scholarly journals A new insight to the scaling-law fluid associated with the Mandelbrot scaling law

2021 ◽  
Vol 25 (6 Part B) ◽  
pp. 4561-4568
Author(s):  
Xiao-Jun Yang ◽  
Jian-Gen Liu
Keyword(s):  
Traditional Approach ◽  
Scaling Law ◽  
Fluid Flows ◽  
Fractal Scaling ◽  
Vector Calculus ◽  
Quantum Equations ◽  
Insight Into

This paper addresses a non-traditional approach for the scaling-law fluid-flows described by fractal scaling-law vector calculus associated with the Mandelbrot scaling law. Their quantum equations were proposed to control the fluid-flows associated with the Mandelbrot scaling law. This gives a new insight into the descriptions for the scaling-law behaviors of the fluid-flows in the Mandelbrot scaling-law phenomena.

scholarly journals A new insight into vector calculus with respect to monotone functions for the complex fluid-flows

2020 ◽  
Vol 24 (6 Part A) ◽  
pp. 3835-3845
Author(s):  
Xiao-Jun Yang
Keyword(s):  
Turbulent Flows ◽  
Fluid Flows ◽  
Navier Stokes ◽  
Monotone Functions ◽  
Vector Calculus ◽  
Complex Fluid ◽  
First Time ◽  
Insight Into

In the paper, the Navier-Stokes-type equations of the complex fluid-flows, the equations of the complex turbulent flows, and Euler-type equations of the complex fluid-flows based on the theory of the new vector calculus with respect to monotone functions are investigated for the first time.

scholarly journals New insight into the Fourier-like and Darcy-like models in porous medium

2020 ◽  
Vol 24 (6 Part A) ◽  
pp. 3847-3858
Author(s):  
Xiao-Jun Yang
Keyword(s):  
Heat Transfer ◽  
Porous Medium ◽  
Transfer Process ◽  
Scaling Law ◽  
Heat Transfer Process ◽  
Fractal Scaling ◽  
Special Cases ◽  
General Calculus ◽  
Insight Into

In this study, we propose the general calculus operators based on the Richardson scaling law and Korcak scaling law. The Richardson-scaling-law calculus is considered to investigate the Fourier-like law for the scaling-law flow of the heat in the heat-transfer process. The Korcak-scaling-law calculus is used to model the Darcy-like law for describing the scaling-law flow of the fluid in porous medium. The formulas are as the special cases of the topology calculus proposed for descriptions of the fractal scaling-law behaviors in nature phenomena.

On the theory of the fractal scaling-law elasticity

Meccanica ◽  
2021 ◽  
Author(s):  
Xiao-Jun Yang ◽  
Jian-Gen Liu ◽  
Mahmoud Abdel-Aty
Keyword(s):  
Scaling Law ◽  
Fractal Scaling

Multi-fractal scaling law for split strength of concrete cubes

2016 ◽  
Vol 68 (3) ◽  
pp. 141-150 ◽  
Author(s):  
Ragip Ince ◽  
Mesut Gör ◽  
Kürşat Esat Alyamaç ◽  
Mehmet Esen Eren
Keyword(s):  
Scaling Law ◽  
Fractal Scaling

scholarly journals Intercultural Training: Learn to avoid treading on other people’s toes or experience walking in the other person’s shoes

2014 ◽  
Vol 1 (1) ◽  
Author(s):  
Kristin Rygg
Keyword(s):  
Intercultural Communication ◽  
Traditional Approach ◽  
The Other ◽  
Intercultural Training ◽  
Theoretical Discussion ◽  
Culture Clash ◽  
Interactive Tools ◽  
Case Work ◽  
Insight Into

This article raises the question of whether the traditional approach in intercultural training focusing on knowledge about cultural differences and skills to avoid culture clash is sufficient in order to prepare intercultural communication trainees for dynamic and psychologically demanding multicultural environments. Inspired by the concept of mentalizing in the psycho-therapeutic method called Mentalization-based treatment, training that encourages imaginatively “seeing the other from the inside and oneself from the outside” is suggested as better able to prepare for complex intercultural realities. Tolerance is seen as tolerance for being in the intercultural process as much as tolerance for others’ differences. A theoretical discussion between the notion of mentalizing in mentalization-based treatment and perceptions of empathy, imagination and mindfulness further provides insight into the role of interactive tools such as case work and role plays in intercultural training. These, in turn, are seen as best suited to fulfil the goals and ambitions of the theories. However, experiences gained from them must be verbalized in order to cause increased awareness.

