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Journal articles on the topic 'Black metal (Musique) – Influence'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Marynowski, Leszek, Agnieszka Pisarzowska, Arkadiusz Derkowski, et al. "Influence of palaeoweathering on trace metal concentrations and environmental proxies in black shales." Palaeogeography, Palaeoclimatology, Palaeoecology 472 (April 2017): 177–91. http://dx.doi.org/10.1016/j.palaeo.2017.02.023.

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Zhang, Bohan, Jianhua Xiong, Tianyu Zhao, et al. "The Influence of Key Elements in Black-Odor Water." Journal of Biobased Materials and Bioenergy 14, no. 3 (2020): 309–15. http://dx.doi.org/10.1166/jbmb.2020.1965.

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Currently, the progress for the treatment of black-odor rivers is not optimistic. One of the main reasons is that the public understanding of the influence of key elements for the formation of black-odor water still remains unclear. Studying the key elements in black-odor water is important to determine the water quality conditions, evolution process, and mechanism underlying the formation of black-odor water, as well as to quantify the degree of black-odor water. In this study, the effect of total organic carbon on dissolved oxygen (DO) and oxidation–reduction potential (ORP) values was studi

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Kondratiuk, T., V. Sobko, T. Beregova, and L. Ostapchenko. "Features of the melanin producer Pseudonadsoniella brunnea under the influence of nitrate lead." Bulletin of Taras Shevchenko National University of Kyiv. Series: Problems of Physiological Functions Regulation 21, no. 2 (2016): 8–14. http://dx.doi.org/10.17721/2616_6410.2016.21.8-14.

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The features of Antarctic black yeast fungus Pseudonadsoniella brunnea (melanin producer) under the influence of heavy metals (lead salts) are studied. It is found that Ps. brunnea does not lose viability and developing under the conditions of nitrate content of lead concentrations of 100, 200, 500, 750 and 1000 mg / l (in terms of metal cation) in the environment. Solid and liquid culture media were used for the cultivation of Ps. brunnea. Spectrophotometric research methods were used within this study. The intensity of the synthesis of melanin by black fungi under the influence of lead nitra

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Volovlikova, Olga V., S. A. Gavrilov, P. I. Lazarenko, A. V. Kukin, A. A. Dudin, and A. K. Tarhanov. "Influence of Etching Regimes on the Reflectance of Black Silicon Films Formed by Ni-Assisted Chemical Etching." Key Engineering Materials 806 (June 2019): 24–29. http://dx.doi.org/10.4028/www.scientific.net/kem.806.24.

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This paper examines the influence of etching regimes on the reflectance of black silicon formed by Ni-assisted chemical etching. Black silicon exhibits properties of high light absorptance. The measured minimum values of the reflectance (R-min) of black silicon with thickness of 580 nm formed by metal-assisted chemical etching (MACE) for 60 minutes at 460 lx illumination were 2,3% in the UV region (200–400 nm), 0,5% in the visible region (400–750 nm) and 0,3% in the IR region (750–1300 nm). The findings showed that the reflectance of black silicon depends on its thickness, illumination and tre

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Granholm, Kennet. "“Sons of Northern Darkness”: Heathen Influences in Black Metal and Neofolk Music1." Numen 58, no. 4 (2011): 514–44. http://dx.doi.org/10.1163/156852711x577069.

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AbstractThe focus of this article is on the influence of heathenism on popular music, specifically on Black Metal and Neofolk. These two genres, or more correctly scenes, are converging — something which is interesting in itself as purely musical similarities are nonexistent. Both scenes are permeated by heathen notions, and have the ability to function as “cultural systems” providing sets of ideology, meanings, and practices for their adherents. Thus, they comprise more than simply “musical styles.” The appeal of heathenism in these scenes can be explained by its status as non-mainstream exot

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Liu, Ning, Hans-Georg Steinrück, Andres Osvet, Yuyun Yang, and Patrik Schmuki. "Noble metal free photocatalytic H2 generation on black TiO2: On the influence of crystal facets vs. crystal damage." Applied Physics Letters 110, no. 7 (2017): 072102. http://dx.doi.org/10.1063/1.4976010.

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Skelchy, Russell P. "Worshippers of the sugarcane fields: Agrarian politics, symbolic inversion and black metal in Indonesia." Metal Music Studies 5, no. 2 (2019): 163–86. http://dx.doi.org/10.1386/mms.5.2.163_1.

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The inverted cross as a symbol in black metal music has long associated the genre with the mysterious and transgressive aura of the occult. Although the inverted cross can be construed as simultaneously sinister and frivolous, the idea of social inversion carries broader implications. Drawing from interpretations of social and symbolic inversion from multiple disciplines, this article examines how social order is contested and negotiated in Indonesia through the musical idiom of black metal. Indonesia currently has the world’s largest Muslim population and is one of Asia’s fastest growing econ

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Soldán, Maroš, Alica Bartošová, and Janka Ševčíková. "Cr^VI Adsorption Using Black Nickel Mud as Adsorbent." Advanced Materials Research 726-731 (August 2013): 58–61. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.58.

