Technology buzz..: September 2008

Wimax VS 3G. which is going to emerge?

The roll out of 3G is expected to shower in high speed data and advanced digital video streaming

With the Department of Telecommunications gearing up for simultaneous release of 3G and WiMax spectrum, analysts expect the two emerging wireless technologies to battle it out for supremacy.

WiMax or Worldwide Interoperability for Microwave Access is a telecom technology that enables wireless transmission of data. The technology is available as IEEE 802.16D (fixed) and IEEE 802.16E (mobile). It offers downloads of up to 70 Mbps as compared to the 15 Mbps that 3G provides. Mobile WiMax offers download speeds of around 20 Mbps.

In India, companies like Tata Communications Internet Services, Intel, Bharat Sanchar Nigam Ltd, Bharti Airtel and Reliance Communications are the proponents of WiMax. Most of the companies have had beta-runs of the technology.

Robodog to be the latest war flick

Modern battlefields may soon resemble something out of a science fiction flick, thanks to advances in robotics. And, the latest weapon to be unveiled is the robodog -- four-legged, petrol-powered robots.
Scientists have developed the 'BigDog', billed as "the most advanced quadruped robot on Earth", which they claim is able to carry up to four packs of military equipment on awkward terrain unsuitable for vehicles.

According to the scientists, who have developed the robodog for the United States Army, the 11-stone machine can trot along at up to four miles per hour and would even stay on its legs when it is kicked hard in the side — but, sadly, no wagging tail.

In fact, its legs are designed to work in a similar way to a real dog’s, even storing energy in shock absorbers when a foot touches the ground.

The 14-million-pound BigDog project is currently being tested across a five-mile trail used to train the United States Marine Corps, carrying the soldiers’ equipment to prove that it can cope with holes, steep slopes and water hazards.

However, the scientists are also planning to use the technology for non-military purposes.

JNTU ALL TEXT BOOKS FOR ALL BRANCHES ( I - IV YEARS) CSE, IT, ECE, EEE, EIE, ME, CHE PART -1

Hi friends i m posting all the text books of jntu syallbus for all branches and all subjects..soon i will be posting the part 2 and other subjects..check the daily updates...

8051 Microcontroller and Embedded systems (2nd Edition) By Muhammad Ali Mazidi
download link:
http://www.ziddu.com/download/2095053/EmbeddedSystemsThe2ndEditionByMuhammadAliMazidi.rar.html

8051 based projects
download link:
http://www.ziddu.com/download/2095148/8051basedprojects.rar.html

COMMUNICATION SYSTEMS
download link:
http://www.ziddu.com/download/2095300/COMMUNICATIONSYSTEMS-BRUCECARLSON.rar.html

SATELLITE COMMUNICATION ENGINEERING
download link:
http://www.ziddu.com/download/2095775/SATELLITECOMMUNICATIONENGINEERING-KOLAWOLE.rar.html

Signals And Systems 2ed - Haykin - Solutions Manual
download link:
http://www.ziddu.com/download/2095787/SignalsAndSystems2ed-Haykin-SolutionsManual.rar.html

JNTU ONLINE BITS ACD, CN, OS, FLAT, MEFA, OOAD (2008)

FLAT AND UML:
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OS, OOAD, FLAT, MEFA
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CN
http://www.ziddu.com/download/2157291/cn.pdf.html

JNTU 4-1 IT MS, ES,SPM ONLINE BITS UPDATED

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CSC
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JNTU ONLINE BITS FOR 4-1 ECE ALL SUBJECTS

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or
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JNTU 0NLINE BITS FOR 2-1,3-1AND 4-1

ADS (2008)

http://www.ziddu.com/download/2177258/ADSUNIX.rar.html

ECE 2-1
ES(60 SETS), M3(60 SETS), ECA(60 SETS, PTSP(60 SETS), PDC(60 SETS)

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ECE 3-1 ALL SUBJECTS

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3-1 CSE FLAT new html bits
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LHC first beam took 53 minutes to complete the circuit

Large Hadron Collider experiment which started its way on 10th september at CERN (European particle physics laboratory) near Geneva, Switzerland. the first time and successfully sent a beam of particles through the 27 kilometers long ring of the huge LHC. The first beam took 53 minutes to complete the circuit in this first test run.

JNTU online bits for CSE 3-1 FLAT new bits

check out JNTU online bits for CSE 3-1 FLAT new bits

jntu online bits 4-1 CSE DMDW & SPM

hi here is 4-1 cse dmdw subject online bits check the below link

http://www.ziddu.com/download/2129635/dmdw.doc.html

Click Here to Download SPM

JNTU MCA. II Sem Regular 2008 Results..announced

the results of JNTU MCA. II Semester Regular 2008 Results has been announced .the results are displayed on jntu website for access.

check out JNTU MCA. II Semester Regular 2008 Results here

Large Hadron Collider will reveal the universe secrets :stephen hawkins

Prof Hawking said the £4.4bn machine, in which scientists are about to recreate conditions just after the Big Bang, is "vital if the human race is not to stultify and eventually die out."

And he sought to ease fears that the machine could have apocalyptic effects. "The world will not come to an end when the LHC turns on," Prof Hawking said, adding: "The LHC is absolutely safe."

