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	Flame Spread Transition to Regression of Thick Fuel in Oxygen-Limited Concurrent Flow 期刊论文 OAI收割 FIRE TECHNOLOGY, 2023, 页码: 19 作者: Zhu F(朱凤); Huang, Xinyan; Chen, Xiao; Wang SF(王双峰) \| 收藏 \| 浏览/下载：22/0 \| 提交时间：2023/02/27 Fire spread Near-limit Fuel regression Flammability Flamelet Thick PMMA
	Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文 OAI收割 The Astrophysical Journal, 2020, 卷号: 901, 页码: L7 作者: HXMT \| 收藏 \| 浏览/下载：24/0 \| 提交时间：2022/02/08 Radio transient sources Magnetars Soft gamma-ray repeaters 2008 992 1471 Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Instrumentation and Methods for Astrophysics Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of A_J = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 10¹⁴ Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to R_NIR ? 0.025 (fluence index ?0.35).
	Plasmonic Interference Lithography for Low-Cost Fabrication of Dense Lines with Sub-50 nm Half-Pitch 期刊论文 OAI收割 ACS Applied Nano Materials, 2019, 卷号: 2, 期号: 1, 页码: 489-496 作者: Kong, Weijie; Luo, Yunfei; Zhao, Chengwei; Liu, Ling; Gao, Ping \| 收藏 \| 浏览/下载：34/0 \| 提交时间：2021/05/06 interference lithography surface plasmonic optical waveguide near-field diffraction limit super resolution nanomanufacturing subwavelength optics
	Near limit premixed flamelets in Hele-Shaw cells 期刊论文 OAI收割 PROCEEDINGS OF THE COMBUSTION INSTITUTE, 2017, 卷号: 36, 期号: 1, 页码: 1585-1593 作者: Chen XT; Lu ZB; Wang SF(王双峰) 收藏 \| 浏览/下载：33/0 \| 提交时间：2017/07/24 Premixed flame Flame cylinder Hele-Shaw cell Near limit Narrow channel
	Plasmonic Structures, Materials and Lenses for Optical Lithography beyond the Diffraction Limit: A Review 期刊论文 OAI收割 MICROMACHINES, 2016, 卷号: 7, 期号: 7 作者: Wang, Changtao; Zhang, Wei; Zhao, Zeyu; Wang, Yanqin; Gao, Ping 收藏 \| 浏览/下载：30/0 \| 提交时间：2016/11/15 surface plasmon polaritons bulk plasmon polaritons diffraction limit subwavelength optics near-field optics metamaterial super resolution nano optical lithography nanostructure fabrication
	Far-field focusing of laser beam based on digital image processing techniques (EI CONFERENCE) 会议论文 OAI收割 Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China 作者: Zhao S.; Tian Y.-Z.; Liu L.-S.; Guo J.; Zhang H.-Y. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 In order to lead the laser beam transmit in the atmosphere convergently an experiment of laser focus at the distance of 450m and 300m has been operated in the outdoor place. The actual manipulations are as follows: Firstly the laser was collimated by a beam expander then the near-parallel laser beam was transmitted with a Galileo telescope system and the distance between the concave lens and the convex lens can be tuned through a precise displacement platform so the focus of the system changed due to the tiny displacement of the concave lens. Secondly the average power of the laser spot can be measured using power meter the power is 47.67mW and the standard deviation is 0.67mW while the focal length is 450m. Thirdly the energy distribution was found through the laser beam analyzer. The spot images were saved using the beam analyzer then the saved image can be processed with Matlab software afterwards. The function named EDGE and Sobel operator was used in the pre-processing of the saved image then method of median filter was used in the course of image de-noising and 53H filter was adopted in the signal analysis. The diameter of laser spot was obtained by the method above the diameter is 5.56mm and the standard deviation is 0.24mm. The spot center excursion is 0.56mm it is 10.43% of the total diameter of the laser spot. At last the key factors of the energy dissipation in the focusing system can be summarized as follows: restriction of the diffraction limit attenuation in the atmosphere geometrical aberration of optical system and the diffraction limit and the geometrical aberration are significant in the three factors above so we can reduce the impact of the both factors during the design of optical system. The reliable referenced data of the system design can be acquired through the primary experiment research. 2010 SPIE.
	Low-Power Super-resolution Readout with Antimony Bismuth Alloy Film as Mask layer 期刊论文 OAI收割 chin. phys. lett., 2009, 卷号: 26, 期号: 2, 页码: 24214 Jiang Lai-Xin; Wu Yi-Qun; Wang Yang; Wei Jing-Song; Gan Fu-Xi 收藏 \| 浏览/下载：1803/198 \| 提交时间：2009/09/22 NEAR-FIELD STRUCTURE ONLY-MEMORY DISC OPTICAL DISK DIFFRACTION LIMIT SYSTEM