نتایج جستجو برای: yield acceleration

تعداد نتایج: 240132  

Journal: :Electr. J. Comb. 1997
Tewodros Amdeberhan Doron Zeilberger

Based on the WZ method, some series acceleration formulas are given. These formulas allow us to write down an infinite family of parametrized identities from any given identity of WZ type. Further, this family, in the case of the Zeta function, gives rise to many accelerated expressions for ζ(3). AMS Subject Classification: Primary 05A We recall [Z] that a discrete function A(n,k) is called Hyp...

Journal: :journal of advances in computer engineering and technology 0
hossein barghi jond ahar branch, islamic azad university, ahar, iran adel akbarimajd faculty of electrical engineering, university of mohaghegh ardabili, ardabil, iran nurhan gürsel özmen department of mechanical engineering, karadeniz technical university, trabzon, turkey. sonia gharibzadeh ahar branch, islamic azad university, ahar, iran

this paper aims to discuss the requirements of safe and smooth trajectory planning of transporter mobile robots to perform non-prehensile object manipulation task. in non-prehensile approach, the robot and the object must keep their grasp-less contact during manipulation task. to this end, dynamic grasp concept is employed for a box manipulation task and corresponding conditions are obtained an...

ژورنال: مواد پرانرژی 2015

Recent studies in solid composite propellants indicate that acceleration field cause to increase in burning rate. Relation between acceleration field and burning rate of propellant have an important effect on missile systems ballistic, especially on perforated grain missiles. If these effects has neglected in design phase, the pressure-time profile shifted out of acceptable rage and result in i...

2003
Stefan Karsch Dietrich Habs Theodor W. Hänsch

Within the framework of this thesis the generation of neutrons using ultrashort laser pulses with moderate pulse energy was investigated. On the one hand, the aim was directed towards the development of a neutron source, whose optimization naturally calls for a detailed understanding of the underlying neutron production processes. Since the highest neutron yields are achieved by nuclear reactio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده شیمی 1389

in this project, some new polyaspartimides, (pas)s, have been synthesized form michael addition reaction between new synthetic bismaleimide (bmi) and some aromatic diamines. a characteristic property of this polyaspartimides is a pendent carboxylic group, which introduced to these polymers from new bismaleimide. bismaleimides (bmi) is one of the interesting compounds, which can be self-polymeri...

2015
G. P. Zank P. Hunana P. Mostafavi J. A. Le Roux Gang Li G. M. Webb O. Khabarova A. Cummings E. Stone R. Decker

Shock waves, as shown by simulations and observations, can generate high levels of downstream vortical turbulence, including magnetic islands. We consider a combination of diffusive shock acceleration (DSA) and downstream magnetic-island-reconnection-related processes as an energization mechanism for charged particles. Observations of electron and ion distributions downstream of interplanetary ...

Journal: :civil engineering infrastructures journal 0
hessamoddin meshkat razavi ph.d. candidate, department of civil engineering, faculty of engineering, ferdowsi university of mashhad, mashhad, iran hashem shariatmadar associated professor, department of civil engineering, faculty of engineering, ferdowsi university of mashhad, mashhad, iran

this study is investigated the optimum parameters for a tuned mass damper (tmd) under the seismic excitation. shuffled complex evolution (sce) is a meta-heuristic optimization method which is used to find the optimum damping and tuning frequency ratio for a tmd. the efficiency of the tmd is evaluated by decreasing the structural displacement dynamic magnification factor (ddmf) and acceleration ...

Journal: :international journal of civil engineering 0
m. miraboutalebi no. 21, arghavan st., farmanieh, dibaji, code: 1953714453 f. askari no. 21, arghavan st., farmanieh, dibaji, code: 1953714453 o. farzaneh tehran university, engineering faculty, civil engineering department

in this paper, the effect of bedrock inclination on seismic performance of slopes is investigated. the study was conducted based on dynamic analysis of different slopes, evaluation of the earthquake acceleration in sliding mass, and calculating the permanent displacement of the slope, using newmark sliding block. the investigation indicates that variation of the bedrock inclination may cause th...

Journal: :nutrition and food sciences research 0
mahshid jahadi kianoush khosravi-darani mohammad-reza ehsani aliakbar saboury alaleh zoghi kourosh egbaltab

background and objectives: fast proteolysis of cheese in ripening process may lead to the premature attack of casein, release of the majority of enzymes into the whey, and loss of cheese composition from curd to whey. in this study, the effect of liposomal flavourzyme on proteolysis of iranian white brined cheese, as well as on the yield and composition of whey and curd was investigated. materi...

2004
Antonio F. Rañada

As early as in 1907, Einstein showed that the light speed must be larger at spacetime points with higher gravitational potential. This idea is used here to present a relativistic version of a recent model which explains the acceleration of the Pioneer 10 spaceship as the effect of a universal adiabatic acceleration of light. This phenomenon would have the same observational signature as an acce...

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