Where it is necessary to obtain a quick high strength fixing into concrete, brick, masonry, block-work, rock or other material of sufficient strength to take the load required of the fixing. ANCHORFIX CAPSULE can be fixed into horizontal and vertical surfaces, or overhead.
How to Make Awesome SlideShares: Tips & TricksSlideShare
Turbocharge your online presence with SlideShare. We provide the best tips and tricks for succeeding on SlideShare. Get ideas for what to upload, tips for designing your deck and more.
Where it is necessary to obtain a quick high strength fixing into concrete, brick, masonry, block-work, rock or other material of sufficient strength to take the load required of the fixing. ANCHORFIX CAPSULE can be fixed into horizontal and vertical surfaces, or overhead.
How to Make Awesome SlideShares: Tips & TricksSlideShare
Turbocharge your online presence with SlideShare. We provide the best tips and tricks for succeeding on SlideShare. Get ideas for what to upload, tips for designing your deck and more.
Organizing an Effective Maintenance Program for Plasticating ComponentsGlycon Corp.
Glycon Corp. is an innovator in the design and manufacturing of feed screws, barrels, non-return valves and other melt stream solutions for injection molding, extrusion and blowmolding. http://www.glycon.com/
The results of an investigation into a fatality have highlighted potential hazards that may exist in plates that had been indented during operations or in other cases. Plates on equipment, other than the excavator bucket involved in this incident, can pose similar hazards. Indentation is a major contributing factor to elastic spring back potential. Other factors may also play a role.
While the fatality occurred with a quench and tempered steel wear plate, similar hazards might exist with other metallic and non-metallic materials (e.g. stainless steel, fibreglass, mild steel, aluminium or plastic). This presentation discusses the incident, the contributing factors and ways to help prevent similar occurrences.
CHALLENGES AND CORRECTION OF MECHANICAL SEAL LEAK FULL CONTACT RING.pptxLEAK-PACK
Use of Mechanical Seals, which confines product leakage across the pump shaft with two extremely flat surfaces. visit: https://leakpack.com/challenges-correction-mechanical-seal-leak-full-contact-ring/
Bolts are widely used as critical load transferring components. Despite the importance to integrity and safety, little attention has been paid to the correct use of bolts and bolting materials.
Its very useful book for all the Mechanical Engineers, who are working production side and by this book we know the various types of gaskets and applications.
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.
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.
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.
Organizing an Effective Maintenance Program for Plasticating ComponentsGlycon Corp.
Glycon Corp. is an innovator in the design and manufacturing of feed screws, barrels, non-return valves and other melt stream solutions for injection molding, extrusion and blowmolding. http://www.glycon.com/
The results of an investigation into a fatality have highlighted potential hazards that may exist in plates that had been indented during operations or in other cases. Plates on equipment, other than the excavator bucket involved in this incident, can pose similar hazards. Indentation is a major contributing factor to elastic spring back potential. Other factors may also play a role.
While the fatality occurred with a quench and tempered steel wear plate, similar hazards might exist with other metallic and non-metallic materials (e.g. stainless steel, fibreglass, mild steel, aluminium or plastic). This presentation discusses the incident, the contributing factors and ways to help prevent similar occurrences.
CHALLENGES AND CORRECTION OF MECHANICAL SEAL LEAK FULL CONTACT RING.pptxLEAK-PACK
Use of Mechanical Seals, which confines product leakage across the pump shaft with two extremely flat surfaces. visit: https://leakpack.com/challenges-correction-mechanical-seal-leak-full-contact-ring/
Bolts are widely used as critical load transferring components. Despite the importance to integrity and safety, little attention has been paid to the correct use of bolts and bolting materials.
Its very useful book for all the Mechanical Engineers, who are working production side and by this book we know the various types of gaskets and applications.
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.
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.
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.
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.
