9 research outputs found

    Microservice development using RabbitMQ message broker

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    Nowadays, when applications are being developed faster with the introduction of agile methodologies and new technologies, microservices are emerging. The microservices make applications easier to create and maintain when broken down into smaller parts, which form a whole application. RabbitMQ acts as an intermediary between the various services. It reduces the load and delivery time on server web applications by delegating tasks that would typically take a lot of time and resources. Message queuing allows web servers to respond quickly to requests rather than being forced to perform complex procedures that can take more time and resources. AMQP (Advanced Message Queuing Protocol) is a message protocol that deals with publishers and consumers like any other messaging system. Publishers produce messages while consumers download and process them. The job of message brokers, such as RabbitMQ, is to ensure that messages from publishers go to the right consumers. To do this, the broker uses two key components: exchange and order. We demonstrated that the style of microservice architecture is an approach to the development of an application as a set of small services, each in charge of its own process and communication with other services

    Umfassende Analyse niedriger WasserstƤnde in der weiteren Zusammenflussregion der FlĆ¼sse Drina und Sava

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    Ideja ovoga rada je da prikaže osnovne rezultate sprovedene sveobuhvatne analize malih voda Save i Drine u zoni uŔća Drine. U radu se prikazuju kvantitativne karakteristike malih voda koje se najčeŔće koriste kao podloga pri projektovanju većine vodoprivrednih i hidrotehničkih objekata. Posebno je detaljno analizirana dužina malovodnih perioda ispod repernih protoka - protoka određenih za izabrana trajanja sa krivih trajanja srednjih dnevnih protoka. Primenjen je novi pristup koji, pored klasične probabilističke analize minimalnih godiÅ”njih i minimalnih srednjih mesečnih protoka, obuhvata i analizu dužina neprekidnih malovodnih perioda sa protocima manjim od protoka karakterističih trajanja, njihovu unutargodiÅ”nju raspodelu i zastupljenost. Bazni podaci koji su koriŔćeni za proračun malih voda su zvanični podaci Državnog hidrometeoroloÅ”kog zavoda Hrvatske iz Zagreba (DHMZ) i Republičkog hidrometeoroloÅ”kog zavoda Srbije iz Beograda (RHMZ) na hidroloÅ”kim stanicama (HS) Županja i Sremska Mitrovica na reci Savi i Radalj na reci Drini.The idea of this paper is to present the main results of a comprehensive analysis of the Sava and Drina low water discharges in the area of the Drina river mouth. The paper presents the quantitative characteristics of low discharges that are generally used as a basis for designs of the majority of water management and hydrotechnical facilities. The particular focus is a detailed analysis of the length of low discharge periods below the initial discharges, which were determined for selected durations from the curves of average daily discharge durations. A new approach was applied which, in addition to the classic probabilistic analysis of minimum annual and minimum average monthly discharges, also includes the analysis of the length of continuous low discharge periods with discharges lower than the discharges of characteristic durations, their intra-annual distribution and representation. The basic data used for the calculation of low discharges are the official data of the Croatian Meteorological and Hydrological Service from Zagreb (DHMZ) and the Republic Hydrometeorological Institute of Serbia from Belgrade (RHMZ) at the hydrological stations (HS) Županja and Sremska Mitrovica on the Sava River and Radalj on the Drina River.Das Ziel dieses Beitrags ist es, die wichtigsten Ergebnisse einer umfassenden Analyse niedriger WasserstƤnde der FlĆ¼sse Drina und Sava in der Zusammenflusszone darzustellen. Es werden quantitative Eigenschaften niedriger WasserstƤnde dargestellt, die am hƤufigsten als Grundlage fĆ¼r die Projektierung von meisten wasserwirtschaftlichen Anlagen verwendet werden. Die LƤnge der Niedrigwasserperioden unterhalb der Schwellenwerte der DurchflĆ¼sse wurde detailliert analysiert, welche DurchflĆ¼sse fĆ¼r die ausgewƤhlten Dauer anhand der Dauerkurve fĆ¼r die mittleren tƤglichen DurchflĆ¼sse definiert wurden. Ein neuer Ansatz wurde angewendet, der zusƤtzlich zur klassischen probabilistischen Analyse von minimalen jƤhrlichen und minimalen mittleren monatlichen DurchflĆ¼ssen auch die Analyse der LƤnge durchgehender Niedrigwasserperioden mit DurchflĆ¼ssen kleiner als DurchflĆ¼sse charakteristischer Dauer sowie ihre unterjƤhrige Verteilung und Vertretung beinhaltet. Die fĆ¼r die Berechnung niedriger WasserstƤnde verwendeten Angaben sind offizielle Angaben des kroatischen hydrometeorologischen Instituts (DHMZ) Zagreb und des serbischen hydrometeorologischen Instituts (RHMZ) Belgrad fĆ¼r die hydrologischen Stationen Županja und Sremska Mitrovica auf dem Fluss Sava und Radalj auf dem Fluss Drina

