The Experts below are selected from a list of 2559504 Experts worldwide ranked by ideXlab platform
Guanjun You - One of the best experts on this subject based on the ideXlab platform.
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Miniaturization design of all-optical Encoder based on surface design and radiation source control
Physica E-low-dimensional Systems & Nanostructures, 2020Co-Authors: Debao Zhang, Guanjun YouAbstract:Abstract All-optical Encoders with high speed are required to achieve efficient information conversion in the field of ultra-fast information encoding, which can break the bottleneck of photoelectric conversion delay in traditional optical Encoders and improve a tunable bandwidth of up to THz range. The modifiable advantages of light path about all-optical Encoder can be widely used in modern high-precision device. This review introduces two principles of all-optical Encoders, based on light propagation design and radiation source parameter design. We introduced the principle and miniaturization development of Encoders that use two-dimensional (2D) photonic crystal defects to design optical path propagation, which can effectively use the photonic band gap effect to bind the propagation channel and use the ring resonator to effectively improve the coupling efficiency. In addition, we compared with the method of the optical Encoder for the design of radiation source parameters, and offer a practicable idea for the design of high-order Encoder.
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Miniaturization design of all-optical Encoder based on surface design and radiation source control
Physica E: Low-dimensional Systems and Nanostructures, 1Co-Authors: Debao Zhang, Guanjun YouAbstract:Abstract All-optical Encoders with high response speed are required to achieve efficient information conversion in the field of ultra-fast information encoding, which can break the bottleneck of photoelectric conversion delay in traditional optical Encoders and achieve a tunable bandwidth up to THz. The modifiable advantages of light path about all-optical Encoder can widely satisfy the functional requirements of the modern high-precision device. This review introduces two principles of all-optical Encoders, based on light propagation design and radiation source parameter design. We introduced the principle and miniaturization development of all-optical Encoders based on the fabrication of two-dimensional (2D) photonic crystal defects to control optical path propagation, which can effectively use the photonic band gap effect to construct waveguide and the ring resonator to improve the coupling efficiency. In addition, we compared the previous method of the all-optical Encoder with the design of radiation source parameters, and offer a practicable idea for the design of high-order Encoder.
Richard Thiéry - One of the best experts on this subject based on the ideXlab platform.
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Characterisation of Structural Proteins from Chronic Bee Paralysis Virus (CBPV) Using Mass Spectrometry
Viruses, 2015Co-Authors: Aurore Chevin, Anne-sophie Dabert-gay, Magali Ribière-chabert, Philippe Blanchard, Bruno Coutard, Richard ThiéryAbstract:Chronic bee paralysis virus (CBPV) is the etiological agent of chronic paralysis, an infectious and contagious disease in adult honeybees. CBPV is a positive single-stranded RNA virus which contains two major viral RNA fragments. RNA 1 (3674 nt) and RNA 2 (2305 nt) encode three and four putative open reading frames (ORFs), respectively. RNA 1 is thought to encode the viral RNA-dependent RNA polymerase (RdRp) since the amino acid sequence derived from ORF 3 shares similarities with the RdRP of families Nodaviridae and Tombusviridae. The genomic organization of CBPV and in silico analyses have suggested that RNA 1 encodes non-structural proteins, while RNA 2 encodes structural proteins, which are probably encoded by ORFs 2 and 3. In this study, purified CBPV particles were used to characterize virion proteins by mass spectrometry. Several polypeptides corresponding to proteins encoded by ORF 2 and 3 on RNA 2 were detected. Their role in the formation of the viral capsid is discussed.
Debao Zhang - One of the best experts on this subject based on the ideXlab platform.
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Miniaturization design of all-optical Encoder based on surface design and radiation source control
Physica E-low-dimensional Systems & Nanostructures, 2020Co-Authors: Debao Zhang, Guanjun YouAbstract:Abstract All-optical Encoders with high speed are required to achieve efficient information conversion in the field of ultra-fast information encoding, which can break the bottleneck of photoelectric conversion delay in traditional optical Encoders and improve a tunable bandwidth of up to THz range. The modifiable advantages of light path about all-optical Encoder can be widely used in modern high-precision device. This review introduces two principles of all-optical Encoders, based on light propagation design and radiation source parameter design. We introduced the principle and miniaturization development of Encoders that use two-dimensional (2D) photonic crystal defects to design optical path propagation, which can effectively use the photonic band gap effect to bind the propagation channel and use the ring resonator to effectively improve the coupling efficiency. In addition, we compared with the method of the optical Encoder for the design of radiation source parameters, and offer a practicable idea for the design of high-order Encoder.
