Search Results - "Ojha, N"

Highly sensitive single-fiber MZI configuration for weight sensing by Kumar, Ashish, Subhashree Ojha, N. N, Kumar, Naveen

“…•Cascaded tapered single fiber interferometer for weight sensing is proposed.•Spectral shift and intensity modulation with increase in weight is…”
Get full text

First simultaneous measurements of ozone, CO, and NOy at a high-altitude regional representative site in the central Himalayas by Sarangi, Tapaswini, Naja, Manish, Ojha, N., Kumar, R., Lal, S., Venkataramani, S., Kumar, A., Sagar, R., Chandola, H. C.

“…Simultaneous in situ measurements of ozone, CO, and NOy have been made for the first time at a high altitude site Nainital (29.37°N, 79.45°E, 1958 m above mean…”
Get full text

Ethnomedicinal knowledge of a marginal hill community of Central Himalaya: diversity, usage pattern, and conservation concerns by Ojha, S N, Tiwari, Deepti, Anand, Aryan, Sundriyal, R C

“…Indigenous communities use wild plants to cure human ailments since ancient times; such knowledge has significant potential for formulating new drugs and…”
Get full text

Influences of the springtime northern Indian biomass burning over the central Himalayas by Kumar, Rajesh, Naja, Manish, Satheesh, S. K., Ojha, N., Joshi, H., Sarangi, T., Pant, P., Dumka, U. C., Hegde, P., Venkataramani, S.

“…The influences of the springtime northern Indian biomass burning are shown for the first time over the central Himalayas by using three years (2007–2009) of…”
Get full text

Effect of photonic stop-band on the modes of a weakly scattering DCM-PVA waveguide random laser by Sarkar, Anirban, Ojha, N. N. Subhashree, Bhaktha, B. N. Shivakiran

“…We present an experimental study on the effect of the photonic stop-band (PSB) on the random laser (RL) emission characteristics of a…”
Get full text

Automatic, three-segment, MR-based attenuation correction for whole-body PET/MR data by Schulz, V., Torres-Espallardo, I., Renisch, S., Hu, Z., Ojha, N., Börnert, P., Perkuhn, M., Niendorf, T., Schäfer, W. M., Brockmann, H., Krohn, T., Buhl, A., Günther, R. W., Mottaghy, F. M., Krombach, G. A.

“…Purpose The combination of positron emission tomography (PET) and magnetic resonance (MR) tomography in a single device is anticipated to be the next step…”
Get full text

Design and performance evaluation of a whole-body Ingenuity TF PET-MRI system by Zaidi, H, Ojha, N, Morich, M, Griesmer, J, Hu, Z, Maniawski, P, Ratib, O, Izquierdo-Garcia, D, Fayad, Z A, Shao, L

“…The Ingenuity TF PET-MRI is a newly released whole-body hybrid PET-MR imaging system with a Philips time-of-flight GEMINI TF PET and Achieva 3T X-series MRI…”
Get more information

What controls the seasonal cycle of black carbon aerosols in India? by Kumar, Rajesh, Barth, M. C., Pfister, G. G., Nair, V. S., Ghude, Sachin D., Ojha, N.

“…The seasonal variability of black carbon (BC) aerosols in India is studied using high resolution (10 km) BC simulations conducted using the Weather Research…”
Get full text

Refractive index sensitivity enhancement of SF-MZI through metal film deposition by Ojha, N.N. Subhashree, Kumar, Naveen

“…•RI sensitivity of SF-MZI has been enhanced by employing Aluminium metal coating.•It exhibited the highest sensitivity of 1.47 nm/ppm for F− ion reported so…”
Get full text

Effects of dust aerosols on tropospheric chemistry during a typical pre-monsoon season dust storm in northern India by Kumar, R, Barth, M. C, Madronich, S, Naja, M, Carmichael, G. R, Pfister, G. G, Knote, C, Brasseur, G. P, Ojha, N, Sarangi, T

“…This study examines the effect of a typical pre-monsoon season dust storm on tropospheric chemistry through a case study in northern India. Dust can alter…”
Get full text

Decomposition of persistent luminescent microparticles in corrosive phosphate glass melt by Ojha, N., Nguyen, H., Laihinen, T., Salminen, T., Lastusaari, M., Petit, L.

