Redirect high traffic site to new .com url

We’re revamping our very high traffic .com.au site (average 80k page views a day) with functionality that we want to offer internationally. We’ve purchased a .co and .net url and just weighing up if it’s worth using one of them or not. We already get international traffic to the .com.au site.

Wondering what the potential risks if we redirect, and advantages/disadvantages if we stay and try to run off .com.au internationally.

Any advice in general much appreciated.

Aluminum Foil Rolling Mill — Produce high-quality foils with high efficiency and low

Aluminum Foil Rolling Mill — Produce high-quality foils with high efficiency and low cost
As the requirements for aluminum foil output and quality continue to increase, the requirements for aluminum foil production equipment, such as aluminum strip and foils mill tools, are becoming more and more stringent. Today, rolling mills are required to produce foil products with a thickness of less than 6 microns and a width of more than 2 meters, and the speed should reach more than 2,000 meters per minute. In order to meet these requirements, the aluminum foil rolling mill is equipped with the most advanced high-speed rolling technology, and provides comprehensive process support, so that the rolling mill can be put into production at a record speed, and after changing the rolling mill settings, it can be produced from the first coil. The technical indicators of the qualified products for sale are better than the industry standards.
It’s a well-established question and one that we’ve been too afraid to ask our mothers: Should we use the shiny or the dull side of aluminum foil when we cook? And have we been doing it wrong this entire time?!
Concerned cooks, you can breathe a sigh of relief: As it turns out, there’s no “correct” side of aluminum foil to use when cooking so using it on either side is not one of the cooking mistakes that could ruin your food. According to the Huffington Post, they’re both equally effective at heating your food—so just choose whatever side you prefer.
If there’s no trick to it, then why, exactly, does aluminum foil have a shiny and a dull side in the first place? Experts at Reynold’s Kitchen say that the difference between the two sides is due to a manufacturing process called milling, during which heat and tension is applied to stretch and shape the foil. Two layers of foil are pressed together and milled at the same time, because otherwise, it would break.
“Where the foil is in contact with another layer, that’s the ‘dull’ side,” Reynold’s explains. “The ‘shiny’ side is the side milled without being in contact with another sheet of metal. The performance of the foil is the same, whichever side you use.”
But pay attention if you are using non-stick foil; in that case, there is a difference between the two sides. Since the non-stick coating is only applied to one side, you’ll want to use the dull side. Side note: There will be a label that designates the “non-stick side” in case you forget.
However, aluminum foil could pose a serious risk to your health—so maybe you should stop cooking with it altogether.
Aluminum foil might be one of our favorite inventions ever. Whether we’re grilling up some fresh veggies in a neatly-wrapped parcel or folding a leftover slice of pizza to save for later, it’s the perfect solution to pretty much any kitchen situation. Seriously, our list of uses for this shiny staple is endless.
We noticed that the handy tool comes with two distinct sides: a shiny, reflective side and a dull, matte side. That got us thinking. Is there a purpose behind the two different textures? Should we be using different sides for certain reasons? Have we been doing everything wrong for years?!
“Regardless of the side, both sides do the same job cooking, freezing and storing food,” Mike Mazza, marketing director for Reynolds Wrap, told TODAY Home via email. “It makes no difference which side of the foil you use unless you’re using Reynolds Wrap Non-Stick Aluminum Foil.”
Non-Stick foil actually has a protective coating on one side, so the company recommends only placing food on the side marked “non-stick” for maximum efficiency.
Aluminum foil, or tin foil, is a paper-thin, shiny sheet of aluminum metal. It’s made by rolling large slabs of aluminum until they are less than 0.2 mm thick.
It’s used industrially for a variety of purposes, including packing, insulation and transportation. It’s also widely available in grocery stores for household use.
At home, people use aluminum foil for food storage, to cover baking surfaces and to wrap foods, such as meats, to prevent them from losing moisture while cooking.
People may also use aluminum foil to wrap and protect more delicate foods, like vegetables, when grilling them.
Lastly, it can be used to line grill trays to keep things tidy and for scrubbing pans or grill grates to remove stubborn stains and residue.
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Aluminum is one of the most abundant metals on earth.
In its natural state, it is bound to other elements like phosphate and sulfate in soil, rocks and clay.
However, it’s also found in small amounts in the air, water and in your food.
In fact, it’s naturally occurring in most foods, including fruits, vegetables, meats, fish, grains and dairy products.
Some foods, such as tea leaves, mushrooms, spinach and radishes, are also more likely to absorb and accumulate aluminum than other foods.
Additionally, some of the aluminum you eat comes from processed food additives, such as preservatives, coloring agents, anti-caking agents and thickeners.
Note that commercially produced foods containing food additives may contain more aluminum than home-cooked foods.
The actual amount of aluminum present in the food you eat depends largely on the following factors:

