Results 81 to 90 of about 3,770,349 (181)
Rank of the derivative of the projection to symmetrized polydisc
We prove that the rank of the derivative of the projection from spectral unit ball to symmetrized polydisc is equal to the degree of the minimal polynomial of the matrix at which we take derivative.Comment: 7 pages, 0 figure.
Anh, Tran Duc
core
Preventing CKD in Low- and Middle-Income Countries: A Call for Urgent Action
The epidemiologic transition occurring in low- and middle-income countries (LMICs) has led to a surge in chronic kidney disease (CKD) prevalence because of a combination of highly prevalent chronic noncommunicable diseases (NCDs) and communicable ...
Oluwatoyin I. Ameh+2 more
doaj
Effect of a Carboxylic Acid on Rheological Properties of a High Alumina Cement Mortar [PDF]
In this work, we studied the effect of carboxylic acid on the rheological properties of a high-alumina cement mortar (CH45) produced by the Algerian firm REFRACTAL.The investigated properties are setting time, water consumption, electrical conductivity ...
Farouk Benali+4 more
doaj
DC-SPP-YOLO: Dense Connection and Spatial Pyramid Pooling Based YOLO for Object Detection
Although YOLOv2 approach is extremely fast on object detection; its backbone network has the low ability on feature extraction and fails to make full use of multi-scale local region features, which restricts the improvement of object detection accuracy ...
Huang, Zhanchao, Wang, Jianlin
core
Development and implementation of a simulated microgravity setup for edible cyanobacteria
Regenerative life support systems for space crews recycle waste into water, food, and oxygen using different organisms. The European Space Agency’s MELiSSA program uses the cyanobacterium Limnospira indica PCC8005 for air revitalization and food ...
Gabriele Ellena+6 more
doaj +1 more source
Summary: Cultures of Limnospira indica were exposed to low-dose rate γ-irradiation for 8 weeks to simulate 2 months of a Mars transit irradiation. Two experiments were conducted: in the first, 5% v/v inoculations were used over 2-week batches; in the ...
Jana Fahrion+4 more
doaj