    Najnovija sveobuhvatna analiza malih voda na teritoriji Republike Srbije južno od Save i Dunava

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    Sveobuhvatna analiza malih voda, koje se prikazuju u ovom radu, preuzete su iz nove monografije ā€žProsečni proticaji i male vode na srednjim i malim slivovima Srbijeā€, čija je izrada u toku, a koju zajednički realizuju Institut za vodoprivredu ā€žJaroslav Černiā€œ i Republički hidrometeoroloÅ”ki zavod Srbije uz učeŔće Građevinskog fakulteta iz Beograda i Građevinsko-arhitektonskog fakulteta iz NiÅ”a. Bazni podaci koji su koriŔćeni su zvanični podaci Republičkog hidrometeoroloÅ”kog zavoda sa 82 profila hidroloÅ”kih stanica na srednjim i malim slivovima na teritoriji Srbije, južno od Save i Dunava. Pri tome su koriŔćene sve raspoložive vremenske serije srednjednevnih i minimalnih godiÅ”njih protoka. Periodi obrade su bili od početka rada određene hidroloÅ”ke stanice do zaključno sa 2018. godinom

    Umfassende Analyse niedriger WasserstƤnde in der weiteren Zusammenflussregion der FlĆ¼sse Drina und Sava

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    Ideja ovoga rada je da prikaže osnovne rezultate sprovedene sveobuhvatne analize malih voda Save i Drine u zoni uŔća Drine. U radu se prikazuju kvantitativne karakteristike malih voda koje se najčeŔće koriste kao podloga pri projektovanju većine vodoprivrednih i hidrotehničkih objekata. Posebno je detaljno analizirana dužina malovodnih perioda ispod repernih protoka - protoka određenih za izabrana trajanja sa krivih trajanja srednjih dnevnih protoka. Primenjen je novi pristup koji, pored klasične probabilističke analize minimalnih godiÅ”njih i minimalnih srednjih mesečnih protoka, obuhvata i analizu dužina neprekidnih malovodnih perioda sa protocima manjim od protoka karakterističih trajanja, njihovu unutargodiÅ”nju raspodelu i zastupljenost. Bazni podaci koji su koriŔćeni za proračun malih voda su zvanični podaci Državnog hidrometeoroloÅ”kog zavoda Hrvatske iz Zagreba (DHMZ) i Republičkog hidrometeoroloÅ”kog zavoda Srbije iz Beograda (RHMZ) na hidroloÅ”kim stanicama (HS) Županja i Sremska Mitrovica na reci Savi i Radalj na reci Drini.The idea of this paper is to present the main results of a comprehensive analysis of the Sava and Drina low water discharges in the area of the Drina river mouth. The paper presents the quantitative characteristics of low discharges that are generally used as a basis for designs of the majority of water management and hydrotechnical facilities. The particular focus is a detailed analysis of the length of low discharge periods below the initial discharges, which were determined for selected durations from the curves of average daily discharge durations. A new approach was applied which, in addition to the classic probabilistic analysis of minimum annual and minimum average monthly discharges, also includes the analysis of the length of continuous low discharge periods with discharges lower than the discharges of characteristic durations, their intra-annual distribution and representation. The basic data used for the calculation of low discharges are the official data of the Croatian Meteorological and Hydrological Service from Zagreb (DHMZ) and the Republic Hydrometeorological Institute of Serbia from Belgrade (RHMZ) at the hydrological stations (HS) Županja and Sremska Mitrovica on the Sava River and Radalj on the Drina River.Das Ziel dieses Beitrags ist es, die wichtigsten Ergebnisse einer umfassenden Analyse niedriger WasserstƤnde der FlĆ¼sse Drina und Sava in der Zusammenflusszone darzustellen. Es werden quantitative Eigenschaften niedriger WasserstƤnde dargestellt, die am hƤufigsten als Grundlage fĆ¼r die Projektierung von meisten wasserwirtschaftlichen Anlagen verwendet werden. Die LƤnge der Niedrigwasserperioden unterhalb der Schwellenwerte der DurchflĆ¼sse wurde detailliert analysiert, welche DurchflĆ¼sse fĆ¼r die ausgewƤhlten Dauer anhand der Dauerkurve fĆ¼r die mittleren tƤglichen DurchflĆ¼sse definiert wurden. Ein neuer Ansatz wurde angewendet, der zusƤtzlich zur klassischen probabilistischen Analyse von minimalen jƤhrlichen und minimalen mittleren monatlichen DurchflĆ¼ssen auch die Analyse der LƤnge durchgehender Niedrigwasserperioden mit DurchflĆ¼ssen kleiner als DurchflĆ¼sse charakteristischer Dauer sowie ihre unterjƤhrige Verteilung und Vertretung beinhaltet. Die fĆ¼r die Berechnung niedriger WasserstƤnde verwendeten Angaben sind offizielle Angaben des kroatischen hydrometeorologischen Instituts (DHMZ) Zagreb und des serbischen hydrometeorologischen Instituts (RHMZ) Belgrad fĆ¼r die hydrologischen Stationen Županja und Sremska Mitrovica auf dem Fluss Sava und Radalj auf dem Fluss Drina

