WorldWideScience

Sample records for based window selection

  1. Window-Based Example Selection in Learning Vector Quantization

    OpenAIRE

    Witoelar, A. W.; Ghosh, Anarta; De Vries, J.J.G.; Hammer, B; Biehl, M.

    2010-01-01

    A variety of modifications have been employed to learning vector quantization (LVQ) algorithms using either crisp or soft windows for selection of data. Although these schemes have been shown in practice to improve performance, a theoretical study on the influence of windows has so far been limited. Here we rigorously analyze the influence of windows in a controlled environment of gaussian mixtures in high dimensions. Concepts from statistical physics and the theory of online learning allow a...

  2. Optimal energy window selection of a CZT-based small-animal SPECT for quantitative accuracy

    Energy Technology Data Exchange (ETDEWEB)

    Park, Su-Jin [Department of Radiological Science and Research Institute of Health Science, Yonsei University, Wonju 220-710 (Korea, Republic of); Yu, A. Ram [Laboratory animal center, OSONG Medical Innovation Foundation, Chunguk 363-951 (Korea, Republic of); Department of Nuclear Medicine, College of Medicine, Hanyang University Hospital, Seoul 133-792 (Korea, Republic of); Choi, Yun Young [Department of Nuclear Medicine, College of Medicine, Hanyang University Hospital, Seoul 133-792 (Korea, Republic of); Kim, Kyeong Min [Molecular Imaging Research Center, Korea Institute of Radiological and Medical Sciences, Seoul 139-706 (Korea, Republic of); Kim, Hee-Joung, E-mail: hjk1@yonsei.ac.kr [Department of Radiological Science and Research Institute of Health Science, Yonsei University, Wonju 220-710 (Korea, Republic of)

    2015-05-11

    Cadmium zinc telluride (CZT)-based small-animal single-photon emission computed tomography (SPECT) has desirable characteristics such as superior energy resolution, but data acquisition for SPECT imaging has been widely performed with a conventional energy window. The aim of this study was to determine the optimal energy window settings for technetium-99 m ({sup 99m}Tc) and thallium-201 ({sup 201}Tl), the most commonly used isotopes in SPECT imaging, using CZT-based small-animal SPECT for quantitative accuracy. We experimentally investigated quantitative measurements with respect to primary count rate, contrast-to-noise ratio (CNR), and scatter fraction (SF) within various energy window settings using Triumph X-SPECT. The two ways of energy window settings were considered: an on-peak window and an off-peak window. In the on-peak window setting, energy centers were set on the photopeaks. In the off-peak window setting, the ratios of energy differences between the photopeak from the lower- and higher-threshold varied from 4:6 to 3:7. In addition, the energy-window width for {sup 99m}Tc varied from 5% to 20%, and that for {sup 201}Tl varied from 10% to 30%. The results of this study enabled us to determine the optimal energy windows for each isotope in terms of primary count rate, CNR, and SF. We selected the optimal energy window that increases the primary count rate and CNR while decreasing SF. For {sup 99m}Tc SPECT imaging, the energy window of 138–145 keV with a 5% width and off-peak ratio of 3:7 was determined to be the optimal energy window. For {sup 201}Tl SPECT imaging, the energy window of 64–85 keV with a 30% width and off-peak ratio of 3:7 was selected as the optimal energy window. Our results demonstrated that the proper energy window should be carefully chosen based on quantitative measurements in order to take advantage of desirable characteristics of CZT-based small-animal SPECT. These results provided valuable reference information for the

  3. Gaussian-weighted moving-window robust automatic threshold selection

    NARCIS (Netherlands)

    Wilkinson, Michael H.F.; Petkov, N; Westenberg, MA

    2003-01-01

    A multi-scale, moving-window method for local thresholding based on Robust Automatic Threshold Selection (RATS) is developed. Using a model for the noise response of the optimal edge detector in this context, the reliability of thresholds computed at different scales is determined. The threshold com

  4. Material selection for spallation neutron source windows

    Energy Technology Data Exchange (ETDEWEB)

    Sordo, F. [ETSII/Universidad Politecnica de Madrid, J. Gutierrez Abascal, 2-28006 Madrid (Spain); Abanades, A. [ETSII/Universidad Politecnica de Madrid, J. Gutierrez Abascal, 2-28006 Madrid (Spain)], E-mail: abanades@etsii.upm.es; Lafuente, A.; Martinez-Val, J.M. [ETSII/Universidad Politecnica de Madrid, J. Gutierrez Abascal, 2-28006 Madrid (Spain); Perlado, M. [Instituto de Fusion Nuclear (DENIM)/ETSII/Universidad Politecnica, Madrid, J. Gutierrez Abascal, 2-28006 Madrid (Spain)

    2009-11-15

    High performance neutron sources are being proposed for many scientific and industrial applications, ranging from material studies, hybrid reactors and transmutation of nuclear wastes. In the case of transmutation of nuclear wastes, accelerator driven systems (ADS) are considered as one of the main technical options for such purpose. In ADS a high performance spallation neutron source becomes an essential element for its operation and control. This spallation source must fulfil very challenging nuclear and thermo-mechanical requirements, because of the high neutron rates needed in ADS. The material selection for this key component becomes of paramount importance, particularly the source window that separates the vacuum accelerator tube from the spallation material where the accelerated protons impinge. In this paper, an integral analysis of spallation sources is done, taking as a reference the projects in this field proposal in the framework of European projects. Our analysis and calculations show that titanium and vanadium alloys are more suitable than steel as structural material for an industrial ADS beam window, mostly due to its irradiation damage resistance.

  5. Measure Guideline. Energy-Efficient Window Performance and Selection

    Energy Technology Data Exchange (ETDEWEB)

    Carmody, John [Univ. of Minnesota, St. Paul, MN (United States). NorthernSTAR; Haglund, Kerry [Univ. of Minnesota, St. Paul, MN (United States). NorthernSTAR

    2012-11-01

    This document provides guidelines for the selection of energy-efficient windows in new and existing residential construction in all U.S. climate zones. It includes information on window products, their attributes and performance. It provides cost/benefit information on window energy savings as well as information on non-energy benefits such as thermal comfort and reduced HVAC demands. The report also provides information on energy impacts of design decisions such as window orientation, total glazing area and shading devices and conditions. Information on resources for proper window installation is included as well.

  6. Selecting Glass Window with Film for Buildings in a Hot Climate

    OpenAIRE

    Nopparat Khamporn; Somsak Chaiyapinunt

    2009-01-01

    This article is about the developing parameters and relationships for selecting a proper glass window applied with film as building envelopes for buildings located in a hot climate based on its thermal performances. Thermal comfort of the occupants sitting near the glass window is the thermal performance that needed to be considered besides the heat transmission in selecting a proper type of glass to use as a glass window for the building. The predicted percentage of dissatisfied (PPD) is cho...

  7. Measure Guideline: Energy-Efficient Window Performance and Selection

    Energy Technology Data Exchange (ETDEWEB)

    Carmody, J.; Haglund, K.

    2012-11-01

    This document provides guidelines for the selection of energy-efficient windows in new and existing residential construction in all US climate zones. It includes information on window products, their attributes and performance. It provides cost/benefit information on window energy savings as well as information on non-energy benefits such as thermal comfort and reduced HVAC demands. The document also provides information on energy impacts of design decisions such as window orientation, total glazing area and shading devices and conditions. Information on resources for proper window installation is included as well. This document is for builders, homeowners, designers and anyone making decisions about selecting energy efficient window. It is intended to complement other Building America information and efforts.

  8. Memristor model based on fuzzy window function

    OpenAIRE

    Abdel-Kader, Rabab Farouk; Abuelenin, Sherif M.

    2016-01-01

    Memristor (memory-resistor) is the fourth passive circuit element. We introduce a memristor model based on a fuzzy logic window function. Fuzzy models are flexible, which enables the capture of the pinched hysteresis behavior of the memristor. The introduced fuzzy model avoids common problems associated with window-function based memristor models, such as the terminal state problem, and the symmetry issues. The model captures the memristor behavior with a simple rule-base which gives an insig...

  9. Selecting Glass Window with Film for Buildings in a Hot Climate

    Directory of Open Access Journals (Sweden)

    Nopparat Khamporn

    2009-02-01

    Full Text Available This article is about the developing parameters and relationships for selecting a proper glass window applied with film as building envelopes for buildings located in a hot climate based on its thermal performances. Thermal comfort of the occupants sitting near the glass window is the thermal performance that needed to be considered besides the heat transmission in selecting a proper type of glass to use as a glass window for the building. The predicted percentage of dissatisfied (PPD is chosen as a thermal comfort index. 45 types of film and 1280 glass windows with film are investigated in this study. It can be shown that the thermal comfort index is dependent on the optical properties (total transmittance and total absorptance and the overall heat transfer coefficient of glass windows with film. Glass window with film which has high transmittance shall have more discomfort due to solar radiation effect. Glass window with film which has high absorptance shall have more discomfort due to surface temperature effect. The discomfort from the surface temperature effect for double pane glass window with film is also dependent on the glass thickness other than the absorptance and the change in overall heat transfer coefficient. Expressions for predicting the performance of the glass windows with film in terms of thermal comfort are developed.

  10. The Use of Variable Q1 Isolation Windows Improves Selectivity in LC-SWATH-MS Acquisition.

    Science.gov (United States)

    Zhang, Ying; Bilbao, Aivett; Bruderer, Tobias; Luban, Jeremy; Strambio-De-Castillia, Caterina; Lisacek, Frédérique; Hopfgartner, Gérard; Varesio, Emmanuel

    2015-10-01

    As tryptic peptides and metabolites are not equally distributed along the mass range, the probability of cross fragment ion interference is higher in certain windows when fixed Q1 SWATH windows are applied. We evaluated the benefits of utilizing variable Q1 SWATH windows with regards to selectivity improvement. Variable windows based on equalizing the distribution of either the precursor ion population (PIP) or the total ion current (TIC) within each window were generated by an in-house software, swathTUNER. These two variable Q1 SWATH window strategies outperformed, with respect to quantification and identification, the basic approach using a fixed window width (FIX) for proteomic profiling of human monocyte-derived dendritic cells (MDDCs). Thus, 13.8 and 8.4% additional peptide precursors, which resulted in 13.1 and 10.0% more proteins, were confidently identified by SWATH using the strategy PIP and TIC, respectively, in the MDDC proteomic sample. On the basis of the spectral library purity score, some improvement warranted by variable Q1 windows was also observed, albeit to a lesser extent, in the metabolomic profiling of human urine. We show that the novel concept of "scheduled SWATH" proposed here, which incorporates (i) variable isolation windows and (ii) precursor retention time segmentation further improves both peptide and metabolite identifications. PMID:26302369

  11. Explicit window-based transport control protocols in lossy environments

    OpenAIRE

    de Vleeschouwer, C.; Frossard, P.

    2004-01-01

    This paper addresses efficient packet loss recovery by retransmission in window-based congestion control protocols. It builds on explicit congestion control mechanisms to decouple the packet loss detection from the congestion feedback signals. Implicit algorithms alternatively infer congestion from losses (which yields to window size reduction), and therefore do not allow to evaluate the performance of window-based transmission algorithms in lossy environments. We first propose a simple modif...

  12. Energy performance of windows based on the net energy gain

    DEFF Research Database (Denmark)

    Svendsen, Svend; Kragh, Jesper; Laustsen, Jacob Birck

    2005-01-01

    orientation or averaged over different orientations. The averaged value may be used for energy labeling of windows of standard size. Requirements in building codes may also be based on the net energy gain instead of the thermal transmittance of the window. The size and the configuration of the window, i.e....... number of glazing units, have a very large effect on the net energy gain. Therefore the energy labeling or the requirements based on the standard size may not give valid information on the energy performance of windows of non-standard size. The paper presents a method to set up requirements and classes...

  13. A graph-based sliding window multi-join over data stream

    Institute of Scientific and Technical Information of China (English)

    ZHANG Liang; Byeong-Seob You; GE Jun-wei; LIU Zhao-hong; Hae-Young Bae

    2007-01-01

    Join operation is a critical problem when dealing with sliding window over data streams. There have been many optimization strategies for sliding window join in the literature, but a simple heuristic is always used for selecting the join sequence of many sliding windows, which is ineffectively. The graph-based approach is proposed to process the problem. The sliding window join model is introduced primarily. In this model vertex represent join operator and edge indicated the join relationship among sliding windows. Vertex weight and edge weight represent the cost of join and the reciprocity of join operators respectively. Then good query plan with minimal cost can be found in the model. Thus a complete join algorithm combining setting up model, finding optimal query plan and executing query plan is shown. Experiments show that the graph-based approach is feasible and can work better in above environment.

  14. Windows and Fieldbus Based Software Computer Numerical Control System

    Institute of Scientific and Technical Information of China (English)

    WU Hongen; ZHANG Chengrui; LI Guili; WANG Baoren

    2006-01-01

    Computer numerical control (CNC) system is the base of modern digital and intelligent manufacturing technology. And opened its architecture and constituted based on PC and Windows operating system (OS) is the main trend of CNC system. However, even if the highest system priority is used in user mode, real-time capability of Windows (2000, NT, XP) for applications is not guaranteed. By using a device driver, which is running in kernel mode, the real time performance of Windows can be enhanced greatly. The acknowledgment performance of Windows to peripheral interrupts was evaluated. Harmonized with an intelligent real-time serial communication bus (RTSB), strict real-time performance can be achieved in Windows platform. An opened architecture software CNC system which is hardware independence is proposed based on PC and RTSB. A numerical control real time kernel (NCRTK), which is implemented as a device driver on Windows, is used to perform the NC tasks. Tasks are divided into real-time and non real-time. Real-time task is running in kernel mode and non real-time task is running in user mode. Data are exchanged between kernel and user mode by DMA and Windows Messages.

  15. Blood Vessel Segmentation Using Moving-Window Robust Automatic Threshold Selection

    NARCIS (Netherlands)

    Wilkinson, Michael H.F.; Wijbenga, Tsjipke; Vries, Gijs de; Westenberg, Michel A.

    2003-01-01

    Two moving-window methods, using either flat or Gaussian weighted windows, for local thresholding with Robust Automatic Threshold Selection are developed. The results show that fast segmentation of blood vessels against a varying background and noise is possible at modest computational cost. Volumes

  16. Wavelet Variance Analysis of EEG Based on Window Function

    Institute of Scientific and Technical Information of China (English)

    ZHENG Yuan-zhuang; YOU Rong-yi

    2014-01-01

    A new wavelet variance analysis method based on window function is proposed to investigate the dynamical features of electroencephalogram (EEG).The ex-prienmental results show that the wavelet energy of epileptic EEGs are more discrete than normal EEGs, and the variation of wavelet variance is different between epileptic and normal EEGs with the increase of time-window width. Furthermore, it is found that the wavelet subband entropy (WSE) of the epileptic EEGs are lower than the normal EEGs.

  17. 基于Windows 2000的防火墙设计%Windows 2000 Based Firewall Design

    Institute of Scientific and Technical Information of China (English)

    杨琛; 杨寿保

    2002-01-01

    In this paper, we will firstly analyze the design and implementation of Windows Based Firewall. To im-prove the rule matching performance, we introduce a new, high efficient rule matching algorithm and present theWindows 2000 based firewall prototype.

  18. A Selective Moving Window Partial Least Squares Method and Its Application in Process Modeling

    Institute of Scientific and Technical Information of China (English)

    Ouguan Xu; Yongfeng Fu; Hongye Su; Lijuan Li

    2014-01-01

    A selective moving window partial least squares (SMW-PLS) soft sensor was proposed in this paper and applied to a hydro-isomerization process for on-line estimation of para-xylene (PX) content. Aiming at the high frequen-cy of model updating in previous recursive PLS methods, a selective updating strategy was developed. The model adaptation is activated once the prediction error is larger than a preset threshold, or the model is kept unchanged. As a result, the frequency of model updating is reduced greatly, while the change of prediction accuracy is minor. The performance of the proposed model is better as compared with that of other PLS-based model. The compro-mise between prediction accuracy and real-time performance can be obtained by regulating the threshold. The guidelines to determine the model parameters are illustrated. In summary, the proposed SMW-PLS method can deal with the slow time-varying processes effectively.

  19. Priority and Random Selection for Dynamic Window Secured Implicit Geographic Routing in Wireless Sensor Network

    Directory of Open Access Journals (Sweden)

    Zurina M. Hanapi

    2009-01-01

    Full Text Available Problem statement: Sensor nodes are easily exposed to many attacks since it were deployed in unattended adversarial environment with no global addressing and used for critical applications such as battlefield surveillance and emergency response. While the sensor also needs to act as a router to relay a message to a required recipient, then this increased the vulnerabilities to a network layer. However, existing security mechanisms are not permissible to be fitted directly into any sensor network due to constraints on energy and computational capabilities of sensor node itself that require on the modification on the protocols that associated with the sensor node itself in order to provide the security. Approach: In this study, a Dynamic Window Secured Implicit Geographic Forwarding (DWIGF routing protocol was presented which based on an approach of lazy binding technique and dynamic time on collection window and inherits a geographical routing techniques. Results: The DWIGF was intelligent to minimize a Clear To Send (CTS rushing attack and robust against black hole and selective forwarding attacks with high packet delivery ratios because of selection of a failed node and an attacker was minimized respectively. Moreover, few routing attacks were eliminated since the routing technique used was classified as geographic routing. Conclusion: This novel routing protocol was promising a secured routing without inserting any existing security mechanism inside.

  20. FLCW: Frequent Itemset Based Text Clustering with Window Constraint

    Institute of Scientific and Technical Information of China (English)

    ZHOU Chong; LU Yansheng; ZOU Lei; HU Rong

    2006-01-01

    Most of the existing text clustering algorithms overlook the fact that one document is a word sequence with semantic information.There is some important semantic information existed in the positions of words in the sequence.In this paper, a novel method named Frequent Itemset-based Clustering with Window (FICW) was proposed, which makes use of the semantic information for text clustering with a window constraint.The experimental results obtained from tests on three (hypertext) text sets show that FICW outperforms the method compared in both clustering accuracy and efficiency.

  1. Writers Identification Based on Multiple Windows Features Mining

    Science.gov (United States)

    Fadhil, Murad Saadi; Alkawaz, Mohammed Hazim; Rehman, Amjad; Saba, Tanzila

    2016-03-01

    Now a days, writer identification is at high demand to identify the original writer of the script at high accuracy. The one of the main challenge in writer identification is how to extract the discriminative features of different authors' scripts to classify precisely. In this paper, the adaptive division method on the offline Latin script has been implemented using several variant window sizes. Fragments of binarized text a set of features are extracted and classified into clusters in the form of groups or classes. Finally, the proposed approach in this paper has been tested on various parameters in terms of text division and window sizes. It is observed that selection of the right window size yields a well positioned window division. The proposed approach is tested on IAM standard dataset (IAM, Institut für Informatik und angewandte Mathematik, University of Bern, Bern, Switzerland) that is a constraint free script database. Finally, achieved results are compared with several techniques reported in the literature.

  2. Process Windows for Sheet Metal Parts based on Metamodels

    Science.gov (United States)

    Harsch, D.; Heingärtner, J.; Hortig, D.; Hora, P.

    2016-08-01

    Achieving robust production of deep drawn sheet metal parts is challenging. The fluctuations of process and material properties often lead to robustness problems. Numerical simulations are used to validate the feasibility and to detect critical regions of a part. To enhance the consistency with the real process conditions, the measured material data and the force distribution are taken into account. The simulation metamodel contains the virtual knowledge of a particular forming process, which is determined based on a series of finite element simulations with variable input parameters. Based on the metamodels, process windows can be evaluated for different parameter configurations. This helps improving the operating point search, to adjust process settings if the process becomes unstable and to visualize the influence of arbitrary parameters on the process window.

  3. Windows with selective covering to the solar radiation based in copper for saving energy; Ventanas con recubrimiento selectivo a la radiacion solar basado en cobre que permiten el ahorro de energia

    Energy Technology Data Exchange (ETDEWEB)

    Correa, Genaro; Almanza, Rafael [Instituto de Ingenieria UNAM, Mexico, D.F. (Mexico)

    2000-07-01

    This work presents the development of new constructive elements for energy savings that satisfies the environmental, weather and human necessities of Mexico constructions. Windows with two types of coverings, one exclusively of cuprous oxide were developed (Cu{sub 2}O), and another made of a cupric sulfide film (CuS) deposited over one of cuprous oxide. The second type window presented a suitable control to the infrared radiation passage, reducing the amount of calorific radiation that crosses through it. During conditions of heating, these windows let pass in the worse one of the cases, half of the heat, reducing the thermal load to the interior of the room of the building. During conditions of cooling, the window allows to the exit of the heat to half of the speed, maintaining during long time the interior's comfort temperature. These copper thin films were made in the Institutes of Engineering and Physics of the National Autonomous University of Mexico (UNAM). The Cu{sub 2}O window obtained displays a pleasant yellowish coloration and great visibility, nevertheless, in the near infrared, blocks 50% solely. For the wished properties of thermal control it was necessary to still reduce the passage of the heat. To achieve this cupric sulfide film was gotten up with which it was possible to reach transmittances of up to 30%, in near infrared, with a decreasing tendency towards greater wavelengths. The visible transmittance for both types of films produces great luminosity and, therefore, results attractive the use of these windows in houses or buildings. The incorporation of sulfide confers to the window a coffee-grayish coloration, that raises, according to the thickness. Finally, it were developed a thermal behavior of the windows throughout the year in an apartment of 70 m{sup 2} and under two characteristic climates of the Mexican Republic. ENERGY-10 was used as a simulation tool. It was obtained the behaviors of the room throughout the year, the energy

  4. An Efficient Adaptive Window Size Selection Method for Improving Spectrogram Visualization

    Directory of Open Access Journals (Sweden)

    Shibli Nisar

    2016-01-01

    Full Text Available Short Time Fourier Transform (STFT is an important technique for the time-frequency analysis of a time varying signal. The basic approach behind it involves the application of a Fast Fourier Transform (FFT to a signal multiplied with an appropriate window function with fixed resolution. The selection of an appropriate window size is difficult when no background information about the input signal is known. In this paper, a novel empirical model is proposed that adaptively adjusts the window size for a narrow band-signal using spectrum sensing technique. For wide-band signals, where a fixed time-frequency resolution is undesirable, the approach adapts the constant Q transform (CQT. Unlike the STFT, the CQT provides a varying time-frequency resolution. This results in a high spectral resolution at low frequencies and high temporal resolution at high frequencies. In this paper, a simple but effective switching framework is provided between both STFT and CQT. The proposed method also allows for the dynamic construction of a filter bank according to user-defined parameters. This helps in reducing redundant entries in the filter bank. Results obtained from the proposed method not only improve the spectrogram visualization but also reduce the computation cost and achieves 87.71% of the appropriate window length selection.

  5. Optimal Timer Based Selection Schemes

    CERN Document Server

    Shah, Virag; Yim, Raymond

    2009-01-01

    Timer-based mechanisms are often used to help a given (sink) node select the best helper node among many available nodes. Specifically, a node transmits a packet when its timer expires, and the timer value is a monotone non-increasing function of its local suitability metric. The best node is selected successfully if no other node's timer expires within a 'vulnerability' window after its timer expiry, and so long as the sink can hear the available nodes. In this paper, we show that the optimal metric-to-timer mapping that (i) maximizes the probability of success or (ii) minimizes the average selection time subject to a minimum constraint on the probability of success, maps the metric into a set of discrete timer values. We specify, in closed-form, the optimal scheme as a function of the maximum selection duration, the vulnerability window, and the number of nodes. An asymptotic characterization of the optimal scheme turns out to be elegant and insightful. For any probability distribution function of the metri...

  6. Using life cycle based environmental assessment in developing innovative multi-functional glass-polymer windows

    OpenAIRE

    ALLACKER, Karen; Calero, Maria; Mathieux, Fabrice; Baldassarri, Catia; Roderick, Ya

    2013-01-01

    The HarWin (Harvesting solar energy with multifunctional glass-polymer windows)FP7 project focuses on the development of innovative windows and their integration in buildings. These innovative windows aim at improving significantly the energy efficiency of windows and buildings and performing environmentally well on a life cycle base. The improvements are based on reduced material usage and weight, reduced thermal conductivity and energy consumption and hence, reduced environmental life...

  7. Using life cycle based environmental assessment in developing innovative multi-functional glass-polymer windows

    OpenAIRE

    ALLACKER KAREN JOSEE; CALERO PASTOR MARIA; MATHIEUX FABRICE; BALDASSARRI CATIA; Roderick, Ya

    2013-01-01

    The HarWin (Harvesting solar energy with multifunctional glass-polymer windows) FP7 project focuses on the development of innovative windows and their integration in buildings. These innovative windows aim at improving significantly the energy efficiency of windows and buildings and performing environmentally well on a life cycle base. The improvements are based on reduced material usage and weight, reduced thermal conductivity and energy consumption and hence, reduced environmental life cycl...

  8. Building Hot Snapshot Copy Based on Windows File System

    Institute of Scientific and Technical Information of China (English)

    WANG Lina; GUO Chi; WANG Dejun; ZHU Qin

    2006-01-01

    This paper describes a method for building hot snapshot copy based on windows-file system (HSCF). The architecture and running mechanism of HSCF are discussed after giving a comparison with other on-line backup technology. HSCF, based on a file system filter driver, protects computer data and ensures their integrity and consistency with following three steps:access to open files, synchronization and copy-on-write. Its strategies for improving system performance are analyzed including priority setting, incremental snapshot and load balance. HSCF is a new kind of snapshot technology to solve the data integrity and consistency problem in online backup, which is different from other storage-level snapshot and Open File Solution.

  9. Windows Volatile Memory Forensics Based on Correlation Analysis

    Directory of Open Access Journals (Sweden)

    Xiaolu Zhang

    2014-03-01

    Full Text Available In this paper, we present an integrated memory forensic solution for multiple Windows memory images. By calculation, the method can find out the correlation degree among the processes of volatile memory images and the hidden clues behind the events of computers, which is usually difficult to be obtained and easily ignored by analyzing one single memory image and forensic investigators. In order to test the validity, we performed an experiment based on two hosts' memory image which contains criminal incidents. According to the experimental result, we find that the event chains reconstructed by our method are similar to the actual actions in the criminal scene. Investigators can review the digital crime scenario which is contained in the data set by analyzing the experimental results. This paper is aimed at finding the valid actions with illegal attempt and making the memory analysis not to be utterly dependent on the operating system and relevant experts.

  10. Forensic Analysis of Windows Hosts Using UNIX-based Tools

    Energy Technology Data Exchange (ETDEWEB)

    Cory Altheide

    2004-07-19

    Many forensic examiners are introduced to UNIX-based forensic utilities when faced with investigating a UNIX-like operating system for the first time. They will use these utilities for this very specific task, because in many cases these tools are the only ones for the given job. For example, at the time of this writing, given a FreeBSD 5.x file system, the author's only choice is to use The Coroner's Toolkit running on FreeBSD 5.x. However, many of the same tools examiners use for the occasional UNIX-like system investigation are extremely capable when a Windows system is the target. Indeed, the Linux operating system itself can prove to be an extremely useful forensics platform with very little use of specialized forensics utilities at all.

  11. New Windows based Color Morphological Operators for Biomedical Image Processing

    Science.gov (United States)

    Pastore, Juan; Bouchet, Agustina; Brun, Marcel; Ballarin, Virginia

    2016-04-01

    Morphological image processing is well known as an efficient methodology for image processing and computer vision. With the wide use of color in many areas, the interest on the color perception and processing has been growing rapidly. Many models have been proposed to extend morphological operators to the field of color images, dealing with some new problems not present previously in the binary and gray level contexts. These solutions usually deal with the lattice structure of the color space, or provide it with total orders, to be able to define basic operators with required properties. In this work we propose a new locally defined ordering, in the context of window based morphological operators, for the definition of erosions-like and dilation-like operators, which provides the same desired properties expected from color morphology, avoiding some of the drawbacks of the prior approaches. Experimental results show that the proposed color operators can be efficiently used for color image processing.

  12. VLSI Architectures for Sliding-Window-Based Space-Time Turbo Trellis Code Decoders

    Directory of Open Access Journals (Sweden)

    Georgios Passas

    2012-01-01

    Full Text Available The VLSI implementation of SISO-MAP decoders used for traditional iterative turbo coding has been investigated in the literature. In this paper, a complete architectural model of a space-time turbo code receiver that includes elementary decoders is presented. These architectures are based on newly proposed building blocks such as a recursive add-compare-select-offset (ACSO unit, A-, B-, Γ-, and LLR output calculation modules. Measurements of complexity and decoding delay of several sliding-window-technique-based MAP decoder architectures and a proposed parameter set lead to defining equations and comparison between those architectures.

  13. Spectrally-selective all-inorganic scattering luminophores for solar energy-harvesting clear glass windows

    Science.gov (United States)

    Alghamedi, Ramzy; Vasiliev, Mikhail; Nur-E-Alam, Mohammad; Alameh, Kamal

    2014-10-01

    All-inorganic visibly-transparent energy-harvesting clear laminated glass windows are the most practical solution to boosting building-integrated photovoltaics (BIPV) energy outputs significantly while reducing cooling- and heating-related energy consumption in buildings. By incorporating luminophore materials into lamination interlayers and using spectrally-selective thin-film coatings in conjunction with CuInSe2 solar cells, most of the visible solar radiation can be transmitted through the glass window with minimum attenuation while ultraviolet (UV) radiation is down-converted and routed together with a significant part of infrared radiation to the edges for collection by solar cells. Experimental results demonstrate a 10 cm × 10 cm vertically-placed energy-harvesting clear glass panel of transparency exceeding 60%, invisible solar energy attenuation greater than 90% and electrical power output near 30 Wp/m2 mainly generated by infrared (IR) and UV radiations. These results open the way for the realization of large-area visibly-transparent energy-harvesting clear glass windows for BIPV systems.

  14. Spectrally-selective all-inorganic scattering luminophores for solar energy-harvesting clear glass windows.

    Science.gov (United States)

    Alghamedi, Ramzy; Vasiliev, Mikhail; Nur-E-Alam, Mohammad; Alameh, Kamal

    2014-01-01

    All-inorganic visibly-transparent energy-harvesting clear laminated glass windows are the most practical solution to boosting building-integrated photovoltaics (BIPV) energy outputs significantly while reducing cooling- and heating-related energy consumption in buildings. By incorporating luminophore materials into lamination interlayers and using spectrally-selective thin-film coatings in conjunction with CuInSe2 solar cells, most of the visible solar radiation can be transmitted through the glass window with minimum attenuation while ultraviolet (UV) radiation is down-converted and routed together with a significant part of infrared radiation to the edges for collection by solar cells. Experimental results demonstrate a 10 cm × 10 cm vertically-placed energy-harvesting clear glass panel of transparency exceeding 60%, invisible solar energy attenuation greater than 90% and electrical power output near 30 Wp/m(2) mainly generated by infrared (IR) and UV radiations. These results open the way for the realization of large-area visibly-transparent energy-harvesting clear glass windows for BIPV systems. PMID:25321890

  15. Metal-dielectric frequency-selective surface for high performance solar window coatings

    Science.gov (United States)

    Toor, Fatima; Guneratne, Ananda C.; Temchenko, Marina

    2016-03-01

    We demonstrate a solar control window film consisting of metallic nanoantennas designed to reflect infrared (IR) light while allowing visible light to pass through. The film consists of a capacitive frequency-selective surface (CFSS) which acts as a band-stop filter, reflecting only light at target wavelengths. The designed CFSS when installed on windows will lower air conditioning costs by reflecting undesired wavelengths of light and thus reduce the amount of heat that enters a building. State-of-the-art commercial solar control films consist of a multilayer stack which is costly ( 13/m2 to 40/m2) to manufacture and absorbs IR radiation, causing delamination or glass breakage when attached to windows. Our solar control film consists of a nanostructured metallic layer on a polyethylene terephthalate (PET) substrate that reflects IR radiation instead of absorbing it, solving the delamination problem. The CFSS is also easy to manufacture with roll-to-roll nanoimprint lithography at a cost of components of the metallic nanoantenna. Our design achieves peak reflection of 80% at 1000 nm and has a broadband IR response that will allow for optimum solar control without significantly affecting the transmission of visible light.

  16. Shorter window DFT based technique for fault current filtering

    Energy Technology Data Exchange (ETDEWEB)

    Yu, C.S. [National Defence Univ., Taiwan (China); Lee, S.Y. [Northern Taiwan Inst. of Science and Technology, Taipei, Taiwan (China); Wang, S.C. [Lung Hwa Univ. of Science and Technology, Taoyuan, Taiwan (China); Chen, Y.L. [MingChi Univ. of Technology, Taipei, Taiwan (China)

    2006-07-01

    In computer protection relaying design, fault current filtering is one of the most important considerations. To overcome the reach problem caused by the decaying direct current (DC) component, researchers have focused on finding useful algorithms to remove this effect. However, in considering series compensated lines, the algorithms developed for the decaying DC component are not suitable for the subsynchronous frequency component. In addition, several accurate fault location algorithms have been proposed based on the accurate fundamental frequency phasor. However, the vital slow convergence extremely reduces the accuracy and response time of the relaying scheme. An accurate fundamental frequency phasor is therefore essential. This paper presented a damping filter design based on reiterative discrete Fourier transform (DFT) algorithm for fault current filtering in series compensated lines. To damp the measurement, the shorter window DFT based mimic filter was developed. To reconstruct the damped measurement and achieve further damping, a reiterative scheme was then proposed. The recursive form was developed to reduce the computation burden. It was concluded that the algorithm significantly reduced the time needed to obtain the accurate fundamental phasor and provided better performance than that of the conventional DFT algorithm. 9 refs., 14 figs.

  17. Window structure for passivating solar cells based on gallium arsenide

    Science.gov (United States)

    Barnett, Allen M. (Inventor)

    1985-01-01

    Passivated gallium arsenide solar photovoltaic cells with high resistance to moisture and oxygen are provided by means of a gallium arsenide phosphide window graded through its thickness from arsenic rich to phosphorus rich.

  18. Reversibility windows in selenide-based chalcogenide glasses

    Energy Technology Data Exchange (ETDEWEB)

    Shpotyuk, O. [Lviv Scientific Research Institute of Materials of SRC ' Carat' , 202, Stryjska Street, Lviv, UA 79031 (Ukraine); Institute of Physics of Jan Dlugosz University, 13/15, al. Armii Krajowej, Czestochowa, PL 42200 (Poland); Hyla, M. [Institute of Physics of Jan Dlugosz University, 13/15, al. Armii Krajowej, Czestochowa, PL 42200 (Poland); Boyko, V. [Lviv Scientific Research Institute of Materials of SRC ' Carat' , 202, Stryjska Street, Lviv, UA 79031 (Ukraine); Lviv National Polytechnic University, 12, Bandera Street, Lviv, UA 79013 (Ukraine); Golovchak, R. [Lviv Scientific Research Institute of Materials of SRC ' Carat' , 202, Stryjska Street, Lviv, UA 79031 (Ukraine)], E-mail: golovchak@novas.lviv.ua

    2008-10-01

    A simple route for the estimation of the reversibility windows in the sense of non-ageing ability is developed for chalcogenide glasses obeying '8-N' rule at the example of As-Se, Ge-Se and Ge-As-Se glass systems. The low limit of their reversibility windows is determined at the average coordination number Z=2.4 in full agreement with rigidity percolation theory, while the upper limit is shown to be related to the glass preparation conditions and samples prehistory.

  19. Stress within a restricted time window selectively affects the persistence of long-term memory.

    Directory of Open Access Journals (Sweden)

    Chang Yang

    Full Text Available The effects of stress on emotional memory are distinct and depend on the stages of memory. Memory undergoes consolidation and reconsolidation after acquisition and retrieval, respectively. Stress facilitates the consolidation but disrupts the reconsolidation of emotional memory. Previous research on the effects of stress on memory have focused on long-term memory (LTM formation (tested 24 h later, but the effects of stress on the persistence of LTM (tested at least 1 week later are unclear. Recent findings indicated that the persistence of LTM requires late-phase protein synthesis in the dorsal hippocampus. The present study investigated the effect of stress (i.e., cold water stress during the late phase after the acquisition and retrieval of contextual fear memory in rats. We found that stress and corticosterone administration during the late phase (12 h after acquisition, referred to as late consolidation, selectively enhanced the persistence of LTM, whereas stress during the late phase (12 h after retrieval, referred to as late reconsolidation, selectively disrupted the restabilized persistence of LTM. Moreover, the effects of stress on the persistence of LTM were blocked by the corticosterone synthesis inhibitor metyrapone, which was administered before stress, suggesting that the glucocorticoid system is involved in the effects of stress on the persistence of LTM. We conclude that stress within a restricted time window after acquisition or retrieval selectively affects the persistence of LTM and depends on the glucocorticoid system.

  20. Analysis of a microchannel interconnect based on the clustering of smart-pixel-device windows

    Science.gov (United States)

    Rolston, D. R.; Robertson, B.; Plant, D. V.; Hinton, H. S.

    1996-03-01

    A design analysis of a telecentric microchannel relay system developed for use with a smart-pixel-based photonic backplane is presented. The interconnect uses a clustered-window geometry in which optoelectronic device windows are grouped together about the axis of each microchannel. A Gaussian-beam propagation model is used to analyze the trade-off between window size, window density, transistor count per smart pixel, and lenslet f-number for three cases of window clustering. The results of this analysis show that, with this approach, a window density of 4000 windows/cm2 is obtained for a window size of 30 mu m and a device plane separation of 25 mm. In addition, an optical power model is developed to determine the nominal power requirements of a 32 \\times 32 smart-pixel array as a function of window size. The power requirements are obtained assuming a complementary metal-oxide semiconductor inverter-amplifier and dual-rail multiple-quantum-well self-electro-optic-effect devices as the receiver stage of the smart pixel.

  1. PubMedAlertMe--standalone Windows-based PubMed SDI software application.

    Science.gov (United States)

    Ma'ayan, Avi

    2008-05-01

    PubMedAlertMe is a Windows-based software system for automatically receiving e-mail alert messages about recent publications listed on PubMed. The e-mail messages contain links to newly available abstracts listed on PubMed describing publications that were selectively returned from a specified list of queries. Links are also provided to directly export citations to EndNote, and links are provided to directly forward articles to colleagues. The program is standalone. Thus, it does not require a remote mail server or user registration. PubMedAlertMe is free software, and can be downloaded from: http://amp.pharm.mssm.edu/PubMedAlertMe/PubMedAlertMe_setup.zip.

  2. DIAGNOSIS WINDOWS PROBLEMS BASED ON HYBRID INTELLIGENCE SYSTEMS

    Directory of Open Access Journals (Sweden)

    SAFWAN O. HASOON

    2013-10-01

    Full Text Available This paper describes the artificial intelligence technologies by integrating Radial Basis Function networks with expert systems to construct a robust hybrid system. The purpose of building the hybrid system is to give recommendations to repair the operating system (Windows problems and troubleshoot the problems that can be repaired. The neural network has unique characteristics which it can complete the uncompleted data, the expert system can't deal with data that is incomplete, but using the neural network individually has some disadvantages which it can't give explanations and recommendations to the problems. The expert system has the ability to explain and give recommendations by using the rules and the human expert in some conditions. Therefore, we have combined the two technologies. The paper will explain the integration methods between the two technologies and which method is suitable to be used in the proposed hybrid system.

  3. Windowed Decoding of Protograph-based LDPC Convolutional Codes over Erasure Channels

    CERN Document Server

    Iyengar, Aravind; Siegel, Paul; Wolf, Jack; Vanelli-Coralli, Alessandro; Corazza, Giovanni

    2010-01-01

    We consider a windowed decoding scheme for LDPC convolutional codes that is based on the belief-propagation (BP) algorithm. We discuss the advantages of this decoding scheme and identify certain characteristics of LDPC convolutional code ensembles that exhibit good performance with the windowed decoder. We will consider the performance of these ensembles and codes over erasure channels with and without memory. We show that the structure of LDPC convolutional code ensembles is suitable to obtain performance close to the theoretical limits over the memoryless erasure channel, both for the BP decoder and windowed decoding. However, the same structure imposes limitations on the performance over erasure channels with memory.

  4. Extended abstract: Using life cycle based environmental assessment in developing innovative multi-functional glass-polymer windows

    OpenAIRE

    ALLACKER KAREN JOSEE; CALERO PASTOR MARIA; MATHIEUX FABRICE; BALDASSARRI CATIA; Roderick, Ya

    2013-01-01

    The HarWin (Harvesting solar energy with multifunctional glass-polymer windows) FP7 project focuses on the development of innovative windows and their integration in buildings. These innovative windows aim at improving significantly the energy efficiency of windows and buildings and performing environmentally well on a life cycle base. The improvements are based on reduced material usage and weight, reduced thermal conductivity and energy consumption and hence, reduced environmental life cycl...

  5. Scan statistic tail probability assessment based on process covariance and window size

    OpenAIRE

    Reiner-Benaim, Anat

    2013-01-01

    A scan statistic is examined for the purpose of testing the existence of a global peak in a random process with dependent variables of any distribution. The scan statistic tail probability is obtained based on the covariance of the moving sums process, thereby accounting for the spatial nature of the data as well as the size of the searching window. Exact formulas linking this covariance to the window size and the correlation coefficient are developed under general, common and auto covariance...

  6. Robust repeated median regression in moving windows with data-adaptive width selection

    OpenAIRE

    Borowski, Matthias; Fried, Roland

    2011-01-01

    Online (also 'real-time' or 'sequential') signal extraction from noisy and outlier- interfered data streams is a basic but challenging goal. Fitting a robust Repeated Median (Siegel, 1982) regression line in a moving time window has turned out to be a promising approach (Davies et al., 2004; Gather et al., 2006; Schettlinger et al., 2006). The level of the regression line at the rightmost window position, which equates to the current time point in an online application, is then...

  7. Improved hybrid information filtering based on limited time window

    Science.gov (United States)

    Song, Wen-Jun; Guo, Qiang; Liu, Jian-Guo

    2014-12-01

    Adopting the entire collecting information of users, the hybrid information filtering of heat conduction and mass diffusion (HHM) (Zhou et al., 2010) was successfully proposed to solve the apparent diversity-accuracy dilemma. Since the recent behaviors are more effective to capture the users' potential interests, we present an improved hybrid information filtering of adopting the partial recent information. We expand the time window to generate a series of training sets, each of which is treated as known information to predict the future links proven by the testing set. The experimental results on one benchmark dataset Netflix indicate that by only using approximately 31% recent rating records, the accuracy could be improved by an average of 4.22% and the diversity could be improved by 13.74%. In addition, the performance on the dataset MovieLens could be preserved by considering approximately 60% recent records. Furthermore, we find that the improved algorithm is effective to solve the cold-start problem. This work could improve the information filtering performance and shorten the computational time.

  8. Fabrication of Microcapsules for Dye-Doped Polymer-Dispersed Liquid Crystal-Based Smart Windows.

    Science.gov (United States)

    Kim, Mingyun; Park, Kyun Joo; Seok, Seunghwan; Ok, Jong Min; Jung, Hee-Tae; Choe, Jaehoon; Kim, Do Hyun

    2015-08-19

    A dye-doped polymer-dispersed liquid crystal (PDLC) is an attractive material for application in smart windows. Smart windows using a PDLC can be operated simply and have a high contrast ratio compared to those of other devices that employed photochromic or thermochromic material. However, in conventional dye-doped PDLC methods, dye contamination can cause problems and has a limited degree of commercialization of electric smart windows. Here, we report on an approach to resolve dye-related problems by encapsulating the dye in monodispersed capsules. By encapsulation, a fabricated dye-doped PDLC had a contrast ratio of >120 at 600 nm. This fabrication method of encapsulating the dye in a core-shell structured microcapsule in a dye-doped PDLC device provides a practical platform for dye-doped PDLC-based smart windows. PMID:26192469

  9. Windows Server 2003下构建校园VPN%A Construction of Campus VPN Based on Windows Server 2003

    Institute of Scientific and Technical Information of China (English)

    黄英铭

    2006-01-01

    近几年VPN技术逐步趋向成熟.构建基于Internet的校园VPN,可以实现安全的网络办公.文章简单介绍了VPN的关键技术,分析了Windows Server 2003中的VPN功能,提出了基于Windows Server 2003软件平台的校园VPN解决方案.

  10. A secure mobile phone-based interactive logon in Windows

    OpenAIRE

    Bodriagov, Oleksandr

    2010-01-01

    Password-based logon schemes have many security weaknesses. Smart card and biometric based authentication solutions are available as a replacement for standard password-based schemes for security sensitive environments. However, the cost of deployment and maintenance of these systems is quite high. On the other hand, mobile network operators have a huge base of deployed smart cards that can be reused to provide authentication in other areas significantly reducing costs. This master s thesis ...

  11. Electrochemical Stability Window of Imidazolium-Based Ionic Liquids as Electrolytes for Lithium Batteries.

    Science.gov (United States)

    Kazemiabnavi, Saeed; Zhang, Zhengcheng; Thornton, Katsuyo; Banerjee, Soumik

    2016-06-30

    This paper presents the computational assessment of the electrochemical stability of a series of alkyl methylimidazolium-based ionic liquids for their use as lithium battery electrolytes. The oxidation and reduction potentials of the constituent cation and anion of each ionic liquid with respect to a Li(+)/Li reference electrode were calculated using density functional theory following the method of thermodynamic cycles, and the electrochemical stability windows (ESW)s of these ionic liquids were obtained. The effect of varying the length of alkyl side chains of the methylimidazolium-based cations on the redox potentials and ESWs was investigated. The results show that the limits of the ESWs of these methylimidazolium-based ionic liquids are defined by the oxidation potential of the anions and the reduction potential of alkyl-methylimidazolium cations. Moreover, ionic liquids with [PF6](-) anion have a wider ESW. In addition to characterizing structure-function relationships, the accuracy of the computational approach was assessed through comparisons of the data against experimental measurements of ESWs. The potentials calculated by the thermodynamic cycle method are in good agreement with the experimental data while the HOMO/LUMO method overestimates the redox potentials. This work demonstrates that these approaches can provide guidance in selecting ionic liquid electrolytes when designing high-voltage rechargeable batteries. PMID:27266487

  12. VO2-based Thermochromic and Nanothermochromic Materials for Energy-Efficient Windows : Computational and Experimental Studies

    OpenAIRE

    Li, Shuyi

    2013-01-01

    VO2-based films are thermochromic and exhibit high or low infrared transmittance when the temperature is below or above a critical temperature. The thermochromic switching is passive and reversible, and therefore VO2 based films are promising for energy-efficient window appli­cations. However the practicaluse of VO2 for energy-efficient windows has long been hampered by low luminous transmittance and low solar energy transmittance modulation. The main goal of this dissertation work is to address ...

  13. Time Series Outlier Detection Based on Sliding Window Prediction

    Directory of Open Access Journals (Sweden)

    Yufeng Yu

    2014-01-01

    Full Text Available In order to detect outliers in hydrological time series data for improving data quality and decision-making quality related to design, operation, and management of water resources, this research develops a time series outlier detection method for hydrologic data that can be used to identify data that deviate from historical patterns. The method first built a forecasting model on the history data and then used it to predict future values. Anomalies are assumed to take place if the observed values fall outside a given prediction confidence interval (PCI, which can be calculated by the predicted value and confidence coefficient. The use of PCI as threshold is mainly on the fact that it considers the uncertainty in the data series parameters in the forecasting model to address the suitable threshold selection problem. The method performs fast, incremental evaluation of data as it becomes available, scales to large quantities of data, and requires no preclassification of anomalies. Experiments with different hydrologic real-world time series showed that the proposed methods are fast and correctly identify abnormal data and can be used for hydrologic time series analysis.

  14. Scatter correction in myocardial thallium SPECT. Needs for optimization of energy window settings in the energy window-based scatter correction techniques

    Energy Technology Data Exchange (ETDEWEB)

    Narita, Yuichiro [Akita Research Institute of Brain and Blood Vessels (Japan); Iida, Hidehiro

    1999-02-01

    Accuracy and limitation of energy-window based scatter correction techniques have been evaluated for myocardial {sup 201}Tl SPECT by means of Monte Carlo simulation. In particular, projection view-dependency of energy distribution of the scattered photons was evaluated. Two geometrical configurations were simulated; namely a homogeneous cylindrical radioactivity located asymmetrically in a homogeneous cylindrical phantom, and a homogeneous ring radioactivity positioned at the myocardial region of a human thorax phantom. Energy spectra were recorded for each projection, and accuracy of the triple-energy window (TEW) method was then evaluation for both phantoms. The energy distribution of the scattered photons was apparently dependent on the projection view. TEW also demonstrated systematic overcorrection for the scatter because of multiple photo peaks around 80 keV, and more importantly, the error was highly dependent on the projection view. The error reached to 35-38% for the view that is the closest to the {sup 201}Tl radioactivity (anterior view in case of the myocardial ring phantom), and was approximately 20% in the opposite view. This view-dependency of the error remained for other energy window settings, and was found to cause significant artifact in the reconstructed myocardial images, typically causing a defect in the anterior myocardial wall. Thus, this study demonstrated the need for optimizing the window settings for each projection view in all energy window-based scatter correction methods. (author)

  15. Terminal Design in Vector Network based on Windows Platform

    Directory of Open Access Journals (Sweden)

    Aqun Zhao

    2013-03-01

    Full Text Available The research work of this study focuses on the design and implementation technology of terminal in Vector Network (VN based indows platform. The VN is a kind of new communication network with vector address as the switching adon Wdress. The premise of successful deployment of VN is its integration with the current IP networks, so it is necessary to study the implementation technology of VN terminal on the base of IP terminal. Firstly, a kind of software implementation method of VN terminal and a kind of integration method of VN and IP networks named “IP over VN” were proposed in this study. Secondly, the VN driver module was designed and implemented based on the NDIS driver interface and the key technique in the implementation was summarized. Finally, the experiment network was built to test the functions of VN terminal. The test results validated the rationality of the design and implementation scheme of VN terminal. The work of this study establishes the foundation for the deployment of VN and provides an example to the development of similar systems.

  16. Development of young oil palm tree recognition using Haar- based rectangular windows

    Science.gov (United States)

    Daliman, S.; Abu-Bakar, S. A. R.; Nor Azam, S. H. Md

    2016-06-01

    This paper presents development of Haar-based rectangular windows for recognition of young oil palm tree based on WorldView-2 imagery data. Haar-based rectangular windows or also known as Haar-like rectangular features have been popular in face recognition as used in Viola-Jones object detection framework. Similar to face recognition, the oil palm tree recognition would also need a suitable Haar-based rectangular windows that best suit to the characteristics of oil palm tree. A set of seven Haar-based rectangular windows have been designed to better match specifically the young oil palm tree as the crown size is much smaller compared to the matured ones. Determination of features for oil palm tree is an essential task to ensure a high successful rate of correct oil palm tree detection. Furthermore, features that reflects the identification of oil palm tree indicate distinctiveness between an oil palm tree and other objects in the image such as buildings, roads and drainage. These features will be trained using support vector machine (SVM) to model the oil palm tree for classifying the testing set and subimages of WorldView-2 imagery data. The resulting classification of young oil palm tree with sensitivity of 98.58% and accuracy of 92.73% shows a promising result that it can be used for intention of developing automatic young oil palm tree counting.

  17. Region of interest and windowing-based progressive medical image delivery using JPEG2000

    Science.gov (United States)

    Nagaraj, Nithin; Mukhopadhyay, Sudipta; Wheeler, Frederick W.; Avila, Ricardo S.

    2003-05-01

    An important telemedicine application is the perusal of CT scans (digital format) from a central server housed in a healthcare enterprise across a bandwidth constrained network by radiologists situated at remote locations for medical diagnostic purposes. It is generally expected that a viewing station respond to an image request by displaying the image within 1-2 seconds. Owing to limited bandwidth, it may not be possible to deliver the complete image in such a short period of time with traditional techniques. In this paper, we investigate progressive image delivery solutions by using JPEG 2000. An estimate of the time taken in different network bandwidths is performed to compare their relative merits. We further make use of the fact that most medical images are 12-16 bits, but would ultimately be converted to an 8-bit image via windowing for display on the monitor. We propose a windowing progressive RoI technique to exploit this and investigate JPEG 2000 RoI based compression after applying a favorite or a default window setting on the original image. Subsequent requests for different RoIs and window settings would then be processed at the server. For the windowing progressive RoI mode, we report a 50% reduction in transmission time.

  18. Broadband Bioimpedance Spectroscopy Based on a Multifrequency Mixed Excitation and Nuttall Windowed FFT Algorithm

    OpenAIRE

    Yuxiang Yang; Wen Zhang; Fangling Du; Xuan Tang; He Wen; Zhaosheng Teng

    2014-01-01

    Bioimpedance spectroscopy (BIS) has become an important clinical indicator for monitoring the pathological status of biological tissues, and multifrequency simultaneous measurement of BIS may provide more accurate diagnostic information compared with the traditional frequency-sweep measurement technology. This paper proposes a BIS multifrequency simultaneous measurement method based on multifrequency mixed (MFM) signal excitation and a Nuttall windowed interpolation FFT algorithm. Firstly, th...

  19. Two New Sliding DTFT Algorithms for Phase Difference Measurement Based on a New Kind of Windows

    Science.gov (United States)

    Tu, Yaqing; Shen, Ting'ao; Zhang, Haitao; Li, Ming

    2014-12-01

    For the ultra-low frequency signals or adjacent Nyquist frequency signals, which exist in the vibration engineering domain, the traditional DTFT-based algorithm shows serious bias for phase difference measurement. It is indicated that the spectrum leakage and negative frequency contribution are the essential causes of the bias. In order to improve the phase difference measurement accuracy of the DTFT-based algorithm, two new sliding DTFT algorithms for phase difference measurement based on a new kind of windows are proposed, respectively. Firstly, the new kind of windows developed by convolving conventional rectangular windows is introduced, which obtains a stronger inhibition of spectrum leakage. Then, with negative frequency contribution considered, two new formulas for phase difference calculation under the new kind of windows are derived in detail. Finally, the idea of sliding recursive is proposed to decrease the computational load. The proposed algorithms are easy to be realized and have a higher accuracy than the traditional DTFT-based algorithm. Simulations and engineering applications verified the feasibility and effectiveness of the proposed algorithms.

  20. Two New Sliding DTFT Algorithms for Phase Difference Measurement Based on a New Kind of Windows

    Directory of Open Access Journals (Sweden)

    Tu Yaqing

    2014-12-01

    Full Text Available For the ultra-low frequency signals or adjacent Nyquist frequency signals, which exist in the vibration engineering domain, the traditional DTFT-based algorithm shows serious bias for phase difference measurement. It is indicated that the spectrum leakage and negative frequency contribution are the essential causes of the bias. In order to improve the phase difference measurement accuracy of the DTFT-based algorithm, two new sliding DTFT algorithms for phase difference measurement based on a new kind of windows are proposed, respectively. Firstly, the new kind of windows developed by convolving conventional rectangular windows is introduced, which obtains a stronger inhibition of spectrum leakage. Then, with negative frequency contribution considered, two new formulas for phase difference calculation under the new kind of windows are derived in detail. Finally, the idea of sliding recursive is proposed to decrease the computational load. The proposed algorithms are easy to be realized and have a higher accuracy than the traditional DTFT-based algorithm. Simulations and engineering applications verified the feasibility and effectiveness of the proposed algorithms.

  1. Sliding Window Analyses for Optimal Selection of Mini-Barcodes, and Application to 454-Pyrosequencing for Specimen Identification from Degraded DNA

    DEFF Research Database (Denmark)

    Boyer, Stephane; Brown, Samuel D J; Collins, Rupert A;

    2012-01-01

    , method to compare the performance of all potential mini-barcodes for a given molecular marker and to objectively select the shortest and most informative one. Our method is based on a sliding window analysis implemented in the new R package SPIDER (Species IDentity and Evolution in R). This method...... is applicable to any taxon and any molecular marker. Here, it was tested on earthworm DNA that had been degraded through digestion by carnivorous landsnails. A 100 bp region of 16 S rDNA was selected as the shortest informative fragment (mini-barcode) required for accurate specimen identification. Corresponding...... primers were designed and used to amplify degraded earthworm (prey) DNA from 46 landsnail (predator) faeces using 454-pyrosequencing. This led to the detection of 18 earthworm species in the diet of the snail. We encourage molecular ecologists to use this method to objectively select the most informative...

  2. 基于Windows Phone平台的移动项目开发%Mobile Platform Development Based on Windows Phone

    Institute of Scientific and Technical Information of China (English)

    刘伟世; 王晋东; 唐泽皓

    2014-01-01

    Windows Phone是微软在2010年10月发布的一款手机操作系统,它将微软旗下的Xbox Live游戏、Xbox Music音乐与独特的视频体验整合至手机中。为了更好地了解这个平台的开发,用C#语言在此系统下开发了一款关于中国文化的手机应用---《瓷Online》。主要介绍了Windows Phone手机应用开发的主要流程和在开发过程中所用到的编程技术。通过多次测试之后,将其上传到Windows Phone应用商店。通过下载量表明,此移动平台具有不错的市场。%Windows Phone is a mobile phone operating system releasd by Microsoft in Oct.2010.It combines Microsoft’s Xbox Live games,Xbox Music and distinctive video experience to the phone. In order to understand the development of the platform,"porcelain Online" is developed,a smartphone app about Chinese Culture based on this system. This paper introduces the main processes and Windows Phone programming technologies used in the process of mobile phone application development. After several tests,it is uploaded to the Windows Phone app store .According to the down loads,the market prospects of the mobile platform is promising.

