scholarly journals Durability of Biomass Briquettes

2006 ◽  
Vol 1 ◽  
pp. 139
Author(s):  
A. Kaķītis ◽  
I. Nulle
Keyword(s):  
Particle Size ◽  
Shear Stress ◽  
Combustion Process ◽  
International Standards ◽  
National Standards ◽  
Ultimate Shear Strength ◽  
Material Particle ◽  
Ultimate Shear Stress ◽  
Cereal Straw

The main resources for biomass agro-ecotechnologies are cereal straw residues, energy crops and emergent vegetation from wetlands. The herbaceous biomass is a material of low density (20 – 60kg/m3) therefore new mobile equipment and technologies for biomass comminution and densification have to be worked out. To guarantee the quality of biomass briquettes in the handling and usage process, sufficient durability of briquettes should be provided. National Standards of biomass briquettes should be worked out in accordance with the requirements of International Standards. Dependence of Ultimate shear stress on wheat stalk material particle size in biomass briquettes was investigated. It was stated that ultimate shear stress increases for particle size in briquettes less than 0.5mm. Peat additive improves the density and ultimate shear strength of briquettes, but peat in combustion process increases the ash content. Therefore it is not necessary to add peat more than 50% in briquetting composition. Durability of reed stalk briquettes ~1.7 times exceeds durability of wheat stalk briquettes. Maximal values of ultimate shear stress (1,5 MPa) and density (1,2 g/cm3) for pure peat (100%) briquettes was obtained.

Chemical and microbiological quality of desalinated waters in Birjand city, Iran

2018 ◽  
Vol 9 (1) ◽  
pp. 64-70 ◽  
Author(s):  
Ali Naghizadeh ◽  
Mohammad Kamranifar ◽  
Fatemehsadat Masoudi ◽  
Mohammad Reza Nabavian
Keyword(s):  
Microbiological Quality ◽  
Quality Parameters ◽  
The Body ◽  
International Standards ◽  
National Standards ◽  
Fecal Coliforms ◽  
World Health ◽  
Residual Chlorine ◽  
Treated Water

Abstract The importance of water in everyday life is clear for humans and living creatures. In addition to supplying the water required for the body, it also contains necessary minerals. An increase or decrease in these minerals is responsible for various diseases and problems. Due to the growing consumption of treated water in Birjand, Iran and the need for the continuous monitoring of the quality of treated water, this descriptive research aimed to determine the chemical and microbiological quality of treated water of desalination stations in Birjand from September 23rd, 2015 to March 19th, 2016 (autumn and winter). Samples were directly taken from the desalination stations of Birjand. Physical and chemical tests were performed according to the Standard Methods. The results were compared with national standards as well as World Health Organization (WHO) guidelines. The results showed that almost all measured chemical and bacterial characteristics were less than the national and international standards. Also, the samples were standard in terms of coliforms and fecal coliforms. In some stations the concentrations of free residual chlorine and also magnesium were higher than standards. Therefore, periodic investigation of quality parameters is recommended in all desalination stations to reflect the results to authorities.

scholarly journals Comparative Analysis of Quality and Environmental Management Strategic Implementation in Cement Industry

2019 ◽  
Vol 4 (2) ◽  
pp. 58-70
Author(s):  
Filson Maratur Sidjabat ◽  
Risalatul Habibah ◽  
Martogi Pasaribu
Keyword(s):  
Environmental Management ◽  
Cement Industry ◽  
International Standards ◽  
National Standards ◽  
Iso 14001 ◽  
Iso 9001 ◽  
Strategic Implementation ◽  
Operational Activities ◽  
Negative Impacts

The cement industry's activities have an impact on health and the environment, therefore a solution is needed to deal with the negative impacts of the cement industry operations. The cement industry undertaken various strategies in dealing with the negative impacts that occur to remain trusted by buyers. The strategy carried out by the cement industry is not only according to national standards but also international standards. ISO is one of the international standards in operational activities. The cement industry strives to obtain ISO 9001: 2015 certification regarding quality management which ensures the quality of cement products is in accordance with international standards and ISO 14001:2015 certification regarding environmental management which ensures that the industrial strategy implemented by the industry is in accordance with international standards. Three cement industries in Indonesia that have been certified ISO 9001: 2015 and ISO 14001: 2015 are PT Indocement Tunggal Prakarsa Tbk., PT Holcim Indonesia Tbk., And PT Semen Baturaja Tbk. The author will analyze the comparison of strategies implemented by the three cement industries in implementing ISO 9001: 2015 and ISO 14001: 2015. The method used in this research is descriptive exploratory. The collection of data and information is carried out through several references from related companies.

