scholarly journals The influence of relative humidity on fires in forests of Central Poland

2018 ◽  
Vol 79 (3) ◽  
pp. 269-279
Author(s):  
Krystyna Konca-Kędzierska ◽  
Krystyna Pianko-Kluczyńska
Keyword(s):  
Relative Humidity ◽  
Forest Fires ◽  
Cross Correlation ◽  
Fire Risk ◽  
Low Humidity ◽  
Cross Tabulation ◽  
The Relationship ◽  
Fire Information

Abstract The purpose of the present work was to answer the question of how and to what extent information about low air humidity in a selected area can be used in determining the fire risk. The central region as defined in the Classification of Territorial Units for Statistics (NUTS) was selected for the study, because this classification is also used in the National Fire Information System, which provides data on the number of forest fires. Data on humidity for a given region were taken from the synoptic or climatic station of The Institute of Meteorology and Water Management – National Research Institute (IMGW-PIB) located in the region. Two independent experiments were conducted based on various methodological assumptions. In experiment A, the main focus was on humidity deficit, as defined by nine different indicators. Using the relative risk and the Jaccard index, their connection to fire cases of third class or higher was studied. A class reconstruction of the number of fires was also carried out using the fuzzy analogues method, and the obtained reconstructions were evaluated using cross-correlation indicators in contingency tables. In experiment B, correlation relationships between the number of fires and the annual characteristics of relative humidity were studied. In order to use the association measures in the cross-tabulation tables, the number of fires and humidity characteristics were categorised using quantiles. The relationship between the number of fires and the percentage share of low-humidity (<40%) days in the year was tested using the Mann–Whitney test. The obtained values of the examined correlation indices and the analysis of correlation relationships emphasise the important role of relative humidity dynamics in determining the fire risk.

scholarly journals Formation of an Export-Oriented Agricultural Economy and Regional Open Innovations

2021 ◽  
Vol 7 (1) ◽  
pp. 32
Author(s):  
Victor L. Shabanov ◽  
Marianna Ya Vasilchenko ◽  
Elena A. Derunova ◽  
Andrey P. Potapov
Keyword(s):  
Agricultural Economy ◽  
Institutional Management ◽  
Agricultural Exports ◽  
Modeling Methodology ◽  
Fixed Assets ◽  
Analysis Application ◽  
The Impact ◽  
The Relationship

The aim of the work is to find relevant indicators for assessing the relationship between investments in fixed assets in agriculture, gross output of the industry, and agricultural exports using tools for modeling the impact of innovation and investment development on increasing production and export potential in the context of the formation of an export-oriented agricultural economy. The modeling methodology and the proposed estimating and forecasting tools for diagnosing and monitoring the state of sectoral and regional innovative agricultural systems are used to analyze the relationship between investments in fixed assets in agriculture, gross output of the industry, and agricultural exports based on the construction of the classification of Russian regions by factors that aggregate these features to diagnose incongruence problems and to improve institutional management in regional innovative export-oriented agrosystems. Based on the results of the factor analysis application, an underestimated role of indicators of investment in agriculture, the intensity and efficiency of agricultural production, were established. Based on the results of the cluster analysis, the established five groups of regions were identified, with significant differences in the level of investment in agriculture, the volume of production of the main types of agricultural products, and the export and exported food. The research results are of practical value for use in improving institutional management when planning reforms and transformations of regional innovative agrosystems.

scholarly journals The Effect of Temperature and Humidity May Reduce the Growth Rate of the Coronavirus Disease 2019 Epidemic

2020 ◽  
Author(s):  
Lei Qin ◽  
Qiang Sun ◽  
Jiani Shao ◽  
Yang Chen ◽  
Xiaomei Zhang ◽  
...  
Keyword(s):  
Growth Rate ◽  
Relative Humidity ◽  
Effect Of Temperature ◽  
Average Temperature ◽  
Temperature And Humidity ◽  
Scatter Plots ◽  
Low Humidity ◽  
Average Relative Humidity ◽  
Effects Of Temperature ◽  
The Relationship

Abstract Background: The effects of temperature and humidity on the epidemic growth of coronavirus disease 2019 (COVID-19)remains unclear.Methods: Daily scatter plots between the epidemic growth rate (GR) and average temperature (AT) or average relative humidity (ARH) were presented with curve fitting through the “loess” method. The heterogeneity across days and provinces were calculated to assess the necessity of using a longitudinal model. Fixed effect models with polynomial terms were developed to quantify the relationship between variations in the GR and AT or ARH.Results: An increased AT dramatically reduced the GR when the AT was lower than −5°C, the GR was moderately reduced when the AT ranged from −5°C to 15°C, and the GR increased when the AT exceeded 15°C. An increasedARH increased theGR when the ARH was lower than 72% and reduced theGR when the ARH exceeded 72%.Conclusions: High temperatures and low humidity may reduce the GR of the COVID-19 epidemic. The temperature and humidity curves were not linearly associated with the COVID-19 GR.

scholarly journals Are Virtual Particles Less Real?

