Line X Tester Analysis for Economic Characters in the Bivoltine Silkworm, Bombyx mori L .

Begum, Naseema,Bhargava, A. S. K.,Ahsan, M. M.,Datta, R. K.,Rao, D. Raghavendra 한국잠사학회 1997 한국잠사곤충학회지 Vol.39 No.2

In a line X tester crossing programme (24 lines and 2 testers) the general combining ability(GCA) and specinc combining ability (SCA) effects were analyzed for five economic characters in the bivoltine silkworm,Bombyx mori L. The results showed desired GCA effects in 934D1(9500), 934B (9789) and 934A1(9855) for cocoon yield per 10,000 larvae brushed by number. Likewise, the lines found to be superior based on GCA effects for other characters were as follows; 931D (14.040 Kgs), 935E (17.023 Kga.), 934D1 (15.643 Kgs.) and 934B (15.687 Kgs.) for cocoon yield by weight: 931D (1.717 g) and 930E (1.796 g) for single cocoon weight; 932B(0.330 g) for single shell weight; 932B (18.7%), 933A (18.86%) and 935A (19.89%) for shell ratio. SCA effects showed the superiority of 932D X KA (9822 cocoon yield per 10,000 larvae brushed by number); 932A X NB4D2 (16.933 Kgs. cocoon yield per 10000 larvae brushed by weight); 931C X KA (1.911 g single cocoon weight); 934 X NB4D2 (0.371 g single shell weight and 21.0% shell ratio). The analysis indicated non-additive gene action for all the five characters.

Coronary Artery Dose-Volume Parameters Predict Risk of Calcification After Radiation Therapy

Sarah A. Milgrom,Bibin Varghese,Gregory W. Gladish,Andrew D. Choi,Wenli Dong,Zarana S. Patel,Caroline C. Chung,Arvind Rao,Chelsea C. Pinnix,Jillian R. Gunther,Bouthaina S. Dabaja,Steven H. Lin,Karen E 한국심초음파학회 2019 Journal of Cardiovascular Imaging (J Cardiovasc Im Vol.27 No.4

BACKGROUND: Radiation exposure increases the risk of coronary artery disease (CAD). We explored the association of CAD with coronary artery dose-volume parameters in patients treated with 3D-planned radiation therapy (RT). METHODS: Patients who received thoracic RT and were evaluated by cardiac computed tomography ≥ 1 year later were included. Demographic data and cardiac risk factors were retrospectively collected. Dosimetric data (mean heart dose, dmax, dmean, V50 - V5) were collected for the whole heart and for each coronary artery. A coronary artery calcium (CAC) Agatston score was calculated on a per-coronary basis and as a total score. Multivariable generalized linear mixed models were generated. The predicted probabilities were used for receiver operating characteristic analyses. RESULTS: Twenty patients with a median age of 53 years at the time of RT were included. Nine patients (45%) had ≥ 3/6 conventional cardiac risk factors. Patients received RT for breast cancer (10, 50%), lung cancer (6, 30%), or lymphoma/myeloma (4, 20%) with a median dose of 60 Gy. CAC scans were performed a median of 32 months after RT. CAC score was significantly associated with radiation dose and presence of diabetes. In a multivariable model adjusted for diabetes, segmental coronary artery dosimetric parameters (dmax, dmean, V50, V40 V30, V20, V10, and V5) were significantly associated with CAC score > 0. V50 had the highest area under the ROC curve (0.89, 95% confidence interval, 0.80-0.97). CONCLUSIONS: Coronary artery radiation exposure is strongly correlated with subsequent segmental CAC score. Coronary calcification may occur soon after RT and in individuals with conventional cardiac risk factors.