  • Absorption: How readily a food absorbs and holds on to aluminum
  • Soil: The aluminum content of the soil the food was grown in
  • Packaging: If the food has been packaged and stored in aluminum packaging
  • Additives: Whether the food has had certain additives added during processing

Aluminum is also ingested through medications that have a high aluminum content, like antacids.
Regardless, the aluminum content of food and medication isn’t considered to be a problem, as only a tiny amount of the aluminum you ingest is actually absorbed.
The rest is passed in your feces. Furthermore, in healthy people, absorbed aluminum is later excreted in your urine.
Generally, the small amount of aluminum you ingest daily is considered safe
[url=http://www.metalgoldshell.com/seamless-steel-pipe-production-line/]Seamless steel pipe production line is mainly single-chain type cooling bed cooling bed, a double-stranded cooling bed, the new chain cooling bed, stepping rack cooling bed, screw-type cooling bed.
1, single-chain cooling bed
More use of single-chain cooling bed climbing structure. Cooling bed and fixed by the forward rail transport chain composed of a set of transmission. Placed between two steel dial grip forward transport chain, fixed steel rails bear the weight of the body. Single chain cooling bed transport chain finger means of the forward thrust friction of the steel pipe and the fixed rail to generate rotary motion, while relying on the weight of steel and the angle of lift, the steel pipe is always abutted against the forward transport chain finger, achieve a smooth pipe rotation.

2, double-stranded cooling bed
Duplexes cooling bed transport chain from the forward and reverse transport chains, positive and negative chain of transmission of each set. Placed between two steel dial grip forward transport chain, the reverse chain bear weight steel body. Duplexes cooling bed transport chain use the forward thrust of the steel pipe pulling claw run forward, using the inverse chain steel pipe friction generated continuous rotary motion. Reverse chain movement also makes steel always leaning forward transport chain, finger, smooth rotation and uniform cooling.

3, the new chain cooling bed
A combination of single-stranded and double-stranded cooling bed features cooling bed, cooling bed into the uphill sections and downhill sections. The uphill sections of the transport chain by the forward and reverse transport chain consisting of a double-stranded structure, positive and negative together to make steel continues to rotate forward, doing sport climbing. Downhill section of the forward transport chain and single-stranded structures arranged in parallel steel rails, relying on weight to achieve rotation, do landslide movement.

4, stepping rack cooling bed
Stepping rack cooling bed bed composed by two racks, assembled in a fixed beam, called static rack, another assembly in moving the beam, called the move a rack. L The agency action, moving the pipe rack will hold up the rise, due to an inclined angle, steel rolling when it is lifted once along the tooth. Move up to the highest gear position, stepping body movements so that the moving direction of the rack to the cooling bed one step away from the output. Lifting mechanism continues to operate, drive and move the rack dropped into a given rack alveolar steel, steel toothed rack along a fixed rolling once again, after moving back to the initial position of the rack, complete a cycle.

5. Screw the cooling bed
Main drive screw is cooled by means of the screw and fix the cooling of the gantry and other components, the screw including a screw rod and screw helix. Face fixed cooling gantry above the spiral rod above and below the spiral, steel body weight is borne by the fixed cooling stand. Main drive screw driven synchronous rotation, spiral screw driven steel roll forward on the fixed bench cooling, cooling. Single chain does not fit the cooling bed continuous operation, better cooling bed duplexes, the new cooling bed chain effect and low cost, stepping rack cooling bed is generally used in large or high profile production line[img]/Content/upload/2021797717/202108251334033471709.gif[/img], screw-type cooling bed are generally smaller diameter seamless steel pipe for cooling.