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Rapid industrialization and usage of heavy metals in industrial processes have resulted in unprecedented increase in the heavy metal flux into groundwater. Hexavalent chromium is one of elements with high health risks such as mutagenicity and carcinogenicity. Adsorption is economically feasible alternative of chromium removal. We have used spectrophotometric method for monitoring of hexavalent chromium adsorption from aqueous solution with the use of black as adsorbent. We have monitored the influence of temperature and surface treatment on the adsorption process.

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Galbičková, Blanka, Maroš Soldán, Michal Belčík, and Karol Balog. "Removal Of Phenol From Wastewater By Using Low-Cost Catalyst From Metal Production." Research Papers Faculty of Materials Science and Technology Slovak University of Technology 22, no. 341 (2014): 55–59. http://dx.doi.org/10.2478/rput-2014-0008.

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Abstract Utilization of AOPs (Advanced oxidation processes) as an emerging technology for removing of pollutants from wastewater is developed. In this paper, UV photodegradation was used for removing of phenol from wastewater. As a source of UV radiation medium pressure mercury lamp with output 400W was used. The influence of low-cost catalysts on this process was also monitored. Wastes from metal production, red mud and black nickel mud, were used as catalysts.

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10

Asokan, Vijayshankar, Dorte Madsen, Dhayalan Velauthapillai, Velaug Myrseth, and Pawel Kosinski. "Effect of Temperature on the Transformation of Carbon Black into Nanotubes." Advanced Materials Research 875-877 (February 2014): 1565–71. http://dx.doi.org/10.4028/www.scientific.net/amr.875-877.1565.

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In this paper, successful structural transformation of carbon black (CB) into nanotubes and nanoonion like structures at relatively low temperatures in the presence of transition metal catalyst is reported. This study focuses also on the influence of the temperature on the structural transformation of CB into nanostructures. The experiments were carried out at 700°C and 1000°C in a horizontal tube furnace under N2 atmosphere. The obtained samples were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM) and high-resolution transmission electron microscopy

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Han, Kee Sung, and Oc Hee Han. "Influence of metal cleaning on the particle size and surface morphology of platinum black studied by NMR, TEM and CV techniques." Electrochimica Acta 47, no. 3 (2001): 519–23. http://dx.doi.org/10.1016/s0013-4686(01)00773-3.

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12

Nogami, Lizandra, Antenor B. Paraguassú, José E. Rodrigues, and Rogério P. Ribeiro. "Influence of the Mineralogical and Mortar Components on the Adherence of Some “Granites”." Key Engineering Materials 548 (April 2013): 267–74. http://dx.doi.org/10.4028/www.scientific.net/kem.548.267.

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Rock plate setting can be performed with metal inserts or by mortar adhesion. For mortar setting, the adhesion bond strength values, as a rule, should be above 1 MPa. In the present work, tests with eight types of “granite” tiles were performed to compare the adherence of five types of mortars. The rocks chosen were: Red Brasilia (syenogranite), Black Indian (migmatite), Green Labrador (charnockite), Black Sao Gabriel (hypersthene diorite), Rose Jacaranda (nebulitic migmatite syenogranite), Fantastic Blue (biotite monzogranite megaporphyritic serial gneissified), Grey Swallow (monzogranite) an

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Bessa, Leah W., Elsje Pieterse, Jeannine Marais, Karim Dhanani, and Louwrens C. Hoffman. "Food Safety of Consuming Black Soldier Fly (Hermetia illucens) Larvae: Microbial, Heavy Metal and Cross-Reactive Allergen Risks." Foods 10, no. 8 (2021): 1934. http://dx.doi.org/10.3390/foods10081934.

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Black soldier fly (Hermetia illucens) larvae (BSFL) are a promising, sustainable source of nutrients, however, there is limited knowledge regarding the food safety of consuming BSFL. This study determined the safety of consuming BSFL for direct human consumption in terms of microbial, heavy metal and allergen content. Microbial counts were determined using ISO (International Organization for Standardization) methods, heavy metals were determined using inductively coupled plasma mass spectrometry and allergens were determined via Orbitrap mass spectrometry and ELISA (enzyme-linked immunosorbent

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14

Song, Sung Ho. "Influence of Eco-Friendly Processing Aids on Silica-Based Rubber Composites." Applied Sciences 10, no. 20 (2020): 7244. http://dx.doi.org/10.3390/app10207244.

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As eco-friendly “green tires” are being developed in the tire industry, conventionally used carbon black is being replaced with silica in rubber compounds. Generally, as a lubricant and dispersing agent, processing aids containing zinc ions have been employed as additives. However, as zinc is a heavy metal, alternative eco-friendly processing aids are required to satisfy worldwide environmental concerns. Furthermore, non-toxic, degradable, and renewable processing aids are required to improve the mechanical properties of the rubber composites. In this study, we evaluated the effects of diverse

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15

Tan, Xiao, Zhi Tao, Mingxing Yu, Hanxiao Wu, and Haiwang Li. "Anti-Reflectance Optimization of Secondary Nanostructured Black Silicon Grown on Micro-Structured Arrays." Micromachines 9, no. 8 (2018): 385. http://dx.doi.org/10.3390/mi9080385.

