Synchronous drives represent a modern and efficient system of power transmission. They essentially combine the advantages of mechanical components (gears & chain) and flexible components (flat & V-belts) while eliminating the inherent disadvantages of these components.

The main components of a synchronous drive are the tensile cords, the teeth, rubber backing and tooth facing. Steel was originally used as a tensile cord material. Most belts today use high modulus (low-stretch) fiberglass or aramid fiber as the tensile member. Tensile cord is the load bearing element of the synchronous belt. The belt teeth are molded of a hard rubber compound jacketed with a tough, abrasion resistant nylon tooth facing. The compressive and shear strength of the teeth exceeds that of the tensile cords when there are at least six teeth in mesh with the driver pulley. A durable rubber backing encases the load bearing tensile cord. It protects the cords from dirt, oil and other contaminants, as well as frictional wear when a backside idler is used.

Synchronous belts operate on a basic principle: molded teeth of the belt and mating grooves of the pulley make positive engagement. The teeth enter and leave the pulley in a smooth rolling manner with low friction. This positive engagement results in exact shaft synchronization, elimination of slippage and speed loss common to v-belts. Synchronous operation at speeds higher than most chain drives.

When to use a synchronous belt drive? There are many situations. For example, high mechanical drive efficiency and energy savings are required. Compact drive layout is necessary. Low maintenance is required or low noise is required.

All synchronous belts operate on the positive engagement principle. Chains operate on the same principle but synchronous belts have many superior characteristics. The latter wrap around the pulley by means of flexion and not by rotation of articulated parts which eliminates one of the causes of wear and noise. With them, the required take-up allowances for tensioning are significantly less. Synchronous belts have no hidden costs. They have larger availability of ratios and lengths.

A transformer is a static device, which is responsible for the transmission of power in different voltage rating from one circuit to another through electromagnetic induction. It plays a major role in stepping-up or stepping down the voltage level. It is made of different components and having knowledge of each and every of its part, is compulsory to know the device better. Here are some of its basic components that you should know, so, let’s have a look at them.

• Core: It acts as a major support of the transformer that provides a low reluctance path for the flow of magnetic flux. Its diameter totally depends on the voltage level, current and frequency as well, which is directly proportional to iron loss.
• Winding: Another major component of a transformer is its winding made of copper. It gets classified into two different factors based on input as well as output supply, or voltage range. Most of the windings are made of copper because; it has high conductivity and ductility. This device basically has primary and secondary windings that make electricity transmission easier.
• Insulating Materials: Basically, insulating paper and cardboard are two different insulating materials that are used for isolating primary and secondary windings with the main core. Apart from the above material, oil also falls into the same category that smoothens the working of the device and plays a vital role in improving its performance.
• Tap Changer: It allows variable turn ratio and is mainly installed on high-voltage, low-current winding to minimize the current load during the working of the device. Its main function is to regulate the output voltage by adjusting a number of turns in one winding.
• Cooling Tubes: As the name says, these tubes are ideal to lower down the heating level of the transformer oil. Their cooling is important to ensure the proper circulation and smooth operation of the device.
• Explosion Vent: Explosion in the transformer is the major problems that occur due to the rise in the transformer oil temperature and to eject the boiling oil reaching the main point the use of explosion vent is compulsory in the device.

These are some of the common parts a transformer has; there are many others that you should know before investing in the same. In an order to invest in the ideal device, you first have to make a contact with the reliable company that meets your expectations and offer you the device without breaking your banks.

Maserati has introduced a new sports car called Maserati MC20. As far as engine power is concerned, this vehicle is powered by a 630HP V6 twin-turbo engine. In the future, there is going to be an all-electric variant as well. This two-seater coupe features a minimalist cabin devoted to the driver. The carbon fiber structure and the aluminum sub frame is allocated for the power train and suspension. This is the reason the vehicle is lightweight and offers highest performance possible. Let’s find out more about the supercar.

Performance, Transmission and Engine

Manufacturer is using this vehicle as a way to launch a twin-turbocharged V6 engine. The new engine comes with a combustion system that can be found in Formula 1 sports cars. It is coupled with an 8-speed automatic transmission system.

