The future of 3D holograms comes into focus

    Smartphone-based augmented reality (AR) and the AR headset explosion will bring 3D holograms into our lives everywhere.

Meanwhile, though, the real AR hologram revolution is being ignored.


    A hologram is a 3D virtual object that is not actually there, but looks as if it were, either floating in the air or

standing on a nearby desk or table.


    The holo in the Microsoft HoloLens headset is a reference to holograms. And when we think of these future AR holograms,

we think of headsets, goggles such as HoloLens or smartphones running applications created with Apple ARKit or Google ARCore.


    Technology is increasingly becoming ubiquitous, and companies are racing to win market domination. A competitor to the

HoloLens, the Lightware headset from secretive Magic Leap, has been in the news lately, after six years of development at a

cost of $2 billion, for two reasons.


    The first is that the company unveiled the Creator Edition of the headset in December. Now we know what it looks like:

something right off the cover of a vintage sci-fi novel.


    The second reason is rampant speculation that Apple might buy Magic Leap to accelerate its own AR goggle development,

speculation driven by Apple analyst Gene Munster.





    In other 3D hologram fan headset headlines, Dell this week announced

that it will start selling, on Feb. 15, the $1,495 Meta 2 developer kits, which include the Meta 2 AR headset, for business

deployments. The company said the Meta 2 is supported by several business-class Dell Precision Workstation PCs.


   



    What are holograms good for, anyway?


    Think of 3D holographic desk fan displays as

the next step in making digital content more human-compatible.


    Humans see the world in 3D. Our computer and phone screens show us a 2D version of the world. It’s artificial.


    If I look at a concept car design on my laptop, people on the other side of the room see only the back of my laptop lid.

That is artificial, too.





    A hologram projected in the middle of the room could show a 3D concept car for all to see, as if it were a physical

object actually there.


    The biggest applications for holograms are for enterprises, such as what I described above — 3D presentations for

conference rooms and meetings.


    And while we’re deploying holograms in the conference room, we might as well beam live remote meeting participants into

the meeting — holographic telepresence.


    Holograms will also dramatically improve training, design and visualization in enterprises. The ability to look at, zoom

in on and manipulate 3D versions of in-progress designs radically enhances the design process.





    And, of course, in the marketing department, holograms will thrill customers with experiential marketing campaigns and

customer experience interactions.


    We’re already seeing applications for all these emerging for smartphone, tablet and headset AR. But the real benefits

come when holograms are liberated from such devices.


   



    The definition of the LED conformal screen, that is, what shape the building is, what shape the LED screen will be made

into. It belongs to the creative folding  LED creative screen series,

which is characterized by a dot-shaped array. It has the characteristics of transparency, flexibility and lightness. Not only

that, its screen can be bent, folded, rolled, suspended and so on.


    The emergence of LED conformal screens has broken the large screen splicing system that can only be spliced into a cold

rectangular shape. It is a creative LED solution that can be freely spliced into various shapes to display some highly

creative content, which can not only attract the attention of the audience for the first time to achieve better publicity

effects but also better expand the application scope of large-screen splicing. At present, LEDYARD LED bendable

LED conference screens have been used in many

areas at home and abroad, including building advertising lighting, real-life 3D art, spherical screens, sailing screens,

curved screens and so on.


   



    The initial LED screen was only used for displaying and advertising. With the increasing demand in the market, regular

shapes (like squares) could no longer satisfy the customers. Flexible LED screens came into being. LED flexible screen, as the name implies, is soft and can be bent arbitrarily within a

certain range without affecting the display, while ordinary LED displays are hard and cannot be bent.


   



    If it can bend, LED column screen can be made

into various shapes, such as common spherical, rhombic, cylindrical, triangular, tree-shaped, streamer-shaped and other

shapes. We know that the LED screens can be seamlessly spliced, so of course, there is no gap in the LED mesh. The shape is

perfect!

The story of tissue: the evolution of a vital consumer product

    Toilet and facial tissue are something that most of us take for granted, but many may be surprised to learn they are

actually relatively new inventions. However, while

white toilet paper itself dates back less than a century, there is a much longer record of humans relying on paper for

personal cleansing.



    It perhaps comes as little surprise that the Chinese, credited with first developing the pulp papermaking process more

than 2000 years ago, are also believed to be the first to use paper for personal cleansing. The first recorded use of toilet

paper dates back to 6th century China. During the Tang Dynasty, three hundred years later, an Arab traveler in the region

commented that the Chinese do not wash with water when they have done their necessities; but they only wipe themselves with

paper.


    Still, it would take several centuries before the world saw anything resembling toilet paper as we know it today. For

many years, people turned to other paper instead. Following the rise of printing, for example, many people relied on

repurposed newspapers and books.


    The introduction of toilet paper as a commercial product did not occur until 1857. In that year, American inventor Joseph

Gayetty began selling packets of paper in individual sheets, marketed as Gayetty’s Medical Paper. Others began to eventually

produce this variety of brown, rough and thin paper in countries around the world. In fact, many readers may have personal

memories of this high quality toilet paper

, which could still be found in certain parts of Europe as late as the 1970s.


