담수산새우 Macrobrachium rosenbergi(de Man) 의 초기유생 및 post - larva 의 성장에 미치는 염분량에 관하여

권진수,우야관,소립원의광 한국수산학회 1977 한국수산과학회지 Vol.10 No.2

The fresh water prawn, Macrobrahium rosenbergi(de Man) is a very common species in Indo-pacific region, which inhaits both fresh and brackish water in low land area, most of rivers and especially aboundant in the lower reaches which are influenced by sea water. It is one of the largest and commercial species of genus Macrobrachium, which is commonly larger than 18~21 cm in body length, from the basis of eye-stalked to the distal of telson. As a part of the researches in order to investigate the possibilities on transplantation and propagation of this species, this work dealt with the problems on the effects of chlorinities upon zoeal larvae and post-larvae- 1). metamorphosis rate and optimum chlorinity for metamorphosis to post-larve, 2). tolerance and comparative survival rate on various chlorinties, from fresh water to sea water (19.38‰CI), which reared for six days upon each stage of zoeal larvae, 3). accomodation rate on chlonities which reared for twelve days after transmigration into variant chlorinities of the range from 3.68‰CI to 1.53‰CI in the way of rearing of the range from 3.82‰CI to 11.05‰CI upon each stage of zoea, 4). tolerance on both fo fresh and sea water upon zoeal larva and post-larva under the condition of 28℃ 1 in temprature and feeding on Arteinia salina nauplii, 5). relationship between various chlorinities and growth of post larvae under the condition of 28℃ in temperature and feeding on meat of clam. Thus these investigations were performed in order to grope for a comfortable method on seedmass production. Up to the present, the study on the effects of chlorinity upon earlier zoeal larvae and post-larvae of Macrobrachium species has been scarcely performed by workers with the exception of Lewis(1961) and Ling(1962, 1967), even so their works were not so detailed. On the other hand, larvae of several species of this genus were reared at the water which mixed sea water so as to carry out complete metamorphosis to post-larva by workers in order to investigate on earlier larval and earlier post-larval development, such as Macrobrachium lamerrei (Rajyalakshmi, 1961), M. rosenbergi and M. nipponense (Uno and Kwon, 1969; Kwon and Uno, 1969), M. acanthurus (Choudhury, 1970; Dobkin, 1971), M. carcinus (Choudhury, 1970), M. formosense (Shokita, 1970), M. olfersii (Duggei et al., 1975), M. novaehallandiae (Greenwood et al., 1976), M. japonicum (Kwon, 1974) and M. lar (Shokita, personal communication), and there-fore it is regarded that chlorinity is, generally, one of absolute factors to rear zoeal larvae of brackish species of Macrobrachium genus. Synthetic results on this work is summarized as the follwings: 1) Zoeal larvae required different chlorinities to grow according to each stage, and generally, it is regarded that optimum range of living and growing is from 7.63‰CI to 12.42‰CI, and while differences of metamorphsis rate, from first zoea to post-larva, is rarely found in this range, and however it occurs apparently in both of situation at 4.42‰CI below and 16.13‰CI above and moreover, metamorphosis rate is delayed somewhat in case of lower chlorinity as compared with high chlorinity in these situations. 2) Accomodation in each chlorinity on the range, from fresh water to sea water, is different according to larval stages and while the best of it is, generally, on the range from 8.28‰CI to 12.42‰CI and favorite cholrinity of zoea have a tendency to remove from high chlorinity to lower chlorinity in order to advance larval age throughout all zoeal stages, setting a conversional stage for eighth zoea stage. 3) Optimum chlorinity of living and growth upon postlarvae is on the range of 4.25‰CI below, and in proportion as approach to fresh water, growth rate is increased. 4) Post-larvae are able to live better in fresh water in comparison with zoeal larvae, which are only able to live within fifteen hours, and by contraries, post-larvae are merely able to live for one day as compared with zoeal larvae, which are able to live for six days more in sea water (19.3‰CI above). 5) Also, in case of transmigration into higher and lower chlorinities in the way of rearing in the initial chlorinities (3.82‰CI, 7.14‰CI and 11.05‰CI), accomodation rate is as follow: accomodation capacity in ease of removing into higher chlorinities from lower chlorinities is increased in proportion as earlier stages, setting a conversional stage for eighth zoea stage, and by contraries, in case of advanced stages from eighth zoea it is incraesed in proportion as approach to post-larva stage in the case of transmigration into lower chlorinity from highor chlorinity. On the other hand, it is interesting that in case of reciprocal transmigration between two different chlorinities, each survival rate is different, and in this case, also, its accomodation in each zoea stage has a tendency to vary according to larval stages as described above, setting a conversional stage for eighth zoea stage. 6) It is likely that expension of radish pigments on body surface is directly proportional to chlorinity during the period of zoea rearing, and therefore it seems like all body surfaces of zoea larvae be radish coloured in case of higher chlorinity. 7) By the differences that each zoeal larvae, postlarvae, juvaniles and adult prawn are required different chlorinity for inhabiting in each, it is ragarded that this species migrats from up stream to near the estuary of the river which the prawns inhabits commonly in natural field for spawning and growth migration. 8) It had better maintainning chlorinities according to zoeal stage for a comfortable method on seed-mass production that earlier larva stages than eighth zoea are maintained on the range from 8‰CI to 12‰CI to rear, and later larva stages than eighth zoea, by contraies, are gradually regulated to lower chlorininity of the range from 7‰CI to 4‰CI according to advance for post-larva stage.

