scholarly journals The battery of silos for rapeseed - the impact of the building quality and exploitation conditions on the technical state of the object

2018 ◽  
Vol 174 ◽  
pp. 01036
Author(s):  
Krystyna Wróbel ◽  
Wiesław Kubiszyn
Keyword(s):  
Concrete Structure ◽  
Technical Condition ◽  
Significant Loss ◽  
Concrete Carbonation ◽  
Structural Reinforcement ◽  
The Poor ◽  
Functional Efficiency ◽  
The Subject ◽  
The Impact

The subject of the paper is a battery of silos for rapeseed located in Oil Factory in Bodaczów. It consists of 24 cylindrical silos with capacity of 500 tons and 14 star-shaped chambers between them with a capacity of 100 tons each. The silos were supported on the supporting structure in the form of permeating ring beams and columns. The height of a single silo is 25 m, and the diameter about 6.0 m. Detailed macroscopic tests were performed on the battery of silos. Destructive and sclerometric in-situ quality tests and pull-off test were performed on the concrete, the degree of concrete carbonation was estimated. The position of the reinforcement in the concrete structure and the corrosion of the reinforcement steel were determined. Static and strength calculations were carried out. Based on the results the technical condition of the object was estimated as poor, locally due to the significant loss of concrete and structural reinforcement it was estimated as imminent failure. The article presents the results of these tests, describes the reasons for the poor technical condition of the structure and presents solutions to restore its functional efficiency. A comprehensive repair of the battery of silos is currently underway applying the proposed solutions.

scholarly journals Health hazards as a consequence of the poor technical condition of vehicles in Ghana

2021 ◽  
Vol 9 (5) ◽  
pp. 47-50
Author(s):  
Katarzyna Wojtysiak ◽  
Ewa Zieliński ◽  
Tomasz Wojsz
Keyword(s):  
Developing Countries ◽  
Public Transport ◽  
Road Traffic ◽  
Poor Quality ◽  
Technical Condition ◽  
Lessons Learned ◽  
Health Hazards ◽  
Technical Problems ◽  
The Poor ◽  
The Impact

Purpose: This is a review to assess the health hazards resulted from the poor technical condition of vehicles in Ghana. In developing countries, the number of vehicles involved in road traffic is systematically increasing. The health consequences of road accidents are a crucial public concern. Methodology: The PubMed and Google scholar search were used to find literature for this analysis. The following keywords were taken into consideration in this paper: health hazards, technical conditions, vehicles, accidents, developing countries, Ghana. The analysis has been done by the systematic review analysis method. The articles were selected in terms of the health hazards resulting from the poor technical condition of vehicles in Ghana and its effects on road safety. Twenty papers were being reviewed. Main findings: The quality of vehicles on Ghanaian roads is low. Most of the cars are old. For economic reasons, users often use substandard products to repair cars. Poor-quality, non-original, mismatched parts can lead to an accident. The technical condition of vehicles affects the safety of road users. The security of citizens should be an essential goal of the state. Inspections of the technical condition of cars, especially in public transport, should be strengthened and the frequency increased. Implications: Based on the analysis of the publications, it was assessed that there is no current literature on technical problems of vehicles in Ghana, with particular emphasis on public transport. This is an essential topic for the security of citizens and should be investigated, analyzed, and lessons learned without delay. Novelty in this study: There is a lack of systematic reviews of the impact of health hazards resulted from the poor condition of vehicles in Ghana. The paper is an attempt to assess the impact of the problem.

scholarly journals The influence of technological errors on the corrosion degradation of the copper alloy from the cunifer group – CuNi10Fe1,6Mn

Mechanik ◽  
2019 ◽  
Vol 92 (5-6) ◽  
pp. 391-394
Author(s):  
Jakub Kowalski ◽  
Milena Supernak-Marczewska ◽  
Krzysztof Emilianowicz ◽  
Lech Nadolny
Keyword(s):  
Sea Water ◽  
Cooling System ◽  
Welding Process ◽  
Technical Condition ◽  
Corrosion Properties ◽  
Engine Cooling ◽  
The Subject ◽  
Technological Defects ◽  
Main Engine ◽  
The Impact

