| 1 |
Author(s):
Mohamed Krichi, Mhamed Fannakh, Tarik Raffak, Abdullah M. Noman, Abderrahmane Smaali.
Country:
Morocco
Research Area:
Embedded Systems Engineering
Page No:
1-10 |
Comparative Analysis of Battery Performance for Electric Micromobility BLDC MotorsAbstract
This paper presents a comprehensive comparative analysis of battery technologies for electric micromobil ity (EMM) applications, specifically in powering Brushless DC (BLDC) motors. The study evaluates the performance of four key battery types Lead-Acid (Pb-Acid), Nickel-Cadmium (Ni-Cd), Nickel-Metal Hy dride (NiMH), and Lithium-Ion (Li-ion) across a range of critical performance metrics, including response time, overshoot, RMS speed, settling time, speed stability, and energy efficiency. By simulating and testing these batteries the research provides a detailed assessment of their suitability for powering electric scoot ers, e-bikes, and other micromobility vehicles. The findings highlight that Lithium-Ion batteries outperform the other technologies, offering superior speed stability, rapid response, minimal voltage fluctuations, and consistent power delivery |
| 2 |
Author(s):
Kavita Prakash Patil.
Country:
India
Research Area:
Nanotechnology
Page No:
11-18 |
Electrospinning Techniques For The Development Of Heavy Metal Removal Membranes: Principle, PropertiesAbstract
Water scarcity and pollution represents critical global challenges, with anthropogenic activities releasing increasing amounts of contaminants into water bodies. Traditional wastewater treatment methods often fail to effectively remove emerging contaminants, such as pharmaceuticals, organic dyes, pesticides and heavy metals from industries. Electrospun nanofibrous membranes (ENMs) have emerged as promising alternatives for water filtration, offering distinctive structural features, including high specific surface area, interconnected porous structures, and high porosity. Hence, we aim to provide a brief overview of electrospinning including the principle, methods and applications of heavy metal removal from the wastewater. |
| 3 |
Author(s):
Sonal Kumari, Dr. Manoranjan Bar, Dr. Nit Nayana.
Country:
India
Research Area:
Biotechnology
Page No:
19-27 |
Role of Microbes Involved in Industrial BiotechnologyAbstract
Microorganisms are microscopic living organisms found in diverse environments, including soil, water, air, and living hosts. While some microbes cause diseases, most play essential roles in ecosystem functioning, human health, and nutrient cycling. Their rapid growth and metabolic versatility make them valuable in biotechnology and industry. Microbes are widely used in the production of medicines, vaccines, enzymes, biofuels, and fermented foods, as well as in waste management and environmental cleanup. Advances in genetic engineering have enhanced their industrial applications, enabling sustainable production processes. Microorganisms continue to offer promising solutions for global challenges in healthcare, agriculture, energy, and environmental protection. |
| 4 |
Author(s):
Moushumi Satnami, Dr. Ashalata Devi, Dr. Bhanu Prakash Mishra.
Country:
India
Research Area:
Forestry
Page No:
28-42 |
Tree Biomass and Carbon Stock in the Orang National Park, Assam, IndiaAbstract
The present study was conducted in the Orang National Park (ONP), which is the core area of the Orang Tiger Reserve (OTR), Assam, Northeast India. The study examines biomass and carbon stock of trees in the ONP in three different forest stands, i.e., dense, open, and swampy forest stands, respectively. Altogether 45 tree species from 38 genera and 24 families were recorded in the forest. In the dense forest stand, a total of 39 species from 34 genera and 23 families were recorded, in the open forest, 33 species from 29 genera and 20 families were recorded, and in the swampy forest stand, 17 species from 15 genera and 11 families were recorded. The tree density and basal area were 1081 individual ha-1 and 82.62 m2 ha-1 in the dense forest stand, 392 individual ha-1 and 23.54 m2 ha-1 in open forest stand, and 1013 individual ha-1 and 39.43 m2ha-1 in swampy forest stand, respectively. The total tree biomass was 527.894 Mg ha-1 in dense, 160.089 Mg ha-1 in open, and 325.920 Mg ha-1 in the swampy forest stand. Similarly, the total carbon stock in dense was 263.939 Mg C ha-1, 81.160 Mg C ha-1 in open, and 162.962 Mg C ha-1 in the swampy forest stand. The present study revealed that ONP is rich in tree diversity and has high carbon stock potential. The information from this study can help to understand the status of this forest and will be helpful for biodiversity conservation, and also to enhance the management strategies in the future. |
| 5 |
Author(s):
Mrs. Archana Singh, Dr. Soma Mondal Ghorai, Dr. Manoranjan Bar.
