Results 91 to 100 of about 430,784 (291)

Crude awakening: behind the surge in oil prices [PDF]

The first few months of 2008 saw crude oil prices breach one barrier after another. They topped $100 a barrel for the first time on Feb. 19, then rose past $103.76 about two weeks later, surpassing the previous inflation-adjusted peak, established in ...
Raghav Virmani, Richard Alm, Stephen P. A. Brown   +2 more
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Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

Advanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat, Mojtaba Karamimoghadam, Mohammadreza Lalegani Dezaki, Ali Zolfagharian, Giuseppe Casalino, Antonio Mateo, Mahdi Bodaghi   +6 more
wiley   +1 more source

Geological conditions for continental tight oil formation and the main controlling factors for the enrichment: A case of Chang 7 Member, Triassic Yanchang Formation, Ordos Basin, NW China

Petroleum Exploration and Development, 2017
The Chang7 Member of the Triassic Yanchang Formation in the Ordos Basin is a typical continental tight oil province. The geological conditions and the main controlling factors for the formation of tight oil province in Chang 7 Member were studied based ...
Hua YANG, Xiaowei LIANG, Xiaobing NIU, Shengbin FENG, Yuan YOU   +4 more
doaj   +1 more source

The Post-2015 Global Agenda: A Framework for Country Diagnostics [PDF]

, 2014
With the 2015 deadline for the current Millennium Development Goals (MDGs) drawing near, the global community is shaping a new set of international development goals for the longer term.
Hans Lofgren, Israel Osorio-Rodarte, Susanna Gable   +2 more
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Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Parameter optimization study of three-dimensional well network-fracture network coupled fracturing in jimsar shale oil

Unconventional Resources
The exploration of sweet spots in the Jimsar shale oil reservoir in Xinjiang involves creating a complex fracture network through three-dimensional well networks and advanced fracturing technology, crucial for successful shale oil reservoir development ...
Shuiqing Hu, Yue Wu, Yiqun Yan, Tingwang Huo, Ziyi Xu, Yingyan Li, Jixiang He, Wei Zhang, Daobing Wang   +8 more
doaj   +1 more source

Scenarios for the Dutch gas distribution infrastructure in 2050 [PDF]

, 2012
In the Netherlands 98 percent of the households are connected to the gas grid. Th is grid, aging, will need investments. What are its system requirements in the future? No consensus exists on that question.
Bekkering, E., Eekelen, R. van, Weidenaar, T.D.   +2 more
core   +1 more source

Unidirectional Tape‐Based Composites from Hemp and Pineapple Leaf Fiber: Mechanical Performance in Conventional and Bio‐Based Matrices

Advanced Engineering Materials, EarlyView.
The study investigates novel semi‐finished products made of unidirectionally arranged hemp or pineapple leaf fiber‐reinforced composites produced from different matrices. The materials are analyzed in terms of their mechanical and interfacial properties and void content.
Nina Graupner, Raja Bade, Valentin Ackermann, Roja M. Baumann, Corvin Bischoff, Jona F. Ebeling, Oskar Glenz, Marlo Groh, Jonathan Groth, Finja Hiller, Tom Hirschmüller, Felix Menke, Syntcha Ngantchou Lecdou, Mika Ohler, Daniel Rafii Vardiny, Darius Richter, Dario Röper, Henrik Schumacher, Theresa Stein, Benjamin Vorbeck, Elisabeth Wermter, Kay Kölzig, Jörg Müssig   +22 more
wiley   +1 more source

Modeling transition in Central Asia: the Case of Kazakhstan [PDF]

This paper presents a small macro-econometric model of Kazakhstan to study the impact of various economic policies. It uses a new approach to test the existence of a level relationship between a dependent variable and a set of regressors, when the ...
Adelya OSPANOVA, Alain SAND-ZANTMAN, Gilles DUFRENOT   +2 more
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Modeling of Induced Hydraulically Fractured Wells in Shale Reservoirs Using Branched Fractals [PDF]

, 2013
Imperial Users ...
Al-Obaidy, Rawan, Al-Obaidy, Rawan
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