Air pollution and treatment

Clean air is beneficial to human life, but instead are exposed to air pollution is very bad for the health and lives of living beings, especially human life. Air pollution occurs as the negative effects of development in developing countries, industries in developed countries, nature activities, and so forth. Broadly divided into particulate air pollution and gas pollution.

Particulate matter (particles) is the air pollution that can be jointly materials / other forms of pollution, all kinds of particulates:

a. Aerosol: the spread of fine particles of solids or liquids in the gas or air.
b. Mist (fog): a form of aerosol droplets in the air.
c. Smoke (smoke): a mixture of solids and liquids blown grains floating in the air.
d. Dust (dust): aerosol in the form of granules suspended in the air due to wind gusts.
e. Fume: aerosols originating from the metal vapor condensation.
f. Plume: smoke coming out of an industrial chimney.
g. Smoge: a mixture of smoke and fog.

Here are all kinds of emissions:

a. Sulfur Dioxide (SO2): produced by coal, fuel oil containing sulfur, pertanah waste incineration and industrial processes. Impact: irritant effect on the airways, causing cough and shortness of breath.

b. Hydrogen Sulfide (H2S): results from the crater of the mountain is still active and can cause a bad odor, can damage the sense of smell (olfactory nervous)

c. Nitrogen Oxide (N2O), nitrogen monoxide (NO), Nitrogen Dioxide (NO2): these gases come from various types of combustion, motor vehicle exhaust gases, explosives, fertilizer plants. Effect: disrupt the respiratory system and respiratory system weaken the lungs and airway so that the lungs vulnerable to infection.

d. Ammonia (NH3): derived from industrial processes. Ammonia raises unpleasant smell stung. And can cause respiratory disorders, bronchitis, impair sense of smell.

e. Carbon Dioxide (CO2), Carbon Monoxide (CO), Hydrocarbons: all combustion produces gases, as well as industrial processes. Gas is a systematic effect, for poisoning the body by binding to the vital hemoglobin oxygenation of body tissues as a result when the brain is deprived of oxygen can cause death. In small amounts can cause thought disorder, muscle movement, heart disorders.

If emissions were excluded from an activity does not comply with emission standards, necessary to control the emissions that.

Various emission control devices include:

a. Air Filter: useful for filtering particles that come out in order not to participate serobong released into the environment.

b. Cyclone sediment: sediment particles participating in the emissions with the use of centrifugal force of particles intentionally blown through the tube wall edge cyclone.

c. Gravity settling system: long-form space dirty air flowed slowly so that the particles will settle because of gravity.

d. Electrostatic precipitating: used for particle separation under 5μm. This tool is perfect for cleaning the dirty air in large volumes, the tool is in the form of a cylindrical tube in the middle, given an electrified wire, dirty air and negative ions will be attracted to the walls of the tube, clean air will pass.

e. Wet filter: to separate the non-particle pollution, media separators used are absorbent solution.

f. Specific control / filter sulfur oxides, nitroge

Vibrations and Waves

I. VIBRATION

1. understanding Vibration
Vibration is a back and forth motion or periodic motion around a particular point periodically.
Periodic motion is a vibration or movement made objects back and forth through a certain path back to each position and velocity after a certain time interval. Deviation is the distance between the position of objects that vibrate at a time until it returns to the position of the imbalance.
Amplitude is the maximum deviation performed on vibration events.
Period is the time it takes to make one complete vibration.
Frequency is the number of full vibration to do in one second.