   



    Folds that changed everything


    The first tissue products as we had recognize them today were invented and produced by the American paper manufacturer

Kimberly-Clark, who developed cellulose as a replacement for cotton in sanitary products during World War I. Their major

innovation was the creping process, in which paper was micro-folded in the course of production. This breaks down the

rigidity of the paper and increases the volume, making it both softer and more absorbent than the paper created by Joseph

Gayetty 60 years earlier.


    In 1920, Kimberly-Clark released the world's first commercially available tissue product, the sanitary pad Kotex. It

was made possible thanks to the new creping process and the work of two men at the company: Frank Sensenbrenner and a young

Austrian immigrant named Ernst Mahler. By layering several sheets of tissue, they developed a soft pillow with much greater

absorbency than the traditional cotton wool. Four years later, Kimberly-Clark followed the success of Kotex with the

disposable handkerchief Kleenex, which remains the market-leading brand for facial tissue paper today.


   



    Customer experience drives development


    In the years following the advent of the creping process, tissue products, such as

soft kitchen tissue paper,

paper hand towels,

jumbo rolls toilet paper white,

etc., quickly became popular with consumers, leading many manufacturers to take notice. From the United States, tissue

production expanded to Europe in the first half of the twentieth century and ultimately to every other part of the globe as

well.


    Tissue production continually evolved throughout this period to keep up with increased market demand and to provide an

improved customer experience. As today, manufacturers worked to meet shifting consumer tastes, and

paper dinner napkin industry trends came and

went along with other consumer fads. One memorable example was the pastel-colored toilet rolls designed to match bathroom

interiors that gained popularity in the 1960s.


    However, a constant in development has been the search for production methods that secure paper that is both strong and

soft. For toilet as well as white facial tissue

, strength and absorbability are essential to ensuring the paper can do the intended job while keeping hands clean and

dry. At the same time, it also needs to avoid causing discomfort in delicate areas of the body. As

mini pocket tissues use has become more

widespread – first in the Americas and Europe and more recently in other parts of the world – consumers have come to demand

increasingly softer and stronger sheets.

What Is Tomato Paste & How to Use It

    Tomato paste is an essential pantry staple to have on hand for

whipping up delicious, deeply flavored meals-it can transform a ho-hum recipe, like a soup or sauce, into something really

special. A little bit goes a long way, though, which is why you will most often find tomato paste in small 6-ounce cans. With

most recipes only calling for a tablespoon or two of tomato paste, even if you buy the tiniest can, you will still have so

much leftover. You can always refrigerate the rest (and hope you remember to use it before it starts growing mold) or freeze

it for use down the road (read more on the best way to do this below). Or, better yet, you could make the shift from

canned tomato paste to tomato paste in a tube

(maybe our favorite option). Here is what you need to know about tomato paste in general, why you should try buying it in a

tube, and what to make once you have it.


   



   



    What Is Tomato Paste?


   
        First things first. What is tomato paste, anyway? Tomato paste is basically super-concentrated tomato sauce. If you

take tomatoes and cook them down, strain the skin and seeds from the mixture and continue to cook the sauce down until it

forms a thick consistency, you get sachet tomato paste

. Manufactured tomato pastes often include a stabilizer, like citric acid, and salt (you can also find no-salt-added

options), and sometimes herbs and spices. There are also options for double-concentrated and triple-concentrated

tomato ketchup, meaning it is even more potent.
   
   
       

   


    Why You Need Tomato Paste in Your Pantry


   
        The benefit of using tomato ketchup sachet

over other canned tomatoes (like tomato puree, crushed tomatoes or diced tomatoes) or even fresh tomatoes, is that you

get the deep tomato flavor without all the extra water, making it great for recipes where you do not want a ton of liquid,

like meatloaf or taco filling. Tomato paste can be used to intensify flavor over time in slow-cooked recipes or can quickly

add a burst of flavor in quick 30-minute recipes for weeknights. To get the most flavor potential out of your tomato paste,

plan to add it early on in the cooking process before adding liquids like water, broth or other canned tomatoes. This way,

the tomatoes have the chance to caramelize and develop even further.
   
   
       

   


    Tomato Paste in a Tube Exists and You Need It in Your Life


   
        Yes, it exists and yes, you need to buy it. Tubed tomato paste is a convenient alternative to canned tomato paste

that lets you use just what you need, without worrying about what to do with the rest of the can. It is made the same exact

same way as the canned stuff but is packaged in a convenient squeezable tube with a screw cap that preserves the

bulk tomato paste for longer. Most tubes are 4.5 ounces and yield

9 tablespoons, which is comparable to the 6-ounce cans that contain 10 tablespoons of tomato paste. Look for tubed tomato

paste on the shelf next to the canned tomato ketchup

, or if your grocery store does not carry it, you can buy it here. While it is a little pricier than its canned

counterpart-$3.79 for a 4.5-ounce tube versus $1.19 for a 6-ounce can-you will ultimately get more value out of the tube by

wasting less.
   
