Experimental Study on Selection of Aperture Pattern Based on Image Statistics

Author(s):  
Lu Xiao ◽  
Zengpu Xu ◽  
Dexue Bi
2016 ◽  
Vol 874 ◽  
pp. 291-296 ◽  
Author(s):  
Lin Li ◽  
Jun Wang ◽  
Huai Zhong Li

An experimental study is reported to characterise the femtosecond (FS) laser grooving process for Germanium (Ge) substrates. The effects of process parameters, including laser fluence, pulse repetition rate and scan speed, on the groove characteristics, material removal rate (MRR) and heat affected zone (HAZ) size are discussed. It is shown that with properly selected process parameters, high quality micro-grooves can be obtained on Ge wafers. Recommendations are finally made on the selection of the most appropriate process parameters for FS micro-grooving of Ge substrates.


2020 ◽  
Vol 5 (2) ◽  
pp. 62-67
Author(s):  
Oom Linda Rukmana ◽  
Kusbandiami ◽  
Maghfirotul Lathifah

This study aims to determine the effect of the use of cognitive restructuring strategies in group counseling on class VIII G students' confidence in SMP PGRI 1 BUDURAN SIDOARJO. The research design used was a Pre-Experimental study with a One Group Pretest-Postest Design. The population of class VIII G students at SMP PGRI 1 BUDURAN SIDOARJO was 30 students, then 4 students were taken as research samples using purposive sampling techniques. The selection of this sample was chosen based on the results of students' low self-confidence scores through filling in the scale of student confidence measurement. The results of this study  was found that there was no significance changed in the use of cognitive restructuring  in counseling group on the confidence of students of class VIII G in SMP PGRI 1 BUDURAN SIDOARJO.


2020 ◽  
Vol 5 (4(73)) ◽  
pp. 12-18
Author(s):  
G.T. Bekmirzaev ◽  
I.A. Begmatov ◽  
D.B. Yulchiev

The purpose of the experimental study was the selection of salt tolerant crops and the search for useful horticultural species for growing them on saline lands. The experimental study was conducted at the University of Algarve, Portugal, in a greenhouse. The following vegetable crops were selected for research: lettuce (Lactuca sativaL), New Zealand spinach (Tetragonia tetragonioides) and garden purslane (Portulaca oleracea). Experimental results showed that New Zealand spinach and garden purslane have high potential as species resistant to high salt content and are therefore recommended for cultivation in order to reduce soil salinity. The above crops, mainly New Zealandspinach, are good types of garden crops with high useful qualities and productivity. Therefore, it has been shown that this method is a clean and environmentally friendly tool to prevent salinization and maintain the sustainability of agricultural systems


2020 ◽  
Vol 25 (72) ◽  
pp. 252-270
Author(s):  
Cruz García Lirios

OBJECTIVE: The main objective of this wok is the exploration of two preponderant dimensions of professional training. MATERIAL AND METHOD: An experimental study was carried out with a non-probabilistic selection of 300 students, considering their insertion in professional practices and social service in organizations allied with the public university. RESULTS: A dual structure of norms and values found with eight indicators explain the formation of job expectations in future professionals. CONCLUSION: The design limited the findings to the research scenario, suggesting the inclusion of other factors as well as the comparison of the model in other vocational training contexts such as the companies that participate in government subsidies to promote the first job in young graduates.


2019 ◽  
Vol 43 (4) ◽  
pp. 653-660 ◽  
Author(s):  
M.V. Gashnikov

Adaptive multidimensional signal interpolators are developed. These interpolators take into account the presence and direction of boundaries of flat signal regions in each local neighborhood based on the automatic selection of the interpolating function for each signal sample. The selection of the interpolating function is performed by a parameterized rule, which is optimized in a parametric lower dimensional space. The dimension reduction is performed using rank filtering of local differences in the neighborhood of each signal sample. The interpolating functions of adaptive interpolators are written for the multidimensional, three-dimensional and two-dimensional cases. The use of adaptive interpolators in the problem of compression of multidimensional signals is also considered. Results of an experimental study of adaptive interpolators for real multidimensional signals of various types are presented.


2019 ◽  
Vol 14 (5) ◽  
pp. 563-567 ◽  
Author(s):  
Nils Ellebrecht

ABSTRACTIn the 19th century, triage emerged as an administrative concept to overcome the unjust and medically unreasonable consequences of an unsystematic adhoc selection of casualties. Until today, however, triage concepts are often applied incorrectly. High over-triage rates are a well-known phenomenon, which increase mortality rates. In order to examine their frequent occurrences, the article discusses different reasons and presents results of an experimental study. Two triage exercises were conducted: a paper-based triage exercise and a real-world simulation. Both exercises used the same case-vignettes consisting of 5 pairs. Each pair described a patient with the same injury pattern and vital parameters but with differing behaviour (calm/highly excited). Different behavior has a minor but no significant effect on over-triage rates. Over-triage is significantly higher in the real-world simulation than in the paper exercise. This is explained by the characteristics of face-to-face situations themselves: they are more complex and ambiguous, and hold more normative power. Accordingly, over-triage is understood as a means to resolve unclear situations (“better to over- than to under-triage”) and to comply with normative demands “within” the strict margins of an administrative concept.


Author(s):  
R S Birch ◽  
N Jones

The design and selection of transducers is an important consideration for the measurement of impact loads. This paper examines a load-measuring transducer based on a non-contact laser Doppler principle. An experimental study assesses the deformations and velocities obtained using a laser Doppler velocimeter and compares the mean and peak loads with those recorded by an accelerometer and a load cell. The paper concludes that this device is a valuable tool in the structural impact research field.


Author(s):  
Shilpa Chauhan ◽  
Raj Kumar Mittal ◽  
A. Lohar ◽  
Vinod Kumar Sood ◽  
Ranjana Patial

An attempt was made to study blackgram germplasm with an objective to develop genetically diverse genotypes accompanied with high heritable components of yield contributing traits. The experimental material comprised of 21 blackgram genotypes, was examined during kharif 2015 and 2016. Experimental study conducted during kharif 2015, was mainly relied on selection of transgressive segregants, which were further analyzed in Compact Family Block Design during kharif 2016. The results depicted that families and progenies within families were significantly different for majority of the traits and found to be highly variable for biological yield, harvest index and seed yield. High heritability coupled with high genetic advance were recorded for plant height (74.15%, 33.12%), branches per plant (84.34%, 40.55%), biological yield (83.51%, 69.11%) and seed yield (84.50%, 66.11%). Thus, the present findings could be beneficial to develop superior genotypes through selection in blackgram breeding program.


2011 ◽  
Vol 415-417 ◽  
pp. 594-597 ◽  
Author(s):  
Hua Xu ◽  
Cui Jiao Liao ◽  
Qing Ming Weng

To improve the self-sharpening ability and increase clearance for debris of metal bonded diamond grinding wheel, the porosity structure is applied to the diamond grinding wheel in this paper. By selecting different inducers diamond composites are burned under appropriate agglomeration condition. The experiment results indicate that diamond composites obtained through two certain inducers can meet both the demand of pore-creating and intensity, so can be used to make wheels. This conclusion lays a foundation for further study.


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