scholarly journals THE DISCRETE MODEL FOR THE FORMATION OF COMPANY’S STRATEGY ON THE SOLID BIOFUEL MARKET

2018 ◽  
pp. 185-192
Author(s):  
Nataliia Halysh
Keyword(s):  
Data Analysis ◽  
Market Share ◽  
Discrete Model ◽  
Interval Data ◽  
Production Cycle ◽  
Special Method ◽  
Wood Pellets ◽  
Solid Biofuels ◽  
Solid Biofuel ◽  
Range Of Values

Introduction. In the article, the author pays attention to the research of the actual data of the enterprise, which produces the solid biofuel, with the isolation of raw material supply processes and the formation of the finished products’ cost structure. A system of differential equations is developed and presented. It reveals the influence of these factors and the dynamics of the share of the company's presence on the market of solid biofuels. The method of interval data analysis is substantiated. This method gives adequate results in the calculation of forecast intervals of the indicators and influences the adoption of strategic decisions on the presence of the company in the market of commodity products. An interlinear discrete model of the dynamics of the company's share for 2016 and 2017 is constructed, as a result of which its suitability for implementation in the activity of the enterprise is checked and taken into account while developing the strategy for its development. Purpose. The article aims to construct an interval discrete model of a company's market share at solid biofuels’ market using the system of difference equations and analysis of interval data. Based on the justification of the expediency of the chosen method of research, the other goal is identified. It is to develop the proposals for the implementation of this model in the activities of the enterprise for the production of wood pellets as the basis for providing a management strategy of this enterprise in uncertain external environment. Method. Such standard methods of scientific research as method of systematization, method of processing, method of summation of data, method of definition of general summary synthetic indicators, method of presentation of the results in the form of statistical tables, method of graphs and figures have been used in this research. A special method of data analysis based on interval arithmetic and interval data analysis has been implemented. Results. In the paper, scientific and methodological approaches to developing a strategy for the activities of enterprises producing solid biofuels have been improved. The proposals, which are given to the wood pellets’ enterprises, are based on the use of the developed interval model of market share dynamics of the enterprise at the solid biofuel market. It gives the ability to determine the range of values of the expected dynamics of this market share, depending on the cost of its products and the range of values of the market share by the consumption of raw materials. The results and recommendations, which are described in this article, can be used by enterprises producing solid biofuels (in particular, wood pellets) with a differentiated production cycle, which includes input and output logistics.

scholarly journals Evaluation of Urban Tree Leaf Biomass-Potential, Physico-Mechanical and Chemical Parameters of Raw Material and Solid Biofuel

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 818 ◽  
Author(s):  
Krzysztof Mudryk ◽  
Marcin Jewiarz ◽  
Marek Wróbel ◽  
Marcin Niemiec ◽  
Arkadiusz Dyjakon
Keyword(s):  
Bulk Density ◽  
Urban Areas ◽  
Raw Material ◽  
Leaf Biomass ◽  
Tree Leaves ◽  
Wood Pellets ◽  
Urban Tree ◽  
Solid Biofuels ◽  
Solid Biofuel ◽  
Tree Leaf

The paper presents the results of research aimed at evaluating the possibility of using selected tree leaf species to produce solid biofuels. The possibility of production of qualitative solid biofuels from urban tree leaves meets the expectations of the municipal sector. Collection of tree leaves in urban areas is very often necessary for road safety reasons, the need to collect biomass rich in dust and pollution as well as biomass infested with pests. The production of solid biofuels from tree leaves allows for effective management of this raw material with energy recovery. The performed research indicates such a possibility, and the obtained ash is used as a soil improver. The conducted research showed that the biomass of leaves of five tree species used in the experiment can be a source of raw materials for production of qualitative biofuels. The obtained pellets were characterized by properties comparable to those of classical wood pellets. The lower heating value of the obtained pellets ranged from 14.5 to 15.5 MJ∙kg−1. Physical properties of the obtained pellets described by bulk density (BD 600–660 kg∙m−3), mechanical durability (DU 90–96%), moisture (Mar 10–12.5%) indicate that these products can be used in existing combustion equipment. Preliminary analysis of the obtained ashes (determination of ash melting point, bulk density) indicates that they should not cause difficulties in ash removal systems from the combustion chamber.