Heat treatment services for stainless steel and metal alloys
Solution annealing (also referred to as solution treating) is a common heat-treatment process for many different families of metals. Stainless steels, aluminum alloys, nickel-based superalloys, titanium alloys, and some copper-based alloys all may require solution annealing.
The purpose of solution annealing is to dissolve any precipitates present in the material, and transform the material at the solution annealing temperature into a single phase structure. At the end of the solution annealing process, the material is rapidly quenched down to room temperature to avoid any precipitation from occurring during cooling through lower temperature ranges. The single phase solution annealed material will be in a soft state after treatment.
The solution annealing treatment is required prior age hardening / precipitation hardening. The single phase microstructure created during solution annealing is required prior to age hardening, such that only the precipitates formed during age hardening will be present in the final product. The composition, size, and quantities of those precipitates formed during aging will determine the final product’s hardness, strength, and mechanical properties after aging. It is critical that the structure be properly solution treated prior to aging in order to meet all of these requirements.
High-quality solution heat treatment
We recognize how important it is to our clients that the finished product we create demonstrates exceptional quality, and purity. To achieve this goal, we have invested heavily in our machinery, as well as implemented rigorous quality-control standards that ensure your work is completed to the very highest standard at every stage of solution heat treating. Our experienced team is able to successfully undertake heat treatment solution on a wide-variety of projects.
Definition of Cast Roll and Forged Roll
We will introduce cast roll and forged roll.
Forged rolls offer outstanding internal and surface soundness and meet customers’ requirements for strength, hardness, and reliability. Manufacturer produces forged rolls on advanced liquid forging hydraulic presses and heat treat by means of double and progressive induction to guarantee that our products have excellent levels of chemical pureness, solid metallurgic structure, and high resistance. The Reinosa steel plant’s latest developments in forged back-up rolls produces a superior product compared to cast back-up rolls. The structural homogeneity of forged rolls enables optimal performance in the mill.
The twin-roll plate casti roll is not completely equivalent to the roll on the twin-roll plate and strip casting machine. It is a deformation tool and also functions as a water-cooled crystallizer in the process of casting the roll. When working, the outer surface of the roll sleeve of the casting roll is in contact with the hot molten metal, and the inside of the roll sleeve is washed by powerful cooling water to quickly take away a large amount of heat, and there is a strong heat exchange between them. Casting rolls not only bear the rolling pressure of deformed metal, but also bear huge heat exchange stress. Therefore, special requirements are put forward for the cast roll sleeve material and the cast roll structure. The selected roll sleeve material can withstand the alternating heat. Load, have sufficient heat transfer capacity, do not chemically react with molten metal, and have sufficient strength and rigidity to ensure the smooth progress of the casting and rolling process.

Roll forming of a high strength aluminum tube

Roll forming of a high strength aluminum tube
The presented paper provides a modelling strategy for roll forming of a high strength aluminum alloy tube. Roll forming allows the cost-effective production of large quantities of long profiles. Forming of high strength aluminum brings challenges like high springback and poor formability due to the low Young’s modulus, low ductility and high yield strength. Forming processes with high strength aluminum, such as the AA7075 alloy, therefore require a detailed process design. Three different forming strategies, one double radius strategy and two W-forming strategies are discussed in the paper. The paper addresses the question whether common roll forming strategies are appropriate for the challenge of roll forming of a high strength aluminum micro channel tube. For this purpose, different forming strategies are investigated numerically regarding buckling, longitudinal strain distribution and final geometry. While geometry is quite the same for all strategies, buckling and strain distribution differ with every strategy. The result of the numerical investigation is an open tube that can be welded into a closed tube in a subsequent step. Finally, roll forming experiments are conducted and compared with the numerical results.Current research in production technology focuses primarily on increasing resource efficiency and thus follows the approach of fundamental sustainability of processes and products. High strength aluminum alloys (e.g. AA7075) are commonly used in aerospace applications in spite of their high cost of about 5 €/kg and poor formability [1]. Due to ambitious legal requirements, such as the CO2 target in automotive engineering, new lightweight construction concepts are still needed [2]. An excellent basis is offered by the production of high strength AA7075 thin walled tubes as semi-finished products by roll forming. These can be further processed in subsequent customized processes such as welding, stamping, cutting or rotary swaging.

