Large-Scale Field Trials on Dense Vapour Dispersion

1985 ◽  
pp. 179-189 ◽  
Author(s):  
J. McQuaid ◽  
B. Roebuck ◽  
D. G. Wilde
Keyword(s):  
Large Scale ◽  
Field Trials ◽  
Scale Field ◽  
Large Scale Field

scholarly journals Off-Site Lime Stabilisation as an Option to Treat Pit Latrine Faecal Sludge for Emergency and Existing On-Site Sanitation Systems

2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Wilson Greya ◽  
Bernard Thole ◽  
Catherine Anderson ◽  
Flavius Kamwani ◽  
Jan Spit ◽  
...  
Keyword(s):  
Large Scale ◽  
Buffer Capacity ◽  
Hydrated Lime ◽  
Field Trials ◽  
Small Scale ◽  
E Coli ◽  
Scale Field ◽  
Large Scale Field ◽  
Sanitation Systems ◽  
Faecal Sludge

Off-site lime stabilisation for treating faecal sludge was assessed by undertaking small-scale (35 L) and large-scale (600 L) field trials in Blantyre, Malawi. Hydrated lime was dosed to maintain pH 10, pH 10.5, pH 11, pH 11.5, and pH 12 depending on the buffer capacity of the faecal sludge in the four replica small-scale field trials. Significant reduction of E. coli to below the detection limit of 104 CFU/100 mL within 1 hour of treatment was reported for pH > 11. Based on the small-scale findings, large-scale field trials were conducted and greater than 3 log removal of E. coli was observed under pH 12 conditions. Therefore, based on the study, off-site lime stabilisation by dosing lime in the range of 10–35% w/w (dry solid basis), depending on the buffer capacity and solids content of the sludge to maintain pH > 11, can be used to sanitise faecal sludge during emergencies, as well as for existing on-site sanitation systems.

Pattern recognition of cardoon oil from different large-scale field trials

2018 ◽  
Vol 118 ◽  
pp. 236-245 ◽  
Author(s):  
Suzana Ferreira-Dias ◽  
Jorge Gominho ◽  
Isabel Baptista ◽  
Helena Pereira
Keyword(s):  
Pattern Recognition ◽  
Large Scale ◽  
Field Trials ◽  
Scale Field ◽  
Large Scale Field

Comparative, Large-Scale Field Trials Along the Maine Coast to Assess Management Options to Enhance Populations of the Commercially Important Softshell Clam,Mya arenariaL.

2016 ◽  
Vol 35 (4) ◽  
pp. 711-727 ◽  
Author(s):  
Brian F. Beal ◽  
Denis-Marc Nault ◽  
Hannah Annis ◽  
Pete Thayer ◽  
Heidi Leighton ◽  
...  
Keyword(s):  
Large Scale ◽  
Field Trials ◽  
Management Options ◽  
Scale Field ◽  
Large Scale Field ◽  
Commercially Important ◽  
Softshell Clam

scholarly journals Large-scale Field Trials of Imidacloprid for Control of the Spined Citrus Bug

HortScience ◽  
2003 ◽  
Vol 38 (4) ◽  
pp. 555-559
Author(s):  
J. Mo ◽  
K. Philpot
Keyword(s):  
Natural Enemies ◽  
Large Scale ◽  
New South ◽  
Field Trials ◽  
Negative Effects ◽  
South Wales ◽  
Tree Canopies ◽  
Scale Field ◽  
Large Scale Field ◽  
Orange Trees

Four large-scale field trials were carried out in 2001 and 2002 in lemon orchards in south-western New South Wales to assess the suitability of imidacloprid as a replacement for endosulfan in controlling the spined citrus bug (SCB), Biprorulus bibax Breddin (Hemiptera: Pentatomidae). The results showed that imidacloprid was at least as effective as endosulfan in controlling SCB, even when it was applied at a rate corresponding to half of its discriminate dose (100% kill). The application of imidacloprid did not reduce numbers of wasps and spiders foraging in tree canopies. However, imidacloprid was more toxic than endosulfan to parasitoids of the red scale and to lacewings. These negative effects can be minimised by timing the sprays in winter, when SCB adults congregate in neighbouring orange trees and the numbers of natural enemies of citrus pests are generally low.

Large scale field trials of a soluble glass zinc, cobalt and selenium bolus given to sheep

1998 ◽  
Vol 1998 ◽  
pp. 209-209
Author(s):  
N.R. Kendall ◽  
A.M. Mackenzie ◽  
D.V. Illingworth ◽  
D.W. Jackson ◽  
P.M. Driver ◽  
...  
Keyword(s):  
Large Scale ◽  
Copper Toxicity ◽  
Field Trials ◽  
Ewe Lambs ◽  
The United Kingdom ◽  
Soluble Glass ◽  
Trace Element Status ◽  
Scale Field ◽  
Large Scale Field

Many sheep in the United Kingdom are grazed on pastures deficient in cobalt and selenium. Proprietary products for selenium and cobalt supplementation often contain copper, which in certain breeds can induce copper toxicity. A soluble glass bolus has been manufactured to supply long term sustained release of cobalt and selenium similar to the commercially available Cosecure, but with the copper content being replaced by zinc. Sub clinical zinc deficiency has been suggested to be involved in disease conditions such as broken mouth periodontitis, footrot and mastitis. Therefore a long term continuous supply of zinc may be beneficial in these situations. This trial was designed to examine the effect of administering a zinc, cobalt and selenium soluble glass bolus on trace element status of over-wintered ewe lambs.

