Fractal Characteristics of Pore Throat and Throat of Tight Sandstone Sweet Spot: A Case Study in the East China Sea Basin by Wenguang Wang, Chengyan Lin, Xianguo Zhang

“…HPMI and NMR techniques were used to evaluate the full-size PTR distribution of type I (TI), type II (TII), and type III (TIII) sweet spots. Based on fractal theory, CRMI was used to calculate the fractal dimension of the PTR and throat radius of three types of sweet spots, and the relationship between the fractal dimensions and pore throat structure parameters and mineral composition were investigated. …”
Get full text

Fabrication of a low-kink-radius bilayer vascular scaffold incorporating a TPU stent fabricated via melt electrowriting and an electrospun PCL/PU/gelatin layer by Mohammad Shahverdi, Hossein Shaygani, Mohamadreza Soltani, Kayvan Dadkhah, Seyed Mohammad Hossein Rezaei Demneh, Kaivan Mohammadi, Amir Shamloo

Get full text

In-situ experiment on critical thickness of brittle-ductile transition of single-crystal silicon by LIU Bing, XU Zong-wei, LI Rui, HE Zong-du

Get full text

Comparative evaluation of the cyclic fatigue resistance of four Ni-Ti instruments in simulated root canal curvatures using CAD/CAM technology by Tuğçenur Yıldız, Recai Zan

“…In the DC group, WOG also showed the lowest NCF (p < 0.05), with no significant differences among the other three files (p > 0.05). SEM analysis revealed that nearly all fractured instruments exhibited a ductile fracture pattern, characterized by the presence of microcavities and pits, which are typically associated with cyclic fatigue failure. …”
Get full text

Pore connectivity evaluation and seepage characteristic of ultra deep carbonate reservoirs of permian Qixia formation in NW Sichuan basin by Hao Lu, Zike Ma, Hu Li, Penglei Yan, Xian Liu, Jiale Liu, Cheng Ma, Bo Kang, Boning Zhang, Yulong Zhao, Liehui Zhang

Get full text

Comparative Assessment of Tool Wear and Surface Topography After Superfinish Turning of Inconel 718 with Carbide and Ceramic Inserts by Piotr Szablewski, Stanisław Legutko, Nicolae Ungureanu, Jana Petru, Krzysztof Smak, Bartłomiej Krawczyk

Get full text

Elastoplastic and fracture behaviour of semi-crystalline polymers under multiaxial stress states by Joao Pedro Manaia, Abílio M.P. Jesus, Francisco A. Pires

Get full text

The potential of Ti3C2Tx-KH2PO4 and Ti3C2Tx-chitosan in the efficient removal of cesium from nuclear wastewater by Shanli Nezami, Ahad Ghaemi, Taher Yousefi

“…Abstract Ti3C2Tx is synthesized from Ti3AlC2 by two common methods, HF and HF in situ. …”
Get full text

Synthesis and Study of the Structural, Optical and Photocatalytic Characteristics of V2O5/TiO2 Nanocomposites by Т.A. Khalyavka, S.V. Camyshan, N.N. Tsyba, S.N. Scherbakov

Get full text

The correlation between friction coefficient and areal topography parameters for AISI 304 steel sliding against AISI 52100 steel by Deepak K. Prajapati, Mayank Tiwari

“…Experiments are carried out using a pin-on-disc tribometer under dry friction condition. The areal (three dimensional, 3D) topography parameters are measured using a 3D white light interferometer (WLI) with a 10× objective. …”
Get full text

Investigation of mechanical properties in PLA, ABS and epoxy resin parts fabricated by 3D printing technology by Amirhosein Ghaznavi Youvalari, Javad Alizadeh Kaklar, Mahboube Mohamadi

“…Finite element analysis (FEA) was employed to calculate the maximum von Mises stress at the notch root, demonstrating that the 0.3 mm notch root radius approached a sharp notch and resulted in a substantial effect on stress concentration. …”
Get full text

Comparison of High-Efficiency MgO/Na₂CO₃ and MgO/K₂CO₃ as Heterogeneous Solid Base Catalysts for Biodiesel Production from Soybean Oil by Xiangyang Li, Xunxiang Jia, Weiji Li, Shufan Jia, Siwei Zhang, Jiliang Song, Jiao Wang