Scientists at the CERN research centre in Switzerland are aiming to use the machine to gain a better understanding of the birth and structure of the universe, and to fill gaps in our knowledge of physics.

source:www.telegraph.co.uk

JNTU ONLINE BITS for cse (FIRST ON TECHNODUNIYA)

DOWNLOAD LINK:

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Jntu ONLINE BITS 3-1 CSE updated on 9th sep

download link:

http://www.ziddu.com/download/2119793/3-1CSEONLINEBITSHTMLFORMAT.rar.html

Large Hadron Collider Experiments live video on internet

The world's largest massive physics experiment Large Hadron Collider Experiment is going to be conducted on 10th of september At 9.30am (1730 AEST) on Wednesday.

watch Large Hadron Collider Experiments live here from (10th of september At 9.30am (1730 AEST)

is Large Hadron Collider Experiments the end of the world?

The world's largest massive physics experiment Large Hadron Collider Experiment is going to be conducted on 10th of september At 9.30am (1730 AEST) on Wednesday.
the first protons will be injected into a 27-kilometre ring-shaped tunnel, straddling the Swiss-French border at the headquarters of the European Organisation for Nuclear Research (CERN).

large hardon collider

the cost is around 6 billion Swiss francs (.6 billion), with 9000 scientists, engineers and technicians

read more on is Large Hadron Collider Experiments the end of the world?

Scientists peel away the mystery behind gold's catalytic prowess

Gold particles measuring less than 5 nanometers in diameter possess a high level of catalytic activity when they are deposited on metal-oxide supports, Haruta learned. One nanometer (nm) is equal to one one-billionth of a meter, or about the width of five atoms.
In particular, Haruta found that gold nanoparticles are effective at catalyzing the critical conversion of toxic carbon monoxide (CO) into more benign carbon dioxide (CO₂) at room temperature and even at temperatures as low as -76 degrees C. CO oxidation is vital to firefighters and others who must enter burning buildings, and it is also critical to the protection of hydrogen fuel cells from CO contamination.

In the two decades since Haruta's discovery, scientists have sought to determine exactly how gold nanoparticles function as catalysts.

Now, researchers from Lehigh University in Bethlehem, Pa., and Cardiff University in the UK believe they have pinpointed the active species at which the critical oxidation reaction occurs when gold is supported on iron oxide.

read more on Scientists peel away the mystery behind gold's catalytic prowess

Helium Ions Replace Electrons in Novel Microscope Technology

Researchers affiliated with the Institute for NanoBioTechnology hope to gain some insight into the potentially hazardous effects of inhaled nanometals by studying their ability to access lung tissues, their potential to trigger pro-inflammatory reactions by cells that line the lung airways, and even the extent to which workers are exposed in a nanomaterials manufacturing setting.

read more on Helium Ions Replace Electrons in Novel Microscope Technology

Latest global warming report urges world to begin adapting

Global warming is having a measurable effect on Earth's climate, including agriculture, freshwater resources, and plants and animals on both sea and land. These changes are expected to intensify as temperatures continue to rise.

Those are among the conclusions of a new report from the Intergovernmental Panel on Climate Change (IPCC), a UN-sponsored group of scientists. A summary of their findings released April 6 outlines climate changes and how researchers expect them to play out as warming continues. Their impact on society, the IPCC report says, will vary depending on the amount of actual temperature increase that occurs and humanity's capacity or ability to adapt to the changes.

"Not all of these effects are negative," notes Sharon Hayes, an official with the White House Office of Science and Technology Policy, who headed the US delegation to the week-long meeting in Brussels where scientists and political delegations hammered out the summary's final wording. At least during the early part of the century, for example, crop yields in wetter parts of the mid- and high latitudes, including regions of Russia, Canada, and the US, are expected to rise.

But the report also makes clear that as temperatures rise, negative effects increase, Dr. Hayes adds. And the poorest countries, which contribute the least to global warming, are expected to face the biggest challenges in coping with it.

read more on Latest global warming report urges world to begin adapting

3-1 JNTU 3-1computer networks by tanenbaum (SOLUTIONS TO PROBLEMS)

click here to download 3-1 JNTU 3-1computer networks by tanenbaum (SOLUTIONS TO PROBLEMS)

How to score well in jntu external Exams

Just write down the side headings
under those side headings write wt ever u wan.
draw pictures if present
Write eqns if present.....no need to read every thing the ans.....only heading,picture and equations.

.
.
.tats it ur passed easily @jntu........
.
.
*Read repeated Qsns only...dnt read every thing in the all in one...

