Multiscale Fracturing in Medium- to Low-Rank Coals and Its Implications on Coalbed Methane Production in the Baode Area, Eastern Ordos Basin, China by Wei Zhang, Baoshan Zhao, Qingfeng Zhang, Jikun Zhang, Ziling Li, Xiaoguang Sun, Mingming Yan

“…Some of the fractures are filled with carbonate and clay minerals and are beneficial for methane migration, caused by hydraulic fracturing. The average mercury withdrawal efficiency of the coals was 75%. …”
Get full text

Facies distribution, sequence stratigraphy, and reservoir quality of the Oligo-Miocene carbonate sequences (Asmari formation) in the Dezful embayment, SW Iran by Hamed Sadeqi, Mohsen Aleali, Ali Kadkhodaie, Mehran Arian

“…In addition, three third-order depositional sequences (sequences 1, 2, and 3) have been recognized through the Asmari Formation in the Haft-Kel Oil field that is well correlated with sequences IV, V, and VI proposed by van Buchem et al. (2010), respectively. Using the Hydraulic Flow Unit (HFU) concept, six rock types have been identified for the Asmari reservoir. …”
Get full text

Experimental Study on Damage and Failure of Coal-Pillar Dams in Coal Mine Underground Reservoir under Dynamic Load by Qiangling Yao, Liqiang Yu, Ning Chen, Weinan Wang, Qiang Xu

“…The stability of coal-pillar dams in underground hydraulic engineering works is affected not only by long-term water erosion but also by dynamic loading induced, for example, by roof breaking or fault slipping. …”
Get full text

Waste Foundry Sand as Permeable and Low Permeable Barrier for Restriction of the Propagation of Lead and Nickel Ions in Groundwater by Ayad A. H. Faisal, Zaid Abed Al-Ridah, Laith A. Naji, Mu. Naushad, Hamed A. El-Serehy

“…Measurements signified that the hydraulic conductivity of WFS was 3.8 × 10−7 cm/s which satisfies the requirements of LPB. …”
Get full text

An Experimental Study on the Basic Mechanical Properties and Compression Size Effect of Rubber Concrete with Different Substitution Rates by Yanli Hu, Xuewei Sun, Aiqun Ma, Peiwei Gao

“…An experimental study was carried out on the uniaxial compression, uniaxial splitting, pure shear, and compression size effect of rubber concrete with 5 different substitution rates by applying hydraulic servo and direct shear apparatus. Then, by comparing the failure modes and ultimate strength eigenvalues of rubber concrete under different loading conditions, the following conclusions were drawn: with the increase of rubber substitution rate, the concrete specimens maintain a relatively good integrity under uniaxial compressive failure; on the contrary, the failure sections under uniaxial slitting and pure shear gradually become uneven with an increasing amount of fallen rubber particles. …”
Get full text

Investigations on Free Span Rectification for a Submarine Pipeline on Sand Wave Seabeds by Xing Zou, Botao Xie, Xuechun Bai, Yuanyuan Guo, Qingqing Yuan, Zhipeng Zang

Get full text

Spatial characteristics and critical groundwater depth of soil salinization in arid artesian irrigation area of northwest China by Cui Chang, Guiyu Yang, Shuoyang Li, Hao Wang, Yaomingqi Song

Get full text

Mechanisms for upstream migration of firn aquifer drainage: preliminary observations from Helheim Glacier, Greenland by Jessica Z. Mejia, Kristin Poinar, Colin R. Meyer, Aleah N. Sommers, Winnie Chu

“…Firn aquifers store meltwater and drain into wide crevasses marking the aquifer's downstream boundary, indicating water from firn aquifers can drive hydrofracture to establish surface-to-bed hydraulic connections at inland locations. Yet, sparse observations limit our understanding of the physical processes controlling firn aquifer drainage. …”
Get full text

A Typical Basalt Platform Landslide: Mechanism and Stability Prediction of Xiashan Landslide by Yongliang Huang, Zhiwei Sun, Chunyan Bao, Man Huang, Anyuan Li, Minghao Liu

“…Thus, tensile cracks are easily generated and developed, thereby causing the failure mode to be the hydraulic driving type. Also, with the increase in rainfall intensity, the slope plastic strain increases and the slope plastic zone develops and extends until it is completely penetrated. …”
Get full text

Studies on Hydration Swelling and Bound Water Type of Sodium- and Polymer-Modified Calcium Bentonite by Yong Wan, Dongdong Guo, Xinminnan Hui, Lei Liu, Yuan Yao

“…Modified calcium bentonite (Ca-bentonite) is extensively used in engineered barrier systems (EBSs) for municipal and industrial disposal sites due to its high swelling potential and low hydraulic conductivity. However, few studies have focused on the micromechanism of hydration and swelling under the effect of inorganic chemical solution. …”
Get full text

Polymer Concentration and Solvent Variation Correlation with the Morphology and Water Filtration Analysis of Polyether Sulfone Microfiltration Membrane by Muhammad Azeem U. R. Alvi, Muhammad Waqas Khalid, Nasir M. Ahmad, Muhammad Bilal K. Niazi, Muhammad Nabeel Anwar, Mehwish Batool, Waqas Cheema, Sikandar Rafiq

