FACTORS AFFECTING CHANGES IN QUALITY PARAMETERS OF MEDICINAL WATERS IN SZCZAWNO-ZDROJ (SUDETY MOUNTAINS, POLAND)

2018 ◽  
Author(s):  
Barbara Kielczawa
Keyword(s):  
Quality Parameters ◽  
Factors Affecting ◽  
Sudety Mountains ◽  
Medicinal Waters

Floristic study and assessment of the environmental factors governing the distribution of riparian plants in the Zat sub-Basin: Tensift Watershed, Morocco

2020 ◽  
Vol 45 (2) ◽  
pp. 7900-7915
Author(s):  
Mostakim Lahcen ◽  
Fetnassi Nidal ◽  
Ghamizi Mohamed
Keyword(s):  
Environmental Factors ◽  
Pearson Correlation ◽  
Ecological Status ◽  
Environmental Parameters ◽  
Quality Parameters ◽  
Phosphorus Concentration ◽  
Factors Affecting ◽  
Riparian Plants ◽  
Emergent Plants ◽  
Significant Difference

Measuring the phytodiversity and determining environmental factors affecting the abundance and distribution of riparian plants of Zat sub-basin in Morocco were carried out in this study. A hypothesis was tested whether there is any statistically significant difference in environmental parameters and plants communities among the Zat River and its tributaries. For this purpose, water quality parameters such as temperature, pH, salinity, electrical conductivity, Dissolved Oxygen, nitrate and phosphorus concentration, and riparian plants diversity were estimated at 17 stations along the Zat River and its tributaries during the periods (2018 and 2019). The Canonical Correspondence Analysis (CCA) and Pearson correlation were preformed to assess the relationship between environmental parameters, and the distribution and abundance of riparian plants inventoried. The presence of 113 species was recorded, distributed between 43 families and 97 genera, 9 of which were floating-leaved, 24 submerged, and 80 emergent plants. The rare and threatened species inventoried were represented by 7 taxa, whereas 6 species are reported as endemic. Raunkiaer classification showed a dominance of therophytes (38.39%) over the other groups. According to CCA, the abiotic parameters (DO, elevation, salinity and nitrate concentration) were statistically significant parameters governing the distribution and abundance of the riparian plants inventoried. The results obtained reveal the state of the riparian vegetation in the Zat subBasin, therefore we can consider them as a reliable component for the assessment of the ecological status of the aquatic environment.

Factors affecting the eating quality of pork

2000 ◽  
Vol 2000 ◽  
pp. 122-122
Author(s):  
M.J. Van Oeckel ◽  
N. Warnants ◽  
Ch.V. Boucqué
Keyword(s):  
Sensory Quality ◽  
Quality Parameters ◽  
Sensory Properties ◽  
Eating Quality ◽  
Factors Affecting ◽  
Pork Production ◽  
Belgian Study

A Belgian study shows that the five most important meat attributes for the consumers are as follows: quality, taste, freshness, absence of hormones and healthiness (Verbeke and Viaene, 1999). This corroborates with the results of a French survey by Touraille (1992), who found that sensory properties and security aspects (hormones) of meat are of paramount importance for the consumer. It is important to direct pork production towards an acceptable product adapted to the consumer's demand. The objective of this study is to evaluate in which way and how strong the sensory quality parameters are influenced by different factors.

THE INFLUENCE OF ENVIRONMENTAL FACTORS ON THE CROP AND QUALITY OF FIBER FLAX

2020 ◽  
Vol 5 (86) ◽  
pp. 3-10
Author(s):  
V.G. Chernikov ◽  
◽  
R.A. Rostovtsev ◽  
N.A. Kudryavtsev ◽  
I.V. Uschapovsky ◽  
...  
Keyword(s):  
Environmental Factors ◽  
Raw Materials ◽  
Great Influence ◽  
Quality Parameters ◽  
Anthropogenic Factors ◽  
Soil Conditions ◽  
Factors Affecting ◽  
Fiber Flax ◽  
Yield And Quality

