Results 41 to 50 of about 130,490 (322)
Research on Adaptive Control of Air-Borne Bolting Rigs Based on Genetic Algorithm Optimization
, 2021 Rotation speed and propulsive force are the two critical parameters in the work of the air-borne bolting rig. To address the problem that unreasonable rotation speed and propulsive force will induce the breakage of the drill pipe and the inability of the
Qingyun Liu, Yiwen Zha, Tao Liu, Chao Lu
semanticscholar +1 more source
The stamina of non-gasketed, flanged pipe connections [PDF]
, 2000 Stress variations showing flange yielding, flange rotation, effects of joint tightening sequence, identification of the mode of response to loading (static or dynamic) is discussed.
D.H. Nash +4 more
core +1 more source
Laboratory studies of a high-strength roof bolting by means of self-extending mixtures [PDF]
, 2019 Purpose is to analyze parameters of a new method to fasten roof bolts with the help of nonadhesive mixtures extending while hardening along with the development of high expansion pressures. Methods.
Isaienkov, O +3 more
core +1 more source
BMC Genomics, 2021 Background Vernalization is a type of low temperature stress used to promote rapid bolting and flowering in plants. Although rapid bolting and flowering promote the reproduction of Chinese cabbages (Brassica rapa L. ssp.
Yun Dai +10 more
doaj +1 more source
The effect of insect herbivory on the growth and fitness of introduced Verbascum thapsus L. [PDF]
, 2013 A majority of the plant species that are introduced into new ranges either do not become established, or become naturalized yet do not attain high densities and are thus considered ecologically and economically unproblematic. The factors that limit these
Alba, Christina +3 more
core +2 more sources
Frontiers in Plant Science, 2016 The transition of vegetative growth to bolting and flowering is an important process in the life cycle of plants, which is determined by numerous genes forming an intricate network of bolting and flowering.
Shanshan eNie +7 more
doaj +1 more source
Numerical methods of geomechanics tasks solution during coal deposits’ development [PDF]
, 2016 Purpose. Generalization of numerical modeling of geomechanical processes in the vicinity of mine workings by finite elements method and making recommendations for substantiation of suitable construction and behavior of rock massif physical model ...
Bondarenko, V +4 more
core +2 more sources
Frontiers in Plant Science, 2016 Sugar beet (Beta vulgaris ssp. vulgaris) is a biennial, sucrose-storing plant, which is mainly cultivated as a spring crop and harvested in the vegetative stage before winter.
Conny Tränkner +11 more
doaj +1 more source
Agronomy, 2021 Radish flower color, bolting time, and flowering time are important traits for attracting certain pollinators and affect fleshy root quality. In this study, an analysis of the anthocyanidins in radish flowers by high-performance liquid chromatography ...
Yinbo Ma +6 more
semanticscholar +1 more source
Inhibition of spinach bolting by growth regulators
Acta Agrobotanica, 2015 Spinach (Spinacia oleracea L.) plants must be harvested during a short period of time because they bolt just after producing some edible leaves. Maleic hydrazide (MH) and its commercial preparation "Antyrost" were found to inhibit bolting very strongly ...
Jan Borkowski, Leszek S. Jankiewicz
doaj +1 more source