Results 11 to 20 of about 1,281 (194)

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

A preliminary survey of plant parasitic nematodes on carrots in Hai Duong province, Vietnam [PDF]

open access: yes, 2016
A
Duyen, Nguyen Thi   +3 more
core   +2 more sources

. In vitro propagation of the new orchid Dendrobium trankimianum T. Yukawa [PDF]

open access: yes, 2020
Dendrobium trankimianum T. Yukawa is a beautiful, endemic orchid of Vietnam, a new species with a first - published description in 2004. It is very rare and expected to be added to the IUCN Red List status - CR. In vitro studies of orchid D. trankimianum
Duy, Nong Van   +5 more
core   +1 more source

Strata of standardization: the Phong Nha dialect of Vietnamese (Quảng Bình Province) in historical perspective [PDF]

open access: yes, 2015
International audienceThe present research, based on first-hand data, is intended as a contribution to the study of the present-day diversity of lesser-described Vietnamese dialects, and of the range of evolutionary paths to which they testify.
Ferlus, Michel   +2 more
core   +4 more sources

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

Research progress on rheumatoid arthritis-associated depression

open access: yesFrontiers in Behavioral Neuroscience, 2023
Depression is an independent mood disorder and one of the most common comorbidities of rheumatoid arthritis (RA). Growing evidence suggests that there is two-way regulation between RA and depression, resulting in a vicious cycle of RA, depression, poor ...
Nian Liu   +7 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

Evaluation of plant growth regulators on root formation of semihardwood and hardwood cuttings of Sarcandra glabra (Thunb.) Nakai [PDF]

open access: yes, 2016
The aim of this study is to evaluate the effects of three types of plant growth regulators (α- naphthyl acetic acid, indole-3-acetic acid and β-indol butyric acid) on the root formation of the semihardwood and hardwood cuttings of Sarcandra glabra (Thunb.
En, Le Hong   +2 more
core   +2 more sources

Evaluation and multi-criteria optimization of surface roughness, deviation from dimensional accuracy and roundness error in drilling CFRP/Ti6Al4 stacks [PDF]

open access: yesFME Transactions, 2022
In this study, machinability tests were carried out to investigate the effects of control factors (cutting tool geometry, cutting speed, and feed rate) on the surface roughness (Ra), deviation from dimensional accuracy (Da_dev), roundness error (Re) in ...
Motorcu Ali Riza, Ekici Ergün
doaj   +1 more source

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