scholarly journals Zmiany w produkcji i eksporcie malin i wiśni w krajach Europy Południowej i Wschodniej i ich znaczenie dla produkcji w Polsce

2019 ◽  
Vol 19(34) (2) ◽  
pp. 65-76
Author(s):  
Sylwia Kierczyńska
Keyword(s):  
Small Area ◽  
Production Capacity ◽  
International Markets ◽  
Fruit Production ◽  
Southern Europe ◽  
Fruit Crops ◽  
Large Area ◽  
Production Potential ◽  
Export Volume ◽  
Lower Production

The aim of the study was to examine the changes in production and export of raspberries and sour cherries, which are the domain of Polish production on the international markets, in the countries of Eastern and Southern Europe during the 2006-2017. There was used data from Faostat database for the analysis of fruit production, and from Comtrade database for the analysis of export volume. Study points to the development of production and an increase in the export of raspberries in countries with a smaller area of cultivation of this fruit crops and stability in countries with a large area of crops of raspberries. In the case of sour cherries, in most countries, both large and small area plantings, production potential, and volume of production of fruit of this species declined. The export of sour cherries increased particularly from countries with less potential in the production of sour cherries. The development of the production and export of raspberries from countries with lower production capacity may in the future be competition for Poland on the international markets.

scholarly journals An approach for experiment evaluations for multiple harvests crops based on non-linear regression

2021 ◽  
Vol 39 (3) ◽  
pp. 250-257
Author(s):  
Alessandro Dal’Col Lúcio ◽  
Maria Inês Diel ◽  
Bruno G Sari
Keyword(s):  
Linear Regression ◽  
Growth Models ◽  
Fruit Production ◽  
Production Cycle ◽  
Total Production ◽  
Biological Processes ◽  
Production Potential ◽  
Non Linear ◽  
Using Data ◽  
The Moment

ABSTRACT Biologically based growth models can be an alternative in identifying the productive response of multiple harvest vegetables. By interpreting the estimates of the parameters of the models, it is possible to estimate the total production, the rate of fruit production, and the moment when the crop reaches its maximum production potential. Besides, by estimating confidence intervals, these responses can be compared between genotypes or between different treatments. Therefore, the purpose of this manuscript is to present a literature review, and a detailed step-by-step, to interpreting the evolution of the production cycle of vegetables with multiple harvests crops based on non-linear regression. All the requirements that must be met in this type of analysis were presented in detail based on non-linear regression, providing the necessary steps for this type of analysis in details. Demonstration is given using data from strawberry cultivation along with the associated R scripts and interpretation of analysis output in material supplemental. This approach can allow for more relevant inferences than standard means analyses through better examination and modeling of the underlying biological processes.

scholarly journals Developing an Internationalization Strategy Using Diffusion Modeling: The Case of Greater Amberjack

Fishes ◽  
2019 ◽  
Vol 4 (1) ◽  
pp. 12 ◽  
Author(s):  
Edwin Nijssen ◽  
Machiel Reinders ◽  
Athanasios Krystallis ◽  
Gemma Tacken
Keyword(s):  
Production Capacity ◽  
International Markets ◽  
Diffusion Modeling ◽  
Domestic Markets ◽  
Internationalization Strategies ◽  
Greater Amberjack ◽  
Internationalization Strategy ◽  
And Diffusion ◽  
New Fish Species ◽  
Viable Business

For farmers of new fish species, market adoption is needed in order to grow a viable business. Farmers may try to sell the new species in their firms’ domestic markets, but they might also look at other markets. However, as markets are becoming more global and competitors more international, considering internationalization may be a necessity rather than a choice. Using diffusion modelling, and based on results of an online supermarket experiment, the innovation and imitation parameters are estimated and diffusion curves for five countries predicted in an attempt to determine the best lead market for introducing fillets of farmed greater amberjack (Seriola dumerili). The production capacity consequences of implementing different internationalization strategies (i.e. “sprinkler” and “waterfall”) were also explored. A waterfall strategy refers to the sequential introduction of a product in different markets, whereas the sprinkler strategy concerns the simultaneous introduction of a product in multiple international markets. Since a sprinkler approach requires many resources and the ability to quickly ramp up production capacity, a waterfall approach appears more suitable for farmers of greater amberjack. Italy and Spain appear to be the best lead markets for greater amberjack farmers to enter first.

