Papers by Dr. D. Subba Rao
HotROD: Managing grid storage with on-demand replication
2013 Ieee 29th International Conference on Data Engineering Workshops, Apr 1, 2013
Images in cardio-thoracic surgery Invasive aspergillosis of the lung with tuberculosis invading the heart—a rare presentation
Augmentation of suppression in cyclophosphamide-treated rats bearing allogeneic skin implants in the anterior chamber of the eye
Investigative Ophthalmology Amp Visual Science, Sep 1, 1985
This study shows that alloantigen presentation via the anterior chamber (AC) of the eye coupled w... more This study shows that alloantigen presentation via the anterior chamber (AC) of the eye coupled with a single high dose cyclophosphamide (CP) (100 mg/kg) treatment effectively suppresses the skin graft rejection reaction of the recipient. Lewis (Le) rats bearing allogeneic Brown Norway (BN) skin implants in the AC of the eye demonstrate a modest increase in the survival time of orthotopic BN skin grafts. A slight prolongation of the survival of orthotopic BN skin grafts was also demonstrated in nonimplant or syngeneic implant-bearing Le recipients which received a single injection of a large dose of CP. Augmentation of suppression was evident in rats which were treated with a single dose of 75 mg/kg CP but not 25 mg/kg. The augmentation of suppression was evident when CP treatment and skin grafting of the recipient occurred on either 0, 7, or 14 days postimplantation. Recipient splenectomy did not interfere with the augmentation of suppression.
Antibody and Cell-Mediated Immunity in Phytohemagglutinin-Treated Chickens
Int Arch Allergy Immunol, 1975
The effects of phytohemagglutinin (PHA) on humoral and homograft immunity in young chickens were ... more The effects of phytohemagglutinin (PHA) on humoral and homograft immunity in young chickens were studied. Intravenous (IV) injections of PHA stimulated the antibody production while intraperitoneal (IP) injections suppressed the antibody production. IP injected PHA failed to prolong the survival of the homografts. The route and time of PHA administration must be considered when evaluating the influence which PHA exerts on homograft survival and hemagglutinin production in the chiicken. The results obtained in this study suggest that there may be two different target cell lines involved in PHA's action. The reduced antibody production following IP injections of PHA may be due to its interference with the peritoneal macrophages and T cells and in the case ov IV administration PHA may be activating both macrophages and T cells. Possibly, there may be a difference in the effective PHA concentration after IP versus IV administration to account for different responses observed.
Zero Knowledge Proof in Secret Sharing Scheme Using Elliptic Curve Cryptography
Dynamic Checkpoint Data Replication Strategy in Computational Grid
Advances in Intelligent Systems and Computing, 2014
Ultrasound-Promoted Synthesis of Biologically Active α-Hydroxyphosphonates/ Hydroxyphosphinates Using 1,4-Dimethylpiperazine as a Catalyst
Phosphorus, Sulfur, and Silicon and the Related Elements, 2014
ABSTRACT A series of new α-hydroxyphosphonates/phosphinates was prepared using 1,4-dimethylpipera... more ABSTRACT A series of new α-hydroxyphosphonates/phosphinates was prepared using 1,4-dimethylpiperazine as a base catalyst under conventional as well as ultrasonic irradiation conditions by the reaction of 5-bromoindole-3-carboxaldehyde/2-nitrocinnamaldehyde with various phosphonates/phosphinates. The high yields of α-hydroxyphosphonates/hydroxyphosphinates were obtained in less reaction time under the ultrasonic irradiation method as compared with the conventional method. The synthesized compounds were screened for their in vitro and in vivo antioxidant activities, and the bio-screening data revealed that all the tested compounds exhibited good antioxidant activities. The bio-screening data revealed that compound 8e exhibited potent antioxidant activity in both in vitro and in vivo studies while the other compounds exhibited good antioxidant activity.[Supplementary materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements for the following free supplemental files: Additional text, tables and figures.]
Molecular weight determination by isothermic microdistillation
Mikrochemie Vereinigt mit Mikrochimica Acta, 1949
Microdetermination of chlorine and bromine in organic substances
Mikrochemie Vereinigt mit Mikrochimica Acta, 1953
Summary The apparatus ofZacherl andKrainick for the alkalimetric determination of chlorine and br... more Summary The apparatus ofZacherl andKrainick for the alkalimetric determination of chlorine and bromine in organic substances has been modified to extend its applicability to substances containing nitrogen and sulfur as additional elements. Determinations of the chlorine and bromine content of a number of such substances establish the usefulness and the efficacy of the modified method.
