Results 51 to 60 of about 856,429 (315)

Subcentimeter depth resolution using a single-photon counting time-of-flight laser ranging system at 1550 nm wavelength [PDF]

, 2007
We demonstrate subcentimeter depth profiling at a stand off distance of 330m using a time-of-flight approach based on time-correlated single-photon counting.
Nam, Sae Woo, Hernandez-Marin, Sergio, Wallace, A.M., Warburton, R.E., McCarthy, Aongus, Nam, S.W., Buller, G.S., Wallace, Andrew M., Warburton, Ryan E., Hadfield, Robert H., Hernandez-Marin, S., Hadfield, R., McCarthy, A., Buller, Gerald S.   +13 more
core   +1 more source

Comparison and Optimal Method of Detecting the Number of Maize Seedlings Based on Deep Learning

Drones
Effective agricultural management in maize production operations starts with the early quantification of seedlings. Accurately determining plant presence allows growers to optimize planting density, allocate resources, and detect potential growth issues ...
Zhijie Jia, Xinlong Zhang, Hongye Yang, Yuan Lu, Jiale Liu, Xun Yu, Dayun Feng, Kexin Gao, Jianfu Xue, Bo Ming, Chenwei Nie, Shaokun Li   +11 more
doaj   +1 more source

An Image-Based Steel Rebar Size Estimation and Counting Method Using a Convolutional Neural Network Combined with Homography

Buildings, 2021
Conventionally, the number of steel rebars at construction sites is manually counted by workers. However, this practice gives rise to several problems: it is slow, human-resource-intensive, time-consuming, error-prone, and not very accurate. Consequently,
Yoonsoo Shin, Sekojae Heo, Sehee Han, Junhee Kim, Seunguk Na   +4 more
doaj   +1 more source

Serological Benefit of SARS‐CoV‐2 Vaccination Relative to Infection in Children With Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Children with acute lymphoblastic leukemia (ALL) are at risk of severe outcomes from SARS‐CoV‐2 (SCV2). In the post‐pandemic context, where most children have been infected with SCV2, there are limited data on whether vaccination remains beneficial in children with ALL.
Janna R. Shapiro, Freda Qi, Karen Colwill, Alina D. Dorogy, Ying Liu, Michelle Science, Anne‐Claude Gingras, James M. Rini, Sumit Gupta, Sarah Alexander, Shelly Bolotin, Tania H. Watts   +11 more
wiley   +1 more source

Engaging Young Children with Mathematical Activities Involving Different Representations: Triangles, Patterns, and Counting Objects

Center for Educational Policy Studies Journal, 2018
This paper synthesises research from three separate studies, analysing how different representations of a mathematical concept may affect young children's engagement with mathematical activities.
Dina Tirosh, Pessia Tsamir, Ruthi Barkai, Esther Levenson   +3 more
doaj   +1 more source

Quantum Walk on the Generalized Birkhoff Polytope Graph

Entropy, 2021
We study discrete-time quantum walks on generalized Birkhoff polytope graphs (GBPGs), which arise in the solution-set to certain transportation linear programming problems (TLPs).
Rafael Cação, Lucas Cortez, Ismael de Farias, Ernee Kozyreff, Jalil Khatibi Moqadam, Renato Portugal   +5 more
doaj   +1 more source

Counting all, counting on, counting up, counting down

Education 3-13, 1995
In the last twenty years research on children’s acquisition of numerical skills and concepts has been a vibrant topic of enquiry amongst psychologists and educators alike. While there has been a diversity of interest between the different disciplines, there is consensus in their recognition that young children have much more mathematical knowledge and ...
openaire   +4 more sources

Deep Sequencing of FLT3‐ITD Enables Response Evaluation and Post‐Treatment Monitoring in Childhood AML: An Exploratory Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background An internal tandem duplication in the gene encoding Fms‐like tyrosine kinase 3 (FLT3‐ITD) is associated with high relapse risk and poor prognosis in acute myeloid leukemia (AML) and plays a crucial role in treatment decisions. Measurable residual disease (MRD) analysis of FLT3‐ITD during and after treatment has shown prognostic ...
Sofie Johansson Alm, Bea Tornberg, Erik Delsing Malmberg, Henrik Hasle, Kristian Løvvik Juul‐Dam, Lars Palmqvist, Borhan R. Saeed, Giti Shah Barkhordar, Anastasia Soboli, Anna Staffas, Jonas Abrahamsson, Linda Fogelstrand   +11 more
wiley   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Counting Carambolas [PDF]

Graphs and Combinatorics, 2015
update reflects journal version, to appear in Graphs and Combinatorics; 18 pages, 13 ...
Dumitrescu, Adrian, Löffler, Maarten, Schulz, André, Tóth, Csaba   +3 more
openaire   +5 more sources