12 papers · ranked by Valyu relevance
Hameed Ullah Khan, Nasru Minallah, Arbab Masood, Amaad Khalil + 3 more
'Jaroslav Frnda' 'Jan Nedoma' 'Luís Castedo Ribas'] The introduction of 5G with excessively high speeds and ever-advancing cellular device capabilities has increased the demand for high data rate wireless multimedia communication. Data compression, transmission robustness and error resilience are introduced to meet the…
Lukas Jabs, Xin Zhou, Lars Penter, Steffen Ihlenfeldt + 1 more
This work is devoted to generating and investigating microstructure representations of glued hollow-sphere assemblies, which combine low weight with excellent damping properties for use in machine tools. As a first step, we model the microstructure of such assemblies based on a dedicated analysis of the size…
Yamel Ungson, Larysa Burtseva, Edwin R. Garcia-Curiel, Benjamin Valdez Salas + 3 more
The filling of channels in porous media with particles of a material can be interpreted in a first approximation as a packing of spheres in cylindrical recipients. Numerous studies on micro- and nanoscopic scales show that they are, as a rule, not ideal cylinders. In this paper, the channels, which have an irregular…
Weiwei Jin, Peng Lu, Shuixiang Li
Particle shape plays a crucial role in determining packing characteristics. Real particles in nature usually have rounded corners. In this work, we systematically investigate the rounded corner effect on the dense packings of spherotetrahedral particles. The evolution of dense packing structure as the particle shape…
Xuebin Wang, Jiahao Guo, Yao Li
Sphere packings in circular cylinders have attracted substantial research interest, among which the discovery of chiral helical structures is the most iconic. However, recent experimental results on zebrafish do not match the known packing structures in circular cylinders. To account for the inherent imperfections of…
Junho Cho, Xi Chen, Greg Raybon, Di Che + 3 more
'Samuel Olsson' 'Robert Tkach'] In optical communications, sphere shaping is used to limit the energy of lightwaves to within a certain value over a period. This minimizes the energy required to contain information, allowing the rate of information transmission to approach the theoretical limit if the transmission…
Thomas D. Schneider, Vishnu Jejjala, Wai Ho Mow
Restriction enzymes recognize and bind to specific sequences on invading bacteriophage DNA. Like a key in a lock, these proteins require many contacts to specify the correct DNA sequence. Using information theory we develop an equation that defines the number of independent contacts, which is the dimensionality of the…
Chengjie Xia, Jindong Li, Yixin Cao, Binquan Kou + 4 more
'Kamel Fezzaa' 'Tiqiao Xiao' 'Yujie Wang'] Glass transition is accompanied by a rapid growth of the structural relaxation time and a concomitant decrease of configurational entropy. It remains unclear whether the transition has a thermodynamic origin, and whether the dynamic arrest is associated with the growth of a…
Huang Huang, Cheng-Ping Huang, Chao Zhang, Xu-Hao Hong + 3 more
'Xue-Jin Zhang' 'Yi-Qiang Qin' 'Yong-Yuan Zhu'] Ewald sphere is a simple vector scheme to depict the X-ray Bragg diffraction in a crystal. A similar method, known as the nonlinear Ewald sphere, was employed to illustrate optical frequency conversion processes. We extend the nonlinear Ewald sphere to the Ewald shell…
Yalina García-Puente, Jean-Jacques Laurin, Raman Kashyap
This work reports experimental investigation and numerical validation of millimeter-sized Spherical Bragg Resonators (SBRs) fabricated using 3D printing technology. The frequency dependencies of the reflection and transmission coefficients were analyzed, and eigenfrequency values were calculated to examine the density…
Jian Wang, Jun Liu, Shuhui Li, Yifan Zhao + 2 more
Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension of light waves into a helical phase structure, has given rise to many applications in optical manipulation, microscopy, imaging, metrology, sensing, quantum science, and optical communications. Light beams carrying OAM feature two…
Zhicheng Shen, Sajjad Taravati, Jize Yan
In modern wireless communication systems, data transmission is achieved through the collaboration of digital modulation circuits and antennas. Digital baseband signals are first modulated in terms of amplitude, frequency, and phase of the carrier wave and then transmitted directionally via antennas. However, in…