• Proceedings of the KSME Conference
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• 2002.08a
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• pp.229-232
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• 2002

For the purpose of Thermal Protection Material design problem, a numerical analysis of axisymmetric high temperature supersonic impinging jet flows of exhaust gas from combustor on curved surfaces has been accomplished. A modifed CSCM Upwind Navier-Stokes method which is able to cure the carbuncle Phenomena has been developed to study strong shock wave structure and thermodynamic wall properties such as pressure and heat transfer rate on various curved surfaces. The results show that the maximum heat transfer rate which is the most important parameter affecting thermo-chemical surface ablation on the plate did not occur at the center of jet impingement, but rather on a circle slightly away from the center of impingement and the shear stress distribution alone the wall is similar to the wall heat transfer late distribution.

• 한국전산유체공학회:학술대회논문집
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• 1999.11a
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• pp.48-58
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• 1999

The Characteristic Flux Difference Splitting (CFDS) scheme designed to adapt the characteristic boundary conditions at the wall and inflow/outflow boundary planes satisfies Roe's property U, although the CFDS Jacobian matrix is decomposed by a product of elaborate transformation matrices and explicit eigenvalue matrix. When the CFDS algorithm, thus a variant of Roe's scheme, is applied straightforwardly to hypersonic flows over a blunt body, the strong bow shock gradually breaks down near the stagnation point. This numerical instability is widely observed by many researchers employing flux-difference method, known in the literature as the carbuncle phenomenon. Many remedies have been proposed and resulted in partial cures. When the idea of Sanders et al. which identifies the minimum eigenvalues near the discontinuity present is applied to CFDS method, it is shown that the instability problem can be controlled successfully. A few flux splitting methods have also been tested and results are compared against the Nakamori's Mach 8 blunt body flow.

• 한국전산유체공학회:학술대회논문집
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• 1998.05a
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• pp.82-89
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• 1998

There are many moving-body problems to be solved, the solution of which necessary for proper design of flight vehicles in aerospace industry. Since a body moves relative to other bodies in the category of these problems, difficulty arises regarding both generation of computational grid around the body in motion and conservation of flow properties in the moving grid system. A few example could be store separation from the aircraft and relative vibration of multiple bodies in the high-speed flow passage. In this paper we report on the progress made in computing moving-body aerodynamics related with sabot separation characteristics. Conservative overlapping grid together with cell-merging-unmerging technique is used to solve the Euler equations for a body in high-speed motion. Carbuncle errors has to be removed before we obtain physically adequate solution. Two-dimensional application is reported here.

• Herbal Formula Science
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• v.10 no.2
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• pp.251-260
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• 2002

The application of Shinkihuan umder the combination of configuration, color, pulse and symptoms leads to the following conclusions: 1. Shinkihuan is applied to the diseases related with lung, kidney and the spine: difficult urination of old people, shortness of breath, hematuria, loss of voice, distorted vision, deafness of deficiency, hemorrhoids, thirst, carbuncle, suppurative infection, children's retardation of walking and noma, etc... 2. The effect of Shinkihuan is as follows. It nourishes the lung, replenishes the kidney fluid, relieves the phlegm, tranquilizes fever due to deficiency of blood and reinforces the liver. 3. Shinkihuan is appropriate for the persons with the following characteristics in configuration: male, tall, thin, dam-typed, inverted-triangular, prominent nosed and dry.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.13 no.1
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• pp.100-115
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• 2000

Taklysodoksan(TSS) was a drug used in the treatment of carbuncle and cellulitis in oriental medicine. The purpose of this Study is to investigate the anti-cancer effect of TSS, the proliferation of immunocytes and nitric oxide(NO) production from peritoneal macrophages of mice. This Study estimated the proliferation of Ll210 cell lines, mouse thymocytes and splenocytes and NO production from peritoneal macrophages in vitro and vivo. The proliferation of cells was tested using a colorimetric tetrazoliun assay(MTT assay). From the in vitro and vivo Study of TSS treatment, it did not effect the proliferation of L1210 cells. It also did not have any positive prodution of NO in peritoneal macrophages. This results suggest that TSS treatment in WanBingHuiChun(萬病回春) did not have significant anti-cancer effect and immuno-action comparing with TSS treatment of WaiKeZhengZhong(外科正宗).

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.13 no.1
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• pp.129-140
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• 2000

ShingongNaetakSan(SNS) was drugs used in treatment of carbuncle and cellulitis in Oriental So, the purpose of this Study was to investigate effect of SNS on the proliferation of immunocytes and anti-cancer. This Study estimated the proliferation of L1210 cell lines and S-180 cell lines in vitro. and estimated the proliferation of L1210 cells, thymocytes and splenocytes, and tumor weight, body weight and mean survival rates in vivo. The proliferation and cytotoxicity of cells was tested using a colorimetric tetrazoliun assy(MTT assy). The results of this study were obtained as follow ; SNS had effect on the proliferation of L1210 cells in vitro and splenocytes in vivo, and SNS decreased significantly tumor weight, and increased significantly mean survival rates.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.15 no.2
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• pp.132-144
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• 2002

Shinsuwuisaeng-Tang was a drug that treated carbuncle and cellulitis. So, the purpose of this Study was to investigate effect of Shinsuwuisaeng-Tang on the anti-cancer and nitric oxide(NO) production of peritoneal macrophages. We used Shinsuwuisaeng-Tang extract(SWT) with freeze-dried, 8wks-old male mice. and cancer cell lines(L1210, sarcoma-180) for this Study. The proliferation of cells was tested using a colorimetric tetrazoliun assay(MTT assay). The results of this Study were obtained as follow; SWT was showed cytotoxicity on the L1210 and sacoma-180(S-180) cell lines, SWT inhibited significantly proliferation of L1210 cells in L1210 cells transplanted mice, SWT accelerated NO production of peritoneal macrophages in L1210 cells transplanted mice. And SWT inhibited significantly tumor weight, increased significantly body weight and mean survival days in S-180 cells transplanted mice. This results suggest that SWT has anti-cancer by producing NO of peritoneal macrophages.