JNTU 2-1 ONLINE BITS LATEST AND UPDATED

MEFA
http://www.ziddu.com/download/2104259/mfcs.rar.html

DLD
http://www.ziddu.com/download/2104260/dld.rar.html

PS
http://www.ziddu.com/download/2104261/ps.rar.html

ADS
http://www.ziddu.com/download/2104262/ads.rar.html

JNTU 2-1 MECHANICAL ONLINE BITS PLZ CHECK THE BELOW LINKS

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mfcs:--
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ps:--
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JNTU online bits 4-1 webtechnologies

hello friends only webtechnologies bits r in available remaining subjects will be uploaded soon
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JNTU online internal exam schedule all branches

The scheduled dates for conducting of internal examinations (Online quiz and descriptive mid examinations) for B.Tech II-I, III-I, and IV-I courses for the academic year 2008-09 are as follows:

Quiz-1 and Mid-1 (Cycle-1) duration from 8th Sept’ 2008 to 15h Sept’2008
Last date for uploading the reports to the JNTU portal => 20th Sept’ 2008

Quiz-2 and Mid-2 (Cycle-2) duration from 23rd Oct’ 2008 to 1st Nov’2008
Last date for uploading the reports to the JNTU portal => 8th Nov’ 2008

Jntu online bits for 3-1

hi friends i m posting here 3-1 online bits of last year for reference...keep rocking.....all latest bits will be updated soon..

download link:
http://www.ziddu.com/download.php?uid=ZqyimZesaq%2BhluKnY6qhkZSsYKqelpWu3

How To Enable Folder Options in Windows Explorer

Malware often drops itself as a hidden file and then disables the Folder Options menu in Windows Explorer so you can't change the settings to view hidden files and folders. If you are unable to access the Tools | Folder Options in Windows Explorer, here's how to modify the registry to regain access to the Folder Options menu.

STEPS:

Click Start
Click Run
Type REGEDIT
Click OK
The Registry Editor will now open
Browse to the following key:
HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Note: HKCU stands for HKEY_CURRENT_USER
In the right pane, look for the value: NoFolderOptions
Right click NoFolderOptions and select Delete. (When prompted with "Are you sure you want to delete this value", select Yes.
Now browse to the following key:
HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
Note: HKLM stands for HKEY_LOCAL_MACHINE
In the right pane, look for the value: NoFolderOptions
Right click NoFolderOptions and select Delete. (When prompted with "Are you sure you want to delete this value", select Yes.
Close the Registry by choosing File | Exit
You should now be able to access the Folder Options menu. If not, reboot into Safe Mode and repeat the steps outlined above.

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How to remove new folder exe or regsvr exe or autorun inf virus

I want to tell you a story, two days back i got affected by this virus very badly as it eat up all my empty hard disk space of around 700 MB .

I was surprised that my most reliable friend Avast, for the first time failed me in this war against viruses but then again avg and bitdiffender also failed against it. This virus is know popularly as regsvr.exe virus, or as new folder.exe virus and most people identify this one by seeing autorun.inf file on their pen drives, But trend micro identified it as WORM_DELF.FKZ. It is spreading mostly using pen drives as the medium.

New folder.exe virus

Well, so here is the story of how i was able to kill the monster and reclaim my hard disk space.

Manual Process of removal

I prefer manual process simply because it gives me option to learn new things in the process.

So let’s start the process off reclaiming the turf that virus took over from us.

Cut The Supply Line
1. Search for autorun.inf file. It is a read only file so you will have to change it to normal by right clicking the file , selecting the properties and un-check the read only option
2. Open the file in notepad and delete everything and save the file.
3. Now change the file status back to read only mode so that the virus could not get access again.
5. Click start->run and type msconfig and click ok
6. Go to startup tab look for regsvr and uncheck the option click OK.
7. Click on Exit without Restart, cause there are still few things we need to do before we can restart the PC.
8. Now go to control panel -> scheduled tasks, and delete the At1 task listed their.
Open The Gates Of Castle
1. Click on start -> run and type gpedit.msc and click Ok.
3. If you are Windows XP Home Edition user you might not have gpedit.msc in that case download and install it from Windows XP Home Edition: gpedit.msc and then follow these steps.
4. Go to users configuration->Administrative templates->system
5. Find “prevent access to registry editing tools” and change the option to disable.
7. Once you do this you have registry access back.
Launch The Attack At Heart Of Castle
1. Click on start->run and type regedit and click ok
2. Go to edit->find and start the search for regsvr.exe,
4. Delete all the occurrence of regsvr.exe; remember to take a backup before deleting. KEEP IN MIND regsvr32.exe is not to be deleted. Delete regsvr.exe occurrences only.
5. At one ore two places you will find it after explorer.exe in theses cases only delete the regsvr.exe part and not the whole part. E.g. Shell = “Explorer.exe regsvr.exe” the just delete the regsvr.exe and leave the explorer.exe
Seek And Destroy the enemy soldiers, no one should be left behind
1. Click on start->search->for files and folders.
2. Their click all files and folders
3. Type “*.exe” as filename to search for
4. Click on ‘when was it modified ‘ option and select the specify date option
5. Type from date as 1/31/2008 and also type To date as 1/31/2008
7. Now hit search and wait for all the exe’s to show up.
8. Once search is over select all the exe files and shift+delete the files, caution must be taken so that you don’t delete the legitimate exe file that you have installed on 31^st January.
9. Also selecting lot of files together might make your computer unresponsive so delete them in small bunches.
10. Also find and delete regsvr.exe, svchost .exe( notice an extra space between the svchost and .exe)
Time For Celebrations
1. Now do a cold reboot (ie press the reboot button instead) and you are done.

