Mitsubishi Electric (Germany)

Article Design galleries: a general approach to setting parameters for computer graphics and animation Share on Authors: J. Marks MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , B. Andalman Harvard Univ. Harvard Univ.View Profile , P. A. Beardsley MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , W. Freeman MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , S. Gibson MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , J. Hodgins Georgia Tech. Georgia Tech.View Profile , T. Kang CMU CMUView Profile , B. Mirtich MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , H. Pfister MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , W. Ruml MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MA MERL - A Mitsubishi Electric Research Laboratory, 201 Broadway, Cambridge, MAView Profile , K. Ryall Harvard Univ. Harvard Univ.View Profile , J. Seims Univ. of Washington Univ. of WashingtonView Profile , S. Shieber Harvard Univ. Harvard Univ.View Profile Authors Info & Claims SIGGRAPH '97: Proceedings of the 24th annual conference on Computer graphics and interactive techniquesAugust 1997 Pages 389–400https://doi.org/10.1145/258734.258887Online:03 August 1997Publication History 346citation2,992DownloadsMetricsTotal Citations346Total Downloads2,992Last 12 Months156Last 6 weeks16 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access

The defining characteristic of a networked control system (NCS) is having a feedback loop that passes through a local area computer network. Our two-step design approach includes using standard control methodologies and choosing the network protocol and bandwidth in order to ensure important closed-loop properties are preserved when a computer network is inserted into the feedback loop. For sufficiently high data rates, global exponential stability is preserved. Simulations are included to demonstrate the theoretical result.

We propose a mathematical formulation for the notion of optimal projective cluster, starting from natural requirements on the density of points in subspaces. This allows us to develop a Monte Carlo algorithm for iteratively computing projective clusters. We prove that the computed clusters are good with high probability. We implemented a modified version of the algorithm, using heuristics to speed up computation. Our extensive experiments show that our method is significantly more accurate than previous approaches. In particular, we use our techniques to build a classifier for detecting rotated human faces in cluttered images.

Thin films of (Ba 0.65 Sr 0.35 )TiO 3 (BST) have been prepared by an rf-sputtering method at substrate temperatures of 500 to 700°C. The dielectric constant of these films ranges from 190 to 700 at room temperature. This value changes with the grain size rather than the film thickness. The dielectric constant of about 300 and leakage current density of about 1×10 -8 A/cm 2 are obtained in the 65-nm-thick film deposited at a substrate temperature of 600°C. This shows the BST film can be applied to dielectrics of dynamic random access memory (DRAM) capacitors.

This paper presents an improved algorithm for estimating pulse repetition intervals (PRIs) of an interleaved pulse train which consists of several independent radar signals with different PRIs. The original version of this algorithm is a complex-valued autocorrelation-like integral, which leads to a kind of PRI spectrum wherein the locations of the spectral peaks indicate the PRI values. The original algorithm, however, has a serious drawback in that it is vulnerable to timing jitter (PRI jitter). We analyze the cause of this vulnerability and propose an improved algorithm using overlapped PRI bins which have shifting time origins. The improved algorithm has proven to be quite effective in obtaining the PRI spectrum for jittered pulse trains, which enables detection of mean PRIs by thresholding.

Suppressor of cytokine signaling-1 (SOCS1) was identified as the negative regulator of Janus kinase (JAK) and signal transducer and activator of transcription (STAT) signal transduction pathway. However, the kinetics and control mechanism of the pathway have not yet been fully understood. We have developed the computer simulation of the JAK/STAT pathway. Without nuclear phosphatase, SOCS1's binding to JAK did not cause the decrease in nuclear phosphorylated STAT1. However, without SH2 domain-containing tyrosine phosphatase 2 (SHP-2) or cytoplasmic phosphatase, it did. So nuclear phosphatase is considered to be the most important in this system. By changing parameters of the model, dynamical characteristics and control mechanism were investigated.

This paper describes the system outline and the operating results of a new type of 20MVA Static VAR Generator (SVG), which is already in operation in electric power field since January of 1980. This SVG consists of force-commutated inverters of the voltage source and can be operated in both, inductive and capacitive modes, by simple control of the output voltage of the inverter. Special emphasis is placed on the system outline, electrical designing features and the operating results which coincide with the theoretical analysis.

People can understand complex auditory and visual information, often using one to disambiguate the other. Automated analysis, even at a lowlevel, faces severe challenges, including the lack of accurate statistical models for the signals, and their high-dimensionality and varied sampling rates. Previous approaches [6] assumed simple parametric models for the joint distribution which, while tractable, cannot capture the complex signal relationships. We learn the joint distribution of the visual and auditory signals using a non-parametric approach. First, we project the data into a maximally informative, low-dimensional subspace, suitable for density estimation. We then model the complicated stochastic relationships between the signals using a nonparametric density estimator. These learned densities allow processing across signal modalities. We demonstrate, on synthetic and real signals, localization in video of the face that is speaking in audio, and, conversely, audio enhan...

