This document contains an assignment for a Strength of Materials course. It includes 4 questions related to analyzing stresses and torques in circular shafts and bars. Question 1 involves determining the peak shearing stress and tensile stress in a steel shaft loaded by a twisting moment at its midpoint. Question 2 involves determining the reactive torques at the fixed ends of a circular shaft loaded by couples. Question 3 involves determining the maximum shearing stress and relative angle of twist in a solid circular shaft delivering power to machines at its ends. Question 4 involves determining the inside and outside diameters of a hollow steel shaft transmitting a given torque such that the angle of twist and shearing stress do not exceed allowable limits.
This document contains instructions for an assignment on Strength of Materials (SOM). It includes 5 questions related to Course Outcome 1 (CO-1) on topics like axial elongation of tapered bars, error in using mean diameter to calculate Young's modulus, stresses under biaxial loading, principal stresses and planes, and material properties like Young's modulus, Poisson's ratio, modulus of rigidity and bulk modulus based on experimental data for extension and lateral contraction of a loaded bar. The assignment is due on April 10, 2020 and carries a maximum of 50 marks.
This document contains instructions for an assignment on strength of materials (SOM) given by the instructor Suryakant Kumar. It has 4 questions related to course outcome 2 assessing beams with different loading and support conditions to draw shear force and bending moment diagrams, and determine reactions and shear stress distribution. Students are asked to attempt all questions on plain A4 paper with diagrams drawn using pencils by the due date of April 14, 2020, for a maximum of 50 marks.
This document contains instructions for an assignment on strength of materials (SOM). It lists 5 questions about calculating deflections (EIδ) in beams under different loading conditions. The questions cover calculating deflections at specific points for an overhanging beam, simply supported beam, and cantilever beam with distributed loads. Students are instructed to show their work and use diagrams to solve the problems.
This document contains an assignment for a Strength of Materials course. It includes 4 questions related to analyzing stresses and torques in circular shafts and bars. Question 1 involves determining the peak shearing stress and tensile stress in a steel shaft loaded by a twisting moment at its midpoint. Question 2 involves determining the reactive torques at the fixed ends of a circular shaft loaded by couples. Question 3 involves determining the maximum shearing stress and relative angle of twist in a solid circular shaft delivering power to machines at its ends. Question 4 involves determining the inside and outside diameters of a hollow steel shaft transmitting a given torque such that the angle of twist and shearing stress do not exceed allowable limits.
This document contains instructions for an assignment on Strength of Materials (SOM). It includes 5 questions related to Course Outcome 1 (CO-1) on topics like axial elongation of tapered bars, error in using mean diameter to calculate Young's modulus, stresses under biaxial loading, principal stresses and planes, and material properties like Young's modulus, Poisson's ratio, modulus of rigidity and bulk modulus based on experimental data for extension and lateral contraction of a loaded bar. The assignment is due on April 10, 2020 and carries a maximum of 50 marks.
This document contains instructions for an assignment on strength of materials (SOM) given by the instructor Suryakant Kumar. It has 4 questions related to course outcome 2 assessing beams with different loading and support conditions to draw shear force and bending moment diagrams, and determine reactions and shear stress distribution. Students are asked to attempt all questions on plain A4 paper with diagrams drawn using pencils by the due date of April 14, 2020, for a maximum of 50 marks.
This document contains instructions for an assignment on strength of materials (SOM). It lists 5 questions about calculating deflections (EIδ) in beams under different loading conditions. The questions cover calculating deflections at specific points for an overhanging beam, simply supported beam, and cantilever beam with distributed loads. Students are instructed to show their work and use diagrams to solve the problems.
The document appears to be a scanned receipt from a grocery store listing various food items purchased including milk, eggs, bread, bananas, and ground beef. The total for the grocery receipt comes to $36.47. The receipt shows a payment was made with a credit card ending in 4321.
The document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. It includes the store name, date, time of purchase, payment method (credit card), and a thank you message at the bottom.
The document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. It includes the store name, date, time of purchase, payment method (credit card), and a thank you message at the bottom.
This document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. The receipt details 13 different items bought including milk, eggs, bread, toilet paper and cleaning supplies. It provides the item names, quantities, and individual prices for each item along with the subtotal, tax amount, and total cost of the grocery order.
This document appears to be a scanned receipt from a grocery store listing various food items purchased including eggs, milk, bread, bananas, and ground beef. The total for the grocery receipt comes to $36.87 with the payment made by credit card. The receipt provides details of the date, time, payment method, and total for the grocery purchase.
