• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 2000.11a
• /
• pp.559-562
• /
• 2000

Bending is one of the most common cold-stamping operations, recently it is many used to produce structural frame. Depending on the shape and dimensions of complex structural frame, a successive bending operation with simple dies may be economic. But, in this paper, it has been focused to reduce the bending operations by a successive-action compound die. Designed compound-die consists of blank-holder, cam, wedge and etc. In the result, this compound-die for structural frame enabled that it makes seven bending processes into one process, and improved productivity.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.5
• /
• pp.1133-1140
• /
• 2003

Clinical feature of the urticaria is characterised by sudden appearance on the certain positions of the body, scarlet or light yellow, enlarging and merging into stretches with scraching. The most common menifestations are burning heat, severe itching, fever, abdominal pain etc. It Is classified on the basis of the color. There are red and white urticaria in the classics of the Oriental medicine. Red urticaria is caused by warm-heat evil on the other hand white urticaria is caused by cold-wetness evil. It is advisable to follow the therapeutic principles of expelling warm-heat and cold-wetness evils, regulating yin-yang.

• Progress in Superconductivity and Cryogenics
• /
• v.10 no.3
• /
• pp.32-35
• /
• 2008

A common problem in many fields of cryogenic power engineering is applying high voltage to cold parts of superconducting apparatus. In many cases, a bushing provides electrical insulation for the conductor which makes the transition from ambient temperature to the cold environment. The 60 kV class cryogenic high voltage bushing for neutral line of the 154 kV / 100MVA high temperature superconducting (HTS) transformer was described. The bushing is energized with the line-to-ground voltage between the coaxial center and outer surrounding conductors; in the axial direction, there was a temperature difference from ambient to about 77 K. For the insulation design of cryogenic bushing, electrical insulation characteristics of the GFRP were discussed in this paper.

• The Journal of Pediatrics of Korean Medicine
• /
• v.26 no.4
• /
• pp.44-50
• /
• 2012

Objectives: We investigated weight gain effects of the Bofesungjangjeungbo-tang ($B\check{u}f\grave{e}ich\acute{e}ngzh\check{a}ngz\bar{e}ngb\check{u}$-tang) on thin Korean preschool children with frequent common cold or chronic rhinitis Methods Bofesungjangjeungbo-tang was empirically composed of 14 herbs for treating indigestion, and common cold or chronic rhinitis. We analyzed 60 preschool children who have visited Kim Kijoon Oriental Clinic BOM from Jan. 1, 2006 to Aug. 31, 2011 with three criteria: 1) 2~5yrs of age and BMI<50th percentile 2) children those who had taken the Bofesungjangjeungbo-tang for 1~3 month (s), 3) Availability of records on before/after treatment within 3 months. Weight gain of the children after treatment was evaluated by the changes of BMI percentile compared to pre-treatment. Results Bofesungjangjeungbo-tang significantly improved BMI percentile in all groups (1 month: $21.33{\pm}10.04$ vs $26.43{\pm}13.16$, p<0.001; 2 months: $21.90{\pm}10.28$ vs $29.03{\pm}15.06$, p<0.001; 3 months: $19.06{\pm}10.04$ vs $35.71{\pm}17.40$, p=0.001). Gender, age and pre-treatment BMI had no significant effects on the effectiveness of Bofesungjangjeungbo-tang. Conclusions: Bofesungjangjeungbo-tang positively affected weight gain in 2~5yrs Korean preschool children with BMI below 50 percentile within 1~3 month (s) of treatment. However, additional studies on functional dyspepsia or the change of energy intake are needed to understand the factors related to weight gains.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
• /
• v.23 no.3
• /
• pp.202-215
• /
• 2010

Objective : This study was performed to investigate the prevalence of otolaryngology and respiratory diseases and characteristics of the outpatients who had visited Chuncheon oriental medical hospital which located in Gangwon province with the diseases. Methods : We analyzed data from 627 patients, who had visited to the Department of ophthalmology & otolaryngology & dermatology of Chuncheon oriental medical hospital from November 1st, 2007 to May 31th, 2010. The data were analyzed and demonstrated by age, gender, season, period between the onset of disease and the first examination, times of treatment, and treatment methods. Results : The results of this study are summarized as follows. 1. Among the 627 outpatients, male patients outnumbered female patients, and the most frequent age group was 0-10 year-old group(24.9%) and it is followed by 31-40 and 41-50 year-old groups. The majority of outpatients, 79.7% of them were from Chuncheon, and Hongcheon and Gapyeong residents were respectively 4.7% and 3.8% of the patients. 2. The shares of outpatients by department were 47.4% in Rhinology disease, 29.8% in respiratory disease, 14.5% in Otology disease, and 8.3% in Laryngology disease. The seasons with the most frequent prevalence by department were spring and winter for otology group, autumn and spring for rhinology group, summer and spring for laryngology group, and winter and spring for respiratory disease group. Overall, most outpatients had visited the hospital for 1-5 times or 6-10 times. Acupuncture and herbal medicine were the most frequent treatment methods that these patients received. 3. The most prevalent diseases were rhinitis, common cold, tinnitus, and sinusitis. The most frequently visited age groups for tinnitus and hearing loss were 41-50 and 51-60 year-old groups, and for rhinitis and sinusitis 0-10 and 11-20 year-old groups. Irritation in larynx was almost evenly prevalent among 31-40, 41-50 and 51-60 age groups. Regarding the period between the onset of disease and the first medical examination, outpatients with tinnitus, rhinitis, sinusitis, and irritation in larynx came to the hospital after one year since the onset and outpatients with common cold first visited the hospital within one week since the onset of disease. Conclusions : This study shows that the most frequent diseases were rhinitis, common cold, sinusitis, tinnitus, and cough. In order to do better treatment for these diseases in the future, there is a need to investigate long-term, multifaceted studies, connected studies with other hospital in Gangwon province.

