bluuebunny/crossref_metadata_2025 huggingface dataset:
Assessment of Land - Use Change Effects on Future Beekeeping Suitability Via CA-Markov Prediction Model
Authors: Sari Fatih
Published: August 2020

In this study, landuse changes in the Muğla province were determined and future Land Use Cover Change (LUCC) maps were predicted. Because Muğla accounts for 90% of pine honey production in the world, the study area has vital importance for the Turkish (also for other countries) beekeeping sector and this importance reveals the necessity of both monitoring and predicting the LUCC of Muğla in future. This study demonstrates a combined CA-Markov land use change model and beekeeping suitability analysis via Multi-Criteria Decision Analysis (MCDA) to predict the future of beekeeping suitability in Muğla in the Geographical Information Systems (GIS) platform. 2006 and 2012 LUCC maps were used to predict the 2018 LUCC, and transition probabilities between land cover classes were analyzed. A recent 2018 LUCC map was used to demonstrate accuracy analysis of the predicted 2018 LUCC map. Considering the 0.96 Kappa accuracy, a good fit was determined and the CA-Markov model was used to predict the 2025, 2030, 2040 and 2050 LUCC maps. Moreover, using the Analytical Hierarchy Process (AHP), beekeeping suitability assessment was generated. The results indicate that there will be a considerable increase in the urban areas and decrease in grasslands in the future. Related to this, the suitable areas will be decreased by 50 km2 and non-suitable areas will be increased by 76 km2 from 2018 to 2050. The study simulated the beekeeping suitability to guide beekeepers and local authorities towards a better understanding of the reasons for decreasing suitability and developing urgent land use management systems.
Non-Cardiogenic Pulmonary Oedema Following the Use of Gadolinium-Based Contrast Medium: A Case Report
Authors: Nguyen Chilan , Pham Tho
Published: August 2020

Non-cardiogenic pulmonary oedema can be life threatening and requires prompt treatment. While gadolinium-based contrast is generally considered safe with a low risk of severe side effects, non-cardiogenic pulmonary oedema has become increasingly recognised as a rare, but possibly life-threatening complication. We present a case of a usually well, young 23-year-old female who developed non-cardiogenic pulmonary oedema with a moderate oxygenation impairment and no mucosal or cutaneous features of anaphylaxis following the administration of gadolinium-based contrast. She did not respond to treatment of anaphylaxis but made a rapid recovery following the commencement of positive pressure ventilation. Our case highlights the importance of recognising the rare complication of non-cardiogenic pulmonary oedema following gadolinium-based contrast administration in order to promptly implement the appropriate treatment.
Religion als Anreiz für Kooperation
Authors: von der Leyen Victoria
Published: August 2020

Might religion function as an incentive for cooperation? This article defends that religion is an incentive for cooperation from both an evolutionary perspective (based on game-theoretical models) and a philosophical perspective. Religion (defined as god-fearing behavior) can be described as evolutionary advantageous since one refrained from actions perceived as immoral and contrary to God’s will. Under the assumption that god-fearing behavior is equal to cooperative behavior, god-fearing behavior is a corrective for ethical failure. However, even today religion can function as a corrective for ethical failure: religion can dissolve the contrast between morality and self-interest by promoting one’s ability to see an intrinsic value in cooperative, moral behavior.
Performance Analysis of Gough Stewart Platform with 6 Limbs
Authors: Chandrashekhar A. , Satish Babu G.
Published: August 2020

This paper concentrates on widespread study of parallel manipulator. It focuses on optimal designing of manipulator which has a large number of application fields. Optimal design is an important criterion to improve the accuracy of a robot. Through optimal design a robot can achieve isotropic configurations where the condition number of its jacobian matrix equals one. In this we are also concentrating on transmission index and stiffness index along with their plots, which can affect the kinetostatic performance of the robot. In this the singularity of Gough Stewart platform is also studied.
Unique Information about Lubricants
Authors: Voinov Kirill N. , Esbulatova Altyn Z.
Published: August 2020

The positive and negative properties/characteristics of liquid and plastic lubricants are presented here in brief. General aim: to show the ways to improve the positive role of lubricants for mobile junctions, namely, for pairs of friction. At the same time, there are two devices which are represented to make the effective control both the quality and viscosity for lubricant as well. And the new very important effect with the organic lubricant was discovered. It is the electro-magnet property which helps to keep organic lubricant in a zone of friction constantly.
Experimental Study of Spot Weld Parameters in Resistance Spot Welding Process
Authors: Habib Lebbal , Ahmed Reffas S. , Habib Berrekia , Guagliano Mario
Published: August 2020

