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Web development

Web development, also known as website development, refers to the tasks associated with creating, building, and maintaining websites and web applications that run online on a browser. It may, however, also include web design, web programming, and database management.

Use of web development:

Web development can help businesses interact with their customers and meet their needs more conveniently. Customers can use a website to learn about a company's offerings, make purchases, provide feedback, and contact customer service.

Benefits Of Web Development

User-Friendly Design Interface.

Ease of Navigation.

SEO-Friendly Website.

Reach More Customers.

Build Exceptional yet Functional Design of Website.

Boosts Sales and Revenue.

Mobile-Friendly and Responsive.

Faster Loading Website.

Three types of web development:

There are three main types of web development: front-end development, back-end development, and full-stack development.

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Dust Cleaning in AC

An air conditioner is an essential appliance that keeps our homes cool during those warmer or hotter days of the year. Air conditioner cleaning is vital to maintain its efficiency and longevity. Regular air filter cleaning and AC maintenance can help prevent common AC problems and keep your indoor environment comfortable and healthy. In this article, we will provide a step-by-step guide on how to clean your air conditioner, including its filter, tips on keeping your outdoor unit in good health, and other tasks that are best left to a trained service technician, like coil cleaning.

An introduction to air conditioner cleaning

A clean air conditioner ensures that the unit functions properly, reduces energy consumption, and prolongs its lifespan. This guide will provide air conditioner maintenance tips, and common mistakes to avoid during the cleaning process.

Overview of the air conditioning cleaning process

The cleaning process for air conditioners involves several steps. This AC maintenance checklist includes cleaning the air filters, and the best way to approach maintaining coils, blower motor, and fan blades.

Make sure to turn off the power of the unit before starting the cleaning process to avoid any electrical accidents.

It’s important to note that while you can perform many of these tasks, it is always best to get a trained service technician to perform regular maintenance on your air conditioning unit, this can save you money in the long run. A qualified technician can identify any potential problems and fix them before they become major issues. So, while cleaning and maintenance yourself can be helpful in keeping your unit in good condition, it’s always a good idea to rely on a professional for more complex tasks and regular upkeep. It’s worth noting that in some countries, and depending on the type of air conditioner, regular checks up a professional are mandatory.

Cleaning solution for air conditioner servicing

A mild detergent mixed with water is suitable for cleaning most air conditioner components. You can also purchase specialized cleaning solutions for AC cleaning from your local home improvement store.

If you prefer a more natural solution, you can also make a DIY cleaning solution using water, vinegar, and baking soda. Mix one cup of vinegar and half a cup of baking soda in a gallon of water. This solution can be used to clean the air filters, coils, and drain pan.

Vacuum cleaner

A vacuum cleaner is great for removing dirt and debris from the unit. Use a vacuum cleaner with a brush attachment to remove dirt and debris from the air filters, coils and fan blades.

Soft brush

An additional hand held brush is useful for hard to reach and sensitive areas, such as coils. By using a soft-bristled brush, you can avoid damaging the delicate parts of the unit.

Now that we have an idea of the tools you’ll need, let’s take a look at the different components that require cleaning and how to do it:

How to Clean Air Filters in Your Air Conditioner

Filters (also known as pre-filters) are an important component of air conditioners that trap dust, dirt, and debris to prevent big particles from entering and damaging the indoor unit. Some air conditioners, such as airHome and many Hitachi air conditioners, also include air purifying filters. These extra filters are dedicated to improve the indoor air quality of the room, as they can trap finer particles and/or inhibits pollutants thanks to their coating. Cleaning air filters is a vital step in AC maintenance, because when these air filters is clogged, the cooling capacity of the AC decreases and it might consume more energy to provide the same cooling output as before.

We recommend cleaning filters before the start of the cooling or heating season and then inspecting and cleaning the filters every 2 weeks during these seasons. However, it’s always best to consult your AC’s user manual for individual recommendations.

For air purifying filters, it is recommended to clean them every month and, even better, change them yearly for consistent efficiency. Not all air purifying filters are washable. If that is the case, then only remove any dirt gently with a vacuum cleaner.

To clean your clogged AC filters, follow these steps:

Turn off the power to the unit.

Locate and remove the air filter, which is typically behind a grille or cover.

Use a soft-bristled brush or vacuum cleaner to remove dirt and debris from the air filter.

If the filters are washable, gently clean and rinse the air filter using a gentle cleaning solution. Water should not be above 40˚C to avoid filter shrinking.

Allow the air filter to dry completely in a shaded spot out of the sun to avoid damage before reinserting them into the unit.

