*** Low partial pressure of oxygen in the lungs when switching from inhaled anesthesia to atmospheric air, due to the Fink effect, or diffusion hypoxia.

* January 1 – Germany begins Operation Bodenplatte, an attempt by the Luftwaffe to cripple Allied air forces in the Low Countries

Low humidity increases viral transmission rates potentially due to dry air allowing small viral droplets to disperse farther and stay in the air longer.

Pressure | Low pressure air hose for the dry suit, CEJN type

The California Air Resources Board ( CARB ) classified the car with an air pollution score of 3 out of 10 as an Ultra Low Emission Vehicle ( ULEV ).

* Low Temperature Difference engine, a heat engine that operates by cyclic compression and expansion of air or other gas, see Stirling engine

Established on 22 February 1944 as a redesignation of VIII Bomber Command at High Wycombe Airdrome, England, 8 AF was a United States Army Air Forces combat air force in the European Theater of World War II, engaging in operations primarily in the Northern Europe AOR, carrying out strategic bombing of enemy targets in France, the Low countries and Germany and engaging in air to air fighter combat against enemy aircraft until the German Capitulation in May 1945.

On 1 January, the entire German fighter force took off and attacked 27 Allied airfields in northern France, Belgium and the southern part of the Netherlands in an attempt by the Luftwaffe to cripple Allied air forces in the Low Countries of Europe.

Time Division Synchronous Code Division Multiple Access ( TD-SCDMA ) or UTRA / UMTS-TDD 1. 28 Mcps Low Chip Rate ( LCR ), is an air interface found in UMTS mobile telecommunications networks in China as an alternative to W-CDMA.

They also had unique engine hatches, and up until 1971 front indicators set low on the nose rather than high on either side of the fresh air grille – giving rise to their nickname as " Low Lights ".

During the winter of 1938 – 1939, Goerdeler sent reports to the British stating that Hitler was pressuring Italy into attacking France, was planning to launch a surprise air offensive against Britain, intended to achieve a " knock-out blow " by razing British cities to the ground sometime in the second half of February 1939, and was considering an invasion of Switzerland and the Low Countries as a prelude to attacking France and Britain.

* Low relative humidity of inhaled air ( particularly during cold winter seasons )

* Low air density hampers an aircraft's ability to climb.

Low air pressure begins to have marginal but detectable effects at the summit ( 2654. 4 m ; 8, 708. 7 ft ).

Low air temperature higher up can be masked by high insolation under clear skies, but will take its effect with increased cloud cover.

" As thrust is increased, the pressure from this port rises until " crossover ," where the " High Pressure Shut-Off Valve " ( HPSOV ) closes and air is thereafter drawn from the " Low Pressure Bleed Port.

* Low speed-Water transport as a whole is much slower than its road, rail, or air competitors.

The analysis concluded that Low NOx burners with separated overfire air ( SOFA ) would provide the best available retrofit technology alternative in accordance with EPA BART guidelines.

Low NO < sub > x </ sub > burners with separated overfire air used to control nitrogen oxide emissions.

* Low boundary layers, which may increase the way viruses are transmitted by increasing the amount of stagnant air.

Low valent volatile sulfur compounds are also found in areas where oxygen levels in the air are low, posing a risk of suffocation.

Low levels of maternal gene flow from North Africa and the Horn of Africa were also observed in a few groups, mainly via the presence of mtDNA haplogroup M and haplogroup I lineages in about 12. 5 % of the Maasai and 7 % of the Samburu samples, respectively.

On the basis of this ( finite ) group equation, Gell-Mann and Low then focussed on infinitesimal transformations, and invented a computational method based on a mathematical flow function ψ ( g )

Low renal blood flow activates the renin-angiotensin-aldosterone system ( RAAS ), causing fluid retention and mild hypertension.

It's clear, given these prerequisites, that contact pressure and developed temperature is highly dependent on the lumps geometry. Flow of material exhibits an increase in energy density, because initial phase transformation and displacement of material demand acceleration of material and high pressure. Low pressure is not compatible with plastic flow, only after deceleration may the flowing material be exposed to low pressure and quickly cooled.

# Low Mach-number flow / Pseudo-incompressibility:.

Low flow shower heads, less than or equal 7. 6 liters per minute ( 2. 0 gallon per minute ), can use water more efficiently by aerating the water stream, altering nozzles through advanced flow principles or by high speed oscillation of the spray stream.

The levels within the system are managed by a further five " Low flow " pumping stations.

Low Flow policy pertains to states and tribes water quality standards that identify procedures applied to determining critical low flow conditions.

" It was a main road leading north from Habsburg holdings in Northern Italy into the Low Countries, protected by forts built at strategic intervals, to provide the army with a reliable flow of supplies.

