Results 1 to 10 of about 5,173,671 (208)

Real-Time Online Spectral Detection System for Food Quality Based on Cloud Computing(基于云计算的食品品质实时在线光谱检测系统实现) [PDF]

open access: yesShipin kexue jishu xuebao, 2023
In order to solve the problems of high cost of model maintenance, insufficient model scalability and poor sharing of spectral resources in spectral detection technology, and to improve the limitations of detection and analysis objects of dedicated ...
LIU Cuiling(刘翠玲)   +5 more
doaj   +1 more source

Establishment of Non-Destructive Discriminant Model for Eggs Freshness Grade Based on Fusion Technology of Image and Spectral Features of Hyperspectral(基于高光谱图像与光谱特征融合技术的鸡蛋新鲜度无损判别模型的建立) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
Egg freshness grade evaluation is an important technical indicator in process of egg quality inspection. Egg samples from different storage environment were prepared, the hyperspectral image information and spectral information of eggs were collected ...
LIU Cuiling(刘翠玲)   +7 more
doaj   +1 more source

地铁列车驾驶技术发展综述:从人工驾驶到智能无人驾驶

open access: yes智能科学与技术学报, 2022
基于国内外地铁列车驾驶技术的发展现状,提出并阐述了地铁列车驾驶技术发展的4个阶段为人工驾驶、自动驾驶、无人驾驶、智能无人驾驶。概括了我国无人驾驶地铁列车的建设情况,针对目前基于神经网络这类机器学习方法的列车控制方法可解释性差的弊端,引入了深度模糊系统的概念,提出了基于人机混合智能的地铁智能无人驾驶基本框图,为将处理紧急情况的专家经验、人工智能算法和无人驾驶系统结合起来,实现智能无人驾驶提供了一种具有前景的解决思路。
赖文柱   +4 more
doaj   +1 more source

农业生物多样性大数据平台建设研究和展望 [PDF]

open access: yes, 2019
农业生物多样性是指直接或间接用于粮食和农业的动物、植物和微生物的多样性和变异性,包括作物、家畜、林业和渔业等。它位于整个农业系统的底层,是农业生产信息化的重要内容,也是国家战略资源和国家安全的重要基础。国内外相关组织机构和项目积累了很多的资源和建设经验,但是仍然存在资源零散分布、缺乏顶层设计、元数据标准规范应用不足、平台之间的数据交互不够、数据的快速实时响应比较困难、高端农业智库及其资源平台建设薄弱等问题。为了更好地推动我国农业生物多样性大数据平台的研究和开发工作,本文着重从科学数据平台(基础数据平台 ...
王昉   +6 more
core   +2 more sources

Application of Migration Learning in Transfer of Oil Spectral Model(迁移学习在食用油光谱模型转移中的应用) [PDF]

open access: yesShipin kexue jishu xuebao, 2019
Models established by spectral data collected by different spectroscopy instruments have model failure problems, leading to the low utilization rate, which is not conducive to the development of the spectroscopy industry.
LIU Cuiling(刘翠玲)   +5 more
doaj   +1 more source

基于Bi-LSTM及贝叶斯似然比检验的GEO与LEO卫星组合频谱感知

open access: yesKongjian kexue xuebao, 2023
目前的频谱感知算法以模型驱动为主,其感知性能过于依赖预定的统计模型,这使得其在信道环境复杂的卫星通信场景中的部署变得困难。对LEO卫星过境期间的信噪比波动情况进行分析,结果显示信噪比的波动达到14 dB。针对该复杂场景提出了一种基于双向长短期记忆网络及贝叶斯似然比检验联合的频谱感知算法。该算法不需要任何主信号的先验知识,可自动从主信号中学习隐藏特征并做出决策。基于Neyman-Pearson准则,在神经网络输出端设计了一种基于阈值的检测方案,可方便地控制恒定的虚警概率。仿真结果表明,所提算法在信噪比为 ...
杨 凯, 胡 圣波, 张 欣
doaj   +1 more source

Study on Chicken Quality Classification Method Based on K-Means-RBF(基于K-means-RBF的鸡肉品质分类方法研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2018
The chicken is easy to get spoilage during the storage and transportation. The hyperspectral imaging technology with the maps and spectral combination features was applied in this study, which could extract the spectral characteristics, texture and color
XING Suxia(邢素霞)   +3 more
doaj   +1 more source

Design and Realization of Food Safety Monitoring and Pre-Control System Based on Multi-Source and Big Data(基于多源大数据食品安全监测预控系统的设计与实现) [PDF]

open access: yesShipin kexue jishu xuebao, 2018
The traditional food safety monitoring usually adopts the manual monitoring mode,which has the characteristics of low efficiency, poor timeliness, and incomplete data.
LIU Cuiling(刘翠玲)   +3 more
doaj   +1 more source

Study on Risk Assessment Method of Agricultural Product Quality and Safety(农产品质量安全风险评估方法探索) [PDF]

open access: yesShipin kexue jishu xuebao, 2016
The existing quality and safety risk assessment methods for agricultural products are mostly the single factor evaluation. The valuation methods of other fields could provide new ideas for agricultural product risk assessment.
LIU Cuiling(刘翠玲)   +2 more
doaj   +1 more source

Determination of Volatile Basic Nitrogen in Pork Based on TDLAS Technique(基于TDLAS技术判定猪肉挥发性盐基氮含量) [PDF]

open access: yesShipin kexue jishu xuebao, 2018
Total volatile basic nitrogen (TVB-N) content is an important indicator for pork freshness detection. In order to detect the concentration of hydrogen sulfide gas during the deterioration of pork, tunable diode laser absorption spectroscopy (TDLAS) was ...
ZHAO Guanghua(赵广华)   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy