Progress Towards Low Carbon Fuels in the Pacific: Prospects and Challenges

2015 ◽  
pp. 335-356
Author(s):  
Pritika Bijay ◽  
Anirudh Singh
Keyword(s):  
Low Carbon ◽  
The Pacific

scholarly journals Comparison of Product Sustainability of Conventional and Low-Carbon Apples in Korea

2020 ◽  
Vol 12 (22) ◽  
pp. 9364
Author(s):  
Ik Kim ◽  
Chan-young Song ◽  
Eui-chan Jeon
Keyword(s):  
Environmental Assessment ◽  
Agricultural Sector ◽  
Primary Data ◽  
Factor X ◽  
Low Carbon ◽  
Iso 14040 ◽  
Greenhouse Gas Reduction ◽  
The Pacific ◽  
Relative Product ◽  
One Year

Apple is Korea’s most representative fruit. This study calculated absolute and relative product sustainability through environmental and cost assessments on apples by cultivation farming. The ISO 14040 life cycle assessment (LCA) methodology was used as a method of environmental assessment. Primary data for one year, 2018, were collected for the environmental assessment of conventional and low-carbon farming. The eco-points of apples cultivated by conventional and low-carbon farming using the LCA 2.07 × 10−3 and 1.17 × 10−3, respectively. The environmental impact of conventional apples was 78% higher than that of low-carbon apples. Cost assessment results show that every 1 kg of conventional and low-carbon apples costs USD 1.93 and USD 3.17, respectively, and their profits were USD 0.20 and USD 1.00, respectively. The total cost of conventional apples was lower than that of low-carbon apples, but its profit was one-fifth that of low-carbon apples. The UN Economic and Social Commission for Asia and the Pacific (UN ESCAP)’s eco-efficiency method was used to calculate absolute sustainability, and the concept of factor X was introduced to evaluate relative sustainability. Absolute sustainability for conventional and low-carbon apples was 96.01 (USD/eco-point) and 853.03 (USD/eco-point), respectively. Low-carbon apples’ relative sustainability was computed in factor 8.89. Finally, if all farms that grow conventional apples shift to cultivating low-carbon apples, they can save 58,111 tons of carbon dioxide. This amount is at least 3.4% of the nation’s greenhouse gas reduction in the agricultural and livestock sectors. This study provides a clear reason for the agricultural sector to shift its cultivation method from conventional to eco-friendly farming, including low-carbon farming.

scholarly journals Analysis of Short-Term Steel Corrosion Products Formed in Tropical Marine Environments of Panama

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Juan A. Jaén ◽  
Josefina Iglesias ◽  
Cecilio Hernández
Keyword(s):  
Corrosion Behaviour ◽  
Low Carbon Steel ◽  
Steel Corrosion ◽  
Corrosion Products ◽  
Urban Site ◽  
Low Carbon ◽  
Short Term ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Time Of Wetness

A low-carbon steel A-36 and two conventional weathering steels A-588 and COR-420 exposed at four atmospheric test stations located in (i) Tocumen, an urban site near the Pacific Ocean, (ii) Sherman-Open, (iii) Sherman-Coastal, and (iv) Sherman-Breakwater on the Caribbean coast of Panama. Kinetics of the short-term atmospheric corrosion process and the relationship with exposure time and environmental characteristics of each site were investigated. The atmospheric exposure conditions, particularly the time of wetness, deposition of chloride, and the washing effect of contaminants on the metal surface by rain are of upmost importance in determining the corrosion behaviour and composition of rust. The corrosion products were mainly identified using room temperature and low temperature (80 K) Mössbauer spectroscopy, FTIR, and X-ray powder diffraction. In all samples,γ-FeOOH andα-FeOOH were the main constituents. Maghemite (γ-Fe2O3), magnetite (Fe3O4), and Akaganeite (β-FeOOH) were also identified.

scholarly journals Carbon Capture, Utilization and Storage Game Changers: A Compendium of Technologies and Enablers

2021 ◽  
Author(s):  
Keyword(s):  
Carbon Dioxide ◽  
Carbon Capture ◽  
Emerging Technologies ◽  
Low Carbon ◽  
The Pacific ◽  
Low Carbon Development ◽  
Key Aspects ◽  
Low Carbon Technologies ◽  
And Storage

This compendium showcases new and innovative low carbon technologies that have potential to be deployed in Asia and the Pacific. It features 10 technologies for capturing, utilizing, or storing carbon dioxide. The key aspects of these technologies are discussed together with their advantages and status of development and commercialization. The compendium aims to contribute to low carbon development in the region by promoting further research, innovation, and investment in emerging technologies.

scholarly journals Gazing over the horizon: Will an equitable Green Climate Fund allocation policy be significant for the Pacific post-2020?

