Application of Gilsonite-Modified Slag as a Subballast Layer with Recommendations for Optimum Content of Gilsonite

2021 ◽  
Vol 33 (4) ◽  
pp. 04021049
Author(s):  
Sohrab Pahlevani ◽  
Kazem Jadidi ◽  
Sayyed Mahdi Abtahi ◽  
Sayyed Mahdi Hejazi ◽  
Moses Karakouzian
Keyword(s):  
Optimum Content

scholarly journals Effective Ways of Content Creation in Disseminating Knowledge from Health and Safety Area

2019 ◽  
Vol 1 (1) ◽  
pp. 886-893
Author(s):  
Adam Sokolowski ◽  
Maja Rosi
Keyword(s):  
Health And Safety ◽  
Digital Transformation ◽  
Marketing Strategies ◽  
Google Trends ◽  
Content Category ◽  
Content Creation ◽  
Optimum Content ◽  
Internet Users ◽  
Content Classification

AbstractIn the era of a digital transformation of the manner of presenting and distributing content determined by activeness of Internet users, there is a necessity to identify optimum content creation. This aspect is analysed both in the dimension of information as well as marketing strategies. An important element then is to determine both technological as well as behavioural reasons that influence the form of the disseminated information. The paper will present marketing formats of content creation in the processes of disseminating knowledge on health and safety. In this light the Author will also analyse the effectiveness of particular types of content. Classification and characteristics of content will be presented in it as well. The research will be supported by selected tools of internet analytics so as to identify the types of content transfer carriers and the scale of their impact (such as, for example, Google Trends, Google Planner, Ubersuggest, Buzzsumo, Brand24 itp). The presentation will also include expert industry reports that indicate the extent to which in a general grasp the presented creations are applied to formulate interdependencies of applying the identified contents in the scope of the issues related to health and safety. Identifying potential division lines within the content category will allow to formulate a profiled methodology of their application within this specialist area.

The Properties of Cement Mortar Reinforced by Pistachio Shells Fibre

2021 ◽  
Vol 1021 ◽  
pp. 210-219
Author(s):  
Mohammed Qasim Al Karawi ◽  
Rasha Jasim Al Karawi ◽  
Tumadhir Merawi Borhan
Keyword(s):  
Lightweight Concrete ◽  
Cement Mortar ◽  
Agricultural Wastes ◽  
Current Investigation ◽  
Fundamental Properties ◽  
Optimum Content ◽  
Cement Mortars

Pistachio shells (PS) are one of the agricultural wastes, that are considered as economic and wide available material. It has some features that encourage using it to produce lightweight concrete and cement mortar. The essential objective of the current investigation is to evaluate the possibility of incorporating PS as a fibre in the cement mortar and the effect on its properties. Four different fibre percentages (0%, 0.5%, 1% and 1.5% by volume of cement) were examined. After curing the samples for 7 and 28 days, the fundamental properties of the cement mortars, including splitting tensile and compressive strengths I addition to the density, were determined and compared. The results revealed that the optimum content of the pistachio shells fibre lies between 0.5% and 1% where the splitting tensile and compressive strengths increased and the mortar’s density reduced at age of 28 days.

scholarly journals Effect of the FDT transmission frequency for an optimum content delivery using the FLUTE protocol

2013 ◽  
Vol 36 (12) ◽  
pp. 1298-1309 ◽  
Author(s):  
Ismael de Fez ◽  
Francisco Fraile ◽  
Juan C. Guerri
Keyword(s):  
Content Delivery ◽  
Transmission Frequency ◽  
Optimum Content

The Performance of the Cu-Zn/CeO2 Catalysts in the Steam Reforming of Methanol Reaction

2011 ◽  
Vol 324 ◽  
pp. 157-161 ◽  
Author(s):  
Mary Mrad ◽  
Cédric Gennequin ◽  
Antoine Aboukaïs ◽  
Edmond Abi-Aad
Keyword(s):  
Catalytic Activity ◽  
Steam Reforming ◽  
Conversion Rate ◽  
Methanol Conversion ◽  
Impregnation Method ◽  
Copper Species ◽  
Steam Reforming Of Methanol ◽  
Optimum Content

