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TENCON 2010 - 2010 IEEE Region 10 Conference最新文献

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Tool support for domain analysis of the software specification in natural language 以自然语言对软件规范进行领域分析的工具支持
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686435
Y. Omori, K. Araki
Most software specifications are discussed on natural language among stakeholders. There is, however, a semantic gap between natural language and programming language, which sometime causes discrepancies between them and misunderstanding among stakeholders. Formal language compensates the gap so that realizes early verification in software development process. We developed a dictionary tool to support the translation from natural language to formal language. The tool provides functionalities those are easy registration of keywords to the dictionary and exhaustive marking of the keywords. The dictionary represents a map between equivalent keywords in natural language and formal language which gives defined semantics, and the tool enhance the coverage of the keywords in the formal specification. In short, the dictionary contains conceptual keywords and specific semantics in the problem; therefore, it corresponds to a domain of the system. A system generally belongs to multi problem domains and also contains multi sub domains, consequently some dictionaries should be dynamically alternated through the translation process. APIs related to dictionary operation are proposed and verified in this paper, and the dictionary class is introduced to map the relation among domains.
大多数软件规范是在涉众之间用自然语言进行讨论的。然而,自然语言和编程语言之间存在语义差距,有时会导致它们之间的差异和利益相关者之间的误解。形式语言弥补了这一缺陷,从而实现了软件开发过程中的早期验证。我们开发了一个字典工具来支持从自然语言到形式语言的翻译。该工具提供的功能包括将关键字轻松注册到字典和对关键字进行详尽标记。字典表示自然语言和形式语言中等效关键字之间的映射,给出了定义的语义,该工具增强了形式规范中关键字的覆盖范围。简而言之,字典包含问题中的概念关键词和特定语义;因此,它对应于系统的一个定义域。一个系统通常属于多个问题域,也包含多个子域,因此有些字典在翻译过程中需要动态交替。本文提出并验证了与字典操作相关的api,并引入字典类来映射域间的关系。
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引用次数: 1
Control of vortex chirality in polygonal nanomagnets 多边形纳米磁体涡旋手性的控制
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686386
M. Miyata, S. Yakata, M. Hara, H. Wada, T. Kimura
We have proposed a method for controlling the vortex chirality in a regular polygonal nanomagnet with an odd number of sides using an in-plane magnetic field. We confirmed the reliability of the proposed method in the triangle, pentagonal and heptagonal nanomagnets by using micromagnetic simulation. However, when the number of the sides is 9 or more, the chirality does not change systematically because of the insufficient in-plane shape anisotropy. Stabilizations of a single vortex in polygonal nanomagnets with an even number of sides have been also investigated.
提出了一种利用面内磁场控制奇数边正多边形纳米磁体涡旋手性的方法。通过微磁仿真验证了该方法在三角形、五角形和七角形纳米磁体上的可靠性。然而,当侧数为9或更多时,由于面内形状各向异性不足,手性不会发生系统变化。本文还研究了偶数边多边形纳米磁体中单涡的稳定性。
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引用次数: 1
Deposition profiles of microcrystalline silicon films using multi-hollow discharge plasma CVD 多空心放电等离子体CVD沉积微晶硅薄膜的研究
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686679
T. Matsunaga, Y. Kawashima, K. Koga, K. Nakahara, W. M. Nakamura, G. Uchida, N. Itagaki, D. Yamashita, Hidefumi Matsuzaki, M. Shiratani
We have studied deposition profiles of micro crystalline silicon (μc-Si) films using a multi-hollow discharge plasma CVD method, by which contribution of SiH3 and H to deposition varies with the distance between the substrate and discharge region. Under high pressure (6 Torr) depletion condition, crystalline films were deposited in a region near the discharges and the higher crystallinity was obtained at the closer to the discharges. Films of 0.6 in crystallinity ΦC were deposited in a very narrow region between 4 and 5 mm from the discharges. The process window of good quality μc-Si films is very narrow. These results indicate the multi-hollow discharge plasma CVD method allows us to optimize deposition conditions easier than the conventional deposition methods.
采用多空心放电等离子体CVD方法研究了微晶硅(μc-Si)薄膜的沉积特征,SiH3和H对沉积的贡献随衬底与放电区域的距离而变化。在高压(6 Torr)耗尽条件下,晶体膜沉积在靠近放电的区域,越靠近放电,结晶度越高。结晶度为0.6 ΦC的薄膜沉积在距离放电点4到5毫米的非常狭窄的区域。制备高质量μc-Si薄膜的工艺窗口非常窄。这些结果表明,与传统的沉积方法相比,多空心放电等离子体CVD方法可以更容易地优化沉积条件。
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引用次数: 0
Growth stimulation of radish sprouts using discharge plasmas 放电等离子体刺激萝卜芽生长
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686474
S. Kitazaki, D. Yamashita, Hidefumi Matsuzaki, G. Uchida, K. Koga, M. Shiratani, N. Hayashi
We have investigated growth stimulation of radish sprouts using nonthermal atmospheric pressure He discharge plasmas and low pressure O2 RF discharge plasmas. Seeds of radish sprouts were irradiated by one of these plasmas. After 7 days cultivation, the average length of sprouts with irradiation was 15–60 % longer than those without irradiation. Reactive oxygen species may be involved in the growth stimulation mechanism.