According to DIN 8586, roll forming is a bending technology with rotating tool motion to produce open and closed profiles [3]. Several pairs of forming rolls are aligned one behind the other for the forming process. The friction between the rotating forming rolls and the sheet metal causes a forward movement of the sheet. Simultaneously the sheet is formed in and between the stations. For the production of large quantities, roll forming is a cost-effective manufacturing process, compared to tube extrusion or tube drawing. Roll forming can also be competitive for smaller quantities, if the number of forming passes is small enough [4]. The incremental nature of the roll forming process also allows forming of high strength materials, such as ultra high strength steel (UHSS) [5].

During roll forming there is a limit for the amount of deformation regarding buckling limit strain (BLS), which can be reached in one forming station [6]. Abeyrathna [5], Park [7] and Bui [8] showed that longitudinal strain has a major impact on product defects, such as bow or buckling. The maximum longitudinal strain occurs in the area of the band edge. Plastic elongation in the roll gap between the forming rolls followed by compression when the sheet leaves the forming rolls leads to buckling. Figure 1 illustrates the elongation, followed by compression when forming a tube. To prevent buckling, the maximum longitudinal strain must be low. Once buckling takes place, welding of the formed tube becomes very difficult or even impossible [9]. Parameters with a large influence on buckling are the stiffness of the sheet and the yield strength of the material. According to Halmos [10], elongation of the band edge depends on the flange height and inter-station distance ld. High bending angles of a single forming station Θp and a small inter-station distance ld lead to large elongation of the band edge and thus to buckling. For circular sections (e.g. tube), the BLS is 5–10 times higher than the BLS for a U-profile [6].Groche et al. [11], Park et al. [7], Zou et al. [12] and Lee et al. [13] showed that roll forming of high strength materials and especially of high strength aluminum drawn tubebrings challenges compared to commonly roll formed steel grades. High strength leads to high springback and thus to less dimensional accuracy in the processed part. Parameters, which have an influence on springback are shown in Table 1. Difficulties regarding aluminum include early fracture due to low ductility, higher springback and redundant deformation. This requires a well-designed forming strategy in order to get the lowest possible springback and buckling in the roll forming process and the best quality of the processed part. In contrast, aluminum shows a good-natured behavior with regard to buckling due to a higher value of BLS compared to steel [14].The single radius-forming strategy has the advantage to form tubes with different sheet thickness on the same tool. A flower pattern with constant bending radius over the entire cross-section of the sheet is characteristic for the single radius-forming. For high-strength materials, the single radius-forming strategy is not applicable due to high springback caused by the high elastic bending content [10, 18].

The double radius- and W-forming strategies are appropriate for high strength steels. For both strategies, two radii are combined in each pass, whereby the radius in the edge area is equal to the end radius already in the first pass of the process [18]. In contrast to double radius forming, a negative bending is initially introduced in the middle section in the W-forming process. The main advantage of this strategy is that the final radius can be formed into the band edge area at the first pass of the process [18]. Another approach is described by Jiang et al. [19] with a cage roll forming mill for the production of electric resistance welded pipes.

The height displacement of the profile is called “up-hill” or “down-hill”. During the down-hill strategy, the profile is lowered step by step in each pass. The use of a down-hill forming strategy can reduce plastic elongation in the band edge and thus the number of forming stations [10]. Based on the fundamental differences in roll forming between aluminum and steel, this publication addresses the question if one of the strategies suits for forming a tube of the high-strength aluminum alloy AA7075.

