Ring spinning machines are the most commonly used spinning machines in the world. They consist of a spindle that twists the yarn and a ring and traveler that maintain tension. The key operations are creeling, drafting, twisting, winding, and doffing. Drafting draws out the fiber through three rollers. As the traveler circles the ring at high speeds, it picks up fibers from the front roller and twists them onto the spindle. Ring spinning can produce fine to coarse yarns from 5-1000 tex with good strength suitable for many applications. However, it has limitations such as low production rates and frequent doffing requirements.
The compact spinning is a process where fiber strand drawn by drafting system is condensed before twisting it.Following methods are used by machine manufacturers to condense the fiber strand.
1. Aerodynamic condensing.
2. Mechanical condensing.
3. Magnetic condensing.
Compact spinning has a promising future because of the higher production and improved quality of compact yarns
Pile fabrics: Manufacturing methods include woven pile fabric formation & others methods such as knit pile fabric, tufted pile fabrics etc. A "Terry" or a "Terry Towel" as is generally known is a woven pile fabric formed by slack tension weave process. of weaving.
Ring, rotor, compact, air-jet and other forms of spinning are discussed in this presentation along with Illustrations. the crisp and clear explanation helps in understanding the basic know how of advance methods of spinning
Design, fabrication and performance evaluation of melon shelling machineeSAT Journals
Abstract The design, fabrication and testing of melon shelling machine were carried out. Considering the numerous nutritional and economical importance of the melon seed (Egusi) it is only binding to fashion drudgery free and less expensive means of processing the seed. An insight was carefully taken from previous attempts on this work by various scholars. The machine has a power rating of 1.5hp, power transmitted was 1656.70 wattsand was constructed using basically mildsteel. Performance test was carried out and the machine has efficiency of 62.5% for shelled melon, 10% for unshelled melon, 10% for breakage and 17.5% for partially shelled melon.
Keywords: Design, fabrication, melon seed, shelled, unshelled.
The compact spinning is a process where fiber strand drawn by drafting system is condensed before twisting it.Following methods are used by machine manufacturers to condense the fiber strand.
1. Aerodynamic condensing.
2. Mechanical condensing.
3. Magnetic condensing.
Compact spinning has a promising future because of the higher production and improved quality of compact yarns
Pile fabrics: Manufacturing methods include woven pile fabric formation & others methods such as knit pile fabric, tufted pile fabrics etc. A "Terry" or a "Terry Towel" as is generally known is a woven pile fabric formed by slack tension weave process. of weaving.
Ring, rotor, compact, air-jet and other forms of spinning are discussed in this presentation along with Illustrations. the crisp and clear explanation helps in understanding the basic know how of advance methods of spinning
Design, fabrication and performance evaluation of melon shelling machineeSAT Journals
Abstract The design, fabrication and testing of melon shelling machine were carried out. Considering the numerous nutritional and economical importance of the melon seed (Egusi) it is only binding to fashion drudgery free and less expensive means of processing the seed. An insight was carefully taken from previous attempts on this work by various scholars. The machine has a power rating of 1.5hp, power transmitted was 1656.70 wattsand was constructed using basically mildsteel. Performance test was carried out and the machine has efficiency of 62.5% for shelled melon, 10% for unshelled melon, 10% for breakage and 17.5% for partially shelled melon.
Keywords: Design, fabrication, melon seed, shelled, unshelled.
Performance Evaluation of a Triple Layer Electric Sieving Machine (TLESM)Dr. Amarjeet Singh
A multi-layer sieving machine is of multiplayer and highly efficient sieving machine that retains particles based on the difference in size. This study was carried out to evaluate the performance of a multi-layer electric sieving machine. The performance test of the machine was carried out in the Agricultural department farm of the Federal College of Forestry, Jericho Ibadan. The electrical sieving machine was used to carry out separation operations on a mixture of food crop materials at varying speeds. The machine passed the test of workability; it was able to perform the specific function of sieving and separating food materials of varying sizes. Mixed food materials were poured in the first layer of the mesh assembly and sieved. The time to completely separate the mixture into the three different layers was recorded and the respective weight of each layer was finally measured. Layer 1 had a mean weight gain of 0.42kg; layer 2 had a mean weight gain of 0.14 while layer 3 had a mean weight loss of 0.56kg when sieving was done for 5 minutes; at 7 minutes, Layer 1 had a mean weight gain of 0.1kg; layer 2 had a mean weight gain of 0.18 while layer 3 had a mean weight loss of 0.28kg, while at 10 minutes, the first layer had a mean weight gain of 0.06 kg, second layer also had mean weight gain of 0.02 while the third layer had a mean weight loss 0.08. The mean efficiency was highest at 99% in all the layers when sieving operation was carried out for 10 minutes and lowest at 96% for layer 3 when the machine ran for five (5) minutes. The effect of change in speed suggests that increment in sieving speed above 750rpm or below 300rpm gives a low efficiency.
Cumulative hrf of NMWD model for Renin in patients with DepressionIJERA Editor
Hypercortisolism as a sign of hypothamamus-pituitary-adrenocortical (HPA) axis over activity and sleep EEG
changes are frequently observed in depression. Closely related to theHPA axis is the renin-angiotensinaldosterone
system (RAAS) as 1. adrenocorticotropic hormone(ACTH) is a common stimulus for cortisol and
aldosterone, 2. cortisol release is suppressed bymineralocorticoid receptor (MR) agonists 3. angiotensin II
(ATII) releases CRH and vasopressin from the hypothalamus. Here difference of sleep related activity of the
RAAS between depressed patients and healthy controls and also we found the analysis of survival function and
cumulative hazared rate function for renin.