A VHF Doppler radar with an active phased‐array antenna system, called the Equatorial Atmosphere Radar (EAR), was established recently at the equator near Bukittinggi, West Sumatra, Indonesia (0.20°S, 100.32°E, 865 m above sea level). The EAR is a large monostatic radar which operates at 47.0 MHz with peak output power of 100 kW. The EAR uses a circular antenna array, approximately 110 m in diameter, which consists of 560 three‐element Yagi antennas. Each antenna is driven by a solid‐state transmitter‐receiver module. This system configuration allows the antenna beam to be steered electronically up to 5,000 times per second. The scientific objective of the EAR is to advance knowledge of dynamical and electrodynamical coupling processes in the equatorial atmosphere from the near‐surface region to the upper atmosphere. The equatorial atmosphere over Indonesia is considered to play an important role in global change of the Earth's atmosphere. This paper presents the system description of the EAR, including observational results of the equatorial atmosphere made for the first time with altitude resolution of 75–150 m.

Abstract The extended finite element method (X‐FEM) proposed by Belytschko et al. ( International Journal for Numerical Methods in Engineering 1999; 45 : 602; 1999; 46 : 131; 2001; 50 : 993) uses interpolation functions based on the concept of partition of unity, and considers the asymptotic solution and the discontinuity of displacement fields near a crack independently of the finite element mesh. This paper describes the application of X‐FEM to stress analyses of structures containing interface cracks between dissimilar materials. In X‐FEM, an interface crack can be modelled by locally changing an interpolation function in the element near a crack. The energy release rate should be separated into individual stress intensity factors, K 1 and K 2 , because the stress field around the interface crack has mixed modes coupled with mode‐I and mode‐II. For this purpose, various evaluation methods used in conjunction with numerical methods such as FEM and BEM are reviewed. These methods are examined in numerical examples of elastostatic analyses of structures containing interface cracks using X‐FEM. The numerical results show that X‐FEM is an effective method for performing stress analyses and evaluating stress intensity factors in problems related to bi‐material fractures. Copyright © 2003 John Wiley & Sons, Ltd.

The optical absorption and emission spectra of several ZnS:Mn crystals (0.07 to 1.0 mole%) were obtained at 4.2 and 77\ifmmode^\circ\else\textdegree\fi{}K. Fine structure was observed in all bands. The predominant structure was identified in terms of phonon emission coupled to one electronic transition in each band. Zero-phonon lines were found at 17 891, 19 683, 21 237, 22 638, and 25 297 ${\mathrm{cm}}^{\ensuremath{-}1}$. They should correspond to transitions between some levels of the cubic crystalline field---terms such as $^{6}A_{1}\ensuremath{\rightarrow}^{4}T_{1}$, $^{6}A_{1}\ensuremath{\rightarrow}^{4}T_{2}$, $^{6}A_{1}\ensuremath{\rightarrow}^{4}E$, $^{6}A_{1}\ensuremath{\rightarrow}^{4}A_{1}$, etc. Principal phonons participating are of energies of about 86, (183,263), 298, and 340 ${\mathrm{cm}}^{\ensuremath{-}1}$. Possible mode assignments are pointed out. In conclusion, we suggest that the usually observed widths and shape of manganese bands are due predominantly to phonon coupling.

As an alternative to the tracking-based approaches that heavily depend on accurate detection of moving objects, which often fail for crowded scenarios, we present a pixelwise method that employs dual foregrounds to extract temporally static image regions. Depending on the application, these regions indicate objects that do not constitute the original background but were brought into the scene at a subsequent time, such as abandoned and removed items, illegally parked vehicles. We construct separate long- and short-term backgrounds that are implemented as pixelwise multivariate Gaussian models. Background parameters are adapted online using a Bayesian update mechanism imposed at different learning rates. By comparing each frame with these models, we estimate two foregrounds. We infer an evidence score at each pixel by applying a set of hypotheses on the foreground responses, and then aggregate the evidence in time to provide temporal consistency. Unlike optical flow-based approaches that smear boundaries, our method can accurately segment out objects even if they are fully occluded. It does not require on-site training to compensate for particular imaging conditions. While having a low-computational load, it readily lends itself to parallelization if further speed improvement is necessary.

We construct an ${\mathrm{SU}(3)}_{L}\ifmmode\times\else\texttimes\fi{}{U(1)}_{N}$ gauge model based on an ${S}_{2L}$ permutation symmetry for left-handed $\ensuremath{\mu}$ and $\ensuremath{\tau}$ families, which provides the almost maximal atmospheric neutrino mixing and the large solar neutrino mixing of the large mixing angle type. Neutrinos acquire one-loop radiative masses induced by the radiative mechanism of the Zee type as well as tree level masses induced by the type II seesaw mechanism utilizing interactions of lepton triplets with an $\mathrm{SU}(3)$-sextet scalar. The atmospheric neutrino mixing controlled by the tree-level and radiative masses turns out to be almost maximal owing to the presence of ${S}_{2L}$ supplemented by a ${Z}_{4}$ discrete symmetry. These symmetries ensure the near equality between the ${\ensuremath{\nu}}_{e}\ensuremath{-}{\ensuremath{\nu}}_{\ensuremath{\mu}}$ and ${\ensuremath{\nu}}_{e}\ensuremath{-}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ radiative masses dominated by contributions from heavy leptons contained in the third members of lepton triplets, whose Yukawa interactions conserve ${S}_{2L}$ even after the spontaneous breaking. The solar neutrino mixing controlled by radiative masses, including a ${\ensuremath{\nu}}_{\ensuremath{\mu}}\ensuremath{-}{\ensuremath{\nu}}_{\ensuremath{\tau}}$ mass, which are taken to be of similar order, turns out to be described by large solar neutrino mixing angles.

