scholarly journals Methodology for Measurement of Ammonia Emissions from Intensive Pig Farming

Agriculture ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1073
Author(s):  
Pavel Kriz ◽  
Radim Kunes ◽  
Lubos Smutny ◽  
Pavel Cerny ◽  
Zbynek Havelka ◽  
...  
Keyword(s):  
Time Windows ◽  
Arithmetic Mean ◽  
Sampling Time ◽  
Point Of View ◽  
Ammonia Emissions ◽  
Annual Average ◽  
Agriculture Sector ◽  
Microclimatic Conditions ◽  
One Year

Determination of ammonia (NH3) emissions for intensive livestock facilities (pork, poultry) is important from both a regulatory and a research point of view. Buildings housing livestock are a large source of ammonia emissions from the agriculture sector. However, measurements to determine emissions can be time-consuming and costly. Therefore, it is essential to find a suitable methodology for monitoring NH3. The methodology for determining NH3 emissions is legislatively unified in terms of sampling methodology, including sampling time (24 h), sampling points (input/output), number of sampling days, and their distribution during the year, and to determine only a general calculation of the annual average NH3 emissions. For this reason, the researchers chose different approaches for the calculation of NH3 emissions, and these approaches are not unified. Based on accurate monitoring and created models, the authors proposed a methodology for calculation of NH3 emissions, which divides the 24 h measurement into time windows (30 min), from which the arithmetic mean and standard deviation are determined, and the total emissions for one year is determined. The chosen time windows for the partial calculation are important from the point of view of reflecting the microclimatic conditions inside the stable and the device limits for sampling the NH3 concentration and airflow.

scholarly journals Ekološki otisak cestovnog prometa na cresko-lošinjskom arhipelagu

Geoadria ◽  
2017 ◽  
Vol 15 (2) ◽  
pp. 269
Author(s):  
Hrvoje Grofelnik
Keyword(s):  
Seasonal Variations ◽  
Co2 Emission ◽  
Road Traffic ◽  
Dominant Role ◽  
Point Of View ◽  
Co2 Absorption ◽  
Northern Adriatic ◽  
Open Sea ◽  
One Year

Cres-Lošinj Archipelago is the largest insular traffic unit in Northern Adriatic. The archipelago consists of two large islands, Cres and Lošinj, and 27 smaller islands located among Kvarner, Kvarnerić, Rijeka Bay and open sea. From the point of view of traffic, this area gravitates mostly toward Rijeka traffic node. Traffic development of the islands was determined in the second half of the 20th century with the development of ferry traffic and road traffic on the islands. Today, the Archipelago is characterized by prominent seasonal variations of road traffic intensity due to dominant role of tourism in space valorisation. This research included partial determination of Ecological Footprint of road traffic on the islands on the basis of CO2 emission and capacity of insular surfaces to absorb CO2 .The author also created a model for calculating road mileage on the islands and indirectly calculated CO2 emission. The results indicated significant seasonal variations of CO2  emission on the islands, which are closely related to tourist valorisation of space and the number of non-residential vehicles on the islands. The paper also provides the ratio between residential and non-residential vehicles on the island, which influence the emission in accordance with their energy efficiency. The research showed that the capacity of CO2  absorption on Cres-Lošinj Archipelago is approximately 40 times greater than CO2 emission from road traffic during one year. 

Evolution of Microclimatic Conditions in Paskov Mine / Ewolucja Warunków Mikroklimatycznych W Kopalni Paskov

2012 ◽  
Vol 57 (4) ◽  
pp. 1045-1055
Author(s):  
Pavel Zapletal ◽  
Pavel Prokop ◽  
Vítězslav Košňovský
Keyword(s):  
Coal Mining ◽  
Mining Activity ◽  
Mining Engineering ◽  
Special Program ◽  
Main Subject ◽  
Coal Basin ◽  
Research Activities ◽  
Microclimatic Conditions ◽  
Technical University

Abstract The main subject of this paper focuses on scientific and research activities conducted in the Institute of Mining Engineering and Safety of the VŠB-Technical University of Ostrava. Cooperation between the VŠB-Technical University of Ostrava and OKD A.S., the only representative of coal mining in the Ostrava-Karviná coal basin, has recently begun to develop again. This paper describes an example discussed in a certain study, which has been undertaken for the Paskov mine, OKD a.s., dealing specifically with the evolution of microclimate parameters in mines that depend on the progress of mining activity at deeper levels over a period of several years. To this end, a special program, aimed at determination of the necessary refrigerating capacity, was established at the VŠB-Technical University of Ostrava.

