期刊文献+
共找到32篇文章
< 1 2 >
每页显示 20 50 100
Electrocardiogram Signal Denoising Using Optimized Adaptive Hybrid Filter with Empirical Wavelet Transform
1
作者 BALASUBRAMANIAN S NARUKA Mahaveer Singh TEWARI Gaurav 《Journal of Shanghai Jiaotong university(Science)》 2025年第1期66-80,共15页
Cardiovascular diseases are the world’s leading cause of death;therefore cardiac health of the human heart has been a fascinating topic for decades.The electrocardiogram(ECG)signal is a comprehensive non-invasive met... Cardiovascular diseases are the world’s leading cause of death;therefore cardiac health of the human heart has been a fascinating topic for decades.The electrocardiogram(ECG)signal is a comprehensive non-invasive method for determining cardiac health.Various health practitioners use the ECG signal to ascertain critical information about the human heart.In this article,swarm intelligence approaches are used in the biomedical signal processing sector to enhance adaptive hybrid filters and empirical wavelet transforms(EWTs).At first,the white Gaussian noise is added to the input ECG signal and then applied to the EWT.The ECG signals are denoised by the proposed adaptive hybrid filter.The honey badge optimization(HBO)algorithm is utilized to optimize the EWT window function and adaptive hybrid filter weight parameters.The proposed approach is simulated by MATLAB 2018a using the MIT-BIH dataset with white Gaussian,electromyogram and electrode motion artifact noises.A comparison of the HBO approach with recursive least square-based adaptive filter,multichannel least means square,and discrete wavelet transform methods has been done in order to show the efficiency of the proposed adaptive hybrid filter.The experimental results show that the HBO approach supported by EWT and adaptive hybrid filter can be employed efficiently for cardiovascular signal denoising. 展开更多
关键词 electrocardiogram(ECG)signal denoising empirical wavelet transform(EWT) honey badge optimization(HBO) adaptive hybrid filter window function
原文传递
Rank Badges of Official Costumes ofMing and Qing Dynasties from the Perspective of Social Semiotics
2
作者 Yichen Zhu 《Language and Semiotic Studies》 2021年第2期121-143,共23页
The official dress systems of Ming and Qing Dynasties were formulated by the rulers of those feudal societies to maintain their ruling status.As well as being a functional indication of the type and power of officials... The official dress systems of Ming and Qing Dynasties were formulated by the rulers of those feudal societies to maintain their ruling status.As well as being a functional indication of the type and power of officials,the rank badge,Buzi or Bufu(补子,补服),on official clothes indirectly declared the elegant and brave characteristics of civil and military officers,and also reflected