• Food Science and Biotechnology
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• v.15 no.5
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• pp.746-751
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• 2006

The effects of resistant starch (RS) and non-starch polysaccharide (NSP) addition on the properties of hard wheat flour were investigated. Total dietary fiber (TDF) levels of various NSP ranged from 78.3-100.0%, but TDF and RS levels of autoclaved RS3 and cross-linked RS4 were 16.1 and 35.0% and 13.2 and 90.9%, respectively. DF-supplemented flour increased swelling power, but RS4-supplemented flour exhibited the lowest it. Solubility increased with the addition of pectin and RS3, but decreased with the addition of cellulose and RS4. RS-supplemented flour had increased lightness (L), but decreased values of redness (a) and yellowness (b). RS3 and pectin increased the dough development time, but RS4, cellulose, and chitosan decreased it. The water absorptions of pectin- and RS4-supplemented flours increased, however the dough stability decreased. The initial pasting temperatures of RS- and NSP-supplemented flours increased regardless of amount added, but the maximum peak viscosity decreased for all except the pectin-supplemented flour.

• Journal of the Korean Society for Precision Engineering
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• v.14 no.11
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• pp.102-109
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• 1997

A two-degree-of freedom (TDF) $H_{\infty}$controller for a seeker scan loop is presented for the purpose of improving scanning performances. The perturbed plant model is characterized via the normalized coprime factorization. The TDF $H_{\infty}$controller is designed based on the loop shaping design procedure and model matching approach, and its performances are evaluated and compared with those of a previous work. It is demonstrated that the proposed TDF $H_{\infty}$controller is more effective to the control of the seeker scan loop than the previous controller.oller.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.28 no.7
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• pp.48-54
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• 2014

This paper discusses study of torque ripple minimization employing an improved TDF(torque distribution function)-based instantaneous torque control to reduce acoustic noise and vibration problem of the SRM. As the flux linkage of the SRM is a nonlinear function of phase current and rotor position, design of optimal controller for the SRM is quite complicated. Hence, an accurate mathematical model considering the nonlinearity of the SRM is required. An improved TDF based torque control has been proposed in order to reduce the toque ripple at high speed operation. Dynamic simulation using Matlab/Simulink as well as Finite Element Analysis is presented. A prototype SRM for electric vehicle traction has been manufactured to validate the experimental results comparing the dynamic simulation results.

• The Korean Journal of Food And Nutrition
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• v.30 no.3
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• pp.405-412
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• 2017

To aid in the development of a food nutrient database that provides the dietary fiber composition of eat-out Korean foods, we determined the total dietary fiber (TDF) content in the eat-out Korean foods Muchim, Bokkeum, and Guk (Tang) using a dietary fiber autoanalysis instrument. A total of 59 samples were collected from Gangwon-do, Gyeonggi-do, Gyeongsangdo, Seoul, Jeonla-do, and Chungcheong-do. First, among 14 samples of Muchim, the TDF content of Kkaennip namul, Goguma-julgi-namul, and Dallae-namul (4.33~6.24, 3.16~5.07 and 3.70~4.99 g/100 g, respectively) was higher than the other types of Muchim. There was no significant difference in TDF content of Muchim (p>0.05) among locations. Among 13 samples of Bokkeum, the TDF content of Pyogo-beoseot-bokkeum (4.77~6.66 g/100 g) and Miyeok-julgi-bokkeum (4.16~7.47 g/100 g) was higher than the other types of Bokkeum. The TDF content of Pyogo-beoseot-bokkeum in Gyeongsang-do was the lowest and the TDF content of Miyeok-julgi-bokkeum in Gangwon-do was the highest (p<0.05). The TDF content of spinach soybean paste soup (1.34~2.21 g/100 g), Dakgogi-yukgaejang (1.61~2.45 g/100 g), duck stew (1.25~2.80 g/100 g) and spicy yellow croacker stew (1.70~2.27 g/100 g) were higher than the other types of Guk (Tang). There was no significant difference in TDF content of Guk (Tang) among locations (p>0.05).

• Korean Journal of Food Science and Technology
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• v.21 no.2
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• pp.269-275
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• 1989

The study was conducted to compare the components such as proximate composition, total dietary fiber(TDF) content, acid detergent fiber(ADF) content, lignin, water binding capacity(WBC), amino acid composition and lipid components from brown Job's tears, dehulled Job's tears, brown Yeomjoo and bran of Job's tears. The results from this study are summerized as follows: Total dietary fiber(TDF) content of Job's tears, brown Job's tears, brown Yeomjoo and bran of Job's tears were 2.70%, 3.86%, 4.33% and 13.3% each. Water-binding capacity(WBC) of TDF and ADF were $2.63{\pm}0.02g\;H_2O/g$ TDF and $5.89{\pm}0.15g\;H_2O/g$ ADF each. In amono acids composition of samples, glutamic acid content was the highest and the next was leucine. Chemical score of leucine in dehulled Job's tears was very high(189), in contrast lysine was very low$(22{\sim}23)$ So lysine was a first limitting amino acid in Job's tears and Yeomjoo. Neutral lipid contents were 90.89%-96.55%, glycolipid contents were 2.35%-7.48% and phospholipid contents were very low. The major fatty acids of lipid fractions were palmitic acid. oleic acid and linoleic acid.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.151.2-151
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• 2001

