A Sustainable and Efficient IoT Approach for Fire Department Alerting System

The creation of sophisticated fire detection systems is necessary given the rising danger of fire occurrences. The system described in this abstract uses IoT components such an Arduino board, flame sensor, buzzer, SIM800L module, and SIM800L to detect fires in real time and inform users. The flame sensor is the main element of the system, and it uses infrared radiation to identify flames when they are present. The Arduino board receives the signal from the sensor and activates the alarm system when it detects a flame. A loud audible alarm is produced by the buzzer when it is linked to the Arduino board to alert residents to a potential fire threat. The system includes the SIM800L module to support distant notifications in addition to local alerts. Once a fire has been identified, the Arduino board and SIM800L module connect to send an SMS or place a call to preset emergency contacts. This makes it possible to quickly take the necessary action, even if the affected properties are unattended. The IoT device connection with the Arduino board gives the fire detection system flexibility and scalability making it reliable and sustainable. By adding more sensors or integrating with current home automation systems, it is simple to customize and expand. Real-time fire detection, remote alerting capabilities, and IoT ecosystem integration are just a few of the advantages the suggested fire detection system has over conventional fire alarm systems

A comparison of conventional and novel phytonutrient extraction techniques from various sources and their potential applications

The phytonutrient extract helps in the development and manufacturing of nutraceuticals and food additives. Some of these secondary metabolites, such as polyphenol, anthocyanins, carotenoids, flavonoids, phytosterols, terpenoids, and others, are extracted from plants. These phytonutrients provide many health benefits like prevention and treatment of a variety of diseases such as cardiovascular disease, neurological disorders, atherosclerosis, certain cancers, and diabetes. Traditional extraction methods such as Soxhlet, maceration, decoction, percolation and infusions are still used, but significant improvements can be made by using novel or greener extraction methods, including accelerated solvent extraction, microwave-assisted extraction, ultrasound-assisted extraction, supercritical fluid extraction, and enzyme-assisted extraction. Once extracted, these phytonutrients can be utilised in the cosmetic, nutraceuticals, pharmaceutical, or food industries, with the later focusing on improving food quality. This article aims to provide a comprehensive overview of the various techniques used in the extraction and isolation of phytonutrients. Additionally, this article describes the advantages, disadvantages, practical examples, and a comparative study of these processes

<span style="mso-bidi-language:HI">Studies on effect of topology on pulp and paper characteristics of <i><span style="mso-bidi-language:HI">Eucalyptus camaldulenosis</span></i> </span>

332-340The seedlings of Eucalyptus camaldulenosis of same genotype were grown at different geographical locations having distinct pre- and post-monsoon ground water levels. It is observed that as the ground water level recedes, balloon like structures known as tyloses develop, which affect the plant anatomy, physico-chemical and pulp and paper making characteristics of E. camaldulenosis. The aging of E. camaldulenosis has marked adverse impact on morphological, physico-chemical composition, pulping and black liquor characteristics along with mechanical strength properties of paper. </span

Characterization of oil extracted from wild apricot seeds kernel using submerged alcoholic fermentation and its quality characteristics

International audienceThe current study investigated the impact of Saccharomyces cerevisiae fermentation on apricot kernel oil extraction and the resulting quality characteristics of the oil. The seed kernels underwent physicochemical and antioxidant studies after being separated, gelatinized, and fermented. The results revealed 43.6 % of oil yield by fermentation. The extracted oil had a lower acid value (3.74 mg KOH/g), and peroxide value (4.25 meq/kg). The investigation of additional oil properties was included, like iodine value (100.26 mg KOH/g), saponification value (190.5 mg KOH/g), specific gravity (0.919), viscosity (4.62), moisture content (0.592 %), and refractive index (1.4836), which signifies optimum physicochemical parameters of oil. As per the FTIR data, some distinct functional groups like C-H stretch and Cdouble bondO, Cdouble bondC, CH3, OH, and R-O-R esters were found in the extracted oil. The oil's fatty acid composition, with 50.47 % saturated, 22.23 % mono-unsaturated, and 35.13 % polyunsaturated fatty acids, enhances stability, oxidative resistance, and nutritional value, justifying its favorable physicochemical properties. The DPPH radical scavenging activity of the oil showed to have good antioxidant activity. Metabolic modeling of S. cerevisiae provided information about compounds received after fermentation. Hence, it can be concluded that fermentation is a suitable approach to extract apricot seed kernel oil with beneficial properties

VHF Transhorizon Propagation Studies at Warangal

92-95Transhorizon propagation studies over Hyderabad-Warangal TV path at VHF are presented. The morning hours field strength values are greater than the evening hours values. The correlation between median field strength and initial refractivity is found to be good in general. The observed results are compared with the estimated results obtained from the models, based on different modes of propagation

Study on the antioxidant potential of Catharanthus species and its thermal stability in sunflower oil model system

AbstractThe studies analyze the efficiency of Catharanthus alba and Catharanthus roseus cultivars as a natural antioxidant measuring antioxidant potential through two methods. In the first method, antioxidant activity was estimated through the sunflower oil model system in which the Peroxide value (PV) and Thiobarbituric acid (TBA) tests were performed. While in the second method, antioxidant activity estimation is done through the assay method in which 2, 2- Diphenyl- 1-picrylhydrazyl (DPPH) radical scavenging method and ammonium thiocyanate method has been performed. The thermal stability of the leaves & flowers of Catharanthus alba and Catharanthus roseus were analyzed by mixing of powdered medicinal plant and sunflower oil. Further results indicate the higher antioxidant activity of flower Catharanthus alba as compared to flower Catharanthus roseus. Relatively among the leaves, Catharanthus roseus demonstrated slightly higher antioxidant potential than the leaves of Catharanthus alba. The antioxidant activity of Catharanthus alba (Flower)> Catharanthus roseus (Flower)> Catharanthus roseus (leaves)> Catharanthus alba (leaves) has been reported. The dehydrated powders of leaves and flowers of Catharanthus alba and Catharanthus roseus have shown good antioxidant activity at 0.5% level in sunflower oil while increase in concentration up to 1% and 1.5% does not show enhanced antioxidant activity in sunflower oil. The flowers and leaves of both cultivars of Catharanthus have shown good thermal stability when heated at 80 °C continuously for 24 h considering all the parameters with statistical significance of (p ≤ 0.001)