Results 51 to 60 of about 253,700 (370)

Rationally designed Sb2S3/PDI composites with enhanced visible light photoactivity

Catalysis Communications, 2022
Constructing organic-inorganic semiconductor heterojunctions is an efficient way to inhibit the recombination of photogenerated charge carriers and enhance photocatalytic performance of semiconductor.
Jin-Ge Hao, Hui-Qi Chen, Lei Xie, Ze-Xiang Li, Jia-Lin Zhang, Wei-Ya Huang, Tao Deng, Kang-Qiang Lu, Kai Yang   +8 more
doaj  

Lightwave valleytronics in a monolayer of tungsten diselenide

Nature, 2018
As conventional electronics approaches its limits1, nanoscience has urgently sought methods of fast control of electrons at the fundamental quantum level2.
F. Langer, C. Schmid, S. Schlauderer, M. Gmitra, J. Fabian, P. Nagler, C. Schüller, T. Korn, P. G. Hawkins, J. Steiner, U. Huttner, S. Koch, M. Kira, R. Huber   +13 more
semanticscholar   +1 more source

Measurement of CT radiation beam width with a pencil ionization chamber and radiopaque mask

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose This study compares fan beam CT scanner radiation beam widths measured with a pencil ionization chamber‐radiopaque mask technique with commonly used film and computed radiography (CR) measurements. Methods For a given fan beam CT scanner x‐ray beam, the ionization chamber‐mask technique determines the radiation beam width by exposing a
Rani Al‐Senan, David M. Gauntt, Gary T. Barnes   +2 more
wiley   +1 more source

Effect of trace Y2O3 on microstructure and properties of WC−6Co cemented carbides with inhomogeneous structure

Fenmo yejin jishu
Inhomogeneous structure WC−6Co cemented carbides with the different Y2O3 additions (mass fraction) were prepared by low pressure sintering. The microstructure and properties of the cemented carbides were investigated by scanning electron microscope (SEM),
TANG Yanyuan, YANG Qiumin, XU Guozuan, WANG Hongyun, ZHONG Zhiqiang   +4 more
doaj   +1 more source

Influence of microstructure and applied force on the crack initiation and propagation of tungsten electrodes for spot welding

Nihon Kikai Gakkai ronbunshu, 2018
In recent years, the electrical wiring works of automobiles and home electronics have become highly complicated, and a spot welding is being used as the interconnecting joining method.
Akira KURUMADA, Takamichi ONO, Goroh ITOH, Shingo MUKAE   +3 more
doaj   +1 more source

Ductilisation of tungsten (W): Tungsten laminated composites

International Journal of Refractory Metals and Hard Materials, 2017
Here we elucidate the mechanisms of plastic deformation and fracture of tungsten laminated composites. Our results suggest that the mechanical response of the laminates is governed by the plastic deformation of the tungsten plies. In most cases, the impact of the interlayer is of secondary importance.
Reiser, J., Garrison, L., Greuner, H., Hoffmann, J., Weingärtner, T., Jäntsch, U., Klimenkov, M., Franke, P., Bonk, S., Bonnekoh, C., Sickinger, S., Baumgärtner, S., Bolich, D., Hoffmann, M., Ziegler, R., Konrad, J., Hohe, J., Hoffmann, A., Mrotzek, T., Seiss, M., Rieth, M., Möslang, A.   +21 more
openaire   +4 more sources

Stereotactic radiotherapy for metastatic brain tumors: A comparative analysis of dose distributions among VMAT, Helical TomoTherapy, CyberKnife, Gamma Knife, and ZAP‐X

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract This study evaluates various radiotherapy techniques for treating metastatic brain tumor (BT), focusing on non‐coplanar volumetric modulated arc radiotherapy (NC‐VMAT), coplanar VMAT (C‐VMAT), Helical TomoTherapy (HT), CyberKnife (CK), Gamma Knife (GK), and ZAP‐X.
Toshihiro Suzuki, Masahide Saito, Ryutaro Nomura, Hikaru Nemoto, Naoto Yanagisawa, Ryuma Sawada, Zennosuke Mochizuki, Naoki Sano, Hiroshi Onishi, Hiroshi Takahashi   +9 more
wiley   +1 more source

Readdressing nanocavity diffusion in tungsten

Frontiers in Nuclear Engineering, 2023
In nuclear fusion (ITER and the future DEMO), those components that face the plasma are exposed to high temperature and irradiation which, in the long term, modifies their thermal and mechanical properties and tritium retention.
Andrée De Backer, Andrée De Backer, Andrée De Backer, Abdelkader Souidi, Etienne A. Hodille, Emmanuel Autissier, Cécile Genevois, Farah Haddad, Antonin Della Noce, Christophe Domain, Christophe Domain, Charlotte S. Becquart, Charlotte S. Becquart, Marie-France Barthe   +13 more
doaj   +1 more source

Monte Carlo modeling of radiation dose from radiation therapy with superficial x‐rays

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Introduction Superficial x‐rays (50–100 kVp) are used for treating non‐melanoma skin cancer and intraoperative radiation therapy (IORT). At these energies, the photoelectric effect significantly increases absorbed dose to bone compared to soft tissue.
Reham Barghash, Tiffany W. Martin, Amber R. Prebble, Del Leary   +3 more
wiley   +1 more source

Determination of Tungsten Content in Tungsten Carbide and Waste Product by X-ray Fluorescence Spectrometry with Fusion Sample Preparation

Yankuang ceshi, 2015
Tungsten carbide is widely used in the production of cemented carbide materials and the content of tungsten in tungsten carbide has a significant impact on its performance and cargo accounts settlement.
YE Shu-ai, WANG Wei, PU Xu-li, CAI Ji-jie   +3 more
doaj   +1 more source