研究了非热常压He放电等离子体和低压O2射频放电等离子体对萝卜芽生长的刺激作用。萝卜芽的种子被其中一个等离子体照射。培养7 d后,经辐照处理的芽平均长度比未辐照处理的芽长15 ~ 60%。活性氧可能参与了刺激生长的机制。
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引用次数: 2
Cooperative MPR selection to reduce topology control packets in OLSR 协同MPR选择减少拓扑控制报文
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686013
Kenji Yamada, T. Itokawa, T. Kitasuka, M. Aritsugi
In this paper, we try to reduce the amount of control traffic of the optimized link state routing protocol (OLSR). OLSR is a proactive routing protocol for mobile ad-hoc networks (MANETs). OLSR is known well as a low control traffic routing protocol, since it adopts multipoint relays (MPRs). MPRs concept significantly reduces the number of broadcast messages during the flooding process. Although MPR concept is optimal for each node to transmit its messages to all two hop neighbors, we show there are still redundant control messages which can be piggybacked with other control messages in dense networks. This redundancy is caused by the selection procedure of MPRs, which run on each node independently of its neighbor nodes. In this paper, we propose a cooperative MPR selection procedure, to increase messages which are piggybacked into a single control packet. Through simulation, we demonstrate that the proposed cooperative MPR selection procedure reduces the number of routing packets in high-density network, and network reachability is kept similar to that of the conventional MPR selection procedure.
在本文中,我们试图减少优化的链路状态路由协议(OLSR)的控制流量。OLSR是移动自组织网络(manet)的主动路由协议。OLSR是一种低控制流量路由协议,因为它采用了多点中继(MPRs)。MPRs概念显著减少了泛洪过程中广播消息的数量。尽管MPR概念对于每个节点将其消息发送到所有两个跳邻居是最优的,但我们表明在密集网络中仍然存在冗余控制消息,这些控制消息可以与其他控制消息一起承载。这种冗余是由mpr的选择过程引起的,mpr在每个节点上独立于其邻居节点运行。在本文中,我们提出了一个合作的MPR选择过程,以增加承载到单个控制包中的消息。仿真结果表明,本文提出的协同MPR选择过程减少了高密度网络中路由数据包的数量,并保持了与传统MPR选择过程相似的网络可达性。
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引用次数: 35
Keynote speech I: Fluctuation control for plasma nanotechnologies 主题演讲一:等离子体纳米技术的波动控制
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5685920
M. Shiratani, K. Koga, G. Uchida, N. Itagaki, K. Kamataki
Recent progress in nano-materials has made them attractive for an increasing number of their applications such as electronics, medical components, fillers, catalysts, and fuel cells. Nanomaterials need structures and components which exhibit novel and significantly improved physical, chemical and biological properties, because of their nanoscale size, and hence fabrication of nanomaterials by bottom-up processes as well as that by top-down ones are required. A wide variety of nano-material and nano-system fabrication methods are required to be developed to realize complex nano-world. Plasma-based fabrication of nanomaterials and nanostructures is widely employed for top-down processes such as ULSI fabrication as well as bottom-up processes such as carbon nanotube production. We are exploring frontier science of interactions between plasmas and nano-interfaces by focusing on novel features such as fluctuations of interactions due to the nanometer scale. Plasma processing based on the science realizes highly precise top-down processes by suppressing fluctuations and well controlled self-organized bottom-up processes by controlling fluctuations. We aim to bring about an explosive development of fabrication technologies of nanomaterials and nanostructures.
纳米材料的最新进展使其在电子、医疗部件、填料、催化剂和燃料电池等领域的应用越来越广泛。纳米材料由于其纳米级的尺寸,需要具有新颖和显著改善的物理、化学和生物特性的结构和组件,因此需要自下而上和自上而下的纳米材料制造工艺。为了实现复杂的纳米世界,需要发展各种各样的纳米材料和纳米系统的制造方法。基于等离子体的纳米材料和纳米结构制造广泛应用于自顶向下的工艺,如ULSI制造,以及自底向上的工艺,如碳纳米管生产。我们正在探索等离子体和纳米界面之间相互作用的前沿科学,重点关注纳米尺度下相互作用的波动等新特征。基于科学的等离子体加工通过抑制波动实现了自上而下的高精度过程,通过控制波动实现了自下而上的可控自组织过程。我们的目标是带来纳米材料和纳米结构制造技术的爆炸性发展。
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引用次数: 0
Window mode filter for image denoising 用于图像去噪的窗口模式滤波器
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686026
Chang Jian, K. Urahama
We formulate the window mode filter (WMF) which is an extension of the point-wise mode filter to windowed version. We then derive from the WMF the window-weighted bilateral filter (WWBF) which is different from the previously presented window bilateral filter (WBF). We demonstrate with experiments that the WWBF outperforms WBF for images contaminated with Gaussian noises and those with mixed Gaussian and impulsive noises. We also show that the PSNR of iterated WWBF is always larger than the iterated WBF.
