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Board-invited review: Sensitivity and responses of functional groups to feed processing methods on a molecular basis 被引量:2
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作者 Peiqiang Yu 《Journal of Animal Science and Biotechnology》 SCIE CAS 2013年第1期1-4,共4页
In complex feed structures, there exist main chemical functional groups which are associated with nutrient utilization and availability and functionality. Each functional group has unique molecular structure therefore... In complex feed structures, there exist main chemical functional groups which are associated with nutrient utilization and availability and functionality. Each functional group has unique molecular structure therefore produce unique molecular vibration spectral profile. Feed processing has been used to improve nutrient utilization for many years. However, to date, there was little study on processing-induced changes of feed intrinsic structure and functional groups on a molecular basis within intact tissue. This is because limited research technique is available to study inherent structure on a molecular basis. Recently bioanalytical techniques: such as Synchrotron Infrared Microspectroscopy as well as Diffuse Reflectance Infrared Fourier Transform molecular spectroscopy have been developed. These techniques enable to detect molecular structure change within intact tissues. These techniques can prevent destruction or alteration of the intrinsic protein structures during processing for analysis. However, these techniques have not been used in animal feed and nutrition research. The objective of this review was show that with the advanced technique, sensitivity and responses of functional groups to feed processing on a molecular basis could be detected in my research team. These functional groups are highly associated with nutrient utilization in animals. 展开更多
关键词 Sensitivity and responses of functional groups Molecular structures Feed processing Nutrient utilizationand availability
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Effect Observation of Process Diabetes Group Nursing on Patients with Diabetes Mellitus 被引量:1
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作者 Menghu Zhang 《Journal of Clinical and Nursing Research》 2021年第5期104-107,共4页
Objective:Discuss the clinical effect of the process diabetes nurse group in the treatment of diabetes patients.Methods:A total of 58 patients with diabetes who received treatment in our hospital from January 2021 to ... Objective:Discuss the clinical effect of the process diabetes nurse group in the treatment of diabetes patients.Methods:A total of 58 patients with diabetes who received treatment in our hospital from January 2021 to June 2021 were selected,and the 58 patients were divided into two groups by random number table.In one group,29 patients were treated with process diabetes group nursing,which was recorded as the observation group;in the other group,29 patients were treated with conventional care,which was recorded as the control group.Nursing satisfaction,compliance behavior of patients,and adverse incidence were analyzed.Results:After nursing,the