   
       

   


    How to Use Tomato Paste


   
        There are so many delicious ideas for how to use tomato paste. Want to whip up a quick homemade tomato sauce? What

about a creamy tomato soup to go along with your grilled cheese? Tomato paste is a key ingredient that will add tons of

tomatoey flavor quickly. Beyond the obvious option of using 220L drum tomato paste to make a tomato-heavy recipe, like sauce or soup, you can also use tomato paste

to elevate the flavor of other recipes-like we did in this Jackfruit Sloppy Joes recipe, in the dipping sauce for these Air-

Fryer Zucchini Fries and in our Slow-Cooker Butter Chicken recipe.
   


   



    When to Use Tomato Paste in a Tube


   
        All of these recipes use tomato paste in different ways and call for just a few tablespoons, which is where tomato

paste in a tube comes in handy, so you can use just what you need.
   


    Rather than using store-bought taco seasoning that can be super high in sodium, try the homemade variation in this

stuffed sweet potato recipe that uses tomato paste to add extra flavor.

An Introduction to Machine Vision Systems

    Machine vision systems are a set of integrated components that are designed to use information extracted from digital

images to automatically guide manufacturing and production operations such as go/no testing and quality control processes.

These systems can also play a role in automated assembly verification and inspection operations through their ability to

guide material handling equipment to position products or materials as needed in a given process. They have wide applications

across different industries and can be used to automate any mundane, repetitive tasks that would become tiring to a human

inspector or operator. The use of automatic vision measuring

machine allows for 100% inspection of products or parts in a process, resulting in improved yields, reductions in

defect rates, increased quality, lower costs, and greater consistency of process results.


   



    How Machine Vision Systems Work


    To understand how a manual vision measuring machine

works, it may be helpful to envision it performing a typical function, such as product inspection. First, the sensor detects

if a product is present. If there is indeed a product passing by the sensor, the sensor will trigger a camera to capture the

image, and a light source to highlight key features. Next, a digitizing device called a frame-grabber takes the camera’s

image and translates it into digital output, which is then stored in computer memory so it can be manipulated and processed

by software.


    In order to process an image, computer software must perform several tasks. First, the image is reduced in gradation to a

simple black and white format. Next, the image is analyzed by system software to identify defects and proper components based

on predetermined criteria. After the image has been analyzed, the product will either pass or fail inspection based on the

machine vision system’s findings.


    Measurement functions of the large-stroke

coordinate measuring instrument are done through the comparison of a recorded dimension from a digital image against a

standard valve to establish a tolerance or to determine if the observed value of the dimension is within acceptable levels of

tolerance as called for in the design specification for that part.


   



    Video Motion Quality (VMQ) evaluates the relative motion quality of the distorted video generated from the reference

video based on all the frames from the two videos. VMQ uses any frame-based metric to compare frames from original video and

distorted video. It uses the timestamp of each frame to measure the intersection value. VMQ measuring machine combines the comparison value with the intersection value in the aggregate

function to produce the final result. To explore the efficiency of VMQ, we used a set of uncompressed original videos to

generate a new set of encoded videos. These encoded videos are then used to generate a new set of distorted videos that have

the same video bit rate and frame size, but the frame rate is reduced.


   



    In modern machines, the gantry type vision measuring

machine superstructure has two legs and is often called a bridge. This moves freely along the granite table with one

leg (often referred to as the inside leg) following a guide rail attached to one side of the granite table. The opposite leg

(often outside leg) simply rests on the granite table following the vertical surface contour. Air bearings are the chosen

method for ensuring friction free travel. In these, compressed air is forced through a series of very small holes in a flat

bearing surface to provide a smooth but controlled air cushion on which the CMM can move in a near frictionless manner which

can be compensated for through software. The movement of the bridge or gantry along the granite table forms one axis of the

XY plane. The bridge of the gantry contains a carriage which traverses between the inside and outside legs and forms the

other X or Y horizontal axis. The third axis of movement (Z axis) is provided by the addition of a vertical quill or spindle

which moves up and down through the center of the carriage. The touch probe forms the sensing device on the end of the quill.

The movement of the X, Y and Z axes fully describes the measuring envelope. Optional rotary tables can be used to enhance the

approachability of the measuring probe to complicated workpieces. The rotary table as a fourth drive axis does not enhance

the measuring dimensions, which remain 3D, but it does provide a degree of flexibility. Some touch probes are themselves

powered rotary devices with the probe tip able to swivel vertically through more than 180 degrees and through a full 360

degree rotation.


   



    Height gauges can be used to determine an object or workpiece’s height with

extremely high accuracy and precision. These precision measuring instruments also provide marked locations on an item

relative to one reference plane for subsequent use.


    Center-line distances, internal/external diameters, and step heights are some of the different measuring tasks that can

be carried out by high-specification digital height gauges.


    They claim consistency of ±0.0001 inch and can be extremely precise up to 0.001 inches. Of course, the consistency and

precision of such instruments still depend on their overall quality, so it’s essential only to source one from websites of

reliable manufacturers.

Rheometers: How and What do they Measure?

    To measure the rheological properties of your sample with a rotational and oscillatory rheometer requires the

determination of the torque and deflection angle of the measuring bob. Your sample provides resistance or a reset torque to

the setting. The resulting deflection angle is then measured by the rheometer

encoder. The speed is calculated from the deflection angle and the time.


