Ladders are used to move between different levels but can lead to accidents if not used properly. The document provides guidance on selecting the right ladder for the job, inspecting ladders for defects, safely setting up and climbing ladders, and properly storing ladders. Key safety practices include maintaining three points of contact, not standing higher than the third rung, and placing the ladder feet a quarter of the working length from the structure.
Material Handling accidents are growing our industries , it's main reason is untrained people , over confidence , working pressure etc , This PPT make very good training material ...
Material Handling accidents are growing our industries , it's main reason is untrained people , over confidence , working pressure etc , This PPT make very good training material ...
Falls from ladders are a leading cause of serious and fatal injuries in the construction industry.
They PPT are to help you:
Understand the types of ladders used in site ladder requirements.
understand how to correct or eliminate fall hazards on your job sites related to ladder use.
6th International Conference on Machine Learning & Applications (CMLA 2024)ClaraZara1
6th International Conference on Machine Learning & Applications (CMLA 2024) will provide an excellent international forum for sharing knowledge and results in theory, methodology and applications of on Machine Learning & Applications.
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.
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
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.
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.
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.
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.
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.
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.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
RAT: Retrieval Augmented Thoughts Elicit Context-Aware Reasoning in Long-Hori...
Ladder safety
1. Ladder
Ladders are used when employees need to move up
or down between two different levels. Slips, trips,
and falls are significant contributors to accidents.
Slips, trips, and falls can occur when wrong ladder
selection is made and when improper climbing
techniques and/or defective ladders are used.
2. Appropriate ladders must be used for the
corresponding job and defective ladders will
not be used. When hazards exist that cannot
be eliminated, then engineering practices,
administrative practices, safe work
practices, Personal Protective Equipment
(PPE), and proper training regarding ladders
must be implemented.
3. Basic Ladder Safety Rules:
•All wood parts must be free from sharp edges and
splinters; sound and free from accepted visual
inspection from shake, wane, compression failures,
decay, or other irregularities.
•Ladders must be maintained in good condition at all
times, the joint between the steps and side rails must
be tight, all hardware and fittings securely attached,
and the movable parts shall operate freely without
binding or undue play.
•Metal bearings of locks, wheels, pulleys, etc., shall
be frequently lubricated.
•Ladders must be inspected frequently and those
which have developed defects must be withdrawn
from service for repair or destruction and tagged or
marked as "Dangerous, Do Not Use."
•Ladders with broken or missing steps, rungs, or
cleats, broken side rails, or other faulty equipment
shall not be used; improvised repairs are not allowed.
4. Step ladder - a self-supporting portable ladder, nonadjustable in length, having flat steps and a hinged
back. Its size is designated by the overall length of the ladder measured along the front edge of the
side rails.
Single ladder - a non-self-supporting portable ladder, nonadjustable in length, consisting of but one
section. Its size is designated by the overall length of the side rail.
Extension ladder - a non-self-supporting portable ladder adjustable in length. It consists of two or
more sections traveling in guides or brackets so arranged as to permit length adjustment. Its size is
designated by the sum of the lengths of the sections measured along the side rails.
Sectional ladder - a non-self-supporting portable ladder, nonadjustable in length, consisting of two or
more sections of ladder so constructed that the sections may be combined to function as a single
ladder. Its size is designated by the overall length of the assembled sections.
Trestle ladder - a self-supporting portable ladder, nonadjustable in length, consisting of two sections
hinged at the top to form equal angles with the base. The size is designated by the length of the side
rails measured along the front edge.
Extension trestle ladder - a self-supporting portable ladder, adjustable in length, consisting of a trestle
ladder base and a vertically adjustable single ladder, with suitable means for locking the ladders
together. The size is designated by the length of the trestle ladder base.
Special-purpose ladder - a portable ladder which represents either a modification or a combination of
design or construction features in one of the general-purpose types of ladders previously defined, in
order to adapt the ladder to special or specific uses.
Trolley ladder - a semi-fixed ladder, nonadjustable in length, supported by attachments to an overhead
track, the plane of the ladder being at right angles to the plane of motion.
Side-rolling ladder - a semi-fixed ladder, nonadjustable in length, supported by attachments to a guide
rail, which is generally fastened to shelving, the plane of the ladder being also its plane of motion.
Ladders must not be used in a horizontal position as platforms, runways, or scaffolds. Place portable
ladders so that the side rails have a secure footing. The top rest for portable rung and cleat ladders
must be reasonably rigid and shall have ample strength to support the applied force.
