Reconstructing agro-pastoral practice in the Mesopotamian-Zagros borderlands: Insights from phytolith and FTIR analysis of a dung-rich deposit

The purpose of this research is to synthetize, characterize and thermal degradation of new heterolytic derivates with potential biological properties. The derivates synthesis was done by obtaining new molecules with pyralozone structure which combine two pharmacophore entities: the amidosulfonyl-R1,R2 phenoxyacetil with the 3,5-dimethyl pyrazole which can have potential biological properties. The synthesis stages of the new products are presented as well as the elemental analysis data and IR, 1H-NMR spectral measurements made for elucidating the chemical structures and thermostability study which makes evident the temperature range proper for their use and storage. The obtained results were indicative of a good correlation of the structure with the thermal stability as estimated by means of the initial degradation temperatures as well as with the degradation mechanism by means of the TG-FTIR analysis.

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Preliminary Phytochemical Screening and FTIR Analysis of an Indian Medicinal Herb:Paederia foetida (Prasarini)

Indian Journal of Public Health Research & Development ◽

10.37506/v11/i1/2020/ijphrd/193895 ◽

2020 ◽

Vol 11 (1) ◽

pp. 641

Author(s):

Subhashree Satapathy ◽

Gurudutta Pattnaik

Keyword(s):

Medicinal Herb ◽

Ftir Analysis ◽

Phytochemical Screening ◽

Paederia Foetida

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The Catholic Diaspora—Experiences of Evacuation

10.1093/oso/9780198827023.003.0005 ◽

2018 ◽

Author(s):

Thomas Brodie

Keyword(s):

Urban Areas ◽

Religious Practice ◽

Catholic Clergy ◽

Profound Influence ◽

The Social ◽

Depth Analysis ◽

Nazi Era ◽

Mass Evacuation ◽

The Impact ◽

Pastoral Practice

This chapter analyses the impact exerted on the Catholic Church’s pastoral networks in Germany by the mass evacuation of laypeople from bombed urban areas as of 1941. Drawing on the voluminous correspondence of priests and curates despatched from the Rhineland and Westphalia to Saxony, Thuringia, Silesia, Austria, and elsewhere to minister to Catholic evacuees, this chapter provides in-depth analysis of the social and cultural histories of religious practice in wartime Germany. It demonstrates that the evacuation of laypeople—a topic long neglected within histories of wartime religious practice—exerted a profound influence on pastoral practice by the years 1943–5, placing unprecedented pressures on the Catholic clergy of the dioceses central to this study (Aachen, Cologne and Münster). This chapter therefore also casts new light on regionalism in Germany during the Nazi era.

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Effects of Various Types of Expandable Graphite and Blackcurrant Pomace on the Properties of Viscoelastic Polyurethane Foams

Materials ◽

10.3390/ma14071801 ◽

2021 ◽

Vol 14 (7) ◽

pp. 1801

Author(s):

Rafał Oliwa ◽

Joanna Ryszkowska ◽

Mariusz Oleksy ◽

Monika Auguścik-Królikowska ◽

Małgorzata Gzik ◽

...

Keyword(s):

Mechanical Properties ◽

Chemical Structure ◽

Oxygen Index ◽

Polyurethane Foams ◽

Expandable Graphite ◽

Ftir Analysis ◽

Limiting Oxygen Index ◽

Peak Heat Release Rate ◽

Physical And Chemical ◽

Scanning Electron

We investigated the effect of the type and amount of expandable graphite (EG) and blackcurrant pomace (BCP) on the flammability, thermal stability, mechanical properties, physical, and chemical structure of viscoelastic polyurethane foams (VEF). For this purpose, the polyurethane foams containing EG, BCP, and EG with BCP were obtained. The content of EG varied in the range of 3–15 per hundred polyols (php), while the BCP content was 30 php. Based on the obtained results, it was found that the additional introduction of BCPs into EG-containing composites allows for an additive effect in improving the functional properties of viscoelastic polyurethane foams. As a result, the composite containing 30 php of BCP and 15 php of EG with the largest particle size and expanded volume shows the largest change in the studied parameters (hardness (H) = 2.65 kPa (+16.2%), limiting oxygen index (LOI) = 26% (+44.4%), and peak heat release rate (pHRR) = 15.5 kW/m2 (−87.4%)). In addition, this composite was characterized by the highest char yield (m600 = 17.9% (+44.1%)). In turn, the change in mechanical properties is related to a change in the physical and chemical structure of the foams as indicated by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) analysis.

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Effect of Rot-, Fire-, and Water-Retardant Treatments on Jute Fiber and Their Associated Thermoplastic Composites: A Study by FTIR

Polymers ◽

10.3390/polym13152571 ◽

2021 ◽

Vol 13 (15) ◽

pp. 2571

Author(s):

Sweety Shahinur ◽

Mahbub Hasan ◽

Qumrul Ahsan ◽

Nayer Sultana ◽

Zakaria Ahmed ◽

...

