Государственные закупки как механизм стимулирования производства инновационных товаров, работ и услуг

Отмечена существенная роль сферы государственного заказа в процессе формирования национальной институциональной среды, в том числе в развитии производства инновационных товаров, работ и услуг. Констатирована терминологическая неясность понятия инновационного товара, работы, услуги для целей государственных закупок. Проанализированы особенности институтов в сфере размещения государственных заказов и отмечено противодействие сложившейся в России системы закупок целям стимулирования производства инновационной продукции. Предложены меры выхода из сложившейся ситуации применительно к закупкам инновационных товаров, работ и услуг

Statistical analysis of the supply process of organization of the oil and gas industry

В статье рассмотрен алгоритм и статистические методы для проведения статистического анализа обеспечивающего процесса организации нефтегазовой отрасли.The article discusses an algorithm and statistical methods that can be used to conduct a statistical analysis of the supporting process of organizing the oil and gas industry

Acoustic absorber design

The aim of the Acoustic Absorber Project was to investigate the performance of a range of materials as acoustic absorbers. A literature search on acoustic absorbers was carried out first and is presented with a summary of commercially available absorbers in the Absorber Survey. Modifications were made to the Reverberation Room in the Department of Mechanical Engineering, University of Canterbury. Tests showed that the Room modifications and diffuser installation improved its sound field diffusivity and uniformity, ensuring reliable absorption measurements. Apparatus was then built and used to measure the flow resistance of porous materials. This equipment was pivotal to the successful specification of materials used as acoustic absorbers. More than fifty different absorbers were tested in the refurbished Reverberation Room to determine their absorption coefficients. Subsequent analysis was carried out to compare the different materials, thicknesses and systems used as absorbers. Various models were used and developed to predict the measured results. The models produced similar trends to the measured data but with lower absorption coefficients. It was found that tuned absorbers could be produced from CMSG foam with impervious films, giving high absorption in selected frequencies. Wideband absorbers could be made at low cost from low density foam, polyester or fibreglass with fabric coverings, each optimised for flow resistance. Contoured foams were also found to be very effective wideband absorbers. Optimal acoustic absorbers can now be designed and produced to satisfy different absorption requirements