Results 121 to 130 of about 324,296 (318)
Овощи России, 2018 The variability or stability of economically valuable features of varieties under cultivation conditions are very important indices. Environmental factors affect plants throughout the entire growing season.
S. V. Zharkova +2 more
doaj +1 more source
The 4-Dimensional Light Bulb Theorem [PDF]
J.AMS 33(2020) 609-652, 2017 For embedded 2-spheres in a 4-manifold sharing the same embedded transverse sphere homotopy implies isotopy, provided the ambient 4-manifold has no $\BZ_2$-torsion in the fundamental group. This gives a generalization of the classical light bulb trick to 4-dimensions, the uniqueness of spanning discs for a simple closed curve in $S^4$ and $\pi_0 ...
arxiv
Flexible bulb large storage box hydrogen maser [PDF]
The principal limitation on the accuracy of the hydrogen maser as a primary frequency standard has been the irreproducibility of the frequency shift caused by collisions of the radiating atoms with the walls of the vessel containing them.
Reinhardt, V.
core +1 more source
An improved atomic hydrogen frequency and time standard [PDF]
, 1969 Use of a large bulb, long-multipole magnet, automatic tuner and aluminum cavity provides an improved hydrogen maser which is accurate over long periods of time and suitable for tracking station ...
Mc Gunigal, T. E., Peters, H. E.
core +1 more source
Gentle Label‐Free Nonlinear Optical Imaging Relaxes Linear‐Absorption‐Mediated Triplet
Advanced Science, EarlyView.The phototoxicity in nonlinear optical microscopy arises mainly from linear absorption of intrinsic biomolecules rather than nonlinear absorption. This mechanism is supported by a reproducible phototoxicity assay based on widely available chicken breast.
Geng Wang +4 more
wiley +1 more source
SHALLOT VARIETIES DEVELOPED FOR THE CONDITIONS OF THE SOUTH OF WEST SIBERIA
Овощи России, 2018 Shallot is one of the most popular onion crops at present. This is a multi-purpose crop in terms of possible use of its economically valuable features. In order to realize the potential of this crop, its varieties are needed.
S. V. Zharkova +2 more
doaj +1 more source
Apparatus measures concentration of suspended droplets in gas streams [PDF]
, 1964 An apparatus, operating on the principle of wet and dry bulb thermometry, permits intermittent or continuous measurement of the concentration of droplets dispersed in a gas stream over a wide range of gas ...
Booth, F. W.
core +1 more source
A Disease of Narcissus Bulbs [PDF]
Bulletin of Miscellaneous Information (Royal Gardens, Kew), 1913 n ...
openaire +2 more sources
Advanced Science, EarlyView.Extended‐field acquisition enables sub‐micron X‐ray imaging of a full mouse brain. The 3.3‐teravoxel volume is reconstructed, registered to a reference atlas, and stored in hierarchical format to augment currently available atlases and improve resolution in the third dimension by an order of magnitude.
Mattia Humbel +8 more
wiley +1 more source
Wiring switches to more light bulbs [PDF]
arXivGiven $n$ buttons and $n$ bulbs so that the $i$th button toggles the $i$th bulb and perhaps some other bulbs, we compute the sharp lower bound on the number of bulbs that can be lit regardless of the action of the buttons. In the previous article we dealt with the case where each button affects at most 2 or 3 bulbs. In the present article we give sharp
arxiv