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Reproductive Performance of Dairy Buffaloes Supplemented with Varying Levels of Vitamin E
Panda, N.,Kaur, Harjit,Mohanty, T.K. Asian Australasian Association of Animal Productio 2006 Animal Bioscience Vol.19 No.1
The effect of vitamin E supplementation on plasma ${\alpha}$-tocopherol level, total antioxidant level and reproductive performance in Murrah buffaloes was studied during periparturient period. Twenty-four advance pregnant buffaloes were randomly divided into four equal groups as $T_1$, $T_2$, $T_3$ and $T_4$ and were supplemented with 0, 1,000, 1,500 and 2,000 IU of ${\alpha}$-tocopheryl acetate (Merck) from 60 days prepartum to 30 days postpartum and 0, 500, 750 and 1,000 IU from 30 to 60 days postpartum, respectively. Blood samples were collected at -60, -45, -30, -15, -7, 0, 7, 15, 30 and 60 days of parturition and were analyzed for plasma ${\alpha}$-tocopherol and total antioxidant activity (TAA). The intake of DM, CP and TDN did not vary among different groups. Plasma ${\alpha}$-tocopherol and TAA around parturition (-7 to 15 day) in $T_3$ and $T_4$ were significantly higher than the control group. There was 17% reduction in retention of fetal membranes (RFM) and metritis in $T_4$ than control. The post partum estrus interval averaged 58.00, 55.33, 51.83 and 43.00 days in $T_1$, $T_2$, $T_3$ and $T_4$ respectively. There was significant reduction in days open in both $T_3$ and $T_4$ in comparison to $T_1$ group (127,130 Vs.146). All the vitamin E supplemented groups showed reduction in days open than their previous lactation performance. Supplementation of vitamin E at $1,500IU\;d^{-1}$ from 60 day prepartum to 30 day post partum to buffaloes exhibited beneficial effect on plasma ${\alpha}$-tocopherol level and TAA around parturition and continuation of its supplementation at $1,000IU\;d^{-1}$ from 30 to 60 days of lactation improved post partum reproductive performance of buffaloes.
Panda, N.,Kim, M.,Aoki, N.,Zhou, Z.,Shimosaka, T.,Kim, Y.,Lee, S.,Kim, D. Springer Science + Business Media 2016 Accreditation and quality assurance Vol.21 No.4
<P>A validation study for primary formaldehyde gas standards was performed at three National Metrology Institutes: the Korea Research Institute of Standards and Science (KRISS), the National Metrology Institute of Japan (NMIJ) and the National Institute of Metrology of China (NIM). The studied materials had a nominal amount fraction of 2 mu mol/mol formaldehyde in nitrogen balance and were prepared in 10-L aluminum cylinders by KRISS. The impurities in the materials were analyzed using a gas chromatograph/atomic emission detector and a Fourier-transform infrared spectrometer (FTIR). The stability of the materials was assessed for 1 year by KRISS using paraformaldehyde as a source for the primary standard gas and a cavity ring-down spectrometer (CRDS) instrument as the measurement method. The amount fraction of formaldehyde in the materials decreased linearly by 0.74 % each month. The studied materials that exhibited similar linear rates of decline were distributed to the participants. After the measurement was completed by the participants, the materials were returned to KRISS and the stability analysis based on the primary standard maintained at KRISS was repeated. NMIJ analyzed the materials using paraformaldehyde as the source of the primary standard of formaldehyde and FTIR analysis, whereas NIM used trioxane as the primary standard gas source and CRDS analysis. The results of the comparison revealed good agreement between the results and were within the expanded uncertainty of 2 % although each of them used different combinations of methods in the generation of primary gas standards and measurements.</P>
T. Senthivelan,J. Kanagaraj,R. C. Panda 한국생물공학회 2016 Biotechnology and Bioprocess Engineering Vol.21 No.1
The aim of this review is to determine the trends of state-of-art of laccase sources, properties, structure and recent application of fungal laccase in various fields. Laccases are biotechnologically important multi copper proteins that have broad substrate specificity towards aromatic and non-aromatic compounds. Fungi are the major laccase producers especially ascomycetes, deuteromycetes and basidiomycetes, and laccases have an average molecular weight between 50 and 130 kDa. Fungal laccases are used in biotechnological applications for preparation of anticancerous and anti-oxidant hormonal drugs, stabilization of food products, and laccase application is also extended to preparation of biosensors, DNA labeling, immunochemical assay, bioorganic compound synthesis etc. The environmental application of laccase is for biodegradation of dyes, phenols and pesticides, and the mechanism of degradation has been briefly explained. Analysis of the biodegraded dye sample by FT-IR and Mass (ESI)-spectrum has been discussed in a detailed manner. Modeling kinetics has been discussed with respect to degradation of wastes in order to understand the factors involved in the degradation process.