    However, as the user, you are usually more interested in the rheological parameters. How do you get these? Rheological

parameters are calculated from the measured values torque, deflection angle, and speed using conversion factors. All further

parameters, such as viscosity, are not measured but calculated.


    There is a new grading system for color concentrates and additive masterbatches. It is the European test of melt

dispersability known as FPV or Filter Pressure Value. It is reportedly more stringent than the ASTM dispersion test and a

more objective indicator of both dispersion quality in a concentrate and how well it will disperse in a polymer matrix. Above

all, it is a single number that shows how a concentrate compares with other products.


   



    What is an FPV?


    The basic principle is that you run compounded material through a screen mesh, which gradually blocks up with trapped

particles. The time it takes to block and the degree of pressure build-up are a good indication of how well dispersed the

masterbatch was. The filter pressure value tester

calls for feeding the lab extruder for a period of time only the

matrix polymer without masterbatch to get a baseline die-pressure reading. Then you introduce the masterbatch and record how

pressure builds as undispersed pigment or other additive is trapped on the screen pack. The test is a combination of time and

pressure peak. After a set time, you reintroduce virgin material into the extruder, and the pressure plot starts to drop to

show that you are ending the test.


   



    The basic steps of compounding can perfectly be realized with a corotating lab compounding extruder. This makes modular co-rotating twin screw extruders the ideal companion

for plastics from synthesis up to recycling. Profit from the harmonized, modular conception of screws and barrels for

optimally realizing all processing steps (feeding, conveying, plasticizing, dispersing, reacting, venting, pressure build-

up). The system configuration of each model can easily be adapted to the individual processing task - anytime and at a low

cost. Or combine several processing steps within a continuously working extruder and use your twin screw extruder as a modern

in-line compounder. Depending on the extruder size, on the material to be tested, and on the processing task, throughputs up

to 60 kg/h can be reached. This opens up the entire application range to these extruders - from material development up to

small-scale production of sheets and films.


   



    Detailed operating procedures of the lab cast film machine

:


    1. Prepare related tools, such as copper sheet, alcohol, mold release agent, etc.


    2. Check whether the die head, rollers, etc. of the casting machine and their surroundings are clean, then clean the die

head with alcohol, paraffin wax and gauze, or clean it with a copper sheet and spray it with a release agent.


    3. Check whether the rotation and pressure of each roller of the cast film machines are normal and whether the heat

exchange system, pump and pressure gauges can work normally.


    4. Wear each roller with a thick film through film, and then put the chilled roller in a closed state to press the film.


    5. Start the cast film machine, check whether the thick sheet and the melt have adhered firmly and smoothly, and then

pull the thick sheet tightly toward the person standing at the exit.


    6. Adjust the appropriate working position and carefully complete all operations.


    7. After the production is over, manually adjust the cast film machine to the non-working position, and then introduce

the material into the receiving tray, and stop the machine.


   



    With the rapid development of industrial science and technology, the lab blown film machine has also mastered the skilled manufacturing process, but compared with the advanced

technology level, there are still gaps in some aspects. If the film blowing machine is to achieve rapid development, then it

must absorb the advanced technology level, let the film blowing machine develop in a new direction.


   



    The calenders employ two or more steel rolls that close under pressure to smooth, compress, and in some cases partially

bond a nonwoven, plastic, paper, or another substrate. The rollers may be mirror-smooth, embossed with a pattern, or porous,

and are usually heated with hot oil or electric elements. The lab

calender machines can be utilized in an independent converting setting or an integrated production facility.

Are polarized sunglasses right for you?

    The glare-reducing perks of polarized lenses


    Polarized sunglasses are known for their ability to block the

glare that reflects off of certain surfaces. This makes them very popular among people who spend a lot of time outdoors, on

the road and around bodies of water.


    But polarized sports sunglasses are not just for people who

love boating, fishing or lounging on the beach. Anyone who is bothered by outdoor glare can benefit from this type of

sunglass lens.


    Polarized sunglasses can be helpful for driving too,

since they reduce the glare that reflects off of cars and light-colored pavement.


    Some light-sensitive people, including those who have recently had cataract surgery, can also benefit from polarized

lenses.


   



    What does polarized mean?


    When a lens is polarized, it has a built-in filter that blocks bright, reflected light. This intense light is known as

glare.


    When glare is reduced, your eyes feel more comfortable and you can see your surroundings more clearly.


    Sunlight scatters in all directions. But when it strikes flat surfaces, the reflected light tends to become polarized,

meaning the reflected rays travel in a more uniform (usually horizontal) direction.


    This creates an annoying, sometimes dangerous intensity of light that can reduce visibility.


   



    Polarized sunglasses


    Men polarized sunglasses offer

a few advantages when it comes to combating bright sunlight:


   
       
            Excellent glare reduction around bodies of water
       
   
   
       
            Better visibility while you're driving
       
   
   
       
            More vibrant colors and contrast among outdoor scenery
       
   


   



    People who spend a lot of time driving during the day should experience better comfort and visibility with polarized

glasses. That, in turn, can help them drive more safely and confidently.


