ISRO set to launch rocket with indigenous cryogenic
engine:
Chennai, Aug 17, 2013 (IANS):
In a month marked by key advances in
indigenously-developed technology, India's space agency will also test its
mettle with a crucial rocket, powered by a cryogenic engine built in the
country, slated to blast off Monday.
The countdown for the flight of the heavy geosynchronous satellite launch vehicle (GSLV) is set to begin Sunday evening, Indian space agency officials said.
According to Indian Space Research Organisation (ISRO), the 29 hour countdown would start at 11.50 a.m. Sunday and the rocket is expected to blast off at 4.50 p.m. Monday from India's rocket port Sriharikota in Andhra Pradesh, around 80 km from here.
The countdown for the flight of the heavy geosynchronous satellite launch vehicle (GSLV) is set to begin Sunday evening, Indian space agency officials said.
According to Indian Space Research Organisation (ISRO), the 29 hour countdown would start at 11.50 a.m. Sunday and the rocket is expected to blast off at 4.50 p.m. Monday from India's rocket port Sriharikota in Andhra Pradesh, around 80 km from here.
This month has already seen key
advances.
As the country celebrated its 67th Independence Day, the month saw activation of the indigenously built small reactor to power submarine INS Arihant, the launch of the indigenously-built aircraft carrier INS Vikrant while a unit of Kudankulam Nuclear Power Project (KNPP) is expected to be connected to the grid month end.
One event that created a shadow was the loss of Indian naval submarine INS Sindhurakshak.
Now eyes are on the ISRO to see whether the GSLV, powered by its own crucial cryogenic engine would successfully deliver its baby-communication satellite - the 1,982 kg GSAT-14 - into outer space.
"After two GSLV failures, ISRO has to prove itself at the earliest possible. There is always a pressure on that count," a senior ISRO official, who did not want to be named, told IANS.
This will be the first mission of GSLV during the last three years after two such rockets failed in 2010.
One of the GSLV rockets flew with Indian cryogenic engine and the other one with a Russian engine.
The GSLV is a three stage/engine rocket. The first stage is fired with solid fuel, the second is the liquid fuel and the third is the cryogenic engine.
The successful flight of this rocket is crucial for India as it will be the first step towards building rockets that can carry heavier payloads, up to four tons.
According to ISRO, several design changes have been incorporated in the Monday's rocket for a safe flight.
Design changes were made in the lower shroud/cover that protect the cryogenic engine during the atmospheric flight; wire tunnel of the cryogenic stage to withstand larger forces during the flight; and the revised aerodynamic characterisation of the entire rocket.
Others included video imaging of lower shroud movement during various flight phases; fuel booster in cryogenic engine; and ignition sequence of the cryogenic engine.
ISRO said indigenisation of many critical systems including liquid hydrogen propellant acquisition system (to prevent possibility of outside contamination) was achieved.
It is going to be a tense 17 minutes for the ISRO scientists Monday after the 49.13 metre tall rocket weighing 414.75 ton blasts off at 4.50 p.m. till the GSLV rocket safely delivers GSAT-14 to augment the Indian transponder - receivers and transmitters of signals - capacity.
ISRO is planning to launch an upgraded version of GSLV Mark III rocket next year with a dummy payload. The design payload capacity of GSLV Mark III is four tons.
Meanwhile an ISRO official said the fuelling of the three stage/engine GSLV rocket's four strap-on motors and the second stage with liquid fuel will be completed by Aug 19 morning while the first stage core engine is powered by solid fuel.
The process of fuelling the cryogenic engine will begin around 10 hours prior to the launch.
How to detect malware on systems apart from usual anti-virus softwares:
Washington, Aug. 16 : Despite having anti-virus software installed on the computer systems, if a new virus is released before the antivirus software detects it, the system can be infected.
However, researchers have found a way for virus detection that acts as a third layer on top of scanning for known viruses and heuristic scanning.
