Light-Cone Reduction vs. TsT transformations : A Fluid Dynamics Perspective

We compute constitutive relations for a charged $(2+1)$ dimensional Schr\"odinger fluid up to first order in derivative expansion, using holographic techniques. Starting with a locally boosted, asymptotically $AdS$, $4+1$ dimensional charged black brane geometry, we uplift that to ten dimensions and perform $TsT$ transformations to obtain an effective five dimensional local black brane solution with asymptotically Schr\"odinger isometries. By suitably implementing the holographic techniques, we compute the constitutive relations for the effective fluid living on the boundary of this space-time and extract first order transport coefficients from these relations. Schr\"odinger fluid can also be obtained by reducing a charged relativistic conformal fluid over light-cone. It turns out that both the approaches result the same system at the end. Fluid obtained by light-cone reduction satisfies a restricted class of thermodynamics. Here, we see that the charged fluid obtained holographically also belongs to the same restricted class.Comment: 0+22 pages, 1 figur

An Innovative Approach in Post Combustion Carbon Capture and Sequestration towards Reduction of Energy Penalty in Regeneration of Solvent

India as a fast growing economy is pursuing strategic knowledge mission for focused research in the area of climate change. Our R&D in Carbon Capture & Sequestration (CCS) will be initially focused on post combustion carbon capture on coal fired power plants. India is 3rd largest emitter of world after China and US with a share of 6.9% in global emission of CO2, however, India’s per capita GHG emission is only 1.6 MT per annum (MTPA) which is well below the world average 7.5 MTPA. National Mission on Strategic Knowledge for Climate Change aims to develop a better understanding of Climate Science impacts and challenges. The planning commission has announced the Government’s interest in adding a ninth mission i.e. ‘Clean Coal Technologies mission’ that would include Carbon Capture & Sequestration. As regards Carbon Capture & Sequestration (CCS) on coal fired power plants in India is concerned, an innovative concept of integrating solar thermal for steam production will pave way for reducing energy penalty in regeneration of solvents from a level of over 15% to around 05%. This chapter deals with an innovative approach of CCS in which the major issues of energy penalty reduction have been taken care of through use of Solar Steam Generation, through concentrated solar plant (CSP) with 24 × 7 thermal energy storage (TES)

A STUDY OF CLINICAL PATTERN OF ACNE VULGARIS PATIENTS PRESENTING IN A TERTIARY CARE HOSPITAL

Objective: To evaluate the clinical pattern of acne vulgaris in patients attending a tertiary care hospital. Methods: This hospital-based observational study was conducted from September 2021 to March 2022. A total of 203 consecutive patients with acne vulgaris attending dermatology OPD were included. Pregnant and lactating women, drug-induced acne, and other acneiform eruptions were excluded. Data were collected in a pre-designed proforma. The parameters included were age, gender, age of onset, duration, sites of involvement, acne grade, types of lesions, menstrual history, and post-acne complications. Results were expressed in percentages. MS Excel software was used for data entry and analysis. Results: Two hundred and three cases were included, among which 61.6% were female and 38.4% were male. The commonest age group affected was 21-25 y (37.9%) followed by 16-20 y (31.5%). The commonest site of involvement in acne was the face (86.2%) followed by the trunk (9.4%). Arms (2.5%) and the neck (1.9%) were less affected areas. The majority of patients had Grade 2 (53.7%) acne, followed by Grade 3 (21.8%) and Grade 1 (20.7%) and Grade 4 (3.9%). Persistence of acne in females till late age was observed. Post-acne hyperpigmentation 98 (48.3%) and scarring 46 (22.7%) were most common complications. Premenstrual flare was seen in 36 (17.7%) patients. The commonly associated disease with acne is seborrheic dermatitis, observed in 28 (13.8%) patients. Conclusion: This study revealed the clinical pattern of acne vulgaris in a tertiary care hospital in Assam

RP-HPLC METHOD DEVELOPMENT AND VALIDATION FOR SIMULTANIOUS ESTIMATION AND FORCED DEGRADATION STUDIES OF LAMIVUDINE AND RALTEGRAVIR IN SOLID DOSAGE FORM

Objective: A stability indicating reverse phase high-performance liquid chromatography (RP-HPLC) method was developed and validated for the estimation of the combined tablet formulation of lamivudine (LAM) and raltegravir (RAL) in dosage forms and its API.Methods: Chromatographic separation was achieved on inertsil ODS C18 5 µm (4.6 X 150 mm) using a mobile phase (MP) consisting of a mixture of mixed orthophosphoric acid (OPA): acetonitrile (ACN) in the ratio 50:50 v/v which was determined at 242 nm respectively. Results: The assay of LAM and RAL was performed with tablets, and the % assay was found to be 100.12 and 99.89 which shows that the method is useful for routine analysis. The linearity of LAM and RAL was found to be linear with a correlation coefficient of 0.998 and 0.999, which shows that the method is capable of producing good sensitivity. The retention time of LAM and RAL was 1.99 min and 4.34 min respectively; linearity range was found to lie from 15 µg/ml to 75 µg/ml for LAM, 30 µg/ml to 150 µg/ml for RAL with a correlation coefficient of 0.999 respectively. Forced degradation studies were conducted in acidic, basic, thermal, photolytic and peroxide where all the degradation peaks were monitored.Conclusion: The proposed HPLC method was found to be simple, specific, precise, accurate, rapid and economical for simultaneous estimation of LAM and RAL in bulk and tablet dosage form. Thus the validated economical method was applied for forced degradation study of LAM and RAL tablet

Virtual Medical Board: A Distributed Bayesian Agent Based Approach

Distributed Decision Making has become of increasing importance to get solution of different real life problems, where decision makers are in geographically dispersed locations. Application of agent and multi agent system in this Distributed Decision Support System is an evolving paradigm. One of such real life problem is medical diagnosis. For critical medical diagnosis, medical board is formed which is a coordinative discussion mechanism between a group of expert physicians to diagnose a patient. But always forming a medical board with a group of expert physicians may not be possible due to lack of infrastructure, availability, time etc. In that situation the role of multi agent based distributed decision making can comes into play. In this paper we develop a Virtual Medical Board System in which a number of software agents (expert agents) act as a group of expert physician with knowledge base(KB), reasoning capability. They coordinatively discuss with each other to diagnose a patieh each other to diagnose a patient. We represent the discussion module of the system in the form of Bayesian Network of Bayesian Agent (BNBA). In BNBA each BA is the expert software agent whose Knowledge Base (KB) is represented in the form of Bayesian Network (BN). Also the BDI (Belief, Desire, Intention) model of each BA is represented in this paper

Effects of different doses of pig dung on the growth performance of Catla, Catlacatla (Hamilton, 1822)

The experiment was carried out to study the effects of different doses of pig dung on the growth rate of Catlacatla during the summer season. Rate of application of pig dung doses were 10000 kgha-1 yr-1 ,15000 kgha-1 yr-1 , 20000 kgha-1 yr-1 and 25000 kgha-1 yr-1 . The experiment was carried out in a Completely Randomized Block Design. There were four replicates for each treatment where pig dung was applied at 10000 kgha-1 yr-1 (T1), 15000 kgha-1 yr-1 (T2), 20000 kgha-1 yr-1 (T3) and 25000 kgha-1 yr-1 (T4) and control. The control pond did not receive pig dung. After 10 days of application of pig dung, Catla was stocked at the rate of 8,000 nos./ha in the fish ponds. Sampling was done at 15 days interval to study the growth rate and health status of the fishes. At the end of 3 months period, the fishes were harvested, and the performance of growth, survival and total production was recorded viz. 72.92±6.41g.The results of the study clearly indicated that in the indirect integration system of pig-fish farming, where fresh pig dung contains 0.61% nitrogen, 0.50% phosphate-phosphorus (PO4-P), the dung load of 20000 kgha-1 yr-1 is optimum for satisfactory growth of catla, which yield an average production of 5354.00 kgha-1 yr-1

Hybrid TTSV structure for heat mitigation and energy harvesting in 3D IC

Three Dimensional Integration seems to be one of the best candidates to overcome the various challenges and limitations faced by conventional planer integration. But, thermal issues related to this highly promising integration technique are the main bottleneck for wide scale application. This thermal issue threatens the further progress and development of the 3D IC. The best known possible way to reduce the heat generated within the integrated chip is cooling through the thermal through silicon via (TTSV). This work reports the utilization of time dependent fluctuation of temperature which is generated within the active layers of 3D IC. Pyroelectric effect of TTSV materials is used to convert the heat generated within 3D IC to electrical energy. 60K temperature fluctuation within the IC layer was used to convert as electrical energy and 9.89μW output power was observed. This paper reports the novelty of TTSV structure modification where TTSVs are used as simultaneous energy harvester and heat mitigator