scholarly journals PREDICTION FOR TOTAL MOISTURE CONTENT IN WOOD PELLETS BY NEAR INFRARED SPECTROSCOPY (NIRS)

10.6036/9935 ◽  
2021 ◽  
Vol 96 (3) ◽  
pp. 296-301
Author(s):  
MIGUEL ÁNGEL SÁNCHEZ GATÓN ◽  
MARIA ISABEL CAMPOS LABADIE ◽  
JOSE JUAN SEGOVIA PURAS
Keyword(s):  
Quality Control ◽  
Infrared Spectroscopy ◽  
Moisture Content ◽  
Near Infrared Spectroscopy ◽  
Near Infrared ◽  
Wood Pellets ◽  
Solid Biofuels ◽  
Solid Biofuel ◽  
Non Destructive ◽  
Total Moisture Content

Mankind consumes as many fossil fuels per year as nature produced during a million years. Furthermore, energy consumption has tripled in the last 60 years, and is expected to be doubled in 2050, due to the technological and economic takeoff of large emerging powers. In light of this scenario, a change in energy policies should be aimed to promote energy efficiency and the use of sustainable energy resources, such as bioenergy, safely and environmental friendly. Biomass fuels take a main role in the EU's energy and climate policies, aimed at reducing CO2 emissions and combating Climate Change. Quality control of biofuels and knowledge of their characteristics reach a large relevance in any industrial application based on the energy use of biofuels. NIRS technology (near infrared spectroscopy, Near Infrared Reflectance Spectroscopy) is based on the interaction between electromagnetic radiation and material, and now is presented as an encouraging technological tool for quality testing of solid biofuels, since it is a non-destructive and much faster and cheaper analytical technique than traditional ones, which are based on current ISO standards. That interaction appears as spectral vibrations (energy absorption or absorbance) that are properly processed, allowing to measure the most important physical-chemical properties of solid biofuels in a fast, simple and non-destructive way. Wood pellet is the highest quality solid biofuel in the current biomass market, which is regulated by ENplus® certification scheme in the European-wide, ensuring the quality of product to consumers. Low heating value is the most important parameter of solid biofuel, and is strongly linked to total moisture content, so the control of moisture is key factor during pelletizing process. The original research carried out in this work allows to present the development of a NIRS prediction model for total moisture in wood pellets, in the range of values of 5 – 10 %, providing a much faster and more automated methodology for product quality control, both in production plants of wood pellets and in power plants with wood pellets as fuel. Keywords: near infrared spectroscopy, wood pellets, quality control, moisture, prediction model

scholarly journals Doing Good Better: Impure Altruism in Green Apparel Advertising

2019 ◽  
Vol 11 (20) ◽  
pp. 5762 ◽  
Author(s):  
So Young Song ◽  
Youn-Kyung Kim
Keyword(s):  
Data Analysis ◽  
Product Quality ◽  
Discrete Model ◽  
Online Survey ◽  
Marketing Strategies ◽  
Theoretical Development ◽  
Sustainable Lifestyle ◽  
Impure Altruism ◽  
Sustainable Behavior ◽  
Communal Harmony

In this study, we identify impure altruism as a duality of altruistic and egoistic warmth. We examine how these feelings motivate consumers to buy green apparel in response to advertisements. We test the effectiveness of the message orientation and its interactivity with a beneficiary and propose modeling impure altruism as the reason why consumers purchase green apparel. The study uses a quasi-experiment to estimate a comparison effect among advertising stimuli. We conduct an online survey among US consumers that garnered 586 responses for the main data analysis. The results indicate that egocentric appeals increase perceived uniqueness and that human beneficiary appeals lead to higher communal harmony. The findings show that communal harmony and global wellbeing prompt altruistic warmth and that uniqueness and product quality encourage egoistic warmth. Notably, altruistic warmth contributes to egoistic warmth, which indicates the existence of impurely altruistic consumers. Both altruistic and egoistic warmth lead to the intention of purchasing green apparel. We recommend “feel-good” marketing strategies to publicize the benefits of a sustainable lifestyle. The study contributes to the theoretical development of sustainability and can serve as an extension of a discrete model of altruism and egoism on consumers’ sustainable behavior.

scholarly journals Modularity of Pressing Tools for Screw Press Producing Solid Biofuels