Copper and nickel alloys called cunifers (Cu, Ni, Fe and R – rest of alloy elements) have found wide application in the production of ship pipeline components in contact with sea water, such as, for example, the main engine cooling system. These alloys are characterized by a very high corrosion resistance, which is ensured by appropriately carried out passivation. However, with improperly carried out passivation, this material loses its anti-corrosion properties and is often corroded. In addition, a mistakenly conducted welding process is a factor conducive to degradation processes. The purpose of this work is to show the impact of errors created during the production process and pipeline testing for its technical condition. The subject of the research was a fragment of the pipeline made of CuNi10Fe1,6Mn alloy, coming from a vessel floating on sea waters. Macro- and microscopic examinations revealed a number of technological defects that affected the degradation of this element.

Determination of the Strength Parameters of Pinewood Based on the Non-Destructive Sclerometric Test with a Wood Hammer

2020 ◽  
Vol 30 (1) ◽  
pp. 43-52
Author(s):  
Bartosz Szostak ◽  
Maciej Trochonowicz ◽  
Mateusz Kowalczyk
Keyword(s):  
Compressive Strength ◽  
Nondestructive Testing ◽  
Technical Condition ◽  
Strength Parameters ◽  
The Impact ◽  
Non Destructive ◽  
Structure And Design

AbstractTo assess the technical condition of a structure and design it using existing elements, it is necessary to know its parameters. For existing facilities, it is often not possible to get a sample of material and examine it directly in the laboratory. For this reason, in situ nondestructive testing is very important.The main goal of the paper is to present the issues related to determining the strength parameters of a particular wood based on the non-destructive sclerometric test performed with a wood sclerometric hammer. The study also presents the results of the impact of pinewood density on its compressive strength.

scholarly journals Bill of quantities and quantity survey of construction works of renovated buildings - case study

2019 ◽  
Vol 9 (1) ◽  
pp. 350-358
Author(s):  
Marzena Lendo-Siwicka ◽  
Katarzyna Pawluk ◽  
Arkadiusz Kowalczyk ◽  
Roman Trach
Keyword(s):  
Detailed Analysis ◽  
Good Practice ◽  
Technical Condition ◽  
Existing Building ◽  
The Poor ◽  
Bill Of Quantities ◽  
The Impact ◽  
Construction Works ◽  
Building Elements

AbstractThe article presents detailed analysis of the case of the renovation of one of historic tenement houses in Warsaw. Other, similar cases analyzed in less detail- were called verification cases. The aim of the article was, first of all, to present the scale of discrepancies between planned and performed amount of works and possibly precise indication of the reasons for these underestimations. The scope of the research included the inventory of the technical condition of selected building elements, the execution of bill of quantities, quantity survey and cost estimates of selected works. The conducted research shows that quantity survey of works subjected to analysis such as: repair of walls, chimneys and brick walls reached the value at least twice as large. The planned cost of works calculated on the basis of the event was exceeded approximately twice. This was mainly due to the fact that the impact of repair works on deterioration of the technical condition of existing building elements was not foreseen. The poor technical condition of elements that were covered was not foreseen either. On the basis of the case studied, universal observations about renovated facilities can be provided. First of all, it should be stated that a person who makes bill of quantities on such facilities should have executive experience on similar projects. Thus, a good practice would be a cooperation with a person experienced in the implementation of similar investments.