DETERMINATION OF AFTER-RIPENING PERIOD AND HORMONAL RESPONSE OF OROBANCHE SOLMSII C.D. CLARKE SEEDS

1970 ◽  
Vol 11 (1) ◽  
Author(s):  
A. Bista ◽  
G. B. Khattri ◽  
B. D. Acharya ◽  
S. C. Srivastava
Keyword(s):  
Growth Hormone ◽  
Seed Germination ◽  
Key Words ◽  
Incubation Period ◽  
Seed Set ◽  
Summer Season ◽  
Conditioning Period ◽  
Root Parasite ◽  
One Year

To find out the ability of Orobanche seeds to germinate immediately after seed set, seeds were germinated periodically at an interval of three months for one year in GR24. Some Orobanche seeds were capable of germination immediately after seed set but most required about nine months as after ripening or incubation period to be able to germinate. The phenomenon of after ripening in Orobanche seeds could be taken as an ecological measure to dormant over following unfavorable wet summer season. The growth hormone studies on Orobanche seed germination have shown that GA3 at a concentration of 100 ppm substantially enhanced seed germination when applied during pre-conditioning period. NAA showed some stimulatory effect at 0.5 - 1.0 ppm when applied during post-conditioning period but the hormone if applied during pre-conditioning period inhibited the germination. Kinetin failed to stimulate the germination at all the concentrations tested. Key words: Germination, root-parasite, hormone. Ecoprint Vol.11(1) 2004.

L’absence chez Michel Butor. L’Emploi du temps et Degrés

2012 ◽  
pp. 66-80
Author(s):  
Michał Mrozowicki
Keyword(s):  
Human Memory ◽  
Point Of View ◽  
Narrative Discourse ◽  
The Novel ◽  
Michel Butor ◽  
Starting Point ◽  
One Year ◽  
The Moment ◽  
Narrative Mode ◽  
The City

Michel Butor, born in 1926, one of the leaders of the French New Novel movement, has written only four novels between 1954 and 1960. The most famous of them is La Modification (Second thoughts), published in 1957. The author of the paper analyzes two other Butor’s novels: L’Emploi du temps (Passing time) – 1956, and Degrés (Degrees) – 1960. The theme of absence is crucial in both of them. In the former, the novel, presented as the diary of Jacques Revel, a young Frenchman spending a year in Bleston (a fictitious English city vaguely similar to Manchester), describes the narrator’s struggle to survive in a double – spatial and temporal – labyrinth. The first of them, formed by Bleston’s streets, squares and parks, is symbolized by the City plan. During his one year sojourn in the city, using its plan, Revel learns patiently how to move in its different districts, and in its strange labyrinth – strange because devoid any centre – that at the end stops annoying him. The other, the temporal one, symbolized by the diary itself, the labyrinth of the human memory, discovered by the narrator rather lately, somewhere in the middle of the year passed in Bleston, becomes, by contrast, more and more dense and complex, which is reflected by an increasinly complex narration used to describe the past. However, at the moment Revel is leaving the city, he is still unable to recall and to describe the events of the 29th of February 1952. This gap, this absence, symbolizes his defeat as the narrator, and, in the same time, the human memory’s limits. In Degrees temporal and spatial structures are also very important. This time round, however, the problems of the narration itself, become predominant. Considered from this point of view, the novel announces Gerard Genette’s work Narrative Discourse and his theoretical discussion of two narratological categories: narrative voice and narrative mode. Having transgressed his narrative competences, Pierre Vernier, the narrator of the first and the second parts of the novel, who, taking as a starting point, a complete account of one hour at school, tries to describe the whole world and various aspects of the human civilization for the benefit of his nephew, Pierre Eller, must fail and disappear, as the narrator, from the third part, which is narrated by another narrator, less audacious and more credible.

D’une hétérotopie à l’autre où le vagabondage au féminin (Jean Echenoz, Un an)

2014 ◽  
pp. 156-163
Author(s):  
Simona Jişa
Keyword(s):  
Point Of View ◽  
Standard Of Living ◽  
Human Being ◽  
The South ◽  
Railway Stations ◽  
Spatial Point ◽  
Strong Feeling ◽  
Continuous Decrease ◽  
One Year ◽  
Jean Echenoz

Jean Echenoz’s text presents Victoria’s story who runs away from Paris, believing that she has killed her lover. Her straying (that embraces the form of a relative deterritorialization in a Deleuzian sense) lasts one year and it is built up geographically upon a descent (more or less symbolical) to the South of France and, after that, she comes back to Paris and encloses the spatial and textual curl. From a spatial point of view, she turns into a heterotopia (Foucault) every place where she is located, fact that reflects her incapability of constituting a personal, intimate space. The railway stations, the trains, the hotels, the improvised houses of those with no fixed abode are turning, according to Marc Augé’s terminology, into a « non-lieux » that excludes human being. Her vagrancy is characterized through a continuous flight from police and people and through a continuous decrease of her standard of living and dignity. It’s not about a quest of oneself, but about a loss of oneself. Urged by a strong feeling of culpability, her vagrancy is a self-punishment that comes to an end when the concerns of her problems disappear and she finds out that her lover is alive.