the philosophy of the unity and harmony between human and nature.Informed by social semiotics theory,the Buzi patterns embody the culture and arts of ancient Chinese clothing,producing novel meaning within corresponding social contexts,which can be inherited and developed in today's society.Moreover,the wearing of official unified clothes and rank badges by officials and civil servants should be encouraged since those persons often serve as a role model and are subject to public's scrutiny.Thus ancient Chinese culture and arts can flourish,a good social order and law be maintained,and a harmonious and civilized society built. 展开更多
关键词 social semiotics ojficial costumes of Ming and Qing Dynasties Buzi(rank badge) clothing culture INHERITANCE social governance
原文传递
高效液相色谱-荧光检测法测定罐头食品中的双酚A、BADGE及其衍生物 被引量:26
3
作者 葛宇 印杰 +5 位作者 曹程明 叶天 宁啸骏 虞成华 熊薇 忻元庆 《食品与发酵工业》 CAS CSCD 北大核心 2009年第9期119-123,共5页
研究建立了一种罐头食品中的双酚A、BADGE及其衍生物含量的高效液相色谱-荧光检测法。前处理包括乙腈萃取,超声,旋转蒸发,压滤等步骤。样品经ZORBAX SB-C18柱(4.6 mm×250 mm)分离,以0.02 mol/L乙酸铵溶液和甲醇为流动相,在激发波长... 研究建立了一种罐头食品中的双酚A、BADGE及其衍生物含量的高效液相色谱-荧光检测法。前处理包括乙腈萃取,超声,旋转蒸发,压滤等步骤。样品经ZORBAX SB-C18柱(4.6 mm×250 mm)分离,以0.02 mol/L乙酸铵溶液和甲醇为流动相,在激发波长225 nm、发射波长305 nm下进行荧光检测。检出限达到0.04-0.1μg/mL。6次重复实验的相对标准偏差分别为BADGE.2H2O 0.60%、BPA 0.83%、BADGE.H2O 1.02%、BADGE.H2O.HCl 0.66%、BADGE 0.59%、BADGE.HCl 0.37%、BADGE.2HCl 1.81%,方法回收率分别为BADGE.2H2O 93%-105%、BPA97%-104%、BADGE.H2O 85%-101%、BADGE.H2O.HCl 92%-102%、BADGE 96%-99%、BADGE.HCl 95%-106%、BADGE.2HCl 87%-111%,满足痕量分析要求。该方法简便快速,灵敏可靠,适用于罐头食品中双酚A和6种BADGE衍生物含量的同时检测。 展开更多
关键词 高效液相色谱-荧光法 罐头食品 BADGE及其衍生物 检测
在线阅读 下载PDF
超高效液相色谱-串联质谱法同时测定鱼、肉类罐头食品中的BADGE、NOGE及其衍生物 被引量:3
4
作者 林赛君 陈思 +1 位作者 薛鸣 张虹 《食品与发酵工业》 CAS CSCD 北大核心 2011年第8期155-160,共6页
建立了一种罐头食品中的BADGE(bisphenol A diglycidyl ether,双酚A-二环氧甘油醚)、NOGE(novolacglycidyl ether,酚醛清漆甘油醚)及其衍生物含量的超高效液相色谱-串联质谱检测法。前处理包括正己烷/丙酮微波辅助萃取,Varain-PS-DVB固... 建立了一种罐头食品中的BADGE(bisphenol A diglycidyl ether,双酚A-二环氧甘油醚)、NOGE(novolacglycidyl ether,酚醛清漆甘油醚)及其衍生物含量的超高效液相色谱-串联质谱检测法。前处理包括正己烷/丙酮微波辅助萃取,Varain-PS-DVB固相萃取柱净化等。样品经BEH C18色谱柱(100 mm×2.1 mm,1.7μm)分离,以乙腈和0.2%甲酸水为流动相,进行梯度洗脱,在API 4000-QTRAP质谱仪电喷雾正离子、多反应监测(MRM)模式下进行检测。分析物检出限达到0.010 2 ng/g到0.197 2 ng/g,三水平加标回收率在65.7%~99.1%。 展开更多
关键词 超高效液相色谱-串联质谱法 罐头食品 BADGE NOGE 衍生物 检测
在线阅读 下载PDF
电子徽章规范:Mozilla Open Badgs解读 被引量:5
5
作者 李青 于文娟 《现代远程教育研究》 CSSCI 2014年第1期100-106,共7页
电子徽章是近两年伴随开放资源运动、大规模在线开放课程等新型学习资源和学习模式出现的一种新型学习评估认证方式,具有高度的灵活性,可满足各类学习方式的需要,有助于弥补传统评价方式的不足。但是在电子徽章应用的初期,各种组织都在... 电子徽章是近两年伴随开放资源运动、大规模在线开放课程等新型学习资源和学习模式出现的一种新型学习评估认证方式,具有高度的灵活性,可满足各类学习方式的需要,有助于弥补传统评价方式的不足。但是在电子徽章应用的初期,各种组织都在开发和应用自己的徽章体系,由此造成了徽章种类繁多、形状不确定以及采用标准不统一等问题,使得电子徽章的可信度和可用度降低,推广和应用变得困难。为解决这些问题,美国开源软件组织Mozilla基金会启动了Open Badge项目,以提供一个规范化的电子徽章创建、发布和认证技术架构(OBI)。OBI架构分为徽章获得者、发布人、展示者三类角色,主要包括元数据规范、APIs、认证框架和徽章背包等模块。利用OBI,任何学习者都可以从多个来源收集徽章,并统一保存和管理;徽章发行者和展示者也可以通过标准化的API、元数据规范以及统一的身份认证机制,制作和展示徽章。虽然OBI的开放标准取得了电子徽章方面很大的市场份额,但是在可信度、可靠性以及可验证性等方面还需要继续完善。未来的OBI将会在徽章展示、权限、接口等方面进行优化,使其更贴近实际应用。 展开更多