Mechanical and durability properties of marine concrete using fly ash and silpozz
Jena, T.,Panda, K.C. Techno-Press 2018 Advances in concrete construction Vol.6 No.1
This article reports the utilization of fly ash (FA) waste product from industry and silpozz which is an agro-waste from agriculture as an environmental friendly material in construction industry. The evaluation of strength and durability study was observed using FA and silpozz as a partial replacement of Ordinary Portland Cement (OPC). The studied parameters are compressive strength, flexural strength, split tensile strength and bond strength as well as the durability study involves the acid soluble chloride (ASC), water soluble chloride (WSC), water absorption and sorptivity. Scanning electron microscopy (SEM) and XRD of selected samples are also done. It reveals from the test results that the deterioration factor (DF) in compressive strength is 4% at 365 days. The DF of split tensile strength and flexural strength is 0.96% and 0.6% at 90 days respectively. The minimum slip is 1mm and 1.1mm after 28 days of testing bond strength for NWC and SWC sample respectively. The percentage decrease in bond strength is 10.35% for 28 days SWC samples. The pre-cast blended concrete samples performed better to chloride diffusion. Modulus of elasticity of SWC samples are also studied.The water absorption and sorptivity tests are conducted after 28 days of curing.
THE GROWTH RATE OF RANDOM BALANCING SEQUENCE
A. Patra,T KOMATSU,G. K. Panda 장전수학회 2020 Proceedings of the Jangjeon mathematical society Vol.23 No.3
In the present paper, a random sequence is defined by the binary recurrence Zn+1 = AαZn - qZn-1, where α is a random variable which assumes the values +1 and -1 with probability 1=2 each where A is a positive integer and q is a non-zero integer. Furthermore by taking A = 6 and q = 1, the random balancing case has been defined and the remaining cases for A and q have been further tackled. Apart from that an elementary proof regarding the bounds of the expected value for the absolute value of the n-th term in the random balancing sequence has been provided. Moreover, the bounds for the variance of the absolute value of the n-th term has also been obtained. Furthermore, the growth rate of the random sequence has been graphically depicted.
Nanofluid lubrication and high pressure Raman studies of oxygen functionalized graphene nanosheets
Karuna Kara Mishra,Kalpataru Panda,Niranjan Kumar,Deepika Malpani,T.R. Ravindran,Om P. Khatri 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.61 No.-
Ultralow friction coefficient in reduced graphene oxide (rGO) nanofluid was observed at high pressure lubrication conditions. High pressure Raman spectroscopic studies of graphene oxide (GO) and rGO in a hydrostatic pressure medium in diamond anvil cell (DAC) showed an increase in G-band linewidth in GO but this value was decreased in rGO at same pressure range due to the defect relaxation in sp2 networks. Moreover, loss of recovery of G band linewidth in decompression cycles was clearly noticed in both the samples but it was significantly higher in GO due to the irreversible sp3 into sp2 planar phase.
Performance Improvement of Dual-Half-Controlled-Converter and Its Applications in Utility Rectifiers
Y. Wang,D. Panda,T. A. Lipo,D. Pan 전력전자학회 2011 ICPE(ISPE)논문집 Vol.2011 No.5
This paper presents improved control techniques for the three-phase three-wire dual-half-controller-converter (DHCC) using an interleaved pulse-width-modulation (PWM) technique. Compared with the hysteresis controller presented in earlier literatures, the proposed PWM controllers require smaller filtering elements and/or a lower sampling frequency. While the same number of active switches are used compared to a conventional voltage-source-converter (VSC), the current rating for each device in DHCC is significantly lower. The proposed system is free of shoot through and it provides system redundancy. Both simulations and experimental results are presented.
( V. Venkata Dasu ),( T. Panda ),( M. Chidambaram ) 한국미생물 · 생명공학회 2002 Journal of microbiology and biotechnology Vol.12 No.3
The Plackett-Burman experimental design was employed to evaluate the relative importance of medium constituents of each medium for enhanced griseofulvin production by Penicillium griseofulvum MTCC 1898 and Penicillium griseofulvum MTCC 2004. It was found that the medium constituents, sucrose, K2HPO4, NaNO3, and FeSO4·7H2O, significantly influenced the griseofulvin production by Penicillium griseofulvum MTCC 1898. In the case of Penicillium griseofulvum MTCC 2004, lactose, glucose, and MnSO4·H2O significantly influenced the griseofulvin production.