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Owing to its extremely low light absorption, black silicon has been widely investigated and reported in recent years, and simultaneously applied to various disciplines. Black silicon is, in general, fabricated on flat surfaces based on the silicon substrate. However, with three normal fabrication methods—plasma dry etching, metal-assisted wet etching, and femtosecond laser pulse etching—black silicon cannot perform easily due to its lowest absorption and thus some studies remained in the laboratory stage. This paper puts forward a novel secondary nanostructured black silicon, which uses the dr

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Galbičková, Blanka, Lenka Blinová, and Maroš Soldán. "Using of AOP Process for Phenol Removal from Wastewater." Advanced Materials Research 864-867 (December 2013): 1690–93. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.1690.

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Advanced oxidation processes (AOPs) have been developed as an emerging technology for hazardous organic treatment in industrial wastewater. For phenol removing from wastewater traditional disinfection by chlorine is not appropriate because of generating more toxic pollutants - chlorophenols so AOPs are widely used for disinfection of this kind of water. In this paper for phenol degradation is used physico-chemical method (ozonization). Also influence of catalyst is monitored. As catalyst red mud and black nickel mud are used. These catalysts are waste from metal production. Results from analys

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17

Trappe, Hans-Joachim, and Irini Maria Brecker. "Effects of Different Styles of Music on Human Cardiovascular Response: A Prospective Controlled Trial." Music and Medicine 8, no. 1 (2016): 8. http://dx.doi.org/10.47513/mmd.v8i1.448.

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Background The potential effects of classical music (CL) and heavy metal (HM) in comparison to silence (S [“controls CO]) or noise (N) on cardiovascular parameters (blood pressure [BP], heart rate [HR]) and cortisol levels (C) has not been studied before. Objective To analyse the effect of different music styles (intervention group) on BP, HR and C compared to S (control group). Methods 120 volunteers aged 25-75 years were studied. 60 volunteers were consecutively assigned in the intervention group (n=60). Sixty volunteers were matched according to age, sex, height and weight (control group).

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18

Rivellini, Laura-Hélèna, Max Gerrit Adam, Nethmi Kasthuriarachchi, and Alex King Yin Lee. "Characterization of carbonaceous aerosols in Singapore: insight from black carbon fragments and trace metal ions detected by a soot particle aerosol mass spectrometer." Atmospheric Chemistry and Physics 20, no. 10 (2020): 5977–93. http://dx.doi.org/10.5194/acp-20-5977-2020.

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Abstract. Understanding sources and atmospheric processes that can influence the physiochemical properties of carbonaceous aerosols is essential to evaluate their impacts on air quality and climate. However, resolving the sources, emission characteristics, and aging processes of carbonaceous aerosols in complex urban environments remains challenging. In this work, a soot particle aerosol mass spectrometer (SP-AMS) was deployed to characterize organic aerosols (OAs), refractory black carbon (rBC), and trace metals in Singapore, a highly urbanized city with multiple local and regional air pollut

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19

Margolis, Hank A., Jacques Bégin, Richard Beeson, and Pierre Bellefleur. "The influence of metal halide and high-pressure sodium lamps during photoperiod extension on the allocation of carbon between lignin and cellulose in black spruce seedlings." Canadian Journal of Forest Research 18, no. 7 (1988): 962–64. http://dx.doi.org/10.1139/x88-147.

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Containerized black spruce seedlings (Piceamariana (Mill.) B.S.P.) were grown at the greenhouse at CIP Inc., Harrington, Québec, from February until May, 1987. We wished to test whether differences in the quantity and quality of light received from two commercially available lamps during photoperiod extension would alter the allocation of carbon between lignin and cellulose in shoots and roots. Photoperiods were extended from 17:00 to 01:00 using either metal halide and high-pressure sodium lamps together or high-pressure sodium lamps alone. At night, the treatment using both types of lamp tog

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20

Granholm, Kim, Tomasz Sokalski, Andrzej Lewenstam, and Ari Ivaska. "Determination of the stability constant of the calcium binding ligand in black liquor (BL) by potentiometric titration." Holzforschung 70, no. 8 (2016): 733–38. http://dx.doi.org/10.1515/hf-2015-0194.

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Abstract The calcium binding ligand in black liquor (BL) has been investigated by the new CSSP (circumvention of slope and standard potential) method, which converts the potential of an ion-selective electrode to concentration or activity. The advantage of this approach is that the knowledge about the electrode standard potential and the slope of the calibration curve is not needed. Instead, two activities of calcium ion on the titration curve have to be estimated, for instance the starting activity before the titration begins and the activity at the end of the titration in presence of a large

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VOUTSINOU-TALIADOURI, F., C. ZERI, and A. MORIKI. "Distribution and transfer of trace metals in the Aegean Seawater (Eastern Mediterranean Basin)." Mediterranean Marine Science 1, no. 2 (2000): 5. http://dx.doi.org/10.12681/mms.287.