Classification algorithms are difficult to apply to sequential examples because there is a vast number of potentially useful features for describing each example. Past work on feature selection has focused on searching the space of all subsets of features, which is intractable for large feature sets. We adapt sequence mining techniques to aEi as a preprocessor to select features for standard classification algorithms such as Naive Bayes and Winnow. Our experiments on three different datasets show that the features produced by our algorithm improve classification accuracy by lo-50%,

Article Free Access Share on COLLAGEN: when agents collaborate with people Authors: Charles Rich MERL-A Mitsubishi Electric, Reserch Laboratory, 201 Broadway, Cambridge, MA MERL-A Mitsubishi Electric, Reserch Laboratory, 201 Broadway, Cambridge, MAView Profile , Candace L. Sidner Lotus Development Corporation, 55 Cambridge Parkway, Cambridge, MA Lotus Development Corporation, 55 Cambridge Parkway, Cambridge, MAView Profile Authors Info & Claims AGENTS '97: Proceedings of the first international conference on Autonomous agentsFebruary 1997Pages 284–291https://doi.org/10.1145/267658.267730Published:08 February 1997Publication History 85citation660DownloadsMetricsTotal Citations85Total Downloads660Last 12 Months72Last 6 weeks15 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF

We present a method that estimates graspability measures on a single depth map for grasping objects randomly placed in a bin. Our method represents a gripper model by using two mask images, one describing a contact region that should be filled by a target object for stable grasping, and the other describing a collision region that should not be filled by other objects to avoid collisions during grasping. The graspability measure is computed by convolving the mask images with binarized depth maps, which are thresholded differently in each region according to the minimum height of the 3D points in the region and the length of the gripper. Our method does not assume any 3-D model of objects, thus applicable to general objects. Our representation of the gripper model using the two mask images is also applicable to general grippers, such as multi-finger and vacuum grippers. We apply our method to bin picking of piled objects using a robot arm and demonstrate fast pick-and-place operations for various industrial objects.

This paper describes a technique for minimizing the detent force using the finite element method. The detent force of the whole stator core is the total of two magnetic forces arising at both side edges of a stator core. Computed results show the phase difference between the two magnetic forces. Therefore, we can cancel out the two forces by adjusting a stator length to minimize the detent force. The stator with the smooth formed edge shape is also contrived to reduce the detent force in the practical use. The detent force of this model is successfully minimized by proposed method.

A method for reactive power planning is presented that it finds an optimal solution for both allocation and operation planning in large systems using linear programming (LP). The method utilizes calculated linear sensitivities including active power and voltage phase angle in the formulation. Although the overall method includes these relations, the number of constraints and variables are not augmented in its first procedure, APPROACH-1. Its second procedure, APPROACH-2, overcomes numerical problems caused by a dense constraint matrix. This is achieved by retaining untouched sparse sensitivities in the constraint matrix and by eliminating any calculations related to the inverse matrix. The results of applying this method to a practical 224-bus system and the IEEE-30 bus system verify its robustness and fast convergence.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

Figure 1: Shaded, volume rendered spheres stored with two values per voxel: a value indicating the distance to the closest surface point; and a binary intensity value. The sphere in a) has radius 30 voxels and is stored in an array of size. The spheres in b), c), and d) have radii 3 voxels, 2 voxels and 1.5 voxels respectively and are stored in arrays of size. The surface normal used in surface shading was calculated using a 6-point central difference operator on the distance values. Remarkably smooth shading can be achieved for these low resolution data volumes because the function of the distance-to-closest surface varies smoothly across surfaces. (See color plate.) High quality rendering and physics-based modeling in volume graphics have been limited because intensity-based volumetric data do not represent surfaces well. High spatial frequencies due to abrupt intensity changes at object surfaces result in jagged or terraced surfaces in rendered images. The use of a distance-to-closestsurface function to encode object surfaces is proposed. This function varies smoothly across surfaces and hence can be accurately reconstructed from sampled data. The zero-value iso-surface of the distance map yields the object surface and the derivative of the distance map yields the surface normal. Examples of rendered images are presented along with a new method for calculating distance maps from sampled binary data.

DC excitation of transformers due to geomagnetically induced currents was studied by model experiments. First, differences in the DC excitation phenomenon due to the iron core structure were studied using three typical small-scale models. The results verified that single-phase three-legged cores were most susceptible and three-phase three-legged cores least susceptible to such excitation effects. Secondly, the local heating due to DC excitation was quantitatively assessed using large-scale core form and shell form models with the most susceptible single-phase three-legged cores. The results demonstrated that the maximum temperature rise was approximately 110/spl deg/C due to the GIC (200 A/3 phases).< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>