Results 111 to 120 of about 736,654 (353)
Progress of nanopreparation technology applied to volatile oil drug delivery systems
HeliyonTraditional Chinese medicine volatile oil has a long history and possesses extensive pharmacological activity. However, volatile oils have characteristics such as strong volatility, poor water solubility, low bioavailability, and poor targeting, which ...
Zu-Wen Ye +9 more
doaj
Cyclical properties of supply-side and demand-side shocks in oil-based commodity markets [PDF]
arXiv, 2016 Oil markets profoundly influence world economies through determination of prices of energy and transports. Using novel methodology devised in frequency domain, we study the information transmission mechanisms in oil-based commodity markets. Taking crude oil as a supply-side benchmark and heating oil and gasoline as demand-side benchmarks, we document ...
arxiv
Value relevance of the components of oil and gas reserve quantity change disclosures of upstream oil and gas companies in the london stock exchange [PDF]
arXiv, 2020 The high level of risk and uncertainty in harnessing oil and gas reserves poses an accounting dilemma in the reporting of reserves quantity information; information which is critical and relied on by investors for decision making. Different studies have indicated that reserves disclosure information is fundamental to understanding the value of the firm.
arxiv
Beyond 3D: Smart Material Systems for Microscale 4D Printing
Advanced Materials Technologies, EarlyView.Smart materials exhibit shape changes in response to their environment, enabling scientists to go beyond 3D in the rapidly growing field of 4D printing. This review covers recent advances, current challenges, and emerging trends in 4D printing on the microscale.
Daniel Maher +3 more
wiley +1 more source
Química Nova, 2012 The volatile oils of Dalbergia frutescens were obtained by hydrodistillation on a Clevenger-modified apparatus for every month of one year and assessed on GC/MS and GC/FID detectors for qualitative and quantitative analyses.
Caroline Eliza Mendes +6 more
doaj +1 more source
, 2017 Headspace solid-phase microextraction/gas chromatography–mass spectrometry (HS-SPME/GC–MS) analysis combined with ‘relative odour activity value (ROAV)’ was used to monitor changes in key volatile compounds in peanut oil, soybean oil, rapeseed oil, and ...
Lirong Xu +4 more
semanticscholar +1 more source
Experimental and Therapeutic Medicine, 2015 Demodex is a type of permanent obligatory parasite, which can be found on the human body surface. Currently, drugs targeting Demodex usually result in adverse effects and have a poor therapeutic effect.
Ji-xin Liu, Yan-hong Sun, Chaohua Li
semanticscholar +1 more source
Advanced Photonics Research, EarlyView.This work presents a systematic review of atmospheric turbulence fundamentals, including theoretical formulations and adaptive optics‐based mitigation strategies. This includes an in‐depth examination of the devices, theories, and methodologies associated with traditional correction approaches.
Qinghui Liu +5 more
wiley +1 more source
How does bad and good volatility spill over across petroleum markets? [PDF]
arXiv, 2014 We detect and quantify asymmetries in volatility spillovers using the realized semivariances of petroleum commodities: crude oil, gasoline, and heating oil. During the 1987--2014 period we document increasing spillovers from volatility among petroleum commodities that substantially change after the 2008 financial crisis.
arxiv
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