Extended Simplex Method

1IntroductionAsweknow,inordertosolvealinearprogrammingproblembysimplexmethodwemustfindoutaninitialbasicfeasiblesolutionofitandtransformitsconstraintequationsintoaregularform(i.e.basicvectorsisunit).Ifaproblemhasnotapparentbasicfeasiblesolution,weoftenintr…     

An Extended Particle Swarm Optimizer

1 Introduction Particle Swarm Opti mization (PSO)[1 ~3]is a novelevolutionary computation technique developed byKennedy and Eberhart . Through si mulating bird flock-ing,it has obtained success in opti mizing of continuousnonlinear functions . The main concept of this opti mizerliesin sharinginformation amongthe collaboratingindi-viduals. Paradigms of PSO are i mplemented in a fewlines of computer code andlowcomputation cost will berequired,so many research works about PSOhave beenpropos…     

Extended Spectral Responsivity Aids Artwork investigations

CEDIPInfraredSystemshaspublishedtechnicaldataestablishingtheconsiderableutilityofitsJADESWIRIRcamerasystemfortheinvestigationandvisualisationofsub surfacepreliminaryartworkonpaint ings .TheuseofIRreflectometrytonon destructivelydepthprofileandvisualisetheprimaryintentionsandtechniquesofartist’spaintingsiswellestablished .HoweveruntilnowmostIRcamerashavedemonstratedpoorperformanceatlongerwavelengthsbeyond 1 .7μm .Usinganadvanced 32 0× 2 4 0pixelTEcooledMCTdetectorarraytheJADESWI…     

Asymptotically Optimal Golay-ZCZ Sequence Sets with Flexible Length

Zero correlation zone(ZCZ) sequences and Golay complementary sequences are two kinds of sequences with different preferable correlation properties.Golay-ZCZ sequences are special kinds of complementary sequences which also possess a large ZCZ and are good candidates for pilots in OFDM systems. Known GolayZCZ sequences reported in the literature have a limitation in the length which is the form of a power of 2. In this paper, we propose two constructions of Golay-ZCZ sequence sets with new parame...     

Solutions of Minimal Period for An Extended Hamiltonian System

1　ＩｎｔｒｏｄｕｃｔｉｏｎＷｅｂｅｇｉｎｂｙｒｅｃａｌｌｉｎｇｔｈｅｄｅｆｉｎｉｔｉｏｎｏｆａＨａｍｉｌ ｔｏｎｉａｎＳｙｓｔｅｍ (ＨＳ)ｗｉｔｈ 2ｎｄｅｇｒｅｅｓｏｆｆｒｅｅｄｏｍ .Ｄｅｆｉｎｅａ 2ｎ× 2ｎｍａｔｒｉｘＪｂｙＪ =0Ｉ-Ｉ 0ＩｆＨ :Ｒ2ｎ→Ｒｉｓａｓｍｏｏｔｈｆｕｎｃｔｉｏｎ ,ｔｈｅＨＳａｓｓｏｃｉ ａｔｅｄｗｉｔｈＨｉｓｔｈｅｓｙｓｔｅｍｏｆＯＤＥ’ｓ ｘ =ＪＨ′(ｘ)Ｗｅａｒｅｉｎｔｅｒｅｓｔｅｄｉｎｆｉｎｄｉｎｇｐｅｒｉｏｄｉｃｓｏｌｕｔｉｏｎｔｏｔｈｉｓｅｑｕａｔｉｏｎ ,ｔｈａｔ…     

强大的Extended.LOG(1.13英文版)

手机是现代人工作、生活不可或缺的通信工具,手机话费也逐渐成为一笔重要的开支,理清话费对于很多人非常重要 跑营业厅打印话费详单显然不是上上策,不但劳心劳力而且明显滞后,很多手机虽然有话费计算功能,但是这些功能需要移动运营商网络支持,对于绝大多数手机用户来说形同虚设。究竟有没有一种方法让手机用户轻松、及时、准确地掌握自己的话费状况?本文将介绍四款适用于S60手机的话费计算软件,用户只要经过简单的设置以后,就能够掌握自己的话费状况。     