I hope this information helps you win your own battle against this virus. Soon all antivirus programs will be able to automatically detect and clean this virus. Also i hope Avast finds a way to solve this issues.

As a side note i have found a little back dog( winpatrol ) that used to work perfectly on my old system. It was not their in my new PC, I have installed it again , as I want to stay ahead by forever closing the supply line of these virus. You can download it form Winpatrol website.

GRE VERBAL DATABASE (Till Sep 5th)

1. Telling

2. Testy

3. Tepid

4. Ignominy

5. Aplomb

6. Exculpate

7. Mar

8. Lazing

9. Omnipotent

10. Zealot

11. Lacerate

12. Ignite

13. Discommodious

14. Exculpate

15. Deferential

16. Obsequious

17. Hidebound

18. Discommodious

19. Loquacious

20. Antiseptic

21. Chisel

22. Admonish

23. Denounce

Analogies:

1. Lung: Respire

2. Loquacious: Talk

3. Antiseptic: Disinfect

4. Marble: Chisel

5. Admonish: Denounce

GRE DATABASE (Till Sep 4th)

1. Exonerate

2. Supercilious

3. Arrogant

4. Tepid

5. Tug

6. Gag

7. Explicit

8. Winsome

9. Byline

10. Reinforcement

11. Raving

Analogies:

1. Article: Byline

2. Reinforcement : Collapse

Argument Topic:

1. "Last year, sales of our Fierce Fighter toy airplane declined sharply, even though the toy had been a top seller for three years. Our customer surveys show that parents are now more worried about youthful violence and are concerned about better education for their children. Therefore, to maintain profits we should discontinue all our action toys and focus exclusively on a new line of educational toys. Several other toy companies have already begun marketing educational toys and report sales increases last year of 200 percent. And since the average family income is growing, sales of new Hyper-Go toys should also increase."

GRE VERBAL DATABASE (Till Sep 3rd)

1. Summit

2. Ambiguous

3. Jocund

4. Mire

5. Peripatetic

6. Rooted

7. Hush

8. Exhortation

9. Misdemeanor

10. Avowal

11. Senility

Analogies:

1. Summit: Mountain

2. Motivation: Exhortation

3. Misdemeanor: crime

4. Senility: Consciousness

Issue Topic:

1. Laws should not be rigid or fixed. Instead, they should be flexible enough to take account of various circumstances, times, and places.

2. .The character of the leaders of the society can be determined by the character of men and women of the society who chose them.

Argument Topic:

1. The following appeared in a memo from a vice president of Alta Manufacturing.

"During the past year, Alta Manufacturing had thirty percent more on-the-job accidents than nearby Panoply Industries, where the work shifts are one hour shorter than ours. Experts believe that a significant contributing factor in many on-the-job accidents is fatigue and sleep deprivation among workers. Therefore, to reduce the number of on-the-job accidents at Alta and thereby increase productivity, we should shorten each of our three work shifts by one hour so that our employees will get adequate amounts of sleep."

GRE VERBAL DATABASE (Till Sep 2nd)

1. Arid

2. Omnipotent

3. Exasperate

4. Hamper

5. Reverent

6. Fervid

Analogies:

1. Lung: Respire

2. Reverent: Sincerity

GRE VERBAL DATABASE (Till Aug 29th)

1. Mind

2. Descendent

3. Surplus

4. Munificent

5. Parsimony

6. Conciseness

7. Aphorism

8. Recalcitrant

9. Choir

10. Pariah

11. Ostracize

12. Peripatetic

13. Evoke

14. Zesty

15. Testy

16. Nonconformity

17. Diaphanous

18. Plummet

19. Subpoena

20. Succinct

21. Extraneous

Analogies:

1. Choir: Singer

2. Conciseness: Aphorism

3. Pariah: Ostracize

Issue Topic:

1. Too much emphasis is given to role models. Instead, we must think independently and make our own decisions.

GRE VERBAL DATABASE (Till Aug 28th)

1. Formidable

2. Veracious

3. Galvanize

4. Creep

5. Awe

6. Puerile

7. Barbiturate

8. Quandary

9. Delegation

10. Erudite

11. Latent

12. Saunter

13. Harangue

14. Molify

Analogies:

1. Formidable: awe

2. Saunter: walk

3. Harangue: mollify

Issue Topic:

1. Education is effective only when it is designed to meet the individual needs and interests of every Student.

GRE VERBAL DATABASE (Till Aug 27th)

1. Evoke

2. Denigrate

3. Relegate

4. Recalcitrant

5. Venerate

6. Prolong

7. Summarize

8. Merge

9. Telling

10. Quaff

11. Coagulate

12. Laconic

13. Lubrication

14. Extol

Analogies:

1. Lubrication: Friction

2. Quaff: Sip

Issue Topic:

1. To be a good leader one must have his, own principles and objective. The person who is influenced by the views and opinions of the others, can accomplish only little.

GRE VERBAL DATABASE (Till Aug 26th)

1. Diaphanous

2. Translucent

3. Prolong

4. Extrinsic

5. Strictures

6. Recalcitrant

8. Sordid

9. Archaic

10. Assiduous

11. Zealot

12. Vindictive

13. Incogitant

Analogies:

1. Incogitant: thoughtfulness

Issue Topic:

1. "Human mind is more superior than machine because afterall humans made all machine and tools."