The formation of fiber flax yield and quality parameters depends on many soil-climatic, breedinggenetic, as well as anthropogenic factors. The quality of flax fiber is a combination of a number of features and properties that depend on the varietal characteristics of plants, the conditions of their cultivation, technologies for harvesting and straw retting, as well as on the processing modes of raw materials. During plant vegetation (90-130 days) many factors such as soil conditions (pH 4.8-5.5, humus 1.8-2.5%, P2O5 and K2O – 150-200 and 100-200 mg/kg, respectively) and the area of plant nutrition (15-30 million seeds/ha), temperature regime (the sum of active temperatures 1000-1800ºC), water supplying (400-430 units of water mass to create 1 unit of dry matter) and insolation (the arrival of FAR during the growing season 20-25 kcal / cm²), contamination of weeds (more than 60 annual and perennial species) and pests (more than 200 types of fungal, bacterial and viral diseases), features of phytosanitary measures (more than 50 chemicals) and agrotechnologic manners (Federal Register of technologies for the production of crop products) have a great influence on the quality of flax raw materials and can be a limit factor. Environmentally hazardous pollution of air, water and soil - the main components for the production of fiber flax – strongly affects the yield and quality of flax products. The development of waste-free environmentally friendly technologies for the cultivation, harvesting and processing of flax is an urgent task of scientific support of the industry. The main environmental factors affecting the yield and quality of fiber flax are discussed in the article.

Cam_Gate System in Product Quality Control, Optimal Selection of Inspecting-Sorting Automatic Machines

2013 ◽  
Vol 198 ◽  
pp. 445-450
Author(s):  
Krzysztof Łasiński
Keyword(s):  
Quality Control ◽  
Product Quality ◽  
Ccd Camera ◽  
Quality Parameters ◽  
System Structure ◽  
Optimal Selection ◽  
Product Quality Control ◽  
Factors Affecting ◽  
Dimensional Parameters ◽  
Selection Of

The paper addresses the possibilities of applying the cam_gate system to product quality control. Particular attention is paid to the concept of the test stand simulating the operation of the product quality control automatic machine with the use of the CCD camera. Dimensional parameters of rollers were measured by means of a micrometer screw and the CCD camera at the simulation stand in the cam_gate system and the results of measurements were compared. The paper presents the cost system structure of an enterprises and factors affecting the selection of inspecting-sorting automatic machines in the aspect of the prescribed quality parameters which condition the optimal selection.

THEORETICAL DEFINITION FOR QUALITY PARAMETERS OF SURFACE LAYER IN PARTS, TOOL-ELECTRODE WEAR AND PROCESS PRODUCTIVITY AT ELECTROEROSION MACHINING

2016 ◽  
Vol 2016 (1) ◽  
pp. 67-73 ◽  
Author(s):  
Сергей Съянов ◽  
Sergey Syanov
Keyword(s):  
Surface Layer ◽  
Material Removal ◽  
Solid Material ◽  
Quality Parameters ◽  
Tool Electrode ◽  
Electrode Wear ◽  
Factors Affecting ◽  
Electric Erosion ◽  
Machining Properties ◽  
Process Productivity

An electric erosion process serves as a basis for electroerosion machining (EEM) as a result of which occurs a material removal from the surface of a product. The destruction of electrode surface takes place at the expense of melting and partial evaporation of material. As a result of this the cavities called holes remain on a surface and also changes arise on the surface layer of a billet. A microrelief of a surface is formed with considerable quantity of mutually covered holes having different geometrics the knowledge of which allowed determining height and pitch parameters of roughness. Upon a corrugation formation at electroerosion machining has an influence a lot of factors which may be or may be not depending on a machining procedure and on whether machining is to be carried out on solid material or a surface prepared earlier should be machined. To the basic factors affecting the surface corrugation at EEM should be referred parameters conditioned on the influence of a billet initial corrugation, tool initial corrugation, influence of fluctuations in technological modes of machining. Having defined these parameters it should be possible to compute a corrugation at EEM. To analyze microhardness and residual stresses at EEM, first, it should be necessary to know a temper-ature field distribution in the surface layer of a product that will allow defining quality parameters mentioned above. To determine volumetric wear of a tool-electrode and EEM productivity it should be necessary to know the following: physical stress-strain properties of work material and material of a tool-electrode; modes of electro-erosion machining; properties of dielectric liquid.