The performances of different xCu10Ce and xZn10Ce (x = 1, 3, and 5) catalysts prepared by impregnation method then pelletised, were investigated in the steam reforming of methanol (SRM) under a GHSV = 15500 h-1 with H2O/CH3OH = 2. The impregnation of copper over ceria supports shows better results than that of zinc. The catalytic activity in the Cu-based depends on the dispersion of the copper species. The methanol conversion rate is related to the formation of an optimum content of reduced copper species.

scholarly journals Stabilization of Expansive Soil Using Biomedical Waste Incinerator Ash

2021 ◽  
Vol 4 (2) ◽  
Author(s):  
Asefachew Belete Tseganeh ◽  
Henok Fikre Geberegziabher ◽  
Ayele Tesema Chala
Keyword(s):  
Expansive Soils ◽  
Relative Effectiveness ◽  
Expansive Soil ◽  
Size Analysis ◽  
Natural Soil ◽  
Waste Incinerator ◽  
Biomedical Waste ◽  
Incinerator Ash ◽  
Optimum Content ◽  
Free Swell

Expansive soils undergo high volume change due to cyclic swelling and shrinkage behavior during the wet and dry seasons. Thus, such problematic soils should be completely avoided or properly treated when encountered as subgrade materials. In the present study, the biomedical waste incinerator ash and lime combination was proposed to stabilize expansive soil. Particle size analysis, Atterberg limits, free-swell, compaction, unconfined compression strength, and California bearing ratio tests were conducted on the natural soil and blended with 3%, 5%, 7%, 9%, and 11% biomedical waste incinerator ash (BWIA). The optimum content of BWIA was determined based on the free-swell test results. To further investigate the relative effectiveness of the stabilizer, 2% and 3% lime were also added to the optimum soil-BWIA mixture and UCS and CBR tests were also conducted. In addition, scanning electron microscopy (SEM) tests for representative stabilized samples were also conducted to examine the changes in microfabrics and structural arrangements due to bonding. The addition of BWIA has a promising effect on the index properties and strength of the expansive soil. The strength of the expansive soil significantly increased when it was blended with the optimum content of BWIA amended by 2% and 3% lime.

scholarly journals Highly efficient zinc oxide-carbon nitride composite photocatalysts for degradation of phenol under UV and visible light irradiation

2018 ◽  
Vol 14 (1-2) ◽  
pp. 159-163 ◽  
Author(s):  
Faisal Hussin ◽  
Hendrik Oktendy Lintang ◽  
Siew Ling Lee ◽  
Leny Yuliati
Keyword(s):  
Zinc Oxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Carbon Nitride ◽  
Separation Efficiency ◽  
Visible Region ◽  
Light Irradiation ◽  
Composite Photocatalyst ◽  
Optimum Content ◽  
Composite Photocatalysts

In order to utilize solar light in an efficient way, a good photocatalyst shall absorb both UV and visible light. In this study, a series of composite photocatalyst consisting of zinc oxide (ZnO) and carbon nitride (CN) was successfully prepared through a physical mixing method. The ZnO is an ultraviolet (UV)-based photocatalyst, while the CN is known as a visible light-driven photocatalyst. The effect of zinc to carbon mol ratio (Zn/C) towards the properties and photocatalytic activities was investigated. X-ray diffraction (XRD) patterns revealed that the prepared ZnO-CN composite photocatalysts composed of wurtzite ZnO and graphitic CN. The presence of ZnO and CN made the composites have absorption at both UV and visible region, suggesting the potential application as photocatalysts under both UV and visible light. Fluorescence studies revealed that all ZnO-CN composites showed emission peaks at 445 and 460 nm when excited at 273 nm, but with lower intensity as compared to those of the CN. The lower emission intensity suggested the role of ZnO to reduce the charge recombination and improve the charge separation on the CN. The ZnO-CN composites were further evaluated for photocatalytic degradation of phenol. The amount of degraded phenol was determined by a gas chromatography, in which a flame ionization detector was used in this study (GC-FID). The composite photocatalyst with an optimum content of 1% Zn/C gave almost 1.15 times higher activity than the CN under visible light irradiation. On the other hand, the composite photocatalyst with an optimum content of 50% Zn/C showed 2.6 times higher activity than the CN under UV light. The improved photocatalytic efficiency on the ZnO-CN composite photocatalysts was caused by the synergic effect between ZnO and CN. The ZnO would boost the separation efficiency of photogenerated electrons on the CN, while the CN would enable ZnO to absorb visible light region as the ZnO-CN composites. 