Carrousel Sprayer: A Self‐Cleaning Plot Sprayer for Large‐Scale Field Trials

1996 ◽  
Vol 88 (2) ◽  
pp. 250-252
Author(s):  
Dale Loussaert
Keyword(s):  
Large Scale ◽  
Field Trials ◽  
Scale Field ◽  
Large Scale Field ◽  
Self Cleaning

Seed disinfection: II. Large-scale field trials on the disinfection of seed corn with mercury dust disinfectants

1937 ◽  
Vol 27 (1) ◽  
pp. 43-52 ◽  
Author(s):  
W. A. R. Dillon Weston ◽  
F. Hanley ◽  
J. R. Booer
Keyword(s):  
Large Scale ◽  
Harmful Effect ◽  
Field Trials ◽  
Plant Population ◽  
Net Blotch ◽  
Seed Corn ◽  
Scale Field ◽  
Seed Disinfection ◽  
Large Scale Field ◽  
Harmful Effects

1. Treatment in bulk of the grain of wheat, barley, winter oats and spring oats with a proprietary dust, and two experimental dusts A and B which contained organic compounds of mercury, had no harmful effect on germination when drilling followed shortly after treatment. In the case of spring oats, drilling was delayed 7½ weeks after treatment without any harmful effects on germination.2. The proprietary and experimental dusts both proved effective in controlling bunt disease of wheat, and the leaf-stripe and net-blotch diseases of barley.3. In the case of barley, the proprietary and experimental dusts both increased the speed of “brairding” but not the final plant population. This hastening of seedling growth did not lead to a higher yield.4. In the case of winter oats, only the experimental dust A gave a significant increase in plant population and a satisfactory control of the loose smut disease.

scholarly journals Small-scale field assessment of efficacy of the autodissemination approach against Aedes sp. in an urban area

2020 ◽  
Author(s):  
Ahmad Mohiddin Mohd Ngesom ◽  
Hidayatulfathi Othman ◽  
Rawaida Bahauddin ◽  
Nazni Wasi Ahmad ◽  
Lee Han Lim ◽  
...  
Keyword(s):  
Vector Control ◽  
Large Scale ◽  
Field Trials ◽  
Control Programme ◽  
Small Scale ◽  
Vector Control Programme ◽  
Breeding Habitats ◽  
Scale Field ◽  
Large Scale Field ◽  
Future Evaluation

AbstractThis is the first study to evaluate the efficacy of an autodissemination approach, as suggested by WHO. Therefore, the efficacy of an autodissemination approach in small-scale field trials against wild Aedes sp. population was evaluated in an urbanized setting, Malaysia. Lethal ovitraps enhanced with pyriproxyfen were used to control Aedes sp. populations at treatment sites, with the autodissemination activity was assessed using the WHO larval bioassays. Lethal ovitraps enhanced with pyriproxyfen effectively reduced of Aedes sp. population. All autodissemination stations were shown to be visited by Aedes sp. mosquitoes with 100% complete inhibition against eggs and larvae development. In the larvae bioassay, pupae mortality ranged from 14 to 40%. Statistically, a significant reduction of Aedes sp. population in the treatment sites compared to the untreated areas. The study proved for the autodissemination of pyriproxyfen to breeding habitats by wild Aedes sp. This technique is highly potentially for vector control activities. Future evaluation should focus on large-scale field trials.Author SummarySince 2012, Dataran Automobil, Seksyen 15, Shah Alam, was declared as one of the dengue hotspot areas. Major vector control activities were conducted by government, NGOs, social communities, and local authorities, but the number still rising. We conducted a new invention of autodissemination concepts in this area by an entomological study on mosquito populations reduction and dispersal abilities of the technique. We found that the technique has proven to control mosquito populations, but the other factors such as epidemiology link still unclear and need further clarification. Our finding highlighted the effectiveness of autodissemination strategies that can be considered as one of the alternative tools in vector control programme.

scholarly journals Developing a training tool for beginner athletes in woodball

2021 ◽  
Author(s):  
Adi Wijayanto
Keyword(s):  
Large Scale ◽  
Descriptive Analysis ◽  
Field Trials ◽  
Small Scale ◽  
Quantitative Descriptive Analysis ◽  
Training Tool ◽  
Scale Field ◽  
Observation Instruments ◽  
Large Scale Field ◽  
Quantitative Descriptive

This research aimed to produce models of hitting practice tools, which could be used in training beginner woodball athletes in Indonesia. A process of research and development was followed after the model of Gall, Gall, & Borg (2007). Small-scale field trials were first conducted at Gerokgak Woodball Club (GWC), or GerokgakWoodball Club (GWC) Buleleng-Bali, involving 10 athletes (5 males and 5 females).These were followed by large-scale field trials conducted in Pengkab WoodballBuleleng, or Pengkab Woodball Buleleng-Bali, involving 20 athletes (10 males and 10females). Data gathered were both quantitative and qualitative. Quantitative descriptive analysis was employed with the (a) observation instruments/observations of the effectiveness of the tool development model; and (b) the athlete response questionnaire as part of the validation process. Qualitative descriptive analysis was applied to data gained from interviews, observations and fieldnotes in processing suggestions for improvement from material experts, media experts, and practitioners. This research produced an effective and appropriate hitting practice tool for beginners in woodball and a guide/instruction on how to use the tool. These wood practice products can be carried or moved in accordance with training needs (portable), can be used to train the consistency of the punch, increase the frequency of hitting exercises, in the open field (outdoor) or in the building (indoor). The wood practice tool can be used by athletes to practice short stroke, medium, long, or finishing/gating.

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