Results 61 to 70 of about 60,091 (261)

Profile Grinding of High-Speed Steel using Ultrafine-Crystalline cBN Wheels

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
This paper deals with the grinding characteristics of newly developed ultrafine-crystalline cBN (cBN-U) abrasive grains in creep feed profile grinding of high-speed steels.
Yoshio ICHIDA
doaj   +1 more source

On the Effect of Creep on Local Lattice Orientation in Single‐Crystal Ni‐Based Superalloy Microstructures

Advanced Engineering Materials, EarlyView.
During creep of a single‐crystal Ni‐based superalloy, the overall crystal orientation is observed to remain constant while the microstructure evolves. Despite the lack of macroscopic rotation, small (<1°) rotations are observed on the submicron size scale and are accommodated by counteracting rotations over the scale of several micrometers.
E. J. Payton, E. B. Dursun, G. Eggeler, L. Agudo Jácome   +3 more
wiley   +1 more source

Prehistoric Grinding Tools as Metaphorical Traces of the Past

Current Swedish Archaeology, 1998
The predominant interpretation of reciprocating grinding tools is generally couched in terms of low archaeological value, anonymity, simplicity, functionality and daily life of women.
Cecilia Lidström Holmberg
doaj   +1 more source

An Estimation of Grinding Wheel Setting Error in Helical Gear Processing by Form Grinding.

TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C, 1997
In the processing of gears by the form grinding method, the accuracy of the gear tooth profile is easily influenced by setting errors of grinding wheels. When the values of the coordinates and slope of the tangent at points on the cutting edge of a grinding wheel are given, the transmission of setting errors from a gridning wheel to a work is denoted ...
KOBAYASHI, Youichi, NISHIDA, Noriteru, OUGIYA, Yasuhiko, NAGATA, Hiroshi   +3 more
openaire   +1 more source

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Laser‐Induced Graphene from Waste Almond Shells

Advanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova, Anna Chiara Bressi, Marina Galliani, Attilio Marino, Gianni Ciofani, Eduardo Machado‐Charry, Hilda Gomez Bernal, Alessandra Francini, Luca Sebastiani, Francesco Greco   +9 more
wiley   +1 more source

Forming Grinding Wheel Profile Modification of Cycloidal Gear of Robot RV Reducer

Jixie chuandong, 2016
According to the principle of forming principle and modeling method of the cycloidal gear tooth profile,the mathematical model of the form grinding is established and the calculation formulas for axial section coordinate points of the grinding wheel are ...
Deng Xiaozhong, Zhang Yanzhen, Li Tianxing, Su Jianxin   +3 more
doaj  

Three‐Dimensional Biomimetic Aerogel Conduits with Electro‐Ionic‐Immune Coupling Reverse the Pathological Cascade of Spinal Cord Injury

Advanced Functional Materials, EarlyView.
A biomimetic aerogel conduit was engineered from a nanofiber of gelatin/poly(l‐lactic acid) doped with polypyrrole nanoparticles, integrated with tannic acid and Mg2+. This “electro‐ionic‐immune” strategy mimicked spinal cord properties, reduced calcium overload, inflammation, oxidative damage, promoted neural stem cell differentiation, suppressed ...
Qingxiang Liu, Xin Yu, Jingtong Li, Chunyang Zheng, Yukang Zhang, Mingyu Jia, Tan Tian, Weiwei Zheng, Pinghui Zhou, Yingji Mao   +9 more
wiley   +1 more source

Combined Machining Principle of Milling and Form Grinding of Special Screw Rod

Jixie chuandong, 2016
Aiming at the problem of poor quality of the special screw rod surface,a combined machining method of milling and form grinding based on non-instantaneous pole envelop method is proposed. Firstly,the kinematic relationship between the disk milling cutter
Zhang Huifang, Yang Guijuan
doaj  

A Novel Modified Petroresin Particle (MPRP) With Enhanced Oil–Water Selectivity for Cold Production in Heavy Oil Reservoirs

Advanced Functional Materials, EarlyView.
A novel oil–water selective conformance control agent, MPRP, is prepared via hydrophilic grafting and mechanical granulation. MPRP uniformly disperses in water, cohesively expands upon aging, and readily dissolves in the oil phase. During conformance control, it selectively aggregates in water channeling pathways to form effective plugs without ...
Guang Zhao, Dongfang Lv, Chang Liu, Changxu Wu, Yifei Liu, Caili Dai, Huazhou Li   +6 more
wiley   +1 more source