синтез

Research and design of a matrix multiplier on FPGA

This paper presents a comprehensive investi- gation and hardware implementation of a multi-bit Brawn matrix multiplier architecture. The research focuses on analyzing the system characteristics of binary multipliers realized with both conventional and optimized full and half adders. Particular attention has been given to the applicability of such multipliers within arithmetic logic units (ALUs) for vector and scalar processing architectures. Analytical models have been formulated to quantify hardware resource utilization and computational latency across various logic base configurations.

Synthesis, Structure and Electrophysical Properties of Fluoride-Conducting Phases Вa1-XLaXSnF4+X

It has been determined that the concentration interval for the existence of solid solutions of heterovalent substitution $\mathrm{Ba}_{1-\mathrm{x}} \mathrm{La}_{\mathrm{x}} \mathrm{SnF}_{4+\mathrm{x}}$, which are formed by the partial replacement of barium cations with lanthanum cations in the $\mathrm{BaSnF}_4$ compound, is $0.0<x \leq 0.12$. The obtained phases are isostructural $\mathrm{BaSnF}_4$, have a crystal lattice of tetragonal syngony, corresponding to the $\mathrm{P} 4 / \mathrm{nmm}$ space group.

Synthesis of PI- and PID-Regulators in Control Systems Derived by the Feedback Linearization Method

The work proposes a comprehensive approach to the synthesis of the coefficients of PI- and PID-controllers, as well as the coefficients of feedback based on the state variables of the system, using the feedback linearization method for the synthesis of control influences. This approach considers not only the static but also the dynamic characteristics of the system, allowing for higher control accuracy. The feedback linearization method facilitates the transformation of nonlinear systems into linear ones, simplifying their further analysis and controller design.

Research and Design of Multibit Binary Adders on Fpga

This paper provides an analysis of the system characteristics and functional capabilities of various types of adders for the high-speed component construction of arithmetic and logical devices in modern superscalar processors. The main features of parallel prefix adders (Sklansky, Brent Kung, Kogge Stone, Ladner Fisher, Han Carlson) and tree-like structures based on incomplete binary adders have been determined in this study. The structures of typical and improved incomplete binary adders have been shown and their complexity characteristics have been calculated as well.

Дослідження та синтез кільцевих монолітних кодів на основі методу твірних елементів

Розроблено новий ефективний метод синтезу монолітних кодів, який ґрунтується на понятті твірного елемента циклічної різницевої множини, що розширює можливості вибору діапазону коду.

The new effective method of synthesis of monolithic codes, which is based on the concept of formative element of cyclic different set which extends possibilities of choice of range of code, is developed

Синтез моделі підсистеми пошуку стежок доступу до унітермів xml-формул алгоритмів

Синтезовано абстрактний алгоритм і його модель для віднаходження стежок доступу до унітермів, описаних спеціалізованим xml-форматом формул алгоритмів.

Synthesized abstract algorithm and model for finding paths access to uniterms of described specialized xml - format formulae of algorithms

Розроблення архітектури системи синтезу мікроелектромеханічних систем

Стаття присвячена розробленню архітектури системи, що доє змогу розробнику автоматизувати процес структурного синтезу МЕМС, використовуючи ситуативно базовану аргументацію.

This article is devoted to system architecture development, which solves MEMS structural synthesis tasks using case-based reasoning.

Methods of obtaining graphene

Graphene was first obtained at the beginning of the 21st century, and since then various methods have been developed for its synthesis. This variety is explained by the natural layered structure of graphite. A large number of methods is based on the idea of separating graphite layers. They are considered relatively cheap, productive and available in almost all laboratories.

Synthesis of Heterocyclic Pyridine-Based Chalcones with Dimeric Structure

Three new heterocyclic chalcones containing pyridine moiety were synthesized and their chemical structures were determined via IR, 1H NMR and 13C NMR spectroscopy. General name of these compounds are α,ω-bis{3-(pyridin-3-yl)-1-(phenyl-4-oxy)prop-2-en-1-one}alkanes. The chalcones are dimers having a symmetrical structure and they can be differed by the alkyl spacer length (CnH2n, where n = 8, 10 or 12). Differential scanning calorimetry (DSC) technique was employed to study their phase transition behaviors.

Electrosynthesis of Ni-Co/Hydroxyapatite as a Catalyst for Hydrogen Generation via the Hydrolysis of Aqueous Sodium Borohydride (NaBH4) Solutions

To generate hydrogen from its storage as NaBH4, a catalyst was synthesized via an electrochemical method. The catalyst, Ni-Co, had hydroxyapatite as a support catalyst. The electrochemical cell consisted of a DC power supply, a carbon anode and cathode, and a bipolar membrane to separate the cell into two chambers. The current density was adjusted to 61, 91, and 132 mA/cm2. The electrolysis time was 30, 60, and 90 min. The particles produced were analyzed by XRD and SEM/EDX and tested in the hydrolysis of NaBH4 for hydrogen generation.