scholarly journals Studies and research on the phenomenon of hydrodynamic erosion in river beds

2021 ◽  
Vol 15 (2) ◽  
pp. 273-280
Author(s):  
Paul-Vivian Sion ◽  
Mihaela Avram ◽  
Mihail Luca
Keyword(s):  
Simulation Model ◽  
Flow Section ◽  
River Section ◽  
Research Results ◽  
Research Sector ◽  
Topographic Model ◽  
Analysis Models ◽  
Technical Regulations

The phenomenon of hydrodynamic erosion affects the riverbeds in which sub-crossings of pipes or bridges are located. The depth of erosion is determined at a point in the riverbed by the use of specialized computational relationships. For some works located in the riverbed it is necessary to know the erosion depths on the perimeter of the flow section. The analysis models used to investigate the phenomenon of hydrodynamic erosion were: a - topographic model; b - calculation relations from the technical regulations; c - erosion simulation model on a river section. The obtained results were materialized by the evolution of the erosion depths on the considered river sector over an interval of about 5-15 years. The depth of erosion on the lower course of the Moldova River showed values from 0.75 m to 1.65 m on a research sector. The research results were capitalized on the design of the rehabilitation works of the constructions present in the riverbed.

scholarly journals MILKING EQUIPMENT OF " YALYNKA" (“HERRINGBONE”) "EUROCLASS 1200" TYPE TESTING RESULTS

2021 ◽  
Author(s):  
V. Smolyar ◽  
◽  
V. Rozhenko
Keyword(s):  
Technological Process ◽  
Low Voltage ◽  
Experimental Testing ◽  
Electricity Consumption ◽  
Electrical Equipment ◽  
Evidence Base ◽  
Average Intensity ◽  
Research Results ◽  
Machine Milking ◽  
Technical Regulations

Abstract The purpose of the research is – to evaluate the milking platform of "Yalynka" ("Herringbone") "EuroClass 1200" type manufactured by "GEA" (Germany) for milking cows based on the results of experimental testing. Research methods. During the testing of the milking parlor "Yalynka" "EuroClass 1200" type the quality of the technological process was determined using the methods described in ISO 5707:2007, ISO 6690:2007, DSTU 7435:2013 and DSTU 3662:2018, operational-technological and economic evaluation was carried out according to DSTU 8424:2015 and DSTU 4397:2005, safety and ergonomics of the equipment were determined according to DSTU EN ISO 12100:2014. Research results. According to the results of experimental testing, it was established that the milking parlor "Yalinka" "EuroClass 1200" type of German production at the appropriate level performs the technological process of machine milking of cows. The obtained research results showed that the average total milking time of one cow is 5,07 minutes, the average intensity of milk excretion as a whole during milking – 2,35 kg / min. Milk obtained during milking cows in terms of quality corresponds to the grade "Extra" in accordance with DSTU 3662: 2018. Devices for controlling the process of milking cows "DemaTron 70" and computer herd management system "Dairy Plan C21" perform the technological process of milking cows in automatic mode, control over the implementation of technical parameters of the milking process, milk accounting and shutdown of milking machines. Based on the results of conformity assessment of the construction of the milking parlor "Yalinka" "EuroClass 1200" type in terms of safety and ergonomics, it is established that it meets the requirements of DSTU EN 12100: 2014 and DSTU 60204-1: 2015 for items related to its design, which is the evidence base of its compliance with the Technical Regulations for the Safety of Machinery and the Technical Regulations for Low-Voltage Electrical Equipment. Productivity of the milking installation-platform makes 70 heads / hour. Serves the milking parlor 2 operators of machine milking. Electricity consumption per milking a cow is 0,13 kWh. Annual operating costs are 4247 UAH / head in the conditions of 3 times milking of cows. Conclusions. For the first time in Ukraine, experimental testing of the milking parlor "Yalinka" "EuroClass 1200" type showed that the equipment satisfactorily performs the technological process of machine milking of cows with their loose housing and provides milk of the "Extra" grade. The «Euroclass 1200» «Yalinka» milking parlor is characterized by a high technical level and can be widely used in Ukraine.

scholarly journals ON THE INVESTIGATION OF UPSCALING METHODS WITH THE PURPOSE OF RETAINING THE GEOLOGICAL HETEROGENEITY IN THE SIMULATION MODEL FOR TE GIAC TRANG FIELD

2011 ◽  
Vol 14 (2) ◽  
pp. 25-37
Author(s):  
Hung Quoc Nguyen ◽  
Lan Cao Mai
Keyword(s):  
Numerical Simulation ◽  
Simulation Model ◽  
Reservoir Simulation ◽  
Oil Field ◽  
Geological Model ◽  
Grid Cells ◽  
Huge Number ◽  
Research Results ◽  
Geological Heterogeneity ◽  
Model Size