Microdetermination of aconitic acid
Mikrochimica Acta, 1954
Journal of Phycology, 1996
Production of domozc acid (DA), a neurotoxzn, by the din to vi Pseudon i t z sc h i a mu 1 ti se ... more Production of domozc acid (DA), a neurotoxzn, by the din to vi Pseudon i t z sc h i a mu 1 ti se r i es ( p rev zo usly Nitzschia pungensf: multiseries) Hasle and zts cellular chernzcal composztion were studied in phosphate-lzmited cheinohtat contznuous cultures and in subseque?1t batch cultures. Under steaclj-state chelnostat condztzons, D A production increased frow 0 . 0 1 to 0.26 pg DA.cell-"d-' as the growth rate decreased. W h e n the nutrzent supply was discoutinuecl (to produce a batch culture), D A production was eiahanced bq a factor of ca 3. D A productzon was teniporarzlj suspended upon addztioil of phosphate to the batch cultures but resumed 1 d later at a hzgher rate coincident ulith the decline of phosphate uptake. I n both steadystate contznuous culture and batch culture, more D A was produced when alkaline phosphatase actzuzty (APA) urns high The associatzon of high DA production with high leilels of APi4 and high cellular N:P ratios strong11 suggests that phosphate liinitatzon enhances D A productzon. Also, DL4 production was hzgh when other przmary metabolism (e.g. uptake of carbon, nitrogen, phosphorus and szlicon, and cell d i m i o n ) was low, but chlorophyll a and adenoszne trzphosphate were general11 hzgh. Thzs suggests that the Jyntheszs of DA requires a substantial amount of bzogenzc energ).
Identification of time series model for a fluidized bed heat exchanger system using a process computer
Computers & Chemical Engineering, 1979
Host response to tissues placed in the anterior chamber of the eye: Demonstration of migration inhibition factor and serum blocking activity
Cellular Immunology, 1977
Allograft immunity of rats to transplantation antigens was demonstrated by in vitro migration inh... more Allograft immunity of rats to transplantation antigens was demonstrated by in vitro migration inhibition procedures. Spleen cell suspensions from rats sensitize.
Comparative analysis of calcium gluconate and sodium gluconate techniques for the production of gluconic acid by Aspergillus niger
Bioprocess Biosyst Eng, 1993
Sodium gluconate and calcium gluconate methods are important techniques available for gluconic ac... more Sodium gluconate and calcium gluconate methods are important techniques available for gluconic acid fermentation. The comparative analysis of these fermentations has been addressed using Aspergillus niger. The techniques are equally influenced by the spores age in slant growth, inoculum level in germination and production media, different levels of Fe, Cu, Zn and Mn. Sodium gluconate method is promising with respect
Iee Proceedings H Microwaves Antennas and Propagation, Apr 1, 1986
A simple moment solution is given for the problem of electromagnetic scattering from multiple con... more A simple moment solution is given for the problem of electromagnetic scattering from multiple conducting and lossy dielectric cylinders of arbitrary cross-section. The conductors may be of the form of strips and the dielectrics may be in the form of shells. The system is assumed to be excited by a plane wave polarised transverse magnetic to the axis of the cylinders. The equivalence principle is used to replace the conductors by surface electric currents and the dielectrics by equivalent surface electric and magnetic currents. Three coupled integral equations are obtained by using the condition on the tangential component of the electric field produced by these surface currents. The method of moment is used to solve the integral equations. A point matching technique is used with pulse expansion functions. Sample numerical results such as the induced currents on the conductors, the total near field, the scattered far field and the radar cross-section are presented. The agreement with available published data is excellent.
Stability Equation for Breakwater Sheltered by a Seaward Submerged Reef
ISH Journal of Hydraulic Engineering, 2007
ABSTRACT
Concrete Cubes as Armour Unit—An Experimental Study for Berm Breakwater
ISH Journal of Hydraulic Engineering, 2011
Berm breakwater consists of a wide berm at or around the water level and has an armour layer, who... more Berm breakwater consists of a wide berm at or around the water level and has an armour layer, whose shape changes in response to wave action yielding a stable profile. In the present study the influence of wave height, wave period and berm width on the stability of the breakwater as well as on the wave runup and wave rundown
Theoretical and Applied Mechanics, 2013
The flow and heat transfer of Casson fluid from a permeable isothermal sphere in the presence of ... more The flow and heat transfer of Casson fluid from a permeable isothermal sphere in the presence of slip condition in a non-Darcy porous medium is analyzed. The sphere surface is maintained at a constant temperature. The boundary layer conservation equations, which are parabolic in nature, are normalized into non-similar form and then solved numerically with the well-tested, efficient, implicit, stable Keller-box finite-difference scheme. Increasing the velocity slip parameter is found to decrease the velocity and boundary layer thickness and increases the temperature and the boundary layer thickness. The velocity decreases with the increase the non-Darcy parameter and is found to increase the temperature. The velocity increases with the increase the Casson fluid parameter and is found to decrease the temperature. The Skin-friction coefficient and the local Nusselt number is found to decrease with the increase in velocity and thermal slip parameters respectively.
Effect of ring promoter on ionic mass transfer in a fluidized bed
Journal of Chemical Technology & Biotechnology, 2003
... Indian J Technol 24: 309316 (1986). 18 Ravi T, Srinivas Rao B, Gopala Krishna P andVenkatesw... more ... Indian J Technol 24: 309316 (1986). 18 Ravi T, Srinivas Rao B, Gopala Krishna P andVenkateswarlu P, Ionic mass transfer studies in fluidized beds with coaxially placed discs on a rod as internal. Chem Eng and Proc 35: 187193 (1996). ...
Kinetics of Absorption of Nitric Oxide in Hydrogen Peroxide Solutions
Journal of Chemical Engineering of Japan, 1979
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Papers by Dr. D. Subba Rao