data of the two groups were summarized.The score of compliance behavior in the observation group was 91.23±4.56,which was significantly better than that in the control group(75.13土5.23).The t values of the score of compliance behavior were 12.4952,P<0.05.The qualified rate of fasting blood glucose in the observation group was 100%,which was significantly higher than that in the control group(62.07%),P<0.05.According to the questionnaire analysis,there were 18 patients in the observation group who were very satisfied,8 patients who were satisfied and 3 patients who were not satisfied,with a total satisfaction rate of 89.66%,and in the control group,there were 4 patients who were very satisfied,15 patients who were satisfied and 10 patients who were not satisfied,with a total satisfaction rate of 65.52%.The control group was significantly inferior to the observation group,and P<0.05 was regarded as statistically significant.Conclusion:Adopting the process of diabetes group nursing can effectively enhance the compliance behavior of patients,and effectively control the blood sugar index of patients,and improve the satisfaction degree of patients. 展开更多
关键词 process diabetes group nursing DIABETES Blood glucose value
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Some Group Runs Based Multivariate Control Charts for Monitoring the Process Mean Vector
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作者 Mukund Parasharam Gadre Vikas Chintaman Kakade 《Open Journal of Statistics》 2016年第6期1098-1109,共13页
In this article, we propose two control charts namely, the “Multivariate Group Runs’ (MV-GR-M)” and the “Multivariate Modified Group Runs’ (MV-MGR-M)” control charts, based on the multivariate normal processes, ... In this article, we propose two control charts namely, the “Multivariate Group Runs’ (MV-GR-M)” and the “Multivariate Modified Group Runs’ (MV-MGR-M)” control charts, based on the multivariate normal processes, for monitoring the process mean vector. Methods to obtain the design parameters and operations of these control charts are discussed. Performances of the proposed charts are compared with some existing control charts. It is verified that, the proposed charts give a significant reduction in the out-of-control “Average Time to Signal” (ATS) in the zero state, as well in the steady state compared to the Hotelling’s T2 and the synthetic T2 control charts. 展开更多
关键词 Some group Runs Based Multivariate Control Charts for Monitoring the process Mean Vector
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全流程多源数据驱动下的民航旅客风险评估方法
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作者 杨俊 刘昊燃 +2 位作者 汪磊 王菲茵 吴仁彪 《安全与环境学报》 北大核心 2026年第1期1-10,共10页
为有效应对民航安保中的旅客引发的风险事件,保障航空安全,提出了一种基于多源情报数据融合的民航旅客风险动态评估方法。首先,采用综合法对民航旅客进行风险源辨识,在此基础上建立了涵盖7个维度共29个指标的民航旅客风险评估指标体系... 为有效应对民航安保中的旅客引发的风险事件,保障航空安全,提出了一种基于多源情报数据融合的民航旅客风险动态评估方法。首先,采用综合法对民航旅客进行风险源辨识,在此基础上建立了涵盖7个维度共29个指标的民航旅客风险评估指标体系。其次,建立二级指标风险情形库并引入集值统计法量化情形风险值。最后,提出了一种将不同模糊算子与单因素评判向量精确处理相结合的改进模糊综合评价方法,构建民航旅客风险评估模型。在构建的民航旅客风险评估数据集上对所提方法进行验证,并通过实际案例对所提方法进行可行性分析。研究表明,在有效结合专家经验和指标特征的基础上,所提出的民航旅客风险评估方法能够动态评估旅客行程中各环节的风险情况,实现旅客风险级别的准确评估,为科学全面的民航旅客风险分析提供理论支持。 展开更多
关键词 公共安全 民航安保 风险源辨识 风险评估 群体层次分析法 改进模糊综合评价
