Volume 1 Issue 3

1.Dijet production in generic contact interaction at linear colliders

Author: Swapan Majhi

Abstract: We consider dijet production at a e⁺e^– collider in a class of effective theories with the relevant operators being four-fermion contact interaction. Despite the nonrenormalizable nature of the inter- action, we explicitly demonstrate that calculating QCD corrections is both possible and meaningful. Calculating the corrections for various differential distributions, we show that these can be substantial and significantly different from those within the SM. Furthermore, the corrections have a very distinctive flavor dependence.

DOI: doi.org/10.15864/ajps.1301

2.Detection of different adulteration from milk with non-destructive approach(Near infrared spectroscopy): A short review

Author: Agnibha Das Majumdar, Amandeep Kaur, Pavas, Neha Munjal, Uma Kamboj, Tanay Pramanik

Abstract: The present article is a review work about the role of near-infrared spectroscopy to detect different adulterants in the milk. Milk is a nutritive food and very useful and healthy drink for the child and senior citizens. It has various nutrition parameters. But to increase the products many adulterants are added in the milk which are very harmful for the human body. The adulterants can be detected using various chemical methods which are time-consuming, hazardous and destructive in nature. Thus there is need of a non-destructive, green and rapid method to detect adulteration. Near-Infrared spectroscopy (NIRS) is one of the most useful and robust technique which needs no minimal sample preparation and is rapid, green, and non-destructive in nature. The review covers the various non-destructive methods to detect various adulterants.

DOI: doi.org/10.15864/ajps.1302

3.Effect of loading rate on crystallization of metallic glass supercooled liquids

Author: E. Davoodi, M. Hasan, S. Rana, and G. Kuma

Abstract: Metallic glasses exhibit unique thermoplastic processing capability, which is enabled by their metastable supercooled liquid state below the crystallization temperature. The thermoplastic processing critically depends on the crystallization time (processing time window), temperature (viscosity), applied load, and strain-rate. Among these parameters, the effects of crystallization time and processing temperature have been extensively studied. However, the effects of load and loading rate have not been thoroughly investigated. In this work, we performed a systematic study of load on the supercooled liquid state of three metallic glass formers: Pt-based, Zr-based, and Pd-based. The results show that the load-response of a metallic glass supercooled liquids is strongly composition dependent. The onset temperature of crystallization decreases with increasing load in Pt-based metallic glass whereas for Zr-based and Pd-based metallic glasses the onset temperature remains unchanged. The crystallization peak time is reduced for all three metallic glasses after thermoplastic forming. The results are discussed in terms of nucleation and growth of crystallites in metallic glasses.

DOI: doi.org/10.15864/ajps.1303

4.Positive Impact of COVID19 on Indian Ecosystem: A Brief Review

Author: Agnibha Das Majumdar, Anannya Das

Abstract: In the present days, COVID-19 (SARS-Cov-2) has a serious issue and has created many challenges not only in medical research but also in human lifestyle. This virus has spread out within India also after originated from China and the rate of transmission increases day by day. India has seen over 8 lakh cases of infections and over 20,000 cases of death till 1st week of July 2020. The government of India has announced an absolute lockdown to reduce the transmission rate. The present review study indicates a comparative study on the natural activity regarding the air and the water pollution before and after this lockdown. The study has presented the literature about the variation of concentration of pollutants in the air and water. The studies have been conducted and explained the scenario of the Indian ecology.

DOI: doi.org/10.15864/ajps.1304

volume 1 issue 3