Showing 241 - 260 results of 513 for search 'active cracking', query time: 0.09s Refine Results
  1. 241

    Osseointegration of a 3D Printed Stemmed Titanium Dental Implant: A Pilot Study by James Tedesco, Bryan E. J. Lee, Alex Y. W. Lin, Dakota M. Binkley, Kathleen H. Delaney, Jacek M. Kwiecien, Kathryn Grandfield

    Published 2017-01-01
    “…The histological presence of multinucleated osteoclasts and cuboidal osteoblasts revealed active bone remodeling in the stemmed implant starting at 3 weeks and by 12 weeks in the conventional implant. …”
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    Article
  2. 242

    Road properties of cement-phosphogypsum-red clay under dry and wet cycles. by Yunke Liu, Kaisheng Chen, Hao Jian, Zeyu Liu

    Published 2024-01-01
    “…The roadbed of the test road was smooth and dense, with no scouring, peeling or cracking. The settlement of the roadbed is less than the requirement of "Highway Roadbed Design Specification" (JTGD30-2015). …”
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    Article
  3. 243

    Study on High-Temperature Behavior of Coal Gangue-Based Geopolymer Concrete Beams by Daming Zhang, Jiaqing Xu, Fangjin Sun, Zhonghao Xu

    Published 2022-01-01
    “…A newly coal gangue-based geopolymer concrete made from alkaline dry powder activator, coal gangue, and fly ash has been proposed by the authors. …”
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    Article
  4. 244

    Catalytic by S.A. Hanafi, H.M. Gobara, M.S. Elmelawy, S.A. Abo-El-Enein, A.A. Alkahlawy

    Published 2014-03-01
    “…TEM micrographs of the solid catalysts demonstrate well-dispersed Pt, Ni and Cr nanoparticles having sizes of 2–4 nm and 7–8 nm, respectively. The catalytic activity results indicate that the bimetallic (0.5Pt–0.3Cr)/D18H–Y catalyst is the most active towards n-hexane and n-heptane isomerization while (0.5Pt–0.6Ni)/D18H–Y catalyst can be designed as most suitable as a cracking catalyst.…”
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    Article
  5. 245

    Bilateral hallux Saltans, a Rare Finding: Diagnosis and Arthroscopic Treatment in a Young Ballet Dancer: Report of a Case by Ainú Verdini Gasti, Rosemary James, Felix Neumayer

    Published 2025-04-01
    “…Case Report: A 16-year-old female, training to become a professional ballet dancer, presented with a 2-year history of pain and swelling of the right ankle, associated with triggering of the hallux and audible cracking at active extension. After a magnetic resonance imaging (MRI) diagnosis of tenosynovitis of right FHL tendon, the patient was treated operatively by posterior arthroscopic tenolysis of the FHL, which was entrapped by the fibrous tissue of the tendon sheath. …”
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    Article
  6. 246

    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

    Published 2025-01-01
    “…Unlike the fly ash, RUFA has a strong strength activity index and exhibits a significant pattern of amorphous phase in XRD. …”
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    Article
  7. 247

    Deep learning for quantitative dynamic fragmentation analysis by Erwin Cazares, Brian E. Schuster

    Published 2025-03-01
    “…These experiments provided a rich and diverse dataset that includes many of the common fracture modes found in static and dynamic fractures, including cone cracking, median cracking, comminution, and combined complex failure modes that involve effectively simultaneous activation and propagation of multiple fragmentation modes. …”
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    Article
  8. 248

    Classification and determination of the tobacco raw materials authenticity during the forensic examination by S. A. Trofimets

    Published 2024-12-01
    “…The article provides a systematisation of information on the characteristic defects of tobacco raw materials, namely: mould, rot, drying, cracking, deformation (these defects may arise as a result of various factors, such as climatic conditions, methods of growing, storing and processing of tobacco raw materials). …”
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    Article
  9. 249