Direct Observations of the Epitaxial Growth of Sputtered Ag on Si

1973 ◽  
Vol 31 ◽  
pp. 122-123
Author(s):  
J. S. Maa ◽  
Thos. E. Hutchinson
Keyword(s):  
Epitaxial Growth ◽  
Film Growth ◽  
Ion Beam ◽  
Ion Beam Sputtering ◽  
Microscopy Technique ◽  
Direct Observations ◽  
In Situ Electron Microscopy ◽  
Beam Sputtering ◽  
The Subject

The growth of Ag films deposited on various substrate materials such as MoS2, mica, graphite, and MgO has been investigated extensively using the in situ electron microscopy technique. The three stages of film growth, namely, the nucleation, growth of islands followed by liquid-like coalescence have been observed in both the vacuum vapor deposited and ion beam sputtered thin films. The mechanisms of nucleation and growth of silver films formed by ion beam sputtering on the (111) plane of silicon comprise the subject of this paper. A novel mode of epitaxial growth is observed to that seen previously.The experimental arrangement for the present study is the same as previous experiments, and the preparation procedure for obtaining thin silicon substrate is presented in a separate paper.

Managing Service Quality, Food Quality, Price Fairness and Customer Retention: A Holistic Perspective

2020 ◽  
Vol 2 (1) ◽  
pp. 1-5
Author(s):  
Ammar Ahmed ◽  
Rafat Naseer ◽  
Muhammad Asadullah ◽  
Hadia Khan
Keyword(s):  
Service Quality ◽  
Food Quality ◽  
Service Sector ◽  
Customer Retention ◽  
Price Fairness ◽  
Policy Makers ◽  
Restaurant Management ◽  
The Subject ◽  
Research Propositions ◽  
The Impact

In this competitive environment, organizations strive to satisfy their customer by providing best quality service at affordable and fair prices with a view to enhance their revenues. To achieve the objective of revenue maximization, organizations strive to identify the factors that help them in retaining their customers. Drawing from the signalling theory of marketing, the current study proposes a novel conceptual model representing the impact of service quality with food quality and price fairness on customer retention in restaurant sector of Pakistan. The paper underlines an important arena of knowledge for academicians as well as organizational scientists on the subject. On the basis of literature available on the variables understudy, the present study forwards eight research propositions worthy of urgent scholarly attention. The conceptualized model of the present article can also be viewed significant in unleashing further avenues for the restaurant management entities, policy makers and future researchers in the domain of managing in the service sector businesses.

PENERAPAN STRATEGI PEMBELAJARAN GO TO YUOR POST UNTUK MENINGKATKAN HASIL BELAJAR IPS SISWA KELAS VI SDN 024 TARAI BANGUN KECAMATAN TAMBANG KABUPATEN KAMPAR

2017 ◽  
Vol 1 (1) ◽  
pp. 85
Author(s):  
Delfi Yendri
Keyword(s):  
Social Sciences ◽  
Data Collection ◽  
Student Learning ◽  
Learning Outcomes ◽  
Learning Strategies ◽  
Student Learning Outcomes ◽  
Student Activity ◽  
The Poor ◽  
The Subject ◽  
Data Collection Activity

This research is motivated by the poor results of Study Social Sciences (IPS) Student Class VI SDN 024 Tarai Bangun Kecamatan Tambang. This study aims to determine the resulting increase studying social sciences (IPS) student class VI SDN 024 Tarai Bangun Kecamatan Tambang through the application of learning strategies go to yuor post, which carried out for 1 month. The subjects were VI SDN 024 Tarai Bangun Kecamatan Tambang by the number of students as many as 38 people. Form of research is classroom action research. The research instrument consists of instruments and instrument performance data collection activity observation sheet form teacher and student activity. Based on the research, the conclusion to this study is based on the analysis and discussion in chapter IV can be concluded that the application of learning strategies go to yuor post can improve learning outcomes in the subject of social sciences grade VI SDN 024 Tarai Bangun Kecamatan Tambang. Evidenced by the increase in learning outcomes before action to the first cycle, to cycle II. Before the act of student learning outcomes classified as unresolved with an average of 59%, an increase in the first cycle by an average of 69%. While the results of student learning in the second cycle must be increased by an average of 75% with the category completed.