The engine is so powerful that it can go from 0 to 100 kilometers per hour in less than 3 seconds. The vehicle can achieve a top speed of 200 miles per hour. You can also get an all-electric variant of this vehicle. This variant features an all-wheel-drive. All of the variants allow you to adjust the suspension system.

Fuel Economy

As far as fuel economy is concerned, high powered sports vehicles consume more fuel compared with regular cars. For example, Mercedes-AMG’s GT offers a fuel economy of 22 miles per gallon on highway in an efficient arrangement. According to researchers, the fuel economy of MC20 will be much closer to this range. The engineers are hopeful that the all electric variant can do up to 235 miles on a single charge.

Cargo, Comfort and Interior

The butterfly doors of this vehicle allow you to access the two seat cabin. The interior design is minimalistic and clean. The centre console only provides access to the most essential controls.

You can find black leather seats, carbon fiber trim, and aluminum pedals. For real word visibility, there is a digital rear view mirror powered by the rear facing camera.

Connectivity and Infotainment

The vehicle comes with a powerful infotainment system. Rumors are that the new vehicle will have a horizontal touch screen in the centre of the dashboard. The size of the touch screen is not known yet, but it may be a little bigger than the predecessors.

Driver-Assistance Features

The MC20 needs to undergo the crash test by the National Highway Traffic Safety Administration. But we know that it won’t pass the test as these vehicles are not designed for this type of scrutiny. But we hope that the vehicle will come with a lot of driver assistance features. Given below are the list of some of the primary safety features of this vehicle:

• Emergency Braking System
• Lane assistance
• Adaptive cruise control
• Warranty

Expectations are that there the vehicle will be available with regular warranty package just like other models.

In short, this was a description of some of the common features of 2021 Maserati MC20.

The US electric grid is a mammoth, complex network of independently owned and operated power plants and transmission lines. Most of the currently available infrastructure was put in place across the 1950s and 60s. Its sheer age is now earning commentary like this, on NPR:

“The U.S. power grid is often equated to a highway system, one that has been seriously neglected and is now being pushed to its limits with the demands of our growing and changing energy needs. As we see the rise in demand for renewable energy sources to combat the environmental ramifications of fossil fuels, the grid will continue to be proven antiquated and in need of reinvention.”

The Department of Energy estimates that demand for electricity has increased by around 25 % since 1990 while construction of transmission facilities dropped 30%. According to Media Company Red Herring Inc., energy demand in the US is likely to surge 32% by 2015.

The grid failure of 2003 that affected the lives of over 50 million people is an oft-quoted example to underline the necessity of modernizing the US power grid. This is not just to deal with growing demand, but also to accommodate the new focus on renewable energy sources like wind, solar and hydro power: which are not easily inter-connectable to the existing grid without significant refurbishing. The goal, of course, is to address long term energy security. Opting for renewable energy and putting in place infrastructure like ‘smart grids’, however, calls for a sizable investment.

A key target to reduce energy lost in the distribution process is the emergence of higher efficiency requirements for power and distribution transformers. Currently, transformers are responsible for a sizable amount of the energy lost and it is here that the DOE is introducing rules to increase efficiency. According to the rules published by the DOE, the cost of liquid-immersed distribution transformers increases by up to 12%, but should decrease electrical losses by as much as 23%. It could also raise the cost of medium-voltage, dry-type transformers by up to 13%, but should decrease electrical losses by as much as 26%.

Although much of the energy efficient technology is a little more expensive, private and government-owned utilities have begun to invest in it for the reliability it ensures. Additionally, the initial investment more than pays for itself in the long run, due to the decreased energy lost in the transmission and distribution system.

The 5G industrial-grade sim card router is a high-speed industrial IoT router that provides a solution for users to access 5G networks through WIFI or network ports. The 5G industrial-grade router supports SA/NSA dual-mode 5G, provides 4G/5G full Netcom high-speed network services, supports dual-card dual-standby + wired broadband three-channel intelligent redundant backup, making communication safe and reliable. It adopts a high-performance 32-bit ARM processor and has multiple functions such as APN private network, VPN, mandatory portal, and flow control.