    Investigation on the formability and deformation mechanism of Zircaloy-4 sheets with different initial textures during stamping by Deng Siying, Xie Wenlong, Chen Shuaifeng, Song Hongwu, Zhang Shihong

    Published 2025-01-01
    “…The contribution of slip and twinning to crack formation was quantified. The simulation indicated that Zr-4 sheets with weaker textures exhibited better deformation compatibility, primarily due to enhanced activation of prismatic slip, whereas sheets with stronger textures showed dominant basal slip activity, which promoted cracking.…”
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  10. 250

    The influence of the disturbing effect of roadways through faults on the faults' stability and slip characteristics by Shuaifeng Lu, Andrew Chan, Xiaolin Wang, Shanyong Wang, Zhijun Wan, Jingyi Cheng

    Published 2024-12-01
    “…The dominant crack orientation is approximately 90°, aligned with the vertical stress.…”
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  11. 251

    Acoustic Emission Characteristics of Normal and Layered Concrete Blocks during Dilating/Static Fracture by Ji Ma, Feng Du, Shuai Zhang

    Published 2020-01-01
    “…In this paper, using acoustic emission (AE) technology and surface displacement monitoring, the deformation and fracturing of ordinary-strength concrete, concrete with a soft interlayer, and layered concrete (with strength decreasing successively by layer) were studied under the effect of a static (or soundless) cracking agent (SCA). The experimental results indicated that (1) AE activity of the two layered concrete test blocks during static fracturing showed a gradually increasing trend, while that of the ordinary-strength concrete tended to first increase and then decrease; (2) for the concrete test block with a soft interlayer sandwiched by high-strength layers, the AE events reached a maximum in the transfer of expansion pressure stage, which accounted for 47.11% of the total value in static cracking; the macroscopic damage to layered concrete test blocks comprising multiple interlaid layers with different strengths mainly occurred in the fracturing stage, during which the AE events and AE energy accounted for 76.22% and 66.94%, respectively, of those in the whole static fracturing process; and (3) the duration of static fracturing prolonged with the increase of the overall strength of the concrete test blocks. …”
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  12. 252

    Comparative study on transition metal promoted Pt/SiO2 for oxidative dehydrogenation of propane with carbon dioxide by Heng-Bo Zhang, Guo-Qing Yang, Jiageng Li, Zhong-Wen Liu

    Published 2025-07-01
    “…Among the investigated catalysts, PtMn/SiO2 is the most active and selective catalyst for the activation of C-H bonds in propane to produce C3H6 while PtNi/SiO2 is the most favorable catalyst for the formation of by-products via the dry reforming of propane with CO2 and propane cracking. …”
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  13. 253

    Recent progress of interface modification of layered oxide cathode material for sodium‐ion batteries by Luyi Sun, Jun Zeng, Xuanhong Wan, Chenxi Peng, Jiarui Wang, Chongjia Lin, Min Zhu, Jun Liu

    Published 2024-05-01
    “…Among these issues, interface instability including surface residues, phase transitions, loss of active transition metal and oxygen loss takes up the major part of the degradation of layered oxides. …”
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    Article
  14. 254

    Construction and prospect of the technical system for the resource utilization of pressure-relieved floor rock strata in mine goafs by Weibing ZHU, Zhu LI, Bozhi ZHAO, Chunlei GUO, Shan NING

    Published 2025-05-01
    “…The strata control technology of blasting-induced cracking and expansion in floor, that is, fully utilize the blasting-induced cracking and expansion effect and the bulging characteristics of the unloading floor, and precisely crack and break the coal seam floor through directional blasting, thereby increasing the degree of fragmentation of the floor to eliminate part of the extracted space of the coal seam, and equivalently increase the comprehensive expansion coefficient of the rock strata in the collapse zone after coal mining, reducing the space for the downward movement of the roof. …”
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  15. 255

