Showing 2,581 - 2,600 results of 3,272 for search '"grains"', query time: 0.07s Refine Results
  1. 2581

    Study on micro - nano sized Al2O3 particles on mechanical, wear and fracture behavior of Al7075 Metal Matrix Composites by M. Ravikumar, H. N. Reddappa, R. Suresh�, E. R. Babu, C. R. Nagaraja

    Published 2021-10-01
    “…However, nano Al2O3 reinforced MMCs have better hardness, improved tensile strength and higher wear resistance as compared with micro-sized Al2O3 reinforced MMCs. Grain refinement of composite and nano composite materials as compared with pure Al were observed in the microscopic structures. …”
    Get full text
    Article
  2. 2582

    STUDY ON THE EFFECT OF ROLLING STRENGTHENING ON THE SURFACE INTEGRITY OF 45 STEEL THREAD ROOT by WANG Dong, LU XinXi, ZHAO JingWen, LIN HongXu, ZHANG Meng

    Published 2022-01-01
    “…After the 45 steel thread sample underwent the rolling strengthening process, the surface roughness S<sub>a</sub> of the thread root is reduced from 1.71 μm to 0.874 μm; the thread root forms an obvious grain refinement layer with a depth of 120 μm; the microhardness increases from 199.3 HV to 379.5 HV, and the hardening degree N=90.4%; the residual stress of the surface layer is distributed in a spoon shape, and the residual stress reaches a peak value of-542 MPa at 105 μm from the surface, and the depth of the residual compressive stress layer can reach 700 μm. …”
    Get full text
    Article
  3. 2583

    GENETIC COMPLEXITY AND CONTEXT SPECIFICITY OF TRAITS IMPROVING WHEAT YIELD UNDER DROUGHT CONDITIONS by V. A. Krupnov

    Published 2015-01-01
    “…In these contrasting conditions, the key role in grain yield is played by growth habit, growing period, and technology. …”
    Get full text
    Article
  4. 2584

    Effects of Cow Dung Ash on Chemical and Geotechnical Properties of Lateritic Soil for Road Construction collected Shao-Malete Road in Kwara State, Nigeria by A. G. Adelodun, O. O. Amu, K. J. Ayinde

    Published 2025-02-01
    “…Cow dung ash (CDA) was used in stabilizing lateritic soil at ratios 0, 2, 4, 6, 8 and 10% of disturbed soil sample (fine - grained i.e. silt-clay material). The soil samples were subjected to laboratory tests such as Specific gravity, particle size distribution, Atterberg limits, compaction, California bearing ratio, unconfined compressive strength, Triaxial shear strength in accordance with British Standards (BS 1377: 1990 and BS 1924: 1990). …”
    Get full text
    Article
  5. 2585

    Face presentation attack detection. A comprehensive evaluation of the generalisation problem by Artur Costa‐Pazo, Daniel Pérez‐Cabo, David Jiménez‐Cabello, José Luis Alba‐Castro, Esteban Vazquez‐Fernandez

    Published 2021-07-01
    “…Here, an extensive analysis of the generalisation problem in face‐PAD is provided, jointly with an evaluation strategy based on the aggregation of most publicly available datasets and a set of novel protocols to cover the most realistic settings, including a novel demographic bias analysis. Besides, a new fine‐grained categorisation of presentation attacks and instruments is provided, enabling higher flexibility in assessing the generalisation of different algorithms under a common framework. …”
    Get full text
    Article
  6. 2586

    Corrosion of a chimney liner operated for 130,000 hours by Gwoździk M.

    Published 2023-01-01
    “…The chimney insert was studied on the inside and outside each cross-section. Coal with a grain size of 5–21 mm was analyzed. The bottom ash consisted of both loose ash and a mass of glassy sintered ash, the so-called slag. …”
    Get full text
    Article
  7. 2587

    Contextual access control based on attribute-based encryption with hidden lattice structure for removable storage media by Bo CHEN, Ling YU, Xiao-hui QIANG, Yan WANG

    Published 2014-04-01
    “…It effectively simplifies the expression of access policies and satisfies fine-grained access control of sensitive information shared in the context of multi-level security. …”
    Get full text
    Article
  8. 2588

    Achieving High-Quality Image Stylization Using Hierarchical Sensibility Boost, Visual Style Attention, and Covariance Evolution Blend by Ya Gao

    Published 2025-01-01
    “…Traditional methods, however, struggle to retain fine-grained details and often exhibit issues such as discordant textures and noticeable artifacts. …”
    Get full text
    Article
  9. 2589

    Dynamics of Mean-Variance-Skewness of Cumulative Crop Yield Impact Temporal Yield Variance by Abdullah A. Jaradat

    Published 2011-01-01
    “…Farmers' decision to adopt new management or production system depends on production risk. Grain yield data was used to assess production risk in a field experiment composed of two cropping systems (CNV and ORG), each with eight subsystems (two levels each of crop rotation (2-yr and 4-yr), tillage management (conventional, CT and strip, ST), and fertilizer input (fertilized, YF and non-fertilized, NF)). …”
    Get full text
    Article
  10. 2590

    Extraction of a low grade zinc ore using gravity and froth flotation methods by Alabi Oladunni Oyelola, Dalhatu Aboki Abdu, Abere Dare Victor, Magnus T Igonwelundu, Bala Meshack Bosan, Araoye Babatunde Oyebode

    Published 2017-02-01
    “…Analysis of the chemical composition reveals that the crude ore contains 20.20% Zinc and other related minerals such as  66.72% SiO2, 2.36%.Pb, 16.62%Fe, 0.001%Ag, these are impurities that  hindered the grade of zinc in this ore from appreciating. Fractional and grain sieve size results revealed that the liberation size of the ore is at -355+250μm assaying 32.41%Zn. …”
    Get full text
    Article
  11. 2591

