scholarly journals The development of digital models of the soil cover in the western part of Bol’shezemel’skaya tundra

2019 ◽  
pp. 21-46
Author(s):  
V. N. Vekshina
Keyword(s):  
Soil Cover ◽  
Small Scale ◽  
Landsat 8 ◽  
Soil Maps ◽  
Digital Models ◽  
Medium Scale ◽  
Digital Mapping ◽  
Initial Medium ◽  
Bol’Shezemel’Skaya Tundra ◽  
Digital Soil Maps

The methods of digital mapping are promising for creating soil maps on difficultly accessible territories. This study was aimed at searching of optimal approaches for digital mapping of the soil cover in poorly studied western part of the Bol’shezemel’skaya tundra on different scales. Medium-scale (1 : 200 000) and small-scale (1 : 1 M) soil maps served as the source of initial information about soils of this region; actual information of the state of the territory was obtained from remote sensing data (Landsat 8 scenes, Aug. 14, 2013) and digital elevation model ASTER GDEM v.2. After extraction of information and the choice of predictors, the analysis of digital soil cover models obtained with the use of different algorithms – Random Forest (RF), Multinomial Logistic Regression (MLR) and Linear Discriminant Analysis (LDA) – was performed. The coefficient of agreement between the newly developed digital models and the initial paper-based soil maps (kappa) was calculated. This test demonstrated that the RF algorithm ensures the best results, so the final digital maps were obtained using it. Averaged kappa values for the compared small- and medium-scale models were as follows: RF – 0.39 and 0.36; MLR – 0.31 and 0.31; and LDA – 0.28 and 0.18, respectively. After the preliminary correction of the initial medium-scale map, the kappa values somewhat increased (RF – 0.39, MLR – 0.35, LDA – 0.30). At the stage of evaluation of digital soil maps obtained with the use of RF algorithm, these maps and the initial soil maps were compared with independent point-size terrain data. The degree of agreement between these data and the new digital soil maps proved to be no less than that for the initial maps. For the initial and digital small-scale maps, it reached 24 and 26 %, respectively; for the initial and digital medium-scale maps, 54 and 43 %, respectively. After the preliminary correction of the initial medium-scale map, the degree of agreement between the digital model and terrain data improved considerably and reached 61 %. This method of digital soil mapping on the basis of analogous data seems to be optimal.

Digital soil maps can perform as well as large-scale conventional soil maps for the prediction of catchment baseflows

Geoderma ◽  
2021 ◽  
Vol 400 ◽  
pp. 115230
Author(s):  
Zisis Gagkas ◽  
Allan Lilly ◽  
Nikki J. Baggaley
Keyword(s):  
Large Scale ◽  
Soil Maps ◽  
Digital Soil Maps

TurkStream Collapse Test Program

2018 ◽  
Author(s):  
Chris Timms ◽  
Doug Swanek ◽  
Duane DeGeer ◽  
Arjen Meijer ◽  
Ping Liu ◽  
...  
Keyword(s):  
Thermal Ageing ◽  
Full Scale ◽  
The Black Sea ◽  
Small Scale ◽  
Test Program ◽  
Line Pipe ◽  
Medium Scale ◽  
Collapse Resistance ◽  
Full Scale Tests ◽  
The Impact

The TurkStream pipeline project is designed to transport approximately 32 billion cubic meters of natural gas annually from Russia to Turkey under the Black Sea, with more than 85% of the deep-water route being deeper than 2000 m. The offshore section is intended to consist of two parallel lines, each approximately 900 km long. The preliminary stages of the front end engineering design (pre-FEED) phase was managed by INTECSEA. To support the analyses and design of the deepest portions, a full scale collapse test program was performed by C-FER Technologies (C-FER). This collapse test program, which included 62 full-scale collapse and pressure+bend tests, 54 medium-scale ring collapse tests, and hundreds of small-scale tests, was primarily aimed at measuring, quantifying and documenting the increase in pipe strength and collapse resistance resulting from the thermal induction heat treatment effect (thermal ageing) that arises during the pipe coating process. Two grades of 32-inch (813 mm) outside diameter (OD) line-pipe, SAWL450 and SAWL485 with wall thicknesses of 39.0 mm or 37.4 mm, respectively, were supplied from various mills for testing. The collapse test program objectives were as follows: • Determine the collapse resistance of line pipes originating from various pipe mills; • Determine the pressure+bend performance of line pipes originating from various pipe mills; • Measure the effect of thermal ageing on material and collapse testing results, including the impact of multiple thermal cycles; and • Evaluate the results of medium-scale ring collapse tests as compared to full-scale tests. This paper presents selected results of this work, along with some comparisons to predictive equations.