Resistance spot welding is a comparatively clean and efficient welding process that is widely used in sheet metal joining. This process involves electrical, thermal and mechanical interactions. Resistance spot welding primarily takes place by localized melting at the interface of the sheets followed by its quick solidification under sequential control of water cooled electrode pressure and flow of required electric current for certain duration. In this experimental work the tensile tests and the spot weld diameter were studied. The objectives of this analysis is to understand the physics of the process and to show the influence of the electrical current, weld time and the type material in resistance spot welding process.
Thermal Conductivity of CNT - Wated Nanofluids: a Review
Authors: Akhilesh M. , Santarao K. , Babu M. V. S.
Published: August 2020

In heat transportation applications, water is most commonly used fluid. The efficiency of equipment used in these applications depends on thermal characteristics of water used. The thermal characteristics of water could be upgraded by suspending high thermal conducting solid nanoparticles. In this paper an attempt has been made to know how the use of surfactants and functionalization of carbon nanotube walls can affect the thermal characteristics and stability of nanofluid. A thorough analysis of collected literature revealed that carbon nanotubes have much higher thermal conductivity than any other nanoparticles and hence improve the thermal properties of water when suspended in them. Further it is concluded that suspension of carbon nanotubes in water requires use of surfactant or functionalization of carbon nanotube walls with proper group. By setting optimum pH and better dispersion, better thermal conductivity is possible. Experimental studies in the literature survey reveal that chemical stabilization techniques and physical stabilization techniques together decide the stability of the nanofluid.
An Axisymmetric Contact Problem of an Elastic Layer on a Rigid Circular Base
Authors: Kebli B. , Berkane S. , Guerrache F.
Published: August 2020

An analytical solution is presented to a doubly mixed boundary value problem of an elastic layer partially resting on a rigid smooth base. A circular rigid punch is applied to the upper surface of the medium where the contact is supposed to be smooth. The case of the layer with a cylindrical hole was considered by Toshiaki and all [5]. The studied problem is reduced to a system of dual integral equations using the Boussinesq stress functions and the Hankel integral transforms. With the help of the Gegenbauer formula we get an infinite algebraic system of simultaneous equations for calculating the unknown function of the problem. The truncation method is used for getting the system coefficients. A closed form solution is given for the displacements, stresses and the stress singularity factors. The stresses and displacements are then obtained as Bessel function series. For the numerical application we give some conclusions on the effects of the radius of the punch with the rigid base and the layer thickness on the displacements, stresses, the load and the stress singularity factors are discussed.
Mechanical Properties of Sisal Fibre Reinforced Polymer Matrix Composite
Authors: Francis A. , Rajaram S. , Mohanakrishnan A. , Ashok B.
Published: August 2020

The composite materials plays a vital role in increase the strength and weight reduction purpose. The natural fibers increase the additional strength to the composites. This paper is related to the mechanical properties of the sisal fiber reinforced composites and it is compared with the another preparation of sisal fiber reinforced composite. The graphs shows the comparison about the mechanical properties on the fiber reinforced composites. The strength can be improved by using some melted polypropylene to increase the bonding between the matrix and the fiber. The sample material is immersed in water for twenty four hours and at the same time the properties also measured by using various testing methods. The final comparison indicates the better process for the preparation of the composite.
Rotation, Initial Stress, Gravity and Electromagnetic Field Effect on P Wave Reflection from Stress-Free Surface Elastic Half-Space with Voids under Three Thermoelastic Models
Authors: Abo-Dahab S. M. , Rida S. Z. , Mohamed R. A. , Kilany A. A.
Published: August 2020

The present paper is devoted to investigate the influence of the rotation, thermal field, initial stress, gravity field, electromagnetic and voids on the reflection of P wave under three models of generalized thermoelasticity: Classical and Dynamical coupled model (CD), Lord-Shulman model (LS), Green-Lindsay model (GL), The boundary conditions at stress-free thermally insulated surface are satisfied to obtain Algebraic system of four equations in the reflection coefficients of various reflected waves. It is shown that there exist four plane waves; P
1, P
2, P
3 and P
4. In addition, the reflection coefficients from insulated and isothermal stress-free surface for the incident P wave are obtained. Finally, numerical values of the complex modulus of the reflection coefficients are visualized graphically to display the effects of the rotation, initial stress, gravity field magnetic field, thermal relaxation times and voids parameters.
Growth, structural and optical properties of novel nonlinear optical potassium phthalate di lithium borate (KPDLiB) single crystals
Authors: Mohanraj K. , Balasubramanian D. , Jhansi N.
Published: August 2020

Novel nonlinear optical semi-organic, potassium phthalate di lithium borate (KPDLiB) single crystals were successfully grown by the slow solvent evaporation technique. Good crystalline nature and an orthorhombic structure were confirmed by powder X-ray diffraction and single crystal X-ray diffraction studies. The functional groups of KPDLiB were identified using FT-IR spectrum recorded in the range of 4000 cm−1 to 450 cm−1. UV-Vis spectrum showed transmitting ability of the crystals in the entire visible region. The photoluminescence spectrum exhibited good fluorescence emission in a visible region at 384 nm, 416 nm and 578 nm. The second harmonic generation efficiency of the grown crystal was evaluated from Kurtz powder technique.
Determining the Permissible Longwall Face Advance in the Protective Pillar Conditioning the Liquidation of a Mining Shaft
Authors: Mielimąka Ryszard , Kleta Henryk
Published: August 2020