FE-Simulation of the roll forming process
The roll forming tools are designed by numerical simulation of the process. The target geometry is a tube with an outer diameter of d=54.98mm (ro=27,49mm/ri=25,99mm) and a wall thickness of s0=1.5mm. An AA7075-T6 aluminum alloy is used for the roll forming process. Table 2 shows the mechanical properties of the alloy.The first forming strategy suggested automatically by UBECO Profil after defining the target geometry is a double radius-forming strategy and has 27 passes in total. Based on tube forming sequences in literature [15, 16], the number of passes is reduced to 14 passes by skipping every second pass, in order to increase process efficiency. After the reduction to 14 passes, the edge strain is still below the critical limit in every stage of the process according to the PSA. The approach for the first forming strategy is to form the tube in uniform increments and to keep the longitudinal strain low in the band edge. The further approach is to calculate the stresses of the formed tube to arrive at the number of passes required. Forming strategy 2R is the first strategy numerically investigated by the FE-software Marc Mentat.In this paper, roll forming of a high strength extruded aluminum tube is investigated. Due to the difficult determination of the design parameters, roll forming of high strength aluminum is a challenge. Conventional roll forming strategies quickly reach their limits when forming aluminum or high strength steels. To form a tube out of high-strength aluminum alloys such as AA7075, a W-forming strategy is recommended. Another positive influence is the application of a down-hill strategy. The investigations have shown that an efficient roll forming production line for high strength aluminum tubes can be set up even with a small number of forming passes. The W-forming strategies showed a good behavior with regard to buckling, compared to the double radius forming strategy. Forming strategy W2 combines the advantages of few passes with a good final part geometry thanks to detailed process design. The numerical investigation and the following experiments demonstrated the feasibility of roll forming a high-strength aluminum tube. It is shown that conventional design methods are also valid for high-strength materials.A further result of the numerical investigation is that the design of the tools should not be based on longitudinal strain in the band edge alone. For a first estimation, the elongation of the band edge is a valid factor, but for an exact process design a numerical simulation should always be performed. In addition, BLS is material dependent, which makes an analytical calculation even more difficult.

Regarding the springback angle, the experimental investigations show little deviations from the FE-model. The reasons for this are the simplified material model, which does not consider combined hardening effects, the influence of the smaller modulus of elasticity after plastic deformation and compliance of the forming stand. Nevertheless, the simplified FE-model provides sufficiently accurate results regarding buckling and geometry of the tube.
Axial crash of thin-walled circular seamless aluminum tube is investigated in this study. These kinds of tubes usually are used in automobile and train structures to absorb the impact energy. An explicit finite element method (FEM) is used to model and analyse the behaviour. Formulation of the energy absorption and the mean crash force in the range of variables is presented using design of experiments (DOE) and response surface method (RSM). Comparison with experimental tests has been accomplished in some results for validation. Also, comparison with the analytical aspect of this problem has been done. Mean crash force has been considered as a constraint as its value is directly related to the crash severity and occupant injury. The results show that the triggering causes a decrease in the maximum force level during crash.

Three Benefits of LED High Bay Lighting

In the world of lighting, the high bay is a fixture that you would find in a warehouse, a factory, a gymnasium, or any large open area with relatively high ceilings. Many existing high bay lighting and low bay lighting applications utilize high intensity discharge (HID) lamps such as metal halide or high pressure sodium lamps.
Despite their widespread use, HID lamps utilize antiquated technology that costs building managers both directly and indirectly. Specifically, using HID lamps will result in: higher than necessary energy costs, frequent maintenance costs, and poor lighting performance. These issues can all be addressed by converting your existing lighting to LED.
Energy Savings
Energy savings is a primary driver behind why you should evaluate LED lighting for your building or facility. Common wattages for LED high bay lights can range from 95 watts to 495 watts. If we compare this wattage to a typical HID high bay fixture that same range is 175 watts to 1000 watts.
Consequently, by switching to LED lighting you are immediately reducing your energy consumption by 40%-60%. To put this in dollars, you would be saving $300 per fixture per year in electricity costs if you made the switch to LED lighting. Depending on the size of your facility this can really affect the operational balance sheet.
Maintenance Cost Reduction
By converting to LEDs you will also see a dramatic reduction in the maintenance of your T-Line linear highbay light fixtures. This is due to the way LEDs generate light, and the way they progress through their functional life. Instead of ceasing to function properly once a fuel source is significantly reduced, LED generated light output degrades very slowly over time. As a result, the functional life of an LED product can be significantly longer than that of a HID Lamp, therefore drastically reducing the maintenance load required.
For example, by converting conventional 400w HID T-Line modular linear highbay lighting to LED, a typical building with industrial light fixtures can save up to $5,341 over the course of three years in maintenance costs alone.
Lighting Performance
Finally, lighting performance is a critical factor in evaluating the move to a different type of lighting. From a performance standpoint,  matepro ufo highbay lights are a head-and-shoulders above their HID counterparts.
LEDs utilize a multi-point design, meaning they distribute light on the intended surface evenly. Therefore, light levels across a given surface will vary less between fixture mounting locations. In addition to the even distribution of light, LEDs are available in a range of CCTs (correlated color temperatures) and as a result provide a range of options to increase the visual perception of “brightness.”
In contrast, HID fixtures produce a “bright spot” directly underneath the fixture with light levels decreasing drastically as the distance between fixtures increases.
Conclusion
In conclusion, we can see that there are three primary drivers to consider installing an LED retrofit in your facility. By converting you will see immediate energy savings, decreased frequency of lighting maintenance, and an uptick in overall lighting performance. 

