Polynomial Response Surface Approximations for the Multidisciplinary Design Optimization of a High Speed Civil Transport

Surrogate functions have become an important tool in multidisciplinary design optimization to deal with noisy functions, high computational cost, and the practical difficulty of integrating legacy disciplinary computer codes. A combination of mathematical, statistical, and engineering techniques, well known in other contexts, have made polynomial surrogate functions viable for MDO. Despite the obvious limitations imposed by sparse high fidelity data in high dimensions and the locality of low order polynomial approximations, the success of the panoply of techniques based on polynomial response surface approximations for MDO shows that the implementation details are more important than the underlying approximation method (polynomial, spline, DACE, kernel regression, etc.). This paper surveys some of the ancillary techniques—statistics, global search, parallel computing, variable complexity modeling—that augment the construction and use of polynomial surrogates

Comment on “The diatomic dication CuZn2+ in the gas phase” [J. Chem. Phys. 135, 034306 (2011)]

In this Comment, the density functional theory (DFT) calculations carried out by Diez et al. [J. Chem. Phys. 135, 034306 (2011)10.1063/1.3613624] are revised within the framework of the coupled-cluster single double triple method. These more sophisticated calculations allow us to show that the 2Σ+ electronic ground state of CuZn2+, characterized as the metastable ground state by DFT calculations, is a repulsive state instead. The 2Δ and 2Π metastable states of CuZn2+, on the other hand, should be responsible for the formation mechanism of the dication through the near-resonant electron transfer CuZn+ + Ar+ → CuZn2+ + Ar reaction.Fil: Pis Diez, Reinaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Centro de Química Inorgánica "Dr. Pedro J. Aymonino". Universidad Nacional de La Plata. Facultad de Ciencias Exactas. Centro de Química Inorgánica "Dr. Pedro J. Aymonino"; ArgentinaFil: Franzreb, Klaus. Arizona State University; Estados UnidosFil: Alonso, Julio A.. Universidad de Valladolid; Españ

Gravity compensation in complex plasmas by application of a temperature gradient

Micron sized particles are suspended or even lifted up in a gas by thermophoresis. This allows the study of many processes occurring in strongly coupled complex plasmas at the kinetic level in a relatively stress-free environment. First results are presented. The technique is also of interest for technological applications.Comment: 4 pages, 4 figures, final version to be published in Phys. Rev. Let

Population of isomers in decay of the giant dipole resonance

The value of an isomeric ratio (IR) in N=81 isotones ($^{137}$Ba, $^{139}$Ce, $^{141}$Nd and $^{143}$Sm) is studied by means of the ($\gamma, n)$ reaction. This quantity measures a probability to populate the isomeric state in respect to the ground state population. In ($\gamma, n)$ reactions, the giant dipole resonance (GDR) is excited and after its decay by a neutron emission, the nucleus has an excitation energy of a few MeV. The forthcoming $\gamma$ decay by direct or cascade transitions deexcites the nucleus into an isomeric or ground state. It has been observed experimentally that the IR for $^{137}$Ba and $^{139}$Ce equals about 0.13 while in two heavier isotones it is even less than half the size. To explain this effect, the structure of the excited states in the energy region up to 6.5 MeV has been calculated within the Quasiparticle Phonon Model. Many states are found connected to the ground and isomeric states by $E1$, $E2$ and $M1$ transitions. The single-particle component of the wave function is responsible for the large values of the transitions. The calculated value of the isomeric ratio is in very good agreement with the experimental data for all isotones. A slightly different value of maximum energy with which the nuclei rest after neutron decay of the GDR is responsible for the reported effect of the A-dependence of the IR.Comment: 16 pages, 4 Fig

Diagnostics of innovative culture of Ukrainian society

The relevance of the research is the need to increase the efficiency of managing the innovative culture of society as a mechanism of socio-cultural regulation of innovative human behavior, which is the basis of innovative and favorable environment-higher state, forms the prerequisites for the transition to an innovative path of development. The purpose of the research is to improve and practically test the system of management of the innovative culture of society based on the results of diagnostics of its condition. The theoretical and methodical approach to the diagnostics of the state as a subsystem of purposeful management of innovative culture of society is improved. Diagnostics of the state and dynamics of the development of the innovative culture of Ukraine, as a whole, and its individual components and their elements for the period 2013-2019 (the period of active political and socio-economic transformations) was performed. A set of practical-oriented recommendations for ensuring the proper level of individual elements and constituents of the innovative culture of the Ukrainian society is proposed. It is substantiated that the practical implementation of the obtained results will help to increase the level of innovative culture of society as one of the main elements of formation of an innovative and favorable environment of the state, which, in its turn, creates prerequisites for innovative development of the Ukrainian economy in line with the concept of innovative advancement. The theoretical, methodological and methodical foundations of innovative management at the state level have been deepened in terms of improving the system of diagnostics and management according to its results by developing the innovative culture of society.Актуальність дослідження полягає у необхідності підвищення ефективності управляння інноваційною культурою суспільства як механізму соціально-культурного регулювання інноваційної поведінки людини, що є основою інноваційно-сприятливого середовища держави, формує передумови переходу на інноваційний шлях розвитку. Метою дослідження є удосконалення і практична апробація системи управління інноваційною культурою суспіль-ства за результатами діагностики її стану. Удосконалено теоретико-методичний підхід до ді-агностики стану як підсистеми цілеспрямованого управління інноваційною культурою сус-пільства. Виконана діагностика стану і динаміки розвитку інноваційної культури України як у цілому, так і за окремими її складовими та їх елементами за період 2013-2019 рр. (період активних політичних та соціально-економічних трансформацій). Запропоновано комплекс практично-орієнтованих рекомендацій щодо забезпечення належного рівня окремих елемен-тів і складових підсистем інноваційної культури українського суспільства. Обґрунтовано, що практична реалізація отриманих результатів сприятиме підвищенню рівня інноваційної культури суспільства як одного з головних елементів формування інноваційно-сприятливого середовища держави, що, в свою чергу, створює передумови інноваційного розвитку економіки України в руслі концепції інноваційного випередження. Поглиблено теоретико-методологічні і методичні засади інноваційного менеджменту на рівні держави в частині удосконалення системи діагностики і управління за її результатами розвитком інноваційної культури суспільства

Studies of proteinograms in dermatophytes by disc electrophoresis. 1. Protein bands in relation to growth phase

Homogenates were prepared from various growth phases of Microsporum gypseum grown on different amino acids as the nitrogen source. When analyzed on 7.5% polyacrylamide disc gels, the water-soluble proteins in these homogenates gave essentially identical banding patterns