Results 131 to 140 of about 309,791 (349)

Process simulation for 5-axis machining using generalized milling tool geometries [PDF]

, 2010
Multi-axis machining (especially 5-axis machining) is widely used in precision machining for automotive, aerospace and die-mold manufacturing. The goal in precision machining is to increase production while meeting high part quality needs which can be ...
Budak, Erhan, Ozkirimli, Omer Mehmet, Özkırımlı, Ömer Mehmet   +2 more
core  

Optoelectrical Devices for Neural Interfacing: Engineering Integration, Stability, and Multimodal Sensing

Advanced Healthcare Materials, EarlyView.
Implantable optoelectrical devices are an effective resource for the modulation and monitoring of neural activity with high spatiotemporal resolution. This review discusses current challenges faced by these devices and outlines future perspectives for the development of next‐generation neural interfaces targeting chronic, multisite, and multimodal ...
Stella Aslanoglou, Barbara Spagnolo, Antonio Balena, Massimo De Vittorio, Ferruccio Pisanello   +4 more
wiley   +1 more source

Optimization of 5-axis milling processes using process models [PDF]

, 2006
Productivity and part quality are extremely important for all machining operations, but particularly for 5-axis milling where the machine tool cost is relatively higher, and most parts have complex geometries and high quality requirements with tight ...
Budak, Erhan, Ozturk, Erdinc, Tunc, L. Taner, Tunç, L. Taner, Öztürk, Erdinç   +4 more
core  

Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture

Advanced Healthcare Materials, EarlyView.
This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus, Md Osman Goni Nayeem, Aastha Shah, Jason Hou, Shrihari Viswanath, Maya Eusebio, David Sadat, Anantha P. Chandrakasan, Tolga Ozmen, Canan Dagdeviren   +9 more
wiley   +1 more source

Beyond Presumptions: Toward Mechanistic Clarity in Metal‐Free Carbon Catalysts for Electrochemical H2O2 Production via Data Science

Advanced Materials, EarlyView.
Metal‐free carbon catalysts enable the sustainable synthesis of hydrogen peroxide via two‐electron oxygen reduction; however, active site complexity continues to hinder reliable interpretation. This review critiques correlation‐based approaches and highlights the importance of orthogonal experimental designs, standardized catalyst passports ...
Dayu Zhu, Hsi‐wen Wu, Xiao Wang, Jie Zhang   +3 more
wiley   +1 more source

Structural and Morphological Characterization of the Expanded Graphite Obtained by Ball Milling and HF Leaching

Iranian Journal of Materials Science and Engineering, 2021
In this research, expanded graphite (EG) was successfully fabricated using a simple ball milling process followed by hydrofluoric (HF, 10 wt. %) leaching. The effects of ball milling time (0-15 h) and leaching time (1-24 h) on the exfoliation of graphite
Saeid Karimi, Akbar Heidarpour, Samad Ghasemi   +2 more
doaj  

Alkaline Leaching: A Facile Surface Activation Strategy to Improve the Reactivity of Air Electrodes for Solid Oxide Fuel Cells

Advanced Materials, EarlyView.
This study shows that alkaline leaching of PrBa0.8Ca0.2Co2O5+δ under anodic bias selectively removes Ba and Ca, forming a cobalt‐rich and amorphous layer. The modified surface significantly boosts ORR activity, offering a simple and effective strategy to improve electrochemical device performance.
Yeongtaek Hong, Hyunseung Kim, Sang Won Lee, Yong Beom Kim, SungHyun Jeon, Sangwoo Kim, Hainan Sun, Jeongah Lee, Seongwoo Nam, Seungwoo Roh, Tae Ho Shin, WooChul Jung   +11 more
wiley   +1 more source

5 eksen frezelemede kuvvet ve şekil hatalarının modellenmesi [PDF]

, 2006
Özet: 5 eksen freze operasyonları havacılık, otomotiv ve kalıpçılık sektörlerinde karmaşık yüzeylerin talaşlı imalatında sıklıkla kullanılır. Bütün bu operasyonlarda boyut toleransları ve yüzey kalitesi çok önemlidir.
Budak, Erhan, Ozturk, Erdem, Öztürk, Erdem   +2 more
core  

Transport Properties and Exponential n-values of Fe/MgB2 Tapes With Various MgB2 Particle Sizes

, 2003
Fe/MgB2 tapes have been prepared starting with pre-reacted binary MgB2 powders. As shown by resistive and inductive measurements, the reduction of particle size to a few microns by ball milling has little influence on Bc2, while the superconducting ...
C. Senatore, D. Uglietti, Dhallé, Dubois, Eisterer, Flükiger, Flükiger, H.L. Suo, Jin, N. Clayton, Nagamatsu, P. Lezza, R. Flükiger, Serquis, Suo, V. Abächerli, Wang   +16 more
core   +2 more sources

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source