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Publisher: Horizon Research Publishing   (Total: 54 journals)   [Sort by number of followers]

Showing 1 - 54 of 54 Journals sorted alphabetically
Advances in Diabetes and Metabolism     Open Access   (Followers: 26)
Advances in Economics and Business     Open Access   (Followers: 15)
Advances in Energy and Power     Open Access   (Followers: 16)
Advances in Pharmacology and Pharmacy     Open Access   (Followers: 6)
Advances in Signal Processing     Open Access   (Followers: 13)
Advances in Zoology and Botany     Open Access  
Bioengineering and Bioscience     Open Access   (Followers: 1)
Cancer and Oncology Research     Open Access   (Followers: 10)
Chemical and Materials Engineering     Open Access   (Followers: 24)
Civil Engineering and Architecture     Open Access   (Followers: 24)
Computational Research     Open Access   (Followers: 1)
Computer Science and Information Technology     Open Access   (Followers: 13)
Energy and Environmental Engineering     Open Access   (Followers: 7)
Environment and Ecology Research     Open Access   (Followers: 8)
Food Science and Technology     Open Access   (Followers: 3)
Immunology and Infectious Diseases     Open Access   (Followers: 9)
Intl. J. of Biochemistry and Biophysics     Open Access   (Followers: 1)
Intl. J. of Cardiovascular and Cerebrovascular Disease     Open Access   (Followers: 2)
Intl. J. of Neuroscience and Behavioral Science     Open Access   (Followers: 1)
Linguistics and Literature Studies     Open Access   (Followers: 4)
Manufacturing Science and Technology     Open Access   (Followers: 3)
Mathematics and Statistics     Open Access   (Followers: 5)
Nanoscience and Nanoengineering     Open Access   (Followers: 1)
Natural Resources and Conservation     Open Access   (Followers: 6)
Nursing and Health     Open Access   (Followers: 4)
Open J. of Dentistry and Oral Medicine     Open Access   (Followers: 1)
Sociology and Anthropology     Open Access   (Followers: 5)
Sport and Art     Open Access   (Followers: 1)
Universal J. of Accounting and Finance     Open Access   (Followers: 4)
Universal J. of Agricultural Research     Open Access   (Followers: 1)
Universal J. of Applied Mathematics     Open Access   (Followers: 5)
Universal J. of Applied Science     Open Access   (Followers: 2)
Universal J. of Biomedical Engineering     Open Access  
Universal J. of Chemistry     Open Access   (Followers: 1)
Universal J. of Clinical Medicine     Open Access  
Universal J. of Communications and Network     Open Access   (Followers: 1)
Universal J. of Computational Mathematics     Open Access   (Followers: 5)
Universal J. of Control and Automation     Open Access   (Followers: 4)
Universal J. of Educational Research     Open Access   (Followers: 1)
Universal J. of Electrical and Electronic Engineering     Open Access   (Followers: 6)
Universal J. of Engineering Science     Open Access   (Followers: 2)
Universal J. of Food and Nutrition Science     Open Access   (Followers: 6)
Universal J. of Geoscience     Open Access   (Followers: 4)
Universal J. of Industrial and Business Management     Open Access   (Followers: 1)
Universal J. of Management     Open Access   (Followers: 2)
Universal J. of Materials Science     Open Access   (Followers: 3)
Universal J. of Mechanical Engineering     Open Access   (Followers: 16)
Universal J. of Medical Science     Open Access  
Universal J. of Microbiology Research     Open Access  
Universal J. of Physics and Application     Open Access   (Followers: 2)
Universal J. of Plant Science     Open Access  
Universal J. of Psychology     Open Access   (Followers: 3)
Universal J. of Public Health     Open Access   (Followers: 2)
World J. of Computer Application and Technology     Open Access   (Followers: 4)
Journal Cover
Universal Journal of Geoscience
Number of Followers: 4  

