms into a previously unknown hexagonal Fe2S2${\rm Fe}_2{\rm S}_2$ phase with β$\beta$‐CuI structure. STM, LEED, and first‐principles calculations identify the structure and show that electronic correlations and magnetic order are important for its stability.
Affan Safeer, Wejdan Beida, Felix Oberbauer, Nicolae Atodiresei, Gustav Bihlmayer, Max Wolfertz, Chiara Schlichte, Wouter Jolie, Stefan Blügel, Jeison Fischer, Thomas Michely   +10 more
wiley   +1 more source

Retracted: Stress Distribution in Three-Implant- Retained Mandibular Overdentures Using Finite Element Analysis

Journal of Islamic Dental Association of Iran, 2015
Background and Aim: Demand for implant-supported overdentures has increased due to the problems of conventional dentures. Despite the high success rate of implants, implant failure remains a major challenge.
Asadollah Ahmadzadeh, Farnoosh Golmohammadi, Najmeh Mousavi, Saeid Epakchi   +3 more
doaj  

Programming Neuromorphic Plasticity Through Ionic and Electronic Coupling in Organic Electrochemical Transistors

Advanced Functional Materials, EarlyView.
Neuromorphic plasticity in OECTs is governed by the post‐stimulus evolution of coupled ionic and electronic states. Semiconductor chemistry and morphology, electrolyte composition and interfaces, and device architecture regulate ion injection, transport, confinement, and release, shifting responses from rapidly relaxing STP to metastable memory and ...
Inho Lee, Hyoik Jang, Ji Hwan Kim, Jonghyun Won, Namhee Kim, Wonseok Shin, Giwon Lee, Eunho Lee, Daegun Kim, Sungjun Park   +9 more
wiley   +1 more source

Comparative Analysis of Retention in Different Attachment Systems for Implant-Supported Overdentures

Journal of Pharmacy and Bioallied Sciences
Background: Implant-retained overdentures have become a popular choice in prosthodontics, providing enhanced stability and comfort for edentulous patients. The retention and stability of these overdentures largely depend on the attachment system used.
Ali Alenezi, Adham A. Niyazi, Nabeel Munshi, Arwa U. Alsaggaf, Thamer A. Alghalib, Wayel M. Huraib, Muhannad S. Alharbi   +6 more
doaj   +1 more source