Indian Institute of Technology Bhubaneswar

About: Indian Institute of Technology Bhubaneswar is a education organization based out in Bhubaneswar, India. It is known for research contribution in the topics: Large Hadron Collider & Higgs boson. The organization has 1185 authors who have published 3132 publications receiving 48832 citations.

A nano-molar level fluorogenic and oxidation state-selective chromogenic dual reversible chemosensor for multiple targets, Cu2+/S2− and Fe3+/F− ions

Abstract: A pyridine–pyrazole–pyrene-based chemosensor, L, has been developed and fully characterized by all the possible techniques (ESI-MS, NMR, CHN, IR etc.). It has been found that the probe, L, selectively recognizes Cu2+ ion and Fe3+ ion fluorogenically and chromogenically, respectively, among a wide range of competitive metal ions. It has been demonstrated that the probe is not only metal ion-selective but also oxidation state-selective for Fe3+ ions. The metal complexes (Cu and Fe) of the ligand were synthesized and characterized using different spectroscopic techniques and they were also characterised X-ray structurally as well, which confirm the stoichiometry (L : M = 2 : 1). The sensitivities for the fluorogenic sensing of Cu2+ ions and chromogenic sensing of Fe3+ have been found to be as low as nano molar level detection (69 nM and 27 nM, respectively). Further studies reveal that the CuIIL2 complex can act as a “turn-off” fluorescent chemosensor for S2− ions and FeIIIL2 can act as a reversible “turn-off” colorimetric chemosensor for F− ions over other anions.

Novel design of stair climbing wheelchair

Abstract: This paper introduces a simple and novel mechanism for wheelchairs that assists in climbing stairs. The design mechanism consists of two 2 degrees of freedom legs. Each legs consist of two four bar linkages joined to each other in a certain manner. Each leg is fitted with two actuators which assist the chair to move the legs as required. The proposed design has statically stable leg motion with adjustable height. Inverse kinematics analysis has been performed and the position values for each leg is determined. Seating position remains horizontal on climbing ensuring the comfort of the person. This would assist in resolving the balancing issues while climbing the stairs through wheel chair.

Pseudorapidity and transverse momentum dependence of flow harmonics in p Pb and PbPb collisions

Abstract: Measurements of azimuthal angular correlations are presented for high-multiplicity pPb collisions at sNN=5.02TeV and peripheral PbPb collisions at sNN=2.76TeV. The data used in this work were collected with the Compact Muon Solenoid (CMS) detector at the European Organization for Nuclear Research (CERN) Large Hadron Collider (LHC). Fourier coefficients as functions of transverse momentum and pseudorapidity are studied using the scalar product method; four-, six-, and eight-particle cumulants; and the Lee-Yang zero technique. The influence of event plane decorrelation is evaluated using the scalar product method and found to account for most of the observed pseudorapidity dependence.

Ramifications of Atmospheric Humidity on Monsoon Depressions over the Indian Subcontinent

Abstract: In this study, a comprehensive investigation is carried out to examine the sensitivity of tropospheric relative humidity (RH) on monsoon depressions (MDs) under a changing climate regime through surrogate climate change approach over the Indian region. Composite analysis of four MDs show a persistent warming (RH2+) and cooling (RH2−) throughout the troposphere in the sensitivity experiments. In-depth analysis of a MD over the Arabian Sea (AS) exhibits sustained warming for RH2+, which is accredited to 2.6% increase in stratiform clouds accounting for 13% increment in heating, whereas 5% increment in convective clouds hardly contribute to total heating. Frozen hydrometeors (graupel and snow) are speculated to be the major contributors to this heating. Stratiform clouds showed greater sensitivity to RH perturbations in the lower troposphere (1000–750 hPa), albeit very less sensitivity for convective clouds, both in the lower and mid-troposphere (700–500 hPa). Precipitation is enhanced in a moist situation (RH2+) owing to positive feedbacks induced by moisture influx and precipitation efficiency, while negative feedbacks suppressed precipitation in a dry troposphere (RH2−). In a nutshell, it is inferred that under moist (dry) situations, it is highly likely that intense (weak) MDs will occur in the near future over the Indian region.