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Breeding of Productive Bivoltine Hybrid, CSR16 x CSR17 of Silkworm Bombyx mori L.
N. Mal Reddy,G.V. Kalpana,S. B. Dandin,R. K. Datta,H. K. Basavaraja,N. Suresh Kumar,P. G. Joge 한국잠사학회 2004 International Journal of Industrial Entomology Vol.8 No.2
The breeding work was initiated by utilizing two Japanese hybrids namely C135 ´ N134 and N137 ´ C146 along with two evolved Indian breeds, J14 and A24. The breed CSR16 which is characterized with marked larvae and white dumbbell cocoons was evolved from the Japanese hybrid C135 ´ N134 by crossing with J14, while the breed CSR17 which is characterized with plain larvae and white oval cocoons was evolved from the Japanese hybrid N137 ´ C146 by crossing with A24. The hybrid of these evolved breeds i.e., CSR16 ´ CSR17 has shown superior over control hybrid KA ´ NB4D2 and on par with the ruling hybrid of CSR2 ´ CSR4. The hybrid CSR16 ´ CSR17 was authorized during 1999 by Central Silk Board, Bangalore, Government of India for commercial exploitation during favourable months based on national level race authorization test.
Breeding of Productive Bivoltine Hybrid, CSR16×CSR17 of Silkworm Bombyx mori L.
( N. Mal Reddy ),( H. K. Basavaraja ),( N. Suresh Kumar ),( P. G. Joge ),( G. V. Kalpana ),( S. B. Dandin ),( R. K. Datta ) 한국잠사학회 2007 International Journal of Industrial Entomology Vol.8 No.2
The breeding work was initiated by utilizing two Japanese hybrids namely C135×N134 and N137×C146 along with two evolved Indian breeds, J14 and A24. The breed CSR16 which is characterized with marked larvae and white dumbbell cocoons was evolved from the Japanese hybrid C135×N134 by crossing with J14, while the breed CSR17 which is characterized with plain larvae and white oval cocoons was evolved from the Japanese hybrid N137×C146 by crossing with A24. The hybrid of these evolved breeds i.e., CSR16×CSR17 has shown superior over control hybrid KA×NB4D2 and on par with the ruling hybrid of CSR2×CSR4. The hybrid CSR16×CSR17 was authorized during 1999 by Central Silk Board, Bangalore, Government of India for commercial exploitation during favourable months based on national level race authorization test.
드라이 드릴 가공에서 다양한 코팅 드릴공구의 마모 및 가공 성능 개선에 대한 연구
N. Suresh Kumar Reddy,전강민,양민양 한국공작기계학회 2008 한국공작기계학회 춘계학술대회논문집 Vol.2008 No.-
Drilling is one of the most commonly used machining processes in various industries such as automotive, aircraft and aerospace, die and molds, home appliance, medical and electronic equipment industries. In recent years, the improvement in the coatings of carbide tools and in the chemical and mechanical properties of tool materials has caused the increase of tool working life in machining processes. This fact has allowed the use of so called dry machining technology. The main objective of this work is to compare the performance of various coated carbide drills in dry drilling of SCM 440 (medium-carbon chrome-molybdenum steel) material based on the combined study of the evolution of tool wear and quality of machined holes. Tool wear was measured with optical microscope and quality of holes was estimated in terms of geometrical accuracy. Taking into consideration of all the conclusions reached m this work, the most important one is depending on the application of the machined component, the state of the work-piece could be more restrictive than the tool wear, and the end of tool life should be established from the point of view of controlled damage in a work-piece.
Breeding of Productive Bivoltine Hybrid, CSR16${\times}$CSR17 of Silkworm Bombyx mori L.
Reddy, N.Mal,Basavaraja, H.K.,Kumar, N.Suresh,Joge, P.G.,Kalpana, G.V.,Dandin, S.B.,Datta, R.K. Korean Society of Sericultural Science 2004 International Journal of Industrial Entomology Vol.8 No.2
The breeding work was initiated by utilizing two Japanese hybrids namely C135${\times}$N134 and N137${\times}$C146 along with two evolved Indian breeds, J14 and A24. The breed CSR16 which is characterized with marked larvae and white dumbbell cocoons was evolved from the Japanese hybrid C135${\times}$N134 by crossing with J14, while the breed CSR17 which is characterized with plain larvae and white oval cocoons was evolved from the Japanese hybrid N137${\times}$C146 by crossing with A24. The hybrid of these evolved breeds i.e., CSR16${\times}$CSR17 has shown superior over control hybrid $KA{\times}{NB_4}{D_2}$ and on par with the ruling hybrid of CSR2${\times}$CSR4. The hybrid CSR16${\times}$CSR17 was authorized during 1999 by Central Silk Board, Bangalore, Government of India for commercial exploitation during favourable months based on national level race authorization test.
Kumar, N.Suresh,Basavaraja, H.K.,Reddy, N.Mal,Dandin, S.B. Korean Society of Sericultural Science 2003 International Journal of Industrial Entomology Vol.6 No.2
The hot climatic conditions prevailing particularly in summer are not conducive to rear these high yielding bivoltine hybrids throughout the year, In order to select efficiently the breeds with high temperature tolerance, it is very important to analyze critically the impact of high temperature on many silk yielding attributes of silkworm races. Keeping the above in view, the present study was undertaken to determine the effect of high temperature $(36 {\pm} 1^{\circ}C)$ and high humidity $(80 {\pm} 5% Relative Humidity)$ on the rearing performance of pure races, foundation crosses, single hybrids and double hybrids of bivoltine silkworm, Bombyx mori L. The robust bivoltine breeds, CSR18, CSR19, 8HT and 5HT, eight foundation crosses, eight single hybrids and eight double hybrids involving these breeds were chosen as materials in this study.
