scholarly journals Water Carrying Ships in the Adriatic Region - Zadar Region Analysis

2019 ◽  
Vol 57 (1) ◽  
pp. 89-95
Author(s):  
Luka Grbić ◽  
Mate Barić ◽  
Karlo Cimera ◽  
Dragan Čurin
Keyword(s):  
Water Distribution ◽  
Research Area ◽  
Region Analysis ◽  
Critical Situation ◽  
Adriatic Region ◽  
Water Piping ◽  
Critical Situations

In this paper the main objective was to analyse water distribution market on Adriatic islands, mainly those without any water piping infrastructure. Those islands are mostly supplied by water carrying ships. The used methodology consisted of analysing, in last four years, the number of water deliveries and amount of precipitation in the research area. The analysis showed that the most critical situation occurs from June to September, when the number of residents grows and the amount of precipitation lowers. In order to avoid critical situations, like water reductions and draughts, important factors are pointed out which could lead to such situations and with proper precautions action can be avoided.

Research on Types of Oil Reservoirs and Character of Oil-Water Distribution in Heidimiao Layer

2013 ◽  
Vol 772 ◽  
pp. 789-794
Author(s):  
Gui You Lv
Keyword(s):  
Water Distribution ◽  
Oil And Gas ◽  
Dominant Role ◽  
Three Dimensional ◽  
Physical Property ◽  
Research Area ◽  
Oil Reservoir ◽  
Well Testing ◽  
Testing Data ◽  
Oil Water

This paper takes Yingtai area which is located in the south of Qijia-Gulong sag and part of central sag area in the north of the Songliao Basin as the research area. Then combining all information of core, logging, three-dimensional seism and well testing data, it studies the reservoir type and oil-water distribution characteristics of Heidimiao by analyzing the comparison charts of sandstone, profile map of reservoir, T07 structure diagram, well testing data, stratum thickness, sandstone thickness, ratio of sandstone thickness to stratum thickness, porosity values, permeability contour maps. The reservoir lithology of Heidimiao oil layer is siltstone-oriented with poor physical property. The main controlling factor of oil-water distribution is the lithology, followed by the structure. Heidimiao oil layer mainly includes three types, lithological oil reservoir, lithological - structural oil reservoir and structural oil reservoir, among which lithological reservoir plays a dominant role. Its oil-water distribution is characterized by the pattern of upper-water and bottom-oil; when the fault acts as the pathway for the longitudinal migration of oil and gas, the pattern changes to the upper-oil and bottom-water. This research could provide reliable geological basis for the research of old well re-examination, favorable area evaluation and horizontal well drilling design.

scholarly journals Trihalomethanes in Water Supply System and Water Distribution Networks

2021 ◽  
Vol 18 (17) ◽  
pp. 9066
Author(s):  
Sornsiri Sriboonnak ◽  
Phacharapol Induvesa ◽  
Suraphong Wattanachira ◽  
Pharkphum Rakruam ◽  
Adisak Siyasukh ◽  
...  
Keyword(s):  
Water Supply ◽  
Organic Compounds ◽  
Distribution Systems ◽  
Water Distribution ◽  
Distribution Networks ◽  
Research Area ◽  
Seasonal Effects ◽  
Water Supply Systems ◽  
Treated Water ◽  
Guideline Values

The formation of trihalomethanes (THMs) in natural and treated water from water supply systems is an urgent research area due to the carcinogenic risk they pose. Seasonal effects and pH have captured interest as potential factors affecting THM formation in the water supply and distribution systems. We investigated THM occurrence in the water supply chain, including raw and treated water from water treatment plants (coagulation, sedimentation, sand filtration, ClO2-disinfection processes, and distribution pipelines) in the Chiang Mai municipality, particularly the educational institute area. The effects of two seasons, rainy (September–November 2019) and dry (December 2019–February 2020), acted as surrogates for the water quality profile and THM occurrence. The results showed that humic acid was the main aromatic and organic compound in all the water samples. In the raw water sample, we found a correlation between surrogate organic compounds, including SUVA and dissolved organic carbon (DOC) (R2 = 0.9878). Four species of THMs were detected, including chloroform, bromodichloromethane, dibromochloromethane, and bromoform. Chloroform was the dominant species among the THMs. The highest concentration of total THMs was 189.52 μg/L. The concentration of THMs tended to increase after chlorination when chlorine dioxide and organic compounds reacted in water. The effect of pH on the formation of TTHMs was also indicated during the study. TTHM concentrations trended lower with a pH ≤ 7 than with a pH ≥ 8 during the sampling periods. Finally, in terms of health concerns, the concentration of TTHMs was considered safe for consumption because it was below the standard (<1.0) of WHO’s Guideline Values (GVs).

scholarly journals Students’ experience of critical situations associated with studying: philosophical-psychological analysis