Modeling seed dispersal of black cherry, an invasive forest tree: how microsatellites may help?

2006 ◽  
Vol 36 (6) ◽  
pp. 1385-1394 ◽  
Author(s):  
Marie Pairon ◽  
Mathieu Jonard ◽  
Anne-Laure Jacquemart
Keyword(s):  
Traditional Approach ◽  
Forest Tree ◽  
Dispersal Distance ◽  
Prunus Serotina ◽  
Accurate Information ◽  
Black Cherry ◽  
Dispersal Curves ◽  
Seed Shadows ◽  
Dispersal Events ◽  
Insight Into

We used empirical models and three dispersal functions (Weibull, lognormal and 2Dt) to model seed distributions derived from the black cherry (Prunus serotina Ehrh.) understorey of a pine-dominated stand. Two different approaches were used to disentangle the overlapping seed shadows: the traditional inverse modeling approach and the genetic approach that uses microsatellite markers to assign a dispersed seed to its maternal parent. The distinction was made between the seeds passively dispersed by gravity (fruits with mesocarp) and those dispersed by birds (fruits without mesocarp). Our main objectives were to compare the three dispersal functions and assess the differences between the two approaches used. The functions performed equally well, but the lognormal function often showed a better data correlation. The best dispersal curves obtained by both traditional and genetic approaches were quite similar for the seeds dispersed by gravity, and 95% of these seeds were predicted to fall 5 and 3 m away from the parent tree for the traditional and genetic approaches, respectively. Differences were more important for the seeds dispersed by birds. The traditional approach predicted a lower number of seeds near the parent plant and a higher dispersal distance. Microsatellites provided accurate information on individual dispersal events and led to a better insight into the dispersal process.

scholarly journals Time-reversal symmetric component of the flagellar beat enhances the translational and rotational velocities of isolated Chlamydomonas flagella

2021 ◽  
Author(s):  
Azam Gholami ◽  
Raheel Ahmad ◽  
Albert J Bae ◽  
Alain Pumir ◽  
Eberhard Bodenschatz
Keyword(s):  
Beat Frequency ◽  
Fluid Flows ◽  
Symmetric Mode ◽  
Wave Component ◽  
Intrinsic Curvature ◽  
Flagellar Beat ◽  
Cilia And Flagella ◽  
Micro Organisms ◽  
Insight Into ◽  
Dynamic Wave

The beating of cilia and flagella is essential to perform many important biological functions, including generating fluid flows on the cell surface or propulsion of micro-organisms. In this work, we analyze the motion of isolated and demembranated flagella from green algae Chlamydomonas reinhardtii, which act as ATP-driven micro-swimmers. The waveform of the Chlamydomonas beating flagella has an asymmetric waveform that is known to involve the superposition of a static component, corresponding to a fixed, intrinsic curvature, and a dynamic wave component traveling in the base-to-tip direction at the fundamental beat frequency, plus higher harmonics. Here, we demonstrate that these modes are not sufficient to reproduce the observed flagella waveforms. We find that two extra modes play an essential role to describe the motion: first, a time-symmetric mode, which corresponds to a global oscillation of the axonemal curvature, and second, a secondary tip-to-base wave component at the fundamental frequency that propagates opposite to the dominant base-to-tip wave, albeit with a smaller amplitude. Although the time-symmetric mode cannot, by itself, contribute to propulsion (scallop theorem), it does enhance the translational and rotational velocities of the flagellum by approximately a factor of 2. This mode highlights a long-range coupled on/off activity of force-generating dynein motors and can provide further insight into the underling biology of the ciliary beat.

scholarly journals Studying Unemployment Effects on Mental Health: Social Media versus Traditional Approach

2020 ◽  
Author(s):  
Samara Ahmed ◽  
Adil E. Rajput ◽  
Akil Sarirete ◽  
Asmaa Aljaberi ◽  
Ohoud Alghanem ◽  
...  
Keyword(s):  
Mental Health ◽  
Social Media ◽  
Traditional Approach ◽  
Human Life ◽  
Financial Strain ◽  
Involuntary Unemployment ◽  
Social Exchanges ◽  
Medical Practitioners ◽  
Health Social Media ◽  
Insight Into