The 5G industrial-grade wireless router determines the compatible network standard through the built-in 5G module, which is generally backward compatible with 4G, 3G, and 2G, and will automatically switch in areas with unstable 5G signals.

Industrial-grade 5G routers are generally more stable than civilian-grade 5G wireless routers on the market, and the cost is also higher. Currently widely used in the M2M industry in the IoT industry chain, such as smart life, smart grid, smart transportation, industrial automation, smart buildings, public safety, environmental monitoring, smart agriculture and other fields.

1. The working principle of industrial 5G routers

First insert a tariff card (SIM card) into the 5G router, and dial-up connection through the operator’s 5G network. Users can realize data transmission and high-speed Internet access through the Ethernet port, Wi-Fi, and serial port, and remotely interact with big data transmission.

Second, the characteristics of industrial 5G routers

1. Industrial grade design: 100% industrial grade standard, all EMC indicators meet the standard. The hardware indicators completely follow the industrial-grade standard design, which can better meet the needs of industry and the demand for high-precision remote data transmission. Satisfy 5~35VDC wide voltage, -40~+80ºC cold and high temperature resistance, anti-interference, 24 hours all-weather operation.

2. Small size design: The industrial router adopts a highly integrated design, which is easy to be embedded, and has a variety of network port designs, which is more scalable.

3. Remote upgrade: support remote management, remote firmware upgrade, and remote troubleshooting to facilitate remote management of equipment and greatly reduce maintenance costs.

4. Anti-drop setting: adopt watchdog detection mechanism and hardware multi-level detection to ensure that the device does not crash. Multiple monitoring and guarantee mechanisms ensure that the equipment can remain online permanently.

5. Positioning function: accurate base station positioning, accurate real-time reporting of geographic location information, and support for site positioning applications. The precise positioning function can ensure the accuracy of data transmission and the accuracy of monitoring.

6. 5G industrial routers also have attributes such as scalable interfaces, traffic statistics, and upper-layer application development, which can be used in a wider range of occasions. Function integration and performance development can be carried out according to the needs of different industries.

Just as the name suggests, All Terrain Vehicles, ATVs can be driven through all kinds of terrain that might otherwise be considered formidable for other vehicles. Their biggest assets are their balloon like tires and excellent suspension that makes even rugged terrain a smooth ride for the driver.

Honda introduced its first ATV way back in 1970 as a 3 wheeler with a small 90cc engine, dual range transmission (Hi/Lo) with 4 gears, and an automatic clutch. Constant modifications and up gradation of technology based on research and experience followed, and today Honda caters to both, those looking for recreational fun off the road and those engaged in hard work with their state of the art Utility and Sports, 4 wheeler ATV models.

The Honda ATV is built tough with exceptional reliability and is known to incorporate their innovative research based technology, thus making their vehicles unique and without compare. Honda ATVs offer Sports as well as Utility models.

Sports Models

The Honda TRX450R is a top of the line sports model that is lightweight and its manual 5 speed transmission allows the rider to choose the best gear ratio for the riding conditions.

The Honda TRX400EX also offers many great features at a slightly lower price. The TRX400 has a 5 speed manual transmission, but it also comes with a reverse gear to help you back out of those difficult situations.

For those looking for a full sized Sport Honda ATV at a lower price, the Honda TRX300 comes with many great features and a lower price.

Utility Models

World renowned reliability, advanced technology, and innovative designs are the hallmark of Utility Honda ATV Models. Class and quality, performance as well as appearance set these Honda ATVs apart from other machines.

One of the top of the line models, the Honda Rincon, comes with a 675cc liquid cooled, semi-dry sump, longitudinally mounted, single cylinder, four stroke engine. The Honda Rubicon comes a close second with a powerful 499cc four stroke engine. Machines like the Rancher, the Foreman and Recon only add to the impressive array of options.

Dealers of ATVs all over the world display these machines with style and flair on their websites each offering their own special discounts and value added services, safe and secure transactions, after sales services and all the required know how and information one could think of prior to purchase.

