Results 111 to 120 of about 10,734,950 (291)

Research on the Optimization Strategy of the Speed Ratio Control Parameter of Vehicle Swing Pin Chain CVT

open access: yesJixie chuandong, 2020
Speed ratio control is one of the key technologies in transmission control field. The fuzzy PID control method is adopted to simulate the automobile cycle working condition by analyzing the structure and working principle of the swing pin chain CVT,the ...
Guo Wei   +3 more
doaj  

Automatization of multistep sample preparation for microplastics monitoring in aquatic environments

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Microplastics (MP) have been found in every environmental compartment in urban and remote areas. Although their ubiquity is widely recognized, the lack of harmonized protocols for sampling, sample preparation, and particle identification/quantification hinders comparability among studies.
Markus Sillanpää   +3 more
wiley   +1 more source

Property Rights Entrepreneurship: The Drive for Product, Asset, and Resource Excludability

open access: yesManagerial and Decision Economics, EarlyView.
ABSTRACT Property rights are foundational to market economies, and entrepreneurial activity depends heavily on the excludability afforded by property rights. Yet, the role of entrepreneurs in shaping the evolution of property rights has been so thoroughly taken for granted that it often vanishes from analyses.
Thomas J. Dean   +2 more
wiley   +1 more source

Designing ZV and ZVD Input Shapers Using the Designed Fixed Output Response Method to Suppress Residual Vibration of Overhead Crane Systems With Trolley Traveling and Payload Hoisting

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Classical Zero Vibration (ZV) and Zero Vibration and Derivative (ZVD) input shapers are designed around a fixed nominal natural frequency and cannot accommodate the time‐varying dynamics introduced when an overhead crane simultaneously travels and hoists a payload.
Mohammad Alfares, Khaled Alhazza
wiley   +1 more source

Adaptive Cruise Control System: A Literature Survey

open access: yesJournal of Engineering
Adaptive cruise control (ACC) assists automobiles in preserving a safe following distance and adhering to speed limits. This advanced driver-assistance system (ADAS) modifies the car's speed to keep a safe gap from oncoming traffic.
Farah M. Ali, Nizar H. Abbas
doaj   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Effects of adjustable‐volume transfemoral prosthetic sockets on balance and falls: A randomized clinical trial

open access: yesPM&R, EarlyView.
Abstract Background Adjustable‐volume prosthetic sockets have been developed to allow users to accommodate volume fluctuations throughout the day. Improvement in socket fit is thought to enhance the connection between the user's residual limb and prosthesis and may therefore improve postural control and balance.
Deanna H. Gates   +6 more
wiley   +1 more source

Design and simulation of a cruise control sytem in Matlab - Simulink

open access: yes, 2023
openProgettazione di un sistema di cruise control impiegato per il controllo della velocità di un veicolo. Inizialmente viene svolta un’analisi matematica del modello per poi procedere con la realizzazione del controllore basata su specifiche richieste.
CARLETTI, MARCO
core  

Persistence of seed‐applied pesticides in soybeans: environmental influences and implications for crop protection

open access: yesPest Management Science, EarlyView.
Early soybean planting in cool, wet soils slows emergence and results in about half the insecticide and fungicide concentrations at vegetative emergence compared with standard planting, where faster emergence maintains roughly double the pesticide concentrations, yet pesticide persistence remains similar across both planting dates.
Sadhana Chhetri   +2 more
wiley   +1 more source

Design, analysis and simulation of a "cruise control" system in MatLab/Simulink

open access: yes, 2022
openIl Cruise Control è un sistema elettronico che si trova nella maggior parte dei veicoli moderni. Per funzionare esso fa uso di un sistema di controllo retrazionato che valuta la velocità corrente e la confronta con quella desiderata apportando le ...
VERRI, MARCO
core  

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