In this paper, the design of a two-degree-of-freedom(TDF) controller is proposed to track the reference model, as well as to reject an influence of measurable disturbance for descrpitor system. The TDF controllers based on the Youla parametrization reveals that the design of the feedforward controller and the regulator can be done independently. First, to solve this problem, we will change descriptor system into regular state space system using a state feedback. And then, the feedforward controller is determined by solving a full information approach for augmented system with a nominal control constraint, and the regulator is designed by means of the loop-Shaping method.

• Korean Journal of Food Science and Technology
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• v.28 no.2
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• pp.378-383
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• 1996

Dietary fibers (DF) have been used as functional food components due to the various health promoting activities. Dietary fibers have been separated from the peels of Korean tangerine by employing ultrafiltration (UF) membranes. Optimum conditions in a batch type ultrafiltration unit using YM100 (molecular weight cut-off, MWCO=100,000), YM 10 (MWCO=10,000) and YM1 (MWCO=1,000) membranes were : transmembrane pressure 7.5 psi, temperature of the peel extracts $35^{\circ}C$, and pH of the peel extract 3.0, respectively. The flux in YM 10 membrane unit was higher than that in YM 10 or YM 1 membrane unit. However, YM 100 membrane was superior to YM 10 or YM 1 membrane with respect to the recovery of the retentate and the contents of DF The contents of DF in the tangerine peel extract, in the 170 mesh retentate, and in the YM 100 retentate were shown to be 33.4%, 18.5% and 8.4% based on dry matter, respectively. Most dietary fibers were recovered at the separation stages of 170 mesh and YM 100.

• Fire Science and Engineering
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• v.33 no.2
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• pp.47-55
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• 2019

The prediction performance of design fire curves was evaluated using a Fire dynamics simulator (FDS) for a solid fuel fire in a building space by comparing the results with experimental data. EDC 2-step mixing controlled combustion model was used in the FDS simulations and the previously suggested 2-stage design fire (TDF), Quadratic and Exponential design fire curves were used as the FDS inputs. The simulation results showed that smoke propagation in the building space was significantly affected by the design fire curves. The predictions of simulations using design fire curves for the experimental temperatures in the building space were reasonable, but the TDF was found to be the most acceptable for predicting temperature. The predictions with each design fire curve of species concentrations showed insufficient agreement with the experiments. This suggests that the combustion model used in this study was not optimized for the simulation of a solid fuel fire, and additional studies will be needed to examine the combustion model on the FDS prediction of solid fires.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.11 no.3
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• pp.97-105
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• 1997

The aim of this paper is to introduce a design technique of the Two-Degree-of-Freedom(TDF) satellite-tracking control system which has not only the robust stability for a unstructured uncertainty but also the robust performance for a structured uncertainty. This TDF system which can design the feedforward controller KI and the feedback one K independently is designed by , $\mu$-synthesis. The effectiveness of this TDF system is verified and compared with the One-Degree-of -Freedom(ODF) satellitetracking control system by computer simulation.

• Journal of Nutrition and Health
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• v.30 no.2
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• pp.210-219
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• 1997

Retarding effects of the dietary fibers from tangerine peels on glucose, bile acid and cadmium transport were evaluated by dialysis method, and were compared with those of commercial dietary fibers(citrus pection, CM-cellulose, guar gum, $\alpha$-cellulose). Yields of total (TDF), insoluble(IDF) and soluble dietary fibers(SDF) from tangerine peels on the fresh matter basis were 2.84%, 1.95% and 0.39% respectively. The amount of insoluble fibers was 5.2 times higher than that of soluble fibers. Soluble fibers(guar gum, CM-cellulose, SDF, pectin) had the retarding effect on glucose transport, while IDF, TDF and $\alpha$-cellulose did not have. Guar gum showed the greatest effect, followed by CM-cellulose, SDF and pectin. Among the extracted fibers, only SDF had the effect on glucose transport retardation. Regarding bile acid dialysis, guar gum had the greatest retarding effect, and all dietary fibers from tangerine peels, especially SDF, showed the effect of bile acid retardation. On cadmium transport retardation, CM-cellulose had the greatest effect, followed by SDF, TDF, IDF, guar gum and pectin. Among the extracted fibers, SDF had the greatest effect on Cd trasport transport retardation. The extracted dietary fibers showed higher retarding effect on Cd transport than glucose and bile acid transport, and the effect of SDF was higher than IDF.