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Jumat, 23 September 2011
Jumat, 22 April 2011
preparation for starting school
school is one place to develop themselves in terms of learning, playing and socializing for the kids. certainly a lot of preparation that must be faced to prepare your child to start school. it is one of the school equipment. prepared from long before school starts, because the price of school supplies will rise, first you will fight with other people.
compulsory school supplies that your child should have is:
1. bag
2. pencil
3. bulpen
4. ruler
5. eraser
if all that you have prepared it means that your child is ready to learn
if you are too busy to look for school pelaratan you can find here:
personalized duffle bags
kids backpacks
just the information if you need gardening tools, you can also get here.
Dallas lawn maintenance
compulsory school supplies that your child should have is:
1. bag
2. pencil
3. bulpen
4. ruler
5. eraser
if all that you have prepared it means that your child is ready to learn
if you are too busy to look for school pelaratan you can find here:
personalized duffle bags
kids backpacks
just the information if you need gardening tools, you can also get here.
Dallas lawn maintenance
Selasa, 12 April 2011
Global warming
Global warming is not foreign to our ears a lot of people talk about global warning. do you know what it was global warning. Global warning is rising world temperatures due to excessive content of CO2 and NO2 in the air due to burning oil vehicles are converted into energy.
fuel consumption would mostly spent for the benefit of man. example is transportation.
Well, we know the car is very useful for humans in terms of time and energy. for a distance of 300 km / h takes only 2 days, 2 nights on foot while using the car journey took 6 hours. is this not very useful.
certainly beneficial to humans. but did you know that there are plants in the world are now very few. plant will serve to change the CO2 into O2. for human breathing. nah if there are plants already tidah what will happen? did you ever think about it
if you look at the picture above, you will see a continent. look at the result of human greed that once covered the continent banya trees have now disappeared, only some are left.
maybe 100 years that had a white translucent rain will turn into a black rain, resulting from contamination of CO2 in the air. not horrible. it is also filled with polar ice began to melt slowly but surely.
if you have this human masihkah be arrogant?
fuel consumption would mostly spent for the benefit of man. example is transportation.
Well, we know the car is very useful for humans in terms of time and energy. for a distance of 300 km / h takes only 2 days, 2 nights on foot while using the car journey took 6 hours. is this not very useful.
certainly beneficial to humans. but did you know that there are plants in the world are now very few. plant will serve to change the CO2 into O2. for human breathing. nah if there are plants already tidah what will happen? did you ever think about it
if you look at the picture above, you will see a continent. look at the result of human greed that once covered the continent banya trees have now disappeared, only some are left.
maybe 100 years that had a white translucent rain will turn into a black rain, resulting from contamination of CO2 in the air. not horrible. it is also filled with polar ice began to melt slowly but surely.
if you have this human masihkah be arrogant?
Minggu, 06 Maret 2011
pertanyaan yang mengubah hidupku
dahulu saat sedang berdiskusi dengan seorang teman yang suka mengeluarkan pertanyaan yang cukup mengelitik, pertanyaan demi pertanyaan pun di lontarkan. kemudian pertanyaan sampai di suatu titik dimana aku tidak bisa menjawabnya...
"apa yang akan kamu lakukan bila menjadi saya"
pertanyaan itu pun lambat laun membuat saya memikirkannya dan menjadi beban mental...
dari sebuah pertanyaan itu aku menjadi seorang pemain yang terlalu mencintai permainan bukan menjadi seorang pamain yang mengalahkan permainan itu. itu lah sejarah singkat yang bisa saya bagi untuk teman-teman. memang saya tidak menuliskan deskripsinya secara luas, karena saya sudah sangat malas untuk mengingat rasa pahit yang saya alami untuk menjawab pertanyaan itu.
namun kemarin saat sedang merenung entah dapat dari mana pemikiran itu. saya mendapatkan kesempatan belajar dari seorang pemenang, sang pengguasa dan sang wanita... kenyataan memang tidak mungkin di pungkiri, manusia tidak akan lepas dari 3 masalah harta, tahta, dan wanita. tentu manusia juga tidak akan luput dari kesalahan yang akan membuatnya jatuh kedalam pelukan cinta dari permainan hidup.
