disintegration process
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Author(s):  
Vera Yavir

The processes of ethnopolitical integration and disintegration in interconnection with modern realities, challenges and processes are studied. Within the framework of the dialectical approach, they are defined as components of a single multilevel integration-disintegration process. Ethnopolitical integration may contain features, characteristics of ethnopolitical disintegration, and the latter may have integration consequences, contributing to the consolidation of the nation and society, the preservation of territorial integrity. The preconditions and factors of ethnopolitical disintegration of Ukraine and the forthcoming reintegration taking into account foreign experience are studied.


2021 ◽  
pp. 0734242X2110637
Author(s):  
Federica Ruggero ◽  
Sara Belardi ◽  
Emiliano Caretti ◽  
Tommaso Lotti ◽  
Claudio Lubello ◽  
...  

The present research investigates the degradation rate of bioplastics under various composting conditions, including suboptimal ones. Lab-scale tests were carried out setting three variables: temperature (37°C–58°C), humidity (30%–60%) and duration of the thermophilic and the maturation phases (15–60 days). The composting tests were carried out following modified guideline ISO 20200:2015 and lasted for 60 days. Bioplastics in the synthetic waste matrix consisted of Mater-Bi® film biobags and PLA rigid teaspoons. A kinetic study was performed, resulting in faster degradation rates for film bioplastics (first-order kinetics with k = 0.0850–0.1663 d−1) than for rigid (0.0018–0.0136 d−1). Moreover, film bioplastics reached a complete degradation within the 60 days of the test. Concerning the rigid products, 90% degradation would be achieved in 2–3 years for mesophilic conditions. Finally, in the undersieve of 0.5 mm some microplastics were identified with the ImageJ software, mainly relatable to rigid (PLA) bioplastics. Overall, the results disclosed that the combination of mesophilic temperatures and absence of moistening slowed down both the degradation and the disintegration process of bioplastics.


2021 ◽  
Vol 11 (1) ◽  
pp. 24
Author(s):  
Jakub Szlęk ◽  
Adam Pacławski ◽  
Natalia Czub ◽  
Aleksander Mendyk

We obtained a curated database based on the database published elsewhere. Chemical descriptors were introduced as characteristics of active pharmaceutical ingredients (APIs). We used H2O AutoML platform in order to develop a Deep Learning model and SHAP method to explain its predictions. Obtained results were satisfactory with NRMSE of 8.1% and R2 of 0.84. Finally, we identified critical parameters affecting the process of disintegration of directly compressed ODTs.


Pharmaceutics ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 879
Author(s):  
Gailute Draksiene ◽  
Brigita Venclovaite ◽  
Lauryna Pudziuvelyte ◽  
Liudas Ivanauskas ◽  
Mindaugas Marksa ◽  
...  

The aim of the present investigation was to formulate fast disintegrating tablets of meloxicam by wet granulation technique using medium molecular weight chitosan. The orally disintegrating tablets of meloxicam with chitosan showed good mechanical and disintegration properties and good dissolution rate when prepared in tablet press using 10.8 kN and 11.0 kN compression force. Chitosan is a suitable biopolymer to moderate the disintegration process in orally disintegrating tablets.


2021 ◽  
Vol 03 (03) ◽  
pp. 1-1
Author(s):  
Fahriye Yağmur Bütün Buschalsky ◽  
◽  
Carsten Mai ◽  