scholarly journals Compilation of novel and renewed, goal oriented digital soil maps using geostatistical and data mining tools

2015 ◽  
Vol 64 (1) ◽  
pp. 49-64 ◽  
Author(s):  
László Pásztor ◽  
Annamária Laborczi ◽  
Katalin Takács ◽  
Gábor Szatmári ◽  
Endre Dobos ◽  
...  
Keyword(s):  
Data Mining ◽  
Soil Maps ◽  
Mining Tools ◽  
Digital Soil Maps

scholarly journals Soil Regions of Poland According To Ag Boden Criteria

2008 ◽  
Vol 13 (1) ◽  
pp. 121-132
Author(s):  
Katarzyna Ostaszewska
Keyword(s):  
Soil Cover ◽  
Small Scale ◽  
Main Structure ◽  
Soil Cover Structure ◽  
High Level

Abstract The purpose of this paper is the delimitation of the main structure of the soil cover in Poland. The German methodology, used to define high-level taxonomic units, is applied. The method applied is useful for the presentation of the soil cover structure in small-scale maps (e.g., maps of continents).

scholarly journals ANALYSIS OF THE FUCTIONAL ROLE OF RICE MILLING COMPANY ON THE WELFARE OF RICE FARMERS IN THE SUB-DISTRICT BUAY MADANG TIMUR DISTRICT OKU TIMUR

Jurnal AKTUAL ◽  
2019 ◽  
Vol 16 (1) ◽  
pp. 47
Author(s):  
Aisah Aisah
Keyword(s):  
Large Scale ◽  
Raw Materials ◽  
Small Scale ◽  
Functional Roles ◽  
Medium Scale ◽  
Rice Farmers ◽  
Result Show ◽  
Rice Milling ◽  
Processing And Storage

Rice Milling Company is rice industry’s oldest and largest classified in Indonesia, which is able to absorb more than 10 million workers, handles more than 40 million tons of grain.  Rice Milling Company agro-industy is the central point, because this is where the main product is obtained in the form of rice and raw materials for advanced processing of food and industrial products.  Rice Miling Unit in the district of OKU Timur there is some skala, ranging form small-scale, medium-scale to large-scale.  Fuctional benefits of each different scale milling is also different.  The average rice farmers often sell gabahnya to the rice milling unit closest to the place residence, whether it is large-scale, medium and small.  Rice produced by the milling-grinding different quality.  Usually when a large-scale millimg yield of rice is cleaner than the other scale.  But it does not become a reference for milling grain milling usually depends on consumer demand.  The purpose of the study are : 1.  To determine levels of volume (tonnage) and the retention time of each service fuctional rice storage (barns) wich carried a different scale rice milling unit.  2.  To determine differences in the bebefits of economic transactions received by farmers and rice millers of different scale of business, especially when seen from the level of the milling costs, the purchase price of rice by rice milling unit, and the quality of milling services and service scale.  The result show that : the fuctional role of each is different milling.  Large-scale milling has three fuctional roles are : Processing, storage and distribution.  Medium-scale miling functional has two roles, namely : processing and distribution.  While small-scale rice milling unit has only two functional roles are : processing and storage.

scholarly journals KAJIAN PERAN RISET DAN PENGEMBANGAN DALAM MENDUKUNG INDUSTRI KAKAO NASIONAL = STUDY ON THE ROLE OF RESEARCH AND DEVELOPMENT IN SUPPORTING INDONESIAN COCOA INDUSTRY

