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Introspection and countermeasure on fair value information under financial crisis
MEN Rong,Cui Yongmei,MA Zhong 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10
Based on behavior financial theory, the paper illustrates that due to increasing of arbitrage cost and noisy investors, fair value of assets based on market transaction will depart away from their inherent value. Invesors and creditors may rectify their value information for continuously operating enterprises by making deep analysis on enterprises" information like market environment, core competitive ability, cash flow and risk management.
Manli Li,Enqi Jin,Zhiyong Qiao,Rongli Zhao 한국섬유공학회 2018 Fibers and polymers Vol.19 No.3
In order to study the effects of alkyl chain length of aliphatic dicarboxylic ester (ADE) monomers on enzymatic and hydrolytic degradation properties of aliphatic-aromatic water-soluble copolyesters for warp sizing, dimethyl terephthalate, dimethyl isophthalate-5-sulfonic sodium, and ADE monomers with various alkyl chain lengths were copolymerized through a two-step method, i.e. transesterification and polycondensation. The enzymatic and hydrolytic degradation properties of the copolyesters were studied in terms of reduction rates of molecular weight, glass transition temperatures, and surface morphology after being cultivated for 24-96 h. It was found that, enzymatic degradation of the copolyesters strongly depended on alkyl chain length of ADE monomers. After being enzymatically degraded for 96 h, reduction rate of molecular weight of the copolyester using dimethyl malonate as ADE monomers could reach 22.2 %. Meanwhile, the hydrolytic degradation of the copolyesters was not directly related to the alkyl chain length.
Cho Rong Park,Chang Wook Jo,Kyu Sik Yoon,Min Ah Kang,Eun Jin Kang,Hye Ri Kwon,Mi Ja Seo,Yong Man Yu,Young Nam Youn 한국응용곤충학회 2009 한국응용곤충학회 학술대회논문집 Vol.2009 No.10
To identify DNA markers linked to a elytra polymorphism, amplified fragment length polymorphism (AFLP) analysis was performed on DNA samples from four each colour pattern individuals (2 females and males), for example, succinea 1, succinea 2, conspicua, and spectabilis. As a result of performing AFLP analysis with the restriction endonuclease combination EcoRⅠ and Mse I, total of 2,269 AFLP fragments which were specific to succinea, conspicua and spectabilis was identified using 24 different AFLP primer combinations. Among these 2,269 fragments, 16 bands which were the most specific to one color patterns were isolated, cloned and sequenced. Subsequent UPGMA cluster analysis revealed that population of H. axyridis was divided four major group and these genetic tree showed that H. axyridis elytra colour diversity was affected by genetic polymorphism. It is considered that these genetic analyses may be facilitated the understanding of molecular genetic mechanism related with the wing colour pattern formation in this species.
반응표면분석을 이용한 청국장 제조시 마늘의 첨가조건 최적화
황초롱 ( Cho Rong Hwang ),심혜진 ( Hye Jin Sim ),김경민 ( Gyeong Min Kim ),조계만 ( Kye Man Cho ),김정환 ( Jeong Hwan Kim ),신정혜 ( Jung Hye Shin ) 한국식품조리과학회(구 한국조리과학회) 2013 한국식품조리과학회지 Vol.29 No.6
마늘을 이용한 청국장의 제조조건을 최적화 하고자 중심합성계획에 따라 마늘의 첨가량(X1), 마늘 열처리시간(X2) 및 청국장 발효시간(X3)을 독립변수로 하고, 점질물 생성량(Y1), 산도(Y2), 아미노태 질소량(Y3), γ-GTP(Y4) 및 ABTS 라디칼 소거능(Y5)을 종속변수로 하여 반응표면분석을 실시하였다. 점질물 생성량의 정상점은 최대점으로 실제변수인 마늘의 첨가량이 6.53%, 열처리 시간 6.81분, 청국장 발효시간 55.18시간에서 13.02%의 최적 값을 보였다. 산도는 청국장의 발효시간이 길어질수록 증가하였으며, 최소값인 0.50%를 나타내는 마늘 첨가량의 실제변수는 7.75%, 열처리 시간은 3.42분, 청국장 발효는 58.60시간이었다. 아미노태 질소 함량은 80.58∼158.82 mg% 범위였는데 정상점은 안장점으로 능선분석을 통해 얻어진 아미노태 질소의 최고값은 156.97 mg%였다. 이 때 마늘 첨가량 및 열처리 시간은 각각 6.21% 및 14.85분, 청국장 발효시간은 58.04시간이었다. γ-GTP 활성은 353.66mU/mL의 최대값을 가질 때, 마늘 첨가량, 마늘 열처리 시간 및 청국장 발효시간이 각각 5.73%, 6.99분, 57.96시간 이었다. ABTS 라디칼 소거능은 마늘 첨가량과 청국장 발효시간을 낮추고 마늘의 열처리 시간을 높이는 경우 76.43%의 최고값 얻을 수 있었는데, 이에 따른 실제변수의 마늘의 첨가량과 열처리시간은 각각 3.78% 및 14.28분과 청국장 발효시간은 57.99시간이었다. 