• Korean Journal of Agricultural Science
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• v.46 no.3
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• pp.451-460
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• 2019

The aim of this study was to investigate the effects of dietary supplementation of acetaminophen on feed intake and growth performance of Hanwoo steers in the summer. Eight steers participated in a twelve-week experiment. The steers were randomly assigned into one of two treatments: Control and acetaminophen supplementation. Commercial acetaminophen was top-dressed to a concentrate mix at a rate of 3 g/kg based on dry matter. Individual feed intake was measured daily during the entire period of the experiment, and the intake of forage and concentrate diet were measured separately. The body weight of the steers were measured every 4 weeks. During the experimental period, ambient temperatures were recorded using an automatic temperature and humidity recorder. Acetaminophen had no effect (p > 0.05) on body weight, average daily gain, dry matter intake (DMI) and feed conversion ratio. Numerically, total DMI and concentrate DMI in the acetaminophen treated group were 5.7% and 7.6% lower than those of the control group, respectively, and the daily gain was 9.7% higher. As a result, the feed conversion rate of the acetaminophen treated group improved by 17% compared to the control; however, it was not statistically significant (p = 0.237). The results of this study suggest that acetaminophen supplementation may reduce the feed conversion ratio of Hanwoo steers under high temperature stress. However, further studies are needed to confirm the optimal level of acetaminophen supplementation which has a significant effect on the intake and weight gain of Hanwoo steers in the summer.

• Korean Journal of Fisheries and Aquatic Sciences
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• v.12 no.3
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• pp.143-153
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• 1979

A study on tile processing of liquefied fish protein with a long self life and good solubility has been carried out for the effective utilization of sardine. The whole sadine was chopped, homogenized with same amount of water and then hydrolyzed by the addition of commercial proteolytic enzyme. The hydrolysate was centrifuged and the supernatant was decolorized with active carbon, desodorized by azeotropic distillation with toluene, xylene and cyclohexane. The liquefied sardine protein was then concentrated by rotary vacuum evaporator with the addition of starch. The use of $0.2\%$ commercial proteolytic enzyme to the weight of the whole sardine showed the optimum hydrolysis ratio at $55^{\circ}C$ for 4 hours. The liquefied sardine protein could be decolorized and also desodorized by the treatment with $15\%$ active carl]on at room temperature for 30 minuted. In the view point of lipid concentration and the solubility of the product, the liquefied sardine protein prepared by enzymic hydrolysis from the sardine protein concentrate was better than that prepared by enzymic hydrolysis from the whole sardine and sardine protein concentrate.

• Asian-Australasian Journal of Animal Sciences
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• v.13 no.9
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• pp.1249-1254
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• 2000

A study was conducted to evaluate the replacement value of Leucaena leucocephala and Gliricidia sepium as nitrogen sources in commercial type supplements for dairy goats. Six crossbred $(Toggenburg{\times}Saanen)$ goats at late stage of lactation were allocated to three dietary treatments in a double $3{\times}3$ Latin square design. The animals were offered rhodes grass (Chloris gayana) hay ad libitum and supplemented with either Leucaena-based concentrate (LBC), Gliricidia-based concentrate (GBC) or commercial based concentrate (CC). Voluntary food intake, milk yield and composition and changes in live weight were measured. The total dry matter (DM) intake was higher (p<0.05) in goats fed GBC than CC (1385 vs 1331 g/d). The DM intake for LBC (1343 g/d) was similar to CC (1331 g/d). The DM intake of hay was also higher (p<0.05) in goats fed GBC (834 g/d) than those receiving LBC or CC (789, 782 g/d, respectively). Animals supplemented with GBC recorded positive (11 g/d) weight gain while the other groups lost weight (13, 19 g/d) for LBC and CC respectively, although these differences were not statistically significant (p>0.05). The composition of milk were: butterfat 58, 49 and 55 g/kg; crude protein 37.0, 35.4 and 36.1 g/kg; lactose 33, 29 and 30 g/kg; Ash 8.5, 8.5 and 7.9 g/kg and total solids 136.5, 121.9 and 129.0 g/kg, for goats fed LBC, GBC and CC respectively. There were no differences in the composition of milk due to these dietary treatments. At the end of performance trial, a digestibility trial was conducted using 6 female goats allocated to the three treatments (LBC, GBC and CC) in an incomplete randomized block design and each goat received a different supplement in each of two successive periods. There were no differences in nutrient digestibility except for DM, which was higher (p<0.05) in CC compared to the other treatments (615, 622, 720 g/kg for LBC, GBC and CC, respectively). Economic analysis showed that CC diet was more expensive (0.20 US$/kg) and had a lower margin over supplementation (0.11 US$) compared to LBC and GBC (0.13 vs 0.12 US$/kg and 01.5 vs 0.12 US$, respectively). It is concluded that the Leucaena and Gliricidia could contribute as nitrogen sources in compounded diet supplements without any detrimental effects on production in dairy goats.

