APPLICATION OF A DEVELOPMENT SYSTEM WITH A DIAGONAL ARRANGEMENT OF PRODUCING STOPES IN THE POTASH ORE EXTRACTION

2021 ◽  
Vol 4 (1) ◽  
pp. 444-452
Author(s):  
P. Y. Nyukalo ◽  
◽  
O. V. Ivanov

The improvement of the room mining system for the extraction of potash salts is cur-rently very relevant, as it allows solving a number of tasks – from improving the safety of min-ing operations to improving the quality of the extracted ore. The use of producing stopes ori-ented in the direction of the fold axes of the working seams allows reducing the dilution of ore by minimizing the cases of pruning of the rock salt overlying seams, as well as increase the productivity of combine systems by increasing the length of the producing stopes and a smooth-er junction of the stopes and the extraction drift. The article considers the application of an im-proved development system on the 4th western block of the 4th-5th north-western panel of the BKPRU-4 mine take of Uralkali PJSC.

2018 ◽  
Vol 7 (2.7) ◽  
pp. 37 ◽  
Author(s):  
S Sridevi ◽  
M Bindu Prathyusha ◽  
P V.S.J.Krishna Teja

India being a horticulture nation yet utilizing conventional methods in agriculture. Right now suggestions for farmers depend upon the coordination among farmers and distinctive specialists. Proposed suggestions generally given to them by using past farming exercises with help of their knowledge and experience to give advanced outcomes. The proposed idea is the utilization of mining techniques in agriculture to give best suggestions to farmers for crops, crop rotation, prices of crops, quality of seeds and recognizable proofs of needed fertilizer. The system can be utilized by farmers as an application both on web and mobile. It is an advanced cultivating method that utilizes  investigate information of soil qualities, soil types, crop yield information gathering and recommends the farmers to quality harvest in light of their site specific parameters. This diminishes the wrong decision on a harvest and increase in efficiency. With the progress of this rural modernization, agriculture site was progressively turning into a noteworthy instrument for farmers getting data about existence and generation. Step by step instructions to make the examination of the requirements of farmers viable to help them to discover the data assets of the Internet they were occupied with had turned into a dire and vital issue. It was vital hugeness in enhancing the structure and substance of agribusiness site, which could give better administrations to farmers and also enhance the level of modernization of horticultural generation.


2021 ◽  
Vol 8 (1-2) ◽  
pp. 17-25
Author(s):  
Anita Ptiček Siročić ◽  
Sanja Kovač ◽  
Davor Stanko ◽  
Iva Pejak

Radon (222Ra) is a colourless and odourless natural radioactive element in gaseous state. The concentration of radon in the air is usually low, but it can be very high inside of a living space, because of its possibility to penetrate from a foundation soil over a basement into a building itself. People are daily exposed to a certain concentration of radon that is found in soil, water, air and food. This paper shows a correlation analysis of environmental parameters by using the model of multiple regressions. It defines certain statistical relations between environmental parameters such as temperature, humidity, and atmospheric pressure with measured values of radon concentrations. Measurements were carried out at several locations in various residential buildings in north-western Croatia. The results indicated that individual environmental parameters and radon concentration at individual locations were connected. For example, at one location the concentration of radon was decreasing if atmospheric pressure was increasing. Measurements at another location indicated that the concentration of radon was increasing if air humidity was increasing. Due to large number of different parameters affecting the concentration of radon in residential buildings, a satisfactory statistical model to predict the concentration of radon with environmental parameters is not easy to achieve since it was observed variability of radon concentrations with environmental parameters within different local sites. It is necessary to consider a longer period to determine with certainty a mathematical model that would give the most accurate prediction of radon concentration dependence on environmental parameters which can affect human health and quality of life.


2016 ◽  
Vol 5 (4) ◽  
pp. 173-181
Author(s):  
Daud Aruan ◽  
Pujiono Wahyu Purnomo ◽  
Churun A’in