Entropy ◽  
2019 ◽  
Vol 21 (2) ◽  
pp. 141 ◽  
Author(s):  
Gregg Jaeger
Keyword(s):  
Quantum Field ◽  
Interacting Particles ◽  
Virtual Particles ◽  
Quantum Particles ◽  
Action At A Distance ◽  
Relationship Of ◽  
The Relationship

The question of whether virtual quantum particles exist is considered here in light of previous critical analysis and under the assumption that there are particles in the world as described by quantum field theory. The relationship of the classification of particles to quantum-field-theoretic calculations and the diagrammatic aids that are often used in them is clarified. It is pointed out that the distinction between virtual particles and others and, therefore, judgments regarding their reality have been made on basis of these methods rather than on their physical characteristics. As such, it has obscured the question of their existence. It is here argued that the most influential arguments against the existence of virtual particles but not other particles fail because they either are arguments against the existence of particles in general rather than virtual particles per se, or are dependent on the imposition of classical intuitions on quantum systems, or are simply beside the point. Several reasons are then provided for considering virtual particles real, such as their descriptive, explanatory, and predictive value, and a clearer characterization of virtuality—one in terms of intermediate states—that also applies beyond perturbation theory is provided. It is also pointed out that in the role of force mediators, they serve to preclude action-at-a-distance between interacting particles. For these reasons, it is concluded that virtual particles are as real as other quantum particles.

Update on Psychotropic Medications for Cancer-Related Fatigue

2007 ◽  
Vol 5 (10) ◽  
pp. 1081-1091 ◽  
Author(s):  
William Breitbart ◽  
Yesne Alici-Evcimen
Keyword(s):  
International Classification Of Diseases ◽  
Psychotropic Medications ◽  
Cancer Related Fatigue ◽  
Classification Of Diseases ◽  
Dopamine Reuptake Inhibitor ◽  
Functional Morbidity ◽  
The Relationship

Fatigue is a common and highly distressing symptom of cancer associated with reduced quality of life and considerable psychological and functional morbidity. The reported prevalence of cancer-related fatigue ranges from 4% to 91%, depending on the specific cancer population studied and the methods of assessment. Cancer-related fatigue has typically been underreported, underdiagnosed, and undertreated. Fatigue and depression may coexist in cancer patients, and considerable overlap of symptoms occurs. This is partly the reason for the interest in examining the role of psychotropic medications in treating fatigue. Clarifying the relationship between depression and fatigue is necessary to effectively evaluate and treat cancer-related fatigue. Even with International Classification of Diseases criteria, differentiating cancer-related fatigue is difficult. Psychotropic drugs that have been studied for cancer-related fatigue include psychostimulants, wakefulness-promoting agents, and anti-depressants. Methylphenidate has been studied most and seems to be effective and well tolerated despite common side effects. Some preliminary data support using modafinil in cancer-related fatigue with less concern about tolerance or dependence. Antidepressant studies have shown mixed results. Paroxetine seems to show benefit for fatigue primarily when it is a symptom of clinical depression. Bupropion, a norepinephrine/dopamine reuptake inhibitor, may have psychostimulant-like effects, and therefore may be more beneficial for treating fatigue. However, studies are currently limited. Randomized, placebo-controlled trials with specific agents are needed to further assess the efficacy and tolerability of psychotropic medications in the treatment of cancer-related fatigue.

Does peer tutoring in kindergarten exist? Thinking around the tutoring concept.