    Sveobuhvatna analiza malih voda na Å”irem sektoru uŔća reke Drine u reku Savu

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    Ideja ovoga rada je da prikaže osnovne rezultate sprovedene sveobuhvatne analize malih voda Save i Drine u zoni uŔća Drine. U radu se prikazuju kvantitativne karakteristike malih voda koje se najčeŔće koriste kao podloga pri projektovanju većine vodoprivrednih i hidrotehničkih objekata. Posebno je detaljno analizirana dužina malovodnih perioda ispod repernih protoka - protoka određenih za izabrana trajanja sa krivih trajanja srednjih dnevnih protoka. Primenjen je novi pristup koji, pored klasične probabilističke analize minimalnih godiÅ”njih i minimalnih srednjih mesečnih protoka, obuhvata i analizu dužina neprekidnih malovodnih perioda sa protocima manjim od protoka karakterističih trajanja, njihovu unutargodiÅ”nju raspodelu i zastupljenost. Bazni podaci koji su koriŔćeni za proračun malih voda su zvanični podaci Državnog hidrometeoroloÅ”kog zavoda Hrvatske iz Zagreba (DHMZ) i Republičkog hidrometeoroloÅ”kog zavoda Srbije iz Beograda (RHMZ) na hidroloÅ”kim stanicama (HS) Županja i Sremska Mitrovica na reci Savi i Radalj na reci Drini

    Prostorni raspored osnovnih karakteristika malih voda na teritoriji Republike Srbije

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    Ideja ovoga rada je da prikaže prostorni raspored osnovnih karakteristika malih voda na teritoriji Republike Srbije kao podloga projektovanju većine vodoprivrednih i hidrotehničkih objekata. To se pre svega odnosi na prostorni prikaz modula oticaja minimalnih srednjih mesečnih protoka 95% obezbeđenosti i srednjih godiÅ”njih protoka verovatnoće pojave 10% i trajanja malovodnih perioda ispod protoka karakterističnih trajanja. Navedene karakteristike malih voda preuzete se iz buduće monografije ā€žProsečni protoci i male vode na srednjim i malim slivovima Srbijeā€, čija je izrada u toku.This paper presents the spatial distribution of basic characteristics of low flows on the territory of the Republic of Serbia as the basis for design of various water management systems and hydraulic engineering structures. Spatial representation of specific runoff for minimum annual mean monthly flows of 95% probability of exceedance, specific runoff for mean annual flows of 10% probability of non-exceedance, and duration of low flow below selected characteristic threshold values. These low flow characteristics are taken from the forthcoming monograph ā€œMean and low flows in small and medium watersheds in Serbiaā€, which is under preparation

