Multisphere Representation of Convex Polyhedral Particles for DEM Simulation by Qiang Zhang, Chaojun Jia, Jun Yu, Jiawen Zhou

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Quaternary tracking of the Basin changes (Case Study: Ghezel Ozan) by Hassan Jafari, Fatemeh Bakhtiyari

“…The past topographic situation and the main processes of glaciers in cold Quaternary, has made different lakes near Ghale Chay River. Pari Lake is an obvious example. However nowadays it is irrigated by an artificial channel ramified by Ghale Chay River.…”
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Occurrence, Source, and Mobilization of Iron, Manganese, and Arsenic Pollution in Shallow Aquifer by Md. Shajedul Islam, M. G. Mostafa

“…In addition, the frequent fluctuation of river flow, excess water mining, and an unbalanced recharge/discharge ratio are the causes of higher concentrations of both metals. …”
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Factors Affecting the Mechanical Properties of Cement-Mixed Gravel by Chen Wang, Wentao Li

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Geografia das colônias agrícolas no médio rio Amazonas, município de Urucará-AM by Arenilton Monteiro Serrão, Manuel de Jesus Masulo da Cruz

“…The social subjects in which we deal in this research, the settlers, peasants historically constituted in the floodplains of the middle Amazon River, especially in the municipalities of Urucará, Parintins and Urucurituba. …”
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Research on Spatiotemporal Evolution and Driving Factors of Extreme Climate in Guangdong-Hong Kong-Macao Greater Bay Area by GUO Shan, ZHANG Dawei, WANG Yadi

“…In recent years,frequent extreme climate events have become the focus of attention of the world.Studying the spatiotemporal evolution of extreme climate in the Guangdong-Hong Kong-Macao Greater Bay Area is of great significance for timely and accurate disaster prevention and mitigation forecasts and early warnings.On the basis of the precipitation and temperature data from 1961 to 2016,this paper uses the heuristic segmentation method,Mann-Kendall trend test,and cross wavelet method to analyze the spatiotemporal evolution of extreme climate in the Guangdong-Hong Kong-Macao Greater Bay Area and its relationship with driving factors.The results reveal that extreme precipitation and temperature changes are potentially related to sunspots and large-scale circulation factors including the multivariate ENSO index (MEI) and interdecadal Pacific oscillation (IPO),but their effects on extreme climate are different.Climate change will continue to profoundly affect urban construction and development.For future studies on the climate change in the Guangdong-Hong Kong-Macao Greater Bay Area,attention should be paid to the impact assessment of climate change in the Pearl River Basin and typical regions,and the research on the occurrence mechanism,risk assessment,countermeasures of extreme weather in the basin should be strengthened to reduce the damage of extreme climate events.…”
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Postpartum Vaginal Blood Loss following Two Different Methods of Cervical Ripening by Okon Asuquo Okon, John Egede Ekabua

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Laboratory Evaluation of Time-Domain Reflectometry for Bridge Scour Measurement: Comparison with the Ultrasonic Method by Xinbao Yu, Xiong Yu

“…TDR method, with the developed analysis algorithm, yields information on the river properties such as the electrical conductivity of river water and the density of sediments. …”
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Integrated Resistivity and Ground Penetrating Radar Observations of Underground Seepage of Hot Water at Blawan-Ijen Geothermal Field by Sukir Maryanto, Ika Karlina Laila Nur Suciningtyas, Cinantya Nirmala Dewi, Arief Rachmansyah

“…We have successfully identified that the underground seepage of hot water in Blawan geothermal field is following the fault direction and river flow which is evidenced by some hot spring along the Banyu Pahit river with resistivity value less than 40 Ωm and medium conductivity.…”
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Numerical Simulation of the Effect of Long-Term Reclamation on the Flow and Sediment Concentration in Binhai Port,Yancheng by ZHU Siyu, LU Dan

“…Binhai Port is located at the most obvious corrosive coastline of the abandoned Yellow River delta in the north of Jiangsu Province,where the near-shore wave and flow dynamic is strong,the sediment movement is relatively active,the underwater terrain is complex and the slope erosion is obvious.Based on the measured hydrological and sediment data and a two-dimensional mathematical model for wave,tidal current and sediment,this paper quantitatively analyzes the influence of the long-term reclamation project on the flow and sediment concentration in the study area and the surrounding estuary,and emphatically discusses the back silting characteristics and deposition causes of the 300 000-ton channel during normal and rough weather.The results show that:After the implementation of the reclamation project,the flow and sediment characteristics of the study area don't change in a large scale,and mainly the flow and sediment near the project site is affected.The sediment is deposited after the channel dredging and a sediment deposit centered at the area with peak sediment concentration is formed in the channel,with decreasing deposition thickness to the port and outer sea channel.During rough weather,the maximum deposition thickness can reach 8~24 times of that in normal weather,but it is less than 0.2 m/d and there is no sudden silting and navigation blocking.…”
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DEGRADACIÓN DE TIERRAS Y TELEDETECCIÓN EN PLANICIES PRÓXIMAS A LA LOCALIDAD DE CENTENARIO, PROVINCIA DE NEUQUÉN by Luis Bertani, Oscar Peña