On the other hand, If the filters are not washable or are damaged, be sure to replace them with new filters.

A large number of air conditioners, including our latest generation air Home series, inform the users when it’s time to clean the filter by a symbol appearing on the remote controllers. Other series, like Takeshi, a model available in India, have a small LED light lighting up on the surface of the indoor unit as a filter cleaning reminder.

Coils and Air conditioning cleaning

Coils are crucial components of air conditioners responsible for transferring heat. There are two types of coils in an air conditioner: evaporator coils and condenser coils.

What are coils in air conditioners?

Coils are the heat exchanging component of air conditioners that transfer heat between the air and the refrigerant gas (refrigerant gas is circulating between indoor and outdoor units). During cooling operation, the evaporator coils (inside the indoor unit) transfers heat from the indoor air to the refrigerant gas, while the condenser coils (inside the outdoor unit) releases the heat to the outside. Over time, these coils can become clogged, reducing their efficiency, and causing the unit to work harder, which will ultimately affect your energy costs.

How to clean evaporator coils

To help keep the evaporator coils clean, the exclusive FrostWash technology, available with many models of Residential Air Conditioners, can do it for you automatically. Learn more about FrostWash here. However, if your air conditioner does not have FrostWash, it is best to consult a professional as this is a delicate job. These are the general steps that are taken to clean a unit’s coils:

Turn off the power to your air conditioner.

Locate the evaporator coils, which are typically found inside the indoor unit or air handler.

Carefully remove the access panel or cover to expose the coils.

Use a vacuum cleaner with a soft brush attachment to remove dust and debris from the coils gently.

Apply a no-rinse coil cleaner or a mild detergent and water solution to the coils, allowing it to sit for a few minutes.

If necessary, use a soft brush to gently scrub any stubborn dirt.

Wipe the area with a clean cloth and replace the access panel or cover.

How to clean and maintain the outdoor unit

Depending on the location of the outdoor unit, this is a task best done by a professional. However, if you have clear access to the unit here are the tasks that are safe to do:

Clean the outer casing of the unit to remove any buildup of dirt

Make sure the air outlet is not obstructed by plants, dirt or debris to clear the way for the unit to operate effectively

If the fan or coils require cleaning, again, this is best left to a professional to do to avoid any potential damage to the unit. On air conditioning systems, some models feature DuraSpin functionality to rotate the fan in reverse direction, so accumulated dust can detach from the fan blades

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Geotechnical Engineering

Geotechnical engineering is the study of the behavior of soils under the influence of loading forces and soil-water interactions. This knowledge is applied to the design of foundations, retaining walls, earth dams, clay liners, and geosynthetics for waste containment.

Basic of geotechnical engineering:

Geotechnical engineering is an area of civil engineering that focuses on the engineering behaviour of earth materials. Using the principles of soil and rock mechanics, this subdiscipline of geological engineering uses knowledge of geology, geophysics, hydrology and more.

Four types of Geotechnical:

Geotechnical testing is conducted by site characterization, laboratory testing, and professional interpretation of data obtained to complete the design and construction of the site improvement. Tests generally fall into 4 categories, test pits, trenching, boring and in situ testing.

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CTOD test

CTOD test is one of test methods to determine fracture toughness (fracture resistance) of a material with a crack, and a test to determine crack tip opening displacement to generate unstable fracture (limit CTOD value).

Test Procedure:

Preparation of test piece → Introduction of a fatigue pre-crack → CTOD testing → Appearance of fracture surface → Measurement of fracture surface → Evaluation → Preparation of report

We can provide one-stop service for the above procedure from test piece preparation to reporting.

Fracture toughness testing:

Fracture toughness tests measure a material’s ability to resist the growth or propagation of a pre-existing flaw. The flaw or defect may be in the form of a fatigue crack, void, or any other inconsistency in the test material. Fracture toughness tests are performed by machining a test sample with a pre-existing crack and then cyclically applying a load to each side of the crack so that it experiences forces that cause it to grow. The cyclic load is applied until the sample’s crack grows. The number of cycles to fracture is recorded and used to determine the material’s fracture growth characteristics.

Purpose of fracture toughness testing:

Fracture toughness is the stress that causes a pre-existing crack or flaw to grow or propagate. It is an important material property in the manufacturing industry, since the presence of flaws is not completely avoidable. The stress intensity factor, which is a function of the flaw size, geometry, and loading, is used to determine a material’s fracture toughness. A material’s stress intensity factor and fracture toughness are related to one another in the same manner that stress and tensile stress are related to each other.