  This is an Open Access Journal Open Access journal
ISSN (Print) 2331-9593 - ISSN (Online) 2331-9615
Published by Horizon Research Publishing Homepage  [54 journals]
  • About Fractal Geometry of the Glacial Cirques in Rila and Pirin Mountains
           (Southwest Bulgaria)

    • Abstract: Publication date:  Jun 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  3  Tzanko Tzankov   Rosen Iliev   Ilia Mitkov   and Svetla Stankova   Rila Mountain and Pirin Mountain (N 42.1°, E 23.5° and N 41.7°, E 23.4°) are the highest morphounits in the Balkan Peninsula. During the last Ice Age (Wuerm), their highest parts were subjected to an alpine-type glaciation. This led to the formation of various glacial landforms. The most expressive of them are the cirques. The main goal of the present study is to examine and evaluate the possible fractal geometry of 77 glacial cirques in Rila and Pirin Mountains. For this purpose is used the number / area method for estimating of surface fractals. This is the first investigation of this type for the study lands at all. The results obtained unambiguously confirm the fractal geometry of glacial cirques in the Rila and Pirin Mountains. This in turn provides new guidance in the analysis and interpretation of the relief building processes within the research area.
      PubDate: Jun 2018
  • Impacts of Climate Change on Al Tadamon Locality's Livelihoods, Blue Nile
           State, Sudan

    • Abstract: Publication date:  Jun 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  3  Maha Abd Elgaffar   Abdelnabi M.S.   and Abdo G. M   Climate change is a challenge in the Blue Nile State, Sudan. It puts pressure on the existing vulnerable natural resources and with population increase it leads to conflicts among pastorals and farmers communities. This cross sectional study aimed at determining the indicators of climate change and its impacts on the pastorals livelihoods. It also pointed out mitigation measures suggested by the communities to cope with the impacts of climate change. The methods used for data collection included review of meta-data, interviews based questionnaires and notes of researchers. The major findings indicated a decline in rainfall quantity (from 1000 mm to 800mm), duration (from 5 to 4 months/year) and patterns mostly during El Nino years. According to the respondents, animals died during the decades of severe droughts of 1992 to 2002. Pastorals used strategies to minimize the impacts of climate change such as performing small income generating activities in conjunction with herding.
      PubDate: Jun 2018
  • Analysis of the Changing Laws and Influencing Factors of Social and
           Economic Indicators in the Upper Reach of Han River Basin

    • Abstract: Publication date:  Jun 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  3  Xiu Wei   Dengfeng Liu   Jinkai Luan   Mingliang Li   and Mu Lin   In the socio-hydrological system, the social processes, ecological processes and hydrological processes coupled together and interacted. The base of the analysis and modeling of socio-hydrological processes is the quantitative analysis of the social processes. The construction of the middle route of the South-To-North Water Diversion Project in China and the implementation of the Dan River ecological management project will have an important impact on the socio-economic development of the upper Han River basin in China. In order to reveal the changing laws of social and economic indicators in the Upper Reach of Han River, The social and economic processes in the Upper Reach of Han River are quantitatively analyzed. In this study, 12 socio-economic indicators, such as Total population, Gross domestic product (GDP), Per capita net income of farmers, Fiscal revenue, Common cultivated land area and Total grain output of the 29 counties in the upper reach of the Han River Basin are utilized. Based on the year of Han River Ecological Comprehensive Management, the indicators and their growth rates are analyzed by methods of one-dimensional linear regression, Mann-Kendall comprehensive test and cumulative departure. Economic indicator curves and mutation analysis shows that before and after the Han River Ecological Management, the total grain output changed from the decline trend to significantly decreased, the common cultivated land area has experienced from the reduction to the significant reduction, then to the relatively stable change, the oil-bearing crops output showed a slight upward trend, and the other economic indicators changed from the slow upward trend to a significant upward trend. Growth rates curves of socio-economic indicators and mutation analysis shows that, during and especially after the period of Dan River Comprehensive Management, all of growth rates of the socio-economic indicators showed a downward trend in different ranges. According to the analysis results, some relevant ecological compensation suggestions are put forward for the Upper Reach of Han River Basin.
      PubDate: Jun 2018
  • Mapping and Simulating Watershed Performances Based on GIS, Remote
           Sensing, and SWAT

