Results 61 to 70 of about 4,333,367 (185)
Ecotoxicology and Environmental SafetyCr (VI) is extremely harmful to both the environment and human health, and it can linger in the environment for a very long period. In this research, the Leersia hexandra Swartz constructed wetland-microbial fuel cell (CW-MFC) system was constructed to ...
Yucui Shi +6 more
doaj +1 more source
Investigating the content and correlates of undergraduate students' academic regrets
Frontiers in PsychologyIntroductionThe types of academic regrets that college students experience, characteristics of these regrets, and relations to motivational and emotional outcomes were investigated in two studies.MethodsStudy 1 (N = 152) explored the relations between ...
John Ranellucci
doaj +1 more source
Optimal regulation in systems with stochastic time sampling [PDF]
An optimal control theory that accounts for stochastic variable time sampling in a distributed microprocessor based flight control system is presented. The theory is developed by using a linear process model for the airplane dynamics and the information ...
Lee, P. S., Montgomery, R. C.
core +1 more source
Optimal Output Regulation for Square, Over-Actuated and Under-Actuated Linear Systems
, 2019 This paper considers two different problems in trajectory tracking control for linear systems. First, if the control is not unique which is most input energy efficient. Second, if exact tracking is infeasible which control performs most accurately. These
Adamy, Jürgen, Bernhard, Sebastian
core +1 more source
The Effect of Teacher Autonomy Support on Leisure-Time Physical Activity via Cognitive Appraisals and Achievement Emotions: A Mediation Analysis Based on the Control-Value Theory. [PDF]
Int J Environ Res Public Health, 2021 Zimmermann J +3 more
europepmc +1 more source
Robust nonlinear control of vectored thrust aircraft [PDF]
An interdisciplinary program in robust control for nonlinear systems with applications to a variety of engineering problems is outlined. Major emphasis will be placed on flight control, with both experimental and analytical studies.
Doyle, John C. +2 more
core +1 more source
, 2012 The receiver operating characteristic (ROC) curve, the positive predictive value (PPV) curve and the negative predictive value (NPV) curve are three measures of performance for a continuous diagnostic biomarker.
Feng, Ziding, Koopmeiners, Joseph S.
core +1 more source
University Student’s Emotional States during Virtual Learning
Frontline Learning ResearchThis research examines students' emotional states during a virtual course at a Finnish university. The mixed methods study drew on students' self-reported commitment, self-efficacy, experienced emotions, and open-ended descriptions related to their ...
Eija Henritius +4 more
doaj +1 more source
Periodic solutions of systems with asymptotically even nonlinearities [PDF]
, 2010 New conditions of solvability based on a general theorem on the calculation of the index at infinity for vector fields that have degenerate principal linear part as well as degenerate ... next order ...
Kloeden, Peter E. +1 more
core
Jurnal Aplikasi Bisnis dan ManajemenBackground: Currently TikTok has become the most widely used social media application for online shopping, with beauty products securing the second position as the most frequently purchased category by consumers through social media platforms.
Nurul Fathin Siregar +2 more
doaj +1 more source