• Title/Summary/Keyword: Period

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Multivariate Causal Relationship between Stock Prices and Exchange Rates in the Middle East

  • Parsva, Parham;Lean, Hooi Hooi
    • The Journal of Asian Finance, Economics and Business
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    • v.4 no.1
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    • pp.25-38
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    • 2017
  • This study investigates the causal relationship between stock prices and exchange rates for six Middle Eastern countries, namely, Egypt, Iran, Jordan, Kuwait, Oman, and Saudi Arabia before and during (after) the 2007 global financial crisis for the period between January 2004 and September 2015. The sample is divided into two sub-periods, that is, the period from January 1, 2004 to September 30, 2007 and the period from October 1, 2007 to September 30, 2015, to represent the pre-crisis period and the post-crisis period, respectively. Using Vector Autoregressive (VAR) model in a multivariate framework (including two control variables, inflation rates and oil prices) the results suggest that in the case of Jordan, Kuwait and Saudi Arabia, there exists bidirectional causalities after the crisis period but not the before. The opposite status is available for the case of Iran. In the case of Oman, there is bidirectional causality between the variables of interest in both periods. The results also reveal that the relationship between stock prices and exchange rates has become stronger after the 2007 global financial crisis. Overall, the results of this study indicate that fluctuations in foreign exchange markets can significantly affect stock markets in the Middle East.

Effects of Rearing Temperature on Larval Survival and Growth and on Reproductive Traits of Palaemon serrifer (Decapoda: Caridea: Palaemonidae)

  • Kim, Sung-Han
    • Fisheries and Aquatic Sciences
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    • v.13 no.4
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    • pp.308-314
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    • 2010
  • Larvae of Palaemon serrifer were reared in the laboratory under three different temperature regimes ($15^{\circ}C$, $20^{\circ}C$, $25^{\circ}C$) to study the effects of rearing temperature on larval survival and growth, as well as other traits such as embryo volume, number of embryos (fecundity), incubation period, development. Mode and development period. Growth pattern was analyzed by measuring the molt increment and intermolt period. The intermolt period consistently increased with size and instar number and was shortest at $25^{\circ}C$. However, molt increments generally decreased with instar number. Number of embryos varied from 552 to 1355. The relationship between the number of embryos and carapace length was expressed by the equation (fecundity) y=2.7744x+0.208 ($R^2$=0.7961). Egg volume was a primary factor affecting other life-history traits. Egg volume was $0.078\;m^3$, which is relatively small thus embryos exhibited a relatively short incubation period and a comparatively short development period, and the nutritional mode was planktotrophic. Brood production was followed by a fast parturitional pattern. Most ovigerous females had mature ovaries when the parturial molt occurred soon after eclosion.

The Analysis of Freaky Pattern Expressed on Modern Man's Wear - Focusing on Freaky Pattern of Modern Man's Wear in Edo Period - (현대 남성복에 표현된 기괴적(奇怪的) 디자인 분석 - 에도(江戶) 시대 남성복의 기괴적 문양을 중심으로 -)

  • Yeo, Seungwha;Lee, Sang-Eun
    • Journal of the Korea Fashion and Costume Design Association
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    • v.18 no.4
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    • pp.117-124
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    • 2016
  • This study considered about freaky design of men's wear in Edo period, and also compared and analyzed it to modern men's wear. The purpose for this study is to contribute to the development of modern men's wear by this analysis. Edo period was a male dominated period, so culture of showing off their powers appeared in their fashion as symbols of skulls, monsters or tattoos. Kabuki culture used this kind of social background and it incited the actors roles and clothes to become more famous. 2016-17 F/W, 2017 S/S modern men's wear expressed more various freaky design, so it was able to be classed as shapes, pattern, materials and total coordination. Edo period just expressed freaky design by symbols however, freaky design in modern men's wear is showing more various expressions. This study can conclude that freaky design usually shows weird, peculiar, scary and dampish images. Also freaky design showed in the persuit of various choices including parade of power in modern men's wear.

