• Textile Coloration and Finishing
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• v.26 no.1
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• pp.39-44
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• 2014

To confirm the performance and benefit of the developed online E-commerce Real Industrial Color(RIC) device, cotton and polyester were dyed with selected 39 colors. The captured images of dyed cotton and polyester by using RIC device were compared with original samples and confirmed ${\Delta}E$ using a spectrophotometer and RIC device. Overall, visual comparison of the captured images was similar to the real dyed samples. In high concentration of dyeings, the color consistency between real samples and captured images was better than in lower color concentration of dyeings. Similarly, the result was almost the same when the developed RIC device was used since ${\Delta}E$ values of RIC device were smaller compared with spectrophotometer. In this regards, the RIC device developed up to date can be assumed that it is more influenced by the color rather than fabric materials.

• Textile Coloration and Finishing
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• v.25 no.1
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• pp.65-69
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• 2013

PET fabrics of various luster, fiber thickness(denier), and weaving structure were dyed at the same conditions and determined their grey scale by using naked eyes, computer color matching (CCM) system, and real industry color (RIC) device to evaluate the effectiveness of RIC device developed in this study. As for the luster of fabrics, bright PET showed more differences when compared with semi-dull and full-dull. PET in both naked eyes and RIC device since the RIC device provide the real image of fabrics to observers. As for the fiber thickness, the results of naked eyes and RIC device were very similar while the result of CCM showed lower color grade. Finally, as for the weaving structures of PET fabrics, all the test results by naked eyes, CCM, and RIC device showed almost same grey scales. In these regards, the RIC device developed in this study was comparable to naked eyes by providing the real image of fabrics, however it was difficult to compare the very bright colors such as yellow and fiber thickness(denier) and weaving structure of fabrics.

• Biomolecules & Therapeutics
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• v.3 no.3
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• pp.210-216
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• 1995

Partially purified water-soluble extract mixture from Ricini and Coptidis (named as RIC) showed to be a potent inhibitor of human immunodeficiency virus-1 (HIV-1) replication. RIC was evaluated for in vitro anti-HIV activity using SupTl and H9 cells infected by a recombinant virus (pSVCAT) containing chloramphenicol acetyltransferase (CAT) gene substituted for nef gene in the HIV-1 genome. RIC inhibited syncytiaformation of SupTl cells with a half maximal effective concentration, $IC_{50}$/, of 2.5 $\mu\textrm{g}$/mι and showed marked inhibition of CAT activity in the infected H9 cells and also suppressed reverse transcriptase (RT) activity in the supernatant of the infected H9 culture. However, RIC did not inhibit the activity of reverse transcriptase directly when it was mixed with the enzyme or with viral particles. Berberine, one of components of RIC, also showed similar anti-HIV activity as RIC did. The data suggest that there are active ingredients which mediate anti-HIV activity in RIC.

• 한국약용작물학회:학술대회논문집
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• 2008.11a
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• pp.441-442
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• 2008

• 한국약용작물학회:학술대회논문집
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• 2008.11a
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• pp.443-444
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• 2008

• BMB Reports
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• v.38 no.5
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• pp.595-601
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• 2005

In this study, we have isolated a rice (Oryza sativa L.) glutamate decarboxylase (RicGAD) clone from a root cDNA library, using a partial Arabidopsis thaliana GAD gene as a probe. The rice root cDNA library was constructed with mRNA, which had been derived from the roots of rice seedlings subjected to phosphorus deprivation. Nucleotide sequence analysis indicated that the RicGAD clone was 1,712 bp long, and harbors a complete open reading frame of 505 amino acids. The 505 amino acid sequence deduced from this RicGAD clone exhibited 67.7% and 61.9% identity with OsGAD1 (AB056060) and OsGAD2 (AB056061) in the database, respectively. The 505 amino acid sequence also exhibited 62.9, 64.1, and 64.2% identity to Arabidopsis GAD (U9937), Nicotiana tabacum GAD (AF020425), and Petunia hybrida GAD (L16797), respectively. The RicGAD was found to possess a highly conserved tryptophan residue, but lacks the lysine cluster at the C-proximal position, as well as other stretches of positively charged residues. The GAD sequence was expressed heterologously using the high copy number plasmid, pVUCH. Our activation analysis revealed that the maximal activation of the RicGAD occurred in the presence of both $Ca^{2+}$ and calmodulin. The GAD-encoded 56~58 kDa protein was identified via Western blot analysis, using an anti-GAD monoclonal antibody. The results of our RT-PCR analyses revealed that RicGAD is expressed predominantly in rice roots obtained from rice seedlings grown under phosphorus deprivation conditions, and in non-germinated brown rice, which is known to have a limited phosphorus bioavailability. These results indicate that RicGAD is a $Ca^{2+}$/calmodulin-dependent enzyme, and that RicGAD is expressed primarily under phosphate deprivation conditions.