  3. Embedded GIS based on Windows CE%基于Windows CE的嵌入式GIS设计与应用

    Institute of Scientific and Technical Information of China (English)

    姚荣; 吴宁; 任亮

    2008-01-01

    Windows CE为操作系统,eVC为开发环境,结合eSuperMap相关工具,介绍了手持终端的嵌入式GIS开发;主要分析了嵌入式GIS的开发流程和相应的关键技术,具体涉及到Windows CE软件开发环境的建立,电子地图的制作,GIS应用程序的开发3个方面;详细介绍了应用程序的整体架构以及eSuperMap类库在eVC中的具体运用,包括eSuperMap类库的结构分析、点按动作的实现、地图操作具体流程、GPS信息管理以及最短路径算法优化等.

  4. Surveying software development based on Windows Mobile%基于Windows Mobile的测量软件的开发

    Institute of Scientific and Technical Information of China (English)

    王崇倡; 孙尚宇; 宋伟东

    2011-01-01

    To develop simple and handy mobile survey softwares for data collecting and processing, an analysis was made of advantages and disadvantages of commonly used data collecting and processing softwares.GeoSolution was proposed to deal with software weaknesses.With the developming environment of Windows Mobile 6.0 operating system's application program as the platform, developing architecture of GeoSolutions software was built and the developming process was explained.Some solutions were put forward to deal with technical difficulties during the software development.%为了开发简单易用的移动测量设备数据采集、处理软件,对目前常用的数据采集、处理软件的优缺点作了分析,并针对存在缺点提出了GeoSolution软件的解决方案.以Windows Mobile 6.0操作系统应用程序的开发环境为平台,搭建GeoSolution软件的开发架构,并对GeoSolution软件的开发过程作了阐明,针对软件开发过程中遇到的技术难题提出了解决方法.

  5. Development of Cutting Amount Calculating Software Based on Windows Mobile%基于Windows Mobile的切削用量计算软件的开发

    Institute of Scientific and Technical Information of China (English)

    谌鹏

    2011-01-01

    The cutting amount calculating software based on Windows Mobile was developed in order to calculate the cutting amount expediently in NC cutting. The cutting parameters were input with touching buttons, and the input data could be examined automatically, which were useful for calculating the cutting amount easily. The test result shows that the software can work on DOPOD TOUCH HD intelligent cellular phone and other phones with Windows Mobile operation system. The software has good commonality.%为了实现数控加工中切削用量的便捷计算,开发基于Windows Mobile的切削用量计算软件.该软件采用触摸按钮完成切削参数的输入,且具有输入数据的自动校验功能,实现了切削用量的便捷计算.经测试,该软件在多普达TOUCH HD型号或其他Windows Mobile操作系统的智能手机上均能正常运行,表明其具有良好的通用性.

  6. Substrate selection for fundamental studies of electrocatalysts and photoelectrodes: inert potential windows in acidic, neutral, and basic electrolyte.

    Directory of Open Access Journals (Sweden)

    Jesse D Benck

    Full Text Available The selection of an appropriate substrate is an important initial step for many studies of electrochemically active materials. In order to help researchers with the substrate selection process, we employ a consistent experimental methodology to evaluate the electrochemical reactivity and stability of seven potential substrate materials for electrocatalyst and photoelectrode evaluation. Using cyclic voltammetry with a progressively increased scan range, we characterize three transparent conducting oxides (indium tin oxide, fluorine-doped tin oxide, and aluminum-doped zinc oxide and four opaque conductors (gold, stainless steel 304, glassy carbon, and highly oriented pyrolytic graphite in three different electrolytes (sulfuric acid, sodium acetate, and sodium hydroxide. We determine the inert potential window for each substrate/electrolyte combination and make recommendations about which materials may be most suitable for application under different experimental conditions. Furthermore, the testing methodology provides a framework for other researchers to evaluate and report the baseline activity of other substrates of interest to the broader community.

  7. Rolling optimization algorithm based on collision window for single machine scheduling problem

    Institute of Scientific and Technical Information of China (English)

    Wang Changjun; Xi Yugeng

    2005-01-01

    Focusing on the single machine scheduling problem which minimizes the total completion time in the presence of dynamic job arrivals, a rolling optimization scheduling algorithm is proposed based on the analysis of the character and structure of scheduling. An optimal scheduling strategy in collision window is presented. Performance evaluation of this algorithm is given. Simulation indicates that the proposed algorithm is better than other common heuristic algorithms on both the total performance and stability.

  8. An open software system based on X Windows for process control and equipment monitoring

    International Nuclear Information System (INIS)

    The construction and application of a configurable open software system for process control and equipment monitoring can speed up and simplify the development and maintenance of equipment specific software as compared to individual solutions. The present paper reports the status of such an approach for the distributed control systems of SPS and LEP beam transfer components, based on X Windows and the OSF/Motif tool kit and applying data modeling and software engineering methods. (author)

  9. Open Architecture of Single-processor Real-time Robot Control System Based on Windows NT

    Institute of Scientific and Technical Information of China (English)

    张广立; 付莹; 杨汝清

    2003-01-01

    This paper introduces the architecture and implementation of an industrial robot control system,which is based on a singleprocessor structure,can run on general industrial computers.Owing to using Windows NT's real-time time performance and friendly user interface in one generalpurpose operating system.A three layer hierarchical system more scalable and flexible.Furthermore a communication and configuration system is implemented to make the control system scalable and flexible.

  10. Parallel Performance of MPI Sorting Algorithms on Dual-Core Processor Windows-Based Systems

    OpenAIRE

    Alaa Ismail El-Nashar

    2011-01-01

    Message Passing Interface (MPI) is widely used to implement parallel programs. Although Windowsbased architectures provide the facilities of parallel execution and multi-threading, little attention has been focused on using MPI on these platforms. In this paper we use the dual core Window-based platform to study the effect of parallel processes number and also the number of cores on the performance of three MPI parallel implementations for some sorting algorithms.

  11. Detection of Tumours in Digital Mammograms Using Wavelet Based Adaptive Windowing Method

    Directory of Open Access Journals (Sweden)

    G.Bharatha Sreeja

    2012-04-01

    Full Text Available Mammography is the most effective procedure for the early detection of breast diseases. Mammogram analysis refers the processing of mammograms with the goal of finding abnormality presented in the mammogram. In this paper, the tumour can be detected by using wavelet based adaptive windowing technique. Coarse segmentation is the first step which can be done by using wavelet based histogram thresholding where, the thereshold value is chosen by performing 1-D wavelet based analysis of PDFs of wavelet transformed images at different channels. Fine segmentation can be done by partitioning the image into fixed number of large and small windows. By calculating the mean, maximum and minimum pixel values for the windows a threshold value has been obtained. Depending upon the threshold values the suspicious areas have been segmented. Intensity adjustment is applied as a preprocessing step to improve the quality of an image before applying the proposed technique. The algorithm is validated with mammograms in Mammographic Image Analysis Society Mini Mammographic database which shows that the proposed technique is capable of detecting lesions of very different sizes

  12. Broadband Bioimpedance Spectroscopy Based on a Multifrequency Mixed Excitation and Nuttall Windowed FFT Algorithm

    Directory of Open Access Journals (Sweden)

    Yuxiang Yang

    2014-01-01

    Full Text Available Bioimpedance spectroscopy (BIS has become an important clinical indicator for monitoring the pathological status of biological tissues, and multifrequency simultaneous measurement of BIS may provide more accurate diagnostic information compared with the traditional frequency-sweep measurement technology. This paper proposes a BIS multifrequency simultaneous measurement method based on multifrequency mixed (MFM signal excitation and a Nuttall windowed interpolation FFT algorithm. Firstly, the excitation source adopts the nine-frequency MFM signal f(9,t, which has excellent spectral characteristic and is very suitable for BIS measurement. On this basis, a Nuttall window is adopted to truncate sample data, and an interpolation FFT algorithm based on Nuttall window is built to perform spectral analysis, in which the parameter correction formula is provided based on polynomial approximation. A BIS measurement simulation experiment is performed on an RC three-element equivalent circuit, and results on the 9 primary harmonic frequencies ranging from 3.9 kHz to 1 MHz show a high accuracy with the impedance amplitude relative error |Ez|<0.3%, and the phase absolute error |Ep|<0.1°. This paper validates the feasibility of BIS multifrequency simultaneous measurement method and establishes an algorithm foundation for the development of practical broadband BIS measurement system.

  13. Performance analysis of adjustable window based FIR filter for noisy ECG Signal Filtering

    Directory of Open Access Journals (Sweden)

    N. Mahawar

    2013-09-01

    Full Text Available Recording of the electrical activity associated to heart functioning is known as Electrocardiogram (ECG. ECG is a quasi-periodical, rhythmically signal synchronized by the function of the heart, which acts as a generator of bioelectric events. ECG signals are low level signals and sensitive to external contaminations. Electrocardiogram signals are often corrupted by noise which may have electrical or electrophysiological origin. The noise signal tends to alter the signal morphology, thereby hindering the correct diagnosis. In order to remove the unwanted noise, a digital filtering technique based on adjustable windows is proposed in this paper. Finite Impulse Response (FIR low pass is designed using windowing method for the ECG signal. The results obtained from different techniques are compared on the basis of popularly used signal error measures like SNR, PRD, PRD1, and MSE.

  14. Exponential Window Family

    Directory of Open Access Journals (Sweden)

    Kemal Avci

    2013-10-01

    Full Text Available n this paper we propose a new class of 2-parameter adjustable windows, namely Exponential window, based on the exponential function [1,2]. The Expone ntial window is derived in the same way as Kaiser window was derived, but our proposed window is more computationally efficient because in its time domain function it has no power series expansion. F irst, the spectrum design equations for the Exponen tial window are established, and the spectral comparison s are performed with Cosh, Kaiser and ultraspherica l windows. The proposed window is compared with Cosh and Kaiser windows, and the results show that for the same window length and mainlobe width the Expon ential window provides better sidelobe roll-off rat io characteristic, which may be important for some app lications, but worse ripple ratio. The second comparison is performed with ultraspherical window for the same window length, mainlobe width and sidelobe roll-off ratio and the results demonstrate that the Exponential window exhibits better ripple ratio for the narrower mainlobe width and larger sidelobe roll-off ratio, but worse ripple ratio for the wid er mainlobe width and smaller sidelobe roll-off ratio

  15. 基于 Windows 服务的文件夹同步实现%Realization of Folder Synchronization Based on the Windows Service

    Institute of Scientific and Technical Information of China (English)

    邹珺

    2014-01-01

    通过文件操作类实现在两个或多个文件夹之间自动复制备份,实现同步工作。使用OOP方式设计文件同步相关的类,将文件同步的核心功能实现在一个Windows服务中,通过Windows服务,使得同步工作长驻操作系统。%It can realize automatically copying and backuping between two or more folder through the class of file operat‐ing ,and also realize synchronization .It designs the class of file synchronization through the method of OOP ,can realize the core function of file synchronization into the Windows service .It makes synchronization to based in Operating System through the Window s service .

  16. Line clipping against polygonal window algorithm based on the multiple virtual boxes rejecting

    Institute of Scientific and Technical Information of China (English)

    WANG Jin; LU Guo-dong; PENG Qun-sheng; WU Xuan-hui

    2005-01-01

    This paper presents a new algorithm for line clipping against a polygonal window by exploiting the local relationship between each line segment and the polygon. Firstly, a minimal enclosing box (MEB) of the polygon is adopted to reject the invisible line segments located outside the MEB. Secondly, a 45° rotated box is used to encode the endpoint of the line segment, and then reject a portion of the invisible segments crossing polygon corners. Finally, instead of encoding the endpoints of all line segments with respect to the polygonal window, each vertex of the polygon is encoded, taking the line segment to be clipped as reference. For efficient encoding of the polygon vertices, a new concept, termed with slope adaptive virtual box, is introduced regarding each line segment. Such a box can not only conveniently reject all totally invisible lines lying outside the MEB conveniently, but also precisely identify the edges of the polygon with which the line segment potentially intersects. With the summation of the vertex codes, it can be verified whether the line segment is separated from or potentially intersects the polygon window. Based on the product of the codes of adjacent vertices, singular cases of intersection can be solved accurately. Experimental results demonstrate the efficiency and stability of the new algorithm.

  17. Continuous Monitoring of Distributed Data Streams over a Time-based Sliding Window

    CERN Document Server

    Chan, Ho-Leung; Lee, Lap-Kei; Ting, Hing-Fung

    2009-01-01

    The past decade has witnessed many interesting algorithms for maintaining statistics over a data stream. This paper initiates a theoretical study of algorithms for monitoring distributed data streams over a time-based sliding window (which contains a variable number of items and possibly out-of-order items). The concern is how to minimize the communication between individual streams and the root, while allowing the root, at any time, to be able to report the global statistics of all streams within a given error bound. This paper presents communication-efficient algorithms for three classical statistics, namely, basic counting, frequent items and quantiles. The worst-case communication cost over a window is $O(\\frac{k} {\\epsilon} \\log \\frac{\\epsilon N}{k})$ bits for basic counting and $O(\\frac{k}{\\epsilon} \\log \\frac{N}{k})$ words for the remainings, where $k$ is the number of distributed data streams, $N$ is the total number of items in the streams that arrive or expire in the window, and $\\epsilon < 1$ is...

  18. Surface EMG-based Sketching Recognition Using Two Analysis Windows and Gene Expression Programming

    Science.gov (United States)

    Yang, Zhongliang; Chen, Yumiao

    2016-01-01

    Sketching is one of the most important processes in the conceptual stage of design. Previous studies have relied largely on the analyses of sketching process and outcomes; whereas surface electromyographic (sEMG) signals associated with sketching have received little attention. In this study, we propose a method in which 11 basic one-stroke sketching shapes are identified from the sEMG signals generated by the forearm and upper arm muscles from 4 subjects. Time domain features such as integrated electromyography, root mean square and mean absolute value were extracted with analysis windows of two length conditions for pattern recognition. After reducing data dimensionality using principal component analysis, the shapes were classified using Gene Expression Programming (GEP). The performance of the GEP classifier was compared to the Back Propagation neural network (BPNN) and the Elman neural network (ENN). Feature extraction with the short analysis window (250 ms with a 250 ms increment) improved the recognition rate by around 6.4% averagely compared with the long analysis window (2500 ms with a 2500 ms increment). The average recognition rate for the eleven basic one-stroke sketching patterns achieved by the GEP classifier was 96.26% in the training set and 95.62% in the test set, which was superior to the performance of the BPNN and ENN classifiers. The results show that the GEP classifier is able to perform well with either length of the analysis window. Thus, the proposed GEP model show promise for recognizing sketching based on sEMG signals. PMID:27790083

  19. Development of a Silicon Based Electron Beam Transmission Window for Use in a KrF Excimer Laser System

    CERN Document Server

    Gentile, C A; Hartfield, J W; Hawryluk, R J; Hegeler, F; Heitzenroeder, P J; Jun, C H; Ku, L P; Lamarche, P H; Myers, M C; Parker, J J; Parsells, R F; Payen, M; Raftopoulos, S; Sethian, J D

    2002-01-01

    The Princeton Plasma Physics Laboratory (PPPL), in collaboration with the Naval Research Laboratory (NRL), is currently investigating various novel materials (single crystal silicon, , and ) for use as electron-beam transmission windows in a KrF excimer laser system. The primary function of the window is to isolate the active medium (excimer gas) from the excitation mechanism (field-emission diodes). Chosen window geometry must accommodate electron energy transfer greater than 80% (750 keV), while maintaining structural integrity during mechanical load (1.3 to 2.0 atm base pressure differential, approximate 0.5 atm cyclic pressure amplitude, 5 Hz repetition rate) and thermal load across the entire hibachi area (approximate 0.9 W centre dot cm superscript ''-2''). In addition, the window must be chemically resistant to attack by fluorine free-radicals (hydrofluoric acid, secondary). In accordance with these structural, functional, and operational parameters, a 22.4 mm square silicon prototype window, coated w...

  20. Development of a Silicon Based Electron Beam Transmission Window for Use in a KrF Excimer Laser System

    International Nuclear Information System (INIS)

    The Princeton Plasma Physics Laboratory (PPPL), in collaboration with the Naval Research Laboratory (NRL), is currently investigating various novel materials (single crystal silicon, , and ) for use as electron-beam transmission windows in a KrF excimer laser system. The primary function of the window is to isolate the active medium (excimer gas) from the excitation mechanism (field-emission diodes). Chosen window geometry must accommodate electron energy transfer greater than 80% (750 keV), while maintaining structural integrity during mechanical load (1.3 to 2.0 atm base pressure differential, approximate 0.5 atm cyclic pressure amplitude, 5 Hz repetition rate) and thermal load across the entire hibachi area (approximate 0.9 W · cm superscript ''-2''). In addition, the window must be chemically resistant to attack by fluorine free-radicals (hydrofluoric acid, secondary). In accordance with these structural, functional, and operational parameters, a 22.4 mm square silicon prototype window, coated with 500 nm thin-film silicon nitride (Si3N4), has been fabricated. The window consists of 81 square panes with a thickness of 0.019 mm ± 0.001 mm. Stiffened (orthogonal) sections are 0.065 mm in width and 0.500 mm thick (approximate). Appended drawing (Figure 1) depicts the window configuration. Assessment of silicon (and silicon nitride) material properties and CAD modeling and analysis of the window design suggest that silicon may be a viable solution to inherent parameters and constraints

  1. A P-Based Hybrid Evolutionary Algorithm for Vehicle Routing Problem with Time Windows

    Directory of Open Access Journals (Sweden)

    Yunyun Niu

    2014-01-01

    Full Text Available The ability to solve optimization problems using membrane algorithms is an important application of membrane computing. This work combines membrane systems and genetic operators to build an approximated algorithm for the vehicle routing problem with time windows. The algorithm is based on a tissue-like membrane structure combined with cell separation rules and communication rules; during such processes membranes collect and disperse information. Genetic operators are used as the system's subalgorithms. We also design a special improvement strategy to speed up the search process in subsystems. The experimental results show that the solution quality from the proposed algorithm is competitive with other heuristic or metaheuristic algorithms in the literature.

  2. Robot path planning in globally unknown environments based on rolling windows

    Institute of Scientific and Technical Information of China (English)

    张纯刚; 席裕庚

    2001-01-01

    In this paper, robot path planning in globally unknown environments is studied. Using the rolling optimization concept in predictive control for reference, a new strategy of path planning for a mobile robot, based on rolling windows, is proposed. The method makes full use of the real-time local environmental information detected by the robot and the on-line path planning is carried on in a rolling style. Optimization and feedback are combined in a reasonable way. The convergence of the planning algorithm is also discussed.

  3. Windows for Intel Macs

    CERN Document Server

    Ogasawara, Todd

    2008-01-01

    Even the most devoted Mac OS X user may need to use Windows XP, or may just be curious about XP and its applications. This Short Cut is a concise guide for OS X users who need to quickly get comfortable and become productive with Windows XP basics on their Macs. It covers: Security Networking ApplicationsMac users can easily install and use Windows thanks to Boot Camp and Parallels Desktop for Mac. Boot Camp lets an Intel-based Mac install and boot Windows XP on its own hard drive partition. Parallels Desktop for Mac uses virtualization technology to run Windows XP (or other operating systems

  4. Development of a Windows-based Modeling System for Simulating Microtopography-Controlled Overland Flow

    Science.gov (United States)

    Chu, X.; Yang, J.; chi, Y.; Yang, Y.; Zhang, J.

    2011-12-01

    Surface microtopography affects both temporal variability and spatial distributions of a series of rainfall-infiltration-runoff hydrologic processes. A comprehensive Windows-based modeling system is developed in this study for simulating microtopography-controlled puddle-to-puddle (P2P) overland flow. As a fundamental step, a puddle delineation tool is used for characterizing surface microtopography, delineating puddles and their relationships, determining flow directions and accumulations, and precisely computing maximum depression storage (MDS) and maximum ponding area (MPA). The P2P modeling system simulates the dynamic P2P filling, spilling, and merging overland flow processes on either impervious or infiltrating surfaces. The Windows interface allows users to prepare their input data, run the models (both puddle delineation and P2P modeling), and visualize simulation results in formats of tables, graphs (2D and 3D), and animations. The wizard particularly facilitates computer-guided, step-by-step P2P overland flow modeling. In addition, a set of stand-alone tools are incorporated in the P2P modeling system, including 2D and 3D visualization and animation tools, laser scanner data combination tool, image-based depression storage computation tool, image correction tool, coordinate transformation tool, slope removal tool, and fractal analysis tool. Testing examples demonstrate simulations of P2P overland flow on various microtopographic surfaces and usefulness of the visualization and hydrotopographic analysis tools.

  5. Windows Azure

    CERN Document Server

    Johnson, Bruce; Chambers, James; Garber, Danny; Malik, Jamal; Fazio, Adam

    2013-01-01

    A collection of five must-have Azure titles, from some of the biggest names in the field Available individually, but at a discounted rate for the collection, this bundle of five e-books covers key developer and IT topics of Windows Azure, including ASP.NET, mobile services, web sites, data storage, and the hybrid cloud. A host of Microsoft employees and MPVs come together to cover the biggest challenges that professionals face when working with Windows Azure. The e-books included are as follows: Windows Azure and ASP.NET MVC MigrationWindows Azure Mobile ServicesWindows Azure Web SitesWindows

  6. Dynamic Probe Window Based Optimization for Surveillance in Home Security System

    Directory of Open Access Journals (Sweden)

    Bhaskar Kapoor

    2010-02-01

    Full Text Available Tracking of a moving object is very important for video surveillance in a real time scenario. The proposedalgorithm uses dynamic probe window based approach & combines the conventional edge based and framedifferencing approach to achieve better algorithmic time complexity as well as improved results. First itcomputes the edge map of two consecutive frames with the help of first order differential sobel operator dueto its noise resistant attributes and applies the frame differencing method between the two consecutive edgemaps. Apart from the above optimization, our method doesn’t differentiate between the scenario when motionoccurs and when it doesn’t, that is, almost same computation overhead is required even if motion is not thereso it reduces the time complexity of the algorithm when no motion is detected. The effectiveness of theproposed motion detection algorithm is demonstrated in a real time environment and the evaluation resultsare reported.

  7. New Strategy for Congestion Control based on Dynamic Adjustment of Congestion Window

    Directory of Open Access Journals (Sweden)

    Gamal Attiya

    2012-03-01

    Full Text Available This paper presents a new mechanism for the end-to-end congestion control, called EnewReno. The proposed mechanism is based on the enhancement of both the congestion avoidance and the fast recovery algorithms of the TCP NewReno so as to improve its performance. The basic idea of the proposed mechanism is to adjust the congestion window of the TCP sender dynamically based on the level of congestion in the network so as to allow transferring more packets to the destination. The performance of the proposed mechanism is evaluated and compared with the most recent mechanisms by simulation studies using the well known Network Simulator NS-2 and the realistic topology generator GT-ITM.

  8. Application of Geographical Field Practice System Based on Windows Phone%基于Windows Phone的地理野外实习系统

    Institute of Scientific and Technical Information of China (English)

    曹文德; 董东林; 原菲菲; 茹伟娜; 孙文洁; 李傲

    2013-01-01

    针对目前地理野外实习中相关辅助移动设备及客观条件的限制,基于Windows Phone设计的地理野外实习系统,能够实现实习小组的实时定位、实习轨迹的记录与回放等功能,直观地查看模拟的复杂地质地貌形成过程,借助绘图板快速地进行地质地貌素描.采用数字字典技术可以快速有效地录入地质地貌数据,提供图文并茂的实习区域整体概况.%According to the limit of geographical field relevant practice auxiliary mobile devices and objective conditions, based on Windows Phone, the article designed the geographical field practice system, to achieve real-time location of the practice team, the internship track record and playback functions. This system could intuitive check the complex geological and geomorphological simulation of the formation. And drawing board could be rapid sketch of the geology and geomorphology. By means of digital dictionary technology can quickly and efficiently go to the illustrations of the overall geological and geomorphological data entry , and this system provides internship and improve the efficiency of practice teaching, and inspire students' interest in learning.

  9. 基于Windows2003环境下ASPPHP共享平台的架设%ASP+PHP Sharing Platform Based on Windows2003

    Institute of Scientific and Technical Information of China (English)

    孙华

    2013-01-01

      当今,主流的动态网页技术主要采用ASP、PHP和JSP这三种语言,而PHP是一种用于创建动态WEB页面的服务端脚本语言。虽然发展历史很短,但因其开放源代码,程序简单易学且功能强大,又是免费使用使得越来越多的企业意识到它的实用性,促使它迅速发展起来。 PHP支持多种系统平台,本文就如何在Windows Server 2003系统平台中搭建ASP与PHP共享运行环境的配置过程进行描述。%The current dynamic web technology mainly uses the three languages of ASP, PHP and JSP. PHP is a scripting language used to create dynamic Web page server. Although the history of its development is very short, the program is easy to learn and has powerful functions because of its open-source codes. With free access, more and more companies realize its great practicality, so it has developed rapidly. PHP supports a variety of platforms, while this paper presents how to build an ASP and PHP sharing platform based on Windows Server 2003 system.

  10. Establishment of windows-based load management system for electricity cost savings in competitive electricity markets

    International Nuclear Information System (INIS)

    For electricity markets to function in a truly competitive and efficient manner, it is not enough to focus solely on improving the efficiencies of power supply. To recognize price-responsive load as a reliability resource, the customer must be provided with price signals and an instrument to respond to these signals, preferably automatically. This paper attempts to develop the Windows-based load management system in competitive electricity markets, allowing the user to monitor the current energy consumption or billing information, to analyze the historical data, and to implement the consumption strategy for cost savings with nine possible scenarios adopted. Finally, this modeling framework will serve as a template containing the basic concepts that any load management system should address. (author)

  11. Absolute Position Sensing Based on a Robust Differential Capacitive Sensor with a Grounded Shield Window

    Directory of Open Access Journals (Sweden)

    Yang Bai

    2016-05-01

    Full Text Available A simple differential capacitive sensor is provided in this paper to measure the absolute positions of length measuring systems. By utilizing a shield window inside the differential capacitor, the measurement range and linearity range of the sensor can reach several millimeters. What is more interesting is that this differential capacitive sensor is only sensitive to one translational degree of freedom (DOF movement, and immune to the vibration along the other two translational DOFs. In the experiment, we used a novel circuit based on an AC capacitance bridge to directly measure the differential capacitance value. The experimental result shows that this differential capacitive sensor has a sensitivity of 2 × 10−4 pF/μm with 0.08 μm resolution. The measurement range of this differential capacitive sensor is 6 mm, and the linearity error are less than 0.01% over the whole absolute position measurement range.

  12. Absolute Position Sensing Based on a Robust Differential Capacitive Sensor with a Grounded Shield Window.

    Science.gov (United States)

    Bai, Yang; Lu, Yunfeng; Hu, Pengcheng; Wang, Gang; Xu, Jinxin; Zeng, Tao; Li, Zhengkun; Zhang, Zhonghua; Tan, Jiubin

    2016-01-01

    A simple differential capacitive sensor is provided in this paper to measure the absolute positions of length measuring systems. By utilizing a shield window inside the differential capacitor, the measurement range and linearity range of the sensor can reach several millimeters. What is more interesting is that this differential capacitive sensor is only sensitive to one translational degree of freedom (DOF) movement, and immune to the vibration along the other two translational DOFs. In the experiment, we used a novel circuit based on an AC capacitance bridge to directly measure the differential capacitance value. The experimental result shows that this differential capacitive sensor has a sensitivity of 2 × 10(-4) pF/μm with 0.08 μm resolution. The measurement range of this differential capacitive sensor is 6 mm, and the linearity error are less than 0.01% over the whole absolute position measurement range. PMID:27187393

  13. Window-based computer code package CONPAS for an integrated level 2 PSA

    International Nuclear Information System (INIS)

    A PC window-based computer code. CONPAS (CONtainment Performance Analysis System), has been developed to integrate the numerical, graphical, and results-operation aspects of Level2 probabilistic safety assessments (PSA) for nuclear power plants automatically. As a main logic for accident progression analysis, it employs a concept of the small containment phenomenological event tree (CPET) helpful to trace out visually individual accident progressions and of the large supporting event tree (LSET) for its detailed quantification. Compared with other existing computer codes for Level 2 PSA, the CONPAS code provides several advanced features: computational aspects including systematic uncertainty analysis, importance analysis, and sensitivity analysis, reporting aspects including tabling and graphic, and user-friend interface

  14. Absolute Position Sensing Based on a Robust Differential Capacitive Sensor with a Grounded Shield Window

    Science.gov (United States)

    Bai, Yang; Lu, Yunfeng; Hu, Pengcheng; Wang, Gang; Xu, Jinxin; Zeng, Tao; Li, Zhengkun; Zhang, Zhonghua; Tan, Jiubin

    2016-01-01

    A simple differential capacitive sensor is provided in this paper to measure the absolute positions of length measuring systems. By utilizing a shield window inside the differential capacitor, the measurement range and linearity range of the sensor can reach several millimeters. What is more interesting is that this differential capacitive sensor is only sensitive to one translational degree of freedom (DOF) movement, and immune to the vibration along the other two translational DOFs. In the experiment, we used a novel circuit based on an AC capacitance bridge to directly measure the differential capacitance value. The experimental result shows that this differential capacitive sensor has a sensitivity of 2 × 10−4 pF/μm with 0.08 μm resolution. The measurement range of this differential capacitive sensor is 6 mm, and the linearity error are less than 0.01% over the whole absolute position measurement range. PMID:27187393

  15. Absolute Position Sensing Based on a Robust Differential Capacitive Sensor with a Grounded Shield Window.

    Science.gov (United States)

    Bai, Yang; Lu, Yunfeng; Hu, Pengcheng; Wang, Gang; Xu, Jinxin; Zeng, Tao; Li, Zhengkun; Zhang, Zhonghua; Tan, Jiubin

    2016-01-01

    A simple differential capacitive sensor is provided in this paper to measure the absolute positions of length measuring systems. By utilizing a shield window inside the differential capacitor, the measurement range and linearity range of the sensor can reach several millimeters. What is more interesting is that this differential capacitive sensor is only sensitive to one translational degree of freedom (DOF) movement, and immune to the vibration along the other two translational DOFs. In the experiment, we used a novel circuit based on an AC capacitance bridge to directly measure the differential capacitance value. The experimental result shows that this differential capacitive sensor has a sensitivity of 2 × 10(-4) pF/μm with 0.08 μm resolution. The measurement range of this differential capacitive sensor is 6 mm, and the linearity error are less than 0.01% over the whole absolute position measurement range.

  16. Electrorheological Fluids Based on Titania Particles Coated with Silica and Their Application in Smart Windows

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The electrorheological (ER) fluids are colloidal suspension of highly polarizable particles in a non-conducting solvent. Chains ofsubmicron-sized particles formed along an applied DC electric field by the so-called electrorheological effect. According to theobvious change of transmittance of the ER fluids in a DC electric field when the polarized particles arranged along the field,the model of smart window was proposed by sandwiching the ER fluids based on titania particles coated with silica between apair of In-Sn oxide (ITO) coated glasses. The solar transmittance change as much as 48.0% was obtained with the wavelengthof 500 nm at the maximum on applying and removing the electric field of 500 V/mm.

  17. Monitoring Software Design Based on Linux and LabWindows/CVI%基于Linux和LabWindows/CVI的监控软件设计

    Institute of Scientific and Technical Information of China (English)

    王斌; 强盛; 张雪; 李巍

    2013-01-01

    针对传统监控系统监控对象单一、网络服务不完善、智能化程度不高等问题,设计并实现了一种下位机以i.MX53处理器为核心,嵌入式Linux作为嵌入式操作系统;上位机采用LabWindows/CVI开发,上下位机遵照自拟的网络通信协议通信的远程监控系统.采用Linux下进程间通信、LabWindows/CVI与MySQL数据库通信、多线程和基于ActiveX生成报表等技术,实现了信号采集、报文传输、数据存储和实时显示等功能.测试结果表明,该系统用户界面仿Win8风格,远程视频监控平均延时1.45 s,报警正确率达98.2%,具有一定的推广和使用价值.%The traditional monitoring system was only applicable to a monitoring object,poor in network services and not high degree of intelligence.In order to solve these questions,a remote monitoring system based on i.MX53 as the core microcontroller was designed and realized.Linux was used as its operating system in the lower computer part,and LabWindows/CVI was used as development platform in the upper computer part.The two parts was communicated through the private network communication protocol.Several technologies were adopted such as inter-process communication under the Linux,MySQL database communication,multithread technology,and generating data report based on ActiveX etc.The system realizes the signal collection,message transmission,data storage and real-time display and other functions.Test results show that the system has imitation Win8 style of user interface,the average delay of 1.45 s in remote control,and alarm accuracy of 98.2%,so it has some practical value.

  18. Dynamic Aberration Correction for Conformal Window of High-Speed Aircraft Using Optimized Model-Based Wavefront Sensorless Adaptive Optics

    Science.gov (United States)

    Dong, Bing; Li, Yan; Han, Xin-li; Hu, Bin

    2016-01-01

    For high-speed aircraft, a conformal window is used to optimize the aerodynamic performance. However, the local shape of the conformal window leads to large amounts of dynamic aberrations varying with look angle. In this paper, deformable mirror (DM) and model-based wavefront sensorless adaptive optics (WSLAO) are used for dynamic aberration correction of an infrared remote sensor equipped with a conformal window and scanning mirror. In model-based WSLAO, aberration is captured using Lukosz mode, and we use the low spatial frequency content of the image spectral density as the metric function. Simulations show that aberrations induced by the conformal window are dominated by some low-order Lukosz modes. To optimize the dynamic correction, we can only correct dominant Lukosz modes and the image size can be minimized to reduce the time required to compute the metric function. In our experiment, a 37-channel DM is used to mimic the dynamic aberration of conformal window with scanning rate of 10 degrees per second. A 52-channel DM is used for correction. For a 128 × 128 image, the mean value of image sharpness during dynamic correction is 1.436 × 10−5 in optimized correction and is 1.427 × 10−5 in un-optimized correction. We also demonstrated that model-based WSLAO can achieve convergence two times faster than traditional stochastic parallel gradient descent (SPGD) method. PMID:27598161

  19. Dynamic Aberration Correction for Conformal Window of High-Speed Aircraft Using Optimized Model-Based Wavefront Sensorless Adaptive Optics.

    Science.gov (United States)

    Dong, Bing; Li, Yan; Han, Xin-Li; Hu, Bin

    2016-09-02

    For high-speed aircraft, a conformal window is used to optimize the aerodynamic performance. However, the local shape of the conformal window leads to large amounts of dynamic aberrations varying with look angle. In this paper, deformable mirror (DM) and model-based wavefront sensorless adaptive optics (WSLAO) are used for dynamic aberration correction of an infrared remote sensor equipped with a conformal window and scanning mirror. In model-based WSLAO, aberration is captured using Lukosz mode, and we use the low spatial frequency content of the image spectral density as the metric function. Simulations show that aberrations induced by the conformal window are dominated by some low-order Lukosz modes. To optimize the dynamic correction, we can only correct dominant Lukosz modes and the image size can be minimized to reduce the time required to compute the metric function. In our experiment, a 37-channel DM is used to mimic the dynamic aberration of conformal window with scanning rate of 10 degrees per second. A 52-channel DM is used for correction. For a 128 × 128 image, the mean value of image sharpness during dynamic correction is 1.436 × 10(-5) in optimized correction and is 1.427 × 10(-5) in un-optimized correction. We also demonstrated that model-based WSLAO can achieve convergence two times faster than traditional stochastic parallel gradient descent (SPGD) method.

  20. Sliding window analyses for optimal selection of mini-barcodes, and application to 454-pyrosequencing for specimen identification from degraded DNA.

    Directory of Open Access Journals (Sweden)

    Stephane Boyer

    Full Text Available DNA barcoding remains a challenge when applied to diet analyses, ancient DNA studies, environmental DNA samples and, more generally, in any cases where DNA samples have not been adequately preserved. Because the size of the commonly used barcoding marker (COI is over 600 base pairs (bp, amplification fails when the DNA molecule is degraded into smaller fragments. However, relevant information for specimen identification may not be evenly distributed along the barcoding region, and a shorter target can be sufficient for identification purposes. This study proposes a new, widely applicable, method to compare the performance of all potential 'mini-barcodes' for a given molecular marker and to objectively select the shortest and most informative one. Our method is based on a sliding window analysis implemented in the new R package SPIDER (Species IDentity and Evolution in R. This method is applicable to any taxon and any molecular marker. Here, it was tested on earthworm DNA that had been degraded through digestion by carnivorous landsnails. A 100 bp region of 16 S rDNA was selected as the shortest informative fragment (mini-barcode required for accurate specimen identification. Corresponding primers were designed and used to amplify degraded earthworm (prey DNA from 46 landsnail (predator faeces using 454-pyrosequencing. This led to the detection of 18 earthworm species in the diet of the snail. We encourage molecular ecologists to use this method to objectively select the most informative region of the gene they aim to amplify from degraded DNA. The method and tools provided here, can be particularly useful (1 when dealing with degraded DNA for which only small fragments can be amplified, (2 for cases where no consensus has yet been reached on the appropriate barcode gene, or (3 to allow direct analysis of short reads derived from massively parallel sequencing without the need for bioinformatic consolidation.

  1. Design and implementation of I2Vote-An interactive image-based voting system using windows mobile devices

    NARCIS (Netherlands)

    van Ooijen, P. M. A.; Broekema, A.; Oudkerk, M.

    2011-01-01

    Purpose: To develop, implement and test a novel audience response system (ARS) that allows image based interaction for radiology education. Methods: The ARS developed in this project is based on standard Personal Digital Assistants (PDAs) (HP iPAQ 114 classic handheld) running Microsoft (R) Windows

  2. On the practical convergence of coda-based correlations: a window optimization approach

    Science.gov (United States)

    Chaput, J.; Clerc, V.; Campillo, M.; Roux, P.; Knox, H.

    2016-02-01

    We present a novel optimization approach to improve the convergence of interstation coda correlation functions towards the medium's empirical Green's function. For two stations recording a series of impulsive events in a multiply scattering medium, we explore the impact of coda window selection through a Markov Chain Monte Carlo scheme, with the aim of generating a gather of correlation functions that is the most coherent and symmetric over events, thus recovering intuitive elements of the interstation Green's function without any nonlinear post-processing techniques. This approach is tested here for a 2-D acoustic finite difference model, where a much improved correlation function is obtained, as well as for a database of small impulsive icequakes recorded on Erebus Volcano, Antarctica, where similar robust results are shown. The average coda solutions, as deduced from the posterior probability distributions of the optimization, are further representative of the scattering strength of the medium, with stronger scattering resulting in a slightly delayed overall coda sampling. The recovery of singly scattered arrivals in the coda of correlation functions are also shown to be possible through this approach, and surface wave reflections from outer craters on Erebus volcano were mapped in this fashion. We also note that, due to the improvement of correlation functions over subsequent events, this approach can further be used to improve the resolution of passive temporal monitoring.

  3. Switchable Materials for Smart Windows.

    Science.gov (United States)

    Wang, Yang; Runnerstrom, Evan L; Milliron, Delia J

    2016-06-01

    This article reviews the basic principles of and recent developments in electrochromic, photochromic, and thermochromic materials for applications in smart windows. Compared with current static windows, smart windows can dynamically modulate the transmittance of solar irradiation based on weather conditions and personal preferences, thus simultaneously improving building energy efficiency and indoor human comfort. Although some smart windows are commercially available, their widespread implementation has not yet been realized. Recent advances in nanostructured materials provide new opportunities for next-generation smart window technology owing to their unique structure-property relations. Nanomaterials can provide enhanced coloration efficiency, faster switching kinetics, and longer lifetime. In addition, their compatibility with solution processing enables low-cost and high-throughput fabrication. This review also discusses the importance of dual-band modulation of visible and near-infrared (NIR) light, as nearly 50% of solar energy lies in the NIR region. Some latest results show that solution-processable nanostructured systems can selectively modulate the NIR light without affecting the visible transmittance, thus reducing energy consumption by air conditioning, heating, and artificial lighting. PMID:27023660

  4. Switchable Materials for Smart Windows.

    Science.gov (United States)

    Wang, Yang; Runnerstrom, Evan L; Milliron, Delia J

    2016-06-01

    This article reviews the basic principles of and recent developments in electrochromic, photochromic, and thermochromic materials for applications in smart windows. Compared with current static windows, smart windows can dynamically modulate the transmittance of solar irradiation based on weather conditions and personal preferences, thus simultaneously improving building energy efficiency and indoor human comfort. Although some smart windows are commercially available, their widespread implementation has not yet been realized. Recent advances in nanostructured materials provide new opportunities for next-generation smart window technology owing to their unique structure-property relations. Nanomaterials can provide enhanced coloration efficiency, faster switching kinetics, and longer lifetime. In addition, their compatibility with solution processing enables low-cost and high-throughput fabrication. This review also discusses the importance of dual-band modulation of visible and near-infrared (NIR) light, as nearly 50% of solar energy lies in the NIR region. Some latest results show that solution-processable nanostructured systems can selectively modulate the NIR light without affecting the visible transmittance, thus reducing energy consumption by air conditioning, heating, and artificial lighting.

  5. 基于Windows Phone的"掌上世园游"设计与开发%The Design and Develop of "PIHETS" based on Windows Phone

    Institute of Scientific and Technical Information of China (English)

    焦俊超; 孙成苗; 胡振彪

    2015-01-01

    "掌上世园游"移动端软件基于Windows Phone手机操作系统开发,采用SOA设计理念,遵从数据、管理、服务和应用相分离的架构原则,通过地理信息数据整合、管理和网络化在线服务模式,融合无线网络技术、LBS技术、GIS技术,在实现传统基本电子地图功能的基础上,着眼于游园的自动化、智能化体验,为游客游览世园会提供查询、向导、辅助决策等各项服务. 系统在2014年青岛世界园艺博览会期间得到了较好的应用,最大限度的发挥了对世园会的宣传和推介作用.%"Pocket International Horticulture Exposition Tour System"mobile client software is developed based on Windows Phone mobile phone operating system. It is designed using SOA concept and comply with the principles of data architecture,management,services and applications of phase separation. Wi-Fi,LBS and GIS technologies are also im-bedded in this software. It not only has the basic functions of traditional electronic map,but also focuses on automatic vi-sualization and intelligent experience. Those provide services like query,wizard or decision support. This system is well applied in Qingdao International Horticulture Exposition 2014,which plays a important role in publicity and promotion.

  6. Window Stories

    DEFF Research Database (Denmark)

    Hauge, Bettina

    This research project has investigated 17 households in Germany (cities and rural areas). The main aim was to learn about the significance of the window to these people: What they think of their windows, how, when and why they use them in their everyday life, if they have a favorite window and why......, as well as the opposite. The report also includes a special focus on overheating and people’s strategies against this. Knowing about what people appreciate in a window and their actual practices and the reasons for their behaviour may be useful in many different ways, for instance to inform public...

  7. Path planning based on sliding window and variant A*algorithm for quadruped robot

    Institute of Scientific and Technical Information of China (English)

    张慧

    2016-01-01

    In order to improve the adaptability of the quadruped robot in complex environments , a path planning method based on sliding window and variant A * algorithm for quadruped robot is presen-ted .To improve the path planning efficiency and robot security , an incremental A*search algorithm ( IA*) and the A*algorithm having obstacle grids extending ( EA*) are proposed respectively .The IA* algorithm firstly searches an optimal path based on A * algorithm, then a new route from the current path to the new goal projection is added to generate a suboptimum route incrementally .In comparison with traditional method solving path planning problem from scratch , the IA* enables the robot to plan path more efficiently .EA* extends the obstacle by means of increasing grid g-value, which makes the route far away from the obstacle and avoids blocking the narrow passage .To navi-gate the robot running smoothly , a quadratic B-spline interpolation is applied to smooth the path . Simulation results illustrate that the IA* algorithm can increase the re-planning efficiency more than 5 times and demonstrate the effectiveness of the EA * algorithm.

  8. A new fast friendly window-based congestion control for real-time streaming media transmission

    Institute of Scientific and Technical Information of China (English)

    LI Yongli; LIU Guizhong; ZHANG Zhongwei; WU Chenggui

    2005-01-01

    Real-time streaming media over the Internet is an important component of multimedia applications. For the sake of quality of service (QoS), they make rigid demands on bandwidth, delay and packet loss. However, the current Internet does not offer any QoS guarantees to real-time streaming media over it. How to maximize the transmission quality of real-time streaming applications in a best-effort network while friendly sharing bandwidth with non-real time applications like TCP has become an important issue. But now, many real-time streaming applications based on UDP rarely perform congestion control in a TCP-friendly manner, and they do not share the available bandwidth fairly with applications built on TCP. The Internet communication strongly fears that the current evolution could lead to congestion collapse and starvation of TCP traffic. For this reason, TCP-friendly protocols are being developed to behave fairly with respect to coexistent TCP flows. In this paper we present a new window-based congestion control method-fast fair binomial congestion control (FFBCC) for real-time applications. It provides a good performance of bandwidth distribution and TCP-friendliness for real-time streaming transmission while competing bandwidth with TCP flows.

  9. Smart windows application of carbazole and triazine based star shaped architecture.

    Science.gov (United States)

    Guzel, Merve; Soganci, Tugba; Ayranci, Rukiye; Ak, Metin

    2016-08-01

    A novel triazine-based, star shape and electroactive monomer, 2,4,6-tris(2-(9H-carbazol-9-yl)ethoxy)-1,3,5-triazine (TCZ) which contains 2,4,6-trichloro-1,3,5-triazine as the core and 2-(9H-carbazol-9-yl)ethanol as the arms, was successfully synthesized. After electrochemical polymerization of the TCZ monomer, called PTCZ, the polymer shows superior optoelectronic and thermal properties due to its unique three-dimensional shape and highly-branched structure in comparison with linear analogues. Electrochromic studies exhibited that PTCZ has turquoise color in the oxidized state and is transparent in the neutral state. Due to the fact that the redox color characteristics of PTCZ are indispensable for smart windows, a PTCZ-based electrochromic device was formed with PEDOT as complementary coloring material. A potential range of -1.5 to +1.8 V was determined to be suitable for operating the PTCZ/PEDOT device between transparent and blue colors. Characterizations of the device were performed in term of switching times, optical contrast, optical memory and redox stability. PMID:27431786

  10. Smart windows application of carbazole and triazine based star shaped architecture.

    Science.gov (United States)

    Guzel, Merve; Soganci, Tugba; Ayranci, Rukiye; Ak, Metin

    2016-08-01

    A novel triazine-based, star shape and electroactive monomer, 2,4,6-tris(2-(9H-carbazol-9-yl)ethoxy)-1,3,5-triazine (TCZ) which contains 2,4,6-trichloro-1,3,5-triazine as the core and 2-(9H-carbazol-9-yl)ethanol as the arms, was successfully synthesized. After electrochemical polymerization of the TCZ monomer, called PTCZ, the polymer shows superior optoelectronic and thermal properties due to its unique three-dimensional shape and highly-branched structure in comparison with linear analogues. Electrochromic studies exhibited that PTCZ has turquoise color in the oxidized state and is transparent in the neutral state. Due to the fact that the redox color characteristics of PTCZ are indispensable for smart windows, a PTCZ-based electrochromic device was formed with PEDOT as complementary coloring material. A potential range of -1.5 to +1.8 V was determined to be suitable for operating the PTCZ/PEDOT device between transparent and blue colors. Characterizations of the device were performed in term of switching times, optical contrast, optical memory and redox stability.

  11. 基于Windows CE的电子词典的设计与实现%Design and realization of electronic dictionary based on Windows CE

    Institute of Scientific and Technical Information of China (English)

    杨乐; 何军红; 谷丛; 仝维

    2008-01-01

    针对客户对嵌入式操作系统平台上应用软件的实际需求,介绍了实时嵌入式操作系统Windows CE.net的特点,提出了在嵌入式Windows CE.net系统平台上利用EVC开发电子词典的步骤和方法.系统采用嵌入式CPUPXA255作为硬件开发平台,嵌入式操作系统Windows CE.net作为软件平台,应用软件的开发环境为EVC,使用语言为Windows C,测试该应用程序时,在Windows NT上测试比较成熟之后再下载到Windows CE上,该软件经过调试后达到了基于Windows CE的电子词典设计的功能要求,经软件调试证明,该电子词典实现了对PC上同类产品的替代,可有效满足用户需求.

  12. Research and Implementation of the Kirgiz Text Input Method Based on the Windows Phone 7.5%基于Windows Phone 7.5的柯尔克孜文输入法研究与实现

    Institute of Scientific and Technical Information of China (English)

    阿依佳肯·阿曼太; 吾守尔·斯拉木; 艾尼宛儿·托乎提; 麦迪乃·热合木江

    2013-01-01

    Windows Phone 7.5 is a new and one of the very potential smart phone operating systems. This paper analyzes the language features,spelling characteristics and design difficulties of the text of the Kirgiz writing, uses the automatic selection rule to solve the input direction problem and complex text processing of Kirgiz writing on Windows Phone 7.5. Moreover, it solves the mixing display problem of Kirgiz, Chinese and English,and realizes the Kirgiz text input method on the Windows Phone 7.5.%Windows Phone 7.5是一款最近推出的且非常有潜力的智能手机操作系统之一.本文首先分析了柯尔克孜文的文字特点、拼写特点和设计难点,应用自动选型规则解决了柯尔克孜文在Windows Phone 7.5中的输入方向问题和连接问题,解决了柯尔克孜文与中文、英文和数字的混屏显示问题,从而在Windows Phone 7.5中实现了柯尔克孜文输入法.

  13. Selection of window for inter-pulse analysis of simple pulsed radar signal using the short time Fourier transform

    Directory of Open Access Journals (Sweden)

    Ashraf Adamu Ahmad

    2015-11-01

    Full Text Available The electronic intelligence (ELINT system is used by the military to detect, extract information and classify incoming radar signals. This work utilizes short time Fourier transform (STFT - time frequency distribution (TFD for inter-pulse analysis of the radar signal in order to estimate basic radar signal time parameters (pulse width and pulse repetition period. Four well-known windows functions of different and unique characteristics were used for the localization of STFT to determine their various effects on the analysis. The window functions are Hamming, Hanning, Bartlett and Blackman window functions. Monte Carlo simulation is carried out to determine the performance of the signal analysis in presence of additive white Gaussian noise (AWGN. Results show that the lower the transition of main lobe width and higher the peak side lobe, the better the performance of the window function irrespective of time parameter being estimated. This is because 100 percent probability of correct estimation is achieved at signal to noise ratio of about -2dB for Bartlett, 4dB for both Hamming and Hanning, and 9dB for Blackman.

  14. Development of the fast BPM data acquisition system using windows oscilloscope-based EPICS IOC

    International Nuclear Information System (INIS)

    The KEK Linac is a 600-m-long injector, which provides the beams for the four independent rings (KEKB e-/e+, PF and PF-AR). The non-destructive beam position monitor (BPM) is indispensable diagnostic tool for the long-term stable beam operation. In the KEK Linac, approximately one hundred BPMs with the four strip-line type electrodes are utilized for the beam orbit measurement. The orbit data is used for the orbit and energy feedback loops. Towards the simultaneous top-up injection of KEKB and PF, the Linac has been upgraded for aiming the fast beam-mode switching operation. We developed a new fast BPM DAQ system using a Windows-based digital oscilloscope since the 50 Hz beam position measurement is strongly required for the fast beam-mode switching operation. In this paper, we will present the system description of the new BPM DAQ system and the result of its performance test in detail. (author)

  15. ZAKI a windows-based k sub o standardization code for in-core INAA

    CERN Document Server

    Ojo, J O

    2002-01-01

    A new computer code ZAKI, for k sub o -based INAA standardization, written in Visual Basic for the WINDOWS environment is described. The parameter alpha measuring the deviation of the epithermal neutron spectrum shape from the ideal 1/E shape, and the thermal-to-epithermal flux ratio f, are monitored at each irradiation position for each irradiation using the ''triple bare monitor with k sub o '' technique. Stability of the irradiation position with respect to alpha and f is therefore assumed only for the duration of the irradiation. This now makes it possible to use k sub o standardization even for in-core reactor irradiation channels without an a priori knowledge of alpha and f values as required by existing commercial software. ZAKI is considerably versatile and contains features which allow for use of several detectors at different counting geometries, direct inputting of peak search output from GeniePc, and automatic nuclide identification of all gamma lines using an in-built library. Sample results for ...

  16. Identification of nonlinear time-varying systems using an online sliding-window and common model structure selection (CMSS) approach with applications to EEG

    Science.gov (United States)

    Li, Yang; Wei, Hua-Liang; Billings, Stephen. A.; Sarrigiannis, P. G.

    2016-08-01

    The identification of nonlinear time-varying systems using linear-in-the-parameter models is investigated. An efficient common model structure selection (CMSS) algorithm is proposed to select a common model structure, with application to EEG data modelling. The time-varying parameters for the identified common-structured model are then estimated using a sliding-window recursive least squares (SWRLS) approach. The new method can effectively detect and adaptively track and rapidly capture the transient variation of nonstationary signals, and can also produce robust models with better generalisation properties. Two examples are presented to demonstrate the effectiveness and applicability of the new approach including an application to EEG data.

  17. A Multiple-Window Video Embedding Transcoder Based on H.264/AVC Standard

    Directory of Open Access Journals (Sweden)

    Tihao Chiang

    2007-01-01

    Full Text Available This paper proposes a low-complexity multiple-window video embedding transcoder (MW-VET based on H.264/AVC standard for various applications that require video embedding services including picture-in-picture (PIP, multichannel mosaic, screen-split, pay-per-view, channel browsing, commercials and logo insertion, and other visual information embedding services. The MW-VET embeds multiple foreground pictures at macroblock-aligned positions. It improves the transcoding speed with three block level adaptive techniques including slice group based transcoding (SGT, reduced frame memory transcoder (RFMT, and syntax level bypassing (SLB. The SGT utilizes prediction from the slice-aligned data partitions in the original bitstreams such that the transcoder simply merges the bitstreams by parsing. When the prediction comes from the newly covered area without slice-group data partitions, the pixels at the affected macroblocks are transcoded with the RFMT based on the concept of partial reencoding to minimize the number of refined blocks. The RFMT employs motion vector remapping (MVR and intra mode switching (IMS to handle intercoded blocks and intracoded blocks, respectively. The pixels outside the macroblocks that are affected by newly covered reference frame are transcoded by the SLB. Experimental results show that, as compared to the cascaded pixel domain transcoder (CPDT with the highest complexity, our MW-VET can significantly reduce the processing complexity by 25 times and retain the rate-distortion performance close to the CPDT. At certain bit rates, the MW-VET can achieve up to 1.5 dB quality improvement in peak signal-to-noise-ratio (PSNR.

  18. 基于Windows API的异步串口通信软件设计%Software Design of Asynchronous Serial Communication Based on Windows API

    Institute of Scientific and Technical Information of China (English)

    黄晓波

    2011-01-01

    Serial port is a common data transmission channel between PC and external serialequipment. When controls of the third party in VC+ + 6. 0 are utilized to realize serial communication, the behavior of real-time is poor and the utilization of system resources is insufficient. In order to improve the speed of serial communication and resource utilization, Windows API function and design concept of asynchronous serial communication based on the multi-thread tecnology and custom message mechanismin are adopted. The methods of developing the multi-thread asynchronous serial communication software in Win32 OS are analyzed. The main thread is the manager of the data acquisition program. The serial port real-time monitoring is implemented in the background by serial port monitoring thread. A stable communication result was achieved.%串口是常用的计算机与外部串行设备之间的教据传输通道,在VC++ 6.0中利用第三方控件实现串口通信时实时性较差,系统资源利用不足,为了提高串口通信的速度和资源利用率,软件采用Windows API函数并基于多线程技术和自定义消息机制的异步串口通信的设计理念,结合串口通信的机理和多线程同步技术,分析了Win32系统下多线程异步串口通信软件的开发方法.软件主线程是数据采集程序的管理者,串口监测线程(辅助线程)在后台对串口进行实时监视,获得了良好稳定的通信效果.

  19. Documentation of Calculation Program and Guideline for Optimal Window Design

    DEFF Research Database (Denmark)

    Vanhoutteghem, Lies; Svendsen, Svend

    Windows affect energy consumption for heating and cooling of buildings and their thermal indoor environment. Standard energy calculation programs do not enable an easy comparison of different window designs, even though this is very important in the early stages of the building design process....... A user-friendly calculation program based on simple input data has recently been developed to assist engineers and architects during the process of selecting suitable windows for residential building design. The program is organised in four steps, which together represent an analysis of how windows......, because this provides a generally improved daylight level, a better thermal indoor environment, and a reduced cooling demand....

  20. Air transparent soundproof window

    Directory of Open Access Journals (Sweden)

    Sang-Hoon Kim

    2014-11-01

    Full Text Available A soundproof window or wall which is transparent to airflow is presented. The design is based on two wave theories: the theory of diffraction and the theory of acoustic metamaterials. It consists of a three-dimensional array of strong diffraction-type resonators with many holes centered on each individual resonator. The negative effective bulk modulus of the resonators produces evanescent wave, and at the same time the air holes with subwavelength diameter existed on the surfaces of the window for macroscopic air ventilation. The acoustic performance levels of two soundproof windows with air holes of 20mm and 50mm diameters were measured. The sound level was reduced by about 30 - 35dB in the frequency range of 400 - 5,000Hz with the 20mm window, and by about 20 - 35dB in the frequency range of 700 - 2,200Hz with the 50mm window. Multi stop-band was created by the multi-layers of the window. The attenuation length or the thickness of the window was limited by background noise. The effectiveness of the soundproof window with airflow was demonstrated by a real installation.

  1. Windows with improved energy performances

    DEFF Research Database (Denmark)

    Laustsen, Jacob Birck; Svendsen, Svend

    2003-01-01

    Heat loss through windows represents a considerable part of the total heat loss from houses. However, apart from providing daylight access and view, windows offer a unique potential for solar gain to be exploited during the heating season. Until now valuation of the energy performance of windows...... with respect to the overall energy performance of windows. By selecting some of the best solutions a new low energy window has been developed for high latitude climates and a prototype manufactured. Simple and realistic improvements such as reducing the frame width and using glass with low iron content have...... be improved considerably in a fairly simple way without increasing the cost....