5. Safe Ladder Use:
Employees should follow certain rules when placing, ascending, and descending
ladders which include:
• Hold on with both hands when going up or down. If material must be handled, raise
or lower it with a rope either before going down or after climbing to the desired level.
• Always face the ladder when ascending or descending.
• Never slide down a ladder.
• Be sure shoes are not greasy, muddy, or slippery before climbing.
• Do not climb higher than the third rung from the top on straight or extension ladder,
or the second tread from the top on stepladders.
• Carry tools on a tool belt not in the hand.
• Never lean too far to the sides. Keep your belt buckle within the side rails.
• Use a 4 to 1 ratio when leaning a single or extension ladder. (place a 12 foot
ladder so that the bottom is 3 feet away from the object the ladder is leaning
against.)
6. • Inspect ladder for defects before using.
• Never use a defective ladder. Tag or mark it so that it will be repaired or
destroyed.
• Never splice or lash a short ladder together.
• Never use makeshift ladders, such as cleats fastened across a single rail.
• Be sure that a stepladder is fully open and the metal spreader locked before
starting to climb.
• Keep ladders clean and free from dirt and grease.
• Never use ladders during a strong wind except in an emergency and then only
when they are securely fastened.
• Never leave placed ladders unattended.
• Never use ladders as guys, braces, or skids, or for any other purpose other than
their intended purposes.
• Never attempt to adjust a ladder while a user is standing on the ladder.
• Never jump from a ladder. Always dismount from the bottom rung.
7. Ladder extension:
•Place ladders on a firm, level surface and ensure the footing is
secure.
•Erect extension ladders so that the upper section rests on (e.g.,
in front of) the bottom section. This means the bottom section
"faces" a wall or other supporting surface (see figures below).
•Place the ladder feet so that the horizontal distance between
the feet and the top support is 1/4 of the working length of the
ladder. The ladder will be leaning at a 75 degree angle from the
ground.
8. •Raise and lower ladders from the ground. Ensure that locking ladder hooks are secure
before climbing.
•Erect ladders so that a minimum of 1 m (3 ft) extends above a landing platform. Tie
the top at support points.
•Brace or tie off the ladder near the base. If there is no structure to tie off to, use a
stake in the ground.
•Leave all tie-off devices in place until they must be removed before taking the ladder
down.
•Maintain the minimum overlap of sections as shown on a ladder label. Refer to safety
regulations.
Note: When working 3 metres (10 feet) or more above ground, wear a safety belt or
harness with the lanyard tied appropriately to the structure.
9. Avoid when using extension ladders:
• Do not use ladders near electrical wire.
• Do not set up or take a ladder down when it is extended.
• Do not overextend. Maintain minimum overlap of sections.
• Do not climb higher than the fourth rung from the top of a ladder.
• Do not use ladders on ice, snow or other slippery surfaces without
securing ladders' feet.
• Do not extend top section of a ladder from above or by "bouncing" on a
ladder.
• Do not leave ladders unattended.
10. Climbing a fixed ladder:
•Wait until the other person has exited before ascending or descending.
•Use the appropriate safety devices (e.g., restraint belt, traveling fixture).
•Maintain three-point contact by keeping two hands and one foot, or two
feet and one hand on a ladder always.
•Face ladder and use both hands to grip the rungs firmly.
•Place feet firmly on each rung.
•Wear footwear with heels. Ensure that footwear is in good condition.
•Clean muddy or slippery boot soles before mounting a ladder.
•Rise or lower tools and materials using a hand-line.
11. How should you set up the ladder:
Place the ladder feet 1/4 of the ladder's working length (e.g., foot to top
support point) away from the base of the structure (e.g., for every 1.2 m (4 ft )
high, the base of the ladder should be out 0.3 m (1 ft); that means one
horizontal foot from the support point).
Extend the ladder at least 1 m (3 ft) above the landing platform.
Place the ladder on a firm, level footing. Use a ladder with slip-resistant feet or
secure blocking. Brace or tie the bottom of the ladder.
Rest both side rails on the top support and secure ladder to prevent slipping.
12. What should you know about climbing portable ladders:
•Check for overhead electrical wires before setting up a ladder.
•Clear area around base and top of the ladder of debris, tools and other objects.
•Tie off yourself with a safety harness when working 3 m (10 ft) or more off the ground or when
working with both hands.
•Ensure that only one person is on a single-width ladder. Only one person is allowed on each
side of a double-width ladder.
•Maintain three-point contact by keeping two hands and one foot, or two feet and one hand on
the ladder at all times.
•Grasp the rungs when climbing a ladder, not the side rails. If your foot slips on a ladder, holding
onto rungs is easier than holding onto the side rails.
