9,812 research outputs found

    On Modulo AG-groupoids

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    A groupoid G is called an AG-groupoid if it satisfies the left invertive law: (ab)c = (cb)a. An AG-group G, is an AG-groupoid with left identity e \in G (that is, ea = a for all a \in G) and for all a \in G there exists a' \in G such that a.a' = a'.a = e. In this article we introduce the concept of AG-groupoids (mod n) and AG-group (mod n) using Vasantha's constructions [1]. This enables us to prove that AG-groupoids (mod n) and AG-groups (mod n) exist for every integer n \geq 3. We also give some nice characterizations of some classes of AG-groupoids in terms of AG-groupoids (mod n).Comment: 10 page

    A Review on Energy Consumption Optimization Techniques in IoT Based Smart Building Environments

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    In recent years, due to the unnecessary wastage of electrical energy in residential buildings, the requirement of energy optimization and user comfort has gained vital importance. In the literature, various techniques have been proposed addressing the energy optimization problem. The goal of each technique was to maintain a balance between user comfort and energy requirements such that the user can achieve the desired comfort level with the minimum amount of energy consumption. Researchers have addressed the issue with the help of different optimization algorithms and variations in the parameters to reduce energy consumption. To the best of our knowledge, this problem is not solved yet due to its challenging nature. The gap in the literature is due to the advancements in the technology and drawbacks of the optimization algorithms and the introduction of different new optimization algorithms. Further, many newly proposed optimization algorithms which have produced better accuracy on the benchmark instances but have not been applied yet for the optimization of energy consumption in smart homes. In this paper, we have carried out a detailed literature review of the techniques used for the optimization of energy consumption and scheduling in smart homes. The detailed discussion has been carried out on different factors contributing towards thermal comfort, visual comfort, and air quality comfort. We have also reviewed the fog and edge computing techniques used in smart homes

    CONSUMERS’ ATTITUDES TOWARDS NON-LOCAL PRODUCTS: A CASE OF PAKISTAN

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    This study investigated the attitudes of Pakistani consumers towards non local (imported) products. Country of Origin (COO) effect was the main thing to find out. A survey questionnaire was distributed among 200 respondents in the twin cities Islamabad and Rawalpindi. The questionnaire contained the measure of, quality of the products, social status, and unavailability of local substitutes; admiration for EDCs life style, consumers’ ethnocentrism and attitudes towards non local products. Nine hypotheses were designed and tested by Pearson correlation and simple regression analysis by using SPSS 15 version. Analysis of the data showed that consumers in the developing countries like Pakistan considered the imported products as of high value and they feel a pride when having the products of the developed countries. The moderating impact of admiration for EDCs life style and consumers’ ethnocentrism was also confirmed by this study. The research findings suggest for the MNCs to go for a joint venture with a local firm or set up a foreign subsidiary to control the effect of ethnocentricity which is extremely important to cope with. Local producers and marketers should focus on the quality of their products to compete with multinational corporations in their domestic markets and survive with a rising head. This research showed that if the imported products are of high quality, more reliable and of reasonable price then ethnocentrism can not become hostile to them
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