The presented research subject involved the assessment of the possibility of mining operations within the area of shaft protection pillar with simultaneous liquidation of the shaft. In such a situation, the basic condition is to avoid damage to shaft lining, which can hinder or even prevent safe liquidation of the shaft by backfilling. The procedure to follow in order to assess the possibility and scope of mining exploitation within the shaft protection pillar is demonstrated on the example of shaft X. The applied assessment method involving the possibility and scope of mining exploitation within the protective pillar of the shaft was based on the forecast of rock mass deformation at the shaft site, which was the basis to calculate vertical stresses in the shaft lining and then to compare them with permissible values. The carried out calculations allowed us to determine the permissible face advance of longwall No. 5 at which no damage to the lining and its equipment would occur, ensuring the planned safe liquidation of the shaft by backfilling.
Methods and Proposals for Meeting Energy Needs
Authors: Grebski Wes , Czerwiński Stefan , Kania Jan
Published: August 2020

The article includes a comparative analysis of different methods of solving energy problems especially meeting the demand for electricity. Energy problems became a global concern due to the rapid increase in the world population. Energy consumption reflects the habits of the society and the nature of the economy. The focus of the article is the analysis of the United States (USA) energy economy in terms of meeting the needs of industry and society. It includes a comparison of costs of generating electricity obtained from various sources. It also includes an analysis of opportunities and threats related to the energy sector’s dependence on individual energy sources. Meeting the demand for electricity cannot be solved by increasing only the energy generation. The cost of increasing electricity production is always higher compared to increasing energy efficiency. The impact of energy efficiency of devices on energy management was also assessed. The publication also contains practical conclusions and recommendations regarding energy management on a global scale.
The Influence of an Operating Conditions on the Friction Coefficient in Transportation Machines Drives
Authors: Kasza Piotr , Kulinowski Piotr , Zarzycki Jacek
Published: August 2020

The publication presents the construction of the station for testing the friction coefficient under high pressure and low slip velocity values. These conditions of cooperation of friction pairs occur in the drives of transport machines such as belt conveyors and suspended monorails. The value of the friction coefficient, depending on the operating conditions such as moisture and rock or coal dust pollution, has a significant impact on the correct and efficient operation of such drives. The features of the station allow mapping the operating conditions on a laboratory scale. As part of the research, appropriate friction samples made of rubber or polyurethane were prepared. Referring to the conditions of conveyor operation and conditions of contact of the conveyor belt with the drive drum, the values of unit pressures and values of slip speed occurring in the drum drive of the belt conveyor were determined. A series of laboratory tests were carried out for the friction pair rubber drum lining – conveyor belt cover. The tests were carried out for four different states of friction vapor surfaces, namely for dry and wet samples, as well as for samples in clean or contaminated with stone dust. As a result of the tests, the values of friction coefficients for various surface states were determined, which will be valuable information for designers of friction drive systems of transport devices.
Rehabilitation of Post-Mining Areas in the Bohumin City Area (Czech Republic). Case Study
Authors: Biały Witold , Moni Vlastimil , Gibesova Beata , Stalmachova Barbara , Mikolas Milan
Published: August 2020

Rehabilitation of post-industrial areas involves many areas. The area after hard coal mines, requires many specific actions and funds in order to eliminate any remnants of the former infrastructure that is located in this area. The area of Upper Silesia, which includes areas on both the Polish and Czech borders, belongs to the area where the process of underground hard coal mining is being extinguished. As a result of the completion of mining works, the mine areas and adjacent sites begin to undergo transformations. Thus, the landscape of this area changes, various types of land, residential buildings and roads are destroyed. The activities related to restoring the utility value to degraded areas should be carried out consistently, primarily from their inhabitants’ perspective. The rehabilitation of post-mining area and its proper management can bring great benefits to the city and its inhabitants in the future. The publication presents a proposal for land development solutions for the former hard coal mine in Bohumin, Vrbice district in the Czech Republic.
Subsidies as Financing Opportunities – the Development of Renewable Energy Sources in Poland
Authors: Maruszewska Ewa W. , Navickas Kęstutis , Navickienė Renata
Published: August 2020

As Poland is considered a coal country, renewable energy resources still do not have a significant share in energy production. Further, 14% contribution of renewable energy to total primary energy production in 2020 is endangered. Thus, in order to speed up with renewable energy sources new actions should be stimulated. The aim of the article is to describe the most popular renewable energy installations in Poland and further to search for a case study indicating that an investment in renewable sources is profitable without financial support. The results indicate that prior literature does not present any analysis of profitable renewable energy investment without financial support. It states the need for regulators to implement additional financial support not only on the European Union level but also on the national one.
Art and Religion as Invitation. An Exploration Based on John Dewey’s Theory of Experience and Imagination
Authors: Alma Hans
Published: August 2020

