A low-temperature gold coating of the dielectric surfaces employing phosphine gas as a reducing agent

The technology of applying the gold film on the dielectric surface, based on the low-temperature reduction of the superficial sorption layer of gold chloride by phosphine gas, was developed. The sorption layer was obtained by immersing the product in a solution of gold chloride. The thickness of the coating depended on the concentration of the gold chloride solution. Adding copper chloride a film of gold-copper phosphide can be obtained. To give functional properties to the film, non-metallic particles were incorporated in the film. So when diamond particles sprayed on the wetted gold chloride surface, a gold–diamond coating was obtained containing 4.25% of diamond

Alteration of the phospho- or neutral lipid content and fatty acid composition in Listeria monocytogenes due to acid adaptation mechanisms for hydrochloric, acetic and lactic acids at pH 5.5 or benzoic acid at neutral pH

This study provides a first approach to observe the effects on Listeria monocytogenes of cellular exposure to acid stress at low or neutral pH, notably how phospho- or neutral lipids are involved in this mechanism, besides the fatty acid profile alteration. A thorough investigation of the composition of polar and neutral lipids from L. monocytogenes grown at pH 5.5 in presence of hydrochloric, acetic and lactic acids, or at neutral pH 7.3 in presence of benzoic acid, is described relative to cells grown in acid-free medium. The results showed that only low pH values enhance the antimicrobial activity of an acid. We suggest that, irrespective of pH, the acid adaptation response will lead to a similar alteration in fatty acid composition [decreasing the ratio of branched chain/saturated straight fatty acids of total lipids], mainly originating from the neutral lipid class of adapted cultures. Acid adaptation in L. monocytogenes was correlated with a decrease in total lipid phosphorus and, with the exception of cells adapted to benzoic acid, this change in the amount of phosphorus reflected a higher content of the neutral lipid class. Upon acetic or benzoic acid stress the lipid phosphorus proportion was analysed in the main phospholipids present: cardiolipin, phosphatidylglycerol, phosphoaminolipid and phosphatidylinositol. Interestingly only benzoic acid had a dramatic effect on the relative quantities of these four phospholipids

Town Of Great Barrington, Massachusetts Annual Reports For The Fiscal Year 2016 July 1, 2015 to June 30, 2016

SABRE (Sodium-iodide with Active Background REjection) is a direct dark matter search experiment based on an array of radio-pure NaI(Tl) crystals surrounded by a liquid scintillator veto. Twin SABRE experiments in the Northern and Southern Hemispheres will differentiate a dark matter signal from seasonal and local effects. The experiment is currently in a Proof-of-Principle (PoP) phase, whose goal is to demonstrate that the background rate is low enough to carry out an independent search for a dark matter signal, with sufficient sensitivity to confirm or refute the DAMA result during the following full-scale experimental phase. The impact of background radiation from the detector materials and the experimental site needs to be carefully investigated, including both intrinsic and cosmogenically activated radioactivity. Based on the best knowledge of the most relevant sources of background, we have performed a detailed Monte Carlo study evaluating the expected background in the dark matter search spectral region. The simulation model described in this paper guides the design of the full-scale experiment and will be fundamental for the interpretation of the measured background and hence for the extraction of a possible dark matter signal

Система технического зрения распознавания дефектов яблок: обоснование, разработка, испытание

The most rational method for identifying the quality of fruits is the optical method using PPE, which has the accuracy and stability of measurement, as well as distance and high productivity. The paper presents classification of fruit quality recognition systems and substantiates the design and technological scheme of the vision system for sorting them, consisting of an optical module with installed structural illumination and a video camera, an electronic control unit with an interface and actuators for the sorter and conveyor for fruits. In the course of the study, a single-stream type of fruit flow in PPE with forced rotation was substantiated, a structural and technological scheme of an STZ with a feeding conveyor, an optical module and a control unit, an algorithm for functioning of the STZ software was developed based on algorithm for segmentation of fruit colors, tracking algorithm, etc. deep learning ANN, which provide recognition of the size and color of fruits, as well as damage from mechanical stress, pests and diseases. The developed STZ has been introduced into the processing line for sorting and packing apples, LSP-4 has successfully passed preliminary tests and production tests at OJSC Ostromechevo. In the course of preliminary tests of the LSP-4 line, it was found that it provided fruit recognition with a probability of at least 95%, while the labor productivity made 2.5 t/h.Наиболее рациональным методом идентификации качества плодов является оптический метод с использованием СИЗ, обладающий точностью и стабильностью измерения, а также дистанционностью и высокой производительностью. В статье представлена классификация систем распознавания качества плодов и обоснована конструктивно-технологическая схема системы технического зрения для их сортировки, состоящая из оптического модуля с установленной структурной подсветкой и видеокамерой, электронного блока управления с интерфейсом и исполнительными механизмами сортировщика и конвейера для плодов. В процессе исследования обоснованы однопоточный тип потока плодов в СИЗ с принудительным их вращением, конструктивно-технологическая схема СТЗ с питающим конвейером, оптическим модулем и блоком управления, разработано программное обеспечение СТЗ на основе алгоритма сегментации цветов плодов, алгоритма трекинга и глубокого обучения ИНС, обеспечивающее распознавание размеров и цветов плодов, а также повреждений от механического воздействия, вредителей и болезней. Разработанная СТЗ внедрена в технологическую линию сортировки и фасовки яблок, ЛСП-4 успешно прошла предварительные испытания и производственную проверку в ОАО «Остромечево». В ходе предварительных испытаний линии ЛСП-4 установлено, что она обеспечивает распознавание плодов с вероятностью не менее 95 %, при этом производительность труда составляет 2,5 т/

Search for Chelyabinsk Meteorite Fragments in Chebarkul Lake Bottom (GPR and Magnetic Data)

The paper summarizes experimental efforts of the Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (IZMIRAN) undertaken in search of the biggest part of Chelyabinsk meteorite in the bottom of lake Chebarkul, South Ural, Russia, and to estimate the ecological effects of its subsequent excavation