VERBAL DATABASE (Till Aug 25th)

1.Sensitive

2.Supercilious

3.Serendipitous

4.Reel

5.Remote

6.Arcane

7.Antidote

8.Veto

9.Transience

Analogies:

1.Serendipitous: Effort

2.Antidote: Poison

3.Veto: Prohibitive

4.Analgesic: Pain

Issue Topic:

1.Students should develop skepticism rather than accepting the subjects passively.

GRE VERBAL DATABASE (Till Aug 22nd)

1. Extricate

2. Zoning

3. Decentralization

4. Antique

5. Secrete

6. Extinct

7. Disclaim

8. Arcane

9. Remote

10. Anachronism

11. Barricade

12. Malleable

Analogies:

1. Barricade: traffic

2. Malleable: shape

3. Antidote: poison

4. Carpentry: Craft

5. Door: Wall

6. Porous: membrane

QUANT DATABASE (Till Sep 4th)

1. A 6 bicylists has to be chosen from 4 adult and 4 children
Col A: How many 3 adult and 4 children teams can be formed
Col B: How many 2 adult and 2 children teams can be formed

2. An octagen was inscribed inside a circle and two lines were drawn connecting to the center from the edges of one side of the octagen. Find the angle between these two lines?

3. An enterprise has a value of 10 - 20millions. If they give shares worth 100$-1000$ to all their employees for the entire value of the company, find the number of employees?
A. 50,000
B. 55,000
C. 60,000
& so on.....

4. An isoceles triangle was given with two equal sides given as 'x' and the unequal side as 'y'.
Col A: y
Col B: 2x

5. Given the average of 7 numbers as 64. When two numbers are removed from them, the average becomes 60, find the average of the two removed numbers?

6. If x^2 - 4x = 4(x^4 + 4x - 4) then what are the maximum number of possible values of x?

7. If z is a positive integer & if [z] represents the greatest value <=z then
Col A: [x+y]
Col B: [x]+[y]

8. If 'x' & 'y' are two integers, then
Col A: 40^x*41^y
Col B: 40^x+1*41^y-1

9. A square carpet is laid on a square floor and the area of square floor is 30.64 more than the area of carpet. With the area of floor being 10% more than area of the carpet, what is the area of the carpet?
(Given question is similar to this.... but numerical values(given above) may not be exact)
A. 8
B. 9
C. 10
D. 11
E. 12

10. Col A: Standard Deviation of 10, 20, 50, 70, 90
Col B: Standard Deviation of 10, 30, 50, 80, 90.

QUANT DATABASE (Till Sep 5th)

1. Given the measurements of a rectangle as 80ft, 50ft. If the shorter side is increased by x% then the area after increase becomes 5400. What is the value of x?
A.20
B.25
C.30
D. None

2. In a polar axis co-ordinates system, if one point lie at a distance of 3 units from origin subtending an angle ‘Ѳ’ with the origin and another point is at exactly 55 degrees more than the first, find out the distance between the two points and also the angle subtended by the second ,in radians ?

3. Given two points (on exactly opposite ends of a circle) as (-3, 0) and (0, 5). Find radius of the circle?

4. If ‘A’ hits a target with a probability of 2/7 and if ‘B’ hits a same target with a probability of 7/16 then if both of them shoot, what is the probability that neither of them will hit the target?
A. 1/7
B. 1/21
& so on…

5. If a point in a particular co-ordinate system is (2, 9) and in another co-ordinate system is (-8, 81) then by how many degrees should the first co-ordinate system axis be rotated to get the send co-ordinate axis?

6. Given a container has a capacity V and a liquid is filled up to 1/3 of its capacity. Another container has capacity W and a liquid is filled up to 1/7 of its capacity. If both these are mixed and poured into another container whose capacity is X. Find out the fraction of occupation in the last container.

7.

If one feet = 3yards and painting each yard costs some xxx dollars with canvassing cost 20% extra then cost of painting & canvassing the area is?
8. If n is an integer, the number of primes in between n and n+6 is?
A. 0
B. 2
C. 6
D. 3
E. 4

9. If x > 0 then
Col A: x+(1/x^-2)
Col B: x^2+(1/x)

10. Given an equation of a straight line as x + y = 4. This line makes a right angled triangle intersecting positive x-axis and y-axis. Find out the area of the triangle?

11. Col A: (1/3)^-1
Col B: 3

12. If 1 liter paint is required for painting 16sq.mt then find the paint required for painting 64cub.mt?

13. A 16(n=4) squared box was given. All squares which are on perimeter was given, the corner 4 squares were not painted and the question is... If n>=5, then find the number of shaded squares?