In-house machine shops are rarely found in most auto repair shops. But for those that have them, the mechanics can go far beyond diagnosing and servicing vehicles by repairing, re-engineering, or re-manufacturing automotive parts. The special equipment in an automotive shop with an in-house machine shop allows for specialized cuts, sanding, drilling, grinding, knurling (cut in patterns to allow for a better grip) and welding parts to customize or repair them. In-house machine shops are also used for the manufacture of parts in metal or plastic.

With this technology, mechanics can offer fully functional parts they need to complete a repair, customers receive a faster repair, and the one-stop service often saves them money.

Rebuilding Major Parts

For vehicles, machine shops are used to modify vehicle parts for repair, build custom add-ons or to improve performance by fine turning a part. They are used on parts for brakes, clutches, transmissions, drive lines, and engines. Examples include rebuilding engines, which is a lot less expensive than buying another car, and can double the life of the car while improving mileage and performance. Carsdirect.com points out another option machine shops can handle – modifying your vehicle to install a lower-mileage engine.

The same reasoning applies to rebuilt transmissions. It’s a cost-effective way to get a vehicle back on the road without resorting to purchasing a new car. Transmission rebuilds are a major service in most shops with in-house machinery.

Replacing and Upgrading Parts and Systems

Machine shops can also replace many parts on a vehicle with a stronger one to improve performance such as replacing manufacturer torque converters with more powerful ones that improve transmission resilience and help improve fuel economy.

Clutch replacement is a popular service for drivers who want to convert from an automatic to a manual shift for a more exciting driving experience or to simply save on gasoline. With manual shifting comes clutch repair, particularly for drivers learning to use a clutch.

If you want to follow the car in Bruce Springsteen’s Racing in the Streets, machine shops can install a fuelie head, but not for your ’69 Chevy: fuelie heads are for Corvettes and only the ’57 Chevy. The 396 engines were too big for them, apparently but a good shop can rebuild the heads.

Popular Mechanics notes that today’s manufacturers have done a good job redesigning a lot of car and truck systems to meet stricter emission and fuel efficiency standards. Still, there are upgrades that can boost performance and are best done in a machine shop to handle any necessary modifications:

• Adjustable top strut mounts and chassis braces that replace rubber mounts and improve alignment.
• Larger, noise-reduction back exhaust catalyst
• Stiffer motor mounts to improve engine response and precision handling
• Less restrictive cold air intake to boost engine efficiency at higher speeds
• Stainless steel braided brake lines for faster response and reduced rupturing

A moped is typically a two wheeled vehicle resembling a motorbike. The differences between a motorbike and a mopeds are difficult to quantify, but typically will include some of the following factors.

Modern mopeds will often have a step through design rather than a motorbikes step over mounting system. Most mopeds are also equipped with an automatic transmission as opposed to a manual transmission on most motorbikes. Perhaps one of the main attractions of a mopeds is the simplistic twist throttle control, which, coupled with the lack of gears makes the process of travelling, simply a matter of twisting the right handlebar throttle.

Although most mopeds fall between the 50CC and 125CC range, there are also many 150CC mopeds even going as high as 500 CC.

Up until the 1980s, many mopeds had pushbike pedals, to allow the rider to actually peddle the bike for some distance.

These days, most mopeds do not have pedals, and the term is a generic phrase used to describe smaller motorbikes typically under 125CC. However mopeds exist that have a cubic capacity far higher than this, and the line between high end mopeds and a motorcycle can seem blurred.

Most mopeds have an automatic transmission, and the vast majority have a step through design.

In the UK, a provisional driving license can be obtained by anybody over the age of 16. However at this age only mopeds under 50CC can be licensed legally. The provisional licence is given only to those who pass a CBT.

C.B.T. stands for “Compulsory Basic Training” Many times you will hear it referred to as compulsory bike training.the latter is incorrect.

At age 17 and above, the CBT entitles the rider to ride a bike up to 125CC. And the 30 mile an hour speed restriction is lifted.

Mopeds safety, requires that all riders wear a motorcycle helmet, it is also recommended that riders wear brightly coloured clothing and scuff and impact proof armour. Most modern lightweight motorcycle clothing includes this armour in the form of shoulder pads knee-pads and elbow pads.

Modern mopeds have a fantastic fuel economy, often able to do close to 120km per gallon. In addition to the savings on fuel, this also reduces substantially the carbon dioxide emissions per mile.