    Male vode na malim i srednjim slivovima Srbije

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    U radu se prikazuju rezultati statističke analize izabranih parametara malih voda na malim i srednjim slivovima u Srbiji nastali tokom izrade nove monografije ā€žProsečni protoci i male vode na malim i srednjim slivovima Srbijeā€, koju zajednički realizuju Institut za vodoprivredu ā€žJaroslav Černiā€œ i Republički hidrometeoroloÅ”ki zavod Srbije uz učeŔće Građevinskog fakulteta iz Beograda i Građevinsko-arhitektonskog fakulteta iz NiÅ”a. Osnovna ideja je da se na odabranim srednjim i malim slivovima u Srbiji definiÅ”u osnovne kvantitativne karakteristike prosečnih protoka i malih voda. Bazni podaci koji su koriŔćeni su zvanični podaci Republičkog hidrometeoroloÅ”kog zavoda sa 132 profila hidroloÅ”kih stanica na srednjim i malim slivovima na teritoriji Srbije južno od Save i Dunava. Pri tome su koriŔćene sve raspoložive vremenske serije srednjednevnih i minimalnih godiÅ”njih protoka. Periodi obrade su bili od početka rada određene hidroloÅ”ke stanice do zaključno sa 2018. godinom. U ovom radu dat je grafički prikaz rezultata obrade osnovnih karakteristika malih voda i to: minimalnih srednjemesečnih protoka verovatnoće pojave 95%, kao i minimalnih godiÅ”njih protoka verovatnoće pojave 1%.The paper presents the results of the statistical analysis of selected low flow indicators in medium and small Serbian basins obtained withing the scope of a new monograph "Mean and low flows in medium and small basins of Serbia", which is being prepared jointly by the Water Institute "Jaroslav Cerni" and the Republic Hydrometeorological Service of Serbia, with the participation of the Faculty of Civil Engineering of Belgrade and the Faculty of Civil Engineering and Architecture of Nis. The basic idea is to provide principal quantitative characteristics of mean and low flows in selected medium and small basins in Serbia. The data used in the analysis are the official data provided by the Republic Hydrometeorological Service at 132 stream gauges in medium and small basins in the territory of Serbia, south of the Sava and Danube Rivers. Thereby, all the available time series of mean daily and annual minimum flows were used. The processing periods are from when the certain gauging station started operating to the end of 2018. This paper presents only the results of the basic low flow indicators, such as the minimum mean monthly flows of the 95% probability of exceedance, as well as the annual minimum flows of the 1% probability of non-exceedance

    Maksimalna trajanja malovodnih perioda na malim i srednjim slivovima Srbije

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    Maksimalna trajanja malovodnih perioda, koje se prikazuju u ovom radu, preuzeta su iz nove monografije ā€žProsečni protoci i male vode na srednjim i malim slivovima Srbijeā€, čija je izrada u toku, a koju zajednički realizuju Institut za vodoprivredu ā€žJaroslav Černiā€œ i Republički hidrometeoroloÅ”ki zavod Srbije uz učeŔće Građevinskog fakulteta iz Beograda i Građevinsko-arhitektonskog fakulteta iz NiÅ”a. Bazni podaci koji su koriŔćeni su zvanični podaci Republičkog hidrometeoroloÅ”kog zavoda sa 82 profila hidroloÅ”kih stanica na srednjim i malim slivovima na teritoriji Srbije južno od Save i Dunava. Pri tome su koriŔćene sve raspoložive vremenske serije srednjednevnih i minimalnih godiÅ”njih protoka. Periodi obrade su bili od početka rada određene hidroloÅ”ke stanice do zaključno sa 2018. godinom. U ovom radu daje se samo prikaz rezultata obrada jedne od osnovnih karakteristika malovodnih perioda, a to su maksimalna trajanja malovodnih perioda u funkciji repernih protoka i verovatnoće pojave, kao i njihova unutargodiÅ”nja zastupljenost. Prikazani su osrednjeni rezultati za razmatrane slivove i za celu teritoriju Republike Srbije.Maximum low flow durations, presented in this paper, are taken from the new book on ā€œMean and low flows in small and medium watersheds in Serbiaā€, which is jointly under development by the ā€œJaroslav Černiā€ Institute for Water Resources Management and Republic Hydrometeorological Service of Serbia with participation of the University of Belgrade ā€“ Faculty of Civil Engineering and University of NiÅ” ā€“ Faculty of Civil Engineering and Architecture. Basic data from 82 hydrological stations in small and medium-sized watersheds within Serbia south of the Danube and the Sava rivers are provided by Republic Hydrometeorological Service. All available data on daily and absolute annual minimum flows from the start of operation and 2018 are used in the analysis. This paper presents a part of the results relating maximum low flow durations to characteristic thresholds and probability of occurrence, as well as their seasonal distribution. The results are averaged over individual watersheds and for the territory of Serbia

