Dynamo: A Highly Available Key-Value Store
Data Structure and Storage
Dynamo partitions data among nodes using consistent hashing, forming a circular space or ring. Each node has a position, and data items are stored in the closest node clockwise based on their key’s hash value. Replicas are stored in the next (r) nodes clockwise. Virtual nodes ensure uniform load distribution.
CAP Theorem and Dynamo
Dynamo prioritizes Availability and Partition tolerance, providing eventual consistency. Data replication ensures availability during failures,
Read MoreManufacturing Processes in Food, Automobile, and Stainless Steel Sectors
PROCESS PLANTS
PROCESS PLANTS: type of factory that transforms materials in mass. The main process flows are represented by diagrams without details. For represent process units and instrumentation use more detailed diagrams indicating the main and secondary flows, the control loops and apparatus with symbols and legends.
RAW MATERIALS 1. SOLVENT: solubilizes the base resin until it is viscous and evaporates after drying. Its power varies with temperature. Influences shine, texture, and adhesion.
Read MoreEnumarate the content of marketing plan and the processes the company should use of moving its customer from awareness of it’s product up to purchase to satisfaction
E-
commerce
Business Strategiesbusiness model
a set of planned activities designed to result in a profit in a marketplace
business plan
a document that describes a firm’s business model
e-commerce business model
a business model that aims to use and leverage the unique qualities of the Internet, the Web, and the mobile platform
value proposition
defines how a company’s product or service fulfills the needs of customers
he opening case on Canva illustrates the process of turning a good busi- ness idea
Sensors and Actuators: A Comprehensive Guide
*Temp* *1.Bimetallic strips:* 1. Bimetallic strips are composed of two different metal strips that are bonded together. 2. These strips have different coefficients of thermal expansion, which means they expand and contract at different rates when subjected to temperature changes. 3. As the temperature changes, the bimetallic strip bends due to the unequal expansion of the two metals. 4. This bending motion can be used to operate mechanical devices or to indicate temperature changes. 5. Bimetallic
Read MoreUnderstanding Energy, Power, and Sustainability
What is energy?
Nobody knows. – Richard Feynman
It enables us to work. Natural processes cannot create or destroy energy. It can change forms.
Forms of energy – chemical, nuclear, mechanical, radiant, electrical, thermal
What is power? – The rate of energy output or consumption.
Unit of energy – Joules, unit of power – joules per second = watt, unit of energy – watt-hours
1 kiloWatt (kW) = 1000 Watt, 1 MegaWatt (MW) = 1000 kW, 1 GigaWatt (GW) = 1000 MW, 1 TeraWatt (TW) = 1000 GW
What is sustainability?
Environmental Impact and Software Sustainability in IT
Environmental impact:
- GHG emission: Computer systems consume huge amounts of electricity. This electricity is generated by burning fossil fuels like coal, gas, and oil. They emit greenhouse gases that are hazardous to the environment. GHG consists of carbon dioxide, methane, nitrous oxide, and CFC gases polluting the environment. These chemicals lead to global warming that changes global climate and weather patterns. GHG emissions can be controlled by reducing power consumption by computer systems.