Results 1 to 10 of about 1,838,491 (298)

Coherent poly propagation materials with 3-dimensional photonic control over visible light.

PLoS ONE, 2019
The purpose of the present research was to identify and examine materials demonstrating a previously undiscovered property of coherent poly propagation (CPP). The materials were amorphous silicates as natural precious opals. CPP enabled three-dimensional
Michelle R Stem
doaj   +1 more source

Phosphorus emitter and metal - grid optimization for homogeneous (n+p) and double-diffused (n++n+p) emitter silicon solar cells

Materials Research, 2009
This work focuses on studying two types of structure: homogeneous and double-diffused emitter silicon solar cells. The emitter collection efficiencies and the recombination current densities were studied for a wide range of surface dopant concentrations ...
Manuel Cid Sánchez, Nair Stem
doaj   +1 more source

Homogeneous Gaussian Profile P+-Type Emitters: Updated Parameters and Metal-Grid Optimization

Materials Research, 2002
P+-type emitters were optimized keeping the base parameters constant. Updated internal parameters were considered. The surface recombination velocity was considered variable with the surface doping level.
M. Cid, N. Stem
doaj   +1 more source

Studies of phosphorus Gaussian profile emitter silicon solar cells

Materials Research, 2001
Considering recent modifications on n-type highly doped silicon parameters, an emitter optimization was made based on one-dimensional models with analytical solutions. In order to get good accuracy, a fifth order approximation has been considered.
N. Stem, M. Cid
doaj   +1 more source

Assessment of established techniques to determine developmental and malignant potential of human pluripotent stem cells

Nature Communications, 2018
The International Stem Cell Initiative tests methods in a multisite study to detect pluripotency and teratoma formation (PluriTest, Embryoid Body and Teratoma methods) in human pluripotent stem cells.
The International Stem Cell Initiative
doaj   +1 more source

Retracted: Segmentation Algorithm of Magnetic Resonance Imaging Glioma under Fully Convolutional Densely Connected Convolutional Networks

Stem Cells International, 2023
Stem Cells International
doaj   +1 more source

Retracted: Study of the Structure and Properties of ZnS Utilized in a Fluorescence Biosensor

Stem Cells International, 2023
Stem Cells International
doaj   +1 more source

Retracted: lncRNA HOTTIP Recruits EZH2 to Inhibit PTEN Expression and Participates in IM Resistance in Chronic Myeloid Leukemia

Stem Cells International, 2023
Stem Cells International
doaj   +1 more source

EFFECT OF 2,4-DICHLOROPHENOXYACETIC ACID ON THE CONTENT OF THIAMINE, RIBOFLAVIN, NICOTINIC ACID, PANTOTHENIC ACID AND CAROTENE IN STEMS AND LEAVES OF RED KIDNEY BEAN PLANTS [PDF]

, 1949
R. W. Luecke, C. L. Hamner, Harold M. Sell   +2 more
openalex   +1 more source

Retracted: Analysis of Adverse Pregnancy Outcomes of Pregnant Women with Syphilis and Maternal-Infant Serological Association in Changzhou, China, 2015–2019

Stem Cells International, 2023
Stem Cells International
doaj   +1 more source