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Fibrinolytic and Antiplatelet Aggregation Properties of a Recombinant Cheonggukjang Kinase
Chinzorig Radnaabazar,박충무,김정환,차재호,송영선 한국식품영양과학회 2011 Journal of medicinal food Vol.14 No.6
This study characterized the efficacy of recombinant Cheonggukjang kinase (CGK) 3–5-rich fraction as a thrombolytic agent, which we overexpressed in Bacillus licheniformis ATCC10716, a strain normally lacking fibrinolytic activity. We found that CGK3-5 is a plasmin-like protease that directly degrades fibrin clots and does not activate plasminogen during fibrin clot lysis and platelet-rich clot lysis assays. We also confirmed antiplatelet and antithrombotic activity by CGK3-5-rich fraction both in vitro and in vivo. CGK3-5-rich fraction inhibited collagen-induced platelet aggregation in platelet-rich plasma in a concentration-dependent manner. The concentration of 1.5 mg/mL CGK3-5-rich fraction completely inhibited collagen-induced platelet aggregation. Furthermore, injection of CGK3-5-rich fraction into tail veins dose-dependently protected mice from death by pulmonary embolism induced by collagen and epinephrine. The survival rates were 30%, 70%, and 100%, respectively, with doses of 130 mg/kg, 260 mg/kg, and 520 mg/kg. These findings suggest that CGK3-5 holds promise as a treatment to mitigate the potentially effects of stroke and heart failure.
A Feasibility Study on TETRA System Application for Train Control Systems
Chinzorig Tsogtbayar,Hyoungseok Kang,Jongwoo Lee,Tsevelsuren Boldbaatar 한국철도학회 2016 International Journal of Railway Vol.9 No.2
TETRA communication system is very versatile system which can transmit voice + data and packet data optimized. Direct mode operation permits to connect between mobiles when mobile stain is out of coverage of networks. It can be more secure communication channel for railway signaling systems. Railway signaling systems use many of wayside signal equipment, which require many maintenance efforts and budget. Many railway authorities want to reduce and replace the wayside equipment. Radio based signaling systems are one of candidate for replacing the conventional signaling systems. The radio based signaling systems can replace track circuit and wayside signal. The radio systems permit to connect between control centers and trains. The radio systems have to ensure high quality of the connectivity more or equal to the existed track circuits. We studied the application of TETRA systems for railway radio systems for bridging between train control centers and trains. We provide an operation scenario for radio based train control system to ensure the safety require to the existed trains control system and satisfied the existed operational availability. We showed the data transmission speed, maximum bit error rate, and data coding for the radio-based signal system using TETRA systems.
Climate Change Impact on the Tuul River Flow in a Semiarid Region in Mongolia
Sukhbaatar, Chinzorig,Sajjad, Raja Umer,Lunten, Janchivdorj,Yu, Seung-Hoon,Lee, Chang-Hee Wiley (John WileySons) 2017 Water environment research Vol.89 No.6
<P>This study investigated the impact of climate change on the Tuul River flow in a semiarid region in Mongolia using statistical methods and the Soil and Water Assessment Tool (SWAT). The authors found that the precipitation showed cyclic variability (three dry and two wet periods) at inter-and multi-decadal scales throughout the study period (1945-2012). Both river flow and actual evapotranspiration (ET) showed a positive relationship with precipitation. In addition, the river flow further decreased due to increased water loss in percentage via actual ET even though the amount of actual ET decreased during dry periods. A significant increase in air temperature by 1.3 to 1.8 degrees C was recorded during latest dry period (1996-2012). Increase in temperature resulted in an added stressor, where water loss in percentage via actual ET increased more and resulted in an additional decrease in the river flow. This study concluded that precipitation has a stronger influence on the Tuul River flow than temperature.</P>
Mechanical texture profile of Hanwoo muscles as a function of heating temperatures
( Ochirbat Chinzorig ),( Inho Hwang ) 한국축산학회(구 한국동물자원과학회) 2018 한국축산학회지 Vol.60 No.9
Background: Cooking temperature and consequently doneness of beef muscles are most important for the palatability and consumer acceptability. Current study assessed the response of mechanical texture of Hanwoo muscles as a function of cooking temperature at different ageing days. Six muscles (Psoas major (PM), Longissimus thoracics (LT), Gluteus medius (GM), Semimembranosus (SM), Biceps femoris (BF) and Triceps brachii (TB)) were collected from each 10 Hanwoo steers. Warner-Bratzler WB-shear force (WBSF) and texture profile analysis (TPA) texture profiles were determined after 3 or 21 days of chiller, and randomly assigned to four groups; non-cooked, cooked at 55, 70 or 85 °C. Results: Toughness of WBSF and TPA hardness of Hanwoo muscles were presence in the order of LT = PM = GM= SM< BF = TB (p < 0.001) for non-cooked raw muscle, and PM< LT = GM= SM < TB=BF (p < 0.001) for cooked meat aged for 3 days. WBSF linearly increased in 3 days aged meats after cooked at a higher temperature (P < 0.05). On the other hand, toughening of the muscles were significantly (P < 0.05) differed at various temperature when muscles were aged for 21 days. WBSF of PM and LT muscles were significantly increased at a higher cooking temperature, while other muscles (i.e., GM, SM, BF, TB) showed the lowest values at 70 °C. In the case of TPA hardness, the effect of cooking temperature was very less in the toughness of the muscle (P > 0.05). Conclusion: Taken together, these findings clearly showed that the toughness of the muscle highly depends and varies upon the temperature and ageing of the muscle. Moreover, the effect of cooking temperature was very limited on aged muscles. The results mirror the importance of cooking temperature for objective measurements which ultimately estimate sensory tenderness and other quality traits.