Single-step hydrothermally grown nanosheet-assembled tungsten oxide thin films for sensitive and selective NO2 gas detection

Harale, N. S.,Dalavi, D. S.,Mali, Sawanta S.,Tarwal, N. L.,Vanalakar, S. A.,Rao, V. K.,Hong, Chang Kook,Kim, J. H.,Patil, P. S. Springer-Verlag 2018 JOURNAL OF MATERIALS SCIENCE - Vol.53 No.8

<P>A well-organized tungsten oxide (WO3) nanosheet-assembled microbricks have been synthesized by the hydrothermal route at 180 A degrees C with the help of peroxy-tungstic acid sol. The as-synthesized thin films have been characterized for structural, morphological and compositional studies by using X-ray diffraction, scanning electron microscopy and FT-Raman spectroscopy. The deposited WO3 thin films have been found to be polycrystalline in nature with the monoclinic crystal structure. The SEM micrographs revealed the formation of microbrick-like structure which was made up of two-dimensional (2D) nanosheets. The 2D nanosheets act as a nanobuilding blocks for the formation of microbricks. The gas-sensing performance of WO3 thin films was carried out for different gases, and it is observed that sensor exhibited maximum gas response towards Nitrogen dioxide (NO2) gas which is seven times higher than that of other gases at an operating temperature of 300 A degrees C over the concentration range of 5-100 ppm. WO3 microbricks sensor showed higher response about 11.5 and fast response-recovery characteristics towards NO2 gas, especially a much quicker gas response time of 16 s and recovery time of 260 s at 100 ppm.</P>

Evaluation of Microstructure, Hardness and Mechanical Properties of Friction Stir Welded Al–Ce–Si–Mg Aluminium Alloy

Austine D. D’Souza,Shrikantha S. Rao,Mervin A. Herbert 대한금속·재료학회 2020 METALS AND MATERIALS International Vol.26 No.9

A vast majority of the research on friction stir welding(FSW) is mainly focused on welding of aluminium alloys. The researchstudies in this paper are based on one such alloy known as Al–Ce–Si–Mg aluminium alloy, of which, the microstructure andother mechanical properties of the friction stir welded joints are yet to be studied. The plates of Al–Ce–Si–Mg aluminiumalloy were friction stir welded using a non consumable, rotating tool with triangular profile pin and circular shoulder, withdifferent combinations of tool rotation speeds and weld speeds. The microstructure, hardness and mechanical properties ofthe weld were analyzed. The microstructure of the weld zones revealed that, the average grain size at the bottom of the NuggetZone (NZ) is 5 ± 0.12 μm and gradually increases to 15 ± 0.23 μm at the top of the NZ. In the TMAZ the grain size is20 ± 0.14 μm and is bigger compared to the NZ. In the HAZ, the grain size is around 37 ± 0.21 μm and is bigger than that inthe TMAZ. The maximum Vickers hardness value at the NZ center is 231.9 ± 2 Hv, and uniformly reduces to 100 ± 2.4 Hvin the TMAZ and 65 ± 1.3 Hv in the HAZ and then increases to 98 ± 1 Hv in the base material (BM). The maximum ultimatetensile strength (UTS) of FSW joint was found to be around 102.55 ± 3 MPa with elongation at fracture of 2.5%. The BMUTS was 154 ± 4.5 MPa. For a tool rotation speed of 800RPM and a weld speed of 20 mm/min a maximum joint efficiencyof 67%. was obtained. Hence these were chosen as the optimum process parameters to join the alloy Al–Ce–Si–Mg by FSW.

Cryopreservation of Mulberry Germplasm Core Collection and Assessment of Genetic Stability through ISSR Markers

Rao, A. Ananda,Chaudhury, Rekha,Kumar, Suseel,Velu, D.,Saraswat, R.P.,Kamble, C.K. Korean Society of Sericultural Science 2007 International Journal of Industrial Entomology Vol.15 No.1

