Pentachlorophenol is a phenolic compound that was chlorinated. Pentachlorophenol very toxic for our breath, cause dermatitis on skin and more toxic than inorganic solvent.
Pentachlorophenol waste almost dissolvable in water so degradation process is very hard. Some ways have been done to solve biological waste problem, but not efficient enough. For example, active carbon just involve pollutant absorption without decomposition process. Chemical oxidation process can’t decomposition all of organic compound be carbon dioxide and water, and have been used in high concentration waste.
Many century ago, scientist success to describe phenomenon photocatalytic in surface of metal-oxide semiconductor. Firstly, have been issued by Renz in 1921 until 1960, and not responding by scientist. Photocatalytic semiconductor popularity increase since publication Akira Fujishima in Nature magazine was issued in 1972. He was reported decomposition water be oxygen and hydrogen used single crystal TiO2 with input UV light in low energy.
First research, TiO2 have been used as photocatalytic suspension system. Nowadays, the uses TiO2 as photocatalytic is used in thin plate shape, which is immobilization TiO2 to many kinds of supported material like fiber, glass, silica, and titanium plat.
Senin, 27 Juli 2009
sigma-team.net - Alien Shooter Game overview
The endless darkness and the somber, long passages of a military complex have become the abode of evil, as thousands of blood-thirsty creatures fill its offices, storehouses and mysterious laboratories.
Your mission is simple: clear the base at all costs. You will be provided with explosives to help you gain access to the teleporters from which pour thousands of pitiless creatures. A stationary gun will aid in the defense of the area. You have been granted access to the most advanced weapons technology money can buy. As you earn your pay, you can equip yourself additional weapons in the arming area and biomechanical implants that will make your fighting abilities super human.
The alien invasion has begun, we have one chance, and that is to stop them cold in their staging area. Do not allow them the escape this facility, you are our last hope. The fate of humanity now depends on you!
Your mission is simple: clear the base at all costs. You will be provided with explosives to help you gain access to the teleporters from which pour thousands of pitiless creatures. A stationary gun will aid in the defense of the area. You have been granted access to the most advanced weapons technology money can buy. As you earn your pay, you can equip yourself additional weapons in the arming area and biomechanical implants that will make your fighting abilities super human.
The alien invasion has begun, we have one chance, and that is to stop them cold in their staging area. Do not allow them the escape this facility, you are our last hope. The fate of humanity now depends on you!
the risk if you smoke
you will lose a lot money if you smoke, illustration if you smoke one pack of cigarettes a day at $2.00 per pack, you spend $730 per year. If your habit has continued for a period of 20 years you will have spent an incredible $14,600! If you smoke two packs for that same period of time, you will spend $29,200!
You will be twelve times more likely to die from lung cancer. ten times more likely to die from some form of lung disease. ten times more likely to die from cancer of the larynx. six times more likely to die of heart disease. twice as likely to die of a stroke.
not only for your health, you also help your friends and human around you to die, yes you help them to die faster
You will be twelve times more likely to die from lung cancer. ten times more likely to die from some form of lung disease. ten times more likely to die from cancer of the larynx. six times more likely to die of heart disease. twice as likely to die of a stroke.
not only for your health, you also help your friends and human around you to die, yes you help them to die faster
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