  2. Window prototype investigations

    DEFF Research Database (Denmark)

    Schultz, Jørgen Munthe

    1996-01-01

    In case of highly insulating glazings the frame construction becomes the thermally weak part of the construction. The heat flow in window frames are analysed and based on the results a thermally improved frame construction is described....

  3. Continuous monitoring of distributed data streams over a time-based sliding window

    DEFF Research Database (Denmark)

    Chan, Ho-Leung; Lam, Tak-Wah; Lee, Lap Kei;

    2012-01-01

    for frequent items and O(k ε 2 logN k ) words for quantiles, where k is the number of distributed data streams, N is the total number of items in the streams that arrive or expire in the window, and ε

  4. Laser-based Online Sliding-window Approach for UAV Loop-closure Detection in Urban Environments

    Directory of Open Access Journals (Sweden)

    Anqing Wang

    2016-04-01

    Full Text Available Online loop-closure detection serves as an essential task for Unmanned Aerial Vehicles (UAVs equipped with laser scanners. Due to the inherent errors in UAVs’ pose estimation, a 3-D reconstruction algorithm is adopted to perform 3-D map building, which establishes probabilistic models of the system according to the assumption of errors. To meet the demand of online loop-closure detection using sequential 2-D laser data, a robust ISW-NDT (incremental sliding-window-based NDT approach is proposed, which compares the appearance similarity between two scans by sliding a window with fixed size. Compared with the conventional 3-D NDT approach, the proposed loop-closure detection algorithm is capable of providing superior performance in large-scale outdoor environments, achieving higher recall rate at 100% precision and ensuring successful online implementation. Experimental results show the validity and robustness of the proposed method.

  5. An Optimization Method of Time Window Based on Travel Time and Reliability

    OpenAIRE

    Fengjie Fu; Dongfang Ma; Dianhai Wang; Wei Qian

    2015-01-01

    The dynamic change of urban road travel time was analyzed using video image detector data, and it showed cyclic variation, so the signal cycle length at the upstream intersection was conducted as the basic unit of time window; there was some evidence of bimodality in the actual travel time distributions; therefore, the fitting parameters of the travel time bimodal distribution were estimated using the EM algorithm. Then the weighted average value of the two means was indicated as the travel t...

  6. Parallel Performance of MPI Sorting Algorithms on Dual-Core Processor Windows-Based Systems

    Directory of Open Access Journals (Sweden)

    Alaa Ismail El-Nashar

    2011-06-01

    Full Text Available Message Passing Interface (MPI is widely used to implement parallel programs. Although Windowsbasedarchitectures provide the facilities of parallel execution and multi-threading, little attention hasbeen focused on using MPI on these platforms. In this paper we use the dual core Window-basedplatform to study the effect of parallel processes number and also the number of cores on theperformance of three MPI parallel implementations for some sorting algorithms.

  7. Security Engineering and Reengineering on Windows 2008 Server Based Distributed Systems

    Directory of Open Access Journals (Sweden)

    Cosmin Tomozei

    2010-06-01

    Full Text Available The objective of this paper is to reflect on the processes of Security Engineering and Reengineering in Distributed Systems, focused being also about the Windows 2008 Servers. It is very important to provide security and integrity to software applications, hardware and data. We will have in consideration the ways of making reengineering process efficient, including optimization of the encryption and authentication stages.

  8. 基于WindowsCE的嵌入式漏磁检测仪ADC驱动程序设计%ADC Driver Program Design of an Embedded Magnetic Flux Leakage Testing Instrument Based on WindowsCE

    Institute of Scientific and Technical Information of China (English)

    于卫刚; 王长龙; 李建增; 张飞龙

    2011-01-01

    This paper gives the structure of this embedded magnetic flux leakage testing instrument based on WindowsCE and introduces the WindowsCE device driver program models. The design method of WindowsCE stream interface driver is expounded by designing the ADC driver of S3C2440A processor. The test results show that the ADC driver designed by this method is efficient and dependable and it provides a good reference for the driver program development of similar devices.%描述了基于WindowsCE的嵌入式漏磁检测仪总体结构设计,介绍了WindowsCE下设备驱动程序模型,并结合S3C2440A处理器的ADC驱动程序设计,详细阐述了基于Windows的流接口驱动程序的设计方法.实验结果表明:利用该方法设计的ADC驱动程序高效可靠,可以为开发类似设备驱动程序提供参考.

  9. Automated brain tumor segmentation in magnetic resonance imaging based on sliding-window technique and symmetry analysis

    Institute of Scientific and Technical Information of China (English)

    Lian Yanyun; Song Zhijian

    2014-01-01

    Background Brain tumor segmentation from magnetic resonance imaging (MRI) is an important step toward surgical planning,treatment planning,monitoring of therapy.However,manual tumor segmentation commonly used in clinic is time-consuming and challenging,and none of the existed automated methods are highly robust,reliable and efficient in clinic application.An accurate and automated tumor segmentation method has been developed for brain tumor segmentation that will provide reproducible and objective results close to manual segmentation results.Methods Based on the symmetry of human brain,we employed sliding-window technique and correlation coefficient to locate the tumor position.At first,the image to be segmented was normalized,rotated,denoised,and bisected.Subsequently,through vertical and horizontal sliding-windows technique in turn,that is,two windows in the left and the right part of brain image moving simultaneously pixel by pixel in two parts of brain image,along with calculating of correlation coefficient of two windows,two windows with minimal correlation coefficient were obtained,and the window with bigger average gray value is the location of tumor and the pixel with biggest gray value is the locating point of tumor.At last,the segmentation threshold was decided by the average gray value of the pixels in the square with center at the locating point and 10 pixels of side length,and threshold segmentation and morphological operations were used to acquire the final tumor region.Results The method was evaluated on 3D FSPGR brain MR images of 10 patients.As a result,the average ratio of correct location was 93.4% for 575 slices containing tumor,the average Dice similarity coefficient was 0.77 for one scan,and the average time spent on one scan was 40 seconds.Conclusions An fully automated,simple and efficient segmentation method for brain tumor is proposed and promising for future clinic use.Correlation coefficient is a new and effective feature for tumor

  10. 基于Windows NT的Open GL三维程序设计%Open GL 3D Programming Based on Windows NT

    Institute of Scientific and Technical Information of China (English)

    高智杰; 陈昌伟; 王仕成

    2003-01-01

    在介绍Open GL的概念以及Open GL/NT体系结构的基础上,重点阐述Windows NT与Open GL的接口机制,以探讨如何利用Open GL进行三维图形的设计,同时给出了4种编程方式.

  11. Implement of Knowledge Management Based on Windows SharePoint Services%使用Windows SharePoint Services实现企业知识管理

    Institute of Scientific and Technical Information of China (English)

    施彬

    2004-01-01

    本文以Microsoft.NET Framework和Windows SharePoint Services技术为基础,以员工、团队、项目、组织为主体实现了信息组织、分享、沟通和创新等知识管理行为,提高了企业的协同工作和项目管理能力,起到了很好的效果.

  12. Mobil terminal Windows CE exploiting based on S3C2440%基于S3C2440移动终端的Windows CE开发

    Institute of Scientific and Technical Information of China (English)

    辛雁峰; 夏海宝; 易春海

    2009-01-01

    本文阐明了基于具体硬件平台的嵌入式操作系统Windows CE开发和定制的主要步骤;并深入研究了利用PlatformBuilder对内核进行裁剪的关键技术;同时时开发过程中遇到的问题提出具体解决方案.

  13. Thermal bridges of modern windows

    DEFF Research Database (Denmark)

    Hansen, Ernst Jan de Place; Møller, Eva B.; Nielsen, Anker;

    2013-01-01

    With its focus on reduced energy consumption, contemporary housing construction requires a highly insulated and airtight building envelope with as few thermal bridges as possible.Windows must be carefully designed, as thermal bridges can lead to surface condensation or mold growth, even...... if the window has an U-factor of 1 W/(m2·K) or lower. This paper describes the development of modern, energy efficient Danish windows with reduced thermal bridges. It focuses on materials, geometry, and sealing of window panes based on a literature review. Examples of modern windows are presented. Experience...

  14. DR_SEQAN: a PC/Windows-based software to evaluate drug resistance using human immunodeficiency virus type 1 genotypes

    Directory of Open Access Journals (Sweden)

    Menéndez-Arias Luis

    2006-03-01

    Full Text Available Abstract Background Genotypic assays based on DNA sequencing of part or the whole reverse transcriptase (RT- and protease (PR-coding regions of the human immunodeficiency virus type 1 (HIV-1 genome have become part of the routine clinical management of HIV-infected individuals. However, the results are difficult to interpret due to complex interactions between mutations found in viral genes. Results DR_SEQAN is a tool to analyze RT and PR sequences. The program output includes a list containing all of the amino acid changes found in the query sequence in comparison with the sequence of a wild-type HIV-1 strain. Translation of codons containing nucleotide mixtures can result in potential ambiguities or heterogeneities in the amino acid sequence. The program identifies all possible combinations of 2 or 3 amino acids that derive from translation of triplets containing nucleotide mixtures. In addition, when ambiguities affect codons relevant for drug resistance, DR_SEQAN allows the user to select the appropriate mutation to be considered by the program's drug resistance interpretation algorithm. Resistance is predicted using a rule-based algorithm, whose efficiency and accuracy has been tested with a large set of drug susceptibility data. Drug resistance predictions given by DR_SEQAN were consistent with phenotypic data and coherent with predictions provided by other publicly available algorithms. In addition, the program output provides two tables showing published drug susceptibility data and references for mutations and combinations of mutations found in the analyzed sequence. These data are retrieved from an integrated relational database, implemented in Microsoft Access, which includes two sets of non-redundant core tables (one for combinations of mutations in the PR and the other for combinations in the RT. Conclusion DR_SEQAN is an easy to use off-line application that provides expert advice on HIV genotypic resistance interpretation. It is

  15. Manufacturing Supply Chain Optimization Problem with Time Windows Based on Improved Orthogonal Genetic Algorithm

    Institute of Scientific and Technical Information of China (English)

    ZHANG Xinhua

    2006-01-01

    Aim to the manufacturing supply chain optimization problem with time windows, presents an improved orthogonal genetic algorithm to solve it. At first, we decompose this problem into two sub-problems (distribution and routing) plus an interface mechanism to allow the two algorithms to collaborate in a master-slave fashion, with the distribution algorithm driving the routing algorithm. At second, we describe the proposed improved orthogonal genetic algorithm for solving giving problem detailedly. Finally, the examples suggest that this proposed approach is feasible, correct and valid.

  16. Enhancing selective capacity through venture bases

    DEFF Research Database (Denmark)

    Vintergaard, Christian; Husted, Kenneth

    2003-01-01

    , the few successful investments carry the costs of many moreinvestment decisions. It would obviously be attractive to improve the ability to `pick thewinners'. In this paper, we develop a conceptual framework for understanding how firms`involvement in establishing and nurturing the venture base (the idea...... creation phase)enhances their ability to select ventures.Keywords: Corporate venturing, venture base, selection, network....

  17. Design of GPIB Virtual Instrument Based on Lab Windows/CVI%基于Lab Windows/CVI的GPIB虚拟仪器的设计

    Institute of Scientific and Technical Information of China (English)

    张艳红

    2006-01-01

    利用Lab windows/CVI的GPIB虚拟仪器远程控制系统,由FSP频谱分析仪、信号发生器、功率放大器等仪器组成,并通过GPIB总线与主控计算机相连.主控计算机内安装IEEE488标准接口卡,通过软件可对各测控设备实现远控和自动或半自动操作,同时对重要数据进行分析和储存.

  18. 基于Lab Windows/CVI的虚拟示波器的设计%Research of the virtual oscillograph bases on lab windows/CVI

    Institute of Scientific and Technical Information of China (English)

    刘琳; 周振辉

    2009-01-01

    基于虚拟仪器平台Lab Windows/CVI开发设计了一种多功能虚拟示波器,同时介绍了该示波器的数据采集系统的设置方法和系统软件的总体设计.实验结果表明,该虚拟示波器实现了传统示波器的基本功能,并具有较强的灵活性.

  19. 基于Windows 2003 Server Active Directory的计算机房管理%A Computer Room Management Pattern Based on Windows 2003 Server Active Directory

    Institute of Scientific and Technical Information of China (English)

    杨畅; 胡亮

    2009-01-01

    Active Directory是Windows2003 Server全新的目录管理方式,它是一种层次化、树状、可扩展、可伸缩的目录结构.文章通过介绍活动目录的相关知识和安装与配置,在计算机房的具体配置,应用于机房的管理中,提高管理效率.

  20. Substrate Selection for Fundamental Studies of Electrocatalysts and Photoelectrodes: Inert Potential Windows in Acidic, Neutral, and Basic Electrolyte

    OpenAIRE

    Benck, Jesse D.; Blaise A Pinaud; Yelena Gorlin; Jaramillo, Thomas F.

    2014-01-01

    The selection of an appropriate substrate is an important initial step for many studies of electrochemically active materials. In order to help researchers with the substrate selection process, we employ a consistent experimental methodology to evaluate the electrochemical reactivity and stability of seven potential substrate materials for electrocatalyst and photoelectrode evaluation. Using cyclic voltammetry with a progressively increased scan range, we characterize three transparent conduc...

  1. Sunlight Responsive Thermochromic Window System

    Energy Technology Data Exchange (ETDEWEB)

    Millett, F,A; Byker,H, J

    2006-10-27

    Pleotint has embarked on a novel approach with our Sunlight Responsive Thermochromic, SRT™, windows. We are integrating dynamic sunlight control, high insulation values and low solar heat gain together in a high performance window. The Pleotint SRT window is dynamic because it reversibly changes light transmission based on thermochromics activated directly by the heating effect of sunlight. We can achieve a window package with low solar heat gain coefficient (SHGC), a low U value and high insulation. At the same time our windows provide good daylighting. Our innovative window design offers architects and building designers the opportunity to choose their desired energy performance, excellent sound reduction, external pane can be self-cleaning, or a resistance to wind load, blasts, bullets or hurricanes. SRT windows would provide energy savings that are estimated at up to 30% over traditional window systems. Glass fabricators will be able to use existing equipment to make the SRT window while adding value and flexibility to the basic design. Glazing installers will have the ability to fit the windows with traditional methods without wires, power supplies and controllers. SRT windows can be retrofit into existing buildings,

  2. An improved solution of local window parameters setting for local singularity analysis based on Excel VBA batch processing technology

    Science.gov (United States)

    Zhang, Daojun; Cheng, Qiuming; Agterberg, Frits; Chen, Zhijun

    2016-03-01

    In this paper Excel VBA is used for batch calculation in Local Singularity Analysis (LSA), which is for the information extracting from different kinds of geoscience data. Capabilities and advantages of a new module called Batch Tool for Local Singularity Index Mapping (BTLSIM) are: (1) batch production of series of local singularity maps with different settings of local window size, shape and orientation parameters; (2) local parameter optimization based on statistical tests; and (3) provision of extra output layers describing how spatial changes induced by parameter optimization are related to spatial structure of the original input layers.

  3. A study and development of Windows based program of reliability analysis for assessing service life of cracked connections

    Directory of Open Access Journals (Sweden)

    Suchart Limkatanyu

    2006-09-01

    Full Text Available The development of a Windows based framework to undertake probabilistic fracture mechanics studies is reported. The reliability method used in the program is Monte-Carlo Simulation method. The results of the computation of the program are stress intensity factor, reliability index and probability of failure. The probabilistic studies of cruciform welded joint containing Lack of Penetration (LOP defect and T-butt geometry containing surface crack at weld toe are performed in both critical crack growth and fatigue problem. The results can be used as an indicator for assuring the safety of this particular type of connection. It can also be used as a design criterion for the connection.

  4. 基于Windows XP+RTX的模拟测试系统开发%Development of Emulation and Test System Based on Windows Adding in RTX Technology

    Institute of Scientific and Technical Information of China (English)

    戴哲; 田颖; 胡春晓

    2016-01-01

    The emulation and test system,which is developed by model emulation technology, semi-physical emulation technology and Windows XP+RTX,is used to check and test the gunship weapon system and component equipment under the condition of complex battleground. This system provide a technical way and test method for fully checking gunship weapon system function,and now the system had applied to gunship weapon system engineering practice successfully.%采用建模仿真技术、半实物仿真技术和Windows XP+RTX技术开发研制的模拟测试系统,用于在复杂试验条件下,对舰炮武器系统及组成设备进行检验评估,是一种充分检验舰炮武器系统性能的技术途径和试验方法,目前该系统已成功应用于舰炮武器系统工程实践中。

  5. A Study on Software Structure of GIS Based on Windows DNA Framework%基于Windows DNA 框架的GIS软件结构初探

    Institute of Scientific and Technical Information of China (English)

    黄秋; 施春华

    2001-01-01

    As a emphasis in the field of GIS,GIS software arch itecture is increasingly discussed.This paper introduces Windows DNA,then focuse s on a framework of GIS software architecture.It's logical structure and real st ructure are also concerned.This kind of GIS software architecture can easily enc apsulate difference structure and difference location data of GIS into a compone nt and quickly add and drop a GIS function component. It is a shortcut to develo p a GIS software.%GIS软件结构体系作为GIS研究的一个重点,日益受到人们的重视。本 文在简介Windows DNA结构体系后,提出了一种GIS的软件结构框架,并详述该结构的逻辑组 成及物理配置。这种结构的GIS软件可以封装异构异地GIS数据和快速的添加及删除GIS功能 组件,是快速开发GIS软件的一个途径。

  6. 基于Windows系统启动Linux的设计与实现%Design and Implementation of Booting Linux Based on Windows system

    Institute of Scientific and Technical Information of China (English)

    兰强

    2013-01-01

      为了解决在一台计算机上安装Windows和Linux,且相互影响最小,以Windows XP和Fedora 8.0为例,根据操作系统的启动原理,使用Linux磁盘管理命令设计并实现了从Windows启动Linux,优点在于删除Linux对Win-dows无任何影响,进而可以在此基础上设计并实现Windows启动多个操作系统.%In order to solve the installation of Windows and Linux on a computer, and minimize the mutual influence based on Windows XP and Fedora 8 as an example, booting Linux from Windows are designed and implemented in this article. It’s advantage is to remove or change Linux without any effect on Windows. On this basis, Booting multi operation system from Windows can be designed and implemented. This is a good choice for the Windows-based users to learn and research Linux system at present.

  7. Polystyrene Based Silver Selective Electrodes

    Directory of Open Access Journals (Sweden)

    Shiva Agarwal

    2002-06-01

    Full Text Available Silver(I selective sensors have been fabricated from polystyrene matrix membranes containing macrocycle, Me6(14 diene.2HClO4 as ionophore. Best performance was exhibited by the membrane having a composition macrocycle : Polystyrene in the ratio 15:1. This membrane worked well over a wide concentration range 5.0×10-6–1.0×10-1M of Ag+ with a near-Nernstian slope of 53.0 ± 1.0 mV per decade of Ag+ activity. The response time of the sensor is <15 s and the membrane can be used over a period of four months with good reproducibility. The proposed electrode works well in a wide pH range 2.5-9.0 and demonstrates good discriminating power over a number of mono-, di-, and trivalent cations. The sensor has also been used as an indicator electrode in the potentiometric titration of silver(II ions against NaCl solution. The sensor can also be used in non-aqueous medium with no significant change in the value of slope or working concentration range for the estimation of Ag+ in solution having up to 25% (v/v nonaqueous fraction.

  8. 基于LabWindows/CVI的便携式电源控制器测试系统设计%Design of portable Power Control Unit test system based on LabWindows/CVI

    Institute of Scientific and Technical Information of China (English)

    马强; 王博阳

    2011-01-01

    In order to satisfy the requirement of the Power Control Unit, the design of the Power Control Unit test system based on LabWindows/CVI is designed in this paper. The hardware system is used to produce the input signals of PCU. The software system adopts the LabWindows/CVI software as development environment The Power Control Unit test system can accomplish the output signals test of the Power Control Unit The experiment and application show that this test system has good performance, and achieve the design requirement%为了实现对电源控制器(PCU)检测的需求,提出了一种基于LabWindows/CVI的电源控制器的测试系统设计方案,并完成系统的软硬件设计.该系统的硬件部分主要用来模拟PCU的各种输入信号,软件部分采用LabWindows/CVI进行编程,能够完成对其输出信号进行检测.实际应用表明,该系统具有操作简便、测试准确的特点,达到了设计要求.

  9. Application Research of Data Acquisition in Wind Tunnel System Based on LabWindows/CVI%基于LabWindows/CVI风洞数据采集系统的应用研究

    Institute of Scientific and Technical Information of China (English)

    李一滨; 李蓓

    2011-01-01

    介绍了基于LabWindows/CVI虚拟仪器开发环境下动态风洞实验数据的采集.测试系统由主控(上位机)和从控(下位机)两部分构成,上位机用LabWindows/CVI开发,为用户提供良好的测试界面,下位机实现对动态系统压力测试的实时测量.该系统具有友好的人机交互界面和易操作性,大大提高了测量的有效性和可靠性.%The data acquisition about dynanuc wind tunnel test which based on the yutual instrument in LabWindows/CVI is presented.The test system consists of the client( host computer) and the servers ( hypogyny computer) . The client( host computer) provides a good test interface for the users with the LabWindows/CVI.The servers ( hypogyny computer) provides a real-time measurement about Lhe stress tests. This system possesses a friendly man-machine interface and easy operating, the effectiveness and reliability of measurement are increased greatly.

  10. Performance analysis of sliding window filtering of two dimensional signals based on stream data processing systems

    Science.gov (United States)

    Kazanskiy, Nikolay; Protsenko, Vladimir; Serafimovich, Pavel

    2016-03-01

    This research article contains an experiment with implementation of image filtering task in Apache Storm and IBM InfoSphere Streams stream data processing systems. The aim of presented research is to show that new technologies could be effectively used for sliding window filtering of image sequences. The analysis of execution was focused on two parameters: throughput and memory consumption. Profiling was performed on CentOS operating systems running on two virtual machines for each system. The experiment results showed that IBM InfoSphere Streams has about 1.5 to 13.5 times lower memory footprint than Apache Storm, but could be about 2.0 to 2.5 slower on a real hardware.

  11. Windows-based acquisition and image reconstruction for a multi-element imaging system

    International Nuclear Information System (INIS)

    A system has been developed for acquiring data from a multi-element gamma ray imaging device. Data is acquired and stored in a flexible list mode format, which allows all necessary analyses and hardware diagnostics to be performed in one application. This system is currently used with a Compton scatter camera for detector calibration, data collection, count rate display for individual elements, histogram display, and image reconstruction and display. The software is implemented on a personal computer with a 33 MHz 80486 processor and 8 Mb of RAM under Microsoft Windows copyright Version 3.1. The maximum acquisition rate of the system is 8,000 counts per second. The system allows other applications to operate while it is acquiring data and has been written to easily accommodate additional analysis tools and different imaging systems

  12. Slim-Filter: an interactive windows-based application for illumina genome analyzer data assessment and manipulation

    Directory of Open Access Journals (Sweden)

    Golovko Georgiy

    2012-07-01

    Full Text Available Abstract Background The emergence of Next Generation Sequencing technologies has made it possible for individual investigators to generate gigabases of sequencing data per week. Effective analysis and manipulation of these data is limited due to large file sizes, so even simple tasks such as data filtration and quality assessment have to be performed in several steps. This requires (potentially problematic interaction between the investigator and a bioinformatics/computational service provider. Furthermore, such services are often performed using specialized computational facilities. Results We present a Windows-based application, Slim-Filter designed to interactively examine the statistical properties of sequencing reads produced by Illumina Genome Analyzer and to perform a broad spectrum of data manipulation tasks including: filtration of low quality and low complexity reads; filtration of reads containing undesired subsequences (such as parts of adapters and PCR primers used during the sample and sequencing libraries preparation steps; excluding duplicated reads (while keeping each read’s copy number information in a specialized data format; and sorting reads by copy numbers allowing for easy access and manual editing of the resulting files. Slim-Filter is organized as a sequence of windows summarizing the statistical properties of the reads. Each data manipulation step has roll-back abilities, allowing for return to previous steps of the data analysis process. Slim-Filter is written in C++ and is compatible with fasta, fastq, and specialized AS file formats presented in this manuscript. Setup files and a user’s manual are available for download at the supplementary web site (https://www.bioinfo.uh.edu/Slim_Filter/. Conclusion The presented Windows-based application has been developed with the goal of providing individual investigators with integrated sequencing reads analysis, curation, and manipulation capabilities.

  13. Independent window UEP scheme based on ratejess codes%基于无码率码的独立窗不等差错保护方案

    Institute of Scientific and Technical Information of China (English)

    陈英; 顾术实; 焦健; 李云鹤; 吴绍华; 张钦宇

    2014-01-01

    To match the multimedia service transmission,an unequal error protection (UEP)scheme based on the independent window LT (IW-LT)code is proposed.According to the level of importance,the original data are divided into independent windows and encoded by rateless LT codes.The asymptotic decoding perform-ance of IW-LT codes is derived by the AND-OR tree analysis technique.Moreover,to accurately match the ex-pected UEP gain and decoding overhead,multi-objective genetic algorithms are introduced to optimize the degree distribution and probabilities of selecting windows,which enhance the flexibility of the IW-LT UEP scheme. The simulation results show that,compared with the existing rateless coding UEP scheme,IW-LT codes can obtain a lower decoding error rate under the fixed parameters of UEP property.%提出一种能够匹配多媒体业务特性的独立窗口 LT 码(independent window LT,IW-LT)不等差错保护方案,采用无码率 LT 码对不同重要等级的数据分别进行独立选窗和编码。通过与或树分析法推导了 IW-LT 码的渐近译码性能,并结合多目标进化算法联合优化编码度分布和选窗概率,以精确匹配预设的不等保护增益及译码开销,增加了不等差错保护方案的灵活性。仿真证明,IW-LT 码与现有的无码率码不等差错保护方案相比,能在精确匹配不等差错性能参数的前提下,获得更低的译码差错概率。

  14. Energy saving using solar filters with iron base in windows; Ahorro de energia usando filtros solares con base en hierro en ventanas

    Energy Technology Data Exchange (ETDEWEB)

    Chavez Galan, Jesus

    2003-07-01

    For the high temperature seasons, the radiation emitted by the sun later introduced through the windows, provokes a great thermal gain in the buildings causing within them an excessive warming. For the cold seasons, the exterior is at low temperature and the window is the main element through which the building losses the heat generated in the interior. The former turns out into an elevated energy consumption (mainly electricity) to obtain the conditions of human thermal comfort; this altogether with the growing energy demand that the residential, commercial and public sector experiences in Mexico, constitutes a serious problem. As a proposal for the solution to the problem of thermal discomfort generated in the interior of the buildings because of the inadequate properties of the construction materials, in this work were developed solar filers with iron base by means of which it is obtained a selective control of the solar radiation that is transmitted through the windows. These solar filters consist in thin films of FeO deposited over subtracts of lime-soda glass (the most used in our country for buildings) of 600 x 300 x 3 mm, by means of the sputtering technique added with a radio frequency and flat magnetrons, starting from a pure iron target of 127 x 254 mm and using an argon plasma. To obtain the desired oxidation degree in the iron, small samples (45 x 22 mm) were subjected to a heating process in a reducing atmosphere constituted by 50% H{sub 2} + 50% N{sub 2} for a period of time of 10 minutes at a temperature of 400 centigrade. The solar filters with the FeO base present a transmissibility of 30.2 % for the visible interval of the electromagnetic spectrum (radiation with a wave length of 380-780 nm) and of 39.9 % for the near infrared (radiation with a wave length of 780-2500 nm); while the reflectivity is of 17.5 and 19% for the visible intervals and near infrared of electromagnetic spectrum respectively. A simulation was performed by means of the

  15. Assessment of dual selection in grid based selectivity systems

    DEFF Research Database (Denmark)

    Sistiaga, Manu; Herrmann, Bent; Grimaldo, Eduardo;

    2010-01-01

    Herein we propose a method to assess dual selection in grid based selectivity systems. This method takes into account the parameter “grid contact likelihood” (Cgrid), which can be interpreted as the proportion of fish that actually makes an attempt to escape through the grid. In a case study of the...... Barents Sea cod and haddock trawl fishery, we demonstrate that our model describes the experimental data better than the models previously used to fit similar data. For both cod and haddock, Cgrid was significantly smaller than 1.0, which demonstrated the relevance of the proposed model. Cgrid was higher...... simulation and using the case study results as the baseline, we investigated and compared the precision of the selectivity parameters estimated with our model for two different experimental setups. The results show that except for some extreme situations, the data for such studies need to be collected with a...

  16. Window shopping

    OpenAIRE

    Shy, Oz

    2013-01-01

    The terms "window shopping" and "showrooming" refer to the activity in which potential buyers visit a brick-and-mortar store to examine a product but end up either not buying it or buying the product from an online retailer. This paper analyzes potential buyers who differ in their preference for after-sale service that is not offered by online retailers. For some buyers, making a trip to the brick-and-mortar store is costly; however, going to the store to examine the product has the advantage...

  17. Rough set-based feature selection method

    Institute of Scientific and Technical Information of China (English)

    ZHAN Yanmei; ZENG Xiangyang; SUN Jincai

    2005-01-01

    A new feature selection method is proposed based on the discern matrix in rough set in this paper. The main idea of this method is that the most effective feature, if used for classification, can distinguish the most number of samples belonging to different classes. Experiments are performed using this method to select relevant features for artificial datasets and real-world datasets. Results show that the selection method proposed can correctly select all the relevant features of artificial datasets and drastically reduce the number of features at the same time. In addition, when this method is used for the selection of classification features of real-world underwater targets,the number of classification features after selection drops to 20% of the original feature set, and the classification accuracy increases about 6% using dataset after feature selection.

  18. The Design of Vehicle Navigation Terminal based on Embedded Windows CE%基于Windows CE嵌入式车载导航终端的设计

    Institute of Scientific and Technical Information of China (English)

    廖劲光; 韩波; 廖惜春

    2009-01-01

    对嵌入式操作系统Windows CE.net的源代码进行了大量的修改,同时应用EVC++ 4.0开发应用软件,实现了车载导航系统的各项功能.在ARM9目标板上下载操作系统镜像和应用软件,经测试,导航系统的操作系统运行稳定,能准确接收GPS、GPRS数据,且接收到GPS数据后能准确地在电子地图上显示并指示方向.

  19. 基于LabWindows/CVI的电能质量分析仪%Power Quality Analyzer Based on LabWindows/CVI

    Institute of Scientific and Technical Information of China (English)

    陈莉; 张宏立; 张瑞明

    2011-01-01

    To against the shortcomings of traditional power quality analyzing systems, I. E. , limited storage capacity and monotonous display functions, etc. , the hardware system combines high performance data acquisition module PCL-818H and industrial PC as the core is designed. The system can collect and analyze the real-time signals, in addition, by adopting the powerful test and analysis functions of virtual instrument LabWindows/ C VI, the calculations of phases and amplitudes of fundamental wave and harmonic waves; voltage deviation, distortion rate of active power and reactive power; and software of data storage function are completed. By repeating tests, it is shown that the analyzer features high accuracy, ease to read, reliable operation and high cost effective.%针对传统电能质量分析系统存在存储容量小、显示功能单调等缺点,设计了以高性能数据采集卡PCL-818H与工业控制计算机为核心的硬件系统.该系统对实时信号进行采集与分析,并利用虚拟仪器LabWindows/CVI的强大测试分析功能,完成了基波和谐波的幅值与相位、电压偏差、有功和无功畸变率等参数计算,且具有数据存盘的软件功能.通过反复验证,该分析仪具有精度较高、直观易读、工作可靠和性价比高等特点.

  20. 基于Windows CE的嵌入式无人艇控制系统设计%Embedded Unmanned Surface Vehicle Control System Based on Windows CE

    Institute of Scientific and Technical Information of China (English)

    江先军

    2015-01-01

    Unmanned surface vehicle (USV)control system is an embedded system that integrate navigation control system,global position system and wireless communication system.This design use the APAX general industrial control er of Advantech as the hardware platform,and windows CE embedded operating system instal ed on it,then use Visual C# as the computer lan-guage develop the embedded application under the VisualStudio 2005 environment.ln the end,USV control system complet-ing the sensor data acquisition,task execution control and motion control,this USV control system is stable and reliable.%无人艇控制系统是集航行控制系统、全球卫星定位系统、无线通信系统等为一体的嵌入式系统,设计采用研华公司的APAX系列通用工业控制器作为硬件平台,对其定制安装了Microsoft Windows CE嵌入式操作系统,并用Visual C#语言在Visual Studio 2005开发环境下编写了嵌入式应用程序,从而无人艇控制系统完成了传感器数据采集、任务执行控制和运动控制,系统运行稳定可靠。

  1. A Monte Carlo simulation study of the effect of energy windows in computed tomography images based on an energy-resolved photon counting detector

    Science.gov (United States)

    Lee, Seung-Wan; Choi, Yu-Na; Cho, Hyo-Min; Lee, Young-Jin; Ryu, Hyun-Ju; Kim, Hee-Joung

    2012-08-01

    The energy-resolved photon counting detector provides the spectral information that can be used to generate images. The novel imaging methods, including the K-edge imaging, projection-based energy weighting imaging and image-based energy weighting imaging, are based on the energy-resolved photon counting detector and can be realized by using various energy windows or energy bins. The location and width of the energy windows or energy bins are important because these techniques generate an image using the spectral information defined by the energy windows or energy bins. In this study, the reconstructed images acquired with K-edge imaging, projection-based energy weighting imaging and image-based energy weighting imaging were simulated using the Monte Carlo simulation. The effect of energy windows or energy bins was investigated with respect to the contrast, coefficient-of-variation (COV) and contrast-to-noise ratio (CNR). The three images were compared with respect to the CNR. We modeled the x-ray computed tomography system based on the CdTe energy-resolved photon counting detector and polymethylmethacrylate phantom, which have iodine, gadolinium and blood. To acquire K-edge images, the lower energy thresholds were fixed at K-edge absorption energy of iodine and gadolinium and the energy window widths were increased from 1 to 25 bins. The energy weighting factors optimized for iodine, gadolinium and blood were calculated from 5, 10, 15, 19 and 33 energy bins. We assigned the calculated energy weighting factors to the images acquired at each energy bin. In K-edge images, the contrast and COV decreased, when the energy window width was increased. The CNR increased as a function of the energy window width and decreased above the specific energy window width. When the number of energy bins was increased from 5 to 15, the contrast increased in the projection-based energy weighting images. There is a little difference in the contrast, when the number of energy bin is

  2. Windowed correlation: a suitable tool for providing dynamic fMRI-based functional connectivity neurofeedback on task difficulty.

    Directory of Open Access Journals (Sweden)

    Anna Zilverstand

    Full Text Available The goal of neurofeedback training is to provide participants with relevant information on their ongoing brain processes in order to enable them to change these processes in a meaningful way. Under the assumption of an intrinsic brain-behavior link, neurofeedback can be a tool to guide a participant towards a desired behavioral state, such as a healthier state in the case of patients. Current research in clinical neuroscience regarding the most robust indicators of pathological brain processes in psychiatric and neurological disorders indicates that fMRI-based functional connectivity measures may be among the most important biomarkers of disease. The present study therefore investigated the general potential of providing fMRI neurofeedback based on functional correlations, computed from short-window time course data at the level of single task periods. The ability to detect subtle changes in task performance with block-wise functional connectivity measures was evaluated based on imaging data from healthy participants performing a simple motor task, which was systematically varied along two task dimensions representing two different aspects of task difficulty. The results demonstrate that fMRI-based functional connectivity measures may provide a better indicator for an increase in overall (motor task difficulty than activation level-based measures. Windowed functional correlations thus seem to provide relevant and unique information regarding ongoing brain processes, which is not captured equally well by standard activation level-based neurofeedback measures. Functional connectivity markers, therefore, may indeed provide a valuable tool to enhance and monitor learning within an fMRI neurofeedback setup.

  3. Distributed mass data acquisition system based on PCs and windows NT for LHD fusion plasma experiment

    International Nuclear Information System (INIS)

    A new data acquisition and management system has been developed for the LHD experiment. It has the capability to process 100 MB - 1 GB raw data within a few tens seconds after every plasma discharge. It employs wholly distributed and loosely-tied parallel tasking structure through a fast network, and the cluster of the distributed database severs seems to be a virtual macro-machine as a whole. A PC/Windows NT computer is installed for each diagnostics data acquisition of about 30 kinds, and it controls CAMAC digitizers through the optical SCSI extenders. The diagnostic timing system consists of some kinds of VME modules that are installed to remotely control the diagnostic devices in real-time. They can, as a whole system, distribute the synchronous sampling clocks and programmable triggers for measurement digitizers. The data retrieving terminals can access database as application service clients, and are functionally separated from the data acquisition severs by way of the switching Ethernet. (author)

  4. Buffer Map Message Compression Based on Relevant Window in P2P Streaming Media System

    CERN Document Server

    Li, Chunxi; Chiu, DahMing

    2011-01-01

    The overhead traffic for buffer map message exchange cannot be neglectable in the engineering practices of some most popular P2P streaming media systems like PPLive and UUSee. In this paper, we for the first time find this issue and bring in some solutions. Creatively, the vital concept of relevant window is introduced and two crucial but easily overlooked principles involving the nature features of BM exchange are discovered so as to lay a solid foundation for later in-depth discussion. We first present two original efficient BM compression schemes, the feasibilities of which are strictly proved from the point of view of mathematics. Moreover, the average length of the compressed BM is deduced theoretically. The numerical results computed with UUSee's system parameters confirm that the size of bitmap can be reduced by 86% and 90% from 456 bits down to only 66 bits and 46 bits respectively according to two methods we presented, comparing to the traditional algorithm used by UUSee which can decrease the size b...

  5. Multi-Sliding Time Windows Based Changing Trend of Mean Temperature and Its Association with the Global-Warming Hiatus

    Institute of Scientific and Technical Information of China (English)

    石岩; 翟盘茂; 江志红

    2016-01-01

    Based on three global annual mean surface temperature time series and three Chinese annual mean surface air temperature time series, climate change trends on multiple timescales are analyzed by using the trend estimation method of multi-sliding time windows. The results are used to discuss the so-called global-warming hiatus during 1998–2012. It is demonstrated that different beginning and end times have an obvious effect on the results of the trend estimation, and the implications are particularly large when using a short window. The global-warming hiatus during 1998–2012 is the result of viewing temperature series on short timescales;and the events similar to it, or the events with even cold tendencies, have actually occurred many times in history. Therefore, the global-warming hiatus is likely to be a periodical feature of the long-term temperature change. It mainly reflects the decadal variability of temperature, and such a phenomenon in the short term does not alter the overall warming trend in the long term.

  6. Multi-sliding time windows based changing trend of mean temperature and its association with the global-warming hiatus

    Science.gov (United States)

    Shi, Yan; Zhai, Panmao; Jiang, Zhihong

    2016-04-01

    Based on three global annual mean surface temperature time series and three Chinese annual mean surface air temperature time series, climate change trends on multiple timescales are analyzed by using the trend estimation method of multi-sliding time windows. The results are used to discuss the so-called global-warming hiatus during 1998-2012. It is demonstrated that different beginning and end times have an obvious effect on the results of the trend estimation, and the implications are particularly large when using a short window. The global-warming hiatus during 1998-2012 is the result of viewing temperature series on short timescales; and the events similar to it, or the events with even cold tendencies, have actually occurred many times in history. Therefore, the global-warming hiatus is likely to be a periodical feature of the long-term temperature change. It mainly reflects the decadal variability of temperature, and such a phenomenon in the short term does not alter the overall warming trend in the long term.

  7. Windows Azure mobile services

    CERN Document Server

    Johnson, Bruce

    2013-01-01

    Get up and running with Windows Azure Mobile Services Windows Azure Mobile Services (WAMS) is a turn-key backend solution for applications, mobile or otherwise, to utilize structured storage in the cloud. It includes basic data access functionality and built-in authentication with Microsoft Account, Facebook, Twitter and Google, as well as push notification to the client app. This compact, to the point book gives you just what you need to get up and running with these tools. Demonstrates how to add, update, delete and retrieve data using standard .NET classes or REST-based requestsDescribes h

  8. Professional Windows Workflow Foundation

    CERN Document Server

    Kitta, Todd

    2007-01-01

    If you want to gain the skills to build Windows Workflow Foundation solutions, then this is the book for you. It provides you with a clear, practical guide on how to develop workflow-based software and integrate it into existing technology landscapes. Throughout the pages, you'll also find numerous real-world examples and sample code that will help you to get started quickly.Each major area of Windows Workflow Foundation is explored in depth along with some of the fundamentals operations related to generic workflow applications. You'll also find detailed coverage on how to develop workflow in

  9. Development of windows based software to analyze fluorescence decay with time-correlated single photon counting (TCSPC) setup

    CERN Document Server

    Mallick, M B; Ravindranath, S V G

    2002-01-01

    A VUV spectroscopic facility for studies in photophysics and photochemistry is being set up at INDUS-I synchrotron source, CAT, Indore. For this purpose, a data acquisition system based on time-correlated single photon counting method is being developed for fluorescence lifetime measurement. To estimate fluorescence lifetime from the data collected with this sytem, a Windows based program has been developed using Visual Basic 5.0. It uses instrument response function (IRF) and observed decay curve and estimates parameters of single exponential decay by least square analysis and Marquardt method as convergence mechanism. Estimation of parameters was performed using data collected with a commercial setup. Goodness of fit was judged by evaluating chi R sup 2 , weighted residuals and autocorrelation function. Performance is compared with two commercial software packages and found to be satisfactory.

  10. Exploration and Practice of Using Typical Software Vulnerabilities Based on Windows%基于 Windows 的软件安全典型漏洞利用策略探索与实践

    Institute of Scientific and Technical Information of China (English)

    关通; 任馥荔; 伟平; 张浩

    2014-01-01

    With the rapid development of the global information technology, computer software has become the important engine of the world economy, science and technology, military and social development. The core of information security is attached to the security mechanism of the operating system and software vulnerabilities. Software vulnerability itself can not constitute attack, software vulnerability exploiting make the attack possible. This article is based on the Windows operating system, mainly analyzes the principles of some typical software vulnerabilities as well as the common ways to exploit software vulnerabilities, comparing them. in different environment.The article also simply analyzes the protective effect to software security and the hinder to software vulnerability exploiting of Windows security mechanisms. The article emphatically does some explorations and practices on exploiting several typical software vulnerabilities, analyzing the fragility of Windows security mechanisms by using the current popular methods of bypassing security mechanisms.%随着全球信息化的迅猛发展,计算机软件已成为世界经济、科技、军事和社会发展的重要引擎。信息安全的核心在于其所依附的操作系统的安全机制以及软件本身存在的漏洞。软件漏洞本身无法构成攻击,软件漏洞利用使得把漏洞转化为攻击变为可能。文章立足于 Windows 操作系统,主要分析了一些常用软件的典型漏洞原理以及常见的利用方法,比较了不同利用方法在不同环境下的性能优劣,并简单分析了 Windows 的安全机制对软件的防护作用以及对软件漏洞利用的阻碍作用。文章着重对几种典型漏洞进行了软件漏洞利用的探索和实践,并使用当前流行的对安全机制的绕过方法分析了 Windows 几种安全机制的脆弱性。

  11. Windows : Optical Performance and Energy Efficiency

    OpenAIRE

    Karlsson, Joakim

    2001-01-01

    This thesis treats angle-resolved optical properties and the energy efficiency of windows. A theoretical evaluation of optical and thermal properties of windows is briefly surveyed and the energy performance of a large selection of windows, under different conditions, is examined. In particular, angle dependent optical properties are analysed. A new model assessing angle dependence of the total solar energy transmittance, g, of windows is presented. A comparison of simple models for angle-dep...

  12. Window opening behaviour: simulations of occupant behaviour in residential buildings using models based on a field survey

    DEFF Research Database (Denmark)

    Valentina, Fabi; Andersen, Rune Korsholm; Corgnati, Stefano Paolo

    2012-01-01

    Window opening behaviour has been shown to have a significant impact on airflow rates and hence energy consumption. Nevertheless, the inhabitant behaviour related to window opening in residential buildings is currently poorly investigated through both field surveys and building energy simulations....... The present contribution extends the knowledge about the windows control in dwellings and underlines the importance of appropriate occupant behaviour models for a better prediction of energy consumptions in buildings.......Window opening behaviour has been shown to have a significant impact on airflow rates and hence energy consumption. Nevertheless, the inhabitant behaviour related to window opening in residential buildings is currently poorly investigated through both field surveys and building energy simulations....... In particular, reliable information regarding user behaviour in residential buildings is crucial for suitable prediction of building performance (energy consumption, indoor environmental quality, etc.). To face this issue, measurements of indoor climate and outdoor environmental parameters and window “opening...

  13. Learning Windows Azure Mobile Services for Windows 8 and Windows Phone 8

    CERN Document Server

    Webber-Cross, Geoff

    2014-01-01

    This book is based around a case study game which was written for the book. This means that the chapters progress in a logical way and build upon lessons learned as we go. Real-world examples are provided for each topic that are practical and not given out-of-context so they can be applied directly to other applications.If you are a developer who wishes to build Windows 8 and Phone 8 applications and integrate them with Windows Azure Mobile Services, this book is for you. Basic C# and JavaScript skills are advantageous, as well as some knowledge of building Windows 8 or Windows Phone 8 applica

  14. Adaptive Liquid Crystal Windows

    Energy Technology Data Exchange (ETDEWEB)

    Taheri, Bahman; Bodnar, Volodymyr

    2011-12-31

    Energy consumption by private and commercial sectors in the U.S. has steadily grown over the last decade. The uncertainty in future availability of imported oil, on which the energy consumption relies strongly, resulted in a dramatic increase in the cost of energy. About 20% of this consumption are used to heat and cool houses and commercial buildings. To reduce dependence on the foreign oil and cut down emission of greenhouse gases, it is necessary to eliminate losses and reduce total energy consumption by buildings. To achieve this goal it is necessary to redefine the role of the conventional windows. At a minimum, windows should stop being a source for energy loss. Ideally, windows should become a source of energy, providing net gain to reduce energy used to heat and cool homes. It is possible to have a net energy gain from a window if its light transmission can be dynamically altered, ideally electronically without the need of operator assistance, providing optimal control of the solar gain that varies with season and climate in the U.S. In addition, the window must not require power from the building for operation. Resolution of this problem is a societal challenge and of national interest and will have a broad global impact. For this purpose, the year-round, allclimate window solution to provide an electronically variable solar heat gain coefficient (SHGC) with a wide dynamic range is needed. AlphaMicron, Inc. (AMI) developed and manufactured 1ft × 1ft prototype panels for the world’s first auto-adjusting Adaptive Liquid Crystal Windows (ALCWs) that can operate from sunlight without the need for external power source and demonstrate an electronically adjustable SHGC. This novel windows are based on AlphaMicron’s patented e-Tint® technology, a guesthost liquid crystal system implemented on flexible, optically clear plastic films. This technology is suitable both for OEM and aftermarket (retro-fitting) lamination to new and existing windows. Low level of

  15. A new window of opportunity to reject process-based biotechnology regulation.

    Science.gov (United States)

    Marchant, Gary E; Stevens, Yvonne A

    2015-01-01

    The question of whether biotechnology regulation should be based on the process or the product has long been debated, with different jurisdictions adopting different approaches. The European Union has adopted a process-based approach, Canada has adopted a product-based approach, and the United States has implemented a hybrid system. With the recent proliferation of new methods of genetic modification, such as gene editing, process-based regulatory systems, which are premised on a binary system of transgenic and conventional approaches, will become increasingly obsolete and unsustainable. To avoid unreasonable, unfair and arbitrary results, nations that have adopted process-based approaches will need to migrate to a product-based approach that considers the novelty and risks of the individual trait, rather than the process by which that trait was produced. This commentary suggests some approaches for the design of such a product-based approach. PMID:26930116

  16. Norm based Threshold Selection for Fault Detectors

    DEFF Research Database (Denmark)

    Rank, Mike Lind; Niemann, Henrik

    1998-01-01

    The design of fault detectors for fault detection and isolation (FDI) in dynamic systems is considered from a norm based point of view. An analysis of norm based threshold selection is given based on different formulations of FDI problems. Both the nominal FDI problem as well as the uncertain FDI...... problem are considered. Based on this analysis, a performance index based on norms of the involved transfer functions is given. The performance index allows us also to optimize the structure of the fault detection filter directly...

  17. GATE TYPE SELECTION BASED ON FUZZY MAPPING

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    Gate type selection is very important for mould design. Improper gate type may lead to poor product quality and low production efficiency. Although numerical simulation approach could be used to optimize gate location, the determination of gate type is still up to designers' experience. A novel method for selecting gate type based on fuzzy logic is proposed. The proposed methodology follows three steps:Design requirements for gate is extracted and generalized; Possible gate types (design schemes) are presented; The fuzzy mapping relationship between gate design requirements and gate design scheme is established based on fuzzy composition and fuzzy relation transition matrices that are assigned by domain experts.

  18. 基于Windows平台的动态取证系统%Dynamic Forensics System Based on Windows Platform

    Institute of Scientific and Technical Information of China (English)

    文少勇; 王箭; 李剑

    2012-01-01

    针对目前一些动态取证模型的不足,在分布式网络取证模型的基础上设计了一个基于Windows平台的动态取证系统,能够实现网络中的计算机作为作案目标和作案工具双重角色时的取证,具有实时获取多种数据源、取证过程隐秘、取证分析算法可扩展等特点.介绍了动态取证系统中各功能模块设计,并阐述了系统设计中涉及到的关键技术,最后通过模拟测试表明该系统能够在Windows网络下实现动态取证.%In view of the shortages of some dynamic forensics model at present, this paper designs a dynamic forensics system in distributed network forensics model based on Windows platform, which can realize obtaining evidence on the computers that plays a dual role on the network as crime goals and crime tools, and have the characteristic of real-time accessing various data sources, forensics process secretive, forensic analysis algorithm extensible etc. This paper introduces the designing of each function module in the dynamic forensics system at first Second, it lays out the key technology that appears in the design process of the system. Finally, simulation test indicates that the system can realize dynamic forensics in Windows network.

  19. A de-noising algorithm based on wavelet threshold-exponential adaptive window width-fitting for ground electrical source airborne transient electromagnetic signal

    Science.gov (United States)

    Ji, Yanju; Li, Dongsheng; Yu, Mingmei; Wang, Yuan; Wu, Qiong; Lin, Jun

    2016-05-01

    The ground electrical source airborne transient electromagnetic system (GREATEM) on an unmanned aircraft enjoys considerable prospecting depth, lateral resolution and detection efficiency, etc. In recent years it has become an important technical means of rapid resources exploration. However, GREATEM data are extremely vulnerable to stationary white noise and non-stationary electromagnetic noise (sferics noise, aircraft engine noise and other human electromagnetic noises). These noises will cause degradation of the imaging quality for data interpretation. Based on the characteristics of the GREATEM data and major noises, we propose a de-noising algorithm utilizing wavelet threshold method and exponential adaptive window width-fitting. Firstly, the white noise is filtered in the measured data using the wavelet threshold method. Then, the data are segmented using data window whose step length is even logarithmic intervals. The data polluted by electromagnetic noise are identified within each window based on the discriminating principle of energy detection, and the attenuation characteristics of the data slope are extracted. Eventually, an exponential fitting algorithm is adopted to fit the attenuation curve of each window, and the data polluted by non-stationary electromagnetic noise are replaced with their fitting results. Thus the non-stationary electromagnetic noise can be effectively removed. The proposed algorithm is verified by the synthetic and real GREATEM signals. The results show that in GREATEM signal, stationary white noise and non-stationary electromagnetic noise can be effectively filtered using the wavelet threshold-exponential adaptive window width-fitting algorithm, which enhances the imaging quality.

  20. The replacement of touch-terminal consoles of the CERN antiproton accumulator complex (AAC) by office PC's as well as X-windows based workstations

    International Nuclear Information System (INIS)

    With aging hardware and expensive maintenance and replacement possibilities, it was decided to upgrade the AAC touch terminal consoles with modern hardware. With significant amount of operational application software developed with touch terminals over 10 years, the philosophy adopted was to attempt a total emulation of these console functions of touch actions, graphics display as well as simple keyboard terminal entry onto the front-end computer controlling the AAC. The PC based emulation by mouse and multiple windows under MS-DOS and later, under the Windows 3 environment was realized relatively quickly; the next stage was therefore to do the same on the Unix platform using software based on X-windows. The communications channel was established using the TCP/IP socket library. This paper reviews this work up to the operational implementation for routine control room usage for both these solutions. (author)

  1. Non-parametric convolution based image-segmentation of ill-posed objects applying context window approach

    CERN Document Server

    Kumar, Upendra; Pal, Manoj Kumar

    2012-01-01

    Context-dependence in human cognition process is a well-established fact. Following this, we introduced the image segmentation method that can use context to classify a pixel on the basis of its membership to a particular object-class of the concerned image. In the broad methodological steps, each pixel was defined by its context window (CW) surrounding it the size of which was fixed heuristically. CW texture defined by the intensities of its pixels was convoluted with weights optimized through a non-parametric function supported by a backpropagation network. Result of convolution was used to classify them. The training data points (i.e., pixels) were carefully chosen to include all variety of contexts of types, i) points within the object, ii) points near the edge but inside the objects, iii) points at the border of the objects, iv) points near the edge but outside the objects, v) points near or at the edge of the image frame. Moreover the training data points were selected from all the images within image-d...

  2. uSIMPK. An Excel for Windows-based simulation program for instruction of basic pharmacokinetics principles to pharmacy students.

    Science.gov (United States)

    Brocks, Dion R

    2015-07-01

    Pharmacokinetics can be a challenging topic to teach due to the complex relationships inherent between physiological parameters, mathematical descriptors and equations, and their combined impact on shaping the blood fluid concentration vs. time curves of drugs. A computer program was developed within Microsoft Excel for Windows, designed to assist in the instruction of basic pharmacokinetics within an entry-to-practice pharmacy class environment. The program is composed of a series of spreadsheets (modules) linked by Visual Basic for Applications, intended to illustrate the relationships between pharmacokinetic and in some cases physiological parameters, doses and dose rates and the drug blood fluid concentration vs. time curves. Each module is accompanied by a simulation user's guide, prompting the user to change specific independent parameters and then observe the impact of the change(s) on the drug concentration vs. time curve and on other dependent parameters. "Slider" (or "scroll") bars can be selected to readily see the effects of repeated changes on the dependencies. Topics covered include one compartment single dose administration (iv bolus, oral, short infusion), intravenous infusion, repeated doses, renal and hepatic clearance, nonlinear elimination, two compartment model, plasma protein binding and the relationship between pharmacokinetics and drug effect. The program has been used in various forms in the classroom over a number of years, with positive ratings generally being received from students for its use in the classroom.

  3. Strategic Windows

    DEFF Research Database (Denmark)

    Risberg, Annette; King, David R.; Meglio, Olimpia

    We examine the importance of speed and timing in acquisitions with a framework that identifies management considerations for three interrelated acquisition phases (selection, deal closure and integration) from an acquiring firm’s perspective. Using a process perspective, we pinpoint items within ...

  4. Some Notes on the Use of theWindowed Fourier Transform for Spectral Analysis of Discretely Sampled Data

    Directory of Open Access Journals (Sweden)

    Robert W. Johnson

    2013-06-01

    Full Text Available The properties of the Gabor and Morlet transforms are examined with respect to the Fourier analysis of discretely sampled data. Forward and inverse transform pairs based on a fixed window with uniform sampling of the frequency axis can satisfy numerically the energy and reconstruction theorems; however, transform pairs based on a variable window or nonuniform frequency sampling in general do not. Instead of selecting the shape of the window as some function of the central frequency, we propose constructing a single window with unit energy from an arbitrary set of windows that is applied over the entire frequency axis. By virtue of using a fixed window with uniform frequency sampling, such a transform satisfies the energy and reconstruction theorems. The shape of the window can be tailored to meet the requirements of the investigator in terms of time/frequency resolution. The algorithm extends naturally to the case of nonuniform signal sampling without modification beyond identification of the Nyquist interval.

  5. Land Surface Temperature Retrieval from Landsat 8 TIRS—Comparison between Radiative Transfer Equation-Based Method, Split Window Algorithm and Single Channel Method

    Directory of Open Access Journals (Sweden)

    Xiaolei Yu

    2014-10-01

    Full Text Available Accurate inversion of land surface geo/biophysical variables from remote sensing data for earth observation applications is an essential and challenging topic for the global change research. Land surface temperature (LST is one of the key parameters in the physics of earth surface processes from local to global scales. The importance of LST is being increasingly recognized and there is a strong interest in developing methodologies to measure LST from the space. Landsat 8 Thermal Infrared Sensor (TIRS is the newest thermal infrared sensor for the Landsat project, providing two adjacent thermal bands, which has a great benefit for the LST inversion. In this paper, we compared three different approaches for LST inversion from TIRS, including the radiative transfer equation-based method, the split-window algorithm and the single channel method. Four selected energy balance monitoring sites from the Surface Radiation Budget Network (SURFRAD were used for validation, combining with the MODIS 8 day emissivity product. For the investigated sites and scenes, results show that the LST inverted from the radiative transfer equation-based method using band 10 has the highest accuracy with RMSE lower than 1 K, while the SW algorithm has moderate accuracy and the SC method has the lowest accuracy.

