Optimal Staging Area Locations and Material Recycling Strategies for Sustainable Highway Reconstruction

2014 ◽  
Vol 29 (8) ◽  
pp. 559-571 ◽  
Author(s):  
Ryan Smith ◽  
Eric Ferrebee ◽  
Yanfeng Ouyang ◽  
Jeffery Roesler
Keyword(s):  
Material Recycling ◽  
Staging Area

Evidence of Brent Geese Branta bernicla Moving between an Autumn Staging Area in East Hokkaido and Wintering Sites in West Hokkaido and Northern Honshu

2020 ◽  
Vol 19 (2) ◽  
pp. 211
Author(s):  
Yusuke Sawa ◽  
Chieko Tamura ◽  
Toshio Ikeuchi ◽  
Tetsuo Shimada ◽  
Kaoru Fujii ◽  
...  
Keyword(s):  
Branta Bernicla ◽  
Staging Area

scholarly journals Recycling Potential for Non-Valorized Plastic Fractions from Electrical and Electronic Waste

Recycling ◽  
2021 ◽  
Vol 6 (2) ◽  
pp. 33
Author(s):  
Laura Strobl ◽  
Thomas Diefenhardt ◽  
Martin Schlummer ◽  
Tanja Leege ◽  
Swetlana Wagner
Keyword(s):  
Flame Retardants ◽  
Electronic Waste ◽  
Gel Permeation Chromatography ◽  
Scanning Calorimetry ◽  
Separation Processes ◽  
Melt Flow Rate ◽  
Density Fractions ◽  
Material Recycling ◽  
Other Substances ◽  
Electrical And Electronic Waste

This paper describes a study for waste of electrical and electronic equipment (WEEE) to characterise the plastic composition of different mixed plastic fractions. Most of the samples studied are currently excluded from material recycling and arise as side streams in state-of-the-art plastics recycling plants. These samples contain brominated flame retardants (BFR) or other substances of concern listed as persistent organic pollutants or in the RoHS directive. Seventeen samples, including cathode ray tube (CRT) monitors, CRT televisions, flat screens such as liquid crystal displays, small domestic appliances, and information and communication technology, were investigated using density- and dissolution-based separation processes. The total bromine and chlorine contents of the samples were determined by X-ray fluorescence spectroscopy, indicating a substantial concentration of both elements in density fractions above 1.1 g/cm3, most significantly in specific solubility classes referring to ABS and PS. This was further supported by specific flame retardant analysis. It was shown that BFR levels of both polymers can be reduced to levels below 1000 ppm by dissolution and precipitation processes enabling material recycling in compliance with current legislation. As additional target polymers PC and PC-ABS were also recycled by dissolution but did not require an elimination of BFR. Finally, physicochemical investigations of recycled materials as gel permeation chromatography, melt flow rate, and differential scanning calorimetry suggest a high purity and indicate no degradation of the technical properties of the recycled polymers.

Environmental assessment of construction and demolition waste recycling in Bolivia: Focus on transportation distances and selective collection rates

2021 ◽  
pp. 0734242X2110291
Author(s):  
Navarro Ferronato ◽  
Gabriela Edith Guisbert Lizarazu ◽  
Marcelo Antonio Gorritty Portillo ◽  
Luca Moresco ◽  
Fabio Conti ◽  
...  
Keyword(s):  
Developing Countries ◽  
Environmental Impacts ◽  
Waste Recycling ◽  
Construction And Demolition Waste ◽  
Primary Data ◽  
Demolition Waste ◽  
Collection Rate ◽  
Material Recycling ◽  
Material Recovery ◽  
Selective Collection

Construction and demolition waste (CDW) management in developing countries is a global concern. The analysis of scenarios and the implementation of life cycle assessment (LCA) support decision-makers in introducing integrated CDW management systems. This paper introduces the application of an LCA in La Paz (Bolivia), where CDW is mainly dumped in open areas. The aim of the research is to evaluate the benefits of inert CDW recycling in function of the selective collection rate, defined as the amount of waste (%wt.) sorted at the source in relation to the total waste amount produced, and the distances from the CDW generation to the material recycling facility. The outcomes of the research suggest that increasing the selective collection rates (5% to 99%) spread the importance of transportation distances planning since it affects the magnitude of the environmental impacts (1.05 tCO2-eq to 20.7 tCO2-eq per km traveled). Transportation limits have been found to be lower than about 40 km in order to make recycling beneficial for all environmental impacts and for all selective collection rate, with the eutrophication potential as the limiting indicator. The theoretical analysis suggests implementing LCA with primary data and involving statistics related to the transportation of virgin materials avoided thanks to recycling. The outcomes of the research support the implementation of CDW recycling in developing countries since it has been found that material recovery is always beneficial.