With fuel prices increasing, the demand for mopeds has risen steadily in the last four years. They offer a practical and cheap solution for many applications where only one person is required to travel without a great deal of luggage. It has become quite common for car owners to own a mopeds as a second vehicle to cut down on costs for many local journeys.

Radio communications have come a long way from the original concept derived by Marconi’s discovery of electro-magnetic radiation (radio waves). Marconi conceived that an electro-magnetic pulse, sent through the air, would create an electron flow (flux) when it passes through a non-ferrous metal source. Such an electron flow can then be amplified to create sound if the pulses are emitted a certain way. This is the simplest representation of what Marconi discovered, and by its revelation many things have become clear. Many possibilities have derived from such thought, and clearly all mans inventions come from such seemingly small realizations.

At its base, radio communication is fairly simple. During this modern age there are many forms, so many in fact that their discussion will be outside the scope of this article. Basically, we have two forms of Radio Communication in the hobby realm. Citizen’s Band and Short Wave are the two that most of us are familiar with. Though short wave offers many optional communication modes, we are going to look at ‘full duplex’ and ‘half- duplex’ modes involving AM (amplitude modulation) communications.

Modes of Communication

1). In full-duplex mode a radio is capable of transmitting and receiving date or voice over two channels at the same time. This is important for transmitting visual and voice date as in television. Ham radios are capable of such transmission, but we will not delve that far into it here. Microwave communication is another form of full-duplex transmission. Cell phones have this capability and ham radio operators can definitely tune their radio and hear your telephone conversations.

2). In half-duplex we have the ability to transmit and receive on one channel, but not at the same time. The radios we normally use, CB’s or Walkie Talkie, operate in half-duplex mode. Ham radio communications are common done in this mode too. As a consequence, we must make our own breaks during transmission so the people we are talking to can respond. Because of this, a protocol has been developed to assure proper etiquette during conversation. Words such as, ‘Roger’ and ‘Ten Four’ are used to indicate a transmission was received, or ask for confirmation it was received. In addition there are 10-Codes and Q-Codes that have developed in the United States. The ones listed below should be memorized as the most commonly used.

Most Common 10- Codes

* 10-1 Receiving Poorly

* 10-4 Ok, Message Received

* 10-7 Out of Service, Leaving Air (you’re going off the air)

* 10-8 In Service, subject to call (you’re back on the air)

* 10-9 Repeat Message

* 10-10 Transmission Completed, Standing By (you’ll be listening)

* 10-20 What’s your location? or “My location is… Commonly asked as What’s your 20?

Most Common Q-Codes

* QRM Man made noise, adjacent channel interference

* QRN Static noise

* QRO Increase power

* QRP Reduce power

* QRT Shut down, clear

* QSL Confirmation, often refers to confirmation cards exchanged by hams

* QSO Conversation

* QSX Standing by on the side

* QSY Move to another frequency

* QTH Address, location

For a beginner, the codes listed above are standard. Either the 10 Code or Q Code can be used interchangeably on the Citizens Band or Ham Radio arena. Ham operators have to be licensed in this country. This assures that an operator knows the rules of the road, and will not be unknowingly interfering with other communication bandwidth areas. It is possible to transmit into television frequencies and bandwidth, as well as interfere with cell telephone conversations and transmissions. In fact, short wave ham radio operators have the whole spectrum of frequencies available to them and inappropriate use can cause serious civil problems.

Fire and Police bands can be disrupted during emergencies; pilots can be misled and so on. This is way it is tightly regulated. However, it is much easier to get a license now, than in the past. You do not have to be an electronic technician anymore. Simply learning the rules of the road and proper use of the equipment can get you a basic ham radio license. As a beginner, you should buy a receiver and antenna system first. Enjoy listening to the different ham and citizen band conversations, as well as marine and private pilots. You’ll be able to listen to people from all around the world. I am sure it will amaze you and ‘pick’ your interest.

