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941.
942.
J. -H. Han 《Laser Physics》2011,21(4):700-703
Investigation has been performed for the characteristics of the fiber ring laser incorporating an intracavity unpumped Er-doped
fiber Sagnac loop for narrow linewidth continuous wave (CW) and gain-switched pulsed operation. The gain-switched pulse has
duty cycle of 4.4% with more than 113 mW in peak power at the reflective optical filter output and the laser was stable both
in output power and the peak wavelength. 相似文献
943.
Back Cover: Understanding the Origins of Nucleophilic Hydride Reactivity of a Sodium Hydride–Iodide Composite (Chem. Eur. J. 21/2016) 下载免费PDF全文
944.
945.
Wang Xiaobo Ma Yongpeng Li Zhenxing Han Guanglu Guan Xidong Fan Kaiqi 《Journal of Applied Spectroscopy》2022,89(3):586-592
Journal of Applied Spectroscopy - A multi-ion chromogenic sensor based on a terpyridine moiety was developed for the semiquantitative, visual, and sensitive speciation analysis of Fe2+ and Co2+... 相似文献
946.
947.
Yao-Bei Liu Hong-Mei Han Xue-Lei Wang 《The European Physical Journal C - Particles and Fields》2008,53(4):615-620
The left–right twin Higgs (LRTH) model predicts the existence of a pair of charged Higgs bosons φ±. In this paper, we study the production of the charged Higgs boson pair φ± at the international linear collider (ILC) and the CERN large hadron collider (LHC). The numerical results show that the
production rates are at the level of several tens fb at the ILC, and the process e+e-→φ+φ- can produce adequately distinct multi-jet final states. We also discuss the charged Higgs boson pair production via the process
qq̄→φ+φ- at the LHC and estimate in this case the production rates. We find that, as long as the charged Higgs bosons are not too
heavy, they can be abundantly produced at the LHC. The possible signatures of these new particles might be detected at the
ILC and LHC experiments.
PACS 12.60.Fr; 14.80.Mz; 14.65.Ha; 12.15.Lk 相似文献
948.
Influence of spacer layer thickness on the current-voltage characteristics of pseudomorphic AlAs/In0.53Ga0.47As/InAs resonant tunnelling diodes 下载免费PDF全文
This paper investigates the dependence of current voltage characteristics of AlAs/In0.53Ga0.47As/InAs resonant tunnelling diodes (RTDs) on spacer layer thickness. It finds that the peak and the valley current density J in the negative differential resistance (NDR) region depends strongly on the thickness of the spacer layer. The measured peak to valley current ratio of RTDs studied here is shown to improve while the current density through RTDs decreases with increasing spacer layer thickness below a critical value. 相似文献
949.
Magnetic domain structures of precipitation-hardened SmCo 2:17-type sintered magnets: Heat treatment effect 下载免费PDF全文
The typical magnetic domains of Sm(CObalFe0.25Cuo.07Zr0.02)7.4 magnets quenched through various heattreatment steps have been revealed by using magnetic force microscopy (MFM). For the specimens in which the nominal c-axis is perpendicular to the imaging plane, the domain configurations change from plate-like for the as-sintered magnet to corrugation and spike-like for the homogenized one, and then to a coarse and finally to a finer domain structure when isothermally aged at 830℃ and then annealed at 400℃. However, only plate-like domains can be detected on the surfaces with the nominal c-axis parallel to the imaging plane. The finer domain (so-called interaction domain) is a characteristic magnetic domain pattern of the SmCo 2:IT-type magnets with high coercivities. Domain walls in a zigzag shape are revealed by means of MFM in final bulk SraCo 2:17-type sintered magnets. 相似文献
950.
Carriers recombination processes in charge trapping memory cell by simulation 总被引:1,自引:0,他引:1 下载免费PDF全文
We have evaluated the effects of recombination processes in a charge storage layer, either between trapped electrons and trapped holes or between trapped carriers and free carriers, on charge trapping memory cell's performances by numerical simulation. Recombination is an indispensable mechanism in charge trapping memory. It helps charge convert process between negative and positive charges in the charge storage layer during charge trapping memory programming/erasing operation. It can affect the speed of programming and erasing operations. 相似文献