Extended frequency-band-decomposition sigma–delta A/D converter

Parallelism can be used to increase the bandwidths of ADC converters based on sigma–delta modulators. Each modulator converts a part of the input signal band and is followed by a digital filter. Unfortunately, solutions using bandpass sigma–delta modulators are very sensitive to the position of the modulators’ central frequencies. This paper shows the feasibility of a frequency-band-decomposition (FBD) ADC using continuous time bandpass sigma–delta modulators, even in the case of large analog mismatches. The major benefit of such a solution, called extended-frequency-band-decomposition (EFBD) is its low sensitivity to analog parameters. For example, a relative error in the central frequencies of 4% can be accepted without significant degradation in the performance (other published FBD ADCs require a precision of the central frequencies better than 0.1%). This paper will focus on the performance which can be reached with this system, and the architecture of the digital part. The quantization of coefficients and operators will be addressed. It will be shown that a 14 bit resolution can be theoretically reached using 10 sixth-order bandpass modulators at a sampling frequency of 800 MHz which results in a bandwidth of 80 MHz centered around 200 MHz (the resolution depends on the effective quality factor of the filters of the analog modulators).     

Crosstalk and Wire Length Reduction in the Non-Manhattan Channel Routing

With the recent advances in VLSI fabrication technology, the device sizes have shrunk blow 0.1 μm. Due to the scaling down of device geometry in deep-submicron technologies, the crosstalk between adjacent nets has become a major concern in high performance VLSI circuit design. Increased crosstalk can cause signal delays, logic hazards, and even malfunctioning of circuits, and thus controlling the level of crosstalk in a chip has become an important task for IC designers. It’s well known …     

Accurate Interconnection Length and Routing Channel Width Estimates for FPGAs

提出了一种新的FPGA互连预测算法,包括互连长度估计算法和通道宽度估计算法.实验结果表明,与现有算法相比,该估计算法能获得更准确的估计结果.     

Extended Virtual Boundary and Its Application in Dynamic Spectrum Allocation

This paper presents an efficient dynamic spectrum allocation （DSA） scheme in a flexible spectrum licensing environment where multiple networks coexist and interfere with each other. In particular, an extension of virtual boundary concept in DSA is proposed, which is spectrally efficient than the previous virtual boundary concept applied to donor systems only. Here, the same technique is applied to both donor and rental systems so as to further reduce the occurrences where the insertion of guard bands is obligatory and as a result provides better spectral efficiency. The proposed extension improves the spectrum utilization without any compromise on interference and fairness issues.     

Track-Oriented Marginal Poisson Multi-Bernoulli Mixture Filter for Extended Target Tracking

In this paper, we derive and propose a track-oriented marginal Poisson multi-Bernoulli mixture(TO-MPMBM) filter to address the problem that the standard random finite set filters cannot build continuous trajectories for multiple extended targets. First, the Poisson point process model and the multi-Bernoulli mixture(MBM) model are used to establish the set of birth trajectories and the set of existing trajectories, respectively.Second, the proposed filter recursively propagates the marginal asso...     

Stability Analysis of Spatiotemporally Periodic Orbits in Spatially Extended Systems

ＳｔａｂｉｌｉｔｙＡｎａｌｙｓｉｓｏｆＳｐａｔｉｏｔｅｍｐｏｒａｌｌｙＰｅｒｉｏｄｉｃＯｒｂｉｔｓｉｎＳｐａｔｉａｌｌｙＥｘｔｅｎｄｅｄＳｙｓｔｅｍｓＸｉａｏＪｉｎｇｈｕａ（ＤｅｐａｒｔｍｅｎｔｏｆＢａｓｉｃＳｃｉｅｎｃｅ，ＢｅｉｊｉｎｇＵｎｉｖｅｒ...     

Why Do Block Length and Delay Behave Differently if Feedback Is Present?