LED Tri-proof light is a special light made of special protective materials, waterproof, dust-proof and anti-corrosion . Tri proof means “Waterproof” “Dust-proof” “Anti-corrosion”.
Special anti-oxidation and anti-corrosion material and Silica Gel sealing ring are used to realize the protection requirements of lights. According to the actual working environment of the Tri-proof light, the surface of the lamp protection box is treated with nano-spraying plastic damp-proof and anticorrosive treatment, which prevents the entry of dust and moisture.

Because fluorescent fixtures are often mounted into ceilings and connected directly to mains electricity, they are relatively expensive and difficult to replace completely. As a result, it oftentimes makes the most economical sense to simply use the same fluorescent fixture, but replace the fluorescent tube with an LED tubar light. Therefore, it is important to understand the types of fluorescent tubes that were developed, so that the correct LED tube light can be retrofitted in place.

If you want LED panel lights for home or office, there will be different shapes and sizes available for you. Most commonly, you will have to choose between a square or round LED panel light. Although some people can make a decision easily, others will probably be pickier.
In general, you should choose a shape that looks beautiful in the context of use. However, when looking at the squares and circles of LED panel lights, you will encounter some technical differences. These differences may affect the functionality of the panel under certain settings.

Everything You Need To Know About High Bay Lighting

What is high bay lighting?
High bay lighting is the go-to solution in many workplaces for achieving bright and uniform illumination across large, high-ceilinged indoor spaces. It’s most often found in warehouses, department stores, manufacturing areas and sports halls.
But what is LED high bay light exactly, and how does it differ from other high-intensity lighting solutions?
Rather than any single fixture style, the term ‘high bay lighting’ refers to the positioning of the luminaires, and as such it covers a broad and flexible range of lamp types and fittings. As a rule of thumb, MatePro UFO highbay light is usually the best option for any indoor setting where the floor-to-ceiling height measures 8m (roughly 25’) or taller.
For less lofty spaces, low bays (or even a series of appropriately arranged floodlights) may be enough to get the job done. But, where indoor work areas span a great deal of vertical and horizontal space, the lighting solution needs to be both powerful and flexible.
In this guide, we’ll tell you everything you need to know about the various types of high bay lighting configurations available, and the sorts of environments they’re best suited to.

What’s the difference between high bay and low bay lighting?
Low bay lighting setups, as the name suggests, are more commonly used where there’s less vertical distance for the light to cover. In these situations, lower mounting positions will often allow for a shallower lighting angle, making it easier to illuminate vertical surfaces or to create specific lighting effects in smaller zones.
High bays are most often found in warehouses, gantries, above a large shop or conference floors, at sports facilities, in expansive factory or workshop environments…anywhere that needs uniform, brilliant illumination to maximise visibility and light quality over a wide area.
Apart from the different mounting altitudes, another key contrast between high bay and low bay light setups is that high bays tend to rely on more careful consideration of layout, fittings and components.
T-line linear highbay light must be chosen and positioned to ensure the light they cast is strong, uniform, and equally effective at hitting both vertical and horizontal surfaces from a wider angle.
To achieve this, high bay lighting tends to demand the more exacting placement of lamps and reflectors. When configured properly, high bay setups can achieve superb quality and intensity of light across the entirety of a wide, tall space.

LED stands for light-emitting diode which is a light conductor that emits white light when a current flows through it. LED panels are commonly used in video and photography as a directional light source. LED’s are known for their powerful white light, low energy consumption, and durability.
LED panel lights have become a popular option for creators in all different industries. Due to their practical and versatile design, there has been a surge in market demand for light panels. However, not all lights are created equal.

The LED Bulkheads’ cool white light is an attractive alternative to the harsh orange output of SOX lamps. With efficiency comparable to that of fluorescent lighting, the LED Bulkhead is smaller than other lamps of the same output. Its instant start, with no warming-up period is a significant advantage for event triggered security lighting. The LED Bulkhead, rated at up to 60W, is the most powerful of a range that starts from 20W. With supply inputs ranging from 23.5W to 70.6W, this range has an electrical efficiency of 90%. The LEDs typically yield 100 lumens per watt and the light has a colour temperature of 5000 to 7500 K.

