R. Bhat

Publication List Details

Period

1979 - 9999

Number

57

Co-Authors

OPTICAL PROPERTIES OF ALUMINUM GALLIUM ARSENIDE. (9999)

ASPNES ,D. E., KELSO ,S. M., LOGAN ,R. A., BHAT,R.

FIRST AND LAST AUTHORS WITH BELL COMMUNICATIONS RES. INC., MURRAY HILL, NEW JERSEY. SECOND AUTHOR WITH XEROX PALO ALTO RES. CENT., CALIFORNIA.

Quantum-Confined Stark Effect of InGaAsP Quantum Wells Grown on (110) InP Substrates, (9999)

Oe, K., Wakita, K., Bhat, R., Koza, M. A.

Quantum well structures show interesting optical properties associated with their remarkable exciton absorption resonances. In the quantum-confined Stark effect (QCSE), electric fields applied...

MGS and Odyssey - relay satellites for the MER mission (2006)

Esposito, Pasquale B., Bhat, R., Demcak, S., Ardakab, S., Breeden, J., Helfrich, C., ...

This paper will present the navigation plan, trajectory propagation accuracy and maneuver execution for the successful MGS and Odyssey over-flights of both the MER rovers.

MGS and Odyssey - relay satellites for the MER mission (2006)

Esposito, Pasquale B., Bhat, R., Demeak, S., Ardalan, S., Breeden, J., Helfrich, C., ...

Both Mars Global Surveyor (MGS) and Odyssey are currently in low altitude, nearly circular and highly inclined orbits about Mars. Thus, they are available adn compartible to serve as relay satellites...

Using Anomalous Along-Track Forces for Topex/Poseidon Ground Track Control (2004)

Shapiro, B., Bhat, R., Frauenholz, R.

The TOPES/POSEIDON satellite is maintained in a nearly circular, frozen orbit at an altitude of =1336 km. and an inclination of i = 66.4, which provides an exact repeat ground track every 127...

Mars Orbit Rendezvous Strategy for the Mars 2003/2005 Sample Return Mission (2004)

D'Amario, L., Bollman, W., Lee, W., Roncoli, R., Smith, J., Bhat, R., ...

The baseline scenario for the Mars 2003/2005 Sample Return Mission utilizes Mars orbit rendezvous to retrieve two orbiting sample canisters containing Martian surface material.

TOPEX/POSEIDON Orbit Maintenance for the First Five Years (2004)

Bhat, R., Shapiro, B., Frauenholz, R., Leavitt, R.

The TOPEX/POSEIDON orbit maintenance strategy was changed following launch to include the effects of observed unmodeled, and hence anomalous, along-track accelerations.

Navigating CONTOUR using the noncoherent transceiver technique (2004)

Carranza, E., Taylor, A. H., Williams, B. G., Lewis, G. D., Han, D., Helfrich, C. E., ...

The objective of the CONTOUR mission was to conduct scientific fly-by studies of comets, Encke and Schwassmann-Wachmann 3, with the option of changing targets in-flight or visiting anadditional...

Navigating CONTOUR using the noncoherent transceiver technique (2004)

Carranza, E., Taylor, A. H., Williams, B. G., Han, D., Helfrich, C. E., Bhat, R., ...

The successful navigation of the Comet Nucleus Tour spacecraft was performed at JPL and was conducted with the use of the new noncoherent transceiver technique developed by the Applied Physics...

GSK-3 beta inhibition reverses axonal transport defects and behavioural phenotypes in Drosophila (2004)

Mudher, A., Shepherd, D., Newman, T.A., Mildren, P., Jukes, J.P., Squire, A., ...

The tauopathies are a group of disorders characterised by aggregation of the microtubule-associated protein tau and include Alzheimer's disease (AD) and the fronto-temporal dementias (FTD). We have...

GSK-3b inhibition reverses axonal transport defects and behavioural phenotypes in Drosophila (2004)

Mudher, A., Shepherd, D., Newman, T.A., Mildren, P., Jukes, J.P., Squire, A., ...

The tauopathies are a group of disorders characterised by aggregation of the microtubuleassociated protein tau and include Alzheimer’s disease (AD) and the fronto-temporal dementias (FTD). We have...

GSK-3 beta inhibition reverses axonal transport defects and behavioural phenotypes in Drosophila (2004)

Mudher, A., Shepherd, D., Newman, T.A., Mildren, P., Jukes, J.P., Squire, A., ...

The tauopathies are a group of disorders characterised by aggregation of the microtubule-associated protein tau and include Alzheimer's disease (AD) and the fronto-temporal dementias (FTD). We have...

Surface recombination measurements on III–V candidate materials for nanostructure light-emitting diodes (2000)

Boroditsky, M., Gontijo, I., Jackson, M., Vrijen, R., Yablonovitch, E., Krauss, T., ...

Surface recombination is an important characteristic of an optoelectronic material. Although surface recombination is a limiting factor for very small devices it has not been studied intensively. We...

Alumina Ceramics by Sol-Gel Technique. (1998)

Ramanathan, S., Bhat, R., Upadhyaya, D. D., Roy, S. K.

The processing of alumina ceramics using the sol-gel technique was investigated. Alumina sols were prepared by precipitation-peptization of aluminium hydroxide obtained from aluminium nitrate and...

