• Journal of the Korean Society of Food Culture
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• v.19 no.2
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• pp.150-157
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• 2004

As an attempt to develop new functional health beverage by using medicinal herb, green ginger(Zingiber officinale Roscoe), we investigated the effect of Zingiber officinale on blood pressure and regional cerebral blood flow (rCBF) of rats with Zingiber officinale extracts. Zingiber officinale extract increase rCBF significantly. The drink produced consisted of Zingiber officinale extract 1.825%, maltitol syrup 17.0%, citric aicd 0.06%, ascorbic acid 0.02%, stevioside 0.001%, ginger flavor 0.11% and water. Brix, pH and acidity of product were 13.7, 4.4 and 0.09, respectively. This drink had good score by the sensory evaluation. The above results showed that development of such functional beverage using Zingiber officinale can used as a functional material improving blood circulation in beverage industry.

• The Transactions of the Korea Information Processing Society
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• v.6 no.5
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• pp.1225-1240
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• 1999

This paper proposes PASC(PArtitioned SCHeduler) processor architecture that equips with a number of functional unit and an individual scheduler paris. Every scheduler of the PASC processor can determine whether a unit instruction can be issued to the associated functional unit or it is to be waited until next cycle caused by a resource collision or data dependencies. In the PASC processor, only the functional unit with a resource collision or data dependencies waits by executing a NOP(No OPeration) instruction and the other functional units execute their own instructions. Therefore we can expect the code compaction effect on the PASC processor. Thus, the last instruction of a loop at certain iteration and the very first instruction of the loop at the next iteration can be scheduled simultaneously if the two instructions do not incur any resource collision or data dependencies. Therefore, we can expect that such two instructions without any resource collision and data dependencies are packed into the same very long instruction word and thus, the two instructions are executed concurrently at run time. As a result, we can shorten execution cycles of a loop comparing to the execution of the loop on a traditional VLIW or SVLIW processor architecture. Simulation result also promises faster execution of loops on a PASC processor architecture than those on a VLIW and SVLIW processor architecture.

• Journal of the Korean Society of Clothing and Textiles
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• v.33 no.9
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• pp.1463-1471
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• 2009

Silver ions or silver nanoparticles have multi-functional properties. The cotton fabrics for providing multi-functional properties were treated with a nanosilver powder, UV-absorbers, and dimethyloldi-hydroxyethyleneurea (DMDHEU) alone and mixed solution. The physical properties, UV protection, antibacterial, and deodorizing properties of treated cotton fabrics were evaluated. The results were as a follows. The UV protection of cotton fabrics were increased by the application of a nanosilver and Uv-absorbers mixture. The UV protection of treated fabrics were improved by nanosilver/DMDHEU/UV-absorbers mixed solution. The wrinkle recovery properties of fabrics treated with DMDHEU and nanosilver improved. The stiffness of fabrics are decreased by a nanosilver/DMDHEU/UV-absorbers mixed solution. The antibacterial properties of the fabrics treated with nanosilver/DMDHEU/UV-absorbers mixed solution is 99.99%. The functional properties of cotton fabrics are shown to be better with aanosilver/DMDHEU/UV-absorbers mixed than treated with nanosilver alone.

• Proceedings of the Korean Institute of Surface Engineering Conference
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• 2015.05a
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• pp.43-44
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• 2015

Electrodeposited Ni and Ni-SiC composite coatings were prepared on Cu substrates by using the Ni-Sulfamate electrolytic bath. Thus prepared samples were subjected for the two different types of post surface modification techniques; i.e. Laser Surface Texturing (LST) and Ultrasonic Nano Surface Modification (UNSM), respectively in order to investigate their effects on surface and interface related properties of the coatings. Hemispherical dimples, with 80 to 200 um dimple spacing, were created and examined on the surfaces of the materials studied. The results revealed that micro-surface texturing with 150 um dimple spacing considerably improved the coefficient of friction. Dimple spacing accuracy and incorporated second phase ceramic particles both contributed significantly to reduction in coefficient of friction. On the other hand, application of UNSM considerably modified the surface topography, led to increase the Vickers microhardness, and reduced the wear and coefficient of friction as compared to non UNSM treated Ni and Ni-SiC samples.

• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.6
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• pp.1016-1024
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• 2018

Lifestyle of Health and Sustainability (LOHAS) influences the development of hygienic and health-oriented functional textile products; consequently, there has been an increase in the prospects for environmentally friendly natural dyeing products with functional and sensitive characteristics. Therefore, the present study expresses a functional manifestation on fabrics by treatment with chitosan and tannin using natural Coptidis Rhizoma. Cotton and wool fabrics dyed with Coptidis Rhizoma after treatment with chitosan and tannin. Consequently, the antibiosis of fabric dyed with Coptidis Rhizoma was excellent with 99.9% bacterial reduction for Staphylococcus aureus and Klebsiella pneumoniae in both fabrics. The deodorization rate was more than 90.0% in both fabrics after 120 minutes. The UV-A protection rate was 88.2% and the UV-B protection rate was 87.7% for cotton. The UV-A protection rate was 88.2% and the UV-B protection rate was 84.3% for wool fabric. Therefore, both of the dyed fabrics showed excellent UV protection by treatment with only chitosan and tannin, without mordants. Therefore, chitosan and tannin treatments were able to manifest functionalities in the fabrics dyed with Coptidis Rhizoma.

