Applied Sciences Research Periodicals https://hspublishing.org/ASRP <p><strong><em>Applied Sciences Research Periodicals (ASRP)</em></strong> is an open access and peer-reviewed international journal. It focuses on using scientific knowledge and principles to solve practical problems in real-world settings.</p> <p>ASRP covers multidisciplinary fields that encompasse a broad range of subjects, including engineering, technology, medicine, and agriculture, among others. The goal is to create innovative solutions to practical problems, improve existing technologies, and optimize processes to increase efficiency and productivity. Researcher in this field is aimed at working in collaboration with industry, government, and other stakeholders to translate scientific knowledge into practical applications that benefit society.</p> en-US office@headstartnetwork.org (Faruk Soban) asrp@hspublishing.org (Andrew Carr) Sun, 05 Jan 2025 09:12:39 +0000 OJS 3.3.0.13 http://blogs.law.harvard.edu/tech/rss 60 Divide-and-Conquer Strategy with LU Factorization for Inverting Symmetric Positive Definite Matrices https://hspublishing.org/ASRP/article/view/727 <p>We studied the solution of a system of equations <em>Ax=b</em> with singular and nearly singular, symmetric positive definite coefficient matrix A. Our algorithm based on, the Divide and Conquer strategy leading to the Divide-and-Conquer Algorithm (D&amp;C algorithm) with, LU Factorization algorithm. The LU Factorization was used to convert the matrix into a product of the form LU, where <em>L </em>is a lower triangular matrix and <em>U </em>is upper triangular matrix. The algorithm was been implemented on MATLAB and simulated as a user-subroutine. The user-subroutine is considering MATLAB features for reducing the round-off error especially for sensitive systems. Numerical examples was given of a non- singular matrix and another for ill-conditioned matrix. The effect of round-off error was analyzed. We compared results with previous ones, where LU factorization is used.</p> Abdel Radi Abdel Rahman Abdel Gadir Abdel Rahman, Shady Seed EL Okuer Copyright (c) 2025 Abdel Radi Abdel Rahman Abdel Gadir Abdel Rahman, Shady Seed EL Okuer http://creativecommons.org/licenses/by/4.0 https://hspublishing.org/ASRP/article/view/727 Sat, 11 Jan 2025 00:00:00 +0000 Case Study on the Establishment of a Local Circular Economy Loop through Recycling School Uniforms in a Japanese Countryside https://hspublishing.org/ASRP/article/view/769 <p>The fashion industry is known for its significant contribution to global environmental deterioration. The production of clothes consumes tremendous amounts of water and energy, and clothes, usually discarded within a short time, end up in landfill sites and generate secondary environmental pollution. In Japan, the school uniform culture continues to be widely followed and does not meet the global consensus on circular economies. Used uniforms are tucked away at the back of a wardrobe or discarded, although they remain in perfectly good condition. This is a case study of a uniform recycling loop first established by a university and subsequently transferred to a private company. Internet searches and questionnaire surveys were conducted to explore common perceptions of uniforms. In Japan, uniform costs are at least 700 USD when enrolling in public junior high schools. The findings showed that the parents of students strongly supported the uniform recycling project and were willing to pay up to 30% of the original price of uniforms if they were in a good condition.</p> Ryoko Sekifuji, Chieu Le Van, Masafumi Tateda Copyright (c) 2025 Ryoko Sekifuji, Chieu Le Van, Masafumi Tateda http://creativecommons.org/licenses/by/4.0 https://hspublishing.org/ASRP/article/view/769 Sun, 05 Jan 2025 00:00:00 +0000 Palliative Care for Cancer https://hspublishing.org/ASRP/article/view/771 <p>There are various studies on the anticancer effect of linoleic acid which also has soothing and hydrating effects. My idea is to create a substance with the right proportions of linoleic acid and biokeratin extracted from chicken feathers. In particular, to dissolve a right percentage of biokeratin in linoleic acid and create a substance to be oxidized and/or reduced using the equipment described in a scientific article of mine in order to hypothesize as a final substance a vaccine and a cure for tumors to be associated with chemotherapy. My hypothesis of a vaccine and/or cure for tumors is proposed starting from biological agents such as linoleic acid and biokeratin which, mixed together in the right proportions and subjected to an oxidation and/or reduction process as described in my article, could give life to biological vaccines and biological supplements to be associated with chemotherapy in cancer patients.</p> Giovanna D’Alonzo Copyright (c) 2025 Giovanna D’Alonzo http://creativecommons.org/licenses/by/4.0 https://hspublishing.org/ASRP/article/view/771 Sun, 05 Jan 2025 00:00:00 +0000