FEATURES OF CALCULATION OF THE REQUIRED QUANTITY OF GRAIN TERMINAL TRACKS IN SEA PORTS IN MODERN CONDITIONS

Purpose. Ukraine is one of the world's five largest producers of grain crops. Much of the grain is exported. Traditionally, grain cargoes are exported through the western land crossings and seaports of the Black and Azov Seas, with the bulk of grain exports going through the port of Nikolaev and the ports of Greater Odessa. Rail transport provides delivery to exporting ports up to 2/3 of the total volume of grain transshipment in ports. Given the significant number of operations in the general technological process of processing grain wagons in ports, the required capacity of technical equipment of railway transport (number of tracks, locomotives, weighing devices, etc.) plays a significant role in the duration of the transshipment process and total operating costs. In this regard, determining the required number of ways to service the flow of grain for export is an urgent task. Methods. Comprehensive analysis of technical equipment and technology of railway transport of grain terminals in seaports, statistical analysis, graph-analytical modeling. Results. Based on the processing of statistics on the delay of wagons due to commercial marriages with grain cargo in the seaport, the conditional division of detained wagons due to and, consequently, the duration of delay of wagons into long and short. The characteristics of random values of the delay of the car are established and the dependence of the number of detained cars on the value of the total car traffic with grain cargo entering the transshipment is obtained. For short-term delays it is a polynomial dependence of the second degree, for long-term delays it is characterized by exponential dependence. Based on research, an additional track capacity has been established for the sedimentation of detained cars and recommendations have been developed for the number of such tracks and their length. Based on the rationing of the duration of shunting operations with delayed wagons, an additional working fleet of shunting locomotives for servicing delayed wagons was determined and recommendations for the location of wagon scales for commercial weighing of wagons in the process of processing grain wagons in the port. Practical significance. The obtained results can be used to determine the number of tracks and the total capacity of grain terminals in seaports. The duration of additional shunting operations to service the detained cars allows to clarify the calculation of the required locomotive fleet of grain terminals.

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PERANCANGAN SISTEM DISTRIBUSI ZONA II TANJUNG BALAI KARIMUN KEPULAUAN RIAU

Journal of Mechanical Engineering and Mechatronics ◽

10.33021/jmem.v4i1.661 ◽

2019 ◽

Vol 4 (1) ◽

pp. 21

Author(s):

Ivan Cahya Raswoko ◽

Syamsir Abduh ◽

Maula Sukmawidjaja

Keyword(s):

Cross Section ◽

Distribution System ◽

Power Plants ◽

Electrical Energy ◽

Short Term ◽

Medium Voltage ◽

Section Size ◽

Zone Ii ◽

Total Capacity

<p>The distribution system is one of the most important elements to be able to distribute electrical energy from power plants to consumers. Tanjung Balai Karimun, Kepulauan Riau is an island near the island of Batam. PT Karimun Power Plant has built a plant with a total capacity of 7.5 MW consisting of 5 machines with a capacity of 1.5 MW each. This research is aimed at the appropriate distribution system to be applied there. Medium voltage air duct is one of the existing systems, and is suitable to be applied in Zone II Tanjung Balai Karimun Riau Islands. The cross section size used in the calculated conduit is 100 mm² in the upstream and 16 mm² in the downstream. These conveyors are supported by a pole with a height of 12 m and with a distance between the poles as wide as 100 m. in this system there is also a transformer with a capacity of 160-4000 kVA. This system was tested using ETAP software and produced data that the available generator was not enough to carry the burden in Zone II Tanjung Balai Karimun. Due to inadequate power generation, the long-term solution is to increase the number of plants while the short-term solution is to reduce the burden to be carried.<br />Keywords. SUTM, Sistem Distribusi, ETAP</p>

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A research on internal control, cash dividends and enterprise performance based on economic consequences

Filomat ◽

10.2298/fil1615223w ◽

2016 ◽

Vol 30 (15) ◽

pp. 4223-4234

Author(s):

Yilin Wang ◽

Lei Ruan

Keyword(s):

Internal Control ◽

Positive Impact ◽

Investment Decision ◽

Synergetic Effect ◽

Research Process ◽

Practical Significance ◽

Enterprise Performance ◽

Cash Dividend ◽

Short Term

Whether internal control and cash dividend will have an interactive synergetic effect on enterprise performance or not is a study of both theoretical value and practical significance. Consequently, this article adopts a two-stage investment decision research process, explains the complex theoretical relationship among internal control, cash dividend and enterprise performance and, taking the Chinese A-share motherboard as an example, further explores their interactive synergetic effect. The research concludes that: (1) Internal control and cash dividend can contribute to the improvement of both short-term and longterm enterprise performance; (2) Internal control and cash dividend do have a significant synergetic effect, however there is a large disparity between the synergetic effect on short-term and long-term enterprise performance. In addition, the study finds that internal control and cash dividends are mutually regulative, thereby diminishing the positive impact on short-term enterprise performance and conversely enhancing the positive impact on long-term enterprise performance respectively.

