Wednesday, March 21, 2012

Dust Storm hits India Gujarat Ahmedabad - Helth Effect


METD WEATHER
Akshay Deoras
Severe Weather Forecaster

THE 500TH POST OF METD WEATHER!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!





The Sandstorm also hit Jamnagar,Gujarat. Mr.Sagar Kinikar sends METD WEATHER the above photos which clearly show the suspended dust particles! The location of the photos are around Irwin Hospital,Jamnagar!



Flight taking off from Dubai airport as viewed yesterday
Courtesy- Gulf News


*** DUST STORM CONFIRMED IN GUJARAT,RAJASTHAN,NEW DELHI,PUNJAB,HARYANA EVEN IN SRINAGAR,INDIA


*** MANY AREAS IN NORTH INDIA WITNESSED BLOWING SAND IN THE AFTERNOON HOURS


After targeting Gulf countries, the dust storm entered today in India after impacting Pakistan yesterday.
Wide weather reports and observations from Rajkot,Ahmedabad,Jaipur,New Delhi,Amritsar,Ludhiana,Srinagar confirm conditions like " Widespread Dust" and "Blowing Sand" today. The visibility also dropped below 1km however no disruptions in air traffic were observed today

Conditions now-
Right now, I can't provide any satellite imagery as its night period in Asia which inhibits the Visibile spectrum. Nevertheless, check the wonderful photos sent by Mr. Sagar Kinikar from Jamnagar,Gujarat at the top

Gujarat continues to get BLOWING SAND as of 1030PM IST.VISIBILITY IS AROUND 1KM ON AVERAGE. 


EXTREME NORTHERN-WESTERN GUJARAT,SINDH REGION IS GETTING FOG DUE TO THE DUST


Above- MODIS image shows yellow areas in Sindh,North-Western Gujarat which are fog due to dust. 


*** WIDESPREAD DUST CONTINUES IN SINDH AREA
THE INTENSITY OF THE DUST HAS REDUCED JUST SOMETIME AGO BUT CONDITIONS ARE STILL UNFAVORABLE FOR SINDH AREA. 


*** BLOWING SAND CONTINUES IN RAJASTHAN
JAIPUR STATION CONDITIONS ARE CLEARLY INDICATING LOW DRIFTING DUST PRESENT AS ON THR NIGHT TODAY. 


*** MILD DUSTY WEATHER CONTINUING IN PUNJAB,HARYANA NOW
-----


FORECAST (VALID 12HRS TILL 0730GMT,20TH MARCH 2012)


AS OF EVENING 20TH MARCH, WIDESPREAD DUST PLUMES PERSISTS IN THE NORTH ARABIAN SEA AND SAUDI ARABIA. 
** THE SHAMAL WINDS ARE NOW EXPECTED TO RELAX NOW OVER GULF COUNTRIES PARTICULARLY SAUDI ARABIA,OMAN AS THE LOW PRESSURE HAS MOVED TOWARDS SINDH

alanlysis chart 


Above image from Kuwait Weather Dept. shows the L over Sindh


What it means?


It means that conditions will further improve for Gulf Countries,Oman. Since the prolonged effect of a Shamal dust storm remains for around 3-4 days, mild visibility problems and suspended particles of dust shall continue till +12hrs from the post and declining on 21st March


There will be a reduction in the volume of dust arriving in Sindh from now onwards as less winds will blow from Saudi Arabia. However dust from Iran and vicinity will continue to effect on 21st March also. Suspended dust particles will persists.


People are requested to take care- 


For Gujarat,Rajasthan and North India, conditions will improve on 21st March with minor amount of suspended dust particles. 


Thus PEOPLE IN THE AREAS ARE REQUESTED TO TAKE THE BELOW PRECAUTIONS WHICH ARE STANDARD


DUST STORM SAFETY------------------


Exposure and health effects
  • The most common symptoms experienced during a dust storm are irritation to the eyes and upper airways.
  • People who may be most vulnerable are:
  • infants and young children
  • the elderly
  • people with respiratory conditions, such as asthma, bronchitis and emphysema
  • people with heart disease.
  • For these people, exposure to a dust storm may:
  • trigger allergic reactions and asthma attacks
  • cause serious breathing-related problems
  • contribute to cardiovascular or heart disease
  • contribute to reduced life span.
  • Prolonged exposure to airborne dust can lead to chronic breathing and lung problems, and possibly heart disease.
Health precautions
  • The following precautions can help you protect yourself and minimise the adverse effects of a dust storm:
  • avoid outdoor activity. If you must go outside spend as little time outside as possible
  • avoid vigorous exercise, especially if you have asthma or a breathing-related condition
  • stay indoors, with windows and doors closed
  • stay in air-conditioned premises, if possible and ensure regular maintenance of air conditioner filters.
If you are an asthmatic or have a respiratory condition and you develop symptoms such as shortness of breath, coughing, wheezing or chest pain, follow your prescribed treatment plan.
If symptoms do not settle, seek medical advice.

