Results 1 to 10 of about 663 (68)

Effect of rare earth elements on microstructure and mechanical properties of bainite/martensite bearing steel

open access: yesJournal of Materials Research and Technology, 2023
This study aims to investigate the effect of rare earth (RE) elements on the microstructure and mechanical properties of bainite/martensite (B/M) bearing steel.
Zan Li   +5 more
doaj   +1 more source

Ảnh hưởng của nồng độ NAA và loại cành giâm đến sự ra rễ cành giâm linh sam (Desmodium unifoliatum (Merr.) Steen.)

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2020
Thí nghiệm được thực hiện nhằm tìm ra nồng độ naphthalene acetic acid (NAA) và loại cành thích hợp đến sự ra rễ của cành giâm cây linh sam (Desmodium unifoliatum (Merr.) Steen.).
Lê Văn Hòa   +3 more
doaj   +1 more source

Three-dimensional numerical simulations on Poiseuille-Rayleigh-Bénard convection of air in a horizontal rectangular channel

open access: yesCase Studies in Thermal Engineering, 2023
In order to reveal the combined influences of Rayleigh (Ra) number, Reynolds (Re) number and spanwise aspect ratio (B) on the flow pattern evolution and stability, and heat transfer of Poiseuille-Rayleigh-Bénard (PRB) convection, we presented a set of ...
Li Zhang   +3 more
doaj   +1 more source

The Stimulating Effect of Rosmarinic Acid and Extracts from Rosemary and Lemon Balm on Collagen Type I Biosynthesis in Osteogenesis Imperfecta Type I Skin Fibroblasts

open access: yesPharmaceutics, 2021
Rosemary extract (RE) and lemon balm extract (LBE) attract particular attention of pharmacists due to their high therapeutic potential. Osteogenesis imperfecta (OI) type I is a heritable disease caused by mutations in type I collagen and characterized by
Joanna Sutkowska   +6 more
doaj   +1 more source

Effects of Surface Roughness on Windage Loss and Flow Characteristics in Shaft-Type Gap with Critical CO2

open access: yesApplied Sciences, 2022
To investigate the effects of surface roughness on windage loss and flow characteristics in a shaft-type gap, the skin friction coefficient (Cf) and flow versus Reynolds number (Re) at different surface roughness (Ra) and radius ratio (η) values were ...
Lehao Hu   +4 more
doaj   +1 more source

Vegetative cuttings of polyscias fruticosa in the aeroponic self-effacing system

open access: yesTạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kỹ thuật và Công nghệ, 2019
A self-effacing system based on the model of Farranand Mingo-Castel(2006). The model was carried out in a two-stage aquarium. The upper chamber for the trunk grown with direct radiation of the membrane and closed lower compartment to ...
Nguyễn Thanh Mai   +1 more
doaj   +1 more source

Ảnh hưởng của một số yếu tố đến sinh trưởng của chồi dạ yến thảo (Petunina hybrida L.) trong hệ thống vi thuỷ canh

open access: yesTạp chí Khoa học và Công nghệ, 2023
Dạ yến thảo có tên khoa học là Petunia hybrida L. Cây rất được ưa chuộng trên thị trường cây cảnh vì cho hoa đẹp, màu sắc phong phú và hương thơm dễ chịu. Phương pháp vi thủy canh kế thừa nhiều ưu điểm của kỹ thuật thủy canh và phương pháp vi nhân giống,
Võ Thanh Phúc, Nguyễn Phương Thy
doaj  

Satellite-Based Inversion and Field Validation of Autotrophic and Heterotrophic Respiration in an Alpine Meadow on the Tibetan Plateau

open access: yesRemote Sensing, 2017
Alpine meadow ecosystem is among the highest soil carbon density and the most sensitive ecosystem to climate change. Partitioning autotrophic (Ra) and heterotrophic components (Rm) of ecosystem respiration (Re) is critical to evaluating climate change ...
Ben Niu   +8 more
doaj   +1 more source

Genetic dissection of retinoid esterification and accumulation in the liver and adipose tissue

open access: yesJournal of Lipid Research, 2014
Approximately 80–90% of all retinoids in the body are stored as retinyl esters (REs) in the liver. Adipose tissue also contributes significantly to RE storage.
Nuttaporn Wongsiriroj   +8 more
doaj   +1 more source

Monocyte scintigraphy in rheumatoid arthritis: the dynamics of monocyte migration in immune-mediated inflammatory disease. [PDF]

open access: yesPLoS ONE, 2009
BACKGROUND:Macrophages are principal drivers of synovial inflammation in rheumatoid arthritis (RA), a prototype immune-mediated inflammatory disease. Conceivably, synovial macrophages are continuously replaced by circulating monocytes in RA.
Rogier M Thurlings   +9 more
doaj   +1 more source

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