Freeware: Acid

	CurTiPot Acid-Base pH and Titration  License: Freeware
	A pH Calculator, a Virtual Titrator, a Real Titration Data Analyzer, a Distribution Diagram Generator - that's CurTiPot, the all-in-one freeware to learn, teach and work with chemical equilibrium of acids, bases, salts and buffers at home, classroom, interactive "dry lab" or research laboratory. Features of this powerful suite of MS Excel spreadsheets embrace: - pH calculation of any aqueous solution of strong and weak acids, bases, salts, buffers and mixtures of up to 7 polyprotic systems (>40 species), with activity coefficient estimation; - Simulation and overlay of acid-base titration curves of any complexity, with or without random errors in pH and/or volume. Valuable for teaching, generation of unlimited titration exercises and evaluation of the feasibility and accuracy of new titrations. - Analysis of pH vs. volume data from simulated and real potentiometric titration curves by two methods: i) graphical representation of curves, assisted by cubic splines interpolation and smoothing of derivative curves, for accurate evaluation of inflections (end-points); ii) determination of concentrations and refinement of pKa values by multiple nonlinear regression (based on the Solver supplement of Excel), essential for difficult titrations with undefined inflections, e.g., acid rain. - Generation of protonation curves and distribution diagrams of equilibrium species of acids and bases at equilibrium as a function of pH or of added volume of titrant. - Expandable database with pKa values of 250 acids and bases. Simply unzip the curtipot_.xls file, open it with Microsoft Excel (at medium security level), activate macros and start learning, working and teaching. No install/uninstall required, all macros are removed when closing file. The software is completely free for educational and non-commercial use. Author: Ivano G. R. Gutz| Date: 11-01-2007 | Size: 542 KB
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	ScimoreDB Embedded, Server and Distributed  License: Freeware
	Royalty free fully featured SQL database engine with nearly 1 million installations worldwide. Use as embedded, like MS access, or as large clustered, like Oracle/DB2, distributed database. ScimoreDB embedded, server or distributed databases has been optimized for MS Windows and .NET to deliver optimal database performance. Database top features: * GUI for database administration and querying. * Client interfaces: .NET data provider, C++ libraries, COM object. * SQL language * SQL procedures with T-SQL syntax * Optimized for SMP * Asynchronious IO for disk and network * Internal scheduler with priority queues - optimizing control of query execution * Multiversion Concurrency Control - writers never block readers * Table level and row level locking * ACID Transactions * Group commit * Optional "In memory Transactions" * Transactional DDL. Create/alter/drop comands are transactional * Configurable maximum memory usage * Primary key/foreign key/referential integrity/cascade delete * Blob size limited to 16TB * Text blob compression * Real-time deadlock detection * Nested sub-queries * Communicate with database using either shared memory, named pipes, and TCP/IP * Up to 65.000 concurrent connections * Side-by-side installations. Many installations of engine on same machine * Maximum database size 2^64 bytes = 16.777.216 Terabytes - imagine a backup/restore * Free text indexing and searching * Hot backup * Defragmentation/shrinking tables * Query optimizer using cost based strategy with heuristical hints * Distributed query optimizer * Flexible monitoring capabilities using SQL commands * Working with distributed, it like working with a single database instance Author: Scimore UAB| Date: 0-31-2008 | Size: 4944 KB
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	Vitamin Test  License: Freeware
	Vitamin Test - Vitamins are involved in different functions and processes in organism. Few of them have very important protective roles: vitamins A, C, E (antioxydants), vitamin D and folic acid (the most important vitamin for women who would like to have children and for persons with high homocysteine level.) Trace elements, zinc and selenium, have vital roles in immune system strengthening. Omega-3 fatty acids are very good protection against cardiovascular and hearth diseases. The most important secondary herbal ingredient are carotene and lycopene. Many recent studies show lycopene's crucial anti prostate cancer properties and effects. This user friendly Windows OS based application is created to help people to look toward and check their current health status. The results of this test will show you the deficiency of needed Vitamins and Minerals and this could be good cross-reference for further regular nutrition. This software is dedicated to everyone and it is supported by the team of well-known and qualified phisicians and nutritionists. Author: LifeForm Inc.| Date: 12-05-2005 | Size: 310 KB
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