• Journal of Aquaculture
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• v.11 no.1
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• pp.39-48
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• 1998

Growth performance and excretions of nitrogen (N) and phosphorus (P) were investigated with carp (Cyprinus carpio) with carp (Cyprinus carpio) grower fed a low pollution diets (A and B) and commercial ones (Com-1 and Com-2). A recirculated rearing system (Exp. I) and a floating net cage system (Exp. II) were employed for two feeding trials in which fish having an initial body weight of 152g and 193g were fed for 41 an 39 days, respectively. The highest weight gain, daily growth rate and protein efficiency ratio were found (P<0.05) in fish fed diet A containing 10% fish meal and 2% monocalcium phosphate (MCP) for both experiments. They also showed the lowest feed conversion ratio and daily feeding ration among treatments. Fish fed diet B containing 10% fish meal, 5% fish protein concentrate and 1% MCP showed weight gain and FCR more improved (P<0.05) than those fed commercial diets. In all groups, whole body cmpositions were not greatly different among treatment, and protein and P contents in final fish ranged from 14.3 to 15.6% and from 0.39 to 0.48%, respectively. Fish fed diet A excreted the least N which were 38.3 in Exp. I and 39.6g/kg gain in Exp. II. However, the values found in fish fed two commercial diets amounted to 59.1 and 58.9g, respectively. A significant decrease in P excretion was also found in fish groups fed diets A and B. In Exp. I, a reduction of 53.4% was shown in fish fed diet A, compared to the averaged value (18.5g P/kg gain) of two commercial groups. In Exp. II conducted using the floating net cages, fish fed diet B excreted the least P (8.6g/kg gain) among the treatment, which was followed by fish fed diet A, showing 48.6% reduction compared to the average value (18.5g/kg gain) for fish fed two commercial diets. The present results clearly showed that N and P excretions from fish culture could be significantly reduced by using the low pollution diet.

• 한국정보통신설비학회:학술대회논문집
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• 2007.08a
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• pp.64-68
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• 2007

Commercial WiBro and 3G HSDPA services are launched last year in order to provide high speed wireless Internet access and multimedia service. Currently mobile communication service providers concentrate on the deployment of indoor mobile network since indoor traffic is remarkably increased. For fine indoor wireless communication, an installation of access point system via Public IP network which is called Femtocell is required. The development of indoor Femtocell system must be considered in the viewpoint of low hardware complexity, cost reduction, interlocking with WiBro/HSDPA network without change of network component and easy element management. In this paper, we review the implementation issue and technology of dual mode AP which provides WiBro and HSDPA signal to the user simultaneously. Especially, we describe on the HSDPA Femtocell standardization status and possible 3 types of HSDPA communication module development design. Furthermore we analyze the merits and demerits of each HSDPA Femtocell design type and propose a system which enables handover between indoor HSDPA Femtocell and outdoor commercial HSDPA mobile network.

• Culinary science and hospitality research
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• v.14 no.4
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• pp.119-133
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• 2008

This study researched the effect of initial expenses for food service business and shop characteristics on the motive of starting business through questionnaires(from April to May, 2008). The results are as follows. First, for the hypothesis, 'the motive of starting business depends on its initial expenses', the significance probability of good commercial area was .015 and that of retirement was .020, showing statistically significant difference. F values were 2,889 and 2.734 each, which showed significant difference by 0.001. Second, for the hypothesis, 'the motive of starting business depends on shop characteristics', the significance probability of the accomplishment desire, the future stability and the retirement were .011, .009, and .025 each, showing statistically significant difference. F values were 2,616, 3.034 and 3.177 each, showing significant difference by .001. Lastly, initial expenses for business and shop characteristics showed significant difference according to the demographical variables on the motive of starting business. This study shows the problem of starting business with no extra funds. It is important to reflect the opinions of founders about the commercial building lease protection law for them to concentrate on business. The founders should research for menu and systems and be aware of the tendency of the industry for sure.

