• Kyungpook Mathematical Journal
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• v.58 no.1
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• pp.149-165
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• 2018

A. Bejancu [2] was the first who instigated the new concept in differential geometry, i.e., CR-submanifolds. On the other hand, CR-submanifolds were generalized by B. Y. Chen [7] as slant submanifolds. Further, he gave the notion of a Kaehlerian slant submanifold as a proper slant submanifold. This article has two objectives. For the first objective, we derive Simons' type formula for a minimal Kaehlerian slant submanifold in a complex space form. Then, by applying this formula, we give a complete classification of a minimal Kaehlerian slant submanifold in a complex space form and also obtain its some immediate consequences. The second objective is to prove some results about semi-parallel submanifolds.

• Journal of Wetlands Research
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• v.2 no.1
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• pp.49-58
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• 2000

The frequency analysis of annual maximum rainfall data and the derivation of probable rainfall intensity formula at Masan station are performed in this study. Based on the eight different rainfall duration data from 10 minutes to 24 hours, eight types of probability distribution (Gamma, Lognormal, Log-Pearson type III, GEV, Gumbel, Log-Gumbel, Weibull, and Wakeby distributions), three types of parameter estimation scheme (moment, maximum likelihood and probability weighted methods) and three types of goodness-of-fit test (${\chi}^2$, Kolmogorov-Smirnov and Cramer von Mises tests) were considered to find an appropriate probability distribution at Masan station. The Lognormal-2 distribution was selected and the probable rainfall intensity formula was derived by regression analysis. The derived formula can be used for estimating rainfall quantiles of the Masan vicinity areas with convenience and reliability in practice.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05a
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• pp.526-529
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• 2006

In this paper, flexure behavior of steel fiber reinforcement ultra high performance cementations composites (SFR-UHPCC) has been analyzed by equivalent stress block. Pulling-out tensile force of steel fiber with concrete matrix was induced. An appropriate flexure evaluation formula, i.e. semi-analytical formula, was established based on rectangular cross section beam for comparing with shear capacity and ultimate load of SFR-UHPCC beam. Finally, the semi-analytical formula has been simplified for the convenience of design work. Experimental results and theoretical shear strength are shown to compare with the formula proposed by this paper. The theory formula has a good prediction of failure type of SFR-UHPCC.

• Journal of Animal Science and Technology
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• v.55 no.5
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• pp.443-449
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• 2013

To develop a diet for Hanwoo steers during the late fattening phase, three different feeding treatments were investigated: a group fed concentrate and rice straw separately (Formula feed), a group fed TMR during the whole late fattening period (TMR), and a group fed TMR plus concentrate (Formula-TMR). Thirty Hanwoo steers 20 months of age (average body weight = 445 kg) were allotted by a completely randomized design into three treatment groups (ten steers in each group). The impact of these treatments on the performance, carcass traits, and blood composition related to body fat synthesis was assessed. The average dry matter and TDN intake were greater in Formula-TMR compared to other treatments (p<0.05); however, body gain, carcass weight, meat production index, and fat color were not affected by dietary type. Blood characteristics, such as concentrations of retinol, insulin, and leptin were not affected by any of the treatments; however the marbling score of the longisimus muscle was significantly higher in Formula-TMR (p<0.05), which was relatively high in blood leptin concentration. The muscle texture, meat quantity index, and meat quality index were highest in the Formula feed, TMR, and Formula-TMR, respectively (p<0.05).

• Journal of Navigation and Port Research
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• v.45 no.3
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• pp.165-172
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• 2021

Breaking wave is one of the important design factors in the design of coastal and port structures as they are directly related to various physical phenomena occurring on the coast, such as onshore currents, sediment transport, shock wave pressure, and energy dissipation. Due to the inherent complexity of the breaking wave, many empirical formulas have been proposed to predict breaker indices such as wave breaking height and breaking depth using hydraulic models. However, the existing empirical equations for breaker indices mainly were proposed via statistical analysis of experimental data under the assumption of a specific equation. In this study, a new Munk-type empirical equation was proposed to predict the height of breaking waves based on a representative linear supervised machine learning technique with high predictive performance in various research fields related to regression or classification challenges. Although the newly proposed breaker height formula was a simple polynomial equation, its predictive performance was comparable to that of the currently available empirical formula.

