scispace - formally typeset
Search or ask a question

What are some research gaps in parametric energy transfer and internal resonance? 


Best insight from top research papers

Research gaps in parametric energy transfer and internal resonance can be identified from the abstracts provided. One research gap is the need for a more detailed understanding of the phenomenon of parametric roll resonance in ships, including the complex interaction between the ship and the fluid. The selected ship models in provide a physically correct representation of the dynamics, but they cannot reproduce the ship-fluid interaction in great detail. Another research gap is the need for a better understanding of the mechanisms of energy transfer in dusty plasma systems. The extended Mathieu equation is used to describe the dynamics of dusty particles and the energy transfer between horizontal and vertical particle motion based on parametric resonance in . However, more precise descriptions of the conditions for resonance and the initial stage of energy transfer are needed. Additionally, there is a research gap in the understanding of anomalous behavior in auto-parametrically excited microelectromechanical beams, as observed in . This behavior falls outside the scope of conventional descriptions of parametric resonance and requires further investigation.

Answers from top 4 papers

More filters
Papers (4)Insight
The provided paper does not mention any specific research gaps in parametric energy transfer and internal resonance.
Open accessJournal ArticleDOI
T. Markvart, R. Greef 
12 Citations
The provided paper does not mention any research gaps in parametric energy transfer and internal resonance.
The provided paper does not mention any specific research gaps in parametric energy transfer and internal resonance.
The provided paper does not mention any specific research gaps in parametric energy transfer and internal resonance.

Related Questions

Gaps in psychological research?5 answersGender gaps persist in psychological research, with women being underrepresented in academic sciences despite making up the majority of psychology students. These gaps are evident in publication and citation records, remaining consistent across subdisciplines and time periods. Factors such as journal impact and author position influence the magnitude of these gaps, with high-impact journals and last-author positions showing larger disparities. Additionally, there are knowledge gaps in psychological health management within the military health system, particularly in areas like PTSD, suicide prevention, and substance use, highlighting the need for evidence synthesis to prioritize research needs. Efforts to bridge the gap between psychological research and practice are crucial, as they can enhance HR management practices and organizational functioning by leveraging psychological theories and research findings.
What are the research gaps of the paper?5 answersThe research gaps of the papers are as follows: - The first paper by Das et al. focuses on feature selection for image classification and identifies research gaps in this area. - The second paper, which has the same abstract as the first paper, also identifies research gaps in feature selection for image classification. - The third paper by Annane et al. analyzes virtualization approaches in Mobile Cloud Computing (MCC) and identifies a research gap related to protecting data from being stolen while distributed VMs are exchanging data. - The fourth paper by Hewapathirana et al. identifies nine research gaps in Green Human Resource Management (GHRM) through a literature review. - The fifth paper by Boyd et al. discusses the research gaps in combating the spread of viral hepatitis and treating infected individuals, particularly in reaching key populations and the infrastructure required to do so.
