Showing 921 - 940 results of 3,983 for search 'Projective sampling', query time: 0.13s Refine Results
  1. 921

    Hyperspectral Detection of Pesticide Residues in Black Vegetable Based on Multi-Classifier Entropy Weight Method by Rongchang Jiang, Guoqiang Zhuang, Shijie Xie, Yang Wang, Guoqi Zhang, Dandan Qu, Wanzhi Wen

    Published 2025-01-01
    “…Three dimensionality reduction techniques, competitive adaptive reweighted sampling, random frog leaping, and successive projections algorithm, were compared. …”
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    Article
  2. 922

    Performance Characteristics of Newly Developed Real-Time Wave Measurement Buoy Using the Variometric Approach by Chen Xue, Jingsong Guo, Shumin Jiang, Yanfeng Wang, Yanliang Guo, Jie Li

    Published 2024-11-01
    “…However, wave mean period disparities were observed partially because of sampling frequency differences. To validate this idea, we used Joint North Sea Wave Project (Jonswap) spectral waves as input signals, the bias characteristics of the mean periods of the spectral calculations were compared under conditions of identical input signals and gradient-distributed wind speeds. …”
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  3. 923

    Mobile brain imaging in butoh dancers: from rehearsals to public performance by Constantina Theofanopoulou, Sadye Paez, Derek Huber, Eric Todd, Mauricio A. Ramírez-Moreno, Badie Khaleghian, Alberto Muñoz Sánchez, Leah Barceló, Vangeline Gand, José L. Contreras-Vidal

    Published 2024-11-01
    “…We also describe the engineering details and hardware that enabled us to achieve synchronization between signals recorded at different sampling frequencies, along with a signal preprocessing and denoising pipeline that we used for data re-sampling and power line noise removal. …”
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    Article
  4. 924

    Lived experiences of farmworkers from five U. S. states during the COVID-19 pandemic by Keren Herrán, Nicandro Mandujano-Acevedo, Jocelyn Claudel Suarez, Bethany Boggess, Edward A. Frongillo

    Published 2025-06-01
    “…ObjectiveThe nexus of farmworker and COVID-19 peer-reviewed research has yet to be advanced by qualitative analysis that: (1) focuses on multiple dimensions of farmworker’s daily life and (2) uses a geographically diverse sample. The present data collection project fills this gap by using the National Center for Farmworker Health’s (NCFH) Farmworker COVID-19 Community Assessment (FCCA) Phase 2 dataset which contains a varied sample of farmworkers and local experts across selected counties in five states. …”
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  5. 925

    A Location Effect on the Capital Gains of Condominium Investment by Teeramungcalanon Monthinee, Rattanaprichavej Niti

    Published 2025-03-01
    “…It employed secondary data selected through judgmental sampling. Capital gains data spanning 5 to 15 years were collected quarterly from 1,381 condominium projects in Thailand. …”
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  6. 926

    Using Grounded Theory by John Fullerton

    Published 2025-06-01
    “…The book covers core processes such as open and selective coding, constant comparison, theoretical sampling, and memoing, with recurring attention to conceptualization throughout the entire research project. …”
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    Article
  7. 927
  8. 928

    ANALISIS KELAYAKAN SOSIAL DAN FINANSIAL PEMBUATAN TAMBAK UDANG DI KABUPATEN MUKOMUKO PROPINSI BENGKULU by Sri Wahyuni

    Published 2007-09-01
    “…The population in this research was the society of Dusun Baru Pelokan are 415 KK, the sample taken by the Proportional Random Sampling Method. …”
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    Article
  9. 929

    THE TERM COMBINATION AND THE METAPHOR IN THE OFFICIAL BUSINESS DOCUMENT: COGNITIVE ASPECT by Yuliya I. Demyanchuk.

    Published 2023-05-01
    “…The research value of the sampling consists in the fact that the selected terminological phrases lead to an improvement of their understanding and the effective practical application of the research. …”
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    Article
  10. 930
  11. 931
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  13. 933

    Relationship between Environmental Factors and Menarche Of 11-14 Year Old Students in Rasht City by Shiva Salehi, Sedigheh Pakseresht, Seyedeh Noshaz Mirhaghjoo, Ehsan KazemnejadLeili

    Published 2016-12-01
    “…Methods: This is a descriptive-analytic study conducted on 700 female students in elementary and secondary schools in Rasht city. The sampling method was conducted on at two-stage cluster random sampling basis. …”
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    Article
  14. 934