    Gas geochemistry evaluation of onshore Colombian basins: New insights for natural gas and liquified petroleum gas prospectivity by César Mora, Antonio Rangel, Mauricio A Bermúdez, Gleubis Belén Silveira Moreno, Claudia Posada

    Published 2025-06-01
    “…Results suggest a predominantly thermogenic origin for the gases studied, generated within the oil and gas windows, with several samples originating from secondary oil cracking, while some samples from LMB display a likely biogenic origin. …”
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  16. 256

    Stress superposition characteristics and roof structure control of recovery room in close distance coal seam by Zizhao FU, Jianbiao BAI, Shuai YAN, Dong ZHANG, Xiaodong ZHENG, Guangjun SUN, Yongjie WANG

    Published 2025-06-01
    “…The results show that: By establishing a mechanical model of the roof of the recovery room during the final mining period, it is determined that under the geological conditions of the mine, the support resistance P1≥3.05 MPa in the recovery room can ensure the stability of the surrounding rock of the recovery room after the working face and recovery room are connected; Using empirical formulas optimized by multiple linear and nonlinear regression analysis, it is estimated that the depth of failure of the upper coal seam working face floor is greater than 8.41 m and less than the interlayer spacing of 13.3 m; Using the UDEC numerical calculation model, the evolution law of cracks on the roof of the recovery room was inverted, and reinforcement measures were taken 10 m in advance for the roof of the recovery room under the goaf, and 15 m in advance for the roof of the recovery room under the coal pillar; Propose a comprehensive stability control technology for the combined active and passive support of anchor cables and individual pillars in the recovery room, as well as the advanced pre cracking of the surrounding rock in the inner roof of the coal pillar lower channel, and apply it to different stress affected areas of the recovery room. …”
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  17. 257

    Research on the process of naphtha hydrocracking to chemical materials by Kui Zhang, Zhihai Hu, Liang Ren, Hong Nie, Guangle Zhao, Yuanbing Xi, Chunlu Wang

    Published 2025-06-01
    “…Ni and ZSM-5 molecular sieve were selected as the hydrogenation active component and the cracking component of Catalyst-HC, respectively. …”
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  18. 258

    CHARACTERIZATION OF HIGH-SILICA MORDENITE OBTAINED BY DIRECT SYNTHESIS

    Published 1998-06-01
    “…The protonic mordenites with Si02/A1203ra tios of 14.6,29.2 and 34.6 were characterized by X-ray diffraction, energy dispersive X-ray microprobe analysis, scanning electron microscopy and thermogravimetric analysis. Catalytic cracking of n-hexane was studied as a measure of catalytic activity of protonic mordenites. …”
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  19. 259

    Avoiding endocarp lesion and abscission of pistachio nut using lecithin-enriched calcium nitrate by Mozhdeh Yousefi, Seyed Hossein Mirdehghan, Majid Esmaeilizadeh, Fatemeh Nazoori, Seyyed Rasoul Sahhafi

    Published 2025-06-01
    “…In 'Akbari,' calcium nitrate treatments reduced issues such as nut ounce, shell staining, deformed nuts, blank nuts, endocarp lesions, early-split nuts, hull decay, and hull cracking. In contrast, Kaleh-Ghoochi also benefited from reduced occurrences of deformed nuts, early-split nuts, hull decay, and hull cracking. …”
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  20. 260

    Impact of Reflective Ground Film on Fruit Quality, Condition, and Post-Harvest of Sweet Cherry (<i>Prunus avium</i> L.) cv. Regina Cultivated Under Plastic Cover in Southern Chile by Ariel Muñoz-Alarcón, Cristóbal Palacios-Peralta, Jorge González-Villagra, Nicolás Carrasco-Catricura, Pamela Osorio, Alejandra Ribera-Fonseca

    Published 2025-02-01
    “…Plastic covers protect fruits from cracking caused by pre-harvest rains in sweet cherry orchards; however, they can decrease the quality parameters of cherries, such as firmness, titratable acidity, color, and sugar content. …”
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