Transform Boundary: Definition And Examples

2018 ◽  
Author(s):  
Daniel Nelson
Keyword(s):  
Boundary Definition ◽  
Transform Boundary

scholarly journals A Comprehensive Framework for Standardising System Boundary Definition in Life Cycle Energy Assessments

Buildings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 230
Author(s):  
Hossein Omrany ◽  
Veronica Soebarto ◽  
Jian Zuo ◽  
Ruidong Chang
Keyword(s):  
Life Cycle ◽  
Energy Use ◽  
Embodied Energy ◽  
Building Energy Efficiency ◽  
System Boundary ◽  
Policy Makers ◽  
Energy Assessment ◽  
Boundary Definition ◽  
Comprehensive Framework

This paper aims to propose a comprehensive framework for a clear description of system boundary conditions in life cycle energy assessment (LCEA) analysis in order to promote the incorporation of embodied energy impacts into building energy-efficiency regulations (BEERs). The proposed framework was developed based on an extensive review of 66 studies representing 243 case studies in over 15 countries. The framework consists of six distinctive dimensions, i.e., temporal, physical, methodological, hypothetical, spatial, and functional. These dimensions encapsulate 15 components collectively. The proposed framework possesses two key characteristics; first, its application facilitates defining the conditions of a system boundary within a transparent context. This consequently leads to increasing reliability of obtained LCEA results for decision-making purposes since any particular conditions (e.g., truncation or assumption) considered in establishing the boundaries of a system under study can be revealed. Second, the use of a framework can also provide a meaningful basis for cross comparing cases within a global context. This characteristic can further result in identifying best practices for the design of buildings with low life cycle energy use performance. Furthermore, this paper applies the proposed framework to analyse the LCEA performance of a case study in Adelaide, Australia. Thereafter, the framework is utilised to cross compare the achieved LCEA results with a case study retrieved from literature in order to demonstrate the framework’s capacity for cross comparison. The results indicate the capability of the framework for maintaining transparency in establishing a system boundary in an LCEA analysis, as well as a standardised basis for cross comparing cases. This study also offers recommendations for policy makers in the building sector to incorporate embodied energy into BEERs.

Study on Carbon Emission Calculation Method of Concrete

2018 ◽  
Vol 768 ◽  
pp. 293-305 ◽  
Author(s):  
Chun Zhi Zhao ◽  
Yi Liu ◽  
Shi Wei Ren ◽  
Jiang Quan
Keyword(s):  
Energy Consumption ◽  
Calculation Method ◽  
Carbon Emission ◽  
Rapid Development ◽  
Reference Value ◽  
Calculation Model ◽  
Emission Data ◽  
Continuous Growth ◽  
Boundary Definition ◽  
Concrete Production

along with the rapid development of commercial concrete industry and the continuous growth of concrete demand, the commercial concrete production has brought large energy consumption and mineral resource consumption; cement calcination and direct/indirect energy consumption within the boundary of ready-mixed concrete system have become the main source of concrete greenhouse gas. This paper mainly settles key problems such as boundary definition, data collection, calculation model, data acceptance/rejection and data calculation method concerned with concrete carbon emission calculation, establishes the national uniform concrete carbon emission calculation method and emission factor within the same cultural boundary, and provides theoretical and data calculation basis for determining the reference value and grade of concrete carbon emission. As for other products, the carbon emission of unit product may also be calculated by reference to this paper; therefore, inherent carbon emission data of buildings are accumulated, providing quantized data support for taking measures to reduce the carbon emission intensity.

scholarly journals Monument Boundary Definition and Exploration Pits at the Krasnyy Vostok Site in the River Kuma Basin

2020 ◽  
Author(s):  
А.В. Субботин
Keyword(s):  
Western Slope ◽  
Left Bank ◽  
North Caucasus ◽  
Mountainous Regions ◽  
The North ◽  
Boundary Definition ◽  
Northern Side ◽  
Western Side ◽  
Object Of Study ◽  
Stone Walls