  6. QUASAR SELECTION BASED ON PHOTOMETRIC VARIABILITY

    International Nuclear Information System (INIS)

    We develop a method for separating quasars from other variable point sources using Sloan Digital Sky Survey (SDSS) Stripe 82 light-curve data for ∼ 10,000 variable objects. To statistically describe quasar variability, we use a damped random walk model parametrized by a damping timescale, τ, and an asymptotic amplitude (structure function), SF∞. With the aid of an SDSS spectroscopically confirmed quasar sample, we demonstrate that variability selection in typical extragalactic fields with low stellar density can deliver complete samples with reasonable purity (or efficiency, E). Compared to a selection method based solely on the slope of the structure function, the inclusion of the τ information boosts E from 60% to 75% while maintaining a highly complete sample (98%) even in the absence of color information. For a completeness of C = 90%, E is boosted from 80% to 85%. Conversely, C improves from 90% to 97% while maintaining E = 80% when imposing a lower limit on τ. With the aid of color selection, the purity can be further boosted to 96%, with C = 93%. Hence, selection methods based on variability will play an important role in the selection of quasars with data provided by upcoming large sky surveys, such as Pan-STARRS and the Large Synoptic Survey Telescope (LSST). For a typical (simulated) LSST cadence over 10 years and a photometric accuracy of 0.03 mag (achieved at i ∼ 22), C is expected to be 88% for a simple sample selection criterion of >100 days. In summary, given an adequate survey cadence, photometric variability provides an even better method than color selection for separating quasars from stars.

  7. Content-Based Language Instruction: A New Window of Opportunity in Geography Education

    Science.gov (United States)

    Hardwick, Susan W.; Davis, Robert L.

    2009-01-01

    The use of content-based language instruction (CBI) offers an innovative and effective method for teaching core geographic concepts and skills while students study a second language. This article focuses on a collaborative initiative developed and tested by university and high school level geography and second-language educators. The goal of the…

  8. Improving quantitative dosimetry in (177)Lu-DOTATATE SPECT by energy window-based scatter corrections

    DEFF Research Database (Denmark)

    de Nijs, Robin; Lagerburg, Vera; Klausen, Thomas L;

    2014-01-01

    PURPOSE: Patient-specific dosimetry of lutetium-177 ((177)Lu)-DOTATATE treatment in neuroendocrine tumours is important, because uptake differs across patients. Single photon emission computer tomography (SPECT)-based dosimetry requires a conversion factor between the obtained counts and the acti...

  9. Sensitivity distribution of a vibration sensor based on Mach-Zehnder interferometer designed inside the window system

    Science.gov (United States)

    Zboril, Ondrej; Nedoma, Jan; Cubik, Jakub; Novak, Martin; Bednarek, Lukas; Fajkus, Marcel; Vasinek, Vladimir

    2016-04-01

    Interferometric sensors are very accurate and sensitive sensors that due to the extreme sensitivity allow sensing vibration and acoustic signals. This paper describes a new method of implementation of Mach-Zehnder interferometer for sensing of vibrations caused by touching on the window panes. Window panes are part of plastic windows, in which the reference arm of the interferometer is mounted and isolated inside the frame, a measuring arm of the interferometer is fixed to the window pane and it is mounted under the cover of the window frame. It prevents visibility of the optical fiber and this arrangement is the basis for the safety system. For the construction of the vibration sensor standard elements of communication networks are used - optical fiber according to G.652D and 1x2 splitters with dividing ratio 1:1. Interferometer operated at a wavelength of 1550 nm. The paper analyses the sensitivity of the window in a 12x12 measuring points matrix, there is specified sensitivity distribution of the window pane.

  10. A Timeout Based Congestion Control Scheme for Window Flow- Controlled Networks

    OpenAIRE

    Jain, R.

    1998-01-01

    During overload, most networks drop packets due to buffer unavailability. The resulting timeouts at the source provide an implicit mechanism to convey congestion signals from the network to the source. On a timeout, a source should not only retransmit the lost packet, but it should also reduce its load on the network. Based on this realization, we have developed a simple congestion control scheme using the acknowledgment timeouts as indications of packet loss and congestion. This scheme does ...

  11. W3-Scrape - A Windows based Reconnaissance Tool for Web Application Fingerprinting

    OpenAIRE

    R, Karthik; Karthik, Raghavendra; S, Pramod; Kamath, Sowmya

    2013-01-01

    Web Application finger printing is a quintessential part of the Information Gathering phase of (ethical) hacking. It allows narrowing down the specifics instead of looking for all clues. Also an application that has been correctly recognized can help in quickly analyzing known weaknesses and then moving ahead with remaining aspects. This step is also essential to allow a pen tester to customize its payload or exploitation techniques based on the identification so to increase the chances of su...

  12. Estimation Daylight to Find Simple Formulate Based on the Ratio of Window Area to Floor Area Rule of Thumb for Classroom in Malaysia

    Directory of Open Access Journals (Sweden)

    Seyedehzahra Mirrahimi

    2013-06-01

    Full Text Available The impact of ratio of window area to floor area rule of thumb on the performance of day lighting was investigated using computer simulation by Radiance in IES . The purpose of this research is to find simple formulate based on window area to floor area ratio for small classroom located in Malaysia and asses the influence of variables design on their day lighting and energy consumption. The simulation was carried out for various window areas to floor area percentage in two models of classrooms. Majority of architects prefer to use the quick reference resources instead of simulation tool to evaluate the amount of day lighting. Comparative simulation were done to determine which ratio of glazing area to floor area have optimum result on visual comfort and energy consumption. In addition, correlation between results of average illuminance on size of the window to find a new rule of thumb formulate in Malyasia. This simple formulate can help architect to calculate the optimum size of window to develop day lighting in small classrooms.

  13. A Window on Econometrics.

    OpenAIRE

    David F. Hendry; Jurgen A. Doornik

    1995-01-01

    This paper illustrates how econometricians practice their subject using primarily graphical tools. It is based on software which exploits the Windows operating system to show data, results, reports, and graphics simultaneously on screen and seeks to capture the interactions which were used in the associated lecture to highlight the learning process involved in econometric modelling. The substantive application is a model of the UK inflation process over the past century, which finds an import...

  14. Diamond Based DDR IMPATTs: Prospects and Potentiality as Millimeter-Wave Source at 94 GHz Atmospheric Window

    Directory of Open Access Journals (Sweden)

    A. Acharyya

    2013-06-01

    Full Text Available Large-signal simulation is carried out in this paper to investigate the prospects and potentiality of Double-Drift Region (DDR Impact Avalanche Transit Time (IMPATT device based on semiconducting type-IIb diamond as millimeter-wave source operating at 94 GHz atmospheric window frequency. Large-signal simulation method developed by the authors and presented in this paper is based on non-sinusoidal voltage excitation. The simulation is carried out to obtain the large-signal characteristics such as RF power output, DC to RF conversion efficiency etc. of DDR diamond IMPATT device designed to operate at 94 GHz. The results show that the device is capable of delivering a peak RF power output of 7.01 W with 10.18% DC to RF conversion efficiency for a bias current density of 6.0×10^8 A m^-2 and voltage modulation of 60% at 94 GHz; whereas for the same voltage modulation 94 GHz DDR Si IMPATT can deliver only 693.82 mW RF power with 8.74 efficiency for the bias current density of 3.4×10^8 A m^-2.

  15. Time-windows-based filtering method for near-surface detection of leakage from geologic carbon sequestration sites

    Energy Technology Data Exchange (ETDEWEB)

    Pan, L.; Lewicki, J.L.; Oldenburg, C.M.; Fischer, M.L.

    2010-02-28

    We use process-based modeling techniques to characterize the temporal features of natural biologically controlled surface CO{sub 2} fluxes and the relationships between the assimilation and respiration fluxes. Based on these analyses, we develop a signal-enhancing technique that combines a novel time-window splitting scheme, a simple median filtering, and an appropriate scaling method to detect potential signals of leakage of CO{sub 2} from geologic carbon sequestration sites from within datasets of net near-surface CO{sub 2} flux measurements. The technique can be directly applied to measured data and does not require subjective gap filling or data-smoothing preprocessing. Preliminary application of the new method to flux measurements from a CO{sub 2} shallow-release experiment appears promising for detecting a leakage signal relative to background variability. The leakage index of ?2 was found to span the range of biological variability for various ecosystems as determined by observing CO{sub 2} flux data at various control sites for a number of years.

  16. High power red-light GaInP/AlGaInP laser diodes with nonabsorbing windows based on Zn diffusion-induced quantum well intermixing

    Institute of Scientific and Technical Information of China (English)

    Kai Zheng; Tao Lin; Li Jiang; Jun Wang; Suping Liu; Xin Wei; Guangze Zhang; Xiaoyu Ma

    2006-01-01

    The layer structure of GaInP/AlGaInP quantum well laser diodes (LDs) was grown on GaAs substrate using low-pressure metalorganic chemical vapor deposition (LP-MOCVD) technique. In order to improve the catastrophic optical damage (COD) level of devices, a nonabsorbing window (NAW), which was based on Zn diffusion-induced quantum well intermixing, was fabricated near the both ends of the cavities. Zndiffusions were respectively carried out at 480, 500, 520, 540, and 580 ℃ for 20 minutes. The largest energy blue shift of 189.1 meV was observed in the window regions at 580 ℃. When the blue shift was 24.7 meV at 480 ℃, the COD power for the window LD was 86.7% higher than the conventional LD.

  17. A warping window approach to real-time vision-based pedestrian detection in a truck’s blind spot zone

    OpenAIRE

    Van Beeck, Kristof; Goedemé, Toon; Tuytelaars, Tinne

    2012-01-01

    Van Beeck K., Goedemé T., Tuytelaars T., ''A warping window approach to real-time vision-based pedestrian detection in a truck’s blind spot zone'', Proceedings 9th international conference on informatics in control, automation and robotics - ICINCO 2012, vol. 2, pp. 561-568, July 28-31, 2012, Rome, Italy.

  18. Real-time vision-based pedestrian detection in a truck’s blind spot zone using a warping window approach

    OpenAIRE

    Van Beeck, Kristof; Goedemé, Toon; Tuytelaars, Tinne

    2014-01-01

    Van Beeck K., Goedemé G., Tuytelaars T., ''Real-time vision-based pedestrian detection in a truck’s blind spot zone using a warping window approach'', Informatics in control, automation and robotics - lecture notes in electrical engineering, vol. 283, pp. 251-264, Ferrier J.-L., Bernard A., Gusikhin O. and Madani K., eds., 2014.

  19. Investigation of Retrofit Solutions of Window-Wall Assembly Based on FMEA, Energy Performance and Indoor Environment

    DEFF Research Database (Denmark)

    Morelli, Martin; Lauritsen, Diana; Svendsen, Svend

    2011-01-01

    Multi-storey buildings built before the 1960s have a large energy saving potential. The windows and facades are the two components with largest saving potentials. Many buildings from the period before the 1960s have windows and facades worth preserving from an architectural point of view...... environment. The failure mode and effect analysis is used for assessing the durability. The energy saving is calculated as the heat loss through the structure. Daylight simulations are performed to evaluate the indoor environment. In the paper a window with a secondary glazing and a box window, both....... The maintenance costs can be found from the durability assessment as the indoor environment and energy calculations cover the operational costs. These investigations are needed to analysis the retrofit solution....

  20. Robot path planning in globally unknown environments based on rolling windows

    Institute of Scientific and Technical Information of China (English)

    ZHANG; Chungang; (

    2001-01-01

    [1]Schwartz, J. T., Sharir, M., On the “Piano Movers” problem: I. The case of a two-dimensional rigid polygonal body moving amidst polygonal barriers, Comm. Pure Appl. Math., 1983, 36: 345-398.[2]Lozano-Perez, T., Spatial planning: a configuration space approach, IEEE Trans. on Computers, 1983, 32(2): 108-120.[3]Crowley, J. L., Navigation for an intelligent mobile robot, IEEE Trans. on Robotics and Automation, 1985, 1(1): 31-41.[4]Brooks, R. A., Solving the find-path problem by good representation of free space, IEEE Trans. on Systems, Man and Cybernetics, 1983, 13(3): 190-197.[5]Takahashi, O., Schilling, R. J., Motion planning in a plane using generalized Voronoi diagrams, IEEE Trans. on Robotics and Automation, 1989, 5(2): 142-150.[6]Sankaranarayanan, A., Vidyasagar, M., A new path planning algorithm for moving a point object amidst unknown obstacles in a plane, in Proc. IEEE Conf. on Robotics and Automation, Nice, France, 1990, 1930-1936.[7]Borenstein, J., Koren, Y., Real time obstacle avoidance for fast mobile robots, IEEE Trans. on Systems, Man and Cybernetics, 1989, 19 (5): 1179-1187.[8]Tilove, R. B., Local obstacle avoidance for mobile robots based on the method of artificial potentials, in Proc. IEEE Conf. on Robotics and Automation, Nice, France, 1990, 566-571.[9]Lumelsky, V. J., Algorithm and complexity issues of robot motion in an uncertain environment, Journal of Complexity, 1987, 3: 146-182.[10]Iyengar, S. S., Jorgensen, C. C., Rao, S. V. N. et al., Learned navigation paths for a robot in unexplored terrain, in Proc. 2nd Conf. on Artificial Intelligence Applications and Engineering of Knowledge Based Systems, Miami Beach, Florida, 1985, 11-13.[11]Xi Yugeng, Predictive Control (in Chinese), Beijing: National Defense Industry Press, 1993.[12]Xi Yugeng, Predictive control of generalized control problem in dynamic uncertain environment, Control Theory and Applications (in Chinese), 2000, (1): 5.

  1. Development and Investigation of Evacuated Windows Based on Monolithic Silica Xerogel Spacers

    DEFF Research Database (Denmark)

    Schultz, Jørgen Munthe; Svendsen, Sv Aa Højgaard

    on Monolithic Silica Aerogel Spacers" contract JOU2-CT92-0192. Low density monolithic silica xerogel and monolithic silica aerogel are almost identical, but while the aerogel requires a supercritical drying process, xerogels is dried at atmospheric pressure. Ambient pressure drying is possible due to a chemical...... strengthening of the material prior to drying. This process results in an increased density of xerogels compared to aerogels which leads to a slightly higher thermal conductivity with typical values of 0.030 W/(m K) measured in air at atmospheric pressure. If evacuated below 50-100 hPa the thermal conductivity...... at the cold side and intolerable long term creep.A small scale laboratory assembled glazing (0.15 × 0.15 m2, density = 490 kg/m3, thickness = 10 mm) has been made. The development of a rim seal based on a laminated plastic foil has been carried out in close co-operation with the aerogel project due...

  2. 基于Silverlight for Windows Phone的图书馆推送通知的设计%Push Notifications Based on Silverlight for Windows Phone Design

    Institute of Scientific and Technical Information of China (English)

    王建荣

    2012-01-01

    Using push technology based on user needs, to provide information on active service purposely, customized and personally for the user. With the advancement of the third-generation and fourth-generation mobile communication technology, as well as the popularity of smart phones, information of the push notification service has become an important feature of smart phones.%利用推送技术根据用户需要,有目的、定制以及个性化地为用户提供信息主动服务。第三代、第四代移动通信技术的进步,以及智能手机的普及,使得信息的推送通知服务已经成为智能手机的重要功能。

  3. Research on Cloud Computing Security Based on Windows Azure%基于Azure的云安全研究

    Institute of Scientific and Technical Information of China (English)

    朱圣才

    2013-01-01

    随着云计算的进一步推进和发展,云计算面临的安全问题变得越来越突出,特别是在云计算带来的诸多利益下,如何满足用户在云计算环境下对用户数据的机密性、完整性等相关性能的需求,已成为云计算安全的首要难题。文中以微软Azure平台为基础,从云安全分析入手,针对Windows Azure云安全进行分析研究。在Azure架构下,探讨Azure云安全解决方案,分别从IaaS、PaaS、SaaS三个角度对微软Azure云平台安全方案给出应对措施,为进一步对微软Azure云平台进行更深层次的测评分析提供技术支持。%With further promotion and development of cloud computing,the security problems faced by cloud computing are becoming more and more prominent,in particular,under the benefits of cloud computing,how to satisfy user requirement about the confidentiality and integrality of user data,and correlative capability in the cloud computing environment has become the primary security problem of cloud computing. Based on the Microsoft Azure platform,starting from the cloud security,research the security of the Windows Azure cloud. In the Azure architecture,to explore Azure cloud security solutions,respectively from three angles of IaaS,PaaS,SaaS on Microsoft Azure cloud platform security solution give the response measures,providing technical support for Microsoft's Azure cloud platform for a deeper evaluation analysis.

  4. swDMR: A Sliding Window Approach to Identify Differentially Methylated Regions Based on Whole Genome Bisulfite Sequencing.

    Directory of Open Access Journals (Sweden)

    Zhen Wang

    Full Text Available DNA methylation is a widespread epigenetic modification that plays an essential role in gene expression through transcriptional regulation and chromatin remodeling. The emergence of whole genome bisulfite sequencing (WGBS represents an important milestone in the detection of DNA methylation. Characterization of differential methylated regions (DMRs is fundamental as well for further functional analysis. In this study, we present swDMR (http://sourceforge.net/projects/swDMR/ for the comprehensive analysis of DMRs from whole genome methylation profiles by a sliding window approach. It is an integrated tool designed for WGBS data, which not only implements accessible statistical methods to perform hypothesis test adapted to two or more samples without replicates, but false discovery rate was also controlled by multiple test correction. Downstream analysis tools were also provided, including cluster, annotation and visualization modules. In summary, based on WGBS data, swDMR can produce abundant information of differential methylated regions. As a convenient and flexible tool, we believe swDMR will bring us closer to unveil the potential functional regions involved in epigenetic regulation.

  5. Data in support of energy performance of double-glazed windows

    Directory of Open Access Journals (Sweden)

    Mahmoud Shakouri

    2016-06-01

    Full Text Available This paper provides the data used in a research project to propose a new simplified windows rating system based on saved annual energy (“Developing an empirical predictive energy-rating model for windows by using Artificial Neural Network” (Shakouri Hassanabadi and Banihashemi Namini, 2012 [1], “Climatic, parametric and non-parametric analysis of energy performance of double-glazed windows in different climates” (Banihashemi et al., 2015 [2]. A full factorial simulation study was conducted to evaluate the performance of 26 different types of windows in a four-story residential building. In order to generalize the results, the selected windows were tested in four climates of cold, tropical, temperate, and hot and arid; and four different main orientations of North, West, South and East. The accompanied datasets include the annual saved cooling and heating energy in different climates and orientations by using the selected windows. Moreover, a complete dataset is provided that includes the specifications of 26 windows, climate data, month, and orientation of the window. This dataset can be used to make predictive models for energy efficiency assessment of double glazed windows.

  6. 基于ARM-WindowsCE的便携式漏磁检测仪设计%Design of Portable Magnetic Flux Leakage Testing Instrument Based on ARM-WindowsCE

    Institute of Scientific and Technical Information of China (English)

    于卫刚; 苑希超; 徐超; 王长龙; 王鹏

    2011-01-01

    In order to analyze the relationship between the magnetic flux leakage signals and the types of defect, a portable magnetic flux leakage testing instrument was designed. This paper presents the structure of this magnetic flux leakage testing instrument based on ARM9 embedded configuration. With the S3C2440A processor as the core and WindowCE5. 0 as the operating system and by using HONEYWELL company's magnetism sensor HMC1021 to obtain magnetic flux leakage signals on the surface of ferromagnetic material,the instrument can fulfill the basic function of the magnetic flux leakage testing instrument in a better way.%为了分析漏磁信号和缺陷类型之间存在的对应关系,研制了一种适合现场检测的便携式漏磁检测仪.给出基于ARM9嵌入式结构的漏磁检测仪总体结构,该检测仪以S3C2440A处理器为核心,采用WindowsCE5.0为操作系统,以HONEYWELL公司的HMC1021磁阻传感器来获取铁磁材料表面的漏磁信号,较好地实现了漏磁检测仪的基本功能.

  7. Research on the Development of the System Software of CNC grinder machines Based on Windows CE%基于Windows CE的数控磨床系统软件的开发与研究

    Institute of Scientific and Technical Information of China (English)

    刘露; 樊泽明

    2011-01-01

    文章首先对基于ARM的数控磨床系统进行了专门的研究.并以Windows CE作为软件开发平台,运用Embedded Visual C++开发工具设计出系统的人机界面以及整个软件平台.主要论述了WinCE操作系统的定制,文件系统以及编译模块的设计.并且,给出了数控磨床系统的人机界面与软件系统的设计及开发方案.最后.完成整个软件系统的开发.%Researched the system of CNC grinder machines based on ARM,this paper made Windows CE as software platform to develop the human-computer interface and the software platform of the system by making use of Embedded Visual C ++ as develop tool。 Furthermore,it mainly discussed the configuration of WinCE operation system and the design of file system and compiled modules specially. In addition, it provided the design and development program of human-computer interface and the software system of the CNC grinder system and the accomplishment of the development of the software system finally.

  8. Transparent solar cell window module

    Energy Technology Data Exchange (ETDEWEB)

    Chau, Joseph Lik Hang; Chen, Ruei-Tang; Hwang, Gan-Lin; Tsai, Ping-Yuan [Nanopowder and Thin Film Technology Center, ITRI South, Industrial Technology Research Institute, Tainan County 709 (China); Lin, Chien-Chu [I-Lai Acrylic Corporation, Tainan City (China)

    2010-03-15

    A transparent solar cell window module based on the integration of traditional silicon solar cells and organic-inorganic nanocomposite material was designed and fabricated. The transparent solar cell window module was composed of a nanocomposite light-guide plate and traditional silicon solar cells. The preparation of the nanocomposite light-guide plate is easy without modification of the traditional casting process, the nanoparticles sol can be added directly to the polymethyl methacrylate (PMMA) monomer syrup during the process. The solar energy collected by this window can be used to power up small household electrical appliances. (author)

  9. A buffer-layer/a-SiOx:H(p) window-layer optimization for thin film amorphous silicon based solar cells

    International Nuclear Information System (INIS)

    Amorphous silicon based (a-Si:H-based) solar cells with a buffer-layer/boron doped hydrogenated amorphous silicon oxide (a-SiOx:H(p)) window-layer were fabricated and investigated. In the first part, in order to reduce the Schottky barrier height at the fluorine doped tin oxide (FTO)/a-SiOx:H(p) window-layer heterointerface, we have used buffer-layer/a-SiOx:H(p) for the window-layer, in which boron doped hydrogenated amorphous silicon (a-Si:H(p)) or boron doped microcrystalline silicon (μc-Si:H(p)) is introduced as a buffer layer between the a-SiOx:H(p) and FTO of the a-Si:H-based solar cells. The a-Si:H-based solar cell using a μc-Si:H(p) buffer-layer shows the highest efficiency compared to the optimized bufferless, and a-Si:H(p) buffer-layer in the a-Si:H-based solar cells. This highest performance was attributed not only to the lower absorption of the μc-Si:H(p) buffer-layer but also to the lower Schottky barrier height at the FTO/window-layer interface. Then, we present the dependence of the built-in potential (Vbi) and blue response of the devices on the inversion of activation energy (ξ) of the a-SiOx:H(p), in the μc-Si:H(p)/a-SiOx:H(p) window-layer. The enhancement of both Vbi and blue response is observed, by increasing the value of ξ. The improvement of Vbi and blue response can be ascribed to the enlargement of the optical gap of a-SiOx:H(p) films in the μc-Si:H(p)/a-SiOx:H(p) window-layer. Finally, the conversion efficiency was increased by 22.0%, by employing μc-Si:H(p) as a buffer-layer and raising the ξ of the a-SiOx:H(p), compared to the optimized bufferless case, with a 10 nm-thick a-SiOx:H(p) window-layer. - Highlights: • Low Schottky barrier height benefits fill factor, and open-circuit voltage (Voc). • High band gap is beneficial for short-circuit current density (Jsc). • Boron doped microcrystalline silicon is a suitable buffer-layer for cell performance. • The Voc and Jsc increase with an increasing inversion of activation

  10. Visual DMDX: A web-based authoring tool for DMDX, a Windows display program with millisecond accuracy.

    Science.gov (United States)

    Garaizar, Pablo; Reips, Ulf-Dietrich

    2015-09-01

    DMDX is a software package for the experimental control and timing of stimulus display for Microsoft Windows systems. DMDX is reliable, flexible, millisecond accurate, and can be downloaded free of charge; therefore it has become very popular among experimental researchers. However, setting up a DMDX-based experiment is burdensome because of its command-based interface. Further, DMDX relies on RTF files in which parts of the stimuli, design, and procedure of an experiment are defined in a complicated (DMASTR-compatible) syntax. Other experiment software, such as E-Prime, Psychopy, and WEXTOR, became successful as a result of integrated visual authoring tools. Such an intuitive interface was lacking for DMDX. We therefore created and present here Visual DMDX (http://visualdmdx.com/), a HTML5-based web interface to set up experiments and export them to DMDX item files format in RTF. Visual DMDX offers most of the features available from the rich DMDX/DMASTR syntax, and it is a useful tool to support researchers who are new to DMDX. Both old and modern versions of DMDX syntax are supported. Further, with Visual DMDX, we go beyond DMDX by having added export to JSON (a versatile web format), easy backup, and a preview option for experiments. In two examples, one experiment each on lexical decision making and affective priming, we explain in a step-by-step fashion how to create experiments using Visual DMDX. We release Visual DMDX under an open-source license to foster collaboration in its continuous improvement. PMID:24912762

  11. Information Protection Based on Windows NT Filter Drivers Keyboard%基于Windows NT过滤驱动键盘录入信息保护

    Institute of Scientific and Technical Information of China (English)

    叶磊; 葛万成

    2012-01-01

    随着电子商务的发展和网上银行系统的应用日益广泛,并且伴随RootKit技术的日益成熟,针对这些应用系统的信息窃取行为也日益增多,恶意软件的检测变得更加困难.本文在网上银行系统键盘保护模块设计方案的基础上,提出针对目前流行的RootKit检测方法的一种比较完善的键盘录入信息保护策略.该保护方案以一种安全可靠的键盘录入信息方式很好地保护用户输入信息,以达到更好的信息安全保护效果.%With the development of E-commerce, the wide application of E-bank and the growing sophistication of RoolKit technology, information stealing from these application systems keeps increasing. It becomes much harder to detect malicious software. Based on the theories of E-bank keyboard protection module, a comparatively sound keyboard data entry protection strategy, targeting the detection of currently-popular RookKit, is proposed. By adopting a more safe and reliable keyboard data entry method, this strategy achieves a better result of protecting users' data entry.

  12. Clustering-based selective neural network ensemble

    Institute of Scientific and Technical Information of China (English)

    FU Qiang; HU Shang-xu; ZHAO Sheng-ying

    2005-01-01

    An effective ensemble should consist of a set of networks that are both accurate and diverse. We propose a novel clustering-based selective algorithm for constructing neural network ensemble, where clustering technology is used to classify trained networks according to similarity and optimally select the most accurate individual network from each cluster to make up the ensemble. Empirical studies on regression of four typical datasets showed that this approach yields significantly smaller en semble achieving better performance than other traditional ones such as Bagging and Boosting. The bias variance decomposition of the predictive error shows that the success of the proposed approach may lie in its properly tuning the bias/variance trade-offto reduce the prediction error (the sum of bias2 and variance).

  13. Research of Vehicle Routing Problem Based on Fuzzy Time Windows%基于模糊时间窗的车辆调度问题研究

    Institute of Scientific and Technical Information of China (English)

    王旭坪; 张凯; 胡祥培

    2011-01-01

    An increasing number of enterprises are focusing on the vehicle routing problems (VRP) because of expanded logistics support. VRP belongs to typical NP-Hard problems. An enterprise typically spends 25% to 30% of total expenses on vehicle routing problems because they can affect economic efficiency and customer benefits. Therefore, it is important to research VRP and optimize logistics activities.Exiting literature has focused on the vehicle routing problem with hard time and soft time windows. In the VRP with hard time window, the service time must fall within each customer' s time window. Due to the limitation of hard time window and the number of available vehicles, it is often unable to find feasible schedules. To deal with issues pertaining to the violation of time window, researchers have proposed the concept of "soft time window". In the VRP with soft time window, a penalty cost is added once a time window is violated, and the penalty cost is often assumed to be linear with the degree of violation. In some cases, violation of time window does not directly incur any penalty cost, although the satisfaction levels of customers may drop and lead to benefit loss in the long term. In many realistic applications, the hard time window or soft time window does represent customer requirements very well. Under these circumstances, the fuzzy processing of time window can reflect customers' requirements well and truly. Until now, few studies have addressed VRP-with fuzzy time window when the number of vehicle is limited. There are many real-life situations where the number of vehicle is limited, such as logistics distribution, post express and so on. Thus, this paper proposes and solves vehicle routing problems based on the fuzzy time window and a definite number of vehicles. In this paper, a fuzzy membership function is used to characterize customers' satisfaction levels by analyzing customers' practical requirements of the service time window.A multi-objective model

  14. Comparing Multiple Reaction Monitoring and Sequential Window Acquisition of All Theoretical Mass Spectra for the Relative Quantification of Barley Gluten in Selectively Bred Barley Lines.

    Science.gov (United States)

    Colgrave, Michelle L; Byrne, Keren; Blundell, Malcolm; Heidelberger, Sibylle; Lane, Catherine S; Tanner, Gregory J; Howitt, Crispin A

    2016-09-20

    Celiac disease (CD) is a disease of the small intestine that occurs in genetically susceptible subjects triggered by the ingestion of cereal gluten proteins for which the only treatment is strict adherence to a life-long gluten-free diet. Barley contains four gluten protein families, and the existence of barley genotypes that do not accumulate the B-, C-, and D-hordeins paved the way for the development of an ultralow gluten phenotype. Using conventional breeding strategies, three null mutations behaving as recessive alleles were combined to create a hordein triple-null barley variety. Proteomics has become an invaluable tool for characterization and quantification of the protein complement of cereal grains. In this study multiple reaction monitoring (MRM) mass spectrometry, viewed as the gold standard for peptide quantification, was compared to the data-independent acquisition strategy known as SWATH-MS (sequential window acquisition of all theoretical mass spectra). SWATH-MS was comparable (p gluten) in eight barley lines. The results of SWATH-MS analysis further confirmed the absence of the B-, C-, and D-hordeins in the triple-null barley line and showed significantly reduced levels ranging from <1% to 16% relative to wild-type (WT) cv Sloop for the minor γ-hordein class. SWATH-MS represents a valuable tool for quantitative proteomics based on its ability to generate reproducible data comparable with MRM-MS, but has the added benefits of allowing reinterrogation of data to improve analytical performance, ask new questions, and in this case perform quantification of trypsin-resistant proteins (C-hordeins) through analysis of their semi- or nontryptic fragments. PMID:27533879

  15. A Genetic Algorithm-Based Feature Selection

    Directory of Open Access Journals (Sweden)

    Babatunde Oluleye

    2014-07-01

    Full Text Available This article details the exploration and application of Genetic Algorithm (GA for feature selection. Particularly a binary GA was used for dimensionality reduction to enhance the performance of the concerned classifiers. In this work, hundred (100 features were extracted from set of images found in the Flavia dataset (a publicly available dataset. The extracted features are Zernike Moments (ZM, Fourier Descriptors (FD, Lengendre Moments (LM, Hu 7 Moments (Hu7M, Texture Properties (TP and Geometrical Properties (GP. The main contributions of this article are (1 detailed documentation of the GA Toolbox in MATLAB and (2 the development of a GA-based feature selector using a novel fitness function (kNN-based classification error which enabled the GA to obtain a combinatorial set of feature giving rise to optimal accuracy. The results obtained were compared with various feature selectors from WEKA software and obtained better results in many ways than WEKA feature selectors in terms of classification accuracy

  16. Optical Properties of Window Coatings

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Window coating used for the building in recent years is described. Important design principles, practical coating materials, and attainable optical properties for research-type coatings are introduced. Discussion is carried out on the spectrally selective coatings, the electrochromic coatings, and the thermochromic coatings.

  17. Direct quantification of lycopene in products derived from thermally processed tomatoes: optothermal window as selective, sensitive and accurate method without the need for preparatory steps

    NARCIS (Netherlands)

    Bicanic, D.D.; Swarts, J.W.; Luterotti, S.; Pietrapierza, G.; Doka, O.; Rooij, de H.

    2004-01-01

    The concept of the optothermal window (OW) is proposed as a reliable analytical tool to rapidly determine the concentration of lycopene in a large variety of commercial tomato products in an extremely simple way (the determination is achieved without the need for pretreatment of the sample). The OW

  18. Windows 10 for dummies

    CERN Document Server

    Rathbone, Andy

    2015-01-01

    The fast and easy way to get up and running with Windows 10 Windows 10 For Dummies covers the latest version of Windows and gets you up and running with the changes and new features you'll find in this updated operating system. Packed with time-saving tips to help you get the most out of the software, this helpful Windows 10 guide shows you how to manage Windows tasks like navigating the interface with a mouse or touchscreen, connecting to the web, and troubleshooting problems and making quick fixes. Assuming no prior knowledge of the software, Windows 10 For Dummies addresses the updates to

  19. Windows 10 simplified

    CERN Document Server

    McFedries, Paul

    2015-01-01

    Learn Windows 10 quickly and painlessly with this beginner's guide Windows 10 Simplified is your absolute beginner's guide to the ins and outs of Windows. Fully updated to cover Windows 10, this highly visual guide covers all the new features in addition to the basics, giving you a one-stop resource for complete Windows 10 mastery. Every page features step-by-step screen shots and plain-English instructions that walk you through everything you need to know, no matter how new you are to Windows. You'll master the basics as you learn how to navigate the user interface, work with files, create

  20. ASSESSMENT OF RADIONUCLIDES DATABASES IN CAP88 MAINFRAME VERSION 1.0 AND WINDOWS-BASED VERSION 3.0

    Energy Technology Data Exchange (ETDEWEB)

    Farfan, E.; Lee, P.; Jannik, T.; Donnelly, E.

    2008-09-16

    In this study the radionuclide databases for two versions of the Clean Air Act Assessment Package-1988 (CAP88) computer model were assessed in detail. CAP88 estimates radiation dose and the risk of health effects to human populations from radionuclide emissions to air. This program is used by several Department of Energy (DOE) facilities to comply with National Emission Standards for Hazardous Air Pollutants (NESHAP) regulations. CAP88 Mainframe, referred to as Version 1.0 on the Environmental Protection Agency (EPA) website (http://www.epa.gov/radiation/assessment/CAP88/), was the very first CAP88 version released in 1988. Some DOE facilities including the Savannah River Site still employ this version (1.0) while others use the more user-friendly personal computer Windows-based Version 3.0 released in December 2007. Version 1.0 uses the program RADRISK based on International Commission on Radiological Protection (ICRP) Publication 30 as its radionuclide database. Version 3.0 uses half-life, dose and risk factor values based on Federal Guidance Report 13. Differences in these values could cause different results for the same input exposure data (same scenario), depending on which version of CAP88 is used. Consequently, the differences between the two versions are being assessed in detail at Savannah River National Laboratory. The version 1.0 and 3.0 database files contain 496 and 838 radionuclides, respectively, and though one would expect the newer version to include all the 496 radionuclides, thirty-five radionuclides are listed in version 1.0 that are not included in version 3.0. The majority of these has either extremely short or long half-lives or is no longer in production; however, some of the short-lived radionuclides might produce progeny of great interest at DOE sites. In addition, one hundred and twenty-two radionuclides were found to have different half-lives in the two versions, with 21 over 3 percent different and 12 over 10 percent different.

  1. Comparison between lighting performance of a virtual natural lighting solutions prototype and a real window based on computer simulation

    Directory of Open Access Journals (Sweden)

    R.A. Mangkuto

    2014-12-01

    Full Text Available This article discusses the measurement and simulation of a first generation prototype of Virtual Natural Lighting Solutions (VNLS, which are systems that can artificially provide natural lighting as well as a realistic outside view, with properties comparable to those of real windows and skylights. Examples of employing Radiance as a simulation tool to predict the lighting performance of such solutions are shown, for a particular case study of a VNLS prototype displaying variations of a simplified view of overcast, clear, and partly cloudy skies. Measurement and simulation were conducted to evaluate the illuminance distribution on workplane level. The key point of this study is to show that simulations can be used to compare an actual VNLS prototype with a hypothetical real window under the same sky scenes, which was physically not possible, since the test room was not located at the building׳s façade. It is found that the investigated prototype yields a less rapidly drop illuminance distribution and a larger average illuminance than the corresponding real window, under the overcast (52 lx compared to 28 lx and partly cloudy (102 lx compared to 80 lx sky scenes. Under the clear sky scene, the real window yields a larger average illuminance (97 lx compared to the prototype (71 lx, due to the influence of direct sunlight.

  2. Application of Windows Socket Technique to Communication Process of the Train Diagram Network System Based on Client/Server Structure

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper is focused on the technique for design and realization of the process communications about the computer-aided train diagram network system. The Windows Socket technique is adopted to program for the client and the server to create system applications and solve the problems of data transfer and data sharing in the system.

  3. Redesigned-Scale-Free CORDIC Algorithm Based FPGA Implementation of Window Functions to Minimize Area and Latency

    Directory of Open Access Journals (Sweden)

    Supriya Aggarwal

    2012-01-01

    Full Text Available One of the most important steps in spectral analysis is filtering, where window functions are generally used to design filters. In this paper, we modify the existing architecture for realizing the window functions using CORDIC processor. Firstly, we modify the conventional CORDIC algorithm to reduce its latency and area. The proposed CORDIC algorithm is completely scale-free for the range of convergence that spans the entire coordinate space. Secondly, we realize the window functions using a single CORDIC processor as against two serially connected CORDIC processors in existing technique, thus optimizing it for area and latency. The linear CORDIC processor is replaced by a shift-add network which drastically reduces the number of pipelining stages required in the existing design. The proposed design on an average requires approximately 64% less pipeline stages and saves up to 44.2% area. Currently, the processor is designed to implement Blackman windowing architecture, which with slight modifications can be extended to other widow functions as well. The details of the proposed architecture are discussed in the paper.

  4. Realization of virtual digital oscilloscope based on C++6.0 and LabWindows/CVI%基于VC++6.0和LabWindows/CVI的虚拟数字示波器的实现

    Institute of Scientific and Technical Information of China (English)

    杭君; 王勇

    2009-01-01

    Automated test system developed by Standard bus and software technique is powerful,unified and good for system's integrated design.Based on PXI bus technology,a method is put forward in order to control NI's PXI-5152 Oscilloscope module in VC + +6.0 environment calls a dynamic link library which LabWindows/ CVI generated.By using this method we complete designing a virtual digital oscilloscope which is confirmed with high measuring accuracy,fully functional through test,meet the design requirements.We also can develop other virtual instruments such as multimeter,spectrum analyzer,these instruments have been applied in a integrated test system.%采用标准化的总线技术和软件技术开发的自动测试系统功能强大、通用性强,便于系统的集成化设计.基于PXI总线技术,提出了在VC++6.0环境下调用LabWindows/CVI生成的动态链接库对NI的PXI-5152示波器模块进行控制的方法.通过此方法实现了虚拟数字示波器的设计,经测试证实该虚拟数字示波器测量精度高、功能完善,达到了设计要求.采用上述方法还可开发三用表、频谱仪等虚拟仪器并已应用在某集成化测试系统中.

  5. Linux & Windows Operating Systems

    OpenAIRE

    Chawan, Pramila; Rathod, Vasundhara; Chim, Monali

    2013-01-01

    Comparisons between the Microsoft Windows and Linux computer operating systems are a long-running discussion topic within the personal computer industry. Throughout the entire period of the Windows 9x systems through the introduction of Windows 7, Windows has retained an extremely large retail sales majority among operating systems for personal desktop use, while Linux has sustained its status as the most prominent Free Software and Open Source operating system. After their initial clash, bot...

  6. Advanced energy efficient windows

    OpenAIRE

    Thomsen, Kirsten Engelund

    2007-01-01

    Windows should be paid special attention as they contribute a significant part of the total heat-loss coefficient of the building. Contrary to other parts of the thermal envelope the windows are not only heat loosers, but may gain heat in the day-time. Therefore there are possibilities for large energy savings. In terms of energy, windows occupy a special position compared with other thermal envelope structures due to their many functions: 1) windows let daylight into the building and provide...

  7. Redefining the Axion Window

    CERN Document Server

    Di Luzio, Luca; Nardi, Enrico

    2016-01-01

    A major goal of axion searches is to reach inside the parameter space region of realistic axion models. Currently, the boundaries of this region depend on somewhat arbitrary criteria, and it would be desirable to specify them in terms of precise phenomenological requirements. We consider hadronic axion models and classify the representations $R_Q$ of the new heavy quarks $Q$. By requiring that $i)$ the $Q$ are sufficiently short lived to avoid issues with long lived strongly interacting relics, $ii)$ no Landau poles are induced below the Planck scale, fifteen cases are selected, which define a phenomenologically preferred axion window bounded by a maximum (minimum) value of the axion-photon coupling about twice (four times) larger than commonly assumed. Allowing for more than one $R_Q$, larger couplings, as well as complete axion-photon decoupling, become possible.

  8. Pengaruh Window Level Dan Window Width Pada Lung Window Dan Mediastinum Window Pada Kualitas Citra CT-Scan Thorax

    OpenAIRE

    Gaol, Syahnaro Lumban

    2015-01-01

    This Research of image CT-SCAN thorax with influence of window level and window width, to obtain, get value of window level and optimal window width lung window and mediastinum window, so that get image of CT-SCAN thorax which with image quality. Image of CT-SCAN thorax obtained for mediastinum window use window width 350, 400, 450, 500 HU. And Window level 50,100,150 HU. While for lung window use window width 1000,1100 HU. The window level - 500-,600,-700,-800,-900,-1000 HU, by three observe...

  9. MIS-based sensors with hydrogen selectivity

    Science.gov (United States)

    Li; ,Dongmei; Medlin, J. William; McDaniel, Anthony H.; Bastasz, Robert J.

    2008-03-11

    The invention provides hydrogen selective metal-insulator-semiconductor sensors which include a layer of hydrogen selective material. The hydrogen selective material can be polyimide layer having a thickness between 200 and 800 nm. Suitable polyimide materials include reaction products of benzophenone tetracarboxylic dianhydride 4,4-oxydianiline m-phenylene diamine and other structurally similar materials.

  10. Performance Improvement of GaN Based Schottky Barrier Ultraviolet Photodetector by Adding a Thin AlGaN Window Layer

    Institute of Scientific and Technical Information of China (English)

    ZHOU Mei; ZHAO De-Gang

    2007-01-01

    We propose a new structure of GaN based Schottky barrier ultraviolet photodetector, in which a thin n-type AlGaN window layer is added on the conventional n--GaN/n+-GaN device structure. The performance of the Schottky barrier ultraviolet photodetector is found to be improved by the new structure. The simulation result shows that the new structure can reduce the negative effect of surface states on the performance of Schottky barrier GaN photodetectors, improving the quantum efficiency and decreasing the dark current. The investigations suggest that the new photodetector can exhibit a better responsivity by choosing a suitably high carrier concentration and thin thickness for the AlGaN window layer.

  11. Non-parametric convolution based image-segmentation of ill-posed objects applying context window approach

    OpenAIRE

    Kumar, Upendra; Lahiri, Tapobrata; Pal, Manoj Kumar

    2012-01-01

    Context-dependence in human cognition process is a well-established fact. Following this, we introduced the image segmentation method that can use context to classify a pixel on the basis of its membership to a particular object-class of the concerned image. In the broad methodological steps, each pixel was defined by its context window (CW) surrounding it the size of which was fixed heuristically. CW texture defined by the intensities of its pixels was convoluted with weights optimized throu...

  12. Smart windows with functions of reflective display and indoor temperature-control

    Science.gov (United States)

    Lee, I.-Hui; Chao, Yu-Ching; Hsu, Chih-Cheng; Chang, Liang-Chao; Chiu, Tien-Lung; Lee, Jiunn-Yih; Kao, Fu-Jen; Lee, Chih-Kung; Lee, Jiun-Haw

    2010-02-01

    In this paper, a switchable window based on cholestreric liquid crystal (CLC) was demonstrated. Under different applied voltages, incoming light at visible and infrared wavelengths was modulated, respectively. A mixture of CLC with a nematic liquid crystal and a chiral dopant selectively reflected infrared light without bias, which effectively reduced the indoor temperature under sunlight illumination. At this time, transmission at visible range was kept at high and the windows looked transparent. With increasing the voltage to 15V, CLC changed to focal conic state and can be used as a reflective display, a privacy window, or a screen for projector. Under a high voltage (30V), homeotropic state was achieved. At this time, both infrared and visible light can transmit which acted as a normal window, which permitted infrared spectrum of winter sunlight to enter the room so as to reduce the heating requirement. Such a device can be used as a switchable window in smart buildings, green houses and windshields.

  13. Design of Intelligent Window Based on GSM Control%基于GSM控制的智能窗设计

    Institute of Scientific and Technical Information of China (English)

    谷佳烨; 肖慧荣; 陈自波

    2014-01-01

    本文设计了一种使用手机短信控制的太阳能供电智能窗。系统以单片机为控制核心,使用GSM模块来进行信息的接收与发送,使用太阳能面板接收太阳能为系统提供电能。系统具备了智能开关、断电保护等功能,可使用短信人工遥控关闭或打开窗户,也可自行检测到雨水天气,自动将窗户关闭。%This paper designs a solar power supply intelligent window controlled by mobile phone short mes-sages. The system adopts single chip microcomputer as control core, the GSM module to receive and send informa-tion, and uses solar panels to provide power for the system. The system has intelligent switch and power failure protection function, which can use SMS remote control manual to close and open the window, and also can auto-matically close window when detecting rainfalls.

  14. Windows 7 for dummies

    CERN Document Server

    Rathbone, Andy

    2010-01-01

    Get more done and have more fun with Windows 7 Windows 7 is loaded with features, tools, and shortcuts designedto make life easier for all users. This handy guide is sure to makeWindows as clear as can be. It helps you get started, use foldersand files, find handy gadgets, and search on your PC or online. Open the book and find: Ways to find photos, music, and video on your PCAdvice on jazzing up the Windows 7 interfaceReasons for making the switch to Windows 7Tools for staying organizedSteps for setting up your user accounts and passwords

  15. Windows® Internals

    CERN Document Server

    Russinovich, Mark E; Ionescu, Alex

    2009-01-01

    See how the core components of the Windows operating system work behind the scenes-guided by a team of internationally renowned internals experts. Fully updated for Windows Server 2008 and Windows Vista, this classic guide delivers key architectural insights on system design, debugging, performance, and support-along with hands-on experiments to experience Windows internal behavior firsthand.Delve inside Windows architecture and internals:Understand how the core system and management mechanisms work-from the object manager to services to the registryExplore internal system data structures usin

  16. Advanced energy efficient windows

    DEFF Research Database (Denmark)

    Thomsen, Kirsten Engelund

    2007-01-01

    energy savings. In terms of energy, windows occupy a special position compared with other thermal envelope structures due to their many functions: 1) windows let daylight into the building and provide occupants with visual contact with their surroundings 2) windows protect against the outdoor climate 3......Windows should be paid special attention as they contribute a significant part of the total heat-loss coefficient of the building. Contrary to other parts of the thermal envelope the windows are not only heat loosers, but may gain heat in the day-time. Therefore there are possibilities for large......) windows transmit solar energy that may contribute to a reduction of energy consumption, but which may also lead to unpleasant overheating. In the following paragraphs the current use of windows is reviewed with an emphasis on energy, while special products like solar protection glazing and security...

  17. Energetic Performance of Windows

    Directory of Open Access Journals (Sweden)

    Magda Broşteanu

    2008-01-01

    Full Text Available The aim of this paper is to analyse the influence of windows in Bucharest climatic zone of the România through the simulation of the energy balance in a dwelling. This simulation may provide a comparing way for the energy saving design in the future buildings and some suggestions for the architects to adopt the optimal type of window according to local conditions. We give an overview of how windows are modeled in the Window6 Simulation Program. In this paper, several kinds of windows are introduced and compared using the Window6 and ISOVER Software. In addition, the potential energetic efficiency of four representative windows in Bucharest city of the România are analysed and compared using the CASAnova Software. Example results of calculation are shown too.

  18. Multiple high voltage power supply controls solution using compact, distributed Ethernet based PC boards and Linux/Windows based GUIS

    International Nuclear Information System (INIS)

    Compact Ethernet based High voltage PC boards have been developed, tested and produced to use as an integrated HV power supply unit to generate and control voltages varying from 0 to 2000 V dc from any OS independent PC platform. The Neutron gamma array (NAND) project at IUAC will need distributed control of at least 120 such units over a private Local Area Network to bias detectors. These Power supplies are being made as five independent boxes, each box consisting of 24 such HV PC boards and they will be interconnected using network switches. Presently, a compact two layer board with the PICO make DC-DC HV converter mounted on PCB, put together in a group of 24 of them, have been built and fully tested. The advantage of such a system is that, it is easily expandable to a large number of power supplies with low cost, globally accessible, multiple users in a network can set or read any power supply value through an OS independent PC. Control GUI applications are developed using C, IUAC PCLI, Qt C++ etc. and have been successfully tested. (author)

  19. Research on Windows Based Network Real-Time Application Development Technology%Windows平台上网络实时应用开发技术的研究

    Institute of Scientific and Technical Information of China (English)

    刘生建; 李俊琴

    2014-01-01

    Modern life cannot do without the Internet, network communication technology and computer originated in the first UNIX system and Windows platform, although it started late, but the support of Internet technology has made great progress. Now a lot of network game client is based on Windows platform. Using the underlying communication technology after years of development, also appeared all kinds of technical solutions, this paper summed up the Windows platform in the computer net-work communication technology of the main technical method.%现代生活离不开互联网,计算机的网络通信技术最先发源于UNIX系统,而Windows平台虽然起步稍晚,但是目前对互联网技术的支持也有长足的进步。现在很多的网络游戏客户端都是基于Windows平台的。使用的底层通信技术经过多年的发展,也出现了各种技术解决方案,该文研究概括总结了在Windows平台上计算机网络通信技术的主要技术方法。

  20. User friendly analysis of MR investigations of the cerebral perfusion: Windows {sup trademark} -based image processing; Benutzerfreundliche Auswertung von MR-Untersuchungen der zerebralen Perfusion: Windows {sup trademark} -basierte Bildverarbeitung

    Energy Technology Data Exchange (ETDEWEB)

    Wittsack, H.J.; Moedder, U. [Inst. fuer Diagnostische Radiologie, Univ. Duesseldorf (Germany); Ritzl, A. [Inst. fuer Medizin, Forschungszentrum Juelich (Germany)

    2002-06-01

    Purpose: Quick and user-friendly analysis of perfusion and diffusion weighted MRI by means of interactive computer software. Method: A Windows {sup trademark} -based software was developed for analysis of perfusion (PWI) and diffusion (DWI) MR imaging. The computer program was developed in the programming language C++ using optimized algorithms, so that a high computing speed on Win95/98/NT systems is achieved. The established SVD algorithms of Oestergaard et al. for quantitative perfusion analysis were implemented. Results: Perfusion parameter maps of the cerebral blood flow (rCBF), the mean transit time (MTT) and the cerebral blood volume (rCBV) in consideration of the arterial input function (AIF) can be calculated and visualized using color tables. Additionally, the calculation of ''time-to-peak'' maps (TTP) and of maps of the percentage change in signal intensity (PC) is possible. The analysis of n = 10 normal persons shows perfusion values that agree with those found in the literature. Discussion: With the computer program developed here color-coded perfusion parameter maps can be calculated easily. Because of the high computing speed it is possible to get information about tissue perfusion on the basis of the large MR data sets even in acute investigations. (orig.) [German] Ziel: Schnelle und bedienerfreundliche Auswertung von perfusions- und diffusions-gewichteten MRT-Daten mittels interaktiver Auswertesoftware. Methoden: Eine Windows {sup trademark} -basierte Software zur Auswertung von Perfusions- (PWI) und Diffusions-MRT (DWI) wurde entwickelt. Das Computerprogramm wurde in der Programmiersprache C++ unter Verwendung optimierter Algorithmen entwickelt, so dass eine hohe Rechengeschwindigkeit auf Win95/98/NT-Systemen erreicht wird. Die etablierten SVD-Algorithmen von Oestergaard zur quantitativen Perfusions-Auswertung wurden implementiert. Ergebnisse: Perfusions-Parameterbilder des zerebralen Blutflusses (rCBF), der mittleren

  1. Design of an Access Control Model Based on Multi-User Windows Azure Platform%基于多用户的Windows Azure平台下的访问控制模型的设计

    Institute of Scientific and Technical Information of China (English)

    卢朝晖

    2015-01-01

    In this paper, based on the Windows Azure platform presented by Microsoft, the traditional access control model is analyzed, and it is found that the traditional access model lacks flexibility and hard to meet the requirement of dynamic change. Aiming at the Microsoft’s cloud computing model, a multi-user access control model is presented in this paper. And in the model two expressions are adopted---- user layer and platform layer. In the user layer, the user, role, task and access are redefined. And in the platform layer, on the basis of the definition, the three parts of user logging, access control and access management are segmented. Through simulation experiments, the model presented in this paper, compared to the traditional role-task model, is superior in its access number, average task completion time and access failure rate.%在微软提出的Window Azure平台模型上,对传统的访问控制模型进行了分析,发现传统的访问模型缺乏灵活性,难以适应动态变化的特点。本文针对微软的云计算模型,提出了面向多用户的访问控制模型,在模型中采用了用户层和平台层两种表示方法,在用户层中对用户、角色、任务、权限进行了重新定义,在平台层中针对用户层定义在用户登录,权限访问控制以及权限管理三个部分进行细化。仿真实验表明,本文的模型相比于传统的角色-任务模型在访问数量,任务平均完成时间,访问失败率具有一定优越性。

  2. Research on MAC Protocol of Underwater Acoustic Network Based on Optimal-window%基于最优窗口的水声网络MAC协议研究

    Institute of Scientific and Technical Information of China (English)

    张锦灿; 陈卫东; 王大宇

    2016-01-01

    海洋水声信道的复杂性和多变性会对水声网络中的介质访问控制协议性能造成影响。为更好地适应水声环境,对水声网络中基于竞争窗口的MAC协议进行改进,提出了基于最优窗口的MAC协议以及窗口值的优化策略,利用开源平台NS⁃3对其进行仿真,分析得出了水声网络节点数量、通信带宽和数据包大小与最优窗口大小之间的关系。仿真结果表明,在最优窗口下水声网络的吞吐量得到了显著提升,这一结论将为今后构建水声网络提供理论基础和数据支撑。%The complexity and variability of oceanic acoustic channel have great influence on the performance of Media Access Control (MAC) protocol of Underwater Acoustic Network (UAN).To be better adapted to underwater circumstance,a strategy of opti⁃mal⁃window has been proposed to improve the performance of MAC protocol based on Contention Window (CW).By using the open source network simulation platform NS⁃3,the relationship between the optimal⁃window and the number of nodes,communication band⁃width and size of packet is analyzed in an underwater circumstance.The simulation result shows that in optimal⁃window,the throughput of UAN is evidently improved.The result provides the data support and a solid theoretical basis for building UANs in the future.

  3. An introduction to X Window application development.

    OpenAIRE

    Rust, David Michael

    1992-01-01

    Approved for public release; distribution is unlimited The challenge to developing applications for computer-based windowing systems is generating code for the graphical interface elements. Each windowing system offers its own set of protocols for building the graphical units, but these protocols are rarely portable across different hardware platforms. The X Window System transcends many of these incompatibilities and offers a standard for creating graphics. It is operating sys...

  4. State-of-the-art Hydrology Education: Development of Windows-based and Web-based Interactive Teaching-Learning Software

    Science.gov (United States)

    Chu, X.

    2011-12-01

    This study, funded by the NSF CAREER program, focuses on developing new methods to quantify microtopography-controlled overland flow processes and integrating the cutting-edge hydrologic research with all-level education and outreach activities. To achieve the educational goal, an interactive teaching-learning software package has been developed. This software, with enhanced visualization capabilities, integrates the new modeling techniques, computer-guided learning processes, and education-oriented tools in a user-friendly interface. Both Windows-based and web-based versions have been developed. The software is specially designed for three major user levels: elementary level (Level 1: K-12 and outreach education), medium level (Level 2: undergraduate education), and advanced level (Level 3: graduate education). Depending on the levels, users are guided to different educational systems. Each system consists of a series of mini "libraries" featured with movies, pictures, and documentation that cover fundamental theories, varying scale experiments, and computer modeling of overland flow generation, surface runoff, and infiltration processes. Testing and practical use of this educational software in undergraduate and graduate teaching demonstrate its effectiveness to promote students' learning and interest in hydrologic sciences. This educational software also has been used as a hydrologic demonstration tool for K-12 students and Native American students through the Nurturing American Tribal Undergraduate Research Education (NATURE) program and Science, Technology, Engineering and Mathematics (STEM) outreach activities.

  5. A Study of Wind Tunnel Data Acquisition System Based on LabWindows/CVI 8.5%基于虚拟仪器的扫描阀风洞数据采集系统研究

    Institute of Scientific and Technical Information of China (English)

    李蓓; 李一滨

    2011-01-01

    This paper presents the data acquisition about scanning valve system in wind tunnel test which is based on the virtual instrument environment, such as the LabWindows/CVI. The test system provided a good measure interface for the users by the LabWindows/CVI and completed the information configuration about module parameters of the system, scanning parameters of the system and trigger mode. It also provided a real - time measurement, display, save and print output about the channel measurement which can selected in the stress testing experimental system. This system possessed a friendly man - machine interface and easy maneuverability,it greatly increased the effectiveness and reliability of measurement.%针对增压连续式风洞扫描阀测量系统的实验,设计了一种基于虚拟仪器LabWindows/CVI开发环境下的风洞扫描阀系统实验数据采集系统,阐述了该系统的方案设计,给出了系统的主要软件涉及构成及采集流程图.该系统为用户提供友好的人机交互界面和易操作性,完成对扫描阀测试实验系统模块参数、系统扫描参数、触发模式的信息配置,实现了对压力测试各通道数据的实时测量、显示、保存及打印输出.实验结果证实该系统提高了测量的有效性和可靠性.

