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New host and first description of a male Anchistrotos kojimensis Do and Ho, 1983 (Copepoda: Cyclopoida: Taeniacanthidae) from Korean waters

  • Moon, Seong Yong;Choi, Jung Hwa;Lim, Yang Jae;Kim, Jung-Nyun
    • Journal of Species Research
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    • v.6 no.spc
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    • pp.8-14
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    • 2017
  • Taeniacanthid copepods Anchistrotos kojimensis Do and Ho, 1983 were collected from the branchial cavities of stichaeid fish, Ernogrammus hexagrammus (Schlegel) and yellowfin goby, Acanthogobius flavimanus (Temminck and Schlegel) in Korean waters. Here, we provide the first description of a male of Anchistrotos Do and Ho, 1983. A close comparison of the specimens of A. kojimensis collected from Korea with the original description revealed differences in the adult female: (1) the caudal ramus bears seven setae (seta I minute); (2) the maxillule with small knob-like process anteriorly; (3) leg 5 ornamented with patched spinules distally and having row of spinules at base of each spine and distal seta. The first description of the adult male reveals the following features: (1) the distal abdominal somite had rows of spinules anteriorly and near insertion of each caudal ramus; (2) the postantennal process is more elongate than in the female; (3) the basis of maxilliped is with two prosimomedial setae, two longitudinal rows of stout denticles found on posteromedial surface and row of spinules on anteromedial surface; and (4) the second endopodal segment is a strongly curved claw, with a row of stout denticles along a concave margin, two long and one small setae.

A New Distance Measure for a Variable-Sized Acoustic Model Based on MDL Technique

  • Cho, Hoon-Young;Kim, Sang-Hun
    • ETRI Journal
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    • v.32 no.5
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    • pp.795-800
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    • 2010
  • Embedding a large vocabulary speech recognition system in mobile devices requires a reduced acoustic model obtained by eliminating redundant model parameters. In conventional optimization methods based on the minimum description length (MDL) criterion, a binary Gaussian tree is built at each state of a hidden Markov model by iteratively finding and merging similar mixture components. An optimal subset of the tree nodes is then selected to generate a downsized acoustic model. To obtain a better binary Gaussian tree by improving the process of finding the most similar Gaussian components, this paper proposes a new distance measure that exploits the difference in likelihood values for cases before and after two components are combined. The mixture weight of Gaussian components is also introduced in the component merging step. Experimental results show that the proposed method outperforms MDL-based optimization using either a Kullback-Leibler (KL) divergence or weighted KL divergence measure. The proposed method could also reduce the acoustic model size by 50% with less than a 1.5% increase in error rate compared to a baseline system.

Korean Species of the Genus Elampus (Hymenoptera: Chrysididae: Elampini) with First Discovery of Female of E. musashinus

  • Ha, Hyeong-Hwa;Kim, Jeong-Kyu
    • Animal Systematics, Evolution and Diversity
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    • v.29 no.2
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    • pp.184-187
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    • 2013
  • Korean species of the genus Elampus Spinola is taxonomically reviewed. Korean fauna of the genus Elampus was known by one sepcies, Elampus bidens (F$\ddot{o}$rster). This study reports new discover of another Korean species E. musashinus (Tsuneki). This species was described based on male, and the female has been still unknown. With comparison of partial mitochondrial cytochrome c oxidase I gene sequences, the sex-association of this species is established, the Korean specimens of both sexes completely identical in their sequences targeted. Herein the female description of E. musashinus is presented for the first time. A key to the Korean species, as well as diagnosis and digital images are provided.

Derivation Algorithm of State-Space Equation for Production Systems Based on Max-Plus Algebra

  • Goto, Hiroyuki;Masuda, Shiro
    • Industrial Engineering and Management Systems
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    • v.3 no.1
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    • pp.1-11
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    • 2004
  • This paper proposes a new algorithm for determining an optimal control input for production systems. In many production systems, completion time should be planned within the due dates by taking into account precedence constraints and processing times. To solve this problem, the max-plus algebra is an effective approach. The max-plus algebra is an algebraic system in which the max operation is addition and the plus operation is multiplication, and similar operation rules to conventional algebra are followed. Utilizing the max-plus algebra, constraints of the system are expressed in an analogous way to the state-space description in modern control theory. Nevertheless, the formulation of a system is currently performed manually, which is very inefficient when applied to practical systems. Hence, in this paper, we propose a new algorithm for deriving a state-space description and determining an optimal control input with several constraint matrices and parameter vectors. Furthermore, the effectiveness of this proposed algorithm is verified through execution examples.

Towards a physics-based description of intra-granular helium behaviour in oxide fuel for application in fuel performance codes

  • Cognini, L.;Cechet, A.;Barani, T.;Pizzocri, D.;Van Uffelen, P.;Luzzi, L.
    • Nuclear Engineering and Technology
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    • v.53 no.2
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    • pp.562-571
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    • 2021
  • In this work, we propose a new mechanistic model for the treatment of helium behaviour which includes the description of helium solubility in oxide fuel. The proposed model has been implemented in SCIANTIX and validated against annealing helium release experiments performed on small doped fuel samples. The overall agreement of the new model with the experimental data is satisfactory, and given the mechanistic formulation of the proposed model, it can be continuously and easily improved by directly including additional phenomena as related experimental data become available.

The Role of Imagery vs. Analytical Advertisement on New Products Evaluation

  • Lee, Juyon;Chu, Wujin
    • Asia Marketing Journal
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    • v.22 no.2
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    • pp.59-85
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    • 2020
  • Combining prior theories on innovation newness with information processing style (imagery vs. analytical), this study presents a theoretical framework; develops hypotheses; and makes predictions on how analytical versus imagery ads influence consumers differently depending on the newness level of products. The study shows that consumers are more likely to evaluate RNPs (radically-innovative new products) positively when they are advertised with imagery cues. Compared with analytical advertisements, imagery advertisements increased advertising effectiveness, product evaluation, and purchase intention of RNPs. These effects were demonstrated by using stimuli from two product categories consisting of washing machines and cars. In particular, in advertisement for RNPs, verbal description that induced imagery processing, such as "picture yourself using this product," was more effective in generating favorable responses, compared to verbal description that induced analytical processing, such as explanation of product attributes. This difference was present for RNPs, but not for INPs (incrementally-innovative new products). INPs are continuous innovations that are easier to understand, thus imagery ads do not provide additional advantage for consumers in understanding the innovation, compared to analytical ads. In RNPs, imagery ads can highlight new benefits that may have been neglected or undervalued by consumers, leading to greater message persuasiveness. Implications for marketing of RNPs are discussed.

A New Species of the Spider Genus Ebrechtella Dahl and First Record of Ozyptila utotchkini Marusik, with the First Description of the Male of Ozyptila geumoensis Seo and Sohn (Araneae, Thomisidae) from Korea

  • Seo, Bo Keun
    • Korean Journal of Environmental Biology
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    • v.33 no.2
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    • pp.112-118
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    • 2015
  • A new species of the genus Ebrechtella Dahl, Ebrechtella juwangensis n. sp. and the male of Ozyptila geumoensis Seo and Sohn, 1997 are reported new to science. Ozyptila utotchkini Marusik, 1990 is reported for the first time in Korea. Habitus photos and illustrations of these three species are provided.