关键词 学习评估 认证方式 电子徽章 OPEN BADGE OBI 技术规范
在线阅读 下载PDF
罐装食品内壁涂层中双酚A衍生物的迁移研究 被引量:3
6
作者 蓝勇波 黎绍学 +3 位作者 郑彦婕 钟文健 陈嘉琪 罗尔伦 《广东化工》 CAS 2016年第5期69-70,共2页
本实验应用高效液相色谱-荧光检测法分析罐装食品内壁涂层中双酚A类衍生物的迁移情况,重点调研罐装奶粉、罐装功能饮料、熟肉制品罐头及鱼罐头等酸性及油脂性食品的包装材料中双酚A-二缩水甘油醚与双酚F-二缩水甘油醚等双酚A衍生物的迁... 本实验应用高效液相色谱-荧光检测法分析罐装食品内壁涂层中双酚A类衍生物的迁移情况,重点调研罐装奶粉、罐装功能饮料、熟肉制品罐头及鱼罐头等酸性及油脂性食品的包装材料中双酚A-二缩水甘油醚与双酚F-二缩水甘油醚等双酚A衍生物的迁移情况。检测发现,罐装功能饮料、熟肉制品罐头及鱼罐头等金属罐内壁涂层均存在不同程度双酚A类衍生物迁移,部分样品更超出了欧盟关于环氧树脂涂层的限量要求。 展开更多
关键词 迁移 双酚A衍生物 BADGE BFDGE 罐装食品 涂层
在线阅读 下载PDF
固化工艺对食品罐内涂膜中双酚A二环氧甘油醚分配系数的影响
7
作者 任小玲 梅小虎 +2 位作者 胡英平 叶敏立 向红 《食品工业科技》 CAS CSCD 北大核心 2017年第6期239-244,共6页
本文根据Box-Beknhen的中心组合实验设计原理,在单因素实验的基础上,采用三因素三水平的响应曲面分析法,考察烘烤温度、涂膜厚度和烘烤时间对食品罐内涂膜中双酚A二环氧甘油醚(BADGE)的分配系数的影响,建立食品罐内涂膜固化工艺参数优... 本文根据Box-Beknhen的中心组合实验设计原理,在单因素实验的基础上,采用三因素三水平的响应曲面分析法,考察烘烤温度、涂膜厚度和烘烤时间对食品罐内涂膜中双酚A二环氧甘油醚(BADGE)的分配系数的影响,建立食品罐内涂膜固化工艺参数优化的二次多项式数学模型。结果表明:三因素影响程度大小次序为:涂膜厚度>烘烤温度>烘烤时间,且三因素两两交互作用均为极显著(p<0.01),最优固化工艺为:烘烤温度200℃、涂膜厚度12 g/m^2、烘烤时间12 min,此时BADGE的分配系数值为2313.04,且与实验值较为接近。说明该响应面得到的工艺参数准确可靠,对提高食品罐的安全性具有一定的指导意义。 展开更多
关键词 BADGE 分配系数 固化工艺 响应面法 食品罐内涂膜
原文传递
Symbolic Images of Colors, Animals and Machines in The Red Badge of Courage
8
作者 王晓俊 《英语广场(学术研究)》 2014年第1期23-27,30,共6页
Abstract:Stephen Crane was an outstanding American novelist,poet,and journalist.He achieved great success in his literary works during his brief career.Crane’s most well-known work,The Red Badge of Courage,is commonl... Abstract:Stephen Crane was an outstanding American novelist,poet,and journalist.He achieved great success in his literary works during his brief career.Crane’s most well-known work,The Red Badge of Courage,is commonly believed to be the first great novel of the American Civil War,largely because of its vivid and detailed description of the experience of warfare.This paper analyzes the images of color,animal and machine,which convey Crane’s thoughts of war:war is full of chaos,brutality,and confusion,without any romantic elements or heroism. 展开更多
关键词 The Red Badge of Courage symbolic images color images animal images machine images
在线阅读 下载PDF
食品罐内壁涂层中双酚A-二缩水甘油醚双水合物的迁移特性的数值仿真与实验研究 被引量:2
9
作者 李大伟 范小平 +3 位作者 岳淑丽 向红 赵宇晖 张作全 《食品工业科技》 CAS CSCD 北大核心 2012年第17期276-279,共4页
对金属罐内壁涂层中的有害物质(双酚A-二缩水甘油醚双水合物,以下简称BADGE·2H2O)向食品模拟液在给定条件下的迁移特性进行了数值仿真,并与对应条件下的实验结果进行了对比、分析。结果表明:温度、初始浓度、涂层厚度对物质迁移的... 对金属罐内壁涂层中的有害物质(双酚A-二缩水甘油醚双水合物,以下简称BADGE·2H2O)向食品模拟液在给定条件下的迁移特性进行了数值仿真,并与对应条件下的实验结果进行了对比、分析。结果表明:温度、初始浓度、涂层厚度对物质迁移的影响较大;对于给定的温度,温度越高,则迁移达到平衡时所需要的时间越短,迁移量越大;对于给定的初始浓度和涂层厚度,初始浓度越大,涂层厚度越厚,则迁移量越大;同时,在不同温度下,BADGE·2H2O从食品罐内壁涂层向水性模拟液迁移的数值解与实验值最大差值为0.023μg/mL。数值仿真与实验结果有较好的一致性。 展开更多
关键词 食品罐 BADGE·2H2O 迁移 数值仿真 食品安全 Comsol MULTIPHYSICS
原文传递
Symbolic Images of Figures in The Red Badge of Courage
10