이상의 결과를 종합하여 볼 때 마늘이 첨가된 청국장 제조를 위해 마늘은 불린 콩 무게 대비 3.78~7.75%로 첨가하되 3.42~14.85분의 범위에서 스팀가열한 후 사용하며, 55~59시간 정도 발효시키는 것이 적합하였다. This study was performed to determine the optimal composition of Cheonggukjang added with garlic. The experiment utilized a central composite design (CCD). The evaluation was carried out by means of response surface methodology (RSM), which included 18 experimental points with three independent variables : the content of the garlic (1.3∼9.7%, X1), the steaming time of garlic (0∼15.1 min, X2), and the fermentation time of Cheonggukjang (48.2∼71.8 h, X3). The viscous substance (Y1), acidity (Y2), amino-type nitrogen (Y3), γ-GTP activity (Y4) and ABTS radical scavenging activity (Y5). were assessed in four replicates with five dependent variables. The maximum content of the viscous substance was 13.02% at 6.53% (X1), 6.81 min (X2) and 55.18 h (X3). The acidity was increased when the fermentation time was longer, and the minimum acidity point was 0.50% at 7.75% (X1), 3.42 min (X2) and 58.60 h (X3), respectively. The content of the amino-type nitrogen at the experimental range studied was was 80.58∼158.82 mg%, and the stationary point was at saddle point. Using ridge analysis, the maximum point was 156.97 mg% at 6.21% (X1), 14.85 min (X2) and 58.04 h(X3). The optimum conditions of γ-GTP activity was 5.73% (X1), 6.99 min (X2) and 57.96 h(X3), respectively, at the maximum point was 353.66 mU/mL. The maximum point of ABTS radical scavenging activity was 76.43% at 3.78% (X1), 14.28 min (X2) and 57.99 h(X3) at the saddle point, when the garlic steaming time was longer.
Hang Yu,Man Ding,Qian Cao,Rumeng Zhou,Jiajia Yao,Rong Fu,Yue Liu,Zheman Xiao,Zuneng Lu 대한신경과학회 2023 Journal of Clinical Neurology Vol.19 No.6
Background and Purpose We aimed to determine the clinical features of Miller Fisher syndrome (MFS) in southern China and compare them with those presenting in other countries. Methods We collected the medical records of patients diagnosed with MFS during 2013–2016. We analyzed the age, sex, onset season, precursor events, clinical symptoms and signs, findings of nerve conduction studies (NCS), cerebrospinal fluid (CSF), therapeutic remedies, nadir time, and length of hospital stay of patients with MFS in southern China. We concurrently compared the differences between urban and rural areas and between patients with incomplete ophthalmoplegia (IO) and complete ophthalmoplegia (CO). Results The study enrolled 72 patients: 36 from rural areas and 36 from urban areas, and 50 males and 22 females. The mean age at onset was 47.72 years, and 30 (41.7%) and 21 (29.2%) patients developed MFS in spring and winter, respectively. The typical triad of ophthalmoplegia, ataxia, and areflexia was observed in 50 (69.4%) patients. A history of upper respiratory tract infection 1 week before onset was found in 52.8% of the patients, while 5.6% experienced gastrointestinal infections and 48 (73.8%) exhibited albuminocytological dissociation in the CSF study. Only 26 (36.1%) patients presented abnormalities in NCS. Moreover, restricted outward eyeball movement presented in 83.5% of the patients with classic MFS and acute ophthalmoplegia, and bilateral symmetrical ophthalmoplegia presented in 64.2%. With the exception of the higher proportion of NCS abnormalities in urban areas (47.2% vs. 25.0%), urban and rural differences were insignificant regarding sex ratio, age at onset, high-incidence season, precursor events, disease characteristics, and albuminocytological dissociation in the CSF. Furthermore, patients with CO were older than those with IO (64.53±7.69 vs. 43.19±14.40 years [mean±standard deviation], p<0.001). Conclusions The patients with MFS were mostly male and middle-aged, and most presented in winter and (especially) spring. More than half of the patients had clear precursor events, most of which were classic MFS with the typical triad. More than 70% of the patients presented albuminocytological dissociation in the CSF. NCS abnormalities were uncommon in MFS. The age at onset was lower in patients with IO than in patients with CO; bilateral symmetrical extraocular muscle paralysis was the most common symptom, and the external rectus was the most frequently involved muscle.