    Research on Hyperspectral Inversion of Soil Organic Carbon in Agricultural Fields of the Southern Shaanxi Mountain Area by Yunhao Han, Bin Wang, Jingyi Yang, Fang Yin, Linsen He

    Published 2025-02-01
    “…For feature band selection, three methods were utilized: Variable Importance Projection (VIP), Competitive Adaptive Reweighted Sampling (CARS), and Stepwise Projection Algorithm (SPA). …”
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    Article
  15. 935

    A novel ddPCR™ assay for eDNA detection and quantification of Greater Amberjack Seriola dumerilli and three congeners in US waters: challenges and application to fisheries independ... by P. Joana Dias, Ryan Lehman, Bryan L. Huerta-Beltrán, Ana Wheeler, Crystal L. Hightower, Jessica Heise, Theodore Switzer, Clint Rhode, J. Marcus Drymon, Lynne Stokes, Mark A. Albins, Sean Powers, Nicole Phillips

    Published 2025-01-01
    “…Both eDNA and camera gears detected the presence of S. dumerili and S. rivoliana at both sites and all sampling days, but not S. fasciata and S. zonata. eDNA concentration data was higher for S. dumerili than S. rivoliana at both sites for all sampling days, in line with abundance patterns obtained from camera gears. …”
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    Article
  16. 936

    Efficient 3D imaging method of MIMO radar for moving target by Wei WANG, Ziying HU, Jia’nan YUE

    Published 2019-07-01
    “…When compressive sensing (CS) was used to achieve sparse imaging of moving targets,the Doppler frequency caused by motion will increase the processing dimension,change the center frequency of echo and worsen the mutual coherence property of measurement matrix.In order to improve the three-dimensional (3D) imaging performance of MIMO radar for moving targets,an efficient method was proposed.In each dimension,the distribution information of targets was searched respectively and a new low-dimensional measurement matrix was reconstructed accordingly,so the targets’ area was narrowed down.At the same time,in order to optimize the mutual coherence property of measurement matrix,Bayesian method was used to optimize the velocity-dimensional projection matrix to reduce the strong mutual coherence brought by sampling of Doppler frequency,then the efficient sparse imaging could be achieved.The simulation results show that proposed method can improve the efficiency,accurate imaging performance with efficient.…”
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  17. 937

    渐开线塑料齿轮齿廓偏差影像法测量的不确定度和抽样检验统计特性 by 郑卫, 许耀东

    Published 2012-01-01
    “…Applying projection method,the involute plastic gear tooth profile deviation is measured.As plastic gear tooth profile is much influenced by mechanical stress and thermal stress in machining,thus causing more tooth profile strain,to reflect precisely the measuring result of plastic gear tooth profile deviation,and confirm the precision level of it,the rotation bias error,rotation division error,aiming indication error and repeating measuring error are appraised by A series uncertainty and B series uncertainty.Trough analysis by the statistic range controlling chart,a same conclusion is reached.Combining single tooth profile deviation measurement with random sampling inspection,the accuracy grade of plastic gear tooth profile deviation is confirmed,which is out of the national standard range of gear tooth profile accuracy grade.Thus,the tested plastic gear by machining is more used in display in laboratory than in industry.…”
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  18. 938

    Preliminary Study on the Structure of Fungal Communities in Artificial Reef Areas in the Northern Yellow Sea by Jiamin Yan, Yue Yue, Shengkai Lin, Hanshitong Gu, Ziyi Han, Qingxia Li, Tao Tian, Xu Wei, Zhongxin Wu

    Published 2025-02-01
    “…The construction of artificial reefs is the primary ecological project of marine ranching and one of the most important methods of creating habitats for marine organisms. …”
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  19. 939

    Evaluation of Rural Housing Structural Transformations Based on the Rural Livelihood; Case Study : Riab Village in Khorasan Razavi Province by Abasalt Askari Rabori, Shahab Abbaszadeh, Ali Asghar Abroon

    Published 2017-12-01
    “…The grassroots of such changes leads to the top-down regional planning and development projections according to the theories discussed in modern geography. …”
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  20. 940

    Designing the outsourcing model in central government organizations by Mahnaz Moradi, Morteza Ghasemi, Maryam Majidi, Gholamreza Amjadi

    Published 2025-02-01
    “…The statistical population of the research includes general managers of Markazi Province, 152 of whom were selected using Morgan's table, and the sampling method in this research is random sampling. …”
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    Article