Results 71 to 80 of about 3,399,545 (214)
Frontiers in Microbiology, 2017 Nitrogen sources in the must are important for yeast metabolism, growth, and performance, and wine volatile compounds profile. Yeast assimilable nitrogen (YAN) deficiencies in grape must are one of the main causes of stuck and sluggish fermentation.
Antoine Gobert +7 more
semanticscholar +1 more source
Foods, 2019 Minimizing flavor variation in cheeses without perceived flavor defects in order to produce a consistent product is a challenge in the Swiss cheese industry.
Hardy Z. Castada +2 more
doaj +1 more source
Analysis of the volatiles in the headspace above the plasmodium and sporangia of the slime mould (Physarum polycephalum) by SPME-GCMS [PDF]
arXiv, 2013 Solid phase micro-extraction (SPME) coupled with Gas Chromatography Mass Spectrometry (GC-MS) was used to extract and analyse the volatiles in the headspace above the plasmodial and sporulating stages of the slime mould Physarum Polycephalum. In total 115 compounds were identified from across a broad range of chemical classes.
arxiv
Tropospheric volatile organic compounds in China [PDF]
Science of The Total Environment, 2017 Photochemical smog, characterized by high concentrations of ozone (O3) and fine particles (PM2.5) in the atmosphere, has become one of the top environmental concerns in China. Volatile organic compounds (VOCs), one of the key precursors of O3 and secondary organic aerosol (SOA) (an important component of PM2.5), have a critical influence on atmospheric
H. Guo +13 more
openaire +5 more sources
Ornstein-Uhlenbeck processes in Hilbert space with non-Gaussian stochastic volatility [PDF]
arXiv, 2015 We propose a non-Gaussian operator-valued extension of the Barndorff-Nielsen and Shephard stochastic volatility dynamics, defined as the square-root of an operator-valued Ornstein-Uhlenbeck process with Levy noise and bounded drift. We derive conditions for the positive definiteness of the Ornstein-Uhlenbeck process, where in particular we must ...
arxiv
Thiele's PIDE for unit-linked policies in the Heston-Hawkes stochastic volatility model [PDF]
arXiv, 2023 The main purpose of the paper is to derive Thiele's differential equation for unit-linked policies in the Heston-Hawkes stochastic volatility model introduced in arXiv:2210.15343. This model is an extension of the well-known Heston model that incorporates the volatility clustering feature by adding a compound Hawkes process in the volatility. Since the
arxiv
, 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
Journal of Dairy Science, 2017 Lactic acid bacteria (LAB) are industrially important bacteria that are widely used in the fermented food industry, especially in the manufacture of yogurt.
T. Dan +5 more
semanticscholar +1 more source
A study of volatile compounds in the breath of children with type 1 diabetes [PDF]
arXiv, 2013 A pilot study of exhaled volatile compounds and their correlation with blood glucose levels in eight children with type 1 diabetes is reported. Five paired blood and breath samples were obtained from each child over a 6 hour period. The blood glucose concentration ranged from 41.4 to 435.6 mg/dL.
arxiv
Multiscale Stochastic Volatility Model for Derivatives on Futures [PDF]
, 2013 In this paper we present a new method to compute the first-order approximation of the price of derivatives on futures in the context of multiscale stochastic volatility of Fouque \textit{et al.} (2011, CUP). It provides an alternative method to the singular perturbation technique presented in Hikspoors and Jaimungal (2008).
arxiv +1 more source