10.14311/1558 ◽  
2012 ◽  
Vol 52 (3) ◽  
Author(s):  
Miloš Matúš ◽  
Peter Križan
Keyword(s):  
Mathematical Model ◽  
Modular Design ◽  
Screw Press ◽  
Axial Forces ◽  
Solid Biofuels ◽  
Solid Biofuel ◽  
Complicated Process ◽  
Comprehensive Study

This paper focuses on the development of the newly-patented structure of a screw briquetting machine for compacting biomass into a solid biofuel. The design of the machine is based on the results of a comprehensive study of the complicated process of biomass compaction. The patented structure meets two main goals: the elimination of axial forces, leading to increased lifetime of the bearings, and the new modular design of a pressing chamber and tools with their geometry based on the application of a mathematical model.

scholarly journals Market share of credit facilities and their impact on the profitability of banks in the Kingdom of Saudi Arabia – An applied study on Saudi banks –: الحصة السوقية للتسهيلات الائتمانية وأثرها على ربحية المصارف في المملكة العربية السعودية – دراسة تطبيقية على المصارف السعودية –

2020 ◽  
Vol 4 (11) ◽  
Author(s):  
Amal Abdullah Abdullah Al- Qahtani
Keyword(s):  
Saudi Arabia ◽  
Data Analysis ◽  
Market Share ◽  
Panel Data Analysis ◽  
Rate Of Return ◽  
Return On Assets ◽  
Kingdom Of Saudi Arabia ◽  
Return On Equity ◽  
Applied Study ◽  
Descriptive Approach

The objective of this study is to reveal the effect of the market share of credit facilities on the rate of return on assets and the rate of return on equity in Saudi banks. The study sample consisted of all Saudi banks, which included twelve banks listed on the stock market of 2008 and before 2018. The study relied on the analytical descriptive approach by using the Panel Data Analysis. One of the main findings of the study is that the market share positively affects the rate of return on assets, while the market share of credit facilities does not affect the rate of return on equity. Among the most important recommendations in the study is the need to reduce the rate of return on credit facilities, which may contribute to increasing its market share, which will increase the contribution to the achievement of profits and work on the balance between liquidity and profitability by maintaining the market share in the volume of deposits to give the bank the ability To increase credit facilities and thus increase profits in banks and to conduct further research related to the market share of credit facilities in Saudi banks.

scholarly journals Preparation of cyclodextrin nanoparticles and evaluation of its effect on the capacitation of bovine spermatozoa used in the in vitro fertilization

2018 ◽  
Vol 9 (4) ◽  
pp. 112
Author(s):  
Heba F Salem ◽  
Mai Raslan ◽  
Hanaa Suliman ◽  
Tamer Essam ◽  
Saber Abd-Allah
Keyword(s):  
Data Analysis ◽  
In Vitro Fertilization ◽  
Interval Data ◽  
Fertilization Rate ◽  
Vitro Fertilization ◽  
Bovine Spermatozoa ◽  
The Media ◽  
Biomedical Interventions ◽  
Positive Effect

<p>This study was conducted to produce nanosized cyclodextrin (NCD) and assess its effect on bovine spermatozoa during In vitro fertilization (IVF) to optimize the capacitation media for successful IVF. Therefore, Four cyclodextrin formulations were prepared and characterized. Data analysis revealed the best formula (F2) showed a smallest particle size (15 nm), zeta potential (-37 mv), and higher yield percentages (95%) was selected for spem capacitation. Motile spermatozoa were separated from frozen-thawed semen by a swim-up procedure and capacitated in IVF-TALP medium with different formulae of NCD or CD or without treatments (control) and incubated for 3hours(hr) at 38°C and evaluated every one (hr) interval. Data analysis revealed that the formulation of cyclodextrin nanoparticles (F2<strong>)</strong> after (2hr) incubation in the media gave best effect on sperm capacitation and acrosme reaction (AR) and effect of sperm treated with NCD on fertilization rate was evaluated. The results showed that the proportion of Oocytes fertilized was increased significantly in F2 (60%) than in the control (35%), and cyclodextrin group (50%) groups (<em>p</em>&lt;0.05). It could be inferred from this investigation that cyclodextrin nanoparticles can be used for biomedical interventions in bovine spermatozoa. NCD improve sperm motility, viability, and (AR), also fertilization rate of sperm treated with NCD increase. So NCD gave positive effect on sperm functions during IVF. </p>

Sign in / Sign up

Export Citation Format

Share Document