scholarly journals Areas of Concern of the Tourism Activities Implementation

2020 ◽  
pp. 95-100
Author(s):  
Valentyna Boiko ◽  
Alina Myroshnychenko ◽  
Anna Kolodiazhna
Keyword(s):  
National Level ◽  
State Regulation ◽  
Tourism Industry ◽  
International Standards ◽  
National Standards ◽  
Industry Development ◽  
Tourism Management ◽  
Tourism Product ◽  
Local Levels

Current condition, problems and prospects for the domestic tourism industry development are studied. The main aspects hindering the tourism industry development in the country are considered and require further solutions. The current normative legal acts regulating issues in the field of tourism are considered and the attention is focused on the lack of correlation between the normative regulation of the branch and the share of revenues from the provision of tourist services in the country's GDP. It is determined that further reorganization and development of tourism in our country is not possible without the active support and direct intervention of the state. The authors proposed the measures, the implementation of which will help harmonize national standards in the field of tourism and resorts with international standards and help improve the quality of the national tourism product. It is proved that the development of the tourism industry directly depends not only on strengthening state regulation of tourism at the national level, but also at the regional level, especially since the tourism management system at the regional and local levels in decentralization in Ukraine is far from perfect. Emphasis is placed on the need to implement EU legislation in the field of tourism and resorts, which contributes to the improvement of tourism legislation and developed recommendations for the implementation of mechanisms for tourism development in the country.

scholarly journals Quality of education as a requirement of modern society

2020 ◽  
Vol 210 ◽  
pp. 22031
Author(s):  
Vera Demina ◽  
Svetlana Demina ◽  
Oksana Kozhukalova ◽  
Irina Zayakina
Keyword(s):  
Russian Federation ◽  
Modern Society ◽  
International Standards ◽  
National Standards ◽  
Educational Services ◽  
Quality Of Education ◽  
Federal State ◽  
Russian Society ◽  
The Russian Federation

The aim of the work is to study the compliance of the quality of education in Russia with the requirements determined by the needs of the Russian society. The article reveals the genesis of such categories as" quality of education "and"quality of products and services". The features of educational services as a public good in the forms of market relations are revealed. The structure and role of various consumers of educational services are defined separately, and a classification of the needs and requirements of consumers to the quality of education is proposed. In the course of the research, such methods as analysis and synthesis, induction and deduction, and statistical methods for studying the economic situation were used. The empirical base of the research is scientific works of Russian and foreign authors on the problems of education quality, National standards of the Russian Federation and International standards in the field of quality, the Federal law "on education in the Russian Federation", Federal state educational standards of the Russian Federation, official data of the Federal Treasury and the Federal state statistics service of the Russian Federation.

Influence of raw material particle size on quality of pellets

2008 ◽  
Vol 35 (5) ◽  
pp. 327-337 ◽  
Author(s):  
T. Umadevi ◽  
M. G. Sampath Kumar ◽  
Suresh Kumar ◽  
C. S. Gururaj Prasad ◽  
M. Ranjan
Keyword(s):  
Particle Size ◽  
Raw Material ◽  
Material Particle

APPLICATION OF THE INTERNATIONAL STANDARD ISO 14000 ON THE OJSC «STAVROPOL BREWERY»

2020 ◽  
Author(s):  
Н.М. ПРИВАЛОВА ◽  
М.В. ДВАДНЕНКО ◽  
Л.Ю. КИСЕЛЕВА
Keyword(s):  
Quality Management ◽  
Management System ◽  
Quality Management System ◽  
International Standards ◽  
National Standards ◽  
Iso 9001 ◽  
High Quality ◽  
Iso 14000 ◽  
Quality Of Products

Проведен анализ построения системы управления качеством на ОАО Ставропольский пивоваренный завод . Отмечено, что гарантией стабильно высокого качества продукции является внедрение на предприятии СМК на базе международных стандартов ISO серии 14000 согласно национальным стандартам ГОСТ Р ИСО 9001 и ГОСТ Р ИСО 14000. The analysis of the construction of the quality management system at OJSC Stavropol brewery is carried out. It is noted that the guarantee of consistently high quality of products of this enterprise is the introduction of QMS at the enterprise on the basis of international standards ISO 14000 series in accordance with national standards GOST R ISO 9001 and GOST R ISO 14000.

Study on Rail Weighbridge Shear Stress Sensor Optimal Installation Size Based on ANSYS

2011 ◽  
Vol 338 ◽  
pp. 295-299
Author(s):  
Jin Li Xu ◽  
Bing Xia ◽  
Zhi Lei Chen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Shear Stress ◽  
Force Measurement ◽  
International Standards ◽  
National Standards ◽  
Measurement Equipment ◽  
Test Results ◽  
Element Analysis ◽  
Shear Stress Sensor

For gaining the best position ranges of shear sensor on webs, this paper make a finite-element analysis on force measurement rail's webs of shear rail weigher. And we also use a standard force measurement equipment to test it, the test results showed that the repetitive accuracy of rail weighing system reached national standards 0.2 level, international standards, 0.5 level .

