scholarly journals INVESTIGATION OF PHYSICAL-MECHANICAL PROPERTIES AND IMPACT ON SOIL OF GRANULATED MANURE COM-POST FERTILIZERS

2019 ◽  
Vol 27 (3) ◽  
pp. 153-162 ◽  
Author(s):  
Ramūnas Mieldažys ◽  
Eglė Jotautienė ◽  
Algirdas Jasinskas ◽  
Juozas Pekarskas ◽  
Raimonda Zinkevičienė
Keyword(s):  
Mechanical Properties ◽  
New Technology ◽  
Animal Manure ◽  
Raw Material ◽  
Time Period ◽  
Agrochemical Properties ◽  
Limit Strength ◽  
The Difference ◽  
Phosphorus And Potassium ◽  
The Impact

In recent years, the European countries recycle only 5−7% of bio-waste. One activity of the biological waste disposal is granulation. The production of fertilizer from animal manure with supplement represents an important area of environmentally friendly bio-fertilizer production. This paper presents an investigation of estimation manure compost physical-mechanical properties for reuse of organic waste − cattle and cow manure, sugar production waste − molasses through new technology pellets production and of granulated fertilizer impact on soil. The experimental manure samples produced by industrial methods and samples produced in the laboratory from the time period of 2014 to 2017 were investigated. The following physical – mechanical characteristics were estimated: biometric indicators (dimensions, mass), volume and density of raw material and pellets, material and pellet’s humidity and pellets strength. Experiments results have shown that the difference in limit strength between experimental and industrial organic compost pellets was about 5%. Experiments of fertilizers on the impact on soil shown that the amount of nutrients added to the soil depends on the rate of the granulated compost fertilizer. As the norm increases, organic carbon, humus, mobile phosphorus and potassium increase in soil. Increases in soil fertility, improved agrochemical properties, soil organic matter accumulation and humus increase. Granulated compost fertilizers have no effect on soil acidity. The presented results could be helpful to the development of the fertilizing process by the granulated compost fertilizer for improvement of soil quality in small farms.

scholarly journals Efektywność produkcji FAME na podstawie wymagań normy ISO 14045:2012

Nafta-Gaz ◽  
2021 ◽  
Vol 77 (3) ◽  
pp. 208-214
Author(s):  
Michał Pajda ◽  
◽  
Wojciech Mazela ◽  
Keyword(s):  
Natural Environment ◽  
New Technologies ◽  
Negative Impact ◽  
New Technology ◽  
Methyl Esters ◽  
Production Costs ◽  
Raw Material ◽  
Energy Materials ◽  
The Impact ◽  
Selection Of

The aim of the work was to present the issue of eco-efficiency, based on the PN-EN ISO 14045:2012 standard in relation to the production of fatty acid methyl esters (FAME). The ecoefficiency analysis takes into account economic and environmental aspects in the improvement of products and processes / technologies. Eco-efficiency considers the product and technology throughout the life cycle, from the construction phase, through use to decommissioning. The impact on the natural environment is assessed on the basis of: consumption of energy, materials, dust and gas emissions, waste and sewage. Total costs include: production costs, raw material costs, costs during the use phase including maintenance, repair and operating costs, product disposal or recycling. The eco-efficiency analysis is helpful in making decisions regarding the selection of a new product or designing a new technology, and enables the selection of the variant that is the most economical and has the least possible impact on the natural environment. These issues are particularly important in the case of biofuels. The rapid growth of their production and the European Union’s policy, which aims to increase the share of energy from renewable sources, cause concerns of many experts regarding the threats related to the production of biofuels, both for the environment and food security. In particular, efforts are made to minimize the amount of waste and residues by implementing the idea of a circular economy. This approach promotes the development of new technologies that are more environmentally friendly. Due to the regulations set out in the RED and RED II Directives, there is a chance that the biofuels will have a less negative impact on the environment. This results from the obligation to certify compliance with the sustainability criteria, which is carried out by voluntary systems recognized by the European Commission, such as the KZR INiG System.

scholarly journals ANALISIS KETERLAMBATAN PROYEK SERTA DAMPAKNYA TERHADAP BIAYA DAN WAKTU PELAKSANAAN PROYEK

2019 ◽  
Vol 5 (1) ◽  
pp. 13-19
Author(s):  
Fitri Nur Kharina ◽  
Kusno Adi Sambowo
Keyword(s):  
Construction Projects ◽  
Construction Project ◽  
Project Performance ◽  
Project Work ◽  
Earned Value ◽  
Time Period ◽  
Review Period ◽  
The Difference ◽  
The Cost ◽  
The Impact