  6. A selective attention-based contextual perception approach for a humanoid robot

    Institute of Scientific and Technical Information of China (English)

    Yanrong JIANG; Nanfeng XIAO

    2007-01-01

    A humanoid robot is always flooded by sensed information when sensing the environment, and it usually needs significant time to compute and process the sensed information. In this paper, a selective attention-based contextual perception approach was proposed for humanoid robots to sense the environment with high efficiency. First, the connotation of attention window (AW) is extended to make a more general and abstract definition of AW, and its four kinds of operations and state transformations are also discussed. Second, the attention control policies are described, which integrate intensionguided perceptual objects selection and distractor inhibition, and can deal with emergent issues. Distractor inhibition is used to filter unrelated information. Last, attention policies are viewed as the robot's perceptual modes, which can control and adjust the perception efficiency. The experimental results show that the presented approach can promote the perceptual efficiency significantly, and the perceptual cost can be effectively controlled through adopting different attention policies.

  7. Userassist Key-Value Forensic based on Windows Registry%Windows下注册表Userassist键值取证分析

    Institute of Scientific and Technical Information of China (English)

    杨佳; 麦永浩; 王宁; 夏晓光; 周静

    2014-01-01

    在电子数据取证中,注册表取证一直处于非常重要的地位,注册表信息中含有许多重要的证据来源,里面包含了大量用户的操作信息以及各种操作行为的时间戳.注册表的时间戳,路径等键值信息能够很好的揭示犯罪嫌疑人的动作和行为.文中主要从windows xp,windows 7里面userassist键值的角度详细地进行分析,并结合本人在湖北警官学院电子取证实验室的取证实战经验中的一个案例来说明userassist键值在取证中的作用.

  8. Windows 8 tweaks

    CERN Document Server

    Sinchak, Steve

    2013-01-01

    Acres of Windows 8 tweaks from a Microsoft MVP and creator of Tweaks.com! From a Microsoft MVP, who is also the savvy creator of Tweaks.com, comes this ultimate collection of Windows 8 workarounds. Steve Sinchak takes you way beyond default system settings, deep under the hood of Windows 8, down to the hidden gems that let you customize your Windows 8 system like you wouldn't believe. From helping you customize the appearance to setting up home networking, sharing media, and squeezing every ounce of performance out of the OS, this book delivers. Get ready to rock and roll with Wind

  9. Windows 8 secrets

    CERN Document Server

    Thurrott, Paul

    2012-01-01

    Tips, tricks, treats, and secrets revealed on Windows 8 Microsoft is introducing a major new release of its Windows operating system, Windows 8, and what better way to learn all its ins and outs than from two internationally recognized Windows experts and Microsoft insiders, authors Paul Thurrott and Rafael Rivera? They cut through the hype to get at useful information you'll not find anywhere else, including what role this new OS plays in a mobile and tablet world. Regardless of your level of knowledge, you'll discover little-known facts about how things work, what's new and different, and h

  10. Programming Windows Azure

    CERN Document Server

    Krishnan, Sriram

    2010-01-01

    Learn the nuts and bolts of cloud computing with Windows Azure, Microsoft's new Internet services platform. Written by a key member of the product development team, this book shows you how to build, deploy, host, and manage applications using Windows Azure's programming model and essential storage services. Chapters in Programming Windows Azure are organized to reflect the platform's buffet of services. The book's first half focuses on how to write and host application code on Windows Azure, while the second half explains all of the options you have for storing and accessing data on the plat

  11. Beginning Windows 8

    CERN Document Server

    Halsey, Mike

    2012-01-01

    Windows 8 has been described by Microsoft as its 'boldest' Windows release ever. Beginning Windows 8 takes you through the new features and helps you get more out of the familiar to reveal the possibilities for this amazing new operating system. You will learn, with non-technical language used throughout, how to get up and running in the new Windows interface, minimize downtime, maximize productivity, and harness the features you never knew existed to take control of your computer and enjoy the peace of mind and excitement that comes with it. From tips and tweaks to easy-to-follow guides and d

  12. Mastering Windows 7 Deployment

    CERN Document Server

    Finn, Aidan; van Surksum, Kenneth

    2011-01-01

    Get professional-level instruction on Windows 7 deployment tools Enterprise-level operating system deployment is challenging and requires knowledge of specific tools. It is expected that Windows 7 will be extensively deployed in businesses worldwide. This comprehensive Sybex guide provides thorough coverage of the Microsoft deployment tools that were specifically created for Windows 7, preparing system administrators, MIS professionals, and corporate programmers to tackle the task effectively.Companies worldwide are expected to deploy Windows 7 as their enterprise operating system; system admi

  13. Design of intelligent window system based on multisensor%基于多传感器的智能窗系统设计

    Institute of Scientific and Technical Information of China (English)

    李硕; 贾子庆; 张明玮

    2011-01-01

    为促进建筑智能化,设计了一种新型智能窗,讨论了智能窗的软硬件系统设计方案.应用压力传感器,温度传感器,光强传感器,红外遥控模块等实现环境数据采集,选用8051系列单片机进行信号处理,并控制步进电机调整智能窗扇叶张角.经实脸测试,风速感应和控制精度优于0.1 m/s,温度感应精度5%RH,光强感应精度5 lux.实现了测童显示风强、温度、充强等信息并调整扇窗开合程度,从而调节室内环境.可以通过嵌入式系统设定控制量值,适合对环境要求不同的用户使用.%In purpose of promoting building automation, a new kind of intelligent window was designed. A solution, which contained the design of both hardware and software of intelligent window, was discussed in this passage. Based on multisensor,including pressure sensor, humidity sensor, optical sensor and infrared remote controller, the intelligent window can get the environmental parameters 8051 series of SCM was used to process the digital signal, which can also control the stepper.Experiments indicate that the control accuracy of wind can reach 0.lm/s, 5%RH in humidity and 51ux in illumination. The intelligent window can show the information of wind scale, level of humidity, light intensity and adjust the windows open angle, in order to control the interior environment. Users can also set the control parameters through the embedded system.

  14. 基于Windows系统的计算机开机取证研究%Research of Computer Live Forensics based on Windows

    Institute of Scientific and Technical Information of China (English)

    胡雪峰; 杨柳; 周磊; 朱逢春

    2013-01-01

    With the rapid development of the technology of computer communication, the Internet has full access to our life.Information systems have become the infrastructure of country, supporting various aspects of nation-building, such as scientiifc research, energy, communications, transportation and so on. Information systems have become important resources for human society. On the other hand, more and more computer-related crimes make computer security issues increasingly serious. In this paper, with computer live forensics based on Windows for study, operating procedures and methods of computer live forensics based on Windows are discussed in detail. A set of practical operating speciifcations are summarized,providing reference for carrying out computer live forensics based on Windows lawfully and efifciently.%随着计算机通信技术的飞速发展,互联网已全面进入千家万户,信息系统已成为国家的基础设施,支撑着科研、能源,通信、交通等各个方面,成为人类社会所必需的重要资源。与此同时,利用计算机与网络实施的犯罪活动也日益增多,信息系统的安全问题也更为严峻。文章以基于Windows系统的计算机开机取证为研究对象,结合实际工作对Windows系统开机取证的操作流程、技术方法进行了详细讨论,并总结出一套实用性较强的操作规范,为合法、高效地进行Windows系统开机取证提供了参考。

  15. The Moving Window Technique: A Window into Developmental Changes in Attention during Facial Emotion Recognition

    Science.gov (United States)

    Birmingham, Elina; Meixner, Tamara; Iarocci, Grace; Kanan, Christopher; Smilek, Daniel; Tanaka, James W.

    2013-01-01

    The strategies children employ to selectively attend to different parts of the face may reflect important developmental changes in facial emotion recognition. Using the Moving Window Technique (MWT), children aged 5-12 years and adults ("N" = 129) explored faces with a mouse-controlled window in an emotion recognition task. An…

  16. Direct quantification of lycopene in products derived from thermally processed tomatoes: optothermal window as a selective, sensitive, and accurate analytical method without the need for preparatory steps.

    Science.gov (United States)

    Bicanic, Dane; Swarts, Jan; Luterotti, Svjetlana; Pietraperzia, Giangaetano; Dóka, Otto; de Rooij, Hans

    2004-09-01

    The concept of the optothermal window (OW) is proposed as a reliable analytical tool to rapidly determine the concentration of lycopene in a large variety of commercial tomato products in an extremely simple way (the determination is achieved without the need for pretreatment of the sample). The OW is a relative technique as the information is deduced from the calibration curve that relates the OW data (i.e., the product of the absorption coefficient beta and the thermal diffusion length micro) with the lycopene concentration obtained from spectrophotometric measurements. The accuracy of the method has been ascertained with a high correlation coefficient (R = 0.98) between the OW data and results acquired from the same samples by means of the conventional extraction spectrophotometric method. The intrinsic precision of the OW method is quite high (better than 1%), whereas the repeatability of the determination (RSD = 0.4-9.5%, n= 3-10) is comparable to that of spectrophotometry.

  17. 基于Windows Mobile开发手机端页面技术的研究及其应用%Research and application of the development technology of the mobile terminal page based on Windows Mobile

    Institute of Scientific and Technical Information of China (English)

    李茂桂; 邹北骥; 李建峰

    2010-01-01

    文章主要介绍了基于Windows Mobile页面开发的技术和主要方法,研究了手机端页面程序开发的若干关键技术,提出了提高Windows Mobile页面性能的一些方法和技巧,并在此基础上,开发基于Windows Mobile的长沙移动通信线路巡视巡检系统手机端页面应用程序,并投入了使用.实际应用结果表明,文章提出的手机端页面程序开发方法可有效地提高系统的运行效率.

  18. In situ ultraviolet treatment in an Ar ambient upon p-type hydrogenated amorphous silicon-carbide windows of hydrogenated amorphous silicon based solar cells

    International Nuclear Information System (INIS)

    We proposed an in situ postdeposition ultraviolet treatment in an Ar ambient (UTA) to improve the p/i interface of amorphous silicon based solar cell. We have increased the conversion efficiency by ∼16% by improving the built-in potential and reducing recombination at the p/i interface. Through spectroscopic ellipsometry and Fourier-transform infrared measurements, it is concluded that the UTA process induces structural modification of the p-type hydrogenated amorphous silicon-carbide (p-a-SiC:H) window layer. An ultrathin p-a-SiC:H contamination layer formed during the UTA process acts as a buffer layer at the interface

  19. Analysis and Exploit of CSRSS Vulnerabilities based on Windows%基于Windows的CSRSS进程漏洞分析与利用

    Institute of Scientific and Technical Information of China (English)

    李孟哲; 武学礼; 张涛; 伟平

    2014-01-01

    With advances in technology, Windows operating system has improved steadily. The combination of many memory protection mechanisms makes the traditional buffer-overflow-based attacks to be more useless. In this case, the kernel vulnerabilities can be used to break through the security line of defense as a starting point. If these vulnerabilities are used by viruses and Trojans, the defense of security software will be collapsed. That means a heavy blow to the system security. Since the Microsoft Windows NT's development, the operating system has been designed to support a number of different subsystems, such as POSIX or OS/2. This paper opens a series of CSRSS-oriented study, aiming at describing the uncovered CSRSS mechanism internals. Although some great research has already been carried out by some articles, no thorough case study is available until now. This paper covers both the very basic ideas and their implementations, as well as the recent CSRSS changes applied in modern operating systems. In addition, standing on the point of safety, in this paper, the Windows kernel vulnerabilities are classified, a set of vulnerability research process is presented. According to the process, this article studies local privilege escalation vulnerability and denial of service vulnerability about CSRSS. Through the analysis of the CVE-2011-1281 vulnerability, use-after-free exploit not only appears in the browser vulnerabilities, but also in the software of the system.%随着技术的进步,Windows 操作系统日益完善,多种内存保护技术的结合使得传统的基于缓冲区溢出攻击越来越困难。在这种情况下,内核漏洞往往可以作为突破安全防线的切入点,一旦漏洞被病毒、木马利用,将会彻底瓦解安全软件的所有防御,沉重打击系统安全。随着 Windows NT 的开发,操作系统被设计成可以支持多个子系统,包括 POSIX、OS/2以及Windows 子系统(也被称为客户端/服

  20. The development of WIPPVENT, a windows based interactive mine ventilation simulation software program at the Waste Isolation Pilot Plant

    Energy Technology Data Exchange (ETDEWEB)

    McDaniel, K.H. [Westinghouse Electric Corp., Carlsbad, NM (United States). Waste Isolation Div.; Wallace, K.G. Jr. [Mine Ventilation Services, Inc. (United States)

    1995-11-01

    An interactive mine ventilation simulation software program (WIPPVENT) was developed at the Waste Isolation Pilot Plant (WIPP). The WIPP is a US Department of Energy (DOE) research and development project located near Carlsbad, New Mexico. The facility is designed to provide a permanent, safe underground disposal of US defense generated transuranic waste in bedded salt. In addition to it`s regular functions, the underground ventilation system is engineered to prevent the uncontrolled spread of radioactive materials in the unlikely event of a release. To enhance the operability system, Westinghouse Electric Corporation has developed an interactive mine ventilation simulation software program (WIPPVENT). While WIPPVENT includes most of the functions of the commercially available simulation program VNETPC ({copyright} 1991 Mine Ventilation Services, Inc.), the user interface has been completely rewritten as a Windows{reg_sign} application and screen graphics have been added. WIPPVENT is designed to interact with the WIPP ventilation monitoring systems through the site wide Central Monitoring System.

  1. 基于Samba的UNIX与Windows互联技术%On Interconnection of Unix and Windows Based on Samba

    Institute of Scientific and Technical Information of China (English)

    周海光

    2001-01-01

    This paper introduces how to implement interconnection of UNIX and Windows using Samba. The freeware of Samba provides an easy and seamless link between the two operating systems. This method raises the exploitation rate of online resources%评细介绍了使用Samba软件来实现UNIX和Windows互联的集成技术,这种自由软件可以非常容易地实现这两种操作系统的互联,简化网络的使用方法,功能丰富,明显地提高网络资源的利用率。

  2. Efficient Windows Collaborative

    Energy Technology Data Exchange (ETDEWEB)

    Nils Petermann

    2010-02-28

    The project goals covered both the residential and commercial windows markets and involved a range of audiences such as window manufacturers, builders, homeowners, design professionals, utilities, and public agencies. Essential goals included: (1) Creation of 'Master Toolkits' of information that integrate diverse tools, rating systems, and incentive programs, customized for key audiences such as window manufacturers, design professionals, and utility programs. (2) Delivery of education and outreach programs to multiple audiences through conference presentations, publication of articles for builders and other industry professionals, and targeted dissemination of efficient window curricula to professionals and students. (3) Design and implementation of mechanisms to encourage and track sales of more efficient products through the existing Window Products Database as an incentive for manufacturers to improve products and participate in programs such as NFRC and ENERGY STAR. (4) Development of utility incentive programs to promote more efficient residential and commercial windows. Partnership with regional and local entities on the development of programs and customized information to move the market toward the highest performing products. An overarching project goal was to ensure that different audiences adopt and use the developed information, design and promotion tools and thus increase the market penetration of energy efficient fenestration products. In particular, a crucial success criterion was to move gas and electric utilities to increase the promotion of energy efficient windows through demand side management programs as an important step toward increasing the market share of energy efficient windows.

  3. Multi-functional windows

    Science.gov (United States)

    Nag, Nagendra; Goldman, Lee M.; Balasubramanian, Sreeram; Sastri, Suri

    2013-06-01

    The requirements for modern aircraft are driving the need for conformal windows for future sensor systems. However, limitations on optical systems and the physical properties of optically transparent materials currently limit the geometry of existing windows and window assemblies to faceted assemblies of flat windows held in weight bearing frames. Novel material systems will have to be developed which combine different materials (e.g. ductile metals with transparent ceramics) into structures that combine transparency with structural integrity. Surmet's demonstrated ability to produce novel transparent ceramic/metal structures will allow us to produce such structures in the types of conformal shapes required for future aircraft applications. Furthermore, the ability to incorporate transparencies into such structures also holds out the promise of creating multi-functional windows which provide a broad range of capabilities that might include RF antennas and de-icing in addition to transparency. Recent results in this area will be presented.

  4. Visual merchandising window display

    Directory of Open Access Journals (Sweden)

    Opris (Cas. Stanila M.

    2013-12-01

    Full Text Available Window display plays a major part in the selling strategies; it does not only include the simple display of goods, nowadays it is a form of art, also having the purpose of sustaining the brand image. This article wants to reveal the tools that are essential in creating a fabulous window display. Being a window designer is not an easy job, you have to always think ahead trends, to have a sense of colour, to know how to use light to attract customers in the store after only one glance at the window. The big store window displays are theatre scenes: with expensive backgrounds, special effects and high fashion mannequins. The final role of the displays is to convince customers to enter the store and trigger the purchasing act which is the final goal of the retail activity.

  5. MCA Based Performance Evaluation of Project Selection

    CERN Document Server

    Bakshi, Tuli

    2011-01-01

    Multi-criteria decision support systems are used in various fields of human activities. In every alternative multi-criteria decision making problem can be represented by a set of properties or constraints. The properties can be qualitative & quantitative. For measurement of these properties, there are different unit, as well as there are different optimization techniques. Depending upon the desired goal, the normalization aims for obtaining reference scales of values of these properties. This paper deals with a new additive ratio assessment method. In order to make the appropriate decision and to make a proper comparison among the available alternatives Analytic Hierarchy Process (AHP) and ARAS have been used. The uses of AHP is for analysis the structure of the project selection problem and to assign the weights of the properties and the ARAS method is used to obtain the final ranking and select the best one among the projects. To illustrate the above mention methods survey data on the expansion of optic...

  6. Action modulates object-based selection

    OpenAIRE

    Karina J Linnell; Humphreys, Glyn W; McIntyre, Dave B.; Laitinen, Sauli; Wing, Alan M.

    2005-01-01

    Cueing attention to one part of an object can facilitate discrimination in another part (Experiment 1 [Duncan, j. (1984). Selective attention and the organization of visual information. Journal of Experimental Psychology: General, 113, 501-517]; [Egly, R., Driver, J., and Rafal, R. D. (1994). Shifting visual attention between objects and locations: evidence from normal and parietal lesion divisions. Journal of Experimental Psychology: Human Perception and Performance, 123, 161-177]). We show ...

  7. CSS for Windows 8 app development

    CERN Document Server

    Foster, Jeremy

    2013-01-01

    CSS for Windows 8 App Development is your learning guide for CSS - the language of great Windows 8-style apps. Learn the built-in styles that make the built-in controls shine, how to define them, and how to use CSS to give your custom app assets that beautiful Modern UI style. CSS (Cascading Style Sheets) is the clear standard for styling web applications, and with HTML, CSS, and JavaScript now powering apps on Windows 8, it's the clear standard there as well. CSS is a powerful styling and layout language that greatly simplifies the selection of page elements and their visual display, layout,

  8. Black Box Chimera Check (B2C2): a Windows-Based Software for Batch Depletion of Chimeras from Bacterial 16S rRNA Gene Datasets.

    Science.gov (United States)

    Gontcharova, Viktoria; Youn, Eunseog; Wolcott, Randall D; Hollister, Emily B; Gentry, Terry J; Dowd, Scot E

    2010-01-01

    The existing chimera detection programs are not specifically designed for "next generation" sequence data. Technologies like Roche 454 FLX and Titanium have been adapted over the past years especially with the introduction of bacterial tag-encoded FLX/Titanium amplicon pyrosequencing methodologies to produce over one million 250-600 bp 16S rRNA gene reads that need to be depleted of chimeras prior to downstream analysis. Meeting the needs of basic scientists who are venturing into high-throughput microbial diversity studies such as those based upon pyrosequencing and specifically providing a solution for Windows users, the B2C2 software is designed to be able to accept files containing large multi-FASTA formatted sequences and screen for possible chimeras in a high throughput fashion. The graphical user interface (GUI) is also able to batch process multiple files. When compared to popular chimera screening software the B2C2 performed as well or better while dramatically decreasing the amount of time required generating and screening results. Even average computer users are able to interact with the Windows .Net GUI-based application and define the stringency to which the analysis should be done. B2C2 may be downloaded from http://www.researchandtesting.com/B2C2. PMID:21339894

  9. Forensic Identification of Automobile Window Glass Manufacturers in Japan Based on the Refractive Index, X-ray Fluorescence, and X-ray Absorption Fine Structure.

    Science.gov (United States)

    Funatsuki, Atsushi; Takaoka, Masaki; Shiota, Kenji; Kokubu, Daisuke; Suzuki, Yasuhiro

    2016-01-01

    In this study, 3 automobile window glass manufacturers were identified based on refractive index, XRF, and XAFS analyses. The samples were classified into the corresponding groups using XRF, which should be the first step for identification. Samples having different manufacturing times showed differences in the refractive index. Based on XAFS, the amplitude of the EXAFS spectra and the intensities of Fourier transforms differed between manufacturers. In the scheme for manufacturer identification proposed in this study, performing XRF and refractive index studies is the first step. The concentrations of CeO2, MgO, Al2O3, and K2O allowed us to distinguish among manufacturers. Secondly, for samples containing cerium, we discriminated between manufacturer based on the amplitude of the EXAFS spectra and the intensities of Fourier transforms. As a result, the manufacturers of the 75 samples used in this study were multilaterally identified. PMID:26860567

  10. MCA Based Performance Evaluation of Project Selection

    Directory of Open Access Journals (Sweden)

    Tuli Bakshi

    2011-04-01

    Full Text Available Multi-criteria decision support systems are used in various fields of human activities. In every alternativemulti-criteria decision making problem can be represented by a set of properties or constraints. Theproperties can be qualitative & quantitative. For measurement of these properties, there are differentunit, as well as there are different optimization techniques. Depending upon the desired goal, thenormalization aims for obtaining reference scales of values of these properties. This paper deals with anew additive ratio assessment method. In order to make the appropriate decision and to make a propercomparison among the available alternatives Analytic Hierarchy Process (AHP and ARAS have beenused. The uses of AHP is for analysis the structure of the project selection problem and to assign theweights of the properties and the ARAS method is used to obtain the final ranking and select the best oneamong the projects. To illustrate the above mention methods survey data on the expansion of optical fibrefor a telecommunication sector is used. The decision maker can also used different weight combination inthe decision making process according to the demand of the system.

  11. Rails on Windows

    CERN Document Server

    Hibbs, Curt

    2007-01-01

    It's no secret that the entire Ruby onRails core team uses OS X as their preferreddevelopment environment. Becauseof this, it is very easy to findauthoritative information on the webabout using Rails on OS X. But the truthis that Windows developers using Railsprobably outnumber those using otherplatforms. A Windows development environmentcan be just as productive asany other platform. This is a guide to developing with Rubyon Rails under Windows. It won't teachyou how to write Ruby on Rails web applications,but it will show you what toolsto use and how to set them up to createa complete Rail

  12. Windows 7 resource kit

    CERN Document Server

    Northrup, Tony; Honeycutt, Jerry; Wilson, Ed

    2009-01-01

    In-depth and comprehensive, this RESOURCE KIT delivers the information you need to administer your Windows 7 system. You get authoritative technical guidance from those who know the technology best-Microsoft Most Valuable Professionals (MVPs) and the Windows 7 product team-along with essential scripts and resources. In addition, "Direct from the Source" sidebars offer deep insights and troubleshooting tips from the Windows 7 team. Get expert guidance on how to: Use Microsoft Deployment Toolkit best practices and tools. Plan user-state migration and test application compatibility.

  13. Windows 8 simplified

    CERN Document Server

    McFedries, Paul

    2012-01-01

    The easiest way for visual learners to get started with Windows 8 The popular Simplified series makes visual learning easier than ever, and with more than 360,000 copies sold, previous Windows editions are among the bestselling Visual books. This guide goes straight to the point with easy-to-follow, two-page tutorials for each task. With full-color screen shots and step-by-step directions, it gets beginners up and running on the newest version of Windows right away. Learn to work with the new interface and improved Internet Explorer, manage files, share your computer, and much more. Perfect fo

  14. The Efficient Windows Collaborative

    Energy Technology Data Exchange (ETDEWEB)

    Petermann, Nils

    2006-03-31

    The Efficient Windows Collaborative (EWC) is a coalition of manufacturers, component suppliers, government agencies, research institutions, and others who partner to expand the market for energy efficient window products. Funded through a cooperative agreement with the U.S. Department of Energy, the EWC provides education, communication and outreach in order to transform the residential window market to 70% energy efficient products by 2005. Implementation of the EWC is managed by the Alliance to Save Energy, with support from the University of Minnesota and Lawrence Berkeley National Laboratory.

  15. 基于Qt/Embedded的嵌入式GUI的窗口设计%Windows Designing of Embedded GUI Based on Qt/Embedded

    Institute of Scientific and Technical Information of China (English)

    丽娜

    2012-01-01

    GUI namely the graphical user interface is a kind of userinterface that is b ased on the graphics,it plays an important role in creating software of embedded system.Presently using the GUI system which is based on the Qt has become the main solution to the development of embedded visual software system.This paper Is mostly involved with the most critical points related to widget designing when it comes to program designing.The keys are creating windows,windows layout,signals and slots.%GUI即图形用户界面是一种以图形作为基础的用户界面,它是嵌入式系统软件开发的非常重要的一部分,使用一个基于Qt的GUI系统目前已成为嵌入式可视化软件系统开发的主要解决方案。文中主要探讨程序设计时与窗口部件设计相关的最为关键的几点,即:窗口创建、窗口布局、信号与槽。

  16. Research of the Method Live Forensics Based on Windows%基于Windows系统的开机取证方法研究

    Institute of Scientific and Technical Information of China (English)

    黄文汉

    2012-01-01

      为了方便实现windows系统现场证据的收集。通过根据计算机犯罪现场情况的不同,对在执行开机取证操作时,获取系统数据流程和方法会发生变化情况的研究,给出了基于Windows系统的几种常用的开机取证方法。该方法为有效实施打击计算机犯罪,保障计算机系统信息安全提供有力工具及手段,促进计算机取证技术的实际应用。%  In order to facilitate the implementation of windows system field evidence collection. According to the different situa⁃tion of computer crime scene, in the implementation of the boot forensics operations, access to system data flow and method will change a case study is given based on Windows system, several commonly used starting method of obtaining evidence. The meth⁃od for the effective implementation of safeguard against computer crime, information security of computer system provides pow⁃erful tools and means, promote the practical application of computer forensics technology.

  17. Windows PowerShell Cookbook For Windows, Exchange 2007, and MOM V3

    CERN Document Server

    Holmes, Lee

    2008-01-01

    This Cookbook provides hundreds of tested scripts that you can use right away to administer Windows systems using Microsoft's new tool-everything from automating routine tasks to working with files, event logs and other forms of structured data to managing the users and resources of complex Windows networks. Along with its task-based introduction to the Windows PowerShell scripting language and environment, this book meets the needs of system administrators at any level.

  18. Recent advancements in the "water-window" microscopy with laser-plasma SXR source based on a double stream gas-puff target

    Science.gov (United States)

    Wachulak, P. W.

    2016-09-01

    An overview of our recent developments, regarding "water-window" soft X-ray (SXR) microscopy based on a laser-plasma double stream gas puff target sources is presented. The work, presented herein, describes two approaches to SXR microscopy. The first one is a low spatial resolution, achromatic SXR microscopy, employing Wolter type-I objective. The second one is a nanometer spatial resolution SXR microscopy, with the use of a Fresnel zone plate objective, for imaging various objects with quasimonochromatic light, emitted from a double stream gas puff target based short wavelength source. The developments regarding both systems are presented, as well as the possible applications, for which the SXR microscope was already employed. Such compact, table-top size, laboratory type microscopy setups may be employed in the near future for complementary-like studies to other, often used, microscopy techniques.

  19. 基于WINDOWS+RTX的舰炮火控测试评估系统开发%Development of Test and Evaluation System for Fire Control of Naval Gun Based on Windows Adding in RTX Technology

    Institute of Scientific and Technical Information of China (English)

    王立红; 方华

    2012-01-01

    A test and evaluation system for fire control of naval gun is designed by utilizing digital simulation and windows adding in RTX technology, which provides a technical method for checking tactical function of naval gun weapon and fire control calculation accuracy. The equipment has been used in engineer practice of XX naval gun weapon.%采用数字仿真方法和WINDOWS+ RTX技术设计一套舰炮火控测试评估系统,为检查舰炮武器战术功能和火控精度提供了一种技术途径,已成功应用于××型舰炮武器工程实践中.

  20. The Structure of Moodle Platform Based on Windows 2002 Server and IIS 6.0 Environment%基于Windows 2003 Server、IIS 6.0环境Moodle平台的搭建

    Institute of Scientific and Technical Information of China (English)

    刘永铎

    2009-01-01

    Moodle平台的Web服务器软件官方指定为Apache,目前世界上有超过30%的用户使用微软IIS作为Web服务器软件.在Windows 2003 Server操作系统环境下,使用IIS 6.0作为Web服务器软件搭建Moodle平台具有现实意义.

  1. Non-local SAR Image Despeckling Based on Similar Pixels Selected

    Directory of Open Access Journals (Sweden)

    Li Guang-ting

    2012-06-01

    Full Text Available Based on the ratio distance pixel-relativity and thresholding pixel-similarity, a modified non-local filter is proposed for SAR image despeckling in this paper. Firstly, the ratio distance pixel-relativity is obtained by transforming the joint probability density function of two pixels. Then, a table of pixel-similarity threshold, as a function of the SAR image look number and neighboring reflectivity ratio, is trained according to the minimum error probability. Finally, the pixel-similarity threshold is applied to select similar pixels from the searching window for the real reflectivity estimation. The proposed approach was verified by synthetic and real SAR images, and was compared with the PPB and LHRS-PRM filters. The visual quality and the quantification comparison show that the proposed approach is excellent not only in the reconstruction of the uniform area, the character of edges, texture, and details, but also with the lower computation complexity.

  2. SAF for Windows

    DEFF Research Database (Denmark)

    Hansen, Timme

    2001-01-01

    SAF for Windows er et computerprogram til parametrisk konstruktion af translationsskaller. Skaloverfladernes tredimensionelle, facetterede form fremkommer ved en kombination af to todimensionelle formbestemmende kurver, som kan vælges og redigeres af brugeren. Programmet kan udfolde de genererede...

  3. ??????????? ? ???????????? ?????? ?????????????? ??????????????? ?? ?????? ?? Windows 2000, Freebsd, Linux.

    OpenAIRE

    ??????, ?. ?.; ?????, ?. ?.

    2006-01-01

    ??????????????? ????????????? ??????????? ??????????????? ? ???????? ??????????????? ?? ?????? ????????? ?? ? ?????????? ???????????? ????????? ? ???????????????? ????????????????? ??????????? ????????????. ?? ?????? ???????????? ????? ?????????????? ?????? ??????????????? ?? ?????? ?? Windows 2000, FreeBSD ?? Linux. The most popular alternative to commercial routers is the construction of routers on the basis of PCs, network operational systems and specialized routing software. In this artic...

  4. Tungsten based catalysts for selective deoxygenation

    NARCIS (Netherlands)

    Gosselink, R.W.; Stellwagen, D.R.; Bitter, J.H.

    2013-01-01

    Over the past decades, impending oil shortages combined with petroleum market instability have prompted a search for a new source of both transportation fuels and bulk chemicals. Renewable bio-based feedstocks such as sugars, grains, and seeds are assumed to be capable of contributing to a significa

  5. Delineating the conformal window

    DEFF Research Database (Denmark)

    Frandsen, Mads Toudal; Pickup, Thomas; Teper, Michael

    2011-01-01

    We identify and characterise the conformal window in gauge theories relevant for beyond the standard model building, e.g. Technicolour, using the criteria of metric confinement and causal analytic couplings, which are known to be consistent with the phase diagram of supersymmetric QCD from Seiberg...... duality. Using these criteria we find perturbation theory to be consistent throughout the predicted conformal window for several of these gauge theories and we discuss recent lattice results in the light of our findings....

  6. ARTIFICIAL NEURAL NETWORKS BASED GEARS MATERIAL SELECTION HYBRID INTELLIGENT SYSTEM

    Institute of Scientific and Technical Information of China (English)

    X.C. Li; W.X. Zhu; G. Chen; D.S. Mei; J. Zhang; K.M. Chen

    2003-01-01

    An artificial neural networks(ANNs) based gear material selection hybrid intelligent system is established by analyzing the individual advantages and weakness of expert system (ES) and ANNs and the applications in material select of them. The system mainly consists of tow parts: ES and ANNs. By being trained with much data samples,the back propagation (BP) ANN gets the knowledge of gear materials selection, and is able to inference according to user input. The system realizes the complementing of ANNs and ES. Using this system, engineers without materials selection experience can conveniently deal with gear materials selection.

  7. Selecting supplier combination based on fuzzy multicriteria analysis

    Science.gov (United States)

    Han, Zhi-Qiu; Luo, Xin-Xing; Chen, Xiao-Hong; Yang, Wu-E.

    2015-07-01

    Existing multicriteria analysis (MCA) methods are probably ineffective in selecting a supplier combination. Thus, an MCA-based fuzzy 0-1 programming method is introduced. The programming relates to a simple MCA matrix that is used to select a single supplier. By solving the programming, the most feasible combination of suppliers is selected. Importantly, this result differs from selecting suppliers one by one according to a single-selection order, which is used to rank sole suppliers in existing MCA methods. An example highlights such difference and illustrates the proposed method.

  8. Clonal Selection Based Memetic Algorithm for Job Shop Scheduling Problems

    Institute of Scientific and Technical Information of China (English)

    Jin-hui Yang; Liang Sun; Heow Pueh Lee; Yun Qian; Yan-chun Liang

    2008-01-01

    A clonal selection based memetic algorithm is proposed for solving job shop scheduling problems in this paper. In the proposed algorithm, the clonal selection and the local search mechanism are designed to enhance exploration and exploitation. In the clonal selection mechanism, clonal selection, hypermutation and receptor edit theories are presented to construct an evolutionary searching mechanism which is used for exploration. In the local search mechanism, a simulated annealing local search algorithm based on Nowicki and Smutnicki's neighborhood is presented to exploit local optima. The proposed algorithm is examined using some well-known benchmark problems. Numerical results validate the effectiveness of the proposed algorithm.

  9. ETHICAL HACKING IN WINDOWS ENVIRONMENT

    OpenAIRE

    Navpreet Kaur; Dr. Jaswinder Singh

    2016-01-01

    This paper, shows by demonstration with System Penetration, how to reveal security holes by using some tools like ‘Cain and Abel’ and ‘Wireshark’ and carrying out the attacks such as cracking password, performing man in the middle attacks, sniffing user traffic etc. The tests were performed by establishing the virtual lab. The objective of the paper was to demonstrate how easily one’s system can be hacked by revealing various security holes in windows-based syste...

  10. 一种基于窗口切片的单模式匹配算法%A Signal Pattern Matching Algorithm Based on Slicing Windows

    Institute of Scientific and Technical Information of China (English)

    曾传璜; 段智宏

    2011-01-01

    An improved string matching algorithm is put forward based on the analysis of Sunday algorithm in the article.This algorithm slices the text string by using windows, which makes the pattern's maximum account of shit-right from m+1 to 2m+1.Experiments show that this algorithm can reduce the number of matching sharply and improves its performance effectively.%在分析Sunday算法的基础上,提出了一个改进的串匹配算法.该算法利用窗口对文本串进行切片,使模式串的最大右移量从m+1增至2m+1.实验表明,该算法有效地减少了匹配次数,提高了算法的性能.

  11. Low-noise solar-blind photodetectors based on LaAlO3 single crystal with transparent indium-tin-oxide electrode as detection window.

    Science.gov (United States)

    Guo, Er-Jia; Lu, Hui-Bin; He, Meng; Jin, Kui-Juan; Yang, Guo-Zhen

    2010-10-10

    The low-noise solar-blind photodetectors of indium-tin-oxide/LaAlO(3)/Ag (ITO/LAO/Ag) have been fabricated based on the properties of LAO bandgap excitation and the transparent conductance of ITO thin film. The ITO thin films are epitaxially grown on LAO wafers as the electrodes and detection windows of the photodetectors. The photodetectors have low noise and excellent electromagnetic shielding. The influence of the thickness of ITO thin films on the responsivity of the photodetectors has been studied. The photocurrent responsivity can reach 10.3 mA/W under the irradiation of 200-220 nm for a photodetector with 5 nm thick ITO film. The noise current is 1 pA order magnitude under the sunlight at midday. The experiment results suggest that ITO/LAO/Ag is one of the promising structures for the solar-blind deep-ultraviolet photodetectors. PMID:20935715

  12. Information Gain Based Dimensionality Selection for Classifying Text Documents

    Energy Technology Data Exchange (ETDEWEB)

    Dumidu Wijayasekara; Milos Manic; Miles McQueen

    2013-06-01

    Selecting the optimal dimensions for various knowledge extraction applications is an essential component of data mining. Dimensionality selection techniques are utilized in classification applications to increase the classification accuracy and reduce the computational complexity. In text classification, where the dimensionality of the dataset is extremely high, dimensionality selection is even more important. This paper presents a novel, genetic algorithm based methodology, for dimensionality selection in text mining applications that utilizes information gain. The presented methodology uses information gain of each dimension to change the mutation probability of chromosomes dynamically. Since the information gain is calculated a priori, the computational complexity is not affected. The presented method was tested on a specific text classification problem and compared with conventional genetic algorithm based dimensionality selection. The results show an improvement of 3% in the true positives and 1.6% in the true negatives over conventional dimensionality selection methods.

  13. Design and implementation of personal Windows firewall based on SPI%基于SPI的个人Windows防火墙设计与实现

    Institute of Scientific and Technical Information of China (English)

    蔡增玉; 陈志豪; 刘书如; 甘勇

    2011-01-01

    In view of the problem that the current platform based on the Windows personal firewall can not control according to the application program and lack of business firewall contrast, one kind personal Windows firewall based on the SPI was proposed. The firewall uses Winsock2 SPI programming technology, the system module adopts the dynamic link library, global variable interface and interface functions, and realizes data monitoring,log management,management rules and system monitoring and other functions. The experimental results showed that the firewall had good performance and achieved the basic function of the personal firewall. It can guarantee the network safety of personal computer.%针对目前基于Windows平台的个人防火墙不能较好地根据应用程序进行控制且缺少与商用防火墙对比等问题,提出了一种基于SPI的Windows个人防火墙.该防火墙采用Winsock2 SPI编程技术,系统模块间使用动态链接库、全局变量接口和函数接口,从而较好地实现了数据监视、日志管理、管理规则和系统监视等功能.实验结果表明,该防火墙具有良好的性能,实现了个人防火墙的基本技术指标,能够保护个人计算机的网络安全.

  14. Variable selection in model-based discriminant analysis

    OpenAIRE

    Maugis, Cathy; Celeux, Gilles; Martin-Magniette, Marie-Laure

    2010-01-01

    A general methodology for selecting predictors for Gaussian generative classification models is presented. The problem is regarded as a model selection problem. Three different roles for each possible predictor are considered: a variable can be a relevant classification predictor or not, and the irrelevant classification variables can be linearly dependent on a part of the relevant predictors or independent variables. This variable selection model was inspired by the model-based clustering mo...

  15. A Rule-Based Industrial Boiler Selection System

    Science.gov (United States)

    Tan, C. F.; Khalil, S. N.; Karjanto, J.; Tee, B. T.; Wahidin, L. S.; Chen, W.; Rauterberg, G. W. M.; Sivarao, S.; Lim, T. L.

    2015-09-01

    Boiler is a device used for generating the steam for power generation, process use or heating, and hot water for heating purposes. Steam boiler consists of the containing vessel and convection heating surfaces only, whereas a steam generator covers the whole unit, encompassing water wall tubes, super heaters, air heaters and economizers. The selection of the boiler is very important to the industry for conducting the operation system successfully. The selection criteria are based on rule based expert system and multi-criteria weighted average method. The developed system consists of Knowledge Acquisition Module, Boiler Selection Module, User Interface Module and Help Module. The system capable of selecting the suitable boiler based on criteria weighted. The main benefits from using the system is to reduce the complexity in the decision making for selecting the most appropriate boiler to palm oil process plant.

  16. Comparison of potentials between genotype-based selection and genotypic value-based selection of quantitative traits

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    According to the difference of selection criteria, methods of marker-assisted selection (MAS) of quantitative traits can be divided into genotype-based selection (GS) and genotypic value-based selection (GVS). By means of computer simulation, potentials of the two methods were compared. Results showed that the two methods had similar basic laws and their efficiencies were not significantly different except that GS behaved better in the case where the number of QTLs was large and QTL effects were equal. From the application point of view, combination of GS and GVS should be the development direction of MAS research in the future.

  17. AIN-Based Action Selection Mechanism for Soccer Robot Systems

    Directory of Open Access Journals (Sweden)

    Yin-Tien Wang

    2009-01-01

    Full Text Available Role and action selections are two major procedures of the game strategy for multiple robots playing the soccer game. In role-select procedure, a formation is planned for the soccer team, and a role is assigned to each individual robot. In action-select procedure, each robot executes an action provided by an action selection mechanism to fulfill its role playing. The role-select procedure was often designed efficiently by using the geometry approach. However, the action-select procedure developed based on geometry approach will become a very complex task. In this paper, a novel action-select algorithm for soccer robots is proposed by using the concepts of artificial immune network (AIN. This AIN-based action-select provides an efficient and robust algorithm for robot role selection. Meanwhile, a reinforcement learning mechanism is applied in the proposed algorithm to enhance the response of the adaptive immune system. Simulation and experiment are carried out to verify the proposed AIN-based algorithm, and the results show that the proposed algorithm provides an efficient and applicable algorithm for mobile robots to play soccer game.

  18. 基于Windows CE的手机信号测试系统的设计和实现%Design and Implementation of A Mobile Telephone Signal Tester Based on Windows CE

    Institute of Scientific and Technical Information of China (English)

    王范

    2005-01-01

    介绍了一种手机信号测试系统,它由掌上电脑、GPS接收机、测试手机三部分组成 ,软件部分用EVC 4.0基于Windows CE开发.通用于车载和室内两种不同范围的测试模式, 可同时测试多个项目并将测试结果在背景地图上直观显示出来.

  19. Research and Design of Virtual Wavelet Noise Eliminator Based on Lab Windows/CVI Technology%基于Lab Windows/CVI技术虚拟小波消噪仪的设计与实现

    Institute of Scientific and Technical Information of China (English)

    杨中华; 杨国付

    2010-01-01

    基于MATLAB的强大科学计算功能,研究了其与Lab windows/CVI接口技术,并利用该技术对测试系统采集到的数据进行小波分析处理.在实验室采用信号发生器模拟外部现场信号对所设计的测试系统进行测试,证明该系统能够较得到预期的效果.

  20. Optimal Route Selection Method Based on Vague Sets

    Institute of Scientific and Technical Information of China (English)

    GUO Rui; DU Li min; WANG Chun

    2015-01-01

    Optimal route selection is an important function of vehicle trac flow guidance system. Its core is to determine the index weight for measuring the route merits and to determine the evaluation method for selecting route. In this paper, subjective weighting method which relies on driver preference is used to determine the weight and the paper proposes the multi-criteria weighted decision method based on vague sets for selecting the optimal route. Examples show that, the usage of vague sets to describe route index value can provide more decision-making information for route selection.

  1. Alternative Window Schemes for CuInSe2-Based Solar Cells Final Report: 3 November 1995-December 1997; FINAL

    International Nuclear Information System (INIS)

    This work demonstrated high-efficiency CIGS cells based on highly resistive ZnO buffer layers grown by MOCVD. One cell based on NREL CIGS and a ZnO buffer layer exhibited an active-area efficiency of nearly 14%. This result is one of the best efficiencies reported for a ''direct'' ZnO/CIGS cell made with a vacuum process

  2. Windows 8.1 bible

    CERN Document Server

    Boyce, Jim; Tidrow, Rob

    2014-01-01

    Windows 8.1 coverage that goes above and beyond all competitors? Serving as an evolutionary update to Windows 8, Windows 8.1 provides critical changes to parts of Windows 8, such as greater customization of the interface and boot operations, return of a 'start button' that reveals apps, greater integration between the two interfaces, and updates to apps. Weighing in at nearly 1000 pages, Windows 8.1 Bible provides deeper Windows insight than any other book on the market. It's valuable for both professionals needing a guide to the nooks and crannies of Windows and regular users wanting a wide

  3. CBFS: high performance feature selection algorithm based on feature clearness.

    Directory of Open Access Journals (Sweden)

    Minseok Seo

    Full Text Available BACKGROUND: The goal of feature selection is to select useful features and simultaneously exclude garbage features from a given dataset for classification purposes. This is expected to bring reduction of processing time and improvement of classification accuracy. METHODOLOGY: In this study, we devised a new feature selection algorithm (CBFS based on clearness of features. Feature clearness expresses separability among classes in a feature. Highly clear features contribute towards obtaining high classification accuracy. CScore is a measure to score clearness of each feature and is based on clustered samples to centroid of classes in a feature. We also suggest combining CBFS and other algorithms to improve classification accuracy. CONCLUSIONS/SIGNIFICANCE: From the experiment we confirm that CBFS is more excellent than up-to-date feature selection algorithms including FeaLect. CBFS can be applied to microarray gene selection, text categorization, and image classification.

  4. Microsoft Windows Security Essentials

    CERN Document Server

    Gibson, Darril

    2011-01-01

    Windows security concepts and technologies for IT beginners IT security can be a complex topic, especially for those new to the field of IT. This full-color book, with a focus on the Microsoft Technology Associate (MTA) program, offers a clear and easy-to-understand approach to Windows security risks and attacks for newcomers to the world of IT. By paring down to just the essentials, beginners gain a solid foundation of security concepts upon which more advanced topics and technologies can be built. This straightforward guide begins each chapter by laying out a list of topics to be discussed,

  5. Windows Azure Platform

    CERN Document Server

    Redkar, Tejaswi

    2010-01-01

    The Azure Services Platform is a brand-new cloud-computing technology from Microsoft. It is composed of four core components-Windows Azure, .NET Services, SQL Services, and Live Services-each with a unique role in the functioning of your cloud service. It is the goal of this book to show you how to use these components, both separately and together, to build flawless cloud services. At its heart Windows Azure Platform is a down-to-earth, code-centric book. This book aims to show you precisely how the components are employed and to demonstrate the techniques and best practices you need to know

  6. Microsoft Windows networking essentials

    CERN Document Server

    Gibson, Darril

    2011-01-01

    The core concepts and technologies of Windows networking Networking can be a complex topic, especially for those new to the field of IT. This focused, full-color book takes a unique approach to teaching Windows networking to beginners by stripping down a network to its bare basics, thereby making each topic clear and easy to understand. Focusing on the new Microsoft Technology Associate (MTA) program, this book pares down to just the essentials, showing beginners how to gain a solid foundation for understanding networking concepts upon which more advanced topics and technologies can be built.

  7. A Measurement Framework for Knowledge-Based Economy (KBE) Efficiency in ASEAN: A Data Envelopment (DEA) Window Approach

    OpenAIRE

    Munshi Naser Ibne Afzal; Roger Lawrey

    2012-01-01

    The objective of this paper is to assess the relative efficiencies of ASEAN-5 countries in their development ofknowledge-based economies (KBEs) during the period 2005-2010. The KBE concept was first used by theOrganization for Economic Co-operation and Development (OECD) describing it as an economy which isdirectly based on the production, distribution and use of knowledge and information. Subsequently, the AsiaPacific Economic Cooperation forum (APEC) and the World Bank Institute (WBI), alon...

  8. Alternative Window Schemes for CuInSe2-Based Solar Cells Final Report: 3 November 1995-December 1997

    Energy Technology Data Exchange (ETDEWEB)

    Olsen, L.C. (Electronic Materials Laboratory: Washington State University at Tri-Cities)

    1998-10-26

    This work demonstrated high-efficiency CIGS cells based on highly resistive ZnO buffer layers grown by MOCVD. One cell based on NREL CIGS and a ZnO buffer layer exhibited an active-area efficiency of nearly 14%. This result is one of the best efficiencies reported for a ''direct'' ZnO/CIGS cell made with a vacuum process.

  9. A Method of Determining Selectivity Coefficients Based on the Practical Slope of Ion Selective Electrodes

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    It is a problem to be solved that the experimental selectivity coefficients of ion selective electrodes (ISEs) depend on the activity.This paper studied the new method of determining selectivity coefficients.A mixed ion response equation,which was similar to Nicolsky-Eisenman (N-E) equation recommended by IUPAC,was proposed.The equation includes the practical response slope of ISEs to the primary ion and the interfering ion.The selectivity coefficient was defined by the equation instead of the N-E equation.The experimental part of the method is similar to that based on the N-E equation.The values of selectivity coefficients obtained with this method do not depend on the activity whether the electrodes exhibit the Nernst response or non-Nernst response.The feasibility of the new method is illustrated experimentally.

  10. AN INTRODUCTION TO WINDOWS 2000 AT CERN

    CERN Multimedia

    2001-01-01

    A demonstration of the new supported Windows environment for all the CERN personal computers (PC) will be given which is based on Windows 2000. This presentation will assume little or no familiarity with the PC, or NICE, and will concentrate on the services being offered to the users of PCs at CERN. How NICE 2000 can facilitate the work of all users, eventually becoming the key access point to all activities in the laboratory will be demonstrated. Date Title Language Location Speaker Fri 1/6 10:00 Une introduction à Windows 2000 au CERN F IT Auditorium (31/3-004) Alberto Pace Tue 5/6 10:00 Une introduction à Windows 2000 au CERN F LHC Auditorium (30/7th floor) Frederic Hemmer Tue 5/6 14:00 Une introduction à Windows 2000 au CERN F SL Auditorium (864/1s floor) Michel Bornand Tue 5/6 14:00 An introduction to Windows 2000 at CERN E IT Auditorium (31/3-004) Andreas Wagner Wed 6/6 14:00 Une introduction à Windows 2000 au CERN F SL ...

  11. AN ASSESSMENT OF MCNP WEIGHT WINDOWS

    Energy Technology Data Exchange (ETDEWEB)

    J. S. HENDRICKS; C. N. CULBERTSON

    2000-01-01

    The weight window variance reduction method in the general-purpose Monte Carlo N-Particle radiation transport code MCNPTM has recently been rewritten. In particular, it is now possible to generate weight window importance functions on a superimposed mesh, eliminating the need to subdivide geometries for variance reduction purposes. Our assessment addresses the following questions: (1) Does the new MCNP4C treatment utilize weight windows as well as the former MCNP4B treatment? (2) Does the new MCNP4C weight window generator generate importance functions as well as MCNP4B? (3) How do superimposed mesh weight windows compare to cell-based weight windows? (4) What are the shortcomings of the new MCNP4C weight window generator? Our assessment was carried out with five neutron and photon shielding problems chosen for their demanding variance reduction requirements. The problems were an oil well logging problem, the Oak Ridge fusion shielding benchmark problem, a photon skyshine problem, an air-over-ground problem, and a sample problem for variance reduction.

  12. 抗生素联合应用对细菌耐药突变选择窗影响的研究进展%Research Progress in Influence of Combined Antibiotics on Mutant Selection Window of Bacterium

    Institute of Scientific and Technical Information of China (English)

    邵世峰

    2012-01-01

    Using antibiotics is one of the main causes of bacterial antimicrobial resistance. Mutant selection window( MSW )theory provides the theoretical support for formulating antibiotics application strategy and decreasing antimicrobial resistance. When antimicrobial concentration is between minimum inhibitory concentration and mutant prevention concentration, that is inside MSW,mutant fractions of bacterial populations are selectively enriched. Antimicrobial combination is a strategy to decrease mutant prevention concentration and restrict the MSW to decrease the incidence of the drug resistance.%抗生素的使用是造成细菌耐药的主要原因之一.细菌耐药突变选择窗(MSW)理论为制订抗生素临床用药策略,减少细菌耐药提供了理论基础.当细菌处于抗生素对该菌的最低抑菌浓度和防突变浓度之间时,也就是耐药MSW之中时,耐药突变菌株会被选择性富集.抗生素联合应用使抗生素对细菌的防突变浓度降低,MSW缩窄,是减少耐药发生的一种抗生素用药策略.

  13. Isotope selective ionization of Zinc-67 based on the polarization selection rule

    International Nuclear Information System (INIS)

    An isotope selective ionization of 67Zn based on the polarization selection rule is demonstrated. Two parallel polarized pulsed lasers are provided in a counter propagation configuration to excite the ground state 67Zn isotope to the 4s5d 3D1 state via the 4s4p 3P1 state. The highly-excited 67Zn is ionized by a strong infrared laser pulse to the continuum. The isotope selectivity in this configuration is measured. In addition, the ionization cross-section from the 4s5d 3D1 state is reported for the first time.

  14. Holographic window for solar power generation

    Science.gov (United States)

    Kasezawa, Toshihiro; Horimai, Hideyoshi; Tabuchi, Hiroshi; Shimura, Tsutomu

    2016-08-01

    A new photovoltaic generation unit based on the application of holographic technologies called a Holo-Window is proposed in this work. The basic principle and the optical configuration used for the basic experimental unit are described. Suitable fabrication technology for a hologram with the broadband spectrum required to provide the appropriate sunlight capture capability is then discussed. Finally, a laboratory-prototype Holo-Window unit was developed and its performance was evaluated.

  15. 基于STC89C51单片机的智能窗户启闭器%STC89C51 based Microcontroller Smart Windows Open and Close Control

    Institute of Scientific and Technical Information of China (English)

    吴雪松; 潘崇煜; 牛轶峰

    2015-01-01

    为了保证良好的居家环境,实现普通窗户的智能控制,设计了基于STC89C51的智能窗户启闭器。该启闭器通过感知窗户内、外侧的移动目标来控制窗户启闭,有效防止小孩爬出窗户以及小偷翻窗入室;同时,启闭器通过感知室内、外温度,湿度和空气质量适时开、关窗,具备环境自适应功能。该启闭器在现有窗户基础上安装即可使用,拆卸方便、价格低廉,具有良好的市场前景。%In order to ensure a good home environment, intelligent control of ordinary windows, a design based on STC89C51 smart windows open and close control. The perception inside through the windows open and close, moving target outside the windows open and close to control, prevent children climbing out of windows, and the thief Fanchuang burglary; at the same time, opening and closing through the perception of indoor and outdoor temperature, humidity and air quality, timely open, closing a window, with the environment adaptive function. The hoist is mounted on the basis of the existing windows to use, easy to disassemble, low price, with good market prospects.

  16. Comparison of the corporation tax base in selected OECD countries

    OpenAIRE

    Černá, Daniela

    2009-01-01

    The subject of this thesis is "Comparison of the corporation tax base in selected OECD countries". The main objective is comparison of corporation tax base legislation and its impact on the tax burden of corporations in Czech Republic, Austria and Cyprus. Sub-objectives are: analyzing the elements of corporation tax base in these countries, finding out how the asset depreciation is regulated in these countries and assess the impact of corporation tax base legislation on effective tax burden. ...

  17. Research on Assistant Location System Based on Windows Mobile and Bluetooth GPS%基于Windows Mobile与蓝牙GPS的辅助定位系统研究

    Institute of Scientific and Technical Information of China (English)

    朱冬海

    2008-01-01

    本文在分析导航型GPS输出数据格式的基础上,研究了智能手机与GPS之间的蓝牙数据链以及GPS坐标系到测量坐标系的转换方法,并在此基础上进行了基于windows Mobile的应用程序开发.实践证明,采用这种方法定位精度可以达到6~7米,能应用于测量控制点的辅助定位及其他非高精度定位的专业领域.

  18. Seeds in the Window, Soil in the Sensory Table: Science Education through Gardening and Nature-Based Play

    Science.gov (United States)

    Hachey, Alyse C.; Butler, Deanna L.

    2009-01-01

    A growing body of evidence indicates that contact with nature is as important to children as good nutrition and adequate sleep, and therefore, educators need to address children's access to nature. This is particularly important in urban areas, where children have few opportunities to interact with nature. Gardening and nature-based curriculum…

  19. 基于LabWindows/CVI的手机写号工具的设计与实现%Design and realization of mobile phone number writing tools based on LabWindows/CVI

    Institute of Scientific and Technical Information of China (English)

    李婷婷; 张仁杰

    2012-01-01

    In order to solve the problems of existing mobile phone number writing tools such as many steps, low work efficiency and so on, a method to combine the function of writing International Mobile Equipment Identity (IMEI) and Bluetooth address of Feature Phone in meta mode was raised. This method was programmed with C language, debugged and operated in the environment of LabWindows/CVI. It can realize to write IMEI and bluetooth address to mobile phone though choosing function one time and entering Meta mode one time. To compared with operating the two functions separately, the proposed method simplifies the operation, reduces the operation time, therefore improves the working efficiency.%为了解决现有的手机写号工具在使用中操作步骤多、工作效率低等问题,提出了为Feature Phone在Meta 模式下写移动电话识别码( IMEI)和写蓝牙地址号的功能进行合并的方法,用C语言进行编码,在LabWindow/CVI开发环境下调试运行,最终可以通过一次选择功能的操作,进一次Meta,实现了对手机写移动电话识别码(IMEI)和蓝牙地址号的功能.结果表明这种方法与以前将这两项功能分开操作相比,简化了操作步骤,缩短了操作时间,有效地提高了工作效率.

