The document discusses tools and techniques for technical drawing and applied geometry. It provides instructions on how to prepare drawing tools like pencils, compasses, and templates. It then explains how to use tools like T-squares, triangles, and compasses to draw different shapes, including straight lines, arcs, circles, and lines at various angles. It also covers techniques for drawing tangent lines and arcs, fillets and rounds, and intersecting or tangent circles.
Rai University provides high quality education for MSc, Law, Mechanical Engineering, BBA, MSc, Computer Science, Microbiology, Hospital Management, Health Management and IT Engineering.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
Hierarchical Digital Twin of a Naval Power SystemKerry Sado
A hierarchical digital twin of a Naval DC power system has been developed and experimentally verified. Similar to other state-of-the-art digital twins, this technology creates a digital replica of the physical system executed in real-time or faster, which can modify hardware controls. However, its advantage stems from distributing computational efforts by utilizing a hierarchical structure composed of lower-level digital twin blocks and a higher-level system digital twin. Each digital twin block is associated with a physical subsystem of the hardware and communicates with a singular system digital twin, which creates a system-level response. By extracting information from each level of the hierarchy, power system controls of the hardware were reconfigured autonomously. This hierarchical digital twin development offers several advantages over other digital twins, particularly in the field of naval power systems. The hierarchical structure allows for greater computational efficiency and scalability while the ability to autonomously reconfigure hardware controls offers increased flexibility and responsiveness. The hierarchical decomposition and models utilized were well aligned with the physical twin, as indicated by the maximum deviations between the developed digital twin hierarchy and the hardware.
NUMERICAL SIMULATIONS OF HEAT AND MASS TRANSFER IN CONDENSING HEAT EXCHANGERS...ssuser7dcef0
Power plants release a large amount of water vapor into the
atmosphere through the stack. The flue gas can be a potential
source for obtaining much needed cooling water for a power
plant. If a power plant could recover and reuse a portion of this
moisture, it could reduce its total cooling water intake
requirement. One of the most practical way to recover water
from flue gas is to use a condensing heat exchanger. The power
plant could also recover latent heat due to condensation as well
as sensible heat due to lowering the flue gas exit temperature.
Additionally, harmful acids released from the stack can be
reduced in a condensing heat exchanger by acid condensation. reduced in a condensing heat exchanger by acid condensation.
Condensation of vapors in flue gas is a complicated
phenomenon since heat and mass transfer of water vapor and
various acids simultaneously occur in the presence of noncondensable
gases such as nitrogen and oxygen. Design of a
condenser depends on the knowledge and understanding of the
heat and mass transfer processes. A computer program for
numerical simulations of water (H2O) and sulfuric acid (H2SO4)
condensation in a flue gas condensing heat exchanger was
developed using MATLAB. Governing equations based on
mass and energy balances for the system were derived to
predict variables such as flue gas exit temperature, cooling
water outlet temperature, mole fraction and condensation rates
of water and sulfuric acid vapors. The equations were solved
using an iterative solution technique with calculations of heat
and mass transfer coefficients and physical properties.
HEAP SORT ILLUSTRATED WITH HEAPIFY, BUILD HEAP FOR DYNAMIC ARRAYS.
Heap sort is a comparison-based sorting technique based on Binary Heap data structure. It is similar to the selection sort where we first find the minimum element and place the minimum element at the beginning. Repeat the same process for the remaining elements.
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
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Industrial Training at Shahjalal Fertilizer Company Limited (SFCL)MdTanvirMahtab2
This presentation is about the working procedure of Shahjalal Fertilizer Company Limited (SFCL). A Govt. owned Company of Bangladesh Chemical Industries Corporation under Ministry of Industries.
Water billing management system project report.pdfKamal Acharya
Our project entitled “Water Billing Management System” aims is to generate Water bill with all the charges and penalty. Manual system that is employed is extremely laborious and quite inadequate. It only makes the process more difficult and hard.
The aim of our project is to develop a system that is meant to partially computerize the work performed in the Water Board like generating monthly Water bill, record of consuming unit of water, store record of the customer and previous unpaid record.
We used HTML/PHP as front end and MYSQL as back end for developing our project. HTML is primarily a visual design environment. We can create a android application by designing the form and that make up the user interface. Adding android application code to the form and the objects such as buttons and text boxes on them and adding any required support code in additional modular.
MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software. It is a stable ,reliable and the powerful solution with the advanced features and advantages which are as follows: Data Security.MySQL is free open source database that facilitates the effective management of the databases by connecting them to the software.
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
4. Fastening Paper to Drafting Board
1. Place the paper close to the table’s left edge.
2. Move the paper until its lower edge place about
the top edge of T-square.
5. 3. Align the top edge of the paper with T-square blade.
5. Move T-square down to smooth the paper.
4. Attach the paper’s corners with tape.
6. Attach the remaining paper’s corners with tape.
Fastening Paper to Drafting Board
6. 1. Remove the wood with penknife while expose a
lead about 8-10 mm.
2. Polish the lead into a conical shape with a
sandpaper.
3. Clean the lead with tissue paper.
Sharpening the Pencil
7. Preparing the Compass
2. Adjust the needle and the lead so that the tip of
the needle extends slightly more than the lead.
1. Sharpen the lead with a sandpaper.
needle lead
9. Straight line
Arc, Circle
4. Circle template
1. T-square
2. Triangles
3. Compass
Tools Shape to be drawn
Function of the Tools
10. Using the Compass
1. Locate the center of the circle by two intersecting lines.
2. Adjust the distance between needle and lead to a distance
equal to radius of the circle.
3. Set the needle point at center.
11. 4. Start circle. Apply enough pressure to the needle,
holding compass handle between thumb and index fingers.
5. Complete circle. Revolve handle clockwise.
Using the Compass
12. Using a Circle Template
1. Draw two perpendicular lines that pass through center of
a circle to be drawn.
Construction line
Object line
2. Place the template till all marking coincide with center lines.
3. Tracing the circle. (Hold the pencil normal to the paper.)
Given
Center of a circle to be drawn
13. Draw a Horizontal Line
1. Press the T-square head against the left edge of the table.
2. Smooth the blade to the right.
14. Draw a Horizontal Line
3. Lean the pencil at an angle about 60o with the paper in the
direction of the line and slightly “toed in”.
4. Draw the line from left to right while rotating the pencil slowly.
15. Draw a Vertical Line
1. Set T-square as before. Place any triangle on T-square edge.
2. Slide your left hand to hold both T-square and triangle in
position.
16. Draw a Vertical Line
3. Lean the pencil to the triangle.
4. Draw the line upward while rotating the pencil slowly.
17. Draw a line at 45o with horizontal
2. Draw the line in the direction as shown below.
1. Place 45o triangle on the T-square edge and press them
firmly against the paper.
18. 1. Place 30o-60o triangle on the T-square edge and press
them firmly against the paper.
2. Draw the line in the direction as shown below.
Draw a line at angle 30o and 60o
20. A
B
Draw the line passing through
two given points
1. Place the pencil tip at one of the points.
2. Place the triangle against the pencil tip.
A
B
Given
3. Swing the triangle around the pencil tip
until its edge align with the second point.
4. Draw a line.
21. +
C
To draw a line making 15o with a given
line and pass through a given point.
Given
22. +
C
To draw a line making 15o with a given
line and pass through a given point.
Given
23. To draw a line making 30o with a given
line and pass through a given point.
+
C
Given
25. FILLET AND ROUND
To draw the arc, we must find the location of the center of that arc.
How do we find the center of the arc?
26. To draw an arc of given radius tangent
to two perpendicular lines
Given arc radius r
r
r
27. To draw an arc of given radius tangent
to two perpendicular lines
Given arc radius r
center of the arc
Starting point
Ending point
28. To draw an arc of given radius tangent
to two lines
Given arc radius r
+
+
r
r
29. To draw an arc of given radius tangent
to two lines
Given arc radius r
T.P.1
T.P.2
30. C
To draw a line tangent to a circle at a
point on the circle
Given
31. To draw a line tangent to a circle from
a point outside the circle
Given
C
mark a tangent point
32. When circle tangent to other circle
C1
C2
Tangent point
R1
R2
The center of two circles and tangent point must lie on the
same straight line !!!
33. To draw a circle tangent to two circles I
+
C2
Given
+
C1
C+
Example
34. +
+
C1
C2
R + R1
Given
Two circles and the radius of the third circle = R
R + R2
R1
R2
C
center of the arc
To draw a circle tangent to two circles I
R
35. C2
R2
When circle tangent to other circle
C1
Tangent point
R1
The center of two circles and tangent point must lie on the
same straight line !!!