• Journal of Intelligence and Information Systems
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• v.11 no.3
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• pp.25-43
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• 2005

In modern automated container terminals, automated guided vehicle (AGV) systems are considered a viable option for the horizontal tansportation of containers between the stacking yard and the quayside cranes. AGVs in a container terminal move rather freely and do not follow fixed guide paths. For an efficient operation of such AGVs, however, a sophisticated traffic management system is required. Although the flexible routing scheme allows us to find the shortest possible routes for each of the AGVs, it may incur many coincidental encounters and path intersections of the AGVs, leading to collisions or deadlocks. However, the computational cost of perfect prediction and avoidance of deadlocks is prohibitively expensive for a real time application. In this paper, we propose a traffic control method that predicts and avoids some simple, but at the same time the most frequently occurring, cases of deadlocks between two AGVs. More complicated deadlock situations are not predicted ahead of time but detected and resolved after they occur. Our method is computationally cheap and readily applicable to real time applications. The efficiency and effectiveness of our proposed methods have been validated by simulation.

• Applied Biological Chemistry
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• v.31 no.1
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• pp.1-6
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• 1988

The degermed Japonica and J/Indica brown rites were abrasively milled to give an average yield for each milling of about 5% flour, with 85% of the rice left as residual kernel. The contents of protein, fat and ash were in the highest in fraction I and decreased with each successive milling. The fraction I contained twice as much protein as did the original kernel, 5.7 times as much ash and 11.4 times as much fat. However, no significant differences in the distribution among varieties were noticed. Residual kernels contained 68.7% of protein, 5.1% of fat and 41.8% of ash in the original kernel.

• Journal of Korean Neurosurgical Society
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• v.30 no.3
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• pp.395-399
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• 2001

Primary spinal epidural lymphoma(SEL), i.e. occurring in the absence of any detectable extraspinal lymphoproliferative disorder, is an unusual cause of spinal cord compression. The authors report a 48-year-old, diabetic woman presented with back pain followed by acute paraparesis and voiding difficulty. She had been treated with acupunctures on her back before admission, and complete blood count showed leukocytosis with neutrophilia and increased erythrocyte sedimentation rate(ESR). Thoracic spine magnetic resonance imaging(MRI) revealed an epidural mass extending from T5 to T8 with compression of the spinal cord. Emergency decompressive laminectomy was performed with a tentative diagnosis of spinal epidural abscess, but a B-cell lymphoma was final pathologic diagnosis. Further staging showed no other sites of lymphoma, and the spinal lesion was treated by chemotherapy and radiotherapy. The authors stress that primary SEL can mimic spinal epidural abscess(SEA) in the diabetic patient and should be a diagnostic consideration in patients with a syndrome of acute spinal cord compression manifested by a prodrome of back pain and neuroimaging consistent with an epidural compressive lesion, especially in a diabetic.

• Journal of Korean Neurosurgical Society
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• v.29 no.9
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• pp.1161-1170
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• 2000

Objective : The transverse hippocampal slice is one of the most commonly studied in vitro models of mammalian brain physiology. However, despite its broad usage, there has been no standardization of slice preparation techniques or recording condition. It is well known that variations in recording conditions can result in profound different effects to neuronal responses. Evoked field potentials, recorded extracellularly, were used to investigate the effects of variations in hippocampal slice preparation protocol on hypoxia responses of CA1 neurones. Material & Methods : Before hypoxic injury, hippocampal slices were incubated for 4 hours. During incubation period, the slices were placed in a incubation chamber($21^{\circ}C$) for recovery from preparation injury and then transferred to recording chamber($34^{\circ}C$) for more recovery and baseline electric recording with current stimulation(0.1Hz). Various time periods in incubation chamber and recording chamber were applied to each experimental group(group 1=60min : 180min, group 2=90min : 150min, group 3=180min : 60min, time in incubation chamber : time in recording chamber) before 10 min hypoxia produced by replacing 95% $O_2$+5% $CO_2$ mixed gas to 95% $N_2$+5% $CO_2$ gas. Calcium, Magnesium ions and several drugs effecting on glutamate receptor also were studied. Recoveries from hypoxic injury of hippocampal slices were estimated by percent recovery of population spike(PS). Statistic analysis of study were performed using paired t-test. Results : The percent recovery of PS after 10min hypoxia was considerably enhanced by increasing the period of current stimulation during incubation period before hypoxic injury. Temperature effect on the result of this experiment was also studied(group 4) but the result from this showed no statistic significance. Low magnesium ion concentration of artificial CSF(Mg-free aCSF) during incubation period enhanced the recovery of PS but low calcium (calcium-free) and high magnesium ion concentration(2mM) reduced it after hypoxic injury. L-glutamate($100{\mu}M$) and AP-5($50{\mu}M$) had no effect on the recovery of PS but CNQX($10{\mu}M$) in artificial CSF during incubation period markedly enhanced the recovery of PS. Co-treatment of AP-5($50{\mu}M$), CNQX($10{\mu}M$) and high magnesium concentration(2mM) enhanced recovery of PS in immediate following period of hypoxic injury but the effect of cotreatment after then decayed rapidly and lost statistic significance. Conclusions : Judging from above results, the condition of baseline recording is important in observing the recovery of population spike after hypoxia, and the time and the condition should be controled more strictly to obtain reliable results.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.5
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• pp.445-455
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• 2017