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.204.3-205
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• 2003

Antimutagenic activity-guided fractionation of an extract prepared from the thorns of Gleditsia sinensis Lam. (Leguminosae), which is a perennial shrub widely distributed throughout China (called "Zao Jiao Ci" ) and in Gyeongju city area in Korea (called "Jo Gak Ja" ) and has been used in traditional medicine for the treatment of swelling, suppuration, carbuncle and skin diseases, led to the isolation of one triterpenoid and four steroids, which were identified as D:C-friedours-7-en-3-one (1), stigmastane-3,6-dione (2), ${\beta}$-sitosterol (3), sigmasterol (4), and stigmast-4-en-3,6-dione (5). (omitted)

• The Bulletin of The Korean Astronomical Society
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• v.45 no.1
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• pp.55.1-55.1
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• 2020

In an attempt to investigate the nonlinear dynamics such as shock, shear, and turbulence associated with ultra-relativistic jets, we develop a new relativistic hydrodynamics (RHD) code based on the weighted essentially non-oscillatory (WENO) scheme. It is a 5th-order accurate, finite-difference scheme, which has been widely used for solving hyperbolic systems of conservation equations. The code is parallelized with MPI and OpenMP. Through an extensive set of tests, the accuracy and efficiency of different WENO reconstructions, and different time discretizations are assessed. Different implementations of the equation of state (EOS) for relativistic fluid are incorporated, As the fiducial setup for simulations of ultra-relativistic jets, we adopt the EOS in Ryu et al. (2006) to treat arbitrary adiabatic index of relativistic fluid, the WENO-Z reconstructions to minimize numerical dissipation without loss of stability, and the strong stability preserving Runge-Kutta (SSPRK) method to achieve stable time stepping with large CFL numbers. In addition, the code includes a high-order flux averaging along the transverse directions for multi-dimensional problems, and the modified eigenvalues for the acoustic modes to effectively control the carbuncle instability. We find that the new code performs satisfactorily simulations of ultra-relativistic jets.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.8 no.1
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• pp.131-132
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• 1995

After studing of viewpoint of surgical disease in seven medical books related with Ju Dan Gye(朱丹溪) among four eminent physicians in the Jin and Yuan dynasties(金元四大家) I get conclsion as following. 1. Studied surgical diseases are total 40 kinds. 2. In 40 kinds surgical diseaes, case of having theory are 20 kinds, cases of having no theory and having only treatement by medicine are 20 kinds. 3. In therapy, cases that mainly use a method to eliminate pathogenic factors are 27 kinds; Acute mastitis(乳癰), Deep-seated mammary abscess(내巖), Acute appendicitis(陽癰), Bone cellulitis(附骨疽), Carbuncle of the lower abdomen near external genitalia(便毒), Leprosy(癩風), Macule(斑), Rash(疹), Urticaria(은疹), Scrofula(나역), Stagnant plegm(結核), Goiter andtumer(영유), Erysipelas(丹), Furuncle(정瘡), Scabies(疥瘡), Chancre(下疳瘡), Syphilitic skin disease(樣梅瘡), Incised wound (金瘡), Dermatopathy of lower limb and heel(脚足部瘡), Pemphigus(天疱瘡), Itching eruption due to blood-heat or wind heat(血風瘡), Dermatopathy of head(頭面瘡), Scald and burn(湯火瘡), Tetanus(破傷風) , Ecthyma(염瘡), Fistula(久漏瘡), Tinea(癬瘡), Cases that mainly use external therapy are 5 kinds; Rhagades of hand and foot(手足군裂), Vulvar ulceration(婦人陰瘡), Chilblain(凍瘡), Rabies(풍狗咬), Tinea capitis(白禿瘡), Cases that mainly use a reinforcing method are 4 kinds; Internal deep-rooted carbuncle(內疽), Pruritus and dryness of skin(皮膚乾燥), Anul fistula(漏瘡), Macule Caused by disorder of internal organ(內傷發斑), Cases that mainly use eliminating first and then reinforcing are 2 kinds; Pyogenic infection and ulcerous disease of slin( 疽瘡상癰疽瘡瘍), Lung abscess(肺癰), Case that mainly uses reinforcement and elimination in combination is only Haemorroid(痔瘡). Case divided into two groups that are reinforcing method and a method to eliminate pathogenic factor is only Trauma(打撲). Case that have no treatment by medicine is only Abscess of the scrotum(囊癰). 4. In 40 kinds surgical diseases, we can know that except a few important surgical diseases, Ju Dan Gye haven't distinguished viewpoint in many surgical diseases, because there are many cases that have no theory and have only simple treatment of medicine, and that mainly use a method to eliminate pathogenic factors and external therapy. 5. Representative theory of Ju Dan Gye, nourishing Yin and extinguishing fire(滋陰降火), has little effect on therapy of surgical disease. We need to try statistical division of internal and external remedy in the future, and by studing of surgical disase in medical books related with four eminent physicians in the Jin and Yuan dynasties, I think we can see their viewpoint of surgical disease.