Dynamic control of laser-produced proton beams (2008)
Kar, S., Markey, K., Simpson, P.T., Bellei, C., Green, J.S., Nagel, S.R., ...
The emission characteristics of intense laser driven protons are controlled using ultrastrong (of the order of 109 V/m) electrostatic fields varying on a few ps time scale. The field structures are...
Dynamic control of laser-produced proton beams (2008)
Kar, S., Markey, K., Simpson, P.T., Bellei, C., Green, J.S., Nagel, S.R., ...
The emission characteristics of intense laser driven protons are controlled using ultrastrong (of the order of 109 V/m) electrostatic fields varying on a few ps time scale. The field structures are...
Radiation pressure acceleration of thin foils with circularly polarized laser pulses (2008)
Robinson, APL, Zepf, M, Kar, S, Evans, RG, Bellei, C
A new regime is described for radiation pressure acceleration of a thin foil by an intense laser beam of above 10(20) W cm(-2). Highly monoenergetic proton beams extending to giga-electron-volt...
High contrast plasma mirror: spatial filtering and second harmonic generation at 1019 W cm-2 (2008)
Hörlein, Rainer, Dromey, B., Adams, D., Nomura, Yutaka, Kar, S., Markey, K., ...
Nuclear activation as a high dynamic range diagnostic of laser-plasma interactions (2008)
Clarke, RJ, Simpson, PT, Kar, S, Green, JS, Bellei, C, Carroll, DC, ...
Dynamic Control of Laser Produced Proton Beams (2007)
Kar, S., Markey, K., Simpson, P. T., Dromey, B., Borghesi, M., Zepf, M., ...
The emission characteristics of intense laser driven protons are controlled using ultra-strong (of the order of 10^9 V/m) electrostatic fields varying on a few ps timescale. The field structures are...
Radiation Pressure Acceleration of Thin Foils with Circularly Polarized Laser Pulses (2007)
Robinson, A. P. L., Zepf, M., Kar, S., Evans, R. G., Bellei, C.
A new regime is described for Radiation Pressure Acceleration of a thin foil by an intense laser beam of above 10^20 W/cm^2. Highly monoenergetic proton beams extending to GeV energies can be...
Kar, S, Sarkar, J, Ghosh, B, Raychaudhuri, AK
We have studied the spatially resolved local electronic properties of nanostructured films of a colossal magnetoresistive (CMR) material by local conductance mapping (LCMAP) using a variable...
Generation and Observation of Coherent, Long--Lived Structures in a Laser--Plasma Channel (2007)
Liseykina, T. V., Ceccherini, F., Cornolti, F., Echkina, E. Yu., Macchi, A., Pegoraro, F., ...
In recent experiments of laser pulse interaction at relativistic intensities with a low density plasma, the proton radiography technique showed evidence of long--lived field structures generated...
Dynamics of charge-displacement channeling in intense laser-plasma interactions (2007)
Kar, S., Borghesi, M., Cecchetti, C. A., Romagnani, L., Ceccherini, F., Liseykina, T. V., ...
The dynamics of transient electric fields generated by the interaction of high intensity laser pulses with underdense plasmas has been studied experimentally with the proton projection imaging...
Macchi, A., Ceccherini, F., Cornolti, F., Kar, S., Borghesi, M.
The dynamics of electric field generation and radial acceleration of ions by a laser pulse of relativistic intensity propagating in an underdense plasma has been investigated using an one-dimensional...
Ozkan,O., Adiguzel,S., Kar,S., Kurt,M., Yakistiran,S., Cesaretli,Y., ...
Scorpions can be considered living fossils because they have changed so little during the last 400 million years. They are venomous arthropods of the Arachnida class and regarded as relatives of...
Ozkan,O., Adiguzel,S., Kar,S., Yakistiran,S., Cesaretli,Y., Karaer,K. Z.
Scorpion envenomation remains a real health problem in many countries. In scorpionism cases, it is often recommended that patients be treated with species-specific antivenom. Androctonus crassicauda...
Ozkan,O., Kar,S., Güven,E., Ergun,G.
Scorpions are venomous arthropods of the class Arachnida and are considered relatives of spiders, ticks and mites. There are approximately 1,500 species of scorpions worldwide, which are...
Kar, S, Sarkar, J, Ghosh, B, Raychaudhuri, AK
We have studied the spatially resolved local electronic properties of nanostructured films of a colossal magnetoresistive (CMR) material by local conductance mapping (LCMAP) using a variable...
Pattern formation in reaction-diffusion system in crossed electric and magnetic fields (2006)
Riaz, SS, Banarjee, S, Kar, S, Ray, DS
We consider a reaction-diffusion system in crossed electric and magnetic fields lying on the reaction plane. It is shown that a charge separation along the direction normal to the reaction plane...