Solow economy model

2019 ◽  
pp. 150-157
Author(s):  
Oleksandr Synenko ◽  
Kateryna Yarema ◽  
Yuliia Bezsmertna
Keyword(s):  
Economic Growth ◽  
Regression Analysis ◽  
Solow Model ◽  
Economy Model ◽  
Accelerated Depreciation ◽  
Basic Parameters ◽  
The Subject ◽  
Investment Process ◽  
The Impact ◽  
Model Algorithm

The subject of the research is the approach to the possibility of using the Solow model to perform the regression analysis on the example of the Ukrainian economy model. The purpose of writing this article is to investigate the notion of regres- sion analysis, Solow’s economy model, algorithm for performing regression analy- sis on the example of Ukraine’s economy model. This model can be adapted for the economy of enterprises. Methodology. The research methodology is system-struc- tural and comparative analyzes (to study the structure of GDP); monograph (when studying methods of regression analysis on the example of the Ukrainian economy); economic analysis (when assessing the impact of factors on Ukraine’s GDP). The scientific novelty consists the features of the use of the Solow model on the ex- ample of Ukrainian economy are determined. An algorithm for calculating the basic parameters of a model using the Excel application package is disclosed. The main recommendations on the development of the national economy and economic growth through the use of macroeconomic instruments are given. Conclusions. The use of the Solow model enables forecasting and analysis. The results obtained re- vealed the problem of low resource return of capital as a resource, along with the means of macroeconomic regulation of the investment process, using which can improve the situation. A special place in these funds belongs to the accelerated depreciation and interest rate policies.

Assessment of small businesses activities in Ukraine

2019 ◽  
pp. 40-47
Author(s):  
Igor Ponomarenko ◽  
Kateryna Volovnenko
Keyword(s):  
Comparative Analysis ◽  
Statistical Analysis ◽  
Small Business ◽  
Small Businesses ◽  
Government Agencies ◽  
Small Enterprises ◽  
The Subject ◽  
Business Entities ◽  
The Impact ◽  
Micro Enterprises

The subject of the research is a set of approaches to the statistical analysis ofthe activities of small business entities in Ukraine, including micro-enterprises. The purpose of writing this article is to study of the features of functioningof small business entities in Ukraine. Methodology. The research methodology isto use a system-structural and comparative analysis (to study the change in thenumber of small enterprises by major components); monographic (when studyingmethods of statistical analysis of small businesses); economic analysis (when assessing the impact of small business entities on socio-economic phenomena andprocesses in Ukraine). The scientific novelty consists to determine the features ofthe functioning of small businesses in Ukraine in modern conditions. The influenceof the activities of the main socio-economic and political indicators on the activities of small enterprises in recent periods of time has been identified. It has beenestablished that there is flexibility in the development of strategies by small businesses in conditions of significant competition, which makes it possible to quicklyrespond to changing situations in specific markets. Conclusions. The use of acomprehensive statistical analysis of small businesses functioning in Ukraine willallow government agencies to develop a set of measures to optimize the activitiesof these enterprises, which ultimately will positively affect the strengthening oftheir competitiveness and will contribute to the growth of the national economicsystem.

The Impact of Quantitative Easing on Emerging Markets – Literature Review

e-Finanse ◽  
2018 ◽  
Vol 14 (4) ◽  
pp. 67-76
Author(s):  
Piotr Bartkiewicz
Keyword(s):  
Emerging Markets ◽  
Large Scale ◽  
Empirical Literature ◽  
Quantitative Easing ◽  
Methodological Choices ◽  
The Subject ◽  
Methodological Approaches ◽  
The Impact ◽  
Sufficient Precision

AbstractThe article presents the results of the review of the empirical literature regarding the impact of quantitative easing (QE) on emerging markets (EMs). The subject is of interest to policymakers and researchers due to the increasingly larger role of EMs in the world economy and the large-scale capital flows occurring after 2009. The review is conducted in a systematic manner and takes into consideration different methodological choices, samples and measurement issues. The paper puts the summarized results in the context of transmission channels identified in the literature. There are few distinct methodological approaches present in the literature. While there is a consensus regarding the direction of the impact of QE on EMs, its size and durability have not yet been assessed with sufficient precision. In addition, there are clear gaps in the empirical findings, not least related to relative underrepresentation of the CEE region (in particular, Poland).

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