Results 261 to 270 of about 248,982 (289)
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MULTIPLE EVENTS IN REFRACTION SHOOTING*
Geophysical Prospecting, 1965ABSTRACTA description and classification is given for those later events in seismograms of refraction–and wide angle reflection shooting which travel nearly parallel and at constant time intervals behind the first arrivals and which are frequently observed in field surveys.
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Complementary Condensing for the Direct Multiple Shooting Method
2012In this contribution we address the efficient solution of optimal control problems of dynamic processes with many controls. Such problems typically arise from the convexification of integer control decisions. We treat this problem class using the direct multiple shooting method to discretize the optimal control problem. The resulting nonlinear problems
Kirches, Christian +3 more
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Shoot Tip Culture of Helianthus annuus-Flowering and Development of Adventitious and Multiple Shoots
American Journal of Botany, 1984Shoot multiplication of Helianthus annuus was optimal from half shoot apices cultured on MS media with 0.1–1.0 mg/1 benzyl adenine or kinetin. Auxins inhibited multiplication and promoted callusing. Rooting was poor and was not promoted by auxins. Flowering of multiple shoots was observed after as little as 3 wk of culture.
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IN VITRO INDUCTION OF MULTIPLE SHOOTS IN DENDROBIUM
Madras Agricultural Journal, 1999Investigations to standardise the optimal chemical environment for in vitro induction of multiple shoots in Dendrobium ev. Sonia revealed that MS medium fortified with 5.0 mg -1 kinetin and 0.5 mg 1-1 GA-1 recorded the maximum number of microshoots per culture, the longest microshoots and the maximum number of leaves per microshoot.
GANGA M, SARASWATHI M.S, CHEZHIYAN N
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Posttrauma Reactions Following a Multiple Shooting
1993This chapter describes an investigation of psychological reactions among the survivors of a multiple shooting that occurred in a Melbourne city office block on December 8, 1987. Nine people died and a further five were injured in an incident that has become known as the Queen Street Shootings. The research was undertaken to examine levels of posttrauma
Mark Creamer +3 more
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Regeneration of multiple shoots and plants from Mesembryanthemum crystallinum
Plant Cell Reports, 1991Mesembryanthemum crystallinum plants have been regenerated via organogenesis from hypocotyl, cotyledonary node, and leaf expiants with varying frequencies. The highest regeneration frequencies were obtained from either hypocotyls (23-34%) or cotyledonary nodes (21-41%). Leaf expiants yielded very poor regeneration frequencies (0-11%).
M S, Meiners +3 more
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Smoothing the function of the multiple-shooting equation
Applied Mathematics & Optimization, 1991Consider the \(n\)-dimensional boundary value problem \[ y'(x)=f(x,y)= \begin{cases} f_ 1(x,y)\quad &\text{if }a\leq x < s_ 1,\\ f_ 2(x,y)\quad &\text{if } s_ 1\leq x < s_ 2,\\ \vdots \\ f_{l+1}(x,y) \quad&\text{if }s_ l \leq x\leq b,\end{cases} \] when \(f_ i\) are smooth, with the boundary conditions \(R(y(a),y(b))=0\), together with certain ...
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NUMERICAL TREATMENT OF MINIMAX CONTROL PROBLEMS BY MULTIPLE SHOOTING
Annual Review in Automatic Programming, 1985This paper presents the application of multiple shooting techniques to minimax optimal control problems. A standard transformation is used to convert the minimax problem into an equivalent optimal control problem with state variable inequality constraints. Using this technique the highly developed theory on the necessary conditions for state-restricted
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Variational Multiple Shooting: Theory and Applications
2017Electric low-thrust propulsion has nowadays found wide application in space dynamics as it entails considerable savings in spacecraft propellant mass, thanks to the very high specific impulse that this kind of engine is able to generate. However, continuous thrust opens new extensive sets of feasible trajectories, and optimization algorithms are needed
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Parallel performances of a nonstandard multiple shooting,
1997A parallel multiple shooting based on the Switching-method is given. The possibility of efficient parallel implementations is explored and two parallel strategies are discussed. Computational testing on significative non-linear BVPs indicates speedups of the order of the number of processors employed.
BELLAVIA, STEFANIA +2 more
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