    However, keep in mind that drivers, boaters and pilots may experience problems seeing certain digital displays on

instrument panels while they are wearing polarized sunglasses. This can be a problem if a split-second decision depends on

the information displayed on a screen.


   



    Different optical glasses frame materials greatly

expand your options for a new look. While shopping for new eyeglasses or sunglasses, ask your optician for advice about

variety in colors, durability, lightness, favorite brands, hypoallergenic materials, uniqueness and price.


    In fact, finding eyeglasses with the qualities that are most important to you could be as simple as choosing the right

glasses frame material, since each type has

its own unique strengths. If you're shopping online, be sure to use the retailer's material filter while browsing

eyeglasses to ensure you find what you are looking for.


   



   
        People have started to worry about the health effects of blue light emitting from screens. For this reason, more and

more people are wearing blue light glasses. These are glasses that contain lenses that partially block short-wave blue light.
   
   
        Blue light blocking glasses

are glasses that manufacturers claim can filter out blue light. The glasses have filtering materials or surface

coatings on the lenses that block a portion of blue light. People who think that their eye and vision symptoms are due to

blue light exposure may wear them to decrease their exposure to it.
   
   
       

   
   
        A majority of the children do not need to wear spectacles. But sometimes a child may need them. This article is about

children needing to wear glasses and has some ideas on how to make them wear their glasses without qualms.
   
   
        How a pair of glasses fits your child is important. Kids glasses

are not to be considered as small versions of adult glasses. The cheeks and noses of adults are of different

proportions than children. Spectacle frames need to take these differences into account if they are to fit properly. When

assisting your child in choosing eyewear, experienced children opticians keep these factors in mind.

What Are Evaporative Coolers? Here’s Everything You Need to Know

    Looking for a way to beat the heat? If you do not have a central air conditioning system in your home — or if you do but

are researching more environmentally friendly or affordable options — you might be wondering if evaporative

air coolers are right for you.


    The answer is … it depends.


    Understanding how evaporative coolers work is a crucial part of figuring out if one will work well in your home. If you

are new to evaporative cooling, there is a lot to learn. Here is everything you need to know about how evaporative coolers

work — and how to decide if you should invest in one.


   



    What Are Evaporative Coolers?


    An evaporative air cooler is a type of

air conditioner that works by harnessing the power of evaporation to cool air temperatures. When water evaporates, it turns

from liquid to gas. As it does so, the highest-energy particles leave the water first, and this leads to a drop in

temperature. This is why a moist cloth on your forehead feels good on a hot day — it is actually helping to lower your head

temperature as the water evaporates.


    The same scientific principles apply to the evaporative cooling process when it comes to your home air. In a dry

environment, the simple process of evaporation can help lower the temperature of the air. You may have felt this for yourself

if you have ever misted the air around you to feel cooler on a hot summer day. An evaporative air conditioner uses the same

idea, but it adds technology to make the process more efficient — and less messy — than just spraying a room with water and

hoping for the best.


   



    How do Evaporative Coolers Work?


    An evaporative cooling system takes basic evaporation and automates it to efficiently lower the temperature of the air in

your home. In general, the machine will consist of a fan, a thick pad, a water reservoir and some additional controls for

fine-tuning the results. The fan draws dry, hot air into the machine and across the cooler pads. These thick pads absorb

water from the reservoir and have many layers to increase the surface area. As the hot air crosses the pad, the water

molecules on the surface evaporate, which causes the air temperature inside the

electric air cooler to drop — often by as

much as 20 degrees. The fan then blows that cold air into your room, where you can enjoy the chill on a hot day.


    Evaporative coolers can have other useful parts built into them as well. Many utilize air filters and pads that are

designed to improve air quality by reducing allergens and minimizing mildew growth — an important consideration for anyone

with allergies or other respiratory concerns. A water pump, while not strictly necessary, can streamline the absorption into

the cooling pad. Some models offer the option of adding an ice pack to further cool the air the fan blows out into the room.

Varying fan speeds, oscillating functions and remote control are also useful features.


    A portable air cooler is a great way to

see if evaporative cooling will work in your home without making a big investment upfront. Portable coolers come with wheels

to easily move them from room to room for a little extra chilling exactly where you need it. You can also use these outside

as long as you can reach an outlet to plug them in. This makes portable evaporative coolers welcome accessories to a picnic,

pool party or any other outdoor gathering where people would appreciate a cool breeze. They still work best in dry places,

but you won’t have to worry about any special venting (as with portable air conditioners) or humidity build-up (as with

indoor evaporative cooler use). If you’re interested in experimenting to see what evaporative coolers are all about, a

portable version is a fine way to get started.


   



    A large industry ceiling fan pushes air

down to the living level by pulling from the air that it has above the blades to work with. The air is moved to the floor,

and then recirculated back up to above the blades after it spreads across the room and moves back up the walls. Thus, moving

back above the blades to repeat the process.


    If a fan does not have enough space between the blades and walls or any other solid obstruction, there will be a vacuum

affect created above the blades, and there will be no air for the fan to continue to circulate. With no air to circulate

there will be no breeze below the ceiling fan.


    Currently, a number of works and industries operate in a state of polluted air, which is not well ventilated. Therefore,

the necessary need is how to better deal with the environmental situation.

