bluuebunny/crossref_metadata_2025_split huggingface dataset:
Interpretation of One Dimensional Schlumberger Curve Resistivity Data using “Least Square” Inversion
Authors: Lestari Harmita , Nasri Muhammad , Zulkifli Andi , Aswad Sabrianto , Syamsuddin  
Published: September 2019

Abstract
The geoelectric method using Schlumberger configuration is one of the most widely used geophysical methods. In this study, a one-dimensional Schlumberger configuration will be applied to modeling the subsurface structure using two types of data, namely synthetic data and acquisition data in the field. The purpose of this study is to calculate resistivity (ρi) and determine the thickness (di) of the subsurface layer. In order for the model to be obtained to have a high level of accuracy, inversion least square is used. The value of resistivity and layer thickness obtained are very close to the synthetic model used. Comparison of calculation pseudo resistivity curves and observation pseudo resistivity has a small RMS error value which supports the accuracy of the study. This is obtained by giving initial guesses to the resistivity value of the acquisition data. The final results obtained from this study are in the form of five layers with different resistivity values and with a relatively small RMS error value of 1.15.
Groundwater Identification at East Sentani Auwena Formation (Tema) Based on Geoelectric
Authors: Virman  , Massinai Muhammad Altin , Ismullah Massinai Muhammad Fawzy 
Published: September 2019

Abstract
Jayapura City, Papua Province today is preparing to host the National Sport Week (Pekan Olahraga Nasional – PON in Indonesian) 2020 to be held here. For this event, on East Sentani District will build international swimming pool, football stadium and other facilities by government or private. This public facility needs fresh water source to come in useful as maximally. Fresh water from water local company is limited so the best solution is using groundwater. Groundwater is renewable resources, its volume and quality is influenced by vegetation, rainfall, slope, rock surface and others. This existence on subsurface can different based on geological conditions. For this issue, research did to identify groundwater potential on this area. This research used geoelectric 1D resistivity method, Schlumberger configuration. The acquisition held at three places: Kampung Kemiri, Kampung Harapan and Kampung Ifar Gunung. Data processing used IPI2win software, result is resistivity which is explaining lithology and depth. Based on resistivity distribution that groundwater located at Kampung Kemiri on depth 28.6 m with resistivity 81.1 ohm.m and at Kampung Harapan on depth 18.9 m with resistivity 8.9 ohm.m.
Detection and Delineation of Shallow Channel Morphology Using 3D Seismic Data in the K Field, Malay Basin, Malaysia
Authors: Hamsan Nur Hazira , Mansor Md Yazid , Kiat Liaw Kim 
Published: September 2019

Abstract
The Malay Basin early 2D seismic exploration programs were designed to test simple structural traps. Large relief folds are easily located and subsequently drilled. Many major oil and gas fields were discovered since the 1970s in middle-late Miocene siliciclastic reservoirs, and eventually produced successfully. However, these easy hydrocarbon accumulations in the Malay Basin are fast depleting due to its long production history. Hence, new petroleum plays are urgently needed to sustain the production. The utilization of high-resolution 3D seismic data in the early 2000’s has greatly increased the chance of drilling success, including high-risk prospects such as stratigraphic plays. This paper discusses the subtle channel morphology in the shallow section of the K Field. The 3D seismic data shows multiple-stacked channel geometry within the Pliocene (5.5-5.2 Ma) strata. The seismo-stratigraphic interpretation is aided by attributes analysis including horizon probe to detect and delineate the internal geometries. The results are correlated with modern analogues to predict the probable depositional elements within these fluvio-marine systems. These shallow channel features were previously avoided as hazardous drillings. Instead, until they are tested, these could be considered as good porosity clastic reservoirs filled by medium to heavy density oil.
Hydrologic cycle of moist air in the lower atmosphere
Authors: Rahmawati D , Suriamihardja D A , Assegaf A H , Samad B A 
Published: September 2019

Abstract
A hydrological cycle in the atmosphere plays an important role in the Earth system. [1] The hydrological cycle in the atmosphere is a source of fresh water for life on earth. Starting from the density of heavy water, it is converted into a mild vapor density which allows an increase in water vapor from the sea surface to the dew point where the process of changing water vapor into liquid phase can take place. An atmospheric machine is represented by a modified Carnot cycle below water dome containing mixed water vapor and liquid in an atmospheric layer. This study aims to learn changes in thermodynamic parameters, such as heat and work during the moist air experiencing thermodynamic processes and the correlation of temperature and humidity to rainfall. Basic information recorded by radiosonde is used as mixed water vapor and liquid parameters representing an initial atmospheric condition in producing fresh water. The results will provide information required to figure out the process of evaporation and condensation in the troposphere and the relationship between temperature and humidity to rainfall.
Study of Climate Determination Analysis Based On Pallontara / Papananrang and Rainfall Opportunities in Sidrap District
Authors: Yassi Amir , Kaimuddin  , Bahrun Abdul Haris , Sahur Asmiaty 
Published: September 2019

