Stabilization of Black Cotton Soil using Lime, Coir Fiber & Rice Husk

Because of their low bearing capacity, the expansive black cotton soils' high swelling and shrinking characteristics have posed numerous challenges to construction projects. When subjected to varying levels of moisture, black cotton soil expands and contracts rapidly. As a result, stabilising the soil is necessary to address these issues. Rice Husk Ash (RHA), Cori Fiber, and Lime are being tested in this study to see if they can act as a stabilising material in the expansive black cotton soil. The impact of RHA, CF, and LIME on the expansive soil's index and engineering properties was studied in the lab. Coir fibre concentration is 1.5 percent, lime is 5 percent by weight of dry soil, and RHA is mixed in at a ratio of 20 percent. The virgin soil sample is first tested for specific gravity and grain size distribution. With and without these admixtures soil's index properties like its plastic limit, liquid limit and shrinkage limit and its strength properties like its California Bearing Ratio, Unconfined Compressive Strength tests are discovered. According to the test results, a combination of 5 percent lime and 1.5 percent coir fibre yielded the strongest soil and best index properties

Some observations on the chemistry of glycerides-Part I

A critical analysis of the trisaturated glyceride content of fats shows that the natural fats are characterised by definite numerical relationships between the proportions of GS3 experimentally determined and those possible according to chance distribution and that the ratio between these is a specific characteristic of the source

Signals of selection in the mitogenome provide insights into adaptation mechanisms in heterogeneous habitats in a widely distributed pelagic fish

Oceans are vast, dynamic, and complex ecosystems characterized by fluctuations in environmental parameters like sea surface temperature (SST), salinity, oxygen availability, and productivity. Environmental variability acts as the driver of organismal evolution and speciation as organisms strive to cope with the challenges. We investigated the evolutionary consequences of heterogeneous environmental conditions on the mitogenome of a widely distributed small pelagic fish of Indian ocean, Indian oil sardine, Sardinella longiceps. Sardines were collected from different eco-regions of the Indian Ocean and selection patterns analyzed in coding and non-coding regions. Signals of diversifying selection were observed in key functional regions involved in OXPHOS indicating OXPHOS gene regulation as the critical factor to meet enhanced energetic demands. A characteristic control region with 38–40 bp tandem repeat units under strong selective pressure as evidenced by sequence conservation and low free energy values was also observed. These changes were prevalent in fishes from the South Eastern Arabian Sea (SEAS) followed by the Northern Arabian Sea (NAS) and rare in Bay of Bengal (BoB) populations. Fishes belonging to SEAS exhibited accelerated substitution rate mainly due to the selective pressures to survive in a highly variable oceanic environment characterized by seasonal hypoxia, variable SST, and food availability

A tentative method for the determination of mixed glycerides present in natural fats by estimating the saturated acids present in azelao glycerides obtained by permanganate oxidation in acetone

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The oil of Mimusops Elangi (Linn.)

This article does not have an abstract

The glyceride composition of fats and oils. Part II. The fatty acids and glycerides of Terminalia belerica (Roxb.)

This article does not have an abstract

A Novel Signal Processing Method for Friction and Sliding Wear

© 2021 by ASME. This is the accepted manuscript version of an article which has been published in final form at https://doi.org/10.1115/1.4052063This current study proposed a new computationally efficient and comparatively accurate algorithm for calculating both static and dynamic coefficients of friction from high frequency data. Its scope embraced an application in a real-time friction-based system, such as active braking safety systems in automobile industries. The signal sources were from a heavy-duty reciprocating dry sliding wear test platform, focused on experimental data related to friction induced by stick-slip phenomena. The test specimen was a polytetrafluoroethylene (PTFE)-coated basalt/vinyl ester composite material, tested at a large scale. The algorithm was primarily aimed to provide scalability for processing significantly large tribological data in a real-time. Besides a computational efficiency, the proposed method adopted to evaluate both static and dynamic coefficients of friction using the statistical approach exhibited a greater accuracy and reliability when compared with the extant models. The result showed that the proposed method reduced the computation time of processing and reduced the variation of the absolute values of both static and dynamic frictions. However, the variation of dynamic friction was later increased at a particular threshold, based on the test duration.Peer reviewe

Comparison of the reproductive biology of two stocks of Indian subcontinental Mugil cephalus (Linnaeus, 1758) with special reference to reproductive isolation and philopatry

130-140The study of reproductive biology is a prerequisite for fishery management and conservation. The current study aimed to compile all available information on the reproductive biology of the grey mullet, Mugil cephalus from two geographical regions of India, Cochin backwaters (west coast; n = 362) and Pulicat (east coast; n = 223) southern India to decipher the possible differences in reproductive and biological attributes between the geographical groups. The LWR showed isometric growth (b = 3.08) for females on the west coast and positive allometric growth (b = 3.338) on the east coast, whereas the males showed negative allometric growth on both coasts. The sex ratio (male: female) recorded in this study was 1:1.2 on the west coast and was well balanced. On the east coast, the sex ratio was 1: 2.09 and deviated significantly from the expected 1:1 ratio. The gonadal morphology and developmental pattern were the same for both groups of M. cephalus. The length at maturity values of both males (L50 = 349.3 mm TL on the west coast and 375.8 mm TL on the east coast) and female (L50 = 437.6 mm TL in the west coast and 394.9 mm TL in the east coast) showed a significant difference between two groups. Seasonal distribution of GSI and maturity stages suggested that the spawning period of M. cephalus was between May and July coinciding with the onset of the southwest monsoon on the west coast while on the east coast it was between December and January months during the north-east monsoon. The reproductive isolation and philopatry in west and east coast M. cephalus groups are discussed based on the observations on the spatio-temporal distribution of fishes in the sampling areas

Comparison of the reproductive biology of two stocks of Indian subcontinental Mugil cephalus (Linnaeus, 1758) with special reference to reproductive isolation and philopatry

The study of reproductive biology is a prerequisite for fishery management and conservation. The current study aimed to compile all available information on the reproductive biology of the grey mullet, Mugil cephalus from two geographical regions of India, Cochin backwaters (west coast; n = 362) and Pulicat (east coast; n = 223) southern India to decipher the possible differences in reproductive and biological attributes between the geographical groups. The LWR showed isometric growth (b = 3.08) for females on the west coast and positive allometric growth (b = 3.338) on the east coast, whereas the males showed negative allometric growth on both coasts. The sex ratio (male: female) recorded in this study was 1:1.2 on the west coast and was well balanced. On the east coast, the sex ratio was 1: 2.09 and deviated significantly from the expected 1:1 ratio. The gonadal morphology and developmental pattern were the same for both groups of M. cephalus. The length at maturity values of both males (L50 = 349.3 mm TL on the west coast and 375.8 mm TL on the east coast) and female (L50 = 437.6 mm TL in the west coast and 394.9 mm TL in the east coast) showed a significant difference between two groups. Seasonal distribution of GSI and maturity stages suggested that the spawning period of M. cephalus was between May and July coinciding with the onset of the southwest monsoon on the west coast while on the east coast it was between December and January months during the north-east monsoon. The reproductive isolation and philopatry in west and east coast M. cephalus groups are discussed based on the observations on the spatio-temporal distribution of fishes in the sampling areas