“…The study area comprises the old river terraces of Neuquén River, from a Pleistocene age, which have a sandy mantle that covers them, which usually constitutes the horizon where the soils that allow the development of a xeric vegetation, typical of the arid environments, in the eastern part of the Neuquén Province. …”
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Applicability Analysis of Machine Learning Model in Hydrological Forecasting in Karst Areas by ZHAO Zejin, SUN Wei, ZHOU Bin, ZHANG Xuan, WANG Gaoxu, WU Wei, LI Wenjie, YAO Ye

“…For hydrological forecasting in karst areas,existing research mainly uses hydrological models based on physical mechanisms,while rare research focuses on machine learning models.To explore the applicability of machine learning models in karst areas, this paper utilizes the LSTM model and random forest model to simulate the daily runoff and field floods at Tangdian hydrological station,using the Shadian River basin in Yunnan Province as the study area.The modified Xin'anjiang model for karst areas is taken as a reference.The results show that both the machine learning model and the modified Xin'anjiang model have achieved good results in simulating the daily runoff process, with the LSTM model showing better simulation results.In the simulation of floods,the modified Xin'anjiang model achieves Class A forecast accuracy.The machine learning models have better forecast results for the 6-hour forecasting period than the modified Xin'anjiang model,while the forecast results for the 24-hour forecasting period do not meet the accuracy requirements of the forecast operation.The study provides a reference for hydrological forecasting in karst areas by studying the characteristics and forecasting accuracy of two machine learning models and a hydrologic model.…”
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Investigation of atmosphere middle level changes center affecting on dry day of Zab catchment using PCA by nader parvin

“…In this study, the annual rainfall data for selected stations Zab River Basin during the period 2015-1986 were the standard time. …”
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Efficacy of Tuohy Needle in Oocytes Collection from Excised Mare Ovaries by F. Cremonesi, K. Anderson, A. Lange-Consiglio

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The Impact of Breakwater Type on Hydrodynamic Environment in Semi-Closed Harbor by WU Qiong, LI Mugui, LUO Huan

“…Affected by breakwater construction,the water exchange of semi-closed harbor is often not smooth,and the self-purification ability is weak.To study the influence of different types of breakwater on the hydrodynamic environment in semi-closed harbor,the article took a typical semi-enclosed port in the Pearl River estuary,Xiangzhou fishing port as an example to analyze the differences of water exchange ability and the transport law of pollutants under the layout scheme of breakwater with opening width including 20、40、60、100 m.The results showed that,compared with the fully closed breakwater scheme,under the scheme of opening width of 20、40、60、100 m,the half exchange period of water in the harbor increased by 5.0 hours,11.0 hours,14.0 hours and 14.5 hours.The scheme with opening more than 40m was better than 20 m.However,there was no significant difference in the effect of the three schemes of opening 40、60、100 m.Considering the influence of regional pollution source input,under the scheme of breakwater opening,the concentration of inorganic nitrogen increased by 0.2~0.4 mg/L in the area near the opening.It further aggravated the pressure of inorganic nitrogen pollution in the northern part of the harbor,while the quality of water environment in the southern part of the harbor was improved due to the enhancement of water exchange ability.…”
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Emerging Technologies and Generic Assays for the Detection of Anti-Drug Antibodies by Michael A. Partridge, Shobha Purushothama, Chinnasamy Elango, Yanmei Lu

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Modeling viscosity of commercial glass melts: Adam–Gibbs equation and Gaussian process regression by Pavel Ferkl, Preeti Malviya, Pavel Hrma, Albert A. Kruger, Ashutosh Goel

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KAJIAN IDENTIFIKASI POTENSI DAN PERMASALAHAN SUMBERDAYA AIR by ASEP HARIYANTO, K. HERRY ISKANDAR

“…Based on the results of the analysis has been done, can know the potential water resources are owned Belitung Regency include: watershed and river discharge that has a large enough reliable; under-mined under the savings used as raw water sources as ponds that use river water reservoir and water rain; and groundwater. …”
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Two- and Three-Dimensional Culture Systems: Respiratory In Vitro Tissue Models for Chemical Screening and Risk-Based Decision Making by Joanne Wallace, Mary C. McElroy, Mitchell Klausner, Richard Corley, Seyoum Ayehunie

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Retrospect and Prospect of Existing Problems and Scientific Planning in Macau Marine Space by YANG Jing, SHUI Bing, NI Mingxuan

“…The Macao Special Administrative Region is located at the outlet of the Pearl River.It is a typical beach land.It has expanded from 2.78 km² in 1840 to more than 32 km² at present.All the land is reclaimed from the sea.It is one of the regions with the highest proportion of land reclamation in the world.By reviewing the history of land reclamation in Macao Special Administrative Region,examining the current situation of water quality and excavating the existing problems of sea area development,this paper puts forward that it is necessary to establish a unified administrative structure in charge,strengthen pollution control,improve rain and sewage diversion treatment and discharge capacity,establish a pollution discharge permit system,promote regional legal cooperation and linkage law enforcement,and build a data platform.To achieve multi-party data fusion and other measures,so as to realize the advance planning of the sea area and scientific decision-making,so as to generate into the sea,improve the disaster resistance capacity of flood control and moisture-proof in the Macao Special Administrative Region,and better serve the development of the sea area and diversified economic construction of the Macao Special Administrative Region.…”
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