14. Given two lines of the form y = ax+b and y = cx+d which intersect each other. Find y-coordinate?
(Question is similar to this)

15. The value of the expression 1/3*| y - x | (where y = x-1) is ----?

16. If 'x' & 'y' are two integers, then
Col A: 40^x*41^y
Col B: 40^x+1*41^y-1

17. If a line 'm' has points (2,1) and 'l' is the line parallel to 'm'
Col A: Slope of the line m
Col B: Slope of the line l

18. If ky + mx = 4 and the point is (2,3)
Col A: k
Col B: 1

19. If the equal side of an isosceles triangle is 30 then the unequal side can be between
A. 0 to 45
B. 0 to 60
C. 45 to 60
& so on

20. If x < 0 then (-x)(-x)/(-x)= ?
A. x
B. |x|
C. -x
D. -x^2
E. x^2

21. A Geometrical figure of hexagon with 12 equilateral triangles is given and asked to find the perimeter of the hexagon?
(Question is similar to this)

22. A car goes around a circle of radius of 14km in the first round it travels with a speed of 11km/hr in sub sequent rounds its speed increases by 11km/hr in each round how much time does the car take to cover a dist of 440km
A. 14*8/5
B. 15*14/18
C. 18*4/15
D. 4*15/18
E. 7*4/15

23. Given a line which is passing through {1/2, 1/2} & origin. Which of the following equations has same slope?
A. Y = X
& so on...

24. Another question had a series of numbers not arranged in any ascending or descending order and the question asked is to how much more is the median of the series above when compared to the mean of the above series?
(Question is similar to this)

25. Given two lines ‘L’ as y = ax + b and another line ‘M’ as y = dx + c where a=! d and b=! c and ad=! bc. Express the equation of lines in terms of a, b, c, d when the lines are intersected?

26. If t^4 = 16
Col A: t
Col B: 2

GRE QUANT DATABASE (Till Sep 3rd)

1. A person has 10 pairs of sox and each are differently colored. If a person picks one pair of sox simultaneously, what is the probability that it is a same colored pair?
A. 1/4
B. 1/5
C. 1/9
D. 1/10
E. 1/(xx)

2. If the LCM of x, y is 24 and the LCM of k, z is 30 then what is the LCM of x, y, k, z?

3. Given that a fruit vendor has 'T' fruits and he sells 150 fruits of them for $0.36. The next day the vendor wants to get the same amount of money he got the previous day, so he changes the price, What is the changed price in terms of 'T'?
(Question is similar to this)

4. If t^4 = 16 then
Col A: t
Col B: 2

5. If the angles of a triangle are in the ratio of 1:2:3 then what is the largest angle?

6. Given set A:{15,16,17,18,19} and set B: {6,7,8,9}. If set C is the sum of set A and set B elements then what are the different possible values of set C?

7. Given an equilateral traingle ABC, & 'D' is the midpoint of BC. If AD = X then what is the perimeter of the triangle in terms of x?

8. Given a line which is passing through {1/2,1/2} & origin. Which of the following equations has same slope?
A. Y = X
& so on...

9. If the volume of the cylinder 'A'(whose radius is 'R' and height is 'H') is 'K' then what is the volume of an another cylinder B whose radius & height is double the radius & height of cylinder A?
Col A: K
Col B: 4K

QUANT DATABASE (Till Sep 2nd)

1. Col A: 3^50
Col B: 2^25

2. Given a set S = {1, 2, 3, 4, 5 } & a set T = {6, 7, 8, 9, 10}. When the values in S are added with T then how many different values will be formed?

3. A 6 bicylists has to be chosen from 4 adult and 4 children
Col A: How many 3 adult and 4 children teams can be formed
Col B: How many 2 adult and 2 children teams can be formed

4. If it take 1 litre of enamel to paint 16 sq.mtrs then how much litres of enamel is required to paint 64 cubic metrs?

5. If a line M has points (2,1) and L is the line parallel to m
Col A: slope of the line m
Col B: slope of the line l

6. If a line ky+mx=4 passes through point (2,3) then
Col A: k
Col B: 1

7. If x > 0 and y > 0 then
Col A: x^2+y^2
Col B: (x+y)^2

8. What is the value of 0.000004/40000=?

9. If n+n+n+n = n+12 then what is the value of n?

GRE QUANT DATABASE (Till Aug 29th)

1. If a/b @ c = (a/b) / c then (7/3) @ 4 =?

2. Col A: 100! / 99!
Col B: (100! – 99!) / 98!

3. Given three points a, b, c. If a, b lie on the same line and if all these three points are at same distance between each other, then
A. None of the points lie on the same plane.
B. Only one point lies on the plane.
C. Two points lie on the plane.
D. More than two points lie on the plane.
E. None of the above.

4. Given a series -9, 10, -11, 12, -13. . . . . . . . . . .80
Col A: sum of first 27 numbers
Col B: -22

5. If 100 < Y
Col A: 2y
Col B: 400

6.

As in above figure a, b and c are three angles & it is given that RQ is parallel to NO and PQ is parallel to MN.
Col A: a
Col B: b+c

GRE QUANT DATABASE (Till Aug 28th)

1. If N is an odd and negative integer and it is a product of ten different integers.
Col A: no. of odd integers used in the product to get N
Col B: no. of negative integers used in the product to get N

2. Given a figure of combination of two triangles, in which first triangle contains 90, x, y degree angles and second triangle contains 90, z, w degrees. Which of the following conditions must be true?
I. x - w = z - y
II. x + y = w
III. z = 90 - w
A. I only
B. II only
C. I and III only
& so on....

