Showing 8,121 - 8,140 results of 11,088 for search '"chemical"', query time: 0.11s Refine Results
  1. 8121
  2. 8122

    Groundwater-Mixing Mechanism in a Multiaquifer System Based on Isotopic Tracing Theory: A Case Study in a Coal Mine District, China by Pinghua Huang, Xinyi Wang

    Published 2018-01-01
    “…This condition indicates that groundwater mixing involves major chemical actions. The δD–δ18O plot reveals that karst water and groundwater from Quaternary and sandstone aquifers are mainly mixtures of local rainfall, evaporated groundwater, and “palaeo-groundwater.” …”
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  3. 8123

    Dietary Fiber Extraction from Defatted Corn Hull by Hot-Compressed Water by Wang Li, Liu Hua-Min, Xie Ai-Jun, Zhu Chun-Yan, Qin Guang-Yong

    Published 2018-06-01
    “…The aim of this study was to extract the dietary fiber by hot-compressed water (HCW) from defatted corn hull and to determine the chemical properties. Results showed that temperature and time played critical roles in extraction efficiency; the maximal yield of dietary fiber A (DFA) extracted by HCW reached 33.0% at 150°C for 60 min. …”
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  4. 8124

    Characterization of olive mill wastewater in three climatic zones in the North of Jordan by Mamoun Gharaibeh, A. Albalasmeh Ammar, Hanady Abu Abbas

    Published 2022-06-01
    “…Physicochemical characterization and multivariate analysis were performed.Results OMW is characterized by acidic conditions (pH< 5.0), high electrical conductivity (EC) (>7 dS/m), and high total phenols (2700 mg/L) and organic loads (chemical oxygen demand [COD] 41340 mg/L). OMW in the sub-humid climate contained higher total phenols, COD, EC, Ca, and K than other climates. …”
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  5. 8125

    Evaluation of Yeast Alcohol Acetyltransferases for Ethyl Acetate Production in Clostridium ljungdahlii by Santiago T. Boto, Kareem Gerges, Bettina Bardl, Miriam A. Rosenbaum

    Published 2025-01-01
    “…ABSTRACT Sustainable chemical production from C1 gaseous substrates, such as syngas or CO2/H2, can be achieved through gas fermentation. …”
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  6. 8126
  7. 8127

    Experimental Research on Mechanical Property and Environmental Safety of an Industrial Residue Waste Subgrade Material by Yangpeng Zhang, Jianping Xiong, Qinglin Li, Jiuhui Cui

    Published 2020-01-01
    “…According to the deformation variation, the accumulation settlement of SOF under vehicle loadings after several years is predicted, which is far lower than the limit of expressway and Grade I highway. Furthermore, the chemical stability and toxicity of SOF leachates are environmentally friendly, which are in line with the benchmarks of Class II surface water and Class III ground water. …”
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  8. 8128
  9. 8129

    Model analysis of a simple aquatic ecosystems with sublethal toxic effects by B. W. Kooi, D. Bontje, M. Liebig

    Published 2008-09-01
    “…This indicates that chemical stressors are analysed mathematically in the same way as environmental (e.g. …”
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  10. 8130
  11. 8131
  12. 8132

    Multiobjective Optimization Design and Performance Prediction of Centrifugal Pump Based on Orthogonal Test by Yuqin Wang, Xinwang Huo

    Published 2018-01-01
    “…Based on the external characteristic experimental bench of the IH 65-60-190 chemical centrifugal pump, the simulation values and test values of the prototype pump and the optimization pump were obtained under different working conditions. …”
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  13. 8133

    Incidence of Post Instrumentation Pain Following Endodontic Treatment Among Patients Attending College of Dentistry-Hawler Medical University. by Intesar Saadallah Toma, Hussein Jamal Hashim, Muhammed Amir Salahadin, Muhammed Dana Razaq

    Published 2024-03-01
    “… Background and objective: The background of this study revolves around endodontic treatment, which is a therapeutic approach involving the chemical and mechanical disinfection of root canals, followed by the establishment of a secure three-dimensional seal. …”
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  14. 8134

    Evaluation of Background Black Carbon Concentration in India by Maji Smaran, V. Vinoj

    Published 2024-05-01
    “…The method is evaluated for consistency using ground-based observations (BC from Aethalometer) and extended to the whole Indian region using chemical reanalysis datasets (MERRA-2, Modern-Era Retrospective Analysis for Research and Applications, version 2). …”
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  15. 8135

    The Time Effect and Micromechanism of the Unconfined Compressive Strength of Cement Modified Slurries by Ping Jiang, Yewen Chen, Lin Zhou, Tianhao Mao, Wei Wang, Junping Yuan, Na Li

    Published 2021-01-01
    “…We conducted scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and X-ray diffraction (XRD) tests to analyze the microstructure and chemical composition of the CMS. The microscopic test results demonstrated that the increase of cement content and curing age increased the amount of gelling substances in the CMS and made the overall structure more compact, thereby increasing its macro strength.…”
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  19. 8139

    Physicochemical Characterization and Asymmetric Catalytic Properties of New Biobased Organocatalytic Surfactants by Elliot Calbrix, Pascale de Caro, Sophie Thiebaud-Roux, Christine Cecutti, Emeline Vedrenne

    Published 2025-01-01
    “…In organic synthesis, the solvent is the chemical compound that represents the largest proportion of the process. …”
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  20. 8140

    Ten years of collaboration between France and Japan - Studies on reproduction in Japanese macaques by Cécile Garcia, Fred Bercovitch, Takeshi Furuichi, Michael A Huffman, Andrew MacInstosh, Lucie Rigaill, Rafaela S C Takeshita, Keiko Shimizu

    Published 2016-12-01
    “…This holistic study, combining fieldwork and laboratory experiments, and using a multidisciplinary approach (behavioral observations (sexual interactions), digital photography (visual scoring of female sexual skin color), hormonal (fecal ovarian steroids) and chemical data (components of female vaginal secretions)) allowed us to assess how different signals may combine to influence patterns of primate mate choices.…”
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