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Minimization efficiency

DNA is retrieved from these algae with minimal efficiency. Whether this recovery is due to a low chloroplast-nuclear DNA ratio within dinoflagel-lates or to a naturally low abundance of plastid DNA copies per dinoflagel-late cell is presently unknown. Modifications of the procedure described above wherein glass beads were used to fractionate cells, and a different buffer-detergent-incubation program followed,4 did not improve the efficiency of chloroplast DNA recovery. [Pg.175]

Minimal efficiency reduction except in extreme cases Higher weirs improve efficiency in froth systems—moderate impact Higher weeping reduces efficiency. Large effect Minimal effect... [Pg.763]

Those particles below 500 nm in real diameter will be phagocytized with minimal efficiency and tend to translocate to the pulmonary interstitial space. We will examine the mass fraction and the surface area fraction of the aerosol translocated to the pulmonary interstitial space. We expect that the fraction of the total surface area will be the most important metric to examine (16,17,47, 54, 69, 70). Let us calculate the fraction of the mass and the surface area in particles <500 nm diameter. [Pg.768]

Green chemical engineering processes (process integration, materials diversity, energy saving, waste minimization, efficient separation processes etc.)... [Pg.248]

This last requirement frequently is overlooked. Its consideration is paramount in the design of filters compounded from fibrous materials. For a particular filter there is an intermediate air velocity at which filtration effciency is a minimum. If the filter design is based upon a performance observed at an operating velocity other than that at which minimum efficiency occurs, surges or brief power failures could create periods of operation at lower than designed-for efficiencies. Hence the filter design should be based on satisfactory operation at this point of minimal efficiency. [Pg.931]

Minimal efficiency at an intermediate air velocity occurs because different forces act to collect airborne particles at different velocities. At low velocities, gravitational, diffusional, and electrostatic forces act on the particle. Their effect is inversely proportional to air velocity. At high velocities, inertia forces come into play, and they are directly proportional to air velocity. The nature of inertial effects is such that below a certain air velocity, collection due to inertial forces is zero. [Pg.931]

The major products of combustion are CO2, water, SO, and NO. The products of combustion are clearly beshminimized by making the process efficient in its use of energy through improved heat recovery and avoiding unnecessary incineration through minimization of process waste. [Pg.305]

Chemical processes will in the future need to be designed as part of a sustainable industrial development which retains the capacity of ecosystems to support industrial activity and life. This book therefore places a high emphasis on waste minimization and energy efficiency in the context of good economic performance and good health and safety practices. [Pg.473]

In order to maintain high energy efficiency and ensure a long service life of the materials of construction in the combustion chamber, turbine and jet nozzle, a clean burning flame must be obtained that minimizes the heat exchange by radiation and limits the formation of carbon deposits. These qualities are determined by two procedures that determine respectively the smoke point and the luminometer index. [Pg.226]

The Internet advertising mechanism works much the same way as its "real world" counterpart. Company Homepages are electronic brochures and are disseminated by using new methods. But the methods are actually not new, they are basically the same as those used in printed journals This is efficiently done on an online Journal like NDTnet where advertising is concentrated in a virtual NDT Exhibition that attracts many readers to the site. The exhibitors have had good experiences with their presentations In contrast to individual Homepages which may often experience minimal traffic, NDTnet is visited by more than 6000 readers each month. Links to its exhibitors Homepages increase the audience and the information available. [Pg.978]

Although it was originally developed for locating transition states, the EF algoritlnn is also efficient for minimization and usually perfonns as well as or better than the standard quasi-Newton algorithm. In this case, a single shift parameter is used, and the method is essentially identical to the augmented Hessian method. [Pg.2352]

The complexity analysis shows that the load is evenly balanced among processors and therefore we should expect speedup close to P and efficiency close to 100%. There are however few extra terms in the expression of the time complexity (first order terms in TV), that exist because of the need to compute the next available row in the force matrix. These row allocations can be computed ahead of time and this overhead can be minimized. This is done in the next algorithm. Note that, the communication complexity is the worst case for all interconnection topologies, since simple broadcast and gather on distributed memory parallel systems are assumed. [Pg.488]

There have been a few basis sets optimized for use with DFT calculations, but these give little if any increase in efficiency over using EIF optimized basis sets for these calculations. In general, DFT calculations do well with moderate-size HF basis sets and show a significant decrease in accuracy when a minimal basis set is used. Other than this, DFT calculations show only a slight improvement in results when large basis sets are used. This seems to be due to the approximate nature of the density functional limiting accuracy more than the lack of a complete basis set. [Pg.85]

Alkynes undergo stoichiometric oxidative reactions with Pd(II). A useful reaction is oxidative carboiiyiation. Two types of the oxidative carbonyla-tion of alkynes are known. The first is a synthesis of the alkynic carbox-ylates 524 by oxidative carbonylation of terminal alkynes using PdCN and CuCh in the presence of a base[469], Dropwise addition of alkynes is recommended as a preparative-scale procedure of this reation in order to minimize the oxidative dimerization of alkynes as a competitive reaction[470]. Also efficient carbonylation of terminal alkynes using PdCU, CuCI and LiCi under CO-O2 (1 I) was reported[471]. The reaction has been applied to the synthesis of the carbapenem intermediate 525[472], The steroidal acetylenic ester 526 formed by this reaction undergoes the hydroarylalion of the triple bond (see Chapter 4, Section 1) with aryl iodide and formic acid to give the lactone 527(473],... [Pg.97]


See other pages where Minimization efficiency is mentioned: [Pg.29]    [Pg.414]    [Pg.137]    [Pg.213]    [Pg.422]    [Pg.279]    [Pg.177]    [Pg.17]    [Pg.229]    [Pg.230]    [Pg.229]    [Pg.268]    [Pg.432]    [Pg.214]    [Pg.29]    [Pg.414]    [Pg.137]    [Pg.213]    [Pg.422]    [Pg.279]    [Pg.177]    [Pg.17]    [Pg.229]    [Pg.230]    [Pg.229]    [Pg.268]    [Pg.432]    [Pg.214]    [Pg.111]    [Pg.1475]    [Pg.2202]    [Pg.2333]    [Pg.73]    [Pg.209]    [Pg.222]    [Pg.552]    [Pg.239]    [Pg.240]    [Pg.314]    [Pg.406]    [Pg.472]    [Pg.256]    [Pg.676]    [Pg.204]    [Pg.99]    [Pg.189]    [Pg.61]    [Pg.256]    [Pg.258]   
See also in sourсe #XX -- [ Pg.89 , Pg.90 , Pg.91 ]




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