scholarly journals ECOLOGICAL AND TECHNOLOGICAL REGULARITIES OF SALT BRINES FORMATIONS OF DOMBROVSKY QUARRY

Author(s):  
Y. Malkova ◽  
Y. Yakovlev ◽  
V. Dolin

The Dombrovsky quarry, which has been in operation since 1967, is the only one in the world where potash ore has been mined by open-pit method. The article considers the body formation mechanism of water-salt brines in the Dombrovsky quarry and gives a brief overview of the problems due to long-term development of the Kalush-Golynsky potassium salts deposit and waste accumulation in the area of hydraulic geofiltration. Such problems include flooding of the Dombrovsky salt quarry, erosion of salt dumps by precipitation, tailings overflows, pollution of the Quaternary supersalt aquifer and significant water quality deterioration danger in urban water intake, development of salt karst and subsidence of the earth's surface, destruction of engineering structures, residential buildings, etc. Analytical data of water inflows dynamics into the quarry and the increase of the drainage area of the quarry riparian part was analyzed, accompanied by drainage of the circular drainage trench – separation of groundwater level from the bed, the karst formation development on the periphery of the quarry (up to 250–350 m and more), anomalous increase in clay-dust fractions in the quarry wastewater after the flooding 2008 with a simultaneous increase in water inflows. According to the research, we can make a conclusion about the unloading of liquid body filling the quarry in the thickness of the pebble supersalt aquifer, filling karst cavities, erosion of the quarry, increasing the volume of the quarry bowl and the size of the groundwater drainage area of alluvial gravel-sand deposits of Sivka and Lymnutsya. Based on the obtained results, a conclusion was made regarding the threat of the emergency situation development and the deterioration of life safety in areas with disturbed ecological parameters of the geological environment. There is a need for artificial adjustment of the environmental forecast ecological parameters according to monitoring observations

2021 ◽  
Author(s):  
Bogusław Adam Andres ◽  
Krzysztof J. Krajewski ◽  
Izabela Betlej

Abstract The paper presents the results of surveys on the diversity of wood-destroying fungi in buildings and wooden engineering structures outdoors in Poland. The respondents reported a total of 48 species and genus of wood-degrading Basidiomycetes. The greatest species diversity of wood-degrading fungi was found on open-air engineering structures (33 species), the second location in terms of biodiversity was unused residential buildings (30 species), the lowest biodiversity was found in the used residential buildings (21 species).The most common fungi in the buildings were Serpula lacrymans (24.8%), Coniophora puteana (14.1%) and Fibroporia vaillantii (13.8%). The prevalence of S. lacrymans and C. puteana in buildings in Poland is similar to the European average. The occurrence of indoor polypores group (Amyloporia sinuosa, Fibroporia vaillantii, Neoantrodia serialis) in Poland is twice as high as the European average. Donkioporia expansa, which is numerous in buildings in Western Europe, is sporadically recorded in Poland (0.1%).


2021 ◽  
Author(s):  
Christopher L. K. Wang

As sleep is unconscious, the traditional definition of thermal comfort with conscious judgment does not apply. In this thesis sleep thermal comfort is defined as the thermal condition which enables sleep to most efficiently rejuvenate the body and mind. A comfort model was developed to stimulate the respective thermal environment required to achieve the desired body thermal conditions and a new infrared sphere method was developed to measure mean radiant temperature. Existing heating conditions according to building code conditions during sleeping hours was calculated to likely overheat a sleeping person and allowed energy saving potential by reducing nighttime heating set points. Experimenting with existing radiantly and forced air heated residential buildings, it was confirmed that thermal environment was too hot for comfortable sleep and that the infrared sphere method shows promise. With the site data, potential energy savings were calculated and around 10% of energy consumption reduction may be achieved during peak heating.


Author(s):  
Alexandra A. Islyamova ◽  
◽  
Valery S. Khoroshilov ◽  

The article discusses the possibilities of applying modeling of the stress-strain state of slopes to predict landslide hazard, which is very important for the successful implementation of all subsequent stages of design, construction and operation of engineering structures. The article considers the exist-ing approaches and methods used in the process of solving the problem, and determines the study as the type of mathematical modeling of the stress-strain state of a landslide body by the finite element method. It is shown that the selection of specific mathematical expressions for all subsequent calcula-tions is carried out depending on the specific type of landslide. The mechanisms of deformation and destruction of the slope under the action of gravitational forces are shown using the data of geodetic observations and engineering-geological surveys. As a result of the studies performed, calculations were made on several models illustrating the behavior of the soil massif of a landslide-prone slope. Stress patterns were obtained for a simple slope with a steepness of 35°, which coincide with the pre-viously published data of the physical experiment for the real open pit slope.