This study was conducted to identify the relevance between postpartum women'sfatigue and breast-feeding rate in accordance with the types of rooming-in care at one hospital in Seoul. The data were collected by using a self-report questionnaire between June and July of 2014. All subjects were full-time rooming-in group, with 64 mothers and part time rooming-in group, 43 mothers. The collected data were analyzed using SPSS 22.0 windows program. The result supported Hypothesis 1, in which the number of full-time rooming-in group's daily breast-feeding would out number that of part time rooming-in group. Hypothesis 2, on the other hand, which was that the breast-feeding rate would differ between the full-time rooming-in and the part-time rooming-in groups was overruled. Hypothesis 3, in which the fatigue of the full-time rooming-in group would be higher than the part-time rooming-in group was supported. Hypothesis 4, in which postpartum women'sfatigue would relate to breast-feeding rate during hospitalization period was overruled. Thus, based on this research, it is suggested that rather than collectively running the full-time rooming-in care, part-time rooming-in care that is individualized with considerations to the conditions of the mothers and new-born should be considered.

• Radiation Oncology Journal
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• v.18 no.3
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• pp.187-193
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• 2000

Purpose : DNA ploidy pattern was shown to correlate with several clinicohistologic findings in several tumors. Aim of this study was to evaluate the correlation of the clinicohistologic findings in colorectal cancer and the failure pattern in rectosigmoid cancer with DNA ploidy. Materials and Methods DNA flow cytometry using the Hedley methods on paraffin embedded specimen from 117 patients with colorectal cancers after curative resection was peformed. We tried to find the correlation between DNA ploidy and various clinicohistologic findings. And then the correlation DNA ploidy and the failure pattern in 75 patients of rectosigmoid cancer was analized. Results : Forty samples (34.2%) from tumors gave aneuploidy histogram. There was no significant difference in the frequency of DNA aneuploidy in terms of age, sex, depth of invasion, location and Dukes stage. But there was a significant correlation between DNA ploidy and the failure rates in Dukes stage B rectosigmoid cancer (P=0.048). Conclusions : These findings suggest that DNA ploidy pattern shows the correlation with the treatment failure rates in Dukes stage B rectosigmoid, but not with many other clinicohistologic findings. However,more patients will be needed to disclose these findings.

• Applied Biological Chemistry
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• v.19 no.1
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• pp.57-61
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• 1976

The effect of administration of red pepper Capsicum annuuml on the growth rate and resting metabolic rate in male chickens was investigated while varying the dose of red pepper. Growth of the chickens fed the rations containing small amount of red pepper(0.1% or 0.5%) was significantly enhanced. In the chickens given the ration containing 1% of red pepper, which showed the result similar to that of control chickens fed the ration without red pepper, retarded growth was seen as compared with the growth of the chickens fed the rations containing small amount of red pepper. Chickens administered the rations containing large amount of red pepper (5%, 10%, 60%) showed significantly retarded growth as compared with the growth of control chickens. There was no effect on the resting metabolic rate of chickens when administered varying amount of red pepper. The oxygen of resting chickens was varied $9.0-10.5ml/kg^{0.75}/min$ and rectal temperature was varied within the normal range ($41-42^{\circ}C$).

• Journal of Korean Medical classics
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• v.11 no.1
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• pp.224-307
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• 1998

The above study is based upon the Theory of Five Woon(Reasons) and Six Qi(Climates), namely Five dynamic Yin and Yang, the principle of five-six combination, the rules of ten periodically changing Woon and twelve periodically changing Qi, and its reference to the main chapters of the theory by several experts. After careful, comprehensive research and study, the followings are concluded. 1. The Theory of Five Woon and Six Qi controls all of the physical phenomena of the universe, yet it originates from Essence of the Sky that is replete and in constant motion within the abysmal expanse of the universe. So it is natural to claim that it is the Essence of the universe that is the source of the variety of phenomena in nature. 2. There is order of dynamics in the Essence and it is Yin Yang Five Movement and expressed by Five Woon and Six Qi. Therefore the Five Woon and Six Qi, which is the climatic changes of nature, is the basis and condition for all of the natural, physical occurrences including the organic phenomena of human beings. 3. Since the Sky embodied the number Five, and the Earth the number Six, Qi of the Sky itself is consequently Five Woon and Qi of the Earth itself is Six Qi. 4. In Sixty Repetition Intervals (Yuk Sip Kap Ja), the Sky took the number Six, designating the six times repetition of the ten Intervals of the Sky and the Earth chose the number Five, symbolizing five times recurrence of the twelve Intervals of the Earth. Though the number for the Sky is Five and the number for the Earth is Six, the two combine and interact in order for the Sky to exploit the number Six and for the Earth to use the number Five. This interplay implies the relationship of operation and principle of Yin in Yang and Yang in Yin. 5. There seems to be clear and intimate association between five dynamics, five bearings and five Qi' in nature and five organs, five stamina, and five emotions in physiological activities of human beings. Such an correlation apparently demonstrates the idea of climatic changes of the universe in balance among human beings, the Sky, and the Earth. 6. Because nature is of an endlessly dynamic organism itself, to have changes must mear there being movements. Thus the climatic changes in nature are the subsequent consummation of the interaction in mutual balance and unbalance of the rise and fall of the Five Woon and Six Qi. 7. The interpretation, by Chang Ji Chong of "Yin and Yang of the Sky are for birth and growth and Yin and Yang of the Earth for demise and interment" as an explanation that the first half is mainly for life and the second half for death, appears to be correct by his view that there is balance and harmony between the long and short and the strong and weak. 8. In addition to Three Yang and Three Yin, as attributes of the Intervals of the Sky and the twelve Intervals of the Earth, Five Woon and Six Qi are utilized in the annual observation of the perpetual changes of climates.

