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Test Generation and Design-for-Testability Based on Acyclic Structure with Hold Registers

湖南大学学报（自然科学版） 2000年第S2期27卷 1-10页

作者： Tomoo Inoue Debesh Kumar Das Chiiho Sano takahiro mihara Hideo Fujiwara Faculty of Information Sciences Hiroshima City University Hiroshima 731-3194 Japan Computer Science and Engineering Department Jadavpur niversity Calcutta-700 032 India Graduate School of Information Science Nara Institute of Science and Technology Nara 630-0101 Japan Mitsubishi Electronic Control Software Corporation Kobe 652-0871Japan 不详

We present a method of test generation for acyclic sequential circuits with hold registers. A complete (100% fault efficiency) test sequence for an acyclic sequential circuit can be obtained by applying a combinational test generator to all the maximal time-expansion models (TEMs) of the circuit. We propose a class of acyclic sequential circuits for which the number of maximal TEMs is one, i.e, the maximum TEM exists. For a circuit in the class, test generation can be performed by using only the maximum TEM. The proposed class of sequential circuits with the maximum TEM properly includes several known classes of acyclic sequential circuits such as balanced structures and acyclic sequential circuits without hold registers for which test generation can be also performed by using a combinational test generator. Therefore, in general, the hardware overhead for partial scan based on the proposed structure is smaller than that based on balanced or acyclic sequential structure without hold registers.

关键词： acyclic sequential circuits combinational test generation hold registers maximum time-expansion model partial scan

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Rapid detection of neutralizing antibodies to SARS-CoV-2 variants in post-vaccination sera

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Journal of Molecular Cell Biology 2021年第12期13卷 918-920页

作者： Kei Miyakawa Sundararaj Stanleyraj Jeremiah Hideaki Kato Yutaro Yamaoka Hirofumi Go Satoshi Yajima Tomoko Shimada takahiro mihara Atsushi Goto Takeharu Yamanaka Akihide Ryo Department of Microbiology Yokohama City University School of MedicineYokohamaJapan Infection Prevention and Control Department Yokohama City University HospitalYokohamaJapan Life Science Laboratory Technology and Development DivisionKanto Chemical Co.Inc.IseharaJapan Department of Biostatistics Yokohama City University Graduate School of MedicineYokohamaJapan Clinical Laboratory Department Yokohama City University HospitalYokohamaJapan Nursing Department Yokohama City University HospitalYokohamaJapan Department of Health Data Science Yokohama City University Graduate School of Data ScienceYokohamaJapan

The uncontrolled spread of the coronavirus disease 2019(COVID-19)pandemic has led to the emergence of different severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)variants across the *** ongoing global vaccination strategy to curtail the COVID-19 juggernaut is threatened by the rapidly spreading variants of concern(VOC)and other regional mutants,which are less responsive to neutralization by infection-or vaccine-derived antibodies(Gomez et al.,2021;Wang et al.,2021).

关键词： vaccination antibodies

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New acetogenin katsuurallene from Laurencia saitoi collected from Katsuura, Japan

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Natural Products and Bioprospecting 2022年第1期12卷 121-127页

作者： Yu Minamida Hiroshi Matsuura takahiro Ishii Miyu Miyagi Yuto Shinjo Kosuke Sato Takashi Kamada Yoshihiro mihara Iwao Togashi Keisuke Sugimoto Tsuyoshi Abe Norio Kikuchi Minoru Suzuki Advanced Course of Applied Chemistry National Institute of TechnologyAsahikawa CollegeShunkodai 2-2-1-6AsahikawaHokkaido 071-8142Japan Department of Materials Chemistry National Institute of TechnologyAsahikawa CollageShunkodai 2-2-1-6AsahikawaHokkaido 071-8142Japan Department of Biosciences and Biotechnology Faculty of AgricultureUniversity of the Ryukyus1 SenbaruNishiharaOkinawa 903-0213Japan Department of Materials and Life Science Faculty of Science and TechnologyShizuoka Institute of Science and Technology2200-2 ToyosawaFukuroiShizuoka 437-8555Japan Department of Medicinal Chemistry Faculty of Pharmaceutical SciencesHokkaido University of ScienceMaeda 715-4-1Teine-kuSapporoHokkaido 006-8590Japan The Hokkaido University Museum Hokkaido UniversityN10 W8Kita-kuSapporoHokkaido 060-0810Japan Coastal Branch of Natural History Museum and Institute Chiba123 YoshioKatsuuraChiba 299-5242Japan Department of Life Science Graduate School of Engineering ScienceAkita University1-1 Tegatagakuen-machiAkita 010-8502Japan

We examined the chemical constitution of the red alga Laurencia saitoi Perestenko,collected from Katsuura,Boso Peninsula,Chiba Prefecture,*** specimen produced a new polyhalogenated acetogenin,named katsuural-lene(1),which structure was determined by the spectral methods,along with known diterpene,deoxyparguerol(2)and triterpene,thyrsiferol(3).In this paper we describe the structural elucidation of katsuurallene together with some biological activities.

关键词： Laurencia Rhodomelaceae Acetogenin Triterpene Diterpene Biological activity

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