Abstract
Climate change is shown by the increasing imbalance in the amount of water in the dry season and rainy season. Thus, people experience water shortages in the dry season and floods in the rainy season, thus disrupting all schedules and cropping patterns which result in crop productivity decreasing until the harvest. Often the results of observations via satellite or meteorological instruments by the Agency for Meteorology and Geophysics are opposite in issuing a forecast of seasons with pallontara and papananrang in determining the weather / climate conditions that will occur. So that the results of these different forecasts can cause panic in planning agricultural development programs in the following year, no wonder the planning of agricultural development programs at the central level is often also out of sync especially in the timing (season) Estimates of the season that will occur in a year can be determined from the results of the scavenger gathering (meetings of civil servants, stake holders, researchers and universities). Specific objectives of the study to obtain a description of next year’s climate forecast indicators are determined by several variables used pallontara and as a comparison analysis rainfall from several years. The results of the study that some indicators used by Pallontara in predicting climate are based on Islamic calendar, astronomical factors, behavior of organisms, observation of vegetation and observations of the moon. Whereas as a comparison used monthly rainfall data from several Sidrap Regency stations.
The dynamic system analysis of lemuru fishery in Bali strait by using biological parameter yield of some surplus production models
Authors: Tinungki Georgina Maria , Sirajang Nasrah 
Published: September 2019

Abstract
Stock assessment in any fisheries scientific study is an effort to determine the productivity of fishery resource, the effect of catch on resources and changes in catch patterns, for example due to implementation of management and development policies. It involves 3 (three) main aspects: the first, determine total biomass by using surplus production model; the second, determine recruitment (the number of fish that has reached the age during one recruitment season) can use Ricker model; the third, determine the equation of growth in the fishery can use Von Bertalanffy model. Mathematical models are mostly used to describe the dynamics of fish populations. In the use of appropriate models in stock assessment will result in a more appropriate basis in selecting fishing methods and advanced analysis of catches, hence required a plan in the sustainable management and utilization of fish resources. The study of sustainable dynamic of lemuru fisheries management in Bali strait is the dynamics of biomass of lemuru fishery by using the biological parameters yield of some surplus production models. By obtain the biological parameter values r, q and K, we obtain the dynamic trajectory between biomass and time, indicates that at the first year of observation, the biomass level is relatively high, but when several years later the biomass tends to decrease until it reaches the stable of biomass obtained for about 30 years and so on (t > 30).
Research on the causes of smog and the effect of spatial spillover
Authors: Li Wenxia , Zhou yaodong 
Published: September 2019

Abstract
This paper uses the method of spatial measurement to explore the interaction of smog pollution between local and remote areas in 31 provinces in China and the impact of economic changes. Global spatial correlation analysis shows that there is significant spatial positive correlation of smog pollution, and local spatial correlation shows that the high concentration of pollution is distributed in Beijing-Tianjin-Hebei and adjacent Shandong, Henan, Liaoning, based on environmental Kuznet The curve (also known as the EKC curve) found that smog pollution is closely related to the growth of the main business income, and the inverted U-shaped relationship between smog pollution and economic growth does not exist or has not yet appeared. That is to say, with the growth of the main business, the pollution level is rising continuously. The comprehensive empirical analysis shows that the spatial spillover effect of smog pollution is particularly obvious. The high pollution concentration area is affected by the neighboring areas, and it is difficult to obtain all the benefits from the implementation of environmental regulation. It is imperative to control smog and strengthen inter-regional joint defense.
Research on Key Technologies of Green Road Environmental Protection House-Keeper in Urban Areas
Authors: Yue Weijie , Lu Hui , Chen Chao , Li Zhengkai , Wang Zhaoming 
Published: September 2019

Abstract
Under the background of rapid promotion of green highway construction, while highway construction pursues efficiency, quality and engineering durability, environmental protection has been raised to a very important level. Taking the Huadu-Dongguan expressway as the research object, this paper explores the key technologies of environmental house-keeper under the concept of urban green highway. From the innovation of environmental management technology system, the improvement of technical means and the application of unmanned aerial vehicle remote sensing, the establishment of urban environmental protection manager index system, so that the expressway in the construction period of environmental protection to achieve construction dust, noise control.
Research and Application of Gas Pipeline Planning and Balance Technology of Urban Green Highway
Authors: Lu Hui , He Qinghua , Yue Weijie , Chen Chao , Li Zhengkai , Wang Zhaoming 
Published: September 2019