The Changing Patterns of North Korea’s International Film Co-Productions Since the 1980s: A Global Value Chain Approach

2020 ◽  
pp. 83-108
Author(s):  
Moon Hwy-Chang ◽  
Wenyang Yin
Keyword(s):  
Value Chain ◽  
North Korea ◽  
Film Industry ◽  
International Standards ◽  
The Political ◽  
Global Value Chain ◽  
Comprehensive Understanding ◽  
Changing Patterns ◽  
Film Productions

Although North Korea is one of the most closed countries in the world, it has long been pursuing international cooperation with other countries in order to upgrade the quality of its film industry to international standards. Preceding studies on this topic have mainly focused on the political influences behind filmmaking in general and very few studies have exclusively dealt with North Korea’s international co-productions. In this respect, in order to develop a comprehensive understanding of the internalization strategy of North Korea’s film productions, this paper uses the global value chain as a framework for analysis. This approach helps understand the internationalization pattern of each value chain activity of film co-productions in terms of the film location and the methods for collaborating with foreign partners. By dividing the evolution of North Korea’s international co-productions into three periods since the 1980s, this paper finds that although North Korea has shown mixed results with different aspects of the film value chain, it has generally improved its internationalization over the three periods. This paper further provides strategic directions for North Korea by learning some of the successful Chinese experiences in the film sector regarding collaboration with foreign partners—to foster a win-win situation for all involved parties.

scholarly journals Contribution of Fine Particles to Air Emission at Different Phases of Biomass Burning

Atmosphere ◽  
2019 ◽  
Vol 10 (5) ◽  
pp. 278 ◽  
Author(s):  
Niloofar Ordou ◽  
Igor E. Agranovski
Keyword(s):  
Particle Size ◽  
Particle Size Distribution ◽  
Fine Particles ◽  
Combustion Process ◽  
Coarse Particles ◽  
Biomass Smoke ◽  
Smoke Particles ◽  
Air Emission ◽  
Entire Duration ◽  
Diffusion Properties

Particle size distribution in biomass smoke was observed for different burning phases, including flaming and smouldering, during the combustion of nine common Australian vegetation representatives. Smoke particles generated during the smouldering phase of combustions were found to be coarser as compared to flaming aerosols for all hard species. In contrast, for leafy species, this trend was inversed. In addition, the combustion process was investigated over the entire duration of burning by acquiring data with one second time resolution for all nine species. Particles were separately characterised in two categories: fine particles with dominating diffusion properties measurable with diffusion-based instruments (Dp < 200 nm), and coarse particles with dominating inertia (Dp > 200 nm). It was found that fine particles contribute to more than 90 percent of the total fresh smoke particles for all investigated species.

scholarly journals Leaching Behaviour of Construction and Demolition Wastes and Recycled Aggregates: Statistical Analysis Applied to the Release of Contaminants

2021 ◽  
Vol 11 (14) ◽  
pp. 6265
Author(s):  
Alessandra Diotti ◽  
Giovanni Plizzari ◽  
Sabrina Sorlini
Keyword(s):  
Particle Size ◽  
Statistical Analysis ◽  
Raw Materials ◽  
Primary Source ◽  
Recycled Aggregates ◽  
Critical Parameters ◽  
Material Particle ◽  
Analysis Methodology ◽  
Construction And Demolition Wastes ◽  
Leaching Behaviour

Construction and demolition wastes represent a primary source of new alternative materials which, if properly recovered, can be used to replace virgin raw materials partially or totally. The distrust of end-users in the use of recycled aggregates is mainly due to the environmental performance of these materials. In particular, the release of pollutants into the surrounding environment appears to be the aspect of greatest concern. This is because these materials are characterized by a strong heterogeneity which can sometimes lead to contaminant releases above the legal limits for recovery. In this context, an analysis of the leaching behaviour of both CDWs and RAs was conducted by applying a statistical analysis methodology. Subsequently, to evaluate the influence of the particle size and the volumetric reduction of the material on the release of contaminants, several experimental leaching tests were carried out according to the UNI EN 12457-2 and UNI EN 12457-4 standards. The results obtained show that chromium, mercury, and COD are the most critical parameters for both CDWs and RAs. Moreover, the material particle size generally affects the release of contaminants (i.e., finer particles showed higher releases), while the crushing process does not always involve higher releases than the sieving process.

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