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Feasibility of Powering All Vehicles with Electricity from Solar and Wind Energy
Nathan Peraino,
Ardeshir Faghri,
Dian Yuan,
Yifan Wang,
Michael Vaughan,
Mingxin Li
Issue:
Volume 8, Issue 4, December 2019
Pages:
127-136
Received:
16 September 2019
Accepted:
11 October 2019
Published:
21 October 2019
Abstract: The effects of global climate change are beginning to exhibit notable impact across the world and within the next 20 years are predicted to worsen and have the potential to become irreversible. It is crucial that sustainable solutions are created and implemented before it is too late. A large part of the solution is the increased use of vehicles powered with renewably sourced electricity rather than fossil fuels. While this technology change is environmentally justified, its feasibility from a land use, economic, and grid integration standpoints must be assessed. This evaluation was performed by utilizing average characteristics of renewable energy technologies, analytic methods, and inferential analysis to determine if vehicles powered by electricity, created from solar panels and wind turbines, is currently feasible for both the United States (US) and the world. It is unfortunate that this proposed solution is only possible on a limited geographic basis since vast economic resources and infrastructure improvements are required to enable an integrated systems level approach of this nature. Overall, the outlook appears grim due to the impending global environmental and human health impacts; however, with a heightened sense of urgency, aggressive implementation program, and increased cooperation between parties with varied interests the effects of global climate change can be significantly reduced.
Abstract: The effects of global climate change are beginning to exhibit notable impact across the world and within the next 20 years are predicted to worsen and have the potential to become irreversible. It is crucial that sustainable solutions are created and implemented before it is too late. A large part of the solution is the increased use of vehicles po...
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Effect of Postharvest Temperatures and Packaging Materials on Shelf Life and Fruit Quality of Selected Hybrid of Sweet Pepper
Md. Abdus Sattar,
Md. Abdul Quddus,
Md. Habibur Rahman,
Md. Ashraf Hossain,
Mohammad Hossain Sarker,
Md. Rabiul Islam
Issue:
Volume 8, Issue 4, December 2019
Pages:
137-145
Received:
29 October 2019
Accepted:
18 November 2019
Published:
2 December 2019
Abstract: Field and laboratory studied were conducted at the research field of Olericulture Division and laboratory of Postharvest Technology Section under the Horticulture Research Center (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur to find out the suitable sweet pepper hybrid (P7×P8) and to determine the appropriate storage temperature and storage material on shelf life and fruit quality of hybrid sweet pepper. The laboratory result reveal that perforated poly bag was found better in reducing fungal decay (6.02%) as well as for better visual appearance and excellent nutritive quality during 10th day of storage irrespective of temperature. The minimum weight loss of fruits was (0.86%) noted at temperature of 4°C kept in perforated poly bags at 10th day of storage. Higher TSS value (5.49% in 10th day and 5.58% in 20th day of storage) was attained under ambient temperature with perforated package. Maximum beta carotene value in fruit (42.78 µg per 100 g) was observed during 10 days storing at perforated poly bag of 4°C temperatures. However, freshness of fruits was up to the marks and senescence of fruits was delayed in 4°C and in perforated poly bag up to 10th day of storage. These temperature (4°C) and perforated poly bag might be afforded a beneficial balance to visual appearance and nutritional status. The results suggest that fruits of sweet pepper at 4°C stored in perforated poly bag for a period of 10th day might be appropriate regarding the firmness, good visual appearance and fruit quality.
Abstract: Field and laboratory studied were conducted at the research field of Olericulture Division and laboratory of Postharvest Technology Section under the Horticulture Research Center (HRC), Bangladesh Agricultural Research Institute (BARI), Gazipur to find out the suitable sweet pepper hybrid (P7×P8) and to determine the appropriate storage temperature...