In this essay, the relation between art and religion is explored using the concepts experience and imagination as understood by the American philosopher John Dewey. In Dewey’s view, experience involves both the experiencer and the experienced: it is a phenomenon of the in-between. When we are really touched by what we meet in interacting with our physical and social surroundings, experience acquires an aesthetic quality that opens us to the value and the potential of what we perceive. We can see the factual in light of the possible, thus enriching it with new layers of meaning. We experience this as resonance between us and the world. It is the work of the imagination. Due to their imaginative capacity, humans can aspire to a ‘good life’. This aspiration is discussed in terms of invitation and response. Can we experience ourselves as being invited to respond to this unruly world with attachment and care? Here art and religion come into play. Art is understood as the domain of the possible: it explores the world behind or beyond what we usually accept as fact. An aesthetic experience acquires religious quality when it evokes in us an ideal that guides our sense of self and world, stimulating us to realize our ideals in daily actions. If inspired by imagination, art and religion may evoke intense experiences of resonance and invite us to new ways of connecting and transformative action. This is explored with the help of a hermeneutical circle, a ‘cycle of imagination’.
Literatura De Controversia Religiosa Judío-Cristiana Medieval En Portugal (Siglos Xiii-Xv): Estado De La Cuestión. Discursos Y Motivaciones
Authors: Tavares Alice
Published: August 2020

The case study presented in this article is an analysis of Portuguese literary manuscripts which deal with religious Jewish controversies during the Middle Ages (13th to the 15th centuries). These documents came down to us through the subsequent centuries and are available in the Libraries of Portugal. The article is intended to make known variegated documents of religious controversies over three centuries, while, at the same time, we shall draft a brief presentation of their authors, except for anonymous works. In the second part, we shall proceed with a definition of this particlar literary genre as well as analyze the characteristics and also the common features of the different works. In the end, we shall investigaate the discourses, motivations, and the different authors who have influenced the writing of these medieval controversies.
Energy Trading Perspectives in the Digital Era
Authors: Puskás-Tompos András
Published: August 2020

The aim of the paper research is to identify and improve business models in energy trading by analyzing the current situation and developing scenarios for the evolution of business models in the Digital Era. It is very important to analyze, identify and track those directions that we believe will drive energy trading in order to be able to design and create new sustainable business models. We highlight the possibilities and ways of improving the energy trading, analyzing the rapid evolution of the field, generated by the emergence of several new factors that can influence this industry. Beside those directions at which electricity trading is heading in the Digital Era, the research also describes main innovations in the field such as Smart Grids, Blockchain Technology, Peer-to-peer trading platforms and Demand Response through which the purpose is to attract final consumers to the energy trading on web platforms or mobile applications with which they can properly control their electric appliances and self-generation units in their homes, all these supervised and guided by artificial intelligence. The type of research proposed to identify the current condition and to be able to develop new trading models is empirical research through qualitative analysis. Beyond incentives and monetary benefits, the focus is on final consumer education and increased awareness towards a more conscious, optimal and rational consumption of electricity that can lead to both a better use of the energy production from renewable sources and a reduction of pollutant fossil fuel electricity generation and carbon dioxide emissions without endangering the proper functioning of the electricity systems. Previous researches are based more on incentivizing or penalizing end consumers in present paper, more emphasis is placed on attracting the end consumer to his own electricity trading through mentioned innovation, but also supervised and guided by artificial intelligence.
Public policies in the First District of Bucharest - Sustainable solutions for increasing energy efficiency
Authors: Munteanu Răzvan-Aurelian
Published: August 2020

The paper represents an analysis of the public policies implemented in the First District of Bucharest related to the energy efficiency. Energy represents a strategic factor for the socio-economic development of Romania and finding the best solutions for increasing energy efficiency will contribute to the objectives for durability and competitiveness in the European Union. The importance of the theme is given by the requirement of the European Union through Energy Efficiency Directive that require member states to set up plans at every three years and evaluate the progress towards energy efficiency annually. Also, for the next period, 2021-2030, all member states must elaborate the 10-year integrated national energy and climate plan (NECP), presenting the solutions in order to meet the different targets for 2030, including energy efficiency. The objective of the article is to find the best solutions for increasing the energy efficiency, having as case study the 1-st District of Bucharest. The author is presenting three solutions, as follows: multistorey thermal rehabilitation, domestic elevators modernization, individual houses thermal rehabilitation. The impact of the solutions presented in the paper are the following: decrease of energy consumption, decrease of CO2 emissions, safety increase.
The valences of improving the quality of life in the new logic of leadership
Authors: Zavera Ioana Coralia
Published: August 2020

