S0302-3-2 Full-Field Evaluation of Fatigue Damage in Steel Using Laser

2009 ◽  
Vol 2009.1 (0) ◽  
pp. 153-154
Author(s):  
Akira KATO ◽  
Satoshi KOHMURA
Keyword(s):  
Fatigue Damage ◽  
Field Evaluation ◽  
Full Field

scholarly journals Full Field Evaluation of the Stress Tensor Components in 2D Photoelasticity Via Computer Software

2016 ◽  
Vol 66 (2) ◽  
pp. 63-66
Author(s):  
Zbyněk Paška ◽  
František Fojtík ◽  
Petr Ferfecki
Keyword(s):  
Plastic Deformation ◽  
Numerical Solution ◽  
Stress Tensor ◽  
Computer Software ◽  
Field Evaluation ◽  
Full Field ◽  
Matlab Program

Abstract The aim of this work is to find out the components of stress tensor in plane specimens. For this purpose the photoelasticity methodology is used. In order to make this technique more comfortable for use, there was developed an algorithm in MATLAB program. The results are compared with numerical solution. The main advantages of the developed algorithm are the speed and the capabilities to extend to analyze the plastic deformation and strain conditions in the material during forming processes.

scholarly journals Full-field evaluation of the onset of microplasticity in a steel specimen

2009 ◽  
Vol 41 (11) ◽  
pp. 1207-1222 ◽  
Author(s):  
Raphaël Moulart ◽  
René Rotinat ◽  
Fabrice Pierron
Keyword(s):  
Steel Specimen ◽  
Field Evaluation ◽  
Full Field

scholarly journals Biological Activity of Sumilarv 0.5G against Anopheles gambiae sensu stricto and Anopheles arabiensis in Northern Tanzania

2019 ◽  
Vol 1 (1) ◽  
pp. 35-42
Author(s):  
Eliningaya J. Kweka ◽  
Aneth M. Mahande ◽  
Shandala Msangi ◽  
Subira Sayumwe ◽  
Johnson O. Ouma ◽  
...  
Keyword(s):  
Biological Activity ◽  
Active Ingredient ◽  
Adult Emergence ◽  
Field Evaluation ◽  
Insect Growth Regulator ◽  
Field Conditions ◽  
World Health ◽  
Natural Habitats ◽  
Full Field ◽  
Northern Tanzania

Background: Sumilarv 0.5G (Sumitomo Chemical Co., Ltd., Tokyo, Japan) is a granular insecticide developed for the control of mosquito and fly aquatic stages. The active ingredient is pyriproxyfen (4-phenoxyphenyl (RS)-2-(2 – pyridyloxy) propyl ether), a juvenile hormone analogue that acts as an insect growth regulator. Sumilarv 0.5G functions by inhibition of adult emergence from pupae. In this study, the Tropical Pesticides Research Institute in Tanzania carried out laboratory, semifield, and full-field evaluation on a new candidate of pupicide, Sumilarv 0.5G. The present study, therefore, sought to test the bioefficacy of Sumilarv 0.5G in laboratory, semifield, and full-field conditions in Mabogini, northern Tanzania. Methods: Standard World Health Organization laboratory bioefficacy evaluations of Sumilarv 0.5G and untreated microcosms were prepared and monitored for inhibition of the larvae introduced to the habitats, while field plots were monitored for 5 weeks after the introduction of Sumilarv 0.5G using manufacturer-recommended doses. Results: Sumilarv 0.5G biolarvicide was highly efficacious in its pupicidal effect, with an adult emergence inhibition rate of up to 90% in all conditions. In both laboratory and semifield experiments, the emergence inhibition was dose-dependent, with the lowest adult emergence being recorded in association with the highest Sumilarv 0.5G dose of 0.03 ppm of active ingredient. Under field conditions, the application rate recommended by the manufacturer – 5 mg ai per m2 – reduced the adult emergence rate by 90% to 96% for up to 5 weeks. Conclusion: We demonstrated the long-lasting biological activity of Sumilarv 0.5G under field conditions. Notably, the field efficacy was attained using the recommended dose of 5 mg per m2, thus making it economical to apply this product, which is capable of inhibiting mosquito productivity in natural habitats for longer periods than achieved by existing products, the efficacy of which is usually about 1 week.

Biological Activity of Sumilarv 0.5G against Anopheles gambiae sensu stricto and Anopheles arabiensis in Northern Tanzania

2019 ◽  
Vol 1 (1) ◽  
pp. 35-42
Author(s):  
Eliningaya J. Kweka ◽  
Aneth M. Mahande ◽  
Shandala Msangi ◽  
Subira Sayumwe ◽  
Johnson O. Ouma ◽  
...  
Keyword(s):  
Biological Activity ◽  
Active Ingredient ◽  
Adult Emergence ◽  
Field Evaluation ◽  
Insect Growth Regulator ◽  
Field Conditions ◽  
World Health ◽  
Natural Habitats ◽  
Full Field ◽  
Northern Tanzania