II. understanding waves
The waves are vibrations that propagate. For example, when we move the end of the rope up and down, the vibration that we do will propagate, so the waves will form a rope. Based on the need for the medium, the waves can be divided into two electromagnetic waves and mechanical waves.
Electromagnetic waves are waves that do not require a medium / intermediate. For example, light is a wave. Sunlight can get to the earth, but at the top of the atmosphere is a vacuum / vacuum, no medium to propagate Whatever. It was proved that light does not need a medium to propagate, so that the light belongs to the electromagnetic waves. While the mechanical wave is a wave that requires a medium / intermediate to propagate. An example is a rope wave, sound waves, sea waves, and so on.

business opportunities

Opportunity is definitely an opportunity that can be obtained with one or more relying on existing potential and take advantage of opportunities with both what business opportunities, who can we take with alacrity.
There are some strategies or tips in finding business ideas with you can use and develop are:
· Google, so anyone who does not know about Google's champion? Find who think about approaching you with the ability and willingness, but sometimes something as difficult when it is done it will feel light and interesting. So use Google as a search tool yga business opportunities are all around you.
· Main to Bookstore, are now very much at all the books that covered the various business opportunity information, very much. You can choose according to taste, and all can be an inspiration to you with finding the business opportunity idea.
· Mass Media such as newspapers, television and radio. Of the mass media is a lot of business opportunities ideas that reviews.
· Experience someone. Yes experience of someone who succeeded and who failed in business with ideas you can use to develop your new business venture or
At its heart is the only one who understands the meaning of the terms of business opportunities that can think kriatif and risk-taking that is that with the use of rapid response and efforts peluang.Peluang that have been taken will certainly have consequences for the decision maker. if successful, can be said to have benefited, but if that fails then it's part of the risks that must be faced. Nevertheless, it can be a very valuable experience

ATTITUDES AND BEHAVIOR ANO ENTREPRENEURS

ATTITUDES AND BEHAVIOR ANO ENTREPRENEURS
a. The attitude of entrepreneurs
1. Being able to think and be creative and innovative
2. Able to work diligently, carefully and productively
3. Able to work based on sound business ethics
4. Being able to work with a spirit of independence
5. Ability to solve problems and make decisions and take risks sisitematis
b. behavior of entrepreneurs
1) Have the confidence
a) True to its founding
b) Do not depend on others
c) a good personality
d) Optimistic on job
2) task-oriented and results
a) Thirst for achievement
b) Oriented earnings / results
c) Perseverance and persistence
d) Have a strong impetus, motivation and hard work
3) the risk taker
a) Energetic and initiative
b) Ability to take risks
c) Like the challenge
4) Leadership
a) Acting as the leader behavior
b) to respond to suggestions and criticisms
c) Can get along with others
5) originality
a) Innovative, creative and flexible
b) Solutions can and know various things
c) Having many sources of capability
6) oriented to the future
a) Had a view to the future
b) Optimistic view the future
               Besides the need to have the attitude and behavior of the above, an entrepreneur is also required to have the skills to support the success.
        The skills are as follows:
1. basic skills
a. Having a mental attitude and high spiritual
b. Having a winning personality
c. clever initiative
d. Can coordinate activities
2. special skills
1. Skills concepts (conceptual skills): conducting skills based on the concept that made ​​overall
2. Technical skills (technical skills): skills to do certain techniques in managing the business
3. Human skills: the skills to work with others, subordinates, and fellow entrepreneurs

chemical reaction

Electrical energy in electronic equipment was obtained from the results of the chemical reactions that take place in the form of spontaneous redox reactions. In a redox reaction occurs eletron transfer or removal of an element to another. Electron flow shows the flow of electricity.

In a battery or batteries are used Seang, a chemical reaction takes place that produces an electric current. The opposite process is the use of electrical energy to produce a chemical reaction. For example in the metal plating and shock the batteries or battery.

Electrochemical cell divided by 2 over reaction, ie voltaic cells and electrolysis cells. The fundamental difference is only between the two as follows:

Tues Volta

The chemical reactions that take place are spontaneous and produces an electric current. Cathode is the positive pole and the anode is the negative pole, an example of using batteries and the batteries.

electrolysis cell

An electric current causes the course of a chemical reaction. Cathode is the negative pole, while anatode is the positive pole. Example: gilding, metal pemurnia in mining, and peyetruman battery.

Okk so simple little discussion about the electrochemical cell, I hope this simple article can provide information that would benefit us all.

