5,614 research outputs found
Polymer translocation induced by adsorption
We study the translocation of a flexible polymer through a pore in a membrane
induced by its adsorption on \trans side of the membrane. When temperature
is higher than , the adsorption-desorption transition temperature,
attractive interaction between polymer and membrane plays little role in
affecting polymer conformation, leading to translocation time that scales as
where is the polymer contour length. When ,
however, the translocation time undergoes a sharp crossover to
for sufficiently long polymers, following the second order conformational
(adsorption) transition. The translocation time is found to exhibit the
crossover around , which is lower than for polymers shorter than
a critical length().Comment: 19 pages RevTeX, 5 postscript figures, to be published in J. Chem.
Phys. 108(7), 3013 (1998
Is Augmented Reality in Denial of the Convention? Examining the Presence of Uncanny Valley in Augmented Reality
Uncanny valley is a theorized psychological phenomenon, which captures a non-monotonic relationship between an entity\u27s anthropomorphic level and the shinwakan (affinity) its viewers feel toward the entity. According to the theory, viewers feel a stronger affinity to an anthropomorphic entity as its level of human likeness increases until it reaches a certain point where that affinity is brought to a sudden drop. This valley, although frequently observed, still remains not well understood or explained. That said, most studies purport to present an explanation to the valley in context of robotics or computer-generated images portrayed on 2D surfaces, but it is unclear whether these explanations are applicable to different platforms that offer a completely different user experience. Hence, this study attempts to explore the uncanny valley in context of the augmented reality. AR overlays texts and images on top of our visual feed to interactively blend the real and the virtual world. With its immersive and interactive nature, AR may potentially offer us a new perspective in understanding uncanny valley. The rules that we believed governed the uncanny valley in robotics and previous 2D platforms may no longer be applicable to AR. Consequently, this study observes a relational trend between entities uncanniness and human likeness using Microsoft Hololens via the user survey and biometrics data to offer viable explanations to how we should interpret the uncanny valley in AR setting
Polymer Release out of a Spherical Vesicle through a Pore
Translocation of a polymer out of curved surface or membrane is studied via
mean first passage time approach. Membrane curvature gives rise to a constraint
on polymer conformation, which effectively drives the polymer to the outside of
membrane where the available volume of polymer conformational fluctuation is
larger. Considering a polymer release out of spherical vesicle, polymer
translocation time is changed to the scaling behavior for
, from for , where is the polymer contour
length and , are vesicle radius and polymer radius of gyration
respectively. Also the polymer capture into a spherical budd is studied and
possible apparatus for easy capture is suggested.Comment: 14 pages RevTeX, 6 postscript figures, published in Phys. Rev. E 57,
730 (1998
Distribution of Korean Family Names
The family name distribution in Korea is investigated in comparison with
previous studies in other countries. In Korea, both the family name and its
birthplace, where the ancestor of the family originated, are commonly used to
distinguish one family name from the others. The family name distributions with
and without the information of the regional origins are analyzed by using
different data sets of various sizes, and compared with previous studies
performed in other countries. The growth rate of the family is empirically
obtained. Contrary to commonly used assumptions, the growth rate is found to be
higher for the smaller family.Comment: 13 pages in one column forma
- …