Utilisation possibilities of waste medium-density fiberboard: A material recycling process

2021 ◽  
Author(s):  
S. Thirugnanam ◽  
R. Srinivasan ◽  
Kshitij Anand ◽  
Abhishek Bhardwaj ◽  
G. Puthilibai ◽  
...  
Keyword(s):  
Medium Density Fiberboard ◽  
Medium Density ◽  
Recycling Process ◽  
Material Recycling

Optimizing ETL by a Two-Level Data Staging Method

2016 ◽  
Vol 12 (3) ◽  
pp. 32-50
Author(s):  
Xiufeng Liu ◽  
Nadeem Iftikhar ◽  
Huan Huo ◽  
Per Sieverts Nielsen
Keyword(s):  
Data Warehouse ◽  
Data Warehousing ◽  
Data Extraction ◽  
Data Staging ◽  
Staging Area ◽  
Level Data ◽  
Different Types ◽  
Operational Systems ◽  
Early Late ◽  
Central Data

In data warehousing, the data from source systems are populated into a central data warehouse (DW) through extraction, transformation and loading (ETL). The standard ETL approach usually uses sequential jobs to process the data with dependencies, such as dimension and fact data. It is a non-trivial task to process the so-called early-/late-arriving data, which arrive out of order. This paper proposes a two-level data staging area method to optimize ETL. The proposed method is an all-in-one solution that supports processing different types of data from operational systems, including early-/late-arriving data, and fast-/slowly-changing data. The introduced additional staging area decouples loading process from data extraction and transformation, which improves ETL flexibility and minimizes intervention to the data warehouse. This paper evaluates the proposed method empirically, which shows that it is more efficient and less intrusive than the standard ETL method.

scholarly journals U–Pb Dating and Hf Isotopes Analysis of Detrital Zircons of the Shanxi Formation in the Otuokeqi Area, Northwestern Ordos Basin

Geofluids ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Jiaxuan Song ◽  
Hujun Gong ◽  
Jingli Yao ◽  
Huitao Zhao ◽  
Xiaohui Zhao ◽  
...  
Keyword(s):  
Detrital Zircon ◽  
North China ◽  
Ordos Basin ◽  
Detrital Zircons ◽  
Oscillatory Zoning ◽  
Edge Structure ◽  
Material Recycling ◽  
The North ◽  
Upper Paleozoic ◽  
The Ordos Basin

The Paleozoic strata are widely distributed in the northwest of the Ordos Basin, and the provenance attributes of the basin sediments during this period are still controversial. In this paper, the detrital zircon LA-MC-ICPMS U-Pb age test was conducted on the drilling core samples of the Shanxi Formation of the Upper Paleozoic in the Otuokeqi area of the Ordos Basin, and the provenance age and the characteristic of the Shanxi formation in the Otuokeqi area in the northwest were discussed. The cathodoluminescence image shows that the detrital zircon has a clear core-edge structure, and most of the cores have clear oscillatory zonings, which suggests that they are magmatic in origin. Zircons have no oscillatory zoning structure that shows the cause of metamorphism. The age of detrital zircon is dominated by Paleoproterozoic and can be divided into four groups, which are 2500~2300 Ma, 2100~1600 Ma, 470~400 Ma, and 360~260 Ma. The first two groups are the specific manifestations of the Precambrian Fuping Movement (2.5 billion years) and the Luliang Movement (1.8 billion years) of the North China Craton. The third and fourth groups of detrital zircons mainly come from Paleozoic magmatic rocks formed by the subduction and collision of the Siberian plate and the North China plate. The ε Hf t value of zircon ranges from -18.36 to 4.33, and the age of the second-order Hf model T DM 2 ranges from 2491 to 1175 Ma. The source rock reflecting the provenance of the sediments comes from the material recycling of the Paleoproterozoic and Mesoproterozoic in the crust, combined with the Meso-Neoproterozoic detrital zircons discovered this time, indicating that the provenance area has experienced Greenwellian orogeny.

