Monday, 19 September 2016

Direct translate from the camera

World is growing fast with mobile technology. With the new app we can translate direct from the camera and no need to use other tools and wait till its feedback. It will be the perfect tools to act as a global village concept and will reduce depend on the translator in the future.
Messaging and voice call service Skype recently released a live translation tool, Japan is trialing a live translation megaphone to use during the 2020 Olympics, and Google's Translate app translates street signs and real-time conversations. It looks like technology may finally be breaking down the final barrier in worldwide communication.

Sunday, 18 September 2016

New Defense innovation Laser weapon prototype.

New Defense innovation initiative as Laser weapon prototype.

Great Briton is going to be use a new innovative laser technology in defense field. A hi-tech laser weapon that could shoot down enemy missiles mid-flight is to be developed for the British military. The futuristic "energy" cannon is set to be created under a £30m deal being finalized by the Ministry of Defense (MoD).It forms the first part of a program aimed at showing how pioneering technology, once confined to the pages of science fiction, can be exploited by the military in future.

As defense Secretary Michael Fallon has today announced that the Ministry of Defense (MOD) is finalizing a £30 million deal for a new laser demonstrator which could transform weapons technology of the future and the development of the UK’s first laser weapon.It is just one of the examples of ground-breaking technology that the MOD will support with its new £800 million Innovation Fund.

Life-saving vital signs monitors, cutting edge anti-missile systems, tiny insect-inspired surveillance drones, quantum gravitational detectors, advanced protective materials, and airborne threat-targeting laser weapons. These are some of the other kinds of ground-breaking technology which the government’s drive for innovation will support from pitch to procurement.

Defence Secretary Michael Fallon said:

The UK has long enjoyed a reputation as a world leader in innovation. Our new Innovation Initiative will transform Defense culture to ensure that we stay ahead of the curve. With a rising Defense budget, and a £178 billion equipment plan, our commitment to collaboration will deliver a safer and more prosperous Britain

The Laser Directed Energy Weapon (LDEW) Capability Demonstrator set to be built by MBDA UK Ltd will lead to a one-off prototype, delivered by 2019, that shows how this technology can be exploited in the future. MBDA UK Ltd will assess how the system can acquire and track targets at range and in varying weather conditions over land and water, with sufficient precision to enable safe and effective engagement.

A novel laser weapon could complement or replace existing weapons systems with the potential for significant benefits. It could be employed to protect our maritime and land forces; for example, ships from threat missiles or soldiers from enemy mortars.

The Secretary of State revealed the news as he introduced the Ministry of Defense’s new Innovation initiative to allies, industry partners, small and medium enterprises (SMEs), academics, and investors to set out how the UK will stay at the cutting edge of international security and defense.

The Innovation Initiative will transform the Ministry of Defense ’s creative culture by strengthening and streamlining collaboration with both new and established partners.

The MOD’s commitment to collaboration with UK industry is further demonstrated by the Brite Cloud decoy system. Designed and manufactured in Bedfordshire and Scotland, BriteCloud uses powerful radar emissions to disrupt systems within radar-guided air-to-air and surface-to-air missiles. A pilot can launch the compact unit, which is packed with advanced electronics, to confuse an attacking missile, drawing it away to a point where it no longer poses a threat.

The MOD is also in the process of introducing a new vital signs monitor, deploy-able on land, air, and sea. Similar to a tablet, Tempus Pro is capable of transmitting medical data in real time to medical facilities and treatment teams, giving them a better understanding of a patient’s condition and potentially saving lives. The MOD’s investment in these innovative solutions demonstrates how the Government’s £178 billion equipment plan, supported by a rising Defense budget, is ensuring our Armed Forces have the most effective and innovative capability available. The Innovation Initiative aims to strengthen the Defense partnerships which make such projects possible, keeping the UK safe and secure in a complex world.

The commitment to innovation on a global stage will be on show in October at exercise Unmanned Warrior. More than forty companies from across the world will test their unmanned vehicles in a complex operational environment off the UK coast.

The Defense Secretary toured the innovation exhibition and took part in a Q&A session with industry, alongside the Minister for Defense Procurement, Harriet Baldwin, the Minister for Security, Ben Wallace, and the Vice-Chief of the Defense Staff, General Sir Gordon Messenger. Among the exhibits were so-called “Disruptive Capability” projects: technology which displaces established solutions and drives defense forward.

Video : http://www.dailymail.co.uk/sciencetech/article-3470246/US-Army-laser-weapons-2023-research-bosses-say-killer-technology-close.html

Tuesday, 29 September 2015

Utlizing wind power in sea shore.