3. Given a sequence -9, 10, -11, 12, -13, 14, -15..... Find the sum of first 40 integers in sequence?

4. If n > 1 then
Col A: (-1)^(4n-3)
Col B: (-1)^(4n-2)

5.

If all the seven circles are shaded like above then what is the area of unshaded region?

6. The standard deviation of the series 3, 7, 9, 13, 17 is?

7. Col A: 77!/78!
Col B: 87!/88!

8. If 2^n > 10^15n then which of the following options satisfies the condition
A. 30
B. 45
C. 60
D. 75

9. If x, y are the prime numbers greater than 10, then which of following must be even?
A. (x^2)*(y^2)
B. x^2 + x*y
C. 2*x*y + x
& so on....

10. Given a line in xy-plane with slope k = -3 & the points are (2, k), (-3, m)
Col A: k-m
Col B: -15

11. The approximate value of ((61.16)(.98)^2)/sqrt(401) is
A. 5
B. 4
C. 3
D. 2
E. 1

12. Col A: 0.9999/0.9998
Col B: 1.0002/1.0001

13. There is a junior and senior team who has taken tests. The average of junior team members who have taken tests are 88 and the average of senior team members is 92
Col A: the average of senior and junior team
Col B: 90

14. When a number is divided by 12, the remainder is 5. What is the remainder when the square of that number is divided by 8?

15. If the selling price of a product is 25% lesser than its list price and 40% greater than its cost price, then what is the list price of the product if the cost price = 30 ?

16. Last year, 1/4 of factory workers are architects. One year ago 60 workers newly joined in which 50 are architects and no one left the factory since last year and if now 1/3 of factory workers are architects then find the total number of workers?

17. When 'w' is divided by 14, the remainder is zero. If 'w' is three lesser than it value and when divided by 15, its remainder is 14. What is the value of 'w'?

18. If RST is isosceles triangle with RS = ST and P be a point on the side RT, then which of the following conditions must be true:
i) SP < ST
ii) SP < RT
iii)SP < PT

GRE QUANT DATABASE TILL AUGUST 27TH

1.

If ‘D’ is the mid point of EC and if the area of circle is 4pi, then what is the area of the triangle ABC?

2. If l2x + 49l < 13 then
Col A: x^2
Col B: 9

3.

If the above polygon has all sides equal, then
Col A: AD
Col B: AF+FE

4. Given a line in xy-plane with slope k =-1/2 then
Col A: x-intercept
Col B: y-intercept

5. If the median of a seven number sequence is 2n+2 then find the Arithmetic mean of that sequence?

6. Col A: 100!/99!
Col B: (100! - 99!) / 98!

7. If x – y = 1 then
Col A: x^2 – y^2
Col B: 0

8.

As the shown in the figure, the diameter of the inner circle is 6ft and the difference in the radii of inner & outer circle is 1ft. Find the area of the shaded region?

9. Given that the room numbers of a floor are numbered from 101 to 550. If particular rooms are selected of numbers that start with 1, 2, 3 and lasts with 4, 5, 6 then in how many such ways the rooms can be selected?
(Given question is similar to this)

10.

Given area of the shaded region of the circle (whose centre is ‘o’) as some (XXX) value and asked to find the radius of the smaller circle?

11. A parallelogram diagram is given whose length is 9 and breath is 6 and the angle between the breadth and length is given as ‘x’ degrees (x degrees is greater than 90).
Col A: Area of the parallelogram
Col B: 50

12. Given 'k' and 'm' as two numbers whose LCM is 'km' & 'm' and 'n' are two numbers whose LCM is 'mn'. If k, m, n > 0 then
Col A: LCM of 'k' and 'n'
Col B: 'kn'

13. Given that the average salary of n employees is 32000, average salary of another different group of n-1 employees is 33000
Col A: The average salary of 2n-1 employees
Col B: 32500

14. A toy manufacturer company manufactures 20,000 toys and exports ¾ and 1/10 and donates some (xxx) value for charitable trust. Find the number of toys left in the company?

& Few more previous database questions……

GRE QUANT DATABASE TILL AUG 26TH

1. A sequence is given from -8. . . . . .184 this sequence is got by adding 3 to the previous
Col A: n
Col B: 65

2. If 150 < y< 300 then
Col A: 2y
Col B: 400

3. If (63)^n is divisible by 3^16 then
Col A: n
Col B: 7

4. What is the value of {1 / (2 - sqrt3)} = ??

5.The approximate value of ((61.16)(.98)^2)/sqrt(401) is
A. 5
B. 4
C. 3
D. 2
E. 1

6. If N = (-2)^x, where x is a negative integer and if 'm' is a number which is the difference between the highest possible value of N and the least possible value of N?
Col A: m
Col B: 3/4

7. Given a series -9, 10, -11, 12, -13. . . . . . . . . . .80
Col A: sum of first 27 numbers
Col B: -22

8. There are 35 females in a club having an average age of 'f', and there are 45 males in a club having an average age of 'm'. If 'f' is greater than 'm' then
Col A: Average age of all 80 members
Col B: (f+m)/2

9. (Root(28)/root(112) ) – (root(7)/root(112))
A. 1/16
B. 4/3
C. 1/4

10. There are rooms from 101 to 550 inclusive in which the starting rooms are numbered from 1, 2, 3 and the waiting rooms are numbered from 4,5,6. What is the probability that the rooms 4, 5, 6 will be choosed randomly?