The aim of the present study was to analyze the parametric values of Androctonus crassicauda (Oliver, 1807), the most significant scorpion species in Turkey. For this purpose, 11 male and 11 female...
Pattern formation in reaction-diffusion system in crossed electric and magnetic fields (2006)
Riaz, SS, Banarjee, S, Kar, S, Ray, DS
We consider a reaction-diffusion system in crossed electric and magnetic fields lying on the reaction plane. It is shown that a charge separation along the direction normal to the reaction plane...
Proton radiography of a laser-driven implosion (2006)
Mackinnon, AJ, Patel, P, Borghesi, M, Clarke, RC, Freeman, RR, Habara, H, ...
Protons accelerated by a picosecond laser pulse have been used to radiograph a 500 mu m diameter capsule, imploded with 300 J of laser light in 6 symmetrically incident beams of wavelength 1.054 mu m...
Impulsive electric fields driven by high-intensity laser matter interactions (2006)
Borghesi, M, Kar, S, Romagnani, L, Toncian, T, Antici, P, Audebert, P, ...
The interaction of high-intensity laser pulses with matter releases instantaneously Ultra-large currents of highly energetic electrons, leading to the generation of highly-transient, large-amplitude...
Estimation of moisture diffusivity of porcine skin (2006)
Kar, S, Chen, X D, Adhikari, B P, Hossain, M M, Garg, S, Lin, S X Q
Ganga Water Pollution and Occurrence of Enteric Diseases in Varanasi City (2005)
Pandey, M, Dixit, V, Katiyar, G, Nath, G, Sundram, S, Chandra, N, ...
Toughened epoxy modified with phenol-nonyl phenol based polymer (2005)
Behera, D, Kar, S, Banthia, AK
Purpose – To evaluate the efficiency of modifying epoxy resin using phenol-nonyl phenol based polymer (PNPF) for toughness improvement and optimise the results of such a modification....
Toughened epoxy modified with phenol-nonyl phenol based polymer (2005)
Behera, D, Kar, S, Banthia, AK
Purpose – To evaluate the efficiency of modifying epoxy resin using phenol-nonyl phenol based polymer (PNPF) for toughness improvement and optimise the results of such a modification....
Study of electron-beam propagation through preionized dense foam plasmas (2005)
Jung, R, Osterholz, J, Lowenbruck, K, Kiselev, S, Pretzler, G, Pukhov, A, ...
Jung, R, Willi, O, Borghesi, M, Kar, S, Romagnami, L, Galimberti, M, ...
Study of electron beam propagation in dense plasmas (2005)
Jung, R, Willi, O, Borghesi, M, Kar, S, Osterholz, J, Lowenbruck, K, ...
On quasi-ideals and bi-ideals in ternary semirings (2005)
We introduce the notions of quasi-ideal and bi-ideal in ternary semirings and study some properties of these two ideals. We also characterize regular ternary semiring in terms of these two subsystems...
Proton radiography as an electromagnetic field and density perturbation diagnostic (invited) (2004)
Mackinnon, AJ, Patel, PK, Town, RP, Edwards, MJ, Phillips, T, Lerner, SC, ...
Multi-MeV proton source investigations in ultraintense laser-foil interactions (2004)
Borghesi, M, Mackinnon, AJ, Campbell, DH, Hicks, DG, Kar, S, Patel, PK, ...
A system architecture for mobile broadband access using wireless ATM (1999)
Singh, M, Kar, S, Prasad, S, Arvind, D
We present a system level architecture for supporting mobility in an ATM-based wireless personal communication network (PCN). The proposed architecture uses a networking scheme based on intelligent,...
System performance of CDMA fiber optic LANs with non-ideal component models (1998)
Conventional multiple access schemes do not exploit the high bandwidth of the optical fiber. Direct-sequence spread spectrum systems are a class of code division multiple-access (CDMA) systems that...
Scale Factor Duality and the Energy Condition Inequalities (1996)
We demonstrate, by a simple analysis, that cosmological line elements related by scale factor duality also exhibit a duality with respect to the conservation/violation of the Weak Energy Condition...
S-Duality and Cosmological Constant in String Theory (1995)
Kar, S., Maharana, J., Singh, H.
The S-duality invariance of the equations of motion of four dimensional string effective action with cosmological constant, $\Lambda $, is studied. It is demonstrated that the S-duality symmetry of...
An Algorithm to Generate Classical Solutions for String Effective Action (1992)
Kar, S., Khastgir, S., Kumar, A.
It is shown explicitly, that a number of solutions for the background field equations of the string effective action in space-time dimension D can be generated from any known lower dimensional...
Recovery of Cu-Ni Alloy From Ni-Rich Anode Sla-G (1990)
Copyright for this article belongs to Indian Institute of Metals
Two computer aided design algorithms, PAD and PAL, are suggested for the design of Ti:$LiNbO_3$ directional coupler based photonic switching architectures. PAD (photonic architecture designer)...