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Miniaturization design of all-optical Encoder based on surface design and radiation source control
Physica E: Low-dimensional Systems and Nanostructures, 1Co-Authors: Debao Zhang, Guanjun YouAbstract:Abstract All-optical Encoders with high response speed are required to achieve efficient information conversion in the field of ultra-fast information encoding, which can break the bottleneck of photoelectric conversion delay in traditional optical Encoders and achieve a tunable bandwidth up to THz. The modifiable advantages of light path about all-optical Encoder can widely satisfy the functional requirements of the modern high-precision device. This review introduces two principles of all-optical Encoders, based on light propagation design and radiation source parameter design. We introduced the principle and miniaturization development of all-optical Encoders based on the fabrication of two-dimensional (2D) photonic crystal defects to control optical path propagation, which can effectively use the photonic band gap effect to construct waveguide and the ring resonator to improve the coupling efficiency. In addition, we compared the previous method of the all-optical Encoder with the design of radiation source parameters, and offer a practicable idea for the design of high-order Encoder.
Aurore Chevin - One of the best experts on this subject based on the ideXlab platform.
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Characterisation of Structural Proteins from Chronic Bee Paralysis Virus (CBPV) Using Mass Spectrometry
Viruses, 2015Co-Authors: Aurore Chevin, Anne-sophie Dabert-gay, Magali Ribière-chabert, Philippe Blanchard, Bruno Coutard, Richard ThiéryAbstract:Chronic bee paralysis virus (CBPV) is the etiological agent of chronic paralysis, an infectious and contagious disease in adult honeybees. CBPV is a positive single-stranded RNA virus which contains two major viral RNA fragments. RNA 1 (3674 nt) and RNA 2 (2305 nt) encode three and four putative open reading frames (ORFs), respectively. RNA 1 is thought to encode the viral RNA-dependent RNA polymerase (RdRp) since the amino acid sequence derived from ORF 3 shares similarities with the RdRP of families Nodaviridae and Tombusviridae. The genomic organization of CBPV and in silico analyses have suggested that RNA 1 encodes non-structural proteins, while RNA 2 encodes structural proteins, which are probably encoded by ORFs 2 and 3. In this study, purified CBPV particles were used to characterize virion proteins by mass spectrometry. Several polypeptides corresponding to proteins encoded by ORF 2 and 3 on RNA 2 were detected. Their role in the formation of the viral capsid is discussed.
Tomohiko Uyematsu - One of the best experts on this subject based on the ideXlab platform.
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Coding Theorems for Asynchronous Slepian-Wolf Coding Systems
arXiv: Information Theory, 2019Co-Authors: Tetsunao Matsuta, Tomohiko UyematsuAbstract:The Slepian-Wolf (SW) coding system is a source coding system with two Encoders and a decoder, where these Encoders independently encode source sequences from two correlated sources into codewords, and the decoder reconstructs both source sequences from the codewords. In this paper, we consider the situation in which the SW coding system is asynchronous, i.e., each Encoder samples a source sequence with some unknown delay. We assume that delays are unknown but maximum and minimum values of possible delays are known to Encoders and the decoder. We also assume that sources are discrete stationary memoryless and the probability mass function (PMF) of the sources is unknown but the system knows that it belongs to a certain set of PMFs. For this asynchronous SW coding system, we clarify the achievable rate region which is the set of rate pairs of Encoders such that the decoding error probability vanishes as the blocklength tends to infinity. We show that this region does not always coincide with that of the synchronous SW coding system in which each Encoder samples a source sequence without any delay.
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ITW Fall - Achievable rate regions for asynchronous Slepian-Wolf coding systems
2015 IEEE Information Theory Workshop - Fall (ITW), 2015Co-Authors: Tetsunao Matsuta, Tomohiko UyematsuAbstract:The Slepian-Wolf (SW) coding system is a source coding system with two Encoders and a decoder, where these Encoders independently encode input sequences emitted from two correlated sources into fixed-length codewords, and the decoder reconstructs all input sequences from the codewords. In this paper, we consider the situation in which the SW coding system is asynchronous, i.e., each Encoder runs with each delay from the base time. We assume that these delays are unknown to Encoders and a decoder, but the maximum of delays is known to Encoders and the decoder. For this asynchronous SW coding system, we clarify the achievable rate region, where the achievable rate region is the set of rate pairs of Encoders such that the decoding error probability vanishes as the block length tends to infinity. Furthermore, we show an exponential bound of the error probability for this coding system by using Gallager's random coding techniques.
