• Title/Summary/Keyword: TM-S

Search Result 1,199, Processing Time 0.033 seconds

Potential use of mine tailings and fly ash in concrete

  • Sunil, B.M.;Manjunatha, L.S.;Ravi, Lolitha;Yaragal, Subhash C.
    • Advances in concrete construction
    • /
    • v.3 no.1
    • /
    • pp.55-69
    • /
    • 2015
  • Tailing Material (TM) and Fly Ash (FA) are obtained as waste products from the mining and thermal industries. Studies were carried out to explore the possibility of utilizing TM as a part replacement to fine aggregate and FA as a part replacement to cement, in concrete mixes. The effect of replacing fine aggregate by TM and cement by FA on the standard sized specimen for compressive strength, split tensile strength, and flexural strengths are evaluated in this study. The concrete mix of M40 grade was adopted with water cement ratio equal to 0.40. Concrete mix with 35% TM and 65% natural sand (TM35/S65) has shown superior performance in strength as against (TM0/S100, TM30/S70, TM40/S60, TM50/S50, and TM60/S40). For this composition, studies were performed to propose the optimal replacement of Ordinary Portland Cement (OPC) by FA (Replacement levels studied were 20%, 30%, 40% and 50%). Replacement level of 20% OPC by FA, has shown about 0-5% more compressive strength as against the control mix, for both 28 day and 56 days of water curing. Interestingly results of split tensile and flexural strengths for 20% OPC replaced by FA, have shown strengths equal to that of no replacement (control mix).

Antibacterial Properties of Pit and Fissure Sealant Containing S-PRG filler on Streptococcus mutans (S-PRG filler를 포함한 치면열구전색제의 Streptococcus mutans에 대한 항미생물 특성에 관한 연구)

  • An, Jinseon;Park, Howon;Seo, Hyunwoo;Lee, Siyoung
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.42 no.4
    • /
    • pp.302-311
    • /
    • 2015
  • The purpose of this study was to evaluate the antibacterial properties of a sealant containing S-PRG filler compared to those of two contemporary commercial sealants to determine the inhibition of bacterial growth in broth culture and biofilm formation using the CDC Biofilm Reactor. The BeautiSealant containing S-PRG filler, the fluoride releasing Clinpro$^{TM}$ sealant, which are known to have higher antibacterial effects, and the non-fluoride releasing Concise$^{TM}$ sealant were selected for this study. A Streptococcus mutans culture in BHI broth without sealant served as a negative control in the planktonic growth inhibition test. As a result, bacterial growth was inhibited in all three sealant groups compared to that in the control. The Clinpro$^{TM}$ sealant showed a significantly reduced number of CFUs compared to those of the BeautiSealant and Concise$^{TM}$ sealants. However, no significant difference was detected between the BeautiSealant and Concise$^{TM}$ sealants. The Clinpro$^{TM}$ sealant significantly decreased biofilm formation compared to that by the BeautiSealant and Concise$^{TM}$ sealants. No significant difference was observed between the BeautiSealant and Concise$^{TM}$ sealants. In conclusion, the sealant containing S-PRG filler had a less potent anti-bacterial property and increased biofilm formation capacity compared to those of the fluoride releasing Clinpro$^{TM}$ sealant.

Functional properties of the thermostable mutL from Thermotoga maritima

  • Kim, Tae-Gyun;Heo, Seong-Dal;Ku, Ja-Kang;Ban, Chang-Ill
    • BMB Reports
    • /
    • v.42 no.1
    • /
    • pp.53-58
    • /
    • 2009
  • The methyl-directed mismatch repair (MMR) mechanism has been extensively studied in vitro and in vivo, but one of the difficulties in determining the biological relationships between the MMR-related proteins is the tendency of MutL to self-aggregate. The properties of a stable MutL homologue were investigated using a thermostable MutL (TmL) from Thermotoga maritima MSB8 and whose size exclusion chromatographic and crosslinking analyses were compatible with a dimeric form of TmL. TmL underwent conformational changes in the presence of nucleotides and single-stranded DNA (ssDNA) with ATP binding not requiring ssDNA binding activity of TmL, while ADPnP-stimulated TmL showed a high ssDNA binding affinity. Finally, TmL interacted with the T. maritima MutS (TmS), increasing the affinity of TmS to mismatched DNA base pairs and suggesting that the role of TmL in the formation of a mismatched DNA-TmS complex may be a pivotal observation for the study of the initial MMR system.