    • Abstract: Publication date:  Feb 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  1  Sandhyavitri Ari   Yusa Muhamad   Fajri Mardan   Sutikno Sigit   and Arai Kohei   This study has demonstrated that the combination of the geographic information systems (GIS), remote sensing (RS), and the Soil and Water Assessment Tool (SWAT) has yield a comprehensive land use mapping and an assessment report of watershed performances. The Tapung watershed located in sub-watershed of Siak, Riau Province, Indonesia was appointed as a study area. This research identified that the existing land use condition (in 2012) was dominated by oil palm plantation (46%), agriculture (24%), and bushes including shrubs (8%), and a small number of forest area (7%). Thus, there was a need for conducting reforestation management programs within the watershed areas in order to maintain the watershed performances. However, based on this study the existing watershed performances (scenario 1) was in the state of moderate conditions as the percentage of the critical coverage areas (PLK) was small (10.41%), with the annual water flow coefficient or water run-off (KRA) was high (0.45). Hence, there was a need to reduce this run-off to become 0.40 and NS = 0.50> 0.36. Hence, this study confirmed that the GIS, RS, and SWAT were capable for mapping and simulating the watershed performances systematically.
      PubDate: Feb 2018
  • Application of Statics Correction in the Processing of 3D Seismic Data
           from Onshore Niger Delta

    • Abstract: Publication date:  Feb 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  1  Opara, C.   Adizua, O. F.   and Ebeniro, J. O.   Statics correction was applied to a 3D seismic data acquired from an onshore Niger- delta field. The objective of the study was to derive a statics solution, which will correct for time shifts caused by topographic undulations, velocity anomalies in the near-surface and delayed travel times of the reflection signal through the weathered layer. In a previous study by authors, a near-surface seismic velocity and depth model, consisting of the weathering layer and three consolidated (sub-weathering) layers were first estimated. The first-arrivals were picked and used as input for this study. Statics correction consisting of elevation statics, long-wavelength refraction statics, and short-wavelength (residual statics) refraction statics was applied to the data. Interpretation of results show like differences such as a stronger alignment and coherence of reflection events, as well as an upward time shift of the reflection signals when compared with the input data (no statics applied) and the output data (statics applied).
      PubDate: Feb 2018
  • On the Geomorphology and Tectonic Position of Ciletuh-Jampang Area, West
           Java, Indonesia

    • Abstract: Publication date:  Apr 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  2  Iyan Haryanto   and Adjat Sudradjat   The Ciletuh-Jampang area is located in the western tip of the Southern Mountain of West Java, Indonesia. The area is presently well publicized in an effort to bring the unique geological characteristics exposed in this particular place to become the Global Geopark Network (GGN) of UNESCO. Ciletuh area exhibits a rare mega-aphitheater morphology. Stratigraphically West Java composed of clastic sediments of continental and volcanic island arc origin with the interruption of sub-aerial volcanic rocks and the coastal reefs banks developed along the coasts both in the north and the south. The age of the rock ranges between Eocene to Recent. The analysis of regional structure shows that a set of deep seated faults was recognized dominating the area in NNW-SSE and NNE-SSW directions. The released faulting occurred in E-W direction. The low angle shallow upthrustings facing north of skin structure in E-W direction dominate the upper part of the rock sequence. The structural analysis revealed the continuous prevailing stress field in SSW-NNE direction since Eocene time. The advancing landslides are readily observable in the rim of the amphitheater of Ciletuh. This phenomenon seems to demonstrate the initial stage (primarumpf) of the geomorphologic cycle taking into account the flat surface of Jampang area in the surroundings. Further investigations revealed the geomorphologic evidences of the formation of plateau, namely the erosion surface, old terraces, mountain tables, old beach ridges and the characteristics of drainage pattern. Two remnants of main plateau were recognized in Ciletuh-Jampang area, namely Bentang Plateau and Jampang Plateau. Further investigations show that at least five locations of plateau were identified in western part of Java Island, namely Dieng Plateau (+ 2,000 m), Pengalengan Plateau (+1,300 m), Bentang Plateau (+ 1,000 m), Jongrangan Plateau (+ 850 m) and Jampang Plateau (+ 700 m). A rough estimation reveals the annual rate of lifting in Java Island since Pliocene time ranges most likely between 5.0 and 5.4cm.
      PubDate: Apr 2018
  • Parametric Theory of Cutoff Grade Estimation in Mining

