In a paper published today in Science, Christopher J. Clark, Damian Elias, and Richard Prum explain this unusual method of sound production for the first time: «We show that these sounds are produced
by air flowing past a feather, causing it to aeroelastically flutter and generate flutter - induced sound.
This seems like a waste of electricity (and thus fuel) when cruising at 60 - 75 mph, where the air flow from the fan is going to be dwarfed
by air flow from the vehicle's motion.
Our sleep in Yamba consisted of choosing between either the feeling of suffocation
by no air flow in the van with all the windows closed, or giving the bugs a free for all while we were sleeping.
Mushroom spores are spread
by air flow and many species of mushroom have a unique way of helping mother nature: they create their own little micro-breezes through evaporative cooling to help their spores move about.
Not exact matches
Important factors that could cause actual results to differ materially from those reflected in such forward - looking statements and that should be considered in evaluating our outlook include, but are not limited to, the following: 1) our ability to continue to grow our business and execute our growth strategy, including the timing, execution, and profitability of new and maturing programs; 2) our ability to perform our obligations under our new and maturing commercial, business aircraft, and military development programs, and the related recurring production; 3) our ability to accurately estimate and manage performance, cost, and revenue under our contracts, including our ability to achieve certain cost reductions with respect to the B787 program; 4) margin pressures and the potential for additional forward losses on new and maturing programs; 5) our ability to accommodate, and the cost of accommodating, announced increases in the build rates of certain aircraft; 6) the effect on aircraft demand and build rates of changing customer preferences for business aircraft, including the effect of global economic conditions on the business aircraft market and expanding conflicts or political unrest in the Middle East or Asia; 7) customer cancellations or deferrals as a result of global economic uncertainty or otherwise; 8) the effect of economic conditions in the industries and markets in which we operate in the U.S. and globally and any changes therein, including fluctuations in foreign currency exchange rates; 9) the success and timely execution of key milestones such as the receipt of necessary regulatory approvals, including our ability to obtain in a timely fashion any required regulatory or other third party approvals for the consummation of our announced acquisition of Asco, and customer adherence to their announced schedules; 10) our ability to successfully negotiate, or re-negotiate, future pricing under our supply agreements with Boeing and our other customers; 11) our ability to enter into profitable supply arrangements with additional customers; 12) the ability of all parties to satisfy their performance requirements under existing supply contracts with our two major customers, Boeing and Airbus, and other customers, and the risk of nonpayment
by such customers; 13) any adverse impact on Boeing's and Airbus» production of aircraft resulting from cancellations, deferrals, or reduced orders
by their customers or from labor disputes, domestic or international hostilities, or acts of terrorism; 14) any adverse impact on the demand for
air travel or our operations from the outbreak of diseases or epidemic or pandemic outbreaks; 15) our ability to avoid or recover from cyber-based or other security attacks, information technology failures, or other disruptions; 16) returns on pension plan assets and the impact of future discount rate changes on pension obligations; 17) our ability to borrow additional funds or refinance debt, including our ability to obtain the debt to finance the purchase price for our announced acquisition of Asco on favorable terms or at all; 18) competition from commercial aerospace original equipment manufacturers and other aerostructures suppliers; 19) the effect of governmental laws, such as U.S. export control laws and U.S. and foreign anti-bribery laws such as the Foreign Corrupt Practices Act and the United Kingdom Bribery Act, and environmental laws and agency regulations, both in the U.S. and abroad; 20) the effect of changes in tax law, such as the effect of The Tax Cuts and Jobs Act (the «TCJA») that was enacted on December 22, 2017, and changes to the interpretations of or guidance related thereto, and the Company's ability to accurately calculate and estimate the effect of such changes; 21) any reduction in our credit ratings; 22) our dependence on our suppliers, as well as the cost and availability of raw materials and purchased components; 23) our ability to recruit and retain a critical mass of highly - skilled employees and our relationships with the unions representing many of our employees; 24) spending
by the U.S. and other governments on defense; 25) the possibility that our cash
flows and our credit facility may not be adequate for our additional capital needs or for payment of interest on, and principal of, our indebtedness; 26) our exposure under our revolving credit facility to higher interest payments should interest rates increase substantially; 27) the effectiveness of any interest rate hedging programs; 28) the effectiveness of our internal control over financial reporting; 29) the outcome or impact of ongoing or future litigation, claims, and regulatory actions; 30) exposure to potential product liability and warranty claims; 31) our ability to effectively assess, manage and integrate acquisitions that we pursue, including our ability to successfully integrate the Asco business and generate synergies and other cost savings; 32) our ability to consummate our announced acquisition of Asco in a timely matter while avoiding any unexpected costs, charges, expenses, adverse changes to business relationships and other business disruptions for ourselves and Asco as a result of the acquisition; 33) our ability to continue selling certain receivables through our supplier financing program; 34) the risks of doing business internationally, including fluctuations in foreign current exchange rates, impositions of tariffs or embargoes, compliance with foreign laws, and domestic and foreign government policies; and 35) our ability to complete the proposed accelerated stock repurchase plan, among other things.
