Results 81 to 90 of about 67,012 (290)

Oil and energy price volatility

Energy Economics, 2007
It is commonly believed that since the 1973 oil crisis, oil and energy prices have been more volatile than other commodity prices. This study examines monthly producer prices for thousands of products over the period January 1945 through August 2005.
openaire   +3 more sources

“Three‐Color” Chemical Selectivity between Oxide, Nitride, and Silicon: Area‐Selective Deposition of Metal Oxide and Polymer on SiN and Si‐H versus SiO2

Advanced Materials Technologies, EarlyView.
Molybdenum hexafluoride as a pretreatment is able to create a chemical contrast between SiN and SiO2 surfaces via selective fluorine passivation of the oxide. One dose of MoF6 enabled 9.7 nm of selective deposited TiO2 on SiN versus SiO2 with selectivity >0.92 on a nanoscale SiN/SiO2 patterned surface.
Jeremy M. Thelven, Hannah R. M. Margavio, Hwan Oh, Corey M. Efaw, Paul H. Davis, Elton Graugnard, Gregory N. Parsons   +6 more
wiley   +1 more source

Electrolyte‐Jet 3D Printing of Copper‐Based Strain Sensors for Physiological Signal Monitoring and Robotic Manipulation

Advanced Materials Technologies, EarlyView.
Electrolyte‐jet (EJ) 3D printing turns copper ions into precisely arranged copper microspheres, which combine with flexible polymers and carbon nanomaterials to create durable, high‐sensitivity sensors. These sensors accurately monitor human motion and physiological signals. Real‐time robotic hand control via gesture mirroring demonstrates an intuitive
Wending Gu, David Payne, Binesh Puthen Veettil   +2 more
wiley   +1 more source

Advanced Materials in Responsible Electronics: Innovations for Sustainability, Health, and Circularity

Advanced Materials Technologies, EarlyView.
Contemporary electronic devices produce significant waste, harming ecosystems. Innovation in design, consumption, materials, and end‐of‐life management is crucial. This review explores advanced materials for sustainable and responsible electronics, highlighting their potential to reduce environmental and health hazards while improving device ...
Rawan Omar, Jiawei Yang, Tan‐Phat Huynh, Kiran Gulia, Sooyun Caroline Tavolacci, Weiwei Wu, Yan Wang, Hossam Haick   +7 more
wiley   +1 more source

Multimaterial Microrobots for pH Sensing Fabricated Using Sequential 3D and 4D Printing with Automated Alignment

Advanced Materials Technologies, EarlyView.
This work proposes the use of multimaterial microrobots for pH sensing. The microrobots consist of a hard polymer backbone and 4D printed sensing elements made of a pH‐responsive hydrogel. The swelling response, reusability, and high mobility of the microrobots make them promising tools for pH sensing at the micro scale.
Daniel Maher, Marcin Piekarczyk, Stefan Sützl, Andreu Murillo Vilella, Marc Fiechter, Yekaterina Tskhe, Colm Delaney, Rafael Taboryski, Larisa Florea, Ada‐Ioana Bunea   +9 more
wiley   +1 more source

EXTRACTION OF COMPOUNDS FROM THYME LEAVES AND THIER ANTIMICROBIAL ACTIVITY

مجلة ديالى للعلوم الزراعية, 2019
Thyme plant leaves were collected from locally Khanaqin marked-Diyala, Iraq. Volatile oil successfully was extracted from leaves of thyme using aqueous extract method. The aqueous extracted oil yield was 4 %.
Nazar Muhammad Samein, Fouad Hussein Kamel   +1 more
doaj   +1 more source

Controlled Air Gap Formation between W and TiO2 Films via Sub‐Surface TiO2 Atomic Layer Etching

Advanced Materials Technologies, EarlyView.
Delivering SiH4 and WF6 to a lined array of TiO2 films produces a thin film of tungsten while simultaneously, the underlying TiO2 is removed. When the W‐coated TiO2 structure is exposed to further etching cycles after deposition, TiO2 etching continues vertically and laterally, creating a self‐supported W structure and a vacant air gap.
Hannah R. M. Margavio, Jimmy Nguyen, Man Hou Vong, Nicholas M. Carroll, Ishwar Singh, Noel Arellano, Gregory N. Parsons   +6 more
wiley   +1 more source

Volatile oil well test analysis: application of two-phase pseudo-pressure approach

Journal of Petroleum Exploration and Production Technology, 2019
This study investigates flow behavior in the volatile oil reservoirs with two‐phase flow around the wellbore and the application of two-phase pseudo-pressure function for well test analysis in such volatile oil reservoirs.
Hamid Baniasadi, Fariborz Rashidi
doaj   +1 more source

Surface‐Mounted Metal‐Organic Framework for the Adsorption and Sensing of Monoaromatic Pollutants in Water Using Quartz Crystal Microbalance

Advanced Materials Technologies, EarlyView.
A hydrophobic metal‐organic framework (UHMOF‐100) is grown on a quartz crystal microbalance sensor for the first time. The device enables real‐time, selective detection of monoaromatic BTEX pollutants in water, demonstrating a new strategy for creating robust chemical sensors for challenging environmental monitoring applications. Abstract Environmental
Per Reichert, Jaskaran Singh Malhotra, Deepthy Krishnan, Sinem Evli, Srihari Yamunan, Clara Dávila Duarte, Mariusz Kubus, Jonas Sundberg   +7 more
wiley   +1 more source

Anti-borreliae efficacy of selected organic oils and fatty acids

BMC Complementary and Alternative Medicine, 2019
Background Borrelia sp. is a causative pathogen of Lyme disease which has become a worldwide health concern. Non-toxic approaches especially directed toward latent persistent forms of this pathogen are desired.
Anna Goc, Aleksandra Niedzwiecki, Matthias Rath   +2 more
doaj   +1 more source