A simple and reliable cryo technique using desiccation and slow freezing of winter dormant buds was employed for 238 core collection of mulberry germplasm collected from diverse geographical regions and maintained under tropical conditions in the ex situ field gene bank to develop long-term biodiversity conservation for ensuring sustainable utilization of these valuable resources. Desiccation and freezing tolerance of bud grafts and excised shoot apices in the axillary buds of different Morus species under in vivo and in vitro condition indicated species-specific variation and most of the wild Morus species were found sensitive. In vitro regeneration and cryopreservation($-196^{\circ}C$) protocols using differentiated bud meristem like axillary winter dormant buds were worked out for a wide range of Morus species, land races, wild and cultivated varieties. Successful cryopreservation of mulberry winter dormant buds of different accessions belonging to M. indica, M. alba, M. latifolia, M. cathayana, M. laevigata, M. nigra, M. australis, M. bombycis, M. sinensis, M multicaulis and M. rotundiloba was achieved. Among wild species Morus tiliaefolia, and M. serrata showed moderate recovery after cryopreservation. Survival rates did not alter after three years of cryopreservation of different Morus species. ISSR markers were used to ascertain the genetic stability of cryopreserved mulberry, which showed no difference detected among the plantlets regenerated from frozen apices in comparison to the non-frozen material.

A hydrothermal reaction combined with a post anion-exchange reaction of hierarchically nanostructured NiCo2S4 for high-performance QDSSCs and supercapacitors

Rao, S. S.,Durga, I.,Kundakarla, N.,Punnoose, D.,Gopi, C. V.,Reddy, A.,Jagadeesh, M.,Kim, H. J. Royal Society of Chemistry 2017 New journal of chemistry Vol.41 No.18

The influence of in situ deposition techniques on PbS seeded CdS/CdSe for enhancing the photovoltaic performance of quantum dot sensitized solar cells

Punnoose, D.,Suh, S.M.,Kim, B.J.,kim, S.k.,Kumar, Ch.S.S.P.,Rao, S.S.,Thulasi-Varma, C.V.,Reddy, A.E.,Chung, S.H.,Kim, H.J. Elsevier Sequoia 2016 Journal of Electroanalytical Chemistry Vol.773 No.-

<P>The deposition techniques of quantum dots (QDs) have great influence on the photovoltaic performances of quantum dot sensitised solar cells (QDSSCs). In this study, we report CdS/CdSe sensitised TiO2 solar cells focussing on the influence of two commonly used in situ QD deposition techniques (SILAR: successive ionic layer adsorption and reaction and CBD: chemical bath deposition). In addition to this, the QDSSC performance is enhanced due to better light harvesting capability of PbS quantum dots and makes large accumulation of photo-injected electrons in the conduction band of TiO2. When compared to power conversion efficiency (PCE) of 4.58% was obtained for PbS/CBD-CdS/CBD-CdSe cells when compared to PbS/SILAR-CdS/SILAR-CdSe. With chemical bath deposition, we achieved high surface coverage of QDs, which contributes to the increase in photocurrent,open circuit voltage and fill factor. Impedance spectroscopy revealed that the PbS/CBD-CdS/CBD-CdSe reduces recombination and increases charge collection efficiency and a long electron lifetime was achieved. To associate the assembling of QDs with the performance of QDSSCs a methodical characterization of morphology, optical and electro-chemical properties and its stability has been studied. We achieved PbS seeded CBD highlighting its robust consequences for the performance of QDSSCs. (C) 2016 Elsevier B.V. All rights reserved.</P>

Higher concentrations of folic acid reduced the dietary requirements of supplemental methionine for commercial broilers

Rama Rao S. V.,Raju M.V.L.N.,Nagalakshm D.,Srilatha T.,Paul S.S.,Prakash B,Kannan A 아세아·태평양축산학회 2024 Animal Bioscience Vol.37 No.5