作者 王晓俊 《海外英语》 2014年第3X期5-7,9,共4页
Crane’s most well-known work,The Red Badge of Courage,is commonly believed to be the first great novel of the American Civil War,largely because of its vivid and detailed description of the experience of warfare.This... Crane’s most well-known work,The Red Badge of Courage,is commonly believed to be the first great novel of the American Civil War,largely because of its vivid and detailed description of the experience of warfare.This paper conveys figure images symbolize that human life is insignificant in an indifferent universe in the novel,which are perfect symbolic images distinguish Crane as a forerunner of modernistic writers. 展开更多
关键词 CRANE The Red BADGE of COURAGE SYMBOLIC images FIG
在线阅读 下载PDF
日本航空自卫队基地防空地面设施(BADGE)系统 被引量:1
11
作者 刘春阳 《现代防御技术》 2001年第6期10-15,20,共7页
分别讨论航空自卫队BADGE系统的指挥控制、通信、侦察监视和预警以及电子战系统 ,介绍其历史沿革、现状和发展趋势 。
关键词 日本 航空自卫队 C^3I指挥控制 军事通信 侦察监视 防空预警 电子战 基地防空设施 BADGE系统
在线阅读 下载PDF
Filter badge SO_2捕集-离子色谱法测定空气中二氧化硫 被引量:3
12
作者 陈秀娟 谭红 +1 位作者 洪涛 沈方祥 《中国环境监测》 CAS CSCD 北大核心 2009年第5期45-46,共2页
用Filter badge SO2捕集空气中SO2。用双氧水将捕集到的SO2氧化成SO42-,再用离子色谱法测定SO42-的浓度,按公式f SO2=2082×103×(T/τ)X计算,即可得到捕集时间内的平均SO2浓度f SO2(ppb)。
关键词 FILTER BADGE SO2 二氧化硫 离子色谱
在线阅读 下载PDF
“985工程”院校校徽视觉传达研究
13
作者 杨婷 《艺术科技》 2015年第8期207-,共1页
本研究以语义分析法,对国内39所"985工程"院校校徽图案的视觉传达意象进行实验,主要目的在探讨不同院校的校徽设计,对其图案意象是否产生影响,实验所得之主要结果摘述如下:在对"985工程"院校毫无主观印象的基础上,... 本研究以语义分析法,对国内39所"985工程"院校校徽图案的视觉传达意象进行实验,主要目的在探讨不同院校的校徽设计,对其图案意象是否产生影响,实验所得之主要结果摘述如下:在对"985工程"院校毫无主观印象的基础上,传统名校的校徽识别性并不高,无法与学校名称的识别性成正比;图案意象——以因素分析(factor analysis)来进行语义分析法的解析,发现影响校徽图案的意象因素为"现代感因素"、"美观感因素"、"华丽感因素",其所能解释的总变异量为87.292%;其中以"现代感因素"所占比例最高(40.989%),其次是"美观感因素"(29.379%),而"华丽感因素"所占的比例最少(16.924%)。 展开更多
关键词 图案意象pattern image 校徽school BADGE 视觉传达visual COMMUN
在线阅读 下载PDF
A Research on Symbolism in The Red Badge of Courage
14
作者 曾杰 《海外英语》 2010年第12X期242-244,共3页
Stephen Crane(Stephen Crane,1871-1900),a famous American novelist and poet.The Red Badge of Courage,his masterwork,published in book form in 1895,has been widely acknowledged as a classic in American literary history.... Stephen Crane(Stephen Crane,1871-1900),a famous American novelist and poet.The Red Badge of Courage,his masterwork,published in book form in 1895,has been widely acknowledged as a classic in American literary history.In most cases,symbolism is considered to be a technique used by Crane to convey its naturalistic theme.This thesis attempts to make a detailed analysis of the system of symbols in The Red Badge of Courage to show that symbolism is used by Crane to better convey his naturalistic ideas so that a better understanding and appreciation of the work can be achieved.Crane's symbolic style makes him become a pioneer modernistic writer who has influenced many later writers. 展开更多
关键词 Stephen CRANE The RED BADGE of COURAGE symbolism.
