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Some Bacteriological Problems of Skin Flora
Asada, Yasuo 대한피부과학회 1985 大韓皮膚科學會誌 Vol.23 No.5
The bacterial group which we usually consider as resident flora sometimes changes into opportuniistic pathogen which produces oppartunistic infection, so that attention to resident flora remarkably increased. The main topics of bacterioloical problems of skin flora are as follows: (1) selective localization of resident flora, (2) members of resident flora and their changes by age and area, (3) the role of action of resident flora, (4) the problems of Micrococcus, (5) coagulase negative Staphylococci, (6) coagulase positive Staphylococci, (7) the problerns of Propionilbacterium(P) acnes, (8) typing of propionibacteria existing on human skin, (9) antibiotic sensitivities of P. acnes, (10) effect of tetracycline on lipase productivity oi P. acnes.
Asada, Masaru,Hara, Ryoichi,Kita, Hiroyuki The Korean Institute of Electrical Engineers 2012 The Journal of International Council on Electrical Vol.2 No.4
Photovoltaic generation (PV) systems are growing as one of renewable energy resources in the world from their merits of low greenhouse effect gas exhaustion and less fossil fuel consumption. However, PV output widely varies depending on the insolation condition and is uncontrollable. When huge amount of PV systems are interconnected to a grid, the supply and demand balancing, one of the most important and fundamental power system operations, might become more difficult. In such situation, PV output forecast should be taken in to account in the unit commitment process and/or the online balancing operation. Particularly, the generation reserves should be set aside so that the PV output fluctuation and PV output forecast error can be compensated. From this viewpoint, this paper proposes an operational cost evaluation method considering the probabilistic feature of forecast error. Furthermore, a method for estimating the adequate reserve required for large PV installations is presented.
Heritability and Repeatability of Superovulatory Responses in Holstein Population in Hokkaido, Japan
Asada, Y.,Terawaki, Y. Asian Australasian Association of Animal Productio 2002 Animal Bioscience Vol.15 No.7
The aim of this study was to estimate heritability and repeatability for the number of embryos and transferable embryos collected per flush in Holstein population in Hokkaido, Japan. Data consisted of 306 MOET (Multiple Ovulation and Embryo Transfer) treatments on 224 Holstein cows from 1997 to 2000. Variance components for these traits were estimated using the REML procedure. The model included only non-genetic factors that were significant at the 0.05 level, through using generalized linear models, maximum likelihood methods, and stepwise regression procedure as fixed effects and sire and residual for heritabilities, donor and residual for repeatabilities as random effects. The factor identified as important in determining the results was the donor''s estrous condition after superovulation. Heritabilities for the number of embryos and transferable embryos collected per flush were 0.14 and 0.09, respectively. The corresponding repeatabilities were 0.43 and 0.32, respectively. These results show that it was difficult to genetically improve these traits, thus, environmental and physical factors affecting the donor must be improved. These results also show that it is necessary to take the donor''s estrous condition after superovulation and repeatabilities for the number of embryos and transferable embryos collected per flush into account when the genetic gains and inbreeding rates for MOET breeding schemes are predicted by a computer simulation.
Asada Chikako,Nakamura Yoshitoshi,Kobayashi Fumihisa The Korean Society for Biotechnology and Bioengine 2005 Biotechnology and Bioprocess Engineering Vol.10 No.4
The chemical characteristics, enzymatic saccharification, and ethanol fermentation of autohydrolyzed lignocellulosic material that was exposed to steam explosion were investigated using bagasse as the sample. The effects of the steam explosion on the change in pH, organic acids production, degrees of polymerization and crystallinity of the cellulose component, and the amount of extractive components in the autohydrolyzated bagasse were examined. The steam explosion decreased the degree of polymerzation up to about 700 but increased the degree of crystallinity and the micelle width of the cellulose component in the bagasse. The steam explosion, at a pressure of 2.55 MPa for 3 mins, was the most effective for the delignification of bagasse. 40 g/L of glucose and 20 g/L of xylose were produced from 100 g/L of the autohydrolyzed bagasse by the enzymatic saccharification using mixed cellulases, acucelase and meicelase. The maximum ethanol concentration, 20 g/L, was obtained from the enzymatic hydrolyzate of 100 g/L of the autohydrolyzed bagasse by the ethanol fermentation using Pichia stipitis CBS 5773; the ethanol yield from sugars was 0.33 g/g sugars.