The literature regarding the new organizational philosophies has constantly enriched and has approached the challenges related to the desire to increase the organizational sustainability. On this thematic background, in which is increasing the role of the decision makers who move the organizations from the place they are to where they should be, the issues such as the attitude, the organizational behavior, the positioning of the firm actor at the level of the leadership architecture becomes the priority topics. In the context in which specialists have more and more arguments to claim that a new techno-industrial paradigm has been advanced (one specific to the fourth industrial revolution) one can even speak of drivers that boost analysts from the academic environment but also from business and institutional decision makers to quantify the impact that progress can have on cognitive skills, aptitudes and abilities. A leader must hold the organization and guide its employees in a turbulent and uncertain environment. For this, it is necessary for them to develop a comprehensive vision on how technology affects the quality of life of their employees and how to reshape the economic, social, cultural environments at the macro level. The present paper aims to highlight the main challenges of leadership in relation to the fourth industrial revolution, but also what are the transformations through which it is necessary to undergo it for a good correlation of human capital with technological progress and moreover with those indicators that fall under the umbrella of quality of life. The focus is on new skills, creativity, innovation, so that new business models can be developed and applied in a constantly changing environment.
Identifying and capitalizing new sources of competitive advantages is a vital prerequisite for corporate sustainability
Authors: Jianu Galav Roberta-Laura
Published: August 2020

On both the research agendas of the specialists in the academic field and those of the decision makers in the field of public policies, there are a series of topics of reflection among the most provocative which calls on researchers to identify solutions to new challenges. These include the prevalence of topics such as: threats to climate balance, deepening inequalities in welfare and prosperity, paradigm shifts in management and leadership, the emergence of on demand economy, just transition or the new scale of competitive advantages. At the microeconomic level, one of the most complex issues is that of business sustainability, which, under the conditions of the new global economic picture, must be equally efficient, economically, sustainable, socially, and resilient from an ecological point of view. Despite the most renowned experts analyzing the concept of competitive advantage, having highlighted the epistemological and praxiological foundations and clarified the variables on which its scope depends, the regional and global economic picture in dynamic change makes the analytical space continue. for this thematic area. This paper starts from the methodological assumption that the decision makers at the level of the companies must ensure the possible but synergistic combination between: the objective of maximizing the profit and the one of taking into account the plenary of maximizing the sales or of extending the relational capital. The main purpose of this paper is to study the deepest changes at the microeconomic level of the competitive advantage scale, the factors that influence these changes and propose a series of ways by which the companies that operate in Romania can be repositioned sustainably at the level of the most powerful regional supply chains.
Determination by the Settlement Systems of the Required Collateral Imposed to Participants
Authors: Baranga Laurentiu Paul , Zalinca Iulian
Published: August 2020

The dynamics of the increase in volume and amount of the financial or commercial transactions during the last decennials has amplified the role of clearing and settlement systems, along with the payment ones. From the quality of these systems as a financial markets stability provider also derives the concern for the management of financial risks mainly generated by the participants in these systems. The clearing-settlement systems, operated by infrastructure entities of the capital markets, ensure, within certain limits, a risk management for the incidents that could occur in the settlement activity regarding the financial transactions concluded between participants. We are going to present a methodology for determining the required collateral that must be maintained/updated by the debtor participants of a clearing-settlement system in order to ensure a robust management of the risks that could occur in the settlement operations. This methodology can be applied by any infrastructure entity of the capital market that manages collateral systems to limit the number of cases of settlement fails in financial transactions.
Trends in the Development of Organic Farming in Poland and Latvia Compared to the EU
Authors: Pawlewicz Adam , Brodzinska Katarzyna , Zvirbule Andra , Popluga Dina
Published: August 2020

The development of organic farming is determined by many factors. On the one hand, it is an increase in demand for food produced in this production system, on the other it is a subsidy system for organic farming under the CAP. The purpose of the article is a comparative analysis of the direction of changes in the development of organic farming in Poland and Latvia compared to the EU in the years 2000-2017. Information was analysed on the organic farming i.e. the area of organic crops, the number of certified farms and organic retail sales, based on FIBL data from the years 2000–2017. An analysis of the trend of changes in organic farming in Poland and Latvia indicates that the development of organic farming in both countries has clearly accelerated after their accession to the EU and after covering organic farming by the CAP support system. However, the case of Poland is definitely different from the trend of changes in organic farming in Latvia and in the EU, where both the number of organic farms and their area increased, with the simultaneous development of the organic food market. There are many indications that mistakes were made in the organic farming subsidy system.
Awareness of Integrated Soil Fertility Management Practices in the Savelugu Municipal of the Northern Region of Ghana
Authors: Abukari Ammal , Abukari Rahamatu
Published: August 2020