Carbon Nanotubes: Present and Future Commercial Applications

Science ◽  
2013 ◽  
Vol 339 (6119) ◽  
pp. 535-539 ◽  
Author(s):  
Michael F. L. De Volder ◽  
Sameh H. Tawfick ◽  
Ray H. Baughman ◽  
A. John Hart
Keyword(s):  
Thin Film ◽  
Carbon Nanotubes ◽  
Chemical Modification ◽  
Production Capacity ◽  
Rechargeable Batteries ◽  
Large Area ◽  
Automotive Parts ◽  
Sporting Goods ◽  
Commercial Applications ◽  
Water Filters

Worldwide commercial interest in carbon nanotubes (CNTs) is reflected in a production capacity that presently exceeds several thousand tons per year. Currently, bulk CNT powders are incorporated in diverse commercial products ranging from rechargeable batteries, automotive parts, and sporting goods to boat hulls and water filters. Advances in CNT synthesis, purification, and chemical modification are enabling integration of CNTs in thin-film electronics and large-area coatings. Although not yet providing compelling mechanical strength or electrical or thermal conductivities for many applications, CNT yarns and sheets already have promising performance for applications including supercapacitors, actuators, and lightweight electromagnetic shields.

scholarly journals Modification of large area Cu2O/CuO photocathode with CuS non-noble catalyst for improved photocurrent and stability

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
G. Panzeri ◽  
M. Cristina ◽  
M. S. Jagadeesh ◽  
G. Bussetti ◽  
L. Magagnin
Keyword(s):  
Surface Modification ◽  
Cuprous Oxide ◽  
Small Area ◽  
Low Cost ◽  
Compositional Analysis ◽  
Sulfate Solution ◽  
Sodium Sulfate Solution ◽  
Large Area ◽  
Solution Ph ◽  
Sulfur Atmosphere

Abstract In this work, a three-layered heterostructure Cu2O/CuO/CuS was obtained through a low-cost and large-area fabrication route comprising electrodeposition, thermal oxidation, and reactive annealing in a sulfur atmosphere. Morphological, microstructural, and compositional analysis (AFM, SEM, XRD, EDS, XPS) were carried out to highlight the surface modification of cuprous oxide film after oxidation and subsequent sulfurization. Impedance, voltammetric, and amperometric photoelectrochemical tests were performed on Cu2O, Cu2O/CuO, and Cu2O/CuO/CuS photocathodes in a sodium sulfate solution (pH 5), under 100 mW cm−2 AM 1.5 G illumination. A progressive improvement in terms of photocurrent and stability was observed after oxidation and sulfurization treatments, reaching a maximum of − 1.38 mA cm−2 at 0 V versus RHE for the CuS-modified Cu2O/CuO electrode, corresponding to a ~ 30% improvement. The feasibility of the proposed method was demonstrated through the fabrication of a large area photoelectrode of 10 cm2, showing no significant differences in characteristics if compared to a small area photoelectrode of 1 cm2.

scholarly journals Yield Performance of Six Lychee Cultivars Grown at Two Locations in Puerto Rico

2016 ◽  
Vol 26 (6) ◽  
pp. 748-753
Author(s):  
Ricardo Goenaga ◽  
David Jenkins ◽  
Angel Marrero
Keyword(s):  
Puerto Rico ◽  
Ethnic Diversity ◽  
Fruit Production ◽  
Fruit Weight ◽  
University Of Puerto Rico ◽  
Yield Performance ◽  
Agricultural Experiment ◽  
Marketable Fruit ◽  
The University ◽  
Lower Production