• Journal of Acupuncture Research
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• v.22 no.6
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• pp.51-60
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• 2005

Objectives : This study was designed to evaluate the effect of inbalance of autonomic nerve system on peripheral facial palsy patients in comparison of Heart Rate Variability results of healthy control group with that of peripheral facial palsy group. Methods : The peripheral facial palsy patiens who visited the Dongguk university Bundang oriental medicine hospital from April to June in 2005 were tested Heart Rate Variability items which are Mean Heart Rate(MHRT), Standard Deviation of all the Normal RR intervals (SDNN), Root Mean Square of Successive Differences Between The Normal Heart Beats(RMSSD), Total Power(TP), Low Frequency, High Frequency, ratio between the Low Frequency and High Frequency power(LF/HF ratio). The Heart Rate Variability test results of peripheral facial palsy group were compared with the HRV test results of healthy control group who didn't have nervous disease, musculoskeletal disease, heart problem and pain for the past 6 months. Results : 1. MHRT was not significantly different between peripheral facial palsy group and healthy control group(P=0.18). 2. SDNN was not significantly different between peripheral facial palsy group and healthy control group(P=0.41). 3. RMSSD was not significantly different between peripheral facial palsy group and healthy control group(P=0.93). 4. TP was not significantly different between peripheral facial palsy group and healthy control group(P=094). 5. LF and HF were not significantly different between peripheral facial palsy group and healthy control group((P=0.34, 0.30). 6. LF/HF ratio was significantly different between peripheral facial palsy group and healthy control group(P=0.04). Conclusion : LF/HF ratio is generally used as autonomic nerve system evaluation and there was significantly statistical difference between peripheral facial palsy group and healthy control group.

• Journal of Acupuncture Research
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• v.29 no.1
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• pp.75-87
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• 2012

Objectives : The purpose of this study is to inquire into the effect of different concentrations of bee venom pharmacopuncture to inhibit genesis of pro-inflammatory cytokines and to inhibit nuclear factor (NF)-${\kappa}B$ activation on type II collagen induced arthritis. Methods : The experiment was divided into category of the normal group (NOR)-no treated group, control group (CON)-CIA (collagen induced arthritis) induced group, and 4,000 : 1 bee venom group (BV-L)- 4000:1 bee venom pharmacopuncture treated group after CIA, and 2000:1 bee venom group (BV-H)- 2,000 : 1 Bee venom pharmacopuncture treated group after CIA. RA was induced in the mice via injecting $50{\mu}{\ell}$ C II mixed CFA. The bee venom pharmacopuncture was applied on $ST_{35}$ for 19 days from the 3rd day of RA inducement. To research the effect on the expression of IKK ($I{\kappa}B$ kinase), iNOS (inducible nitric oxide synthase) & COX-2 (cyclooxygenase-2) mRNA, RT-PCR was performed on synovial membrane cells from the knee joint of CIA mice. Results : The PMA-induced $I{\kappa}B$ kinase (IKK), inducible nitric oxide synthase (iNOS) and cyclooxygenase -2 (COX-2) mRNA expression were dose-dependantly decreased in bee venom treated with synoviocytes. In mice treated with bee venom pharmacopuncture, foot thickness and the damage of synovial membranes of the joint was lessened, and the activation of RA-related pro-inflammatory cytokines such as MIF, TNF-${\alpha}$ and MMP-9 was significantly decreased. The activation of iNOS and COX-2 was suppressed by the inhibition of NF-${\kappa}B$. In addition, each data was shown that 2,000 : 1 bee venom pharmacopuncture was more effective than 4,000 : 1 bee venom pharmacopuncture. Conclusions : It is speculated that bee venom pharmacopuncture has the therapeutic effect of palliating the damage of the synovial membrane and inflammation on RA by suppressing of NF-${\kappa}B$ activation.