Results 101 to 110 of about 2,436,566 (338)

The drill down [PDF]

open access: yes, 2014
textThe town of Millerton, Pa., has always been a small, rural farming community. Settled atop of the famed Marcellus Shale in the foothills of the Appalachians, there have always been rumors of natural gas in the hills around town. In 2008, natural gas
Friel, Katherine Dailey
core  

Making Photoresponsive Metal–Organic Frameworks an Effective Class of Heterogeneous Photocatalyst

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes photoresponsive MOFs for photocatalytic applications, focusing on their capacity to enhance light harvesting, charge transfer, and surface reactions. While existing studies provide foundational insights, emerging characterization techniques enable a deeper understanding of photoresponsive MOFs.
Rui Liu   +3 more
wiley   +1 more source

Fossil Fuels: Natural Gas [PDF]

open access: yes
This lesson provides an introduction to the use of natural gas as an energy source. Topics include its advantages (cleanliness, fewer carbon emissions), disadvantages (difficulty in transport and storage), sources, and usage.
John Pratte
core  

Energy security for Bangladesh : prospects and strategic implications of natural gas [PDF]

open access: yes, 2004
Includes bibliographical references (p. 25-26). "May 2004."An overview of the energy scenario in Bangladesh, with a focus on natural gas. Includes discussion of the exploration, production, and consumption of natural gas, along with strategic options for
Samrina, Nawrin
core  

Bioorthogonal Engineering of Cellular Microenvironments Using Isonitrile Ligations

open access: yesAdvanced Functional Materials, EarlyView.
Highly selective chemistries are required for fabrication and post‐cross–linking modification of cell‐encapsulating hydrogels used in tissue engineering applications. Isonitrile ligation reactions represent a promising class of bioorthogonal chemistries for engineering hydrogel‐based cellular microenvironments. Isonitrile‐based hydrogels are stable and
Ping Zhou   +2 more
wiley   +1 more source

Experimental study of surfactant flooding system in low permeability reservoir

open access: yesScientific Reports
In view of reservoirs with low pressure, medium porosity, and low permeability in Changqing Oilfield, along with the “double high stage” in the middle and late development featuring a sharp rise in water cut and a low comprehensive water flooding ...
Bai Jinmei   +3 more
doaj   +1 more source

An Innovative High-Strength Double-Network Hydrogel for Use as a Drilling Fluid Plugging Agent

open access: yesGels
The problem of wellbore leakage is a key challenge in the petroleum industry, limiting drilling progress and increasing drilling costs. Plugging agents play a role in repairing leaks and fractures; however, traditional plugging materials generally have ...
Yanfeng He   +7 more
doaj   +1 more source

Multi‐Scaled Cellulosic Nanonetworks from Tunicates

open access: yesAdvanced Functional Materials, EarlyView.
Microbial and plant nanonetworks of cellulose have enabled a wide range of high‐performance yet sustainable materials. Herein, a third class of cellulosic nanonetworks is showcased by exploiting the only animal tissue‐producing cellulose nanofibers, i.e., ascidians. An ultrastructure including spherical cells and a microvasculature with diameters of 50–
Mano Govindharaj   +10 more
wiley   +1 more source

Impact of the Microstructure of Polymer Drag Reducer on Slick-Water Fracturing

open access: yesGeofluids, 2017
Many studies have focused on the drag reduction performance of slick-water, but the microdrag reduction mechanism remains unclear since the microstructure of the drag reducer and its effect on this mechanism have not been well studied. In this study, the
Zhi-yu Liu   +5 more
doaj   +1 more source

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