Background: In accordance with the circular economy principles (reduce, reuse and recycle), the company Ekstera d.o.o. started to develop a unified process with which it introduced two parallel work processes. In addition to the company's primary production activity, where "waste," which should be handed over to authorized waste collectors as hazardous waste is generated, parallel production was introduced. Using "waste," the company thus made raw material suitable for immediate use as input material for steelworks and foundries. Methods: A bigger problem than the technical development of the final product (Nickel alloy powder briquettes), which lasted less than two years, proved to be the legal inclusion of this procedure due to strict and vague environmental regulations and conditions arising from them. Through experiments, we led the process of recycling Nickel.........

Keywords: Nickel alloy, dust powder, recycling, carbon footprint reduction

[1]. European Commissionv (2007). COM (2007) 59: Communication from the Commission to the Council and the European Parliament on the Interpretative Communication on waste and by-products
[2]. Europian Commission (2007). REACH legal text. European Parliament and Council Regulation (EC) No 1907/2006 (Corrigendum 29 May 2007)
[3]. EoW: Regulation (EU) št.333/2011
[4]. Europian Parliament, (2021). Available at: https://www.europarl.europa.eu/news/sl/headlines/economy/20151201STO05603/krozno-gospodarstvo-definicija-pomen-in-prednosti
[5]. Griemes et al., 2008. Report on the Environmental Benefits of Recycling, Imperial College London.

In order to answer the research questions, it is doubtful that researcher should be able to collect data from all cases. Thus, there is a need to select a sample. This paper presents the steps to go through to conduct sampling. Furthermore, as there are different types of sampling methods, researcher needs to understand the differences to select the proper sampling method for the research. This paper also present different types of sampling techniques and methods. "Hypothesis testing is an integral and the most important part of the Research Methodology". In this paper, we introduce the overview of hypothesis and types of hypothesis. Researcher need the perfect method to reach towards the best conclusion so we also discuss the hypothesis testing steps, and various tools used for hypothesis testing so that researcher can take a perfect decision

Keywords: Sampling, Sampling techniques, Hypothesis, Hypothesis testing, Hypothesis testing tools

[1]. Joginder Kaur," Techniques Used in Hypothesis Testing in Research Methodology – A Review", International Journal of Science and Research, Volume 4 Issue 5, May 2015.
[2]. KOLAWOLE, Yaoundé O," HYPOTHESES AND HYPOTHESIS TESTING", 30th June, 2017
[3]. Frank Emmert-Streib and Matthias Dehmer," Understanding Statistical Hypothesis Testing: The Logic of Statistical Inference", 12 August 2019.
[4]. M. Shafiqur Rahman," TEACHING HYPOTHESIS TEST IN AN EASY WAY", International Journal of Business, Economics and Management, December 2015.
[5]. Ashok Kumar," HYPOTHESIS TESTING IN MEDICAL RESEARCH: A KEY STATISTICALAPPLICATION", Journal of Universal College of Medical Sciences (2015) Vol.03 No.02 Issue 10.

Catamarans and trimarans may have problems in road transportation or marina berthing because of their large width, therefore several folding mechanisms have been designed to reduce width. In this paper new vertical folding mechanisms are presented which are simpler and more stable than many existing. In one version the outriggers are fixed to the connecting beams of a trimaran and rotate during the folding process, in the other version the outriggers are hinged to the connecting beams and remain virtually upright. In one variant 2 struts are connected to 2 hinges on top of a trimaran main hull - in the other the struts are connected to one common hinge. The other ends of the struts are pivotally hinged to connecting beams, which rotate around a common central hinge. In all these assemblies.........