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Recent measurements of dissolved Cd, Cu, Ni and Mn in 324 water samples of the Aegean Sea fill the gap of missing knowledge in this part of the Eastern Mediterranean and try to identify their main input sources and spreading pathways. The analyses indicate that trace metal concentrations in the North and South Aegean Sea are generally in good agreement with those reported for the Western Mediterranean Sea. In the North Aegean Sea the trace metal distribution patterns differentiate mainly according to the existing water masses. Hence, a strong influence of the Black Sea Water, enriched in trace

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Hentschel, Oliver, Laurids Siegel, Christian Scheitler, et al. "Processing of AISI H11 Tool Steel Powder Modified with Carbon Black Nanoparticles for the Additive Manufacturing of Forging Tools with Tailored Mechanical Properties by Means of Laser Metal Deposition (LMD)." Metals 8, no. 9 (2018): 659. http://dx.doi.org/10.3390/met8090659.

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Within the scope of the presented work the processing of AISI H11 (1.2343 or X37CrMoV5-1) tool steel powder modified by adding carbon black nanoparticles in varying concentrations by means of Laser Metal Deposition (LMD) is extensively investigated. On the basis of single weld track experiments, multi-layered cuboid-shaped samples made out of pure AISI H11 tool steel powder as well as modified tool steel powder mixtures were manufactured by applying various process parameters. The main scientific aim of the investigations was to achieve a basic understanding of the influence of the added carbo

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Dańczak, Anna, Ronja Ruismäki, Tommi Rinne, et al. "Worth from Waste: Utilizing a Graphite-Rich Fraction from Spent Lithium-Ion Batteries as Alternative Reductant in Nickel Slag Cleaning." Minerals 11, no. 7 (2021): 784. http://dx.doi.org/10.3390/min11070784.

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One possible way of recovering metals from spent lithium-ion batteries is to integrate the recycling with already existing metallurgical processes. This study continues our effort on integrating froth flotation and nickel-slag cleaning process for metal recovery from spent batteries (SBs), using anodic graphite as the main reductant. The SBs used in this study was a froth fraction from flotation of industrially prepared black mass. The effect of different ratios of Ni-slag to SBs on the time-dependent phase formation and metal behavior was investigated. The possible influence of graphite and s

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Núñez-Carmona, Estefanía, Marco Abbatangelo, and Veronica Sberveglieri. "Internet of Food (IoF), Tailor-Made Metal Oxide Gas Sensors to Support Tea Supply Chain." Sensors 21, no. 13 (2021): 4266. http://dx.doi.org/10.3390/s21134266.

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Tea is the second most consumed beverage, and its aroma, determined by volatile compounds (VOCs) present in leaves or developed during the processing stages, has a great influence on the final quality. The goal of this study is to determine the volatilome of different types of tea to provide a competitive tool in terms of time and costs to recognize and enhance the quality of the product in the food chain. Analyzed samples are representative of the three major types of tea: black, green, and white. VOCs were studied in parallel with different technologies and methods: gas chromatography couple

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Barbot'ko, S. L., I. S. Naumov, O. S. Vol'nyi, and E. V. Alifanov. "The Effect of Pigments on the Flammability Characteristics of a Rubber Compound Based on Methylvinylsiloxane Rubber." International Polymer Science and Technology 44, no. 11 (2017): 41–46. http://dx.doi.org/10.1177/0307174x1704401109.

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When parts manufactured from polymeric materials are used in different sectors of industry, the use of different colours may be required. The use of pigments of different chemical nature and often possessing catalytic activity may lead to a change in fire hazard characteristics. The effect of several inorganic pigments based on carbon black and metal compounds on the flammability characteristics of a rubber compound of grade VR-42 (white-coloured) based on methylvinylsiloxane rubber has been investigated. A comparison with a standard rubber compound containing magnesium hydroxide has been carr

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Dziemidkiewicz, Anna, Martyna Pingot, and Magdalena Maciejewska. "METAL COMPLEXES AS NEW PRO-ECOLOGICAL CROSSLINKING AGENTS FOR CHLOROPRENE RUBBER BASED ON HECK COUPLING REACTION." Rubber Chemistry and Technology 92, no. 3 (2019): 589–97. http://dx.doi.org/10.5254/rct.19.81465.

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ABSTRACT The influence of new pro-ecological curing agents on the crosslinking process of chloroprene rubber (CR) was examined. The proposed curing system used a simpler recipe (no need to apply harmful products such as zinc oxide and ethylene thiourea) and cost less than standard metal oxides. It was expected that the mechanism of crosslinking would be similar to that of Heck-type reactions. Heck-type reactions are powerful tools for the creation of new C=C bonds. They provide the simplest and most efficient way to synthesize a variety of important compounds used in many areas, such as pharma

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Khamouli, Farida, Mosbah Zidani, Kaltoum Digheche, Adel Saoudi, and L'Hadi Atoui. "Influence of Cellulosic Fluxes on the Chemical Composition, Microstructure, Inclusions and Micro-Hardness of SMAW Multi-Pass Welds of X42 Steel." Solid State Phenomena 297 (September 2019): 62–70. http://dx.doi.org/10.4028/www.scientific.net/ssp.297.62.

