Amwoga Khalwale
An image function f(x,y) must be digitized both spatially and in amplitude in order to become suitable for digital processing. Typically, a frame grabber or digitizer is used to sample and quantize the analogue video signal. Therefore, in order to create an image which is digital, we need to convert continuous data into digital form. … Read more
Heartwood and Sapwood are terms used to describe the two primary categories that depict the naturally occurring wood of a tree. HEARTWOOD Heartwood also referred to as Duramen, is the older, harder nonliving central wood of trees that is usually darker, denser, less permeable and more durable than the surrounding sapwood. Heartwood is mechanically strong … Read more
Virtual Memory Virtual memory is a memory management capability of an operating system (OS) that uses hardware and software to allow a computer to compensate for physical memory shortages by temporarily transferring data from random access memory (RAM) to disk storage. In other words, it is the separation of logical memory from physical memory. This … Read more
Gram Negative Bacteria & Gram Positive Bacteria The “gram-positive” and “gram negative” are terms used by microbiologists to classify bacteria. The classification is based on the bacterium’s chemical and physical cell wall properties. For proper determination as to weather a bacteria is gram-positive or gram-negative, microbiologist usually performs a special type of staining technique referred … Read more
Bluetooth is a wireless connection standard that allows for exchange of data over short distances. It’s named after the 10th century Danish King Harald Bluetooth, who united Denmark’s tribes into a single kingdom. A new version of Bluetooth standard means various improvements, but only when used with compatible peripherals. Before Bluetooth version 4.2 in 2014, … Read more
The polarity of the electric current created by the welding machine, which runs through the electrode, is either AC or DC. These are the two types of polarity and the welding quality and efficiency depend significantly on the type of current used. AC Welding AC stands for Alternating Current. In an AC electric circuit, the … Read more
Accurate measurement and calculation of areas are fundamental tasks in surveying, as they form the foundation for designing structures and understanding land features. The Trapezoidal Rule and Simpson’s Rule are two well-established techniques commonly used for calculating areas based on discrete data points. In other words, both methods are based on numerical integration techniques and … Read more
In conventional computers, translation of the program or the source code into object/machine code is done by various methods which include assembler, compiler and interpreter. Below are the underlying details of how they differ from one another. What You Need To Know About Assembler An assembler is a program that takes basic computer instruction or … Read more
Definition Of Base And Acid According To Different Theories According to Lewis theory of acid-base reaction, a base is any substance that can donate a pair of nonbonding electrons to form a new bond. Lewis theory also defines an acid as any substance that can accept a pair of nonbonding electrons to form a new … Read more
What Is Equinox? The word ‘’equinox’’ comes from a Latin word ‘’aequus’’ meaning equal and ‘’nox’’ meaning night. Therefore, the equinox is the time in the year where the day and night are equal. Both the north and south hemisphere have same length of day and night. The equinox happens twice a year. It happens … Read more