2019 ◽  
Vol X (4 (29)) ◽  
pp. 63-84
Author(s):  
Aneta Babiuk-Massalska
Keyword(s):  
Nervous System ◽  
Preschool Child ◽  
Social Experiences ◽  
The Other ◽  
Older Children ◽  
Student Relationship ◽  
Definition Of ◽  
The Relationship

The article reviews the definitions of the tutoring concept in preschoolers relationships. Can we qualify the relationships of preschool children in learning situations as tutoring? Or maybe a different name would be more suitable for them? Preschoolers are used to learning in a different way than adults and older children. They prefer learning mimicking or playing. They obtain knowldge occasionally an unintentionally. In turn, definitions of tutoring quite precisely contain formulated fortifications that a little child is not able to meet yet. Immaturity of the nervous system limit the level and length of attention span of little child and relatively small, compared to school children and adults number of social experiences can seriously hamper the classification of situations in which children learn from each other as tutoring. While the generally understood master-student relationship, associated with tutoring, is quite often noticeable during childhood collaboration and play in which one child can do more than the other, the more detailed assumptions of tutoring are not as accessible to the observer. For example, it is difficult to talk about the regularity or planned nature of children's relationships. The definition of tutoring also sets specific expectations regarding the teacher's skills, among which are: high interpersonal competences, commitment to the relationship with the mentee, professionalism and responsibility. From a preschool child who would play the role of a teacher, it is difficult to demand fluent speech, not to mention professionalism and regularity. A preschool child, who just start to learn numbers, is often unable to orient himself in time, which makes it difficult or even impossible to plan and systematize his activities. Little child needs adult help in this area.

Research and selection of rational parameters of a refrigerated container terminal

Innotrans ◽  
2021 ◽  
pp. 32-38
Author(s):  
Nazirjhon M. Aripov ◽  
◽  
Daurenbek I. Ilesaliev ◽  
Jamshid R. Kobulov ◽  
Shahboz R. Abduvahitov ◽  
...  
Keyword(s):  
Mutual Influence ◽  
Container Terminal ◽  
Technological Support ◽  
System A ◽  
Parametric Description ◽  
A Site ◽  
The Relationship ◽  
Selection Of

The article considers the role of transport and refrigerated warehouse complexes in continuous refrigerating supply chains (CRSCs). A summary diagram of technical and technological support is formed, describing the relationship and mutual influence of the elements of the CRSC system. A structural and parametric description of a refrigerated container terminal is carried out. The classification of the parameters of a refrigerated container terminal according to various characteristics is developed. The relationships between the parameters of a refrigerated container terminal are presented in the form of mathematical models. The dependence of the capacity of a refrigerated container terminal with respect to the length of a site is obtained.

The 2016 Mw 7.8 Kaikoura earthquake and its relationship to tremors.

2020 ◽  
Author(s):  
Pierre Romanet ◽  
Florent Aden-Antoniow ◽  
Satoshi Ide
Keyword(s):  
Cross Correlation ◽  
Seismic Energy ◽  
Slow Slip ◽  
Unexpected Events ◽  
Slow Slip Event ◽  
Slow Earthquakes ◽  
Slip Event ◽  
Kaikoura Earthquake ◽  
The Relationship

&lt;p&gt;The relationship between slow earthquake and regular earthquake is fundamental question in seismology. It was already shown that some slow slip event may have led to some megathrust event. In return, passing surface wave from earthquake may also trigger tremors and slow slip event. Documenting these possible triggering effects between slow and fast events is of primary importance to understand them.&lt;/p&gt;&lt;p&gt;In this study we will focus more particularly on Marlborough region, in a region that was subject to the Mw 7.8 2016 Kaikoura earthquake. Two years before Kaikoura earthquake, we observed a Northeast to Southwest migration of tremors, getting closer to the hypocenter of Kaikoura earthquake. Despite being speculative, this may indicate that a slow slip event is happening shortly before Kaikoura earthquake, which is also supported by a small signal in two GPS stations nearby. After the earthquake, the rate of tremors increased in the region. Studying the relationship between tremors and the Kaikoura earthquake may provide some information on the role of the subduction in the region, as well as provide a new documented interaction of slow earthquakes with a crustal earthquake.&lt;/p&gt;&lt;p&gt;To detect and locate tremors, we use broadband and shortband velocity traces from the GeoNet network. The traces are bandpass filtered between 2-8Hz, and transform into envelope. Then we apply a classic cross-correlation technic to detect and locate the events. To remove unexpected events (i.e.: earthquakes), we used a criteria base on seismic energy and duration. Finally, we manually check each velocity traces and spectrograms.&lt;/p&gt;

Effects to Forest Fire Occurrence of Climate Change in Ta He Forestry Bureau in Great Xing’an Mountain

