Orbit determination

Part 2 book "Aerospace engineering pocket reference" included contents: Mechanics of materials, fluid mechanics, thermodynamics, heat transfer, EM radiation, electric circuits, control systems, aerodynamics, aircraft performance, air‐breathing propulsion, rocket propulsion, orbital mechanics, attitude determination, attitude dynamics,... and other contents.

270p dianmotminh04 12-07-2024 1 0   Download

Photovoltaic energy sources are increasingly in demand due to the cost of petroleum fuels and concerns about carbon emissions. For this reason, it is important to determine the photovoltaic properties of the compounds that are thought to be suitable for these energy sources. Here, 1,1,2,3,4,5-Hexaphenyl-1H-silole (HPS) and 1,1,2,3,4,5-Hexaphenyl-1H-germole (HPG) compounds that are thought to have excellent photovoltaic properties, electronic and charge transport properties were investigated experimentally and theoretically.

13p lyhuyenthu 31-01-2023 2 2   Download

Constant Wo, defining the geoid, has important applications in the area of physical geodesy. With the development of artificial Earth satellite, constant Wo for the global geoid approximating the oceans on Earth can be calculated from an expansion of spherical harmonics - Stokes constants determined by observation of perturbations in artificial satellite’s orbits.

7p vipagani 24-10-2022 3 3   Download

(BQ) Ebook Orbital mechanics for engineering students: Part 1 presents the following content: Chapter 1 dynamics of point masses, chapter 2 the two-body problem, chapter 3 orbital position as a function of time, chapter 4 orbits in three dimensions, chapter 5 preliminary orbit determination, chapter 6 orbital maneuvers.

331p runordie6 10-08-2022 6 3   Download

Optical properties of silver Agn nanoclusters are demonstrated to be dependent on their size, structure and charge state. It is found that when being contained in the sodalite cavity of LTA zeolite the tetradecanuclear hexacation silver cluster Ag146+ is stable. Its lower-lying states and optical spectrum are theoretically determined using the quantum chemical TD-DFT method. Its ground state possesses an outer-shell electron configuration of A1g2 T2g6 mimicking the s2 p6 valence of noble gas atoms.

12p runordie3 27-06-2022 17 2   Download

Comparison between the calculated and experimental results covering molecular structures, assignment of fundamental vibrational modes, and thermodynamic properties were investigated. The optimized molecular geometries were compared with the experimental data obtained from X-ray data of a similar complex, which indicated that the theoretical results agree with the corresponding experimental values. The UV-Vis spectrum of the compound was also recorded and some properties, such as HOMO and LUMO energies and λmax , were determined using DFT (PW91) method.

12p langthannam 29-12-2021 20 0   Download

A series of solution processable, wide band-gap host materials composed of carbazole and tetraphenylsilane groups were designed and synthesized. Their thermal, electrochemical, and photophysical properties were fully investigated. The introduction of bulky tetraphenylsilane and tert-butyl groups around the carbazole led to high glass transition temperatures (Tg) between 120 and 204◦C. The triplet energies (ET) of the synthesized materials were examined by low temperature (77 K) photoluminescence studies and determined as E T > 2.6 for all compounds.

24p langthannam 29-12-2021 7 0   Download

Lecture General Chemistry 1 - Chapter 9: Molecular Geometries and Bonding Theories. After studying this section will help you understand: predict the three-dimensional shapes of molecules using the VSEPR model; determine whether a molecule is polar or nonpolar based on its geometry and the individual bond dipole moments,...

28p diepchilang 26-08-2021 14 2   Download

Ebook Space flight dynamics: Part 1 present content historical overview; two-body orbital mechanics; orbit determination; time of flight; non-keplerian motion; rocket performance.

260p kethamoi6 01-07-2020 7 1   Download

In search of new ways to improve catalyst design, the current research focused on using quantum mechanical descriptors to investigate the effect of proline as a catalyst for mechanism and rate of asymmetric aldol reaction. A plausible mechanism of reaction between acetone and 4-nitrobenzaldehyde in acetone medium was developed using highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energies calculated via density functional theory (DFT) at the 6-31G⁄/ B3LYP level of theory.

9p trinhthamhodang1 14-11-2019 18 1   Download

With one (Poincare section) parameter and a particular motiom law (that associated to certain determined point of horno-heteroclinic orbits), the usual f'orm of' the llelni kov f'unction seems to be not convenient f'or certain problems. Another favourable form can be obtained by using a supplementary parameter - the arbitrary time constant in the general mentioned motion law.

7p thienthanquydu 21-10-2018 14 1   Download

The scattering amplitude of polarized nucleons has been found within the framework of the Klein – Gordon with the phenomenological spin - orbit potential. It has the Glauber type representation. The differential cross sections of polarized nucleon are considered and discussed. The Yukawa potential is applied for this problem to determine the polarization of high energy scattering nucleons.

12p truongtien_09 08-04-2018 23 1   Download

Chapter 15 - Conjugated systems, orbital symmetry, and ultraviolet spectroscopy. In this chapter, we consider the unique properties of conjugated systems, the theoretical reasons for this extra stability, and some of the characteristic reactions of molecules containing conjugated double bonds. We also study ultraviolet spectroscopy, a tool for determining the structures of conjugated systems.

56p tangtuy02 11-03-2016 40 3   Download

Chapter 16 introduce to aromatic compounds. This chapter determine whether Hückel’s rule applies to a given structure, and predict whether the compound will be aromatic, antiaromatic, or nonaromatic; show how to construct the molecular orbitals of a conjugated cyclic system similar to benzene and cyclobutadiene;...

59p tangtuy02 11-03-2016 48 3   Download

“Advances in Spacecraft Systems and Orbit Determinations”, discusses the development of new technologies and the limitations of the present technology, used for interplanetary missions. Various experts have contributed to develop the bridge between present limitations and technology growth to overcome the limitations. Key features of this book inform us about the orbit determination techniques based on a smooth research based on astrophysics.

276p qsczaxewd 22-09-2012 74 11   Download

FOR VSAT NETWORKS 2 USE OF SATELLITES It isnot so important for someonewho is interested in VSAT networks to know a lot about satellites. However,a number of factors relative tosatellite orbiting and satellite-earth geometry influencethe operation and performance of VSAT networks. For instance, the relative position of the satellite with respect to the VSAT at a given instant determines the orientation of the VSAT antenna and also the carrier propagation delay value.

32p tienvovan 18-09-2010 109 29   Download