This document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. The receipt details 13 different items bought including milk, eggs, bread, toilet paper and paper towels. It provides the item names, quantities, and individual prices for each item along with the subtotal, tax amount, and total cost of the grocery order.
This document appears to be a scanned receipt from a grocery store listing various food items purchased including milk, eggs, bread, fruit, and vegetables. The receipt details the item names, quantities, and individual prices of each item before providing a subtotal, tax amount, and total cost of the grocery order.
This document appears to be a scanned receipt from a grocery store listing various food items purchased including milk, eggs, bread, bananas, and ground beef. The total for the grocery receipt comes to $36.87 with the payment made by credit card. The receipt provides details of the date, time, payment method, and total for the grocery purchase.
This document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. The receipt details 6 items bought including milk, eggs, bread, laundry detergent, paper towels, and dish soap. It provides the item names, quantities, and individual prices for each purchase along with the total cost for the grocery trip.
The document appears to be a scanned receipt from a restaurant in New York City listing various food and drink items purchased, with a total amount due of $167.82. It includes the restaurant's name, date, time, table number, and lists items such as cocktails, appetizers, entrees, desserts, and a 20% service charge. The receipt provides details of a dining transaction at the specified restaurant on the given date.
The document discusses bending stresses in beams. It begins by outlining simplifying assumptions made in deriving the flexure formula to relate bending stresses to bending moments. These assumptions include plane sections remaining plane and perpendicular to the deformed beam axis. The neutral axis is defined as the axis where longitudinal fibers experience no deformation.
The derivation of the flexure formula is shown. Flexural stresses are proportional to the distance from the neutral axis and bending moment. Procedures for determining stresses at given points, as well as maximum stresses, are provided. Sample problems demonstrate applying the flexure formula and finding maximum stresses for different beam cross sections.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
The document appears to be a scanned receipt from a grocery store listing various food items purchased including milk, eggs, bread, bananas, and ground beef. The total for the grocery receipt comes to $36.47. The receipt shows a payment was made with a credit card ending in 4321.
The document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. It includes the store name, date, time of purchase, payment method (credit card), and a thank you message at the bottom.
The document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. It includes the store name, date, time of purchase, payment method (credit card), and a thank you message at the bottom.
This document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. The receipt details 13 different items bought including milk, eggs, bread, toilet paper and cleaning supplies. It provides the item names, quantities, and individual prices for each item along with the subtotal, tax amount, and total cost of the grocery order.
This document appears to be a scanned receipt from a grocery store listing various food items purchased including eggs, milk, bread, bananas, and ground beef. The total for the grocery receipt comes to $36.87 with the payment made by credit card. The receipt provides details of the date, time, payment method, and total for the grocery purchase.
This document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. The receipt details 13 different items bought including milk, eggs, bread, toilet paper and paper towels. It provides the item names, quantities, and individual prices for each item along with the subtotal, tax amount, and total cost of the grocery order.
This document appears to be a scanned receipt from a grocery store listing various food items purchased including milk, eggs, bread, fruit, and vegetables. The receipt details the item names, quantities, and individual prices of each item before providing a subtotal, tax amount, and total cost of the grocery order.
This document appears to be a scanned receipt from a grocery store listing various food items purchased including milk, eggs, bread, bananas, and ground beef. The total for the grocery receipt comes to $36.87 with the payment made by credit card. The receipt provides details of the date, time, payment method, and total for the grocery purchase.
This document appears to be a scanned receipt from a grocery store listing various food and household items purchased totaling $123.45. The receipt details 6 items bought including milk, eggs, bread, laundry detergent, paper towels, and dish soap. It provides the item names, quantities, and individual prices for each purchase along with the total cost for the grocery trip.
The document appears to be a scanned receipt from a restaurant in New York City listing various food and drink items purchased, with a total amount due of $167.82. It includes the restaurant's name, date, time, table number, and lists items such as cocktails, appetizers, entrees, desserts, and a 20% service charge. The receipt provides details of a dining transaction at the specified restaurant on the given date.
The document discusses bending stresses in beams. It begins by outlining simplifying assumptions made in deriving the flexure formula to relate bending stresses to bending moments. These assumptions include plane sections remaining plane and perpendicular to the deformed beam axis. The neutral axis is defined as the axis where longitudinal fibers experience no deformation.
The derivation of the flexure formula is shown. Flexural stresses are proportional to the distance from the neutral axis and bending moment. Procedures for determining stresses at given points, as well as maximum stresses, are provided. Sample problems demonstrate applying the flexure formula and finding maximum stresses for different beam cross sections.