Keyword(s):

Product Development ◽

Environmental Sustainability ◽

Mechanical Performance ◽

Natural Fiber ◽

Jute Fiber ◽

Thermoplastic Composites ◽

Ftir Analysis ◽

Renewable Materials ◽

Weight Percentage ◽

Chemical Treatments

Natural renewable materials can play a big role in reducing the consumption of synthetic materials for environmental sustainability. Natural fiber-reinforced composites have attracted significant research and commercial importance due to their versatile characteristics and multi-dimensional applications. As the natural materials are easily rotten, flammable, and moisture absorbent, they require additional chemical modification for use in sustainable product development. In the present research, jute fibers were treated with rot-, fire-, and water-retardant chemicals and their corresponding polymer composites were fabricated using a compression molding technique. To identify the effects of the chemical treatments on the jute fiber and their polymeric composites, a Fourier transformed infrared radiation (FTIR) study was conducted and the results were analyzed. The presence of various chemicals in the post-treated fibers and the associated composites were identified through the FTIR analysis. The varying weight percentage of the chemicals used for treating the fibers affected the physio-mechanical properties of the fiber as well as their composites. From the FTIR analysis, it was concluded that crystallinity increased with the chemical concentration of the treatment which could be contributed to the improvement in their mechanical performance. This study provides valuable information for both academia and industry on the effect of various chemical treatments of the jute fiber for improved product development.

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Synthesis of Novel Arginine-Based Flame Retardant and Its Application in Lyocell Fabric

Molecules ◽

10.3390/molecules26123588 ◽

2021 ◽

Vol 26 (12) ◽

pp. 3588

Author(s):

Jiayi Chen ◽

Yansong Liu ◽

Jiayue Zhang ◽

Yuanlin Ren ◽

Xiaohui Liu

Keyword(s):

Fourier Transform ◽

Heat Release ◽

Flame Retardant ◽

Photoelectron Spectroscopy ◽

Fourier Transform Infrared ◽

Ftir Analysis ◽

Excellent Thermal Stability ◽

X Ray ◽

Cone Calorimeter Test ◽

Before And After

Lyocell fabrics are widely applied in textiles, however, its high flammability increases the risk of fire. Therefore, to resolve the issue, a novel biomass-based flame retardant with phosphorus and nitrogen elements was designed and synthesized by the reaction of arginine with phosphoric acid and urea. It was then grafted onto the lyocell fabric by a dip-dry-cure technique to prepare durable flame-retardant lyocell fabric (FR-lyocell). X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy (FTIR) analysis demonstrated that the flame retardant was successfully introduced into the lyocell sample. Thermogravimetric (TG) and Raman analyses confirmed that the modified lyocell fabric featured excellent thermal stability and significantly increased char residue. Vertical combustion results indicated that FR-lyocell before and after washing formed a complete and dense char layer. Thermogravimetric Fourier-transform infrared (TG-FTIR) analysis suggested that incombustible substances (such as H2O and CO2) were produced and played a significant fire retarding role in the gas phase. The cone calorimeter test corroborated that the peak of heat release rate (PHRR) and total heat release (THR) declined by 89.4% and 56.4%, respectively. These results indicated that the flame retardancy of the lyocell fabric was observably ameliorated.

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TG-FTIR analysis of bio-oil and its pyrolysis/gasification property

Journal of Fuel Chemistry and Technology ◽

10.1016/s1872-5813(12)60121-2 ◽

2012 ◽

Vol 40 (10) ◽

pp. 1194-1199 ◽

Cited By ~ 9

Author(s):

Yi ZHANG ◽

Deng-yu CHEN ◽

Dong ZHANG ◽

Xi-feng ZHU

Keyword(s):

Ftir Analysis ◽

Bio Oil

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Fundamental Characterisation of Dredged Marine Sediments from Kuala Perlis Jetty by XRF, XRD and FTIR

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.620.469 ◽

2012 ◽

Vol 620 ◽

pp. 469-473 ◽

Cited By ~ 2

Author(s):

Norhashimah Ramli ◽

Mohammad Hafizuddin Haji Jumali ◽

Wan Safizah Wan Salim

Keyword(s):

Heavy Metals ◽

Marine Sediments ◽

Xrd Analysis ◽

Raw Material ◽

Ftir Analysis ◽

Huge Amount ◽

The Us ◽

Dredged Marine Sediment ◽

Primary Mineral ◽

Us Epa

Dredging along Kuala Perlis Jetty results in huge amount of marine sediments which has thrown considerable challenge for disposal. This research was conducted to characterize dredged marine sediment which was collected at Kuala Perlis Jetty as potential raw material for brick production. Three different characterizations were performed namely XRF, XRD and FTIR. XRF analysis showed the presence of SiO2 and Al2O3 as major quantities. Low concentration of heavy metals namely As, Cr, Cu, Pb, Ni and Zn presence in the sediment comply the US EPA guideline for brick production. XRD analysis indicated the presence of quartz as primary mineral while kaolinite and illite also present as secondary and ternary phases. FTIR analysis identified various form of minerals presence in the samples which strongly supported XRD results.

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