Geological model is normally built with huge number of grid cells (106 – 107 cells) in order to model in details the geological heterogeneity of an oil field. Although increasingly developed nowadays, modern computers would be faced with substantial problems size in reservoir simulation. Upscaling the geological model before running numerical simulation, therefore, is greatly important to reduce the simulation model size while retaining the geological heterogeneity of the oil field. This paper presents an overview of fundamental background on upscaling methods and reports research results in applying various upscaling methods as well as suggests the most suitable methods for Te giac trang oilfield.

scholarly journals ỨNG DỤNG GIS XÂY DỰNG BẢN ĐỒ KHÔ HẠN ĐẤT SẢN XUẤT NÔNG NGHIỆP TẠI HUYỆN LỆ THỦY VÀ QUẢNG NINH, TỈNH QUẢNG BÌNH

2021 ◽  
Vol 5 (3) ◽  
pp. 2544-2554
Author(s):  
Lê Hữu Ngọc Thanh ◽  
Nguyễn Thị Nhật Linh ◽  
Nguyễn Hữu Ngữ ◽  
Dương Quốc Nõn ◽  
Nguyễn Thùy Phương
Keyword(s):  
Natural Resources ◽  
Agricultural Production ◽  
Drought Index ◽  
Agricultural Land ◽  
Gis Technology ◽  
Research Results ◽  
Quang Ninh ◽  
Technical Regulations ◽  
Application Of Gis

Thông qua việc ứng dụng công nghệ GIS, nghiên cứu đã sử dụng kết quả 9 trạm đo vệ tinh về lượng mưa, lượng bốc hơi và căn cứ theo Thông tư 14/2012/TT-BTNMT về quy định kỹ thuật điều tra thoái hóa đất của Bộ Tài nguyên và Môi trường để xây dựng bản đồ khô hạn đất sản xuất nông nghiệp tại huyện Lệ Thủy và huyện Quảng Ninh, tỉnh Quảng Bình. Kết quả nghiên cứu cho thấy: (i) Diện tích đất sản xuất nông nghiệp huyện Lệ Thủy và huyện Quảng Ninh lần lượt là 22.019 ha và 8.318 ha; (ii) Giai đoạn 2000 - 2019, kết quả chỉ số khô hạn (K) tại 9 trạm đo cho thấy số tháng có xuất hiện khô hạn từ 91 đến 112 tháng trong tổng số 240 tháng; (iii) Kết quả xây dựng bản đồ khô hạn cho thấy, diện tích đất sản xuất nông nghiệp có mức độ hạn trung bình của huyện Lệ Thủy và huyện Quảng Ninh lần lượt là 22.019 ha và 8.318 ha. ABSTRACT Through the application of GIS technology, the study used the results of 9 satellite measuring stations on rainfall, evaporation and according to Circular 14/2012 / TT-BTNMT on the technical regulations on degradation investigation land of the Ministry of Natural Resources and Environment to develop a dry map of agricultural land in Le Thuy and Quang Ninh district, Quang Binh province. The research results showed that: (i) The agricultural land areas of Le Thuy and Quang Ninh districts were 22,019 ha and 8,318 ha respectively; (ii) In the period of 2000 - 2019, the drought index (K) at 9 measuring stations showed that the number of months with drought occurred from 91 to 112 months out of 240 months; (iii) The results of the development of the drought map showed that the average agricultural production land areas of Le Thuy and Quang Ninh districts were 22.019 ha and 8.318 ha respectively.  

Contributions to the mechanisms of mitosis and roles of cytoplasmic microtubules from ultrastructural analyses of fungi

1978 ◽  
Vol 36 (2) ◽  
pp. 266-267
Author(s):  
I. Brent Heath
Keyword(s):  
Nuclear Envelope ◽  
Direct Application ◽  
Ultrastructural Analysis ◽  
General Interest ◽  
Research Results ◽  
Organelle Motility ◽  
Cytoplasmic Microtubules

Detailed ultrastructural analysis of fungal mitotic systems and cytoplasmic microtubules might be expected to contribute to a number of areas of general interest in addition to the direct application to the organisms of study. These areas include possibly fundamental general mechanisms of mitosis; evolution of mitosis; phylogeny of organisms; mechanisms of organelle motility and positioning; characterization of cellular aspects of microtubule properties and polymerization control features. This communication is intended to outline our current research results relating to selected parts of the above questions.Mitosis in the oomycetes Saprolegnia and Thraustotheca has been described previously. These papers described simple kinetochores and showed that the kineto- chores could probably be used as markers for the poorly defined chromosomes. Kineto- chore counts from serially sectioned prophase mitotic nuclei show that kinetochore replication precedes centriole replication to yield a single hemispherical array containing approximately the 4 n number of kinetochore microtubules diverging from the centriole associated "pocket" region of the nuclear envelope (Fig. 1).