    Determining application rates of FYM and pressmud to improve soil health properties in salt degraded soils. by M L Dotaniya, M D Meena, R L Choudhary, M K Meena, V D Meena, H V Singh, R S Jat, R K Doutaniya, Kuldeep Kumar, Harpreet Singh, P K Rai

    Published 2025-01-01
    “…Improving food grain production by enhancing plant nutrient availability is critical for meeting future production. …”
    Get full text
    Article
  12. 2592

    EFFECT OF ULTRASONIC SRUFACE IMPАСТ MODIFICATION ON THE FATIGUE PROPERTIES OF 316L STAINLESS STEEL by ZHU JiangPei, Ql YuTing, ZHANG ShaoFeng, XU JiaJing, CAO XiaoJian

    Published 2024-02-01
    “…Cracks usually propagate along the grain boundary. The velocity fluctuation of crack propagation zone is also attributed to the heterogeneous phases. …”
    Get full text
    Article
  13. 2593

    Microstructure dependence of fatigue crack propagation behavior in wrought magnesium alloy by S. Morita, S. Fujiwara, T. Hori, N. Hattori, H. Somekawa, T. Mayama

    Published 2016-01-01
    “…This paper deals with the fatigue crack propagation behavior of rolled AZ31B magnesium alloy (grain size: approximately 40 m). Fatigue crack propagation tests were performed on single edge notched tension specimens at a stress ratio of R = 0.1 and a frequency of 10 Hz at room temperature. …”
    Get full text
    Article
  14. 2594

    Research on FTTR WLAN indoor wireless location algorithm based on frequency response by Zhifeng LONG, Jing ZHANG

    Published 2023-09-01
    “…Highly accurate and reliable indoor wireless positioning services have been widely used.In order to obtain good positioning accuracy, the design of positioning algorithms needs to be matched with wireless positioning facilities.fiber to the room (FTTR) is an indoor access network solution based on IEEE 802.11 ax, a new generation of wireless local area network (WLAN) standard.Compared with the existing Wi-Fi networks, FTTR has a much larger available band width.However, FTTR WLAN also lacks of a public valid data set to support localization functions, which makes the localization research based on FTTR scenarios face huge obstacles.In order to solve the above problems, firstly, a frequency response-based FTTR scene dataset generation method was proposed, which uses the existing Wi-Fi localization dataset to generate the frequency response matrix within the available band width of FTTR.Then, the parallel path principal component analysis (PCA) method was used to generate the classification matrix.And the generated dataset was trained using a fully connected neural network to improve the accuracy.The experimental results on the real measurement dataset show that the proposed localization algorithm can achieve a localization accuracy of less than 1 m, which is not only more accurate than the traditional location estimation algorithm, but also basically meets the fine-grained localization requirements for practical applications.…”
    Get full text
    Article
  15. 2595

    Cross-dataset person re-identification method based on multi-pool fusion and background elimination network by Yanfeng LI, Bin ZHANG, Jia SUN, Houjin CHEN, Jinlei ZHU

    Published 2020-10-01
    “…The existing cross-dataset person re-identification methods were generally aimed at reducing the difference of data distribution between two datasets,which ignored the influence of background information on recognition performance.In order to solve this problem,a cross-dataset person re-ID method based on multi-pool fusion and background elimination network was proposed.To describe both global and local features and implement multiple fine-grained representations,a multi-pool fusion network was constructed.To supervise the network to extract useful foreground features,a feature-level supervised background elimination network was constructed.The final network loss function was defined as a multi-task loss,which combined both person classification loss and feature activation loss.Three person re-ID benchmarks were employed to evaluate the proposed method.Using MSMT17 as the training set,the cross-dataset mAP for Market-1501 was 35.53%,which was 9.24% higher than ResNet50.Using MSMT17 as the training set,the cross-dataset mAP for DukeMTMC-reID was 41.45%,which was 10.72% higher than ResNet50.Compared with existing methods,the proposed method shows better cross-dataset person re-ID performance.…”
    Get full text
    Article
  16. 2596
  17. 2597

    Mathematical probit and logistic mortality models of the Khapra beetle fumigated with plant essential oils by Alhadi E. Alamir, Gomah E. Nenaah, Mohamed A. Hafiz

    Published 2015-03-01
    “…Results could help in using a relatively safe and effective strategy for the control of this serious pest using alternative control strategy to reduce the health and environmental drawbacks resulted from the excessive reliance on the broadly toxic chemical pesticides and in order to contribute safeguard world-wide grain supplies.…”
    Get full text
    Article
  18. 2598

    Effect of carbon and manganese content on the microstructure and mechanical properties of high manganese austenitic steel by Gürol U., Can Kurnaz S.

    Published 2020-01-01
    “…Increased carbon and manganese content increased the grain size and the amount of carbides in the as-cast condition. …”
    Get full text
    Article
  19. 2599

    Transcranial Alternating Current and Random Noise Stimulation: Possible Mechanisms by Andrea Antal, Christoph S. Herrmann

    Published 2016-01-01
    “…Such findings are further supported by neural network simulations and knowledge from physics on entraining physical oscillators in the human brain. As a result, fine-grained models of the human skull and brain allow the prediction of the exact pattern of current flow during tDCS and tACS. …”
    Get full text
    Article
  20. 2600

    Research on the sustainable design strategies of vernacular architecture in Southwest Hubei-A case study of the First Granary of Xuan'en County. by Wei Xu, Qinyu Wang, Hao Deng, Zhenhua Zhu

    Published 2024-01-01
    “…The results demonstrate that the average temperature of the grain depot does not exceed 25°C without active means, meeting the quasi-low temperature storage standard. …”
    Get full text
    Article