Corrosion, Serious Problem in All Countries
Posted on | September 28, 2009 | No Comments
Corrosion or rust occurs continuously without stopping. There is no materials that could avoid corrosion. Corrosion occurs because caused by a process that occurs in elekrtokimia metal or alloy caused by the presence of electrolytes (liquid / acid solution, salts, minerals that can deliver electricity / conductor).
A result of material / metal degrades the quality deterioration of the physical quality material becomes brown / rust that strengthen the effect of the material also decreases. Indonesia has never calculate quantitatively the amount of loss due to corrosion. But the amount of corrosion losses in the U.S. reached 15 billion dollar per year or about 15 trillion rupiah. If the Indonesian state budget is 30 trillion per year, the loss of corrosion in the United States is equal to half the value of our state budget per year. If losses due to corrosion attacks in Indonesia, approximately 10% of the American losses amounted to 1.5 trillion rupiah per year, not including lost production hours, damages, claims, repair costs, and others.
If Indonesia can prevent corrosion damage only 0.5 trillion per year, then every 2 years will come new jobs for citizens of Indonesia. Merely illustrative, not rare night bus or pickup truck lost control due to brake free from tension due to leaking hydraulic pipe corrosion attacked. Passenger-laden ship sank due to a leaky plates attacked by corrosion, aircraft failed to land because the “landing gear” is not working due to leaking hidrolisnya system. All of this type of accident causing damage very large material loss of life, body and morale that can not be measured in money.
Corrosion attack is obviously a very big danger, even bigger than the consequences of natural disasters, but because of our commonness of the corrosion attack of evil and danger that such a large loss that occurs without any of us realize or know. Ironically we willingly accept all the risk of loss. The easiest example for instance if the car’s exhaust / motor we leaked, at least with a little grumbling we bring the vehicle to the garage to repair or even replace it with the cost is not cheap. Whereas corrosion attack can be prevented so that the cost does not become very expensive. That’s why a corrosion engineer always reminded that “Prevention of corrosion in many ways is a long-term investment”
Don’t Brush Teeth Immediately after Drinking Softdrink or Juice
Posted on | September 20, 2009 | No Comments
For fans of the drink cola or orange juice noticed this appeal. German pharmacists association recommends 30 minutes of waiting time if you want to brush after drinking cola and orange juice.
High acid content of two drinks can lead to damage tooth enamel. Waiting for half an hour is ideal for tooth enamel is hard enough than just consume two drinks. Rules toothbrush after 30 minutes of juice or cola drinks should not be ignored. Juice beverages except fruit juice is very acidic peach compared to coffee drinks, tea, beer or wine to lower acid levels.
Earlier researchers at NYU College of Dentistry has launch his discovery that a lot of sports drinks sold also contains citric acid can damage the teeth.
This research was conducted by soaking the teeth for 90 minutes, as a simulation for those who like to drink sports drinks throughout the day. It turned out some tooth enamel is gone.
This is because sports drinks are leaked to the bottom layer of enamel, causing the teeth become soft and weak. This condition is called dental erosion could easily result in damage and loss of teeth if not treated immediately.
Excessive Eating can Lead to Disease
Posted on | September 18, 2009 | No Comments
Disease that often arise due to uncontrolled eating is a digestive disorders, such as ulcers and diarrhea. This is caused by eating the sudden shock caused stomach.
The condition can occur because during the fasting stomach digest food little by little. In addition to gastritis and diarrhea, which also need to watch out for is a disease of diabetes, especially for people who have a history of the disease. If it is not wise to regulate food, will increase blood sugar levels that are not desirable.
Sweet foods derived from simple carbohydrates the body will be easily absorbed. This will spur insulin rises. If the insulin rises and reduced physical activity, will cause the accumulation of fat, so the body will be full of fat. Read more
Harmful Effects of Plastics Materials
Posted on | September 15, 2009 | No Comments
Chemicals contained in plastic that is very dangerous for human health. One of the most dangerous chemical is bisphenol A (BPA). These materials can stimulate cancer cell growth or increase the risk of pregnancy miscarriage!
The risk of health problems brought plastic material is affecting the health of children, because their organs are still very weak. Moreover, their immune systems are still not perfect. In fact, since birth, the baby’s body sometimes has given the plastic chemical, both from the use of pacifiers or bottles using other food containers. Exposure to the chemical content of plastic materials into this body to look out for.
Viewed from nature, divided into thermoplastic plastics and thermosets. Thermoplastics have the property, when heated will be plastic and if it continues heated to temperatures over 200 º C to melt. When the temperature then lowered (cooling), the plastic material will harden and can be formed again. Read more
1905: Introducing Einstein’s Theory of Relativity
Posted on | June 30, 2009 | No Comments
Albert Einstein is a famous man behind the theory of relativity is also famous. Scientist who was born on March 14, 1879, and died on April 18, 1955, is specialized in physics. He is a theoretical physicist widely regarded as the greatest scientist in the 20th century. On June 30, 1905, Einstein published a paper entitled On the Electrodynamics of Moving Bodies. Through the paper he introduced the theory of special relativity. Having formulated the theory of relativity, Einstein became famous throughout the world, an unusual achievement for a scientist. In his old age, beyond the fame in the history of all scientists. In popular culture, the word ‘Einstein’ is considered synonymous with intelligence or even genius.