В статье излагаются результаты инструментальной съемки и шурфовки на раннесредневековом городище, выявленном в начале 1970-х гг. Х. Х. Биджиевым. Городище и связанное с ним селище занимают высокое мысовое плато над каньоном левого берега р. Кумы в Карачаево-Черкесии. Площадь укрепленного городища – 4 га, селища – немногим меньше. С трех сторон городище абсолютно неприступно, с четвертой, западной, надежно защищено высоким валом и глубоким рвом. На городище и селище зафиксирован ряд западин, которые, скорее всего, являются заросшими остатками построек. Содержимое шести шурфов – каменные развалы фундаментов (?) строений и фрагменты сосудов. Керамика может быть датирована VII–X вв. н. э. Памятник являлся одним из звеньев в цепи достаточно известных (несколько десятков) укрепленных крепостей данного времени в предгорьях и горах Северного Кавказа. Строительство сети сложных оборонительных сооружений свидетельствует о высокой строительной культуре и социальной дифференциации общества в это время. The article presents the results of instrumental surveys and pitting at an early medieval site, identified in the early 1970s by Kh.Kh. Bidzhiev. The investigated site and the settlement associated with it occupy a high cape plateau above the canyon of the left bank of the river Kuma in the Karachay-Cherkess Republic. The object of study is located in 2.4 km south-west of the southern outskirts of the village Krasnovostochny. The area of the fortified site is 4 hectares, the area of the settlement is slightly less. On three sides, this site is absolutely impregnable. On the forth western side,on its western slope, it is reliably protected by a rampart of up to 6 to 7 m high and a moat of1 to 2 m deep. On the outside of the southern part of the rampart, a small outcrop of masonry constructed of the large blocks of limestone formed in the dry stone wall was discovered. The gates to the site were most likely located on the northern side of the rampart, in the place where a slight decrease was discovered, not at the southern end of the rampart (according to Bidzhiev) because no sign of an entrance was found there. The site revealed several shallow depressions of a sub-square, sub-rectangular or oval shape with a noticeable roller along the contour. There are at least 7 such depressions in the sectional area from 8 to 15 m. Probably, these depressions are the overgrown remains of the foundations of some buildings in the central part of the site. The content of 6 pits made on the territory of the site and the settlement are stone remains of the foundations (?) of ancient buildings and fragments of vessels. The collection of ceramics consists of medium-sized fragments of the walls of pottery (?) vessels, or vessels that are corrected on a wheel. The ceramics are diverse in the color of clay, density of the paste, firing, and impurities. According to the character, paste and collar shapes, ceramics can be dated to the last third of the 1st millennium AD, which does not contradict the opinion of the site’s discoverer on this issue (7th to 10th cent. AD). The examined site was one of the links in the main chain of fairly widely known (several dozen) fortified stone fortresses of this time in the foothills and mountains of the North Caucasus. Specialists know more than 130 similar stone sites, sometimes located in groups in the foothills and mountainous regions: settlements with defensive stone walls. Such small fortresses were built every 2 to 3 km along the tip of the cape above the river. The construction of a network of complex defensive structures indicates a high building culture and a social differentiation of society at the time.

COMBINATION OF MESH DEFORMATION AND OVERSET GRID FOR SIMULATING UNSTEADY FLOW OF INSECT FLIGHT

2009 ◽  
Vol 23 (03) ◽  
pp. 525-528 ◽  
Author(s):  
TIANHANG XIAO ◽  
HAISONG ANG
Keyword(s):  
Insect Flight ◽  
Unsteady Flows ◽  
Flapping Wings ◽  
Mesh Deformation ◽  
Time Step ◽  
Overset Grids ◽  
Boundary Definition ◽  
Graph Mapping ◽  
Background Grid ◽  
Grid Cluster

As numerical simulation of unsteady flows due to moving boundaries such as flexible flapping-wings is difficult by conventional approaches, an effective strategy which combines mesh deformation based on Delaunay graph mapping and unstructured overset grids is proposed in this paper. A Delaunay graph is generated for each body-fitted grid cluster which overlaps or is embedded within an off-body background grid cluster. At each time step, the graph moves according to the wing's motion and deformation, and the grids move to new positions according to a one-to-one mapping between the graph and the grid. Then, intergrid-boundary definition is implemented automatically for computation.

scholarly journals A topo-graph model for indistinct target boundary definition from anatomical images

