scholarly journals К 125-летию со дня рождения лауреата Нобелевской премии академика Николая Николаевича Семенова Матричная конверсия природного газа в синтез-газ и водород как перспективное направление газохимии и энергетики

2021 ◽  
Vol 91 (5) ◽  
pp. 713
Author(s):  
В.С. Арутюнов ◽  
А.В. Никитин ◽  
Л.Н. Стрекова ◽  
В.И. Савченко ◽  
И.В. Седов ◽  
...  
Keyword(s):  
New Technology ◽  
Hydrocarbon Gases ◽  
Basic Principles ◽  
Oxidative Reforming ◽  
Kinetics Of

The basic principles of a new technology of non-catalytic oxidative reforming of hydrocarbon gases into syngas and hydrogen, based on the combustion of rich hydrocarbon-air or hydrocarbon-oxygen mixtures stabilized by the surface of a permeable matrix, are presented. The kinetics of the process, the prospects for its technological implementation and the most interesting applications are discussed.

scholarly journals Kinetics of slow release of nitrogen fertiliser from multi-layered nanofibrous structures

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Leila Javazmi ◽  
Anthony Young ◽  
Gavin J. Ash ◽  
Tobias Low
Keyword(s):  
Crop Production ◽  
Slow Release ◽  
New Technology ◽  
Single Layer ◽  
Middle Layer ◽  
Modern Agriculture ◽  
Triple Layer ◽  
Urea Release ◽  
Electrospun Nanofibres ◽  
Kinetics Of

AbstractFertilisers are essential in modern agriculture to enhance plant growth, crop production and product quality. Recent research has focused on the development of delivery systems designed to prolong fertiliser release. This study introduces a new technology to encapsulate and release molecules of fertilisers by using multi-layered electrospun nanofibre as a carrier. Single-layer poly L-lactic acid (PLLA) nanofibres loaded with urea were fabricated using electrospinning. Triple-layer nanofibrous structures were produced by electrospinning polyhydroxybutyrate (PHB) nanofibres as external layers with PLLA nanofibres impregnated with urea fertiliser as the middle layer. Scanning electron microscopy (SEM) and Fourier transform infrared spectrophotometry (FTIR) were employed to characterize the morphology of electrospun nanofibres. Urea release dynamic was analysed using a total nitrogen instrument (TNM-1). The results indicated that triple-layered urea-impregnated nanofibrous structures led to lower initial rate of nitrogen release and slower release rate of cumulative nitrogen which extended for more than three months. It is concluded that triple-layer nanofibrous structures have the potential for slow release delivery of fertilisers.

scholarly journals Platelet-Rich Plasma: Principles and Applications in Plastic Surgery

2019 ◽  
Vol 33 (03) ◽  
pp. 155-161 ◽  
Author(s):  
Amjed Abu-Ghname ◽  
Aurelia Trisliana Perdanasari ◽  
Matthew J. Davis ◽  
Edward M. Reece
Keyword(s):  
Plastic Surgery ◽  
Platelet Rich Plasma ◽  
New Technology ◽  
Clinical Applications ◽  
Great Promise ◽  
Clinical Settings ◽  
Skin Rejuvenation ◽  
Basic Principles ◽  
Reconstructive Plastic Surgery ◽  
Reconstructive Plastic

AbstractPlatelet-rich plasma (PRP) is an autogenously harvested liquid platelet concentrate extracted from a patient's peripheral blood that contains higher than baseline concentrations of growth factors and cytokines. This innovative new technology has demonstrated great promise in the field of plastic surgery, and its use has been evaluated in several clinical settings including wound healing, hair restoration, and skin rejuvenation. The goal of this article is to explain the biology behind PRP and to review the basic principles involved in its preparation. This will be followed by a discussion of some clinical applications of PRP in both aesthetic and reconstructive plastic surgery.

scholarly journals From Passive Support Systems to the NTT Active Support

1984 ◽  
Vol 79 ◽  
pp. 23-40
Author(s):  
R.N. Wilson ◽  
F. Franza ◽  
L. Noethe
Keyword(s):  
Support System ◽  
Support Systems ◽  
New Technology ◽  
Study Phase ◽  
Large Telescope ◽  
Basic Principles ◽  
Very Large Telescope ◽  
Primary Support

ESO has two telescope projects: the NTT (New Technology Telescope) with 3.5 m aperture and the VLT (Very Large Telescope) with 16 m equivalent aperture. The former is already in the engineering phase and should be completed in 1987; the latter is still in the study phase and will be described at this conference by our colleague, D. Enard.This paper is concerned with the primary support system of the NTT. The basic principles and layout of this support have already been described in the literature 1,2,3).

scholarly journals Four-Handed Dentistry Revisited

1999 ◽  
Vol 1 (4) ◽  
pp. 25-33 ◽  
Author(s):  
Betty Ladley Finkbeiner
Keyword(s):  
21St Century ◽  
New Technology ◽  
Stress And Strain ◽  
Basic Principles ◽  
Dental Office ◽  
Dental Profession ◽  
Increase Productivity ◽  
The 1950S

Abstract A great deal of new technology has been integrated into the modern dental office during the last several decades. However, no product can increase productivity and reduce stress and strain on the dental team as much as using the singular concept of four-handed dentistry. The research of the 1950s is undaunted in its impact on productivity. Combined with the practice of ergonomics in the workplace, this concept must be revisited by the dental profession. The young dentists of the 21st Century have had minimal exposure to true four-handed dentistry. This article, the first in a series, re-introduces the basic principles of a research-oriented concept.

scholarly journals Advances in Analysis of Milk Proteases Activity at Surfaces and in a Volume by Acoustic Methods

