Results 141 to 150 of about 2,222,310 (369)

Diffusion in hot subdwarf progenitors from the common envelope channel

Open Astronomy, 2017
Diffusion of elements in the atmosphere of a star can drastically affect its surface composition, sometimes leading to unusual mixtures. These chemically peculiar stars can be identified fromthe presence of unusual lines in their spectra.
Byrne Conor M., Jeffery C. Simon, Tout Christopher A., Hu Haili   +3 more
doaj   +1 more source

The Impact of Rotation on the Evolution of Low-Mass Stars

, 2007
High precision photometry and spectroscopy of low-mass stars reveal a variety of properties standard stellar evolution cannot predict. Rotation, an essential ingredient of stellar evolution, is a step towards resolving the discrepancy between model ...
Christopher A. Tout, Daniel Brown, Guenter Houdek, Maurizio Salaris, Rebecca G. Martin, Richard J. Stancliffe   +5 more
core   +1 more source

Designing an Anionic Layer in Low‐Concentration Electrolytes to Promote In‐Plane Ion Diffusion for Dendrite‐Free Zinc‐Ion Batteries

Advanced Materials, EarlyView.
An optimization model for zinc anodes centered on anion traction in a low‐concentration electrolyte system is proposed. The fluoride‐ion enriched interfacial layer on the zinc anode surface enhances the concentration of Zn2+ in a lateral direction through electrostatic forces, thereby facilitating horizontal zinc plating.
Yiyang Zhang, Beibei Xu, Lingfei Zhao, Qi Luo, Ying Tao, Yaojie Lei, Wei‐Hong Lai, Hua‐Kun Liu, Shi‐Xue Dou, Yun‐Xiao Wang   +9 more
wiley   +1 more source

Characteristics analysis of flame propagation and its coupling effect with other parameters in LPG pipeline

Energy Science & Engineering
To study the flame propagating characteristic and its coupling effect with other parameters in the LPG pipeline, a typical pipeline model with two equal‐length branches perpendicular to each other is designed for experiment and simulation.
Haipu Bi, Wei Mao, Yujie Cao, Qingqing Zhang, Lei Tian, Kaimin Wang, Xiaolong Xie   +6 more
doaj   +1 more source

Design and first-round commissioning result of the SASE beamline at the Shanghai Soft X-ray FEL facility

Journal of Synchrotron Radiation
The Shanghai Soft X-ray Free-Electron Laser (SXFEL) is the first X-ray free-electron laser facility in China. The SASE beamline, which consists of a pink-beam branch and a mono-beam branch, is one of the two beamlines in the Phase-I construction.
Chaofan Xue, Zhi Guo, Haigang Liu, Jiahua Chen, Yajun Tong, Jiadong Fan, Huaidong Jiang, Zhi Liu, Ximing Zhang, Renzhong Tai   +9 more
doaj   +1 more source

Standalone Integrated Magnonic Devices

Advanced Materials, EarlyView.
A standalone (not requiring external bias magnetic field) and tunable magnonic device is reported with all‐electric input and output, fully integrated on silicon (total footprint of 100 × 150 µm) and 3–8 GHz frequency band. This is achieved by monolithic integration of a CoFeB conduit with RF antennas and an assembly of NiFe and SmCo micromagnets ...
M. Cocconcelli, F. Maspero, A. Micelli, A. Toniato, A. Del Giacco, N. Pellizzi, A. E. Plaza, A. Cattoni, M. Madami, R. Silvani, C. Adelmann, A. A. Hamadeh, P. Pirro, S. Tacchi, F. Ciubotaru, R. Bertacco   +15 more
wiley   +1 more source

Analysis on economic benefits of coalbed methane drilling technologies

Petroleum Exploration and Development, 2009
The coalbed methane (CBM) development activities in China are concentrated in the regions with low-permeability coal reservoirs. There are two kinds of drilling technologies: one is the conventional vertical well technology, the other is multi-branch ...
Luo Dongkun, Chu Wangtao, Wu Xiaodong, Li Weichao   +3 more
doaj  

Identification of Blue Horizontal-branch Stars Using Synthetic SkyMapper Colors from Gaia XP Spectra

The Astrophysical Journal Supplement Series
Blue horizontal-branch (BHB) stars are ideal tracers for mapping the structure of the Galactic stellar halo. Traditionally, BHB sample stars are built from large-scale spectroscopic surveys utilizing their spectral features; however, the resulting sample
Guozhen Hu, Yang Huang, Wenyuan Cui, Tao Wang, Kai Xiao, Ruifeng Shi, Jie Ju, Bowen Huang, Chunyan Li, Zhicun Liu, Xiaolong Wang, Changqing Luo   +11 more
doaj   +1 more source

Analysis of key elements affecting production and technical countermeasures to increase production of CBM fractured single horizontal wells: A case study of Zhengzhuang Block

Meitan kexue jishu
As the main technology of CBM development in the Qinshui CBM field, single-branch fractured horizontal wells have supported the breakthrough of 2 billion m3/year production of gas field.
Chen ZHANG, Meng HE, Yuhang XIAO, Zhong LIU, Sheng HAN, Xiuqin LU, Zihan WANG, Haoyu WU, Qianqian ZHANG   +8 more
doaj   +1 more source

Reconstruction of complex soft tissues defects of the cranial vault in neurooncological patients

Ukrainian Neurosurgical Journal, 2017
Objective. To improve the results of surgical treatment of neurooncological patients with complex defects of the soft tissues of the cranial vault using trapezius musculocutaneous flaps (TMF).Маterials and methods.
Мichail S. Kvasha, Аlexandr A. Zhernov, Vitalii Y. Molotkovets, Elena M. Kvasha, Oleksii V. Ukrainets, Andrii V. Dashchakovskyi, Stanislav S. Mosiychuk   +6 more
doaj   +1 more source