Industrial exhaust fans are the

solution to this requirement. This is an item with air circulation function to eliminate hot air, odors … This

industrial fan has a large capacity and wind flow. They are

suitable for areas with large acreage such as factories, warehouses, breeding facilities.


   



    Electric heaters, the device for heating rooms that converts

electric current to heat by means of resistors that emit radiant energy. Resistors may be composed of metal-alloy wire,

nonmetallic carbon compounds, or printed circuits. Heating elements may have exposed resistor coils mounted on insulators,

metallic resistors embedded in refractory insulation and encased in protective metal, or a printed circuit encased in glass.

Fins may be used to increase the area that dissipates the heat. Home electric heaters also are used for domestic central heating and for materials processing in the

industry.

Using SMS and Email to Engage Your Customers

    For companies around the world, email is the go-to channel for customer communications. Whether it is logins,

notifications, promotions, password resets, or policy updates, email is a tried-and-true platform with more global

accessibility than any other medium.


    However, email is only one part of the customer engagement experience.


    Regardless of who you are trying to contact or where they are, you can now complete the customer engagement package with

another robust API: SMS.


    Alone, SMS PVA is a powerful engagement tool that allows businesses to send

concise, timely messages to their customers. Combined with email, the two create a seamless customer communication experience

that is reliable, scalable, and downright powerful.


   



    What is an SMS?


    SMS stands for Short Message Service and is a more technical term for what we know as a text message. The SMS API bridges

the gap between the Internet and the carrier network in order to send and receive SMS messages.


   



    The Need for SMS


   
        When it comes to business communications, consumers have varying preferences. According to our 2020 Global Messaging

Engagement Report, people across generations and borders prefer email and SMS for their communications. That is why

India SMS PVA and email both deserve a place in your

communication toolset.
   


   



    Using multiple communication channels provides customers with a seamless experience. With multiple mediums to choose

from, customers can engage with your business on the channels they prefer.


    Like email, Mexico SMS PVA needs to be used at the right

time and for the right message. Below are some of the most common use cases for leveraging SMS in addition to email.


   



    The actual nuts and bolts of how the internet works are not something people often stop to consider. The problem with

that is the inherent danger of data security breaches and identity theft that come along with cute dog pictures, 24-hour news

updates, and great deals online.


    But what actually happens when you browse the web? You might be using a proxy server at your office, on a Virtual Private

Network (VPN) or you could be one of the more tech-savvy who always use a proxy

server of some kind or another.


   



    What is a Proxy Server?


    A proxy server is any machine that translates traffic between networks or protocols. It is an intermediary server

separating end-user clients from the destinations that they browse. Proxy servers provide varying levels of functionality,

security, and privacy depending on your use case, needs, or company policy.


    If you are using a proxy server, traffic flows through the proxy server on its way to the address you requested. The

request then comes back through that same proxy server (there are exceptions to this rule), and then the proxy server

forwards the data received from the website to you.


    If that is all it does, why bother with a proxy server? Why not just go straight from to the website and back?


    Modern proxy servers do much more than forwarding web requests, all in the name of data security and network performance.

Proxy servers act as a firewall and web filter, provide shared network connections, and cache data to speed up common

requests. A good proxy server keeps users and the internal network protected from the bad stuff that lives out in the wild

internet. Lastly, proxy servers can provide a high level of privacy.


   



    How Does a Proxy Server Operate?


    Every computer on the internet needs to have a unique Internet Protocol (IP) Address. Think of this IP address as your

computer street address. Just as the post office knows to deliver your mail to your street address, the internet knows how to

send the correct data to the correct computer by the IP address.


    An India proxy server is basically a computer on the internet

with its own IP address that your computer knows. When you send a web request, your request goes to the proxy server first.

The proxy server then makes your web request on your behalf, collects the response from the webserver, and forwards you the

web page data so you can see the page in your browser.


    When the proxy server forwards your web requests, it can make changes to the data you send and still get you the

information that you expect to see. A proxy server can change your IP address, so the web server does not know exactly where

you are in the world. It can encrypt your data, so your data is unreadable in transit. And lastly, a

Mexico cheap proxy provider can block access to

certain web pages, based on IP address.

Understanding Pipe Fittings

    Pipe fittings are components used to join pipe sections together with other fluid control products like valves and pumps

to create pipelines. The common connotation for the term fittings is associated with the ones used for metal and plastic

pipes which carry fluids. There are also other forms of pipe fittings that can be used to connect pipes for handrails and

other architectural elements, where providing a leak-proof connection is not a requirement. Pipe

link fittings may be welded or threaded, mechanically

joined, or chemically adhered, to name the most common mechanisms, depending on the material of the pipe.



    There is some inconsistency in terminology surrounding the terms pipe, tube, and tubing. Therefore, the term pipe

fittings will sometimes be mentioned in the context of tubing as well as pipe. While similar in shape to tube fittings, pipe

fittings are seldom joined by methods such as soldering. Some methods overlap, such as the use of compression

power fittings, but where these are commonplace for

connecting tubes or tubing, their use in pipe connections is rarer. It suffices to say that while there are general

distinctions, the common usage of terms can differ from supplier to supplier, although they represent the same items.


