• Journal of Information Technology Services
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• v.13 no.4
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• pp.205-230
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• 2014

In recent years, the social network service (SNS) and the location-based social network service (LBSNS) industry is expanding and the competition within the field is increasing much more. Since 2010, the full-scaled studies of SNS and LBSNS have begun. With the growth of SNS and LBSNS markets, SoLoMo (Social-Local-Mobile) is also becoming the trend for applications in different fields. However, despite the importance of SoLoMo, there have been little studies on the characteristics of SoLoMo applications. The purpose of this research is to investigate the effect of characteristics and perceived privacy risk of mobile location-based SNS on intention to use SoLoMo applications. For the purpose, we proposed a SoLoMo service acceptance model with TAM (Technology Acceptance Model) and the characteristics of SoLoMo applications. The characteristics consist of three factors, i.e. SNS, location, and mobile-related factors. This study also considered a gamification and a perceived privacy risk factor influencing on SoLoMo service usage in our proposed research model. The results of our empirical analysis using partial least squares (PLS) method show that the characteristics of SoLoMo applications including SNS, location, and mobile-related features, gamification, and perceived privacy risk have partially an effect on intention to use SoLoMo applications. Based on these results, SoLoMo-related companies will be able to increase the usage of SoLoMo services by differentiating their own strategies with these factors influencing on SoLoMo services.

• Korean Chemical Engineering Research
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• v.47 no.4
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• pp.512-517
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• 2009

$SO_2$ concentrations in oxy-fuel combustion flue gases increases about three times as high as that of conventional air combustion system owing to the flue gas recirculation for the control of combustion temperature. So the desulfurization reaction is different from that of the conventional air combustion system due to exceptionally high $CO_2$ and $SO_2$ concentration. In this study, drop tube furnace(DTF) system was used to investigate the desulfurization characteristics of limestone in oxy-fuel combustion furnace. The experiments were performed under $O_2/CO_2$ atmosphere to examine the effect of operating variables such as reaction temperatures, Ca/S ratios and inlet $SO_2$ concentrations on the $SO_2$ removal efficiencies. $SO_2$ removal efficiency increased with reaction temperature, Ca/S ratio and inlet $SO_2$ concentration. And the addition of water vapor resulted in about 4~6% of increase in $SO_2$ removal efficiency.

• Journal of Physiology & Pathology in Korean Medicine
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• v.24 no.5
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• pp.790-795
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• 2010

Sasang Constitution Medicine(SCM)'s researches have been developed in many ways, especially Herbal medicine prescriptions and diagnosis. But there are no acceptable acupuncture theory for the Sasang Constitution. So We have tried to find the way for identifying each Sasang Constitution's acupuncture point on more reasonable methods. We studied that SCM acupuncture based on collecting Books of "Shanghanlun(傷寒論)", or Six-meridian pattern identification's acupuncture prescription. Selected books are "The Acupuncture and Moxibustion(침구학)", "Zhonghua Zhenjiuxue(中華鍼灸學)", "Zhenjiuxinchuan(鍼灸心傳)", "Shanghanlun Zhenjiupeixuexuanzhu(傷寒論鍼灸配穴選注)". So-eumin uses Conception Vessel's acupuncture points most frequently. And So-yangin and Tae-eumin use Bladder meridian and Stomach meridian's acupuncture points most. Moxibustion is used many times for So-eumin, especially at three Yin-Symptoms(三陰病). Orders for using frequencies of three Sasang constitutions' acupuncture points are: So-eumin uses ST36 CV12 CV4 most, So-yangin uses PC6 ST36 LI4 most, Tae-eumin uses ST36 LU7 CV12 most. Acupuncture for Sasang constitutions has been developed for many ways, but there are no generally acceptable theory. So we need to hold a committee for SCM and acupuncture specialist to establish acceptable and reasonable SCM acupuncture theory.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.30 no.3A
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• pp.226-232
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• 2005

An on-chip debugging unit is proposed aiming performance enhancement of JTAG-based SoC systems. The proposed unit comprises a JTAG module and a core breaker. The IEEE 1149.1 standard has been modified and applied to the new JTAG module. The proposed unit eliminates redundant clock cycles included in the TAP command execution stage. TAP execution commands are repeatedly issued to perform debugging of complicated SoC systems. Simulation on the proposed unit shows some 14% performance enhancement and 50% gate count reduction compared to the conventional ones.

