Results 131 to 140 of about 4,800 (298)

Stochastics integral equations with respect to semimartingales [PDF]

Stochastic integral equations were first developed by mathematicians as a tool for the explicit construction of the paths of diffusion processes for given coefficients of drift and diffusion. Since many physical, engineering, biological as well as social
Mao, Xuerong
core  

Impulsive functional-differential equations of first order [PDF]

, 2007
In this paper we present some existence results for impulsive functional-differential equations of first ...
Skóra, Lidia
core   +1 more source

Depression, Anxiety and Criminal Behaviour Between Ages 32 and 48: A Propensity Score Matching Analysis From the Cambridge Study in Delinquent Development

Criminal Behaviour and Mental Health, EarlyView.
ABSTRACT Background Depression, anxiety and criminal behaviour are often correlated, but the direction and nature of these associations remain contested. Aims To investigate the temporal relationships between depression and/or anxiety and criminal behaviour at age 32 and depression and/or anxiety and criminal behaviour at age 48.
Kim Reising, Maria M. Ttofi
wiley   +1 more source

Theory and applications of first-order systems of Stieltjes differential equations

Advances in Nonlinear Analysis, 2017
We set up the basic theory of existence and uniqueness of solutions for systems of differential equations with usual derivatives replaced by Stieltjes derivatives.
Frigon Marlène, Pouso Rodrigo López
doaj   +1 more source

Mechanochemical Amidation Mediated by 1,1’‐Oxalyldiimidazole for the Synthesis of Agrochemicals

Chemistry – A European Journal, EarlyView.
Mechanochemical amidation using 1,1'‐oxalyldiimidazole (ODI) overcomes limitations of 1,1’‐carbonyl diimidazole (CDI) as coupling agent by enabling the efficient mechanochemical synthesis of three marketed agrochemicals from deactivated carboxylic acids.
Andrea Casagrande, Rubén Solorzano‐Rodriguez, Maria Carta, Francesco Delogu, Joris Vezzani, Allan Niidu, Evelina Colacino   +6 more
wiley   +1 more source

Automated Process Optimization in a Novel Triple Shaft Mixer with Adaptive Mixing Modes

Chemie Ingenieur Technik, EarlyView.
A novel multi‐purpose mixer with adjustable blade angle and a coaxial stirrer is developed, providing three degrees of freedom. An optimization strategy is integrated to autonomously identify optimal operating conditions through automated tests. The current draw of the main stirrer serves as the optimization criterion, while stirrer speeds, directions,
B. Schwarz, H. Kniele, J. A. Lindner
wiley   +1 more source

Reverse Engineering and Performance Evaluation of a Pump Impeller Fabricated With Additive Manufacturing

Chemie Ingenieur Technik, EarlyView.
This study explores the process chain for reverse engineering and additive manufacturing of a water pump impeller in a process plant. Key aspects include digital twin creation, CAD redesign, material certification, Hirtisation postprocessing, and performance testing. Insights highlight iterative design for improved precision and reliability.
Michael Stadler, Kati Schatz, Sebastian Rehfeldt, Harald Klein   +3 more
wiley   +1 more source

Oscillation for Forced Second-Order Impulsive Nonlinear Dynamic Equations on Time Scales

Discrete Dynamics in Nature and Society, 2019
As the unification and development of impulsive differential equations and difference equations, impulsive dynamic equations on time scales are a powerful tool to simulate the natural and social phenomena. In this paper, we study the interval oscillation
Mugen Huang, Kunwen Wen
doaj   +1 more source

Optical Multiphase Conductivity Inline Probe: Characterization and Analysis of Foam Structures

Chemie Ingenieur Technik, EarlyView.
A novel inline probe combines optical imaging and electrical conductivity within a shared measurement volume, enabling simultaneous determination of foam structure and composition. The method provides real‐time access to cell size distributions and liquid fractions under process conditions. ABSTRACT For inline process analysis of foams, a novel optical
Marc Hofmann, Ferdinand Breit, Hans‐Jörg Bart, Erik von Harbou   +3 more
wiley   +1 more source

Antisolvent crystallization of lithium hydroxide monohydrate: Significant factors and kinetics analysis

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Crystallization is the final stage in lithium hydroxide monohydrate (LiOH · H2O) production, and antisolvent crystallization offers a lower‐energy route compared with evaporative methods. In this study, we investigated bench‐scale ethanol‐based antisolvent crystallization of LiOH · H2O, and identified the significant impact parameter via a ...
Chentao He, Liuyin Xia
wiley   +1 more source