ABSTRAKWaduk Diponegoro merupakan bagian dari sistem pembangunan Universitas Diponegoro. Pembangunan Waduk Diponegoro bertujuan sebagai pengendali banjir, sediaan air tanah dan taman rekreasi di kawasan Tembalang. Sungai Krengseng merupakan salah satu sungai yang bermuara di Waduk Diponegoro. Kualitas air yang berada di Sungai Krengseng berpengaruh terhadap kualitas air di Waduk Diponegoro. Oleh karena itu, perlu diadakannya analisi tentang beban pencemar, kualitas air dan status pencemaran di Sungai Krengseng yang akan bermuara ke Waduk Diponegoro. Tujuan penelitian ini menghitung beban pencemaran (TSS, nitrat, fosfat dan BOD), serta mengkaji status pencemaran berdasarkan metode Indeks Kualitas Air. Materi yang digunakan pada penelitian ini adalah air sampel yang diambil dari hulu, tengah dan hilir Sungai Krengseng serta inlet Waduk Diponegoro. Metode penelitian ini menggunakan metode survei. Hasil yang diperoleh berdasarkan analisis beban pencemaran dari sungai Krengseng dan Waduk Diponegoro adalah TSS 1.464,53 ton/tahun, nitrat 36,88 ton/tahun, fosfat 15,13 ton/tahun dan BOD 385 ton/tahun. Status pencemaran Sungai Krengseng dan Waduk Diponegoro adalah bagian hulu masuk ke dalam kelas tercemar ringan dan pada bagian tengah, hilir, serta waduk masuk ke dalam kelas tercemar sedang. Kata kunci:          Beban Pencemaran, Indeks Kualitas Air, Status Pencemaran, Sungai Krengseng, Waduk Diponegoro  ABSTRACT Diponegoro reservoir is a part of Development system of Diponegoro University.  Development of Diponegoro reservoir function are flood control, groundwater supplies, and amusement park on Tembalang area. Krengseng River is one of river that flow to Diponegoro reservoir. The quality of water on the Krengseng river has effect to the quality of water on Diponegoro reservoir. Therefore, there is an analysis about waters quality of pollution load, waters quality, and pollution status on Krengseng River that will flow on Diponegoro reservoir. The purpose of this study is to calculate pollution load ( TSS, nitral, fosfat, and BOD) and also study the pollution load based on method of waters quality index. The material used in the study of water sample are taken from upstream, middle, downstream of Krengseng river and Diponegoro reservoir lipped. This method used method survey. The result obtained by analysis of Pollution load from Krengseng river and Diponegoro reservoir are  TSS 1.464,53 tons/year, nitrat 36,88 tons/year, fosfat 15,13 tons/yearand BOD 385 tons/year. Pollution status of Krengseng River and Diponegoro reservoir are parts of upstream into low class pollution, middle downstream and reservoir into middle class pollution.  Keywords :            Pollution load, waters quality index, pollution status, Krengseng river, Diponegoro reservoir. 


Public Health ◽  
2022 ◽  
Vol 1 (4) ◽  
pp. 34-48
Author(s):  
D. O. Ivanov ◽  
V. K. Yuryev ◽  
Yu. V. Petrenko ◽  
K. E. Moiseeva ◽  
I. I. Mogileva ◽  
...  

In order to assess the mortality and lethality rates of newborns in obstetric organizations of the North-Western Federal District in 2013–2019, a comparative analysis of official statistics data was carried out. It was found that in the North-Western Federal District in the period from 2013 to 2019, there was an almost annual decrease in newborn mortality rates. The overall decrease in mortality in maternity care organizations of the Federal District (from 2,5% to 1,9%) was mainly due to a decrease in mortality in obstetric hospitals of the first and second levels (respectively from 3,2% to 1,2% and from 1,7% to 0,7%), while most children died in perinatal centers, where the mortality rate has not changed in recent years (2013 – 4,1%; 2019 – 4,0%). The study showed a decrease in mortality rates in the subjects of the Russian Federation that are part of the federal district, except for the city of St. Petersburg. The average hospital lethality rate of newborns in maternity care organizations of the North-Western Federal District during 2013–2019 was in the range of 1,9%–2,0%, did not change significantly and corresponded to the national average. However, the level of hospital lethality significantly differed in individual subjects of the district – in more than half of them, the level of hospital lethality exceeded the average, while in others it was significantly lower. Thus, the decrease in the mortality and lethality rates of newborns in maternity care organizations indicates an increase in the quality of medical care for children in the North-Western Federal District. dicates an increase in the quality of medical care for children in the North-Western Federal District. 


1992 ◽  
Vol 32 (3) ◽  
pp. 409 ◽  
Author(s):  
SR Sykes ◽  
JV Possingham

The effect of caging trees to exclude insect visitors on the fruit density, seediness, and quality of Imperial mandarin in north-western Victoria was investigated during 1990-91.The major effect of caging was a reduction in fruit seediness, with open trees having 5-16% of fruit seedless and caged trees 80-95%. The number of seeds per fruit ranged from 0-18 and 0-5 for open and caged trees, respectively. Caging trees had no effect on mean fruit density, mean fruit weight, fruit juiciness, soluble solids and percentage citric acid. These results provided further evidence for parthenocarpic fruit development by Imperial mandarin.


Author(s):  
James H. Hill

System Execution Modeling (SEM) tools enable distributed system testers to validate Quality-of-Service (QoS) properties, such as end-to-end response time, throughput, and scalability, during early phases of the software lifecycle. Analytical capabilities of QoS properties, however, are traditionally bounded by a SEM tool’s capabilities. This chapter discusses how to mine system execution traces, which are a collection of log messages describing events and states of a distributed system throughout its execution lifetime, generated by distributed systems so that the validation of QoS properties is not dependent on a SEM tool’s capabilities. The author uses a real-life case study to illustrate how data mining system execution traces can assist in discovering potential performance bottlenecks using system execution traces.


Author(s):  
Dragoș Dărăbăneanu ◽  
Iulian Dincă

Abstract The main objective of this study is geared toward how the public understands the nature and the environment, and relates to them. The research universe is represented by the inhabitants of the plain step in the northern half of Crisana Province (north-western Romania). It started from the idea that social representations generate attitudinal and behavioral patterns and the way in which people interact with the environment and nature has a significant influence on quality of life and social development. Therefore, the social representations about the environment and nature have direct effects on our future and can be oriented towards the active participation to the efforts to protect the environment and the nature in general. There were 671 residents of 34 villages questioned and their answers have set a certain socio-geographical pattern on the specifics of life environment belonging to plain. The life environment was perceived by us as a way of reporting to the nature and the environment. The rural respondents from the plain come up with the most common answers, even identical in content, drawing the nature and the environment as ambience, as the space around them.


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