World is talking about climate change in recent years, With the population increase time to increase the power/ electrical production.
Lot of Nations looking for renewable energies like Solar and wind to reduce carbon omission.
There is lot of inventions to use beyond land area to fix energy sources.
We must appreciate the current researches, Policies from University of Delaware faculty from the College of Earth, Ocean, and Environment (CEOE) on utilization of Offshore wind power.
Presently we are limited to Land area by installing wind towers.Which is giving problem for birds and Living things,flies near to the tower.
Offshore wind towers has tremendous potential to help the Nations to reduce its dependence on fossil fuels by displacing coal and natural gas, offshore wind will reduce health costs and contribute to improved.
Need to focus this mechanical construction seriously to deliver our promise to the nature, that we keep it green and safe for our future generation.

displacing coal and natural gas, offshore wind will reduce health costs and contribute to improved air quality and reduced climatic impacts

Read more at: http://phys.org/news/2015-09-professors-fallen-offshore-power.html#jCp

Offshore wind power has tremendous potential to help the U.S. reduce its dependence on fossil fuels. By displacing coal and natural gas, offshore wind will reduce health costs and contribute to improved air quality and reduced climatic impacts.

Read more at: http://phys.org/news/2015-09-professors-fallen-offshore-power.html#jCp

University of Delaware faculty from the College of Earth, Ocean, and Environment (CEOE), the College of Engineering and the Alfred Lerner School of Business and Economics say that the U.S. has fallen behind in offshore wind power.

Read more at: http://phys.org/news/2015-09-professors-fallen-offshore-power.html#jCp

Steel Fiber flooring for road and Pavement

Steel Fiber In Flooring provides excellent resistance to reduce breaks in hardened concrete , along with highest possible resistance to endure heavy loads , both dynamic or static . If you choose to utilize steel fiber concrete flooring , you may opt for to use a ‘joint-less floor’ . Joint-less flooring are floorings having very small joints , offering gaps without joints as large as forty or fifty meter span broad .

Steel fiber quantity will differ tremendously upon the project intended use , along with the kinds of mesh getting replaced . Typical dosages are actually in the range between 15-30kg/m3 to 40-50kg/m3 for joint-less floorings .Steel fibers will certainly improve to break resistance of the concrete , they usually can also be useful to replace or supplement structural reinforcement . Nevertheless this only can be achieved through a structural engineer or possibly the design offered by our designing expert .

Where you should Use Steel Fiber In Flooring :

Common applications for steel fiber concrete flooring are found on
• Parking lots
• Industrial Floorings
• Playgrounds
• Airport runways
• Maintenance hangars
• Port pavements
• Workshops.

Advantages of Steel Fiber In Flooring :

• Enhanced load bearing capacity of concrete
• Lowering of concrete slab thick-ness
• Load capacity is not decreased by concrete cracks
• Improved durability
• Lower maintenance costs
• Enhanced flexural properties
• Decreased absorption of fluid , chemicals , and etc .
• Can be used on fast track schedule
• Easier positioning of joints
• Decreased site labor for controlling steel reinforcement
• Decreased project cost
• Enhanced impact as well as abrasion resistance
• Even distribution of fibers all through the concrete
• Stronger surface with lesser bleed holes
• Cost savings will be increased for heavier crack control systems

Visit http://precisiondrawell.com/

Wednesday, 12 June 2013

WELDING PROCEDURE IN UNDER WATER

􀂾 INTRODUCTION

Welding is interesting part of construction life. It is a wast subject and lot of opportunities to learn. Under water welding is the part of interest subject. The below simplified procedure can help you to get an Idea.

The fact that electric arc could operate was known for over a 100 years. The first ever underwater welding was carried out by British Admiralty – Dockyard for sealing leaking ship rivets below the water line.

Underwater welding is an important tool for underwater fabrication works. In 1946, special waterproof electrodes were developed in Holland by ‘Van der Willingen’. In recent years the number of offshore structures including oil drilling rigs, pipelines, platforms are being installed significantly. Some of these structures will experience failures of its elements during normal usage and during unpredicted occurrences like storms, collisions. Any repair method will require the use of underwater welding.

􀂾 CLASSIFICATION

Underwater welding can be classified as

1) Wet Welding

2) Dry Welding

In wet welding the welding is performed underwater, directly exposed to the wet environment. In dry welding, a dry chamber is created near the area to be welded and the welder does the job by staying inside the chamber.

WET WELDING

Wet Welding indicates that welding is performed underwater, directly exposed to the wet environment. A special electrode is used and welding is carried out manually just as one does in open air welding. The increased freedom of movement makes wet welding the most effective, efficient and economical method. Welding power supply is located on the surface with connection to the diver/welder via cables and hoses.

In wet welding MMA (manual metal arc welding) is used.