For output-symmetric discrete memoryless channels (DMCs) at even moderately high rates, fixed-block-length communication systems show no improvements in their error exponents with feedback. This paper studies systems with fixed end-to-end delay and shows that feedback generally provides dramatic gains in the error exponents. A new upper bound (the uncertainty-focusing bound) is given on the probability of symbol error in a fixed-delay communication system with feedback. This bound turns out to have a form similar to Viterbi's bound used for the block error probability of convolutional codes as a function of the fixed constraint length. The uncertainty-focusing bound is shown to be asymptotically achievable with noiseless feedback for erasure channels as well as for any output-symmetric DMC that has strictly positive zero-error capacity. Furthermore, it can be achieved in a delay-universal (anytime) fashion even if the feedback itself is delayed by a small amount. Finally, it is shown that for end-to-end delay, it is generally possible at high rates to beat the sphere-packing bound for general DMCs - thereby providing a counterexample to a conjecture of Pinsker.     

On the Extended Holstein–Hubbard Model for Epitaxial Graphene on Metal

A model that combines the extended Hubbard model involving intra-atomic and interatomic Coulomb repulsion and the Holstein model describing the interaction of a band electron with an Einstein phonon is proposed. Three regions of the phase diagram are considered. The regions correspond to the states of spin- and charge-density waves and the state uniform in spin and charge. Numerical estimations for the Rh, Ir, and Pt substrates show that Coulomb interaction plays a leading part, making possible transitions from the uniform state to the states of spin- and charge-density waves.     

Lotus推出Domino Extended Search增强Notes和Domino的知识管理功能

为了帮助用户自如驾御世界主流信息技术解决方案，有效地把信息转化为知识，迎接业已到来的知识经济的市场挑战，美国莲花（Ｌｏｔｕｓ）软件公司日前正式发布ＤｏｍｉｎｏＥｘｔｅｎｄｅｄＳｅａｒｃｈ。这是一个新的能够加强ＬｏｔｕｓＮｏｔｏｓ和Ｄｏｍｉｎｏ作为知识管理平台的产品，可以通过一个单一的访问跨越Ｎｏｔｅｓ域、企业和关系型数据存储器进行分布式的、异类的信息搜索，帮助Ｎｏｔｅｓ／Ｄｏｍｉｎｏ用户充分利用现有的基础设施，创建通用的知识驱动的应用，迅速方便地研究大量可用的信息，鉴别和回取与特定项目有关的数据…     

惠普工作站应用Acrobat 9 Pro Extended拓展专业文档共享与处理的多项功能

惠普宣布,将在中国市场上与领先的软件厂商Adobe紧密合作,从即日起为所有购买惠普台式(除HP xw4550)和移动工作站产口的用户免费提供Adobe Acrobat 9系列Pro Extended版本软件.     

Overhead line in a protected floodplain woodland – "Extended Ecology" as basis for OHL planning and maintenance

The construction of overhead lines, their maintenance, refurbishment and renewal are nowadays seen in a different light than before. Today environmental aspects are among the most challenging aspects of high concern – in every part of life. The society's point of view has changed during the last 20 years – nature and environment are now of mayor interest. In addition to techniques and science, the perception of landscape, fauna and flora is taken into consideration during the planning process of an OHL. We call this "Extended Ecology". The project presented here for the replacement of a 220 kV overhead line which will run along an existing OHL corridor through a floodplain woodland in a nature protective zone is a good example for the new approach. To create harmony between ecology and economy is a precondition of the project. The responsible and careful treatment of the existing OHL corridor during the last few years has resulted in an improvement of conditions. In only a few years the number of endangered species living in these areas and listed on the "Red Data Lists" has increased from 23 to 40. The city of Linz is the capital of the Region "Upper Austria" and is Austria's centre for heavy metal industry with European dimensions (e.g.VOEST Alpine). The city is also well-known for advanced technologies and recently for modern arts (ars electronica, Klangwolke, European Cultural Capital 2009). The expansion of the industry and of dwelling areas reduced and endangered the natural environment; therefore – and as a logical compromise – several areas were nominated as natural protective zones. Existing overhead lines run through some of these, and some of them need to be uprated. Two parallel 110 kV OHL run through the protected floodplain woodland of "Donau-Traun-Auen". One of them was built in the 1940ies and needs to be rebuilt as a 220 kV line. Since 2006 ecological treatment techniques have been in practice in these corridors. This area originally showed a pattern of degraded nutrient-poor alluvial meadows, rich in invasive neophytes, fragments of semi-dry calcareous-grassland, tiny large sedge or reed beds in moist depressions and large short rotation coppice woodland. During the last years additional ecological compensation measures have been implemented: ponds have been created and open gravel areas generated by construction measures have been re-vegetated taking into account the soil seed bank and using proved techniques of nature conservation. Significant success can be reported after only a few years of subtle treatment techniques aimed at optimal development of target vegetation. The typical composition of plant species could be restored in core areas of nutrient-poor alluvial meadows. The number of species enumerated in "Red Data Lists" has increased from 23 to 40, including highly endangered plants demanding moderate disturbance regimes. If ecological treatment is continued, further increase of environmental conservation value in the corridor can be expected.     

