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.
Information Technology for Management
Chapter 5:
Per OxyChem’s Cloud Computing Formula for Success:
Problem
Loss of IT infrastructure from divestiture
Limited time frame and resources
Inadequate in-house IT staff
Solutions
Managed cloud infrastructure
On-demand, scalable services
-Illustrates use of cloud computing to improve effectiveness and control costs.
Infrastructure Components:
IT infrastructure:
Platform for supporting all information systems in the business
-Computer hardware, Computer software, Data management technology, Networking
Read MoreUnderstanding Data Warehouses: Models, Design, and Usage
A decision support database that is maintained separately from the organization’s operational database
Support information processing by providing a solid platform of consolidated, historical data for analysis.
“A data warehouse is a subject-oriented, integrated, time-variant, and nonvolatile collection of data in support of management’s decision-making process
Subject-Oriented
Organized around major subjects, such as customer,
product, sales
Focusing on the modeling and analysis of data for
decision
Read MoreUnderstanding Cloud Computing: Types, Models, and Applications
CLOUD COMPUTING
The term cloud refers to a network or the internet. It is a technology that uses remote servers or the internet to store, manage, and access data online rather than local drivers. The data can be anything such as files, images, documents, audio, video, and more. There are several operations that we can do using cloud computing:
- Develop new applications and services.
- Store, backup, and recover data.
- Develop software on demand.
- Analyze data.
- Stream videos and audio.