中国科学院机构知识库网格系统: 检索

Efficient SERS Response of Porous-ZnO-Covered Gold Nanoarray Chips to Trace Benzene-Volatile Organic Compounds 期刊论文 OAI收割
ACS APPLIED MATERIALS & INTERFACES, 2022
作者: Zhao, Zhipeng; Bao, Haoming; Zhao, Qian; Fu, Hao; Zhou, Le

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收藏 | 浏览/下载：49/0 | 提交时间：2022/12/22

gaseous benzene-VOCs porous zinc oxide covered gold nanoarray chips recoverable SERS response fast and sensitive SERS detection dual-enhancement mechanism

Ratiometric fluorescent sensor for shutter-speedy and ultra-sensitive monitoring of antibiotic utilizing multiple fluorescent devices 期刊论文 OAI收割
SENSORS AND ACTUATORS B-CHEMICAL, 2022, 卷号: 363
作者: Li, Lingfei; Lin, Dan; Xu, Shihao; Yang, Liang; Yu, Shaoming

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收藏 | 浏览/下载：29/0 | 提交时间：2022/12/23

Ultra-sensitive Super-fast In-situ visual detection Antibiotic Fluorescent

Constraint Loss for Rotated Object Detection in Remote Sensing Images 期刊论文 OAI收割
REMOTE SENSING, 2021, 卷号: 13, 期号: 21, 页码: 19
作者: Zhang, Luyang; Wang, Haitao; Wang, Lingfeng; Pan, Chunhong; Liu, Qiang

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收藏 | 浏览/下载：27/0 | 提交时间：2021/12/28

rotated object detection remote sensing image loss functions fast convergence

Insights into microbial community variability and functional genes of various Candidatus Scalindua-based anammox processes treating nitrogen-rich saline wastewater 期刊论文 OAI收割
SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 卷号: 766, 页码: -
作者: Ma, Haoran; Li, Jin; Dong, Huiyu; Qiang, Zhimin

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收藏 | 浏览/下载：8/0 | 提交时间：2021/12/23

Candidatus Scalindua Microbial community variability Nitrogen-rich saline wastewater Functional genes Fast detection

CNQ: Compressor-Based Non-uniform Quantization of Deep Neural NetworksInspec keywordsOther keywordsKey words 期刊论文 OAI收割
CHINESE JOURNAL OF ELECTRONICS, 2020, 卷号: 29, 期号: 6, 页码: 1126-1133
作者: Yuan, Yong; Chen, Chen; Hu, Xiyuan; Peng, Silong

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收藏 | 浏览/下载：79/0 | 提交时间：2021/03/08

entropy image classification learning (artificial intelligence) neural nets object detection optimisation quantisation (signal) network structure DNN low-bit quantization time-consuming training compressor-based fast nonuniform quantization method quantization model post-training quantization methods deep neural networks network quantization compressor-based nonuniform quantization CNQ Non-uniform quantization Knowledge distillation Unlabeled samples Network compression

The development and application of digital refueling mock-up for China initiative accelerator driven system 期刊论文 OAI收割
PROGRESS IN NUCLEAR ENERGY, 2020, 卷号: 127, 页码: 9
作者: Li Jin-Yang; Gu Long; He Zhi-Yong; Zhang You-Peng; Xu Hu-Shan

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收藏 | 浏览/下载：29/0 | 提交时间：2021/12/15

CiADS Immersive virtual reality Collision detection Refueling simulation Fast ray-casting method

No pulsed radio emission during a bursting phase of a Galactic magnetar 期刊论文 OAI收割
Nature, 2020, 卷号: 587, 页码: 63-65
作者: HXMT

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收藏 | 浏览/下载：44/0 | 提交时间：2022/02/08

Astrophysics - High Energy Astrophysical Phenomena Abstract: Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances^1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources^4-13, but no convincing evidence has been collected so far¹⁴. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft íray bursts¹⁵. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft íray/hard-X-ray flare^18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-íray repeater (SGR) bursts were detected in íray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.

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

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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).

A novel hardware-oriented ultra-high-speed object detection algorithm based on convolutional neural network 期刊论文 OAI收割
JOURNAL OF REAL-TIME IMAGE PROCESSING, 2019, 页码: 12
作者: Li, Jianquan; Long, Xianlei; Hu, Shenhua; Hu, Yiming; Gu, Qingyi

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收藏 | 浏览/下载：42/0 | 提交时间：2020/08/03

FPGA implementation High-speed vision Fast-object detection Convolutional neural network

Fast detection of fenthion on fruit and vegetable peel using dynamic surface-enhanced Raman spectroscopy and random forests with variable selection 期刊论文 OAI收割
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2018, 卷号: 200, 期号: 无, 页码: 20-25
作者: Weng, Shizhuang; Qiu, Mengqing; Dong, Ronglu; Wang, Fang; Huang, Linsheng

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收藏 | 浏览/下载：49/0 | 提交时间：2019/08/23

Dynamic surface-enhanced Raman spectroscopy Fenthion Random forests Fruit and vegetable peel Fast detection