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maximum and theoretical
For example, if 95 % of the program can be parallelized, the theoretical maximum speedup using parallel computing would be 20 × as shown in the diagram, no matter how many processors are used.
It is often used in parallel computing to predict the theoretical maximum speedup using multiple processors.
Modern Class AB amplifiers commonly have peak efficiencies between 30 – 55 % in audio systems and 50-70 % in radio frequency systems with a theoretical maximum of 78. 5 %.
Such processes and devices can only be driven by convertible energy, and have a theoretical maximum efficiency when converting energy to work.
* They are very inefficient ; a theoretical maximum of 50 % is obtainable with inductive output coupling and only 25 % with capacitive coupling, unless deliberate use of nonlinearities is made ( such as in square-law output stages ).
Class B has a maximum theoretical efficiency of π / 4.
Dependent upon the method employed, an average density of the loaded charge can be obtained that is within 80 – 99 % of the theoretical maximum density of the explosive.
EDGE can carry a bandwidth up to 384 kbit / s ( with end-to-end latency of less than 150 ms ) for 4 timeslots ( theoretical maximum is 473. 6 kbit / s for 8 timeslots ) in packet mode.
There were many other interactive exhibits, a cafe, a shop and one of Britain's fastest cybercafés ( a one gigabit pipe and a theoretical maximum speed per iMac of 100 Mbit ).
The theoretical maximum efficiency of any heat engine depends only on the temperatures it operates between.
Using 2. 4 GHz, 5 GHz and 60 GHz, the new standard can achieve a theoretical maximum throughput of up to 7Gbit / s.
Thus, the maximum theoretical extent of a given mass transfer is typically determined by the point at which the chemical potential is uniform.
These ATP yields are theoretical maximum values ; in practice, some protons leak across the membrane, lowering the yield of ATP.
As the theoretical model suggests, for a Pelton wheel working at maximum efficiency, φ is about 1 / 2.
The maximum theoretical payout, assuming 100 % return to player would be 1000 times the bet, but that would leave no room for other pays, making the machine very high risk, and also quite boring.
They are ' maximum theoretical throughput ', ' maximum achievable throughput ', and ' peak measured throughput ' and ' maximum sustained throughput '.
UMTS supports maximum theoretical data transfer rates of 42 Mbit / s when HSPA + is implemented in the network.
Its two 30-horsepower electrical motors, powered by 613 batteries, gave it a theoretical range of 396 nautical miles and a maximum speed of 10. 9 knots an hour at the surface.
* July 16, 2186: Total solar eclipse of 7 min 29 s ( very close to the theoretical maximum ), saros 139, " crowing " this series.
Other reports quote the theoretical maximum efficiency of electrolysis as being between 80 % and 94 %.
The theoretical maximum considers the total amount of energy absorbed by both the hydrogen and oxygen.
The degree of isochronous distortion, in data transmission, is the ratio of the absolute value of the maximum measured difference between the actual and the theoretical intervals separating any two significant instants of modulation ( or demodulation ), to the unit interval.

maximum and efficiency
The luminous efficiency Af of a photocathode depends on the maximum radiant sensitivity Af and on the spectral distribution of the incident light Af by the relation: Af where Af is normalized radiant photocathode sensitivity.
Each system develops differently, according to the area it serves, but the universal goal is to pool the resources of a given area for maximum efficiency.
Inductive coupling of the output can raise their efficiency to a maximum of 50 %.
Because the cytochromes ( as well as other complexes ) are held within membranes in an organized way, the redox reactions are carried out in the proper sequence for maximum efficiency.
The benefit of maximum likelihood estimation is asymptotic efficiency ; estimating x < sub > 0 </ sub > using the sample median is only about 81 % as asymptotically efficient as estimating x < sub > 0 </ sub > by maximum likelihood.
The first highly ( or tightly ) pipelined x86 implementations, the 486 designs from Intel, AMD, Cyrix, and IBM, supported every instruction that their predecessors did, but achieved maximum efficiency only on a fairly simple x86 subset that was only a little more than a typical RISC instruction set ( i. e. without typical RISC load-store limitations ).
The design of the liquid distributors used to introduce the feed and reflux to a packed bed is critical to making the packing perform to it maximum efficiency.
The maximum thermal efficiency of a Diesel cycle is dependent on the compression ratio and the cut-off ratio.
Dialectical materialism is a strand of Marxism, synthesizing Hegel's dialectics, which proposes that every economic order grows to a state of maximum efficiency, while simultaneously developing internal contradictions and weaknesses that contribute to its systemic decay.
Through the efforts of Clausius and Kelvin, it is now known that the maximum work that can be done is the product of the Carnot efficiency and the heat absorbed at the hot reservoir:
Inefficiency comes not just from the fact that the device is always conducting to some extent ( that happens even with class AB, yet its efficiency can be close to that of class B ); it is that the standing current is roughly half the maximum output current ( although this can be less with square law output stage ), together with the problem that a large part of the power supply voltage is developed across the output device at low signal levels ( as with classes AB and B, but unlike output stages such as class D ).
This efficiency is usually derived using an ideal imaginary heat engine such as the Carnot heat engine, although other engines using different cycles can also attain maximum efficiency.
The environment in a hydroponics greenhouse is tightly controlled for maximum efficiency, and this new mindset is called soil-less / controlled-environment agriculture ( CEA ).
Coding theory is concerned with finding explicit methods, called codes, of increasing the efficiency and reducing the net error rate of data communication over a noisy channel to near the limit that Shannon proved is the maximum possible for that channel.
It is also commonly recommended that lights be spaced appropriately for maximum efficiency, and that lamps within the fixtures not be overpowered.
When a system design includes a centrifugal pump, an important issue it its design is matching the head loss-flow characteristic with the pump so that it operates at or close to the point of its maximum efficiency.
For maximum power and efficiency, the turbine system is designed such that the water-jet velocity is twice the velocity of the bucket.
As the equations indicate, when a real Pelton wheel is working close to maximum efficiency, the fluid flows off the wheel with very little residual velocity.

maximum and heat
At its maximum, the temperature of the spacecraft's heat shield was between.
Therefore, as long as the lower pot does not become pressurized or boiled dry, the maximum temperature contacted by the upper vessel will be the boiling point of water, and scalding or uneven heat is avoided.
Other than the heat retention properties of urban areas, the nighttime maximum in urban canyons could also be due to the blocking of " sky view " during cooling: surfaces lose heat at night principally by radiation to the comparatively cool sky, and this is blocked by the buildings in an urban area.
Research has found that the mortality rate during a heat wave increases exponentially with the maximum temperature, an effect that is exacerbated by the UHI.
The model allows calculating the latent heat by multiplying the maximum surface area covering an atom ( Fig.
In 1875, after quantifying the heats of reaction for a large number of compounds, Berthelot proposed the principle of maximum work, in which all chemical changes occurring without intervention of outside energy tend toward the production of bodies or of a system of bodies which liberate heat.
Reaction calorimetry can also be used to determine maximum heat release rate for chemical process engineering and for tracking the global kinetics of reactions.
The heat is constant, the average maximum temperature in the shade is on average in the afternoon, and the average minimum temperature is in the morning.
The length of time taken to complete this project was partly due to experimentations and improvements in the process developed by Murdoch to make the lighting of a large factory by gas practicable and cost effective-such as purifying the gas with lime to remove the smell and determining the best temperature to heat coal to obtain the maximum quantity of gas-although Murdoch continued to be involved in other engine work for Boulton and Watt, which took up much of his time.
* R < sub > hs </ sub > is the maximum thermal resistance of the heat sink to ambient, in ° C / W ( equivalent to K / W )
For example, if a component produces 100 W of heat, and has a thermal resistance of 0. 5 ° C / W, what is the maximum thermal resistance of the heat sink?
Testing analyzes characteristics such as flammability, maximum operating temperature, electrical tracking, heat deflection, and direct support of live electrical parts.
Skylights on east-facing roofs provide maximum direct light and solar heat gain in the summer morning.
The maximum permissible current density of copper in open air is approximately 3. 1 × 10 < sup > 6 </ sup > A / m < sup > 2 </ sup > of cross-sectional area, above which it begins to heat excessively.
Thus, a heat engine exhibiting maximum efficiency is thermodynamically impossible.
South facing roof slopes and windows were built to capture maximum sunlight, and blowers and hydronic systems were installed to circulate the collected heat.
For normal use, the selection of a spark plug heat range is a balance between keeping the tip hot enough at idle to prevent fouling and cold enough at maximum power to prevent pre-ignition or engine knocking.
The maximum amount of heat or mass transfer that can be obtained is higher with countercurrent than cocurrent ( parallel ) exchange because countercurrent maintains a slowly declining difference or gradient ( usually temperature or concentration difference ).

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