Results 31 to 40 of about 19,243 (241)

Research on power flux-density at the earth’s surface produced by emissions from the steerable beam of LEO constellation system

open access: yesDianxin kexue, 2022
The power flux-density (PFD) is an interference criterion for protecting terrestrial service systems from space service systems.A calculation method on the PFD produced by the emissions from the steerable beam of low earth orbit (LEO) constellation ...
Ying HUANG, Wei LI, Chen JIAN, Kang YAN
doaj   +2 more sources

PFD and effectiveness values of active measures [57].

open access: yes, 2023
PFD and effectiveness values of active measures [57].
Kun Zhao (279513)   +4 more
core   +1 more source

PFD

open access: yes, 2019
Simplified PFD of Capstone designed using Autodesk ...
Ngai To Lo (4615132)
core   +1 more source

Pirfenidone regulates antioxidant response via NRF2 in an experimental model of hepatocellular carcinoma

open access: yesAnnals of Hepatology, 2022
Introduction and Objectives: 1) Determinate if pirfenidone (PFD) modifies oxidative stress markers. 2) Evaluate PFD effects on transcription factor Nrf2 signaling pathway.
HC Monroy-Ramírez   +4 more
doaj   +1 more source

PELATIHAN PEMBUATAN PROCESS FLOW DIAGRAM (PFD) MENGGUNAKAN APLIKASI VISIO DI SMKN 8 BANDAR LAMPUNG [PDF]

open access: yes, 2023
ABSTRAKPengembangan pendidikan Sekolah Menengah Kejuruan (SMK) di Indonesia harus diarahkan untuk beradaptasi dengan dinamika global dan nasional khususnya terhadap Revolusi Industri 4.0. Berdasarkan penerapan Kurikulum Merdeka, program keahlian yang ada
Dedi Teguh   +15 more
core   +1 more source

Curvature‐Directed Elongation and Chiral Tilting Drive Asymmetric Tissue Patterning

open access: yesAdvanced Science, EarlyView.
Curvature and cell handedness together break tissue symmetry. On convex and concave surfaces, cells elongate along opposite geometric axes and tilt in a consistent chirality‐driven direction, yielding opposite alignment patterns from the same cells. Reversing intrinsic cell chirality reverses both.
Liyao Xu   +6 more
wiley   +1 more source

Personal Flotation Device (PFD) [PDF]

open access: yes, 2015
This poster features Uncle Sam wearing a personal flotation device (PFD) and pointing his finger while saying, I want you to wear a PFD.https://digitalcommons.cwu.edu/government_posters/1090/thumbnail ...
United States Army Corps of Engineers
core   +1 more source

Operationalizing BioSSbD: A safe‐and‐sustainable‐by‐design framework for biorefineries

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Biorefineries are central to the transition toward a circular bioeconomy; however, their increasing scale and technological heterogeneity, and the integration of biological, chemical, and thermochemical processes introduce complex challenges related to safety, sustainability, and operational reliability. Existing Safe‐and‐Sustainable‐by‐Design
Fernando Ramonet
wiley   +1 more source

摄动有限差分(PFD)方法的数值计算

open access: yes, 2003
利用数值摄动的思想发展了对流扩散(CD)方程的摄动有限差分(PFD)格式,局部线化可获得摄动准确解(PENS)格式。把格式中的指数函数按网格雷诺数的幂级数展开,能够给出PENS格式的各阶近似,即各阶PFD格式。文中构造了一维CD方程的PENS及二阶PFD格式以及二维CD方程的二阶PFD格式,并利用二阶精度的PFD格式计算了一维CD方程、方腔流动和前、后台阶绕流流动等算例 ...
高智, 胡利民, 朱力立
core   +2 more sources

Nopal and Pirfenidone Ameliorate Epididymal Fat Weight and Anthropometric Parameters in a Mouse Obesity Model with Diethylnitrosamine

open access: yesAnnals of Hepatology
Introduction and Objectives: Obesity is associated with liver diseases. Mexico has a high prevalence of obesity and metabolic dysfunction-associated steatotic liver disease (MASLD).
Jorge Gutiérrez-Cuevas   +3 more
doaj   +1 more source

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