What are some research gaps in parametric energy transfer and internal resonance in meme resonators?4 answersResearch gaps in parametric energy transfer and internal resonance in MEMS resonators can be identified based on the abstracts provided. One research gap is the need for further investigation into the nonlinear dynamics of MEMS arches subjected to a combination of AC and DC loadings in the presence of internal resonance. Another research gap is the exploration of the enhanced functionality of MEMS resonators through the coupling and energy transfer between multiple vibrational modes. Additionally, there is a lack of comprehensive experimental studies on the various types of internal resonances in arches at the micro and nano scales. Furthermore, there is a need for more research on the dynamic characteristics and potential applications of internal resonance in MEMS vibration devices. These research gaps highlight the need for further investigation and exploration in the field of parametric energy transfer and internal resonance in MEMS resonators.
What are the research gaps that you want to fulfil?5 answersThere are several research gaps that need to be fulfilled based on the abstracts provided. These include: 1. Understanding the reasons for low coverage of HBV vaccination in certain regions of the world and the need for a prophylactic vaccine for HCV. 2. The lack of sound empirical analysis and evaluation of DDoS defense solutions, leading to network operators relying on basic defense techniques. 3. Gaps in knowledge regarding the etiology, prevalence, and trends of hypertension in children and adolescents, as well as the long-term impacts of hypertension and the safety and efficacy of antihypertensive therapy in youth. 4. The need for a broader characterization of African genomic diversity to better understand demographic history and improve global human health. 5. Limited research on the relationship between market mavenism and personality antecedents, as well as the consequences of mavenism such as brand loyalty and frugality.
What are some of the research gaps that you want to fill?1 answersThere are several research gaps that need to be addressed. Firstly, there is a need for further understanding of the influence of pyrolyzed biomass-derived nanoparticles (PBNPs) on contaminant transport. Secondly, there is a lack of research on the decline of insect diversity, particularly in the tropics, where the majority of insect abundance, diversity, and biomass is found. Additionally, there is a need for more evidence and research on the final steps required to eliminate hepatitis B virus (HBV) and hepatitis C virus (HCV) globally, including the development of prophylactic vaccines and the extension of treatment eligibility. Furthermore, there is a research gap in understanding the implications of glaucophane mesothelioma potency and lung cancer potency, as well as the fibrosity index of glaucophane. Overall, these research gaps highlight the need for further studies to address critical questions and improve our understanding in these areas.
Are there any research gaps?3 answersThere are research gaps identified in the abstracts. These gaps refer to areas where there is a lack of knowledge or unanswered research questions. The gaps can arise due to various reasons such as constraints in study design, use of inadequate tools, or external influences that the study cannot control. The abstracts highlight the importance of identifying these gaps as they provide opportunities for new research and contribute to the expansion of knowledge in the respective fields. The abstracts also emphasize the need for collaborative and multidisciplinary research networks to address these gaps and improve patient care and outcomes in areas such as anaphylaxis management. Additionally, gaps in knowledge exist in the diagnosis, management, and treatment of hypertension in children and adolescents, including areas such as etiology, prevalence, and long-term impacts. These research gaps indicate the need for further investigation and the potential for significant contributions to the respective fields.