pelajaran ini berhubungan dengan pertanyaan teman ku ini.
dari sang pemenang saya mendapatkan hikmah, kegagalan harus dijadikan sebuah lecutan untuk masa depan.
dari sang penguasa saya mendapatkan bahwa kekuasaan atau tahta yang kita duduki itu rasanya sangat nikmat, sehingga enggan untuk meninggalkannya. sang penguasa tidak akan pernah puas dengan tahta yang didapatkannya.
dari sang wanita saya mendapatkan sebuak kebajikan, wanita bisa menyukai seorang laki-laki. dari sikapnya di hadapan kita. namun hal ini tidaklah absolute, seorang yang dapat meluluhkan hatinya lah yang akan dia pilih. bukan seorang yang pendiam dan menyudutkannya yang dia pilih.
inti dari persoalan ini adalah mereka bangga menjadi dirinya sendiri walaupun dengan kelemahannya. lalu apa hubungannya dengan pertanyaan temanku itu. apakah berhubungan? jelas hubungannya adalah mengapa saya harus menjadi dirinya dan bukan diri saya sendiri. kenapa saya harus bangga menjadi orang lain bukan menjadi diri saya sendiri. walau diri saya penuh kekurangan. ini lah estetika dari kehidupan pribadi manusia bukan menjadi orang lain bukan....
"apa yang akan kamu lakukan bila menjadi saya"
pertanyaan itu pun lambat laun membuat saya memikirkannya dan menjadi beban mental...
dari sebuah pertanyaan itu aku menjadi seorang pemain yang terlalu mencintai permainan bukan menjadi seorang pamain yang mengalahkan permainan itu. itu lah sejarah singkat yang bisa saya bagi untuk teman-teman. memang saya tidak menuliskan deskripsinya secara luas, karena saya sudah sangat malas untuk mengingat rasa pahit yang saya alami untuk menjawab pertanyaan itu.
namun kemarin saat sedang merenung entah dapat dari mana pemikiran itu. saya mendapatkan kesempatan belajar dari seorang pemenang, sang pengguasa dan sang wanita... kenyataan memang tidak mungkin di pungkiri, manusia tidak akan lepas dari 3 masalah harta, tahta, dan wanita. tentu manusia juga tidak akan luput dari kesalahan yang akan membuatnya jatuh kedalam pelukan cinta dari permainan hidup.
pelajaran ini berhubungan dengan pertanyaan teman ku ini.
dari sang pemenang saya mendapatkan hikmah, kegagalan harus dijadikan sebuah lecutan untuk masa depan.
dari sang penguasa saya mendapatkan bahwa kekuasaan atau tahta yang kita duduki itu rasanya sangat nikmat, sehingga enggan untuk meninggalkannya. sang penguasa tidak akan pernah puas dengan tahta yang didapatkannya.
dari sang wanita saya mendapatkan sebuak kebajikan, wanita bisa menyukai seorang laki-laki. dari sikapnya di hadapan kita. namun hal ini tidaklah absolute, seorang yang dapat meluluhkan hatinya lah yang akan dia pilih. bukan seorang yang pendiam dan menyudutkannya yang dia pilih.
inti dari persoalan ini adalah mereka bangga menjadi dirinya sendiri walaupun dengan kelemahannya. lalu apa hubungannya dengan pertanyaan temanku itu. apakah berhubungan? jelas hubungannya adalah mengapa saya harus menjadi dirinya dan bukan diri saya sendiri. kenapa saya harus bangga menjadi orang lain bukan menjadi diri saya sendiri. walau diri saya penuh kekurangan. ini lah estetika dari kehidupan pribadi manusia bukan menjadi orang lain bukan....
Minggu, 09 Januari 2011
how to make biodesel?
biodesel is biodiesel is a fuel engine / diesel engine which consists of alkyl esters of fatty acids.
Biodiesel can be made from vegetable oils or animal fats, but the most commonly used as raw material for making biodiesel is vegetable oil. Vegetable oil and biodiesel belong to the large class of organic compounds are the same, namely class-acid esters of fatty acids. However, is the triester of vegetable oil fatty acids with glycerol, or triglycerides, while biodiesel is a monoester fatty acids with methanol. Differences of this molecular form has some important consequences in the assessment both as a candidate fuel diesel engines:
1. Vegetable oils (ie triglycerides) large molecular weight, much larger than biodiesel (ie, methyl ester). As a result, relatively easy triglycerides experienced cracking (cracking) into various small molecules, when heated without contact with air (oxygen).
