OnStar源位置网络隐私保护的区域模糊搜索算法

Onstar系统广泛应用在导航和卫星定位等系统中,基于Onstar系统的空间区域模糊搜索算法是解决网络隐私保护和源位置挖掘等关键问题的基础。传统方法采用决策树构建算法Diff P-C4.5的网络隐私保护机制,性能不好。提出一种基于On Star源位置网络隐私保护的空间区域模糊搜索算法,研究On Star系统路由协议模型,设计路由转发及隐私保护容错机制,对每层的最小竞争窗口值的调节系数设计为定值,得到每轮消耗的隐私保护预取值。计算On Star源位置加密信息系统传输的通信量,进行On Star源位置网络隐私保护的空间区域模糊搜索算法改进。实验分析得到,该算法能报确保Onstar原位置网络用户的空间区域隐私性,对空间区域的模糊搜索精度较高。     

江苏海产品大规模滞销中的物流因素分析

江苏海产品市场需求时间与物流运输时间之间存在跨度,导致物流运输无法满足海产品市场的需求,是造成江苏海产品大规模滞销的影响因素之一。传统的江苏海产品滞销中物流因素分析模型是根据海产品需求时间与物流运输时间进行物流因素分析的,二者之间的冲突导致该模型出现逆向偏差,造成分析的结果准确性降低。提出了一种基于时间域冲突融合权重评价的江苏海产品滞销中物流因素分析方法。计算时间域冲突融合规则和物流因素影响指标的融合区间,计算物理因素指标控制函数的权重,根据时间域冲突融合相关原理,获取物流因素分析结果,从而使不同的滞销因素之间的冲突达到极小值。实验结果表明,利用该算法进行物理因素分析,能够提高江苏海产品滞销中物流因素分析的准确性,取得了令人满意的结果。     

基于MFRC500芯片的RFID读写器的设计与实现

介绍了一种基于MFRCS00芯片的RFID读写器系统的设计原理,给出该系统的软硬件设计方法。该读写器能够快速、准确读写MIFARF1电子标签,并把所写数据上传到数据库,为用户二次开发提供便利。     

Helmholtz方程的区域分解方法

文章构造了一种Helmholtz方程的区域分解方法.在离散过程中使用了非协调有限元,通过定义一些算子证明了预优问题的条件数是最优的.     

基于离散变换域的语音合成算法研究

提出了一种在离散变换域中合成语音信号的方法,建立语音线性预测模型,对语音信号分帧、加窗,然后进行线性预测和基音周期的提取,进而模拟重构语音信号。实验表明,该方法易于实现,可操作性强,重建的语音信号还原的声音精度高,并能节省信号传输的带宽,相比以往的方法更能方便、准确的重构合成语音信号。     

The Intellectual Landscape of the Domain of Culture and Ethics in Knowledge Organization: An Analysis of Influential Authors and Works

Abstract

This article aims to examine the intellectual landscape of the domain of culture and ethics in knowledge organization (KO). A domain analysis was conducted on a corpus of 206 relevant papers using bibliometric methods such as author co-citation analysis. The findings revealed a core group of influential authors consisting of Olson, Beghtol, and other influential KO researchers. The most prominent research themes that constitute this scientific community have also been investigated by reviewing some fundamental concepts and influential works in the domain.     

Getting Off to a Bad Start: The Relationship Between Communication During an Initial Episode of a Serial Argument and Argument Frequency

This study explores the relationships between features of an initial serial argumentative episode and the number of subsequent episodes. Initiators of the initial episode report a self-demand/partner-withdraw pattern occurs and this pattern is positively related to the number of subsequent episodes. Also, targets of the initial episode report that in the first episode they engaged in partner-demand/self-withdraw, and this pattern was positively related to their perception of constructive outcomes, but these constructive outcomes are not related to the number of subsequent episodes. Participants report that mutual hostility often results in partner-demand/self-withdraw, which is positively related to constructive outcomes. This model is produced in a sample of individuals in intact relationships and replicated in a sample of participants in terminated relationships.     

Chapter 5. Copyright in the Interlibrary Loan Department

Abstract

All members of the Interlibrary Loan department need to be aware of current copyright law and related guidelines. Within the past ten years, there have been significant changes to the copyright laws (Sonny Bono Copyright Term Extension Act, Digital Millennium Copyright Act, TEACH Act, etc.), which have had an impact on the provision of library services, including ILL. Chapter 5 provides extensive background on the provisions of copyright law applicable to interlibrary loan, and also provides practical examples of how those laws and regulations are applied on a daily basis within the ILL department.     

In-pixel charge addition scheme applied in time-delay integration CMOS image sensors

An addition scheme applicable to time-delay integration (TDI) CMOS image sensor is proposed,which adds signals in the charge domain in the pixel array.A two-shared pixel structure adopting two-stage charge transfer is introduced,together with the rolling shutter with an undersampling readout timing.Compared with the conventional TDI addition methods,the proposed scheme can reduce the addition operations by half in the pixel array,which decreases the power consumption of addition circuits outside the pixel array.The timing arrangement and pixel structure are analyzed in detail.The simulation results show that the proposed pixel structure can achieve the charge addition with negligible nonlinearity,therefore the power consumption of the periphery addition circuits can be reduced by half theoretically.     

Impact shock frequency components and attenuation in rearfoot and forefoot running

BackgroundThe forefoot running footfall pattern has been suggested to reduce the risk of developing running related overuse injuries due to a reduction of impact related variables compared with the rearfoot running footfall pattern. However, only time-domain impact variables have been compared between footfall patterns. The frequency content of the impact shock and the degree to which it is attenuated may be of greater importance for injury risk and prevention than time-domain variables. Therefore, the purpose of this study was to determine the differences in head and tibial acceleration signal power and shock attenuation between rearfoot and forefoot running.MethodsNineteen habitual rearfoot runners and 19 habitual forefoot runners ran on a treadmill at 3.5 m/s using their preferred footfall patterns while tibial and head acceleration data were collected. The magnitude of the first and second head acceleration peaks, and peak positive tibial acceleration were calculated. The power spectral density of each signal was calculated to transform the head and tibial accelerations in the frequency domain. Shock attenuation was calculated by a transfer function of the head signal relative to the tibia.ResultsPeak positive tibial acceleration and signal power in the lower and higher ranges were significantly greater during rearfoot than forefoot running (p < 0.05). The first and second head acceleration peaks and head signal power were not statistically different between patterns (p > 0.05). Rearfoot running resulted in significantly greater shock attenuation for the lower and higher frequency ranges as a result of greater tibial acceleration (p < 0.05).ConclusionThe difference in impact shock frequency content between footfall patterns suggests that the primary mechanisms for attenuation may differ. The relationship between shock attenuation mechanisms and injury is not clear but given the differences in impact frequency content, neither footfall pattern may be more beneficial for injury, rather the type of injury sustained may vary with footfall pattern preference.