Abstract
Under the background of rapid promotion of green highway construction, while highway construction pursues efficiency, quality and engineering durability, environmental protection. In addition to environmental problems such as noise and dust, urban green highways also face special problems such as pipeline balance, relocation and construction organization. This paper taking Huadu to Dongguan highway as the research object. The author analyses the layout of electric power, water conservancy, network and even military network, puts forward the plan and examines the problems existing in the construction. Finally, the planning and construction drawing design were carried out, and the pipeline movement, change and balance technology were successfully applied.
Shape of the Equilibrium Profile of Watercourse Based on Theory of Minimum Energy Dissipation
Authors: Baowen Yan , Xianwen Li , Songbai Song 
Published: September 2019

Abstract
There is certain orientation in the development of the fluvial geography, because the process is controlled by the Theory of Minimum Energy Dissipation. According to the theory of entropy and take equilibrium profile of watercourse as example, this paper discussed the theoretical shapes of the fluvial geography after analyzing the mathematics innate character of Theory Minimum Energy Dissipation. Studying result shows that the equilibrium profile of all watercourses should be a cycloid line. Thus point out a new thinking method to the study of the unity of topography in fluvial geography.
The three-dimensional numerical analysis of the impact of newly Seawall with inner epeirogenic through blowpipe to adjacent pile foundation of bridge
Authors: Chuan Zhan , Yannan Shi , Xiongwei Wu 
Published: September 2019

Abstract
The internal force and deformation of the adjacent bridge pile foundation is influenced by newly Seawall with inner epeirogenic through blowpipe, which may endanger the normal operation of the bridge. Using Plaxis3D software in this paper, the subsoil is used by the Hardening Soil model, and analysis the mechanism of the influence of bridge pile foundation by the newly Seawall with the inner epeirogenic through blowpipe when the distance between Seawall and bridge is changed from 200m to 250m, 300m, 350m and so on, which provides reasonable safety distance between the Seawall and bridge. The analysis results show that the vertical displacement and internal force of bridge pile foundation is less affected by the newly Seawall with the inner epeirogenic through blowpipe, which will not affect the bearing capacity of the bridge pile foundation. However, the horizontal displacement of pile foundation of the bridge is greater influenced by newly Seawall with the inner epeirogenic through blowpipe, which will affect the normal operation of the bridge. As long as reasonable rate is controlled by epeirogenic through blowpipe, the max horizontal displacement of pile foundation can meet the design requirements when the distance is 300m between Seawall and bridge.
Effect of Environmental Factors on Dirt Retention of Composite External Insulation Equipments
Authors: Chao Yafeng , Zhang Liu 
Published: September 2019

Abstract
In order to study the influence of the environment on the dirt retention characteristics of composite external insulation equipments, 43 composite insulator samples were sampled and measured at 32 sampling points of 12 lines of 110-500kV and DC ±500kV lines. The test results show that the mean value of ESDD in the sampling area is 0.060 mg/cm2, and the mean value of NSDD is 0.446 mg/cm2. It is found that The holistic dirt retention in industrial and mining areas is more serious than that in other sampling environments, and the dirt retention difference of composite insulators in different areas is large, which may be related to such factors as geographical environment, pollution time, climate, meteorology, industrial structure and economic development.
Design and Implementation of Super-station Measurement and Control Software
Authors: OuYang Wen , Wang Ancheng , Jiang Lixing , Gu Youyi , Li Chenyang 
Published: September 2019

Abstract
Measurement and control software of super-station is the core part of super-station and it is also the important part of realizing super-station function. Aiming at the functional characteristics of the super-station, this paper designs the measurement and control software of the super-station and implements it by programming, focusing on the three aspects of the design requirements of the super-station. The interface connection between the measurement and control software and each unit of the super-station is solved in the design. In the aspect of the realization of measurement and control function, the design scheme and flow chart are defined, and the control instruction analysis and interface design are carried out. In the database module, by transplanting FATFS file system, the operation of adding, deleting, modifying and checking measurement data can be realized in the form of files. Finally, we summarize the main work and shortcomings of the design.
Summary of landscape pattern research
Authors: Li Qi , Xiao Xie 
Published: September 2019

Abstract
With the development of landscape ecology in China, the landscape pattern has been studied as a hot spot and a core issue. The concept of landscape and the development of landscape pattern research reflect the deepening of scholars’ understanding of the relationship between nature and people. This paper first briefly introduces the concept of landscape pattern, and attempts to explore the development history of the concept of landscape from horizontal and vertical. The development of the research on landscape pattern in China is summarized from the publication years, research methods and publications. This paper analyzes and discusses the research progress of landscape pattern theory and its application in different fields, and puts forward its research hotspots and development trends, which provides reference for future research of Chinese scholars.
Shipping Density Assessment Based on Trajectory Big Data
Authors: Dai Zeyuan , Zhang Lihua , Jia Shuaidong , Pang Hengxiu 
Published: September 2019

