Components of an er diagram
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An entity type is defined in ER diagrams as a rectangular box enclosing the entity type name. Attributes name are attached in ovals and are connected to their entity type by using straight lines. https://www.ducatindia.com/datascienceusingpython
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Waiting is having the automated task execution elapse a certain amount of time before continuing with the next step. It provides some slack between actions performed, in selenium slack between locating an element or any other operation with the element. The wait is mostly used to handle the ElementNotVisibleException exception during load of web page. Waits help a user to troubleshoot issues while re-directing to different web pages by refreshing the entire web page and re-loading the new web elements. At times there can be Ajax calls as well. Thus, a time lag can be seen while reloading the web pages and reflecting the web elements.
https://www.ducatindia.com/javatraining/
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By Dr. Vinod Kumar KanvariaChapter wise All Notes of First year Basic Civil Engineering.pptx
Chapter wise All Notes of First year Basic Civil Engineering
Syllabus
Chapter-1
Introduction to objective, scope and outcome the subject
Chapter 2
Introduction: Scope and Specialization of Civil Engineering, Role of civil Engineer in Society, Impact of infrastructural development on economy of country.
Chapter 3
Surveying: Object Principles & Types of Surveying; Site Plans, Plans & Maps; Scales & Unit of different Measurements.
Linear Measurements: Instruments used. Linear Measurement by Tape, Ranging out Survey Lines and overcoming Obstructions; Measurements on sloping ground; Tape corrections, conventional symbols. Angular Measurements: Instruments used; Introduction to Compass Surveying, Bearings and Longitude & Latitude of a Line, Introduction to total station.
Levelling: Instrument used Object of levelling, Methods of levelling in brief, and Contour maps.
Chapter 4
Buildings: Selection of site for Buildings, Layout of Building Plan, Types of buildings, Plinth area, carpet area, floor space index, Introduction to building byelaws, concept of sun light & ventilation. Components of Buildings & their functions, Basic concept of R.C.C., Introduction to types of foundation
Chapter 5
Transportation: Introduction to Transportation Engineering; Traffic and Road Safety: Types and Characteristics of Various Modes of Transportation; Various Road Traffic Signs, Causes of Accidents and Road Safety Measures.
Chapter 6
Environmental Engineering: Environmental Pollution, Environmental Acts and Regulations, Functional Concepts of Ecology, Basics of Species, Biodiversity, Ecosystem, Hydrological Cycle; Chemical Cycles: Carbon, Nitrogen & Phosphorus; Energy Flow in Ecosystems.
Water Pollution: Water Quality standards, Introduction to Treatment & Disposal of Waste Water. Reuse and Saving of Water, Rain Water Harvesting. Solid Waste Management: Classification of Solid Waste, Collection, Transportation and Disposal of Solid. Recycling of Solid Waste: Energy Recovery, Sanitary Landfill, On-Site Sanitation. Air & Noise Pollution: Primary and Secondary air pollutants, Harmful effects of Air Pollution, Control of Air Pollution. . Noise Pollution Harmful Effects of noise pollution, control of noise pollution, Global warming & Climate Change, Ozone depletion, Greenhouse effect
Text Books:
1. Palancharmy, Basic Civil Engineering, McGraw Hill publishers.
2. Satheesh Gopi, Basic Civil Engineering, Pearson Publishers.
3. Ketki Rangwala Dalal, Essentials of Civil Engineering, Charotar Publishing House.
4. BCP, Surveying volume 1
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Components of an er diagram
- 1. Components of an ER Diagram CONTACT:- 70-70-90-50-90 INFO@DUCATINDIA.COM WELCOME TO DUCAT INDIA
- 2. An ER Diagram includes the following components:- - Entity - Attributes - Relationships Entity An entity is a person, place, element, event, or idea about which information is recorded. In an entity- relationship diagram, an entity is described by using a rectangle. Some of the examples of the entities are given below
- 3. Person: STUDENT, PATIENT, EMPLOYEE, DOCTOR, ENGINEER Place: CITY, COUNTRY, STATE Event: SEMINAR, SALE, RENEWAL, COMPETITION Object: BUILDING, AUTOMOBILE, MACHINE, FURNITURE, TOY Concept: COURSE, ACCOUNT, TRAINING CENTRE, WORK CENTRE
- 4. Entity Types An entity is represented as a collection of entities that have similar attributes. For instance, an employee in a company database. The employee entities share similar attributes, however, such an entity has its value for each attribute. The entity type, the employee, is display in the figure:
- 5. An entity type is defined in ER diagrams as a rectangular box enclosing the entity type name. Attributes name are attached in ovals and are connected to their entity type by using straight lines as display in fig: Entity Set The collection of all entities of a specific entity type inside the database at any point in time is known as an entity set. It is also referred to as the extension of the entity type.