Utilisation of High Energy Propellant Waste in Manufacturing of Fired Clay Bricks to Enhance the Acoustic Properties

The disposal and waste management of solid high energy propellant (HEP) is a considerate conservational problem. HEP waste is currently disposed in open or confined burning which may cause environmental hazards. In this paper, we examined and discussed results on recycling of HEP waste into fired clay bricks baked in different orientation. HEP modified bricks with 1.5%, 3% and 5 wt. % HEP waste content were manufactured and tested, and then compared against virgin clay bricks without HEP content. The effect of directional orientation of bricks baked with varying HEP content on acoustic properties were experimented and discussed. The sound transmission loss decreases with increase in HEP waste due to formation of independently closed directional pores. The transmission loss of horizontally baked during firing of bricks is nearly 5dB lower than vertically baked bricks. Results of the experimental studies indicate that HEP waste can be utilised in fired clay bricks and different orientation baking further enhances the acoustic properties

Study on High Energy Propellant Waste in the Processing of Fired Clay Bricks

Utilisation of propellant waste in fabrication of bricks is not only used as efficient waste disposal method but also to get better functional properties. In the present study, high energy propellant (HEP) waste additive mixed with soil and fly ash in different proportions during manufacturing of bricks has been investigated experimentally. X-ray diffraction (XRD) studies were carried out to confirm the brick formation and the effect of HEP waste. Ceramic bricks were fabricated with HEP waste additive in proper proportions i.e. 0.5 wt %, 1.0 wt %, 1.5 wt %, 2.0 wt %, 2.5 wt %, 3 wt %, 3.5 wt %, and 4 wt % and then evaluated for water absorption capability and compressive strength. Compressive strength of 6.7 N/mm2, and Water absorption of 22 % have been observed from modified fired bricks impregnated with HEM waste additive. Scanning electron microscopy (SEM) studies were carried out to analyze the effect of HEP waste additive on pore formation and distribution in the bricks. Further, the heat resulting from decomposition of propellants can cause a decrease in the energy required of baking process. The process of manufacturing of bricks with HEP waste additive is first of its kind till date

The Polygenic and Monogenic Basis of Blood Traits and Diseases

Blood cells play essential roles in human health, underpinning physiological processes such as immunity, oxygen transport, and clotting, which when perturbed cause a significant global health burden. Here we integrate data from UK Biobank and a large-scale international collaborative effort, including data for 563,085 European ancestry participants, and discover 5,106 new genetic variants independently associated with 29 blood cell phenotypes covering a range of variation impacting hematopoiesis. We holistically characterize the genetic architecture of hematopoiesis, assess the relevance of the omnigenic model to blood cell phenotypes, delineate relevant hematopoietic cell states influenced by regulatory genetic variants and gene networks, identify novel splice-altering variants mediating the associations, and assess the polygenic prediction potential for blood traits and clinical disorders at the interface of complex and Mendelian genetics. These results show the power of large-scale blood cell trait GWAS to interrogate clinically meaningful variants across a wide allelic spectrum of human variation. Analysis of blood cell traits in the UK Biobank and other cohorts illuminates the full genetic architecture of hematopoietic phenotypes, with evidence supporting the omnigenic model for complex traits and linking polygenic burden with monogenic blood diseases

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Auxin regulated poly(A)polymerase activity in <i>Cicer arietinum </i>epicotyls

926-930There was a linear increase in poly (A+) polymerase activity in the C. arietinum epicotyls during germination. Six-day-old auxin treated seedlings showed about 3-4 fold stimulation in enzyme activity, accompanied with 3-fold rise in the relative abundance of poly (A+) RNA levels. Actinomycin D, cycloheximide, cordycepin and amino acid analogues caused dramatic decline in poly (A+) polymerase as well as poly (A+) RNA levels. It seems that auxin induced a de novo synthesis of this enzyme

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Not AvailableEight diverse homozygous tomato parental lines were crossed in half diallel fashion, to develop twenty-eight hybrids. These 28 F1 hybrids and their parents were evaluated at Department of Vegetable Science, C.H.F., CAU, Pasighat, A.P. during 2014-2015. A wide range of variation was observed for fruit yield and related constituents. The high PCV, GCV, ECV, heritability (broad sense), and genetic advance over percentage of mean were recorded for fruit yield per plant. DVRT-1 × CHFT-50 was found earliest flowering in 50.67 days and earliest harvest in 70.00 days. Earliest flowering concurrent with early fruit set that are expressed in all hybrids under studied. The highest fruit yield was established in DVRT-2 × CHFT-77 (9.13 kg), followed by DVRT-2 × H-86 (6.86 kg) and CHFT-60 × CHFT-71 (5.92 kg). Among the hybrids, the fruit weight was correlated with fruit yield. Cross, H-86 × CHFT-50 was given high yield along with quality characters. The hybrid DVRT-2 × CHFT-77, H-86 × CHFT-50 and CHFT-60 × CHFT-71 were found best regarding fruit yield, quality traits and earliness. Therefore, the current study showed that hybrid breeding approaches strengthening to improve yield, earliness together with qualities.Not Availabl

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Not AvailableThe objective of this study was to carry out the economic evaluation of different aquaculture systems in coastal waters of Goa. Break-even analysis was used to compute the economic viability of different culture systems. A survey was also conducted to study the perception of farmers on different aquaculture technologies introduced in coastal waters. Among the four aquaculture systems studied, the semi-enclosed multi-species culture system was the most productive. The highest benefit-cost ratio and rate of return and shortest payback period were observed for the semi-enclosed water system with multi-species culture. Thus, the multi-species culture was found more economically viable compared to the single-species system under similar environmental conditions. Moreover, for the semi-enclosed system, the productivity and survival of species were comparatively higher due to the control of water flow through sluice gates. Goa is rich in semi-enclosed water bodies, which have a history of being used for shrimp farming, but these systems can be utilized for multi-species aquaculture. Perception of farmers on the dissemination of culture techniques revealed that adequate technical support increases their confidence level. This paper posits that there is sufficient scope and feasibility for developing multi-species aquaculture practices in unutilised semi-enclosed coastal areas of Goa by giving adequate technical support to the farmers.Not Availabl

Green synthesis of novel (E)-2-(1,4-dioxo-1,2,3,4-tetrahydrophthalazine-2-carbonyl)-3-(1H-indol-3-yl)acrylonitriles

<div><p>Green synthesis of novel title compounds (6) has been developed from 3-(1,4-dioxo-3,4-dihydrophthalazin-(1H)-yl)-3-oxopropanenitrile (<b>3</b>) and indole-3-aldehyde (<b>4</b>) using Knoevenagel condensation followed by alkylation with alkylating agents. Compound <b>6</b> could also be synthesised by alkylation of <b>4</b> followed by condensation with <b>3</b>. In an alternate sequence of reactions, <b>6</b> could be synthesised either from treatment of <b>3</b> with N,N-dimethylformamide dimethyl acetal to form (E)-3-(dimethlamino)-2-(1,4-dioxo-1,2,3,4-tetrahydrophthalazine-2-carbonyl)acrylonitrile <b>8</b> followed by reaction with <b>10</b> or by the reaction <b>8</b> with <b>9</b> followed by alkylation.</p></div