•Wear protective footwear with slip-resistant soles and heels.
•Ensure that all electrical equipment used during ladder work is in good condition and properly
grounded.
•Rest frequently to avoid arm fatigue and disorientation when the work requires you to look up
and reach above your head.
•Drape your arms over a rung and rest your head against another rung or side rail if you become
dizzy or panicky. Climb down slowly.
13. Proper way to store ladders:
•Return ladders to storage area after use.
•Store ladders where they are protected from the weather.
•Support ladders horizontally on racks. To prevent sagging, support ladders every 2 m (6 ft).
•Keep ladders clean and free of foreign materials.
•Ensure that storage areas are easy to reach.
•Keep wooden ladders in a well-ventilated location, away from dampness and excessive heat.
•Avoid long overhangs beyond support points when transporting ladders on vehicles.
•Pad racks on vehicles with soft material to reduce wear and road shocks.
•Tie ladders to each support point to reduce damage.
•Mark ladders which overhang vehicles with a red or orange flag.
•Grasp ladders near the center when carrying them.
•Use caution when carrying ladders through passageways, doorways or any place where your
view is obstructed.
•Use a partner to help carry long or heavy ladders.
•Ensure that you and your partner are on the same side when carrying a ladder. Stay in step.
Work out in advance any hand or voice signals to coordinate stopping or changing direction.
14. Avoid when storing ladders:
Do not hang ladders from rails or rungs.
Do not store materials on ladders.
Do not expose fibreglass ladders to excessive temperatures (above 93°C or
200°F).
Do not hold the front of ladders at head level when carrying them.
Do not expose plastic-reinforced ladders to excessive sunlight. Ultraviolet
light may cause the plastic resins to degrade. If the strength of the ladder is
questionable, replace the ladder.
15. When using a stepladder:
•Use a stepladder that is about 1 m (3 ft) shorter than the highest point you have to
reach. This gives a wider, more stable base and places shelf at a convenient working
height.
•Open the stepladder spreaders and shelf fully.
•Check stability. Ensure that all ladder feet are on a firm, level and non-slippery surface.
•Place a stepladder at right angles to the work, with either the front or back of the steps
facing the work.
•Keep the stepladder close to the work.
16. Continuation
Avoid pushing or pulling stepladders from the side.
Repeated sideways movement can make ladders wobbly
since they are weaker or less stable in those directions.
Face the stepladder when climbing up or down.
Keep your body centered between side rails. You have
climbed too high if your knees are above top of the
stepladder or if you cannot maintain a handhold on the
ladder.Maintain a firm grip. Use both hands when climbing.
17. When using a stepladder:
•Do not overreach. Move a stepladder when needed.
•Do not "shift" or "walk" a stepladder when standing on it.
•Do not stand, climb, or sit on the stepladder top or pail shelf.
•Do not overload. Stepladders are meant for one person.
•Do not use a stepladder as a brace or as a support for a work platform or plank.
•Do not climb a stepladder that is leaning against a wall. Use a straight ladder instead.
•Do not use stepladders on slippery surfaces.
•Do not use stepladders on soft ground where one leg may sink farther into the ground
than others.
•Do not place stepladders on boxes, unstable bases or on scaffolds to gain additional
height.
•Do not climb the back of a stepladder.
•Do not push or pull stepladders sideways.
•Do not use ladders in passageways, doorways, driveways or other locations where a
person or vehicle can hit it. Set up suitable barriers or lock doors shut.
18. Properly set-up and use the ladder in
accordance with safety instructions and
warnings. Wear shoes with non-slip soles.
Center body on the ladder and
keep belt buckle between the rails
while maintaining a firm grip.
Haul materials with a line rather than
carry them up an extension ladder.
Use extra caution when carrying
anything on a ladder. Climb facing the ladder, move one step at
a time and firmly set one foot before
moving the other.
Move materials with extreme caution so as
not to lose bal
Have another person help with a heavy
ladder. Have another person hold the
ladder while you are working on it.
19. DON'T stand above the second step from
the top of a stepladder or the fourth rung
from the top of an extension ladder.
DON'T climb a closed stepladder. DON'T
climb on the back of a stepladder. DON'T
stand or sit on a stepladder top or pail
shelf.
DON'T climb a ladder if you are not
physically and mentally up to the task.
DON'T place the base of an extension
ladder too close to or too far away from the
building.
DON'T over-reach, lean to one side or try
to move a ladder while on it. Climb down
and then reposition the ladder closer to
your work.
DON'T exceed the maximum load capacity or
duty rating of a ladder. DON’T permit more
than one person on a single-sided stepladder
or an extension ladder.