Continue your green transition
by opening the windows to increase
air flow.
The heated application process delivers in two ways —
by preparing clients» skin and keeping them dry with a gentle
flow of warm
air, and
by infusing heat directly into the tanning spray.
Also, morality is not external (if byexternal that you mean something that you can know is right or wrong has to be determined
by a larger body or set of policies created
by someone else many years ago to be official), and morality does not necessarily
flow from religion (plenty of Catholic priests, Islamic Imams, Protestant preachers wave their hands high in the
air in the afternoon, at praise time, and when the lights go down they crawl on their bellies, and hands and knees like snakes and dogs).
Other industries have dealt with longer supply chains
by balancing transportation
flows between different transport modes, often using
air freight to move high - value, short - shelf - life products to market.
The auger is controlled
by electronics that determine when more pellets and
air flow are needed to hold the desired temperature.
The Serenity Star pillow is filled with an extended polymer called Fusion Foss, that is known to allow
air to
flow, and this pillow is guaranteed
by the manufacturer never to flatten or become lumpy.
Midwife: Until the cord comes up and is actually hit
by the
air, that's when the cord constricts and the blood
flow is stopped to the baby.
Active
flow mechanism also avoids nipple confusion and
air gulped
by baby while feeding.
Manufactured
by ReliaBrand, this plastic baby bottle has a vent at the bottom of the bottle for consistent
air flow and reducing
air intake.
Proven Airlock Protection keeps tubing dry
by preventing
air flow between the expressed milk and pump tubing while pumping.
● Keeps tubing dry
by preventing
air flow between expressed milk and pump tubing while pumping.
Backflow Protection Filter • Helps protect breast milk and baby from bacteria, mold and viruses while pumping.1 • Keeps tubing dry
by preventing
air flow between expressed milk and pump tubing while pumping.
This mode
by Schwinn has eight
air flow vents, to keep your child cool as they wear it, a dial for easy size adjustment, and extended coverage for the ultimate level of safety.
With this doctor designed bottle, negative
flow is virtually eliminated
by the crafty
air - vent addition.
It does not only bring safety and comfort but also helps prevent the suffocation
by making sure the
air flow has been kept as it is.
Under legislation proposed
by Rory Lancman, officers caught using a chokehold — defined as wrapping the hands or arms around someone's neck and compressing their windpipe to restrict the
flow of
air or squeezing their carotid artery to interrupt the
flow of blood — would face misdemeanor charges.
MAVEN arrived at Mars in Sept. 2014 on a mission to investigate a planetary mystery: Billions of years ago, Mars was blanketed
by layer of
air massive enough to warm the planet and allow liquid water to
flow on its surface.
Every day, numerous cars and trucks are wearing on Norway's almost one hundred thousand kilometers of road: Asphalt wear on the tires, the tires wear on the asphalt, exhaust
flows out from the vehicles and all is shrouded
by road dust, until a rainfall cleanses the
air, leaving all the dust and particles in the ditch.
Three storms that raged near Bermuda in 1995 boosted the
flow of CO2 into the
air over part of the Atlantic Ocean
by more than half, according to a report in tomorrow's issue of Nature.
They do this
by, for instance, measuring the electrical
flows within the barriers to determine the functionality of these barriers — or
by simulating lung -
air interaction using clouds of artificial fog.
This west - to - east
flow of
air in the Northern hemisphere is maintained
by the gradient of heat between the cool Arctic and warmer areas near the equator.
