Results 91 to 100 of about 24,151,088 (246)

Parametric Modeling of Part and Component in Cartesian Transfer Robot based on CATIA

open access: yesJixie chuandong, 2015
Based on four degrees of freedom cartesian transfer robot structural model,the method of parametric modeling of the main part and component of the cartesian robot are studied.Considering the actual needs of different production lines,and combined with ...
Tian Yuan   +4 more
doaj  

Reconstruction method of microstructure and mechanical properties simulation of three-dimensional needling composites

open access: yesJournal of Aeronautical Materials
The in-situ tensile X-ray micro-CT technology,image analysis and fine structure reconstruction method are used to complete the quantitative description of complex geometric structures such as fiber and crack of three-dimensional needling composites.
ZHU Zhaojun   +3 more
doaj   +1 more source

Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley   +1 more source

基于MATLAB及Pro/E的参数化非圆齿轮设计

open access: yesJixie chuandong, 2010
Based on the actual design of gear during the production process,as well as the formation principle of involute profile and gear meshing principle,the mathematical model of a noncirle gear tooth profile is set up.
胡赤兵, 姚洪辉
doaj  

Parametric Statistics and the General Linear Model [PDF]

open access: yes, 2014
Too many students acquire statistical knowledge and techniques independent of each other. The purpose of this paper is to illustrate the many connections mathematically between parametric statistics and the General Linear Model.
John A Rochowicz Jr
core  

Accurate and noninvasive prostate cancer detection using plasma‐derived extracellular vesicle RNA

open access: yesFEBS Open Bio, EarlyView.
Plasma extracellular vesicles were captured with WGA‐conjugated magnetic beads and profiled for RNA biomarkers. A three‐RNA panel (NM_024955, NR_047469, and NR_002564) distinguished prostate cancer from healthy controls and benign prostatic hyperplasia, supporting a simple, noninvasive approach to improve prostate cancer detection.
Hanping Wei, Haoran Wu, Wei Feng
wiley   +1 more source

Evolution‐guided yeast complementation reveals functional differences in human PSPH variants

open access: yesFEBS Open Bio, EarlyView.
Ancient genomes can help guide which human genetic variants are tested experimentally. This study applies that idea to PSPH, a gene involved in serine biosynthesis, and uses high‐throughput yeast complementation to compare variant function. The findings reveal measurable differences among selected alleles and illustrate the value of evolution‐guided ...
Mauricio Campa‐Álvarez   +6 more
wiley   +1 more source

Identifying and characterising a plant GH1 β‐glucosidase that exhibits hydrolytic activity on N‐linked glucopyranoside

open access: yesFEBS Open Bio, EarlyView.
We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli   +3 more
wiley   +1 more source

The structure of a three-dimensional turbulent boundary layer [PDF]

open access: yes, 1993
The three-dimensional turbulent boundary layer is shown to have a self-consistent two-layer asymptotic structure in the limit of large Reynolds number.
Degani, AT, Smith, FT, Walker, JDA
core  

Structural studies and functional engineering of NanX: an anhydro‐sialic acid transporter from Escherichia coli

open access: yesFEBS Open Bio, EarlyView.
Biophysical characterisation shows that NanX, a membrane transport protein from the major facilitator superfamily (MFS), forms both monomers and dimers after purification. AlphaFold modelling and substrate docking provide information on residues likely involved in substrate recognition for NanX and another MFS member, NanT.
Michael C. Newton‐Vesty   +13 more
wiley   +1 more source

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