Robot Contest Winner from Indonesia
Posted on | June 24, 2009 | No Comments
Unikom Robotics Team won gold in the contest Robo Games 2009, 12-14 June. Unikom sent two robots, namely V8 DU-114 and Next 116. Won the contest in the open category of autonomous fire fighting robot teams away from other countries.
Once again, the nation who scent Indonesia. We are able to do for this nation. We should be proud, in the midst of uncertainty of identity, there are a fixed konsirten do for the nation.
Welcome friends! Proudly about your champion!
Natural Gas
Posted on | December 5, 2008 | No Comments
Natural gas often also referred to as natural gas or marsh gas, is a fossil fuel is a gas that consists primarily of methane (CH4). He can be found in oil fields, gas fields and coal mines. When the gas rich in methane produced by anaerobic bacterial decomposition of organic materials other than fossil, then it is called biogas. Sources of biogas can be found in the swamp, garbage landfills, and storage of human and animal feces.
Chemical Composition
The main component of natural gas is methane (CH4), which is the shortest chain hydrocarbon molecules and the lightest. Natural gas also contains molecules heavier hydrocarbons such as ethane (C2H6), propane (C3H8) and butane (C4H10), as well as gases that contain sulfur (sulfur). Natural gas is also a major source for the helium source.
Methane is a greenhouse gas that can create global warming when released into the atmosphere, and is generally Read more
Obtaining Natural Gas Sample
Posted on | September 12, 2008 | 2 Comments
In the analysis of natural gas quality, early stage to consider is taking a sample (sampling). Contaminants are carried at the time of sampling will certainly affect the results of the analysis. The main purpose of the sampling process is to obtain a representative sample that represents the product of the source / point-making, which is required for the purposes of physical and chemical analysis of these products in the laboratory, with the parameters and test methods specified.
Standard Methods:
1. ASTM D 1145: Test Method for Sampling Natural Gas
The procedure was differentiated based on the content of the gas to be analyzed,
Needs some differential sampling methods, namely:
- Natural gas to the main content of hydrocarbons and nitrogen,
- Natural gas that containing hydrogen sulfide and organic sulfur or other sulfur contaminants,
- Natural gas that containing CO2,
- Natural gas that containing gasoline and condensate,
2. GPA 2166: Obtaining Natural Gas Samples for Analysis by Gas Chromatography
Sampling methods based on the conditions of temperature, pressure source of gas samples and equipment available. With standard sampling procedures performed to obtain GPA spot representative sample container for analysis in laboratory. Some of the existing sampling procedures, suitable for wet gas sampling (wet / rich Natural Gas) at a pressure of 1100 psig, while for the (dry / lean Natural Gas) there is no specific limit to the pressure. Read more
Earth Friendly
Posted on | April 22, 2008 | No Comments
Green Living or live in harmony with the environment, must be part of our daily life. Here are some steps we can do to reduce Greenhouse Gas Exchange in order to slow global warming.
- Familiarize to planting some trees and using the plant as a living fence.
- Avoid burning trash. Choose your organic waste and non-organic. Organic waste can be used to make compost.
- ·Save energy, such as turn off the lights and electronic equipment when not needed, use energy efficient lights and do not let the refrigerator door open too long.
- Use the two sides of paper, recycling paper and using materials recycled.
- Bring own shopping bag (of cloth) to avoid the use of plastic bags.
- Avoid the use of elevators and escalators, if up and down, at least for 2-story floor, to save electricity.
- Try using public transportation and vehicles environmentally friendly fuel such as gas and biodiesel.
- For the near distance, try not to use motor vehicles, better walk, or use a bicycle.
- Take care of the engine periodically to vehicle emissions minimal.
- Rest your vehicle at least two days a week.
[image: outzpark]
The Earth Day
Posted on | April 22, 2008 | No Comments
Today is The Earth Day. Give even a speck of respect for our Earth. Earth is home to all the people. Earth Day was first conceived by Gaylord Nelson, a member of the United States Senate in 1963. The idea was a momentum to learn about the Earth and how to maintain it.
If only 200 thousand citizens of Jakarta which has a private car took time to work at home one day a week, the cost of national consumption could save USD $ 2.6 trillion per year. Meanwhile, exhaust emissions can be reduced to reach 30 million tons per year. The amount is equivalent to planting 30 million trees over 30 years.
Various events and natural disasters that hit the earth inhabitants from floods, landslides, droughts, to changing rainfall patterns is a natural calling remind people about the environmental damage that must be faced today. Read more
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