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This paper studied the influence of cellulosic flux on the chemical composition, microstructure, formation of inclusions and micro hardness of X42 welded steel. The chemical compositions of the used fluxes are FA: E6010 and FB: E8010-P1, with electrodes has low carbon content. The welding conditions are not constant. The fluxes (FA and FB) have a high content of TiO2 and SiO2 and a low Ti and Si content was also detected in the internal (P1) and external (P3) passes. But there was an increase in the Ti content in the fusion zone (P1, P2 and P3) of the different passes gradually, compared to th

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Dziemidkiewicz, Anna, and Magdalena Maciejewska. "Manganese and Nickel Acetylacetonates as Curatives for Chloroprene Rubber Based on Heck’s Reaction." Materials 14, no. 4 (2021): 807. http://dx.doi.org/10.3390/ma14040807.

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The commonly used curing system for chloroprene rubber (CR) is a combination of two metal oxides, such as magnesium oxide (MgO) and zinc oxide (ZnO). Application of MgO and ZnO enables to obtain a good balance between processability of rubber compounds and mechanical properties of the vulcanizates. Despite high activity in crosslinking reactions, ZnO is classified as ecotoxic to aquatic organisms, thus environmental legislation requires its quantity in technology to be limited. In our studies more environmentally friendly curing systems were applied, which enabled eliminating ZnO from CR compo

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Simeonova, A., and S. Petkova. "Biosorption of heavy metals by marine algae Ulva rigida, Cystoseira barbata and C. crinita." Biosystems Diversity 15, no. 1 (2007): 224–30. http://dx.doi.org/10.15421/010740.

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Adsorption properties of three different marine algae (Ulva rigida (green algae); Cystoseira barbata (brown algae) and Cystoseira crinita (brown algae)) were investigated. They were collected from the Black Sea coastal area in Varna region, Bulgaria. Kinetics were studied to evaluate the ability of the three algae to sequester Cu (II), Zn (II), Pb (II), Ni (II), Cd (II) from aqueous solution. The maximum biosorption capacity obtained was 2.84 mgeq Ni2+/g for Cystoseira crinita and 2.28 mgeq Cu2+/g for Cystoseira barbata at a solution pH of 5 ± 0.5. The influence of pH of the solution and algae

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Mitrofanov, Artem A., Petr I. Matveev, Kristina V. Yakubova, et al. "Deep Learning Insights into Lanthanides Complexation Chemistry." Molecules 26, no. 11 (2021): 3237. http://dx.doi.org/10.3390/molecules26113237.

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Modern structure–property models are widely used in chemistry; however, in many cases, they are still a kind of a “black box” where there is no clear path from molecule structure to target property. Here we present an example of deep learning usage not only to build a model but also to determine key structural fragments of ligands influencing metal complexation. We have a series of chemically similar lanthanide ions, and we have collected data on complexes’ stability, built models, predicting stability constants and decoded the models to obtain key fragments responsible for complexation effici

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Wilson, S. B., P. J. Stoffella, and D. A. Graetz. "Compost Amended Media and Irrigation System Influence Containerized Perennial Salvia." Journal of the American Society for Horticultural Science 128, no. 2 (2003): 260–68. http://dx.doi.org/10.21273/jashs.128.2.0260.

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Three perennial species, wine sage (Salvia spp. Sell x roenen Schultes `Van Houttei'), blue anise sage (Salvia gauranitica St.-Hil. Ex Benth. `Black and Blue'), and indigo spires salvia (S. longispicata Martius Galeotti × S. farinacea Benth. `Indigo Spires') were transplanted in containers filled with a biosolid-yard waste compost, a commercial peat-based mix, or a mixture of 1 compost: 1 peat-based mix by volume) and grown under ebb-and-flow, drip, or manual irrigation systems. Initial physical, chemical, and elemental analyses of the media indicated that compost alone had higher pH, electric

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Marques, Paulo A. M., and Paulo E. Jorge. "Winter Latitudinal Population Age-Structure of a Migratory Seagull (Larus fuscus) Differs between Its Two Major Migratory Flyways." International Journal of Ecology 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/737616.

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The migration is energy-demanding and is expected to greatly affect the distribution of individuals over the species range and condition the choice of migratory routes. We investigated the wintering distributions and migratory flyways use of geographically contiguous populations of Lesser Black-backed Gulls (Larus fuscus) and difference in population winter age structure between migratory flyways. Recoveries of metal ringed pulli from Denmark, Sweden, and Finland were used. The results showed that contiguous populations can have distinct wintering distribution patterns and migratory flyways. M

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Kurуlo, S. I., N. M. Lуzhachenko, S. M. Bondarenko, V. O. Syomka, and O. V. Hrinchenko. "Ta-Nb mineralization in rare-metal pegmatite from north-western frame of Lypniazhka granite-migmatite structure." Geochemistry and ore formation 41 (2020): 32–41. http://dx.doi.org/10.15407/gof.2020.41.032.