In sub-Saharan Africa intensifying small-scale farming is essential in addressing poverty related issues in rural communities and the degradation of natural resources. Integrated Soil Fertility Management (ISFM) are the best practices used to improve the productivity of crops whilst maximizing agronomic efficiency of inputs applied and hence contributing to sustainable intensification. ISFM usually include the appropriate use of inorganic fertilizer and organic resources, good agronomic practices and appropriate use of germplasm. The survey was carried-out on the awareness of Integrated Soil Fertility Management practices in the Savelugu Municipal of Northern Ghana to study the awareness of integrated soil fertility management practices amongst farmers through the administration of questionnaires. A multistage method of sampling was used in selecting thirty (30) respondents randomly from five (5) selected communities namely Jana, Yapalsi, Diari, Nabogu and Gushie to make up a total sample size of 150 respondents. Frequency distribution and percentages were used to represent the data. Correlation analysis was used to test for the relationship between awareness, educational level and household size. The survey showed that majority of the respondents at ages between 21 and 30 years were married and majority with household size of 3 to 5 as well as primary and secondary education. Farming activities were carried-out by hand (80%). Majority of the respondents (43.3%) were informed about ISFM through demonstrations and 20% of the farmers apply inorganic fertilizer. About 85.5% of the respondents were aware of ISFM. The research also revealed that ISFM improves production and supports finances of respondents. The assessment of respondents’ perception of ISFM revealed a positive agreement of the effect of ISFM on soil health as well as improved production. In conclusion, it is thus suggested that it is needful for the involvement of the government on the adoption of ISFM via Non-Governmental Organisations (NGOs) locally and or internationally for a suitable advancement and to guarantee a sustainable environment with a world-wide corporation for improvement.
The Effect of separated Expansion Chamber Parameters on Exhaust Pressure Oscillations in Single Cylinder Motorcycle Engine
Authors: Banis Kārlis
Published: August 2020

This paper investigates the effect of separated exhaust expansion chamber parameters on pressure oscillations in spark-ignited internal combustion (IC) gasoline engines. It is known that exhaust expansion chambers are becoming increasingly more popular among both – original equipment (OE) and aftermarket equipment (AE) exhaust system manufacturers for performance-oriented motorcycles equipped with mainly single cylinder engines, but the companies are reluctant to reveal any detailed principles of operation of the mentioned expansion chambers. The subject of this research is the type of expansion chamber (separate) as used on performance-oriented motorcycles, particularly its’ effect on exhaust pressure pulsations as different chamber volumes, locations and passage sizes are tested. Time-dependent computational fluid dynamics (CFD) analysis was carried out in Solidworks Flow Simulation environment on a simplified exhaust header pipe model imitating engine operation at full load and steady speed. Honda CRF450R motorcycle engine was used as the example and fully defined using a 1D engine performance calculator software to determine the combustion chamber pressure and exhaust valve lift at any given crankshaft position. Volume flow rate of exhaust gasses at the header pipe inlet was calculated based on engine parameters and operating speed. The average pressure values with respect to physical time were measured and graphed across the header pipe inlet cross-section. Eight different header pipe and exhaust expansion chamber combinations were modelled, tested, and results compared at low, medium and high engine speeds. It was found that the presence of exhaust expansion chamber tends to dampen the amplitude and decrease the frequency of pressure oscillations generated at the opening of the exhaust valve(s). Observations show that the addition of an expansion chamber as per design of performance-oriented motorcycles helps to decrease the negative effect of engine tuning while also dampening the positive effect.
Four-link Spiral Model in the Concept of “Smart Specialization” Innovative Industrial Development
Authors: Chernova Olga , Klimuk Vladimir , Lazdins Andrejs
Published: August 2020

One of the mechanisms for enhancing innovative processes in the industry is the application of the concept of the “four-link spiral”. In contrast to the 3-link spiral, this model as one of the most important components includes a “society”, acting as one of the actors of innovative transformations. Firstly, it is society that is the main consumer of innovative products being created and, thereby, establishes “requirements”, forming demands for the quality and parameters of future products; secondly, society, in turn, acts as the initiator and generator of innovations, forming the so-called “social capital” necessary for the implementation of directly innovative transformations. In this scientific work, the problems of the formation of a “smart specialization” strategy for the innovative development of the industrial sector of the national economic system based on the application of the four-link spiral concept are investigated. A system of quantitative indicators for assessing the innovative level of industrial development is presented. The experience of introducing the concept of a four-link spiral as a mechanism of innovative development of industry (on the example of the Republic of Belarus and the Russian Federation) is given. The aim of the article is to describe innovation processes in the Russian Federation and the Republic of Belarus and to develop an innovation transfer model.
Organizational innovation in the context of family farms: lean diagnosis
Authors: Aguiar Ana , Silva Luisa , Parente Cristina , Costa Cristina
Published: August 2020