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时频后处理:理论综述及其在储层表征中的应用
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作者 陈辉 王思媛 +1 位作者 胡英 陈旭平 《地球物理学报》 北大核心 2026年第2期451-468,共18页
时频分析是揭示非平稳信号特征的重要工具.针对传统时频谱存在的能量扩散问题,时频后处理方法应运而生.该类方法通过重排原时频谱系数,有效提高时频结果的能量聚焦性,在信号处理领域具有广泛的应用潜力.本文系统综述了时频后处理方法的... 时频分析是揭示非平稳信号特征的重要工具.针对传统时频谱存在的能量扩散问题,时频后处理方法应运而生.该类方法通过重排原时频谱系数,有效提高时频结果的能量聚焦性,在信号处理领域具有广泛的应用潜力.本文系统综述了时频后处理方法的理论进展,梳理并辨析不同方法间的内在联系,从而提供一个全面而清晰的概述.通过数值算例,对比分析同步挤压类方法与同步提取类方法的时频谱差异,并直观展现不同估计量的时频定位能力,为方法选择提供参考依据.此外,本文探讨了时频后处理方法在储层表征中的应用价值.对模拟地震信号和实际地震资料的分析表明,基于瞬时频率的后处理方法对薄互层的频率响应更为敏感,而基于群延迟的后处理方法在识别地震反射界面上具有优势.上述研究为解决复杂储层表征问题提供了新的思路和方法.最后,本文从多道地震信号处理、时频谱特征以及深度学习融合等角度,对时频后处理方法的研究趋势进行了展望. 展开更多
关键词 时频分析 时频后处理 瞬时频率 群延迟 储层表征
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基于群决策和层次分析法的城市绿地园林植物综合评价体系构建及应用——以成都市主城区为例
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作者 陈俊华 何家敏 +4 位作者 蒋川东 刘一丁 肖逸先 李永骏 唐艺家 《四川林业科技》 2026年第1期31-43,共13页
开展城市绿地植物评价,科学合理地选择园林植物,使其充分发挥生态、社会、景观等多种功能和效益,对于城市生态文明建设具有重要意义。如何选择更加全面的评价指标,构建城市绿地植物综合评价体系显得十分必要。提出了一套指标筛选、综合... 开展城市绿地植物评价,科学合理地选择园林植物,使其充分发挥生态、社会、景观等多种功能和效益,对于城市生态文明建设具有重要意义。如何选择更加全面的评价指标,构建城市绿地植物综合评价体系显得十分必要。提出了一套指标筛选、综合评价体系构建的方法,并以成都市主城5区的290种绿地园林植物(其中乔木116种,灌木(含藤本)88种,草本(含竹类)86种)为例进行了应用。研究结果如下:(1)在指标的选择上,首先通过文献查找、专家咨询,采用“头脑风暴法”初选了6个准则层(生物学特性、景观价值、生态功能、生态适应性、文化经济功能、造林管护成本)50个指标;然后邀请20名专家,采用德尔菲法对初选指标进行三轮筛选,最终选出35个指标,构建起城市绿地园林植物评价指标体系。(2)在综合评价模型的构建上,采用群决策和层次分析法相结合的方法。(1)邀请18名专家对6个准则层、35个指标的重要性分别进行打分,采用层次分析法构建判断矩阵,计算每个专家的个体权重;(2)将专家个体权重作为标准进行系统聚类,根据不同专家所在类别中的专家数量来计算权重系数。将个体权重与专家权重系数进行线性加权,计算得到评价对象的群体权重;(3)基于相关研究和专家咨询结果,对每个指标建立1~5分的等级评价标准。根据等级评价标准,通过查阅相关参考文献以及征求专家意见,获得各参评对象各指标的得分值,最后将群体权重和评价对象的得分值进行加权求和,得到评价对象的综合评价分。(3)对成都市主城5区的绿地园林植物评价结果为:乔木综合得分3.5以上的占比为52.59%,灌木(含藤本)综合得分3.0以上的占比为68.18%,草本(含竹类)综合得分2.8以上的占比为80.23%;5个主城区的加权综合评价得分70.46~71.04分,说明成都市的绿地园林植物应用处于中等偏上水平。研究成果可为城市绿地植物综合评价体系构建提供方法参考,也可为成都建设“公园城市示范区”进程中园林植物的选用和景观的营建提供科学依据和实践参考。 展开更多
关键词 群决策 层次分析法 评价指标体系 城市绿地园林植物
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金川矿床3号矿体成矿过程及对成矿模式的启示
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作者 王亚磊 李文渊 +3 位作者 王永才 张照伟 艾启兴 黑欢 《地球科学》 北大核心 2026年第1期240-256,共17页
为查明金川矿床3号矿体成矿过程、深化成矿模式,利用电子探针、全岩主微量,Ni、Cu及PGE元素分析等方法,获取3号矿体中细粒及伟晶状二辉橄榄岩中橄榄石Fo值及Ni含量为82.4%~85%和1 069×10^(-6)~2 420×10^(-6);Fo值及Ni含量具... 为查明金川矿床3号矿体成矿过程、深化成矿模式,利用电子探针、全岩主微量,Ni、Cu及PGE元素分析等方法,获取3号矿体中细粒及伟晶状二辉橄榄岩中橄榄石Fo值及Ni含量为82.4%~85%和1 069×10^(-6)~2 420×10^(-6);Fo值及Ni含量具有由北西向南东逐渐变高趋势.主量元素变化表明3号矿体主要发生了橄榄石和辉石的分离结晶;赋矿岩体略富集轻稀土元素,明显富集LILE而亏损HFSE.3号矿体铂族元素含量与24号矿体相似,明显高于1号和2号矿体.3号矿体南东方向深部仍存在基性程度更高且含矿性更好的矿体,金川矿床是“幔源岩浆深部硫化物熔离-含矿岩浆多中心”侵位的产物,3号和24号矿体共用同一岩浆通道,1号和2号矿体是含矿岩浆沿不同通道分别侵位的产物. 展开更多
关键词 龙首山成矿带 金川铜镍硫化物矿床 分离结晶过程 铂族元素 多中心侵位 矿床学
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并行工程开发模式在企业中的应用
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作者 赵飞 贾杏歌 李俊虎 《电子质量》 2026年第1期28-33,共6页
针对企业创新产品开发中效率与质量难以兼顾的问题,构建了一套基于并行工程的系统性质量管理优化方案。通过重构覆盖产品全生命周期的开发流程,整合设计、工艺、制造等多维度资源与部门协同机制,并运用面向制造、工装、成本、品质及生... 针对企业创新产品开发中效率与质量难以兼顾的问题,构建了一套基于并行工程的系统性质量管理优化方案。通过重构覆盖产品全生命周期的开发流程,整合设计、工艺、制造等多维度资源与部门协同机制,并运用面向制造、工装、成本、品质及生产等系列设计工具,实现了开发过程的前端风险识别与跨阶段技术协同。实践表明,该方法能有效缩短开发周期、降低工程变更频次,并显著提高新产品开发成功率。其不仅为复杂系统开发提供了一种可复用的管理体系,也为企业在创新过程中平衡技术探索与工程实施提供了理论支持和实践路径。 展开更多
关键词 并行工程 跨功能小组 产品开发流程 高效运营
