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384 results for “pH indicator”

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Research ArticleOpen accessIn the keywordsSupporting Tools to Simplify the Navigation Process over the WebChabane Khentout, Mahieddine Djoudi, Lamri DouidiWe Navigation through the Web has problems of positioning and space-temporal reference marks. Therefore, it’s necessary to design some computer-aided tools to help the user to position himself in space and time during a navigation session. The user is provided with a map of visited sites, thus giving an explicit representation of virtual space. Various levels of visualization are set … …Journal of Computer Science, Vol. 2, Issue 3 · 31 Mar 2006 · 6,675 accessesView PDFCite
Research ArticleOpen accessIn the keywordsOn Partial Linearization of Byte Substitution Transformation of Rijndael-The AESY. Talwar, C. E.V. Madhavan, Navin RajpalRijndael-The AES[1-3] is 128-bit block cipher based on an elegant algebraic structure over F28. This cipher employs a simple approach to its substitution, permutation (SP) operations. We take a close look at its internals; the byte substitution transformation function is the only non-linear function in Rijndael - The AES. This transformation comprises of two steps operating on each byte. Here … …Journal of Computer Science, Vol. 2, Issue 1 · 31 Jan 2006 · 6,867 accessesView PDFCite
Research ArticleOpen accessIn the keywordsMicrobiological Analysis of Tilapia Fillet Stored Under Refrigerated ConditionsItzel Yashita Prado-Toledo, Katia Nayely Ramos-Santoyo, Martha Lorena Guzmán-Robles, Alejandro De Jesús Cortés-SánchezFish is a food susceptible to deterioration and contamination by microorganisms through the food chain, affecting its quality and safety. Fish is subjected to various processing and preservation methods in order to maintain availability, quality and safety for a longer time. The objective of the study was the microbiological analysis of tilapia fillets in refrigeration for 12 days. The tilapia … …OnLine Journal of Biological Sciences, Vol. 22, Issue 1 · 10 Mar 2022 · 5,948 accessesView PDFCite
Research ArticleOpen accessIn the keywordsHeterogeneities and Intra Sand-Body Compartmentalization in Late Oligocene Delta-Front Deposit, Niger Delta, NigeriaRaphael Oaikhena Oyanyan, Michael Ndubuisi OtiThis paper presents the study of the heterogeneity in lithofacies, porosity, permeability, mineral grain density, pore-throats sizes and hydraulic rock types and the intra sand-body compartmentalization in cored delta-front deposit of Greater Ughelli depobelt of Niger Delta. Sedimentological study of core samples results in the identification of nine lithofacies and the interpretation of environments of deposition as mainly proximal and … …Current Research in Geoscience, Vol. 6, Issue 1 · 28 Mar 2016 · 8,096 accessesView PDFCite
Research ArticleOpen accessIn the keywordsRisk Analysis in Handling and Storage of Petroleum ProductsGuarascio Massimo, Lombardi Mara, Massi FedericaIncrease in productivity and technological system innovation have resulted a boost in the specific activity of use and handling petroleum Products the chemical and physical properties of petroleum products represent an advantage when they are used for its own uses, but may result in accidental scenarios which can cause serious damage to people and to environment. The quantitative risk analysis … …American Journal of Applied Sciences, Vol. 10, Issue 9 · 24 Aug 2013 · 7,158 accessesView PDFCite
Research ArticleOpen accessIn the keywordsComparative Analysis of Neural Network Models for Predicting EUR/USD Direction: An Empirical StudyEl Badaoui Mohamed, Raouyane Brahim, El Moumen Samira, Bellafkih MostafaThis paper presents a rigorous comparative analysis of six feedforward neural network models for predicting the directional movement of the EUR/USD currency pair. The evaluated models include the Learning Vector Quantization, Cascade Neural Network, Feedforward Neural Network, Single Layer Perceptron, Multi-Layer Perceptron, and Radial Basis Function network. Utilizing daily historical data from April 2009 to May 2024, each model was … …Journal of Computer Science, Vol. 22, Issue 1 · 3 Feb 2026 · 2,340 accessesView PDFCite
Research ArticleOpen accessIn the keywordsInfluence of Varietal Characteristics and Planting Schemes of Remontant Raspberries on their ProductivityLyazzat Zhailibayeva, Sergey Oleichenko, Yerlan Dutbayev et al.The red raspberry (Rubus idaeus L.) is a member of the Rosaceae family. The production of raspberries has increased rapidly worldwide. In recent years, about 300 ha of remontant raspberry varieties have been planted in the Almaty region, Kazakhstan. These varieties are technologically easier to grow compared to traditional varieties because they bear fruit on annual shoots and do not … …OnLine Journal of Biological Sciences, Vol. 24, Issue 2 · 29 Dec 2023 · 5,457 accessesView PDFCite
Research ArticleOpen accessIn the keywordsLocalization of Some Medicinal Plants in the Ile Delta on the Southern Macrosurface of the Zhetysu Alatau (Kazakhstan)Bedel Kaliyev, Gulnar Sitpayeva et al.In the article, the floral composition of the vicinity of the Ile River on the southern macrosurface of Zhetysu Alatau is determined and a brief description of the endemic species is given. Through the examination and evaluation of expedition data, along with comprehensive research and literature analysis, the study successfully identified species that have experienced a reduction in their distribution … …OnLine Journal of Biological Sciences, Vol. 23, Issue 4 · 18 Aug 2023 · 5,520 accessesView PDFCite
Research ArticleOpen accessIn the keywordsSaudi Women's Rights in Civil Public Service SystemDr. Haifa Abdul Rahman Saleh Bin Shalhoub, Dr. Huda Ahmed Al-Khayyal, Dr. Hassa Abdulrahman Al Sanndh, Dr. Hind Fayia Al-ShahraniThis paper aims at understanding the reality of Saudi women's rights in Civil Public service system. In doing so, it aims to examine the planning indicators aimed at increasing awareness about Saudi women’s rights. In order to achieve the objectives of the study, the research uses statistical measures-Mean, Standard Deviation and Independent Sample T-test alongside other scientific test techniques such … …Journal of Social Sciences, Vol. 13, Issue 4 · 16 Nov 2017 · 8,216 accessesView PDFCite
Review ArticleOpen accessIn the keywordsThe Status of Pollutants in the Three Gorges Reservoir Area, China and its Ecological Health AssessmentChun-Jiao Lu, Dan Luo, Muhammad Junaid et al.The Three Gorges Reservoir Area (TGRA) stretches along the Yangtze River from Jiangjin District, Chongqing to Yichang, Hubei in China. Since TGRA is the main source of drinking water and fresh fishery in China for millions of people, both researchers and the government have concerns for environmental pollution and ecological security in the TGRA. This review highlighted the status and … …American Journal of Environmental Sciences, Vol. 12, Issue 5 · 28 Sep 2016 · 7,932 accessesView PDFCite