Role of F(Q,T) gravity with class one space-time in constructing new spherically symmetric stellar solutions by S.K. Maurya, J. Kumar, S. Chaudhary, A. Errehymy, O. Donmez, K. Myrzakulov

“…To solve Einstein's field equations and ensure that the solution is free of center singularities, a physically plausible selection of the metric coefficient grr is used. With the help of the Karmarkar condition, we compute the gtt component of the metric tensor using the metric coefficient grr. …”
Get full text

Effects of Aging on the Tensile Properties of Polyethylene Fiber-Reinforced Alkali-Activated Slag-Based Composite by Jeong-Il Choi, Se-Eon Park, Su-Tae Kang, Bang Yeon Lee

“…Test results showed that the compressive strength increased as the age increased. Although the first-cracking strength increased like the compressive strength, the increases of tensile strength and tensile strain capacity were not significant compared with those of compressive strength and first-cracking strength.…”
Get full text

Cyclic Behavior of Reinforced Concrete Slab-Column Connection Using Numerical Simulation by Goshu Kenea, Alemu Feyissa

“…Reduced eight noded bricks (C3D8R) and two noded trusses (T3D2) elements have been used for modeling concrete and steel, respectively. Cracking pattern, slab vertical deflection, strain distribution, ductility, load-drift ratio, cracking load capacity, yielding load capacity, and ultimate load capacity are the main outputs of the FE simulation. …”
Get full text

Understanding the effect of pre-sintering scanning strategy on the relative density of Zr-modified Al7075 processed by laser powder bed fusion by Nicolas Nothomb, Ignacio Rodriguez-Barber, María Teresa Pérez-Prado, Norberto Jimenez Mena, Grzegorz Pyka, Aude Simar

“…Unmodified Al7075 suffers from hot cracking making it nearly impossible to process by L-PBF. …”
Get full text

Construction of Long-Span Bridge Bearing Platforms in Deep and Thick Silt Interlayers by Kang Yang, Wenbin Zhang, Puyu Li, Didi Hao, Chunfeng Wan, Changqing Miao

“…It compares and selects the optimal cofferdam scheme, ultimately employing a combined cofferdam structure that integrates underwater high-pressure rotary piling for base reinforcement and steel sheet piles. …”
Get full text

A Study on Reactive Ultra-Fine Fly Ash and Sulfoaluminate Cement in Self-Leveling Mortar by Pei-Min Chuang, Wei-Chung Yeih, Ran Huang, Jiang-Jhy Chang

“…At a 10% volume percentage level, SAC achieves an ideal balance among drying shrinkage, brasion, and shrinkage cracking.…”
Get full text

Quasi-Static Testing of Unreinforced Masonry Walls Using Different Styles of Basalt Fiber Mortar Surface Reinforcements by Yize Wang, Bixiong Li, Qingshun Nong, Xing Liu

“…The results show that, compared to O-MW, BF-MW exhibited a 10.3%, 1.5%, and 28.1% increase in cracking load, peak load, and energy dissipation capacity, respectively. …”
Get full text

Failure and Remediation of an Embankment on Rigid Column-Improved Soft Soil: Case Study by Shaofu Gu, Weizheng Liu, Mengyuan Ge

“…Embankment sliding with a length of approximately 110 m and cracking with a length that exceeded 300 m occurred before the construction of the pavement structure. …”
Get full text

Study on the Applicability of Nitrile Butadiene Rubber in CO₂ Environment by WU Guang'ai, LIU Zixuan, FENG Huanzhi, LI Zhun, WANG Zhu

“…In the CO2 capture，utilization，storage and enhanced oil recovery (CCUS-EOR) environment，rubber packer failure in injection wells is a serious problem.The performance and applicability of nitrile rubber (NBR) in CO2 environments within CCUS-EOR systems were investigated，and the suitability range of NBR was established to provide guidance on the selection and application of rubber seals for CO2 systems.Corrosion and aging tests of NBR in CO2 environments were conducted following the standard GB/T 34903.1－2017.Before and after CO2 environment corrosion aging test，changes in sample appearance were observed，and mass variation was recorded.Additionally，hardness，tensile strength，elongation at break and Vicat softening temperature tests were performed.Infrared analysis was conducted on samples both before corrosion test and after exposure to gaseous conditions at 100 ℃and 30 MPa.Results showed that after CO2 corrosion testing，the mass of NBR increased，hardness decreased，tensile strength decreased，and Vicat transition temperature declined.The influence of temperature and pressure on the properties of NBR materials after CO2 environmental testing was as follows: as pressure increased，the Shore hardness and tensile strength of NBR decreased，while density increased；as temperature increased，Shore hardness increased，tensile strength decreased，and density decreased.The functional groups and chemical bonds of NBR exhibited minimal changes after the CO2 tests，indicating no significant aging.However，NBR was found to face risks of corrosion and cracking in high-temperature and high-pressure CO2 environments，attributed to rapid gas decompression (RGD) damage of NBR under high pressure.NBR was deemed suitable for use in low-to-moderate temperature and lowpressure CO2 environments.…”
Get full text