The globalization of the economy, increased ethnic diversity, and a greater demand for healthy and more diverse food production has increased the demand for tropical fruits. There is a lack of formal experimentation to determine yield performance and fruit quality traits of lychee (Litchi chinensis) cultivars. Six lychee cultivars (Bosworth-3, Brewster, Groff, Mauritius, Kaimana, Salathiel) grown on Mollisol and Inceptisol soils were evaluated for 8 years at the Adjuntas Agricultural Experiment Station of the University of Puerto Rico (UPR-Adjuntas) and La Balear farm, Adjuntas, Puerto Rico, respectively. At UPR-Adjuntas and La Balear, cultivar Groff had a significantly higher production (257,296 fruit/ha) of total fruit than other cultivars, whereas Salathiel had the lowest. However, total fruit production of ‘Groff’ was not significantly different from ‘Kaimana’ and ‘Bosworth-3’at La Balear. At UPR-Adjuntas, cultivars Groff and Bosworth-3 had significantly higher number of marketable fruit than the rest of the cultivars averaging 171,760 fruit/ha. At La Balear, ‘Kaimana’ had a higher number of marketable fruit, but it was not significantly different from ‘Groff’, ‘Bosworth-3’, and ‘Mauritius’, averaging 291,360 fruit/ha. At both sites, individual fruit weight of marketable fruit was higher in ‘Kaimana’ than the rest of the cultivars. However, at La Balear, there were no significant differences between ‘Kaimana’ and ‘Mauritius’. At both locations, cultivars exhibited erratic production patterns, which were characterized by lower production during 1 or 2 successive years following heavy cropping. At current farm gate prices and fruit yield reported in this study, cultivars Groff, Bosworth-3, and Kaimana can generate a good income for growers, and allow them to diversify crops as part of their farm operations.

Red and yellow emissive carbon dots integrated tandem luminescent solar concentrators with significantly improved efficiency

Nanoscale ◽  
2021 ◽  
Author(s):  
Jiurong Li ◽  
Haiguang Zhao ◽  
Xiujian Zhao ◽  
Xiao Gong
Keyword(s):  
Solar Cells ◽  
Carbon Dots ◽  
Small Area ◽  
Solar Light ◽  
Large Area ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators

Luminescent solar concentrators (LSCs) can collect solar light from a large area and concentrate it to their small-area edges mounted with solar cells for efficient solar-to-electricity conversion. Thus, LSCs show...

High Efficiency Stable a-Si Three Junction 12″ × 13″ Modules

1991 ◽  
Vol 219 ◽  
Author(s):  
Murray S. Bennett ◽  
A. Catalano ◽  
J. Newton ◽  
C. Poplawski ◽  
R. Arya ◽  
...  
Keyword(s):  
Preliminary Data ◽  
Small Area ◽  
High Efficiency ◽  
Scale Up ◽  
Large Area ◽  
Good Resistance ◽  
Photovoltaic Modules ◽  
Area Efficiency ◽  
Efficiency Losses ◽  
Area Deposition

ABSTRACTThree junction a-Si based photovoltaic modules have been made using a design which provides high initial efficiency and good resistance to photodegradation. The cells have a Si/Si/SiGe configuration in which the i-layer in the middle junction is 4000Å thick. The most efficient module measured to date has an aperture area efficiency of 9.82%. This design will limit light-induced efficiency losses to 15% or less, based on small area results, however defect related problems have increased this value to 17 – 23%. Preliminary data on the effect of shunts on stability is presented. We discuss various concerns related to large area deposition and scale-up.

scholarly journals From initial advice statement to export – a 10 year retrospective of Queensland's liquefied natural gas industry

2019 ◽  
Vol 59 (1) ◽  
pp. 58
Author(s):  
Peter Downey ◽  
Jon Thomas ◽  
Mark Stone
Keyword(s):  
Natural Gas ◽  
Production Capacity ◽  
International Markets ◽  
Liquefied Natural Gas ◽  
Project Delivery ◽  
Gas Industry ◽  
Start Up ◽  
Natural Gas Industry ◽  
Project Life ◽  
Oil Gas

A decade on from the submission of project initial advice statements to Queensland Government agencies in 2008, this paper provides a retrospective on the development journey of three integrated coal seam gas (CSG) to liquefied natural gas (LNG) mega-projects currently delivering domestic and international markets. The process from development concept to operating asset is considered from several perspectives including: project rationale, description and delivery, as well as regulatory approvals. Project delivery is further considered in terms of the upstream, midstream and downstream components. The delivery of world first CSG to LNG is discussed in the context of project execution during significant volatility in the global oil, gas and LNG markets. All three projects have successfully completed commissioning and start-up. Although all six trains have been performance tested at name-plate production capacity, current LNG production is below this level. This paper examines their evolution from the initial concepts through to delivery, including current gas reserves and those required to sustain gas supply over expected project life. The paper also considers how these projects and any future expansion of the Queensland LNG industry will be impacted upon by an evolving global LNG market.

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