It widens the passage in the nostrils to increase
air flow by 50 per cent so stopping the wearer breathing through the mouth.
As the descending body penetrated deeper,
air resistance probably caused it to explode in an airburst with a strong
flow of heated gas that was carried downward
by its tremendous momentum.
Researchers have developed artificial whiskers that allow robots to «see» the surroundings in dark and murky places
by analysing the way the whiskers respond to water and
air flow.
Lockwood and his team suggest that the sun is affecting Northern Europe
by causing an increase in «blocking» of the northern jet stream, a fast -
flowing river of
air moving through the atmosphere.
Professor Leinweber and PhD candidate Adrian Kiratidis have been investigating the likely performance of the new ball
by matching up the physics of
air flow with available wind tunnel data and video of the ball's movement.
Perhaps the most important contribution
by the researchers at Fort Detrick is the insistence that rooms in level - three and level - four labs, which contain lethal agents, must be at negative pressure compared with the outside, so that if there's a breach,
air will
flow in.
«
By sensing gusts and disturbances in
air flow through their feathers, birds are able to fly gracefully rather than bouncing around in turbulent
air,» he said.
Current testing requires a series of methods including a spirometry test, which measures the amount (volume) and the speed (
flow) of
air during breathing, followed
by a body plethysmography test measuring static lung volumes and airways resistance and finally a diffusion test, which measures the amount of oxygen and other gases that cross the lungs»
air sacs.
The University of Tsukuba team has advanced this field of study
by establishing a novel approach to computational modeling of
air flow alongside wind tunnel experiments.
All four segments are contained within a large vented bag that helps the segments move
by allowing
air to
flow in and out.
Sandia is evaluating the receivers» performance with different gases
by flowing air, carbon dioxide and helium through the receiver tubes with the ultimate goal of pairing the new receiver designs with supercritical carbon dioxide Brayton cycles.
In 1994, a team led
by chemist Mitch Albert of the State University of New York, Stony Brook, showed that xenon can also light up
air flow in the lungs, which eludes standard MRI techniques.
The current
air traffic
flow - management system used
by the FAA uses multiple algorithms, or sets of rules, to manage aggregate delays.
The dunes there are memories of ancient winds, twisted like multimillennial weather vanes
by the
air that
flowed across the region tens of thousands of years ago.
In other words the heat
flows from the
air to the surface at a rate determined
by the number of molecules of greenhouse gas and their emission rate.
The worms» passageways introduce
air into the soil
by allowing oxygen and water to percolate down to growing plant roots and letting carbon dioxide produced from the plants
flow back out into the atmosphere.
This, in turn, results in too much mucin being produced
by the mucous membranes in the airways, restricting the
flow of
air and causing the shortness of breath felt during an asthma attack.
The fly must home in on the fruit
by tracking the odor, it must navigate the complex visual
flow of a three - dimensional world and, all the while, it must maintain flight speed and direction in the face of shifting
air currents.
According to a new study, evidence of alien life in the atmospheres of potentially habitable exoplanets could be hidden from telescopic eyes
by unusual
air flow patterns.
The innovative enclosure design features a circular opening that minimizes the wind - induced vibrations of the telescope structure while optimizing
air -
flow around the building to reduce distortion of the light collected
by the telescope's giant mirror.
«The strong south
air flow onto Greenland has produced warm
air, rain instead of snow, and melting of snow that is in Nuuk,» Greenland's capital, Jason Box, a researcher with the Geological Survey of Denmark and Greenland, said
by email.
A misty scent of Eucalyptus
flows through the
air as you are surrounded
by jewelry and holistic products including the eco-chic Mahalo skincare line that is exclusively available here at the spa.
The mesh design of this Zoobilee Secure - Me Crib Liner keeps your baby cooler in warmer temperatures
by allowing
air to
flow.
Among controlled installations, it includes lighting common areas (on and off, scheduling, etc.), energy management (display and recording of electrical parameters), pumping station of drinking water (pump status, levels and constant pressure) and the overall distribution network (pressure and
flow),
air conditioning and heating (on and off, temperature recording
by zones), compressed
air station laboratory (state of the compressors, room ventilation, pressure and
flow supplied) and administrative management (incidents, warnings reviews, etc).