Grammatical Morpheme Intervention Issues for Students Who Use AAC

2008 ◽  
Vol 17 (2) ◽  
pp. 62-68 ◽  
Author(s):  
Cathy Binger
Keyword(s):  
Special Interest ◽  
Augmentative And Alternative Communication ◽  
Intervention Program ◽  
Annual Conference ◽  
Alternative Communication ◽  
Research Results ◽  
School Aged Children ◽  
Grammar Acquisition ◽  
Device Use

Abstract Many children who use AAC experience difficulties with acquiring grammar. At the 9th Annual Conference of ASHA's Special Interest Division 12, Augmentative and Alternative Communication, Binger presented recent research results from an intervention program designed to facilitate the bound morpheme acquisition of three school-aged children who used augmentative and alternative communication (AAC). Results indicated that the children quickly began to use the bound morphemes that were taught; however, the morphemes were not maintained until a contrastive approach to intervention was introduced. After the research results were presented, the conference participants discussed a wide variety of issues relating to grammar acquisition for children who use AAC. Some of the main topics of discussion included the following: provision of supports for grammar comprehension and expression, intervention techniques to support grammatical morpheme acquisition, and issues relating to AAC device use when teaching grammatical morpheme use.

Children's Performance on a Binaural Fusion Task

1981 ◽  
Vol 24 (4) ◽  
pp. 520-525 ◽  
Author(s):  
Bruce L. Plakke ◽  
Daniel J. Orchik ◽  
Daniel S. Beasley
Keyword(s):  
Enhancement Effect ◽  
Sensation Level ◽  
Large Measure ◽  
Filter Bandwidth ◽  
Research Results ◽  
Presentation Modes ◽  
Monosyllabic Words ◽  
Better Than

Binaural auditory fusion of 108 children (4, 6, and 8 years old) was studied using three lists of monosyllabic words (WIPI) presented at two sensation levels (30 and 40 dB). The words were processed to produce three bandwidth conditions (100, 300, 600 Hz) and were administered via three presentation modes (binaural fusion 1, diotic, binaural fusion 2). Results showed improved discrimination scores with increasing age, sensation level, and filter bandwidth. Diotic scores were better than binaural fusion scores for the narrower bandwidth conditions, but the diotic enhancement effect was seriously compromised in the widest bandwidth (600 Hz) condition. The results confirmed the contention that prior research results were equivocal due, in large measure, to procedural variability. Methods for reducing such variability and enhancing the clinical viability of binaural fusion tasks are suggested.

Novel simulation model for many-body multipole dispersion interactions

1998 ◽  
Vol 94 (3) ◽  
pp. 417-433 ◽  
Author(s):  
MARTIN VAN DER HOEF ◽  
PAUL MADDEN
Keyword(s):  
Simulation Model ◽  
Dispersion Interactions ◽  
Many Body

Projecting a European Diploma in Psychology

2002 ◽  
Vol 7 (3) ◽  
pp. 221-224 ◽  
Author(s):  
Bernhard Wilpert
Keyword(s):  
Research Process ◽  
Project Team ◽  
Future Research ◽  
Research Results ◽  
External Constraints ◽  
Internal Procedures ◽  
The Eu

The paper presents an inside evaluation of the EuroPsyT project, funded by the EU Leonardo Program in 1999-2001. While standard research usually neglects to reflect on the internal and external constraints and opportunities under which research results are achieved, the paper stresses exactly those aspects: starting from a brief description of the overall objectives of the 11 countries project, the paper proceeds to describe the macro-context and the internal strengths and weaknesses of the project team, the internal procedures of cooperation,. and obstacles encountered during the research process. It winds up in noting some of the project's achievements and with a look towards future research.

The Structure of Wiggins' Interpersonal Circumplex: Cross-Cultural Studies

1999 ◽  
Vol 15 (3) ◽  
pp. 196-205 ◽  
Author(s):  
Rosario Martínez-Arias ◽  
Fernando Silva ◽  
Ma Teresa Díaz-Hidalgo ◽  
Generós Ortet ◽  
Micaela Moro
Keyword(s):  
Cultural Studies ◽  
Cross Cultural ◽  
The Other ◽  
Spanish Version ◽  
Interpersonal Circumplex ◽  
Research Groups ◽  
Independent Research ◽  
Research Results ◽  
Cross Cultural Studies

Summary: This paper presents the results obtained in Spain with The Interpersonal Adjective Scales of J.S. Wiggins (1995) concerning the variables' structure. There are two Spanish versions of IAS, developed by two independent research groups who were not aware of each other's work. One of these versions was published as an assessment test in 1996. Results from the other group have remained unpublished to date. The set of results presented here compares three sources of data: the original American manual (from Wiggins and collaborators), the Spanish manual (already published), and the new IAS (our own research). Results can be considered satisfactory since, broadly speaking, the inner structure of the original instrument is well replicated in the Spanish version.

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