• Title/Summary/Keyword: Multiplication and combining

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Control of Nonlinear System by Multiplication and Combining Layer on Dynamic Neural Networks (동적 신경망의 층의 분열과 합성에 의한 비선형 시스템 제어)

  • Park, Seong-Wook;Lee, Jae-Kwan;Seo, Bo-Hyeok
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.48 no.4
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    • pp.419-427
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    • 1999
  • We propose an algorithm for obtaining the optimal node number of hidden units in dynamic neural networks. The dynamic nerual networks comprise of dynamic neural units and neural processor consisting of two dynamic neural units; one functioning as an excitatory neuron and the other as an inhibitory neuron. Starting out with basic network structure to solve the problem of control, we find optimal neural structure by multiplication and combining dynamic neural unit. Numerical examples are presented for nonlinear systems. Those case studies showed that the proposed is useful is practical sense.

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Real-Tim Sound Field Effect Implementation Using Block Filtering and QFT (Block Filtering과 QFT를 이용한 실시간 음장 효과구현)

  • Sohn Sung-Yong;Seo Jeongil;Hahn Minsoo
    • MALSORI
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    • no.51
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    • pp.85-98
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    • 2004
  • It is almost impossible to generate the sound field effect in real time with the time-domain linear convolution because of its large multiplication operation requirement. To solve this, three methods are introduced to reduce the number of multiplication operations in this paper. Firstly, the time-domain linear convolution is replaced with the frequency-domain circular convolution. In other words, the linear convolution result can be derived from that of the circular convolution. This technique reduces the number of multiplication operations remarkably, Secondly, a subframe concept is introduced, i.e., one original frame is divided into several subframes. Then the FFT is executed for each subframe and, as a result, the number of multiplication operations can be reduced. Finally, the QFT is used in stead of the FFT. By combining all the above three methods into our final the SFE generation algorithm, the number of computations are reduced sufficiently and the real-time SFE generation becomes possible with a general PC.

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Pattern recognition of multiplication environment of lactic acid bacteria in curd yogurt prepared by household fermentation system (가정용 호상 요구르트 발효기를 이용한 유산균 증식환경의 패턴 인식)

  • Shin, Seung-Hun;Choi, Sie-Young;Lee, Eun-Ju;Kwak, Bong-Soon;Kim, Jong-Boo
    • Journal of Sensor Science and Technology
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    • v.17 no.2
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    • pp.151-155
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    • 2008
  • In this paper, it was investigated that the pattern recognition of multiplication environment of lactic acid bacteria in the process of curd yogurt preparation using household fermentation system, which was manufactured by combining incubator with sensor module, data processing circuit and computer. It will be sufficiently applicable to determine the maximum ratio of the amount of air to mixed milk for preparation of high quality yogurt.

A Design of Modular Multiplier Based on Improved Multi-Precision Carry Save Adder (개선된 다정도 CSA에 기반한 모듈라 곱셈기 설계)

  • Kim, Dae-Young;Lee, Jun-Yong
    • Journal of KIISE:Computer Systems and Theory
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    • v.33 no.4
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    • pp.223-230
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    • 2006
  • The method of implementing a modular multiplier for Montgomery multiplication by using an adder depends on a selected adder. When using a CPA, there is a carry propagation problem. When using a CSA, it needs an additional calculation for a final result. The Multiplier using a Multi-precision CSA can solve both problems simultaneously by combining a CSA and a CPA. This paper presents an improved MP-CSA which reduces hardware resources and operation time by changing a MP-CSA's carry chain structure. Consequently, the proposed multiplier is more suitable for the module of long bit multiplication and exponentiation using a modular multiplier repeatedly.

Cellular Automata based on VLSI architecture over GF($2^m$) (GF($2^m$)상의 셀룰라 오토마타를 이용한 VLSI 구조)

  • 전준철;김현성;이형목;유기영
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.12 no.3
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    • pp.87-94
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    • 2002
  • This study presents an MSB(Most Significant Bit) Int multiplier using cellular automata, along with a new MSB first multiplication algorithm over GF($2^m$). The proposed architecture has the advantage of high regularity and a reduced latency based on combining the characteristics of a PBCA(Periodic Boundary Cellular Automata) and with the property of irreducible AOP(All One Polynomial). The proposed multiplier can be used in the effectual hardware design of exponentiation architecture for public-key cryptosystem.

Novel Reproductive Techniques in Swine Production - A Review

  • Okere, C.;Nelson, L.
    • Asian-Australasian Journal of Animal Sciences
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    • v.15 no.3
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    • pp.445-452
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    • 2002
  • The main objective of modern reproductive technologies in pig reproduction is to increase reproductive efficiency and rates of genetic improvement. They also offer potential for greatly extending the multiplication and transport of genetic materials and the conservation of unique genetic resources in reasonably available forms for possible future use. The development and refinement of these technologies is concentrating on gamete and embryo collection, sorting and preservation, in vitro production of embryos, culturing, manipulation of embryos (splitting, nuclear transfer, production of chimeras, establishment embryo stem cells, and gene transfer) and embryo transfer. Also, the development of these novel technologies is facilitated by modern equipment for ultrasonography, microscopy, cryopreservation, endoscopy, and flow cytometry, microinjectiors, micromanipulators and centrifugation. The real impact on herd productivity will come from combining new reproductive techniques with powerful DNA technologies. The new reproductive techniques will allow a rapid turnover of generations, whereas the DNA technology can provide selection, which does not need phenotypic information when the selection decisions are made.