Power Supply used : DC

Polarity : -ve polarity

When DC is used with +ve polarity, electrolysis will take place and cause rapid deterioration of any metallic components in the electrode holder. For wet welding AC is not used on account of electrical safety and difficulty in maintaining an arc underwater.

Electrode Holder

Electrode

Knife Switch

Power

Supply

work

The power source should be a direct current machine rated at 300 or 400 amperes. Motor generator welding machines are most often used for underwater welding in the wet. The welding machine frame must be grounded to the ship. The welding circuit must include a positive type of switch, usually a knife switch operated on the surface and commanded by the welder-diver. The knife switch in the electrode circuit must be capable of breaking the full welding current and is used for safety reasons. The welding power should be connected to the electrode holder only during welding.

Direct current with electrode negative (straight polarity) is used. Special welding electrode holders with extra insulation against the water are used. The underwater welding electrode holder utilizes a twist type head for gripping the electrode. It accommodates two sizes of electrodes.

The electrode types used conform to AWS E6013 classification. The electrodes must be waterproofed. All connections must be thoroughly insulated so that the water cannot come in contact with the metal parts. If the insulation does leak, seawater will come in contact with the metal conductor and part of the current will leak away and will not be available at the arc. In addition, there will be rapid deterioration of the copper cable at the point of the leak.

Hyperbaric Welding (dry welding)

Hyperbaric welding is carried out in chamber sealed around the structure o be welded. The chamber is filled with a gas (commonly helium containing 0.5 bar of oxygen) at the prevailing pressure. The habitat is sealed onto the pipeline and filled with a breathable mixture of helium and oxygen, at or slightly above the ambient pressure at which the welding is to take place. This method produces high-quality weld joints that meet X-ray and code requirements. The gas tungsten arc welding process is employed for this process. The area under the floor of the Habitat is open to water. Thus the welding is done in the dry but at the hydrostatic pressure of the sea water surrounding the Habitat.

􀂾 RISKS INVOLVED

There is a risk to the welder/diver of electric shock. Precautions include achieving adequate electrical insulation of the welding equipment, shutting off the electricity supply immediately the arc is extinguished, and limiting the open-circuit voltage of MMA (SMA) welding sets. Secondly, hydrogen and oxygen are produced by the arc in wet welding.

Precautions must be taken to avoid the build-up of pockets of gas, which are potentially explosive. The other main area of risk is to the life or health of the welder/diver from nitrogen introduced into the blood steam during exposure to air at increased pressure. Precautions include the provision of an emergency air or gas supply, stand-by divers, and decompression chambers to avoid nitrogen narcosis following rapid surfacing after saturation diving.

For the structures being welded by wet underwater welding, inspection following welding may be more difficult than for welds deposited in air. Assuring the integrity of such underwater welds may be more difficult, and there is a risk that defects may remain undetected.

􀂾 Advantages of Dry Welding

1) Welder/Diver Safety – Welding is performed in a chamber, immune to ocean currents and marine animals. The warm, dry habitat is well illuminated and has its own environmental control system (ECS).

2) Good Quality Welds – This method has ability to produce welds of quality comparable to open air welds because water is no longer present to quench the weld and H2 level is much lower than wet welds.

3) Surface Monitoring – Joint preparation, pipe alignment, NDT inspection, etc. are monitored visually.

4) Non-Destructive Testing (NDT) – NDT is also facilitated by the dry habitat environment.

􀂾 Disadvantages of Dry Welding

1) The habitat welding requires large quantities of complex equipment and much support equipment on the surface. The chamber is extremely complex.

2) Cost of habitat welding is extremely high and increases with depth. Work depth has an effect on habitat welding. At greater depths, the arc constricts and corresponding higher voltages are required. The process is costly – a $ 80000 charge for a single weld job. One cannot use the same chamber for another job, if it is a different one.

􀂾 Advantages of Wet Welding

Wet underwater MMA welding has now been widely used for many years in the repair of offshore platforms. The benefits of wet welding are: -

1) The versatility and low cost of wet welding makes this method highly desirable.

2) Other benefits include the speed. With which the operation is carried out.

3) It is less costly compared to dry welding.

4) The welder can reach portions of offshore structures that could not be welded using other methods.

5) No enclosures are needed and no time is lost building. Readily available standard welding machine and equipments are used. The equipment needed for mobilization of a wet welded job is minimal.

􀂾 Disadvantages of Wet Welding

Although wet welding is widely used for underwater fabrication works, it suffers from the following drawbacks: -

1) There is rapid quenching of the weld metal by the surrounding water. Although quenching increases the tensile strength of the weld, it decreases the ductility and impact strength of the weldment and increases porosity and hardness.