2. Vegetable oil has a viscosity (viscosity) is much larger than the diesel oil / diesel fuel or biodiesel, so penginjeksi fuel pump in a diesel engine was unable to produce fogging (atomization) is good when vegetable oil is sprayed into the burning room.
Biodiesel Production Process Intensification 5
3. Vegetable oil molecule is relatively more branched than the methyl ester fatty acids. As a result, vegetable oil cetane number is lower than the cetane number of methyl ester. Figures for ease of cetane is the benchmark light / burning of a fuel in diesel engines.
the stages in making biodesel
1. extraction of raw materials biodesel
raw material oil derived diesel typically vegetable materials extracted using solvents n-heksane. solvent n-heksane used because it easily dissolves triglycerides in the raw material. to pempercepat better at this stage add the heating. the extracted oil will be colored bright yellow to dark yellow. keep in mind the weight ratio of solvent and plant materials are very influential in this extraction stage. very nice if the add agiator.
2. distillation of the oil extraction
biodesel making is a reaction between triglycerides and methanol to produce methyl ester with glycerin byproducts. to obtain pure triglycerides should be separated between the solvent n-heksane with trigleseria with the distillation apparatus. with n-heksane boiling point of 60 degrees.
3. degumming
degumming stage is the stage of separation from a solution of gum resin of triglycerides that have been distilled. degumming stage is the stage of the addition of gum resin at a temperature of 60 degrees with the addition of H3PO4.
4.transetrerification or esterified
at this stage thing to note is whether the FFA biodesel raw material for making high or low. raw materials that have low FFA can use transesterification ..
if high oil FFA esterification use.
transesterification
This stage is pereaksian triglycerides with methanol with the aid of NaOH catalyst.
5. purification
biodesel purification can be performed with the addition of water at 10% of the volume of methyl esters in the can, then separate them with water in the heat.
1. Vegetable oils (ie triglycerides) large molecular weight, much larger than biodiesel (ie, methyl ester). As a result, relatively easy triglycerides experienced cracking (cracking) into various small molecules, when heated without contact with air (oxygen).
2. Vegetable oil has a viscosity (viscosity) is much larger than the diesel oil / diesel fuel or biodiesel, so penginjeksi fuel pump in a diesel engine was unable to produce fogging (atomization) is good when vegetable oil is sprayed into the burning room.
Biodiesel Production Process Intensification 5
3. Vegetable oil molecule is relatively more branched than the methyl ester fatty acids. As a result, vegetable oil cetane number is lower than the cetane number of methyl ester. Figures for ease of cetane is the benchmark light / burning of a fuel in diesel engines.
the stages in making biodesel
1. extraction of raw materials biodesel
raw material oil derived diesel typically vegetable materials extracted using solvents n-heksane. solvent n-heksane used because it easily dissolves triglycerides in the raw material. to pempercepat better at this stage add the heating. the extracted oil will be colored bright yellow to dark yellow. keep in mind the weight ratio of solvent and plant materials are very influential in this extraction stage. very nice if the add agiator.
2. distillation of the oil extraction
biodesel making is a reaction between triglycerides and methanol to produce methyl ester with glycerin byproducts. to obtain pure triglycerides should be separated between the solvent n-heksane with trigleseria with the distillation apparatus. with n-heksane boiling point of 60 degrees.
3. degumming
degumming stage is the stage of separation from a solution of gum resin of triglycerides that have been distilled. degumming stage is the stage of the addition of gum resin at a temperature of 60 degrees with the addition of H3PO4.
4.transetrerification or esterified
at this stage thing to note is whether the FFA biodesel raw material for making high or low. raw materials that have low FFA can use transesterification ..
if high oil FFA esterification use.
transesterification
This stage is pereaksian triglycerides with methanol with the aid of NaOH catalyst.
5. purification
biodesel purification can be performed with the addition of water at 10% of the volume of methyl esters in the can, then separate them with water in the heat.
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