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系统把握卡尔·马克思读书笔记群的三维论析
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作者 谢忠强 《系统科学学报》 北大核心 2026年第1期123-128,共6页
卡尔·马克思(Karl Marx)自大学时代始就养成了凡读书必做读书笔记的治学风格,并写出了数量庞大、主题各异的读书笔记群。卡尔·马克思的读书笔记群既是他毕生理论探索的重要文本见证,更是其思想发展的年轮映射。系统把握卡尔&#... 卡尔·马克思(Karl Marx)自大学时代始就养成了凡读书必做读书笔记的治学风格,并写出了数量庞大、主题各异的读书笔记群。卡尔·马克思的读书笔记群既是他毕生理论探索的重要文本见证,更是其思想发展的年轮映射。系统把握卡尔·马克思的读书笔记群需要着重从形成过程、写作方式和整体特点等三个维度入手。从系统把握卡尔·马克思读书笔记群的角度而言,形成过程是系统理解其文本时间分布的学理维度,写作方式是科学认识其文本类型的学理维度,整体特点是全面把握其文本样貌的学理维度。 展开更多
关键词 卡尔·马克思 读书笔记群 形成过程 写作方法 整体特点
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高层建筑电梯群控系统优化设计
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作者 沈灵 《现代制造技术与装备》 2026年第2期13-15,共3页
以某超高层建筑电梯群控系统为研究对象,重点阐述系统优化设计中涉及的装备选型、制造工艺提升、系统集成及质量控制等关键工程技术环节,并系统介绍基于智能控制的群控优化方案的实施与效果,以期为高层建筑垂直交通系统的能效提升与装... 以某超高层建筑电梯群控系统为研究对象,重点阐述系统优化设计中涉及的装备选型、制造工艺提升、系统集成及质量控制等关键工程技术环节,并系统介绍基于智能控制的群控优化方案的实施与效果,以期为高层建筑垂直交通系统的能效提升与装备技术升级提供实践参考。 展开更多
关键词 高层建筑 电梯群控系统 工艺优化
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基于微信群区域协同急救流程管理在急性心肌梗死急诊介入治疗患者中的应用效果
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作者 李秀秀 翟佳 张亚蒙 《临床医学研究与实践》 2026年第3期141-144,共4页
目的探讨基于微信群区域协同急救流程管理在急性心肌梗死急诊介入治疗患者中的应用效果。方法纳入郑州市第三人民医院收治的94例急性心肌梗死患者为研究对象,其中2020年5月至2021年5月收治的47例患者作为对照组(实施常规干预流程),2021... 目的探讨基于微信群区域协同急救流程管理在急性心肌梗死急诊介入治疗患者中的应用效果。方法纳入郑州市第三人民医院收治的94例急性心肌梗死患者为研究对象,其中2020年5月至2021年5月收治的47例患者作为对照组(实施常规干预流程),2021年6月至2022年4月收治的47例患者作为研究组(实施基于微信群区域协同救治流程管理)。比较两组的冠状动脉造影结果、经皮冠状动脉介入治疗(PCI)情况、主要心血管事件发生情况及家属满意度。结果两组患者的罪犯血管、血管病变支数无显著差异(P>0.05)。研究组的发病至首次医疗接触(SO-to-FMC)时间、首次医疗接触至球囊扩张(FMC-to-B)时间、进门至球囊扩张(D-to-B)时间均较对照组缩短,FMC-to-B时间达标率较对照组升高(P<0.05);两组患者住院时间、病死率无显著差异(P>0.05)。研究组的主要心血管事件总发生率为29.79%,低于对照组的53.19%(P<0.05)。研究组的家属满意度为95.74%,高于对照组的82.98%(P<0.05)。结论基于微信群区域协同急救流程管理可缩短急性心肌梗死急诊介入治疗患者SO-to-FMC时间、FMC-to-B时间、D-to-B时间,提升FMC-to-B时间达标率,降低主要心血管事件发生率,且患者家属满意度较高,值得临床应用。 展开更多
关键词 急性心肌梗死 经皮冠状动脉介入治疗 微信群 区域协同急救流程管理
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东北作家群的形成与1930年代上海文坛
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作者 冯芽 《海南师范大学学报(社会科学版)》 2026年第1期77-87,共11页
九一八事变爆发后,东北成为备受关注的抗战前沿地带,书写沦陷东北也成为抗战文学的先锋一种。在此背景下,1930年代从东北流徙上海的青年作家萧军、萧红经由以鲁迅为代表的左翼文学的发现而蜚声上海文坛,《八月的乡村》《生死场》等作品... 九一八事变爆发后,东北成为备受关注的抗战前沿地带,书写沦陷东北也成为抗战文学的先锋一种。在此背景下,1930年代从东北流徙上海的青年作家萧军、萧红经由以鲁迅为代表的左翼文学的发现而蜚声上海文坛,《八月的乡村》《生死场》等作品也作为表现抗战意识与民族精神的典范被上海文学界及广大读者接受,“二萧”跻身先进作家行列。随后,舒群、罗烽、白朗、端木蕻良、骆宾基等一群东北流亡青年云集上海,“东北作家”的称谓开始广为人知。东北作家们在同一批进步刊物上发表作品,共同参与一系列文学事件与文学活动,产生了群体性影响。由此,东北作家群在与上海文坛的对话及互动中形成,并有力地推进了抗战文学的发展历程。 展开更多
关键词 东北作家群 上海文坛 形成过程 抗战文学
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The Values & Benefits of Umicore's Process Excellence Model 被引量:1
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作者 LEYRER Jurgen JANTZEN Sven 《贵金属》 CAS CSCD 北大核心 2012年第A01期288-293,共6页
We will highlight the values Umicore's unique Process Excellence Model is based upon and how these do correlate with the overall culture of Umicore. Besides, we are going to explain about the benefits for the targ... We will highlight the values Umicore's unique Process Excellence Model is based upon and how these do correlate with the overall culture of Umicore. Besides, we are going to explain about the benefits for the target industries that come along with our approach. Here, we will not mainly focus on the usually mentioned cost saving potential, but how also other aspects do create substantial value for the industries. 展开更多