在线阅读 下载PDF
Literature Review on The Red Badge of Courage
15
作者 李翠翠 《海外英语》 2010年第6X期228-229,共2页
The Red Badge of Courage is one of the most controversial works of Stephen Crane.Critics have long debated whether this novel should be considered a product of any specific literary movement or method,which is listed ... The Red Badge of Courage is one of the most controversial works of Stephen Crane.Critics have long debated whether this novel should be considered a product of any specific literary movement or method,which is listed in this literature review. 展开更多
关键词 The RED BADGE of COURAGE Stephen CRANE LITERATURE review
在线阅读 下载PDF
An Analysis of Stephen Crane's The Red Badge of Courage
16
作者 李楠 《疯狂英语(教师版)》 2012年第3期198-199,204,共3页
The Red Badge of Courage,the masterpiece of Stephen Crane,was "an episode of the American Civil War".It is written in a naturalistic style which indicates the trend of naturalistic writings in the 20th centu... The Red Badge of Courage,the masterpiece of Stephen Crane,was "an episode of the American Civil War".It is written in a naturalistic style which indicates the trend of naturalistic writings in the 20th century in America.As a naturalist novel,it takes survival,determinism,violence,and taboo as key themes,and shows indifference of the natural world. 展开更多
关键词 Stephen Crane The Red Badge of Courage NATURALISM indifference of the nature
在线阅读 下载PDF
高效液相色谱法测定食品用金属容器内壁涂料中的双酚A二缩水甘油醚(BADGE) 被引量:1
17
作者 白彦坤 郭丽敏 +3 位作者 王琪 张敬轩 李文良 刘金鹏 《现代仪器》 2010年第5期88-89,69,共3页
建立一种测定食品用金属容器内涂料中的双酚A二缩水甘油醚(BADGE)的方法。采用选择不同的模拟条件提取样品,用高效液相色谱进行测定。方法的检出限为0.05μg/mL,回收率为85.2%~93.1%,相对标准偏差为2.9%~5.2%。
关键词 双酚A二缩水甘油醚(BADGE) 高效液相色谱 食品用金属容器
在线阅读 下载PDF
Study on Human Weaknesses in Henry in The Red Badge of Courage
18
作者 CHU Shi-qi 《Journal of Literature and Art Studies》 2022年第12期1257-1260,共4页
As one of Crane’s most representative works,The Red Badge of Courage has been paid much attention to and studied by scholars at home and abroad from different perspectives since its publication.As for me,I’d like to... As one of Crane’s most representative works,The Red Badge of Courage has been paid much attention to and studied by scholars at home and abroad from different perspectives since its publication.As for me,I’d like to study on human weaknesses in Henry in The Red Badge of Courage to give an analysis of the three main human weaknesses existing in Henry and explore the underlying causes.It will be of great benefit to promote our understanding of the novel from this angle,thus bringing us much practical significance. 展开更多
关键词 The Red Badge of Courage human weaknesses Henry
暂未订购
Naturalistic Analysis on Stephen Crane's The Red Badge of Courage
19
作者 李夏莲 胡笑瑛 《海外英语》 2015年第6期167-168,共2页
The Red Badge of Courage is the masterpiece of Stephen Crane. As a naturalist novel, its success is based on strong visual stimulation and the continuous auditory shock, a three-dimensional war movie which is cracklin... The Red Badge of Courage is the masterpiece of Stephen Crane. As a naturalist novel, its success is based on strong visual stimulation and the continuous auditory shock, a three-dimensional war movie which is crackling with sounds and colors was rendered so incisively and vividly. This paper aims to probe the naturalism in The Red Badge of Courage from two angles:visual aspects and auditory aspects. 展开更多
关键词 The Red BADGE of COURAGE NATURALISM visual ASPECTS AUDITORY ASPECTS
在线阅读 下载PDF
The Red Badge of Courage: The Greatest Truth of War
20
作者 张志远 《海外英语》 2017年第8期177-178,共2页
The Red Badge of Courage is a classic in American literature, which exerts a profound influence on war novels afterwards. Inthis novel, instead of depicting war as something heroic or glorious, Stephen Crane describe ... The Red Badge of Courage is a classic in American literature, which exerts a profound influence on war novels afterwards. Inthis novel, instead of depicting war as something heroic or glorious, Stephen Crane describe the war in an alarming way, thus uncoveringthe truth of war and highlighting its anti-war theme. 展开更多
关键词 WAR The Red Badge of Courage BRUTALITY humbleness subhuman ANTI-WAR
在线阅读 下载PDF
上一页 1 2 下一页 到第
使用帮助 返回顶部