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Fluttering Characteristics of the Ropes and Nets as an Active Stimulating Device inside the Cod End of a Trawl Net

  • Kim, Yong-Hae
    • Fisheries and Aquatic Sciences
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    • v.16 no.2
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    • pp.101-108
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    • 2013
  • An active stimulating device (ASD) consisting of a net panel or ropes fluttering in the turbulence inside the cod end was effective in driving fish near the cod end to reduce juvenile by-catch. The fluttering characteristics of the rope and net panel were examined by video observations and analyzed for fluttering amplitude and period in a water channel and in field experiments with a bottom trawl. The amplitude ratio of the fluttering ropes or nets in the tank test increased with the fluttering index as the diameter of the twine, mesh size, flexibility, and flow velocity changed, whereas the period decreased with the above factors. In bottom trawl experiments, the range of mean depth difference in the fluttering net panel was 12-17% of the length of the fluttering net, and the period of depth difference or three-dimensional (3D) tilt was revealed, with shorter ones ranging from 2 to 6 s. The amplitude as depth difference and period from field measurements were similar to those of nets in tank experiments and also to the period of 3D flow velocity inside the cod end. These results could be used to design an ASD that could be used for to the cod end of actual towed fishing gear to reduce juvenile by-catch.

The Effects of Periodic Fuel Supply on the Flame Stability and Soot Formation (주기적 연료 공급이 비애혼합 화염 특성에 미치는 영향에 관한 연구)

  • Lee, Sang-Hyeop;Jeon, Dae-Hyeon;Lee, Byeong-Jun
    • Transactions of the Korean Society of Mechanical Engineers B
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    • v.26 no.1
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    • pp.94-100
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    • 2002
  • The effects of periodic fuel supply on the nonpremixed flame stability and soot formation were experimentally studied. A solenoid valve was used to control the period of fuel supply. The laser induced incandescence technique was used to visualize cool: volume fraction profile. The flame base shape was changed significantly by the fuel supply period and partially by the fuel flowrates. The portion of bluish flame near the flame base became larger as the period increased. When the period was long, two flames coexisted within one period. It seemed that the characteristic of flame stability were repeated with 4.68m change of fuel supply line length. The soot mass measurements and soot volume fraction measurements revealed that the maximum suppression of soot by the perioic fuel supply was approximately 75% , which occurred when the occurred when the fuel supply period was relatively long.

엔비로의 첨가.급여가 계사내 유해가스와 육계의 생산성에 미치는 영향

  • 류경선;박재홍;서경석;김상호
    • Proceedings of the Korea Society of Poultry Science Conference
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    • 2000.11a
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    • pp.66-69
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    • 2000
  • To investigate the influence of feeding Enviro on noxious gas of environmental controlled poultry house and performance of broiler chicks. Diets contained 21.5, 19.00 CP and 3,100, 3,200 kcal/kg ME, respectively for starting and finishing period. Enviro were supplemented with 0, 0.2, 0.4, 0.6 and 0, 0.1, 0.2, 0.3% in Expt 1and 2, respectively. CO$_2$and ammonia gas were periodically detected for finishing period in Expt 1. Weight gain, feed intake and feed conversion(FC) were measured for five weeks in Expt. 2. ND antibody titer were also measured after primary and booster vaccination at two and four weeks old. In Expt 1, chicks fed 0.2% Enviro showed 32.8ppm and 1719 ppm of ammonia gas, CO$_2$in poultry house and significantly decrease compared to that of control(P<0.05). Weight gain of chicks fed 0.1 and 0.2% Enviro was significantly increased for starting period(P<0.05) but was not statistically different for finishing period. Feed intake was no significantly different of all treatments. Chicks showed lower FC in 0.3% Enviro treatment for starting period(P<0.05) than others, but was not for finishing period. ND AB titet of chicks fed Enviro was prone to be higher than control, but was not significantly different. The results of these experiments indicated that 0.1% Enviro supplement would be maximize the performance of broiler chicks.

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Cross-sectional study: prevalence of subclinical ketosis in dairy cattle at Chungnam province

  • Faruk, Md. Shohel Al;Park, Byeongsu;Jin, Sujeong;Ha, Seungmin;Cho, Yong-il
    • Korean Journal of Veterinary Service
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    • v.41 no.2
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    • pp.85-89
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    • 2018
  • This study was conducted to demonstrate the prevalence of subclinical ketosis in dairy cattle based on days in milk and herd level. Four to five blood samples were collected in five different lactation periods and analyzed for ${\beta}$-hydroxybutyrate using a Portable Ketone Test Kit. Subclinical ketosis was observed in 12 herds at prevalence of 6.3~57.1% depending on herd level, with four herds showing more than 40% subclinical ketosis prevalence. The distribution of subclinical ketosis in the early lactation period, high yield lactation period, mid lactation period, late lactation period and dry period was 9.5%, 27.5%, 36.8%, 27.9% and 12.5%, respectively. Clinical ketosis was only observed during early lactation (9.5%) and mid lactation (2%) period.