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A Snapshot of Renewable Energy Research in Sub-Saharan Africa
Sydney Oluoch,
Pankaj Lal,
Bernabas Wolde,
Neeraj Vedwan
Issue:
Volume 8, Issue 4, December 2019
Pages:
146-154
Received:
29 October 2019
Accepted:
18 November 2019
Published:
6 December 2019
Abstract: Global concern over energy security and climate change has resulted in the need to adopt renewable energy technologies. The sub-continent of Sub Saharan Africa (SSA) has lagged in terms of renewable energy development and research, despite having great potential for renewable energy resources. We examined emerging trends in renewable energy research in peer-reviewed publications in-order to identify research gaps, research perspectives, current knowledge and development of renewable energy research over time. We used the bibliometric mapping approach to extract and map the most frequently used keywords. This approach was useful in providing a guideline for insights on current geographic and sectoral hotspots. Temporal analysis confirmed that renewable energy publications experienced a substantial growth with biomass energy publications being the most dominant for the study period. The bibliometric maps confirmed this finding as most of the terms pertained to biomass-related topics. It is notable that there has been a shift of the discussion from the traditional sources of biomass (firewood and charcoal) to modern bio-fuel crops in SSA. From this quantitative review it was evident that the key solutions to bridging development gaps for renewable energy in SSA are interconnected. Adequate research stems from sufficient funding that results in bridging technical gaps (in terms of skill and technology), and information (data and awareness). There is a need for a suitable policy framework backed by political will, enforcement and facilitative governance framework to channel the limited resources towards maximizing gains in renewable energy development in SSA.
Abstract: Global concern over energy security and climate change has resulted in the need to adopt renewable energy technologies. The sub-continent of Sub Saharan Africa (SSA) has lagged in terms of renewable energy development and research, despite having great potential for renewable energy resources. We examined emerging trends in renewable energy researc...
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Response Agronomic Traits of Lentil Varieties to Zinc Fertilization in Calcareous and Terrace Soils of Bangladesh
Md. Ashraf Hossain,
Md. Abdul Quddus,
Md. Abdus Sattar,
Md. Babul Anwar,
Shamima Aktar,
Mohammad Hossain Sarker,
Md. Razzab Ali
Issue:
Volume 8, Issue 4, December 2019
Pages:
155-165
Received:
19 November 2019
Accepted:
29 November 2019
Published:
6 December 2019
Abstract: Zinc (Zn) fertilization is reflected a significant agronomic strategy for global food security. Deficiency of zinc in soils could be caused to decrease the crop yield. Hence an experiment was made over two years at the research farm of Pulses Research Sub-Station of Bangladesh Agricultural Research Institute (BARI), Gazipur and in the research farm of Regional Agricultural Research Station (RARS), Ishwardi and Jessore, during Rabi season to assess the sensitivity of different varieties of lentil to Zn fertilization and evaluate the Zn in terms of yield and Zn mineral content in seed. There were 12 treatment combinations comprising six lentil varieties (V1 = BARI Masur-2, V2 = BARI Masur-3, V3 = BARI Masur-4, V4 = BARI Masur-5, V5 = BARI Masur-6 and V6 = BARI Masur-7) and two levels of zinc (0 and 2 kg ha-1). The experiment was laid out in split-plot design with three replications. Results reveal that growth, yield attributes and yield varied positively by zinc level and variety. Among the varieties, BARI Masur-7 followed by BARI Masur-6 gave the highest seed yield. Interaction of variety and zinc the highest mean seed yield (1568 kg ha-1 at Gazipur, 2396 kg ha-1 at Ishurdy and 1639 kg ha-1 at Jashore) produced by the treatment V6Zn2. The improved protein content (28.5% at Gazipur, 28.9% at Ishurdy and 29% at Jashore) and zinc content (70.2 ppm at Gazipur, 73.6 ppm at Ishurdy and 69.9 ppm at Jashore) was achieved in V6Zn2 treatment. The result, suggest that 2 kg Zn ha-1 could be applied in any lentil variety for quality improvement and yield maximization in terrace and calcareous soils of Bangladesh. The current study recommended conducting another experiment for further monitoring and determining the appropriate Zn dose for lentil production through application of different zinc rates in Zn- deficient soils.
Abstract: Zinc (Zn) fertilization is reflected a significant agronomic strategy for global food security. Deficiency of zinc in soils could be caused to decrease the crop yield. Hence an experiment was made over two years at the research farm of Pulses Research Sub-Station of Bangladesh Agricultural Research Institute (BARI), Gazipur and in the research farm...
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