• Journal of Institute of Control, Robotics and Systems
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• v.10 no.5
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• pp.385-394
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• 2004

This paper proposes the generalized structure of a model-based disturbance rejection controller called a Robust Internal-loop Compensator (RIC). The framework consists of the RIC in the internal-loop to eliminate disturbances and a feedback controller in the external-loop to achieve nominal control performance. As the main contribution of this paper, we redefine the design problem of the RIC as a regulation control problem, then show that this new definition with the RIC structure provides more design flexibility and less implementation constraints. This is verified through a comparative structural analysis with Disturbance Observer (DOB) and Adaptive Robust Control (ARC). Two design examples of the RIC are given, along with practical issues that should be considered in the design procedure. The proposed framework is demonstrated by simulations of a rotary-type motor and experiments with a linear-type motor system.

• Biomedical Science Letters
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• v.13 no.2
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• pp.127-133
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• 2007

Heterotrimeric GTP binding proteins (G proteins) mediate signal generated by neurotransmitter and hormones. Among all G proteins, Go is the most abundant in brain but its role in brain is not clearly understood. To determine the function of the alpha subunit of Go (Go$\alpha$), we search for the interacting partner of Go$\alpha$ in brain using yeast two-hybrid system. A resistant to inhibitor of cholinesterase (Ric-8B) was identified as a Go$\alpha$ interacting protein. We confirmed interaction between Go$\alpha$ and Ric-8b employing in vitro affinity binding assay and showed that the Ric-8b increased the function of Go$\alpha$. Our findings indicate that Ric-8b is possible guanine nucleotide exchange factor for Go$\alpha$.

• Journal of Institute of Control, Robotics and Systems
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• v.14 no.11
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• pp.1094-1102
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• 2008

Through the motion control experiment using Industrial Emulator(Model 220 by ECP), the performance comparison of three kinds of controllers such as PID, RIC and LQR was carried out. It was shown that RIC has the best performance in the presence of disturbances such as step one, sinusoidal one and Coulomb friction for the rigid body. LQR using feedback state variables has the best tracking performance far the flexible body. The performance of PID controller is low compared to other controllers, but the design process is simple. The most advanced controller is LQR. In order to attenuate disturbance, an additional state observer should be used to estimate it, making more complex control system. RIC lies between PID and LQR in view of complexity of design. Even though RIC is not complicated, it has good disturbance rejection ability and less tracking error. By considering these aspects, the RIC is suggested as high precision controller to be used in motion control system.

• Journal of the Korean Geotechnical Society
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• v.39 no.10
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• pp.5-18
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• 2023

The construction timeline for earthworks can be significantly reduced by substituting the conventional layer-by-layer compaction using a vibratory roller with single-layer compaction through the rapid impact compaction (RIC) method. Dynamic load compaction is well-suited for coarse-grained soils like sand. However, as the supply of sand, the primary reclamation material, becomes scarcer, the utilization of soil with fines is on the rise. To implement the dynamic load compaction, such as RIC, with reclaimed materials containing fines, it's imperative to determine the effective improvement depth. In this study, we assess the impact of the RIC method on the effective improvement depth for clean sand and public fill with fines, comparing field test results before and after RIC application. Our focus is on the cone resistance (q_c) as it pertains to compaction quality control criteria. In conclusion, it becomes evident that standardizing the cone resistance is vital for the quality control of various reclaimed soils with fines. We have evaluated the compaction quality control criteria corresponding to a relative density (Dr) of 70% for clean sand as Q_tn,cs = 110. As a result of this analysis, we propose new quality control criteria for q_c, taking into account the fines content of reclaimed soils, which can be applied to RIC quality control.