• The Journal of Asian Finance, Economics and Business
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• v.10 no.2
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• pp.321-331
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• 2023

The radical Coronavirus (COVID-19) has swiftly unfolded everywhere globally; it continues to unfold uncontrollably and critically, affecting all economies. The pandemic is not only a health issue but also has distinct effects on the global economy and enterprises. The impact of this novel Coronavirus is also well-documented in the financial sector. This study aims to investigate the impact of COVID-19 on corporate governance and banks' financial performance. Moreover, this study also examines the impact of corporate governance on banks' performance in Bangladesh. The study uses return on equity, return on assets, non-performing loans, return on investment, and earnings per share to measure the performance of the banks. And characteristics of corporate governance are measured by board size, number of independent directors on the board, number of female directors on the board, number of board meetings, and number of members in the audit committee. The study uses descriptive statistics, correlation analysis, t-test, and panel regression analysis. The study finds that COVID-19 significantly impacts the banks' performance and some corporate governance characteristics. The study also reveals that corporate governance significantly impacts the financial performance of commercial banks. The findings of this study suggest that banks should concentrate more on corporate governance.

• Proceedings of the Korean Powder Metallurgy Institute Conference
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• 2000.11a
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• pp.10-10
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• 2000

Mechanical alloying (MA) is a powder metallurgy processing technique involving cold welding, fracturing, and rewelding of powder particles in a high-energy ball mill. This has now become an established commercial technique in producing oxide dispersion strengthened (ODS) nickel- and iron-based materials. The technique of MA is also capable of synthesizing non-equilibrium phases such as supersaturated solid solutions, metastable crystalline and quasicrystalline intermetallic phases, nanostructures, and amorphous alloys. In this respect, the capabilities of MA are similar to those of another important non-equilibrium processing technique, viz, rapid quenching of metallic melts. however, the science of MA is being investigated only during the past ten years or so. The technique of mechanochemistry, on the other hand, has had a long history and the materials produced this way have found a number of technological applications, e.g., in areas such as hydrogen storage materials, heaters, gas absorber, fertilizers. catalysts, cosmetics, and waste management. The present talk will concentrate on the basic mechanisms of formation of non-equilibrium phases by the technique of MA and these aspects will be compared with those of rapid quenching of metallic melts. Additionally, the variety of technological applications of mechanically alloyed products will be highlighted.

• Asian-Australasian Journal of Animal Sciences
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• v.13 no.2
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• pp.188-191
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• 2000

Appetite stimulant ether-soluble neutral extract of a high-grain compound feed was separated into four fractions with an open column of silica gel chromatograph using four carrier solutions containing n-pentane and diethyl ether as 100:0 (Fraction A), 90:10 (Fraction B), 75:25 (Fraction C) and 0:100 (Fraction D). The stimulative effects of the fractions were examined by comparing the intake of hay (with or without the fractions) in two-choice test bioassays with cattle. The Fractions A, B and C of the neutral extract stimulated (p<0.05) hay consumption in cattle, whereas Fraction D had no effect on selective feeding when compared with the control fraction. Furthermore, Fractions A, B and C had higher (p<0.05) feeding stimulative indices (FSI) than that of the Fraction D. The results suggest that chemical stimulants to increase palatability of hay are present in the neutral Fractions A, B and C of high-grain concentrate.

• Proceedings of the Korean Society of Computer Information Conference
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• 2017.07a
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• pp.89-92
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• 2017

This study critically analyzes the present situation of the domestic game industry that infringes game nature or diversity, which is the essence of game contents such as copycat, auto play, excessive billing inducement, indiscriminate advertisement developed by focusing on commercial aspect, It suggests the necessity of creative and various game development environment. It suggests development direction for the development of domestic game industry through game case analysis which shows the possibility of game media out of existing success formula and does not concentrate only on commerciality and makes effort to give new fun to users.