See what other people are reading

Does DFT get a over charge delocalization?
5 answers
Density Functional Theory (DFT) often suffers from overcharge delocalization, leading to errors in predicting properties of materials. This delocalization error arises due to the deviation of approximate functionals from the exact functional behavior for fractional charges, causing incorrect densities and molecular properties. Specifically, in the case of carbon-doped hexagonal boron nitride, nonhybrid DFT approximations predict spurious long-range charge transfer, affecting catalytic activity predictions. To address this issue, density-corrected (DC-)DFT has been proposed, utilizing a Hartree-Fock density to incorporate electron correlation and avoid self-interaction error, thereby detecting and correcting situations where delocalization error may impact results. Incorporating long-range-corrected hybrid DFT approximations can mitigate delocalization errors and improve the accuracy of predictions in materials science studies.
How does the delocalization error of DFT on charge transport of organic semiconductor?
5 answers
The delocalization error of Density Functional Theory (DFT) significantly impacts the charge transport in organic semiconductors. Delocalization in organic materials can notably enhance exciton transport by enabling more frequent and longer hops for excitons. Additionally, electron delocalization in molecular orbitals influences the charge transfer between semiconductors and probe molecules, affecting Surface-Enhanced Raman Scattering (SERS) activity. Furthermore, the temperature-dependent mobility in high-mobility organic molecular crystals is influenced by the delocalization of different states accessible by charge carriers, which is dependent on the specific electronic band structure of the systems. Understanding and mitigating delocalization errors in DFT calculations are crucial for accurately predicting and optimizing charge transport properties in organic semiconductors.
How does the problem of the DFT delocalization error affect modeling charge transport of organic semiconductor?
5 answers
The issue of DFT delocalization error impacts the modeling of charge transport in organic semiconductors by affecting the accuracy and efficiency of simulations. Utilizing neural network-based Hamiltonians trained on DFT or DFTB data significantly reduces computational costs in nonadiabatic molecular dynamics simulations, enhancing accuracy and efficiency in charge transport modeling. Delocalization plays a crucial role in enhancing exciton transport in disordered organic semiconductors, increasing diffusion coefficients and enabling more frequent and longer hops for excitons. Moreover, increasing conjugation length and orbital delocalization in novel imide-functionalized thiazole compounds improves charge transport efficiency and electron mobility, highlighting the importance of delocalization for enhancing charge carrier transport characteristics in organic semiconductors.
How to reduce the voltage loss of tandem solar cell?
5 answers
To reduce voltage losses in tandem solar cells, strategies such as introducing narrow bandgap organic molecules, passivating wide bandgap perovskites, and suppressing non-emissive triplet excitonshave been effective. By employing synergistic approaches like using lead thiocyanate and 2-thiopheneethylammonium chloride to stabilize wide bandgap perovskites, or developing ultra-narrow bandgap acceptors like BTPSeV-4F, voltage losses can be minimized. Additionally, optimizing interconnection layers to minimize lossesand broadening the absorption spectra of organic solar cellscan further enhance efficiency. These approaches collectively address optical losses, non-radiative recombination, and other factors contributing to voltage losses, leading to significant improvements in tandem solar cell performance.
What are Challenges and Best Opportunities in Studying Aluminum to Alumina Transformation Conceptuals (plasma flame route insight)?
6 answers
Studying the transformation of aluminum to alumina, especially through the plasma flame route, presents a unique set of challenges and opportunities that are critical to advancing our understanding and application of this process. One of the primary challenges lies in the quantitative insight into fuel-air plasma kinetics, which is essential for plasma-assisted ignition and flameholding. This requires a deep understanding of pulsed electric discharge dynamics, molecular energy transfer in reacting flows, and plasma chemical reactions. Additionally, the dispersion of alumina particle sizes resulting from condensation in thermal plasma highlights the complexity of controlling and predicting the outcomes of such transformations. The combustion of metals, such as aluminum, at high temperatures and the resultant high-intensity radiation pose significant challenges for imaging and characterization, necessitating the development of alternative techniques like copper vapor laser (CVL) illumination to "see through the flames". Moreover, the combustion mechanisms of aluminum particles and the propagation of dust flames in mixtures require further investigation to understand the ignition and inter-particle interactions better. The surface properties of transition aluminas, crucial for catalytic applications, remain only conceptually understood due to the structural disorder and challenges in studying high surface-area materials. Opportunities for advancing this field include employing coatings, such as Viton A, on aluminum particles to enhance combustion characteristics by facilitating oxidant access to the core Al, thereby reducing ignition temperature and duration. The catalytic effects of fluorides on the phase transformation of alumina also offer a pathway to control and optimize the process. However, bridging the gap between the theoretical understanding and practical applications of aluminum to alumina transformation remains a significant challenge, as evidenced by the disconnect between higher education outcomes and the needs of the economy in related fields. Addressing these challenges through experimental, modeling, and educational approaches will unlock the best opportunities for leveraging the plasma flame route in aluminum to alumina transformation.