해수면에 의해 반사된 태양복사 성분의 특성: 남한의 제주도 사례

( Uno Fumichika ),( Yousay Hayashi ),황수진 ( Soo Jin Hwang ),김해동 ( Hae Dong Kim ) 한국농림기상학회 2011 한국농림기상학회지 Vol.13 No.2

Solar radiation components reflected by the sea surface (R(ss)↑) are additional energy sources comprising the solar radiation regime. Previous studies, based on observational approaches, indicated that R(ss)↑ is an available climatological resource. However, an estimation process for R(ss)↑ has not been established. In this case study over Jeju Island in South Korea, we applied a new estimation process to solar radiation modeling and discussed the spatial distribution of R(ss)↑ and its seasonal variation. Our results showed that the illuminated area and the intensity of R(ss)↑ became greatest at the winter solstice and least at the summer solstice. We estimated the illuminated area of R(ss)↑ as it expanded over the southern slope of Jeju Island. At the winter solstice, on a daily basis, the area and intensity of illumination by R(ss)↑ were 182.3 km2 and 0.41 MJ m.2 day.1, respectively. Comparing the daily accumulative and instantaneous values of R(ss)↑ intensity, the difference was about 20 times greater in daily cases than in instantaneous cases. On the other hand, for instantaneous values, the R(ss)↑ intensity accounted for up to 33% of the three components, i.e., direct, diffuse and reflected radiation in winter solstice. In addition, it was estimated that the sea surface reflectance depended on the wind speed. Therefore, in a practical use of this revised model, wind conditions should be considered as a critical factor in estimating R(ss)↑.

The Women Historians : History Deconstructed and Retold in Henry IV, Part 1

Uno Lee Ewha Institute of English and American Studies 2021 Journal of English and American studies Vol.19 No.2

It is generally agreed among critics that the women in Shakespeare’s later history plays are limited to the domestic sphere, thus forming a stark contrast to the women in his first tetralogy who actively engage in the male domain of politics and warfare. However, this paper proposes that the women’s limited roles should never be read as limited characterization, or less significance. By close analysis of the three female characters who briefly appear in Henry IV, Part1, one of the most popular Shakespearean history plays, this paper examines how the personal-political Lady Percy, the warrior-bard Lady Mortimer and the master-mistress Hostess not only deconstruct the traditionally male-dominant historiography by playfully questioning masculine values, but also retell history from an alternative perspective which does not discriminate gender, ethnicity and class. On the other hand, this paper claims that the biggest threat to masculinity in Henry IV, Part 1 is not the three women who display a sense of independence, but in fact the effeminate males such as Falstaff and Prince Hal. Hotspur’s double murder by Prince Hal and later Falstaff signifies that masculinity goes through an endless process of deconstruction and redefinition by none other than men themselves. In conclusion, this paper aims to show how both the male and female characters in Henry IV, Part 1 play an equally significant role in deconstructing written history and the masculine values it embodies, as well as how Shakespeare uses these characters to retell history as an emotionally appealing narrative about humanity which encompasses both the personal and the political, the individual and the universal.

