Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Three super defined

Due to the formal analogy to the classical Diels-Alder reaction, the mechanism of cyclic peroxide formation through cycloadditions of 1,3-dienes with O2 was considered for a long time to involve a concerted suprafacial [4 4- 2]-cycloaddition of a super-dienophile, namely a singlet oxygen to 1,3-dienic system In such a case, the concerted or almost concerted cycloaddition must be c -stereospecific and the stereochemical properties of the diene must be reflected in the three-dimensional structure of cyclic peroxide according to well-defined rules. Indeed, it was found in early stereochemical... [Pg.253]

We will discuss three cold dark matter candidates which are well-motivated , i.e. that have been proposed to solve problems in principle unrelated to dark matter and whose properties can be computed within a well-defined particle physics model. The three candidates we discuss are (1) a heavy active neutrino with standard model interactions, (2) the neutralino in the minimal super-symmetric standard model, and (3) the axion. Examples of other candidates that can be included in this category are a sterile neutrino (See e.g. Abazajian, Fuller, Patel (2001)) and other supersymmetric particles such as the grav-itino (See e.g. Ellis et al.(1984)) and the sneutrino (see, e.g.,Hall, Moroi Murayama( 1998)). [Pg.285]

The terms major and minor helix are used here as defined by Crick (1953) in his original presentation of the coiled-coil (or super-helix) concept. The minor helix defines the turns of the residues of an individual chain around its own axis. The major helix defines the turns of the minor helix around an axis outside of itself e.g., the common axis running up the center of the group of three chains in the collagen case. [Pg.48]

Super-resolution in chromatography is defined as the ability to detect the presence of two or more components when their mean elution tines fall within two standeurd peak widths of each other. Numerical deconvolution techniques for achieving superresolution eu e considered for the case of a single channel detector (7ZD), a multichannel detector (HS) and a two dimensional detector (video fluorometer). It is shown that the degree of ambiguity of the deconvolution decreases in going from a monochannel detector to a multicdiannel detector to a multidimensional detector. Three types of analytical situations are considered for each type of detector ... [Pg.171]

Figure 2. Responses of three strains of the housefly to single doses of deltamethrin and aconitine in a larval paralysis bioassay. Paralysis was assessed 10 min. after treatment and was defined as the loss of ability to perform a stereotypic curling movement. Resistance in the kdr and super-kdr strains is directed against both compounds. For each treatment group shown n = 60. The bar for deltamethrin in super-kdr is omitted because no paralysis was observed at dosages up to 20 p.g/larva (n = 40). Data were taken from Ref. 22. Figure 2. Responses of three strains of the housefly to single doses of deltamethrin and aconitine in a larval paralysis bioassay. Paralysis was assessed 10 min. after treatment and was defined as the loss of ability to perform a stereotypic curling movement. Resistance in the kdr and super-kdr strains is directed against both compounds. For each treatment group shown n = 60. The bar for deltamethrin in super-kdr is omitted because no paralysis was observed at dosages up to 20 p.g/larva (n = 40). Data were taken from Ref. 22.
Super-duty Fireclay Refractory. Defined in ASTM - C27 as a fireclay brick having a P.C.E. 33 and an after-contraction 1% when tested at 1600 C. There are three types Regular, Spall Resistant, Slag Resistant. Limits are set for panel spalling loss, modulus of rupture and bulk density. ASTM C-673 specifies a super-duty plastic refractory with P.C.E. 321/. ... [Pg.316]

Figure 1. Three of five dimensions of the super cube used for state defining. Figure 1. Three of five dimensions of the super cube used for state defining.
IIS Beams were selected among vital LHC components, for their ability to prevent the injection and circulation of beams, and this, in parallel to the beam extraction system. The elements preventing injection are mobile absorber blocks, horizontal dipole magnet chains, and injection septa magnets. They are located in tunnels ensuring the beam transfer between the SPS (Super Proton Synchrotron) accelerator and the LHC. In each injection tunnel, three IIS Beams define an interlock chain, named LHC2 chain and LHC8 chain, respectively. [Pg.452]

One of the problems in metadynamics is that the maximum number of CVs that can be used in practice is limited. In particular, it is very difficult to converge metadynamics simulations performed using more than three CVs. This limits the applicability of the method to cases where a few appropriate CVs are known a priori. However, if one is able to define a super-set of CVs, which is very likely to include the appropriate CVs, multiple metadynamics simulations can be conveniently combined by means of bias exchange metadynamics (BEMD). ... [Pg.38]

Figure 3 The bond angle potential on the meso-scale for polystyrene obtained by the Iterative Boltzmann Method. The angle is defined by three consecutive super-atoms... Figure 3 The bond angle potential on the meso-scale for polystyrene obtained by the Iterative Boltzmann Method. The angle is defined by three consecutive super-atoms...
Analysis of Forces Three super-imposed systems of coordinates have been defined... [Pg.430]

Solution The frequency of the physical pendulum s oscillation and the period of its oscillations can be found according to eqs. (2.4.14) and (2.4.13). There are three values to define total weight m, the Ml of the pendulum relative to the axis of oscillation and the distance from the axis of oscillations up to the center of weights /. Oscillation axis z passes through the center of the rod perpendicular to the plane of drawing let us direct an axis x vertically downward (parallel to the rod) and super-... [Pg.123]


See other pages where Three super defined is mentioned: [Pg.267]    [Pg.253]    [Pg.174]    [Pg.83]    [Pg.45]    [Pg.2]    [Pg.31]    [Pg.339]    [Pg.222]    [Pg.500]    [Pg.418]    [Pg.183]    [Pg.481]    [Pg.34]    [Pg.217]    [Pg.199]    [Pg.500]    [Pg.255]    [Pg.1]    [Pg.187]    [Pg.15]    [Pg.565]    [Pg.18]    [Pg.713]    [Pg.322]    [Pg.7]    [Pg.95]    [Pg.500]    [Pg.780]    [Pg.398]    [Pg.513]    [Pg.164]    [Pg.52]    [Pg.237]    [Pg.195]   
See also in sourсe #XX -- [ Pg.7 ]




SEARCH



Super three

© 2024 chempedia.info