2020 ◽  
pp. 89-99
Author(s):  
Ekaterina Evgen'evna Zvonova
Keyword(s):  
Cognitive Activity ◽  
Original Method ◽  
Humanistic Psychology ◽  
Semantic Correlation ◽  
Critical Situation ◽  
Existential Crisis ◽  
Psychological Analysis ◽  
Self Transcendence ◽  
Existential Perspective ◽  
Critical Situations

The object of this research is the critical situation that has emerged and develops due to studying; the subject is its experiencing by the students. The article provides related to romanticization of cognition and suggesting self-transcendence version of establishing semantic correlation between consciousness and being of a student in the indicated critical situation for the purpose of increasing the meaningfulness of life. Its realization would allow achieving the synthesis of intelligence and affect in education, unity of education and upbringing due to acquisition of ethical meaning. Research methodology is based on the achievements of logotherapy, namely the principle of indererminism of human existence and humanistic psychology. The scientific novelty consists in the analysis of critical situations related to studying, which have not been previously viewed from the existential perspective, in the context of the theme of existential crisis. The article also proposes an original method for overcoming critical situations through romanticization of cognitive activity.

scholarly journals Development and experimental study of analyzer to enhance maritime safety

2021 ◽  
Vol 4 (3(112)) ◽  
pp. 27-35
Author(s):  
Pavlo Nosov ◽  
Serhii Zinchenko ◽  
Viktor Plokhikh ◽  
Ihor Popovych ◽  
Yurii Prokopchuk ◽  
...  
Keyword(s):  
Neural Networks ◽  
Maritime Transport ◽  
Test Error ◽  
Navigation Data ◽  
Critical Situation ◽  
The Neural Network ◽  
Simulation Results ◽  
Transport Management ◽  
Critical Situations

On the basis of empirical experimental data, relationships were identified indicating the influence of navigators' response to such vessel control indicators as maneuverability and safety. This formed a hypothesis about a non-random connection between the navigator's actions, response and parameters of maritime transport management. Within the framework of this hypothesis, logical-formal approaches were proposed that allow using server data of both maritime simulators and operating vessels in order to timely identify the occurrence of a critical situation with possible catastrophic consequences. A method for processing navigation data based on the analysis of temporal zones is proposed, which made it possible to prevent manifestations of reduced efficiency of maritime transport management by 22.5 %. Based on cluster analysis and automated neural networks, it was possible to identify temporary vessel control fragments and classify them by the level of danger. At the same time, the neural network test error was only 3.1 %, and the learning error was 3.8 %, which ensures the high quality of simulation results. The proposed approaches were tested using the Navi Trainer 5000 navigation simulator (Wärtsilä Corporation, Finland). The simulation of the system for identifying critical situations in maritime transport management made it possible to reduce the probability of catastrophic situations by 13.5 %. The use of automated artificial neural networks allowed defining critical situations in real time from the database of maritime transport management on the captain's bridge for an individual navigator.

Oil Distribution Laws and Main Controlling Factors Analyses of Fuyu Reservoir in Xinmiaoxi-Xinbei Area

2013 ◽  
Vol 848 ◽  
pp. 291-296
Author(s):  
Bing Yan Zeng ◽  
Shi Zhong Ma ◽  
Wen Guang Wang ◽  
Jing Yun Cheng
Keyword(s):  
Water Distribution ◽  
Oil And Gas ◽  
Continuous Distribution ◽  
Research Area ◽  
High Position ◽  
Control Factors ◽  
Oil Distribution ◽  
Controlled Potential ◽  
Oil Water ◽  
Hydrocarbon Expulsion

The distribution of oil and water in Xinmiaoxi-Xinbei area Fuyu reservoir is very complicated and the variation of productivity is very large. The distribution on the whole is continuous,but there are special hydrocarbon accumulation characteristics that lower place oiliness but high location multi-water. From the six major geological factors: source, reservoir and cap rock, trap, migration,and preservation condition, synthetically considering the distribution of mature source rock, underwater distributary channels distribution, the matching relation of fault and sand, single trap and inherited palaeostructure, combined with the distribution regular of reservoir to study the enrichment regularity of research. Finally find that this research area has a accumulate characteristics, that is, ancient tectonic controlled potential, the single trap reservoir control the reservoir, lithology control boundary, single sand bodies control layer. Among these, the high ancient structure formed before the peak of hydrocarbon expulsion is the advantage point oil and gas migration, is also the main control factors of continuous distribution of oil and gas; Single trap is the main controlling factor of the complex oil-water distribution that "high position is water and low position is oil", and then we can determine the cause of the complex regularities of oil-water distribution.

scholarly journals On the issue of improving the effectiveness of training and retraining of employees of departments to ensure the safety of persons subject to state protection in critical situations

2021 ◽  
pp. 149-153
Author(s):  
Rostislav Samolyuk ◽  
Nikolay Ustyuganin
Keyword(s):  
Innovative Approach ◽  
Critical Situation ◽  
Internal Affairs ◽  
Effectiveness Of Training ◽  
State Protection ◽  
Operational Structure ◽  
Critical Situations