• Asian-Australasian Journal of Animal Sciences
• /
• v.26 no.3
• /
• pp.366-377
• /
• 2013

We examined the nutritive value of common grass species in the semi-arid rangelands of Borana in southern Ethiopia using local experience based herbage preference (LEBHP) perception and laboratory techniques. Local pastoralists in the study area were asked to identify common grass species and rank them according to the species' preferences and palatability to cattle. The pastoralists listed a total of 15 common grass species which were then sampled during the main rain and cold dry seasons and analyzed for crude protein (CP), Neutral Detergent Fiber (NDF), Acid Detergent Fiber (ADF) and ash content to verify pastoralists' claim regarding the quality of individual species. The relative feed value (RFV) and dry matter digestibility (DMD) were also calculated using NDF and ADF contents. Spearman's rank correlation was used to examine possible relationships between laboratory results and pastoralists' experience on grass quality. Cenchrus ciliaris, Chrysopogon aucheri, Digitaria milanjiana, Eragrostis papposa and Panicum maximum were the top five species based on LEBHP perception. There were indications of inconsistency in terms of LEBHP perception among the different pastoral communities. The chemical composition of all grass species showed significant (p<0.05) variation between sites, seasons and species. The results showed that the CP values for the Borana rangelands were in the range of 8.7% in the main rain season to 5.1% for the cold dry season. The fiber constituents were relatively low in the main rain season compared to the cold dry season. Overall, Digitaria milanjiana had the highest CP (16.5%) content, while the least was recorded with Heteropogon contortus (10.8) and Aristida adoensis (9.8%) during the main rain season. It seems that the spatial variability of landscapes within the wider geographical regions, soil properties and texture, and land-use patterns probably contributed to site differences in species quality. Generally, the RFV of individual grass species was significantly (p<0.05) varied between and within sites. The ranking of species by pastoralists according to their preferences by cattle was highly correlated with the chemical composition of laboratory results of individual grass species with 'r' values for CP (0.94), ash (0.95), NDF (-0.98), ADF (-0.93) and ADL (-0.93). We suggest the complimentary use of LEBHP and laboratory techniques in evaluating the nutritive quality of rangeland forage species for sustainable animal production.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.21 no.4
• /
• pp.835-841
• /
• 2007

The followings are concluded from the treatment of headache in Hyungsang medicine, focussed on 11 kinds of headaches in Donguibogam. Headache is classified into overall headache and migraine according to the affected region. The causes are divided into exogenous affection and internal injury; The former brings on headache due to Wind-Cold and headache due to Damp-Heat. The latter, reversal headache, headache due to adverse rising of phlegm, headache due to regurgitation of Gi, headache due to excessive Heat, headache due to excessive Damp, true headache, and alcoholic headache. Headache due to internal injury generally tends to show deficiency syndrome with external affection. Headache due to exogenous affections is common to those who have big head or white skin and to Bangkwang type, and woman. The primary causes are Wind-Cold and Wind-Heat. When the body is observed in the perspective of eight phases, Damp-Heat is to be produced in the front, and Dry-Damp, in the back. Headache due to Damp-Heat is susceptible to Yangmyeong meridian type whose body develops more in the front and to woman. In the perspective of the upper and the lower, Yangdu(that is, head) is related to Eumdu(that is, glans of penis). Headache is also caused by the problems of Eumdu ,such as deficiency of Essence in man, pathologic change of uterus in women, and San syndrome in lower abdomen. In the case of man, headache is frequently severe and difficult to treat because head is a root for man. Disharmony of Gi and blood between the right and the left brings out migraine and headache due to regurgitation of Gi. Migraine is usually accompanied by symptoms of exogenous affection and often afflicts Gi-type, Shin-type, Soyang meridian type, deer type, and Dam-type. Headache due to regurgitation of Gi is brought by Gi deficiency or blood deficiency so that symptoms of exogenous affection do not show. It is mainly common with old people and those who have sunken eyes induced by deficiency of stomach Gi. In the perspective of the upper, the middle, and the lower, the pathologic change of head, chest and abdomen also bring about headache. The pathologic cause of head is Wind-Heat ,which triggers overall headache, migraine, headache due to Wind-Cold, headache due to excessive Heat, The pathogen of chest is phlegm-Fire and brings out headache due to Damp-Heat and headache due to adverse rising of phlegm. The pathologic factor in abdomen is Cold-Damp and produces headache due to adverse rising of phlegm and headache due to excessive Damp. In case of women, headache is generally caused by phlegm-Fire and retention of undigested food.