scholarly journals Potential of Using Imidazoline in Recycled Asphalt Pavement

2019 ◽  
Vol 14 (4) ◽  
pp. 521-542
Author(s):  
Robert Jurczak ◽  
Paweł Mieczkowski ◽  
Bartosz Budziński
Keyword(s):  
Asphalt Concrete ◽  
Asphalt Pavement ◽  
Asphalt Mixtures ◽  
Fatigue Performance ◽  
Recycled Asphalt Pavement ◽  
Recycled Asphalt ◽  
Stiffness Modulus ◽  
Optimum Content ◽  
Environmental Considerations ◽  
Freezing Temperatures

The environmental considerations need to be taken into account in any road resurfacing and upgrading project, for example, by reusing asphalt rubble for production of new pavement courses. Mixtures containing larger amounts of recycled asphalt pavement are improved by adding rejuvenator additives. The tests performed on the recycled asphalt mixtures containing lard imidazoline confirm the suitability of this agent for paving applications. Lard imidazoline was found to improve the stiffness modulus, fatigue performance and resistance to the action of water and freezing temperatures. The parameters obtained at the optimum content of additive complied with the criteria defined for virgin asphalt concrete and other mixtures of that kind.

scholarly journals Effects of Mechanical Properties of Concrete with Tio2 and Ggbs

2020 ◽  
Vol 9 (1) ◽  
pp. 1924-1927
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Building Material ◽  
Co2 Emission ◽  
Split Tensile Strength ◽  
The Past ◽  
Sustainable Environment ◽  
Optimum Content ◽  
Strength Tests ◽  
The World

Concrete is the abundant man made material in the world. The quantity of Co2 emission through the industrialized of OPC is almost one ton. The Co2 emission is approximately 7% of the worlds Co2 emission. In order to decrease the Co2 emission and create the sustainable environment we have to develop greener building material. In this the TiO2and GGBS is use in cement on mixing of concrete. In this TiO2 go about as a self cleaning material and the solid with expansion of TiO2 is 1% by mass of the concrete dependent on the past tasks are finished by the scientists and GGBS with 5%, 10% and 15% by mass of cement was prepared. In this research hardened tests are Compressive, Flexural, Split Tensile strength tests of concrete observations mixed with TiO2 and GGBS for optimum content was considered

scholarly journals THE REASONABILITY OF BLUEBERRY CONCENTRATED JUICE APPLICATION IN THE MANUFACTURE OF DRY-CURED PORK

2018 ◽  
Vol 3 (3) ◽  
pp. 4-11
Author(s):  
Oksana A. Kovaleva ◽  
Katherine M. Zdrabova
Keyword(s):  
Chemical Composition ◽  
Moisture Content ◽  
Organic Acids ◽  
Salt Mixture ◽  
Bacteriostatic Effect ◽  
Organoleptic Evaluation ◽  
Anaerobic Microorganisms ◽  
Blueberry Juice ◽  
Optimum Content ◽  
Facultative Anaerobic

The aspects of the blueberry concentrated juice application in the production of dried pork as an ingredient of the salt mixture were studied. The organoleptic evaluation of the obtained products using concentrated blueberry juice with different concentrations of solids was carried out. The chemical composition of the finished experimental products is investigated. The influence of the concentrated juice of blueberries to the number of QMAFAnM on the surface of the product (bacteriostatic effect). It is shown that dry-cured pork, injected with a salt mixture with concentrated blueberry juice, has higher taste and aromatic characteristics, improved consistency. In this work, the chemical composition of experimental samples of dry-cured pork is evaluated. It is shown that the use of concentrated blueberry juice in salting increases the moisture content and essential micronutrients. Was found that the number of mesophilic aerobic and facultative-anaerobic microorganisms depends on the amount of dry substances, in particular organic acids, in concentrated blueberry juice, namely, with an increase in the concentration of blueberry juice used in the salt mixture, the amount of QMAFAnM on the surface of the product decreases. Concentrated blueberry juice acts as an inhibitor of growth of pathogenic microflora. On the basis of the conducted researches the optimum content of dry substances for application of the concentrated juice from blueberries at a salting of dry pork is established.

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