Family farming has been on the agenda worldwide. Portugal is no exception. Act No. 64/2018, published in 2018, establishes the Family Farming Statute. Its preponderance in food and in the sustainability of families and territories has been reinforced by the sustainable development paradigm. However, competitiveness constraints assigned to the production system is often seen as an obstacle. Combining the theoretical frameworks of integrated agriculture and work organizations, we offer a lean sociological perspective on family farms producing lettuce. We concluded that their production system is characterized by a set of innovative practices very close to a lean approach. However, there is room for improvements in a production system that seems to maintain a family-based workforce and traditional know-how.
Propuesta para sostenibilidad del servicio ecosistémico hídrico en sistemas productivos del grupo asociativo ASOENSAY
Authors: Giraldo Brito Johanna
Published: August 2020

En las zonas rurales la oferta de agua proviene de los servicios ecosistémicos que permiten la distribución del recurso en actividades agrícolas, pecuarias y domésticas, las cuales generan alteraciones en su calidad y disponibilidad a largo plazo. Deterioro que algunos estudios fundamentan provienen principalmente de la cadena productiva del sector agrícola; este contexto conllevó a estructurar un modelo que coadyuve en la sostenibilidad del servicio ecosistémico hídrico. Para este proceso, se caracterizaron las fuentes abastecedoras de las fincas que conforman el grupo asociativo ASOENSAY en la vereda San Isidro a través de un muestreo físico-químico y microbiológico, aunado con una encuesta estructurada que permitió la recolección de información concerniente con usos del agua y prácticas que los productores consideraron viables a implementar según su dinámica socio-económica y productiva.
Los resultados establecieron en términos de índices de calidad que el agua es buena y, a nivel de contaminación las cualificaciones oscilaron entre baja y muy baja, lo que fundamentó que la disponibilidad del servicio ecosistémico hídrico y el beneficio que los productores obtienen al aprovechar características de calidad y cantidad para suplir actividades propias del entorno rural, corresponda con una propuesta de sostenibilidad hídrica que evidenció los usos del agua como una variable que condicionó la oferta del recurso; frente a esto, en el modelo establecido se determinaron un conjunto de medidas de manejo que permitieron equilibrar la relación oferta-demanda. Concluyendo que el agua a la cual se accede presenta características favorables que permiten dinamizar las actividades productivas, razón por la que los productores deben facilitar la implementación de prácticas preventivas, de mitigación y compensación que permitan garantizar la disponibilidad del servicio ecosistémico hídrico para generaciones futuras.
COVID-19 en aguas residuales y potables: análisis de la situación actual
Authors: Sánchez Ramírez Javier Eduardo
Published: August 2020

El siguiente análisis pretende mostrar el panorama actual a nivel mundial relacionado con la presencia del Covid-19 en aguas residuales y potables. Muestra información recopilada de organismos oficiales o adaptados de estudios de investigación que se están llevando a cabo actualmente.

Al inicio de la pandemia, en Europa un grupo de científicos holandeses del Instituto de Investigación del Agua KWR encontraron rastro del coronavirus en las aguas residuales de una ciudad de Países Bajos antes de que se informaran de los casos de Covid-19. A partir de este momento se ha iniciado una carrera por parte de muchos centros de investigación y empresas del ciclo integral del agua, orientada a demostrar que el virus no está activo en las aguas residuales y potables. Desde el KWR, los científicos aseguran que “el agua potable está muy bien protegida contra todos los virus, incluido el nuevo coronavirus”. Es importante resaltar que el agua no está listada como una de las vías de transmisión del virus que recoge la Organización Mundial de la Salud (OMS).
Revolución 4.0 y las revistas científicas
Authors: Ramírez Gutiérrez Julian Adolfo
Published: August 2020

La tecnología presenta un escenario de cambios en el contexto editorial, producto de la aplicación de la inteligencia artificial (IA), las técnicas de análisis de grandes volúmenes de información (BigData), las telecomunicaciones de altas velocidades, la computación en nube y la alta automatización de procesos, avances que son considerados la cuarta revolución tecnológica o tecnologías 4.0.

Las tecnologías 4.0 sumadas a la amplia difusión del conocimiento, el número de investigadores en sectores públicos y privados, la elevada inversión en I+D+i (Investigación, Desarrollo e innovación); generan un diluvio de datos con la posibilidad de crear un amplio conjunto de métricas objetivas para le evaluación de la producción científica, las publicaciones, los autores y las temáticas entre otros aspectos que podrían ser de interés para evaluar el impacto de todos los actores en el sistema de producción de conocimiento.
Flowering problems and their possible solution in cassava breeding
Authors: Ibrahim Yasmin , Baguma Yona , Abincha Wilfred , Gibson Paul , Edema Richard , Bisikwa Jenipher
Published: August 2020