Types of fracture toughness tests:

For the majority of fracture toughness tests there are three different modes of fracture for crack propagation. Mode 1 requires that the applied load be in the normal direction of the crack plane. In mode 2 the load is applied along the length of the crack plane. Finally, for mode 3 the load is applied across the width of the crack plane. Generally there are two different configurations for the test sample: single edge notch bend (three point bending) and compact tension. A three point bending specimen has the initial crack located at the midsection on the opposite side from the point where the midsection load is applied with opposing points of force located at each end on the same side as the crack. A compact tension specimen is oriented so the load is applied on each side of the crack in a way that extends the width of the crack.

Types of materials tested with fracture toughness tests:

Nearly all manufactured materials will contain defects, flaws, or cracks to some magnitude and may experience fracture due to these inconsistencies, and when or if this does occur the fracture toughness of that material will be exhibited. The materials that are most commonly tested for fracture toughness are similar to those tested in fatigue tests but have slightly different orientations. These materials include metals, plastics, ceramics, and composites among others as well as many other rigid substrates that may contain defects.

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Hydrogen-induced cracking test

Hydrogen Induced Cracking (HIC) is a type of wet H2S cracking caused by a high hydrogen concentration in metals. Atomic hydrogen diffuses into a metal structure as part of the procedure. HIC cracking occurs parallel to the surface in the hoop stress direction.

Purpose of hydrogen-induced cracking test:

In essence, HIC testing is actually an evaluation of the steel for susceptibility to hydrogen embrittlement. The test procedure involves the evaluation of the resistance of pressure vessel steel plate and pipework steels to hydrogen-reduced cracking caused by hydrogen absorption from aqueous sulfide corrosion.

Some terminology for hydrogen-induced cracking are:

Hydrogen Damage

Hydrogen Embrittlement

Hydrogen Blistering

Delayed Cracking

Lamellar Tearing

Underbead Cracking

Stepwise Cracking

Hydrogen-Induced Cracking Process

The HIC process in a wet H2S environment begins with the creation of atomic hydrogen, which diffuses throughout the metal or alloy and gathers at voids or cracks within the metal structure. When these hydrogen atoms merge to create a hydrogen molecule, they generate a lot of pressure inside the cavity. The H2S drives these hydrogen atoms into the metal structure, reducing the metal’s ductility and tensile strength. This mechanism decreases metal ductility, resulting in the formation of successive internal cracking, a procedure known as hydrogen-induced cracking.

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Corrosion Test

Corrosion Testing determines the resistance of materials to corrosion under certain environmental conditions, including temperature, humidity, and salt water.

Corrosion testing Method:

Two common electrochemical methods for corrosion testing are potentiodynamic polarization and electrochemical impedance spectroscopy (EIS). Potentiodynamic polarization determines the corrosion potential and corrosion rate of a material by measuring its current response to a range of applied potentials.

Purposes of corrosion testing:

Corrosion testing is generally performed to evaluate materials for a specific environment or to evaluate means for protecting a material from environmental attack.

Importance of corrosion test:

Corrosion testing can be used to anticipate a material's resistance to corrosion, compare different materials, and evaluate a material's behavior in a specific corrosive environment.

Different types of corrosion tests:

There are three general methods of corrosion testing: service history, field performance, and accelerated corrosion tests. Service history over a long period of time is the most reliable and available, but the data may not reflect the exact conditions the material is exposed to currently.

Best test for corrosion:

There are several ways to conduct corrosion tests; however, the salt spray test is the most preferred method for testing resistance to corrosion. Salt spray assessment accurately estimates the inhibitor's efficiency in reducing corrosion rate and understanding the corrosion mechanism.

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Salt Spray Test

Salt spray testing is a method of checking the corrosion resistance of coatings and materials used to manufacture products such as fasteners. During salt spray testing, an accelerated corrosive attack is produced in order to better predict how well the coating protects the metal.

Salt spray testing is typically used to produce quick comparisons between expected and actual corrosion resistance. In reality, there is only a weak correlation between the coating duration in the test and its actual expected life. This is due to the fact that many external factors influence corrosion as it is not a simple process.

For this reason, salt spray testing is most effective when used on samples to determine a pass-or-fail grade and compare it to expectations. This is typically done in a quality control role or to test for the effectiveness of a particular production process.

Salt spray testing has long been the standardized corrosion test method, due to the fact it's quick, repeatable, and relatively inexpensive. 

Salt spray testing is one popular test that is performed to assess the surface coating of the product. In this test, the specimen is exposed to the saline fog at the temperature of approx. 37°C. This is an accelerated test and helps in assessing the behavior of the product in some hours.

