• Herbal Formula Science
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• v.10 no.1
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• pp.105-112
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• 2002

Yongyanggaktang has been used in oriental medicine as a therapeutic agent for cerebral disease and eclampsia for many years. The purpose of this study was to determine the effect of Yongyanggaktang and its exception of Cornu Saigae Tataricae(羚羊角) in YYG about regional cerebral blood flow(rCBF) in rats. 1. rCBF was increased by Yongyanggaktang in dose dependently. 2. rCBF was increased by exception of Cornu Saigae Tataricae(羚羊角) in YYG at high dosages. 3. rCBF was decreased by Yongyanggaktang pretreated propranolol. 4. L-NNA did not affect rCBF. 5.ODQ did not affect rCBF. Above the results. Yongyanggaktang relates to the symphathetic action.

• Radiation Oncology Journal
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• v.6 no.2
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• pp.277-281
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• 1988

Although widely used in external beam treatment planning, computed tomography scans are infrequent in incranial tumors by implanting of Radioactive isotope. This incranial brachytherapy has only become possible by using CT scans and stereotaxic operation methods. The coincidence of single source and tumor axes in brachytherapy is very important to determine the therapeutic dosages. Eventhough using the CT scan, according to spatial location of tumor tying, the section of tumor will be seen enlargement, cause the tumor will be cut off with slight angle to its axes. Correct analysis of tumor size from source is required for rotated axes in analytical geometry.

• Toxicological Research
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• v.17 no.2
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• pp.107-114
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• 2001

This study was designed to evaluate a repeated oral dose toxicity of a new hepatotherapeutic agent GODEX in Sprague-Dawley rats. Male and female rats were orally administered with dosages of 500, 100, 20, and 0 /kg/day of GODEX daily for 4 weeks, respectively. There were no dose-related changes in clinical signs, body weight changes, food and water consumption, opthalmoscopy, organ weights, urine analysis, biochemical examination, and hematological findings of all animals treated with GODEX. Gross and histopathological findings revealed no evidence of specific toxicity related to GODEX. These indicate that GODEX may have no side effects and its oral maximum tolerated dose value may be over 500 mg/kg in rats.

• Biomolecules & Therapeutics
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• v.10 no.2
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• pp.89-98
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• 2002

In this study general pharmacological profiles of KI-60606 on the central nervous system, the cardiovascular system and the other organs were investigated. The dosages given were 0,5, 10 and 25 mg/kg and drugs were administered intravenously. The animals used for this study were mice, rats, cats and guinea pigs. KI-60606 showed no effects on general behavior, motor coordination, spontaneous locomotor activity, hexobarbital-induced hypnosis time, body temperature, analgesic activity, anticonvulsant activity and contraction of nictitating membrane in cats. Furthermore KI-60606 showed no effects on blood pressure, heart rate, LVP (left ventricular peak systolic pressure), LVEDP (left ventricular end diastolic pressure), LVDP (left ventricular developing pressure), DP(double product), CFR(coronary flow rate), smooth muscle contraction using guinea pig ileum and gastric secretion at all dosage tested except the increase of gastrointestinal transport and urinary $K^+$ excretion.

• Journal of Korea Technical Association of The Pulp and Paper Industry
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• v.38 no.4 s.117
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• pp.61-67
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• 2006

The effect of several inorganic flame-retardants such as ammonium phosphate, ammonium sulfate, aluminum hydroxide and antimony trioxide on the flame-retardant property and tensile strength of paper has been investigated. Flame-retardants were used preferably as a dry powdered mixture and added to the furnish. Both dipping and coating treatments were employed to apply flame-retardants to paper Flame-retardant paper was manufactured by treatment of $5{\sim}30%$ flame-retardants by weight of the paper on a dry weight. Paper's flame-retardant property and tensile strength were examined by comparison of char length and tensile index. As dosages of flame-retardant chemicals increased, flame-retardant property was improved but tensile index was decreased.

• Journal of Pharmacopuncture
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• v.6 no.2
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• pp.113-118
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• 2003

Results : 1. Vermilionum is made from the mixture of mercury and sulfur, resulting in reddish mercuric sulfide(Hg2S). 2. The characteristics for Vermilionum are pungent and sweet, has warm temperature, and enters heart, lung, and stomach meridians. 3. The efficacies of Vermilionum are to eliminate parasites, expels phlegm and dampness, and sedate heart and calm spirit. 4. Long-term intake make results in mercuric toxication. 5. Further researches on the administration methods and dosages are required to reduce side effects.

• International Journal of Concrete Structures and Materials
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• v.3 no.2
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• pp.91-95
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• 2009

Reclaimed asphalt pavement (RAP) is abundant substitute for natural aggregate in many areas. It is obtained by crushing of old road pavements in milling machine during rehabilitation and reconstruction process. In this study, reclaimed asphalt pavement mortars (RAPM) have been produced with different cement dosages and replacement ratios. The destructive and nondestructive tests have been conducted on specimens to determine physical and mechanical properties of RAPM. The free and restrained shrinkage tests on RAPM have been conducted to predict fractural behavior of mortars. The aim of the shrinkage tests was to delay crack formation and improve strain capacity of mortars before cracking. The results showed that RAPM exhibits lower elasticity modulus; however the tensile capacity was improved for deformation before cracking.

• Journal of Environmental Science International
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• v.21 no.9
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• pp.1043-1051
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• 2012

Coagulation, flocculation, and dissolved air flotation (DAF) experiments were performed with humic acid to evaluate the influence of operational conditions on removal efficiencies. We investigated coagulation, flocculation, and flotation conditions of humic acid removal using a laboratory-scale DAF system. This paper deals with coagulant type (aluminum sulfate and PSO-M) and the most relevant operational conditions (velocity gradients for coagulation and flocculation, retention time and recycle ratio and flotation time). Results showed that optimal conditions for removing humic acid, yielding CHA removal efficiencies of approximately 85 %, are a recycle ratio of 40 %, coagulant dosages of 0.15 - 0.20 gAl/gHA as aluminum sulfate and 0.03 - 0.12 gAl/gHA as PSO-M, coagulation($400s^{-1}$ and 60s), flocculation($60s^{-1}$ and 900s or more), and flotation(490 kPa or more and at least 10 min).

• Proceedings of the Korean Society For Composite Materials Conference
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• 2004.10a
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• pp.88-91
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• 2004

In this study, a number of natural fiber henequen reinforced polymer matrix composites were successfully fabricated by means of a compression molding technique using chopped henequen fibers surface-treated with different electron beam irradiation (EBI) dosages, thermoplastic poly(butylene succinate), thermosetting unsaturated polyester and phenolic resins. Their interfacial and thermal characteristics were studied in terms of interfacial shear strength, fracture surface, dynamic mechanical properties, dimensional stability, and thermal stability using single fiber microbonding test, SEM, DMA, TMA, and TGA. The results show that their interfacial and thermal properties significantly depend on the intensity of EBl treatment on the natural fiber surface.

• Toxicological Research
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• v.15 no.1
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• pp.69-73
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• 1999

Acute toxicity of typhoid vaccine was investigated using Sprague-Dawley (SD) rats and beagle dogs. SD rats and beagle dogs were administered intramuscularly with dosages of 0,. 0.2, 0.1, 0.05 and 0.025 mg/kg, respectively. In animals administered with typhoid vaccine, there were neither dead animals nor significant changes of body weights. In addition, no differences were found between control and treated groups in clinical signs and autopsy findings. Therefore, LD50 of typhoid vaccine was considered to be higher than 0.2 mg/kg in SD rats and beagle dogs.