Six elite cassava clones were chosen from cassava breeding program at the National Crops Resource Research Institute (NaCRRI) based on their flowering characteristics and seed set. The clones were planted in randomized complete block experimental design with 3 replications. The floral biology of these cassava clones were studied, focusing on morphological traits and developmental timing. Since cassava develops branches in levels, data was sourced from the 1st level of branching through the 4th level of branching. The result indicated that days to branching generally varied among all the genotypes studied, indicating the need to use different planting dates for different genotypes to ensure synchronization of flowering. The time difference among genotypes from branching to visible inflorescence was not larger than one and a half days and this difference did not seem to be a factor for synchronization. The general number of female flowers was low in all genotypes across branching levels. This suggests there is a need to apply techniques that could enhance flowering in cassava. Conversely, the number of male flowers outnumbered the female flowers, suggesting that male flower production may not be a limiting factor to hybrid seed production. The male flower opened 20 to 30 days later after the opening of the female flowers. This calls for delayed planting of the early flowering genotypes when used as female parent. It was recommended that in order to synchronize flowering, the late flowering genotypes have to be planted ahead of the early flowering genotypes. In addition, applying techniques such as growth regulators, red light and finding the most optimal locations for flowering is recommended for further study as a way of enhancing flowering among cassava genotypes.
Pemodelan Cluster Loyalitas Customer Menggunakan Algoritma K-Means Dengan Parameter LRIFMQ
Authors: Utomo Aloysius Matz Teguh
Published: August 2020

Loyal customers are one of the factors that determine the development of a business. Therefore, businesses need a strategy to keep customers loyal, even making customers who were previously less loyal to become more loyal. The strategy used must be right on target according to customer segmentation. The purpose of this paper is to model a cluster of customer loyalty to help businesses in making the right decisions of marketing strategy. Segmentation is done using the k-means algorithm with LRIFMQ (length, recency, interval, frequency, monetary, quantity) as parameters, and the CLV (customer lifetime value) of each cluster is calculated. Data obtained from PT. XYZ (a company engaged in food processing) for one year (1 January 2019 - 31 December 2019), with 337.739 transactions, and 26.683 customers. AHP (analytical hierarchy process) method is used for LRIFMQ weighting because this method has a consistency index calculation. The silhouette coefficient is used to calculate the cluster quality and determine the optimal number of clusters. The best results are obtained with the silhouette coefficient value of 0,632904 with the number of clusters 6.
Automatic Room Temperature Regulator for Making Tempe Based on Arduino with Fuzzy Logic Method
Authors: Hidayah Mujib , Prihartono Edi , Santoso Budi
Published: August 2020

The main obstacles of the tempe producers in fermentation process are the uncertain temperature and weather factors, if in the cold temperatures of tempe producers tend to still use manual way to keep the temperature in tempe, that is by covering the surface using cloth, newspaper or other cover because for the fermentation process in tempe temperature required ranges between 30-35o C and humidity below 70%. With unstable temperature can certainly affect the duration of tempe fermentation process. For that required a tool that can stabilize the temperature of the room on tempe fermentation process. Automatic temperature control for the manufacture of tempe is using fuzzy logic method as a smart control system, Arduino Mega 2560 as a microcontroller, DHT11 sensor as the detector temperature and humidity of the room, YL-69 & YL-38 sensors to detect the tempe water content that has become tempe parameter already mature or not, and heater and fan as actuators to stabilize the room temperature. Automatic temperature regulator for tempe making with fuzzy logic method is able to stabilize room temperature in fermentation process tempe and success rate of this tool in category good enough because get value from precision equal to 65%, recall 100%, and accuracy equal to 65%
Decision Support System for Determining the Feasibility of a Program Keluarga Harapan Receiver Using the Analytic Network Process Algorithm
Authors: Izzah Khoirul , Khalid Khalid , Rolliawati Dwi
Published: August 2020

One of the goals of the Indonesian state is to prosper the people by reducing total poverty. To overcome poverty levels, the Indonesian government created a policy of the Program Keluarga Harapan(PKH) in the form of subsidized assistance. PKH beneficiaries are families registered in Basis Data Terpadu(BDT) data that meet the criteria of pregnant(K1), childhood(K2), elementary school(K3), junior high school(K4), high school(K5), elderly(K6), and disability(K7). This study aims to assist the Bojonegoro Social Office in choosing the right target in determining the eligibility of PKH recipients by automation. PKH recipient decision support systems are developed with PHP, MySQL databases, and the Analytic Network Process (ANP) algorithm. By using test data of 3 villages namely Bangilan Village, Sembung Village, and Tapelan Village, Kapas District, Bojonegoro Regency in 2019, the system was able to provide PKH recipient data recommendations in accordance with the criteria weights requirements. Based on the confusion test matrix, the SPK precision level is 39.64% (moderate), recall is 39.29% (moderate), and accuracy is 69.12% (high). While testing system functionality using black box testing resulted in 93.35% of the system running well. This shows that the PKH recipient Decision Support System is feasible to be implemented in the Dinas Sosial Bojonegoro