“…[Display omitted] •Persistent luminescence phosphate glasses were fabricated using direct doping method.•The persistence luminescent properties of the glass…”
Get full text

Upconversion from fluorophosphate glasses prepared with NaYF4:Er3+,Yb3+ nanocrystals by Ojha, N, Tuomisto, M, Lastusaari, M, Petit, L

“…The direct doping method was applied to fabricate upconverter fluorophosphate glasses in the system (90NaPO 3 -(10- x )Na 2 O- x NaF) (mol%) by adding NaYF 4…”
Get full text

A simple technique for detecting the broad range of organic/inorganic materials by Ojha, N.N. Subhashree, Kumar, Naveen

“…•Contribution of tapered and un-tapered section of SF-MZI in sensing is quantified.•A unique constant assigned to a particular compound is enumerated.•Proposed…”
Get full text

Post-fabrication refractive index sensitivity enhancement technique for single-fiber Mach-Zehnder interferometer by Ojha, N.N. Subhashree, Kumar, Ashish, Kumar, Naveen

“…•Single fiber MZI was fabricated for sensing RI over large range of measurements.•The interferometer was placed in fiber loop of MZI cascaded fiber loop…”
Get full text

Traditional Dietary Knowledge of a Marginal Hill Community in the Central Himalaya: Implications for Food, Nutrition, and Medicinal Security by Ojha, S N, Anand, Aryan, Sundriyal, R C, Arya, Deepshikha

“…Himalayan communities illustrate a rich agriculture-medicine use system that not only provides adequate dietary diversity and nutrition but also delivers…”
Get full text

Sintered silica bodies with persistent luminescence by Ojha, N., Trautvetter, T., Norrbo, I., Kalide, A., Lastusaari, M., Mueller, R., Petit, L.

“…Strong persistent luminescence (PeL) from silica bodies was obtained, for the first time, by sintering silica powder mixed with PeL SrAl2O4:Eu2+,Dy3+…”
Get full text

Polarization induced non-reciprocal phase controlled all-fiber loop mirror based inclinometer by Momosaki, Ryusei, Kumar, Ashish, Kumar, Naveen, Ojha, N.N. Subhashree

“…•Non-reciprocal signature of phase shifters inserted in FLM has been quantified.•A single-mode FLM based inclinometer is demonstrated over wide angular…”
Get full text

Characterisation of 4274 accessions of common bean (Phaseolus vulgaris L.) germplasm conserved in the Indian gene bank for phenological, morphological and agricultural traits by Rana, J. C, Sharma, T. R, Tyagi, R. K, Chahota, R. K, Gautam, N. K, Singh, Mohar, Sharma, P. N, Ojha, S. N

“…Common bean is one of the most important legume crops worldwide. Response to selection and success of hybridisation in common bean primarily depends on the…”
Get full text

Upconversion from fluorophosphate glasses prepared with NaYF 4 :Er 3+ ,Yb 3+ nanocrystals by Ojha, N, Tuomisto, M, Lastusaari, M, Petit, L

“…The direct doping method was applied to fabricate upconverter fluorophosphate glasses in the system (90NaPO -(10- )Na O- NaF) (mol%) by adding NaYF :Er ,Yb…”
Get full text

The influence of local meteorology and convection on carbon monoxide distribution over Chennai by Sahu, L K, Tripathi, Nidhi, Sheel, Varun, Ojha, N

“…The influence of local meteorology and convection activities on the vertical distribution of carbon monoxide (CO) over Chennai in southern India was…”
Get full text