Chemistry-Didactics-Ecology-Metrology最新文献_第8页

The Effect of Point Emitter Geometric Parameters on Dustfall 点辐射源几何参数对降尘的影响

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2016-12-01 DOI: 10.1515/cdem-2016-0007

M. Wierzbińska

{"title":"The Effect of Point Emitter Geometric Parameters on Dustfall","authors":"M. Wierzbińska","doi":"10.1515/cdem-2016-0007","DOIUrl":"https://doi.org/10.1515/cdem-2016-0007","url":null,"abstract":"Abstract In this paper, the modeling results are presented of point emitter geometric parameters determining the dispersion of dust pollution in the atmospheric air and finally also dustfall. The parameters include: the height and diameter of the emitter. Using the maps generated by “Ek100w” programme of Atmoterm company from Opole, Poland, an analysis of the PM10 dustfall value distribution on the analyzed area has been made. Fraction of dust - PM10 - was emitted from emitters of various working parameters. Three situations were analyzed: emission from a one-family (detached) building, from and industrial plant and from a power plant. Different heights and diameters for the above cases were analyzed. What results from the work, is that the mentioned parameters have a significant influence on the value of dustfall on the area surface at different distances from the emitter. With the increase of the height and diameter of the emitter, the values of dustfall decrease. The distance of the maximal values occurrence also increases. Results of similar analysis and available tools allow to design emission in practice, and thus allow a maximal limitation of ambient concentration of pollution and dustfall in areas especially exposed to industrial and superficial emission.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"21 1","pages":"83 - 95"},"PeriodicalIF":0.4,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66778885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Application of REACH and LCA System’s to the Materials Formed in the Production of Mineral Wool REACH和LCA系统在矿棉生产中形成的物料中的应用

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2016-12-01 DOI: 10.1515/cdem-2016-0011

Z. Adamczyk, A. Harat, A. Grmela

引用次数: 1

Photocatalytic Coatings - Promising Way to Improve a Quality of Urban Building Surfaces 光催化涂层——提高城市建筑表面质量的一种有前途的方法

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0012

T. Sázavská, J. Šubrt, M. Jakubíčková, F. Peterka

{"title":"Photocatalytic Coatings - Promising Way to Improve a Quality of Urban Building Surfaces","authors":"T. Sázavská, J. Šubrt, M. Jakubíčková, F. Peterka","doi":"10.1515/cdem-2015-0012","DOIUrl":"https://doi.org/10.1515/cdem-2015-0012","url":null,"abstract":"Abstract With the increasing air pollutants particularly in the cities the deteriorating conditions of the buildings accelerate. One of the non-invasive and cheap promising ways how to prevent the buildings against the aged processes caused by biological pollutants or smog exhalation is the innovation of suitable photocatalytic coatings. This work focuses on the characterization of prepared photocatalytic nanocomposite TiO2-SiO2 system to be applied on the building objects in order to improve a quality of their surfaces. The structure and the texture characterization of prepared nanocomposite were determined by electron microscopy (SEM, TEM + EDS). The photocatalytic activity of the composite was determined considering the self-cleaning ability and the antibacterial activity. For self-cleaning characterization the methylene blue degradation was measured. These self-cleaning properties were tested on the various types of supports, which are commonly used in the building facades. To estimate antibacterial and biocidal activity the Gram-negative bacterium Escherichia coli and the gram-positive bacteria Staphylococcus aureus were used. Both methods were done according to standard ISO tests. Next to the laboratory testing the application of the composite under the real condition was implemented. There were treated parts of the concrete outside wall with the composite and after more than one year the colour changed analysis of the wall surface was characterized.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"20 1","pages":"113 - 122"},"PeriodicalIF":0.4,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/cdem-2015-0012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66778411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Use of the ImageJ Program to Assess the Damage of Plants By Snails 利用ImageJ程序评估蜗牛对植物的危害

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0007

M. Stawarczyk, K. Stawarczyk

引用次数: 6

Ponds Syrenie Stawy in Szczecin - Changes of Selected Water Quality Chemical Indices 什切青地区池塘水质化学指标的变化

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0009

G. Poleszczuk, Tymoteusz Miller, Małgorzata Tokarz

引用次数: 1

Functional Traits and Plasticity of Plants in Ecological Research and Education 生态学研究与教育中的植物功能性状与可塑性

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0006

E. Masarovičová, M. Májeková, I. Vykouková

引用次数: 4

The Content of Lead, Cadmium and Mercury in Sediments from Rainwater Reservoirs Situated Along the National Road 4 4号国道沿线雨水蓄水池沉积物中铅、镉、汞的含量