• Bulletin of the Korean Chemical Society
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• v.35 no.7
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• pp.2109-2113
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• 2014

Solvent extraction of Fe(III) from chloride solution by using a mixture of D2EHPA (Di-(2-ethylhexyl)-phosphoric acid) and TBP (Tri-butyl phosphate) and the reductive stripping of Fe(III) from the loaded organic were investigated. Quantitative extraction of Fe(III) from the solution (Fe concentration = 90 g/L) was accomplished in two cross-current extraction stages by using the mixture of D2EHPA and TBP. In order to facilitate the stripping efficiency, a reductive stripping method was employed by using $H_2SO_3$ or $Na_2SO_3$ as a reducing agent. The addition of $H_2SO_4$ into reducing agents led to improvement in the stripping efficiency while high concentration acid would suppress it. Both of the mixtures of $H_2SO_4+H_2SO_3$ and $H_2SO_4+Na_2SO_3$ showed good efficiency for the stripping of Fe(III), while the latter was recommended as the stripping solution based on the economics and experimental condition.

• Membrane Journal
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• v.31 no.1
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• pp.61-66
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• 2021

This study was a study on an facilitated transport membrane to replace the cryogenic separation method currently used in olefin/paraffin separation. Cost reduction is also a very important factor to commercialize facilitated transport membranes. However, AgBF4, which has been studied a lot, is a relatively expensive silver salt. To replace this, a PEBAX-2533/ AgCF3SO3/Al(NO3)3 composite film was prepared using relatively inexpensive AgCF3SO3. It was analyzed through SEM, FT-IR, and RAMAN. Through this study, it was confirmed that the polymer matrix affects the long-term stability.

• Journal of Physiology & Pathology in Korean Medicine
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• v.23 no.2
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• pp.278-287
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• 2009

Ji-San, the founder of HyungSang medicine, emphasized food intake and detoxification by stating, "Korean medicine begins with detoxification." Toxin accumulates in one's body unless the internal and external conditions stay in their harmony. The accumulation of toxin is also caused by western medication or one-sided diet, and detoxification should be considered in those cases. HwangRyunHaeDok-Tang reduces fire and heat, and the lesion is likely to locate in the upper body. BangPoongTongSung-San can be used for systemic disease. IkWoon-San also reduces fire and heat but mainly focuses on promoting urination. InSamPaeDok-San has an effect of curing the external symptoms of SangHan(傷寒), in addition to detoxification. SeoGakJiHwang-Tang, SoDok-Eum, and SeoGakSoDok-Eum can resolve the heat-toxin when it is located on the surface. SibJeonDaeBo-Tang enhances the detoxifying function of human body. GhamDu-Tang and JaGeum-Jung have a general effect on detoxification.

• 한국연소학회:학술대회논문집
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• 2012.11a
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• pp.43-45
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• 2012

The effect of limestone characteristics on in-furnace desulfurization was experimentally investigated at hot gas combustion condition in a drop tube furnace (DTF). Flue gas was measured by Gas analyzer in order to figure out $SO_2$ content. The experiments were performed under excess sulfur 3000ppm condition to examine the effect of operating variables such as reaction temperatures, Ca/S ratios on the $SO_2$ removal efficiencies. The results show that the $SO_2$ removal efficiency increased with reaction temperature and Ca/S ratio increase. When considering the economics, $1200^{\circ}C$ and Ca/S ratio 2 condition is optimized to reduce $SO_2$ emission.

• Proceedings of the KIEE Conference
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• 2002.07a
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• pp.259-261
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• 2002

Recently, according to the spread of semiconductor applied technology like motor speed control contrivance, power conversion installation and so on, harmonic ingredients occurred in switching operation flow into a distribution system and increase voltage distortion of distribution system and bring on obstacles like damage, lowering of capability, false operation and so on of various electrical installation. So, in order to consider a countermeasure to limit occurrence quantity of harmonic source, harmonic interception and others, precision measurement and analysis on voltage, current, power, power factor, the each ingredient of harmonic order, the percentage of total harmonic distortion and so forth are needed. In this paper monitoring system to measure and analyze power quality connected with power harmonics was developed and it's performance is verified by measuring and analyzing three-phase voltage and current of R, S, T in the three-phase and four-wire system using the developed measurement system.

• Journal of Sasang Constitutional Medicine
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• v.21 no.2
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• pp.115-122
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• 2009

1. Purpose : Sasang constitutional herb medicine is known as specific to his own's constitution. So Other constitutional herb medicine can induce side effects. This study investigates the cause and side effects of other constitutional herb medicine. 2. Methods : Literature study was carried out with the chapters including harm to Other constitutions in the books "Dongyisasangjinryoeuijeon(東醫四象診療醫典)" and "Joeuihak(朝醫學)". And the causes of side effects were studied in terms of herbology and movements of Qi in Sasang constitutional medicine. 3. Results : Herb medicines of Taeeumin's have the dispersing Qi energy, so Soeumin could have side effects mostly and some of Soyangin could do. Herb medicines of Soeumin's have the warming Qi energy, so Soyangin could have side effects like dermatitis or fever. Herb medicine of Soyangin's have cooling Qi energy, so Soeumin could have side effects of digestive system like diarrhea and some of Taeeumin could do. 4. Conclusion : It is thought that herb medicine is safe and less harmful when herb medicine is prescribed and taken according to his own constitution.