Country:
India
Research Area:
Zoology
Page No:
43-53 |
Bisphenol A (BPA): An Endocrine Disruptor Affecting Behavior and Metamorphosis.Abstract
Contamination of environment by toxic pollutants has become commonly recognized as an environmental concern. These compounds are often present at low concentrations making them difficult to detect, while they cause ecological issues according to their nature (heavy metals, pesticides, endocrine disruptors, etc.). Therefore, ecotoxicity risks due to these chemicals can be evaluated using various protocols i.e. from cell-lines and microorganisms to plants, invertebrates and vertebrates. Most of them allow the detection of a phenotype, thus indicating a toxic effect and some of them can also highlight the modification of molecular actors involved in the toxic response. However, few animal models offer the opportunity to perform integrated study with multiple approaches, from molecular variations to physiological consequences. Drosophila melanogaster is a proven model organism in genetic and biology research in the past few years and can be considered as an emerging and suitable model to study toxicology and ecotoxicology. Drosophila has a short and well described development; reproduction and its maintenance does not require sophisticated equipment and are rather economical. Moreover, the fruit fly's development is under hormonal control making endocrine disruptors studies suitable in this model. Hence, to develop this “tool box” as an alternative model, this study was aimed to analyze the development and behavioural changes in Drosophila melanogaster to the exposure of bisphenol A (BPA). |
| 6 |
Author(s):
Bhabataran Bhakat, Dr. Manoranjan Bar.
Country:
India
Research Area:
Materials Science
Page No:
54-69 |
Composition-Controlled Structural, Optical, Photoluminescence and Magnetic Properties of NiₓMn₁₋ₓFe₂O₄ Nanoparticles Synthesized by Co-precipitationAbstract
A composition series of NiₓMn₁₋ₓFe₂O₄ nanoparticles (x = 0, 0.3, 0.5, 0.7 and 1.0) was investigated to establish how Ni²⁺ substitution modifies the coupled structural, optical and magnetic behavior of manganese ferrite. The samples were prepared by co-precipitation followed by thermal treatment, and the resulting powders were examined by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), UV-Visible spectroscopy, photoluminescence (PL) spectroscopy and vibrating sample magnetometry (VSM). XRD confirms a cubic spinel ferrite framework for all compositions, with a lattice parameter decreasing from 8.3317 Å for x = 0 to 8.3137 Å for x = 1.0, indicating lattice contraction in the Ni-rich end member. FTIR supports ferrite formation through the tetrahedral metal-oxygen vibration, which shifts from 513 to 554 cm⁻¹ with increasing Ni content. SEM reveals agglomerated quasi-spherical nanoscale domains, while EDX verifies progressive replacement of Mn by Ni and cation-normalized formulas close to AB₂O₄ stoichiometry. UV-Visible Tauc analysis gives a non-monotonic direct optical band gap, increasing to 2.200 eV at x = 0.3 and then decreasing to 1.823 eV for x = 1.0. PL spectra show near-UV/violet emission around 378-382.5 nm and weaker defect-related visible emission, indicating surface and vacancy-associated recombination. VSM results show ferrimagnetic hysteresis, with the apparent high-field moment increasing toward the Ni-rich composition. The integrated results demonstrate that Ni substitution is an effective route for tailoring multifunctional spinel ferrites for optoelectronic, magnetic, sensing and photocatalytic applications. |