Online aptitude test management system project report.pdfKamal Acharya
The purpose of on-line aptitude test system is to take online test in an efficient manner and no time wasting for checking the paper. The main objective of on-line aptitude test system is to efficiently evaluate the candidate thoroughly through a fully automated system that not only saves lot of time but also gives fast results. For students they give papers according to their convenience and time and there is no need of using extra thing like paper, pen etc. This can be used in educational institutions as well as in corporate world. Can be used anywhere any time as it is a web based application (user Location doesn’t matter). No restriction that examiner has to be present when the candidate takes the test.
Every time when lecturers/professors need to conduct examinations they have to sit down think about the questions and then create a whole new set of questions for each and every exam. In some cases the professor may want to give an open book online exam that is the student can take the exam any time anywhere, but the student might have to answer the questions in a limited time period. The professor may want to change the sequence of questions for every student. The problem that a student has is whenever a date for the exam is declared the student has to take it and there is no way he can take it at some other time. This project will create an interface for the examiner to create and store questions in a repository. It will also create an interface for the student to take examinations at his convenience and the questions and/or exams may be timed. Thereby creating an application which can be used by examiners and examinee’s simultaneously.
Examination System is very useful for Teachers/Professors. As in the teaching profession, you are responsible for writing question papers. In the conventional method, you write the question paper on paper, keep question papers separate from answers and all this information you have to keep in a locker to avoid unauthorized access. Using the Examination System you can create a question paper and everything will be written to a single exam file in encrypted format. You can set the General and Administrator password to avoid unauthorized access to your question paper. Every time you start the examination, the program shuffles all the questions and selects them randomly from the database, which reduces the chances of memorizing the questions.
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Understanding Inductive Bias in Machine LearningSUTEJAS
This presentation explores the concept of inductive bias in machine learning. It explains how algorithms come with built-in assumptions and preferences that guide the learning process. You'll learn about the different types of inductive bias and how they can impact the performance and generalizability of machine learning models.
The presentation also covers the positive and negative aspects of inductive bias, along with strategies for mitigating potential drawbacks. We'll explore examples of how bias manifests in algorithms like neural networks and decision trees.
By understanding inductive bias, you can gain valuable insights into how machine learning models work and make informed decisions when building and deploying them.
A review on techniques and modelling methodologies used for checking electrom...nooriasukmaningtyas
The proper function of the integrated circuit (IC) in an inhibiting electromagnetic environment has always been a serious concern throughout the decades of revolution in the world of electronics, from disjunct devices to today’s integrated circuit technology, where billions of transistors are combined on a single chip. The automotive industry and smart vehicles in particular, are confronting design issues such as being prone to electromagnetic interference (EMI). Electronic control devices calculate incorrect outputs because of EMI and sensors give misleading values which can prove fatal in case of automotives. In this paper, the authors have non exhaustively tried to review research work concerned with the investigation of EMI in ICs and prediction of this EMI using various modelling methodologies and measurement setups.
2. Permanent Packer Performance
• Hoppman and Walker, PEI, May 1995
__________________________________
• Rating envelope - regions of stress
• catastrophic failure - packer no longer able
to maintain seal integrity
• non-catastrophic - limit the ability of the
packer to function as designed
3.
4. Packer Failure Causes
• Body Collapse
– ID of seal bore contacts OD of seal assembly
– Caused by differential pressure above or below
the packer, or by packer and tubing forces; or
by a combination of the two.
– Virtually all of the pressure and forces exerted
on the packer are locked in by the slip system.
The body remains collapsed even after the
forces are removed.
5. Packer Failure Causes
• Body Collapse (continued)
– Since pressures and forces are dependent on the cross-
sectional area of the packing element, they are
dependent on the casing ID.
– Each size packer is used in a range of casing ID’s
(weights)
– As casing ID increases, the expansion of the packing
element must
be greater - adversely
affects packer rating.