N Kritheka,R Sambath Kumar,S Suresh Kumar,N Venkateswara Murthy,R Shanmuga Sundram,P Perumal 경희대학교 융합한의과학연구소 2008 Oriental Pharmacy and Experimental Medicine Vol.8 No.4
The aim of the present study is to investigate the anti-inflammatory and antimicrobial activity of petroleum ether and ethanol extracts of Scutia myrtina (Family: Rhamnaceae). In antiinflammatory activity carrageenan and histamine induced paw oedema and cotton pellet induced granuloma for acute and chronic inflammatory models were studied in Wister albino rats. Based on the results of the present study it can be concluded that petroleum ether and ethanol extract of Scutia myrtina at 400 mg/kg has potential anti-inflammatory effect and they act in a dose dependent manner. Both extracts of Scutia myrtina showed antimicrobial activity against all bacterial and fungal strains tested at the concentration of 100 μg/ml. From the result, it can be concluded that the Scutia myrtina contain antibacterial and antifungal principle. Further more, besides the confirmation of the popular use; the obtained results demonstrate this herbal drug to represent a new source of antimicrobial and anti-inflammatory agent. The aim of the present study is to investigate the anti-inflammatory and antimicrobial activity of petroleum ether and ethanol extracts of Scutia myrtina (Family: Rhamnaceae). In antiinflammatory activity carrageenan and histamine induced paw oedema and cotton pellet induced granuloma for acute and chronic inflammatory models were studied in Wister albino rats. Based on the results of the present study it can be concluded that petroleum ether and ethanol extract of Scutia myrtina at 400 mg/kg has potential anti-inflammatory effect and they act in a dose dependent manner. Both extracts of Scutia myrtina showed antimicrobial activity against all bacterial and fungal strains tested at the concentration of 100 μg/ml. From the result, it can be concluded that the Scutia myrtina contain antibacterial and antifungal principle. Further more, besides the confirmation of the popular use; the obtained results demonstrate this herbal drug to represent a new source of antimicrobial and anti-inflammatory agent.
Kumar, N.Suresh,Basavaraja, H.K.,Kumar, C.M.Kishor,Reddy, N.Mal,Datta, R.K. Korean Society of Sericultural Science 2002 International Journal of Industrial Entomology Vol.5 No.2
Earlier breeding experiments undertaken at Central Sericultural Research and Training Institute, Mysore, India since a decade had resulted in the development of many productive and qualitatively superior bivoltine hybrids. However, the hot climatic conditions of tropics prevailing particularly in summer are not conducive to rear these high yielding bivoltine hybrids. This has necessitated breeding of compatible bivoltine hybrids for year-round rearing. Accordingly, the Japanese hybrid, B2Ol ${\times}$ BCS12 which was found to be tolerant to high temperature was used as breeding resource material. Following hybridization and selection rearing of silkworms was taken up in SERICATRON (Environmental chamber with precise and automatic control facilities for uniform maintenance of temperature and humidity) at high temperature of $36{\times}1^{\circ}C$ and 85${\times}$5% RH in fifth instar and the control batches at $25{\times}1^{\circ}C$ and 65{\times}$5% RH. Directional selection was resorted to the batches reared at 36$\pm$1$^{\circ}C$ till F$_{5}$ keeping pupation rate as important selection criteria. From $F_{2}% onwards the experiment was modified in such a way as to conduct normal rearing every alternate generation to regain the lost vitality due to continuous exposure to high temperature and high humidity stress. At $F_{2}$ , Oval and dumb-bell cocoons were separated out and designated as CSR18 and CSR19, respectively. By utilizing these lines at $F_{12}$, the hybrid CSR18$\times$CSR19 was prepared and studied for the thermotolerance by subjecting to stress condition at high temperature of 36$\pm$1$^{\circ}C$ and 85$\pm$5% RH in fifth instar and the control batches at $25{\times}1^{\circ}C$ and 65${\times}$5% RH. The better performance of CSR18${\times}$CSR19 (survival > 88%) at $36{\times}1^{\circ}C$ clearly indicates the general superiority of CSR18${\times}$CSR19 with regard to high temperature tolerance over the productive hybrids and CSR18$\times$CSR19 can perform well in varied agro-climatic conditions of the tropics with optimum qualitative and quantitative characteristics.s.
Experimental Study to Improve Performance of Turning AISI1040 Steel using Solid Lubricant
N. Suresh Kumar Reddy,Kwang-Sup Shin(신광섭),Min-Yang Yang(양민양) 한국생산제조학회 2007 한국공작기계학회 춘계학술대회논문집 Vol.2007 No.-
It is generally considered that the heat produced during the machining process is critical in terms of workpiece quality. So, effective control of heat generated at the cutting zone is essential to ensure the workpiece quality in machining, which can be achieved by using coolants. As the coolants are relatively inaccessible to the machining zone due to the typical nature of the process, it has been attempted to study the performance of machining of AISI 1040 steel using molybdenum disulphide as a solid lubricant in the present work. The experimental set up (solid lubricant powder feeder) for solid lubricant assisted machining was designed and built. The aim of the study is to investigate the effect of molybdenum disulphide as solid lubricant in the zone of machining. In the first stage of this work, experiments have been carried out to investigate the role of solid lubricant such as molybdenum disulphide on surface finish and chip thickness of the product in machining an AISI 1040 steel. In the second stage, a comparative performance analysis of molybdenum disulphide assisted machining with wet machining has been conducted. Results indicate that there is a considerable improvement in the performance of machining AISI 1040 steel using molybdenum disulphide as a solid lubricant when compared with wet machining in terms of surface finish and chip thickness.