2) Hydrogen Embrittlement – Large amount of hydrogen is present in the weld region, resulting from the dissociation of the water vapour in the arc region. The H2 dissolves in the Heat Affected Zone (HAZ) and the weld metal, which causes Embrittlement, cracks and microscopic fissures. Cracks can grow and may result in catastrophic failure of the structure.

3) Another disadvantage is poor visibility. The welder some times is not able to weld properly.

􀂾 Principle of operation of Wet Welding

The process of underwater wet welding takes in the following manner:

The work to be welded is connected to one side of an electric circuit, and a metal electrode to the other side. These two parts of the circuit are brought together, and then separated slightly. The electric current jumps the gap and causes a sustained spark (arc), which melts the bare metal, forming a weld pool. At the same time, the tip of electrode melts, and metal droplets are projected into the weld pool. During this operation, the flux covering the electrode melts to provide a shielding gas, which is used to stabilize the arc column and shield the transfer metal. The arc burns in a cavity formed inside the flux covering, which is designed to burn slower than the metal barrel of the electrode.

􀂾 Developments in Under Water Welding

Wet welding has been used as an underwater welding technique for a long time and is still being used. With recent acceleration in the construction of offshore structures underwater welding has assumed increased importance. This has led to the development of alternative welding methods like friction welding, explosive welding, and stud welding. Sufficient literature is not available of these processes.

􀂾 Scope for further developments

Wet MMA is still being used for underwater repairs, but the quality of wet welds is poor and are prone to hydrogen cracking. Dry Hyperbaric welds are better in quality than wet welds. Present trend is towards automation. THOR – 1 (TIG Hyperbaric Orbital Robot) is developed where diver performs pipefitting, installs the trac and orbital head on the pipe and the rest process is automated.

Developments of diverless Hyperbaric welding system is an even greater challenge calling for annexe developments like pipe preparation and aligning, automatic electrode and wire reel changing functions, using a robot arm installed. This is in testing stage in deep waters. Explosive and friction welding are also to be tested in deep waters.

Sunday, 26 February 2012

QAP FOR CS TANK FABRICATION & ERECTION

COMPANY NAME						REPORT NO:
		QUALITY ASSURANCE PLAN FOR				DATE:
		TANKS.				SHEET : 1 OF 1
JOB NO :			CLIENT :
PROJECT :			CONTRACTOR :
ACCEPTED. STD - APPLICABLE SPECS.
Sr. No.	Inspection Activity	Reference	Characteristic	Acceptance	Inspection Agency
		Document	verified	criteria	CONTRACTOR	CLIENT	REMARKS.
1	RECEIPT INSPECTION
i	Visual Inspection	Inspection Report	Damage	No Defects	W	R
ii	Document Review	Material T.C.	Correlation of	Specs.	W	R
			Product with T.C.
2	WELDING PRE-REQUISITES
i	Inspection of Consumbles (as applicable)	ASME Sec.-II, part-c	Correlation with T.C.	Mfr. Std.	W	R
ii	WPS/PQR	ASME Sec.-IX	Tensile/Bend	ASME Sec.-IX	W	W
iii	WPQT (Welder Qualification)	ASME Sec.-IX	RT	ASME Sec.-IX	W	W

3	TANK FABRICATION/INSTALLATION
i	Set ups	WPS	Joint Configuration	WPS	W	R
ii	Welding Control	Electrode Specs.	Backing Time/Temp.	WPS	W	R
		Specs.	Preheat/Interpass	Specs.
iii	Visual (Welds)	As per Code/Spec.	Weld Profile	Specs.	W	R
iv	PWHT	AS Per Drg.			w	R
v	HARDNESS	AS Per Drg.			w	R
vi	UT(as applicable)	As per drg.	Weld Defects	Conf. to Specs.	w	w
ix	NOZZLE RAINFORCEMENTT PAD	Pneumatic test.	Weld Defects	ASME Sec.-IX	w	w
x	CELL TO BOTTOM	Chalk & oil test	Weld Defects	ASME Sec.-IX	w	w
xi	BOTTOM PLATE	Vaccum	Weld Defects	ASME Sec.-IX	w	w
xi	HYDRO TEST	WATER	Weld Defects		w	w
4	PAINTING .
I	SURFACE CLEANING	ASME Sec,viii&b31.3	Surface Finish		w	R
II	PRIMER APPLICATION	ASME Sec,viii&b31.3	painting thick.as for drg.		W	R
III	FINAL PAINT	ASME Sec,viii&b31.3	painting thick.as for drg.		W	W
IV	FINAL DOCUMENTATION	AS -Built Drawings	Report		W	W




Legend H=Hold		W=Witness		R=Review
	CONTRACTOR ENGINEER		CLIENT ENGINEER

Signature	-		Signature

Name	-		Name