Characteristics of Living Things

Characteristics of Living ThingsWhy rock called inanimate creature, while the creature is called the tree of life? Do you remember that only living things that have the characteristics of life. The characteristics of life is breathing, moving, eating, remove the waste, grow, reproduce, and adapt to stimuli sensitive.● BreathingThe main characteristic of living beings are said to breathe. When breathing beings inhale oxygen (O2) and exhale carbon dioxide (CO2) emissions. Oxygen is necessary for the oxidation of food substances that produce energy and carbon dioxide. Useful energy to run the activities of life.Oxidation reaction as follows:Substance food + oxygen -> energy + carbon dioxide + water vapor.● MoveThere are two kinds of motion are active motion and passive motion. Active motion is a motion to adjourn such as legs, wings and fins. Passive motion as indicated by the plant. Plants can not move, but the move in part of his body.For example, the motion of leaves furl, facing rod motion light, motion roots approaching spring bloom and motion.● Sensitive to stimuliLiving things are sensitive to changes around them. The tool environment recognition in humans and animals in the form of the senses. Indra sensitive to stimuli. Stimuli can be either light, sound, smell, taste or touch. Given the sensitive sensory stimuli such, humans and animals have the ability to see, hear, smell, taste and touch sense / feeling.Plants do not have the senses, but is sensitive to stimuli. For example, plant leaves menguncupkan shy daughter to the touch and stem growth toward sunlight.● Eat
Food is needed by living things as a source of energy, for growth and replace the damaged cells. Green plants obtain food by producing their own. Green plants as producers cultivate inorganic substances into organic matter through photosynthesis.Photosynthesis is the process of making food by green plants with the help of light.Plants not berhijau leaves, animals and humans can not make their own food. They use food from the photosynthesis of green plants and other sources of animals and nature.● Removing the remaining substances
breatheIn the process of absorption of food, it becomes waste materials are substances that are not absorbed by the body. These substances are called biological oxidation of waste materials, such as water and carbon dioksida.Berdasarkan body activity and results, expense substances distinguished above the rest: excretion, respiration, defecation.• Excretion, is spending the rest of the substances carried by the skin and kidneys. The skin will secrete substances called residual sweat because of the sweat glands under the skin. The kidneys filter blood and will secrete substances called residual urine.• Respiration, is spending the rest of CO2 as a substance released during respiration through the nose.• defecation, is spending the rest of the digestion of food substances in the form of stool (feces) through the anus.● GrowingLiving things undergo growth and development. The growth includes changes in body size, the wide, height and weight. The development is the change into adulthood.● Developing BiakLiving things reproduce to produce offspring. How the proliferation of different living things. Animals breed among others by giving birth, spawn, spawn-delivery, budding, fragmentation or splitting. Plants reproduce naturally and artificially.Breeding naturally in plants is by seeds (mating) and the unmarried, for example divide, spores, shoots, tubers, and roots geragih stay. Perkembangbikan artificial plants, such as cuttings, grafting, duck and tissue culture.● AdaptLiving beings are able to adapt to the environment. Various adaptations of living things is a morphological adaptation, adaptive behavior, and physiological adaptation.Morphology Adaptation is the adjustment to the environment associated with the shape of the body or organ. Examples on frogs and ducks are swimming in selapu legs to swim.Adaptation is the adjustment of behavior to the environment in the form of behavior. Example: animals migrate to other places that many food sources.Adaptation is a physiological adaptation to the environment in the form of behavior. Example: sweating during hot weather.Of the characteristics mentioned above there are differences between the characteristics of life owned animals / humans and plants, among other things:Animal / Human1.Bergerak: Exercising moving.2.Cara obtain food: Can not make their own food (heterotrophic). Material-eaten in the form of organic matter.3.Pertumbuhan: Only to a certain agePlant1.Bergerak: Unable to move themselves.2.Cara obtain food: It can make its own food (autotrophs), materials needed to make the food in the form of inorganic substances3.Pertumbuhan:. Grows continuously until death.