“…The highest tensile strength of 29.15 MPa was observed using membrane prepared with 21% PES concentration in NMP as solvent and coagulation bath temperature of 25°C. The highest hydraulic membrane resistance was reported for membrane prepared with 21% PES concentration in NMP as solvent. …”
Get full text

Analysis of geological characteristics and potential factors of formation damage in coalbed methane reservoir in Northern Qinshui basin by Hongjian Wu, Xiangwei Kong

“…The fine particles generated from hydraulic fracturing are prone to transport through the coal seam while obstructing pore throats. …”
Get full text

Investigating the Relationship between Traffic Violations and Crashes at Signalized Intersections: An Empirical Study in China by Ze-Hao Jiang, Xiao-Guang Yang, Tuo Sun, Tao Wang, Zheng Yang

Get full text

Evaluating the Impacts of Discharging the Effluent of Al-Gabal Al-Asfar Wastewater Treatment Plant on Ismailia Canal in Egypt to Maximize Revenue and Ensure Sustainability by Marwa M Aly, Mohamed SM Zayed, Mahmoud S Salem, Mohamed K Mostafa

“…The optimal scenario was chosen according to the canal water quality post-injection following Article 49 of Law 92/2013, along with the hydraulic capacity of the canal's cross-section. The findings indicated that the fifth scenario (recycling 46% of the treated water, which amounts to 1.15 million cubic meters daily) is the optimal scenario for keeping the concentration of the studied parameters in the Ismailia Canal within the allowable limits and ensuring the canal’s cross-section remains hydraulically secure. …”
Get full text

A Triple-Masked, Randomized Controlled Trial Comparing Ultrasound-Guided Brachial Plexus and Distal Peripheral Nerve Block Anesthesia for Outpatient Hand Surgery by Nicholas C. K. Lam, Matthew Charles, Deana Mercer, Codruta Soneru, Jennifer Dillow, Francisco Jaime, Timothy R. Petersen, Edward R. Mariano

“…The primary outcome (change in baseline grip strength measured by a hydraulic dynamometer) was tested before the block and prior to discharge. …”
Get full text

High-resolution investigations of fault architecture in space and time by Leonardo Del Sole, Giulio Viola, Luca Aldega, Vincenzo Moretto, Manuel Curzi, Ruikai Xie, Luigi Cantelli, Gianluca Vignaroli

“…We demonstrate that high-resolution studies of fault architectures are required to elucidate modes of fault growth and evolution, decipher long-lived, polyphase tectonic and thermal histories, and understand the influence of heterogenous fault architecture on hydraulic compartmentalization and earthquake rupture dynamics.…”
Get full text

Effect of short basalt fibers on energy-dissipating properties of lightweight rubberized concrete shear wall by Artem Zaitsev, Evgenii Matiushin, Victoria Shvetsova, Alexander Burukhin, Stepan Konev, Radmir Karamov, Skolkovo Institute of Science and Technology, Moscow – 121205, Russia.

“…To acquire the mechanical and dynamic properties of the material, hysteresis loops were obtained from 1000 cycles of compression fatigue tests under 0.1 and 0.05 strain rates on a servo-hydraulic machine through quasi-static laboratory tests. …”
Get full text

DEVELOPMENT AND ADAPTATION OF VORTEX REALIZABLE MEASUREMENT SYSTEM FOR BENCHMARK TEST WITH LARGE SCALE MODEL OF NUCLEAR REACTOR by S. M. Dmitriev, A. E. Khrobostov, A. A. Barinov, V. G. Glavny

“…The last decades development of applied calculation methods of nuclear reactor thermal and hydraulic processes are marked by the rapid growth of the High Performance Computing (HPC), which contribute to the active introduction of Computational Fluid Dynamics (CFD). …”
Get full text

An analytical study for predicting incipient motion velocity of sediments under ice cover by Hongchun Luo, Honglan Ji, Zijian Chen, Bin Liu, Zhongshu Xue, Zhijun Li

“…The study reveals that the roughness of ice cover significantly influences the incipient motion velocity of sediment, with higher ratios of ice cover roughness to riverbed roughness promoting sediment initiation under more favorable hydraulic conditions. Furthermore, the riverbed beneath ice jams experiences significant scouring. …”
Get full text

Study on Presplitting Blasting the Roof Strata of Adjacent Roadway to Control Roadway Deformation by Xiaojie Yang, Chaowen Hu, Manchao He, Haohao Wang, Yubo Zhou, Xiaoyu Liu, Enze Zhen, Xingen Ma

“…Based on in situ measurements and tests, by presplitting blasting the roof strata of the adjacent roadway, the maximal value of the working resistance of the hydraulic support in the presplitting blasting side of the working face decreased by 24.9%, and the average volumes of the maximum floor heave, the maximum roof subsidence, and the maximum ribs displacement were reduced by 50.1%, 34.9%, and 41.7%, respectively. …”
Get full text