다수다얼성 옥수수 교잡종($IK_1$/IRI)의 생육시기별 양분흡수
Joonsi, Asada,Hee Bong, Lee,Bong Ho, Choe,Moon Kyu, Kim 한국작물학회 1992 Korean journal of crop science Vol.37 No.3
본 시험은 포트실험으로서 분얼을 하는 옥수수(IK$_1$,/IRI)와 분얼을 하지않는 옥수수(장야001)의 생육기간중 주요식물학적 특성을 비교하고 또 주요양분에 대한 생육시기별 흡수량과 흡수율에 대한 변화를 알아보고자 수행되었다. 1. 분얼하는 IK$_1$ /IRI가 분얼하지 않는 장야001 보다 전반적으로 생육이 양호하여 지상부의 개체당 생체중과 건물중이 무거웠으며 식물체를 부위별로 비교하였을 때에도 이삭을 제외한 경엽중이 더 무거웠다. 2. 생육시기별 개체당 질소, 인산, 가리의 흡수량을 전체 건물중에 대한 비율로 보면 분얼형인 IK$_1$/IRI 교잡종이 분얼하지 않는 장야일호보다 낮은 경향이었으나 성숙기의 질소함량은 오히려 분얼형이 분얼하지 않는 옥수수 보다 높았다. 3. 석회 및 고토의 흡수량은 두 공시 교잡종이 비슷한 경향이었다. 4. 질소와 가리의 함양은 웅종 출현기에 최고에 달하였다가 생육후기로 갈수록 감소하는 경향이었으나 분얼하는 IK$_1$/IRI의 경우 질소함량이 성숙기에 증가하였다. 그러나 인산의 생육기별 함유량은 두 교잡종 모두 감소하는 경향이었다. 5. 경엽의 질소, 인산, 가리함량은 생육시기별로 일정하거나 다소 감소하는데 반하여 이삭에서는 생육후기로 갈수록 크게 증가하였다. 6. 흡수한 질소의 건물생산효과를 보면 전생육기간중 이삭을 제외하고 IK$_1$/IRI가 장야일호보다 높았다. The objective of the study was to clarify the pattern of fertilizer absorption by tillering hybrid, IK$_1$/IRI. Nangano No.1 hybrid was included as non-tillering check hybrid. Hybrids were grown in pots and the plants were periodically analyzed for their chemical components like nitrogen, phosphorus, potassium, calcium and magnesium. The results obtained indicate that the amount of nitrogen, phosphorus and potassium absorbed by IK$_1$/IRI was slightly lower than that absorbed by Nangano No.1, except nitrogen in the maturity of IK$_1$ /IRI. However, no major differences were observed for the calcium and magnesium content between two hybrids. In most cases amount of nitrogen and calcium in the plant of two hybrids seemed to decrease as the plants mature, while amount of those chemicals in the ears increased. Nitrogen efficiency for IK$_1$ /IRI seemed a little lower than that for Nangano No.1.
A CONSIDERATION FOR DELTA-SIGMA MODULATOR IN MULTI-CHANNEL MEASUREMENT SYSTEMS
Atsushi ASADA,Satoshi HIRANO,Tomio GOTO,Masaru SAKURAI,Shogo MIURA,Daijyu ITAGAKI 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
In this papar, we have examined reproduction of waveform and stability that needs to be cleared in order to introduce the delta-sigma modulator into the multi-channel measurement systems. Our study has proved that the delta-sigma modulator can be applied to the multi-channel measurement system.
SYNTHESIS AND SPECTROSCOPIC CHARACTERIZATION OF SALMON DNA-WRAPPED SINGLE-WALL CARBON NANOTUBES
YUKI ASADA,HIROFUMI DOHI,SHOTA KUWAHARA,TOSHIKI SUGAI,RYO KITAURA,HISANORI SHINOHARA 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2007 NANO Vol.2 No.5
Single-wall carbon nanotubes (SWNTs) can be well-dispersed in water by wrapping with short segments of natural DNA from salmon sperm. We report here the isolated DNA-wrapped SWNT hybrids. Measurements were carried out using UV-vis-NIR, near-infrared photoluminescence (PL) spectrum and atomic force microscopy (AFM). A possible charge transport between SWNTs and salmon-DNA is discussed in terms of observed spectral shifts in the photoluminescence spectra.
Post-Event Effects: A New Perspective on Giveaway Items Distributed at Sporting Events
Akira Asada,Akiko Arai 글로벌지식마케팅경영학회 2023 Journal of Global Sport Management Vol.8 No.1
The purpose of this study was to examine how giveaway items distributed at sporting events are used afterward. The results of the content analysis of survey responses and a series of regression analyses showed that people often use, display, and talk about giveaway items after sporting events and that sports teams can encourage consumers to engage in those behaviors by improving the items’ functional, symbolic, and social value. Specifically, when sports teams give away apparel items, they should consider (a) designing items that are useful for social events, errands, or physical activities; (b) offering various size options; and (c) designing fashionable items. When sports teams create memorabilia, they should consider (a) adding a unique function to the items and (b) designing items that reflect unique experiences and identities. As one of the first to examine the post-event effects of giveaway items, the present study provides unique theoretical and practical implications.