The new approach employs a data mining algorithm to identify malicious code on a system and the anomaly of behaviour patterns detected is predominantly based on the rate at which various operating system functions are being 'called'.
The idea is to incorporate built-in defences in the anti-virus software against viruses and other computer malware for which they have no prior knowledge.
These defences usually respond to unusual activity that resembles the way viruses behave once they have infected a system. This so-called heuristic approach combined with regularly updated antivirus software can protect the system against known viruses and even zero-day viruses.
The research team of Mamoun Alazab (ANU) and Sitalakshmi Venkatraman (NMIT) explained that securing computer systems against new diverse malware is becoming harder since it requires a continuing improvement in the detection engines.
They said that what is most important is to expand the knowledgebase for security research through anomaly detection by applying innovative pattern recognition techniques with appropriate machine learning algorithms to detect unknown malicious behaviour.
--ANI -
Researcher controls colleague’s motions in 1st human brain-to-brain interface:
The pea-sized brains, that have been “alive” for almost a year, were also used to model microcephaly, a human genetic disorder in which brain size is dramatically reduced.
Scientists at the Austrian Academy of Sciences grew the complex human brain tissue in a three-dimensional culture system by using pluripotent stem cells that developed into cerebral organoids or ‘mini brains’ that consist of several discrete brain regions. Researchers can now study aspects of human brain that are difficult to model in animals.
As the country celebrated its 67th Independence Day, the month saw activation of the indigenously built small reactor to power submarine INS Arihant, the launch of the indigenously-built aircraft carrier INS Vikrant while a unit of Kudankulam Nuclear Power Project (KNPP) is expected to be connected to the grid month end.
One event that created a shadow was the loss of Indian naval submarine INS Sindhurakshak.
Now eyes are on the ISRO to see whether the GSLV, powered by its own crucial cryogenic engine would successfully deliver its baby-communication satellite - the 1,982 kg GSAT-14 - into outer space.
"After two GSLV failures, ISRO has to prove itself at the earliest possible. There is always a pressure on that count," a senior ISRO official, who did not want to be named, told IANS.
This will be the first mission of GSLV during the last three years after two such rockets failed in 2010.
One of the GSLV rockets flew with Indian cryogenic engine and the other one with a Russian engine.
The GSLV is a three stage/engine rocket. The first stage is fired with solid fuel, the second is the liquid fuel and the third is the cryogenic engine.
The successful flight of this rocket is crucial for India as it will be the first step towards building rockets that can carry heavier payloads, up to four tons.
According to ISRO, several design changes have been incorporated in the Monday's rocket for a safe flight.
Design changes were made in the lower shroud/cover that protect the cryogenic engine during the atmospheric flight; wire tunnel of the cryogenic stage to withstand larger forces during the flight; and the revised aerodynamic characterisation of the entire rocket.
Others included video imaging of lower shroud movement during various flight phases; fuel booster in cryogenic engine; and ignition sequence of the cryogenic engine.
ISRO said indigenisation of many critical systems including liquid hydrogen propellant acquisition system (to prevent possibility of outside contamination) was achieved.
It is going to be a tense 17 minutes for the ISRO scientists Monday after the 49.13 metre tall rocket weighing 414.75 ton blasts off at 4.50 p.m. till the GSLV rocket safely delivers GSAT-14 to augment the Indian transponder - receivers and transmitters of signals - capacity.
ISRO is planning to launch an upgraded version of GSLV Mark III rocket next year with a dummy payload. The design payload capacity of GSLV Mark III is four tons.
Meanwhile an ISRO official said the fuelling of the three stage/engine GSLV rocket's four strap-on motors and the second stage with liquid fuel will be completed by Aug 19 morning while the first stage core engine is powered by solid fuel.
The process of fuelling the cryogenic engine will begin around 10 hours prior to the launch.
