Results 61 to 70 of about 1,683,306 (233)

Determination of Monoethylene Glycol in Gas Condensate Samples by Microchip Micellar Electrokinetic Chromatography Integrated With Capacitively Coupled Contactless Conductivity Detection

open access: yesELECTROPHORESIS, EarlyView.
ABSTRACT This study describes the use of microchip micellar electrokinetic chromatography (MEKC) integrated with capacitively coupled contactless conductivity detection (C4D) for the determination of monoethylene glycol (MEG) in gas condensate samples.
Maurício M. L. Pereira   +6 more
wiley   +1 more source

Adaptive Model Predictive Control for LCL-Filter Grid-Tied Inverters

open access: yesIEEE transactions on industrial electronics (1982. Print)
This article proposes adaptive continuous-control-set model predictive control (CCS-MPC) for three-phase LCL-filter grid-tied inverters in the stationary frame. The proposed control provides stability against the LCL-filter resonance and removes the need
H. Zamani   +3 more
semanticscholar   +1 more source

Indole‐Based π‐Extended Monophosphine Ligands for Enhanced Palladium‐Catalyzed Sonogashira Coupling

open access: yesJournal of Heterocyclic Chemistry, EarlyView.
A general palladium‐catalyzed Sonogashira cross‐coupling of (hetero)aryl chlorides with aliphatic, (hetero)aryl alkynes is described using Pd(dba)₂/PCy2‐Napdole‐phos catalyst system. The reaction protocol exhibits broad substrate scope and the catalyst loading can be down to 0.2 mol% Pd.
Yu Kiu Lau   +9 more
wiley   +1 more source

Influence of LCL Output Filter Parameter Changing on D-STATCOM Compensation Characteristics

open access: yes机车电传动, 2015
Aim at the problem of D-STATCOM output containing plenty of switching ripple, LCL filter was designed. Influence of LCL filter parameters on the compensation characteristic of D-STATCOM was studied. Considering the compensation capacity of the D-STATCOM,
ZHANG Xingru
doaj  

Windowed Mean Drift Exponentially Weighted Moving Average Control Chart for Monitoring Complex Autocorrelated Processes

open access: yesQuality and Reliability Engineering International, EarlyView.
ABSTRACT In modern manufacturing environments, traditional statistical process control (SPC) methods often struggle with complex, dynamic data patterns, particularly when observations are autocorrelated. Control charts are useful tools used in SPC to detect any significant drift in a process.
Jeanette Maria Louw   +3 more
wiley   +1 more source

Design of PWM-SMC Controller Using Linearized Model for Grid-Connected Inverter With LCL Filter

open access: yesIEEE transactions on power electronics, 2020
Nowadays, various sliding-mode control (SMC) methods have been successfully applied to the digitally controlled grid-connected inverter (GCI) with an LCL filter.
Han Li   +5 more
semanticscholar   +1 more source

UAVs unveil the role of small scale vegetation structure on wader nest survival

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
In this study, we combine high‐resolution vegetation structural metrics derived from unmanned aerial vehicle (UAV) imagery with on‐field wader nest survival monitoring. We show that the immediate vegetation height and heterogeneity within a 2‐meter buffer surrounding the clutch of the recorded ground‐nesting wader species positively influenced its ...
Miguel Silva‐Monteiro   +5 more
wiley   +1 more source

A user‐friendly goniometer‐compatible fixed‐target platform for macromolecular crystallography at synchrotrons

open access: yesJournal of Applied Crystallography, EarlyView.
A user‐friendly fixed‐target platform for serial synchrotron crystallography is described, which allows low‐background X‐ray diffraction data collection, in situ crystallization and transportation of protein microcrystals at room temperature.Fixed‐target platforms provide convenient support for microcrystals during serial X‐ray crystallography studies ...
Swagatha Ghosh   +13 more
wiley   +1 more source

Differential and Common-Mode Model-Based Controller for a Grid-Tied Three-Phase NPC Converter

open access: yesIEEE Access
This paper introduces a controller designed for transformerless inverters connected to the grid via an inductor-capacitor-inductor (LCL) output filter. The controller incorporates a virtual ground (VG) connection, providing a straightforward solution to ...
Gerardo Escobar   +5 more
doaj   +1 more source

Seed dormancy explains plant response to mass mortality events

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Mass mortality events (MMEs) are large‐scale, rapid die‐offs resulting in extreme inputs of carrion biomass. Recent work demonstrates the effects of increasing carrion biomass on plant communities modulated by vertebrate scavengers and herbivores.
David S. Mason   +5 more
wiley   +1 more source

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