How has excimer photophysics helped in research?
5 answers
Excimer photophysics has significantly contributed to research by enabling the development of fluorescently labeled oligomers and polymers for various applications. Novel organic chromophores forming emissive excimers have shown superior properties to pyrene, particularly in chemo- and biosensor design. Spatially confined ladderphanes have provided insights into excimer emission mechanisms, with temperature-dependent emission shifts indicating excimer formation. A multistate energy decomposition analysis method for excimers using density functional theory has been introduced, shedding light on exciton coupling, superexchange, and delocalization energies in excited-state complexes. These advancements highlight the importance of excimer photophysics in understanding molecular interactions, developing sensitive sensors, and exploring energy transfer processes in various systems.
There are much works about synthesis methods of ternary quantum dots in aqueous for teranosthic?medium?
5 answers
Various works have focused on synthesizing ternary quantum dots (QDs) in aqueous media for potential theranostic applications. These studies highlight the importance of reproducible synthetic methods, monodisperse nanoparticle production, and environmentally friendly approaches. Ternary QDs like ZnInS (ZIS) QDs have been synthesized with a core/shell structure, offering improved photoluminescence quantum yield and unique optical properties, making them promising for diverse applications. Additionally, the synthesis of alloyed semiconductor QDs, such as CdSe1−xSx, has shown modified structures and optical properties, indicating potential for theranostic applications. These advancements in ternary QD synthesis in aqueous media pave the way for utilizing these nanomaterials in theranostic platforms, combining diagnostic and therapeutic functionalities.
Can photoionization generate blue shift in quantum dots?
5 answers
Photoionization in quantum dots can indeed lead to a blue shift under certain conditions. The size, temperature, and pressure of the quantum dots play crucial roles in this phenomenon. Increasing the dot radius or applying hydrostatic pressure can cause a blue shift in the photoionization cross section (PCS). Additionally, in type-II quantum dots with spatially separated electrons and holes, the multi-particle structure can exhibit a blue-shift of the emission with pumping, as observed in experiments and theoretical calculations. Therefore, the optical properties of quantum dots, including the blue shift induced by photoionization, are influenced by various factors such as confinement potential, impurity location, and synthetic conditions during growth.
Does increase in nonradiative recombination increases in photocatalytic activity?
4 answers
Increase in nonradiative recombination can actually enhance photocatalytic activity in certain cases. For instance, in the study by Blashkov I. V and Titov V. V, it was found that creating a ZnO/ZnO1-x/O- 2D structure on the ZnO surface suppressed radiative decay of excitons, leading to more efficient redox reactions. Additionally, the research by Yinan Shu and Benjamin G. Levinedemonstrated that specific defect structures on the oxidized surface of silicon nanocrystals facilitated nonradiative recombination, which could potentially enhance photocatalytic performance. These findings suggest that under certain conditions, an increase in nonradiative recombination can indeed contribute to improved photocatalytic activity.
How much more probably is triplet formation in iridium complexes?
5 answers
Triplet formation in iridium complexes is significantly more probable compared to other sensitizers. Zinc dipyrromethene complexes exhibit triplet quantum yields of 16-27% without heavy atoms, which increase to 62-63% with heavy I atoms, showcasing a substantial enhancement in triplet formation. Additionally, cyclometalated heavy metal complexes like tris-Ir(III) complex TBz3Ir demonstrate long triplet lifetimes and enhanced charge transport, leading to high power conversion efficiencies exceeding 11% in organic solar cells. Furthermore, the inclusion of highly phosphorescent heavy-metal organic complexes in plastic displays induces a ten- to twenty-fold increase in host triplet states, emphasizing the prevalence of triplet formation in heavy-metal complexes. These findings collectively highlight the superior propensity for triplet formation in iridium complexes compared to other sensitizers.
What factors affect the accuracy of gas temperature measurements using the lamgmiur probe in RF ICP?
5 answers
The accuracy of gas temperature measurements using a Langmuir probe in RF ICP is influenced by various factors. These include the presence of dust in the plasma, which can lead to temperature measurement uncertainties. Additionally, in high-density plasmas, traditional methods for interpreting Langmuir probe characteristics may not be valid, requiring new parametrization and iteration schemes for rapid data analysis. Furthermore, the ac-coupling effect in pulsed discharges can result in misestimation of plasma parameters, particularly affecting the determination of plasma density in the early afterglow. Employing advanced techniques like the LSTM approach can enhance the accuracy and speed of plasma probe diagnosis, providing more precise electron density and temperature measurements.