  20. A method for selecting training samples based on camera response

    Science.gov (United States)

    Zhang, Leihong; Li, Bei; Pan, Zilan; Liang, Dong; Kang, Yi; Zhang, Dawei; Ma, Xiuhua

    2016-09-01

    In the process of spectral reflectance reconstruction, sample selection plays an important role in the accuracy of the constructed model and in reconstruction effects. In this paper, a method for training sample selection based on camera response is proposed. It has been proved that the camera response value has a close correlation with the spectral reflectance. Consequently, in this paper we adopt the technique of drawing a sphere in camera response value space to select the training samples which have a higher correlation with the test samples. In addition, the Wiener estimation method is used to reconstruct the spectral reflectance. Finally, we find that the method of sample selection based on camera response value has the smallest color difference and root mean square error after reconstruction compared to the method using the full set of Munsell color charts, the Mohammadi training sample selection method, and the stratified sampling method. Moreover, the goodness of fit coefficient of this method is also the highest among the four sample selection methods. Taking all the factors mentioned above into consideration, the method of training sample selection based on camera response value enhances the reconstruction accuracy from both the colorimetric and spectral perspectives.

  1. "Stained Glass" Landscape Windows

    Science.gov (United States)

    Vannata, Janine

    2008-01-01

    Both adults and children alike marvel at the grand vivid stained-glass windows created by American artist Louis Comfort Tiffany. Today he is commonly recognized as one of America's most influential designers and artists throughout the last nineteenth and early twentieth century. In the lesson described in this article, students created their own…

  2. Simple cryogenic infrared window

    NARCIS (Netherlands)

    Hartemink, M.; Godfried, H.P.

    1991-01-01

    A simple, cheap technique is reported that allows materials with both large and small thermal expansion coefficients to be mounted as windows in low temperature cryostats while at the same time avoiding thermal stresses. The construction may be thermally cycled many times with no change in its prope

  3. Windows and lighting program

    Energy Technology Data Exchange (ETDEWEB)

    1990-06-01

    More than 30% of all energy use in buildings is attributable to two sources: windows and lighting. Together they account for annual consumer energy expenditures of more than $50 billion. Each affects not only energy use by other major building systems, but also comfort and productivity -- factors that influence building economics far more than does direct energy consumption alone. Windows play a unique role in the building envelope, physically separating the conditioned space from the world outside without sacrificing vital visual contact. Throughout the indoor environment, lighting systems facilitate a variety of tasks associated with a wide range of visual requirements while defining the luminous qualities of the indoor environment. Windows and lighting are thus essential components of any comprehensive building science program. Despite important achievements in reducing building energy consumption over the past decade, significant additional savings are still possible. These will come from two complementary strategies: (1) improve building designs so that they effectively apply existing technologies and extend the market penetration of these technologies; and (2) develop advanced technologies that increase the savings potential of each application. Both the Windows and Daylighting Group and the Lighting System Research Group have made substantial contributions in each of these areas, and continue to do so through the ongoing research summarized here. 23 refs., 16 figs.

  4. Secure Web Service for a Windows Phone Application

    OpenAIRE

    Cu The, Hai

    2016-01-01

    The purpose of this study is to learn the concepts, algorithms and techniques of cryptography and how to apply them to the web service related to Windows Phone applications. The method is to study the mechanism of the cryptographic algorithms and selecting the suitable techniques for Windows Phone – Azure in a Windows ecosystem. The best practices and popular algorithms are investigated in detail to offer the benefits and drawbacks when applying them to the ecosystem. In the case study, ...

  5. Application of case-based reasoning for machining parameters selection

    Science.gov (United States)

    Grabowik, C.; Kalinowski, K.; Krenczyk, D.; Paprocka, I.; Kempa, W.

    2016-08-01

    Process planning, as one of the most important stage of the technological production preparation, consists in selection of manufacturing operations taking into account the minimal manufacturing cost. The minimal manufacturing cost could be achieved by selection of the best sequence of manufacturing operations, machine tools, manufacturing tools, and accompanying machining parameters selection. On the other hand, it is almost impossible, especially in industrial conditions, to design an optimal process plan, first of all due to restrictions imposed by the installed in the factory machine park. Taking into consideration above, machining parameter selection seems to be one of the potential areas of optimization. In manual process planning process engineers select machining parameters using selection rules and data stored in manuals and tool catalogues. It makes this process time and labour consuming and non-error free. On the other hand, in workshop practice, machine operators select parameters having their skills and habits in mind. It could be a reason for suboptimal process planning. Considering this, new methods of machining parameters selection free of human factor influence are still sought. In our approach, we propose to apply case-based reasoning for machining parameter selection. In the paper, a detailed description of our approach is presented.

  6. Nucleotide kinase-based selection system for genetic switches.

    Science.gov (United States)

    Ike, Kohei; Umeno, Daisuke

    2014-01-01

    Ever-increasing repertories of RNA-based switching devices are enabling synthetic biologists to construct compact, self-standing, and easy-to-integrate regulatory circuits. However, it is rather rare that the existing RNA-based expression controllers happen to have the exact specification needed for particular applications from the beginning. Evolutionary design of is powerful strategy for quickly tuning functions/specification of genetic switches. Presented here are the steps required for rapid and efficient enrichment of genetic switches with desired specification using recently developed nucleoside kinase-based dual selection system. Here, the library of genetic switches, created by randomizing either the part or the entire sequence coding switching components, is subjected to OFF (negative) selection and ON (positive) selection in various conditions. The entire selection process is completed only by liquid handling, facilitating the parallel and continuous operations of multiple selection projects. This automation-liable platform for genetic selection of functional switches has potential applications for development of RNA-based biosensors, expression controllers, and their integrated forms (genetic circuits). PMID:24549617

  7. Feature Selection for Neural Network Based Stock Prediction

    Science.gov (United States)

    Sugunnasil, Prompong; Somhom, Samerkae

    We propose a new methodology of feature selection for stock movement prediction. The methodology is based upon finding those features which minimize the correlation relation function. We first produce all the combination of feature and evaluate each of them by using our evaluate function. We search through the generated set with hill climbing approach. The self-organizing map based stock prediction model is utilized as the prediction method. We conduct the experiment on data sets of the Microsoft Corporation, General Electric Co. and Ford Motor Co. The results show that our feature selection method can improve the efficiency of the neural network based stock prediction.

  8. Research on Dual Resource Constrained Job Shop Scheduling Based on Time Window%基于时窗的双资源约束车间调度研究

    Institute of Scientific and Technical Information of China (English)

    李兢尧; 孙树栋; 黄媛; 牛刚刚

    2011-01-01

    针对复杂制造环境下双资源约束作业车间调度问题,提出基于时窗调度策略的继承式遗传算法.该算法基于时窗交集充分利用数控设备加工时工人的时窗空隙;以信息素为载体传承父辈染色体种群的进化经验,并采用基于流量的改进伪随机比例转移规则和自适应云调整参数,生成分支种群;仿照动物的种群组织模式提出多种群King交叉进化模式,并针对双资源约束特点引入资源进化算子;基于被支配域的概念提出扇形分割的轮盘赌选择算子,以较小的计算复杂度选择非劣解集和较优个体.在采用马尔科夫链知识对整个算法的全局收敛性进行理论分析后,通过对随机算例仿真运算结果的统计分析,表明该算法虽然解分布均匀程度不甚理想,但算法搜索性能和收敛性较优.%An inherited genetic algorithm based on time window scheduling is proposed to solve the dual resource constrained job shop scheduling problem with complex manufacturing environment. This algorithm makes full use of the time window of workers during the process of numerical control machines based on the intersection of time windows to actualize positive scheduling. Then the evolutionary experience of parent chromosomes is inherited with pheromone as carrier and the branch population is generated with improved pseudo-random probability transfer rule and adaptive adjusting parameters based on cloud theory. The King crossover operator is proposed on the basis of imitating animal population organization mode and some resource evolutionary operators are introduced in response to the features of dual resource constrained. At last, an efficient roulette selection operator with sector partition is used to select Pareto-optimal solutions and better chromosomes. After the theoretical analysis of the global convergence via Markov chain, the statistical analysis on the simulation results of random benchmarks shows that this

  9. Bismuth Modified Carbon-Based Electrodes for the Determination of Selected Neonicotinoid Insecticides

    Directory of Open Access Journals (Sweden)

    Marko Rodić

    2011-05-01

    Full Text Available Two types of bismuth modified electrodes, a bismuth-film modified glassy carbon (BiF-GCE and a bismuth bulk modified carbon paste, were applied for the determination of selected nitroguanidine neonicotinoid insecticides. The method based on an ex situ prepared BiF-GCE operated in the differential pulse voltammetric (DPV mode was applied to determine clothianidin in the concentration range from 2.5 to 23 μg cm−3 with a relative standard deviation (RSD not exceeding 1.5%. The tricresyl phosphate-based carbon paste electrodes (TCP-CPEs, bulk modified with 5 and 20 w/w% of bismuth, showed a different analytical performance in the determination of imidacloprid, regarding the peak shape, potential window, and noise level. The TCP-CPE with 5% Bi was advantageous, and the developed DPV method based on it allowed the determination in the concentration range from 1.7 to 60 μg cm−3 with an RSD of 2.4%. To get a deeper insight into the morphology of the bismuth-based sensor surfaces, scanning electron microscopic measurements were performed of both the surface film and the bulk modified electrodes.

  10. Development of high power windows for ECH(and)CD launchers

    International Nuclear Information System (INIS)

    Electron Cyclotron Heating and Current Drive (ECH(and)CD) systems are a major part of nuclear fusion technology as localised and steerable deposition of high power mm-waves contributes essentially to plasma start-up, plasma heating, shaping of current profiles, and plasma stabilisation. At ITER, the first tritium confinement in the mm-wave launchers will be formed by CVD diamond windows. Based on large area CVD diamond disks and their unparalleled combination of ultralow mm-wave absorption and outstanding thermal conductivity, the window design for front steering (FS) and remote steering (RS) launchers was worked out for a transmission capability of 2 MW at the fixed frequency of 170 GHz. In addition, a torus window was designed for a step-tuneable Electron Cyclotron wave system for ASDEX Upgrade for transmission of up to 1 MW mm-wave power at 4 selected frequencies between 105 - 140 GHz. The designs for the torus windows for the three different launcher concepts account for the specific transmission requirements. For single-frequency operation, a single disk configuration was established. The disk thickness is adapted to provide sufficient safety margin towards pressure rise in the vacuum vessel (0.2 MPa) for the required window aperture. For the RS launcher, the remote steering unit placed in the back-end of the launcher requires a large window aperture (95 mm) to avoid beam vignetting at the extreme steering angles of ±12 o. For the FS launcher with the steering mechanism placed in the front shield of the launcher, the disk size is reduced as the window aperture can be identical to the waveguide inner diameter (63.5 mm). This allows to consider indirect cooling instead of edge cooling and thus to eliminate the risk of tritium contact to the cooling water in case of crack formation in the diamond disk. For the multi-frequency torus window at ASDEX-Upgrade a double disk configuration with the disk separation of 5 mm, fine tuneable over ± 1 mm, is realised. The

  11. RESEARCH ON NEGOTIATION-BASED PARTNER SELECTION APPROACH

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The key problem in the construction of virtual enterprises (VEs) is how to select appropriate partners. The negotiation-based approach is proposed to support partner selection in the construction of VEs . The negotiation model is discussed from three main aspects respectively, i.e., negotiation protocol, negotiation goal and negotiation decision-making model. And the generic mathematical description of the negotiation model is formally presented. Finally, a simple example is used to validate the approach's availability.

  12. DSR-Based Selective Repeat ARQ Protocol in MANET

    Institute of Scientific and Technical Information of China (English)

    张全新; 宋瀚涛

    2003-01-01

    The efficient route algorithms involved in mobile ad hoc network(MANET) are studied. An arrangement of a combination of the traditional dynamic source routing(DSR) protocol is put forward and the selective repeat ARQ protocol is put forward by analyzing and studying them in detail and providing the scheme. In networks, especially in wireless networks, the nodes are capable to process data much faster than transmission, the DSR-based selective repeat ARQ protocol has real meanings in MANET.

  13. Rule Based Selection of 2D Urban Area Map Objects

    OpenAIRE

    Jagdish Lal Raheja; Umesh Kumar

    2010-01-01

    The purpose of cartographic generalization is to represent a particular situation adapted to the needs of its users, with adequate legibility of the representation and perceptional congruity with the real situation. In this paper, a simple approach is presented for the selection process of building ground plans that are represented as 2D line, square and polygon segments. It is based on simple selection process from the field of computer graphics. It is important to preserve the overall chara...

  14. Research on the Safety of Online Judge System Based on Windows%基于Windows的在线判题系统的安全性研究

    Institute of Scientific and Technical Information of China (English)

    李定才; 瞿绍军; 胡争; 段兵; 成幸毅; 唐强

    2011-01-01

    在线判题系统(0J)是ACM/ICPC竞赛选手用来进行程序设计练习和比赛的平台,现有OJ在遇到恶意提交代码方面经常造成服务器故障、崩溃或硬盘阻塞等安全威胁.为参加ACM/ICPC竞赛选手提供安全、可靠和高性能的OJ平台,在保证安全性的同时又不影响使用性.论文从源码级控制、应用程序级控制与防止恶意提交方面作了深入研究,提出基于sandbox(Windows沙箱)、ACL(访问控制列表)、完美哈希和帐号保密等技术的安全体系结构,通过在Windows下搭建OJ平台验证了采用此体系结构的OJ彻底解决了前面的安全问题.OJ安全可靠,性能优良.%Online Judge (OJ) system is the platform for ACM / ICPC programming players, the existing Ojs now meet the server trouble, service stop,bard disk choice and other security threats because of malicious submits. To provide safe, reliable and high performance OJ platform for ACM / ICPC programming players,ensure both the safety and the usability at the same time. Study from source-level control , application-level control and preventing malicious submits, put forward measures that based on sandbox (Windows sandbox), ACL (Access Control List), the perfect Hash .account security and other technical that formed security technical architecture,by practicing this architecture based on Windows,this architecture can solve all problems above,and was verified safe,reliable,and with good performance.

  15. Room Temperature Co-Precipitation Synthesis of Magnetite Nanoparticles in a Large pH Window with Different Bases

    Directory of Open Access Journals (Sweden)

    Maria Cristina Mascolo

    2013-11-01

    Full Text Available Magnetite nanoparticles (Fe3O4 represent the most promising materials in medical applications. To favor high-drug or enzyme loading on the nanoparticles, they are incorporated into mesoporous materials to form a hybrid support with the consequent reduction of magnetization saturation. The direct synthesis of mesoporous structures appears to be of interest. To this end, magnetite nanoparticles have been synthesized using a one pot co-precipitation reaction at room temperature in the presence of different bases, such as NaOH, KOH or (C2H54NOH. Magnetite shows characteristics of superparamagnetism at room temperature and a saturation magnetization (Ms value depending on both the crystal size and the degree of agglomeration of individual nanoparticles. Such agglomeration appears to be responsible for the formation of mesoporous structures, which are affected by the pH, the nature of alkali, the slow or fast addition of alkaline solution and the drying modality of synthesized powders.

  16. Improved SNR of MST RADAR Signals by Cosine Hyperbolic Window over Kaiser Window

    Directory of Open Access Journals (Sweden)

    Prof. B. Ramesh Reddy Dr. A. Subbarami Reddy Dr. P. Chandrashekar Reddy

    2012-02-01

    Full Text Available In this paper, the effect of window shape parameter “” in Cosine Hyperbolic Window Function on the SNR values of MST RADAR returns has been investigated. Six sets of multibeam observations of the lower atmosphere made by the Indian Mesosphere-Stratosphere-Troposphere (MST RADAR are used for the result analysis. Prior to the Fourier Transformation, the in-phase and quadrature components of the RADAR echo samples are weighted with the recently proposed new class of adjustable window based on the Cosine Hyperbolic Window Function. The effects of data weighting with the variation of the window shape parameter “” of the Cosine Hyperbolic Window Function is presented. It is observed that the increase of “” increases the SNR values and a good improvement is reported. Optimum value of the shape parameter “” for the Cosine Hyperbolic Window Function is suggested to analyze the MST RADAR signals. The results also shows that, the improvement of SNR of noisy data due to the effect of side lobe reduction and demands for the design of optimal windows.

  17. Predicting domain-domain interaction based on domain profiles with feature selection and support vector machines

    Directory of Open Access Journals (Sweden)

    Liao Li

    2010-10-01

    Full Text Available Abstract Background Protein-protein interaction (PPI plays essential roles in cellular functions. The cost, time and other limitations associated with the current experimental methods have motivated the development of computational methods for predicting PPIs. As protein interactions generally occur via domains instead of the whole molecules, predicting domain-domain interaction (DDI is an important step toward PPI prediction. Computational methods developed so far have utilized information from various sources at different levels, from primary sequences, to molecular structures, to evolutionary profiles. Results In this paper, we propose a computational method to predict DDI using support vector machines (SVMs, based on domains represented as interaction profile hidden Markov models (ipHMM where interacting residues in domains are explicitly modeled according to the three dimensional structural information available at the Protein Data Bank (PDB. Features about the domains are extracted first as the Fisher scores derived from the ipHMM and then selected using singular value decomposition (SVD. Domain pairs are represented by concatenating their selected feature vectors, and classified by a support vector machine trained on these feature vectors. The method is tested by leave-one-out cross validation experiments with a set of interacting protein pairs adopted from the 3DID database. The prediction accuracy has shown significant improvement as compared to InterPreTS (Interaction Prediction through Tertiary Structure, an existing method for PPI prediction that also uses the sequences and complexes of known 3D structure. Conclusions We show that domain-domain interaction prediction can be significantly enhanced by exploiting information inherent in the domain profiles via feature selection based on Fisher scores, singular value decomposition and supervised learning based on support vector machines. Datasets and source code are freely available on

  18. Windows CE自定制Shell%Customizing Windows CE Shell

    Institute of Scientific and Technical Information of China (English)

    覃朗; 雷跃明

    2010-01-01

    Shell是用户访问操作系统的接口.Shell开发在Windows CE操作系统开发中占据一定的重要性.对Windows CE Shell进行了概述,并通过建立Shell模型,讲述如何自定制Windows CE Shell和定制Shell必须注意的问题,对Windows CE Shell的定制进行深入研究.

  19. 基于Lab Windows/CVI的锂离子电池内阻测试系统设计%Design of impedance test system of lithium ion battery based on Lab Windows/CVI

    Institute of Scientific and Technical Information of China (English)

    杨权; 周厚强; 徐晓东; 张永强

    2012-01-01

    设计出了一套基于虚拟仪器的锂离子电池内阻测试系统,采用直流内阻谱和交流内阻谱法进行了测试,更加全面地反应了锂离子电池内阻情况.通过RS232通讯协议控制程控电源和电子负载,使其满足测试条件,同时用USB数据采集器实时将原始数据采集,得出测试结果.设计中运用了Lab Windows/CVI开发环境,由于其提供了丰富的接口函数,使得软件开发周期大大缩短.%electric vehicles; Li-ion battery; equalization; charge; flyback converter; degree of disequilibrium; pseudo-equilibrium; constant voltage control; constant current control

  20. Performance-Based Technology Selection Filter description report

    International Nuclear Information System (INIS)

    A formal methodology has been developed for identifying technology gaps and assessing innovative or postulated technologies for inclusion in proposed Buried Waste Integrated Demonstration (BWID) remediation systems. Called the Performance-Based Technology Selection Filter, the methodology provides a formalized selection process where technologies and systems are rated and assessments made based on performance measures, and regulatory and technical requirements. The results are auditable, and can be validated with field data. This analysis methodology will be applied to the remedial action of transuranic contaminated waste pits and trenches buried at the Idaho National Engineering Laboratory (INEL)

  1. Process window metrology

    Science.gov (United States)

    Ausschnitt, Christopher P.; Chu, William; Hadel, Linda M.; Ho, Hok; Talvi, Peter

    2000-06-01

    This paper is the third of a series that defines a new approach to in-line lithography control. The first paper described the use of optically measurable line-shortening targets to enhance signal-to-noise and reduce measurement time. The second described the dual-tone optical critical dimension (OCD) measurement and analysis necessary to distinguish dose and defocus. Here we describe the marriage of dual-tone OCD to SEM-CD metrology that comprises what we call 'process window metrology' (PWM), the means to locate each measured site in dose and focus space relative to the allowed process window. PWM provides in-line process tracking and control essential to the successful implementation of low-k lithography.

  2. Local Stereo Matching Based on Information Entropy of Image

    Science.gov (United States)

    Geng, Yingnan

    2016-09-01

    Adaptive support-window algorithm is one of the simplest local algorithms for stereo matching. An important problem for adaptive support-window algorithm is to determine the appropriate support-window size, which is always hard to do and limits the validity of adaptive support-window algorithm. An appropriate support-window size must be selected adaptively based on image features. In this paper, information entropy of image is defined for stereo matching in the RGB vector space. Based on adaptive support-window, a new support-window selection algorithm, which uses information entropy of image to quantify image features such as illumination color and number of object contained in an image, is proposed. Experimental results evaluated on the Middlebury stereo benchmark show that our algorithm outperforms the conventional adaptive support-window algorithms.

  3. Target Window Reliability

    Energy Technology Data Exchange (ETDEWEB)

    Woloshun, Keith Albert [Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

    2016-02-11

    The target window design implemented and tested in experiments at ANL have performed without failure for the available beam of 6 mm FWHM on a 12 mm diameter target. However, scaling that design to a 25 mm diameter target size for a 12 mm FWHM beam has proven problematic. Combined thermal and mechanical (pressure induced) stresses and strains are too high to maintain the small coolant gaps and provide adequate fatigue lifetime.

  4. SeaBuoySoft – an On-line Automated Windows based Ocean Wave height Data Acquisition and Analysis System for Coastal Field’s Data Collection

    Directory of Open Access Journals (Sweden)

    P.H.Tarudkar

    2014-12-01

    Full Text Available Measurement of various hydraulic parameters such as wave heights for the research and the practical purpose in the coastal fields is one of the critical and challenging but equally important criteria in the field of ocean engineering for the design and the development of hydraulic structures such as construction of sea walls, break waters, oil jetties, fisheries harbors, all other structures, and the ships maneuvering, embankments, berthing on jetties. This paper elucidates the development of “SeaBuoySoft online software system for coastal field‟s wave height data collection” for the coastal application work. The system could be installed along with the associated hardware such as a Digital Waverider Receiver unit and a Waverider Buoy at the shore. The ocean wave height data, transmitted by wave rider buoy installed in the shallow/offshore waters of sea is received by the digital waverider receiver unit and it is interfaced to the SeaBuoySoft software. The design and development of the software system has been worked out in-house at Central Water and Power Research Station, Pune, India. The software has been developed as a Windows based standalone version and is unique of its kind for the reception of real time ocean wave height data, it takes care of its local storage of wave height data for its further analysis work as and when required. The system acquires real time ocean wave height data round the clock requiring no operator intervention during data acquisition process on site.

  5. Smart window coating based on F-TiO2-KxWO3 nanocomposites with heat shielding, ultraviolet isolating, hydrophilic and photocatalytic performance

    Science.gov (United States)

    Liu, Tongyao; Liu, Bin; Wang, Jing; Yang, Linfen; Ma, Xinlong; Li, Hao; Zhang, Yihong; Yin, Shu; Sato, Tsugio; Sekino, Tohru; Wang, Yuhua

    2016-06-01

    A series of smart window coated multifunctional NIR shielding-photocatalytic films were fabricated successfully through KxWO3 and F-TiO2 in a low-cost and environmentally friendly process. Based on the synergistic effect of KxWO3 and F-TiO2, the optimal proportion of KxWO3 to F-TiO2 was investigated and the FT/2KWO nanocomposite film exhibited strong near-infrared, ultraviolet light shielding ability, good visible light transmittance, high photocatalytic activity and excellent hydrophilic capacity. This film exhibited better thermal insulation capacity than ITO and higher photocatalytic activity than P25. Meanwhile, the excellent stability of this film was examined by the cycle photocatalytic degradation and thermal insulation experiments. Overall, this work is expected to provide a possibility in integrating KxWO3 with F-TiO2, so as to obtain a multifunctional NIR shielding-photocatalytic nanocomposite film in helping solve the energy crisis and deteriorating environmental issues.

  6. Adaptive Route Selection Policy Based on Back Propagation Neural Networks

    Directory of Open Access Journals (Sweden)

    Fang Jing

    2008-03-01

    Full Text Available One of the key issues in the study of multiple route protocols in mobile ad hoc networks (MANETs is how to select routes to the packet transmission destination. There are currently two route selection methods: primary routing policy and load-balancing policy. Many ad hoc routing protocols are based on primary (fastest or shortest but busiest routing policy from the self-standpoint of traffic transmission optimization of each node. Load-balancing protocols equalize transmission load among multiple routes in the network. However, the lack of global perspective can cause congestion in primary policy and prolong delay time in load-balancing policy. So, although they are sometimes efficient, these two types of policies cannot adapt to intricately changing network conditions. We propose a new multiple route protocol with an Adaptive route selection Policy based on a Back propagation Neural network (APBN to optimize selection policy. In our study, we used a gradient ascent algorithm to determine the relationship between different optimum route selection polices and varying conditions in the communication network and to make a neural network that learns this relationship using the Back Propagation (BP algorithm to predict the next optimum route selection policy. We evaluated our protocol using Omnet simulator. The results show that the proposed scheme performs better than current protocols.

  7. Filter selection based on light source for multispectral imaging

    Science.gov (United States)

    Xu, Peng; Xu, Haisong

    2016-07-01

    In multispectral imaging, it is necessary to select a reduced number of filters to balance the imaging efficiency and spectral reflectance recovery accuracy. Due to the combined effect of filters and light source on reflectance recovery, the optimal filters are influenced by the employed light source in the multispectral imaging system. By casting the filter selection as an optimization issue, the selection of optimal filters corresponding to the employed light source proceeds with respect to a set of target samples utilizing one kind of genetic algorithms, regardless of the detailed spectral characteristics of the light source, filters, and sensor. Under three light sources with distinct spectral power distributions, the proposed filter selection method was evaluated on a filter-wheel based multispectral device with a set of interference filters. It was verified that the filters derived by the proposed method achieve better spectral and colorimetric accuracy of reflectance recovery than the conventional one under different light sources.

  8. AN INTRODUCTION TO WINDOWS 2000 AT CERN

    CERN Multimedia

    2001-01-01

    A demonstration of the new supported Windows environment for all the CERN personal computers (PC) will be given which is based on Windows 2000. This presentation will assume little or no familiarity with the PC, or NICE, and will concentrate on the services being offered to the users of PCs at CERN. How NICE 2000 can facilitate the work of all users, eventually becoming the key access point to all activities in the laboratory will be demonstrated. Information: http://winservices.web.cern.ch/winservices/Seminars/Tutorials/ Date Title Language Location Speaker Fri 1/6 10:00 Une introduction à Windows 2000 au CERN F IT Auditorium (31/3-004) Alberto Pace Tue 5/6 10:00 Une introduction à Windows 2000 au CERN F LHC Auditorium (30/7th floor) Frederic Hemmer Tue 5/6 14:00 Une introduction à Windows 2000 au CERN F SL Auditorium (864/1s floor) Michel Bornand Tue 5/6 14:00 An introduction to Windows 2000 at CERN E IT Auditorium (31/3-004) Andreas Wagner ...

  9. Near-Infrared Selective Plasmonic Electrochromic Windows

    OpenAIRE

    Garcia, Guillermo

    2012-01-01

    Residential and commercial buildings represent a prime opportunity to improve energy efficiency and sustainability worldwide. Currently, lighting and thermal management within buildings account for 20% of the United State's yearly energy consumption. Several approaches, such as solid state lighting, energy efficient HVAC systems, and improved insulation, are currently being investigated to help mitigate building energy consumption. The work described in this dissertation focuses on studying t...

  10. Understanding and Supporting Window Switching

    NARCIS (Netherlands)

    Tak, S.

    2011-01-01

    Switching between windows on a computer is a frequent activity, but finding and switching to the target window can be inefficient. This thesis aims to better un-derstand and support window switching. It explores two issues: (1) the lack of knowledge of how people currently interact with and switch b

  11. Attribute based selection of thermoplastic resin for vacuum infusion process

    DEFF Research Database (Denmark)

    Prabhakaran, R.T. Durai; Lystrup, Aage; Løgstrup Andersen, Tom

    2011-01-01

    The composite industry looks toward a new material system (resins) based on thermoplastic polymers for the vacuum infusion process, similar to the infusion process using thermosetting polymers. A large number of thermoplastics are available in the market with a variety of properties suitable...... for different engineering applications, and few of those are available in a not yet polymerised form suitable for resin infusion. The proper selection of a new resin system among these thermoplastic polymers is a concern for manufactures in the current scenario and a special mathematical tool would...... be beneficial. In this paper, the authors introduce a new decision making tool for resin selection based on significant attributes. This article provides a broad overview of suitable thermoplastic material systems for vacuum infusion process available in today’s market. An illustrative example—resin selection...

  12. Feature selection with neighborhood entropy-based cooperative game theory.

    Science.gov (United States)

    Zeng, Kai; She, Kun; Niu, Xinzheng

    2014-01-01

    Feature selection plays an important role in machine learning and data mining. In recent years, various feature measurements have been proposed to select significant features from high-dimensional datasets. However, most traditional feature selection methods will ignore some features which have strong classification ability as a group but are weak as individuals. To deal with this problem, we redefine the redundancy, interdependence, and independence of features by using neighborhood entropy. Then the neighborhood entropy-based feature contribution is proposed under the framework of cooperative game. The evaluative criteria of features can be formalized as the product of contribution and other classical feature measures. Finally, the proposed method is tested on several UCI datasets. The results show that neighborhood entropy-based cooperative game theory model (NECGT) yield better performance than classical ones.

  13. Feature Selection with Neighborhood Entropy-Based Cooperative Game Theory

    Directory of Open Access Journals (Sweden)

    Kai Zeng

    2014-01-01

    Full Text Available Feature selection plays an important role in machine learning and data mining. In recent years, various feature measurements have been proposed to select significant features from high-dimensional datasets. However, most traditional feature selection methods will ignore some features which have strong classification ability as a group but are weak as individuals. To deal with this problem, we redefine the redundancy, interdependence, and independence of features by using neighborhood entropy. Then the neighborhood entropy-based feature contribution is proposed under the framework of cooperative game. The evaluative criteria of features can be formalized as the product of contribution and other classical feature measures. Finally, the proposed method is tested on several UCI datasets. The results show that neighborhood entropy-based cooperative game theory model (NECGT yield better performance than classical ones.

  14. Spin-selected focusing and imaging based on metasurface lens.

    Science.gov (United States)

    Wang, Sen; Wang, Xinke; Kan, Qiang; Ye, Jiasheng; Feng, Shengfei; Sun, Wenfeng; Han, Peng; Qu, Shiliang; Zhang, Yan

    2015-10-01

    Spin of light provides a route to control photons. Spin-based optical devices which can manipulate photons with different spin states are imperative. Here we experimentally demonstrated a spin-selected metasurface lens based on the spin-orbit interaction originated from the Pancharatnam-Berry (PB) phase. The optimized PB phase enables the light with different spin states to be focused on two separated points in the preset plane. Furthermore, the metasurface lens can perform the spin-selected imaging according to the polarization of the illuminating light. Such a spin-based device capacitates a lot of advanced applications for spin-controlled photonics in quantum information processing and communication based on the spin and orbit angular momentum. PMID:26480156

  15. Automatic Peak Selection by a Benjamini-Hochberg-Based Algorithm

    KAUST Repository

    Abbas, Ahmed

    2013-01-07

    A common issue in bioinformatics is that computational methods often generate a large number of predictions sorted according to certain confidence scores. A key problem is then determining how many predictions must be selected to include most of the true predictions while maintaining reasonably high precision. In nuclear magnetic resonance (NMR)-based protein structure determination, for instance, computational peak picking methods are becoming more and more common, although expert-knowledge remains the method of choice to determine how many peaks among thousands of candidate peaks should be taken into consideration to capture the true peaks. Here, we propose a Benjamini-Hochberg (B-H)-based approach that automatically selects the number of peaks. We formulate the peak selection problem as a multiple testing problem. Given a candidate peak list sorted by either volumes or intensities, we first convert the peaks into p-values and then apply the B-H-based algorithm to automatically select the number of peaks. The proposed approach is tested on the state-of-the-art peak picking methods, including WaVPeak [1] and PICKY [2]. Compared with the traditional fixed number-based approach, our approach returns significantly more true peaks. For instance, by combining WaVPeak or PICKY with the proposed method, the missing peak rates are on average reduced by 20% and 26%, respectively, in a benchmark set of 32 spectra extracted from eight proteins. The consensus of the B-H-selected peaks from both WaVPeak and PICKY achieves 88% recall and 83% precision, which significantly outperforms each individual method and the consensus method without using the B-H algorithm. The proposed method can be used as a standard procedure for any peak picking method and straightforwardly applied to some other prediction selection problems in bioinformatics. The source code, documentation and example data of the proposed method is available at http://sfb.kaust.edu.sa/pages/software.aspx. © 2013

  16. Automatic learning-based beam angle selection for thoracic IMRT

    International Nuclear Information System (INIS)

    Purpose: The treatment of thoracic cancer using external beam radiation requires an optimal selection of the radiation beam directions to ensure effective coverage of the target volume and to avoid unnecessary treatment of normal healthy tissues. Intensity modulated radiation therapy (IMRT) planning is a lengthy process, which requires the planner to iterate between choosing beam angles, specifying dose–volume objectives and executing IMRT optimization. In thorax treatment planning, where there are no class solutions for beam placement, beam angle selection is performed manually, based on the planner’s clinical experience. The purpose of this work is to propose and study a computationally efficient framework that utilizes machine learning to automatically select treatment beam angles. Such a framework may be helpful for reducing the overall planning workload. Methods: The authors introduce an automated beam selection method, based on learning the relationships between beam angles and anatomical features. Using a large set of clinically approved IMRT plans, a random forest regression algorithm is trained to map a multitude of anatomical features into an individual beam score. An optimization scheme is then built to select and adjust the beam angles, considering the learned interbeam dependencies. The validity and quality of the automatically selected beams evaluated using the manually selected beams from the corresponding clinical plans as the ground truth. Results: The analysis included 149 clinically approved thoracic IMRT plans. For a randomly selected test subset of 27 plans, IMRT plans were generated using automatically selected beams and compared to the clinical plans. The comparison of the predicted and the clinical beam angles demonstrated a good average correspondence between the two (angular distance 16.8° ± 10°, correlation 0.75 ± 0.2). The dose distributions of the semiautomatic and clinical plans were equivalent in terms of primary target volume

  17. Automatic learning-based beam angle selection for thoracic IMRT

    Energy Technology Data Exchange (ETDEWEB)

    Amit, Guy; Marshall, Andrea [Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario M5G 2M9 (Canada); Purdie, Thomas G., E-mail: tom.purdie@rmp.uhn.ca; Jaffray, David A. [Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario M5G 2M9 (Canada); Department of Radiation Oncology, University of Toronto, Toronto, Ontario M5S 3E2 (Canada); Techna Institute, University Health Network, Toronto, Ontario M5G 1P5 (Canada); Levinshtein, Alex [Department of Computer Science, University of Toronto, Toronto, Ontario M5S 3G4 (Canada); Hope, Andrew J.; Lindsay, Patricia [Radiation Medicine Program, Princess Margaret Cancer Centre, Toronto, Ontario M5G 2M9, Canada and Department of Radiation Oncology, University of Toronto, Toronto, Ontario M5S 3E2 (Canada); Pekar, Vladimir [Philips Healthcare, Markham, Ontario L6C 2S3 (Canada)

    2015-04-15

    Purpose: The treatment of thoracic cancer using external beam radiation requires an optimal selection of the radiation beam directions to ensure effective coverage of the target volume and to avoid unnecessary treatment of normal healthy tissues. Intensity modulated radiation therapy (IMRT) planning is a lengthy process, which requires the planner to iterate between choosing beam angles, specifying dose–volume objectives and executing IMRT optimization. In thorax treatment planning, where there are no class solutions for beam placement, beam angle selection is performed manually, based on the planner’s clinical experience. The purpose of this work is to propose and study a computationally efficient framework that utilizes machine learning to automatically select treatment beam angles. Such a framework may be helpful for reducing the overall planning workload. Methods: The authors introduce an automated beam selection method, based on learning the relationships between beam angles and anatomical features. Using a large set of clinically approved IMRT plans, a random forest regression algorithm is trained to map a multitude of anatomical features into an individual beam score. An optimization scheme is then built to select and adjust the beam angles, considering the learned interbeam dependencies. The validity and quality of the automatically selected beams evaluated using the manually selected beams from the corresponding clinical plans as the ground truth. Results: The analysis included 149 clinically approved thoracic IMRT plans. For a randomly selected test subset of 27 plans, IMRT plans were generated using automatically selected beams and compared to the clinical plans. The comparison of the predicted and the clinical beam angles demonstrated a good average correspondence between the two (angular distance 16.8° ± 10°, correlation 0.75 ± 0.2). The dose distributions of the semiautomatic and clinical plans were equivalent in terms of primary target volume

  18. Phosphine-Based Z‑Selective Ruthenium Olefin Metathesis Catalysts

    OpenAIRE

    Smit, Wietse; Koudriavtsev, Vitali; Occhipinti, Giovanni; Törnroos, Karl Wilhelm; Jensen, Vidar Remi

    2016-01-01

    Whereas a number of highly Z-selective ruthenium-based olefin metathesis catalysts bearing N-heterocyclic carbene ligands have been reported in recent years, Zselectivity has so far been difficult to achieve for phosphinebased catalysts. Guided by predictive density functional theory (DFT) calculations, we have developed phosphine-based ruthenium olefin metathesis catalysts giving 70−95% of the Zisomer product in homocoupling of terminal alkenes such as allylbenzene, 1...

  19. Classification and Target Group Selection Based Upon Frequent Patterns

    NARCIS (Netherlands)

    W.H.L.M. Pijls (Wim); R. Potharst (Rob)

    2000-01-01

    textabstractIn this technical report , two new algorithms based upon frequent patterns are proposed. One algorithm is a classification method. The other one is an algorithm for target group selection. In both algorithms, first of all, the collection of frequent patterns in the training set is constr

  20. Study on Equipment Selective Maintenance Strategy Based on Performance

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    In this paper, an equipment selective maintenance strategy based on performance is brought forward according to the situation in China, in which reliability, computer technology,condition monitoring and management theory is applied. The theory points of the strategy are put forward. The maintenance strategy has been applied in.mine hoist system.

  1. Robot soccer action selection based on Q learning

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    This paper researches robot soccer action selection based on Q learning . The robot learn to activate particular behavior given their current situation and reward signal. We adopt neural network to implementations of Q learning for their generalization properties and limited computer memory requirements

  2. Correlation Analysis on Multidimensional Data Streams Based on Base-Windows%基于基窗口的多维数据流相关性分析算法

    Institute of Scientific and Technical Information of China (English)

    钱江波; 王志杰; 陈华辉; 董一鸿; 谢志军; 王永利

    2012-01-01

    Multidimensional data stream analysis is seldom studied, even the minor contribution is mainly from the analytical works on a single sliding window model. An on-line correlation analysis algorithm called Base_win_CCA algorithm is presented, which significantly reduces space and time complexity by performing simultaneous correlation analysis on multidimensional data streams. Technically, the algorithm achieves the correlation of multiple windows in a flexible and accurate way by dynamically maintaining statistics data. Theoretical analysis and experimental results indicate that the proposed algorithm is remarkable in performance when the window is larger with sufficient data streams and users.%多维数据流相关性分析的研究较少,且主要集中在单一滑动窗口分析.文中提出一种基于基窗口的在线典型相关分析算法(Base_win_CCA).算法动态维护基窗口的统计量用于多维相关性分析,时空复杂度大为减少,并且可根据多用户并发请求获取多个窗口范围的相关性,较灵活,运算结果精确.理论分析和实验结果表明算法在基窗口越大,相关性查询窗口越大,数据流条数越多,查询用户越多的情况下能体现出优越的性能.

  3. Comparison of windowing effects on elastography images: Simulation, phantom and in vivo studies.

    Science.gov (United States)

    Ahmed, Rifat; Arfin, Rishad; Rubel, Monir Hossan; Islam, Kazi Khairul; Jia, Congxian; Metaxas, Dimitris; Garra, Brian S; Alam, S Kaisar

    2016-03-01

    In this paper, we have evaluated the use of smooth windows for ultrasound elastography. In ultrasound elastography, local tissue strain is estimated using operations such as cross-correlation on local segments of RF data. In this process, local data segments are selected by multiplying the RF data by a rectangular window. Such data truncation causes non-ideal spectral behavior, which can be mitigated by using smooth windows. Accordingly, we hypothesize that the use of smooth windows may improve the elastographic signal-to-noise ratio (SNRe) and contrast-to-noise ratio (CNRe) of strain images. The effects of using smooth windows have not been fully characterized for time-domain strain estimators. Thus, we have compared the elastographic performance of rectangular, Hanning, Gaussian, and Chebyshev windows used in conjunction with cross-correlation based algorithm and adaptive stretching algorithm using finite element method (FEM) simulation, experimental phantom, and in vivo data. Smooth windows are found to improve the SNRe by up to 3.94 for FEM data and by up to 1.76 for phantom data which represent 76% and 60.52% improvements, respectively. CNRe improves by up to 12.23 for FEM simulated data and by up to 4.28 for phantom data which represent 213.07% and 248.2% improvements, respectively. Mean structural similarity (MSSIM) was used for assessing the image perceptual quality and smooth windows improved it by up to 0.22 (85.98% improvement) for simulated data. We have evaluated these parameters at 1-6% applied strains for the experimental phantom and at 1%, 2%, 4%, 6%, 8%, and 12% applied strains for FEM simulation. We observed a maximum deterioration in axial resolution of 0.375 mm (which is on the order of the wavelength, 0.3mm) due to smooth windows. "Salt-and-pepper" noise from false-peak errors has also been reduced. Smooth windows increased the lesion-to-background contrast (by increasing the CNRe by 213.07%) of a low contrast lesion (10-dB). For the in vivo

  4. SELECTION OF CHILDREN FOR RUNNING BASED ON FUNCTIONAL INDICATORS

    Directory of Open Access Journals (Sweden)

    Ilona Mihajlović

    2010-06-01

    Full Text Available Selection includes designed, directed and unified process of assessment and establishing, as well as selection, extraction, election, identification and classification based on certain qualities and quantities. This research was done in order to implement the selection of children properly and successfully and to help selecting children for successful engagement in the running events of aerobic-anaerobic type, which makes the problem of this research. The aim of the research is to determine the impact of functional abilities on the performance of children in the 600m running, and to use certain parameters in the selection of children. The research sample consisted of 83 seventh grade students of an elementary school in Novi Sad, aged 13-14. By the modifications of Bergman Harvard step test and spirometry five predictor variables were obtained and their influence on the result of the 600m running was established. A high system correlation of predictor variables and criterion variables at the level of p = .00. is obtained by regression analysis, which means that these tests can be used for selection of children for running aerobic-anaerobic type with a high probability of good predictions.

  5. Materialized View Selection Approach Using Tree Based Methodology

    Directory of Open Access Journals (Sweden)

    MR. P. P. KARDE

    2010-10-01

    Full Text Available In large databases particularly in distributed database, query response time plays an important role as timely access to information and it is the basic requirement of successful business application. A data warehouse uses multiple materialized views to efficiently process a given set of queries. Quick response time and accuracy areimportant factors in the success of any database. The materialization of all views is not possible because of the space constraint and maintenance cost constraint. Selection of Materialized views is one of the most important decisions in designing a data warehouse for optimal efficiency. Selecting a suitable set of views that minimizesthe total cost associated with the materialized views and is the key component in data warehousing. Materialized views are found to be very useful for fast query processing. This paper gives the results of proposed tree based materialized view selection algorithm for query processing. In distributed environment where database is distributed over the nodes on which query should get executed and also plays an important role. This paper also proposes node selection algorithm for fast materialized view selection in distributed environment. And finally it is found that the proposed methodology performs better for query processing as compared to other materializedview selection strategies.

  6. Windows Home Server users guide

    CERN Document Server

    Edney, Andrew

    2008-01-01

    Windows Home Server brings the idea of centralized storage, backup and computer management out of the enterprise and into the home. Windows Home Server is built for people with multiple computers at home and helps to synchronize them, keep them updated, stream media between them, and back them up centrally. Built on a similar foundation as the Microsoft server operating products, it's essentially Small Business Server for the home.This book details how to install, configure, and use Windows Home Server and explains how to connect to and manage different clients such as Windows XP, Windows Vist

  7. Teach yourself visually Windows 10

    CERN Document Server

    McFedries, Paul

    2015-01-01

    Learn Windows 10 visually with step-by-step instructions Teach Yourself VISUALLY Windows 10 is the visual learner's guide to the latest Windows upgrade. Completely updated to cover all the latest features, this book walks you step-by-step through over 150 essential Windows tasks. Using full color screen shots and clear instruction, you'll learn your way around the interface, set up user accounts, play media files, download photos from your camera, go online, set up email, and much more. You'll even learn how to customize Windows 10 to suit the way you work best, troubleshoot and repair common

  8. Beginner's guide to Windows 7

    CERN Document Server

    Holden, Susan

    2011-01-01

    This concise, accessible and down-to-earth guide will help you get the most out of your computer using Windows 7, whether you're a complete beginner or upgrading from previous Microsoft operating systems. You'll learn about exciting new features of Windows 7, including how to work with Windows 7 Libraries, how to communicate using Windows Live Mail, how to use Windows Live Photo Gallery, how to browse and search the web using Internet Explorer, and Version 8 and Accelerators.

  9. WEB SERVICE SELECTION ALGORITHM BASED ON PRINCIPAL COMPONENT ANALYSIS

    Institute of Scientific and Technical Information of China (English)

    Kang Guosheng; Liu Jianxun; Tang Mingdong; Cao Buqing

    2013-01-01

    Existing Web service selection approaches usually assume that preferences of users have been provided in a quantitative form by users.However,due to the subjectivity and vagueness of preferences,it may be impractical for users to specify quantitative and exact preferences.Moreover,due to that Quality of Service (QoS) attributes are often interrelated,existing Web service selection approaches which employ weighted summation of QoS attribute values to compute the overall QoS of Web services may produce inaccurate results,since they do not take correlations among QoS attributes into account.To resolve these problems,a Web service selection framework considering user's preference priority is proposed,which incorporates a searching mechanism with QoS range setting to identify services satisfying the user's QoS constraints.With the identified service candidates,based on the idea of Principal Component Analysis (PCA),an algorithm of Web service selection named PCAoWSS (Web Service Selection based on PCA) is proposed,which can eliminate the correlations among QoS attributes and compute the overall QoS of Web services accurately.After computing the overall QoS for each service,the algorithm ranks the Web service candidates based on their overall QoS and recommends services with top QoS values to users.Finally,the effectiveness and feasibility of our approach are validated by experiments,i.e.the selected Web service by our approach is given high average evaluation than other ones by users and the time cost of PCA-WSS algorithm is not affected acutely by the number of service candidates.

  10. High Dimensional Data Clustering Using Fast Cluster Based Feature Selection

    Directory of Open Access Journals (Sweden)

    Karthikeyan.P

    2014-03-01

    Full Text Available Feature selection involves identifying a subset of the most useful features that produces compatible results as the original entire set of features. A feature selection algorithm may be evaluated from both the efficiency and effectiveness points of view. While the efficiency concerns the time required to find a subset of features, the effectiveness is related to the quality of the subset of features. Based on these criteria, a fast clustering-based feature selection algorithm (FAST is proposed and experimentally evaluated in this paper. The FAST algorithm works in two steps. In the first step, features are divided into clusters by using graph-theoretic clustering methods. In the second step, the most representative feature that is strongly related to target classes is selected from each cluster to form a subset of features. Features in different clusters are relatively independent; the clustering-based strategy of FAST has a high probability of producing a subset of useful and independent features. To ensure the efficiency of FAST, we adopt the efficient minimum-spanning tree (MST using the Kruskal‟s Algorithm clustering method. The efficiency and effectiveness of the FAST algorithm are evaluated through an empirical study. Index Terms—

  11. Transmit antenna selection based on shadowing side information

    KAUST Repository

    Yilmaz, Ferkan

    2011-05-01

    In this paper, we propose a new transmit antenna selection scheme based on shadowing side information. In the proposed scheme, single transmit antenna which has the highest shadowing coefficient is selected. By the proposed technique, usage of the feedback channel and channel estimation complexity at the receiver can be reduced. We consider independent but not identically distributed Generalized-K composite fading model, which is a general composite fading & shadowing channel model for wireless environments. Exact closed-form outage probability, moment generating function and symbol error probability expressions are derived. In addition, theoretical performance results are validated by Monte Carlo simulations. © 2011 IEEE.

  12. Selective detector of cosmic particles based on diamond sensitive elements

    Science.gov (United States)

    Altukhov, A. A.; Zaharchenko, K. V.; Kolyubin, V. A.; Lvov, S. A.; Nedosekin, P. G.; Tyurin, E. M.; Ibragimov, R. F.; Kadilin, V. V.; Nikolaev, I. V.

    2016-02-01

    The article describes the device for selective registration of electrons, protons and heavy ions fluxes from the solar and galactic cosmic rays in the twelve energy ranges, built on a base of diamond detector. The use of the diamond detectors allowed for the creation a device for registration of cosmic particles fluxes at the external spacecraft surface with the resource not less than 20 years. Selective detector is aimed for continuous monitoring of radiation situation on board the spacecrafts, in order to predict the residual life of their work and prompt measures to actively protect the spacecraft when the flow of cosmic particles is sharply increased.

  13. Linear feature selection in texture analysis - A PLS based method

    DEFF Research Database (Denmark)

    Marques, Joselene; Igel, Christian; Lillholm, Martin;

    2013-01-01

    , which first applied a PLS regression to rank the features and then defined the best number of features to retain in the model by an iterative learning phase. The outliers in the dataset, that could inflate the number of selected features, were eliminated by a pre-processing step. To cope...... and considering all CV groups, the methods selected 36 % of the original features available. The diagnosis evaluation reached a generalization area-under-the-ROC curve of 0.92, which was higher than established cartilage-based markers known to relate to OA diagnosis....

  14. Improved Windows for Cold Climates

    DEFF Research Database (Denmark)

    Laustsen, Jacob Birck; Svendsen, Svend

    2005-01-01

    A large part of the energy consumption in countries in Nordic and Arctic climates is used for space heating in buildings. In typical buildings the windows are responsible for a con-siderable part of the heat losses. Therefore there is a large potential for energy savings by developing and using...... windows with improved energy performance. Traditionally evaluation of the energy performance of windows has focused on the thermal transmittance, but as windows differ from the rest of the building envelope by allowing solar energy to enter the building, the total solar energy transmittance is equally...... of the heating demand in typical single-family houses in Denmark and Greenland. The examined windows are typical new windows from Nordic countries and new proposals of improved windows with low thermal transmittance and high total solar energy transmittance. The results show that net energy gain can be increased...

  15. Improved Windows for Cold Climates

    DEFF Research Database (Denmark)

    Laustsen, Jacob Birck; Svendsen, Svend

    2005-01-01

    A large part of the energy consumption in countries in Nordic and Arctic climates is used for space heating in buildings. In typical buildings the windows are responsible for a considerable part of the heat losses. Therefore there is a large potential for energy savings by developing and using...... windows with improved energy performance. Traditionally evaluation of the energy performance of windows has focussed on the thermal transmittance, but as windows differ from the rest of the building envelope by allowing solar energy to enter the building, the total solar energy transmittance is equally...... of the heating demand in typical single-family houses in Denmark and Greenland. The examined windows are typical new windows from Nordic countries and new proposals of improved windows with low thermal transmittance and high total solar energy transmittance. The results show that net energy gain can be increased...

  16. Windows with improved energy performance

    DEFF Research Database (Denmark)

    Noyé, Peter Anders; Laustsen, Jacob Birck; Svendsen, Svend

    2002-01-01

    . Heat loss through windows represents a considerably part of the total heat loss from houses. However windows provide a unique potential of solar energy gain to the building besides from providing daylight access and view. This results in a need for development of windows with improved energy...... part, for which reason, as far as energy efficiency and total economy are concerned, it has become more interesting to further develop frame structures. Traditionally, the energy performance of windows has primarily been characterised by the heat loss coefficient, U-value. However as the heat loss has...... decreased the total solar energy transmittance, g-value, has become much more important since the solar gain through windows contributes to the heating of houses. This paper describes potential improvements of the window elements with respect to the overall energy performance of the window. Most importantly...

  17. Invariant sets for Windows

    CERN Document Server

    Morozov, Albert D; Dragunov, Timothy N; Malysheva, Olga V

    1999-01-01

    This book deals with the visualization and exploration of invariant sets (fractals, strange attractors, resonance structures, patterns etc.) for various kinds of nonlinear dynamical systems. The authors have created a special Windows 95 application called WInSet, which allows one to visualize the invariant sets. A WInSet installation disk is enclosed with the book.The book consists of two parts. Part I contains a description of WInSet and a list of the built-in invariant sets which can be plotted using the program. This part is intended for a wide audience with interests ranging from dynamical

  18. Radiation controlling reversible window

    Energy Technology Data Exchange (ETDEWEB)

    Gell, H.A. Jr.

    1980-01-01

    A coated glass glazing system is presented including a transparent glass substrate having one surface coated with a radiation absorptive film which is overcoated with a radiation reflective film by a technique which renders the radiation reflective film radiation absorptive at the surface contracting the radiating absorptive film. The coated glass system is used as glazing for storm windows which are adapted to be reversible so that the radiation reflective surface may be exposed to the outside of the dwelling during the warm seasons to prevent excessive solar radiation from entering a dwelling and reversed during cold seasons to absorb solar radiation and utilize it to aid in keeping the dwelling interior warm.

  19. Windows Azure Platform

    CERN Document Server

    Redkar, Tejaswi

    2011-01-01

    The Windows Azure Platform has rapidly established itself as one of the most sophisticated cloud computing platforms available. With Microsoft working to continually update their product and keep it at the cutting edge, the future looks bright - if you have the skills to harness it. In particular, new features such as remote desktop access, dynamic content caching and secure content delivery using SSL make the latest version of Azure a more powerful solution than ever before. It's widely agreed that cloud computing has produced a paradigm shift in traditional architectural concepts by providin

  20. Windows Azure web sites

    CERN Document Server

    Chambers, James

    2013-01-01

    A no-nonsense guide to maintaining websites in Windows Azure If you're looking for a straightforward, practical guide to get Azure websites up and running, then this is the book for you. This to-the-point guide provides you with the tools you need to move and maintain a website in the cloud. You'll discover the features that most affect developers and learn how they can be leveraged to work to your advantage. Accompanying projects enhance your learning experience and help you to walk away with a thorough understanding of Azure's supported technologies, site deployment, and manageme

  1. Experimental determination of the weighting factor for the energy window subtraction-based downscatter correction for I-123 in brain SPECT studies

    Directory of Open Access Journals (Sweden)

    de Nijs Robin

    2010-01-01

    Full Text Available Correction for downscatter in I-123 SPECT can be performed by the subtraction of a secondary energy window from the main window, as in the triple-energy window method. This is potentially noise sensitive. For studies with limited amount of counts (e.g. dynamic studies, a broad subtraction window with identical width is preferred. This secondary window needs to be weighted with a factor higher than one, due to a broad backscatter peak from high-energy photons appearing at 172 keV. Spatial dependency and the numerical value of this weighting factor and the image contrast improvement of this correction were investigated in this study. Energy windows with a width of 32 keV were centered at 159 keV and 200 keV. The weighting factor was measured both with an I-123 point source and in a dopamine transporter brain SPECT study in 10 human subjects (5 healthy subjects and 5 patients by minimizing the background outside the head. Weighting factors ranged from 1.11 to 1.13 for the point source and from 1.16 to 1.18 for human subjects. Point source measurements revealed no position dependence. After correction, the measured specific binding ratio (image contrast increased significantly for healthy subjects, typically by more than 20%, while the background counts outside of all subjects were effectively removed. A weighting factor of 1.1-1.2 can be applied in clinical practice. This correction effectively removes downscatter and significantly improves image contrast inside the brain.

  2. Teaching topography-based and selection-based verbal behavior to developmentally disabled individuals: Some considerations

    OpenAIRE

    Shafer, Esther

    1993-01-01

    Augmentative and alternative communication systems are widely recommended for nonvocal developmentally disabled individuals, with selection-based systems becoming increasingly popular. However, theoretical and experimental evidence suggests that topography-based communication systems are easier to learn. This paper discusses research relevant to the ease of acquisition of topography-based and selection-based systems. Additionally, current practices for choosing and designing communication sys...

  3. Numerical Model based Reliability Estimation of Selective Laser Melting Process

    DEFF Research Database (Denmark)

    Mohanty, Sankhya; Hattel, Jesper Henri

    2014-01-01

    Selective laser melting is developing into a standard manufacturing technology with applications in various sectors. However, the process is still far from being at par with conventional processes such as welding and casting, the primary reason of which is the unreliability of the process. While...... of the selective laser melting process. A validated 3D finite-volume alternating-direction-implicit numerical technique is used to model the selective laser melting process, and is calibrated against results from single track formation experiments. Correlation coefficients are determined for process input...... parameters such as laser power, speed, beam profile, etc. Subsequently, uncertainties in the processing parameters are utilized to predict a range for the various outputs, using a Monte Carlo method based uncertainty analysis methodology, and the reliability of the process is established....