Dust storms and safety
Visibility deteriorates very quickly during a dust storm. If you are on the road and poor visibility is impairing your ability to see ahead, drive slowly. Be prepared to pull off the road if visibility deteriorates to less than 100 metres.
If your car is air-conditioned, reduce the amount of dust entering your car by switching the air intake to ‘recirculate’.

Dust storms and water tanks
To minimise the amount of dust entering your rainwater tank install a first-flush diverter.
For further information regarding private drinking water supplies,
contact the Environmental Health Unit of the Department of Health on 1300 761 874
refer to the Rainwater tanks booklet

Further information
If you or anyone in your family is experiencing symptoms that may be due to a dust storm, seek medical advice from your local doctor.
For further information and advice, contact the Environmental Health section of your local council.

WHAT TO DO DURING A DUST STORM-

Outrun the storm. If you see a dust storm from some distance, and you are in a vehicleor have access to one, you may be able to outrun it or detour around it. Some dust storms can travel at more than 75 miles per hour, but they frequently travel much slower. Trying to outrun a storm, however, is not advisable if you have to put yourself at risk by traveling at high speeds. If the storm is catching up with you, it's best to stop and prepare for it. Once consumed by the storm, your visibility can potentially be reduced to zero in a matter of seconds.

Pull over. If you're in transit and visibility drops to less than 300 feet, pull off the road (exit the freeway if possible), set your parking brake, turn off your headlights, and make sure brake lights and turn signals are also off. In many cases, if your exterior lights are on, other drivers will use the taillights of the person in front of them as a guide to help navigate the road ahead of them. If you are pulled off the road and are sitting there with your lights on, unbelievably, someone might think they can follow you and run right off the road or even collide with you! Turning your headlights off while stationed off the road, will reduce the possibility of a rear-end collision. If you are unable to safely pull off the road, keep your headlights on, turn on your hazard lights, slow down, and proceed with caution, sounding your horn periodically. Use the highway's centerline to guide you if you can't see in front of you. Pull over at the nearest safe spot.

Take cover and stay put. Do not attempt to move about in a blinding storm, as you will not be able to see potential hazards in your path.

Source: Link



AddThis Social Bookmark Button

Monday, February 27, 2012

MQ3 Gas sensor - Arduino Code - Connection Diagram - Pin Detials


    1.   MQ3 Gas Sensor
This is an alcohol named MQ-3, which detects ethanol in the air. It is one of the straightforward gas sensors so it works almost the same way with other gas sensors. it is used as part of the breathalyzers or breath testers for the detection of ethanol in the human breath.
 
 

2. How it looks like:
Basically, it has 6pins, the cover and the body. Even though it has 6 pins, you can use only 4 of them. Two of them are for the heating system, which I call H and the other 2 are for connecting power and ground, which I called A and B.
 

If you look at the inside of the sensor, you will find the little tube. Basically, this tube is a heating system that is made of aluminum oxide and tin dioxide and inside of it there are heater coils, which practically produce the heat. And you can also find 6 pins. 2 pins that I called Pin H are connected to the heater coils and the other ones are connected to the tube.

 
4. How it works:
How does it work? The core system is the cube. As you can see in this cross-sectional view, basically, it is an Alumina tube cover by SnO2, which is tin dioxide. And between them there is an Aurum electrode, the black one. And also you can see how the wires are connected. So, why do we need them? Basically, the alumina tube and the coils are the heating system, the yellow, brown parts and the coils in the picture.



5. Working Process :
If the coil is heated up,


SnO2 ceramics will become the semi - conductor, so there are more movable electrons, which means that it is ready to make more current flow.



Then, when the alcohol molecules in the air meet the electrode that is between alumina and tin dioxide, ethanol burns into acetic acid then more current is produced. So the more alcohol molecules there are, the more current we will get. Because of this current change, we get the different values from the sensor.




