Heat Transfer in Viscous Free Convective Fluctuating MHD Flow Through Porous Media Past a Vertical Porous Plate with Variable Temperature

In this paper, free convective Magnetohydrodynamics (MHD) flow of a viscous incompressible and electrically conducting fluid past a hot vertical porous plate embedded in a porous medium has been studied. The temperature of the plate varies both in space and time. The main objective of this paper is to study the effect of porosity of the medium coupled with the variation of plate temperature with regards to space and time. The effect of pertinent parameters characterizing the flow has been presented through the graph. The most interesting finding is that presence of porous media has no significant contribution to the flow characteristics. Further, heating and cooling of the plate due to convective current is compensated by the viscous dissipation.   Keywords: MHD flow/Span wise Co-sinusoidal/Free Convection /Heat transfer, porous mediu

Heat Transfer in Viscous Free Convective Fluctuating MHD Flow through Porous Media Past a Vertical Porous Plate with Variable Temperature

In this paper, free convective Magnetohydrodynamics (MHD) flow of a viscous incompressible and electrically conducting fluid past a hot vertical porous plate embedded in a porous medium has been studied. The temperature of the plate varies both in space and time. The main objective of this paper is to study the effect of porosity of the medium coupled with the variation of plate temperature with regards to space and time. The effect of pertinent parameters characterizing the flow has been presented through the graph. The most interesting finding is that presence of porous media has no significant contribution to the flow characteristics. Further, heating and cooling of the plate due to convective current is compensated by the viscous dissipation. Keywords?MHD flow/Span wise Co-sinusoidal/Free Convection /Heat transfer, porous medium

Macronutrient status and yield stability of arecanut (Kahikuchi) under integrated nutrient management practice in Assam

A long term field   experiment was carried out in clay-loam soil at ICAR-CPCRI, Kahikuchi campus,   Guwahati, Assam during 2000-2012 with arecanut variety Kahikuchi with seven   nutrient combinations. The treatments included control (T1), 100 per cent   vermicompost (T2), 200 per cent vermicompost (T3), 100 per cent chemical   fertilizer (T4), 50 per cent vermicompost + 50 per cent chemical fertilizer   (T5), 1/3rd vermicompost + 2/3rd chemical fertilizer   (T6) and 2/3rd vermicompost + 1/3rd chemical fertilizer   (T7). The treatment T7 produced highest fresh ripened arecanut yield of 16.7   kg i.e., about 3.6 kg dry chali per palm. Positive correlations were   obtained between yield of arecanut and soil available N, P, K content.   Significant and positive correlation was found between leaf N, P, K and   available N, P, K content in surface and sub-surface soil. Available N, P and   K content increased over the year under nutrient applied plot that reflected   in yield of arecanut. The average yield in various treatments followed in the   order of T7 > T5 = T6 > T2 = T3 > T4 > T1. The application of   targeted, sufficient and balanced quantities of organic and inorganic   fertilizer will be the need of the hour to make nutrients available for   higher yield, soil fertility maintenance and agricultural sustainability   without polluting environment

Early performance of cocoa (Theobroma cacao L.)genotypes in arecanut under Assam condition of North Eastregion of India

Cocoa is an important plantation crop grown in southern parts of India. Though many cocoa varieties have been released for cultivation in different parts of India, there is no variety recommended for cultivation exclusively for India’s North East region, especially Assam, where arecanut is grown as an important cash crop. Therefore the present investigation was undertaken to study the performance of twelve cocoa genotypes for its growth, pod yield and yield attributing traits for subsequent research programmes. The data for growth, pod yield and yield attributing traits were recorded three years after planting for five years (2015 to 2019), and the mean data were used for analysis. Genotype VTLC 11 significantly produced greater plant height (2.70 m), stem circumference (27.73 cm), height at jorquetting (36.16 cm) and canopy area (17.00 m2). Mean average pod yield among the genotypes varied from 20.65 to 48.40 tree-1 year-1. Genotype VTLC 19 produced significantly higher pod yield (48.40), number of fresh beans pod-1 (34.06), fresh bean weight pod-1 (229.65 g), dry bean weight pod-1 (119.32 g), single dry bean weight (1.20 g) and dry bean yield (1.76 kg). Considering the most economic traits of cocoa, VTLC 19 appears to be the most suitable genotype for commercial cultivation in the region

Sustainability of soil health and system productivity through arecanut based cropping system in the NE Region of India

The North-Eastern part of India contains seven states out of which, Assam is the major producer of arecanut. An attempt was made to study the impact of arecanut based multiple cropping system with proper utilization of recyclable resources on the long-term sustainability of acid soil at Kahikuchi. A long term arecanut based High-Density Multispecies Cropping System garden comprised of two models viz., Model-1 (M1): arecanut (Areca catechu), black pepper (Piper nigrum), banana (Musa spp.), citrus (Citrus limon) and clove (Syzygium aromaticum) and Model-2 (M2): arecanut, black pepper, banana, citrus and nutmeg (Myristica fragrans) as component crops was used. Both the models were sub-divided into three treatments viz., Full dose of recommended fertiliser (T1), 2/3rd of the recommended dose (T2) and 1/3rd of the recommended dose (T3) combined with treatment-wise recycling available biomass in the form of vermicompost and each treatment was replicated thrice. The results indicated that the quantity of recyclable biomass generated ranged between 8.27 to 12.23 t ha-1 year-1 and 8.11 to 12.38 t ha-1 year-1 in model-1 and model-2, respectively and revealed that the T2 treatment in both models improved the soil properties with respect to soil pH, organic carbon, available N, P and K status. Economics of the cropping system revealed that the maximum return was obtained from both Models under T2. The average benefit:cost ratio of T1, T2 & T3 was 3.38, 4.42 & 3.47 under model-1 and 3.34, 4.08 and 3.40 under model-2, respectively. Sustenance of soil pH above 5.0 over the years in the arecanut rhizosphere in both the models were found under T2, but T1 and T3 treatments showed a slow declining of pH towards increasing soil acidity

Forecasting of arecanut market price in north eastern India: ARIMA modelling approach

The paper deals with forecasting of minimum, maximum and average arecanut (Areca catechu L.) prices in the major arecanut markets of the Assam as well as Meghalaya based on the monthly price data. Monthly minimum, maximum, and average market price data of arecanut (in Rs./quintal) for the period May-2003 to March-2012 (for Assam) and February-2003 to March-2012 (for Meghalaya) were used. Box-Jenkins autoregressive integrated moving average (ARIMA) methodology was adopted for developing the models. An interrupted time-series model was also applied to resolve the problem of intervention point (October-2011) for Meghalaya price data. The proposed models were ARIMA (1, 0, 1), ARIMA (1, 1, 1), ARIMA (0, 1, 1) (for Assam market price data series) and, log ARIMA (0, 1, 1), log ARIMA (1, 0, 1) with linear trend and a man-made intervention (Oct-2011) and log ARIMA (0, 1, 1) with linear trend and a manmade intervention (Oct-2011) (for Meghalaya market price data series) for minimum, maximum, and average monthly price series, respectively

Zonotopes and four-dimensional superconformal field theories

The a-maximization technique proposed by Intriligator and Wecht allows us to determine the exact R-charges and scaling dimensions of the chiral operators of four-dimensional superconformal field theories. The problem of existence and uniqueness of the solution, however, has not been addressed in general setting. In this paper, it is shown that the a-function has always a unique critical point which is also a global maximum for a large class of quiver gauge theories specified by toric diagrams. Our proof is based on the observation that the a-function is given by the volume of a three dimensional polytope called "zonotope", and the uniqueness essentially follows from Brunn-Minkowski inequality for the volume of convex bodies. We also show a universal upper bound for the exact R-charges, and the monotonicity of a-function in the sense that a-function decreases whenever the toric diagram shrinks. The relationship between a-maximization and volume-minimization is also discussed.Comment: 29 pages, 15 figures, reference added, typos corrected, version published in JHE

National Workshop on Mental Health Education & Research

Bournemouth University, Liverpool John Moores University and Tribhuvan University in Nepal organised a two-day National Workshop on Mental Health Education & Research in Kathmandu in August 2016. The workshop handbook is a combination of update on the project as well as training materials for nurses and public health lecturers

Mental health training for community maternity workers in Nepal

Background: Mental health is a difficult topic to discuss in Nepal. This makes it hard for front-line maternity-care providers to start a discussion about mental health issues with women. As Nepal has not yet recognised midwifery as a profession, this UK-funded programme (THET) aims to train community health workers i.e. Auxiliary Nurse Midwives (ANMs) on mental health issues related to pregnancy. Purpose/Objective: This needs assessment, of all ANMs working in one district, assesses knowledge of perinatal mental health issues and future training needs. Method: This quantitative study used a structure questionnaire in Nepali at the start of the training of ANMs. The questions covered knowledge, views on mental health and illness and previous training on the topic. Ethical approval was granted by the Nepal Health Research Council (NHRC). Key Findings: In total 74 questionnaires were returned (out of 76). With 97% of ANMSs reporting they never had specific training issues around perinatal mental health. Their knowledge on perinatal mental health is poor, half of them are not aware that pregnancy and childbirth can cause mental illness. People do not talk openly about mental health problem in their local community. Most ANM thought specialised training on perinatal mental health would be useful. Discussion: Mental health in pregnancy/childbirth is often ignored especially in low-income countries like Nepal. In a country without recognised midwives there is a great need to improve attitudes and skills among community-based maternity workers who lacking training on maternity-related mental health issues. There is a great need for a national curriculum to facilitate relevant training