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STUDY OF THE PASSAGE AND TRANSPORTATION CAPACITY OF THE RAILWAY INFRASTRUCTURE OF THE MINING AND PROCESSING PLANT UNDER THE CONDITIONS OF INCREASING THE VOLUMES OF TRANSPORTATION OF RAW MATERIALS

Transport systems and transportation technologies ◽

10.15802/tstt2020/217417 ◽

2020 ◽

pp. 86-93

Author(s):

Д. М. КОЗАЧЕНКО ◽

В. В. МАЛАШКІН ◽

М. І. БЕРЕЗОВИЙ ◽

О. Л. ІСКРА

Keyword(s):

Carrying Capacity ◽

Raw Materials ◽

Mining Industry ◽

Practical Significance ◽

Processing Plant ◽

Technical Equipment ◽

Railway Transport ◽

Industrial Enterprises ◽

Railway Infrastructure ◽

Crushing Plant

Purpose. In modern conditions, the problem of increasing the efficiency of the railway transport of industrial enterprises is very urgent, and, first of all, this applies to enterprises of the metallurgical and mining industry, which are the largest recipients and consignors of goods by the railways of Ukraine. In this regard, the purpose of the study is to develop measures to increase the throughput and carrying capacity of the railway infrastructure of a mining enterprise in the context of an increase in the transportation of raw materials. Methods. The analysis of the technical equipment and technology of the railway transport of a large mining and processing plant in Ukraine was carried out using the methods of graphical analytical modeling. Results. The track development of the mining and processing plant ensures the delivery of iron ore from the quarry to the crushing and processing plant. The plant is presented as a system for transporting raw materials from loading points to unloading points, in which the process of its consumption is uniform (unloading ore on the tracks of a crushing plant), and the process of its replenishment is uneven (loading ore at loading points). Smoothing the uneven supply of raw materials between the points of loading and unloading provides the track capacity of the station adjacent to the crushing plant. The carrying capacity of the existing railway infrastructure of the plant does not ensure the mastery of the estimated volumes of transportation of raw materials. Analysis of the results of graphical modeling of the mining and processing plant showed that the limiting elements are the processing capacity of the crushing plant and long distances between the loading points and the abutment station. Organizational and technical solutions are proposed to increase the throughput of the railway infrastructure of the mining and processing plant. Practical significance. The results obtained can be used in the implementation of recommendations aimed at increasing the efficiency of the functioning of the railway transport of the mining and processing plant in conditions of an increase in the volume of transportation of raw materials.

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ANALYSIS OF LOGISTIC RISKS OF RAILWAY TRANSPORT OF THE MINING AND CONCENTRATING PLANT UNDER CONDITIONS OF INCREASING PRODUCTION VOLUMES OF FINISHED PRODUCTS

Transport systems and transportation technologies ◽

10.15802/tstt2021/237650 ◽

2021 ◽

pp. 41

Author(s):

D. KOZACHENKO ◽

V. MALASHKIN ◽

M. BEREZOVYI ◽

S. BORYCHEVA

Keyword(s):

Carrying Capacity ◽

Raw Materials ◽

Mining Industry ◽

Practical Significance ◽

Processing Plant ◽

Technical Equipment ◽

Railway Transport ◽

Industrial Enterprises ◽

Railway Infrastructure ◽

Crushing Plant

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Conceptual short-term memory (CSTM) supports core claims of Christiansen and Chater

Behavioral and Brain Sciences ◽

10.1017/s0140525x15000928 ◽

2016 ◽

Vol 39 ◽

Author(s):

Mary C. Potter

Keyword(s):

Working Memory ◽

Rapid Serial Visual Presentation ◽

Language Comprehension ◽

Short Term Memory ◽

Visual Presentation ◽

Long Term Memory ◽

Short Term ◽

Term Memory ◽

Use Of Knowledge

AbstractRapid serial visual presentation (RSVP) of words or pictured scenes provides evidence for a large-capacity conceptual short-term memory (CSTM) that momentarily provides rich associated material from long-term memory, permitting rapid chunking (Potter 1993; 2009; 2012). In perception of scenes as well as language comprehension, we make use of knowledge that briefly exceeds the supposed limits of working memory.

