Na Xiao

Guizhou Normal University

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Minglie Hu

Tianjin University

Chen Xie

Shandong Special Equipment Inspection Institute

Jun Zhao

China Jiliang University

Jintao Fan

Tianjin University

François Courvoisier

Franche-Comté Électronique Mécanique Thermique et Optique - Sciences et Technologies

Haosen Shi

East China Normal University

Youjian Song

Tianjin University

Ruoyu Liao

China Academy of Engineering Physics

Zhibang Yang

Changsha University

Hong Qun Luo

Southwest University

Cooperative Institutions

Chinese Academy of Sciences

Tianjin University

University of Science and Technology Beijing

Southwest University

Chongqing University

Peking University

University of Electronic Science and Technology of China

Harbin Institute of Technology

King Abdullah University of Science and Technology

Tsinghua University

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Occurrence Characteristics and Risk Assessment of Microplastics in Different Land Conditions: Land Use Types, Land Restoration Years and Crop Types

Yanhua Wang Na Xiao Zhibao Dong Tianjie Shao Ruiyuan Wang

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10.2139/ssrn.4773131

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Statistical prediction mechanism for channel reservation applicable to satellite network

Systems engineering and electronics (2014)

Na Xiao

A novel channel reservation statistical prediction mechanism based on statistical analysis is proposed to solve the problem of performance deterioration of the random competition reservation mechanism when the load becomes heavy,which decreases the channel utilization of satellite network.The predication interval which the availability of slots for reservation(SR)in the next frame possibly belongs to,is calculated by uniformly minimum variance unbiased estimation and the Faulkenberry theory based on multi-availability division of SR.The precise predication of prospective availability of SR is obtained according to the transition probability of the Markov model and frequency estimation of SR availability appearance times in history information.User terminals adjust their transmitting probability of reservation requests according to the availability predication of SR in the next frame.The results of theoretical analysis and simulation both indicate that the performance of applicability and availability of the novel mechanism is good,while the predication accuracy has been improved obviously.The collision probability of reservation requests has been decreased and the channel utilization has been enhanced.

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Modelling and Simulation of a Spliced Intelligent Medicine Box

2022 11th International Conference of Information and Communication Technology (ICTech)) (2022)

Tianlei Wang Jing Zhou Weilin Liang Na Xiao Ye Li

In order to solve the problems of difficult medication monitoring and low dispensing efficiency in geriatric homes, this paper designs an intelligent spliced medicine box. The medicine box adopts STM32F407Z as the main control chip, uses the motor to control the rotation of the medicine box to as-sist patients to take out medicine, and has a voice to remind patients to take medicine in time. At the same time, the identification technology is utilized to avoid the elderly taking the wrong medicine. An application program is designed to realize the function of remote monitoring. In addition, the medicine box can be spliced together one by one to form a set of medicine box array, which is convenient for unified dispensing. And the dispensing strategy is optimized, which greatly improves the dispensing efficiency of the nursing homes for the elderly. Finally, intelligent management of medication reminder, medication remote monitoring and rapid dispensing is realized, which has certain practical value in the market.

Identification

10.1109/ictech55460.2022.00090

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Ratiometric fluorescence method for malachite green detection based on dual-emission BSA-protected gold nanoclusters

Sensors and Actuators B Chemical (2018)

Yan Jun Ju Na Li Shi Gang Liu Lei Han Na Xiao

Nanoclusters

Malachite green

Bovine serum albumin

10.1016/j.snb.2018.08.052

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High-Power, Widely-Tunable Femtosecond Cylindrical Vector Beam Optical Parametric Oscillator

Conference on Lasers and Electro-Optics (2019)

Jun Zhao Jintao Fan Na Xiao Youjian Song Minglie Hu

We propose a cylindrical vector beam optical parametric oscillator, which is capable of delivering on demand vector beam tunable across 1405~1601 nm directly, with a maximum power of 614 mW at 1505 nm.