Social media, traditionally reserved for social exchanges on the net, has been increasingly used by researchers to gain insight into different facets of human life. Unemployment is an area that has gained attention by researchers in various fields. Medical practitioners especially in the area of mental health have traditionally monitored the effects of involuntary unemployment with great interest. In this work, we compare the feedback gathered from social media using crowdsourcing techniques to results obtained prior to the advent of Big Data. We find that the results are consistent in terms of 1) financial strain is the biggest stressor and concern, 2) onslaught of depression is typical and 3) possible interventions including reemployment and support from friends and family is crucial in minimizing the effects of involuntary unemployment. Lastly, we could not find enough evidence to study effects on physical health and somatization in this work.

The onset of fragmentation in binary liquid drop collisions

2012 ◽  
Vol 702 ◽  
pp. 5-25 ◽  
Author(s):  
C. Planchette ◽  
E. Lorenceau ◽  
G. Brenn
Keyword(s):  
Impact Parameter ◽  
Liquid Drop ◽  
Scaling Law ◽  
General Description ◽  
Immiscible Liquids ◽  
Fragmentation Threshold ◽  
Binary Collisions ◽  
Fragmentation Thresholds ◽  
The Impact ◽  
Insight Into

AbstractBinary collisions of drops of immiscible liquids are investigated experimentally at well-defined conditions of impact. In the experiments we vary all relevant properties of an aqueous and an oil phase, the impact parameter, the drop size and the relative velocity. The drops observed after the collisions exhibit three main phenomena: full encapsulation, head-on fragmentation, and off-centre fragmentation. The regimes characterized by these phenomena replace the ones observed in binary collisions of drops of the same liquid: coalescence, reflexive separation, and stretching separation. Our aim is a universal description of the two fragmentation thresholds of such collisions. Based on the capillary instability and an energy balance, we establish for head-on collisions a scaling law for the evolution of the threshold impact velocity with the properties of the liquids and the droplet size. The fragmentation threshold for off-centre collisions is compared to established models from the literature, which appear unsatisfactory. Introducing an effective impact parameter, which accounts empirically for the deformation and rotation of the drops upon impact, we describe this fragmentation threshold in a universal way. For both fragmentation thresholds, the agreement between experimental data and their theoretical representation is very good. Our work yields new insight into binary collisions of drops and proposes a perspective to develop a more general description with implications for binary collisions of drops of a single liquid as well.

scholarly journals Between Diversity, Representation and ‘Best Evidence’: Rethinking Select Committee Evidence-Gathering Practices

2019 ◽  
Vol 72 (4) ◽  
pp. 945-964 ◽  
Author(s):  
Danielle Beswick ◽  
Stephen Elstub
Keyword(s):  
Public Engagement ◽  
Social Care ◽  
Traditional Approach ◽  
Evidence Base ◽  
Select Committee ◽  
Evidence Gathering ◽  
Public Scrutiny ◽  
Traditional Approaches ◽  
Insight Into ◽  
Instrumental Reasons

Abstract Select committees play an important role in scrutinising government policy. They have come under increasing pressure to seek evidence for their inquiries—including both formal and informal evidence—from a wider range of stakeholders. Two particular pressures can be observed within this trend. First, committees are expected to show commitment to hearing from a more diverse set of stakeholders. The second pressure relates to the representativeness of those providing evidence. Consequently, they have been urged to increase public engagement. The recent Citizens’ Assembly into adult social care points to one mechanism for engaging a ‘mini-public’ in committee inquiries. Due to their use of random and stratified sampling to recruit participants, mini-publics could diversify the evidence base and facilitate public scrutiny of the committees. However, we know little of what committee members and staffs think about these issues. In this article, we draw insights from over 60 interviews with select committee chairs, members and staff to gain insight into their perspectives on evidence diversity and the potential of mini-publics to promote this. We find that traditional approaches to inquiries are still favoured. While mini-publics are seen as a solution to the failings of current approaches to public engagement, this is for instrumental reasons, meaning that they are only valued in particular circumstances. Ultimately, further culture change is required if committee inquiries are to move substantially beyond the traditional approach.

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