2016 ◽  
Vol 10 (1) ◽  
pp. 19-26
Author(s):  
Lamhot P. Manalu
Keyword(s):  
Research And Development ◽  
Foreign Exchange ◽  
Oil Palm ◽  
Small Scale ◽  
Processing Industry ◽  
Average Growth ◽  
Medium Scale ◽  
Intermediate Products ◽  
Quality Policy

Cocoa is commodities third largest foreign exchange earner after oil palm and rubber. In 2012 production totaled 833 310 tonnes of cocoa with an average growth of 1.56%. There are two major challenges in the development of the national cocoa industry, the increase in quantity (production and productivity) and quality. To support these efforts the role of research and development is needed to ensure that the procedures adopted are appropriate and fit. This study aims to study the role of research and development and other supporting factors in addressing the problems of the national cocoa. The study is in the form of survey respondents which are R&D institutes, universities and cocoa processing industry. The results show that there is a problem of national cocoa industry in all aspects, here the cultivation aspect is the biggest problem. The next aspects are mentoring, institutional, business scale, quality, policy, processing of intermediate products and processing of downstream products. The study also shows that there is still a lot of research results that can not be utilized by the cocoa industry, the rest has to be applied even if but only for a small scale so that the less significant. In the small and medium scale of cocoa enterprises, the equipment used is generally low capacity so inefficient. ABSTRAKKakao merupakan komoditas perkebunan penghasil devisa terbesar ketiga setelah kelapa sawit dan karet. Pada tahun 2012 produksi kakao tercatat sebesar 833.310 ton dengan rata-rata pertumbuhan sebesar 1,56%. Ada dua tantangan utama dalam pengembangan industri kakao nasional yaitu peningkatan kuantitas (produksi dan produktifitas) dan kualitas. Untuk mendukung usaha tersebut peran riset dan pengembangan (risetbang) sangat dibutuhkan untuk memastikan prosedur yang diterapkan sudah tepat dan sesuai.Studi ini bertujuan untuk mempelajari peran risetbang serta faktor pendukung lainnya dalam menjawab permasalahan kakao nasional. Studi ini berupa hasil survey terhadap responden (pelaku risetbang kakao) yaitu lembaga penelitian dan pengembangan, universitas serta industri pengolahan kakao. Hasil kajian menunjukkan bahwa permasalahan industri kakao nasional terdapat pada semua aspek, dimana aspek budidaya merupakan permasalahan terbesar. Aspek berikutnya adalah penyuluhan, kelembagaan, skala usaha, mutu, kebijakan, pengolahan produk antara dan pengolahan produk hilir. Studi juga menunjukkan bahwa masih banyak hasil riset yang tidak dapat dimanfaatkan oleh industri kakao skala besar, sisanya walaupun telah bersifat aplikatif tetapi hanya untuk skala kecil sehingga kurang signifikan. Pada industri usaha skala kecil dan menengah umumnya peralatan yang digunakan berkapasitas rendah sehingga tidak efisien.

scholarly journals Effect of the scale of production on the cost-effectiveness of milk production systems belonging to the “Balde Cheio” program

2018 ◽  
Vol 39 (3) ◽  
pp. 1211
Author(s):  
Flávio De Moraes ◽  
Marcos Aurélio Lopes ◽  
Francisval De Melo Carvalho ◽  
Afonso Aurélio de Carvalho Peres ◽  
Fábio Raphael Pascoti Bruhn ◽  
...  
Keyword(s):  
Cost Effectiveness ◽  
Labor Force ◽  
Milk Production ◽  
Large Scale ◽  
Unit Cost ◽  
Small Scale ◽  
Total Cost ◽  
Medium Scale ◽  
Return On Capital ◽  
The Cost