Parametric oscillator

10.1364/cleo_si.2019.sth4e.1

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Where Are All the Black Women? a Look Inside the Misrepresentation and Underrepresentation of Black Women in Modern Marketing Campaigns

ACR North American Advances (2015)

Alexandria Clark Na Xiao

Misrepresentation

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Research Progress of Wild Ornamental Plant Resources and Landscape Application

Anhui nongye kexue (2015)

Na Xiao

Wild ornamental plants are the important part of plant germ plasm resources,with the development of human settlement environment science,the application of wild ornamental plants in the garden has been increasingly valued,related research literatures are also gradually increase.The status,survey method and the way to further evaluation of wild ornamental plants were summarized.The key provinces,key areas and key families and genus were investigated,AHP method and psychophysical method were applied to evaluate the ornamental values.According to research status of wild ornamental plants and landscape application,the prospect was analyzed,and problems in wild ornamental plant resource study were proposed.

Ornamental plant

Germ plasm

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High-power femtosecond cylindrical vector beam optical parametric oscillator

Optics Express (2019)

Jun Zhao Jintao Fan Ruoyu Liao Na Xiao Minglie Hu

We report on high-power femtosecond cylindrical vector beam (CVB) generation from a Gaussian-pumped optical parametric oscillator (OPO). By introducing a half waveplate and a vortex half-wave plate of m = 1 to realize intracavity polarization modulation to the resonant Gaussian signal, the OPO could deliver broadband signal beam in CVB profile, i.e., radially and azimuthally polarized beam profile. The central wavelength of the generated CVB signals can be tuned continuously from 1405 to 1601 nm, while the corresponding pulse durations are all around 150 fs. A maximum average output power of 614 mW at 1505 nm is obtained. Moreover, our OPO cavity design can be extended to generate high order CVB by simply changing the vortex half-wave plate with different orders. Such a high-power CVB OPO configuration has the advantages of flexible control and wide tuning range, making it a practical tool for applications in super-resolution imaging, optical communication and quantum correlations.

Signal beam

Gaussian beam

Waveplate

10.1364/oe.27.033080

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猪星状病毒4型SYBR Green I荧光定量RT-PCR检测方法的建立

陈少杰 Shaojie Chen 刘立辉 Liu Lihui 吴志勇

为建立一种快速检测猪星状病毒4型（PAstV4）的SYBR Green Ⅰ荧光定量RT-PCR检测方法，根据已知的猪星状病毒4型序列的ORF1a基因设计了特异性引物，并将扩增片段克隆到pMD19-T载体上；将构建的重组质粒作为标准品建立SYBR Green Ⅰ荧光定量RT-PCR检测方法，并对建立方法的灵敏性、特异性及重复性进行验证。结果显示，建立的SYBR Green Ⅰ荧光定量PCR方法最低检测量为50.3拷贝·μL-1，其灵敏度是普通PCR的100倍；与CSFV、PRRSV、PRV、PEDV、PDCoV无交叉反应，特异性较好；建立的标准曲线呈良好的线性关系，相关系数R2=1.00。应用该方法检测了2018-2019年收集的43份临床样品，阳性率为18.6%。本研究为猪星状病毒4型的临床检测建立了一种快速、灵敏、特异性强的方法。

SYBR Green I

10.11843/j.issn.0366-6964.2020.02.023

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The miniaturization of high-power time-domain antenna

IEEE International Conference on Applied Superconductivity and Electromagnetic Devices (2013)

Ning Yan You Zhi Cai Xing Qun Qi Na Xiao Hong Yang

An opposed slot antenna with small dimensions of 220 mm by 250 mm is designed by a novel method of resistive loading to acquire high radiation power and it is fed by a bipolar pulse 1 ns peak-peak duration. There are fewer multiple reflections from different parts of the antenna in results that the duration of the radiation waveform's trailing is only 1.2 ns and the amplitude of which is 0.06 V/m while the maximum amplitude of the radiation waveform is nearly 2.4 V/m. The antenna with resistor loaded has good fidelity and better directionality.

Resistive touchscreen

10.1109/asemd.2013.6780737

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