Construction projects in all regions continues to be developed for the creation of facilities that can be utilized by the community. One of them is the construction of apartments which are now being intensively carried out to meet residential needs for the community. Making a construction project plan always refers to estimates that exist at the time development plan is made, therefore problems can arise if there is a discrepancy between the plans that have been made and the actual reality. So the impact that often occurs is the delay in the time of project implementation which can also be accompanied by an increase in the cost of implementing the project. In the construction project of Cinere Terrace Suites Apartemen & Citywalk, Jakarta there was a delay resulting in a late payment of monthly bill progress by the owner. Based on the above reasons, this research was conducted to find out how the project performance was seen from the cost and time period of the review period. how is the estimated cost and time to complete the overall project work. The method used in the analysis of this study is the Earned Value Method. Based on the results of the analysis carried out for 29 weeks the project performance on schedule has been delayed and cost shows a positive value. For the estimated completion time of the project there is an increase in time whose duration increases from the planned 98 weeks or 685 days to 109,624 weeks or 768 days. While the estimated cost of completing the project from the results of the analysis obtained a value of Rp. 270,147,448,569.16 smaller than the planned cost of Rp. 315,272,727,272.73. With the difference VAC of Rp. 45,125,278,703.57 this shows that there are benefits obtained by the contractor.

scholarly journals Utilization of Fish Waste Processing as Compost Raw Material in Tambak Lorok Market

2019 ◽  
Vol 125 ◽  
pp. 07004
Author(s):  
Ilga Mega Kusuma ◽  
Syafrudin ◽  
Bambang Yulianto
Keyword(s):  
Environmental Pollution ◽  
Organic Nitrogen ◽  
Raw Material ◽  
Literature Study ◽  
Fish Waste ◽  
Composting Process ◽  
Phosphorus And Potassium ◽  
The Impact ◽  
Nitrogen Phosphorus

Fish waste needs to be a concern because the accumulation of fish waste will have environmental pollution. Therefore, research needs to be done to reduce the impact of environmental pollution. This study aims to treat fish waste which will be used as raw material for compost which is one of the efforts to reduce the accumulation caused by fish waste. The method used is survey, observation, and literature study. The composting process uses fish waste as a starter in the composting process. Before starting the composting is to separate fish waste from other wastes to facilitate the composting process. During composting the temperature conditions are maintained by reversing compost and color and odor changes are observed. The results showed that the levels of C-Organic; 51.7%, Nitrogen; 8.3%, Phosphor; 4.8%, and Potassium; 1.6%. From the results of C-Organic, Nitrogen, Phosphorus, and Potassium tests, the levels were quite high compared to the quality of SNI compost, so compost from fish waste where the Tambak Lorok Market can be used as fertilizer.

Study on the Mechanical Property of 20Cr13 Stainless Steel Barrel Processed by Cold Radial Forging

2016 ◽  
Vol 723 ◽  
pp. 119-124
Author(s):  
Yu Hui Qi ◽  
Xiao Yun Zhang ◽  
Li Xia Fan ◽  
Cheng Xu
Keyword(s):  
Mechanical Properties ◽  
Mechanical Property ◽  
Stainless Steel ◽  
New Technology ◽  
Radial Forging ◽  
Hardness Tester ◽  
The Difference ◽  
Bulging Test ◽  
Increased Strength ◽  
Anisotropic Mechanical Property

The barrel is a key part of automatic weapon. And the cold radial forging progress is a new technology for manufacturing the barrels. It will introduce some changes of the material, such as increased strength, decreased plasticity and introduction of anisotropic mechanical property. It can affect the service performance, so it is necessary to study the difference of tangential and axial mechanical properties of barrel blank and forged barrel. This paper focuses on the research of 20Cr13 stainless steel barrel. The mechanical properties of barrel blank and forged barrel are measured by the tensile, compression and bulging test. And the hardness is measured by Vickers hardness tester. The structural change of 20Cr13 stainless steel also has been observed by metalloscope in the metallographic experiment. It reveals the influence of the cold radial forging progress on the mechanical properties of 20Cr13 stainless steel barrel. And it also provides the reference data of the cold radial forging progress of 20Cr13 stainless steel.

scholarly journals Mechanical Properties for Elephant Dung and its Utilization as a Raw Material Composites Sheet: A Study

2021 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
Rohit Kumar ◽  
Ramratan . ◽  
Anupam Kumar ◽  
Rajinder Singh Smagh
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Impact Strength ◽  
Polymer Composite ◽  
Natural Fiber ◽  
Testing Machine ◽  
Raw Material ◽  
Weight Percentage ◽  
The Impact ◽  
Elephant Dung