Toughening of Dental Ceramics by Silver Carbonate Paste

Uno M,Ito T,Nonogaki R,Kurachi M,Wakamatsu N,Doi Y 대한치과재료학회 2011 대한치과기재학회 학술대회 Vol.2011 No.5

Persistent Female Voices in the Male Dominant Narrative A Portrait of the Artist as a Young Man

Uno Lee Ewha Institute of English and American Studies 2022 Journal of English and American studies Vol.20 No.1

Regarding the academic discourse on A Portrait of the Artist as a Young Man by James Joyce, gender is unfortunately a less popular topic. Even amongst those who did focus on gender, their interests are largely twofold: either the homosexual elements within the novel, or gender inversions shown through Stephen’s complex psychology. The limitations that both these studies show are twofold as well: i) a tendency to interpret female characters merely as obstacles to Stephen’s artistic growth or evidence of his misogyny, and ii) analysis of the women mainly done through examining Stephen’s relationship to them. Although Joyce admittedly offers meagre textual evidence concerning female characters, I argue that this lack of mention is exactly why female characters have a sense of agency—an agency which has rarely been pointed out, let alone analyzed. By treating the females as complex subjects instead of Stephen's objects, I wish to redefine their roles as being an ultimate source of inspiration for Stephen's artistry because they constantly frustrate his perception of the world. Inspired by reader-response theory—in particular Iser’s, notion of “narrative gaps”—this paper could largely be seen as a creative project of filling in the gaps regarding the women’s characterization which Joyce/Stephen left behind. My analysis specifically focuses on the three named females (Dante, Emma and Mary Dedalus), for they seem to have received less scholarly attention compared to the unnamed prostitutes, the Ballyhoura woman or the bird-woman because of their relatively brief appearances. However, I argue that Dante, Emma and Mary provide a good basis for discussing female agency in the male-dominant narrative A Portrait.

A 4Mbps INFRARED WIRELESS COMMUNICATION SYSTEM DEDICATED TO MOBILE COMPUTING

Uno, Hiroshi,kumatani, Keiji,Okuhata, Hiroyuki,shirakawa, Isao,Chiba, Toru 대한전자공학회 1996 APCCAS:Asia Pacific Conference on Circuits And Sys Vol.1 No.1

A high performance and low power architecture is devised for a 4Mbps infrared wireless communication system dedicated to the mobile computing. In this architecture, 4PPM(4-Pulse Position Modulation) infrared signals detected by an infrared receiver are digitized into TTL interface level pulses, and the digitized pulses are demodulated by a 1-bit digital demodulator. To improve the dynamic range of the link length, a 4PPM demodulator is synthesized to implement a demodulation algorithm which is constructed so as to accommodate the output tolerance of the infrared receiver. A part of experimental results shows that the realized 4Mbps infrared communication system can achieve an error free link in the range of 0-140cm at 90mW power consumption.

Usefulness of Endoscopic Imaging to Visualize Regional Alterations in Acid Secretion of Noncancerous Gastric Mucosa after Helicobacter pylori Eradication

Uno, Kaname,Iijima, Katsunori,Abe, Yasuhiko,Koike, Tomoyuki,Takahashi, Yasushi,Ara, Nobuyuki,Shimosegawa, Tooru The Korean Gastric Cancer Association 2016 Journal of gastric cancer Vol.16 No.3

Purpose: Endoscopic diagnosis of gastric cancer (GC) that emerges after eradication of Helicobacter pylori may be affected by unique morphological changes. Using comprehensive endoscopic imaging, which can reveal biological alterations in gastric mucosa after eradication, previous studies demonstrated that Congo red chromoendoscopy (CRE) might clearly show an acid non-secretory area (ANA) with malignant potential, while autofluorescence imaging (AFI) without drug injection or dyeing may achieve early detection or prediction of GC. We aimed to determine whether AFI might be an alternative to CRE for identification of high-risk areas of gastric carcinogenesis after eradication. Materials and Methods: We included 27 sequential patients with metachronous GC detected during endoscopic surveillance for a mean of 82.8 months after curative endoscopic resection for primary GC and eradication. After their H. pylori infection status was evaluated by clinical interviews and $^{13}C$-urea breath tests, the consistency in the extension of corpus atrophy (e.g., open-type or closed-type atrophy) between AFI and CRE was investigated as a primary endpoint. Results: Inconsistencies in atrophic extension between AFI and CRE were observed in 6 of 27 patients, although CRE revealed all GC cases in the ANA. Interobserver and intraobserver agreements in the evaluation of atrophic extension by AFI were significantly less than those for CRE. Conclusions: We demonstrated that AFI findings might be less reliable for the evaluation of gastric mucosa with malignant potential after eradication than CRE findings. Therefore, special attention should be paid when we clinically evaluate AFI findings of background gastric mucosa after eradication (University Hospital Medical Information Network Center registration number: UMIN000020849).