* Low total flow when only some dampers are open can cause inefficient operation.

The first two floodgates are the Low Sill Control Structure, which regulates routine flow in the waterway, and the Overbank Control Structure, in use only when the Mississippi exceeds its banks.

Low voltage cabling is permitted because current flow is typically negligible so the risk of overheating and fire is limited.

# Low oxygen alarm-Almost all circuits have a backup alarm in case the oxygen delivery to the patient becomes compromised.

Each control unit was " strapped " as High or Low priority.

Abraham Low, a critic of psychoanalysis, stressed the importance of will, the ability to control thoughts and impulses, as fundamental for achieving mental health.

Alsatian ( Alsatian and ( literally Alsatian-German ); ; or Elsässerdeutsch ) is a Low Alemannic German dialect spoken in most of Alsace, a region in eastern France which has passed between French and German control many times.

As chieftains ( in Low German: " hovedlinge "; in standard German: " Häuptlinge ") they took control over villages, cities, and regions in East Frisia ; however, they still did not establish a feudal system as it was known in the rest of Europe.

One policy proposal to control global warming that Koch Industries has come out against is Low Carbon Fuel Standards, such as were passed in 2007 in California.

They resulted in expanded French control to the Low Countries,: Italy, and the Rhineland.

In 1917, Archibald Low as head of the RFC Experimental Works, was the first person to use radio control successfully on an aircraft.

Before the Low Countries could be completely reconquered, a war between England and Spain ( the Anglo-Spanish War ( 1585 – 1604 )) broke out, forcing Spanish troops to halt their advances and leaving them in control of the important trading cities of Bruges and Ghent, but without control of Antwerp, which was then arguably the most important port in the world.

The Ingleton Branch Line from there to Low Gill, where it joined the Lancaster and Carlisle Railway, was under the control of the rival LNWR.

Although the territory of the Duchy of Burgundy itself remained in the hands of France, the Habsburgs remained in control of the title of Duke of Burgundy and the other parts of the Burgundian inheritance, notably the Low Countries and the Free County of Burgundy in the Holy Roman Empire.

A permanent low-pressure system over Iceland ( the Icelandic Low ) and a permanent high-pressure system over the Azores ( the Azores High ) control the direction and strength of westerly winds into Europe.

Low power TRIACs are used in many applications such as light dimmers, speed controls for electric fans and other electric motors, and in the modern computerized control circuits of many household small and major appliances.

Low beams ( called " dipped beams " or " passing beams " in some countries ) have stricter control of upward light, and direct most of their light downward and either rightward ( in right-traffic countries ) or leftward ( in left-traffic countries ), to provide safe forward visibility without excessive glare or backdazzle.

During the period 13631477, the duchy was ruled by a succession of dukes whose extinction with the death of Charles the Bold ( or " the Brash ") in 1477 led to its absorption into the French crown by King Louis XI, while the Low Countries fell under Habsburg control, passing with the abdication of King Charles I of Spain ( Charles V as Holy Roman Emperor ) to the Spanish Empire of Philip II of Spain.

In Europe, plugs and sockets without additional control or surge protection circuits are outside the scope of the Low Voltage Directive 2006 / 95 / EC and controlled by National regulations, and therefore must not be CE marked.

If a socket outlet unit contains additional control circuits or surge protection circuits they will fall within the scope of the Low Voltage Directive 2006 / 95 / EC and must be CE marked.

John Churchill, Earl ( later Duke ) of Marlborough, ranked as Captain-General with limited authority over Dutch forces, arrived in the Low Countries soon afterwards to assume control of a multi-national army organised by the Grand Alliance.

Low key light accentuates the contours of an object by throwing areas into shade while a fill light or reflector may illuminate the shadow areas to control contrast.

According to The Publican, " Low price RYO has seen an astonishing rise of 175 per cent in as cigarette smokers look for cheaper alternatives and to control the size of their smoke ".

After the British took control of the entire island of Ceylon in 1815 it was divided into three ethnic based administrative structures: Low Country Sinhalese, Kandyan Sinhalese and Tamil.

CCS depended on Advanced Program-to-Program Communications, also known as APPC or LU6. 2, Systems Network Architecture ( SNA ) PU2. 1 or Low Entry Networking for peer to peer networking, and SNA Management Services for network control.

For example, in " Rock Crawl ", the suspension is raised to its maximum height and set to allow maximum wheel articulation, the differentials are locked, the driver is prompted to switch to Low Range, and the throttle response is altered to provide low-speed control.

Lead ore was Crown property in most places and the mining area of Derbyshire under royal control was known as the King's Field, with two separately administered divisions, the High and Low Peaks, each further divided into liberties, based on parishes.