   



    Pipe Fittings Explained: Fitting Materials and Manufacturing Processes


    Cast and malleable iron


    Fittings for cast iron pipe fall under hubless and bell-and-spigot styles. Hubless designs rely on elastomeric couplers

that are secured to the outer diameters of the pipe or fitting by tension clamps, usually a stainless steel band clamp that compresses the elastomeric material and forms a seal.

These hubless or no hub designs are sometimes referred to as rubber pipe couplings or rubber plumbing couplings and are

especially popular for transitioning from one material to another—from copper to cast iron, for instance. Bell-and-spigot,

or sometimes, hub-and-spigot, overhead line fittings

are joined today primarily with elastomeric gaskets that fit inside the bell and accommodate the insertion of the

plain pipe end or fitting. Older systems before the 1950s were caulked using a combination of molten lead and a fibrous

material such as oakum. Cast iron pipe is sometimes joined with bolted flanges, or in some cases, mechanical compression

connections. Flanged joints employed in underground applications can subject the pipe to settlement stresses unless the pipe

is adequately supported.


   



    The anti-vibration hammer is designed to

reduce wind-induced wire vibration. High-voltage overhead lines have high pole positions and large spans. When the wire is

subjected to wind, it vibrates. When the wire vibrates, the working conditions at the wire suspension are the most

unfavorable. Due to multiple vibrations, the wire will be fatigue damage due to periodic bending. When the span of the

overhead line is greater than 120 meters, vibration-resistant hammers are generally used to prevent vibration. The

installation position of the anti-vibration hammer should be determined according to the construction requirements. After the

anti-vibration hammer is installed, it can produce the movement opposite to the vibration of the wire, thus eliminating or

weakening the vibration of the wire.


   



    Pole Line Hardware is Used in Multiple Industries


    Pole line hardware is used in industries such

as telecommunication, aviation, electrical, automotive, fabrication, marine, medical, mining and aerospace. This hardware is

made of various materials including steel, aluminum, platinum, silver, titanium and copper.


    Manufacturers of pole line hardware have been in existence since the 19th century. As such, the manufacture and design of

pole line hardware has improved over time. It is important to understand the different specifications and requirements of

your cables. Choosing fasteners that are suited to these exact tolerances is crucial to ensure stability.


    Since pole lines support and distribute utilities for long periods of time, the hardware used in the making of pole lines

must be subjected to tests that enhance strength and eliminate the possibility of weakness. These tests include wet and dry

AC withstands, thermal imaging, compression, radio interference voltage and partial voltage tests.


    With daily advancements in technology, distributors of pole line utilities have embraced safety and efficiency that goes

a long way in serving the general population. AMAC Equipment supplies tested and true high-quality hardware like crossover

clamps and drops hardware to suit multiple applications in the field.


   



    Bolts are one of the most common elements used in

construction and machine design. They hold every-thing together – from screws in electric toothbrushes and door hinges to

massive bolts that secure concrete pillars in buildings. Yet, have you ever stopped to wonder where they actually came from?


    What the majority of researchers on this topic do agree on, though, is that it was the Industrial Revolution that sped up

the development of the nuts and bolts and put them firmly on the

map as an important component in engineering and construction world.

Sit-Inside vs. Sit-On-Top Kayaks – 4 Reasons One is Better

    Both hardshell and inflatable kayaks can be categorized into two different styles:

            Sit-on-top kayak (SOT) and
       

            Sit-in kayak (SIT)
       


    The two designs differ drastically from one another, and each suits a different purpose.


    The differences between sit-on-top vs. sit-in kayaks


    The most apparent distinction between sit-inside and sit-on-top inflatable kayaks (& hardshell models) is that SIKs have an enclosed cockpit that positions the paddler inside the boat at or below the water level. In contrast, SOT kayakers sit on top of the kayak above the water’s surface.



    This fundamental divergence of design affects every aspect of their use and purpose.


    The sit-on-top model is the most popular design among beginners and recreational kayakers because it does not make the paddler feel like they are trapped inside of the kayak’s cockpit if they capsize.


    If they do tip over for some reason, they are far easier to reen


    The sit-inside model is more prevalent among intermediate and advanced paddlers because its design provides a significantly lower center of gravity, resulting in enhanced secondary stability during specific activities (which I’ll talk about later).


    The cockpit of a SIK kayak is surrounded by a rim for attaching a spray skirt to keep water out.

    They have similarities as well


    Even though there are some significant differences between the two styles, their main parts are similar:

     
            The top of the kayak is called the deck, where you’ll often have bungees or deck lines.
       
   
            The bottom is the hull.
       
   
            The front is the bow.
       
       
            The back is the stern.
       


    Both types of kayaks have:

     
            A seat (or seats in case of tandem kayaks).
       
       
            Foot support like simple footwells or adjustable foot pedals (which are more comfortable on a full day of paddling).
       
     
            Top of the line kayaks will additionally have a built-in backrest to make paddling for hours more comfortable.
       