LED Tri-proof Lights are durable and eco-friendly alternative lighting systems to traditional fluorescent LED tube lights. LED Tri-proof Lights are designed to withstand severe environments and will help you reduce your energy consumption by up to 80%.
LED Tri-proof Lights are specifically built to withstand conditions susceptible to water, dust and corrosion impacts. Our Lighting tri-proof Lights are Incredibly durable and long lasting, they are highly resistant to heavy impacts.

Fiberglass Reinforced Plastic: High Performance in Ceiling and Wall Panels

When it comes to selecting the right building material for the project at hand, architects have many options. Natural materials like wood, metal and stone may be right when beauty and durability are key. But manmade materials also have their place, particularly when cost and ability to stand up to demanding environments are critical design considerations. Technology has enabled the production of fiber-reinforced plastics (FRP) to provide the characteristics needed to simulate – and often surpass – many of the performance characteristics of traditional materials. Just as durable, frequently stronger and typically more cost effective, lighter, easier to clean and install, FRP machine has solutions for industrial and commercial challenges, particularly those with corrosive environments. This article will serve as a primer on FRP ceiling and wall panels, discussing their properties, how they are made, and their appropriate applications.

FRP
While many plastics are pure plastics, there are also plastic composites. Plastics can be reinforced when additional strength is needed, usually with reinforcing fibers. The combination of plastic and reinforcement produces some of the strongest materials for their weight ever made. An FRP composite is actually a combination of a polymer matrix and a reinforcing agent such as glass, carbon, or aramid (a class of heat-resistant and strong synthetic fibers), so that there is a length to thickness ratio that provides a reinforcing function.
The resin protects the fibers, maintains their alignment, and distributes the loads evenly among them. The FRP sheets panels may also contain fillers, additives and core materials. None of the elements in a composite dissolve or merge completely into each other, but act together to offer benefits ideal for structural applications. The FRP significantly increases the members’ load carrying capacity. According to the American Composites Manufacturing Association, FRP composites deliver more strength per unit of weight than most metals and are 1/5th the weight of steel.
Many FRP wall and ceiling panels are made of thermoset plastic, that is, a material that undergoes a
chemical reaction in which it is formed into a solid and cannot be reformed. By reinforcing the plastic matrix, a wide variety of physical strengths and properties can be designed into the FRP composite. Additionally, the type and configuration of the reinforcement can be selected, along with the type of plastic and additives within the matrix. FRP composites can be developed specifically for the performance required versus traditional materials such as wood, metal, ceramics, and the like. A key advantage of FRP is that engineers can design the FRP composite to provide the needed characteristics, and avoid cost penalties of an over-engineered product.

A thermoset FRP wall panel provides a long-term, durable, sanitary finish that meets the rugged performance needed in food processing, health care and storage environments. The primary advantage of the FRP decorative plastic panels is their long-term resolution of these performance needs.
On the other hand, non-reinforced thermoplastic panels such as those made of PVC, PE or PP, or combinations thereof, may be lower in cost but have inferior performance characteristics. Because of their lack of reinforcement, they are particularly difficult to install properly. Both PE- and PP-based panels may be more difficult to use with water-based latex adhesives because of high-surface tension properties. That is, during installation, latex adhesives can tend to “bead” and resist spreading, possibly causing delamination early after installation. The high surface tension, combined with thermal expansion up to three times higher than that of FRP panels, can cause bubbles and bulges in wall panels within weeks of installation. Further, only a small temperature change will result in a relatively large expansion of the non reinforced thermoplastic panels-a property that will cause failure and need for replacement in refrigerated and cooking areas.
The soft surface of the thermoplastics makes them poor performers in cleanability and abrasion. Surface hardness tests show that FRP colored plastic roofing sheets are over three times harder than non-reinforced thermoplastics which tend to stain easily and become difficult to clean. This applies to graffiti, food stains and yellowing and color change. In terms of durability, the thermoplastic panels display only 24 percent of the stiffness provided in FRP panels. While often touted as environmentally friendly, non-reinforced thermoplastics contain a small percentage of recycled plastic. The higher the recycled plastic component, the lower the performance characteristics, and use of recycled content contributes to premature aging and yellowing.
In selecting thermoset FRP panels, which have no recycled plastic at this point, architects should note that they do vary in strength based on the amount of fiberglass reinforcement. Less expensive panels tend to have less reinforcement. The panels are generally utilitarian, rather than aesthetic, and have a tendency to yellow with age, though this can be somewhat offset by use of a special sealant. An installation crew experienced with FRP clear roofing sheets is advisable.

