Kinetics of inactivation of staphylolytic enzymes: Qualitative and quantitative description

Biochimie ◽  
2019 ◽  
Vol 162 ◽  
pp. 77-87
Author(s):  
Lyubov Filatova ◽  
David Donovan ◽  
Steven Swift ◽  
Vladimir Pugachev ◽  
Georgy Emelianov ◽  
...  
Keyword(s):  
Quantitative Description ◽  
Qualitative And Quantitative ◽  
Kinetics Of

High-resolution observations of metastable γ’ precipitation in Al-15at.%Ag

1996 ◽  
Vol 54 ◽  
pp. 1004-1005
Author(s):  
N. V. Larcher ◽  
I. G. Solorzano
Keyword(s):  
Discontinuous Precipitation ◽  
Equilibrium Phase ◽  
Quantitative Description ◽  
Present Contribution ◽  
Α Phase ◽  
The Matrix ◽  
Aging Sequence ◽  
Matrix Precipitation ◽  
Considerable Detail ◽  
Kinetics Of

It is currently well established that, for an Al-Ag alloy quenched from the α phase and aged within the metastable solvus, the aging sequence is: supersaturated α → GP zones → γ’ → γ (Ag2Al). While GP zones and plate-shaped γ’ are metastable phases, continuously distributed in the matrix, formation of the equilibrium phase γ takes place at grain boundaries by discontinuous precipitation (DP). The crystal structure of both γ’ and γ is hep with the following orientation relationship with respect to the fee α matrix: {0001}γ′,γ // {111}α, <1120>γ′,γ, // <110>α.The mechanisms and kinetics of continuous matrix precipitation (CMP) in dilute Al-Ag alloys have been studied in considerable detail. The quantitative description of DP kinetics, however, has received less attention. The present contribution reports the microstructural evolution resulting from aging an Al-Ag alloy with Ag content higher than those previously reported in the literature, focusing the observations of γ' plate-shaped metastable precipitates.

scholarly journals Dependence of track etching kinetics on chemical reactivity around the ion path

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
S. A. Gorbunov ◽  
R. A. Rymzhanov ◽  
A. E. Volkov
Keyword(s):  
Chemical Reactivity ◽  
Quantitative Description ◽  
Sample Surface ◽  
Numerical Approach ◽  
Heavy Ion ◽  
Ion Trajectory ◽  
Track Etching ◽  
Wet Chemical ◽  
Kinetics Of ◽  
Account Variation

Abstract Etching kinetics of swift heavy ions (SHI) tracks in olivine is investigated in frame of experimentally verified numerical approach. The model takes into account variation of induced chemical reactivity of the material around the whole ion trajectory with the nanometric accuracy. This enables a quantitative description of wet chemical etching of SHI tracks of different lengths and orientations towards to the sample surface. It is demonstrated that two different modes of etching, governed by diffusion of etchant molecules and by their reaction with the material must be observed in experiments using techniques with different resolution thresholds. Applicability limits of the optical microscopy for detection of heavy ion parameters by measuring of the lengthwise etching rates of the ion track are discussed.

Mixing and Segregation Processes in Turbula Blender

2000 ◽  
Vol 627 ◽  
Author(s):  
Nathalie Sommier ◽  
Patrice Porion ◽  
Pierre Evesque
Keyword(s):  
Rotation Speed ◽  
Mixing Time ◽  
Qualitative And Quantitative Analysis ◽  
Resonance Imaging ◽  
Mixing Processes ◽  
Segregation Index ◽  
Qualitative And Quantitative ◽  
Magnetic Resonance Imaging Mri ◽  
Different Diameters ◽  
Kinetics Of

ABSTRACTMagnetic Resonance Imaging (MRI) technique was used to study the mixing and segregation processes of granular materials in a sophisticated tumbling blender (Turbula® mixer) using binary mixtures of sugar beads of different diameters d. Its motion generates mixtures with complex patterns. Effects of some parameters (beads diameter ratio, rotation speed, mixing time) were checked on segregation and mixing processes. We report in this paper, a qualitative and quantitative analysis of these phenomena. A segregation index S was defined to study the homogeneity and the kinetics of the mixing/segregation processes. When the ratio of bead diameters dmax/dmin is approximately 1, mixing process is observed but segregation occurs as soon as dmax/dmin is greater than 1.1.