2020 ◽  
Vol 30 (11) ◽  
pp. 336-339
Author(s):  
Lucy Godfrey

The use of transfused blood, be it from an allogenic (donor) or autologous (same patient) source, is not a new treatment and in fact has been experimented with since the mid 1800s. The role of cell salvage and re-infusion of a patient’s own blood, however, has only begun to gain real popularity in the last 20 years, after the undertaking of several large scale meta-analyses which have shown that not only is autologous transfusion no less efficacious when compared to allogenic transfusion, but also potentially safer for a number of reasons. Autologous transfusion is also more cost effective overall and potentially quicker to initiate in an emergency situation. Despite the body of evidence to support the use of salvaged blood for transfusion, hesitation around its use still persists, with staff apprehension around set up of cell salvage equipment and general underestimation of intraoperative blood loss being key factors in its underuse.


Author(s):  
Yu.F. Golubev ◽  
V.V. Koryanov ◽  
E.V. Melkumova

The paper proposes a method of rocking the body of a six-legged robot, which provides a flipping of the body and the return of the robot to the operating position. It is shown that the autonomous rescue of the apparatus from an emergency position “upside down” is possible with the help of cyclic movement of the legs, if the body has an upper shell in the form of a truncated cylinder. The legs on the pre-chosen edge of the body through which the flip should occur, are passive, and straightened along the body so that they do not interfere with the flip. The legs on the opposite edge are active; they perform synchronous movement in a plane perpendicular to the longitudinal axis of the body, with a fixed angle in the knee. An analytical study and computer simulation of the full dynamics of the robot were fulfilled which confirmed the effectiveness of the developed technique for restore the functional capability of the robot. Computer simulation was carried out by means of the Universal Mechanism software package. The results of numerical experiments are presented.


Formulation of the problem. According long- term data analyses under the slides zone in Ukrainian part of the Azov sea sustainable processes had been marked. Landslides are most active in autumn and spring. The activation of landslides occurs under the influence of man-made and natural factors. The most significant factor is coastal abrasion. Review of previous publications. It was established that the air temperature and precipitation, the temperature and salinity of sea waters and the hydrometeorological regime of the coastal zone and the water balance of the Black and Azov seas as well depends on climatic changes. The rising of the sea level has intensified over the past decades. These changes found a response in the coastal zone that reacted to them and acquired corresponding trends. Purpose is to determine the reasons for the formation of dynamically unstable sectors and the possibility of protecting the shores on the Ukrainian coast in the Azov Sea, the subject is landslide processes, as the result of the abrasion of the shores, the object is the variability of the natural and anthropogenic conditions of the Ukrainian coast of the Azov Sea in the area of interaction between the sea and land. Methods. Analyses of images space and temporal dynamic of Earth remote sensing satellites by DigitalGlobe, USGS LandLook and Sentinel were used and also retrospective long term of hydrometeorological data and standard statistical methods. Results. The places (areas) with pronounced coastal dynamic processes on the Ukrainian coast of the Azov Sea were identified, that require special attention: two in the Kherson region, five in the Zaporozhye region and four in Donetsk. In the coastal zone of the Azov Sea the rate of abrasion from 1 to 4 m per year (in exceptional cases up to 15 m per year) was marked. In a period of significant level rises, the flooding of ports, berths, the destruction of hydraulic engineering structures, storage facilities, and residential buildings is possible. Also, during the period of the significant decreasing of the sea level, the already limited depth of the approach channels decreases again, that disrupts the operation of the fleet. Conclusions. Investigations of the current state of the Ukrainian coastal zone of the Azov Sea, that is significant importance for the sustainable the economy development, the recreational region’s potential and the social level of the population. It has been established that in the eastern regions of the Azov coast of Ukraine there are a deficit of sediments and a high degree of variability of the abrasion form of the coastal-sea relief is noted, and an excess of sediments are formed in the western and northwestern regions.


2020 ◽  
Vol 14 (2) ◽  
pp. 227-252
Author(s):  
Fajar rahmat Aziz

It is the Regional Disaster Management Agency’s (BPBD) onus of South Sulawesi to assist the Governor in organizing regional government administration within the scope of regional disaster management. Among BPBD’s duties in South Sulawesi in handling corpses of natural disaster are: intact Muslim corpses are handled normally, in which the bodies were washed, shrouded, sanctified and buried by following the procedures that have been determined by the Shari'ah. Afterwards, decaying and unrecognizable Muslim corpses were directly shrouded, sanctified then buried. Whilst the large numbers corpses that mixed between Muslims and non-Muslims, were immediately buried and sanctified by religious leaders from each of the existing religious representatives. Hereinafter, the constraints faced by the BPBD of South Sulawesi in handling the corpses of natural disasters include: limited equipment, difficulty in reaching the location and the identification process which requires a long time. The Islamic law view regarding the handling of the natural disasters corpses is that basically, in normal conditions, the corpses must be washed, shrouded, sanctified and buried according to the procedures that have been determined by Islamic law. When a disaster occurs, the handling of the body is still carried out in accordance with the provisions of the Shari'ah but in an emergency situation.