Evaluation of the $HApS^{TM}$ Method for the Enumeration of Aerobic Microorganisms and Coliforms in Retailed Meat Samples in Korea

  • Keun-Seok Seo;Wonki Bae;So-Hyun Kim;Nam-Hoon Kwon;Ji-Yeun Kim
    • Journal of Food Hygiene and Safety
    • /
    • v.16 no.3
    • /
    • pp.194-199
    • /
    • 2001
  • This study was designed to compare the effectiveness and applicability of the HApS$^{TM}$ (Hazard Analysis process System; HUKO, Seoul, Korea) based on Petrifilm$^{TM}$ (3M, St. Paul, MN, USA) with the AOAC (the Association of Official Analytical Chemists) standard total aerobic count (TAC) method and coliform count (CC) method for meat products. The comparisons were carried out using 230 meat samples collected from various retailers: 80 pork samples, 80 chicken samples, and 70 beef samples. In the comparison of the correlation coefficient (r) between conventional method and HApS$^{TM}$ method by a linear regression analysis, the correlation coefficients in total microorganism were 0.97767, 0.90712, and 0.95594 in pork, beef, and chicken samples, respectively. The correlation coefficients in coliform count were 0.82062, 0.94833, and 0.96839 in pork, beef and chicken samples, respectively. All the independent t-test on measurement values between conventional method and HApS$^{TM}$ method represented no significant differences in the means between two methods at the 0.05 of significance level($\alpha$=0.05). Based on the high correlation between HApS$^{TM}$ and the AOAC standard methods in the TAC and CC, it might be compatible to employ the HApS$^{TM}$ method to measure the microbial contamination in livestock products. HApS$^{TM}$ method was simpler and less time-consuming in sample preparation and procedures faster than the conventional method. These results suggested that the HApS$^{TM}$ method could be substitute for the conventional methods in the analysis of microbial contamination measurement in meat products.n meat products.

  • PDF

A Study of Antimicrobial & Antiviral Effect of Natural Product (천연물을 이용한 살균 및 살바이러스 효과에 관한 연구)

  • Ra, Jeong-Chan;Lee, Jong-Eun;Song, Dae-Sub;Kwon, Nam-Hoon;Park, Bong-Kyun;Park, Yong-Ho
    • Journal of Food Hygiene and Safety
    • /
    • v.18 no.4
    • /
    • pp.183-188
    • /
    • 2003
  • Bactericidal effect of $Green-Zone^{(TM)}$ was observed, when Staphylococcus aureus, E. coli O157:H7, Salmonella typhimurium, S. enteritidis, Listeria monocytogenes, the causative bacteria of food poisoning, Vibrio parahaemolyticus, and Shigella sonnei were treated with the diluted solution of $Green-Zone^{(TM)}$(33.3%~4.1%) for 30min at $20^{\circ}C$. All the bacteria were killed in 30 sec, when 33.3%-diluted $Green-Zone^{(TM)}$ was applied, except for S. aureus. Coronavirus, the same virus with SARS virus taxonomically, was also lilled with the 20%-diluted $Green-Zone^{(TM)}$. Canine parvovirus and Canine distermper virus were also killed even in the organic matter and hard water when treated with $Green-Zone^{(TM)}$. When applied to food such as raw fish, chilled meat, vegetables, $Green-Zone^{(TM)}$ could also decrease the number of microorganism, expecially for E. Coli. From these results, $Green-Zone^{(TM)}$ is thought to be effective for killing virus and bacteria, and also was proved to be safe when applied directrly to food.