2018 ◽  
Vol 159 ◽  
pp. 211-222 ◽  
Author(s):  
Hui Cui ◽  
Xiuying Wang ◽  
Jianlong Zhou ◽  
Guanzhong Gong ◽  
Stefan Eberl ◽  
...  
Keyword(s):  
Graph Model ◽  
Boundary Definition ◽  
Anatomical Images

Testing the congruence of the microfossil versus microfossil record in the Turonian–Coniacian boundary succession of the Wagon Mound–Springer composite section (NE New Mexico, USA)

2012 ◽  
Vol 62 (4) ◽  
pp. 581-594 ◽  
Author(s):  
Ireneusz Walaszczyk ◽  
Jackie A. Lees ◽  
Danuta Peryt ◽  
William A. Cobban ◽  
Christopher J. Wood
Keyword(s):  
New Mexico ◽  
Central Europe ◽  
High Potential ◽  
Bivalve Species ◽  
Boundary Definition ◽  
The Us ◽  
Composite Section

ABSTRACT Walaszczyk, I., Lees, J.A., Peryt, D., Cobban, W.A. and Wood, C.J. 2012. Testing the congruence of the microfossil versus microfossil record in the Turonian-Coniacian boundary succession of the Wagon Mound-Springer composite section (NE New Mexico, USA). Acta Geologica Polonica, 62 (4), 581-594. Warszawa. The Turonian-Coniacian boundary succession from the Wagon Mound-Springer composite section in the US Western Interior shows a virtually identical macrofaunal record to that revealed in the proposed candidate Coniacian GSSP in the Salzgitter-Salder-Słupia Nadbrzeżna composite section in central Europe, with easy identification in both regions of the base of the Coniacian Stage, as defined by the first appearance of the inoceramid bivalve species, Cremnoceramus deformis erectus (Meek). The macrofaunal boundary definition is additionally confirmed by the foraminiferal and nannofossil data, demonstrating the high potential of the inoceramid marker for the base of the Coniacian. The former claims about distinct diachroneity between macrofossil and microfossil dates in the trans-Atlantic correlations, resulted from methodological deficiencies, and have no factual basis.

scholarly journals Application of Life Cycle Energy Assessment in Residential Buildings: A Critical Review of Recent Trends

2020 ◽  
Vol 12 (1) ◽  
pp. 351 ◽  
Author(s):  
Hossein Omrany ◽  
Veronica Soebarto ◽  
Ehsan Sharifi ◽  
Ali Soltani
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Energy Use ◽  
Residential Buildings ◽  
Current Trend ◽  
Energy Performance ◽  
Embodied Energy ◽  
System Boundary ◽  
Energy Assessment ◽  
Boundary Definition

Residential buildings are responsible for a considerable portion of energy consumption and greenhouse gas emissions worldwide. Correspondingly, many attempts have been made across the world to minimize energy consumption in this sector via regulations and building codes. The focus of these regulations has mainly been on reducing operational energy use, whereas the impacts of buildings’ embodied energy are frequently excluded. In recent years, there has been a growing interest in analyzing the energy performance of buildings via a life cycle energy assessment (LCEA) approach. The increasing amount of research has however caused the issue of a variation in results presented by LCEA studies, in which apparently similar case studies exhibited different results. This paper aims to identify the main sources of variation in LCEA studies by critically analyzing 26 studies representing 86 cases in 12 countries. The findings indicate that the current trend of LCEA application in residential buildings suffers from significant inaccuracy accruing from incomplete definitions of the system boundary, in tandem with the lack of consensus on measurements of operational and embodied energies. The findings call for a comprehensive framework through which system boundary definition for calculations of embodied and operational energies can be standardized.

Present-day deformation along the El Pilar Fault in eastern Venezuela: Evidence of creep along a major transform boundary

2011 ◽  
Vol 51 (5) ◽  
pp. 398-410 ◽  
Author(s):  
François Jouanne ◽  
Franck A. Audemard ◽  
Christian Beck ◽  
Aurélien Van Welden ◽  
Reinaldo Ollarves ◽  
...  
Keyword(s):  
Transform Boundary ◽  
El Pilar Fault
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