    The pros and cons of sit-inside & sit-on-top kayaks


    Sit-Inside kayak pros

          The most significant advantage of a sit-inside kayak is that its center of gravity is lower than that of a sit-on-top kayak, which provides better secondary stability. This enables you to lean the boat on its side edge for more efficient turning and stay upright in rough seas. There is a trade-off, though, which I’ll get to in the cons section.
       
     
            Because sit-inside kayaks have a lower center of gravity, they can be made much narrower than a sit-on-top model. Being slimmer and longer means they are faster and easier to paddle than SOT kayaks, making them well suited for longer trips.
       
     
            The lower profile also means that sit-inside kayaks are affected by wind to a lesser extent.
       
   
     
            The enclosed cockpit provides protection from the sun or rough water.
       
     
            A spray skirt can easily be attached to the cockpit coaming for full protection from rain, snow, or frigid water during winter paddling. A well-sealed high-quality spray skirt can also be a safety feature because it will keep water out of the cockpit in case you flip (providing you can roll back and correct your white water kayak).
       
          Sitting inside a cockpit lets you place your legs against the side of the kayak & the underside of the deck. Your body effectively becomes one with the kayak’s body to enhance your control of the kayak, making it more maneuverable.
       
     
            You will find there’s room inside the kayak to store your equipment and keep them dry. Water can’t get in through self-draining scupper holes found on SOK kayaks. Some sit-in kayaks even have integrated watertight storage compartments.
       
 
       
            Due to the narrower beam of SIK kayaks, you can use a shorter paddle. This makes the boat easier to propel forward because the moment arm will be tighter. (The moment arm is the distance from your centerline to the part of the paddle entering the water. The shorter it is, the easier it is to paddle.)
       


    Sit-Inside Kayak Cons

     
            The single biggest con against sit-inside kayaks concerns floatation and ease of rescue, as the cockpit can take in a lot of water in case you capsize.
       
     
            Touring kayaks have 1 or 2 integrated bulkheads to circumvent this. But “what is a bulkhead”, you ask?
A kayak bulkhead is a built-in compartment, which traps air inside of the kayak. The bulkhead limits how much water can get into the boat and acts as a floatation chamber to keep it afloat if you swamp. Additionally, bulkheads have a hatch so that you can use them to dry-store supplies as well.
       
   
   
       
            Most recreational SIT kayaks will not have a bulkhead, but the better ones have a single one behind the seat.
       
   
   
       
            If you are alone, flipping a swamped kayak back is very difficult, and so is getting the water out of it. Paddling a kayak filled with water is close to impossible unless it has bulkheads that stayed dry. For this reason, beginners using a SIK kayaks should paddle close to shore, so they can swim out and empty their kayak if they capsize.
       
   
   
       
            If you plan on going out on open water, you need a touring kayak with bulkheads, and first, learn how to correct your capsized kayak and get back into it. Coastal paddling is a treat, but you have to prepare to stay safe.
       
   
   
       
            You can only carry items that fit through the cockpit and other hatches. Tieing larger items on deck degrades performance and your balance.
       
   
   
       
            Remember the increased secondary stability of SIK kayaks due to their lower center of gravity? Well, here is the flip side. The low sitting position causes them to have less primary stability.
       


    Sit-On-Top Kayak Pros


   
       
            They have a wider beam, giving them an advantage in initial stability. This makes them easier to use and more stable than sit-in kayaks.
       
   
   
       
            They are easy to get in and out of. You can safely jump into the water for a swim and climb back whenever you wish.
       
   
   
       
            If a SOT kayak flips over, it doesn’t swamp (fill up) since it doesn’t have a cockpit. You can quickly flip it back over and climb back on.
       
   
   
       
            Any water left on the deck will drain away through self-bailing drain holes.
       
   
   
       
            The design is convenient when launching, as well as for landing. You can lower yourself onto the kayak’s seat and swing your legs on if you launch from knee-deep water. This makes SOK kayaks the choice for people with mobility issues.
       
   
   
       
            There is no cockpit to fit into, which means they are better for larger people.
       
   
   
       
            A SOT has more generous storage space; you can bungee anything on the deck, which is essential on multi-day camping trips.
       
   
            And because everything is on the deck, access to your gear is more comfortable. You won’t have to struggle and reach deep into your cockpit to get your things. This is especially important for fishermen, who need space to store their gear and freedom of movement to use their equipment. All fishing kayaks are of the sit-on-top variety.
       
   
   
       
            Sit-on-top kayaks are cheaper than their sit-inside counterparts.
       

    Stand-up paddleboarding is becoming more popular each year. Hawaiians have been using it for years as a means to keep fit when the waves are not adequate for surfing. By using a paddleboard surfers were able to enjoy the water and obtain some exercise simultaneously. In the last several years millions of people have begun to enjoy paddle boarding while standing (SUP). People now engage in stand-up paddling to enjoy the water, spend time with friends, and improve their fitness level.


    SUP board can provide you with a very good overall workout. You will make use of balance and strength in order to remain upright and propel yourself in the water. The level of intensity you will experience will be variable and be dependent on your venue. If you are paddling in the ocean and there are a lot of waves and an ocean current, your workout will be intense. If you are simply drifting in relatively placid waters, it will not be so hard-core.