Sentences with phrase «clavipes dragline»

For example, what math was used to calculate the capability of dragline silk from an orb weaver spider that is lighter than cotton, yet ounce for ounce stronger than steel, tougher than kevlar (used in bullet - proof vests), that if the silk were 0.4 inch thick with strands 1.6 inches apart and enlarged the size of a football field, could stop a jumbo jet in flight, that is flying at an average speed of about 600 mph?

The lab is working with silk that the spider uses for draglines (dropping off into space) and the long segments of its web.

Signalling through draglines may also be a way for females to supplement their own efforts to find food, because it lures would - be gift - carrying mates.

Males were attracted to the draglines that females produced.

Researchers had already identified two genes for the class of silk known as major ampullate, which forms the superstrong dragline threads that anchor webs and are the inspiration for a major effort to make spider silk commercially (see p. 293).

Quite unexpectedly, the researchers found that females had no interest in the draglines that males produced, nor the silk that they used to wrap nuptial gifts in.

Webless wandering species such as the hunting spider (Pisaura mirabilis) often depend on so - called draglines which hang, for example, from branches.

This grotesque «mountaintop removal» method slices off summits with explosives, bulldozers, and enormous dragline excavators as tall as an eight - story building.

Ankney worked in the Montana coal industry for over 30 years, arriving in Colstrip in the early 1980s to build the massive draglines used at the mine.

Stretched enough, the protein molecules snap into different arrangements, becoming stronger and tougher, and more akin to spider dragline silks and high performance synthetics like Kevlar, Fudge said.

Spider silk proteins and methods for producing spider silk proteins Dragline silk is the toughest kind of spider silk.

STRONG START Molecular biologists at the University of Wyoming are planning to use the proteins from superstrong dragline silk to build artificial tendons and ligaments.

To begin a web, a spider anchors a strand of dragline silk — three times stronger than the Kevlar in bulletproof vests — and waits for a breeze to blow it to a second attachment point.

It has been demonstrated that silk properties (in terms of different reeling methods [32], [42], environmental conditions [8], [20], types of silk [e.g. dragline, viscid or egg sac silk][22], [24], [34]-RRB- are species - specific and lead to silk - based peptide fibrils or protein aggregates with different structural and mechanical properties.

They saw that Nephila clavipes dragline silk had almost double the final stress value compared to the same silk of Araneus gemmoides, whilst the minor ampullate silk had roughly the same final stress value [34].

Spider dragline silk was tested in a wet environment to show that moisture induces supercontraction in the threads for levels higher than 70 — 75 % of relative humidity, proving that when a thread is exposed to moisture, stresses quickly build up and tighten the thread [20].

By varying the conditions under which the spiders were kept (different reeling speeds, starvation periods), the species or the spiders inside the same species, it has been seen that dragline silk has different mechanical properties and varies on an interspecific, intraspecific and intra-individual level [23].

The parking brake dragline will slightly increase in length due to the continuous usage as it is made of metal wires which may stretch.

«A dragline.

They had not envisioned an Irish roughneck dragline operator for their golden girl.

I'm not sure I know what a dragline is.»

Heavy equipment manufacturer Caterpillar reported a 12 % drop in its first - quarter sales of dozers, diggers, draglines and drills, among other things, the company's 41st consecutive month of declining worldwide sales.

In order to keep your puppy near you when he is not crated, you can also use baby gates, close doors to bedrooms, use tethers or an indoor dragline and the like to restrict his access to your house and make it easier for you to supervise him.

-- Set up a dragline.

It's also a good idea to have the dogs wear 18 - inch draglines.

So — you now should begin to take that dog everywhere with you in the house, using a leash or dragline — that way you will see it when the dog gives any sort of signal that she needs to go, and then you can respond to it verbally and rush with her outside.

View the huge draglines and mining equipment before moving on to the export terminal of Hay Point.

Dragline, 2013 Oil, Muslin, Marble Dust, Asphalt on Canvas Brooklyn based painter Rick Lewis grew up in the Texas Gulf Coast.

Large opencast mines can cover an area of many square kilometres and use very large pieces of equipment, such as draglines, power shovels, large trucks, bucket wheel excavators and conveyors.

On the south side of the power plant, at the Liberty Mine, a giant dragline is already taking 86 - cubic - yard (65.7 - cubic - meter) bites out of the countryside.

At the mine, huge excavators called draglines clear loose earth from above black coal seams.

BHP is South Australia's biggest power user but uses more power in its Queensland coking coal mines, chiefly because of its electric «draglines» — the huge loaders that move coal and earth.

Their money funds the dragline that 14 of my friends shut down in Twilight last June that scrapes away house size chunks of earth after the mountain has been blasted.

In the first, peaks are dismantled, descending layer by layer, using explosives and draglines, and the coal harvested.

There are 31 clips in all, including shots of many mountaintop removal mine sites, undisturbed mountains, a 20 story tall dragline, and a massive coal fired power plant.

It's on the shore of Lake Michigan and was once the headquarters of Bucyrus International, which was known for constructing large shovels and dragline excavators, including Big Muskie, the world's largest mobile earth - moving machine.

Mining machine operators will use backhoes, dozers, scrapers, haul or other trucks, graders, front - end loaders, draglines, hydraulic or cable shovels, packers, mine dewatering equipment, equipment transporters, air exhausters, conveyor belts, boom bolters, grease guns, hammers, jacks, and tape measures.

The dragline operator is responsible to understand the instructions clearly and perform the task of excavating ground, loading, lifting and moving materials accordingly.

Designation: Dragline Operator Organization name: GHJ Construction Inc, Duration: July 2010 - September 2013

If you wish to take up the job of a dragline operator, provided below is a dragline operator resume example for your reference.

The dragline vehicle is installed with a bucket, suspended from a boom that excavates, lifts and moves material from one location to another.

Inspect condition of the vehicle prior to beginning work and make certain the dragline machinery functions smoothly and efficiently

Resumes in this field showcase such responsibilities as organizing and analyzing dragline production statistics to ensure that machines were being operated efficiently; producing weekly, monthly, and yearly dragline and auxiliary equipment mining plans; and managing projects involving removal and remediation of contaminated material, preventative measures for fuel spills, and the installation of safety devices on site.

Operator Data Entry Operator Data Entry Lead Operator Derrick Operator Die Casting Machine Operator Die - Press Operator Dragline Operator Drill Press Operator Drill Press Setup Operator Dump Operator Electronic Masking Operator Engine Lathe Setup Operator Engraving Press Operator Extractor Operator Extruder Helper Operator Farm Machinery Operator Folding Machine Operator Forging Machine Operator Forklift Operator Front End Loader Operator Furnace Operator Gas Compressor Operator Gas Plant Operator Grinding Mill Operator Heavy - Duty Press Operator Hoist & Winch Operator Hoisting Machine Operator Hydroelectric Station Operator Inserting Machine Operator Ion Implant Machine Operator Kick Press Operator Knitting Machine Operator Laser Beam Machine Operator Laser Beam Trim Operator Lathe Operator Laundry Operator Lithographer Operator Longshore Equipment Operator Loom Operator Machine Operator Machine Helper Operator Machine Injection Operator Machine Setup

Professional Summary Construction Equipment Operator skilled at maneuvering the heavy machinery used... Operator Forklift Operator Cherry picker operation Construction and mining tractors Dragline excavation Skid