scholarly journals JEPAPLOK: KOREOGRAFI PENGGAMBARAN HEWAN MITOLOGI JAWA

JOGED ◽  
2020 ◽  
Vol 16 (2) ◽  
pp. 188-201
Author(s):  
Chorine Nur Shofa
Keyword(s):  
Point Of View ◽  
The Body ◽  
Final Part ◽  
Staging Area ◽  
Basic Motion

Jepaplok merupakan judul dari sebuah karya tari kelompok yang di dalamnya melibatkan sembilan penari perempuan. Kata Jepaplok yaitu berasal dari Njeplak (Manggap) dan Nyaplok (mencaplok). Karya tari ini berawal dari pertunjukan Jaranan di Tulungagung Jawa Timur. Barongan atau biasa disebut Caplokan/Jepaplok adalah penggambaran hewan mitologi berupa ular naga sebagai penguasa hutan yang jahat. Sosok yang dilihat dari segi visualnya menyeramkan dan ganas, serta dari sudut geraknya yang sangat ekspresif. Gerak-gerak dasar yang digunakan antara lain seperti leang-leong, ngaplak, ngepruk, sondongan, pattetan, dan sundangan. Karya tari Jepaplok terdiri dari 4 bagian adegan. Pada bagian introduksi dipertunjukkan sosok Barongan dan Jaranan yang berbeda ruang dan kemudian saling menyerang. Bagian 1 berfokus pada gerak Barongan tanpa menggunakan properti topeng. Pada bagian 2 persiapan penyerangan terhadap penari Jaranan, sehingga dalam bagian ini sudah menggunakan properti topeng. Bagian 3 lebih kepada esensi penggunakan topeng dan diolah dengan permainan ritme dan menggunakan komposisi berpasangan. Bagian 4 yaitu akhir dari pertunjukan karya tari Jepaplok yaitu perangan Barongan dan Jaranan. Tetapi pada bagian akhir ini tidak semata-mata saling berhadapan satu dengan yang lain melainkan hanya sebatas permainan per kelompok. ABSTRACT Jepaplok is the title of a workgroup in which dance involving nine female dancers. The word Jepaplok is derived from Njeplak (Mangap) and Nyaplok (annexed). This dance originated in the works of interest in dance salon when watching a show used Jaranan (dance horse) in Tulungagung, East Java. The point of view of the Director of the dance stopped when one of the characters enter the staging area performance Barongan. Suspenseful atmosphere emerges when section toward the battle between used Horse and Barongan. Barongan or commonly called Caplokan/Jepaplok is the depiction of mythological animals in the form of a dragon serpent as ruler of the evil forest. The figure is seen in terms of the Visual sinister and vicious, as well as from the point of highly expressive movements that inspired the stylist for him to dance in a group dance with paper based on motion and feel the music used Jaranan Sentherewe Tulungagung, East Java. The focus of the implementation work of the dance called Jepaplok is more to perangan and Barongan figures. Basic motion-motion that is used among other things such as leang-leong, ngaplak, ngepruk, sondongan, pattetan, and sundangan. In the work of this Jepaplok dance doesn't bring up the story and consists of four parts of the scene. On the introduction of a dance figure demonstrating Barongan and different spaces used Horse and then each other. Part one is more focused on motion the Barongan poured into members of the body of a dancer without using the mask property. In part two, namely more to preparation which showed Barongan attacks against dancers used Horse, so in this section are already using property mask. Part three more to the essence of the use of mask and mingled with the game rhythm and composition using paired. Part four, namely the ending of the show dance work Jepaplok, as in general the final part of the art used Horse namely perangan and Barongan used Horse. But in the end, it does not solely face each other with one another but rather only as a game between groups.

scholarly journals A multidimensional indicator set to assess the benefits of WEEE material recycling

2014 ◽  
Vol 83 ◽  
pp. 305-316 ◽  
Author(s):  
Dirk Nelen ◽  
Saskia Manshoven ◽  
Jef R. Peeters ◽  
Paul Vanegas ◽  
Nele D'Haese ◽  
...  
Keyword(s):  
Material Recycling
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