“…By regulating the calcination temperature (500–700 °C), alcohol-to-oil ratio (3:1–24:1), and metal carbonate loading (10–50%), combined with N₂ adsorption–desorption, CO₂-TPD, XRD, SEM-EDS, and cycling experiments, the regulatory mechanisms of the ionic radius differences between sodium and potassium on the catalyst structure and performance were revealed. …”
Get full text

Raw dataset of tensile tests in a 3D-printed nylon reinforced with oriented short carbon fibersMendeley Data by Ênio H. Pires, João V. Barreto Netto, Marcelo L. Ribeiro

“…This dataset presents the results of tensile tests conducted on 3D-printed nylon composites reinforced with short carbon fibers, commercially known as Onyx™. …”
Get full text

Pore-Throat Structure, Fractal Characteristics, and Main Controlling Factors in Extremely Low-Permeability Sandstone Reservoirs: The Case of Chang 3 Section in Huachi Area, Ordos B... by Huanmeng Zhang, Chenyang Wang, Jinkuo Sui, Yujuan Lv, Ling Guo, Zhiyu Wu

“…The average fractal dimensions for micropores (Dh2), mesopores (Dc3), and macropores (Dc4) are 2.43, 2.75, and 2.95, respectively. …”
Get full text

Parametric Design and Mechanical Characterization of a Selective Laser Sintering Additively Manufactured Biomimetic Ribbed Dome Inspired by the Chorion of Lepidopteran Eggs by Alexandros Efstathiadis, Ioanna Symeonidou, Emmanouil K. Tzimtzimis, Dimitrios Avtzis, Konstantinos Tsongas, Dimitrios Tzetzis

“…A parametric design algorithm was created with the aid of computer-aided design (CAD) software Rhinoceros 3D and Grasshopper3D in order to abstract and emulate the biological model. …”
Get full text

Studies of structural, optical, magnetic and dielectric properties of Sr0.7Bi0.2(Ti1-xZrx)O3 0.0 ≤ x ≤ 0.6 ceramics for wireless application by Inamullah, Asad Ali, Kashif Safeen, Salhah Hamed Alrefaee, Aiyeshah Alhodaib, Akif Safeen, Shaxnoza Saydaxmetova, Salah Knani, Ali Algahtani, Vineet Tirth, Abid Zaman

“…According to the X-ray diffraction patterns, the base sample is a member of the space group pm-3 m and has a cubic structure. Using a scanning electron microscope (SEM), the samples' surface appearance and average grain size (0.493–0.381 μm) were examined. …”
Get full text

Anion effect on obtaining nano-sized metal particules by reduction reaction by Sebati İlhan, Melda Bolat, Kadir Erol, Dursun Ali Köse

“…This work makes a research on the anion effects on the size mass nanoparticules of metals Cu(II), Ni(II), Co(II), Zn(II) and Mn(II) after reduction to nano size of sodium bor hidrur which belongs to salt of asetat and chlor, nitrate, sulfate. Depending on the radius ratios and solubility values of metal cations and anions, the nanoparticle obtained from Cu(CH3COO)2 salt has the smallest radius. …”
Get full text

Green chemistry assisted nanoscale synthesis and structural characterization of some transition metal cations by Mustafa Küyükoğlu, Melda Bolat Bülter, Dursun Ali Köse

“…Nano metal particles with the largest radius were obtained as a result of reduction from Co(NO3)2 salt. …”
Get full text

Study on the Coupling Law between Pore-Scale Fluid Flow Capacity and Pore-Throat Configuration in Tight Sandstone Reservoirs by Jie Gao, Hu Wei, Ran Zhou, Qiang Ren, Tao Tian, Bo Ning, Xiaojun Ding, Zhifeng Zhang

Get full text

Synthesis and characterization of poly(sodium-p-styrenesulfonate)/modified SiO2 spherical brushes by N. Su, H. B. Li, H. M. Zheng, S. P. Yi, X. H. Liu

“…The morphology of ASPB was characterized by Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). The core radius Rc and hydrodynamic radius Rh of ASPB measured by Zeta Potential/Particle Sizer (ZLS) were ca. 50nm and (84.5&#177;1) nm respectively. …”
Get full text