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0008

M. Niemiec

{"title":"The Content of Lead, Cadmium and Mercury in Sediments from Rainwater Reservoirs Situated Along the National Road 4","authors":"M. Niemiec","doi":"10.1515/cdem-2015-0008","DOIUrl":"https://doi.org/10.1515/cdem-2015-0008","url":null,"abstract":"Abstract The paper aimed at determining the pollution level of sediments collected from reservoirs receiving rainwater. The sediments were sampled from11 reservoirs on three dates: in May 2007, in April 2008 and in June 2008 in the following localities: Sulkow, Biskupice, Bodzanow and Suchoraba situated at a distance of ca 15 from each other. The contents of lead, cadmium, mercury and organic matter were assessed in the sediments. Lead content in the analysed sediments ranged from 9.87 to 61 mg · kg−2 with average for all samples 28.08 mg · kg−1. Mean cadmium concentration in the studied sediments was 0.637 mg · kg−1 and fluctuated from 0.20 to 1.58 mg Cd · kg−1. The quantities of mercury assessed in the sediments from rainwater reservoirs ranged from 0.337 to 0.864 mg · kg−1. Considerable differences between studied metal concentrations were assessed among the studied reservoirs, however the trends of differences were similar at each sampling. Generally, the levels of cadmium and mercury assessed in the analyzed sediments were comparable to the sediments from urbanized areas of various cities in the world, whereas lead level in the sediments of the analysed reservoirs was generally much lower than reported for similar materials in literature. Regularly decreasing contents of all elements with growing distance from the Krakow agglomeration was noted. The reservoir situated closest to Krakow, in Sulkow is located 7 km from the city boundaries and borders on Wieliczka town, whereas the reservoir in Suchoraba is located 17 km from Krakow. At this distance metal concentrations in the sediments from rainwater reservoirs were diminishing several times, which suggests considerable effect of urban pollution on metal level in these sediments.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"20 1","pages":"75 - 83"},"PeriodicalIF":0.4,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66778032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Q-Methodology Study of Students Behaviour During Project-Based Learning 项目式学习中学生行为的q -方法论研究

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0004

G. Németh, Miroslav Prokša

{"title":"Q-Methodology Study of Students Behaviour During Project-Based Learning","authors":"G. Németh, Miroslav Prokša","doi":"10.1515/cdem-2015-0004","DOIUrl":"https://doi.org/10.1515/cdem-2015-0004","url":null,"abstract":"Abstract The contribution describes the circumstances of the implementation of a chemistry project with the main theme “Chemical show - Harry Potter”. Project-based learning belongs between the complex teaching methods, where the desired effect can be influenced by many factors, eg student’s attitude, student’s overall opinion and feelings about the method. The motivation of the researchers was to understand and evaluate the factors present in the realised project. The analysed factors and behavioural schemes can provide a good starting point for the teachers at planning their projects. With the aim to understand the students’ reaction the researchers used Q-methodology to identify the different behavioural groups of participating students based on their real opinion. In the presented research the researchers analyse the response of totally 26 students. As a result totally 6 behavioural examples are presented that teachers can meet during implementation of project based learning. The presented categorization collaborates with other formerly publicised types of student’s behaviour, eg students of “pleasant surprises” and “disappointing surprises”. However, other additional types of behavioural types emerged eg students orienting and concentrating on the theoretical knowledge, students with very strong need for leading and students with the need of several assessment systems. The presented results can provide a wider view for the teachers in preparing and forecasting the flow of their projects and can help them to prepare the project.","PeriodicalId":41079,"journal":{"name":"Chemistry-Didactics-Ecology-Metrology","volume":"20 1","pages":"39 - 48"},"PeriodicalIF":0.4,"publicationDate":"2015-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1515/cdem-2015-0004","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"66777776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Preliminary Studies About Knowledge and Applications of Science Mnemonics by Polish Pupils 波兰小学生科学记忆法知识及应用的初步研究

IF 0.4

Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0002

K. Jurowski, A. Jurowska, M. Krzeczkowska

引用次数: 3

Evaluation of the Usefulness of Selected Computer Programs in the Context of Educating Students of the Environmental Engineering 环境工程专业学生教学中计算机程序的有用性评价

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Chemistry-Didactics-Ecology-Metrology Pub Date : 2015-12-01 DOI: 10.1515/cdem-2015-0003

Światosław Krzeszowski

引用次数: 3