11. If 1 < a < 2, 3 < b < 4, 5 < c < 6
Col A: ab/c
Col B: 1/6

12. If 2^n > 10^15n then which of the following options satisfies the condition
A. 30
B. 45
C. 60
D. 75

13. In the pack of plates, 1/3 of plates are damaged , 2/3 are cracked and 1/3 of them are damaged and cracked and 80 are not hampered then what is the number of total plates?

14. Given two triangles, one triangle inserted in another as above. The vertices of big triangle is ABC & smaller triangle i.e. the inner triangle is PQR such that AB//PQ and AC//PR. Given angle A is y degrees, angle R is z degrees & exterior angle of A is x degrees.
Col A: x
Col B: y+z

15. If the mean of 10, 20, x is equal to the median of 10, 20, x then what is the value of x?

16. If A1, A2, A3, A4 and A5 belongs to a series such that An= n{[(-1)^n] -1}, then what will be the difference of the largest and the smallest term?
A. 4
B. 6
C. 8
D. 10
E. 12

& Few previous database Questions.........

GRE QUANT DATABASE AUGUST 25TH

1.

If AB = BC, CI = IH & DE = EF then
Col A: Area of Rectangle GDEF
Col B: Sum of areas of Rectangle ABCD & CIHE

2. What is the closest integer to sqrt(171)?

3. If an = n { (-1)^n – 1)}, and a1, a2, a3, a4, a5 are the terms then what is the difference between greatest & least term?

4. No. of Members Least weight Range
20 members 100 29
21members 130 35
When two groups are joined, what is the median weight of the group?

5. Col A: 0.9999/0.9998
Col B: 1.0002/1.0001

6. If (2x+7) < src="http://www.drrajusgre.com/aug_img18.JPG">
If AC = x, then find the perimeter of the figure?

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Phelps resembles dolphin

Michael Phelps uses the kick to its maximum advantage by staying underwater for at least 13 meters.

Michael Phelps swam his way into history at Beijing but just how did he do it?

An Indian-American scientist is trying to explain what makes Phelps the best in the world by comparing his style to that of the of ultimate swimmers - Dolphins.

Rajat Mittal's investigation into the swimming technique of 50 Olympic-level American swimmers began 5-years ago. Mittal found that among the group Michael Phelps was able to use his body, especially his feet to kick like a dolphin at the start of the races and every turn that Dolphin kick, Mittal says makes Phelps the greatest.

"It's been noted by us and lot of analysts that looked at the Beijing Olympics, in many of the races Phelps went into the first turn not in the lead but when he came out of the first turn doing the Dolphin kick he was almost always either in the lead or he had gained the lead. He had gone from 7th to 2nd place, said Mittal, who is a mechanical and aerospace engineering professor in George Washington University.

Mittal also found that Phelps body dynamics gives him an extra advantage. Mittal says that Phelps with a longer torso and shorter legs is able to create smooth wave-like motion throughout his body and increase speed just like a Dolphin's movement. But the ultimate advntage is the 23-year-old's massive size-14 feet.

"The 14-size foot is the ultimate paddle. Swimmers that wear flippers can beat the ones without flippers. Michael comes with natural flipper, that is gives him tremendous advantage in creating propulsion," said Mittal.

Research also shows that Phelps uses the kick to its maximum advantage by staying underwater for at least 13 meters, while others swimmers surface by the 7th or 10th meter mark. Phelps powerful lungs hold out longer under water, eliminating the resistance that would result if he surfaced early.

"He can actually swim nicely for 15 meters without running out of breath. Because the last thing you want to do is you swim for 15 meters and then when you come out you're so depleted of oxygen that you're not able to swim at all and that would defeat the purpose of the Dolphin kick," added Mittal.

Rajat Mittal who is now working with US Olympic coaches hopes that the Dolphin kick will become an essential part of the athletes' training program.

Google's new browser chrome

Google has revealed plans today to release an innovative new open source web browser called Chrome that includes some extraordinary and unprecedented features. Google says that its new browser will move the web forward and provide a stronger platform for emerging web standards.

The browser is built on top of Apple's WebKit HTML rendering engine, a lightweight renderer that is known for its clean code base, good performance, and excellent standards-compliance. WebKit's versatility and the ease with which it can be embedded in applications has led to its adoption in numerous contexts, including Google's Android web browser. Alongside WebKit, Google will be using its own JavaScript virtual machine called V8, which was designed for high performance and has some compelling features.

Security is also clearly an area where Google plans to push forward web innovation. Chrome has a sophisticated sandboxing system that is designed to protect against malware by restricting access to the underlying system functionality. Google will also be leveraging its malware blacklists (the same ones it uses to protect users from clicking through harmful search results) to warn users when they attempt to visit a site that is known to be infected.

There are many other nice features in Chrome too, including a rich autocompletion, tightly integrated Google Gears, a site-specific browser framework like Prism, and a private browsing function called Incognito that resembles Microsoft's recently announced InPrivate functionality.

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