  4. Access Network Selection Based on Fuzzy Logic and Genetic Algorithms

    Directory of Open Access Journals (Sweden)

    Mohammed Alkhawlani

    2008-01-01

    Full Text Available In the next generation of heterogeneous wireless networks (HWNs, a large number of different radio access technologies (RATs will be integrated into a common network. In this type of networks, selecting the most optimal and promising access network (AN is an important consideration for overall networks stability, resource utilization, user satisfaction, and quality of service (QoS provisioning. This paper proposes a general scheme to solve the access network selection (ANS problem in the HWN. The proposed scheme has been used to present and design a general multicriteria software assistant (SA that can consider the user, operator, and/or the QoS view points. Combined fuzzy logic (FL and genetic algorithms (GAs have been used to give the proposed scheme the required scalability, flexibility, and simplicity. The simulation results show that the proposed scheme and SA have better and more robust performance over the random-based selection.

  5. Shortest Paths Based Web Service Selection in Internet of Things

    Directory of Open Access Journals (Sweden)

    Xiangdong Yin

    2014-01-01

    Full Text Available The connecting of things to the Internet makes it possible for smart things to access all kinds of Web services. However, smart things are energy-limited, and suitable selection of Web services will consume less resources. In this paper, we study the problem of selecting some Web service from the candidate set. We formulate this selection of Web services for smart things as single-source many-target shortest path problem. We design algorithms based on the Dijkstra and breadth-first search algorithms, propose an efficient pruning algorithm for breadth-first search, and analyze their performance of number of iterations and I/O cost. Our empirical evaluation on real-life graphs shows that our pruning algorithm is more efficient than the breadth-first search algorithm.

  6. Development of ITER diagnostic window assemblies

    Energy Technology Data Exchange (ETDEWEB)

    Maquet, Ph., E-mail: philippe.maquet@iter.org; Walker, C.I., E-mail: chris.walker@iter.org; Barnsley, R., E-mail: robin.barnsley@iter.org; Bertalot, L.; Encheva, A.; Pitcher, C.S.; Reichle, R.; Vayakis, G.; Veshchev, E.; Udintsev, V.S.; Walsh, M.J.; Watts, C.; Patel, K.M.; Giacomin, T.; Hughes, Shaun; Taylor, Neill; Pearce, Robert; Okayama, Katsumi

    2013-10-15

    Highlights: • The concepts chosen for ITER Diagnostic Windows are given. • The description of the main components of the window assemblies is presented. • An overview of the R and D related to the window assemblies is given. • The process for their development is briefly explained. -- Abstract: Most of ITER's diagnostics will be provided with viewing lines (optical, microwave, spectroscopic) for the monitoring of key characteristics of the plasma or for the achievement of physical measurements inside the vacuum vessel. For many of them the nature of the physical signal transmitted through the viewing lines requires the implementation of window assemblies incorporating either Glass/Ceramic or Beryllium window. The main requirements of the Diagnostic Window Assemblies are the transmission of the signals without attenuation or disturbances, the containment of vacuum, the confinement of in-vessel radioactive materials. Although they are generally not in direct viewing of the plasma, they are exposed to severe environmental conditions in normal and accidental conditions. The concept chosen for ITER Diagnostic Window Assemblies is based on a system of two windows with a monitored interspace, largely inspired from previous large machine solutions. Such a system is able to satisfy the transmission and vacuum requirements. Although this capability has previously proven a high reliability level, ITER conditions, which are more stringent, impose the requirement for improvement of existing designs and even the development of novel solutions, in particular to assure the radioactive material confinement function, which must be met in all circumstances including all off-normal conditions. Moreover the qualification of these concepts shall meet the nuclear safety requirements, although non metallic and beryllium components are not covered by existing codes and standards. This paper presents designs of window assemblies for different diagnostics. It gives an update of

  7. Development of ITER diagnostic window assemblies

    International Nuclear Information System (INIS)

    Highlights: • The concepts chosen for ITER Diagnostic Windows are given. • The description of the main components of the window assemblies is presented. • An overview of the R and D related to the window assemblies is given. • The process for their development is briefly explained. -- Abstract: Most of ITER's diagnostics will be provided with viewing lines (optical, microwave, spectroscopic) for the monitoring of key characteristics of the plasma or for the achievement of physical measurements inside the vacuum vessel. For many of them the nature of the physical signal transmitted through the viewing lines requires the implementation of window assemblies incorporating either Glass/Ceramic or Beryllium window. The main requirements of the Diagnostic Window Assemblies are the transmission of the signals without attenuation or disturbances, the containment of vacuum, the confinement of in-vessel radioactive materials. Although they are generally not in direct viewing of the plasma, they are exposed to severe environmental conditions in normal and accidental conditions. The concept chosen for ITER Diagnostic Window Assemblies is based on a system of two windows with a monitored interspace, largely inspired from previous large machine solutions. Such a system is able to satisfy the transmission and vacuum requirements. Although this capability has previously proven a high reliability level, ITER conditions, which are more stringent, impose the requirement for improvement of existing designs and even the development of novel solutions, in particular to assure the radioactive material confinement function, which must be met in all circumstances including all off-normal conditions. Moreover the qualification of these concepts shall meet the nuclear safety requirements, although non metallic and beryllium components are not covered by existing codes and standards. This paper presents designs of window assemblies for different diagnostics. It gives an update of the

  8. 基于LabWindows的数字多用表自动校准系统%Digital multi-meter automatic calibration system based on LabWindows

    Institute of Scientific and Technical Information of China (English)

    陈明亮; 蔡卫平; 古建平

    2012-01-01

    针对数字多用表校准时设置参数多,记录数据量大等特点,人工操作难以满足快速、准确校准的需求,提出了基于LabWindows软件平台构建自动校准系统的方案,设计了一款实用性强、通用性高的数字多用表自动校准系统.利用自动校准系统对数字多用表进行校准,实现了对被校数字多用表的校准与报告处理过程.经实验验证,所研制的数字多用表自动校准系统操作效率高、性能可靠,具有较好的应用前景.%Because of digital multi-meter calibration which needs setting parameters and recording the large amount of data etc,manual operation is difficult to meet the demand for fast and accurate calibrations new program based on LabWindows software platform is put forward to build automatic calibration system,a practical and versatility digital multi-meter automatic calibration system is designed. The using of automatic calibration system tests digital multi-meter, which achieves a process of calibration and report. From the experimental verification of the test,the developed digital multi-meter automatic calibration system with the characteristics of operational efficiency, reliable performance has a good application prospects.

  9. Environment-based selection effects of Planck clusters

    CERN Document Server

    Kosyra, Ralf; Seitz, Stella; Mana, Annalisa; Rozo, Eduardo; Rykoff, Eli; Sanchez, Ariel; Bender, Ralf

    2015-01-01

    We investigate whether the large scale structure environment of galaxy clusters imprints a selection bias on Sunyaev Zel'dovich (SZ) catalogs. Such a selection effect might be caused by line of sight (LoS) structures that add to the SZ signal or contain point sources that disturb the signal extraction in the SZ survey. We use the Planck PSZ1 union catalog (Planck Collab- oration et al. 2013a) in the SDSS region as our sample of SZ selected clusters. We calculate the angular two-point correlation function (2pcf) for physically correlated, foreground and background structure in the RedMaPPer SDSS DR8 catalog with respect to each cluster. We compare our results with an optically selected comparison cluster sample and with theoretical predictions. In contrast to the hypothesis of no environment-based selection, we find a mean 2pcf for background structures of -0.049 on scales of $\\lesssim 40'$, significantly non-zero at $\\sim 4 \\sigma$, which means that Planck clusters are more likely to be detected in regions of...

  10. Selection of Construction Methods: A Knowledge-Based Approach

    Directory of Open Access Journals (Sweden)

    Ximena Ferrada

    2013-01-01

    Full Text Available The appropriate selection of construction methods to be used during the execution of a construction project is a major determinant of high productivity, but sometimes this selection process is performed without the care and the systematic approach that it deserves, bringing negative consequences. This paper proposes a knowledge management approach that will enable the intelligent use of corporate experience and information and help to improve the selection of construction methods for a project. Then a knowledge-based system to support this decision-making process is proposed and described. To define and design the system, semistructured interviews were conducted within three construction companies with the purpose of studying the way that the method’ selection process is carried out in practice and the knowledge associated with it. A prototype of a Construction Methods Knowledge System (CMKS was developed and then validated with construction industry professionals. As a conclusion, the CMKS was perceived as a valuable tool for construction methods’ selection, by helping companies to generate a corporate memory on this issue, reducing the reliance on individual knowledge and also the subjectivity of the decision-making process. The described benefits as provided by the system favor a better performance of construction projects.

  11. Windows on the axion

    Energy Technology Data Exchange (ETDEWEB)

    Turner, M.S.

    1989-04-01

    Peccei-Quinn symmetry with attendant axion is a most compelling, and perhaps the most minimal, extension of the standard model, as it provides a very elegant solution to the nagging strong CP-problem associated with the THETA vacuum structure of QCD. However, particle physics gives little guidance as to the axion mass; a priori, the plausible values span the range: 10/sup /minus/12/ eV /approx lt/ m/sub a/ /approx lt/ 10/sup 6/ eV, some 18 orders-of-magnitude. Axions have a host of interesting astrophysical and cosmological effects, including, modifying the evolution of stars of all types (our sun, red giants, white dwarfs, and neutron stars), contributing significantly to the mass density of the Universe today, and producing detectable line radiation through the decays of relic axions. Consideration of these effects has probed 14 orders-of-magnitude in axion mass, and has left open only two windows for further exploration: 10/sup /minus/6/ eV /approx lt/ m/sub a/ /approx lt/ 10/sup /minus/3/ eV and 1 eV /approx lt/ m/sub a/ /approx lt/ 5 eV (hadronic axions only). Both these windows are accessible to experiment, and a variety of very interesting experiments, all of which involve ''heavenly axions,'' are being planned or are underway. 58 refs., 6 figs., 1 tab.

  12. Constraints on Relaxion Windows

    CERN Document Server

    Choi, Kiwoon

    2016-01-01

    We examine low energy phenomenology of the relaxion solution to the weak scale hierarchy problem. Assuming that the Hubble friction is responsible for the dissipation of relaxion energy, we identify the cosmological relaxion window which corresponds to the parameter region compatible with a given value of the acceptable number of inflationary $e$-foldings. We then discuss a variety of observational constraints on the relaxion window, while focusing on the case that the barrier potential to stabilize the relaxion is induced by new physics, rather than by low energy QCD dynamics. We find that majority of the parameter space with a relaxion mass $m_\\phi\\gtrsim 100$ eV or a relaxion decay constant $f\\lesssim 10^7$ GeV is excluded by existing constraints. There is an interesting small parameter region with $m_\\phi\\sim \\,0.2-1$ GeV and $f\\sim\\, {\\rm few}-10$ TeV, which is allowed by existing constraints, but can be probed soon by future beam dump experiment such as the SHiP experiment, or by improved EDM experiment...

  13. WINDOW-CLEANING

    CERN Multimedia

    Environmental Section / ST-TFM

    2001-01-01

    The two-month window-cleaning session on the Meyrin, Prévessin and LEP sites will soon begin. The cleaning contractors will work from Monday to Saturday, every week from 4.00 a.m. to 8.00 p.m. The work will be organised so as to disturb users as little as possible. In any event, a work notice will be left in each office 24 hours beforehand. To prevent any damage to documents or items which could occur despite the precautions taken, please clear completely the window-sills and the area immediately around them. If, however, for valid reasons, the work cannot be done on the scheduled day, please inform the Environmental Section by telephoning: 73753 / 74233 / 72242 If you are going to be absent during this two-month period, we should be grateful if you would clear the above mentioned areas before your departure. REMINDER To allow more thorough cleaning of the entrance doors to buildings and also facilitate the weekly work of the cleaning contractors, we ask you to make use of the notice boards at the...

  14. Mapping Neural Network Derived from the Parzen Window Estimator

    DEFF Research Database (Denmark)

    Schiøler, Henrik; Hartmann, U.

    1992-01-01

    The article presents a general theoretical basis for the construction of mapping neural networks. The theory is based on the Parzen Window estimator for......The article presents a general theoretical basis for the construction of mapping neural networks. The theory is based on the Parzen Window estimator for...

  15. FIR Filter Design Using An Adjustable Novel Window and Its Applications

    OpenAIRE

    Hrishi Rakshit; Muhammad Ahsan Ullah

    2015-01-01

    In this paper, a new class of adjustable window function, based on combination of tangent hyperbolic function and a weighted cosine series, is proposed to design an FIR filter. The proposed window is adjustable since the spectral characteristics of the window vary with the change of a simple window’s controlling parameter. The spectral characteristic of the proposed window is studied and its performance is compared with Hamming and Kaiser windows. Simulation results show that the proposed ...

  16. Acoustic Event Detection Based on MRMR Selected Feature Vectors

    OpenAIRE

    VOZARIKOVA Eva; Juhar, Jozef; CIZMAR Anton

    2012-01-01

    This paper is focused on the detection of potentially dangerous acoustic events such as gun shots and breaking glass in the urban environment. Various feature extraction methods can be used forrepresenting the sound in the detection system based on Hidden Markov Models of acoustic events. Mel – frequency cepstral coefficients, low - level descriptors defined in MPEG-7 standard and another time andspectral features were considered in the system. For the selection of final subset of features Mi...

  17. Fiber Selection from Diffusion Tensor Data based on Boolean Operators

    OpenAIRE

    Merhof, Dorit; Greiner, Günther; Buchfelder, Michael; Nimsky, Christopher

    2010-01-01

    Diffusion tensor imaging (DTI) allows investigating white matter structures in vivo which is of particular interest for neurosurgery. A promising approach for the reconstruction of neural pathways are streamline techniques, which are commonly referred to as fiber tracking. However, the resulting visualization of fibers within the whole brain may be complex and difficult to interpret. For this reason, a novel strategy for selecting specific tract systems based on user-defined regions of intere...

  18. Development of a thermodynamic data base for selected heavy metals

    International Nuclear Information System (INIS)

    The report on the development of a thermodynamic data base for selected heavy metals covers the description of experimental methods, the thermodynamic model for chromate, the thermodynamic model for dichromate, the thermodynamic model for manganese (II), the thermodynamic model for cobalt, the thermodynamic model for nickel, the thermodynamic model for copper (I), the thermodynamic model for copper(II), the thermodynamic model for mercury (0) and mercury (I), the thermodynamic model for mercury (III), the thermodynamic model for arsenate.

  19. Analysis of mutant prevention concentration and mutant selection window against multidrug-resistant pseudomonas aeruginosa%多重耐药铜绿假单胞菌防突变浓度及突变选择窗分析

    Institute of Scientific and Technical Information of China (English)

    李宏; 赵红峥; 李伟; 李巧霞; 张金艳

    2013-01-01

    目的:探讨阿米卡星(AMK)、异帕米星(ISP)与哌拉西林/他唑巴坦(TZP)联合对临床分离的多重耐药铜绿假单胞菌(multidrug-resistant pseudomonas aeruginosa,MRPA)防突变浓度(mutant prevention concentration,MPC),突变选择窗(mutant selection window,MSW)的影响,为临床合理使用抗生素,防止细菌耐药突变株产生提供理论依据.方法:琼脂稀释法分别测定AMK、ISP、TZP对临床分离的MRPA的MIC;微量肉汤稀释法测定AMK联合TZP、ISP联合TZP后对MRPA的MIC;琼脂稀释法测定AMK、ISP单独应用或与TZP联合用药对MRPA的MPC,并计算MSW.结果:两药联用组比单药组均能显著降低MPC值(P<0.05).突变选择窗(MSW)以缩小为主.结论:AMK、ISP分别与TZP联合应用能够降低AMK、ISP对MRPA的MPC、MSW,联合用药有利于防止耐药突变的发生.%Objective:To explore the influence of combined detection of Amikacin,Isepamicin and piperacillin -tazobactam on MPC and MSW of MRPA isolates in clinic,and provide the laboratory evidence for preventing antibiotics resistance,guiding antibiotic therapy and controlling nosocomial infections.Methods:1.The MICs of Amikacin,Isepamicin and piperacillin-tazobactam against the MRPA isolates were determined by agar dilution method;2.MICs of Amikacin combining with piperacillin-tazobactam(AMK/TZP),Isepamicin combining with piperacillin -tazobactam(ISP/TZP) against the MRPA were determined in cation-supplemented M-H broth using the micro -dilution technique; 3.The MPCs of Amikacin,Isepamicin alone and both combination with piperacillin-tazobactam separately against the MRPA were determined by agar plates dilution method.Results:1.The MPC decreased evidently in drug combination than single drug use; 2.Compared with drug use alone,MSW narrowed obviously in drug combination.Conclusion:Combination with TZP could decrease the MPC and MSW of AMK,ISP alone against MRPA,and this decrease can improve the ability of preventing drug resistance

  20. Piecewise Linear and Nonlinear Window Functions for Modelling of Nanostructured Memristor Device

    Directory of Open Access Journals (Sweden)

    T.D. Dongale

    2015-10-01

    Full Text Available The present paper reports two new window functions viz. piecewise linear window function and nonlinear window function for modelling of the nanostructured memristor device. The piecewise linear window function can be used for modelling of symmetric pinched hysteresis loop in I-V plane (for digital memory applications and the nonlinear window function can be used for modelling of nonlinear pinched hysteresis loop in I-V plane (for analog memory applications. Flexibility in the parameter selection is the main attractive feature of these window functions.

  1. Density-Based Data Stream Clustering Based on Damped Window Model%衰减窗口模型下基于密度的数据流聚类算法

    Institute of Scientific and Technical Information of China (English)

    王冬秀

    2013-01-01

      对目前主流数据流算法的优缺点进行分析后,提出了一种衰减窗口模型下基于密度的数据流聚类算法DWDCluSteam。算法采用衰减窗口技术,然后利用改进的树结构来维护和更新数据流的信息,最后利用周期性的剪枝策略,定期删除过期、稀疏的网格单元。仿真实验表明,相对于以往的数据流聚类算法,该算法可获得较好的聚类质量,较小的内存开销和较高的数据处理能力。%  To analysis the advantages and disadvantages of the recent main datastreams clustering algorithms ,a density-based data stream clustering over damped window model is put forward. DWDCluSteam uses damped window technology, then makes use of an improved tree structure to maintain and apdate the data stream summary,finally a period pruning strategy was disgned to delete expired and sparse grids. The simulation experiment suggests that the DWDCluSteam has better clustering quality and less memory consumption,higher data processing capacity.

  2. Antibiotic Selection Pressure Determination through Sequence-Based Metagenomics.

    Science.gov (United States)

    Willmann, Matthias; El-Hadidi, Mohamed; Huson, Daniel H; Schütz, Monika; Weidenmaier, Christopher; Autenrieth, Ingo B; Peter, Silke

    2015-12-01

    The human gut forms a dynamic reservoir of antibiotic resistance genes (ARGs). Treatment with antimicrobial agents has a significant impact on the intestinal resistome and leads to enhanced horizontal transfer and selection of resistance. We have monitored the development of intestinal ARGs over a 6-day course of ciprofloxacin (Cp) treatment in two healthy individuals by using sequenced-based metagenomics and different ARG quantification methods. Fixed- and random-effect models were applied to determine the change in ARG abundance per defined daily dose of Cp as an expression of the respective selection pressure. Among various shifts in the composition of the intestinal resistome, we found in one individual a strong positive selection for class D beta-lactamases which were partly located on a mobile genetic element. Furthermore, a trend to a negative selection has been observed with class A beta-lactamases (-2.66 hits per million sample reads/defined daily dose; P = 0.06). By 4 weeks after the end of treatment, the composition of ARGs returned toward their initial state but to a different degree in both subjects. We present here a novel analysis algorithm for the determination of antibiotic selection pressure which can be applied in clinical settings to compare therapeutic regimens regarding their effect on the intestinal resistome. This information is of critical importance for clinicians to choose antimicrobial agents with a low selective force on their patients' intestinal ARGs, likely resulting in a diminished spread of resistance and a reduced burden of hospital-acquired infections with multidrug-resistant pathogens. PMID:26369961

  3. Merit based selection and performance assessment for mineworkers

    Energy Technology Data Exchange (ETDEWEB)

    Edmonds-Ward, L.; Trendell, B. [Wambo Mining Corporation Pty. Ltd. (Australia)

    1998-12-31

    While objective selection and assessments are an accepted part of employing managers and other staff, they have had only a limited place when selecting mineworkers in Australia. Wambo Mining Corporation has used occupational testing as part of its recruitment process since 1994. In 1997 when Wambo undertook development of a new `on site` subsidiary underground mine called Wollemi Services, they wanted to select the most appropriate people in terms of skill and on the job performance. A process was agreed between management, employees and their local representatives to select and transfer people on merit from within shift groups. In the first intake, three supervisors and thirty-nine production workers were selected from an existing workforce of over two hundred. Part of the process to ensure validity and to help people feel comfortable was an objective job analysis for positions. From a computer-based analysis, person specifications were developed and appropriate test batteries identified to facilitate selection. A combination of a self-report occupational personality or work styles questionnaire and several ability tests were used. In addition, each employee and two supervisors completed an assessment of the employee`s current work performance. The validity of the self-report assessments has since been confirmed in a correlation analysis of the results with supervisor feedback on performance. It was essential that the overall process was confidential so that people would be prepared to participate and the vast majority of people took up the competitive challenge. In the four months since the process, there has been a significant breakdown of restrictive practices. As expected, there was a productivity improvement at the new site. In addition, at the existing mine there has been a significant realignment of individual performance with many individuals being dynamic, progressive and showing real responsibility in their work. 2 tabs.

  4. Antibiotic Selection Pressure Determination through Sequence-Based Metagenomics.

    Science.gov (United States)

    Willmann, Matthias; El-Hadidi, Mohamed; Huson, Daniel H; Schütz, Monika; Weidenmaier, Christopher; Autenrieth, Ingo B; Peter, Silke

    2015-12-01

    The human gut forms a dynamic reservoir of antibiotic resistance genes (ARGs). Treatment with antimicrobial agents has a significant impact on the intestinal resistome and leads to enhanced horizontal transfer and selection of resistance. We have monitored the development of intestinal ARGs over a 6-day course of ciprofloxacin (Cp) treatment in two healthy individuals by using sequenced-based metagenomics and different ARG quantification methods. Fixed- and random-effect models were applied to determine the change in ARG abundance per defined daily dose of Cp as an expression of the respective selection pressure. Among various shifts in the composition of the intestinal resistome, we found in one individual a strong positive selection for class D beta-lactamases which were partly located on a mobile genetic element. Furthermore, a trend to a negative selection has been observed with class A beta-lactamases (-2.66 hits per million sample reads/defined daily dose; P = 0.06). By 4 weeks after the end of treatment, the composition of ARGs returned toward their initial state but to a different degree in both subjects. We present here a novel analysis algorithm for the determination of antibiotic selection pressure which can be applied in clinical settings to compare therapeutic regimens regarding their effect on the intestinal resistome. This information is of critical importance for clinicians to choose antimicrobial agents with a low selective force on their patients' intestinal ARGs, likely resulting in a diminished spread of resistance and a reduced burden of hospital-acquired infections with multidrug-resistant pathogens.

  5. Covariance-Based Measurement Selection Criterion for Gaussian-Based Algorithms

    OpenAIRE

    Auat Cheein, Fernando A.

    2013-01-01

    Process modeling by means of Gaussian-based algorithms often suffers from redundant information which usually increases the estimation computational complexity without significantly improving the estimation performance. In this article, a non-arbitrary measurement selection criterion for Gaussian-based algorithms is proposed. The measurement selection criterion is based on the determination of the most significant measurement from both an estimation convergence perspective and the covariance ...

  6. Window observers for linear systems

    Directory of Open Access Journals (Sweden)

    Utkin Vadim

    2000-01-01

    Full Text Available Given a linear system x ˙ = A x + B u with output y = C x and a window function ω ( t , i.e., ∀ t , ω ( t ∈ {0,1 }, and assuming that the window function is Lebesgue measurable, we refer to the following observer, x ˆ = A x + B u + ω ( t L C ( x − x ˆ as a window observer. The stability issue is treated in this paper. It is proven that for linear time-invariant systems, the window observer can be stabilized by an appropriate design under a very mild condition on the window functions, albeit for linear time-varying system, some regularity of the window functions is required to achieve observer designs with the asymptotic stability. The corresponding design methods are developed. An example is included to illustrate the possible applications

  7. Photodetachment neutralizer development: Laser window design study: Volume 2, Window design details: Final report

    International Nuclear Information System (INIS)

    During 1983, TRW conducted a photodetachment neutralizer development (PDN) - Laser Resonator study. The emphasis of this contract was to assess a technology base of the PDN concept. Three technology assessments were conducted: Mirror Technology assessments, Window Engineering Analysis/Technology assessment, and COIL medium modeling with emphasis on PDN issues. Based on the results of these technology assessments the follow-on contract was funded to develop a technology verification. Due to funding limitations this technology verification program was divided into two separate follow-on contracts. Under this follow-on contract, the following tasks were performed: Measure Attenuation Coefficient of 3M FC-104, FC-77, FC-43 with temperature and attenuation coefficient of sapphire, generate finite element/finite difference thermal/structural model of the HEX double window, determine thermal/structural response from the proposed operating conditions, develop option response data from the deflection/stress inputs, recommend design and operating parameters for demonstrator and operational HEX double window, generate Level 1 layouts and drawings of double paned demonstrator window and window mount/manifold, and generate preliminary layout drawings of shutter. Thermal and structural analyses were conducted for both the operational and demonstrator window heat exchanger (HEX) designs and operating conditions

  8. Index Fund Selections with GAs and Classifications Based on Turnover

    Science.gov (United States)

    Orito, Yukiko; Motoyama, Takaaki; Yamazaki, Genji

    It is well known that index fund selections are important for the risk hedge of investment in a stock market. The`selection’means that for`stock index futures’, n companies of all ones in the market are selected. For index fund selections, Orito et al.(6) proposed a method consisting of the following two steps : Step 1 is to select N companies in the market with a heuristic rule based on the coefficient of determination between the return rate of each company in the market and the increasing rate of the stock price index. Step 2 is to construct a group of n companies by applying genetic algorithms to the set of N companies. We note that the rule of Step 1 is not unique. The accuracy of the results using their method depends on the length of time data (price data) in the experiments. The main purpose of this paper is to introduce a more`effective rule’for Step 1. The rule is based on turnover. The method consisting of Step 1 based on turnover and Step 2 is examined with numerical experiments for the 1st Section of Tokyo Stock Exchange. The results show that with our method, it is possible to construct the more effective index fund than the results of Orito et al.(6). The accuracy of the results using our method depends little on the length of time data (turnover data). The method especially works well when the increasing rate of the stock price index over a period can be viewed as a linear time series data.

  9. The workplace window view

    DEFF Research Database (Denmark)

    Lottrup, Lene Birgitte Poulsen; Stigsdotter, Ulrika K.; Meilby, Henrik;

    2015-01-01

    Office workers’ job satisfaction and ability to work are two important factors for the viability and competitiveness of most companies, and existing studies in contexts other than workplaces show relationships between a view of natural elements and, for example, student performance...... and neighbourhood satisfaction. This study investigates whether relationships between window view, and work ability and job satisfaction also exist in the context of the workplace by focusing on office workers’ view satisfaction. The results showed that a view of natural elements was related to high view...... satisfaction, and that high view satisfaction was related to high work ability and high job satisfaction. Furthermore, the results indicated that job satisfaction mediated the effect of view satisfaction on work ability. These findings show that a view of a green outdoor environment at the workplace can...

  10. Aortopulmonary window in infants

    Directory of Open Access Journals (Sweden)

    Mehdi Ghaderian

    2012-01-01

    Full Text Available One of the rarest congenital heart diseases that results from a defect between the main pulmonary artery and the proximal aorta is named aortopulmonary window (APW. Such abnormality could be isolated, but in fifty percent of patients may be associated with other cardiac abnormalities, including arch abnormalities, specifically coarctation of the aorta, interrupted aortic arch, tetralogy of fallot, and atrial septal defect (ASD. Surgical closure or catheter-delivered devices is recommended in all patients with APW and should be performed after diagnosis as soon as possible to prevent irreversible pulmonary vascular disease. In the current era, early mortality following repair of simple APW is low and depends on the presence of associated lesions, especially interrupted aortic arch. We report an 8-month-old boy with APW who was referred to our center by respiratory symptoms and heart murmurs.

  11. Improvement of a Grey Based Method for supplier selection problem

    Directory of Open Access Journals (Sweden)

    T.S. Hong

    2008-12-01

    Full Text Available Purpose: In this article, we combine this new approach based on the concepts of Technique for Order Preferenceby Similarity to Ideal Solution (TOPSIS to evaluate and select the best supplier.Design/methodology/approach: Supplier evaluation is a Multi-Attribute Decision-Making (MADM problemthat is affected by quantitative and qualitative factors, some of which may conflict. Since most of the inputinformation is not known accurately, selecting the right suppliers becomes more difficult. Grey theory is one ofthe new mathematical methods used to analyze systems with uncertain and incomplete information.Findings: Through this article, it is demonstrated that the improved method, which is used to solve the MADMproblems for selecting the best supplier, is a good means of evaluation, and it appears to be more appropriate.Practical implications: Grey theory is a new mathematical field that is one of the methods used to study theuncertainty of a system.Originality/value: Through this article, it was demonstrated that the improved method, which is used to solvethe MADM problems for selecting the best supplier, is a good means of evaluation, and it appears to be moreappropriate.

  12. Examination of the technical potential of near-infrared switching thermochromic windows for commercial building applications

    Energy Technology Data Exchange (ETDEWEB)

    Hoffmann, Sabine [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Building Technology and Urban Systems Dept.. Environmental Energy Technologies Division; Lee, Eleanor S. [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Building Technology and Urban Systems Dept.. Environmental Energy Technologies Division; Clavero, César [Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Building Technology and Urban Systems Dept.. Environmental Energy Technologies Division

    2014-01-29

    Current thermochromic windows modulate solar transmission primarily within the visible range, resulting in reduced space-conditioning energy use but also reduced daylight, thereby increasing lighting energy use compared to conventional static, near-infrared selective, low-emittance windows. To better understand the energy savings potential of improved thermochromic devices, a hypothetical near-infrared switching thermochromic glazing was defined based on guidelines provided by the material science community. In this paper, EnergyPlus simulations were conducted on a prototypical large office building and a detailed analysis was performed showing the progression from switching characteristics to net window heat flow and perimeter zone loads and then to perimeter zone heating, ventilation, and air-conditioning (HVAC) and lighting energy use for a mixed hot/cold climate and a hot, humid climate in the US. When a relatively high daylight transmission is maintained when switched (Tsol=0.10–0.50 and Tvis=0.30–0.60) and if coupled with a low-e inboard glazing layer (e=0.04), the hypothetical thermochromic window with a low critical switching temperature range (14–20 °C) achieved reductions in total site annual energy use of 14.0–21.1 kW h/m2-floor-yr or 12–14% for moderate- to large-area windows (WWR≥0.30) in Chicago and 9.8–18.6 kW h/m2-floor-yr or 10–17% for WWR≥0.45 in Houston compared to an unshaded spectrally-selective, low-e window (window E1) in south-, east-, and west-facing perimeter zones. Finally, if this hypothetical thermochromic window can be offered at costs that are competitive to conventional low-e windows and meet esthetic requirements defined by the building industry and end users, then the technology is likely to be a viable energy-efficiency option for internal load dominated commercial buildings.

  13. Windows 7 the definitive guide

    CERN Document Server

    Stanek, William R

    2010-01-01

    This book provides everything you need to manage and maintain Windows 7. You'll learn all of the features and enhancements in complete detail, along with specifics for configuring the operating system to put you in full control. Bestselling author and Windows expert William Stanek doesn't just show you the steps you need to follow, he also tells you how features work, why they work, and how you can customize them to meet your needs. Learn how to squeeze every bit of power out of Windows 7 to take full advantage of its features and programs. Set up, customize, and tune Windows 7-Optimize its

  14. 探索Windows2001

    Institute of Scientific and Technical Information of China (English)

    李红

    2000-01-01

    Window S2000刚刚发布,微软就在开发其后继产品WindowS2001(产品代号Whistler),Windows 2001就是传说中的Windows Whistler,微软在.net计划中称之为“下个版本的Windows”,它将是第一个同时包含消费型和商业型操作系统代码的Windows,采用基于XML的全新用户界面(被称作“视觉风格”)。

  15. Subject Responses to Electrochromic Windows

    Energy Technology Data Exchange (ETDEWEB)

    Clear, Robert; Inkarojrit, Vorapat; Lee, Eleanor

    2006-03-03

    Forty-three subjects worked in a private office with switchable electrochromic windows, manually-operated Venetian blinds, and dimmable fluorescent lights. The electrochromic window had a visible transmittance range of approximately 3-60%. Analysis of subject responses and physical data collected during the work sessions showed that the electrochromic windows reduced the incidence of glare compared to working under a fixed transmittance (60%) condition. Subjects used the Venetian blinds less often and preferred the variable transmittance condition, but used slightly more electric lighting with it than they did when window transmittance was fixed.

  16. Microsoft Windows Operating System Essentials

    CERN Document Server

    Carpenter, Tom

    2012-01-01

    A full-color guide to key Windows 7 administration concepts and topics Windows 7 is the leading desktop software, yet it can be a difficult concept to grasp, especially for those new to the field of IT. Microsoft Windows Operating System Essentials is an ideal resource for anyone new to computer administration and looking for a career in computers. Delving into areas such as fundamental Windows 7 administration concepts and various desktop OS topics, this full-color book addresses the skills necessary for individuals looking to break into a career in IT. Each chapter begins with a list of topi

  17. Windows 7 The Missing Manual

    CERN Document Server

    Pogue, David

    2010-01-01

    In early reviews, geeks raved about Windows 7. But if you're an ordinary mortal, learning what this new system is all about will be challenging. Fear not: David Pogue's Windows 7: The Missing Manual comes to the rescue. Like its predecessors, this book illuminates its subject with reader-friendly insight, plenty of wit, and hardnosed objectivity for beginners as well as veteran PC users. Windows 7 fixes many of Vista's most painful shortcomings. It's speedier, has fewer intrusive and nagging screens, and is more compatible with peripherals. Plus, Windows 7 introduces a slew of new features,

  18. Beginning Windows 8.1

    CERN Document Server

    Halsey, Mike

    2013-01-01

    Windows 8 has been described by Microsoft as its 'boldest' Windows release ever and the 8.1 update enhances the paradigm further. Beginning Windows 8.1 takes you through the new features and helps you get more out of the familiar to reveal the fullest possibilities for this amazing new operating system. You will learn, with non-technical language used throughout, how to get up and running in the new Windows interface, minimize downtime, maximize productivity, and harness the features you never knew existed to take control of your computer and enjoy the peace of mind and excitement that comes w

  19. A self region based real-valued negative selection algorithm

    Institute of Scientific and Technical Information of China (English)

    ZHANG Feng-bin; WANG Da-wei; WANG Sheng-wen

    2008-01-01

    Point-wise negative selection algorithms, which generate their detector sets based on point of self da-ta, have lower training efficiency and detection rate. To solve this problem, a self region based real-valued neg-ative selection algorithm is presented. In this new approach, the continuous self region is defined by the collec-tion of self data, the partial training takes place at the training stage according to both the radius of self region and the cosine distance between gravity of the self region and detector candidate, and variable detectors in the self region are deployed. The algorithm is tested using the triangle shape of self region in the 2-D complement space and KDD CUP 1999 data set. Results show that, more information can be provided when the training self points are used together as a whole, and compared with the point-wise negative selection algorithm, the new ap-proach can improve the training efficiency of system and the detection rate significantly.

  20. Voxel selection in FMRI data analysis based on sparse representation.

    Science.gov (United States)

    Li, Yuanqing; Namburi, Praneeth; Yu, Zhuliang; Guan, Cuntai; Feng, Jianfeng; Gu, Zhenghui

    2009-10-01

    Multivariate pattern analysis approaches toward detection of brain regions from fMRI data have been gaining attention recently. In this study, we introduce an iterative sparse-representation-based algorithm for detection of voxels in functional MRI (fMRI) data with task relevant information. In each iteration of the algorithm, a linear programming problem is solved and a sparse weight vector is subsequently obtained. The final weight vector is the mean of those obtained in all iterations. The characteristics of our algorithm are as follows: 1) the weight vector (output) is sparse; 2) the magnitude of each entry of the weight vector represents the significance of its corresponding variable or feature in a classification or regression problem; and 3) due to the convergence of this algorithm, a stable weight vector is obtained. To demonstrate the validity of our algorithm and illustrate its application, we apply the algorithm to the Pittsburgh Brain Activity Interpretation Competition 2007 functional fMRI dataset for selecting the voxels, which are the most relevant to the tasks of the subjects. Based on this dataset, the aforementioned characteristics of our algorithm are analyzed, and a comparison between our method with the univariate general-linear-model-based statistical parametric mapping is performed. Using our method, a combination of voxels are selected based on the principle of effective/sparse representation of a task. Data analysis results in this paper show that this combination of voxels is suitable for decoding tasks and demonstrate the effectiveness of our method. PMID:19567340

  1. A Reliability Based Model for Wind Turbine Selection

    Directory of Open Access Journals (Sweden)

    A.K. Rajeevan

    2013-06-01

    Full Text Available A wind turbine generator output at a specific site depends on many factors, particularly cut- in, rated and cut-out wind speed parameters. Hence power output varies from turbine to turbine. The objective of this paper is to develop a mathematical relationship between reliability and wind power generation. The analytical computation of monthly wind power is obtained from weibull statistical model using cubic mean cube root of wind speed. Reliability calculation is based on failure probability analysis. There are many different types of wind turbinescommercially available in the market. From reliability point of view, to get optimum reliability in power generation, it is desirable to select a wind turbine generator which is best suited for a site. The mathematical relationship developed in this paper can be used for site-matching turbine selection in reliability point of view.

  2. MCS Selection Criteria Based on Performance Simulation for HSDPA

    Institute of Scientific and Technical Information of China (English)

    杨小倩; 赵胜辉; 费泽松; 匡镜明

    2003-01-01

    An adaptive modulation and coding (AMC) scheme integrated with multi-code transmission for high speed downlink packet access is presented and some modulation and coding scheme (MCS) selection criteria are proposed to maximize single user data rates. Based on link-level performance analysis, the MCS selection criteria are proposed with the constraints of QoS requirement, modulation level, channel coding rate and the number of available channelization codes. By allowing multiple transmission parameters changing, these criteria make the scheme more flexible to time-varying mobile channel with comparatively low complexity through a look-up table method. The AMC scheme is sensitive to the changes of channel condition and can save the channelization codes in an applicable way by applying these criteria.

  3. IMAGE SELECTION FOR 3D MEASUREMENT BASED ON NETWORK DESIGN

    Directory of Open Access Journals (Sweden)

    T. Fuse

    2015-05-01

    Full Text Available 3D models have been widely used by spread of many available free-software. On the other hand, enormous images can be easily acquired, and images are utilized for creating the 3D models recently. However, the creation of 3D models by using huge amount of images takes a lot of time and effort, and then efficiency for 3D measurement are required. In the efficiency strategy, the accuracy of the measurement is also required. This paper develops an image selection method based on network design that means surveying network construction. The proposed method uses image connectivity graph. By this, the image selection problem is regarded as combinatorial optimization problem and the graph cuts technique can be applied. Additionally, in the process of 3D reconstruction, low quality images and similarity images are extracted and removed. Through the experiments, the significance of the proposed method is confirmed. Potential to efficient and accurate 3D measurement is implied.

  4. MODEL SELECTION METHOD BASED ON MAXIMAL INFORMATION COEFFICIENT OF RESIDUALS

    Institute of Scientific and Technical Information of China (English)

    课秋衡; 蒋杭进; 丁义明

    2014-01-01

    The traditional model selection criterions try to make a balance between fitted error and model complexity. Assumptions on the distribution of the response or the noise, which may be misspecified, should be made before using the traditional ones. In this ar-ticle, we give a new model selection criterion, based on the assumption that noise term in the model is independent with explanatory variables, of minimizing the association strength between regression residuals and the response, with fewer assumptions. Maximal Information Coefficient (MIC), a recently proposed dependence measure, captures a wide range of associ-ations, and gives almost the same score to different type of relationships with equal noise, so MIC is used to measure the association strength. Furthermore, partial maximal information coefficient (PMIC) is introduced to capture the association between two variables removing a third controlling random variable. In addition, the definition of general partial relationship is given.

  5. Clonal Selection Algorithm Based Iterative Learning Control with Random Disturbance

    Directory of Open Access Journals (Sweden)

    Yuanyuan Ju

    2013-01-01

    Full Text Available Clonal selection algorithm is improved and proposed as a method to solve optimization problems in iterative learning control. And a clonal selection algorithm based optimal iterative learning control algorithm with random disturbance is proposed. In the algorithm, at the same time, the size of the search space is decreased and the convergence speed of the algorithm is increased. In addition a model modifying device is used in the algorithm to cope with the uncertainty in the plant model. In addition a model is used in the algorithm cope with the uncertainty in the plant model. Simulations show that the convergence speed is satisfactory regardless of whether or not the plant model is precise nonlinear plants. The simulation test verify the controlled system with random disturbance can reached to stability by using improved iterative learning control law but not the traditional control law.

  6. Automatic key frame selection using a wavelet-based approach

    Science.gov (United States)

    Campisi, Patrizio; Longari, Andrea; Neri, Alessandro

    1999-10-01

    In a multimedia framework, digital image sequences (videos) are by far the most demanding as far as storage, search, browsing and retrieval requirements are concerned. In order to reduce the computational burden associated to video browsing and retrieval, a video sequence is usually decomposed into several scenes (shots) and each of them is characterized by means of some key frames. The proper selection of these key frames, i.e. the most representative frames in the scene, is of paramount importance for computational efficiency. In this contribution a novel key frame extraction technique based on the wavelet analysis is presented. Experimental results show the capability of the proposed algorithm to select key frames properly summarizing the shot.

  7. Stepped Fault Line Selection Method Based on Spectral Kurtosis and Relative Energy Entropy of Small Current to Ground System

    Directory of Open Access Journals (Sweden)

    Xiaowei Wang

    2014-01-01

    Full Text Available This paper proposes a stepped selection method based on spectral kurtosis relative energy entropy. Firstly, the length and type of window function are set; then when fault occurs, enter step 1: the polarity of first half-wave extremes is analyzed; if the ratios of extremes between neighboring lines are positive, the bus bar is the fault line, else, the SK relative energy entropies are calculated, and then enter step 2: if the obtained entropy multiple is bigger than the threshold or equal to the threshold, the overhead line of max entropy corresponding is the fault line, if not, enter step 3: the line of max entropy corresponding is the fault line. At last, the applicability of the proposed algorithm is presented, and the comparison results are discussed.

  8. Frequency selective surfaces based high performance microstrip antenna

    CERN Document Server

    Narayan, Shiv; Jha, Rakesh Mohan

    2016-01-01

    This book focuses on performance enhancement of printed antennas using frequency selective surfaces (FSS) technology. The growing demand of stealth technology in strategic areas requires high-performance low-RCS (radar cross section) antennas. Such requirements may be accomplished by incorporating FSS into the antenna structure either in its ground plane or as the superstrate, due to the filter characteristics of FSS structure. In view of this, a novel approach based on FSS technology is presented in this book to enhance the performance of printed antennas including out-of-band structural RCS reduction. In this endeavor, the EM design of microstrip patch antennas (MPA) loaded with FSS-based (i) high impedance surface (HIS) ground plane, and (ii) the superstrates are discussed in detail. The EM analysis of proposed FSS-based antenna structures have been carried out using transmission line analogy, in combination with the reciprocity theorem. Further, various types of novel FSS structures are considered in desi...

  9. Shape-based feature selection for microcalcification evaluation

    Science.gov (United States)

    Marti, Joan; Cufi, Xavier; Regincos, Jordi; Espanol, Josep; Pont, Josep; Barcelo, Carles

    1998-06-01

    This work focuses on the selection of a set of shape-based features in order to assist radiologists in differentiating between malignant and benignant clustered microcalcifications in mammograms. The results obtained allow the creation of a model for the evaluation of the benignant or malignant character of the microcalcifications in a mammogram, based exclusively on the following parameters: number of clusters, number of holes, area, Feret elongation, roughness and elongation. The performance of the classification scheme is close to the mean performance of three expert radiologists, which allows to consider the proposed method for assisting the diagnosis and encourages to continue the investigation in this field. Additionally, the work is based on an unpublished database formed by patients of the Regional Health Area of Girona, which in the future may contribute to increase the digital mammogram databases.

  10. Window technique for climate trend analysis

    Science.gov (United States)

    Szentimrey, Tamás; Faragó, Tibor; Szalai, Sándor

    1992-01-01

    Climatic characteristics are affected by various systematic and occasional impacts: besides the changes in the observing system (locations of the stations of the meteorological network, instruments, observing procedures), the possible local-scale and global natural and antropogenic impacts on climatic conditions should be taken into account. Apart from the predictability problems, the phenomenological analysis of the climatic variability and the determination of past persistent climatic anomalies are significant problems, among other aspects, as evidence of the possible anomalous behavior of climate or for climate impact studies. In this paper, a special technique for the identification of such “shifts” in the observational series is presented. The existence of these significant shorter or longer term changes in the mean characteristics for the properly selected adjoining periods of time is the necessary condition for the formation of any more or less unidirectional climatic trends. Actually, the window technique is based on a complete set of orthogonal functions. The sensitivity of the proposed model on its main parameters is also investigated. This method is applied for hemispheric and Hungarian data series of the mean annual surface temperature.

  11. Windows forensic analysis toolkit advanced analysis techniques for Windows 7

    CERN Document Server

    Carvey, Harlan

    2012-01-01

    Now in its third edition, Harlan Carvey has updated "Windows Forensic Analysis Toolkit" to cover Windows 7 systems. The primary focus of this edition is on analyzing Windows 7 systems and on processes using free and open-source tools. The book covers live response, file analysis, malware detection, timeline, and much more. The author presents real-life experiences from the trenches, making the material realistic and showing the why behind the how. New to this edition, the companion and toolkit materials are now hosted online. This material consists of electronic printable checklists, cheat sheets, free custom tools, and walk-through demos. This edition complements "Windows Forensic Analysis Toolkit, 2nd Edition", (ISBN: 9781597494229), which focuses primarily on XP. It includes complete coverage and examples on Windows 7 systems. It contains Lessons from the Field, Case Studies, and War Stories. It features companion online material, including electronic printable checklists, cheat sheets, free custom tools, ...

  12. 探讨Windows环境下80×86汇编程序教学中的几个问题%Discussing Several Problems about 80×86 Assembly Language teaching based on Windows System

    Institute of Scientific and Technical Information of China (English)

    刘俊

    2016-01-01

    为了帮助学生更好学习掌握80×86汇编语言,必须解决在Windows环境下如何运行汇编程序。该文以实现软中断、中断实现磁盘读写为例,分析了在Windows操作系统上如何仿真PC/XT计算机的逻辑过程,揭示了PC/XT计算机工作机理。%To help students to learn 80×86 assembly language better, measure must be considered about how to run assembly pro-gram in windows operating system. The paper analyses logic process of PC/XT computer based on windows system by realizing computer soft interruption and disk reading and writing. It reveals working mechanism of PC/XT computer.

  13. Single-Sided Natural Ventilation through a Velux Roof Window

    DEFF Research Database (Denmark)

    Li, Zhigang; Nielsen, Peter Vilhelm; Fransson, J.

    2004-01-01

    This paper investigates the single-sided natural ventilation through a VELUX centre pivot roof window under natural weather conditions. The aim of the investigation is to develop an empirical formulation for air flow rate through a roof window based on CFD and tracer gas decay measurement methods...

  14. Neural Network Model Based Cluster Head Selection for Power Control

    Directory of Open Access Journals (Sweden)

    Krishan Kumar

    2011-01-01

    Full Text Available Mobile ad-hoc network has challenge of the limited power to prolong the lifetime of the network, because power is a valuable resource in mobile ad-hoc network. The status of power consumption should be continuously monitored after network deployment. In this paper, we propose coverage aware neural network based power control routing with the objective of maximizing the network lifetime. Cluster head selection is proposed using adaptive learning in neural networks followed by coverage. The simulation results show that the proposed scheme can be used in wide area of applications in mobile ad-hoc network.

  15. Core Business Selection Based on Ant Colony Clustering Algorithm

    Directory of Open Access Journals (Sweden)

    Yu Lan

    2014-01-01

    Full Text Available Core business is the most important business to the enterprise in diversified business. In this paper, we first introduce the definition and characteristics of the core business and then descript the ant colony clustering algorithm. In order to test the effectiveness of the proposed method, Tianjin Port Logistics Development Co., Ltd. is selected as the research object. Based on the current situation of the development of the company, the core business of the company can be acquired by ant colony clustering algorithm. Thus, the results indicate that the proposed method is an effective way to determine the core business for company.

  16. PV window - Development and demonstrations. Final report

    Energy Technology Data Exchange (ETDEWEB)

    Haugaard, P.

    2011-05-15

    Using the results from the EU project RenewTransnet, which focused on the development of a pane with integrated solar cells, the goal of this project is to develop these principles into a window solution. This window solution is targeted to Danish building tradition and architecture. It is expected that an elegant PV-window solution for both new and retrofit buildings is developed during this project, and which appearance can be customized to each building. Based on results from a related projects carried out by Gaia Solar, the window solution will have the potential of being approximately 30% cheaper than similar products on the market. In this project this price reduction is the objective of the development of a window solution. The project team has succeeded in developing a 2-layer PV-window with glass / glass lamination with EVA as foil, which is 35% cheaper than similar products on the market. Since the price for the frame-profile does not differ significantly at market level, the price comparison is made on the basis of the developed PV-pane. The objective of 30 % price reduction in relation to similar products on the market is met. A special production process to the making glass/glass lamination with EVA as foil has been developed, in which a frame is put around the module which intends both to remove the unwanted tension along the edges, and to prevent the significant spillage of EVA from the module under pressure and prevent the invasive bubbles along the edge of module. Since the developed production method for making glass/glass modules with EVA is simple, a further cost reduction will primarily be in a reduction of the price of the cell. The project process has resulted in the development of a product, which due to continuous restrictions in the building regulations, will be very attractive in future buildings. (LN)

  17. Window prototypes during the project

    DEFF Research Database (Denmark)

    Schultz, Jørgen Munthe

    1996-01-01

    The conditions for the PASSYS test and the results of the measurements on one of the aerogel window prototypes are described.......The conditions for the PASSYS test and the results of the measurements on one of the aerogel window prototypes are described....

  18. Important notice for Windows 2000 Service Pack 3 computers

    CERN Multimedia

    The NICE Team

    2005-01-01

    Microsoft is ending support for Windows 2000 Service Pack 3, which was introduced in 2002. As a consequence, computers running Windows 2000 Service Pack 3 (or older versions1) ) must be updated. It is recommended that Windows 2000 computers be re-installed with Windows XP Service Pack 2 (see http://cern.ch/Win/Services/Installation/Diane). If this is not possible for compatibility reasons, Windows 2000 Service Pack 4 must be installed to ensure the computers continue to receive security patches (see http://cern.ch/Win/Docs/2000SP4). In the next few days, NICE 2000 computers requiring an update will receive a pop-up window with instructions. Users requiring help with the update can contact Helpdesk@cern.ch or call 78888. If your computer needs to be updated you are recommended to read the additional information available at http://cern.ch/Win/Docs/2000SP3. The NICE Team 1) To determine your Windows service pack version, use the ‘Start' button and select ‘Run'. In the new window that opens, type ‘wi...

  19. A Database Selection Expert System Based on Reference Librarian's Database Selection Strategy: A Usability and Empirical Evaluation.

    Science.gov (United States)

    Ma, Wei

    2002-01-01

    Describes the development of a prototype Web-based database selection expert system at the University of Illinois at Urbana-Champaign that is based on reference librarians' database selection strategy which allows users to simultaneously search all available databases to identify those most relevant to their search using free-text keywords or…

  20. Windows with an improved energy balance of 30%

    DEFF Research Database (Denmark)

    Schultz, Jørgen Munthe

    The aim of the project has been to investigate and to develop thermally improved windows based on an evaluation of the energy balance of the window, i.e. the total influence of the window on the energy consumption for space heating. The energy balance is the net heat flow per window area which...... means that both energy losses and transmittance of solar radiation is considered.The final goal of the project was to improve the energy balance of a window with at least 30%. As reference is chosen a common low energy glazing mounted in a wooden frame construction measuring 1188 × 1188 mm2. The...... transparent area forms about 68% of the total window area and the total U-value of the window is about 1.4 W/(m2 K).The energy balance depends strongly of the window orientation and the thermal mass of the room behind. In order to characterize the energy balance of a window with a single value a method has...

  1. Windows for tablets for dummies

    CERN Document Server

    Rathbone, Andy

    2013-01-01

    Just for you--Windows 8 from the tablet user's perspective If you're an experienced Windows user, you don't need a guide to everything that Windows 8 can do, just to those tools and functions that work on your tablet. And so here it is. This new book zeros in on what you need to know to work best on your tablet with Windows 8. Topics include navigating the new Windows 8 interface and how it works on a touchscreen, how to safely connect to the Internet, how to work with apps or share your tablet in a group, and much more. If you're a new tablet user, you'll particularly appre

  2. Prism Window for Optical Alignment

    Science.gov (United States)

    Tang, Hong

    2008-01-01

    A prism window has been devised for use, with an autocollimator, in aligning optical components that are (1) required to be oriented parallel to each other and/or at a specified angle of incidence with respect to a common optical path and (2) mounted at different positions along the common optical path. The prism window can also be used to align a single optical component at a specified angle of incidence. Prism windows could be generally useful for orienting optical components in manufacture of optical instruments. "Prism window" denotes an application-specific unit comprising two beam-splitter windows that are bonded together at an angle chosen to obtain the specified angle of incidence.

  3. Handbook on Windows and Energy

    DEFF Research Database (Denmark)

    Thomsen, Kirsten Engelund; Schultz, Jørgen Munthe; Svendsen, Sv Aa Højgaard;

    The handbook on windows and energy is a general description of windows with the main focus put on the energy performance. Common window products are described by commonly used nomenclature, description of frame and sash conctructions and description of commonly used glazing types.The energy...... flow and detailed calculation of light and solar transmittance is given.Different measurement techniques for characterization of window heat loss coefficient and total solar energy transmittance is described and references to interantional standards are given.Finally, the handbook includes...... a comprehensive list of window related standards and a list of Nordic research and development projects.Two programs are encloased in the handbook for calculation of solar radiation on inclined surfaces including a shadow correction and a simple program for evaluation of energy savings and risk of overtemperature....

  4. Advanced windows Information System (WIS): A uniform European tool to calculate the thermal and solar properties of windows

    NARCIS (Netherlands)

    Bakker, L.G.; Dijk, H.A.L. van; Geus, A.C. de

    1996-01-01

    WIS is a uniform, user friendly, PC-based, European software tool to determine the thermal and solar characteristics of window systems (glazing, frames, solar shading, etc.) and window components. WIS includes databases with component propertjes and routines for calculation of the thermal-optical in

  5. Advanced windows Information System (WIS): A uniform European tool to calculate the thermal and solar properties of windows

    NARCIS (Netherlands)

    Bakker, L.G.; Dijk, H.A.L. van

    1996-01-01

    WIS is a uniform, user friendly, PC-based, European software tool to determine the thermal and solar character-istics of window systems (glazing, frames, solar shading, etc.) and window components. WIS includes databases with component properties and routines for calculation of the thermal-optical i

  6. Fuzzy Axiomatic Design approach based green supplier selection

    DEFF Research Database (Denmark)

    Kannan, Devika; Govindan, Kannan; Rajendran, Sivakumar

    2015-01-01

    proposes a multi-criteria decision-making (MCDM) approach called Fuzzy Axiomatic Design (FAD) to select the best green supplier for Singapore-based plastic manufacturing company. At first, the environmental criteria was developed along with the traditional criteria based on the literature review...... and company requirements. Next, the FAD methodology evaluates the requirements of both the manufacturer (design needs) and the supplier (functional needs), and because multiple criteria must be considered, a multi-objective optimization model of a fuzzy nature must be developed. The application...... responsible in addition to being efficiently managed. A significant way to implement responsible GSCM is to reconsider, in innovative ways, the purchase and supply cycle, and a preliminary step would be to ensure that the supplier of goods successfully incorporates green criteria. Therefore, this paper...

  7. Glass nanopore-based ion-selective electrodes.

    Science.gov (United States)

    Shim, Jun Ho; Kim, Juneho; Cha, Geun Sig; Nam, Hakhyun; White, Ryan J; White, Henry S; Brown, Richard B

    2007-05-15

    Glass nanopore-based all-solid-state ion-selective electrodes (ISEs) have been developed to probe the distribution of ionic species at micro- or submicrometer-length scales, e.g., mapping of ion flux through micrometer-sized pores. The all-solid-state ISE was fabricated by sealing a conically etched platinum wire (d = 25-microm; radius of etched tip scanning electrochemical microscope experiments to map the ion flux through a micropore. The same ISE was also used as the base transducer of the neutral carrier-doped solvent polymeric membrane. The optimized polymer membranes used for the glass nanopore-based all-solid-state ISE require a higher ratio of plasticizer/polymer (9/1) compared to those for conventional ISE (2/1). An ISE based on deposition of an IrO2 layer at the base of a glass nanopore electrode exhibited a highly sensitive response (79.7 +/- 2.3 mV/pH) to variations in pH and could be used for approximately 3 weeks. PMID:17411008

  8. Reference View Selection in DIBR-Based Multiview Coding.

    Science.gov (United States)

    Maugey, Thomas; Petrazzuoli, Giovanni; Frossard, Pascal; Cagnazzo, Marco; Pesquet-Popescu, Beatrice

    2016-04-01

    Augmented reality, interactive navigation in 3D scenes, multiview video, and other emerging multimedia applications require large sets of images, hence larger data volumes and increased resources compared with traditional video services. The significant increase in the number of images in multiview systems leads to new challenging problems in data representation and data transmission to provide high quality of experience on resource-constrained environments. In order to reduce the size of the data, different multiview video compression strategies have been proposed recently. Most of them use the concept of reference or key views that are used to estimate other images when there is high correlation in the data set. In such coding schemes, the two following questions become fundamental: 1) how many reference views have to be chosen for keeping a good reconstruction quality under coding cost constraints? And 2) where to place these key views in the multiview data set? As these questions are largely overlooked in the literature, we study the reference view selection problem and propose an algorithm for the optimal selection of reference views in multiview coding systems. Based on a novel metric that measures the similarity between the views, we formulate an optimization problem for the positioning of the reference views, such that both the distortion of the view reconstruction and the coding rate cost are minimized. We solve this new problem with a shortest path algorithm that determines both the optimal number of reference views and their positions in the image set. We experimentally validate our solution in a practical multiview distributed coding system and in the standardized 3D-HEVC multiview coding scheme. We show that considering the 3D scene geometry in the reference view, positioning problem brings significant rate-distortion improvements and outperforms the traditional coding strategy that simply selects key frames based on the distance between cameras. PMID

  9. Selectively Encrypted Pull-Up Based Watermarking of Biometric data

    Science.gov (United States)

    Shinde, S. A.; Patel, Kushal S.