Objective: An experiment was conducted to study the effect of supplementing DL methionine (DL Met) at graded concentrations on performance, carcass variables, immune responses and antioxidant variables in broiler chicken fed folic acid (FA) fortified (4 mg/kg) lowmethionine diet. Methods: A basal diet (BD) without supplemental DL Met, but with higher level (4 mg/kg) of FA and a control diet (CD) with the recommended concentration of methionine (Met) were prepared. The BD was supplemented with DL Met at graded concentrations (0%, 10%, 20%, 30%, 40%, and 50% supplemental DL Met of CD). Each diet was fed ad libitum to 10 replicates of 5 broiler male chicks in each from 1 to 42 d of age. Results: Body weight gain (BWG) reduced, and feed conversion ratio (FCR) increased in broilers fed low-Met BD. At 30% and 20% inclusion of DL met, the BWG and FCR, respectively were similar to those fed the CD. Similarly, supplementation of 10% DL Met to the BD significantly increased ready to cook meat yield and breast meat weight, which were similar to those of the CD fed broilers. Lipid peroxidation reduced, the activity of antioxidant enzymes (GSHPx and GSHRx) in serum increased and lymphocyte proliferation increased with increased supplemental DL Met level in the BD. The concentrations of total protein and albumin in serum increased with DL Met supplementation to the BD. Conclusion: Based on the data, it can be concluded that supplemental Met can be reduced to less than 50% in broiler chicken diets (4.40, 3.94, and 3.39 g/kg, respectively in pre-starter, starter and finisher phases) containing 4 mg/kg FA.

EPR and PL studies on UVB-emitting gadolinium-doped SrAl₁₂O₁₉ phosphors

Singh, Vijay,Sivaramaiah, G.,Singh, N.,Rao, J.L.,Singh, Pramod K.,Pathak, M.S.,Hakeem, D.A. Elsevier 2018 Optik Vol.158 No.-

<P><B>Abstract</B></P> <P>A series of UV-emitting Gd-doped SrAl<SUB>12</SUB>O<SUB>19</SUB> phosphors were prepared using a low-temperature solution-combustion method for which urea served as the fuel. These phosphors were characterized using X-ray diffraction (XRD), electron paramagnetic resonance (EPR), and photoluminescence (PL) studies. In phosphors with low dopant concentrations, the EPR spectrum exhibited resonance signals at the effective g factors of 2.41, 2.17, 1.99, 1.88, and 1.66. With the increasing of the concentrations, the resonance signals are evident at the effective g factors of 2.39, 2.18, 1.95, and 1.65. The PL studies of the samples showed a dominant emission peak at 312 nm that corresponds to the <SUP>6</SUP>P<SUB>7/2</SUB> → <SUP>8</SUP>S<SUB>7/2</SUB> transitions of the Gd<SUP>3+</SUP> ions.</P>

Utilizing Additive Friction Stir Processing to Fabricate B4C Reinforced Ti–6Al–4V Matrix Surface Composite: Microstructure Refinement and Enhancement in Mechanical Properties

H. A. Deore,J. Mishra,A. G. Rao,B. D. Bhanushali,V. D. Hiwarkar 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.1

Ti–6Al–4V/B4C surface composite, having uniform dispersion of reinforcement, was successfully fabricated via additive friction stir processing (AFSP) technique. The chemical reaction between B4C particles and Ti matrix resulted in the formationof intermetallics like TiBX and TiC. Optical microscopy, scanning electron microscopy, electron backscattered difractionand X-ray difraction were carried out to investigate the infuence of FSP, B4C reinforcement and post-FSP heat treatment onmicrostructure evolution. Microhardness, Charpy impact and pin on disc wear tests were performed to examine mechanicaland wear properties. Fully β transformed microstructure composed of basket-weave lamellar α/β together with the needle-likeultrafne martensite α′ was observed in FSPed stir zone. B4C particles brought about additional microstructure refnementby pinning prior β grain boundaries (Zener pinning) and enhancing the nucleation rate (particle stimulated nucleation). Surface composites fabricated via AFSP exhibited higher hardness, wear-resistance and impact toughness compared to thebase metal Ti–6Al–4V and FSPed Ti–6Al–4V.