This study investigates the cost-effectiveness of 20 demonstration units (DUs) belonging to the "Balde Cheio" program. The units in question are from the state of Rio de Janeiro, Brazil, dating from January to December 2011, and are sorted according to the scale of production (small, medium and large). The data were analyzed using Predictive Analytical software (PASW) 18.0. The scale of production influenced the total cost of milk production, and therefore profitability and cost-effectiveness. The large-scale stratum showed the lowest total unit cost. The positive results in medium and large scales in milk production lead to optimal conditions for long-term production, with the capitalization of cowmen. The items regarding the effective operating cost (EOC) with the biggest influence on the costs of dairy activity in the small scale stratum were food, energy and miscellaneous expenses. In the medium scale, these were food, labor force, and miscellaneous expenses. Finally, in the large scale, they were food, labor force and energy. In the small and large scale, the items regarding the total cost with the biggest influence on the costs of dairy activity were food, labor force, and return on capital, while in the medium scale, they were food, return on capital, and labor force. The average break-even point of 14 of the DUs was higher than the average daily production.

scholarly journals Laboratory Evaluation and Construction of Fully Recycled Low-Temperature Asphalt for Low-Volume Roads

2020 ◽  
Vol 2020 ◽  
pp. 1-12
Author(s):  
Christiane Raab ◽  
Manfred N. Partl
Keyword(s):  
Ambient Temperature ◽  
Laboratory Experiments ◽  
Traffic Simulation ◽  
Traffic Load ◽  
Laboratory Evaluation ◽  
Small Scale ◽  
Medium Scale ◽  
Low Volume Roads ◽  
Low Volume

Growing economy and increasing pollution evoke the need for more environmentally friendly road construction techniques and the saving of natural resources. In this context, cold recycling plays an important role since, on the one hand, it allows to reduce CO2 emissions drastically and, on the other hand, it offers a variety of opportunities for high percentages of recycling. Inspired by experience in Sweden, the international project “Optimal Recycling of Reclaimed Asphalts for low-traffic Pavement” (ORRAP) for low-volume roads in the Upper Rhine region aims to develop and establish a new strategy for 100% reclaimed asphalt pavement (RAP) at ambient temperature (20°C) without adding virgin bituminous binders or rejuvenators. The still ongoing research project involves laboratory experiments as well as in situ test sections. The link between small-scale laboratory experiments and in situ testing is provided by medium-scale traffic simulation in the laboratory. This paper describes results from medium-scale compaction in the laboratory using different methods as well as traffic simulation with a medium-scale mobile traffic load simulator. The results show that compaction in the laboratory at ambient temperature (20°) is very difficult to achieve. Nevertheless, it was found that compaction at a temperature of 60°C appears possible and provides promising results regarding stability and rutting enabling the in situ construction. The in situ pavement construction at ambient temperature on a low-volume road in Switzerland resulted in a visibly well-compacted and stable base course which was covered by a hot mix asphalt surface course the day after. The test section will be monitored closely over the next 12 months.

scholarly journals Improved Detection of Tiny Macroalgae Patches in Korea Bay and Gyeonggi Bay by Modification of Floating Algae Index

2018 ◽  
Vol 10 (9) ◽  
pp. 1478
Author(s):  
Ahmed Harun-Al-Rashid ◽  
Chan-Su Yang
Keyword(s):  
High Resolution ◽  
Yellow Sea ◽  
Vegetation Index ◽  
Normalized Difference Vegetation Index ◽  
Ocean Color ◽  
The Yellow Sea ◽  
Small Scale ◽  
Landsat 8 ◽  
Modified Method ◽  
Macroalgal Bloom

This work focuses on the detection of tiny macroalgae patches in the eastern parts of the Yellow Sea (YS) using high-resolution Landsat-8 images from 2014 to 2017. In the comparison between floating algae index (FAI) and normalized difference vegetation index (NDVI) better detection by FAI was observed, but many tiny patches still remained undetected. By applying a modification on the FAI around 12% to 27% increased and correct detection of macroalgae is achieved from 35 images compared to the original. Through this method many scattered tiny patches were detected in June or July in Korea Bay and Gyeonggi Bay. Though it was a small-scale phenomenon they occurred in the similar period of macroalgal bloom occurrence in the YS. Thus, by using this modified method we could detect macroalgae in the study areas around one month earlier than the previously used Geostationary Ocean Color Imager NDVI-based detection. Later, more macroalgae patches including smaller ones occupying increased areas were detected. Thus, it seems that those macroalgae started growing locally from tiny patches rather than being transported from the western parts of the YS. Therefore, this modified FAI could be used for the precise detection of macroalgae.

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