Elephant dung is an excellent source of cellulosic fiber that is a basic requirement for paper making. But they contributed to very small percentage production of elephant dung. So, researchers are trying to find a new area of utilization of elephant dung fiber pulp as in reinforcement’s polymer composite. In this experiment element dung fiber pulp in the natural fiber component chemically treated with alkaline and soda AQ solution in this study, it has been aimed to use elephant dung fiber pulp in composite material and to study mechanical properties of the produced material. The produced composite samples were then characterized using tensile test, Izod impact test, thickness test. The fracture surface of the polymer composite sample was also inspected with the help of SEM. The content of elephant dung fiber pulp is varied (35%, 45%, 55%) weight percentage whereas the epoxy resin is varied (50%, 40%, 30%) percentage is kept constant 15% in hardener. The entire sample has been tested in a universal testing machine as per ASTM standard for tensile strength and impact strength. It is observed that composite with 35% fiber pulp is having the highest tensile strength of 4mm 6.445 Mpa and 8mm 11.80 Mpa. The impact strength of composite with 35% fiber pulp washes highest than 45% to 55% dung fiber pulp. This produces composite sheet will be used for the surfboards, sporting goods, building panel this not only reduces the cost but also save from environmental pollution.

scholarly journals Horse paws as raw material for fur industry

2020 ◽  
Author(s):  
Vera Radnaeva ◽  
Dmitry Shalbuev ◽  
Nikolay Sovetkin ◽  
Khurelsukh Gaanbaatar ◽  
Solongo Khosbayar ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Moisture Content ◽  
Chromium Oxide ◽  
Negative Impact ◽  
New Technology ◽  
Treatment Options ◽  
Raw Material ◽  
Processing Technologies ◽  
Regions Of Russia

Horse skin is used for processing various types of skin. However, paws of horse skin are not used as fur raw material. Usually they are burned or sent to landfills and may cause infectious diseases. It is possible to minimize negative impact on the environment by converting this waste into fur raw material. In cold regions of Russia high fur boots made of cattle and deer paws are very popular. The aim of the research is to study the possibility of using paws of horse skin as raw material for fur industry. Processing of horse paws based on well-known leather and fur processing technologies lead to semi-finished product characterized by increased stiffness and uneven properties on different skin parts. Such semi-finished product was not suitable for high fur boots manufacture. The aim of the research is to work out a new technology and study chemical and physico-mechanical properties. In the work various treatment options for horse paws and their properties are investigated: moisture content, amount of minerals and chromium oxide, pH of the aqueous extract, tensile strength, elongation at a voltage of 10 MPa, and stiffness are determined. The possibility of transferring horse paws from municipal solid waste into fur raw material is shown.

Interpreting research results for the physical and mechanical properties of wood: An approach not dependent on a juvenile/mature wood boundary

BioResources ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. 6921-6932
Author(s):  
Tomislav Sinković ◽  
Branimir Jambreković ◽  
Tomislav Sedlar
Keyword(s):  
Mechanical Properties ◽  
Radial Direction ◽  
Statistical Tests ◽  
Physical And Mechanical Properties ◽  
Wood Properties ◽  
Mature Wood ◽  
Raw Material ◽  
Technological Properties ◽  
Wood Processing ◽  
The Difference

The interpretation and presentation of research on the physical and mechanical properties of wood in the radial direction is important for the estimation of technological properties in primary wood processing. It is common practice to define the boundary between the juvenile and mature wood zone of tree growth because of the differences in wood properties in these two zones. The juvenile and mature wood zones can be determined statistically based on the significance of the difference in the properties in a particular zone. This paper presents the insufficiency in the statistical determination of the boundary between juvenile and adult wood. Such limitations detract from the potential value and technological exploitation of wood as raw material. Statistical tests yielded zones that were too wide for the transition of juvenile wood to mature wood. Representations of the distribution of properties in the radial direction also complement the knowledge for assessing the technological properties based on the researched use of the presentation of polynomials of the second degree and the display of the Tukey HSD test in the form of comparison tables. The graphical representations by groups of the tested annual rings of fir wood also help to assess the technological properties.

scholarly journals Dancing the digital age: a survey of the new technologies in the choreographic process

2020 ◽  
Vol 4 (2020.01) ◽  
pp. 37-52
Author(s):  
Gonzalo Preciado-Azanza ◽  
Dr. Adesola Akinleye
Keyword(s):  
Lived Experience ◽  
Human Body ◽  
New Technologies ◽  
New Technology ◽  
Digital Age ◽  
Creative Processes ◽  
Performance Space ◽  
Time Period ◽  
Moving Body ◽  
The Impact

This article considers fifty-eight selected dance works created during the time period of 2000-2018. In doing so the work of renown artists Wayne McGregor, Garry Stewart, Dawn Stopiello and Bill T. Jones are used as case studies to highlight how the eminence of these choreographers has engaged dance as a meeting point and merging point for humanity and ‘New technology’. The article reviews the impact of new technologies as an essential tool in the creative processes of dance and exploration of the moving-body. Innovative technologies in the 21st Century have offered choreographers new capacities for the creation of movement. These explorations into the performance space advance insights into broader questions of the human body at the intersection of arts and science. The choreographers’ exploration of the dancing form cultivates questions about how the human body extends, begins, ends and is present. As the digital age proposes new ways to (re)imagine the communication and impact of the human body we suggest these artistic collaborations also offer insights into commonalities and places of exchange across notions of art vs. science. These choreographers inter-disciplinary artistic endeavors, into how the moving body transacts and is harnessed as a mode of expression reveal deeper possibilities of the ontology of the lived-experience.