High CPU usage in AWS RDS

When I visit woocommerce orders page in wordpress, mysql RDS CPU usage goes to 100% but the website is working perfectly fine. In ‘active sessions’ section, "wait/io/tables/sql/handler" is showing cpu usage to 99%. I looked at the performance insights of the database and saw this strange query:

SELECT SQL_CALC_FOUND_ROWS `hbm_posts` . * , `low_stock_amount_meta` . `meta_value` AS `low_stock_amount` ,  MAX ( `product_lookup` . `date_created` ) AS `last_order_date` FROM `hbm_posts`  LEFT JOIN `hbm_wc_product_meta_lookup` `wc_product_meta_lookup` ON `hbm_posts` . `ID` =  `wc_product_meta_lookup` . `product_id` LEFT JOIN `hbm_postmeta` AS `low_stock_amount_meta`  ON `hbm_posts` . `ID` = `low_stock_amount_meta` . `post_id` AND `low_stock_amount_meta` .  `meta_key` = ? LEFT JOIN `hbm_wc_order_pro 

This query is not even complete and I can’t execute it in mysql shell. I have tried tracing back the query in wordpress, but can’t find it anywhere. I searched it with ‘string locator’, saw query logs in ‘query monitor’, tried disabling all plugins and also tried "define(‘SAVEQUERIES’, true);" as stated in this post:

https://stackoverflow.com/questions/4660692/is-it-possible-to-print-a-log-of-all-database-queries-for-a-page-request-in-word

What can I do to trace back this? Mysql version of server and client is 5.7.34

Database being hit with thousands of (Google?) search queries causing high load

I have a bit of a strange issue. Running this WordPress site several years now, but never encountered anything like this. LEMP server (ubuntu, nginx 1.18, mysql 8) Two weeks ago (according to Google Search Console excluded noindex pages and me manually checking mysql processes), more and more hits to the database started to occur (now already 4M+). All very similar (search queries?):

SELECT COUNT(*) FROM xx_posts WHERE 1=1 AND (((xx_posts.post_title LIKE '%google=662496898\_session/feed/rss2/<a_href/page/3//page/1/&usg=AOvVaw1w32-jX45qQEhTH-iBghzF

The part after rss2 tends to change. No idea where this is coming from, but it seems to be increasing and causing the server load to increase as well.

Has anyone seen this before? Or hints to find where this is coming from? No new plugins or themes were installed in the past few months. Everything is up to date.

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Custom Payment Gateway Solution for High Risk Businesses

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At the moment, we process for a couple IPTV Merchants.

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We are able to process/accept: VISA, Master Card, DCC (Diners Club Card), JCB (Japan Credit Bureau), AMEX…

Custom Payment Gateway Solution for High Risk Businesses

Can Mathematica factor multivariate polynomials with 4 or more variables? And with high degrees (>10)

The Mathematica documentation clearly states

the Wolfram Language routinely factors degree-100 polynomials in 3 variables

I’m interested in factoring systems of polynomials in as many as 10 or 20 variables. The systems I have are sparse in the sense that if there are 20 variables then likely no more than 3-6 variables will appear per equation and there will likely only be two terms per equation. I’ve used Solve to test on some small systems with success. To be clear, we don’t actually need to factor the polynomials necessarily. If we factor them, then we have what we need. What we really want are the roots to the system with respect to the symbolic coefficients. Solve worked for some small test systems. Factor would also work for a single polynomial, but we need a system of polynomials and I don’t see that Factor will take a system.

I’ve looked at papers by searching scholar.google.com and it seems our problem is a solved problem in mathematics. Algorithms seem to exist for such a problem, but I’m even unclear on this since the papers are too densely packed with math for me to easily understand.

Any help would be appreciated.