• Proceedings of the Korean Vacuum Society Conference
• /
• 2015.08a
• /
• pp.104-104
• /
• 2015

Due to the demand of the cold neutron flux in the neutron science and beam utilization technology, the cold neutron source (CNS) has been constructed and operating in the nuclear research reactor all over the world. The majority of the heat load removal scheme in the CNS is two-phase thermosiphon using the liquid hydrogen as a moderator. The CNS moderates thermal neutrons through a cryogenic moderator, liquid hydrogen, into cold neutrons with the generation of the nuclear heat load. The liquid hydrogen in a moderator cell is evaporated for the removal of the generated heat load from the neutron moderation and flows upward into a heat exchanger, where the hydrogen gas is liquefied by the cryogenic helium gas supplied from a helium refrigeration system. The liquefied hydrogen flows down to the moderator cell. To keep the required liquid hydrogen stable in the moderator cell, the CNS consists of an in-pool assembly (IPA) connected with the hydrogen system to handle the required hydrogen gas, the vacuum system to create the thermal insulation, and the helium refrigeration system to provide the cooling capacity. If one of systems is running out of order, the operating research reactor shall be tripped because the integrity of the CNS-IPA is not secured under the full power operation of the reactor. To prevent unscheduled reactor shutdown during a long time because the research reactor has been operating with the multi-purposes, the introduction of the standby cooling system (STS) can be a solution. In this presentation, the design considerations are considered how to design the STS satisfied with the following objectives: (a) to keep the moderator cell less than 350 K during the full power operation of the reactor under loss of the vacuum, loss of the cooling power, loss of common electrical power, or loss of instrument air cases; (b) to circulate smoothly helium gas in the STS circulation loop; (c) to re-start-up the reactor within 1 hour after its trip to avoid the Xenon build-up because more than certain concentration of Xenon makes that the reactor cannot start-up again; (d) to minimize the possibility of the hydrogen-oxygen reaction in the hydrogen boundary.

• Applied Chemistry for Engineering
• /
• v.28 no.4
• /
• pp.460-466
• /
• 2017

The common petroleum can make precipitation such as a wax in a polar region due to severely cold weather condition, which can cause problems to fuel supply system. The petroleum product used in the polar region has thus been manufactured and sold suitable for the cold environment. However it is difficult to supply such petroleum products on time since these were mainly supplied abroad. In this article, the original fuel properties were first analyzed in order to find alternative fuel products for polar region. Jet fuel which is excellent cold characteristics was chosen and the fuel properties was tested by adding a constant concentration of lubricant additives to the jet fuel. As a result, the lubricant additive R621 showed the best lubricity, and adding 1000 mg/L of R621 content to the jet fuel was sufficient to enhance the lubricity. We envision that the jet fuel added 1000 mg/L of R621A can be suitable for alternative special antarctic blend diesel (SAB) in an severe polar environment.

• Herbal Formula Science
• /
• v.28 no.4
• /
• pp.385-406
• /
• 2020

Objectives : To study the use of Cinnamomum cassia among the 394 prescriptions listed in Donguibogam Methods : After selecting a total of 394 prescriptions, 284 prescriptions with Cinnamon Cassia as the protagonist were analyzed and summarized in the table. In particular, the investigation was conducted by comparing the Cinnamomi Ramulus and Cinnamomi Cortex. Results : The Cinnamomum cassia is used in 52 fields of treatment such as common cold & flu diseases, abscess and stroke, etc. Prescriptions containing Cinnamomi Ramulus were most commonly used for cold disease. And prescriptions containing Cinnamomi Cortex were most commonly used for wind diseases. Prescriptions that utilize Cinnamomum cassia are used in the treatment of feeling of cold, numbness, low back pain, cough and so on. Prescriptions containing Cinnamomi Ramulus mainly treat cold disease. And prescriptions containing Cinnamomi Cortex treat mainly abdominal pain and diarrhea. 14 prescriptions of the same name are included with Cinnamomum cassia. The other unclassified Cinnamomum cassia is considered suitable for use with Cinnamomi Cortex. Cinnamomum cassia is only used as a raw material. Conclusions : According to the classification of Cinnamomum cassia, further study of prescription utilization is needed.