关键词 material manufacturing platinum group metals special glass catalyst gauzes process excellence
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Attitudes to Group Assessments: Prospective Psychotherapists’ Experiences of Being Assessed by Fellow Students
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作者 Anette Jervelycke Billy Larsson Torsten Norlander 《Open Journal of Medical Psychology》 2017年第3期179-196,共18页
Background: The guidance of prospective therapists focused on Cognitive Behavioral Therapy (CBT) is most often made by groups of four students. However, learning therapist skills is a sensitive process that will be af... Background: The guidance of prospective therapists focused on Cognitive Behavioral Therapy (CBT) is most often made by groups of four students. However, learning therapist skills is a sensitive process that will be affected by the processes which occur within the group. Objective: The aim was to examine prospective psychotherapists’ attitudes to group assessments based on the revised version of the Cognitive Therapy Scale (CTS-R). Method: Participants were 56 students with an average age of 45.65 years (range = 31 - 64). They were recruited from psychotherapy training at the Gothenburg University and the Evidens University College in Sweden. A questionnaire was constructed in which the questions were answered by check on visual analogue scales (VAS). Results: A majority of students consisting of 38 participants (68%) had a very positive approach to group assessments, while a minority of 18 participants (32%) was more negative. Most crucial for how to answer the question of group assessments was whether they considered themselves as fairly evaluated by their student colleagues within the group and whether or not only the supervisor should make the assessments. The view of group assessments (negative or positive) was not related to age, gender, and level of education in CBT or profession. In addition, both groups had a very positive view of both the CTS-R and the supervisors. Conclusion: It was concluded that more studies with the same focus are needed to determine the extent to which the results are generalizable. 展开更多
关键词 CBT Competences CTS-R Evaluation process group Assessments PROSPECTIVE PSYCHOTHERAPISTS
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Optical time-domain differentiation based on intensive differential group delay
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作者 李政勇 余向志 吴重庆 《Chinese Physics B》 SCIE EI CAS CSCD 2011年第10期267-271,共5页