6. Microcontroller Connections
Here is the schematic. It is pretty simple. First, you can use 5v. And as you can see one of H pins goes to the power and the other one is connected to the ground. And the pin A is connected between the power and the pin H and the pin B is goes to the microcontroller. Also between the ground and the Arduino, you need the resistor. Before you connect the resistor if you use the pot, you can tune the resistor for getting more accurate values. In the datasheet they say you can used 100k om to 470k om.








7. Typical Behavior
If you blow, it will react. Depending on the environment, it gives you little bit of different values. But in my case, it gives me 200 as the lowest value and 1000 as the highest value. And when it detects the alcohol in the air, actually it is pretty sensitive, the value gets higher very quickly but you have to wait for about 1 to 5 minutes to reset it. So that means getting values is fast but resetting is so slow. And the sensitivity of this sensor is affected by time span. When I used an old sensor, the range of value was smaller than the new one's.


8. Arduino Code Sample and Demo

Here is the sample codes for the arduino and processing.
int gasPin = 0;
int value = 0;
void setup() {
Serial.begin(9600);
pinMode(gasPin,INPUT);
}
void loop() {
value = analogRead(0)/2;
Serial.print("Alcohol:");
Serial.println(value);
delay(100);
}


Wednesday, February 1, 2012

What Causes Eye Flickering?


Eye flickering is a very disturbing phenomenon and may develop just out of the blue. We begin to wonder, what causes eye flickering? The annoying part about a flicker in the eye is it’s uncontrollability. It might stay for minutes, days, weeks or months and there is a reason to wonder when it would stop?

The flickering of the eye in medical lingo is called as ocular myokymia.

What Causes Eye Flickering:

Eye flickering or eye twitching is quiet common amongst everyone.

Usually, the bottom eye lid is the one that is involved in twitching, but quiet often the top eye lid may also begin to twitch. This flickering or twitching can be very annoying.
It has been observed fatigue is the main culprit responsible for eye flickering. Eye flickering can be associated to muscle contractions of the eye lid and it is important that the causes behind this phenomenon be found out.
Eye flickering or eye twitching cause a contraction in the eye muscles and the reasons for this are:

Stress:

Every person is known to face a certain amount of stress in his/her life. Eye flickering is a sign of stress and the stress can directly be related to eye strain related disorders. So it is important to relieve yourselves of stress to get rid of a flickering eye.

Tiredness:

Improper sleep, insomnia or lack of sleep often cause twitching. It is important that you grab enough sleep.

Allergies:

When troubled by allergies, eyes start to itch, swell and let water out. Upon rubbing to eases the irritation, eyes release a substance called histamine into the lid tissues causing the eye to twitch. using antihistamine drops or tablets can help in such a case(doctor’s advice is necessary).

Caffeine/Alcohol:

Excessive intake of hot beverages like tea and coffee and alcoholic drinks can lead to eye twitching. it is worth a try cutting down your caffeine and alcohol intake.

Dry Eyes:

People suffering from dry eye syndrome may show signs of eye twitching. It is important to see a doctor and proper medication for treating dry eyes would also help stop twitching.

Nutritional Imbalances:

Not entirely known, but a lack of Magnesium may cause eye twitching. If you are known to suffer from nutritional deficiency and you experience eye flicker, it is suggestible to see your doctor.

Most common eye twitching problems are a direct descendant of either one or mix of the above problems and it is not a serious condition to worry about. But, the problem associated with eye twitching is it’s treatment. There is no possible treatment except to find out the underlying cause and treat the cause.

There are also certain neurological conditions that can cause severe eye twitching. But, these are very rare in occurrence.

What causes eye flickering, a combination of health and lifestyle problems.


AddThis Social Bookmark Button

Tuesday, January 24, 2012

Kaunsa Friend Kitna Zaroori Hotaa Hai? -- Har ek friend zaruri hota he..

1. bhukkad friend 



2. tubelight friend 



3. chipkoo friend 



4. kanjoos friend 



5. F1 friend



6. status update friend 



7. beep friend 



8. dhinchak friend 



9. vasooli friend 



10. sharing friend 



11. activist friend



12. LOL friend



13. fan friend 



14. party friend 



15. lazy friend 



16. filmy friend 



17. pakau friend 



18. subtitle friend



19. proxy friend



20. curious friend



21. music friend



22. despo friend


AddThis Social Bookmark Button

Monday, January 23, 2012

How Gyroscopes Work



AddThis Social Bookmark Button

Thursday, January 19, 2012

Ae Maalik Tere Bande Hum



AddThis Social Bookmark Button

Tuesday, January 17, 2012

3D mapping on INDIA GATE

AddThis Social Bookmark Button

...




Arshad Pathan


Counter: