卷取机助卷辊打开条件的研究

较详细的论述了卷取机助卷辊打开的条件,深入细致的分析研究卷筒在卷取过程中的受力情况,论述了卷筒从助卷辊助卷到形成张力卷取过程中的理论依据。     

雪茄烟外包叶的研究进展

介绍了雪茄烟的发展历程和目前发展状况,阐述了国内外对雪茄烟外包叶的研究进展,分析了我国发展雪茄烟外包叶的前景和开展相关研究的必要性和可行性,展望了雪茄烟外包叶的研究方向。     

钢卷卷取助卷器影响酸洗钢生产的故障分析

武钢酸洗轧机联合机组为生产酸洗钢而增加了涂油功能,导致助卷器出现震动、噪声及皮带辊轴承易烧毁等问题。对产生上述问题的原因进行了分析,并提出了相应的解决办法。通过对卷取机扩径瓦的改进、皮带辊子轴承及皮带的改型,使得酸洗钢得以正常生产。     

一种快速的特征选择框架和方法

针对特征选择过程中准确率和计算效率不平衡问题,提出了一种快速特征选择框架（FFFS）.基于该框架,使用最小冗余最大相关方法（MRMR）选择候选特征,借助序列前向选择方法（SFS）验证性能,并通过限定迭代次数提高计算性能.与MRMR、SFS和混合序列浮动前向选择算法（FDHSFFS）的对比实验结果表明,提出的快速特征选择算法MRMR-SFS能在预测准确率和计算效率之间取得较好的平衡.     

面向田间籽棉成熟度判别的二种特征选择算法比较

为了快速、准确地判别田间籽棉的成熟度,提取了描述棉瓣形状的15个结构特征,基于10折交叉验证比较了封装器下穷举搜索并基于封装器停止搜索(WE-W)和过滤器下启发式搜索并基于封装器停止搜索(FH-W)这二种特征选择算法的执行效率和分类性能.分别以验证集上Bayes分类器的误分率(WE-W)和训练集上的类可分性测量值(FH-W)为评价函数,在训练集上穷举搜索(WE-W)和启发式搜索(FH-W)最优l维特征子集,l=1,2,…,15,并于Bayes分类器在验证集上的平均误分率极小时停止搜索(WE-W和FH-W).结果显示,WE-W和FH-W算法在预测集上于l=3处分别获得了85.39％ (WE-W)和85.28％ (FH-W)的平均识别率,表明FH-W算法执行效率高、分类性能好,对实际应用有参考意义.     

Effect of modified tapioca starch and xanthan gum on low temperature texture stability and dough viscoelasticity of a starch-based food gel

This work investigated the effect of modified tapioca starch and xanthan gum on dough viscoelasticity and texture stability during storage at 4 °C of starch sheets for Chinese shrimp dumplings. Hydroxypropylated starch and hydroxypropylated-crosslinked starch were used to substitute for tapioca starch in the control formulation, and xanthan gum was added to adjust the formulation. During storage, texture of the control became firmer due to amylopectin retrogradation confirmed by differential scanning calorimetry and X-ray diffraction. Conversely, gel sheets containing modified starches showed less texture change. Dough viscoelasticity of the formulations substituted by hydroxypropylated starch were much softer and easier to deform than that of the control one. Dough with hydroxypropylated-crosslinked starch was, however, stiffer and more strain-resistant. Moreover, the formulation comprising the mixture of both types of modified starches and xanthan gum gave dough viscoelasticity similar to that of the control, and provided gel sheet the least texture change. Consequently, this modified formulation could be beneficial for the application of frozen/chilled dumpling wrappers.     

HIBI Communication Network for System-on-Chip

This paper presents a communication network targeted for complex system-on-chip (SoC) and network-on-chip (NoC) designs. The Heterogeneous IP Block Interconnection (HIBI) aims at maximum efficiency and minimum energy per transmitted bit combined with quality-of-service (QoS) in transfers. Other features include support for hierarchical topologies with several clock domains, flexible scalability, and runtime reconfiguration of network parameters. HIBI is intended for integrating coarse-grain components such as intellectual property (IP) blocks that have size of thousands of gates.HIBI has been implemented in VHDL and SystemC and synthesized on several CMOS technologies and on FPGA. A 32-bit wrapper requires 5400 gates and runs with 315 MHz on 0.18 μ m technology which shows that only minimal area overhead is paid for the advanced features. The area and frequency results are well comparable to other NoC proposals.Furthermore, data transfers are shown to approach the maximum theoretical performance for protocol efficiency. HIBI network is accompanied with a design framework with tools for optimizing the system through automated design space exploration. Erno Salminen Tampere University of Technology (TUT), Finland.Currently he is working towards his PhD degree in the Institute of Digital and Computer Systems (DCS) at TUT. His main research interests are digital systems design and communication issues in SoCs. Tero KangasTampere University of Technology (TUT), Finland.Since 1999 he has been working as a research scientist in the Institute of Digital and Computer Systems (DCS) at TUT. Currently he is working towards his PhD degree and his main research topics are system architectures and SoC design methodologies in multimedia applications. Timo D. H?m?al?ainen Tampere University of Technology (TUT), Finland. He was nominated to full professor at TUT/Institute of Digital and Computer Systems in 2001. He heads the DACI research group that focuses on three main research areas: wireless sensor networks, high-performance multi-DSP and hardware based video encoding, and design flow tools for heterogeneous MP-SoC platforms. Jouni Riihi?mki Tampere University of Technology (TUT), Finland. Currently he is working as a senior design engineer at Nokia Technlogy Platforms. He is also working towards his PhD degree. His research interests include SoC design and verification methodologies. Vesa Lahtinen received his M.Sc. and Ph.D. from TUT in 1998 and 2004, respectively. In TUT, his main research areas were system-on-chips and their interconnects. Currently, Dr. Lahtinen is a Senior Research Engineer in the Computing Architectures Laboratory of Nokia Research Center (NRC) concentrating on architecture modeling and, specifically, memory architectures. Kimmo Kuusilinna Tampere University of Technology (TUT), Finland. His main research interests include system-level design and verification, on-chip interconnections, and parallel memories. Currently he is working as a senior research engineer at the Nokia Research Center.     

热轧板厂夹送辊和助卷辊表面强化技术研究

针对夹送辊和助卷辊的使用寿命低的现状，选择PYY125管状焊丝＋SSD焊剂作为堆焊材料，采用合适的堆焊工艺对夹送辊和助卷辊进行堆焊，经现场使用，其过钢量分别达到26．5万t和35．4万t以上，大幅度提高了夹送辊和助卷辊的使用寿命，减少了粘钢现象。     

与安全检查有关的包装材料的太赫兹谱实验研究

报道了利用太赫兹技术对七种包装材料的实验研究,通过分析其吸收系数曲线和折射 率曲线,讨论了太赫兹辐射对这七种包装材料的透射特性。实验结果表明太赫兹辐射对大多数包装材料有很高的透射特性,可以作为在安全检查领域中的一项有效手段。     

涂覆式桥丝电点火头的研究

为了提高普通点火头发火参数的精度，可以在桥丝上涂覆一层硝化棉或羧甲基纤维素的涂层。这个涂层一方面可以与桥丝均匀的结合，另一方面可以改善点火药与桥丝间的接触和点火状态。试验证明，这种涂覆式桥丝电点火头的电发火参数和发火时间的精度均有所提高。