Keywords: folding mechanism, catamaran, trimaran, multihull

[1]. S. Stange, Patent No. DE102005034981B3, granted 22.11.2006, Mehrrumpfwasserfahrzeuge variabler Breite mit 2 bewohnbaren Schwimmern [Multihull Crafts of Variable Width with 2 Habitable Floats] [2] P. G. Carrieri, Patent No. WO2006/013591, granted 09.02.2006, Multihull Boat with Variable Width [3] I: Lindsay, Patent No. US3937166A, granted 10.02.1976, Float Connection Assemblies for Multi-Hulled Boata [4] I. Farrier, Patent No. US5038697A, granted 15.08.1991, Variable Beam Float Connection Assemblies for Trimarans

The increasing number of vehicles due to the proportional increasing order of population day by day and a continuous development of modern society is a major concern in rising cities in rapidly developing countries like India .so it is very necessary to monitor traffic volume and also the quality of travelling supply termed as the level of service (LOS). Analysis of traffic volume can be also done by various methods but in this project traffic analysis is done by level of service method .By studying the traffic analysis by LOS from A to F we can determine how traffic is varied from time to time in a highly congested road in a different traffic flow condition. In traffic analysis certain types of mixed vehicles is calculated by passenger car unit and it plays very important role also peak hour factor plays important role in traffic analysis by LOS methods.........

Keywords: Passenger Car Unit(PCU) ,Level of service(LOS) , Traffic Volume , Peak hour factor (PHF).

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Anthropogenic Greenhouse Gas Emissions and Energy Security are one of the major problems faced by modern era. There are many factors which are the source of their production and accelerate their intensity of damage, among which the major one is high reliance on fossil fuels for our day-to-day activities. Renewable Energy although has started to share a considerable portion of energy production and utilization; but still there is need to focus on new and improved sources of Renewable Energy for future supplementation in terms of energy needs. In this context, Microalgae have emerged as a promising source as a sustainable and secured energy source which offers a additional perk of fast recovery. This article reviews the state-of-art of algal biomass production and conversion into various economically important fuels, which can be used.

Keywords: Algal biomass production, Biofuels, Renewable Energy, Energy Security.

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This paper presents an evaluation of performances of rice cooking system using Intelligent Controller that is Fuzzy Logic Controller (FLC) to meet the special requirements and some limitations of the rice cooking system. A new inference scheme is given to estimate the amount of rice and water to be used, and the temperature will be controlled according to the amount of rice and the time while cooking. The FLC system is designed by using MATLAB Fuzzy Logic Toolbox. The results obtained from the simulation software is given in this paper. This study proposes an automatic rice cooker temperature controller, which uses the difference between the amount of time and quantity of rice inside the cooker to determine the required temperature. The difference is assumed to affect the heating element in order to achieve.........

Keywords: Fuzzy Logic, Rice Controller, MATLAB

[1]. Mohd Shahrieel Mohd Aras, Eric Chee Sai Hoo, Syed Najib Bin Syed Salim, Intan Azmira binti Wan Abd Razak, Mohd Hendra bin Hairi, "Comparison of Fuzzy Control Rules using MATLAB Toolboxand Simulink for DC Induction Motor-Speed Control", International Conference of Soft Computing and Pattern Recognition, 2009
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This paper attempts to create data bank on drying mass constants of some selected vegetables. This is to facilitate the prediction of the mass of these materials with respect to any desired moisture content during drying; by applying, model equation developed based on basic drying principle. In this study, freshly harvested vegetables namely spear grass; Gnetum africanum and carrot were cut into three sizes: small, medium and large size. Each sample was oven dried and its mass weighed at an hourly interval until constant mass was obtained. Data were generated; and for each size range and bulk sample, graph plots of moisture content (MC) against drying time, rate of drying versus drying time were carried out coupled with plot of moisture content against the ratio of initial mass to mass at any given time (i.e., M0/Mt) during drying. Results showed, the drying curve resembled that of an ideal drying curve; and so the generated data is reasonably valid for use in obtaining the dry mass constants. The values of drying mass constants were 0.0347 ± 0.013, 0.3098 ± 0.0138 and 0.1092 ± 0.0122, respectively for spear grass, Gnetum africanum and carrot.

Keywords: Drying mass constant, moisture content, spear grass, Gnetum africanum, carrot.

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nuts during drying. Internatonal Journal of Engineering Science Invention, 3(2), 2014, 19-23.