Quality Analysis of Pig Iron Produced in One of Polish Steelworks

2012 ◽  
Vol 706-709 ◽  
pp. 2146-2151
Author(s):  
Edyta Kardas
Keyword(s):  
Steel Production ◽  
Optimal Level ◽  
Quality Parameters ◽  
Point Of View ◽  
Quality Analysis ◽  
Pig Iron ◽  
Factors Affecting ◽  
Basic Quality ◽  
Quality Tools

The quality of pig iron from the point of view of the customer, that is steel plant, is one of main factors affecting the quality and cost of steel production. Chemical composition and temperature of pig iron is among the parameters taking into consideration. The constancy of these parameters can result in steelmaking process on optimal level. The paper presents quantitative and quantitative analysis of pig iron produced in one of Polish steelworks. Analysis of the basic quality parameters of pig iron: the content of basic elements will be made. In the analysis statistical methods and quality tools will be applied.

scholarly journals Evaluation of groundwater quality in central Saudi Arabia using hydrogeochemical characteristics and pollution indices

2021 ◽  
Author(s):  
Talal Alharbi ◽  
Abdelbaset Sabry El-Sorogy ◽  
Saleh Qaysi ◽  
Fahad Alshehri
Keyword(s):  
Heavy Metal ◽  
Saudi Arabia ◽  
Groundwater Quality ◽  
Heavy Metal Contamination ◽  
Pollution Index ◽  
Poor Quality ◽  
Quality Parameters ◽  
Pollution Indices ◽  
Multivariate Statistical ◽  
Factors Affecting

Abstract The groundwater quality and heavy metal contamination were evaluated in thirty palm farms, central Saudi Arabia using pollution indices, irrigation quality parameters, and multivariate statistical analyses. The results showed that the average values of TDS, Ca + , Na + , K + , Cl − , SO 4 2− , and F − were greater than the permissible limits of the WHO standards for drinking water. The groundwater facies types were Ca–Na–SO 4 –Cl (23 samples), Ca–Cl–SO 4 , (4 samples), and Ca–SO 4 –Cl type (3 samples). The groundwater quality index indicated that 15 groundwater samples were of good quality and 15 were of poor quality, whereas the metal index and heavy metal pollution index indicated that all samples were categorized as slightly affected and with low pollution, respectively. The variation is attributed to the increasing average values of some ions and decreasing HMs. The dissolution/precipitation of silicates, gypsum, and carbonates, and soil leaching were the natural factors affecting groundwater chemistry, whereas higher PO 4 3− , NO 3 − , F − , Pb, and Zn values in some samples may be attributed to human activities from the extensive use of fertilizers and pesticides on the investigated farms.

scholarly journals Influence of Ripening on Polyphenolic Content, Degradative, and Browning Enzymes in Cantaloupe Varieties (C. Melo, L.)

Horticulturae ◽  
2021 ◽  
Vol 7 (11) ◽  
pp. 421
Author(s):  
Filomena Monica Vella ◽  
Roberto Calandrelli ◽  
Bruna Laratta
Keyword(s):  
Cell Wall ◽  
Shelf Life ◽  
Consumer Preferences ◽  
Antioxidant Activities ◽  
Quality Parameters ◽  
Lytic Enzyme ◽  
Factors Affecting ◽  
Fresh Products ◽  
Cucumis Melo L

The biochemical changes that occur during the growth and ripening of fruit and vegetable tissues, especially for color and firmness, are the most important factors affecting the quality of fresh products. Cantaloupe (Cucumis melo, L.) is one of the main economically important fruits in the world and its quality parameters, e.g., sweetness, nutritional factors, and texture, influence consumer preferences. Hence, these two features, appearance and texture changes, were investigated in three different genotypes of netted melon, all characterized by an extended shelf life but with different ripening phases. In particular, in all melon cultivars, the cell wall-modifying enzymatic activities and indicators of softening as well as total polyphenols, ortho-diphenols, flavonoids, and tannins, and antioxidant activity were studied. One variety with excellent shelf-life displayed the best nutritional and healthy qualities, in the early stages of ripening, and the lowest degree of browning. The lytic enzyme activities were reduced in the initial stages and after they increased gradually until the overripe stage, with the same trend for all varieties under investigation. The antioxidant activities declined with increasing time of ripeness in all genotypes. The outcomes confirm that the activities of both classes examined, antioxidant and cell wall-modifying enzymes, may vary significantly during ripeness depending on the genotype, suggesting the involvement in determining the postharvest behavior of these fruits.

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