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Redefining brain tumor segmentation: a cutting-edge convolutional neural netw...IJECEIAES
Medical image analysis has witnessed significant advancements with deep learning techniques. In the domain of brain tumor segmentation, the ability to
precisely delineate tumor boundaries from magnetic resonance imaging (MRI)
scans holds profound implications for diagnosis. This study presents an ensemble convolutional neural network (CNN) with transfer learning, integrating
the state-of-the-art Deeplabv3+ architecture with the ResNet18 backbone. The
model is rigorously trained and evaluated, exhibiting remarkable performance
metrics, including an impressive global accuracy of 99.286%, a high-class accuracy of 82.191%, a mean intersection over union (IoU) of 79.900%, a weighted
IoU of 98.620%, and a Boundary F1 (BF) score of 83.303%. Notably, a detailed comparative analysis with existing methods showcases the superiority of
our proposed model. These findings underscore the model’s competence in precise brain tumor localization, underscoring its potential to revolutionize medical
image analysis and enhance healthcare outcomes. This research paves the way
for future exploration and optimization of advanced CNN models in medical
imaging, emphasizing addressing false positives and resource efficiency.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
Introduction- e - waste – definition - sources of e-waste– hazardous substances in e-waste - effects of e-waste on environment and human health- need for e-waste management– e-waste handling rules - waste minimization techniques for managing e-waste – recycling of e-waste - disposal treatment methods of e- waste – mechanism of extraction of precious metal from leaching solution-global Scenario of E-waste – E-waste in India- case studies.
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.
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.
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...IJECEIAES
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
ACEP Magazine edition 4th launched on 05.06.2024Rahul
This document provides information about the third edition of the magazine "Sthapatya" published by the Association of Civil Engineers (Practicing) Aurangabad. It includes messages from current and past presidents of ACEP, memories and photos from past ACEP events, information on life time achievement awards given by ACEP, and a technical article on concrete maintenance, repairs and strengthening. The document highlights activities of ACEP and provides a technical educational article for members.
TIME DIVISION MULTIPLEXING TECHNIQUE FOR COMMUNICATION SYSTEMHODECEDSIET
Time Division Multiplexing (TDM) is a method of transmitting multiple signals over a single communication channel by dividing the signal into many segments, each having a very short duration of time. These time slots are then allocated to different data streams, allowing multiple signals to share the same transmission medium efficiently. TDM is widely used in telecommunications and data communication systems.
### How TDM Works
1. **Time Slots Allocation**: The core principle of TDM is to assign distinct time slots to each signal. During each time slot, the respective signal is transmitted, and then the process repeats cyclically. For example, if there are four signals to be transmitted, the TDM cycle will divide time into four slots, each assigned to one signal.
2. **Synchronization**: Synchronization is crucial in TDM systems to ensure that the signals are correctly aligned with their respective time slots. Both the transmitter and receiver must be synchronized to avoid any overlap or loss of data. This synchronization is typically maintained by a clock signal that ensures time slots are accurately aligned.
3. **Frame Structure**: TDM data is organized into frames, where each frame consists of a set of time slots. Each frame is repeated at regular intervals, ensuring continuous transmission of data streams. The frame structure helps in managing the data streams and maintaining the synchronization between the transmitter and receiver.
4. **Multiplexer and Demultiplexer**: At the transmitting end, a multiplexer combines multiple input signals into a single composite signal by assigning each signal to a specific time slot. At the receiving end, a demultiplexer separates the composite signal back into individual signals based on their respective time slots.
### Types of TDM
1. **Synchronous TDM**: In synchronous TDM, time slots are pre-assigned to each signal, regardless of whether the signal has data to transmit or not. This can lead to inefficiencies if some time slots remain empty due to the absence of data.
2. **Asynchronous TDM (or Statistical TDM)**: Asynchronous TDM addresses the inefficiencies of synchronous TDM by allocating time slots dynamically based on the presence of data. Time slots are assigned only when there is data to transmit, which optimizes the use of the communication channel.
### Applications of TDM
- **Telecommunications**: TDM is extensively used in telecommunication systems, such as in T1 and E1 lines, where multiple telephone calls are transmitted over a single line by assigning each call to a specific time slot.
- **Digital Audio and Video Broadcasting**: TDM is used in broadcasting systems to transmit multiple audio or video streams over a single channel, ensuring efficient use of bandwidth.
- **Computer Networks**: TDM is used in network protocols and systems to manage the transmission of data from multiple sources over a single network medium.
### Advantages of TDM
- **Efficient Use of Bandwidth**: TDM all