FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
Immunizing Image Classifiers Against Localized Adversary Attacksgerogepatton
This paper addresses the vulnerability of deep learning models, particularly convolutional neural networks
(CNN)s, to adversarial attacks and presents a proactive training technique designed to counter them. We
introduce a novel volumization algorithm, which transforms 2D images into 3D volumetric representations.
When combined with 3D convolution and deep curriculum learning optimization (CLO), itsignificantly improves
the immunity of models against localized universal attacks by up to 40%. We evaluate our proposed approach
using contemporary CNN architectures and the modified Canadian Institute for Advanced Research (CIFAR-10
and CIFAR-100) and ImageNet Large Scale Visual Recognition Challenge (ILSVRC12) datasets, showcasing
accuracy improvements over previous techniques. The results indicate that the combination of the volumetric
input and curriculum learning holds significant promise for mitigating adversarial attacks without necessitating
adversary training.
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
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.
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.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
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.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
2. What is an Operating System?
What is an Operating system?
A program that acts as an intermediary between a user of a
computer and the computer hardware.
Resource allocator
Control Program
Operating system goals:
Execute user programs and make solving user problems easier
Make the computer system convenient to use
Use the computer hardware in an efficient manner
An operating system is the one program that is running at
all the times on the computer- usually called the
kernel.(System programs and application programs)
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3. Computer System Structure
Computer system can be divided into four components
Hardware – provides basic computing resources
CPU, memory, I/O devices
Operating system
Controls and coordinates use of hardware among various
applications and users
Application programs – define the ways in which the system
resources are used to solve the computing problems of the
users
Word processors, compilers, web browsers, database
systems, video games
Users
People, machines, other computers
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5. Operating System Definition
To understand more fully the OS role, we explore OS from 2 view
points.:
User view: In single user, it should be easy to use.
In other cases, where users access the same user through different
terminals, More emphasize is on resource allocation and
utilization.
System View:
OS is a resource allocator
Manages all resources
Decides between conflicting requests for efficient and fair
resource use
OS is a control program
Controls execution of programs to prevent errors and improper
use of the computer
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6. Operating-System Operations
Modern OS s are Interrupt driven. If no process, no I/o devices, No users
Os will sit quietly waiting for some event to occur.
Hardware generates interrupt and..
Program or software send generate events by using system calls. Error or
request by a software creates exception or trap
Division by zero, request for operating system service
Since OS and users share h/w, s/w resources, we make to sure that an
error in a program does not affect any other program.
Dual-mode operation allows OS to protect itself and other system
components
User mode and kernel mode
Mode bit provided by hardware
Provides ability to distinguish when system is running user code or
kernel code
Some instructions designated as privileged, only executable in
kernel mode
System call changes mode to kernel, return from call resets it to user
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8. Computer System Organization
Computer-system operation
One or more CPUs, device controllers connect through common bus
providing access to shared memory
Concurrent execution of CPUs and devices competing for memory
cycles
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9. TYPES OF OS: Batch Systems
Early computers were Physically enormous machines run from a
console
The common input devices were card readers and tape drives.
The common output devices were line printers, tape drives, and
card punches.
The user did not interact directly with the computer systems. Rather,
the user prepared a job -which consisted of the program, the data,
and some control information about the nature of the job (control
cards)-and submitted it to the computer operator. The job was
usually in the form of punch punch cards. At some later time (after
minutes, hours, or days), the output appeared.
To speed up processing, operators batched together jobs with
similar needs and ran them through the computer as a group.
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10. Multiprogrammed OS
needed for efficiency
Single user cannot keep CPU and I/O devices busy at
all times
Multiprogramming organizes jobs (code and data) so
CPU always has one to execute
A subset of total jobs in system is kept in memory
One job selected and run via job scheduling
When it has to wait (for I/O for example), OS switches
to another job
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11. Timesharing OS
Timesharing (multitasking) is logical extension in
which CPU switches jobs so frequently that users can
interact with each job while it is running, creating
interactive computing
Each user has at least one program executing in
memory process
If several jobs ready to run at the same time CPU
scheduling
If processes don’t fit in memory, swapping moves
them in and out to run
Virtual memory allows execution of processes not
completely in memory
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12. Multiprocessing OS
Most systems to date are single-processor systems; that is, they
have only one main CPU.
However, multiprocessor systems (also known as parallel
systems or tightly coupled systems) are growing in importance.
Such systems have more than one processor in close
communication, sharing the computer bus, the clock, and
sometimes memory and peripheral devices.
Multiprocessor systems have three main advantages:
Increased throughput.
Economy of scale.
Increased reliability.
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13. Distributed Systems
A network, in the simplest terms, is a communication
path between two or more systems. Distributed systems
depend on networking for their functionality. By being
able to communicate, distributed systems are able to
share computational tasks, and provide a rich set of
features to users.
CLIENT SERVER SYSTEMS
PEER TO PEER SYSTEMS
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14. Real time embedded systems:
→Embedded computers are most prevalent form of computers in existence.
→these are found everywhere ex: robots, microwave oven. Now a days
entire house can be made computerized. Used in alarm systems, coffee
makers, CCTV cameras etc. They tend to have specific tasks.
→OS has limited features.
→ have little user interface.
these systems run Real time OS.
Rigid time constraints. Processing must be done within that time constraint.
Used as a control device for a specific application.
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15. Handheld systems:
Include PDAs(Personal digital assistants). Such as palm and pocket PCs, cell
phones.
More challenging.
Limited size, weight.
Small memory, slow processor, small display screens.
Only a small subset of web page is displayed on the handheld device. Known
as web clipping
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