Kim Gwangjin's Integration of Medicine and Innovation of Traditional Medicine - Centering on the principle of Up and Down in Medicine - (대구 의생 김광진의 동서의학 절충 그리고 한의학 혁신 - 『의학승강법』을 중심으로 -)

  • Oh, Chaekun
    • Journal of Korean Medical classics
    • /
    • v.29 no.2
    • /
    • pp.91-119
    • /
    • 2016
  • Objectives : In this paper, the main objective is to analyze and evaluate Kim Gwangjin(金光鎭, 1885-1940)'s academical achievements of integration of eastern with western medicine and innovation of traditional medicine(TM, 漢醫). Methods : This paper is composed of two parts. First, analyzing Kim's medical book, the principle of Up and Down in Medicine(醫學升降法) by the way of text analysis and interpretation faithfully. Second, adding historical perspectives about his achievements. Results : Kim opened a clinic and practiced TM in Daegu, a city of Youngnam(嶺南) area of Korea, in 1924, and published the book in 1936. While Kim acknowledged the scientific results by western medicine and criticized the typical explanation of five viscera or qi circuits of TM, he clarified the treatment range for TM and provided his own interpretations of pathophysiology through the ups and downs of qi, without conflicting between western medicine and TM. Moreover, he critically follows the TM discourses of the most noted practitioner, Lee Gyoojoon(李圭晙), in the Youngnam area of the time. Conclusions : In the 1930s, although western medicine has become the new core orientation and has forced out TM to the districts, within the abyss of the districts, TM still maintained its strong presence.

Shear Behavior of $Carbon/BMI({\pm}45^{\circ})_{2s}$By Acoustic Emission (음향방출을 통한 $Carbon/BMI({\pm}45^{\circ})_{2s}$의 전단 거동)

  • Lee, Taek-Su;Lee, Jong-Mun;Lee, Jae-Rak
    • Korean Journal of Materials Research
    • /
    • v.4 no.8
    • /
    • pp.888-894
    • /
    • 1994
  • In detail of fracture and mechanical properties to carbon/BMI$(\pm 45^\circ)_{2s}$ discusses by acoustic emission and tensile testing. The bismaleimide resin from Boots Technochemie Co. was toughened by TM 120 from same Co. The weight proportions of TM 120 were fixed as 0, 5, 10, 15, 20, 25phr. The 0.2phr of 1, 4-diazobicyclo-(2, 2, 2)-octane(DABC0) was used as the accelerator. The used carbon fiber was T300 from Toray Co. The optimum additional proportion of TM120 was proved as 20phr by mechanical testing and at the same time by the results of acoustic emission. toughening agent gives significant influences on the fracture phenomena and mechanical strength.

  • PDF

The Effect of Aging Treatment for Microleakage within Composite Resin Restoration (시효처리가 복합레진 수복물의 미세누출에 미치는 영향에 관한 연구)

  • Yoo, Seunghoon
    • Journal of the korean academy of Pediatric Dentistry
    • /
    • v.40 no.4
    • /
    • pp.283-295
    • /
    • 2013
  • In this study, researchers tried to find the effect, if any, of aging treatment to the specimens with three different dentin bonding agents using MicroCT. One, 5th generation - [Adper$^{TM}$ Single bond Plus] and two 6th generation [AdheSE$^{(R)}$, Adper$^{TM}$ Prompt$^{TM}$ L-Pop$^{TM}$] dentin bonding agents were used in this study. Specimens were divided into 4 groups according to aging treatment method used. Group I : control group, Group II : thermocycled between $5^{\circ}C$ and $55^{\circ}C$ for 60 seconds dwell time 5,000 times, Group III : aged as Group II and artificially brushed 20,000 times, Group IV : aged as Group III and were stored in artificial saliva for 6 months. With Single bond Plus, Group II showed more microleakage than Group I (p < 0.05). Group II and Group III showed more microleakage than Group IV (p < 0.05). There were no statistically significant differences among the groups using AdheSE$^{(R)}$ and Prompt$^{TM}$ L-Pop$^{TM}$ (p > 0.05). Among Group I, AdheSE$^{(R)}$ showed more microleakage than Single bond Plus and Prompt$^{TM}$ L-Pop$^{TM}$ (p < 0.05). Among Group II, there were no statistically significant differences (p > 0.05). Among Group III, AdheSE$^{(R)}$ showed more microleakage than Single bond Plus and Prompt$^{TM}$ L-Pop$^{TM}$ (p < 0.05). Among Group IV, AdheSE$^{(R)}$ and Prompt$^{TM}$ L-Pop$^{TM}$ showed more microleakage than Single bond Plus (p < 0.05).