2018 ◽  
Vol 7 (2.25) ◽  
pp. 14 ◽  
Author(s):  
A Josephin Arockia Dhivya ◽  
R J. Hemalatha ◽  
T R.Thamizhvani ◽  
Josline Elsa Joseph ◽  
Bincy Babu ◽  
...  

Many thousands of humans are dying day to day due to the delay of ambulances reaching the accident spot at right time.So this prototype explains clearly about the emergent situation of a drone reaching the accident scenario with various sensors.The usage of this technology gradually decreases the fatal cases.It is used to save time and helps in patient’s survival.The technology works such like different types of sensors are fitted to the health drone.When a phone call is given to a prescribed given number,the operator thereby tracks the location and the navigation of the place is tracked using global positioning system.The medical quadcopter or drone arrives at the critical situation and various modes of parameters from the body are measured.This prototype gives the information of the patient to both the hospital sources and the nurses present in the normal ambulance.This flying medical drone reach the spot before the normal ambulance arrives the scene.It also measures the real time actual situation of the patient and it helps in saving a life of a patient.The information regarding the patients health parameters will be sent to concerned hospital staffs and to the respective staffs coming in the ambulance. This helps the paramedics and the doctors to know about the patient’s condition before arriving the spot.This medical drone acts as a tool kit which flies to various emergency Situation. ambulance and the hospital team so that they will be ready to serve to the needs of the patients.The proposed prototype model is used as a support the persons who need immediate attention. 


Author(s):  
Miziev I.A. ◽  
Akhkubekov R.A. ◽  
Ivanova Z.O.

Aim. to study the dynamics of clinical and laboratory parameters of endogenous intoxication and prooxidant and antioxidant blood systems in patients with abdominal sepsis. Material and methods. 57 patients with abdominal sepsis were examined. The inclusion criteria for the study were the presence of a clinic of abdominal sepsis and changes in the parameters of the prooxidant and antioxidant blood systems and blood cytokines. Results. In patients with abdominal sepsis, signs of oxidative damage to lipids and proteins were found, as evidenced by a significant increase in the MDA level up to 5.8 μmol / L, catalase content in erythrocytes 94 mmol / min*gHb, spontaneous NBT test activity up to 95% and a decrease in ceruloplasmin in the blood up to 194 mg / l. With abdominal sepsis, a significant increase in the level of TNF-82.7 pkg/ml, IL-10 to 167.6 pkg/ml, IL-6 to the maximum values in this study up to 286.4 pg/ml and IL to 34 pkg was /ml observed. Conclusion. It was found that in patients with abdominal sepsis there is an increase in lipid peroxidation indicators - malondialdehyde in the blood plasma, the activity of the spontaneous NBT test, depending on the phase of the disease and the presence of complicated forms. Changes in the antioxidant defense of the body in abdominal sepsis are manifested by inhibition of the plasma antioxidant ceruloplasmin with a simultaneous increase in catalase in erythrocytes, depending on the phase of the disease and also on the presence of complicated forms of the disease. As a result of this study, increased production of a complex of both pro-inflammatory and anti-inflammatory cytokines with their rapid and excessive entry into the peripheral blood was revealed.


2010 ◽  
Vol 20 (7) ◽  
pp. 979-1001 ◽  
Author(s):  
Engīn Gülal ◽  
Hediye Erdoğan ◽  
Nedim Onur Aykut ◽  
Halil Erkaya

Modal characteristics of engineering structures can be determined via dynamic observation in scope of system identification and they can be used for a variety of purposes, including model updates, damage assessment, active control, and original design re-evaluation. This paper presents the use of an autoregressive with eXogenous inputs (ARX) model to assess the impact of horizontal displacements in the Oymapinar Dam in Antalya province, Turkey, during the first reservoir filling stage. Besides, displacements in the dam after the filling stage are predicted. There is a high linear correlation between the displacements of the body of the dam and the first filling phase of the reservoir. An ARX model of the dam without damage is created using displacements predicted from a 3D finite element model of the dam and the changes in water level. The displacements in the dam observed in the first filling phase are recalculated using water level changes for damaged or undamaged cases, observed displacements, and the parameters of the undamaged ARX model. The standard deviations of the residuals calculated from the ARX model of the undamaged dam are statistically compared for different confidence intervals using the standard deviations of residuals of the ARX model of the undamaged or damaged dam’s observations, and it was determined that there was no dangerous damage to the dam. In addition, the observed displacement values were extended in different scales and standard deviations of these displacements are calculated using the ARX of the undamaged dam model. These standard deviations and the one calculated from undamaged model of the dam were compared, and it was determined that 55 mm of displacement could be dangerous for the dam. Finally, the displacements in the dam for different water levels in the operation phase (after filling) were predicted using the ARX model and were found to be consistent with the measured displacement values.


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