scholarly journals Use of the transpiration method to study polonium evaporation from liquid lead-bismuth eutectic at high temperature

2014 ◽  
Vol 102 (12) ◽  
Author(s):  
Borja Gonzalez Prieto ◽  
Alessandro Marino ◽  
Jun Lim ◽  
Kris Rosseel ◽  
Johan Martens ◽  
...  
Keyword(s):  
Liquid Lead ◽  
Driven Systems ◽  
Qualitative And Quantitative ◽  
Transpiration Method ◽  
Equilibrium And Kinetics ◽  
Quantitative Understanding ◽  
Safety Assessments ◽  
Lead Bismuth Eutectic ◽  
Accelerator Driven Systems ◽  
Kinetics Of

AbstractQualitative and quantitative understanding of Po volatilization under different conditions is of key importance for safety assessments of lead-bismuth eutectic (LBE) based nuclear reactors, spallation targets and accelerator driven systems. In this work we explore the possibilities of the transpiration method in combination with simple models to study the equilibrium and kinetics of Po evaporation from highly diluted solutions in lead-bismuth eutectic between 600 and 1000 ℃ in Ar/5% H

A review of the ecology of the deep-water pelagic fauna of the Rockall Trough

1986 ◽  
Vol 88 ◽  
pp. 145-157
Author(s):  
J. Mauchline
Keyword(s):  
Deep Water ◽  
Quantitative Description ◽  
Demersal Fish ◽  
Historical Account ◽  
Production Rates ◽  
Qualitative And Quantitative ◽  
The North ◽  
Rockall Trough

SynopsisA brief historical account of the early faunal investigations is given. Modern studies concentrate on qualitative and quantitative description and interpretation of the processes taking place within the Rockall Trough. Demographic analyses are feasible on a variety of species allowing estimation of growth and production rates. The pelagic fauna impinges on the benthopelagic environments of the slope regions of the Trough. There it is predated by populations of demersal fish. Advection of fauna takes place to the north and northeast, probably primarily in the slope current.

Aerial pursuit flights in the shoveler

1974 ◽  
Vol 52 (12) ◽  
pp. 1473-1480 ◽  
Author(s):  
Norman R. Seymour
Keyword(s):  
Breeding Season ◽  
Quantitative Description ◽  
Wild Birds ◽  
Flight Behavior ◽  
Territorial Defense ◽  
Qualitative And Quantitative ◽  
Active Mechanism ◽  
Seasonal Basis ◽  
Males And Females

Analysis of 266 pursuit flights of wild birds provided a qualitative and quantitative description of aspects of this phenomenon. Flight behavior and frequency were analyzed for the general prelaying, laying, incubation, and renesting periods.Flight behavior of pursued males and females and that of the pursuing male varied little throughout the breeding season. No difference was detected on a daily basis.Flight frequency was greatest during the morning (0500 to 1000 h) period throughout the season. On a seasonal basis, frequency was greatest during territory establishment and declined after general incubation began. Another peak of activity occurred during the renesting period. Frequency during all periods reflected the number of non-territorial pairs interacting with territorial pairs.Attempted rape and associated flight was rare, with most flights apparently resulting from hostility associated with territorial defense. The pursuer was invariably a territorial male.The pursuit flight functioned in the establishment and maintenance of territories and was the major active mechanism in the spacing of breeding pairs.

scholarly journals PENERAPAN MODEL PEMBELAJARAN LRD (LISTEN, READ AND DISCUSS) UNTUK MENINGKATKAN KETERAMPILAN MEMBACA SISWA KELAS X IPA 2 SMAN 1 PRINGGARATA

2021 ◽  
Vol 1 (2) ◽  
pp. 149-158
Author(s):  
JUPRI JUPRI
Keyword(s):  
High School ◽  
Action Research ◽  
Learning Process ◽  
Teaching And Learning ◽  
Quantitative Description ◽  
Reading Skill ◽  
Qualitative Description ◽  
Qualitative And Quantitative ◽  
Tenth Grade ◽  
Written Test