Sensors ◽  
2020 ◽  
Vol 20 (19) ◽  
pp. 5594 ◽  
Author(s):  
Mark Dizon ◽  
Marek Tatarko ◽  
Tibor Hianik
Keyword(s):  
State Of The Art ◽  
Enzyme Reaction ◽  
Ultrasonic Spectroscopy ◽  
Basic Principles ◽  
Current State ◽  
Acoustic Methods ◽  
Milk Gelation ◽  
Kinetics Of ◽  
Increased Activity

This review is focused on the application of surface and volume-sensitive acoustic methods for the detection of milk proteases such as trypsin and plasmin. While trypsin is an important protein of human milk, plasmin is a protease that plays an important role in the quality of bovine, sheep and goat milks. The increased activity of plasmin can cause an extensive cleavage of β-casein and, thus, affect the milk gelation and taste. The basic principles of surface-sensitive acoustic methods, as well as high-resolution ultrasonic spectroscopy (HR-US), are presented. The current state-of-the-art examples of the application of acoustic sensors for protease detection in real time are discussed. The application of the HR-US method for studying the kinetics of the enzyme reaction is demonstrated. The sensitivity of the acoustics biosensors and HR-US methods for protease detection are compared.

CONCEPTUAL FRAMEWORK OF “TURQUOISE ORGANIZATIONS” AND REALIZATION PROSPECTS IN PERSONNEL MANAGEMENT

2017 ◽  
Vol 6 (3) ◽  
pp. 5-11
Author(s):  
Чуланова ◽  
Oksana Chulanova
Keyword(s):  
New Technology ◽  
Pilot Project ◽  
Living System ◽  
Point Of View ◽  
Innovative Technology ◽  
Conceptual Basis ◽  
Place Making ◽  
Basic Principles ◽  
Advantages And Disadvantages ◽  
Single Organism

The experience of using turquoise organizations has long been used abroad. Turquoise organizations are the so-called “living” organizations, working on the principle of a single organism, a living system: flexibly reacting to the changes taking place, making decisions on an intuitive level and subtly feeling its internal and external processes. In working with the personnel of Russian organizations it is a new technology that is of interest from the point of view of theorists and practitioners. The article attempts to define the conceptual basis of this technology taking into account the principles, mechanisms and expected results of the functioning of turquoise organizations. The article presents the essence, basic principles of turquoise organizations. The advantages and disadvantages of this form of management interaction are indicated. The article presents the foreign experience of turquoise organizations and the pilot project of the Russian organization. The prospects of using this innovative technology in working with the staff of modern domestic organizations are indicated.

A New Technology of Producing Fe-TiC Powder by Mechanical Activation-Reductive Diffusion

2011 ◽  
Vol 199-200 ◽  
pp. 1813-1818
Author(s):  
Wei Li ◽  
Kang Sun
Keyword(s):  
Mechanical Activation ◽  
Ball Milling ◽  
Milling Time ◽  
New Technology ◽  
Time Intervals ◽  
Mixed Powder ◽  
Cost Efficient ◽  
Lower Temperature ◽  
Kinetics Of ◽  
Ball Milling Time

A lower-temperature and cost-efficient way is developed to produce Fe-TiC powders. Fe-TiC is produced by means of mechanical activation -reductive diffusion with ilmenite and graphite. The feasibility of this method and the kinetics of the carbothermic reduction are studied with both natural ilmenite and synthetic ilmenite, respectively. The result approved that Fe-TiC powder could be produced by this new technique; moreover, the particles were prominently diminished in size and activated after ball milling. No obvious reactions were detected when ball milling time was less than 8h by EPMA and XRD; however, the mixed powder of Fe and TiC was obtained after annealing for different time intervals. The kinetic study showed that the apparent activation energy of the reductive reaction decreased gradually with milling time due to mechanical activation, but this effect weakened after ball milling for 6h. As ascertained experimentally, the optimum ball milling time was between 4h and 6h.

scholarly journals Protein import and oxidative folding in the mitochondrial intermembrane space of intact mammalian cells

2013 ◽  
Vol 24 (14) ◽  
pp. 2160-2170 ◽  
Author(s):  
Manuel Fischer ◽  
Sebastian Horn ◽  
Anouar Belkacemi ◽  
Kerstin Kojer ◽  
Carmelina Petrungaro ◽  
...  
Keyword(s):  
Protein Oxidation ◽  
Mammalian Cells ◽  
Protein Import ◽  
Mitochondrial Protein ◽  
Intermembrane Space ◽  
Basic Principles ◽  
Oxidative Folding ◽  
Physiological Conditions ◽  
Mitochondrial Intermembrane Space ◽  
Kinetics Of

Oxidation of cysteine residues to disulfides drives import of many proteins into the intermembrane space of mitochondria. Recent studies in yeast unraveled the basic principles of mitochondrial protein oxidation, but the kinetics under physiological conditions is unknown. We developed assays to follow protein oxidation in living mammalian cells, which reveal that import and oxidative folding of proteins are kinetically and functionally coupled and depend on the oxidoreductase Mia40, the sulfhydryl oxidase augmenter of liver regeneration (ALR), and the intracellular glutathione pool. Kinetics of substrate oxidation depends on the amount of Mia40 and requires tightly balanced amounts of ALR. Mia40-dependent import of Cox19 in human cells depends on the inner membrane potential. Our observations reveal considerable differences in the velocities of mitochondrial import pathways: whereas preproteins with bipartite targeting sequences are imported within seconds, substrates of Mia40 remain in the cytosol for several minutes and apparently escape premature degradation and oxidation.

Sign in / Sign up

Export Citation Format

Share Document