The article is devoted to a brief review and justification of an innovative approach to ensuring the needs of employees of security units of persons subject to state protection of the Ministry of internal Affairs of Russia in an operational structure capable of skillful and effective actions potentially in any critical situation of encroachments on the object of protection during the entire service.

scholarly journals Introduction Matters: Manipulating Trust in Automation and Reliance in Automated Driving

2017 ◽  
Author(s):  
Moritz Körber ◽  
Eva Baseler ◽  
Klaus Bengler
Keyword(s):  
Road Traffic ◽  
Research Area ◽  
Instrument Cluster ◽  
Automated Driving ◽  
Driving System ◽  
The Road ◽  
Trust Level ◽  
Trust In Automation ◽  
The Individual ◽  
Critical Situations

Trust in automation is a key determinant for the adoption of automated systems and their appropriate use. Therefore, it constitutes an essential research area for the introduction of automated vehicles to road traffic. In this study, we investigated the influence of trust promoting (Trust promoted group) and trust lowering (Trust lowered group) introductory information on reported trust, reliance behavior and take-over performance. Forty participants encountered three situations in a 17-minute highway drive in a conditionally automated vehicle (SAE Level 3). Situation 1 and Situation 3 were non-critical situations where a take-over was optional. Situation 2 represented a critical situation where a take-over was necessary to avoid a collision. A non-driving-related task (NDRT) was presented between the situations to record the allocation of visual attention. Participants reporting a higher trust level spent less time looking at the road or instrument cluster and more time looking at the NDRT. The manipulation of introductory information resulted in medium differences in reported trust and influenced participants’ reliance behavior. Participants of the Trust promoted group looked less at the road or instrument cluster and more at the NDRT. The odds of participants of the Trust promoted group to overrule the automated driving system in the non-critical situations were 3.65 times (Situation 1) to 5 times (Situation 3) higher. In Situation 2, the Trust promoted group’s mean take-over time was extended by 1154 ms and the mean minimum time-to-collision was 933 ms shorter. Six participants from the Trust promoted group compared to no participant of the Trust lowered group collided with the obstacle. The results demonstrate that the individual trust level influences how much drivers monitor the environment while performing an NDRT. Introductory information influences this trust level, reliance on an automated driving system, and if a critical take-over situation can be successfully solved.

scholarly journals Network Systems Analysis in Case of Critical Situations

2013 ◽  
Vol 14 (4) ◽  
pp. 262-271
Author(s):  
Jacek Mazurkiewicz
Keyword(s):  
Systems Analysis ◽  
Formal Model ◽  
Transportation Systems ◽  
System Structure ◽  
Network Systems ◽  
Critical Situation ◽  
Reliability Parameters ◽  
System Behaviour ◽  
Definition Of ◽  
Critical Situations

Abstract The paper describes the analysis and discussion of the network systems in case of the critical situation that happens during ordinary work. The formal model is proposed - based on the two types of real sophisticated network systems - with the approach to its modelling based on the system behaviour observation. The definition of the critical situation sets are created by reliability, functional and human reasons. No restriction on the system structure and on a kind of distribution describing the system functional and reliability parameters is the main advantage of the approach. The proposed solution seems to be essential for the owner and administrator of the transportation systems.

Research on Character of Sandlayer in Heidimiao Oil Layer in Yingtai Area

2013 ◽  
Vol 734-737 ◽  
pp. 426-431
Author(s):  
Gui You Lv
Keyword(s):  
Water Distribution ◽  
Great Depth ◽  
Research Area ◽  
Geological Structure ◽  
Data Logging ◽  
The West ◽  
Lateral Connectivity ◽  
Depth Difference ◽  
Distribution Rules ◽  
Strong Control

Based on the division and correlation of sand groups in Heidimiao, synthesizing the information of 3D seism data, drilling data, logging data and core data, well ties profile, sandstone contrast diagram and oil reservoir profile are drawn in this article in a way of combining the data of logging and seism. Furthermore, spatial distribution rules of sandlayer in Heidimiao oillayer are expected to be analyzed in this article through the data of stratum thickness, sandstone thickness, the thickness ratio of sandstone to stratum, and porosity isogram. The rules are described as: the Heidimiao oil layer is thick in east and north but thin in the west and south as a whole. Little sandstone is found in H3 (Nen 2) but that is highly developed in H2 (Nen 3) and H1 (Nen 4) in which lenticular sandlayer can also be found. Sandstones in each oil group are developed with varying thickness, great depth difference and complex lateral connectivity. What’s more, sandstones in the research area manifest a decline in layers and thickness from east to west. The thinner and smaller-scale sandstones in the west have weak lateral connectivity but strong control of oil and water distribution, which results in the formation of concealed lithological reservoir uncontrolled by geological structure.

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