Installing Ozone Bleaching and Hot Acid Treatment at NPI Mills

Shunichiro Uno,Takeshi Iimori 한국펄프·종이공학회 2006 한국펄프종이학회 기타 간행물 Vol.- No.-

Nippon Paper Industries, Co., Ltd. declared conversion of all the bleaching process to ECF, and most of the production had converted by now. To reduce ECF bleaching cost, we found that depending on electricity supply condition of the mill, utilization of ozone bleaching could be very effective. In addition, hot acid treatment of unbleached pulp also seemed to be effective for hardwood. In this study, several conditions for each technology were examined with the pulps from our own mills to reduce bleaching cost and to keep fiber quality acceptable level. In hot acid treatment study, with mild conditions (temperature lower than 90℃), sufficient reduction in Kappa number and hexenuronic acids content of the pulp were observed, while pulp viscosity was maintained. Moreover, to maintain strength of bleached pulp that subjected both to ozone bleaching and hot acid treatment, recommended Kappa number after ozone bleaching was more than 3. Based on these findings, two of our mills had installed medium-consistency ozone bleaching facilities and three mills installed hot acid treatment. Especially in Yatsushiro mill, both were installed in one bleaching line (A-ZD-E/P-D sequence), and running successfully.

Usefulness of Endoscopic Imaging to Visualize Regional Alterations in Acid Secretion of Noncancerous Gastric Mucosa after Helicobacter pylori Eradication

Kaname Uno,Katsunori Iijima,Yasuhiko Abe,Tomoyuki Koike,Yasushi Takahashi,Nobuyuki Ara,Tooru Shimosegawa 대한위암학회 2016 Journal of gastric cancer Vol.16 No.3

Purpose: Endoscopic diagnosis of gastric cancer (GC) that emerges after eradication of Helicobacter pylori may be affected by unique morphological changes. Using comprehensive endoscopic imaging, which can reveal biological alterations in gastric mucosa after eradication, previous studies demonstrated that Congo red chromoendoscopy (CRE) might clearly show an acid non-secretory area (ANA) with malignant potential, while autofluorescence imaging (AFI) without drug injection or dyeing may achieve early detection or prediction of GC. We aimed to determine whether AFI might be an alternative to CRE for identification of high-risk areas of gastric carcinogenesis after eradication. Materials and Methods: We included 27 sequential patients with metachronous GC detected during endoscopic surveillance for a mean of 82.8 months after curative endoscopic resection for primary GC and eradication. After their H. pylori infection status was evaluated by clinical interviews and 13C-urea breath tests, the consistency in the extension of corpus atrophy (e.g., open-type or closed-type atrophy) between AFI and CRE was investigated as a primary endpoint. Results: Inconsistencies in atrophic extension between AFI and CRE were observed in 6 of 27 patients, although CRE revealed all GC cases in the ANA. Interobserver and intraobserver agreements in the evaluation of atrophic extension by AFI were significantly less than those for CRE. Conclusions: We demonstrated that AFI findings might be less reliable for the evaluation of gastric mucosa with malignant potential after eradication than CRE findings. Therefore, special attention should be paid when we clinically evaluate AFI findings of background gastric mucosa after eradication (University Hospital Medical Information Network Center registration number: UMIN000020849).

Reflecting on Two CulturalMirrors : The Roles of Shakuhachi and Biwa in Two Orchestral Works by Toru Takemitsu

Yayoi Uno 서울대학교 동양음악연구소 1998 동양음악 Vol.20 No.-