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The three type of rare-metal pegmatites are know in Stankuvatske ore field (Ingul megablock, the Ukraianian Shield), such as: Li-bearing, Bi-As-U and Ta-Nb pegmatites. For the first time Ta-Nb mineralisation from Ta-Nb bearing albite-K-Feldspar rare metal pegmatite have been described. Investigated pegmatite is located on the Norh-West frame of the Lypnazky granitemigmatite massive among hosted amphibolites. Rare-metal pegmatite doesn’t have obvious zonality and consist of alkaline feldspar, biotite, muscovite, dark to black colour quartz, blue-greenish apatite, nigerite, gachnite, tourmaline,

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Çelik, Mustafa, and Ahmet Tekbıyık. "The influence of activities based on GEMS with the theme of earth crust on the fourth grade students' conceptual understanding and scientific process skills." Pegem Eğitim ve Öğretim Dergisi 6, no. 3 (2016): 303–32. http://dx.doi.org/10.14527/pegegog.2016.016.

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This study aimed to determine the influence of the activities developed based on GEMS on students' conceptual understanding and scientific process skills on the subject of "Earth Crust". Mixed method, which includes the collective use of qualitative and quantitative research methods, was employed in this study. The study was carried out in a public village school located in the Eastern Black Sea Region of Turkey. The research sample consisted of the 4th grade students of this school. 13 students participated in the study. Data were collected by Scientific Process Skills Test, Conceptual Unders

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Deng, Aijun, Yunjin Xia, Jie Li, and Dingdong Fan. "Effect of 2CaO·SiO2 particles addition on dephosphorization behavior." High Temperature Materials and Processes 39, no. 1 (2020): 219–27. http://dx.doi.org/10.1515/htmp-2020-0066.

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AbstractThe effect of the addition of 2CaO·SiO2 solid particles on dephosphorization behavior in carbon-saturated hot metal was investigated. The research results showed that the addition of 2CaO·SiO2 particles have little influence on desilication and demanganization, and the removal of [Si] and [Mn] occurred in the first 5 min with different conditions where the contents of 2CaO·SiO2 particles addition for the conditions 1, 2, 3, 4, and 5 are 0, 2.2, 6.4, 8.6, and 13.0 g, respectively. The final dephosphorization ratios for the conditions 1, 2, 3, 4, and 5 are 61.2%, 66.9%, 79.6%, 63.0%, and

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Sommerfeld, Marcus, Claudia Vonderstein, Christian Dertmann, et al. "A Combined Pyro- and Hydrometallurgical Approach to Recycle Pyrolyzed Lithium-Ion Battery Black Mass Part 1: Production of Lithium Concentrates in an Electric Arc Furnace." Metals 10, no. 8 (2020): 1069. http://dx.doi.org/10.3390/met10081069.

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Due to the increasing demand for battery raw materials such as cobalt, nickel, manganese, and lithium, the extraction of these metals not only from primary, but also from secondary sources like spent lithium-ion batteries (LIBs) is becoming increasingly important. One possible approach for an optimized recovery of valuable metals from spent LIBs is a combined pyro- and hydrometallurgical process. According to the pyrometallurgical process route, in this paper, a suitable slag design for the generation of slag enriched by lithium and mixed cobalt, nickel, and copper alloy as intermediate produc

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Elekdag-Turk, Selma, Nurhat Ozkalayci, Devrim Isci, and Tamer Turk. "Color Preferences of Patients Receiving Elastic Ligatures." European Journal of Dentistry 04, no. 02 (2010): 171–74. http://dx.doi.org/10.1055/s-0039-1697826.

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Objectives: To determine the color preferences for elastic ligatures among patients receiving fixed-appliance orthodontic therapy.Methods: Five hundred patients with metal brackets (336 female patients and 164 male patients) were included, and their color preferences for elastic ligatures were recorded using a color scale. Chi-square analysis was performed to evaluate the color preferences and to determine the influence of age and gender on color preferences (P<.05).Results: Two hundred and seventy-six patients (55.2%) preferred strikingly colorful elastic ligatures, while 224 patients (44.

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Riccucci, Giacomo, Lorenzo Pezzana, Simone Lantean, Alice Tori, Silvia Spriano, and Marco Sangermano. "Investigation of the Thermal Conductivity of Silicon-Base Composites: The Effect of Filler Materials and Characteristic on Thermo-Mechanical Response of Silicon Composite." Applied Sciences 11, no. 12 (2021): 5663. http://dx.doi.org/10.3390/app11125663.

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Thermal conductivity is a key property in many applications from electronic to informatics. The interaction of fillers with Sylgard 184 was studied; this study explores new composites and the influence of metal particles (copper and nickel), carbon-based materials (carbon nanotubes and carbon black), and ceramic nanoparticles (boron nitride) as fillers to enhance thermal properties of silicon-based composites. The effect of the fillers on the final performances of the composite materials was evaluated. The influence of filler volume, dimension, morphology, and chemical nature is studied. Speci

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Pospelova, N. V., V. N. Egorov, N. S. Chelyadina, and M. V. Nekhoroshev. "The copper content in the organs and tissues of Mytilus galloprovincialis Lamarck, 1819 and the flow of its sedimentary deposition into bottom sediments in the farms of the Black Sea aquaculture." Marine Biological Journal 3, no. 4 (2018): 64–75. http://dx.doi.org/10.21072/mbj.2018.03.4.07.