Pooled Analysis of the Cow's Milk-related-Symptom-Score (CoMiSSTM) as a Predictor for Cow's Milk Related Symptoms

  • Vandenplas, Yvan;Steenhout, Philippe;Jarvi, Anette;Garreau, Anne-Sophie;Mukherjee, Rajat
    • Pediatric Gastroenterology, Hepatology & Nutrition
    • /
    • v.20 no.1
    • /
    • pp.22-26
    • /
    • 2017
  • Purpose: The diagnosis of cow's milk (CM) allergy is a challenge. The Cow's Milk-related-Symptom-Score ($CoMiSS^{TM}$) was developed to offer primary health care providers a reliable diagnostic tool for CM related symptoms. The predictive prospective value of the $CoMiSS^{TM}$ was evaluated in three clinical trials. Methods: Pooled analyses of the three studies were conducted based on regressing the results of the month-1 challenge test on the month-1 $CoMiSS^{TM}$, adjusting for baseline $CoMiSS^{TM}$ using a logistic regression model. In addition a logistic regression model was also fitted to the month-1 challenge test result with the change in $CoMiSS^{TM}$ from baseline as a predictor. Results: Results suggest that infants having a low $CoMiSS^{TM}$ (median, 5) after 1 month dietary treatment free from intact CM protein have a significant risk of having a positive challenge test (odds ratio, 0.83; 95% confidence interval, 0.75-0.93; p=0.002). Pooled data suggest that the change in $CoMiSS^{TM}$ from baseline to month-1 can predict CM related symptoms as a confirmed diagnosis according to the challenge test at month-1. However, in order to validate such a tool, infants without CM related symptoms would also need to be enrolled in a validation trial. A concern is that it may not be ethical to expose healthy infants to a therapeutic formula and a challenge test. Conclusion: Pooled data analysis emphasizes that the $CoMiSS^{TM}$ has the potential to be of interest in infants suspected to have CM-related-symptoms. A prospective validation trial is needed.

Ontology describing Process Information for Web Services Discovery (웹 서비스 발견을 위해 프로세스 정보를 기술하는 온톨로지)

  • Yu, Jeong-Youn;Lee, Kyu-Chul
    • The Journal of Society for e-Business Studies
    • /
    • v.12 no.3
    • /
    • pp.151-175
    • /
    • 2007
  • Until now, most semantic web service discovery research has been carried out using either Web Service Modeling Ontology (WSMO) or a profile of OWL-based Web Service ontology (OWL-S). However, such efforts have focused primarily on service name and input/output ontology. Thus, the internal information of a service has not been utilized, and queries regarding internal information such as 'Find book-selling services allowing payment after delivery' are not addressed. This study outlines the development of TM-S (Topic Maps for Service) ontology and TMS-QL (TM-S Query Language), two novel technologies that address the aforementioned issues in semantic web service discovery research. TM-S ontology describes the behavior of services using process information and consists of three sub-ontologies: process signature ontology, process structure ontology and process concept ontology. TMS-QL allows users to describe service discovery requests.

  • PDF