    2012-10-01

    Biometric authentication systems are becoming increasingly popular due to their potential usage in information security. However, digital biometric data (e.g. thumb impression) are themselves vulnerable to security attacks. There are various methods are available to secure biometric data. In biometric watermarking the data are embedded in an image container and are only retrieved if the secrete key is available. This container image is encrypted to have more security against the attack. As wireless devices are equipped with battery as their power supply, they have limited computational capabilities; therefore to reduce energy consumption we use the method of selective encryption of container image. The bit pull-up-based biometric watermarking scheme is based on amplitude modulation and bit priority which reduces the retrieval error rate to great extent. By using selective Encryption mechanism we expect more efficiency in time at the time of encryption as well as decryption. Significant reduction in error rate is expected to be achieved by the bit pull-up method.

  10. Selection of Vendor Based on Intuitionistic Fuzzy Analytical Hierarchy Process

    Directory of Open Access Journals (Sweden)

    Prabjot Kaur

    2014-01-01

    Full Text Available Business environment is characterized by greater domestic and international competitive position in the global market. Vendors play a key role in achieving the so-called corporate competition. It is not easy however to identify good vendors because evaluation is based on multiple criteria. In practice, for VSP most of the input information about the criteria is not known precisely. Intuitionistic fuzzy set is an extension of the classical fuzzy set theory (FST, which is a suitable way to deal with impreciseness. In other words, the application of intuitionistic fuzzy sets instead of fuzzy sets means the introduction of another degree of freedom called nonmembership function into the set description. In this paper, we proposed a triangular intuitionistic fuzzy number based approach for the vendor selection problem using analytical hierarchy process. The crisp data of the vendors is represented in the form of triangular intuitionistic fuzzy numbers. By applying AHP which involves decomposition, pairwise comparison, and deriving priorities for the various levels of the hierarchy, an overall crisp priority is obtained for ranking the best vendor. A numerical example illustrates our method. Lastly a sensitivity analysis is performed to find the most critical criterion on the basis of which vendor is selected.

  11. Commercial facility site selection simulating based on MAS

    Science.gov (United States)

    Chao, Yi; Li, Qingquan; Zheng, Guizhou

    2008-10-01

    The location of commercial facility decides the benefit of the operator to a large degree. Existing location methods can express the static relationships between site selection result and location factors, but there still are some limites when express the dynamic and uncertain relationship between them. Hence, a dynamic, stochastic and forecastable location model should be built which can introduce the customer's behavior into the model and combine the macro pattern and micro spatial interaction. So the authors proposes Geosim-LM based on MAS. Geosim-LM has 3 kinds of agents, CustAgent, SiteAgent and GovAgent. They represent the customers, commercial fercilities and government. The land type, land price and traffic are the model environment. Then Geosim-LM is applied in the bank branches site evaluation and selection in Liwan district, Guangzhou. In existing bank branches site evaluation, there are 70% consistent in score grade between result of Geosim-LM after 200 round runing and actual rebust location. It proves the model is reliable and feasible. The conclusions can be get from the paper. MAS have advantages in location choice than existed methods. The result of Geosim-LM running can powerfully proves that building location model based on MAS is feasible.

  12. AIN-Based Action Selection Mechanism for Soccer Robot Systems

    OpenAIRE

    Yin-Tien Wang; Zhi-Jun You; Chia-Hsing Chen

    2009-01-01

    Role and action selections are two major procedures of the game strategy for multiple robots playing the soccer game. In role-select procedure, a formation is planned for the soccer team, and a role is assigned to each individual robot. In action-select procedure, each robot executes an action provided by an action selection mechanism to fulfill its role playing. The role-select procedure was often designed efficiently by using the geometry approach. However, the action-select procedure devel...

  13. SWiM: A Simple Window Mover

    OpenAIRE

    Chang, Tony; Cook, Damon; Su, Ramona

    2005-01-01

    As computers become more ubiquitous, traditional two-dimensional interfaces must be replaced with interfaces based on a three-dimensional metaphor. However, these interfaces must still be as simple and functional as their two-dimensional predecessors. This paper introduces SWiM, a new interface for moving application windows between various screens, such as wall displays, laptop monitors, and desktop displays, in a three-dimensional physical environment. SWiM was designed based on the results...

  14. FIR Filter Design Using An Adjustable Novel Window and Its Applications

    Directory of Open Access Journals (Sweden)

    Hrishi Rakshit

    2015-08-01

    Full Text Available In this paper, a new class of adjustable window function, based on combination of tangent hyperbolic function and a weighted cosine series, is proposed to design an FIR filter. The proposed window is adjustable since the spectral characteristics of the window vary with the change of a simple window’s controlling parameter. The spectral characteristic of the proposed window is studied and its performance is compared with Hamming and Kaiser windows. Simulation results show that the proposed window yields better ripple and side-lobe roll-off ratios compare to the mentioned windows. Moreover, the paper represents the application of the proposed window in finite impulse response (FIR filter design. The results confirm that the filter designed by the proposed window provides 11.5607 dB better ripple ratio than Kaiser windows. In side-lobe roll-off ratio measurement, the proposed window based FIR low-pass filter attains 95.75 dB and 14.4534 dB better result than Hamming and Kaiser windows respectively. Moreover, the filter designed using the proposed window method reduces additive white Gaussian noise from the ECG signal more precisely than Kaiser window.

  15. The Study of UNI Switch Window Based on QD-SOA%基于QD-SOA的UNI开关窗口研究

    Institute of Scientific and Technical Information of China (English)

    朱晓卿

    2015-01-01

    This paper analyzes the switch window of ultrafast-nonlinear interferometer using quantum-dot semi-conductor optical amplifier.The impacts of polarization maintaining fiber differential group delay,peak power and pulse width of the control optical are discussed respectively.Analyses show that the polarization maintaining fiber differential group delay decides the width of switch window.The suitable peak power and narrower pulse width of control optical can get better switch window.Compared to the bulk and quantum-well semiconductor optical amplifier,the quan-tum-dot semiconductor optical amplifiers could be better used in ultrafast all-optical signal processing due to faster re-covery time and higher saturated output power.%本文结合量子点半导体光放大器的仿真模型,对超快非线性干涉仪的开关窗口特性进行了研究分析,探讨了不同的保偏光纤差分群延时、控制光脉冲的峰值功率、脉冲宽度等因素对开关窗口的影响,结果表明超快非线性干涉仪的窗口大小是由保偏光纤的差分群延时决定的,同时要得到较好的开关窗口,可以采用峰值功率适当、脉冲宽度较窄的控制光脉冲.相较于普通半导体光放大器,量子点半导体光放大器增益恢复时间快、饱和输出功率高,可以更好地应用于高速全光信号处理中.

  16. Dilating window STFT-based identification of digital modulation signals%基于伸缩窗口STFT的信号调制的识别研究

    Institute of Scientific and Technical Information of China (English)

    孔翠莲; 周新志

    2012-01-01

    伸缩窗口短时Fourier变换(STFT)通过对窗函数引入伸缩变换对短时Fourier变换进行改进,实现时频分辨率随信号频率变化自动可调,能较好地刻画信号中的瞬态结构.本文把伸缩窗口短时Fourier变换这种时间-频率-尺度三维信号处理方法引入到了数字通信信号调制盲识别领域,对ASK、FSK和PSK信号的伸缩窗口STFT--域特征进行了理论分析和软件仿真,最后给出了识别算法和仿真结果.仿真实验结果及性能分析表明,该算法是可行的,具有较好的抗噪声性能.%Dilating Window Short-Time-Fourier transformation is the improvement of STFT by introducing dilating transformation to the window function,realizes automatically adjusting the time-frequency solution with the changes of the signal frequency. It can better represent the instantaneity. Dilating window STFT is introduced to solve the problemof identifying the modulation format of an incoming signal, as the time- frequency - scale three-dimensional signal processing. By means of computer simulations and the theories analysis, the features of ASK, FSK and PSK are extracted. At the end, a modulation recognition algorithm and the results of computer simulations are given. The simulation results and performance analysis show that the algorithm is feasible and it has good noise immunity.

  17. Real-Time Communication Between Matlab and C++ Based on Windows Message%基于Windows消息的Matlab与C++实时通讯方法

    Institute of Scientific and Technical Information of China (English)

    陈少成

    2010-01-01

    讨论了Matlab及C++混合编程的优点,并根据当前情况下Matlab与C++混合编程方法的不足,提出了一种使用Matlab下MEX文件通过标准Windows WM_COPYDATA消息进行Matlab与标准windows程序进行实时双向通讯的方法.详细分析了此种方法的难点,并给出了方法的具体实现.

  18. Experimental evaluation of 350 MHz RF accelerator windows for the low energy demonstration accelerator

    Energy Technology Data Exchange (ETDEWEB)

    Cummings, K.; Rees, D.; Roybal, W. [and others

    1997-09-01

    Radio frequency (RF) windows are historically a point where failure occurs in input power couplers for accelerators. To obtain a reliable, high-power, 350 MHz RF window for the Low Energy Demonstration Accelerator (LEDA) project of the Accelerator Production of Tritium program, RF windows prototypes from different vendors were tested. Experiments were performed to evaluate the RF windows by the vendors to select a window for the LEDA project. The Communications and Power, Inc. (CPI) windows were conditioned to 445 kW in roughly 15 hours. At 445 kW a window failed, and the cause of the failure will be presented. The English Electronic Valve, Inc. (EEV) windows were conditioned to 944 kW in 26 hours and then tested at 944 kW for 4 hours with no indication of problems.

  19. A weight based genetic algorithm for selecting views

    Science.gov (United States)

    Talebian, Seyed H.; Kareem, Sameem A.

    2013-03-01

    Data warehouse is a technology designed for supporting decision making. Data warehouse is made by extracting large amount of data from different operational systems; transforming it to a consistent form and loading it to the central repository. The type of queries in data warehouse environment differs from those in operational systems. In contrast to operational systems, the analytical queries that are issued in data warehouses involve summarization of large volume of data and therefore in normal circumstance take a long time to be answered. On the other hand, the result of these queries must be answered in a short time to enable managers to make decisions as short time as possible. As a result, an essential need in this environment is in improving the performances of queries. One of the most popular methods to do this task is utilizing pre-computed result of queries. In this method, whenever a new query is submitted by the user instead of calculating the query on the fly through a large underlying database, the pre-computed result or views are used to answer the queries. Although, the ideal option would be pre-computing and saving all possible views, but, in practice due to disk space constraint and overhead due to view updates it is not considered as a feasible choice. Therefore, we need to select a subset of possible views to save on disk. The problem of selecting the right subset of views is considered as an important challenge in data warehousing. In this paper we suggest a Weighted Based Genetic Algorithm (WBGA) for solving the view selection problem with two objectives.

  20. Mobility-Based Mobile Relay Selection in MANETs

    Science.gov (United States)

    Kim, Gilnam; Lee, Hyoungjoo; Lee, Kwang Bok

    The future wireless mobile communication networks are expected to provide seamless wireless access and data exchange to mobile users. In particular, it is expected that the demand for ubiquitous data exchange between mobile users will increase with the widespread use of various wireless applications of the intelligent transportation system (ITS) and intelligent vehicles. Mobile ad hoc networks (MANETs) are one of the representative research areas pursuing the technology needed to satisfy the increasing mobile communication requirements. However, most of the works on MANET systems do not take into account the continuous and dynamic changes of nodal mobility to accommodate system design and performance evaluation. The mobility of nodes limits the reliability of communication between the source and the destination node since a link between two continuously moving nodes is established only when one node enters the transmission range of the other. To alleviate this problem, mobile relay has been studied. In particular, it is shown that relay selection is an efficient way to support nodal mobility in MANET systems. In this paper, we propose a mobility-based relay selection algorithm for the MANET environment. Firstly, we define the lifetime as the maximum link duration for which the link between two nodes remains active. Therefore, the lifetime indicates the reliability of the relay link which measures its capability to successfully support relayed communication when requested by the source node. Furthermore, we consider a series of realistic scenarios according to the randomness of nodal mobility. Thus, the proposed algorithm can be easily applied in practical MANET systems by choosing the appropriate node mobility behavior. The numerical results show that the improved reliability of the proposed algorithm's relayed communication is achieved with a proper number of mobile relay nodes rather than with the conventional selection algorithm. Lastly, we show that random

  1. PUMA: version 4 for Windows

    International Nuclear Information System (INIS)

    Up to now, the three dimensional diffusion code PUMA was implemented in DOS for a Pc-386 and Pc-486. Because of the continuous progress in hardware resources, a new version for Windows was implemented. This new version takes advantage of many Windows facilities, and is provided with a special editor and that facilitates considerably the use of the program, enhancing by means of colors the significant words and title of the process control. An in line help system was also provided, which can be used by means of 'hot words' for access to each help Window. (author)

  2. Windows Phone 7 Made Simple

    CERN Document Server

    Trautschold, Martin

    2011-01-01

    With Windows Phone 7, Microsoft has created a completely new smartphone operating system that focuses on allowing users to be productive with their smartphone in new ways, while offering seamless integration and use of Microsoft Office Mobile as well as other productivity apps available in the Microsoft App Store. Windows Phone 7 Made Simple offers a clear, visual, step-by-step approach to using your Windows Phone 7 smartphone, no matter what the manufacturer. Author Jon Westfall is an expert in mobile devices, recognized by Microsoft as a "Most Valuable Professional" with experience

  3. Windows 8 visual quick tips

    CERN Document Server

    McFedries, Paul

    2012-01-01

    Easy-in, easy-out format covers all the bells and whistles of Windows 8 If you want to learn how to work smarter and faster in Microsoft's Windows 8 operating system, this easy-to-use, compact guide delivers the goods. Designed for visual learners, it features short explanations and full-color screen shots on almost every page, and it's packed with timesaving tips and helpful productivity tricks. From enhancing performance and managing digital content to setting up security and much more, this handy guide will help you get more out of Windows 8. Uses full-color screen shots and short, step-by-

  4. Time and Frequency Domain Investigation of Selected Memristor Based Analog Circuits

    OpenAIRE

    Dongale, T. D.; Gaikwad, P. K.; Kamat, R. K.

    2016-01-01

    In this paper we investigate few memristor based analog circuits namely the phase shift oscillator, integrator and differentiator which have been explored numerously using the traditional lumped components. We use LTspice-IV platform for simulation of the above said circuits. The investigation resorts to the nonlinear dopent drift model of memristor and the window function portrayed in the literature for nonlinearity realization. The results of our investigations depict good agreement with th...

  5. Duplex-Selective Ruthenium-based DNA Intercalators

    Science.gov (United States)

    Shade, Chad M.; Kennedy, Robert D.; Rouge, Jessica L.; Rosen, Mari S.; Wang, Mary X.; Seo, Soyoung E.; Clingerman, Daniel J.

    2016-01-01

    We report the design and synthesis of small molecules that exhibit enhanced luminescence in the presence of duplex rather than single-stranded DNA. The local environment presented by a well-known [Ru(dipyrido[2,3-a:3',2'-c]phenazine)L2]2+-based DNA intercalator was modified by functionalizing the bipyridine ligands with esters and carboxylic acids. By systematically varying the number and charge of the pendant groups, it was determined that decreasing the electrostatic interaction between the intercalator and the anionic DNA backbone reduced single-strand interactions and translated to better duplex specificity. In studying this class of complexes, a single RuII complex emerged that selectively luminesces in the presence of duplex DNA with little to no background from interacting with single stranded DNA. This complex shows promise as a new dye capable of selectively staining double versus single-stranded DNA in gel electrophoresis, which cannot be done with conventional SYBR dyes. PMID:26119581

  6. Rule Based Selection of 2D Urban Area Map Objects

    Directory of Open Access Journals (Sweden)

    Jagdish Lal Raheja

    2010-09-01

    Full Text Available The purpose of cartographic generalization is to represent a particular situation adapted to the needs of its users, with adequate legibility of the representation and perceptional congruity with the real situation. In this paper, a simple approach is presented for the selection process of building ground plans that are represented as 2D line, square and polygon segments. It is based on simple selection process from the field of computer graphics. It is important to preserve the overall characteristics of the buildings; the lines are simplified with regard to geometric relations. These characteristics allow for an easy recognition of buildings even on small displays of mobile devices. Such equipment has become a tool for our everyday life in the form of mobile phones, personal digital assistants and GPS assisted navigation systems. Although the computing performance and network bandwidth will increase further, such devices will always be limited by the rather small display area available for communicating the spatial information. This means that an appropriate transformation and visualization of building data as presented in this paper is essential.

  7. NVC Based Model for Selecting Effective Requirement Elicitation Technique

    Directory of Open Access Journals (Sweden)

    Md. Rizwan Beg

    2012-10-01

    Full Text Available Requirement Engineering process starts from gathering of requirements i.e.; requirements elicitation. Requirementselicitation (RE is the base building block for a software project and has very high impact onsubsequent design and builds phases as well. Accurately capturing system requirements is the major factorin the failure of most of software projects. Due to the criticality and impact of this phase, it is very importantto perform the requirements elicitation in no less than a perfect manner. One of the most difficult jobsfor elicitor is to select appropriate technique for eliciting the requirement. Interviewing and Interactingstakeholder during Elicitation process is a communication intensive activity involves Verbal and Nonverbalcommunication (NVC. Elicitor should give emphasis to Non-verbal communication along with verbalcommunication so that requirements recorded more efficiently and effectively. In this paper we proposea model in which stakeholders are classified by observing non-verbal communication and use it as a basefor elicitation technique selection. We also propose an efficient plan for requirements elicitation which intendsto overcome on the constraints, faced by elicitor.

  8. Spectroscopic Assessment of WISE-based Young Stellar Object Selection

    CERN Document Server

    Koenig, Xavier; Padgett, Deborah; DeFelippis, Daniel

    2015-01-01

    We have conducted a sensitive search down to the hydrogen burning limit for unextincted stars over $\\sim$200 square degrees around Lambda Orionis and 20 square degrees around Sigma Orionis using the methodology of Koenig & Leisawitz (2014). From WISE and 2MASS data we identify 544 and 418 candidate YSOs in the vicinity of Lambda and Sigma respectively. Based on our followup spectroscopy for some candidates and the existing literature for others, we found that $\\sim$80% of the K14-selected candidates are probable or likely members of the Orion star forming region. The yield from the photometric selection criteria shows that WISE sources with $K_S -w3 > 1.5$ mag and $K_S $ between 10--12 mag are most likely to show spectroscopic signs of youth, while WISE sources with $K_S -w3 > 4$ mag and $K_S > 12$ were often AGNs when followed up spectroscopically. The population of candidate YSOs traces known areas of active star formation, with a few new `hot spots' of activity near Lynds 1588 and 1589 and a more dispe...

  9. Grab Windows training opportunities; check CERN Windows roadmap!

    CERN Multimedia

    IT Department

    2011-01-01

    CERN Operating Systems and Information Services group (IT-OIS) actively monitors market trends to check how new software products correspond to CERN needs. In the Windows world, Windows 7 has been a big hit, with over 1500 Windows 7 PCs within less than a year since its support was introduced at CERN. No wonder: Windows XP is nearly 10 years old and is steadily approaching the end of its life-cycle. At CERN, support for Windows XP will stop at the end of December 2012. Compared to Vista, Windows 7 has the same basic hardware requirements, but offers higher performance, so the decision to upgrade is rather straightforward. CERN support for Vista will end in June 2011. In the world of Microsoft Office, version 2007 offers better integration with the central services than the older version 2003. Progressive upgrade from 2003 to 2007 is planned to finish in September 2011, but users are encouraged to pro-actively upgrade at their convenience. Please note that Office 2007 brings an important change in the area of ...

  10. Feature selection gait-based gender classification under different circumstances

    Science.gov (United States)

    Sabir, Azhin; Al-Jawad, Naseer; Jassim, Sabah

    2014-05-01

    This paper proposes a gender classification based on human gait features and investigates the problem of two variations: clothing (wearing coats) and carrying bag condition as addition to the normal gait sequence. The feature vectors in the proposed system are constructed after applying wavelet transform. Three different sets of feature are proposed in this method. First, Spatio-temporal distance that is dealing with the distance of different parts of the human body (like feet, knees, hand, Human Height and shoulder) during one gait cycle. The second and third feature sets are constructed from approximation and non-approximation coefficient of human body respectively. To extract these two sets of feature we divided the human body into two parts, upper and lower body part, based on the golden ratio proportion. In this paper, we have adopted a statistical method for constructing the feature vector from the above sets. The dimension of the constructed feature vector is reduced based on the Fisher score as a feature selection method to optimize their discriminating significance. Finally k-Nearest Neighbor is applied as a classification method. Experimental results demonstrate that our approach is providing more realistic scenario and relatively better performance compared with the existing approaches.

  11. Absorbance characterization of microsphere-based ion-selective optodes

    Energy Technology Data Exchange (ETDEWEB)

    Ye Nan [Department of Chemistry, Purdue University, West Lafayette, IN 47907 (United States); Wygladacz, Katarzyna [Department of Chemistry, Purdue University, West Lafayette, IN 47907 (United States); Bakker, Eric [Department of Chemistry, Purdue University, West Lafayette, IN 47907 (United States)]. E-mail: bakkere@purdue.edu

    2007-07-23

    Ionophore-based microsphere sensors are characterized here in transmission mode. These sensors contain a lipophilic ionophore for the analyte cation, a chromoionophore for recognizing H{sup +}, and a lipophilic cation-exchanger. They function on the basis of an ion-exchange equilibration step where an increased concentration of analyte ion leads to increased level of extraction into the bulk of the microsphere, expelling protons in return and deprotonating the chromoionophore. Since the path length is variable across the microsphere, such bead-based sensors are normally characterized in fluorescence mode. In this paper, the response of the sensing microspheres is calculated from the ratio of transmitted light intensities at the absorbance peak maxima of the protonated and unprotonated forms of the chromoionophore. At a fixed position of the particle, the resulting responses are found to be independent of light scattering, incident light intensity and the shape or size of the microsphere. The responses of potassium-selective microspheres obtained by this method agree quantitatively with corresponding fluorescence-based data.

  12. Window area and development drive spatial variation in bird-window collisions in an urban landscape.

    Science.gov (United States)

    Hager, Stephen B; Cosentino, Bradley J; McKay, Kelly J; Monson, Cathleen; Zuurdeeg, Walt; Blevins, Brian

    2013-01-01

    Collisions with windows are an important human-related threat to birds in urban landscapes. However, the proximate drivers of collisions are not well understood, and no study has examined spatial variation in mortality in an urban setting. We hypothesized that the number of fatalities at buildings varies with window area and habitat features that influence avian community structure. In 2010 we documented bird-window collisions (BWCs) and characterized avian community structure at 20 buildings in an urban landscape in northwestern Illinois, USA. For each building and season, we conducted 21 daily surveys for carcasses and nine point count surveys to estimate relative abundance, richness, and diversity. Our sampling design was informed by experimentally estimated carcass persistence times and detection probabilities. We used linear and generalized linear mixed models to evaluate how habitat features influenced community structure and how mortality was affected by window area and factors that correlated with community structure. The most-supported model was consistent for all community indices and included effects of season, development, and distance to vegetated lots. BWCs were related positively to window area and negatively to development. We documented mortalities for 16/72 (22%) species (34 total carcasses) recorded at buildings, and BWCs were greater for juveniles than adults. Based on the most-supported model of BWCs, the median number of annual predicted fatalities at study buildings was 3 (range = 0-52). These results suggest that patchily distributed environmental resources and levels of window area in buildings create spatial variation in BWCs within and among urban areas. Current mortality estimates place little emphasis on spatial variation, which precludes a fundamental understanding of the issue. To focus conservation efforts, we illustrate how knowledge of the structural and environmental factors that influence bird-window collisions can be used to

  13. Window area and development drive spatial variation in bird-window collisions in an urban landscape.

    Directory of Open Access Journals (Sweden)

    Stephen B Hager

    Full Text Available Collisions with windows are an important human-related threat to birds in urban landscapes. However, the proximate drivers of collisions are not well understood, and no study has examined spatial variation in mortality in an urban setting. We hypothesized that the number of fatalities at buildings varies with window area and habitat features that influence avian community structure. In 2010 we documented bird-window collisions (BWCs and characterized avian community structure at 20 buildings in an urban landscape in northwestern Illinois, USA. For each building and season, we conducted 21 daily surveys for carcasses and nine point count surveys to estimate relative abundance, richness, and diversity. Our sampling design was informed by experimentally estimated carcass persistence times and detection probabilities. We used linear and generalized linear mixed models to evaluate how habitat features influenced community structure and how mortality was affected by window area and factors that correlated with community structure. The most-supported model was consistent for all community indices and included effects of season, development, and distance to vegetated lots. BWCs were related positively to window area and negatively to development. We documented mortalities for 16/72 (22% species (34 total carcasses recorded at buildings, and BWCs were greater for juveniles than adults. Based on the most-supported model of BWCs, the median number of annual predicted fatalities at study buildings was 3 (range = 0-52. These results suggest that patchily distributed environmental resources and levels of window area in buildings create spatial variation in BWCs within and among urban areas. Current mortality estimates place little emphasis on spatial variation, which precludes a fundamental understanding of the issue. To focus conservation efforts, we illustrate how knowledge of the structural and environmental factors that influence bird-window

  14. Observational Selection Effects with Ground-based Gravitational Wave Detectors

    CERN Document Server

    Chen, Hsin-Yu; Vitale, Salvatore; Holz, Daniel E; Katsavounidis, Erik

    2016-01-01

    Ground-based interferometers are not perfectly all-sky instruments, and it is important to account for their behavior when considering the distribution of detected events. In particular, the LIGO detectors are most sensitive to sources above North America and the Indian Ocean and, as the Earth rotates, the sensitive regions are swept across the sky. However, because the detectors do not acquire data uniformly over time, there is a net bias on detectable sources' right ascensions. Both LIGO detectors preferentially collect data during their local night; it is more than twice as likely to be local midnight than noon when both detectors are operating. We discuss these selection effects and how they impact LIGO's observations and electromagnetic follow-up. Beyond galactic foregrounds associated with seasonal variations, we find that equatorial observatories can access over $80\\%$ of the localization probability, while mid-latitudes will access closer to $70\\%$. Facilities located near the two LIGO sites can obser...

  15. Analysis of Trust-Based Approaches for Web Service Selection

    DEFF Research Database (Denmark)

    Dragoni, Nicola; Miotto, Nicola

    2011-01-01

    The basic tenet of Service-Oriented Computing (SOC) is the possibility of building distributed applications on the Web by using Web services as fundamental building blocks. The proliferation of such services is considered the second wave of evolution in the Internet age, moving the Web from...... a collection of pages to a collections of services. Consensus is growing that this Web service revolution wont eventuate until we resolve trust-related issues. Indeed, the intrinsic openness of the SOC vision makes crucial to locate useful services and recognize them as trustworthy. In this paper we review...... the field of trust-based Web service selection, providing a structured classification of current approaches and highlighting the main limitations of each class and of the overall field....

  16. Development of new concepts for escape windows to minimise cod catches in Norway lobster fisheries

    DEFF Research Database (Denmark)

    Madsen, Niels; Frandsen, Rikke; Holst, René;

    2010-01-01

    particularly on moving the window further back, gaining more stability in the codend to avoid loss of Norway lobster through the window, making a relatively narrow section where the window is located, and testing larger mesh sizes in the window. We designed a four panel sorting section—the sorting box......—where a 300 mm window is placed at the top section at about 3–6 m from the codline. Acoustic release technology was used to avoid catch loss during gear retrieval. Sea trials were conducted in the Skagerrak and Kattegat from a commercial trawler. The sorting box yielded a high reduction of the cod catch......Gear selectivity with regard to cod (Gadus morhua) needs to be improved in the Kattegat and Skagerrak Norway lobster (Nephrops norvegicus) fishery. One way to achieve this goal is to improve the selectivity of an escape window (henceforth window) in the gear. Our gear development focused...

  17. Analysis for Clinical Effect of Virtual Windowing and Poking Reduction Treatment for Schatzker III Tibial Plateau Fracture Based on 3D CT Data

    Directory of Open Access Journals (Sweden)

    Huafeng Zhang

    2015-01-01

    Full Text Available Objective. To explore the applications of preoperative planning and virtual surgery including surgical windowing and elevating reduction and to determine the clinical effects of this technology on the treatment of Schatzker type III tibial plateau fractures. Methods. 32 patients with Schatzker type III tibial plateau fractures were randomised upon their admission to the hospital using a sealed envelope method. Fourteen were treated with preoperative virtual design and assisted operation (virtual group and 18 with direct open reduction and internal fixation (control group. Results. All patients achieved primary incision healing. Compared with control group, virtual groups showed significant advantages in operative time, incision length, and blood loss P<0.001. The virtual surgery was consistent with the actual surgery. Conclusion. The virtual group was better than control group in the treatment of tibial plateau fractures of Schatzker type III, due to shorter operative time, smaller incision length, and lower blood loss. The reconstructed 3D fracture model could be used to preoperatively determine the surgical windowing and elevating reduction method and simulate the operation for Schatzker type III tibial plateau fractures.

  18. Unsupervised Feature Selection Based on the Morisita Index

    Science.gov (United States)

    Golay, Jean; Kanevski, Mikhail

    2016-04-01

    Recent breakthroughs in technology have radically improved our ability to collect and store data. As a consequence, the size of datasets has been increasing rapidly both in terms of number of variables (or features) and number of instances. Since the mechanism of many phenomena is not well known, too many variables are sampled. A lot of them are redundant and contribute to the emergence of three major challenges in data mining: (1) the complexity of result interpretation, (2) the necessity to develop new methods and tools for data processing, (3) the possible reduction in the accuracy of learning algorithms because of the curse of dimensionality. This research deals with a new algorithm for selecting the smallest subset of features conveying all the information of a dataset (i.e. an algorithm for removing redundant features). It is a new version of the Fractal Dimensionality Reduction (FDR) algorithm [1] and it relies on two ideas: (a) In general, data lie on non-linear manifolds of much lower dimension than that of the spaces where they are embedded. (b) The situation describes in (a) is partly due to redundant variables, since they do not contribute to increasing the dimension of manifolds, called Intrinsic Dimension (ID). The suggested algorithm implements these ideas by selecting only the variables influencing the data ID. Unlike the FDR algorithm, it resorts to a recently introduced ID estimator [2] based on the Morisita index of clustering and to a sequential forward search strategy. Consequently, in addition to its ability to capture non-linear dependences, it can deal with large datasets and its implementation is straightforward in any programming environment. Many real world case studies are considered. They are related to environmental pollution and renewable resources. References [1] C. Traina Jr., A.J.M. Traina, L. Wu, C. Faloutsos, Fast feature selection using fractal dimension, in: Proceedings of the XV Brazilian Symposium on Databases, SBBD, pp. 158

  19. 基于窗口边缘梯度势能的人体遮挡多尺度检测算法%Multi-scale Human Detection Based on Window Gradient Potential Energy with Partial Occlusion Handling

    Institute of Scientific and Technical Information of China (English)

    欧阳毅; 张三元; 张引

    2012-01-01

    In order to improve accuracy of the human detection, this paper proposes the conception of the Window edge of the Gradient of Potential Energy (WGPE) and a fast human detection method based on potential energy. By using sparse-dense gradient potential windows set, the detection time of the multi-scale detection can be shortened. Cascading Support Vector Machine (SVM) training using weighted positive and negative samples, the occlusion sample of the human body is weighted to detect the human body under occlusion. Filter positive in the detection window, the algorithm does not require too much computational overhead increases when the detection window is filtered. In the smooth background image, the proposed method compared to the multi-level Histograms of Oriented Gradients (HOG) detection and HOG-LBP (Local Binary Pattern) methods accuracy at the same rate, spents less testing time. Experiments show that the human detection accuracy and efficiency has increased, the case for the human body in partial occlusion detection, the accuracy rate is improved markedly.%为提高对于图像中人体检测的准确率,该文提出窗口边缘梯度势能(Window Gradient Potential Energy,WGPE)的概念和一种基于窗口边缘梯度势能快速人体检测方法.采用稀疏-稠密梯度势能窗口集对人体进行多尺度检测过滤,缩短了检测时间.采用改进后的加权级联支持向量机训练正负样本,将遮挡情况下的人体正样本进行加权划分,以检测遮挡环境下的人体.在对检测窗口进行过滤时,该算法并不需要增加过多的计算开销.在背景较为平滑的图像中,与多尺度面向梯度直方图(HOG)和HOG-LBP(Histograms of Oriented Gradients and Local Binary Pattern)方法相比在相同的准确率下,具有较少的检测时间.实验表明在人体检测的准确率和效率方面有所提高,对于处于半遮挡情况下人体检测,准确率也有明显提高.

  20. Covariance-Based Measurement Selection Criterion for Gaussian-Based Algorithms

    Directory of Open Access Journals (Sweden)

    Fernando A. Auat Cheein

    2013-01-01

    Full Text Available Process modeling by means of Gaussian-based algorithms often suffers from redundant information which usually increases the estimation computational complexity without significantly improving the estimation performance. In this article, a non-arbitrary measurement selection criterion for Gaussian-based algorithms is proposed. The measurement selection criterion is based on the determination of the most significant measurement from both an estimation convergence perspective and the covariance matrix associated with the measurement. The selection criterion is independent from the nature of the measured variable. This criterion is used in conjunction with three Gaussian-based algorithms: the EIF (Extended Information Filter, the EKF (Extended Kalman Filter and the UKF (Unscented Kalman Filter. Nevertheless, the measurement selection criterion shown herein can also be applied to other Gaussian-based algorithms. Although this work is focused on environment modeling, the results shown herein can be applied to other Gaussian-based algorithm implementations. Mathematical descriptions and implementation results that validate the proposal are also included in this work.

  1. Mutual information-based feature selection for radiomics

    Science.gov (United States)

    Oubel, Estanislao; Beaumont, Hubert; Iannessi, Antoine

    2016-03-01

    Background The extraction and analysis of image features (radiomics) is a promising field in the precision medicine era, with applications to prognosis, prediction, and response to treatment quantification. In this work, we present a mutual information - based method for quantifying reproducibility of features, a necessary step for qualification before their inclusion in big data systems. Materials and Methods Ten patients with Non-Small Cell Lung Cancer (NSCLC) lesions were followed over time (7 time points in average) with Computed Tomography (CT). Five observers segmented lesions by using a semi-automatic method and 27 features describing shape and intensity distribution were extracted. Inter-observer reproducibility was assessed by computing the multi-information (MI) of feature changes over time, and the variability of global extrema. Results The highest MI values were obtained for volume-based features (VBF). The lesion mass (M), surface to volume ratio (SVR) and volume (V) presented statistically significant higher values of MI than the rest of features. Within the same VBF group, SVR showed also the lowest variability of extrema. The correlation coefficient (CC) of feature values was unable to make a difference between features. Conclusions MI allowed to discriminate three features (M, SVR, and V) from the rest in a statistically significant manner. This result is consistent with the order obtained when sorting features by increasing values of extrema variability. MI is a promising alternative for selecting features to be considered as surrogate biomarkers in a precision medicine context.

  2. APLIKASI GAME QUIZ ANIMALS BERBASIS WINDOWS 8

    Directory of Open Access Journals (Sweden)

    Yulyani Arifin

    2013-11-01

    Full Text Available Game is currently in great demand by various circles, especially children. Children's interest in the game can be used as a tool to increase childrens intellectuality, i.e. English competence. The purpose of this study is to design an animal-themed quiz game in English language based on Windows 8 operating system, followed by making a game prototype designed. This game is expected to be an exciting educational tool for children in learning English and broadening the knowledge about types of animal. The research is conducted through the stages of game design requirements, game design, evaluation and implementation. Based on the results of the evaluation it is found that thoroughly the game already meets the standards of IMK by Shneiderman and Plaisant (2010. It is good enough as a game-play since it is available at Window Store.

  3. Developing Low-Conductance Window Frames: Capabilities and Limitations of Current Window Heat Transfer Design Tools

    Energy Technology Data Exchange (ETDEWEB)

    Gustavsen, Arild; Arasteh, Dariush; Jelle, Bjorn Petter; Curcija, Charlie; Kohler, Christian

    2008-09-11

    While window frames typically represent 20-30% of the overall window area, their impact on the total window heat transfer rates may be much larger. This effect is even greater in low-conductance (highly insulating) windows that incorporate very low-conductance glazing. Developing low-conductance window frames requires accurate simulation tools for product research and development. Based on a literature review and an evaluation of current methods of modeling heat transfer through window frames, we conclude that current procedures specified in ISO standards are not sufficiently adequate for accurately evaluating heat transfer through the low-conductance frames. We conclude that the near-term priorities for improving the modeling of heat transfer through low-conductance frames are: (1) Add 2D view-factor radiation to standard modeling and examine the current practice of averaging surface emissivity based on area weighting and the process of making an equivalent rectangular frame cavity. (2) Asses 3D radiation effects in frame cavities and develop recommendation for inclusion into the design fenestration tools. (3) Assess existing correlations for convection in vertical cavities using CFD. (4) Study 2D and 3D natural convection heat transfer in frame cavities for cavities that are proven to be deficient from item 3 above. Recommend improved correlations or full CFD modeling into ISO standards and design fenestration tools, if appropriate. (5) Study 3D hardware short-circuits and propose methods to ensure that these effects are incorporated into ratings. (6) Study the heat transfer effects of ventilated frame cavities and propose updated correlations.

  4. Windows Server 2012 vulnerabilities and security

    Directory of Open Access Journals (Sweden)

    Gabriel R. López

    2015-09-01

    Full Text Available This investigation analyses the history of the vulnerabilities of the base system Windows Server 2012 highlighting the most critic vulnerabilities given every 4 months since its creation until the current date of the research. It was organized by the type of vulnerabilities based on the classification of the NIST. Next, given the official vulnerabilities of the system, the authors show how a critical vulnerability is treated by Microsoft in order to countermeasure the security flaw. Then, the authors present the recommended security approaches for Windows Server 2012, which focus on the baseline software given by Microsoft, update, patch and change management, hardening practices and the application of Active Directory Rights Management Services (AD RMS. AD RMS is considered as an important feature since it is able to protect the system even though it is compromised using access lists at a document level. Finally, the investigation of the state of the art related to the security of Windows Server 2012 shows an analysis of solutions given by third parties vendors, which offer security products to secure the base system objective of this study. The recommended solution given by the authors present the security vendor Symantec with its successful features and also characteristics that the authors considered that may have to be improved in future versions of the security solution.

  5. Chalcogenide glass fibers: Optical window tailoring and suitability for bio-chemical sensing

    Science.gov (United States)

    Lucas, Pierre; Coleman, Garrett J.; Jiang, Shibin; Luo, Tao; Yang, Zhiyong

    2015-09-01

    Glassy materials based on chalcogen elements are becoming increasingly prominent in the development of advanced infrared sensors. In particular, infrared fibers constitute a desirable sensing platform due to their high sensitivity and versatile remote collection capabilities for in-situ detection. Tailoring the transparency window of an optical material to the vibrational signature of a target molecule is important for the design of infrared sensor, and particularly for fiber evanescent wave spectroscopy. Here we review the basic principles and recent developments in the fabrication of chalcogenide glass infrared fibers for application as bio-chemical sensors. We emphasize the challenges in designing materials that combine good rheological properties with chemical stability and sufficiently wide optical windows for bio-chemical sensing. The limitation in optical transparency due to higher order overtones of the amorphous network vibrations is established for this family of glasses. It is shown that glasses with wide optical window suffer from higher order overtone absorptions. Compositional engineering with heavy elements such as iodine is shown to widen the optical window but at the cost of lower chemical stability. The optical attenuations of various families of chalcogenide glass fibers are presented and weighed for their applications as chemical sensors. It is then shown that long-wave infrared fibers can be designed to optimize the collection of selective signal from bio-molecules such as cells and tissues. Issues of toxicity and mechanical resistance in the context of bio-sensing are also discussed.

  6. Development of dielectric window to conductor assembly

    Energy Technology Data Exchange (ETDEWEB)

    Heikinheimo, L.; Nuutinen, S.; Taehtinen, S. [VTT Manufacturing Technology, Espoo (Finland). Materials and Structural Integrity

    1998-12-31

    The report summarises the work done by Association Euratom-Tekes in developing manufacturing procedures for vacuum tight ceramic to metal joints and in manufacturing full scale components for the ICRF vacuum window construction. The development started at VTT Manufacturing Technology in 1996 under the Task T238.2 and continued in 1997 under the Underlying Technology tasks. In the design of the components, the following issues were addressed and resolved: (1) The choice of dielectric material; The choice is made as the best compromise among nuclear, mechanical, and thermal properties, but in due consideration of material availability, fabrication issues and response to cyclic loads, (2) Layout and detailed design. The shape of the dielectric window is optimized to minimize electric fields in the dielectric materials; The optimised field distribution is computed in a 2D geometry; The design includes thermal calculation and the cooling layout and includes provision for remote handling replacement in one block, (3) Metal/dielectric joining. The joining technology is selected and justified. Joining tests on material selections to verify the applicability has been done, the validation of the design pre-prototype tests have been carried out selectively. The steps for the manufacture of these full scale components are described in the report with the appropriate concluding remarks and suggestions for the further actions. (orig.)

  7. Free-Breathing Cardiac MR with a Fixed Navigator Efficiency Using Adaptive Gating Window Size

    OpenAIRE

    Moghari, Mehdi H; Chan, Raymond H.; Hong-Zohlman, Susie N.; Shaw, Jaime L.; Goepfert, Lois A; Kissinger, Kraig V.; Goddu, Beth; Josephson, Mark E; Manning, Warren J; Nezafat, Reza

    2012-01-01

    A respiratory navigator with a fixed acceptance gating window is commonly used to reduce respiratory motion artifacts in cardiac MR. This approach prolongs the scan time and occasionally yields an incomplete dataset due to respiratory drifts. To address this issue, we propose an adaptive gating window approach in which the size and position of the gating window are changed adaptively during the acquisition based on the individual’s breathing pattern. The adaptive gating window tracks the brea...

  8. Effect of coated window on electron temperature and density evaluation in JT-60 Thomson scattering diagnostic

    International Nuclear Information System (INIS)

    The viewing window of Thomson scattering diagnostic is blurred by discharge cleaning and so on. The transmission of the coated window is then reduced with decreasing wavelength. This wavelength-dependent transmission affects the evaluation of electron temperature and density in Thomson scattering measurement. In this report, based on the transmission of coated windows measured for 4 periods of JT-60 experiments (1987-1989), the effect of coated window on electron temperature and density evaluation is investigated quantitatively. (author)

  9. Towards Identify Selective Antibacterial Peptides Based on Abstracts Meaning

    Science.gov (United States)

    Barbosa-Santillán, Liliana I.; Sánchez-Escobar, Juan J.; Calixto-Romo, M. Angeles; Barbosa-Santillán, Luis F.

    2016-01-01

    We present an Identify Selective Antibacterial Peptides (ISAP) approach based on abstracts meaning. Laboratories and researchers have significantly increased the report of their discoveries related to antibacterial peptides in primary publications. It is important to find antibacterial peptides that have been reported in primary publications because they can produce antibiotics of different generations that attack and destroy the bacteria. Unfortunately, researchers used heterogeneous forms of natural language to describe their discoveries (sometimes without the sequence of the peptides). Thus, we propose that learning the words meaning instead of the antibacterial peptides sequence is possible to identify and predict antibacterial peptides reported in the PubMed engine. The ISAP approach consists of two stages: training and discovering. ISAP founds that the 35% of the abstracts sample had antibacterial peptides and we tested in the updated Antimicrobial Peptide Database 2 (APD2). ISAP predicted that 45% of the abstracts had antibacterial peptides. That is, ISAP found that 810 antibacterial peptides were not classified like that, so they are not reported in APD2. As a result, this new search tool would complement the APD2 with a set of peptides that are candidates to be antibacterial. Finally, 20% of the abstracts were not semantic related to APD2. PMID:27366202

  10. Moldless PEGDA-Based Optoelectrofluidic Platform for Microparticle Selection

    Directory of Open Access Journals (Sweden)

    Shih-Mo Yang

    2011-01-01

    Full Text Available This paper reports on an optoelectrofluidic platform which consists of the organic photoconductive material, titanium oxide phthalocyanine (TiOPc, and the photocrosslinkable polymer, poly (ethylene glycol diacrylate (PEGDA. TiOPc simplifies the fabrication process of the optoelectronic chip due to requiring only a single spin-coating step. PEGDA is applied to embed the moldless PEGDA-based microchannel between the top ITO glass and the bottom TiOPc substrate. A real-time control interface via a touch panel screen is utilized to select the target 15 μm polystyrene particles. When the microparticles flow to an illuminating light bar, which is oblique to the microfluidic flow path, the lateral driving force diverts the microparticles. Two light patterns, the switching oblique light bar and the optoelectronic ladder phenomenon, are designed to demonstrate the features. This work integrating the new material design, TiOPc and PEGDA, and the ability of mobile microparticle manipulation demonstrates the potential of optoelectronic approach.

  11. Feature-based attention across saccades and immediate postsaccadic selection.

    Science.gov (United States)

    Eymond, Cécile; Cavanagh, Patrick; Collins, Thérèse

    2016-07-01

    Before each eye movement, attentional resources are drawn to the saccade goal. This saccade-related attention is known to be spatial in nature, and in this study we asked whether it also evokes any feature selectivity that is maintained across the saccade. After a saccade toward a colored target, participants performed a postsaccadic feature search on an array displayed at landing. The saccade target either had the same color as the search target in the postsaccadic array (congruent trials) or a different color (incongruent or neutral trials). Our results show that the color of the saccade target did not prime the subsequent feature search. This suggests that "landmark search", the process of searching for the saccade target once the eye lands (Deubel in Visual Cognition, 11, 173-202, 2004), may not involve the attentional mechanisms that underlie feature search. We also analyzed intertrial effects and observed priming of pop-out (Maljkovic & Nakayama in Memory & Cognition, 22, 657-672, 1994) for the postsaccadic feature search: the detection of the color singleton became faster when its color was repeated on successive trials. However, search performance revealed no effect of congruency between the saccade and search targets, either within or across trials, suggesting that the priming of pop-out is specific to target repetitions within the same task and is not seen for repetitions across tasks. Our results support a dissociation between feature-based attention and the attentional mechanisms associated with eye movement programming. PMID:27084700

  12. Bayesian predictive modeling for genomic based personalized treatment selection.

    Science.gov (United States)

    Ma, Junsheng; Stingo, Francesco C; Hobbs, Brian P

    2016-06-01

    Efforts to personalize medicine in oncology have been limited by reductive characterizations of the intrinsically complex underlying biological phenomena. Future advances in personalized medicine will rely on molecular signatures that derive from synthesis of multifarious interdependent molecular quantities requiring robust quantitative methods. However, highly parameterized statistical models when applied in these settings often require a prohibitively large database and are sensitive to proper characterizations of the treatment-by-covariate interactions, which in practice are difficult to specify and may be limited by generalized linear models. In this article, we present a Bayesian predictive framework that enables the integration of a high-dimensional set of genomic features with clinical responses and treatment histories of historical patients, providing a probabilistic basis for using the clinical and molecular information to personalize therapy for future patients. Our work represents one of the first attempts to define personalized treatment assignment rules based on large-scale genomic data. We use actual gene expression data acquired from The Cancer Genome Atlas in the settings of leukemia and glioma to explore the statistical properties of our proposed Bayesian approach for personalizing treatment selection. The method is shown to yield considerable improvements in predictive accuracy when compared to penalized regression approaches. PMID:26575856

  13. Towards Identify Selective Antibacterial Peptides Based on Abstracts Meaning.

    Science.gov (United States)

    Barbosa-Santillán, Liliana I; Sánchez-Escobar, Juan J; Calixto-Romo, M Angeles; Barbosa-Santillán, Luis F

    2016-01-01

    We present an Identify Selective Antibacterial Peptides (ISAP) approach based on abstracts meaning. Laboratories and researchers have significantly increased the report of their discoveries related to antibacterial peptides in primary publications. It is important to find antibacterial peptides that have been reported in primary publications because they can produce antibiotics of different generations that attack and destroy the bacteria. Unfortunately, researchers used heterogeneous forms of natural language to describe their discoveries (sometimes without the sequence of the peptides). Thus, we propose that learning the words meaning instead of the antibacterial peptides sequence is possible to identify and predict antibacterial peptides reported in the PubMed engine. The ISAP approach consists of two stages: training and discovering. ISAP founds that the 35% of the abstracts sample had antibacterial peptides and we tested in the updated Antimicrobial Peptide Database 2 (APD2). ISAP predicted that 45% of the abstracts had antibacterial peptides. That is, ISAP found that 810 antibacterial peptides were not classified like that, so they are not reported in APD2. As a result, this new search tool would complement the APD2 with a set of peptides that are candidates to be antibacterial. Finally, 20% of the abstracts were not semantic related to APD2. PMID:27366202

  14. Terahertz wave filter based on frequency-selective surface structure

    Science.gov (United States)

    Sun, Chao; Li, Jiu-sheng

    2012-03-01

    Terahertz radiations, which refer to the frequencies from 100GHz to 10THz, lie in the frequency gap between the infrared and microwave, have received considerable attention during the past decades. Due to their special prosperties, THz radiations have been applied in many fields such as gases, semiconductors, explosives materials, and environment pollutants. The technique is based on recording the time dependence of the electric field of a short electromagnetic pulse transmitted through a sample. The ratio of the Fourier transforms of the data recorded with and without the sample yields the complex transmission coefficient of the sample in the frequency domain. The absorption coefficient and the refractive index of the material studied are directly related to the amplitude and phase respectively of the transmitted field. Terahertz wave filter, a frequency-selective surface structure, has been characterized by terahertz time-domain spectroscopy in the region from 0.1 to 3THz. We have compared THz-TDS measurement and calculation results of the mode-matching theory of the terahertz wave filter, and find that the two data sets agree very closely. The peak of the transmittance of about 90.5%occurs at 0.45THz for the first case and the peak of the transmittance of about 89.4% occurs at 0.79THz for the second case.

  15. Sol-gel based sensor for selective formaldehyde determination.

    Science.gov (United States)

    Bunkoed, Opas; Davis, Frank; Kanatharana, Proespichaya; Thavarungkul, Panote; Higson, Séamus P J

    2010-02-01

    We report the development of transparent sol-gels with entrapped sensitive and selective reagents for the detection of formaldehyde. The sampling method is based on the adsorption of formaldehyde from the air and reaction with beta-diketones (for example acetylacetone) in a sol-gel matrix to produce a yellow product, lutidine, which was detected directly. The proposed method does not require preparation of samples prior to analysis and allows both screening by visual detection and quantitative measurement by simple spectrophotometry. The detection limit of 0.03 ppmv formaldehyde is reported which is lower than the maximum exposure concentrations recommended by both the World Health Organisation (WHO) and the Occupational Safety and Health Administration (OSHA). This sampling method was found to give good reproducibility, the relative standard deviation at 0.2 and 1 ppmv being 6.3% and 4.6%, respectively. Other carbonyl compounds i.e. acetaldehyde, benzaldehyde, acetone and butanone do not interfere with this analytical approach. Results are provided for the determination of formaldehyde in indoor air.

  16. 基于Windows的华中世纪星数控系统PLC编程系统设计%Development of PLC Programming System of Huazhong Shijixing Numerical Control System Based on Windows

    Institute of Scientific and Technical Information of China (English)

    韩伟; 宋明伟; 魏志强; 侯巧红

    2011-01-01

    The "inside installing" type PLC is used in Huazhong Shijixing NC system which is programmed in DOS environment by C language. This kind of programming method is not convenient and quick as comparing with that in Windows operating system. The technical level of demand for programming staff is higher by using C language compared with traditional ladder-diagram programming, and use promotion is inconvenient. Aiming at these issues, the PLC programming system for NC system was developed based on Windows operating environment. The overall design of the programming system and the design of ladder diagram components base classes were introduced.%华中世纪星数控系统采用“内装型”PLC,在DOS环境下使用C语言对其进行编程,这种编程方法没有采用Windows操作系统的方便和快捷,而且使用C语言编程同使用传统的梯形图编程相比,对编程人员的技术水平要求高,不便推广使用.针对该问题,开发基于Windows操作环境的数控系统PLC编程系统,主要介绍该编程系统的整体设计及梯形图元件基类的设计.

  17. Efficient Adjustable Reflectivity Smart Window

    Energy Technology Data Exchange (ETDEWEB)

    D. Morgan Tench

    2005-12-01

    This project addressed the key technical issues for development of an efficient smart window based on reversible electrochemical transfer of silver between a mirror electrode and a localized counter electrode. Effort to provide uniform switching over large areas focused on use of a resistive transparent electrode innerlayer to increase the interelectrode resistance. An effective edge seal was developed in collaboration with adhesive suppliers and an electrochromic device manufacturer. Work to provide a manufacturable counter electrode focused on fabricating a dot matrix electrode without photolithography by electrodeposition of Pt nuclei on inherent active sites on a transparent oxide conductor. An alternative counter electrode based on a conducting polymer and an ionic liquid electrolyte was also investigated. Work in all of these areas was successful. Sputtered large-bandgap oxide innerlayers sandwiched between conductive indium tin oxide (ITO) layers were shown to provide sufficient cross-layer resistance (>300 ohm/cm{sup 2}) without significantly affecting the electrochemical properties of the ITO overlayer. Two edge seal epoxies, one procured from an epoxy manufacturer and one provided by an electrochromic device manufacturer in finished seals, were shown to be effective barriers against oxygen intrusion up to 80 C. The optimum density of nuclei for the dot matrix counter electrode was attained without use of photolithography by electrodeposition from a commercial alkaline platinum plating bath. Silver loss issues for cells with dot matrix electrodes were successfully addressed by purifying the electrolyte and adjusting the cell cycling parameters. More than 30K cycles were demonstrated for a REM cell (30-cm square) with a dot matrix counter electrode. Larger cells (30-cm square) were successfully fabricated but could not be cycled since the nucleation layers (provided by an outside supplier) were defective so that mirror deposits could not be produced.

  18. 拥抱Windows 10

    Institute of Scientific and Technical Information of China (English)

    王春海

    2015-01-01

    微软新一代操作系统Windows10已正式发布,新系统统一PC、平板、手机和Xbox等多个平台,在性能、安全性和用户体验方面都有全面提升,并对系统底层、开始菜单、操作中心等做出多项改进,包括更智慧的Cortana语音助理、全新多桌面体验和新的开始选单等。除此之外,Windows10还加强了安全性的设计,Windows10的内核版本直接从Windows8.1的6.4提升到了10.0,操作系统的底层架构和安全特性发生了多项重大变化。在初次使用Windows10的时候,可以看到“手机、平板”的风格到处都是。

  19. Windows Server 2012 R2 administrator cookbook

    CERN Document Server

    Krause, Jordan

    2015-01-01

    This book is intended for system administrators and IT professionals with experience in Windows Server 2008 or Windows Server 2012 environments who are looking to acquire the skills and knowledge necessary to manage and maintain the core infrastructure required for a Windows Server 2012 and Windows Server 2012 R2 environment.

  20. 基于GDCF的竞争窗口快速增加退避算法%GDCF based backoff algorithm with contention window fast increasing

    Institute of Scientific and Technical Information of China (English)

    蔡保国; 缪学宁

    2012-01-01

    The performance of a backoff algorithm is determined by its adjustment strategy of Contention Window (CW) to a great extent. Aiming at the deficiency of fixed methods for adjusting CW when node collisions occur, continuous collision times of nodes are regarded as the indication of measuring how severe channel contention is and introduced into the adjustment strategy of CW, and on the basis of GDCF an adaptive backoff algorithm with CW Fast Increasing (FI-GDCF) is proposed, where a node will adjust its CW according to the exponential law of its continuous collision times. Theoretical analysis and simulation results show that collision probability, normalized network throughput and average packet access delay of FI-GDCF algorithm can all obtain improvement with varying degrees under two access modes and especially basic access mode, by contrast with BEB and GDCF algorithms.%竞争窗口(Contention Window,CW)的调整策略在很大程度上决定了退避算法的性能.针对节点碰撞时CW固定调节方式存在的不足,将节点的连续碰撞次数作为衡量信道竞争激烈程度的标志并将其引入到CW的调整策略中,在GDCF基础上提出一种具有自适应特点的CW快速增加退避算法(Fast Increasing GDCF,FI-GDCF),节点碰撞时按照其连续碰撞次数的指数律调整CW大小.理论分析和仿真结果表明,与BEB和GDCF算法相比,FI-GDCF算法在两种接入模式尤其是基本接入模式下,其碰撞概率、归一化网络吞吐量以及分组平均接入时延等性能均可获得不同程度的提升.