2011 ◽  
Vol 183-185 ◽  
pp. 135-139
Author(s):  
Zhan Shu ◽  
Xue Ying Di ◽  
Hui Huang
Keyword(s):  
Wind Speed ◽  
Relative Humidity ◽  
Forest Fire ◽  
Forest Fires ◽  
Ecological Factors ◽  
Burned Area ◽  
Fire Cycle ◽  
Julian Date ◽  
Linear Relationships ◽  
The Relationship

Forest fire is one of the most important ecological factors in the forest ecosystem. The Great Xing’an Mountain region has not only the largest forest areas, but also the biggest forest fire burned area in China. By analyzing the recorded climate and forest fire data of Ta He forestry bureau from 1974 to 2004, the following results can be concluded: (1) There were 298 forest fires recorded by Ta He forestry bureau during 31 years and the burned area were 1.63 million hectares totally with 9.6 forest fires per year, unpredictable and short fire cycle as characters. (2) According to the occurrence time of forest fires, the Julian date concentrated between 102~181 and 240~293, corresponding April 12th to June 30th and August 28th to October 20th, which were spring and autumn fire prevention periods. Major fires mainly occurred in spring of 1974~1982, 1986~1987, 1993, and 1998~2002. The major fires cycle were 4 to 5 years. (3) The related indices of temperature, relative humidity, rainfall, and wind speed recorded in June in Ta He forestry bureau were 0.3929, 0.5274, 0.6136 and 0.1679. Temperature, relative humidity and rainfall factors in June had obvious linear relationships to forest fires, while the relationship between wind speed and forest fires is unobvious.

Some Insights on the Role of Relative Humidity and Compaction on the Carbonation Rate of CaO/SiO2 (50/50) Clinker

2016 ◽  
Vol 711 ◽  
pp. 837-843
Author(s):  
Marco Agnelli ◽  
Bruno Huet ◽  
Vincent Briaud ◽  
Elodie André ◽  
Alexander Pisch
Keyword(s):  
Relative Humidity ◽  
Reaction Rate ◽  
Mass Gain ◽  
Testing Procedure ◽  
Phase Assemblage ◽  
Carbonation Reaction ◽  
Curing Conditions ◽  
The Relationship ◽  
Mineralogical Assemblage

This paper focuses on the carbonation of non-hydraulic binders based primarily on wollastonite (CaSiO3) in order to study the relationship between clinker composition, curing conditions and compaction on carbonation reaction rate. Decoupled carbonation and drying experiments are carried out using cements at different CaO/SiO2 ratio, at 60 °C, 1 bar of CO2 and multiple RH (relative humidity) and compaction degrees. Solid analysis include mass gain or loss, TGA, XRF and Carbon/Hydrogen (CH) to determine respectively the bound H2O content, CO2 content and the mineralogical assemblage. Relative humidity strongly influences carbonation intrinsic reaction rate, while compaction seems to be a second order mechanism. Testing procedure can be used to discriminate the reactivity of clinkers with various initial phase assemblage.

The relationship between NPD innovation and NPD performance: the moderating role of NPD best practices in Indian manufacturing industry

2014 ◽  
Vol 18 (2) ◽  
pp. 39-59 ◽  
Author(s):  
Kalluri Vinayak ◽  
Rambabu Kodali
Keyword(s):  
Best Practices ◽  
New Product Development ◽  
Manufacturing Industry ◽  
Performance Indices ◽  
Content Type ◽  
The Relationship ◽  
Positive Effect ◽  
Npd Performance

Purpose – The purpose of the study is to study the relation between new product development (NPD) innovation and NPD best practices in an organization with respect to NPD performance in the backdrop of Indian manufacturing industry. Design/methodology/approach – Performance indices are developed based on NPD innovation and NPD best practices in an organization. Based on the developed performance indices, a cluster typology or classification of surveyed organizations is conducted. Different hypotheses are generated and tested to chet1ck the relation between NPD best practices and NPD innovation in an organization with respect to NPD performance in the Indian manufacturing industry. Findings – The following results were obtained: there is a positive effect on NPD performance for those organizations that strongly implement NPD best practices; the stronger the NPD innovation, the higher the NPD performance; and stronger organizations' ability for NPD innovation has positive relationship with NPD best practices. Hence, it is proven that, “the stronger the NPD innovation in an organization, with defined NPD best practices, the better the NPD performance”. Originality/value – According to the author’s knowledge, no study is reported in literature which addresses the effect of NPD best practices and NPD innovation in an organization with respect to performance in the Indian manufacturing industry.

Sign in / Sign up

Export Citation Format

Share Document