Results 51 to 60 of about 182,634 (299)

Lateral Fractal Formation by Crystallographic Silicon Micromachining

open access: yesFractal and Fractional, 2023
A novel wafer-scale silicon fractal fabrication method is presented here for forming pyramids only in the lateral direction using the crystal orientation of silicon. Fractals are fabricated in silicon by masking only the corners (corner lithography) of a
Lucas Johannes Kooijman   +3 more
doaj   +1 more source

The entry of multinational companies to the base of the pyramid: A network perspective [PDF]

open access: yes, 2013
Multinational corporations (MNCs) have traditionally ignored low-income markets, usually referred to as the base of the pyramid (BOP). Despite the dominant poverty in this market, a growing number of MNCs are attempting to learn about successful ...
Tasavori, M
core  

M2Det: A Single-Shot Object Detector based on Multi-Level Feature Pyramid Network

open access: yes, 2019
Feature pyramids are widely exploited by both the state-of-the-art one-stage object detectors (e.g., DSSD, RetinaNet, RefineDet) and the two-stage object detectors (e.g., Mask R-CNN, DetNet) to alleviate the problem arising from scale variation across ...
Cai, Ling   +6 more
core   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

open access: yesAdvanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han   +17 more
wiley   +1 more source

Detecting a long odd hole

open access: yes, 2020
For each integer $t\ge 5$, we give a polynomial-time algorithm to test whether a graph contains an induced cycle with length at least $t$ and ...
Chudnovsky, Maria   +2 more
core   +1 more source

Classifying Novel Phases of Spinor Atoms [PDF]

open access: yes, 2006
We consider many-body states of bosonic spinor atoms which, at the mean-field level, can be characterized by a single-particle wave function. Such states include BEC phases and insulating Mott states with one atom per site.
Barnett, Ryan   +2 more
core   +2 more sources

Mechanical Properties of Architected Polymer Lattice Materials: A Comparative Study of Additive Manufacturing and CAD Using FEM and µ‐CT

open access: yesAdvanced Functional Materials, EarlyView.
This study examines how pore shape and manufacturing‐induced deviations affect the mechanical properties of 3D‐printed lattice materials with constant porosity. Combining µ‐CT analysis, FEM, and compression testing, the authors show that structural imperfections reduce stiffness and strength, while bulk material inhomogeneities probably enhance ...
Oliver Walker   +5 more
wiley   +1 more source

Servant leadership, trust and implications for the “Base-of-the-Pyramid” segment in South Africa

open access: yesSouth African Journal of Business Management, 2011
This paper examines the relationship between servant leadership and interpersonal trust in South Africa. The results of this empirical investigation, conducted among low level employees and their managers, revealed a statistically significant ...
A. Chatbury, D. Beaty, H. S. Kriek
doaj   +1 more source

The Effect of Incubation near an Inversely Oriented Square Pyramidal Structure on Adsorption Properties of Horseradish Peroxidase

open access: yesApplied Sciences, 2022
The incubation of a solution of horseradish peroxidase (HRP) enzyme either below the apex or near the base of an inversely oriented square pyramid (inverted square pyramid; ISP) has been found to influence the enzyme’s aggregation and adsorption ...
Yuri D. Ivanov   +11 more
doaj   +1 more source

Lower bound theorems for general polytopes [PDF]

open access: yes, 2019
For a $d$-dimensional polytope with $v$ vertices, $d+1\le v\le2d$, we calculate precisely the minimum possible number of $m$-dimensional faces, when $m=1$ or $m\ge0.62d$. This confirms a conjecture of Gr\"unbaum, for these values of $m$. For $v=2d+1$, we
Pineda-Villavicencio, Guillermo   +2 more
core   +3 more sources

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