On the CNET: a rearrangeable nonblocking optical interconnection network (1989)
A planar, circular, rearrangeable nonblocking optical switching architecture using $N(N-1) Ti:LiNbO_3$ directional coupler switches is suggested. Various figures of merit such as the...
On the CNET: a rearrangeable nonblocking optical interconnection network (1989)
A planar, circular, rearrangeable nonblocking optical switching architecture using $N(N-1) Ti:LiNbO_3$ directional coupler switches is suggested. Various figures of merit such as the...
Two computer aided design algorithms, PAD and PAL, are suggested for the design of Ti:$LiNbO_3$ directional coupler based photonic switching architectures. PAD (photonic architecture designer)...
Kar, S., Seto, D., Doré, S., Quirion, R.
Insulin-like growth factors-I and -II (IGF-I and -II) are structurally related mitogenic polypeptides with potent growth promoting effects. These peptides and their corresponding IGF-I and -II...
Experimental visceral leishmaniasis: role of trans-aconitic acid in combined chemotherapy.
Kar, S, Kar, K, Bhattacharya, P K, Ghosh, D K
We previously reported the effectiveness of trans-aconitic acid (TAA) as an antileishmanial compound. Inhibitory effects of TAA along with other antileishmanial compounds on transformation and in...
Sharma, C, Maiti, S, Mukhopadhyay, A K, Basu, A, Basu, I, Nair, G B, ...
We studied the restriction fragment length polymorphism of the rRNA gene and CTX genetic element in Vibrio cholerae O139 Bengal, which resurged in Calcutta in September 1996 after a gap of 32 months....
Nontypeable Haemophilus influenzae HF0295, isolated by aspiration from the middle ear of a patient with otitis media, expresses long, thick, and hemagglutinating pili of a single serotype (LKP1) on...
Entry of Bartonella bacilliformis into erythrocytes.
Benson, L A, Kar, S, McLaughlin, G, Ihler, G M
Bartonella bacilliformis, which causes the human diseases Oroya fever and verruga peruana, binds to human erythrocytes in vitro and produces substantial and long-lasting deformations in erythrocyte...
Nishikawa, Y, Kar, S, Wiest, L, Pegg, A E, Carr, B I
We screened genes responsive to transforming growth factor-beta (TGF-beta 1) protein in a human hepatoma cell line (Hep3B) using a PCR-mediated differential display technique, in order to investigate...
Kar, S., Seto, D., Doré, S., Quirion, R.
Insulin-like growth factors-I and -II (IGF-I and -II) are structurally related mitogenic polypeptides with potent growth promoting effects. These peptides and their corresponding IGF-I and -II...
Experimental visceral leishmaniasis: role of trans-aconitic acid in combined chemotherapy.
Kar, S, Kar, K, Bhattacharya, P K, Ghosh, D K
We previously reported the effectiveness of trans-aconitic acid (TAA) as an antileishmanial compound. Inhibitory effects of TAA along with other antileishmanial compounds on transformation and in...
Sharma, C, Maiti, S, Mukhopadhyay, A K, Basu, A, Basu, I, Nair, G B, ...
We studied the restriction fragment length polymorphism of the rRNA gene and CTX genetic element in Vibrio cholerae O139 Bengal, which resurged in Calcutta in September 1996 after a gap of 32 months....
Nontypeable Haemophilus influenzae HF0295, isolated by aspiration from the middle ear of a patient with otitis media, expresses long, thick, and hemagglutinating pili of a single serotype (LKP1) on...
Entry of Bartonella bacilliformis into erythrocytes.
Benson, L A, Kar, S, McLaughlin, G, Ihler, G M
Bartonella bacilliformis, which causes the human diseases Oroya fever and verruga peruana, binds to human erythrocytes in vitro and produces substantial and long-lasting deformations in erythrocyte...
Nishikawa, Y, Kar, S, Wiest, L, Pegg, A E, Carr, B I
We screened genes responsive to transforming growth factor-beta (TGF-beta 1) protein in a human hepatoma cell line (Hep3B) using a PCR-mediated differential display technique, in order to investigate...
Pinder, M, Kar, S, Withey, K S, Lundin, L B, Roelants, G E
A prominent pathogenic facet of Theileria infections is that the parasite infects lymphocytes and 'transforms' them into parasitized lymphoblastoid cells which are highly proliferative and can be...
Human immunodeficiency virus-1 reverse transcriptase heterodimer stability.
Lebowitz, J., Kar, S., Braswell, E., McPherson, S., Richard, D. L.
Structural and biochemical evidence strongly supports a heterodimeric (p66p51) active form for human immunodeficiency virus-1 reverse transcriptase (RT). Heterodimer stability was examined by...