    Sveobuhvatna analiza malih voda na srednjim i malim slivovima Republike Srbije južno od Save i Dunava

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    Ideja ovoga rada je da prikaže osnovne rezultate sprovedene sveobuhvatne analize malih voda na teritoriji Republike Srbije, južno od Save i Dunava, preuzete iz buduće monografije ā€žProseĉni protoci i male vode na srednjim i malim slivovima Srbijeā€, ĉija je izrada u toku. Ovu monografiju zajedno realizuju Institut za vodoprivredu ā€žJaroslav Ĉerniā€ i Republiĉki hidrometeoroloÅ”ki zavod Srbije, uz uĉeŔće GraĊevinskog fakulteta iz Beograda i GraĊevinsko-arhitektonskog fakulteta iz NiÅ”a. U radu su prikazane kvantitativne karakteristike malih voda, koje se najĉeŔće koriste kao podloga u projektovanju većine vodoprivrednih i hidrotehniĉkih objekata, a pre svega za ocenu ā€žminimalnog održivog protokaā€, koji se po važećem Zakonu o vodama mora neprikosnoveno ostaviti u reci za potrebe održavanja biocenoze i zadovoljenje potreba nizvodnih korisnika. U konkretnom sluĉaju prikazuju se najbitniji rezultati ocene viÅ”egodiÅ”njih proseka srednje godiÅ”njeg protoka, krivih trajanja srednje dnevnih protoka i obezbeĊenosti minimalnih srednje meseĉnih protoka. Posebno su detaljno analizirani kvantitativni pokazatelji dužina malovodnih perioda ispod protoka sa odabranim trajanjem, odreĊenih sa krivih trajanja dnevnih protoka. Primenjen je novi prilaz koji obuhvata, pored klasiĉne probabilistiĉke analize minimalnih godiÅ”njih i minimalnih srednjih meseĉnih protoka, i sveobuhvatnu analizu neprekidnih trajanja malih voda ispod protoka karakteristiĉnih trajanja, njihove unutargodiÅ”nje raspodele i procentualne zastupljenosti. Bazni podaci koriŔćeni pri izradi ove analize, zvaniĉni su podaci Republiĉkog hidrometeoroloÅ”kog zavoda sa 82 profila hidroloÅ”kih stanica na srednjim i malim slivovima na teritoriji Srbije, južno od Save i Dunava. Pri tome su koriŔćene sve raspoložive vremenske serije srednjednevnih i minimalnih godiÅ”njih protoka. Periodi obrade su bili od poĉetka rada odreĊene hidroloÅ”ke stanice, do zakljuĉno sa 2018. godinom.This paper presents main results of a comprehensive analysis of low flows on the territory of the Republic of Serbia, south of the Sava and the Danube rivers. The results are a part of the forthcoming book on ā€œMean and low flows in small and medium watersheds in Serbiaā€, which is under development. The book is being produced jointly by the ā€œJaroslav Černiā€ Institute for Water Resources Management and Republic HydrometeoĀ¬roĀ¬logical Service of Serbia with participation of the University of Belgrade ā€“ Faculty of Civil Engineering and University of NiÅ” ā€“ Faculty of Civil Engineering and Architecture. The analysis deals with the quantitative characteristics of low flows that are commonly used for design in various water management and hydraulic engineering projects, but are also a starting point in estimating the ā€œminimum sustainable flowā€, which is, according to the current Water Act, the minimum flow in the rivers needed for maintaining the biocenosis and for satisfying the demands of downstream users. The main outcomes of the comprehensive low flow analysis presented in this paper are the long-term mean flow, duration of daily flows and probability of exceedance of minimum mean monthly flows. Additionally, special attention is given to quantitative indices of length of intervals with flow below the specified thresholds, taken from the flow duration curve. A new approach applied includes, beside a classical statistical analysis of annual minima and mean monthly minima, a comprehensive analysis of continuous duration of low flows below the specified thresholds and their seasonal distribution. Basic data from 82 hydrological stations in small and medium-sized watersheds within Serbia south of the Danube and the Sava rivers are provided by Republic Hydromete-orological Service. All available data on daily and absolute annual minimum flows from the start of operation and 2018 are used in the analysis
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