An optical time-domain differentiation scheme is proposed and demonstrated based on the intensive differential group delay in a high birefringence fibre waveguide. Results show that the differentiation waveforms agree... An optical time-domain differentiation scheme is proposed and demonstrated based on the intensive differential group delay in a high birefringence fibre waveguide. Results show that the differentiation waveforms agree well with the mathematically calculated derivatives. Both error and efficiency will increase when the birefringence fibre becomes longer, and the error rises up more quickly while the efficiency approaches to a maximum of ~0.25. By using a 1-m birefringence fibre a lower error of ~0.26% is obtained with an efficiency of 1% for the first-order differentiation of 10-ps Gaussian optical pulses, and the high-order optical differentiation up to 4th order is achieved with an error less than 3%. Due to its compact structure being easy to integrate and cascade into photonic circuits, our scheme has great potential for ultrafast signal processing. 展开更多
关键词 optical signal processing DIFFERENTIATION differential group delay
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Characteristics of coal sludge slurry prepared by a wet-grinding process 被引量:4
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作者 Ma Shaolian Wu Guoguang +4 位作者 Meng Xianliang Zhou Rui Chu Ruizhi Miao Zhenyong Qi Yueming 《International Journal of Mining Science and Technology》 SCIE EI CSCD 2016年第5期947-953,共7页
Coal sludge slurry(CSS) is an alternative fuel and a potential competitive method for sludge reduction.Based on the researches of coal water slurry, we studied CSSs by using a wet-grinding process with different types... Coal sludge slurry(CSS) is an alternative fuel and a potential competitive method for sludge reduction.Based on the researches of coal water slurry, we studied CSSs by using a wet-grinding process with different types of regional municipal sludge(sludge) in an orthogonal experiment. The sludge type,sludge mixing proportion, dosage of dispersant, and grinding time were tested in this study. The results show that water content and its occurrence characteristics in the sludge have primary hindering influences on slurry ability. The range of fixed-viscosity concentrations with raw wet sludge is from 50.78%to 44.40%(by weight), while the range is from 53.35% to 51.51%(by weight) with dry sludge. All of the CSSs exhibit shear-thinning behaviors with different variation trends, especially the CSSs with more than 15%(by weight) raw wet sludge in it. Adding the same proportion of raw wet sludge increases the thixotropic properties of CSSs and the highest area of thixotropy loop is 3065 Pa/s, while the highest value of dry sludge is 1798 Pa/s. Hydrophilic group plays an important role in adsorbing water and building three-dimension networks with other particles, which is the main reason for CSS properties.Therefore, the mechanism can be used to find the way for making high quality CSS. 展开更多
关键词 Coal sludge slurry Municipal sludge Wet-grinding process Fixed-viscosity concentration Hydrophilic groups
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柔性断丝技术在卷烟生产分组加工中的研究与应用
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作者 李自娟 王海涛 +8 位作者 邓国栋 陈娇娇 孙朔 赵海洋 吕萱 冯子贤 牛志鹏 王红素 乔宝合 《中国烟草学报》 北大核心 2025年第2期39-46,共8页