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 Topographic survey

Topographic surveying. determining the relative locations of points (places) on the earth's surface by measuring horizontal distances, differences in elevation, and directions. topos (Gr. ): place; topographic maps give the locations of places (observable features); they serve as base maps.

An objective of topography is to determine the position of any feature or more generally any point in terms of both a horizontal coordinate system such as latitude, longitude, and altitude.

A topographic survey locates all surface features of a property and depicts all-natural features and elevations. In essence, it is a 3-dimensional map of a 3-dimensional property showing all natural and man-made features and improvements. Specifically, it shows their location, size, height, and any changes in elevation.

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Mobile App Development

Mobile app development:

 The process of  developing a different  type of application and other software for smart phones and tablets and other digital products mainly used for android and iOS application.

Types of mobile app development:

Educational apps

Lifestyle apps

Social Media apps

Productivity Apps

Entertainment Apps

Game apps

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Digital Marketing

Digital Marketing –( online marketing )

                 The promotion of brands to connect with potential customers using the internet and other forms of digital marketing.

Marketing:

                        Marketing is the activity, set of institutions, and processes for creating, communicating, delivering, and exchanging offerings that have value for customers, clients, partners, and society at large. The process of getting people interested in your company's product or service

4-advantages of digital marketing:

Global Reach

Local Reach

Lower cost

Easy to learn.

Effective Targeting

Multiple strategies

Multiple content types

4- pillars of Marketing Strategy:

            Product, Price, Place and Promotion

categories of digital marketing:

SEM- Search Engine Marketing

SMM - Social Media Marketing

SEO – Search Engine Optimization

CM – Content Marketing

IM  - Influencer Marketing

5c’s of digital marketing:

Customer

Cost

Convenience

Communication

Context

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Freight Service

Freight logistics:

  Freight Logistics is the overseeing and management of a cost-effective operation and the delivery of goods. It combines logistics experience, human resources, and knowledge to ensure the smooth journey of goods between carriers and shippers.

  Freight shipping is the transportation of goods, commodities, and cargo in bulk goods Truck transportation.

Truckload freight Services:

                             Truckload (Full Truckload Shipping or FTL) means that one shipping trailer contracts to one Shipper, customer, or consignee. FTL Shipments typically move from Point A to B. Less than a truck Load(LTL) is mixed in their trailer that contains freight from 2 or more shippers, customers, or consignees.

 Full Truckload:

Full truckload is a transportation mode where cargo is transported in a truck trailer that has been fully loaded

Benefits of freight service:

                Freight transportation offers several advantages for business, including improved accessibility, greater efficiency, cost effectiveness, flexibility, improved reliability, and reduced environmental impact.

Different types of freight system:

There are modes of transportation to consider for your freight shipping logistics

Less than truckload freight. Less than truckload(LTL) is one of the most popular forms of freight shipping it is an extremely cost-effective, reliable, and timely service

Full-truck load freight

Intermodal rail freight

Air freight

Ocean freight

Expedited freight

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Logistics Management

Benefits of Logistics Management:

The aim of effective logistics management is to improve the efficiency of the operations, ensuring customer satisfaction and increase productivity. These tips and strategies are necessary for process optimization

Visibility: Logistics management affords greater visibility into the supply chain

Reduced overhead

Improve customer experience

Preventing Loss

Support Expansion

Competitive Edge

Steps of Logistics:

These are the five most common logistics processes: procurement, storage, inventory management, order picking and dispatch, and transport and delivery of goods.

The logistics cycle should be viewed as a complete list of activities from the procurement of goods or materials to their final delivery to customers. The following main activities form a logistics cycle: Procurement. Transport and delivery. Warehousing – receipt and storage.

Logistics is an important link in the supply chain as it facilitates the movement of goods from suppliers to manufacturers and then to sellers or distributors and eventually to buyers.

A supply chain is essentially a series of transactions. If logistics fails, the supply chain fails and transactions grind to a halt.

Global Logistics management:

Global logistics management professionals are responsible for problem- solving challenges related to supply and demand while leading business operations in distribution and shipping, a critical element for international companies.

Advantages of global logistics:

Competitive pricing

Wider product ranges

Fulfill larger scale orders

Reach new marketplaces

Time and resources

Impact of global events

Communication

Reputation

Methods of managing logistics:

Ordering, receiving, and storing inventory across distribution centers

Tracking inventory as it moves through the supply chain

Implementing technology and automation

Building warehouse picking and packing workflows

Ensuring orders are shipped safely and on time