Results 111 to 120 of about 511,855 (348)

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process [PDF]

, 2021
Badreddine Saidi, Laurence Moreau, Abel Cherouat, Rachid Nasri   +3 more
openalex   +1 more source

Oral Dosed Organo‐Silica Nanoparticles Restore Glucose Homeostasis and β‐Cell Function in Diabetes Rats

Advanced Functional Materials, EarlyView.
An oral nanoplatform, MOP@T@D, which can maintain glucose homeostasis and restore islet β cells in diabetic rats is developed. It achieves efficient intestinal absorption and liver‐targeted delivery. The nanoparticle disintegrates only in response to hyperglycemia to release insulin on demand and provides antioxidant protection through selenoprotein ...
Chenxiao Chu, Mingli Wei, Che Bian, Xiaoshuang Bi, Yaxin Deng, Peifu Xiao, Jiansong Zhao, Yuying Wang, Haibing He, Jingxin Gou, Tian Yin, Xing Tang, Li Yang, Hongbo Zhang, Yu Zhang   +14 more
wiley   +1 more source

High- and Low-Mass Star Forming Regions from Hierarchical Gravitational Fragmentation. High local Star Formation Rates with Low Global Efficiencies

, 2009
We investigate the properties of "star forming regions" in a previously published numerical simulation of molecular cloud formation out of compressive motions in the warm neutral atomic interstellar medium, neglecting magnetic fields and stellar feedback.
A.-Katharina Jappsen, Ballesteros-Paredes, Ballesteros-Paredes, Ballesteros-Paredes, Ballesteros-Paredes, Beuther, Bigiel, Brunt, Burkert, Caselli, Elmegreen, Elmegreen, Elmegreen, Enrique Vázquez-Semadeni, Evans, Federrath, Federrath, Frisch, Galván-Madrid, Gilberto C. Gómez, Hartmann, Hartmann, Heitsch, Heitsch, Heitsch, Heitsch, Hennebelle, Heyer, Hillenbrand, Ikeda, Javier Ballesteros-Paredes, Jijina, Kirk, Klessen, Klessen, Klessen, Klessen, Klessen, Koyama, Krumholz, Krumholz, Krumholz, Kurtz, Larson, Lee, Li, Matzner, McKee, McKee, Ostriker, Palla, Ralf S. Klessen, Rosas-Guevara, Sandstrom, Tobin, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Vázquez-Semadeni, Whitworth   +61 more
core   +1 more source

Experimental Verification of Forming Characteristics Enhancement by Combined Variable Punch Speed/Blank Holder Force Process Path in Warm Deep Drawing of A5182 Aluminum Alloy

Metals
Warm deep drawing is an effective special deep drawing technique for improving the forming limits of difficult-to-form materials such as aluminum alloys, magnesium alloys, and stainless steels.
Shoichiro Yoshihara, Akinori Shibata, Ken-ichi Manabe   +2 more
doaj   +1 more source

Research on aluminum alloy sheet thermoplastic deformation behavior based upon warm bulging test

AIP Advances, 2016
The rate of fluid pressure variation is a crucial factor to indicate the forming speed and the pressure rate is applied to be one factor that can influence the deformation of material in warm sheet hydroforming.
Gaoshen Cai, Xiaojun Zhou, Lihui Lang, Sergei Alexandrov   +3 more
doaj   +1 more source

Formability studies of ASS 304 and evaluation of friction for Al in deep drawing setup at elevated temperatures using LS-DYNA

Journal of King Saud University: Engineering Sciences, 2014
Deep drawing is a sheet metal forming operation which involves conversion of flat thin sheet blanks drawn into desired cups. Forming of high strength sheet metal and low weight alloys under warm conditions is in great demand now-a-days and its ...
Lade Jayahari, P.V. Sasidhar, P. Prudvi Reddy, B. BaluNaik, A.K. Gupta, Swadesh Kumar Singh   +5 more
doaj   +1 more source

Simulation about Warm Forming Deep Hole in Sheet

International Journal of Control and Automation, 2016
The processing of forming deep hole in sheet is a kind of process using friction heat between drilling tool and workpiece to make workpiece in plastic deformation to machine hole. The process is a kind of green mechanical processing without chip. Studying green processing process in mechanical is becoming a development direction.
X.C. Xu, Z.R. Chen, X.C. Ma, F. Guo
openaire   +1 more source

4D Printing of Self‐Immolative Polymers

Advanced Functional Materials, EarlyView.
The integration of self‐immolative polymers (SIPs) into light‐based 3D printed structures is presented as a new “living” 4D printing strategy. By exploiting their metastability and stimuli‐responsiveness, SIP‐containing printed objects can undergo rapid and triggered degrowth under ambient conditions and subsequent regrowth through polymer ...
Johannes Markhart, Philipp Mainik, Pia S. Klee, Eva Blasco   +3 more
wiley   +1 more source

锥齿轮温挤压成形工艺研究

Jixie chuandong, 2010
Warm extrusion technology is a process technic of net shape or near net shape.It is used plasticity forming of mechinery parts for car,motorcycle industry gradually,because it has good fluid capability of metal,high forming precision,low cost and ...
于金伟
doaj