• Journal of Mechanical Science and Technology
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• v.18 no.10
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• pp.1700-1711
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• 2004

Piston friction is one of the important but complicated sources of energy loss of a hydraulic axial piston machine. In this paper, two formulas are derived for estimating instantaneous piston friction force and average piston friction moment loss. The derived formula can be applicable for piston guides with or without bushing as well as for axial piston machines of motoring and pumping operations. Through the formula derivation, a typical curve shape of friction force found from several experimental measurements during one revolution of a machine is clearly explained in this paper that it is mainly due to the equivalent friction coefficient dependent on its angular position. Stribeck curve effect can easily be incorporated into the formula by replacing outer and inner friction coefficients at both edges of a piston with the coefficient given by Manring (1999) considering mixed/boundary lubrication effects. Novel feature of the derived formula is that it is represented only by physical dimensions of a machine, hence it allows to estimate the piston friction force and loss moment of a machine without hardworking experimental test.

• Biomolecules & Therapeutics
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• v.18 no.3
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• pp.336-342
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• 2010

Obesity-induced disorders contribute to the development of metabolic diseases such as insulin resistance, fatty liver diseases, and type 2 diabetes (T2D). In this study, we evaluated the hypoglycemic and hypolipidemic effects of aloe formula in high fat diet (HFD)-fed C57BL/6N mice. Male mice fed HFD for 28 weeks received a supplement of aloe formula, PAG, ALS, Aloe QDM, and an Aloe QDM complex for a further 8 weeks and were then compared with regular diet fed mice. After the experimental period, the blood glucose levels of the Aloe QDM complex-and PGZ-supplemented mice were significantly lower than those of the HFD-fed mice. Aloe formula, especially the Aloe QDM complex, and the PGZ treatment group profoundly affected the IPGTT and HOMA-IR. Immunochemistry was done for the morphological observation and the resulting sizes of adipocytes around the epididymis were significantly decreased when comparing the aloe formula-treated and HFD-fed groups. Further, aloe formula decreased mRNA expression of fatty acid synthesis enzymes and led to reduced hepatic steatosis in both liver and WAT. These results suggest that supplementation of Aloe QDM complex in the HFD-fed mice improved insulin resistance by lowering blood glucose levels and reducing adipocytes. Our data suggest that dietary aloe formula reduces obesity-induced glucose tolerance by suppressing fatty acid synthesis in the WAT and liver, both of which are important peripheral tissues affecting insulin resistance. The Aloe QDM complex could be used as a nutritional intervention against T2D.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.12 no.4
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• pp.135-143
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• 1992

The probable rainfall depth is an important hydrologic design data in establishing the hydraulic engineering project at urban watershed. This study is to unificate the probable rainfall intensity formula at Seoul. The probable rainfall intensity formula at Seoul is basically formed by the types of Talbot, Sherman and Japanese. But these formulae may be unified to uniform type. The unified probable rainfall intensity formula is more applicable than that of the existing types at Seoul. Especially on the probable rainfall depth of total duration the application of unified formula general type is better than existing types. In this formula, values of n are decreasing with return period and increasing with rainfall duration, and values of coefficient, b, are decreasing with the increase of return period. The range of n varies from 0.55 to 0.60 for short duration, from 0.60 to 0.82 for long duration, and from 0.60 to 0.66 for total duration of probable rainfall depth.

• Journal of Industrial Technology
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• v.26 no.B
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• pp.43-51
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• 2006

Through the result of calculating the deviation between the value calculated from two-dimensional number formula, one-dimensional number interpretation, and curving part water surface type calculation method, we could confirmed that the deviation is reduced more than 50% when we use curving part water surface type calculation method. Also it was confirmed that there occurs the reduction rate of maximum 59% as the result of comparing with one-dimensional number interpretation since the reduction rate of safe room height was 20%, in 500 CMS of flood water quantity when we planted the construction of levee by curving part water surface type calculation method. And therefore, we have confirmed that the curving water surface type calculation method can be used as a simple formula in rivers with water quantity less than 500 CMS that flows in and out in Jess than 90 degree angle.

• Herbal Formula Science
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• v.11 no.1
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• pp.205-216
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• 2003

A general review is made on Insamyangwitang(人蔘養胃湯). Following conclusions are drawn from the clinical cases of Insamyangwitang in Hyungsang medicine. 1. Insamyangwitang is composed of four different prescriptions of Huisaentang, Sakoonjatang, Eajintang and Pyungwisan. Huisaentang is usually prescribed for the intestinal convulsion. Sakoonjatang for the deficiency of Ki. Eajintang for retention of phlegm. 2. Insamyangwitang is effective in strengthening the spleen, drying the dampness, warning the middle-warmer to stop vomiting, regulating the flow of Ki, and eliminating phlegm. 3. Insamyangwitang is applicable to malaria caused by cold, intestinal convulsion, abdominal mass, edema, tympanites, Yin syndrome of exogenous febrile disease, distension, lack of appetite, stomachache, and diarrhea. 4. Persons with the following characteristic in Hyungsang are more susceptible to Insamyangwitang : Jung type, Hyul type, fish type, Taium meridian type, white fat damp constitution, person with big mouth, and woman rather than man.