RELIABILITY BASED DESIGN OF A GEAR BOXIJERA Editor
Reliability is the probability that a system, component or device will perform without failure for a specified period of time under specified operating conditions. The concept of reliability is of great importance in the design of various machine members. Conventional engineering design uses a deterministic approach. It disregards the fact that the material properties, the dimensions of the components and the externally applied loads are statistical in nature. In conventional design this uncertainties are covered with a factor of safety, which is not always successful. The growing trend towards reducing uncertainty and increasing reliability is to use the probabilistic approach. In the present work a three shaft four speed gear box and six speed gear box are designed using reliability principles. For the specified reliability of the system (Gear box), component reliability (Gear pair) is calculated by considering the system as a series system. Design is considered to be safe and adequate if the probability of failure of gear box is less than or equal to a specified quantity in each of the two failure modes. . All the parameters affecting the design are considered as random variables and all the random variables are assumed to follow normal distribution. A computer program in C++ is developed to calculate the face widths in bending and surface failure modes. The larger one out of the two values is considered. By changing the variations in the design parameters, variations in the face widths are studied.
Study of Roller Conveyor Chain Strip under Tensile Loading IJMER
Conveyor chain drives are one of the primary systems used in industry to transmit power and
convey products. Conveyor chain that suffers from premature elongation due to wear and needs to be
replaced on a frequent basis will negatively impact productivity and increase the cost of the operation.
Roller conveyor chains are the critical component in sugar mills, paper mill, food processing, fertilizer
industry, pharmaceutical industry, cement industry, foundry industry, heat treatment units, coal mines
etc. The scope of this paper is to study the behavior of chain strip under tensile loading. In turn it will
help in reducing down time and maintenance cost related chain assembly in various above said
industries. Today, few literatures on the wear of conveyor chain are available. In this paper we study the
analytical, experimental and numerical behavior of strip under tensile loading.
Democratizing Fuzzing at Scale by Abhishek Aryaabh.arya
Presented at NUS: Fuzzing and Software Security Summer School 2024
This keynote talks about the democratization of fuzzing at scale, highlighting the collaboration between open source communities, academia, and industry to advance the field of fuzzing. It delves into the history of fuzzing, the development of scalable fuzzing platforms, and the empowerment of community-driven research. The talk will further discuss recent advancements leveraging AI/ML and offer insights into the future evolution of the fuzzing landscape.
Quality defects in TMT Bars, Possible causes and Potential Solutions.PrashantGoswami42
Maintaining high-quality standards in the production of TMT bars is crucial for ensuring structural integrity in construction. Addressing common defects through careful monitoring, standardized processes, and advanced technology can significantly improve the quality of TMT bars. Continuous training and adherence to quality control measures will also play a pivotal role in minimizing these defects.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Forklift Classes Overview by Intella PartsIntella Parts
Discover the different forklift classes and their specific applications. Learn how to choose the right forklift for your needs to ensure safety, efficiency, and compliance in your operations.
For more technical information, visit our website https://intellaparts.com
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.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
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.
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.
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.
Automobile Management System Project Report.pdfKamal Acharya
The proposed project is developed to manage the automobile in the automobile dealer company. The main module in this project is login, automobile management, customer management, sales, complaints and reports. The first module is the login. The automobile showroom owner should login to the project for usage. The username and password are verified and if it is correct, next form opens. If the username and password are not correct, it shows the error message.
When a customer search for a automobile, if the automobile is available, they will be taken to a page that shows the details of the automobile including automobile name, automobile ID, quantity, price etc. “Automobile Management System” is useful for maintaining automobiles, customers effectively and hence helps for establishing good relation between customer and automobile organization. It contains various customized modules for effectively maintaining automobiles and stock information accurately and safely.
When the automobile is sold to the customer, stock will be reduced automatically. When a new purchase is made, stock will be increased automatically. While selecting automobiles for sale, the proposed software will automatically check for total number of available stock of that particular item, if the total stock of that particular item is less than 5, software will notify the user to purchase the particular item.
Also when the user tries to sale items which are not in stock, the system will prompt the user that the stock is not enough. Customers of this system can search for a automobile; can purchase a automobile easily by selecting fast. On the other hand the stock of automobiles can be maintained perfectly by the automobile shop manager overcoming the drawbacks of existing system.
1. Ring Spinning Machine
Presented By-
Md.Redwan Islam
ID-162003007
Presented For-
PROF. DR. MD. ISMAIL
CHOWDHURY
Department of Textile
Engineering
Green University of Bangladesh
12. Twist = Spindle R.P.M
TPI = Spindle R.P.M Surface Speed of Front Roller
3. Twisting
13. Traveller
• Travels around the ring at (30-35) m/sec.
• The hardness of the running traveler (650-
700) vickers.
• Contact pressure between ring and traveler
is up to 35N/mm².
• Generate high temperature (300-400°C)
• The mass of traveller is 16-120gm/1000.
14. Ne Traveller Weight
SS Traveller Weight
RD Traveller Weight
BD Traveller Weight
Factors considered for selection of a
traveler:
15. Main advantageous features of ring
spinning machine:
• Most usable spinning machine in the
world.
• Fine to coarse (5-1000 tex) yarn can be
produced.
• Yarn has very good strength.
• Yarn is suitable for all next process.
• More than 80% of total yarn is
produced by ring spinning machine
16. Limitations of ring spinning:
• Low twisting rate
• Low production
• Small bobbin size
• Frequent doffing
• High energy consumption
• Limited speed of traveller