6. Consequences of Body Collapse
• Not a catastrophic failure (sealing not
compromised)
– often cannot remove seals from packer bore
– Safe Operating Region - 3 on envelope
7. Packer Failure Causes
• Packing Element System Failure
– failure of the element occurs when the element
extrudes through the back-up system
8. Packer Failure Causes
• Causes of packing element failure
– temperature of seal material exceeded
– excess pressure on element causes extrusion
– chemical attack (breakdown or softening)
– gas permeation and sudden decompression causing
blisters and seal ruptures
– backup system failures
– seal bore corrosion or erosion leaves sealing surface
rough
9.
10. Consequences of Seal Failure
• Catastrophic failure (sealing compromised)
– seal is lost - leaks may cause other problems
– often cannot remove seals from packer bore
(baked, hardened, fused, etc.)
– Safe Operating Region - 4 on envelope
11. Packer Failure Causes
• Pin collapse at the body/guide connection
– like a body collapse, collapse of the pin connection at
the lower connection with maximum deflection at the
middel of the lower thread.
– Differential pressure can occur when the seals are in a
seal bore extension below packer or if a wireline plug is
set in a nipple in the tailpipe.
– Consequences - non-catastrophic
– Region - 5 on envelope
12.
13. Packer Failure Causes
• Body to Guide Failure
– fails at thread relief or in thread itself.
– Thread relief failure occurs when the yield
strength of the body is exceeded.
– Thread failure occurs when the tensile loads
exceed the shear or bearing strength of the
threads.
14. Packer Failure Causes
• Body to Guide Failure (continued)
– Sources of the loads are pressure differential below the
packer, packer-to-tubing tensile forces or a combination
of the two.
– If both forces are present, their effects are additive.
• Failure is catastrophic - body becomes free to moveupward
through the packer and the guide is free to fall downhole.
• Safe Operating Region - 2
15. Packer Failure Causes
• Anchor Attachment Failure (failure of left
hand square thread)
– can occur only when a tubing anchor seal
assembly is used. Tread can fail in the tread
relief, in the tread, or due to swelling of box.
– Thread relief fails when body tensile exceeded
– Threads fail when bearing strength exceeded
– Swelling occurs when elastic burst limit of the
wall is exceeded
16. Packer Failure Causes
• Anchor Attachment Failure (continued)
– Consequences -
Failure in thread relief or threads is catastrophic -
anchor seal pulls out of the packer - pressure integrity is
lost.
Most likely effect of a box swelling failure is loss of
contact area between anchor and packer. If box swells
to the point where anchor can pull out - the failure will
be catastrophic.
– Safe Operating Region - 1
17. Packer Failure Causes
• Body Lock Ring System Failure
– The body lock ring fails when the stresses in the threads
exceed the material shear or bearing strength in the ring
or its supporting elements.
– Consequences - body is free to float, even though slips
continue to trap the packoff force. When pressure
cycles - leads to reciprocation and wear on packing
element - produces a leak.
– No pressure cycle - no serious consequences.
– Safe operating Limit - region 6.
18. Packer Failure Causes
• Bearing Failure
– occurs with locator and anchor seal assemblies.
– Bearing failure at contact of anchor/locator and
packer occurs when compressive stress exceeds
bearing strength of the material.
– An added force may be stress in body and seal
sub generated by radial component of the
contact forces (this is caused strictly by
compressive packer-to-tubing forces).
19. Bearing Failure
• Consequences
– Generally, only result is deformation of the
contact surface of each part.
– In cases of extreme, high set-down loads, the
seal assembly can be swaged into the bore or
body of the packer.
• Bearing failure is represented in the
envelope as region 6
20. Using The Packer Envelope in
Well Design
• Plot data from tubing movement and stress
programs on a packer envelope to determine
if the loads fall in the safe area during initial
setting, production, stimulation and kill
operations.
21.
22. Using The Packer Envelope in
Well Design
• The envelope can be used to determine optimum
material for packer construction.
• Check outer limits of the packer for it’s casing
weight range.
• All future operations must be accounted for in a
permanent packer design.
• Failure rate for permanent packers is less than 1%.