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The role of mussels in formation of water chemical composition is determined by the peculiarities of sorption and trophodynamic processes. Copper is a vital element, but of ten metals the toxic effect of which was tested for the survival of mussel and oyster embryos, copper is following mercury. Studying the regularities of copper content change during mussel ontogeny allows to determine both sanitary and hygienic risks of mussel product use during the mollusks cultivation in mariculture and the biogeochemical role in the formation of the chemical composition of the marine water near mussel fa

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Dziemidkiewicz, Anna, Magdalena Maciejewska, and Martyna Pingot. "Thermal analysis of halogenated rubber cured with a new cross-linking system." Journal of Thermal Analysis and Calorimetry 138, no. 6 (2019): 4395–405. http://dx.doi.org/10.1007/s10973-019-08881-7.

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Abstract The aim of this work was to examine the influence of new curing agents proposed for brominated butyl rubber (BIIR) on the cross-linking process of rubber compounds and the thermal behavior of the vulcanizates. Rubber blends that were filled with carbon black and contained acetylacetonates of different transition metals in the presence of triethanolamine (TEOA) as new cross-linking agents were prepared. The performed studies showed that metal acetylacetonates (Me(acac)) are effective cross-linking agents for BIIR, which was confirmed by high values of the torque increment (∆M) and sign

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Stravskyy, Y. S., V. Y. Stefanyk, and V. I. Zavirucha. "Influence of the preparation “Prodevit-tetra” and “Nanovit” on endogenous intoxication of cows during the dry period." Scientific Messenger of LNU of Veterinary Medicine and Biotechnologies 21, no. 94 (2019): 74–77. http://dx.doi.org/10.32718/nvlvet9413.

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It is well known that medium-sized molecules (MSM) affect the tone of smooth muscle structures of organs and the transvascular transport system. MSM also can pass through placental barrier and intoxicate fetus, resulting in multiple organ damage. The goal of the work was to determine the level of endogenous intoxication in cow’s organism on the last trimester of pregnancy and under the influence of the “Prodovit-tetra” and “Nanovit” preparations, as well as calving process and after it. Experiment was conducted in LLC “Agroprodservice invest” of Ternopil oblast on the cows of Ukrainian black-a

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Seong Ho, Jun. "Monetary authority independence and stability in medieval Korea: the Koryŏ monetary system through four centuries of East Asian transformations, 918-1392." Financial History Review 21, no. 3 (2014): 259–80. http://dx.doi.org/10.1017/s0968565014000213.

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This article surveys the monetary history of Koryŏ from the eleventh to the thirteenth century. During the first century of the dynasty, Koryŏ was at war with the Liao, prohibited trade with the enemy and pursued a policy of protecting its metal reserves. During the ban on metallic coins, rice and cloth served as commodity monies, ensuring price stability in a phase of sustained growth of the rural economy. A second phase began after the victory over the Liao in 1018. Backed by military strength, the government issued iron, bronze and silver currencies to facilitate international trade. The Ko

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Wielgosiński, Grzegorz, Olga Namiecińska, Patrycja Łechtańska, and Adam Grochowalski. "Effect of selected additions on de novo synthesis of polychlorinated dioxins and furans." Ecological Chemistry and Engineering S 23, no. 2 (2016): 249–57. http://dx.doi.org/10.1515/eces-2016-0017.

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Abstract Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans are generally considered the most dangerous chemical substances known to man. Although they have never been the product of purposeful human activity, yet they are formed in many chemical and virtually all thermal processes. Research on the occurrence of dioxins in the environment, their release into the environment, ways of formation and methods of reducing their emissions lasts since the late seventies of the last century. Currently, we know three basic pathways of dioxins formation in thermal processes, the most imp

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Khamouli, Farida, Mosbah Zidani, K. Digheche, A. Saoudi, and L. Atoui. "Effect of E6010 and E8018-G Fluxes Utilization on SMAW Multi-Pass Welded Steel." Diffusion Foundations 18 (September 2018): 55–64. http://dx.doi.org/10.4028/www.scientific.net/df.18.55.

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The aim of this work is to study the influence of the E6010 and E8018-G fluxes on the chemical composition, microstructure, formation of inclusions and micro hardness in different passes (P1, P2 and P3) of X42 welded steel. The marketed chemical composition of used fluxes is: E6010 and E8018-G, which have a low carbon electrodes. The fusion zone microstructure consists of acicular ferrite. The fluxes (FA and FC) have the high TiO2 and SiO2 contents respectively. The high content of Ti and Si, was also detected in the melted zones (P1 ,P2 and P3). The MnO2 oxide proportion in the fluxes (E6010,

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Pribytkov, G. A., M. G. Krinitsyn, V. V. Korzhova, and A. V. Baranovskiy. "Structure and phase composition of SHS products in titanium, carbon and aluminum reactive mixtures." Izvestiya vuzov. Poroshkovaya metallurgiya i funktsional’nye pokrytiya, no. 3 (September 26, 2019): 26–35. http://dx.doi.org/10.17073/1997-308x-2019-3-26-35.