Measurements at Kosan, Cheju Island during the Summer, 1994: (I) Aerosol Ion Composition (제주도 고산에서의 1994년 여름 측정: (I) 입자 이온 조성)

  • 김용표;김성주;진현철;백남준;이종훈;김진영;심상규;강창희;허철구
    • Journal of Korean Society for Atmospheric Environment
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    • v.12 no.3
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    • pp.297-305
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    • 1996
  • Aerosol measurements were carried out at Kosan, Cheju Island, Korea for the period from July 20 to August 10, 1994. Total suspended particles were collected by high volume samplers and PM 2.5 particles with gaseous volatile species were collected by a filter pack sampler and their ionic composition are analyzed. The average mass concentration of PM 2.5 particles was comparable to that of PM 3 particles collected during March, 1994 at the same site but the average non sea-salt sulfate concentration was higher that that of PM 3 particles, implying the fraction of anthropogenic air apllutants during this period is higher than that during March, 1994. During the measurement period, two distincitive patterns were observed, high concentrations of mass and water soluble ions were observed between July 20 and August 1 while those during after August 2 were low. Back trajectory analysis results show that air masses arriving at Kosan during the earlier period were mainly from Korea and Japan while those during the later period were from the North Pacific Ocean. It is suggested that the particle ion concentrations during the later period are marine background concentrations at Kosan during the summertime.

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Tainting and Depuration in Fish by Petroleum Hydrocarbon (유류오염이 어체에 미치는 영향과 유성분 제거에 관한 연구)

  • 강석중;최병대
    • Journal of Aquaculture
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    • v.10 no.2
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    • pp.189-197
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    • 1997
  • A series of short (8 hours) and long term (96 hours) exposure studies was conducted on a laboratory scale to evaluation (1) the threshold concentrations of petroleum hydrocarbon in seawater which can lead to tainting problems in yellow tail (Seriola quinqueradiata) and (2) the time to recover (depuration period) once the tainting has occurred. The water-soluble fraction (WSF) of crude oil was prepared by stirring the oil with cold seawater. The main component of the WSF were low-boiling aromatics, although these were only al small proportion of the starting oil. From the sencory evaluation it was concluded that the threshold hydrocarbon levels in seawater which will impart a taint in yellow tail fillets within a 8-hour exposure period (short exposure period) are in the range of 0.4 to 1.0 ppm and within a 96-hour exposure period (long exposure period) are in the range of 0.2 to 0.5 ppm. Depuration trials were carried out with WSF from crude oil. The fish were exposed for 48 hours to concentration of 2.5 ppm hydrocarbons. After 48-hour exposure period, the fish were allowed to depurate in fresh, uncontaminated seawater. Depuration time for these fish was 10 days. The taste panelists were able to detect the contaminated fillets very easily while the depurated fish could not be distiguished from the control.

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The Effect of Task-oriented Arm Movements and Muscle Enhancement Program Using Elastic Bands on Upper Limb Muscle Strength and Activities of Daily Living of Mitochondrial Myopathy Patient -Single subject design- (Mitochondrial Myopathy 환자에서 과제지향적 상지운동과 탄성밴드를 이용한 기능적 근력증진 프로그램이 상지근력과 일상생활활동에 미치는 영향 -단일사례연구-)

  • Park, Hyung-Ki;Lee, Kang-Sung
    • PNF and Movement
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    • v.8 no.1
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    • pp.11-19
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    • 2010
  • Purpose : The purpose of this study was to the effect of task-oriented arm movements and muscle enhancement program using elastic bands on limb muscle strength and activities of daily living of mitochondrial myopathy patient. Method : Single-subject experimental research design was applied to. AB Design was adopted. The study period was approximately four weeks. A baseline period of the three sessions of the experiment, the treatment period B, 3 sessions were conducted. Baseline period to observe the patient's daily life bardel index was measured as an independent feature, MMT as a limb muscle strength was assessed by measuring early. During the period of treatment with serabaendeu limb strength training 30 minutes after the break five minutes after the treatment using MMT limb muscle strength were evaluated. Task-oriented exercise program, and who exercise a week as a treatment was carried out in 30 minutes. Result : All of the scores for each sessional period of treatment when compared to base line and upper limb muscle strengthening exercises on the subjects that did not change significantly. Conclusion : If the muscles and nervous system involvement in patients with symptoms such as muscle weakness and paralysis of upper extremity functional use is difficult.

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