A good ham receiver can be bought for as little as $450.00, with an antenna and mast. Wiring can be included at around $250.00. You might even consider buying second-hand equipment for an even better deal, as many radio enthusiast’s upgrade looking for a way to save on their new purchase. Citizen band radios can be had for as low as $95.00, with 40 channels available. An antenna system for a CB home base would run about $180.00, while again you could find something cheaper second-hand. These are ballpark figures, but accurate enough. Citizen band radios do not require a license to operate. The units are transceivers, meaning they are capable of half-duplex mode transmitting and receiving. Power on these units is usually limited to 5-10 Watts. Your average ham has capabilities depending on license, to transmit at 1.5 KW (1500 watts), and are very powerful.

Whatever you decide, I hope you try the hobby of radio communication. It can be a great hobby you can share with family and friends. The real value is in the sharing and learning that you and your children will enjoy. It can spark interest in the electronics field, leading both you and the kids wanting to know more about the science and physics related to radios and how they work. All of this would be valuable and enduring, a guarantee of many memories that will last forever.

Good luck should you become involved. Have lots of fun and enjoy!

A mobile phone is a cordless telecommunication device. Basically, radio frequencies are responsible for linking mobile radio transmitters (or simply transmitters) to transmission and recipient base stations. Standard telephone networks are hooked up to users by the recipient stations. The geographic region offered by a cellular system is subdivided into areas called cells. Each cell has a central base station and two sets of designated transmission frequencies. One set is used by the base station and the other by mobile telephones.

To avoid radio intervention, each cell uses frequencies different from those used by its surrounding cells. However, cells that are sufficiently distant from each other can use the same frequencies. When a mobile telephone leaves one cell and enters another, the telephone call is transferred from one base station to another, and the set of transmission frequencies to the next, using a computerized switching system.

The process of transmitting radio frequencies from one cell phone to another can be made possible through the different parts and functions of the mobile phone.

These are the major parts of a mobile phone:

o LCD Screen – or Liquid Crystal Display is the screen in front with little electric powers. It is typically slim making it well fitting for battery powered cellular phones.

o Menu Button – this is the control key that activates the menu. The menu page has access to various phone functions like setting, reminders, games, messages, and media player.

o Keypad – is a cluster of alphanumeric keys in one pad. The keys are pressed to input data, like when composing a message, or inputting the number to be called.

o Antenna – it emits and picks up radio signals. Some earlier variations of cellular phones have antennas attached outside the handset. Antennas in later models are built internally.

o Battery – A device that stores energy and is handy in electric form. The earliest mobile phone batteries were made of Nickel Cadmium (NiCad). This element is believed to be environmentally harmful and needs to be disposed as toxic waste. It also causes interruptions in sending information when the battery is not charged properly. It has a tendency to lose its power quickly if not utilized properly and regularly. Nickel Cadmium tends to blight when overcharged.

Nickel Metal Hydride (NiMH) was used in the succeeding productions of batteries to resolve the problems that NiCad brought. They have no toxins and are relatively safe for the environment. They don’t need to be completely drained prior to recharging. However overcharging can affect the life of the battery too.

At present, most rechargeable batteries are made from Lithium ion. They last longer than NiMH, and can be overcharged without causing harm to the phone unit.

o Microphone – A device that picks up and receives sound energy. It can amplify sounds.

o Earpiece – This is also known as earphones, car kits or hands-free sets. An earpiece lets users talk to someone without holding the unit to their ears. This is very practical for people who are driving.

o Power switch – It is the button for turning on and off the mobile phone. A faulty power switch will not be able to turn on a unit. Always check its terminal leader if it is connected with the power IC.

o Battery terminal – It connects the battery to the mobile phone. These are usually the small shiny gold metals we see before placing the batteries.

o Power IC – This acts as a voltage regulator and power on. The whole unit will not work if this is faulty.

o Oscillator – also called clock frequency. It creates low frequencies, used to run digital components and helps to put off power on failure.

o Frequency divider – used in mobile phones to divide clock frequency and achieve accurate frequency to run digital components. This part is integrated radio ICs, the equivalent of Hagar IC or Mojoelner in Nokia mobile phones.

o CPU – Central Processing Unit is the brain of the mobile phone and controls the major parts of unit. It is vital in the boot testing process. CPU is vitally associated with memory chips and flash chips.

o Flash chips – Flash chips hold booting information. It has stored instructions for the CPU to control other components.