• The Journal of Internal Korean Medicine
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• v.42 no.4
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• pp.707-717
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• 2021

Objectives: The aim of this study was to introduce the normalization effects of stimulation of both ST36 and CV11, 12, 13 meridian points on the abnormal gastric myoelectrical activity in two cases of functional dyspeptic patients with gastric dysmotility. Methods: Gastric myoelectrical activity was recorded by electrogastrography every two weeks until their gastric myoelectrical activity finally reached the normality. Dominant frequency of gastric slow waves in the fasting and postprandial periods and a dominant power ratio were obtained on each occasion. Patients were treated three times each day: 9 am, 1 pm, and 7 pm. The first treatment consisted of manual and immersion stimulation on all used meridian points for 20 min. In the second and third treatments, electrical stimulation of both ST36 was added. It was conducted for 20 min at a strength intensity of 1.2 times the pain threshold at a frequency of 3 Hz. Results: Stimulation of the above meridian points normalized abnormal gastric myoelectrical activity. The time taken to return from abnormal gastric myoelectrical activity to normal was 16-19 weeks. Conclusion: Stimulation of both ST36 and CV11, 12, 13 meridian points normalized the abnormal gastric myoelectrical activity in the functional dyspepsia of gastric dysmotility.

• Food Science and Industry
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• v.51 no.1
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• pp.8-15
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• 2018

Functional food research has been struggling to demonstrate their beneficial effects in human, however, the physiological changes in humans who are in the target for functional food are very subtle and long term. In addition, it is difficult to obtain significant beneficial effect because of the necessity of using relatively healthy subjects. Relatively healthy subjects are homeostatic, and most of the biomarkers maintain a certain level under the "normal" or "resting" state. Moreover, due to wide inter-individual variation, it is difficult to detect significant changes. To address this problem, research has been actively conducted to identify the efficacy of natural products using 'omics' and 'bioinformatics' technology. In this review, we would like to introduce the human intervention studies applied homeostatic challenge model.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.27 no.3
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• pp.47-55
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• 2021

Background: Plantar fasciitis is one of the most common conditions of the lower limbs. The present study aimed to compare the effect of hip muscle strengthening exercise and stretching of lower extremity in plantar fasciitis, with regard to pain, navicular drop and foot and ankle functional ability. Methods: A total of 42 patients diagnosed with plantar fasciitis were randomly assigned to the experimental group (n=21) that applied the hip muscle strengthening exercise and the control group(n=21) that applied the general lower limb stretching. The intervention period was 6 weeks. Results: The results of the experiment showed that the exercises for strengthening the hip muscle had significant effects on pain, navicular drop and foot and ankle functional ability In addition, lower extremity stretching showed improvement effects in pain, navicular drop and foot and ankle functional ability, however, the difference between the groups except navicular drop did not reach statistical significance Conclusion: Both interventions tested in this study were confirmed to be effective treatment options for patients with plantar fasciitis.

• Journal of the Korean Wood Science and Technology
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• v.32 no.6
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• pp.67-73
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• 2004

The influence of liquefied wood (LW) on the mechanical and thermal properties of liquefied wood-polymer composites (LWPC) was investigated in this study. The thermal behaviors of LWPC were characterized by means of thermogravimetric (TGA) and differential scanning calorimetric (DSC) analyses. LW showed significant effects on the mechanical strength properties. The increase of flexural MOE and Young's modulus was related to the increase of stiffness of LWPC. The effect of LW was also significant on the flexural and tensile MOR. The impact strength decreased with the increase of LW application level. With the increased stress concentration by the poor bonding between LW and polymer, the impact strength of LWPC decreased, compared with that of high-density polyethylene (HDPE). The thermal stability of LWPC decreased with the increase of LW content up to 40%. The melting temperature of HDPE decreased with the increase of LW loading level. Enthalpy of HDPE also decreased with the addition of LW. This study proves the thermal stability necessary for the consolidation of composition materials.

• Korean Journal of Applied Biomechanics
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• v.32 no.4
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• pp.141-146
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• 2022

Objective: The purpose of this study was to investigate the effects of different frequency on muscle function of the thigh in patients with degenerative knee arthritis during the functional electrical stimulation (FES). Method: For this study, 16 male participants over 65 who patients with degenerative knee arthritis were recruited as research participants. In this research, isokinetic muscular function, EMG, and joint position sensation were performed after FES treatment was applied for three conditions (FES 20, FES 50, and Without FES). For each dependent variable, one-way ANOVA with repeated measures was to determine whether there were significant differences among three different conditions (p<.05). When a significant difference was found, post hoc analyses were performed by using the contrast procedure. Results: When compared to FES 50 and without FES, FES 20 causes significant increase in isometric knee extension strength. No significant differences were found in EMG values across different EMS conditions. Conclusion: The present study examined isokinetic muscular function, EMG, and joint position sensation in order to investigate the effects of different frequency muscle function of knee extensors during the functional electrical stimulation. The results of this study showed that FES with 20 Hz frequency had positive effect on knee extensor. Based on the findings of the present study, FES with lower frequency may help the performer to focus on developing strength in knee extensor muscles.