Benchmarks of subcriticality in accelerator-driven system at Kyoto University Critical Assembly

  • Pyeon, Cheol Ho;Yamanaka, Masao;Kim, Song-Hyun;Vu, Thanh-Mai;Endo, Tomohiro;Van Rooijen, Willem Fredrik G.;Chiba, Go
    • Nuclear Engineering and Technology
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    • v.49 no.6
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    • pp.1234-1239
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    • 2017
  • Basic research on the accelerator-driven system is conducted by combining $^{235}U$-fueled and $^{232}Th$-loaded cores in the Kyoto University Critical Assembly with the pulsed neutron generator (14 MeV neutrons) and the proton beam accelerator (100 MeV protons with a heavy metal target). The results of experimental subcriticality are presented with a wide range of subcriticality level between near critical and 10,000 pcm, as obtained by the pulsed neutron source method, the Feynman-${\alpha}$ method, and the neutron source multiplication method.

A Risk Evaluation Model Using On-Site Meteorological Data

  • Kang, Chang-Sun
    • Nuclear Engineering and Technology
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    • v.11 no.2
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    • pp.127-132
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    • 1979
  • A model is considered in order to evaluate the potential risk from a nuclear facility directly combining the on-site meteorological data. The model is utilized to evaluate the environmental consequences from the routine releases during normal plant operation as well as following postulated accidental releases. The doses to individual and risks to the population-at-large are also analyzed in conjunction with design of rad-waste management and safety systems. It is observed that the conventional analysis, which is done in two separate unaffiliated phases of releases and atmospheric dispersion tends to result in unnecessary over-design of the systems because of high resultant doses calculated by multiplication of two extreme values.

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One Improved RLWE-based FHE and Fast Private Information Retrieval

  • Song, Wei-Tao;Hu, Bin;Zhao, Xiu-Feng
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • v.13 no.12
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    • pp.6260-6276
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    • 2019
  • With the rapid development of cloud computing, it raises real questions on privacy protection, which greatly limits the use of cloud computing. However, fully homomorphic encryption (FHE) can make cloud computing consistent with privacy. In this paper, we propose a simpler FHE scheme based on ring LWE problem, with a smaller size of ciphertext and a lower noise-expansion factor for homomorphic multiplication. Then based on our optimized RLWE-based FHE scheme, we propose a fast single-database private information retrieval protocol, combining with batching and number theoretic transform technology.

Basic Seed Stock Maintenance and Multiplication in Indian Tropical Tasar Silkworm Antheraea mylitta Drury-A Strategic Approach

  • Reddy, Rangareddygari Manohar;Suryanarayana, Nagabathula;Ojha, Nand Gopal;Hansda, Ganga;Rai, Suresh;Prakash, Nanjappa Basappa Vijaya
    • International Journal of Industrial Entomology and Biomaterials
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    • v.18 no.2
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    • pp.69-75
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    • 2009
  • Daba ecorace of Antheraea mylitta Drury (Lepidoptera: Saturniidae), the semi domesticated Indian tropical tasar silkworm being reared outdoor; the egg and silk yields are dependent of genotype environment interaction. The insufficient maintenance and multiplication of its P4 seed stock need a coherent as well as scientific strategy to safeguard breed potential, being commercially applied ecorace. The sort-out lines of P4 stock studied over five generations highlighting on commercial trait up gradation suits for a tropical crop season, revealed enhanced performance. The line with high pupal parents (T2) shown improved fecundity (12.9%) and the line with high shell parents (T3) recorded higher shell weight (40.0%) and silk ratio (24.1%). While, the line of high pupal female and high shell male (T4) reveal enhancement in fecundity (9.0%), egg hatching (14.1%), shell weight (50.0%), silk ratio (35.2%) and absolute silk yield (52.0%) indicating the need and role of varied basic seed stock lines. The approach could improve economically vital egg fecundity and cocoon shell weights besides balancing them in same line for commercial operation. The progressive show of lines (T1 to T4) along successive generations (G1 to G5), in spite of passing through seed crop (Jul-Aug) and commercial crop (Sep-Nov) seasons emphasize their compatibility. The study infers that the strategic plan of combining preferred parental phenotypes, methodical selection for desired commercial trait(s) through generations with best possible genotype environment interaction has enriched P4 stock with elevation in needy trait(s) besides assuring choice of suitable lines for seasons and regions and timely replenishment of basic seed of Daba ecorace.