On the Effects of Frequency Scaling Over Capacity Scaling in Underwater Networks—Part I: Extended Network Model

In this two-part paper, information-theoretic capacity scaling laws are analyzed in an underwater acoustic network with n regularly located nodes on a square, in which both bandwidth and received signal power can be limited significantly. Parts I and II deal with an extended network of unit node density and a dense network of unit area, respectively. In both cases, a narrow-band model is assumed where the carrier frequency is allowed to scale as a function of n, which is shown to be crucial for achieving the order optimality in multi-hop (MH) mechanisms. We first characterize an attenuation parameter that depends on the frequency scaling as well as the transmission distance. Upper and lower bounds on the capacity scaling are then derived. In Part I, we show that the upper bound on capacity for extended networks is inversely proportional to the attenuation parameter, thus resulting in a highly power-limited network. Interestingly, it is shown that the upper bound is intrinsically related to the attenuation parameter but not the spreading factor. Furthermore, we propose an achievable communication scheme based on the nearest-neighbor MH transmission, which is suitable due to the low propagation speed of acoustic channel, and show that it is order-optimal for all operating regimes of extended networks. Finally, these scaling results are extended to the case of random node deployments providing fundamental limits to more complex scenarios of extended underwater networks.     

The Influence of 0–0.1 wt.% Ni on the Microstructure and Fluidity Length of Sn-0.7Cu-<Emphasis Type="Italic">x</Emphasis>Ni

Alloys based on the Sn-0.7Cu-xNi system are potential Pb-free solders. In this paper we report on the solidification characteristics and microstructures of Sn-0.7Cu alloys containing 0–1,000 ppm nickel. The microstructural observations show that increasing the nickel content reduces the volume fraction of primary Sn, thus generating a more-eutectic microstructure. In an attempt to better understand the changes in solderability with Ni additions, fluidity tests were carried out using the Ragone method for small incremental increases in nickel content. The maximum fluidity length was found to vary strongly with nickel content. Additionally, the distribution of nickel within samples was investigated using synchrotron micro X-ray fluorescence.     

Fabrication of Metal–Oxide–Diamond Field-Effect Transistors with Submicron-Sized Gate Length on Boron-Doped (111) H-Terminated Surfaces Using Electron Beam Evaporated SiO<Subscript>2</Subscript> and Al<Subscript>2</Subscript>O<Subscript>3</Subscript>

A H-terminated surface conductive layer of B-doped diamond on a (111) surface was used to fabricate a metal–oxide–semiconductor field-effect transistor (MOSFET) using an electron beam evaporated SiO₂ or Al₂O₃ gate insulator and a Cu-metal stacked gate. When the bulk carrier concentration was approximately 10¹⁵/cm³ and the B-doped diamond layer was 1.5 μm thick, the surface carrier mobility of the H-terminated surface on the (111) diamond before FET processing was 35 cm²/Vs and the surface carrier concentration was 1.5 × 10¹³/cm². For the SiO₂ gate (0.76 μm long and 50 μm wide), the maximum measured drain current at a gate voltage of −3.0 V was −75 mA/mm and the maximum transconductance was 24 mS/mm, and for the Al₂O₃ gate (0.64 μm long and 50 μm wide), these features were −86 mA/mm and 15 mS/mm, respectively. These values are among the highest reported direct-current (DC) characteristics for a diamond homoepitaxial (111) MOSFET.