    • Abstract: Publication date:  Apr 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  2  B.K. Sahu   Estimation of cutoff grade (fractional assay), x(C), in mining of mineral resources is crucial for profit maximization and sustainable growth [7, 8, 9]. It is very complex involving several geological and economic random variables which can be solved assuming the parameters are time-invariant (Static Models) or are time-varying (Dynamic Models). Parametric estimation of cutoff grade, x(C), involves modeling of the assay distribution of the ore (globally and locally) and of the economic random variables such as sale value of marketable ores (s/ton) and cost of production of mineral resource (c/ton). Fractional assay, x where 0< x < 1, of minerals/oxides/elements in rocks and ores is known to possess globally/locally log-normal pdf or some log function of assay is Normal/Gaussian [1,3,4,6] under proper geological/statistical sampling, with the two parameters: mean(μ) and variance(σ2). However, estimation of cutoff grade, x(C), where(x(C) = inverse cdf, F-1 (x(C))), is a very complex problem for both static and dynamic modeling. A high cutoff induces lower profits as less ore material can be extracted for sale whereas a low cutoff also induces lower profits as a much larger quantity of lower grade ore and waste materials having little sale value have to be handled which increase the cost of mining and processing. Since life of mine is about 15 years or more, all profits must be reduced to net present value (NPV) for economic comparisons and decisions [5]. Static model assumes time-invariant geological, spatial and economic random variables (rv.s) or random vectors needing simpler statistical analysis [4] to estimate the required parameters, whereas dynamic modeling though more realistic and desirable) requires rather complex time series analysis and forecasting procedure [3]. Forecasted values of the predictors from the concerned dynamic model parameters [3] are then used as inputs to the (linearized) regression equation in dynamic model situations. Optimal cutoff grade, x(CO), is therefore a time-step specific and/or block specific random variable which does not have a global value to be computed. Therefore, general solution to optimal grade, x(CO) , under dynamic model is not feasible and hence, not pursued further.
      PubDate: Apr 2018
  • Determination of Dynamic Ocean Topography Using the Minimum Energy State

    • Abstract: Publication date:  Apr 2018
      Source:Universal Journal of Geoscience  Volume  6  Number  2  Peter C Chu   Geostrophic balance represents the minimum energy state in a linear system with conservation of potential vorticity. On the base of that, a minimum energy state (MES) method is proposed to determine dynamic topography (η) and in turn the absolute geostrophic velocity from hydrographic data through finding η to minimize a functional, . Numerical approach leads to a set of well-posed linear algebraic equations of η at grid points. Feasibility and advantage of the MES method are illustrated using the three-dimensional (T, S) data of the NOAA National Centers for Environmental Information (NCEI) World Ocean Atlas 2013 version 2 for the North Atlantic Ocean (100oW-6oW, 7oN-72oN) on 1o 1o grids.
      PubDate: Apr 2018
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Tel: +00 44 (0)131 4513762
Fax: +00 44 (0)131 4513327
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