scholarly journals Evaluation of the Ability to Accurately Produce Angular Details by 3D Printing of Plastic Parts

Machines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 150
Author(s):  
Andrei Marius Mihalache ◽  
Gheorghe Nagîț ◽  
Laurențiu Slătineanu ◽  
Adelina Hrițuc ◽  
Angelos Markopoulos ◽  
...  
Keyword(s):  
3D Printing ◽  
Point Of View ◽  
Vertex Angle ◽  
Function Type ◽  
Constant Height ◽  
3D Printers ◽  
3D Printed ◽  
Mathematical Processing ◽  
Plastic Parts

3D printing is a process that has become widely used in recent years, allowing the production of parts with relatively complicated shapes from metallic and non-metallic materials. In some cases, it is challenging to evaluate the ability of 3D printers to make fine details of parts. For such an assessment, the printing of samples showing intersections of surfaces with low angle values was considered. An experimental plan was designed and materialized to highlight the influence of different factors, such as the thickness of the deposited material layer, the printing speed, the cooling and filling conditions of the 3D-printed part, and the thickness of the sample. Samples using areas in the form of isosceles triangles with constant height or bases with the same length, respectively, were used. The mathematical processing of the experimental results allowed the determination of empirical mathematical models of the power-function type. It allowed the detection of both the direction of actions and the intensity of the influence exerted by the input factors. It is concluded that the strongest influence on the printer’s ability to produce fine detail, from the point of view addressed in the paper, is exerted by the vertex angle, whose reduction leads to a decrease in printing accuracy.

Determination of a Rubber-Like Material Model as an Inverse Problem

2011 ◽  
Vol 70 ◽  
pp. 225-230 ◽  
Author(s):  
Agnieszka Derewonko ◽  
Andrzej Kiczko
Keyword(s):  
Selection Process ◽  
Axial Stress ◽  
Constitutive Models ◽  
Material Model ◽  
Polyester Fabric ◽  
Point Of View ◽  
Air Cushion ◽  
Ill Conditioning ◽  
Stress States

The purpose of this paper is to describe the selection process of a rubber-like material model useful for simulation behaviour of an inflatable air cushion under multi-axial stress states. The air cushion is a part of a single segment of a pontoon bridge. The air cushion is constructed of a polyester fabric reinforced membrane such as Hypalon®. From a numerical point of view such a composite type poses a challenge since numerical ill-conditioning can occur due to stiffness differences between rubber and fabric. Due to the analysis of the large deformation dynamic response of the structure, the LS-Dyna code is used. Since LS-Dyna contains more than two-hundred constitutive models the inverse method is used to determine parameters characterizing the material on the base of results of the experimental test.

Resistance to Outflow of Cerebrospinal Fluid Determined by Bolus Injection Technique and Constant Rate Steady State Infusion in Humans

Neurosurgery ◽  
1985 ◽  
Vol 16 (3) ◽  
pp. 336-340 ◽  
Author(s):  
Michael Kosteljanetz
Keyword(s):  
Cerebrospinal Fluid ◽  
Steady State ◽  
Bolus Injection ◽  
Point Of View ◽  
Injection Technique ◽  
Communicating Hydrocephalus ◽  
Constant Rate ◽  
High Degree ◽  
Infusion Technique

Abstract Two methods for the determination of resistance to the outflow of cerebrospinal fluid, the bolus injection technique and the constant rate steady state infusion technique, were compared. Thirty-two patients with a variety of intracranial diseases (usually communicating hydrocephalus) were studied. There was a high degree of correlation between the resistance values obtained with the two methods, but values based on the bolus injection technique were systematically and statistically significantly lower than those obtained with the constant rate infusion test. From a practical point of view. both methods were found to be applicable in a clinical setting.