최만영,김정환,변영웅,Choi, Man-Young,Yang, Zhong-Qi,Wang, Xiao-Yi,Tang, Yan-Long,Hou, Zhen-Rong,Kim, Jeong Hwan,Byeon, Young Woong Korean Society of Applied Entomology 2014 한국응용곤충학회지 Vol.53 No.2
Anastatus orientalis Yang et Gibson(Hymenoptera : Eupelmidae) is the egg parasitoid of lantern-fly Lycorma delicatula. The natural parasitism showed that: (1)the highest parasitism rate of egg masses was 68.96% in Yantai Shandong; (2)the highest parasitism rate of eggs was 32.98% in Haidian Beijing; (3)the eggs of parasitoids hatched and emerged earliest in Yangling Shaanxi; emergence time of different populations in Yantai, Guangang Tianjin, Qinhuangdao Hebei and Haidian was similar; (4) the sex ratios were various among the populations ranging from 1.92 to 1.94; (5) parasitism rates of egg masses on Populus sp., Salix sp. and Toona sinensis were not significantly different, the highest parasitism rate of egg masses was 64.3% on T. sinensis, and the lowest rate was 27.4% on Ailanthus altissima; (6)parasitism rates of eggs on Populus sp., Salix sp., T. sinensis and A. altissima were not significantly different, about 30% averagely. 꽃매미(Lycorma delicatula)의 천적인 벼룩좀벌 일종(Anastatus orientalis Yang et Gibson(Hymenoptera : Eupelmidae))의 자연 상태에서 기생율을 조사한 결과: (1) 산동성 Yantai 에서 가장 높은 69.0%의 꽃매미 난괴가 기생 당하였고; (2) 최고 기생율은 33.0%로 북경시 하이디엔(Haidian) 지역에서 관찰되었고; (3) 기생봉의 알은 산시성의 양링(Yangling)에서 가장 빨리 부화하였으며, 천진시의 옌타이(Yantai)와 광앙(Guangang) 지역, 하북성의 친황다오(Qinhuangdao), 하이디엔(Haidian)에서 약간의 차이를 보였으며; (4) 성비는 채집된 지역에 따라 1.3에서 1.9로 다양하였고; (5) 꽃매미 난괴에 대한 기생율은 기주식물인 Populus sp., Salix sp. Toona sinensis에서 유의할 만한 차이가 관찰되지 않았으며, 최고기생율은 T. sinensis에서 64.3%로 나타났고, Ailanthus altissima에서는 27.4%로 가장 낮았다. (6) 꽃매미 알에 대해서도 꽃매미 알이 발견된 기주식물별로 차이가 없었고, 평균 30.0%의 기생율을 나타냈다.
Quality Evaluation on Use of Camellia Oil as an Alternative Method in Dried Seaweed Preparation
Jae Kyeom Kim,Hui Gyu Park,Cho Rong Kim,Ho-Jeong Lim,Kye Man Cho,Jine Shang Choi,Dong-Hoon Shin,Eui-Cheol Shin 한국식품영양과학회 2014 Preventive Nutrition and Food Science Vol.19 No.3
The fatty acid and volatile compound compositions of camellia oil were analyzed in this study. The impacts of the replacement of conventional vegetable oil with camellia oil on the sensory attributes of dried seaweed were also determined. C18:1 (83.59%), followed by C16:0 and C18:2, were the most abundant fatty acids in camellia oil. A total of 11 and 32 volatile compounds were identified in camellia oil and sesame oil, respectively. In the preference test, the camellia oil samples received a higher, although insignificant, liking rating in overall acceptability of appearance. Overall, there were no differences between the sensory attributes of camellia oil and sesame oil. This finding, combined with the unique fatty acid composition, thermal stability, and health benefits of camellia oil indicate that further study into the use of camellia oil in foods is warranted.