Results 141 to 150 of about 1,859,132 (364)

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

Continuously Tuning Strong Exciton–Photon Coupling via Molecular Orientation in Organic Microcavities

Advanced Optical Materials, EarlyView.
Molecular orientation in vapor‐deposited glassy organic thin films can be tuned with processing conditions, offering control over transition dipole moment (TDM) alignment. Strongly coupled optical microcavities containing thin films of 4,4′‐bis[(N‐carbazole)styryl]biphenyl (BSB‐Cz) are demonstrated with tunable molecular orientation via substrate ...
Yicheng Liu, Russell J. Holmes
wiley   +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

Slow Hot Carrier Cooling and Quasi‐Fermi Shift Dynamics in Few‐Layer α‐In2Se3 via Transient Absorption Spectroscopy

Advanced Optical Materials, EarlyView.
Ultrafast transient absorption spectroscopy reveals that α‐In2Se3, a non‐toxic and air‐stable 2D material, demonstrates slow hot carrier (HC) cooling (≈35 ps), comparable to perovskites. This prolonged cooling can enable efficient energy extraction. Comprehensive analysis captures key HC dynamics, such as quasi‐Fermi shifts, many‐body interactions, and
Sung Bok Seo, Sanghee Nah, Muhammad Sajjad, Sang Ho Suk, Sangwan Sim   +4 more
wiley   +1 more source

The Peculiar Horizontal Branch Morphology of the Galactic Globular Clusters NGC6388 and NGC6441 [PDF]

arXiv, 2007
I present multiband optical and UV Hubble Space Telescope photometry of the two Galactic globular clusters NGC6388 and NGC6441, in order to investigate the nature of the physical mechanism(s) responsible for the existence of an extended blue tail and of a slope in the horizontal branch.
arxiv  

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

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

Ultrafast Anisotropic Optical‐Gap Shift in Low‐Symmetry Layered GeS

Advanced Optical Materials, EarlyView.
This study reveals ultrafast, anisotropic optical‐gap shift dynamics in GeS. Optical excitation induces a significant redshift in the polarization along the zigzag direction, about three times greater than that along the perpendicular armchair direction.
Sung Bok Seo, Sanghee Nah, Muhammad Sajjad, Jianxiang Chen, Sang Ho Suk, Sangwan Sim   +5 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