我们提出了窗口模式滤波器(WMF),它是逐点模式滤波器到窗口版本的扩展。然后,我们从WMF中推导出与之前提出的窗口双边滤波器(WBF)不同的窗口加权双边滤波器(WWBF)。实验表明,对于高斯噪声污染的图像以及高斯噪声和脉冲噪声混合的图像,该方法的性能优于小波基。我们还证明了迭代WBF的PSNR总是大于迭代WBF。
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引用次数: 0
Image and video clipping by weighted histogram intersection minimization 图像和视频的加权直方图交集最小化裁剪
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686033
K. Inoue, K. Hara, K. Urahama
We propose a method for clipping a rectangular region from an image by minimizing a weighted intersection of two color histograms which are constructed with pixels included in the inside and the outside of the rectangular region. Furthermore, we extend the clipping method for images to that for videos. Experimental results show that the proposed method can clip the regions of objects from images and remove the regions of backgrounds.
我们提出了一种从图像中裁剪矩形区域的方法,该方法通过最小化两个颜色直方图的加权相交,这两个直方图由矩形区域的内部和外部包含的像素组成。此外,我们将图像的裁剪方法扩展到视频的裁剪方法。实验结果表明,该方法可以有效地从图像中截取目标区域,去除背景区域。
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引用次数: 1
High-frequency signal transmission characteristics of coplanar waveguides with cone bump interconnections 锥凸互连共面波导的高频信号传输特性
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686711
A. Ikeda, K. Kajiwara, N. Watanabe, T. Asano
We evaluated high frequency signal transmission characteristics of coplanar waveguides fabricated using cone bump interconnections on flip-chip bonded surfaces. The signal insertion loss (S21 parameter) increased with the number of bump interconnections. At 40 GHz, the signal insertion loss due to the bump interconnections was 0.017 dB / bump. This value was small enough for application to most radio-frequency devices. Besides, the bump interconnections did not alter the characteristic impedance of the waveguide from the designed even at 40 GHz. The results indicate that the cone bump offers high-frequency signal data transmission lines for chip-stack integration of LSIs.
我们评估了在倒装晶片粘合表面上使用锥凸互连制作的共面波导的高频信号传输特性。信号插入损耗(S21参数)随着凹凸连接次数的增加而增加。在40 GHz时,由于凹凸互连引起的信号插入损耗为0.017 dB /凹凸。这个值足够小,适用于大多数射频设备。此外,即使在40ghz时,凹凸互连也不会改变设计波导的特性阻抗。结果表明,锥突为lsi的芯片堆栈集成提供了高频信号数据传输线。
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引用次数: 1
The effect of TMS to supramarginal gyrus on event-related potential P300 经颅磁刺激对脑缘上回事件相关电位P300的影响
Pub Date : 2010-12-01 DOI: 10.1109/TENCON.2010.5686122
A. Matsunaga, K. Nojima, M. Iwahashi, Y. Katayama, K. Iramina
In this study we investigated the effect of the single pulse transcranial magnetic stimulation (TMS) and repetitive TMS (rTMS) to the supramarginal gyrus (SMG) on an event related potential (ERP) which is called P300. By applying the Oddball task which gives 2 easily distinguishable types of stimuli, the P300, one of the ERP can be observed. Former studies reported that left SMG is related to the origin of P300. In Experiment 1, TMS is applied to the SMG after 150ms, 200ms, and 250ms from presentation of audio-stimuli. By comparing the P-values, the effect of the TMS applied to the left SMG was larger. In Experiment 2, rTMS (100 stimuli with 1Hz) is applied to the SMG. We measured the P300 response before and after rTMS. By comparing the latency and amplitude of P300, latency was confirmed to increase when applied to the left SMG. However, there was no difference of amplitude of P300.
在这项研究中,我们研究了单脉冲经颅磁刺激(TMS)和重复经颅磁刺激(rTMS)对边缘上回(SMG)事件相关电位(ERP) P300的影响。通过应用奇球任务,它给出了两种容易区分的刺激类型,P300,可以观察到ERP的一种。既往研究报道左SMG与P300的起源有关。在实验1中,分别在音频刺激出现150ms、200ms和250ms后对SMG进行经颅磁刺激。比较p值可知,经颅磁刺激作用于左侧SMG的效果更大。在实验2中,rTMS(100个1Hz的刺激)应用于SMG。我们测量了rTMS前后的P300反应。通过比较P300的潜伏期和振幅,证实了在左侧SMG作用时潜伏期增加。P300的幅值无明显差异。
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引用次数: 1
期刊
TENCON 2010 - 2010 IEEE Region 10 Conference
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