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The TiC + Al binder metal matrix composites were obtained by self-propagating high-temperature synthesis (SHS) in the reactive powder mixtures of titanium, carbon (carbon black) and aluminum. It was found that a steady-state wave combustion occurs when the aluminum powder content in reactive mixtures does not exceed 50 wt.%. Loose SHS cakes obtained during synthesis were crashed and screened to get lumpy, nearly equlaxial composite powders favorable to good flowability necessary for powder application in cladding and spraying of wear-resistant coatings. The synthesis products were studied by s

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Chernenko, О. М., R. A. Sanzhara, N. M. Shulzhenko, R. V. Mylostyvyi, and O. V. Denisyk. "Heavy metals, nitrates and radionuclides in milk of cows depending on their stress resistance." Regulatory Mechanisms in Biosystems 10, no. 4 (2019): 526–31. http://dx.doi.org/10.15421/021977.

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The paper presents the results of studies on the content of cesium, strontium, zinc, cadmium, copper, lead and nitrates in the milk of Ukrainian black-and-white milk breed cows with different resistance to stress. The resistance of cows to stress was determined by concentration of cortisol in the blood one hour after a stress effect. The following factors were stressful: fixation of animals for one hour and pre-selection of blood by a veterinarian for general analysis. The objective of the research was establishing a connection between the different adaptive potential of Ukrainian black-and-wh

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Niu, Tao, Bo Jiang, Ning Zhang, and Yaoqi Wang. "Microstructure and mechanical properties of Ti-Ti2AlNb interface." Composites and Advanced Materials 30 (January 1, 2021): 2633366X2092971. http://dx.doi.org/10.1177/2633366x20929713.

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Diffusion bonding of Ti2AlNb alloy using pure titanium (Ti) foil as an interlayer was carried out on superplastic forming and diffusion bonding special equipment by gas pressure loading method. The microstructure of Ti-Ti2AlNb interface was observed using scanning electron microscope and energy-dispersive spectrometer while the mechanical properties of the joints were evaluated by shear test. The results show that the thickness of Ti foil interlayer has a great influence on the microstructure and shear strength of the interface diffusion region. When the thickness of the intermediate layer is

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Плаван, В. П., І. М. Ткаченко, І. О. Ляшок та В. І. Ступа. "ЕКОЛОГІЧНО-БЕЗПЕЧНА ТЕХНОЛОГІЯ ОЗДОБЛЕННЯ ТЕКСТИЛЬНИХ МАТЕРІАЛІВ З ВИКОРИСТАННЯМ ЕКСТРАКТУ ЧАШОЛИСТОК ПОЛУНИЦІ". Bulletin of the Kyiv National University of Technologies and Design. Technical Science Series 142, № 1 (2020): 102–11. http://dx.doi.org/10.30857/1813-6796.2020.1.10.

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Development of ecologically safe technology of finishing the textile materials using strawberry sepals extract and determination of influence for a mordant with salts from various metals on coloring quality. The technological parameters of the dyeing process by strawberry sepals extract were determined for linen, cotton, viscose and wool textile materials using pre-treatment with or without metal salts of Cu2+, Zn2+, Ni2+, Fe3+, Al3+. The color characteristics of the samples were determined using Adobe Photoshop CS6 software to evaluate the color quality. The resistance of the dyeing the texti

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Hirdman, D., H. Sodemann, S. Eckhardt, et al. "Source identification of short-lived air pollutants in the Arctic using statistical analysis of measurement data and particle dispersion model output." Atmospheric Chemistry and Physics Discussions 9, no. 5 (2009): 19879–937. http://dx.doi.org/10.5194/acpd-9-19879-2009.

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Abstract. As a part of the IPY project POLARCAT (Polar Study using Aircraft, Remote Sensing, Surface Measurements and Models, of Climate Chemistry, Aerosols and Transport), this paper studies the sources of equivalent black carbon (EBC), sulphate, light-scattering aerosols and ozone measured at the Arctic stations Zeppelin, Alert, Barrow and Summit during the years 2000–2007. These species are important pollutants and climate forcing agents, and sulphate and EBC are main components of Arctic haze. To determine where these substances originate, the measurement data were combined with calculatio

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Ni, Wenshan, Xiangju Mao, Mingxing Yao, et al. "Bismuth-Remaining Cupellation Fire Assay Preconcentration Combined with Inductively Coupled Plasma Mass Spectrometry for the Simultaneous Determination of Ultratrace Au, Pt, Pd, Ru, Rh, and Ir in Geologic Samples." International Journal of Analytical Chemistry 2021 (May 5, 2021): 1–8. http://dx.doi.org/10.1155/2021/9960673.

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In this work, a novel method of bismuth fire assay (Bi-FA) combined with inductively coupled plasma mass spectrometry (ICP-MS) simultaneous determination of ultratrace gold (Au), platinum (Pt), palladium (Pd), ruthenium (Ru), rhodium (Rh), and iridium (Ir) in geologic samples was established. Bismuth oxide (Bi2O3) was used as noble metal elements fire assay collector, and Bi-remaining protection cupellation was employed to generate Bi granule. After the Bi granule was microwave-digested by aqua regia (40%, v/v), 197Au, 195Pt, 106Pd, 101Ru, 103Rh, and 193Ir in the sample solution were determine

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