Tubeless Tyres

MRF makes tubeless tyres for a wide variety of vehicles. Tubeless tyre is a tyre that does not require a separate rubber inner tube for inflation. Inner liner/layer of the tyre is the tube itself. The inner liner/layer is constructed of halo-butyl/chlorobutyl and other materials. These chemicals are basically resistant to heat and reduce permeation of air.

The rim of the tyre will act as a sealant for the air inside the tyre. The air valve is directly kept on the rim to pump air directly into the tyre. If a tubeless tyre gets punctured, air escapes only through the hole created by the nail, leading to a gentle deflation of the tyre. Thus giving a substantial time between a puncture and a flat tyre. In case of a total loss of air inside the tyre, it is likely that the bead (part of the tyre that is shaped to lock into the edge of the rim upon inflation) will collapse inside the rim-well rather than come off it.

In the Indian market, 3 repairing methods are available. 1. PLUG METHOD. (Mushroom type). This method is strongly recommended by Bridgestone. The repair from tyre inside gives a permanent, strong and airtight repairing. 2. FILLER METHOD. This method is recommended by Bridgestone and is commonly used in the market. This method is cost effective and saves labour time. 3. PATCH METHOD. Bridgestone does not recommend. Applying a patch inside the tyre stops air leakage due to puncture, but steel belts get exposed to water moisture.

http://www.bridgestone.co.in/ Tyres /Tyre Knowledge/Tubeless Tyres

For, tubeless tyre users, puncture kits are also available at all Goodyear tyre shops. Tyre can be repaired in a few easy steps. The use of liquid sealants does not meet standard requirements of puncture repair and is not permanent repair.

Advantages:

The advantages of the tubeless tyres include less accident that occurs due to tyre burst, especially at very high speed. In case of conventional tyres, temperatures generated at high speed (more than 100 Kmph) expand the tube which can burst easily in case of sudden sharp penetration causing grievous accident. Also, incorrect tyre fitment, or friction between the tyre wall and inner tube generating excess heat causing a blowout.

In other advantages of tubeless tyres compared to tube type tyres are better fuel efficiency as light weight due to absence of the tube, better heat dissipation as air in direct contact with rim, less balance weight required as no unbalance due to tube. 

Tubeless tyres can avoid other tube troubles like ballooning, open splice, spurious tubes, pinholes, tube mounting damage and cost of a tube and its maintenance.

Disadvantages:

Tubeless tyres are heavier than the standard tyres. They are costlier compared to normal tyres. They worn out easily and should be replaced regularly. A thread goes off easily and it should be replaced or else it will result in sudden damage to the vehicle and reduces the control of the vehicle. Small roadside puncture repairers cannot fix them. Needs proper tools so that the tread is not damaged in dismount (mount). Cannot be used on very badly rims. 

http://www.autocarindia.com

Advantages of tubeless tyres outweigh the disadvantages when compared to conventional tyres.

Update 1 [24.01.2014]:

JK TYRE: HIGH PERFORMANCE TUBELESS TYRES

 

Blood Glucose Meter

Diabetes is a chronic disease in which the body does not make, or does not properly use, insulin. Insulin is the hormone that helps your body use the energy from sugar, starches and other foods. The result is that your body doesn't get the energy it needs, and unmetabolized glucose (undigested sugar), builds up in your blood causing damage to the body and its systems.

 

Glucose is a form of sugar produced when the body digests carbohydrates (sugars and starches). Glucose is the body's major fuel for the energy it needs. When insulin is absent or ineffective, the blood glucose (blood sugar) level increases. High blood glucose levels can lead to both short and long-term problems.

 

At present, no cure is available for diabetes. But with regular self-monitoring of blood glucose and a proper combination of diet, exercise and medication, people with diabetes lead active, healthy lives.

 

Self-monitoring of blood sugar levels with the help of medical device: 

 

A glucose meter (or glucometer) is a medical device for determining the approximate concentration of glucose in the blood. It is a key element of home blood glucose monitoring (HBGM) by people with diabetes mellitus or with proneness to hypoglycemia. (In hypoglycemia, blood glucose can drop too low, especially if you are using diabetes medications or insulin). A small drop of blood obtained by pricking the skin (Usually from fingertips) with a lancet device and placed on a disposable test strip, which the meter reads and uses to calculate the blood glucose level. The meter then displays the level in mg/dl or mmol/l digitally.

 

Glucometer readings are good enough for self monitoring of blood sugars. A difference of 5-10% is acceptable between glucometer and lab values. This is because home blood glucose meters measure the glucose in whole blood while most lab tests measure the glucose in plasma (one of the components of blood) and Glucose levels in plasma are generally 10-15% higher than glucose measurements in whole blood.

 

Different types of meters are commercially available. They differ in several ways including amount of blood needed for each test, testing speed, overall size, ability to store test results in memory, cost of the meter, cost of the test strips used, etc. Some glucose meters allow testing blood from alternative sites, such as the upper arm, forearm, base of the thumb, and thigh. Latest technological advances have allowed cutting down the cost of the devices. They also offer advance features like temperature corrected results. You should get training from a diabetes educator. You should know how to use your glucose meter and interpret its results. Make sure your meter works properly.

 

Many glucometers have data transfer facilities. Data can be transferred to computer through cable or infrared for the readings, graphs, monitoring insulin doses, etc with the help of diabetes management software. You should be technical minded for this.

 

Tests after diet, exercise or medication help to understand its impacts on blood sugar levels and help us to adjust the medication as per needs.

Check it with lab frequently. Keep track of all the readings of lab and taken at home. Do not forget to take it when you visit the doctor.