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72 articles for “Np-hardness”
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Research ArticleOpen accessIn the keywordsScheduling Algorithm to Optimize Jobs in Shop FloorT. Hemamalini, A. N. Senthilvel, S. SomasundaramProblem statement: The ratio scheduling algorithm to solve the allocation of jobs in the shop floor was proposed. The problem was to find an optimal schedule so as to minimize the maximum completion time, the sum of distinct earliness and tardiness penalties from a given common due date d. Approach: The objective of the proposed algorithm was to reduce the … …Journal of Mathematics and Statistics, Vol. 6, Issue 4 · 9 Nov 2010 · 7,327 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparative Analysis of Surface Microhardness and Antimicrobial Activity of Conventional and Bioactive Composite Materials for Dental RestorationsBruno Fongaro Dalbosco, Rafael da Silva Vanolli, Poliana Maria de Faveri Cardoso et al.This study evaluated the fluoride release capability, antimicrobial activity, and surface microhardness of bioactive composite resins, critical properties for the effectiveness and durability of dental materials in restorative procedures. Conventional and bioactive composite resins with varying viscosities were tested. Specimens of each resin type were prepared and stored in physiological saline solution for 24 hours to simulate oral conditions. Surface … …Current Research in Dentistry, Vol. 16, Issue 1 · 29 Jan 2026 · 2,813 accessesView PDFCite
Review ArticleOpen accessIn the abstractA Comprehensive Review of Post-Quantum Cryptography AlgorithmsSamandeep Kaur, Jaswinder SinghThe development of quantum computing has been rapid, and an existential threat to computational hardness assumptions that underlie today's public-key cryptography has been encountered. This manuscript is a complete and thoroughly organized review of Post-Quantum Cryptography (PQC), discussing the mathematical concepts, complexity, and mechanisms of the algorithms that underpin quantum-safe security infrastructures. Rather than the principles of quantum mechanics, the … …Journal of Computer Science, Vol. 22, Issue 9 · 25 Sep 2026 · 730 accessesView PDFCite
Research ArticleOpen accessIn the abstractEffect of Carrageenan on the Quality of Purple Sweet Potato Frozen Dough and Steamed BunsQiu-Yu Wang, Zhenxing Tang, Lei Wu et al.In order to enhance the stability of purple sweet potato steamed dough and the quality of resulting steamed buns, the influence of carrageenan conditions (0%, 0.5%, 1.0%, 1.5%, 2.0%, mass fraction) on the dough’s moisture distribution, freezable water content, rheological properties, microstructure, and on the specific volumes, water activity, texture, and color quality of steamed buns were studied. Adding carrageenan … …American Journal of Biochemistry and Biotechnology, Vol. 22, Issue 1 · 7 Apr 2026 · 1,583 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Genetic Potential of Spring Durum Wheat Grain Quality in the North of KazakhstanS. M. Dashkevich, M. U. Utebayev, O. O. Kradetskaya et al.The paper presents information about the cultivation of spring durum wheat in the conditions of Northern Kazakhstan. Methods for assessing the quality of grain and semolina in the breeding process are shown: SDS sedimentation, protein content according to Kjeldahl, content, and index of gluten using the Glutomatic 2200 system, vitreousness, hardness SKCS 4100, content of carotenoid pigments, measurements of the … …OnLine Journal of Biological Sciences, Vol. 22, Issue 3 · 2 Sep 2022 · 6,093 accessesView PDFCite
Research ArticleOpen accessIn the abstractComparison of Fumigation and Immersion of Essential Oils on Quality and Physiology of Fresh Shiitake Mushrooms (Lentinus edodes)Yanjie Li, Yanxin Wang, Shudong Ding et al.The effects of different essential oils with fumigation or immersion on sensory and physiological quality of fresh shiitake mushrooms were evaluated during the storage. Shiitake mushrooms were treated with essential oils (grapefruit essential oil, rosemary essential oil, cinnamon essential oil) by fumigation and immersion respectively. The surface color, browning degree, sensory evaluation, hardness, soluble protein content, total phenolic content and … …American Journal of Biochemistry and Biotechnology, Vol. 18, Issue 1 · 10 Feb 2022 · 6,060 accessesView PDFCite
Research ArticleOpen accessIn the abstractWater Characteristics Assessment, Bioaccumulation and Health Risk Evaluation of Possible Ingestion of Toxic and Essential Metals in Chromidotilapia guntheri Sourced from Ada River, West AfricaTunde Ohiokhioya Thaddeus Imoobe, Eugene Iragboghie Okhakhu, Osikemekha Anthony AnaniThe water ecosystem has been acclaimed to be polluted with various chemicals that may pose possible risks to the biota therein and affect the end consumers who ingest them via the food chain system. This study evaluates the water characteristics, bioaccumulation and non-carcinogenic risk potentials in the ingestion of toxic metals like (Cu, Fe, Zn, Mn and Pb) in Chromidotilapia … …OnLine Journal of Biological Sciences, Vol. 24, Issue 3 · 18 Mar 2024 · 4,774 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Influence of Various Combinations of Aging and Freezing/Defrosting Modes on the Quality Indicators of Saanen Goat MeatUrishbay Chomanov, Gulmira Kenenbay, Alibek Tursynov et al.The paper evaluates the effect of various combinations of aging and freezing/defrosting on the water-holding capacity (drip loss, purge loss, and cook loss) and tenderness of four types of goat meat muscles (M. longissimus dorsi, M. latisimus dorsi, M. Semimembranosus, M. gluteobiceps). Samples obtained from 35 goat carcasses after five weeks of storage under different conditions were studied: (1) Aging … …OnLine Journal of Biological Sciences, Vol. 23, Issue 4 · 24 Aug 2023 · 5,054 accessesView PDFCite
Research ArticleOpen accessIn the abstractHardening Effects of In-Situ Aging for a Laser Welded Maraging SteelMilton Sergio Fernandes de Lima, Rafael Humberto de Mota Siqueira, Sheila Medeiros de Carvalho, Antonio Jorge AbdallaMaraging steels are ultra-high strength alloys which have been successfully laser welded to obtain structural components. For most of the applications these steels are in an aged state to attain tensile strength up to 1.5 GPa, although welding induces local softening due to dissolution of precipitates. This paper aims to investigate the effect of in-situ aging of the maraging steel … …Journal of Aircraft and Spacecraft Technology, Vol. 3, Issue 1 · 12 Nov 2019 · 7,214 accessesView PDFCite
Research ArticleOpen accessIn the abstractInvestigating the Behavior of Steel Composite Shear Wall with Corrugated Plate under Lateral LoadSeyedeh Asma MirfazliJirdehiThe steel shear wall system has been considered as a structural system over the past few decades. This issue deals with wind and earthquake lateral forces due to its hardness, loading capacity and plasticity. This type of the system, with the use of external hardness resulting from the geometric shape of the waves, has better buckling strength than a hardened … …American Journal of Engineering and Applied Sciences, Vol. 11, Issue 3 · 14 Jul 2018 · 7,906 accessesView PDFCite