Background: Sumilarv 0.5G (Sumitomo Chemical Co., Ltd., Tokyo, Japan) is a granular insecticide developed for the control of mosquito and fly aquatic stages. The active ingredient is pyriproxyfen (4-phenoxyphenyl (RS)-2-(2 – pyridyloxy) propyl ether), a juvenile hormone analogue that acts as an insect growth regulator. Sumilarv 0.5G functions by inhibition of adult emergence from pupae. In this study, the Tropical Pesticides Research Institute in Tanzania carried out laboratory, semifield, and full-field evaluation on a new candidate of pupicide, Sumilarv 0.5G. The present study, therefore, sought to test the bioefficacy of Sumilarv 0.5G in laboratory, semifield, and full-field conditions in Mabogini, northern Tanzania. Methods: Standard World Health Organization laboratory bioefficacy evaluations of Sumilarv 0.5G and untreated microcosms were prepared and monitored for inhibition of the larvae introduced to the habitats, while field plots were monitored for 5 weeks after the introduction of Sumilarv 0.5G using manufacturer-recommended doses. Results: Sumilarv 0.5G biolarvicide was highly efficacious in its pupicidal effect, with an adult emergence inhibition rate of up to 90% in all conditions. In both laboratory and semifield experiments, the emergence inhibition was dose-dependent, with the lowest adult emergence being recorded in association with the highest Sumilarv 0.5G dose of 0.03 ppm of active ingredient. Under field conditions, the application rate recommended by the manufacturer – 5 mg ai per m2 – reduced the adult emergence rate by 90% to 96% for up to 5 weeks. Conclusion: We demonstrated the long-lasting biological activity of Sumilarv 0.5G under field conditions. Notably, the field efficacy was attained using the recommended dose of 5 mg per m2, thus making it economical to apply this product, which is capable of inhibiting mosquito productivity in natural habitats for longer periods than achieved by existing products, the efficacy of which is usually about 1 week.

Biological Activity of Sumilarv 0.5G against Anopheles gambiae sensu stricto and Anopheles arabiensis in Northern Tanzania

2019 ◽  
Vol 1 (1) ◽  
pp. 35-42
Author(s):  
Eliningaya J. Kweka ◽  
Aneth M. Mahande ◽  
Shandala Msangi ◽  
Subira Sayumwe ◽  
Johnson O. Ouma ◽  
...  
Keyword(s):  
Biological Activity ◽  
Active Ingredient ◽  
Adult Emergence ◽  
Field Evaluation ◽  
Insect Growth Regulator ◽  
Field Conditions ◽  
World Health ◽  
Natural Habitats ◽  
Full Field ◽  
Northern Tanzania

Background: Sumilarv 0.5G (Sumitomo Chemical Co., Ltd., Tokyo, Japan) is a granular insecticide developed for the control of mosquito and fly aquatic stages. The active ingredient is pyriproxyfen (4-phenoxyphenyl (RS)-2-(2 – pyridyloxy) propyl ether), a juvenile hormone analogue that acts as an insect growth regulator. Sumilarv 0.5G functions by inhibition of adult emergence from pupae. In this study, the Tropical Pesticides Research Institute in Tanzania carried out laboratory, semifield, and full-field evaluation on a new candidate of pupicide, Sumilarv 0.5G. The present study, therefore, sought to test the bioefficacy of Sumilarv 0.5G in laboratory, semifield, and full-field conditions in Mabogini, northern Tanzania. Methods: Standard World Health Organization laboratory bioefficacy evaluations of Sumilarv 0.5G and untreated microcosms were prepared and monitored for inhibition of the larvae introduced to the habitats, while field plots were monitored for 5 weeks after the introduction of Sumilarv 0.5G using manufacturer-recommended doses. Results: Sumilarv 0.5G biolarvicide was highly efficacious in its pupicidal effect, with an adult emergence inhibition rate of up to 90% in all conditions. In both laboratory and semifield experiments, the emergence inhibition was dose-dependent, with the lowest adult emergence being recorded in association with the highest Sumilarv 0.5G dose of 0.03 ppm of active ingredient. Under field conditions, the application rate recommended by the manufacturer – 5 mg ai per m2 – reduced the adult emergence rate by 90% to 96% for up to 5 weeks. Conclusion: We demonstrated the long-lasting biological activity of Sumilarv 0.5G under field conditions. Notably, the field efficacy was attained using the recommended dose of 5 mg per m2, thus making it economical to apply this product, which is capable of inhibiting mosquito productivity in natural habitats for longer periods than achieved by existing products, the efficacy of which is usually about 1 week.

scholarly journals In-Field Comparative Study of Landraces vs. Modern Wheat Genotypes under a Mediterranean Climate

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2612
Author(s):  
Sivan Frankin ◽  
Rajib Roychowdhury ◽  
Kamal Nashef ◽  
Shahal Abbo ◽  
David J. Bonfil ◽  
...  
Keyword(s):  
Green Revolution ◽  
Biomass Productivity ◽  
Field Evaluation ◽  
Lodging Resistance ◽  
Full Field ◽  
Management Protocol ◽  
Supplementary Irrigation ◽  
Agronomic Potential ◽  
Modern Wheat ◽  
Wheat Landraces

The Near East climate ranges from arid to a Mediterranean, under which local wheat landraces have been grown for over millennia, assumingly accumulating a unique repertoire of genetic adaptations. In the current study, we subjected a subset of the Israeli Palestinian Landraces (IPLR) collection (n = 19: durum and bread wheat landraces, modern wheat cultivars, and landraces mixtures) to full-field evaluation. The multifield experiment included a semiarid site (2018–2019, 2019–2020) under low (L) and high (H) supplementary irrigation, and a Mediterranean site (2019–2020). Water availability had a major impact on crop performance. This was reflected in a strong discrimination between environments for biomass productivity and yield components. Compared to landraces, modern cultivars exhibited significantly higher grain yield (GY) across environments (+102%) reflecting the effect of the Green Revolution. However, under the Gilat19 (L) environment, this productivity gap was significantly reduced (only +39%). Five excelling landraces and the durum mix exhibited good agronomic potential across all trails. This was expressed in relatively high GY (2.3–2.85 t ha−1), early phenology (86–96 days to heading) and lodging resistance. Given the growing interest of stakeholders and consumers, these might be considered future candidates for the local artisanal wheat grain market. Yet, this step should be taken only after establishing an adjustable field management protocol.

Sign in / Sign up

Export Citation Format

Share Document