scholarly journals Highly Molybdenum-Alloyed Materials Hastelloy BC-1 (2.4708) and B3 (2.4600): Diffusion Bonding Experiments and Evaluation of Both Mechanical Behavior and Corrosion Resistance in Hot 70 % Sulfuric Acid

2020 ◽  
Author(s):  
Thomas Gietzelt ◽  
Mario Walter ◽  
Volker Toth ◽  
Florian Messerschmidt ◽  
Ralf Dahm
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Sulphuric Acid ◽  
Diffusion Bonding ◽  
Sheet Material ◽  
Tensile Tests ◽  
Raw Material ◽  
Significant Advance ◽  
Corrosion Properties ◽  
The Impact

Sulphuric acid is a widely used raw material in the chemical industry. Its corrosive effect on materials varies considerably, depending on impurities, temperature and water content. Accordingly, good corrosion resistance under all conditions is very difficult to achieve. This is especially an issue for micro process apparatus with very thin walls. Furthermore, such devices are often joint by diffusion bonding what may alter materials properties due to high temperatures and long dwell times. In fact, for each new material, the diffusion bonding parameters must be optimized and the impact on mechanical as well as corrosion properties must be investigated. In this paper, two high molybdenum alloys, namely Hastelloy B3 and BC-1, were evaluated. Diffusion bonding tests were performed using ten layers of sheet material in between round stock. Corrosion tests were performed in 70 % sulphuric acid at 100°C for 1000 h. Tensile tests on both alloys were carried out for different material conditions, to determine the change in mechanical strength and elongation at fracture values. In general, independent of the condition of the materials, the fracture behavior of both alloys was found to be ductile and the specimens show the typical dimple structure, in the case of diffusion bonded samples, interrupted by weak spots or rather non-bonded areas. These areas are obviously causing the onset of material failure and thus, a degradation of mechanical properties. Tensile samples, that were aged in 70% sulphuric acid at 100°C for 1000 hours showed local corrosion attacks at the grain boundaries at the circumferential surfaces and especially at the joining planes – for Hastelloy B3 much more pronounced than for Hastelloy BC-1. Accordingly, a further decrease of both, the stress- and elongation at fracture values is observed. However, the typical material parameters like 0.2 % yield strength used for dimensioning components are found to be sufficient high, even when operating the materials under such harsh conditions. When concluding the results, at least Hastelloy BC-1 reveals both sufficient good mechanical properties and an excellent corrosion resistance, regardless of the heat treatment, and could be considered for manufacturing micro-process engineering apparatuses operated in a sulphuric acid environment. This is a significant advance compared to the results obtained within a AiF project, previously carried out on four different materials to investigate the corrosion resistance in sulphuric acid.

A structural analysis of the enablers of u-commerce proliferation in a developing economy

2016 ◽  
Vol 65 (7) ◽  
pp. 925-946 ◽  
Author(s):  
Mohd. Nishat Faisal ◽  
Habibullah Khan
Keyword(s):  
Structural Model ◽  
New Technology ◽  
Business Environment ◽  
Developing Economy ◽  
Content Type ◽  
Key Variables ◽  
The Difference ◽  
The Impact ◽  
Interpretive Structural Model ◽  
Model Technique

Purpose U-commerce is an emerging paradigm transcending traditional e-commerce boundaries. The purpose of this paper is to highlight those issues that deserve attention in developing successful u-commerce models. Design/methodology/approach The interpretive structural model technique is adopted to construct a hierarchical structure, and the impact matrix cross-reference multiplication applied to a classification (MIC-MAC) approach is employed to analyze the effect and dependence among these factors. Findings The research shows that there exists a group of enablers having a high driving power and low dependence requiring maximum attention and of strategic importance, while another group consists of those variables that have high dependence and are the resultant actions. Practical implications Organizations that plans to develop a u-commerce model would be benefited from this study. They can understand the difference between the independent and dependent variables and their mutual relationships. This would help them to prioritize their budget and implement suitable strategies to cater to key variables so as to exploit the benefits of u-commerce. Social implications Most of the GCC countries have very similar business environment. This research can easily be adapted to other GCC nations thereby saving the duplication of time, efforts and money. Originality/value This research was conducted in a developing economy in a GCC country which is very fast adopter of new technology. The findings of this study would serve as a guide to the businesses who are migrating to a u-commerce model in future.

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