A thermo-hydrolytic disintegration process qualifies as a promising option for recycling the waste MDF and preserving the fibrous morphology of the recovered lignocellulosic fibre material. This study aims to include a drainage process between the thermo-hydrolytic disintegration and the further utilization of the recovered fibres (RF) obtained using a screw press for removing the disintegration water (DW). In this context, the chemical properties of the RF (pH, nitrogen content, formaldehyde emissions) and the DW (pH, formaldehyde, reducing sugars and equivalents and nitrogen contents) were analyzed. Moreover, the RF material was utilized to produce recycled MDF panels, solely containing the RF (100%) and hence supplanting 50% of the virgin fibres (VF). The recycled MDF portrayed significant reductions in the internal bond strength (IB), and flexural properties (MOR, MOE): in the case of MDF made from 100% recycled fibres, about half the strength was reduced, and in the case of MDF made from 50% recycled fibres, the strength was reduced by 20-25%. The Thickness swelling (TS) of the recycled MDF panels was similar, while the water uptake (WA) was higher than that of the original MDF. The recycled MDF panels also exhibited a higher content of formaldehyde and emission. The findings recommend the application of a screw press process for prompter drainage of the RF and to utilize the RF obtained in combination with the VF to achieve adequate mechanical properties rather than using the RF separately for the manufacturing of the recycled MDF panels.


Author(s):  
Yaroslava Mudra

The article examines the economic effects of the Brexit as the disintegration process, which is affected trade. It is noted that Brexit is one of the largest manifestations of disintegration processes in the European Union for the entire period of its existensing. The main economic indicators of Great Britain before leaving the European Union are analyzed. They are GDP, inflation rate, GDP per capita based on PPP, GDP per capita, unemployment rate. Analogies are made during 10 years of the UK's membership in the EU and shows the change in the dynamics during the transition phase in 2020. The main causal links leding to the growth and decline of statistics are indicated. The analogies between the data of 2020 and during the previous 10 years are made. Data on the growth and decline of GDP in the United Kingdom according to the forecasts of a number of global investment banks such as the Swiss UBS, Bank of America and Barclays, Goldman Sachs and others. The problems are considered in the trade’relations between Great Britain and the EU, had arosed after the end of the transition period, The negative effects of imbalances and inconsistencies in the mechanisms of crossing customs borders in export-import activities after January 1, 2021 are presented. The main negative factors, factors and circumstances that were influenced the significant decline in export-import activity in early 2021 are substantiated. Graphic statistical trends of British exports and imports with EU and non-EU countries are shown graphically. The main problems that have arisen in logistics chains are considered and the reasons for their occurrence are analyzed. The statistical changes in the foreign trade balance of Great Britain in the first quarter are reflected. 2021 in comparison with the IV quarter. 2020 and the reasons for the decline are substantiated. A separate list of changes taking place in the field of trade from January 1, 2021 in such areas as customs control, trade conditions and the mechanism of excise tax. The main legislative and regulatory documents that regulated the sphere of trade before and after Brexit are highlighted.


2020 ◽  
Vol 851 ◽  
pp. 86-91
Author(s):  
Heru Suryanto ◽  
Muhamad Muhajir ◽  
Tito Arif Sutrisno ◽  
Uun Yanuhar ◽  
Redyarsa D. Bintara

Bacterial cellulose (BC) has applied as a versatile biomaterial in a wide variety of applications, such as biomedical devices, acoustics, electronics, and paper products. The controlling of the procedure could significantly improve the chemical and structure properties of the BC foams. This study aims to compare the features of BC foam that synthesized from BC disintegrated by a high-speed blender (HSB) and high-pressure homogenizer (HPH). The methods are the synthesis of BC using pineapple skin extract, disintegration process using both HSB and HPH following by freeze-drying process and characterization using X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), and FTIR. The results show that freeze-drying to the pellicle did not produce a foam structure of BC. SEM morphology indicates that the disintegration process using HPH produces a better porous BC foam compared than HBS process. XRD analysis shows three peaks associated with the structure of BC, which are at 14.47°, 16.85°, and 22.69°. The crystalline structure of BC foam produced from HPH process has higher than BC foam produced from HBS process. FTIR analysis shows that there is a new peak find out in BC foam after the disintegration process.


2020 ◽  
pp. 1-11 ◽  
Author(s):  
Monika Zubrowska-Sudol ◽  
Justyna Walczak ◽  
Agnieszka Garlicka ◽  
Katarzyna Sytek-Szmeichel ◽  
Katarzyna Umiejewska

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