Texture evolution in building direction of wire arc additive manufactured 316L stainless steel with high plasticity by Hang Dong, Yongcun Li, João Pedro Oliveira, Sheng Gao, Wenjun Zhu, Yong Wang

“…Crystallographic orientation in polycrystalline materials impacts multiple properties including fatigue resistance, stress corrosion cracking resistance, and elongation. Currently arc-based directed energy deposition, also known as wire arc additive manufacturing (WAAM), is used for 316L stainless steel (SS), offering high strength and ductility. …”
Get full text

Directed energy deposition of functionally graded V-4Cr-4Ti to Fe-9Cr transition for fusion power systems by D. Ebeperi, T. Graening, Y. Yang, A. Whitt, R. Seede, K.C. Atli, Y. Katoh, R. Arroyave, I. Karaman

“…A brittle intermetallic formed at one interface, causing cracking, which was not predicted by current thermodynamic models. …”
Get full text

Determining the optimal harvest time for pomegranate variety wonderful in semi-arid climate by Vahideh Narjesi, Alireza Bonyanpour, Ali Akbar Ghasemi-Soloklui

“…Twelve similarly sized trees were selected for each orchard, and fruits were harvested at three-time intervals: 155 days after flowering (DAF) (September 27), 170 DAF (October 12), and 185 DAF (October 27). …”
Get full text

Hydrogen-free dewaxing of diesel fractions on zeolite BETA catalysts by Anna Sergeevna Ovcharova, Elena Evgenievna Knyazeva, Irina Vladimirovna Savenkova, Sergey Nikolaevich Ovcharov

“…Regularities of hydrogen-free dewaxing process of fraction 280–350 °C from blended Stavropol-Dagestan oil crudes on modified by zinc zeolite BETA catalysts, which allows selective cracking high-molecular paraffins while preserving cetane number, are studied.…”
Get full text

Comparative study of NLFE models for simulating settlement-induced damage in masonry façades: macro- and simplified micro-models by Alfonso Prosperi, Michele Longo, Paul A. Korswagen, Giorgia Giardina, Jan G. Rots

“…The macro-models employ two well-established constitutive models, the Total Strain Rotating Crack Model (TSRCM) and the Engineering Masonry Model (EMM), to capture the non-linear cracking behaviour of masonry. …”
Get full text

Features of diseases of winter rape in the conditions of the Western Forest-Steppe by О. N. PRYSТАTSKА, H. Ya. BІLОVUS, О. А. VАSHCHYSHYN, І. S. VОLОSHCHUK

“… An important task for the development of the agricultural sector of the economy of Ukraine in modern conditions is the selection of crops capable of giving high productivity and profitability. …”
Get full text

Research on the Influence of Nanocarbon/Copolymer SBS/Rubber Powder Composite Modification on the Properties of Asphalt and Mixtures by Wenhui Zhao, Xiangbing Xie, Guanghui Li, Jiuguang Geng, Meng Bao, Mingwei Wang

“…Furthermore, the mixture properties, including the high-temperature stability, low-temperature cracking resistance, moisture stability, and freeze-thaw splitting, were evaluated in the laboratory. …”
Get full text

Detection of Defects in Polyethylene and Polyamide Flat Panels Using Airborne Ultrasound-Traditional and Machine Learning Approach by Artur Krolik, Radosław Drelich, Michał Pakuła, Dariusz Mikołajewski, Izabela Rojek

“…Tests were conducted on plates with generated synthetic defects resembling defects found in real materials such as delamination and cracking at the edge of the plate and a crack (discontinuity) in the center of the plate. …”
Get full text

Options for Nitriles Removal from C–C Cuts: 1. Via Adsorption by Maria M. Ramírez-Corredores, Zaida Hernández, Julia Guerra, Jaqueline Medina, Rosa Alvarez

“…Light cuts from fluid catalyst cracking (FCC) units are commonly used as feedstocks for etherification units in oil refineries. …”
Get full text

Method of diversity software protection based on fusion compilation by Xiaobing XIONG, Hui SHU, Fei KANG

“…For the obvious characteristics and single mode of the existing common protection methods,with the help of the LLVM framework,a diversity software protection method based on fusion compilation was proposed.In the proposed method,the target software is encrypted randomly,and deeply integrated with the bunker code at the compilation level,and the encrypted target software is decrypted by memory execution technology.Then it is executed in the form of no process in memory,and the diversified protection effect of the target software is realized by the diversity of the bunker and the randomness of the fusion strategies.A number of commonly used software are selected as the test case,and the proposed method is tested from the aspects of resource cost,protection effect,comparative experiment and so on.Compared with the traditional methods such as obfuscation and packing,the proposed method has great advantages in anti-static analysis and anti-dynamic debugging,and can effectively resist the mainstream methods of reverse analyzing and cracking.…”
Get full text

Acoustic emission localization model of concrete material based on convolutional neural network by DENG Yongdong, ZHOU Jingren, LU Xiang, CHEN Jiangkang

“…ObjectiveHydraulic concrete will produce acoustic emission phenomenon due to cracking and other damages. It is important to quickly and accurately locate the damage source according to the acoustic emission signals for real-time monitoring of the health status of hydraulic buildings. …”
Get full text