Abstract
Due to the current shortage of maritime shipping density assessment methods, a method of shipping density assessment based on trajectory big data is proposed. Firstly, in order to obtain the trajectories following the actual situation, the AIS data is pre-processed. Secondly, as the minimum calculation unit, the grid is constructed, and the shipping density assesses evaluation index is established by comprehensively considering among the travel time, information transmission and the number of vessel crossing grids. Finally, with the proposed evaluation index, the shipping density is assessed quantitatively. The experimental results show that the proposed method can characterize the maritime shipping density and provide a new solution for maritime traffic situational awareness.
Discussion on the Application of Water Acoustic Instrument in Port Dredging
Authors: Sun Chao , Wang Nan 
Published: September 2019

Abstract
The measurement and dredging of sediments in ports and waterways is increasing. The most common and cost-effective method for detecting the structure and properties of underwater sediments is to use acoustic principles to detect them. In this paper, the principle of shallow depth profiler and multi-beam sounding system is introduced. The principle of acoustic sounding instrument in dredging measurement is introduced. The feasibility and application scope of such acoustic instrument in port dredging measurement are discussed.
The Informational Dynamic Design and Construction Technology Application in the Soft Rock Tunnel
Authors: Zheng Jinming , Xie Fengyu , Bai Youliang 
Published: September 2019

Abstract
Informational dynamic design and construction technology are emerging new technologies at home and abroad. There are many applications in deep foundation pit stability, side slope stability, tunnel engineering and bridge engineering. This paper takes the West Qinling soft rock tunnel as an example to discuss engineering pre-design, construction and information collection, and pre-design modifying. Finally, this paper lists some problems in the construction of the soft rock tunnel project.
A Recognition Method of Ring Pattern in Road Networks Based on Graph Theory
Authors: Cui Xiaojie , Gong Xianyong , Zhang Qi 
Published: September 2019

Abstract
As a kind of typical structural knowledge, the spatial pattern is important to cartographic generalization, multi-scale representation, and spatial data matching. In an urban road network, the global ring is a common pattern, which represents a closed, circular ring that surrounds the city center. To overcome the deficiency in multi rings recognition, a two-step method for global ring patterns is developed in this paper. Preliminary rings are extracted based on the angle and deflection side of the connected road segments. Moreover, global rings are selected from the preliminary rings based on the index of compactness. Simulated and actual road network data are used to validate the proposed algorithm. The results show that the proposed algorithm is capable of recognizing global rings with multi-layer conditions in urban road networks
Time-Frequency Analysis and Identification method for weak Magnetic signal of Submarine in aeromagnetic Detection
Authors: Liu Zhanxin 
Published: September 2019

Abstract
As an important strategic weapon, submarine detection is very difficult. Aeromagnetic detection is one of the main detection methods, but there are some problems such as complex measurement environment and difficult recognition of target magnetic signals. To solve this problem, wavelet threshold denoising is used to suppress magnetic noise, and WVD is used to analyze the magnetic signal in time and frequency to improve the recognition ability of the unexploding target magnetic signal. The simulation results show that this method is feasible.
A New Dynamic Emissivity-retrieval Scheme Based on Wavelet Atlas Constraints and Its Application into Land Surface Satellite Data Assimilation
Authors: Huang Qunbo , Yan Yan , Luo Yu , Wang Weifeng , Liu Bainian , Zhang Weimin , Xing De 
Published: September 2019

AbstractAccurate description of surface information, including land surface emissivity, is a prerequisite for assimilating satellite observations over land. In this study, we used an emissivity atlas, essentially an image matrix containing noise from unknown sources, to improve the assimilation of observational data. First, we proposed a wavelet method for advanced image processing to denoise the emissivity atlas and developed a wavelet emissivity atlas suitable for the temperature sounder onboard the Chinese FY-3C satellite. Second, based on a real-time pixel dynamic emissivity retrieval scheme and using the wavelet atlas as the constraint set, we constrained dynamic retrieval emissivity values to eliminate retrieval errors. Finally, we designed and optimized a new assimilation system that can successfully utilize low-level microwave sounding channels of the FY-3C satellite. The results showed that the first-guess departures of the middle- and low-level channels were significantly improved as a result of the improved surface emissivity values. Compared with the emissivity atlas scheme, over-land observational data of the middle- and low-level channels could be increased by approximately 4–8%. Moreover, the addition of a large amount of new observational data did not negatively affect the analysis fields but rather improved short-term prediction results.