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Miyazawa M Zeng P Iso N Hirata T 《IEEE transactions on pattern analysis and machine intelligence》2006,28(7):1127-1134
The Euclidean distance transform is one of the fundamental operations in image processing. It has been widely used in computer vision, pattern recognition, morphological filtering, and robotics. This paper proposes a systolic algorithm that computes the Euclidean distance map of an N /spl times/ N binary image in 3N clocks on 2N/sup 2/ processing cells. The algorithm is designed so that the hardware resources are reduced; especially no multipliers are used and, thus, it facilitates VLSI implementation. 相似文献
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Koichiro Hirano Masafumi Fukuda Mikio Takano Yoshio Yamazaki Toshiya Muto Sakae Araki Nobuhiro Terunuma Masao Kuriki Mitsuo Akemoto Hitoshi Hayano Junji Urakawa 《Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment》2006,560(2):233-239
A multi-bunch photo-cathode RF gun system has been developed as an electron source for the production of intense quasi-monochromatic X-rays based on inverse Compton scattering. The desired multi-bunch beam is 100 bunches/pulse with a total charge of 500 nC and a bunch spacing of 2.8 ns. We modified the gun cavity of a ‘BNL-type IV’ RF gun to allow a CsTe cathode plug in the end plate. The system uses a four-dipole chicane beam line to allow the injection of laser light normal to the cathode surface. We compensate the gun cavity beam loading caused by the high-intensity multi-bunch electron beam by injecting the laser pulse before RF power has filled the cavity. We have achieved a total intensity of 220 nC in 100 bunches with a bunch-to-bunch energy spread under 1.3% (peak-to-peak). This paper concentrates on experiments to generate the high-intensity multi-bunch beam with compensation of the bunch-to-bunch energy spread due to heavy beam loading. 相似文献
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Kazuaki Mita Shu Yamaguchi Masafumi Maeda 《Metallurgical and Materials Transactions B》2004,35(3):487-492
Most galvanized steel sheets are produced by a continuous galvanizing line. Some of the operations include a subsequent heat
treatment termed galvannealing to form intermetallic phases on the surface. These galvanizing reactions are essentially regarded
as “making intermetallic compounds” in the Fe-Zn-M system. This makes it important to know the thermodynamic properties of
the system for any detailed discussion on the formation of these intermetallics; however, experimental difficulties have limited
the number of studies. In the present study, two-phase regions of these intermetallics were examined, and the following two-phase
mixtures were prepared at 723 K: Fe(α)+Γ, Γ,+Γ1, Γ1+δ
1+ζ. The double cell-type Knudsen mass spectrometer system was developed and employed, in which two sets of Knudsen cells were
installed in the same cell holder. The reference material (pure zinc) was placed in one cell and a sample in the other. The
cell holder was rotated to the reference and sample positions to measure zinc vapor effused from two cells by a quadrupole
mass spectrometer. Material containing the two phases was placed in a Knudsen-type effusion cell and the mass spectrum studied
to evaluate the vapor pressure of zinc. The activity of zinc in the intermetallics was determined by comparing the intensity
from pure zinc and that from intermetallics. Results for Fe(α)+Γ were 0.46 to 0.48; for Γ+Γ1, 0.51 to 0.54; for Γ1+δ
1, 0.62 to 0.66; and for δ
1+ζ, 0.80 to 0.83, between the temperatures of 623 and 698 K. 相似文献
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Hitoshi Iyatomi Author Vitae Masafumi Hagiwara Author Vitae 《Pattern recognition》2004,37(10):2049-2057
An adaptive fuzzy inference neural network (AFINN) is proposed in this paper. It has self-construction ability, parameter estimation ability and rule extraction ability. The structure of AFINN is formed by the following four phases: (1) initial rule creation, (2) selection of important input elements, (3) identification of the network structure and (4) parameter estimation using LMS (least-mean square) algorithm. When the number of input dimension is large, the conventional fuzzy systems often cannot handle the task correctly because the degree of each rule becomes too small. AFINN solves such a problem by modification of the learning and inference algorithm. 相似文献
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Dr. Masakazu Hachisu Dr. Akira Seko Dr. Shusaku Daikoku Dr. Yoichi Takeda Dr. Masafumi Sakono Dr. Yukishige Ito 《Chembiochem : a European journal of chemical biology》2016,17(4):300-303
In the endoplasmic reticulum (ER), nascent glycoproteins that have not acquired the native conformation are either repaired or sorted for degradation by specific quality‐control systems composed by various proteins. Among them, UDP‐glucose:glycoprotein glucosyltransferase (UGGT) serves as a folding sensor in the ER. However, the molecular mechanism of its recognition remains obscure. This study used pseudo‐misfolded glycoproteins, comprising a modified dihydrofolate reductase with artificial pyrene–cysteine moiety on the protein surface (pDHFR) and Man9GlcNAc2‐methotrexate (M9‐MTX). All five M9‐MTX/pDHFR complexes, with a pyrene group at different positions, were found to be good substrates of UGGT, irrespective of the site of pyrene modification. These results suggest UGGT's mode of substrate recognition is fuzzy, thus allowing various glycoproteins to be accommodated in the folding cycle. 相似文献