Understanding untreated hypertension from patients’ point of view: A qualitative study in rural Yogyakarta province, Indonesia

2017 ◽  
Vol 14 (3) ◽  
pp. 228-240 ◽  
Author(s):  
Riana Rahmawati ◽  
Beata Bajorek
Keyword(s):  
Blood Pressure ◽  
High Blood Pressure ◽  
Health Care Services ◽  
Point Of View ◽  
Rural Villages ◽  
Face To Face ◽  
Care Services ◽  
Alternative Medicines ◽  
One Year ◽  
Untreated Hypertension

Objectives This study aimed to explore perspectives about hypertension from patients who do not take anti-hypertensive medications. Factors that shape their perspectives as well as patients’ expectations were also canvassed. Method Individual, face-to-face interviews were conducted with 30 people (≥45 years old) living in rural villages, diagnosed with hypertension, who had not taken any anti-hypertensive medications for at least one year. Interviews were audiotaped, transcribed verbatim and thematically analysed. Results Four themes emerged: (1) alternative medicines for managing high blood pressure; (2) accessing health care services; (3) the need for anti-hypertensive medications; and (4) existing support and patients’ expectations. Reluctance to take anti-hypertensive medications was influenced by patients’ beliefs in personal health threats and the effectiveness of anti-hypertensive medications, high self-efficacy for taking alternative medicines, the lack of recommendation regarding hypertension treatment, and barriers to accessing supplies of medicines. Conclusion Despite their awareness of being diagnosed with hypertension, patients undervalued visiting a health professional to control their high blood pressure. Health strategies need to consider patients’ beliefs, concerns and expectations. Providing an accessible, affordable and adequate supply of hypertension medication is also key to any programs designed to optimise hypertension management.

3300MiR-126-3P and MiR-223-3p in Prediction of Thrombotic Risk in Patients with Acute Myocardial Infarction and Primary Angioplasty, The Prague-18 Genetic Sub-study

2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
M Hromadka ◽  
Z Motovska ◽  
M Karpisek ◽  
O Hlinomaz ◽  
R Miklik ◽  
...  
Keyword(s):  
Myocardial Infarction ◽  
Acute Myocardial Infarction ◽  
Antiplatelet Therapy ◽  
Arterial Disease ◽  
Smoking History ◽  
Bleeding Complications ◽  
Clinical Predictors ◽  
Thrombotic Risk ◽  
One Year

Abstract Background Balancing the intensity and duration of antiplatelet therapy according to thrombotic risk is a fundamental need in order to optimize therapy effectiveness and safety. Incorporation of new predictors in thrombotic risk stratification is therefore of a crucial importance for antiplatelet therapy net clinical benefit. Purpose The present analysis aimed to evaluate the relation of miR-126-3p and miR-223-3p, new markers of platelet activation, in order to facilitate prediction of recurrent thrombotic events after acute myocardial infarction (AMI). Method The analysis included 598 patients (age median 62 years, men 77.8%) randomized in the Prague-18 study (ticagrelor vs. prasugrel in AIM treated with primary PCI). During the study follow up, 40.6% of patients switched to clopidogrel. Determination of miR was evaluated 24 hours after admission; miR-126-3p and miR-223-3p were normalized by miR-423-3p and miR-150-5p. Quantitative determination of selected miRNAs was performed with a novel microRNA immunoassay method. Selected miRNAs were compared with key efficacy endpoints (cardiovascular death, nonfatal MI and stroke), stent thrombosis and all hemorrhagic events, and analysed using univariate and multivariate logistic regressions. Results Increased values of miR-223-3p were significantly related to the occurrence of combined ischemic endpoint within 30 days [OR (95% CI) 15.739 (2.066; 119.932) p=0.008] and within one year [3.175 (1.40; 7.186) p=0.006]. Decreased ratio of miR-126-3P/miR-223-3p was significantly related to the occurrence of combined ischemic endpoint within 30 days [0.137 (0.031; 0.609) p=0.009] and one year [0.372 (0.169; 0.819) p=0.014]. MiRNAs were identified as independent predictors even after adjustment for confounding clinical predictors (Study arm, Switch to Clopidogrel, Age, Men, BMI, Smoking, History of Hyperlipidemia, Hypertension, DM, MI, PCI, CABG, Chronic heart failure, Chronic renal failure, Peripheral arterial disease, LBBB, RBBB, TIMI <3 after PCI, Number of diseased vessels >1, Stem disease, Suboptimal of failure of PCI, Time to hospital). Adjusted ORs (95% CI) are 11.828 (1.472; 98.011), p=0.022 and 2.394 (1.021; 5.610), p=0.045 for increased value of miR-223-3p and the occurrence of combined ischemic endpoint within 30 days and one year respectively; 0.151 (0.030; 0.757), p=0.022 and 0.407 (0.179; 0.925), p=0.032 for decreased ratio of miR-126–3P/miR-223-3p and the occurrence of combined ischemic endpoint within 30 days and one year respectively. No association between miRNA and bleeding complications was identified. Conclusion The miR-223-3p and miR-126-3p to miR-223-3p ratio are strong independent predictors of thrombotic ischemic events and can be used to stratify patients post AMI.

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