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Ultrastructural investigations of MDL 19,660-induced effects on the canine platelet and megakaryocyte

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100159412 ◽

1990 ◽

Vol 48 (3) ◽

pp. 374-375

Author(s):

D.E. Loudy ◽

J. Sprinkle-Cavallo ◽

J.T. Yarrington ◽

F.Y. Thompson ◽

J.P. Gibson

Keyword(s):

Antidepressant Drug ◽

Beagle Dogs ◽

Long Term Effects ◽

Short Term ◽

Platelet Counts ◽

Toxicological Studies ◽

Induced Aggregation ◽

Internal Architecture

Previous short term toxicological studies of one to two weeks duration have demonstrated that MDL 19,660 (5-(4-chlorophenyl)-2,4-dihydro-2,4-dimethyl-3Hl, 2,4-triazole-3-thione), an antidepressant drug, causes a dose-related thrombocytopenia in dogs. Platelet counts started to decline after two days of dosing with 30 mg/kg/day and continued to decrease to their lowest levels by 5-7 days. The loss in platelets was primarily of the small discoid subpopulation. In vitro studies have also indicated that MDL 19,660: does not spontaneously aggregate canine platelets and has moderate antiaggregating properties by inhibiting ADP-induced aggregation. The objectives of the present investigation of MDL 19,660 were to evaluate ultrastructurally long term effects on platelet internal architecture and changes in subpopulations of platelets and megakaryocytes.Nine male and nine female beagle dogs were divided equally into three groups and were administered orally 0, 15, or 30 mg/kg/day of MDL 19,660 for three months. Compared to a control platelet range of 353,000- 452,000/μl, a doserelated thrombocytopenia reached a maximum severity of an average of 135,000/μl for the 15 mg/kg/day dogs after two weeks and 81,000/μl for the 30 mg/kg/day dogs after one week.

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Comparison of Auditory, Language, Memory, and Attention Abilities in Children With and Without Listening Difficulties

American Journal of Audiology ◽

10.1044/2020_aja-20-00018 ◽

2020 ◽

Vol 29 (4) ◽

pp. 710-727

Author(s):

Beula M. Magimairaj ◽

Naveen K. Nagaraj ◽

Alexander V. Sergeev ◽

Natalie J. Benafield

Keyword(s):

Auditory Processing ◽

Short Term Memory ◽

Group Differences ◽

Long Term Memory ◽

Short Term ◽

Significant Group ◽

Term Memory ◽

Memory And Attention ◽

Speed And Accuracy

Objectives School-age children with and without parent-reported listening difficulties (LiD) were compared on auditory processing, language, memory, and attention abilities. The objective was to extend what is known so far in the literature about children with LiD by using multiple measures and selective novel measures across the above areas. Design Twenty-six children who were reported by their parents as having LiD and 26 age-matched typically developing children completed clinical tests of auditory processing and multiple measures of language, attention, and memory. All children had normal-range pure-tone hearing thresholds bilaterally. Group differences were examined. Results In addition to significantly poorer speech-perception-in-noise scores, children with LiD had reduced speed and accuracy of word retrieval from long-term memory, poorer short-term memory, sentence recall, and inferencing ability. Statistically significant group differences were of moderate effect size; however, standard test scores of children with LiD were not clinically poor. No statistically significant group differences were observed in attention, working memory capacity, vocabulary, and nonverbal IQ. Conclusions Mild signal-to-noise ratio loss, as reflected by the group mean of children with LiD, supported the children's functional listening problems. In addition, children's relative weakness in select areas of language performance, short-term memory, and long-term memory lexical retrieval speed and accuracy added to previous research on evidence-based areas that need to be evaluated in children with LiD who almost always have heterogenous profiles. Importantly, the functional difficulties faced by children with LiD in relation to their test results indicated, to some extent, that commonly used assessments may not be adequately capturing the children's listening challenges. Supplemental Material https://doi.org/10.23641/asha.12808607

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