【目的】探究制丝分组加工烟丝结构分布变化对卷制适用性的影响。【方法】针对分组加工A模块采用薄板烘丝,B模块采用气流烘丝,利用柔性断丝技术分组M_(0)(A、B模块均不断丝)、M_(1)(A断丝、B不断丝)、M_(2)(A不断丝、B断丝)、M_(3)(A、... 【目的】探究制丝分组加工烟丝结构分布变化对卷制适用性的影响。【方法】针对分组加工A模块采用薄板烘丝,B模块采用气流烘丝,利用柔性断丝技术分组M_(0)(A、B模块均不断丝)、M_(1)(A断丝、B不断丝)、M_(2)(A不断丝、B断丝)、M_(3)(A、B均断丝)优化烟丝结构,分析烟丝结构变化对烟支物理指标、卷制过程的影响。【结果】4种试验模式下,制丝各工序综合稳定性系数控制在97%以上,批次间稳定性好。(1)贮丝柜出口、集丝箱和跑条工序M_(2)组烟丝结构均匀性系数高于其他3组,烟丝尺寸分布较集中,集丝箱至跑条,M_(2)组长丝转化为中短丝的转化率最高,转化为碎丝率最低,烟丝造碎最小;(2)卷制过程中M_(2)组烟支密度分布一致性系数h值较小,密度一致性较好;端部落丝量、缺嘴、过轻和过重的剔废率均改善明显;(3)柔性断丝M_(3)组卷制烟支重量标偏、吸阻标偏、密度一致性系数均较小,即3项指标稳定性优于不断丝的M0组卷制烟支样品。【结论】单独对B模块柔性断丝最有利于改善烟丝结构分布,提升卷制质量。 展开更多
关键词 烟丝结构 柔性断丝技术 分组加工 烟支烟丝密度 物理质量
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GENERALIZED INVERSE GROUP OF SIGNAL AND ITS IMPLEMENTATION WITH NEURAL NETWORKS
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作者 何明一 《Journal of Electronics(China)》 1994年第1期1-10,共10页
A new concept, the generalized inverse group (GIG) of signal, is firstly proposed and its properties, leaking coefficients and implementation with neural networks are presented. Theoretical analysis and computational ... A new concept, the generalized inverse group (GIG) of signal, is firstly proposed and its properties, leaking coefficients and implementation with neural networks are presented. Theoretical analysis and computational simulation have shown that (1) there is a group of finite length of generalized inverse signals for any given finite signal, which forms the GIG; (2) each inverse group has different leaking coefficients, thus different abnormal states; (3) each GIG can be implemented by a grouped and improved single-layer perceptron which appears with fast convergence. When used in deconvolution, the proposed GIG can form a new parallel finite length of filtering deconvolution method. On off-line processing, the computational time is reduced to O(N) from O(N2). And the less the leaking coefficient is, the more reliable the deconvolution will be. 展开更多
关键词 SIGNAL processing NEURAL networks Generalized INVERSE group DECONVOLUTION
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Improved Group Fuzzy Preference Programming Method Based on Fuzzy Random Theory
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作者 黄礼健 吴祈宗 《Journal of Beijing Institute of Technology》 EI CAS 2007年第2期237-242,共6页
A new prioritization method in the analytic hierarchy process (AHP), which improves the group fuzzy preference programming (GFPP) method, is proposed. The fuzzy random theory is applied in the new prioritization m... A new prioritization method in the analytic hierarchy process (AHP), which improves the group fuzzy preference programming (GFPP) method, is proposed. The fuzzy random theory is applied in the new prioritization method. By modifying the principle of decision making implied in the GFPP method, the improved group fuzzy preference programming (IGFPP) method is formulated as a fuzzy linear programming problem to maximize the average degree of the group satisfaction with all possible group priority vectors. The IGFPP method inherits the advantages of the GFPP method, and solves the weighting trouble existed in the GFPP method. Numerical tests indicate that the IGFPP method performs more effectively than the GFPP method in the case of very contradictive comparison judgments from decision makers. 展开更多
关键词 group decision-making analytic hierarchy process (AHP) fuzzy linear programming fuzzy random variable
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