Управление затратами как эффективный инструмент выхода предприятия из кризиса и альтернатива "экономии на людях"

В данной работе рассмотрен механизм последовательного повышения цен среди предприятий во время кризиса, обозначена склонность некоторых предприятий необдуманно сокращать затраты на персонал, обоснована необходимость использовать управление затратами как более эффективную альтернативу традиционной экономии затрат, рассмотрено понятие управления затратами как деятельность предприятия и набор методик, перечислены основные виды затрат и способы их оптимизации

Immobilization of an Artificial Imine Reductase within Silica Nanoparticles Improves its Performance

Silica nanoparticles equipped with an artificial imine reductase display remarkable activity towards cyclic imine- and NAD + reduction. The method, based on immobilization and protection of streptavidin on silica nanoparticles, shields the biotinylated metal cofactor against deactivation yielding over 46 000 turnovers in pure samples and 4000 turnovers in crude cellular extracts

Технологические решения для строительства разведочной вертикальной скважины глубиной 2950 метров на нефтяном месторождении (Тюменская область)

Цель работы – проектирование вертикальной разведочной скважины глубиной 2950 метров. В процессе работы был составлен проект на строительство вертикальной разведочной скважины на нефть глубиной 2950 м (по вертикали). Разработаны мероприятия по организации строительству, охране труда и окружающей среды. В работе рассмотрен вопрос технология установки клино-отклонителя.The purpose of the work is to design a vertical exploration well with a depth of 2,950 meters. In the process, a project was drawn up for the construction of a vertical exploration well for oil of 2950 m depth (vertical). Developed measures for the organization of construction, labor and environmental protection. The paper considers the issue of installation technology wedge-diverter

Biodegradation of mixture of plastic films by tailored marine consortia

Summarization: This work sheds light on the physicochemical changes of naturally weathered polymer surfaces along with changes of polymer buoyancy due to biofilm formation and degradation processes. To support the degradation hypothesis, a microcosm experiment was conducted where a mixture of naturally weathered plastic pieces was incubated with an indigenous pelagic community. A series of analyses were employed in order to describe the alteration of the physicochemical characteristics of the polymer (FTIR, SEC and GPC, sinking velocity)as well as the biofilm community (NGS). At the end of phase II, the fraction of double bonds in the surface of microbially treated PE films increased while changes were also observed in the profile of the PS films. The molecular weight of PE pieces increased with incubation time reaching the molecular weight of the virgin pieces (230,000 g mol−1)at month 5 but the buoyancy displayed no difference throughout the experimental period. The number-average molecular weight of PS pieces decreased (33% and 27% in INDG and BIOG treatment respectively), implying chain scission; accelerated (by more than 30%)sinking velocities compared to the initial weathered pieces were also measured for PS films with biofilm on their surface. The orders Rhodobacterales, Oceanospirillales and Burkholderiales dominated the distinct platisphere communities and the genera Bacillus and Pseudonocardia discriminate these assemblages from the planktonic counterpart. The functional analysis predicts overrepresentation of adhesive cells carrying xenobiotic and hydrocarbon degradation genes. Taking these into account, we can suggest that tailored marine consortia have the ability to thrive in the presence of mixtures of plastics and participate in their degradation. Παρουσιάστηκε στο: Journal of Hazardous Material

Investigation by thermodesorption spectroscopy of hydrogen accumulation features in Zr-1%Nb zirconium alloy during gas-phase hydrogenation

Modern trends in human development require more and more electricity to maintain the pace of economic and scientific development. One of the most environmentally friendly methods of electricity production is the use of nuclear power plants (NPPs). In connection with high impact on structural materials of nuclear power plants cores there is uncontrolled degradation of core material. Understanding the degradation processes will help predict and prevent various man-made disasters. The purpose of this work is to study the accumulation of hydrogen in the zirconium alloy Zr-1%Nb (E110). In this work, we studied the processes of hydrogen sorption and desorption by the zirconium alloy Zr-1%Nb

Cyclodextrin-based Combinatorial Polymers: Efficient Binders of Pharmaceuticals in Water

Cyclodextrins are cyclic oligomers of glucose; they are widely used in a large range of industrial applications because of their molecular inclusion properties. We used cyclodextrins to prepare different libraries of polymers and tested their ability to selectively recognize pharmaceuticals in water. It was demonstrated that the chemical composition of the polymer strongly influences its binding properties. The developed strategy can be used to produce selective sorbent nanomaterials of pharmaceuticals

Factors affecting the removal of organic micropollutants from wastewater in conventional treatment plants (CTP) and membrane bioreactors (MBR)

As a consequence of insufficient removal during treatment of wastewater released from industry and households, different classes of organic micropollutants are nowadays detected in surface and drinking water. Among these micropollutants, bioactive substances, e.g., endocrine disrupting compounds and pharmaceuticals, have been incriminated in negative effects on living organisms in aquatic biotope. Much research was done in the last years on the fate and removal of those compounds from wastewater. An important point it is to understand the role of applied treatment conditions (sludge retention time (SRT), biomass concentration, temperature, pH value, dominant class of micropollutants, etc.) for the efficiency of conventional treatment plants (CTP) and membrane bioreactors (MBR) concerning the removal of micropollutants such as pharmaceuticals, steroid- and xeno-estrogens. Nevertheless, the removal rates differ even from one compound to the other and are related to the ph ysico-chemical characteristics of the xenobiotics