This study concerns with Listen Read Discuss (LRD) to promote students’ reading skill. The aim of this study was to promote students’ reading skill through (LRD) technique . In this study, the researcher used classroom action research in which the datas were described in qualitative and quantitative description using the instruments of observation checklist, test and documentation. Observation was conducted to know the implementation of (LRD) technique during teaching and learning process and its datas were decribed in qualitative description, while test used to measure the students’ achievement in reading skill in form of a written test and described in quatitative description. Subject of this study was tenth- grade of SMAN 1 Pringgarata which consists of 30 students.This study was conducted in two cycles, each cycle consisted of 4 steps such as: planning, acting, observing and reflecting. The result of this research showed that (LRD) technique could promote students’ reading skill. It could be seen from the significant improvement of result in each cycle. The average of students’ score before implementing the strategy was 47, and increased into 61 in the first cycle . After doing treatment and it increased into 81 in second cycle. It means, students’ reading skill was improved and successful by applying (LRD) technique at the tenth-grade of senior high school, SMAN 1 Pringgarata. ABSTRAKPenelitian ini fokus untuk mengkaji penerapan model pembelajaran LRD (Learn Read Discuss) untuk meningkat keterampilan membaca siswa. Tujuan dari penelitian ini adalah untuk memaparkan perencanaan, pelaksanaan dan evaluasi peningkatan keterampilan membaca pada siswa kelas X IPA 2 SMA Negeri 1 Pringgarata dengan menggunakan model pembelajaran LRD (Listen Read Discuss). Penelitian ini merupakan penelitian tindakan kelas (PTK) yang datanya dipaparkan melalui data deskripsi kualitatif dan kuantitatif. Penelitian ini dilaksanakan dalam dua siklus. Setiap siklus terdiri dari atas 4 tahap yaitu: tahap perencanaan, pelakasanaan (tindakan), observasi dan refleksi. Data proses pembelajaran setiap siklus dianalisis secara deskriptif kualitatif sedangkan data hasil pembelajaran dianalisis secara deskriptif kuantitatif. Subjek penelitian ini adalah siswa kelas X IPA 2 yang berjumlah 30 orang. Hasil penelitian sebelum diterapkan LRD adalah 47,00 setelah dilakukan tindakan menunjukkan bahwa nilai yang diperoleh siswa pada siklus I meningkat menjadi 61,00 dan pada siklus II mencapai 81,00. Nilai prolehan ini sudah melampaui angka KKM yang diisyaratkan pada mata pelajaran bahasa Inggris di kelas X SMAN 1 Pringgarata Tahun Pelajarn 2021/2022 yaitu 75. Hasil penelitian menunjukkan bahwa pembelajaran dengan model LRD dapat meningkatkan keterampilan membaca, khusunya keterampilan membaca jenis teks rcount, siswa kelas X IPA2 SMA Negeri 1 Pringgarata.

scholarly journals The Methanol Adsorption in Microporous Alumina Agglomerates

2019 ◽  
Vol 3 (1) ◽  
pp. 22
Author(s):  
Grygorii Dragan ◽  
Volodymyr Kutarov ◽  
Mykola Poletaiev ◽  
Kyrylo Kolesnykov ◽  
Mariya Khlebnikova
Keyword(s):  
Aluminum Oxide ◽  
Adsorption Equilibrium ◽  
Capillary Condensation ◽  
Quantitative Description ◽  
Gas Dispersion ◽  
Volume Filling ◽  
Qualitative And Quantitative ◽  
Methanol Adsorption ◽  
Adsorption Desorption ◽  
Open Slit

We have studied theoretical and experimental methods of methanol adsorption in micropores of aluminum oxide agglomerates obtained by gas-dispersion synthesis. It is shown that the necessity to use strict equations based on the theory of volume filling of micropores, which implies a physical and formal analogy between the volume filling of micropores and capillary condensation, for qualitative and quantitative description of adsorption equilibrium in open slit-like micropores. The applicability of the proposed equations for the description of adsorption equilibrium in such systems is demonstrated on the example of experimental methanol adsorption/desorption isotherm on the aluminum oxide, which possesses a microporous structure.

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