How to detect malware on systems apart from usual anti-virus softwares
Washington, Aug. 16 : Despite having anti-virus
software installed on the computer systems, if a new virus is released
before the antivirus software detects it, the system can be infected.
However, researchers have found a way for virus
detection that acts as a third layer on top of scanning for known
viruses and heuristic scanning.
The new approach employs a data mining algorithm to identify malicious code on a system and the anomaly of behaviour patterns detected is predominantly based on the rate at which various operating system functions are being 'called'.
The idea is to incorporate built-in defences in the anti-virus software against viruses and other computer malware for which they have no prior knowledge.
These defences usually respond to unusual activity that resembles the way viruses behave once they have infected a system. This so-called heuristic approach combined with regularly updated antivirus software can protect the system against known viruses and even zero-day viruses.
The research team of Mamoun Alazab (ANU) and Sitalakshmi Venkatraman (NMIT) explained that securing computer systems against new diverse malware is becoming harder since it requires a continuing improvement in the detection engines.
They said that what is most important is to expand the knowledgebase for security research through anomaly detection by applying innovative pattern recognition techniques with appropriate machine learning algorithms to detect unknown malicious behaviour.
--ANI - See more at:
http://www.newkerala.com/news/story/55211/how-to-detect-malware-on-systems-apart-from-usual-anti-virus-softwares.html#sthash.H4C5rpw9.dpufThe new approach employs a data mining algorithm to identify malicious code on a system and the anomaly of behaviour patterns detected is predominantly based on the rate at which various operating system functions are being 'called'.
The idea is to incorporate built-in defences in the anti-virus software against viruses and other computer malware for which they have no prior knowledge.
These defences usually respond to unusual activity that resembles the way viruses behave once they have infected a system. This so-called heuristic approach combined with regularly updated antivirus software can protect the system against known viruses and even zero-day viruses.
The research team of Mamoun Alazab (ANU) and Sitalakshmi Venkatraman (NMIT) explained that securing computer systems against new diverse malware is becoming harder since it requires a continuing improvement in the detection engines.
They said that what is most important is to expand the knowledgebase for security research through anomaly detection by applying innovative pattern recognition techniques with appropriate machine learning algorithms to detect unknown malicious behaviour.
Washington, Aug. 16 : Despite having anti-virus software installed on the computer systems, if a new virus is released before the antivirus software detects it, the system can be infected.
However, researchers have found a way for virus detection that acts as a third layer on top of scanning for known viruses and heuristic scanning.
The new approach employs a data mining algorithm to identify malicious code on a system and the anomaly of behaviour patterns detected is predominantly based on the rate at which various operating system functions are being 'called'.
The idea is to incorporate built-in defences in the anti-virus software against viruses and other computer malware for which they have no prior knowledge.
These defences usually respond to unusual activity that resembles the way viruses behave once they have infected a system. This so-called heuristic approach combined with regularly updated antivirus software can protect the system against known viruses and even zero-day viruses.
The research team of Mamoun Alazab (ANU) and Sitalakshmi Venkatraman (NMIT) explained that securing computer systems against new diverse malware is becoming harder since it requires a continuing improvement in the detection engines.
They said that what is most important is to expand the knowledgebase for security research through anomaly detection by applying innovative pattern recognition techniques with appropriate machine learning algorithms to detect unknown malicious behaviour.
--ANI -
Researcher controls colleague’s motions in 1st human brain-to-brain interface:
London: Scientists have used stem cells to grow miniature human brains in a lab, an advance that can provide new insights into neurological disorders.
The pea-sized brains, that have been “alive” for almost a year, were also used to model microcephaly, a human genetic disorder in which brain size is dramatically reduced.
Scientists at the Austrian Academy of Sciences grew the complex human brain tissue in a three-dimensional culture system by using pluripotent stem cells that developed into cerebral organoids or ‘mini brains’ that consist of several discrete brain regions. Researchers can now study aspects of human brain that are difficult to model in animals.
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