Multiwavelength Distributed Feed Back Laser Array Transmitters for Optical Network Technology Consortium Reconfigurable Optical Network Testbed. (1997)

Lee, T. P., Zah, C. E., Bhat, R., Young, W. C., Pathak, B.

We discuss the design, fabrication, and performance of multiwavelength laser array transmitters that have been used in the reconfigurable optical network testbed for the Optical Network Technology...

Low threshold, room temperature pulsed operation of 1.5 μm vertical-cavity surface-emitting lasers with an optimized multi-quantum well active layer (1994)

Uomi, K., Yoo, S. J. B., Scherer, A., Bhat, R., Andreadakis, N. C., Zah, C. E., ...

Room temperature, pulsed operation of 1.5 μm vertical-cavity surface-emitting laser is demonstrated by the optimization of an InGaAs/InGaAsP multi-quantum well active layer, especially the number of...

Simultaneous multiple wavelength operation of a multistripe array grating integrated cavity laser (1993)

Poguntke, K. R., Soole, J. B. D., Scherer, A., LeBlanc, H. P., Caneau, C., Bhat, R., ...

Simultaneous multiple-wavelength operation of a multistripe array grating integrated cavity laser is reported. We demonstrate simultaneous lasing from a single output port at 2, 3, and 4 discrete...

Wavelength-selectable laser emission from a multistripe array grating integrated cavity laser (1992)

Soole, J. B. D., Poguntke, K. R., Scherer, A., LeBlanc, H. P., Chang-Hasnain, C., Hayes, J. R., ...

We report laser operation of a multistripe array grating integrated cavity (MAGIC) laser in which the wavelength of the emission from a single output stripe is chosen by selectively injection pumping...

Multistripe Array Grating Integrated Cavity (MAGIC) Laser: A New Semiconductor Laser for WDM Applications (1992)

Soole, J. B. D., Poguntke, K., Scherer, A., LeBlanc, H. P., Chang-Hasnain, C., Hayes, J. R., ...

A novel semiconductor laser formed by monolithically integrating an array of active stripes with a passive planar waveguide bearing an etched-in diffraction grating is reported. Laser emission occurs...

1.57 μm InGaAsP/InP surface emitting lasers by angled focus ion beam etching (1992)

Lee, H. P., Scherer, A., Beebe, E. D., Hong, W. P., Bhat, R., Koza, M. A.

The characteristics of 1.57 μm InGaAsP/InP surface emitting lasers based on an in-plan ridged structure and 45° beam deflectors defined by angled focused ion beam (FIB) etching are reported. With...

Ultracompact, low-loss directional couplers on InP based on self-imaging by multimode interference (1991)

Pennings, E. C. M., Deri, R. J., Scherer, A., Bhat, R., Hayes, T. R., Andreadakis, N. C., ...

We report extremely compact (494-µm-long 3 dB splitters, including input/output bends), polarization-insensitive, zero-gap directional couplers on InP with a highly multimode interference region...

Monolithic InP-Based Grating Spectrometer for Wavelength-Division Multiplexed Systems at 1.5 μm (1991)

Soole, J. B. D., Scherer, A., Leblanc, H. P., Andreadakis, N. C., Bhat, R., Koza, M. A.

A monolithic InP-based grating spectrometer for use in wavelength-division multiplexed systems at 1.5 μm is reported. The spectrometer uses a single etched reflective focusing diffraction grating...

Structural studies of lipid A from Pseudomonas aeruginosa PAO1: occurrence of 4-amino-4-deoxyarabinose.

Bhat, R, Marx, A, Galanos, C, Conrad, R S

Lipid A derived from Pseudomonas aeruginosa PAO1 contains a biphosphorylated 1-6-linked glucosamine disaccharide backbone. The reducing glucosamine has an unsubstituted glycosidically linked...

Structural studies of lipid A from Pseudomonas aeruginosa PAO1: occurrence of 4-amino-4-deoxyarabinose.

Bhat, R, Marx, A, Galanos, C, Conrad, R S

Lipid A derived from Pseudomonas aeruginosa PAO1 contains a biphosphorylated 1-6-linked glucosamine disaccharide backbone. The reducing glucosamine has an unsubstituted glycosidically linked...

Steric exclusion is the principal source of the preferential hydration of proteins in the presence of polyethylene glycols.

Bhat, R., Timasheff, S. N.

The preferential interactions of bovine serum albumin, lysozyme, chymotrypsinogen, ribonuclease A, and beta-lactoglobulin with polyethylene glycols (PEGs) of molecular weight 200-6,000 have been...

A mechanistic analysis of the increase in the thermal stability of proteins in aqueous carboxylic acid salt solutions.

Kaushik, J. K., Bhat, R.

The stability of proteins is known to be affected significantly in the presence of high concentration of salts and is highly pH dependent. Extensive studies have been carried out on the stability of...

Maternal insecurity and failure to thrive in Asian children.

Fenton, T R, Bhat, R, Davies, A, West, R

Four Asian babies were investigated because they failed to thrive. In all four cases the failure to thrive was a result of the mother's social isolation and inability to communicate, and to the...

Dampened ventilatory response to added dead space in newborns of smoking mothers

Bhat, R, Broughton, S, Khetriwal, B, Rafferty, G, Hannam, S, Milner, A, ...

Background: Term newborns can compensate fully for an imposed dead space (tube breathing) by increasing their minute ventilation.