2019 ◽  
Vol 25 (1&2) ◽  
pp. 158-172
Author(s):  
Jale Samuwai ◽  
Jeremy Maxwell Hills
Keyword(s):  
Climate Change ◽  
Small Island ◽  
Special Focus ◽  
Climate Finance ◽  
Low Carbon ◽  
Allocation Policy ◽  
Fund Allocation ◽  
Green Climate Fund ◽  
The Pacific ◽  
Change Response

The establishment of the Green Climate Fund (GCF) has increased expectations and optimism amongst developing countries, especially those that are particularly vulnerable to climate change. The GCF aims to channel a significant portion of global funds for climate change response, with a goal of reaching US$100 billion per year by 2020. Portrayed as a timely saviour to the climate finance needs of vulnerable countries, the allocation of GCF funds among countries will be key to low carbon and resilient futures. Its broad allocation policy increases the possibility that particularly vulnerable countries which have struggled to access international climate finance will continue to face such challenges. Adopting an equitable/fair principle of allocation, this article highlights a number of scenarios on the possible impact of the post-2020 climate financing environment on particularly vulnerable countries with a special focus on the Pacific Small Island Developing States (PSIDS). This study argues that PSIDS are extremely sensitive to GCF allocation mechanisms. While the study supports the notion of balanced allocation as currently advanced by the GCF, the precarious situation of PSIDS necessitates a re-think of how the GCF finance is to be allocated in the future.

The Philological Association of The Pacific Coast

PMLA ◽  
1935 ◽  
Vol 50 (4) ◽  
pp. 1373-1374
Keyword(s):  
Annual Meeting ◽  
Pacific Coast ◽  
Stanford University ◽  
The Pacific

The thirty-seventh annual meeting of the Philological Association of the Pacific Coast was held at Stanford University, California, on November 29 and 30, 1935.

S.E.M.-T.E.M. Image Comparison

1971 ◽  
Vol 29 ◽  
pp. 132-133
Author(s):  
G. M. Greene ◽  
J. W. Sprys
Keyword(s):  
Electron Microscope ◽  
Low Carbon Steel ◽  
Secondary Emission ◽  
Low Carbon ◽  
Preparation Time ◽  
Actual Surface ◽  
Fine Detail ◽  
Transmission Electron ◽  
Transmission Study ◽  
Large Sections

The present study demonstrates that fracture surfaces appear strikingly different when observed in the transmission electron microscope by replication and in the scanning electron microscope by backscattering and secondary emission. It is important to know what form these differences take because of the limitations of each instrument. Replication is useful for study of surfaces too large for insertion into the S.E.M. and for resolution of fine detail at high magnification with the T.E.M. Scanning microscopy reduces sample preparation time and allows large sections of the actual surface to be viewed.In the present investigation various modes of the S.E.M. along with the transmission mode in the T.E.M. were used to study one area of a fatigue surface of a low carbon steel. Following transmission study of a platinum carbon replica in the T.E.M. and S.E.M. the replica was coated with a gold layer approximately 200A° in thickness to improve electron emission.

Lattice Imaging of Twin, Lath and α/Martensite Boundaries in Duplex Low Carbon Steels

1977 ◽  
Vol 35 ◽  
pp. 118-119
Author(s):  
J. Y. Koo ◽  
G. Thomas
Keyword(s):  
High Resolution Electron Microscopy ◽  
Ferrite Matrix ◽  
Carbon Steels ◽  
Bright Field Image ◽  
Low Carbon ◽  
Lattice Imaging ◽  
Bright Field ◽  
Lattice Image ◽  
New Information ◽  
Resolution Electron

High resolution electron microscopy has been shown to give new information on defects(1) and phase transformations in solids (2,3). In a continuing program of lattice fringe imaging of alloys, we have applied this technique to the martensitic transformation in steels in order to characterize the atomic environments near twin, lath and αmartensite boundaries. This paper describes current progress in this program.Figures A and B show lattice image and conventional bright field image of the same area of a duplex Fe/2Si/0.1C steel described elsewhere(4). The microstructure consists of internally twinned martensite (M) embedded in a ferrite matrix (F). Use of the 2-beam tilted illumination technique incorporating a twin reflection produced {110} fringes across the microtwins.

A scanning electron microscopic study of the veliger larvae of the scallop argopecten purpuratus

1988 ◽  
Vol 46 ◽  
pp. 284-285
Author(s):  
G.C. Bellolio ◽  
K.S. Lohrmann ◽  
E.M. Dupré
Keyword(s):  
Morphological Description ◽  
Electron Microscopic ◽  
Larval Stages ◽  
Scanning Electron Microscopic Study ◽  
The Pacific ◽  
Argopecten Purpuratus ◽  
Veliger Larvae ◽  
20 Nm ◽  
Ethanol Series ◽  
Scanning Electron

Argopecten purpuratus is a scallop distributed in the Pacific coast of Chile and Peru. Although this species is mass cultured in both countries there is no morphological description available of the development of this bivalve except for few characterizations of some larval stages described for culture purposes. In this work veliger larvae (app. 140 pm length) were examined by the scanning electron microscope (SEM) in order to study some aspects of the organogenesis of this species.Veliger larvae were obtained from hatchery cultures, relaxed with a solution of MgCl2 and killed by slow addition of 21 glutaraldehyde (GA) in seawater (SW). They were fixed in 2% GA in calcium free artificial SW (pH 8.3), rinsed 3 times in calcium free SW, and dehydrated in a graded ethanol series. The larvae were critical point dried and mounted on double scotch tape (DST). To permit internal view, some valves were removed by slightly pressing and lifting the tip of a cactus spine wrapped with DST, The samples were coated with 20 nm gold and examined with a JEOL JSM T-300 operated at 15 KV.

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