Results 11 to 20 of about 780,612 (302)

A Review of the Recent Developments in the Bioproduction of Polylactic Acid and Its Precursors Optically Pure Lactic Acids

open access: yesMolecules, 2021
Lactic acid (LA) is an important organic acid with broad industrial applications. Considered as an environmentally friendly alternative to petroleum-based plastic with a wide range of applications, polylactic acid has generated a great deal of interest ...
Shiyong Huang   +5 more
doaj   +1 more source

An engineered dimeric protein pore that spans adjacent lipid bilayers [PDF]

open access: yesNature Communications, 2013
The bottom-up construction of artificial tissues is an underexplored area of synthetic biology. An important challenge is communication between constituent compartments of the engineered tissue, and between the engineered tissue and additional compartments, including extracellular fluids, further engineered tissue and living cells.
Mantri, S   +4 more
openaire   +3 more sources

Engineering an External Memory Minimum Spanning Tree Algorithm [PDF]

open access: yes, 2006
We develop an external memory algorithm for computing minimum spanning trees. The algorithm is considerably simpler than previously known external memory algorithms for this problem and needs a factor of at least four less I/Os for realistic inputs.
Dementiev, Roman   +3 more
openaire   +3 more sources

Improvement of the Performance-Based Seismic Design Method of Cable Supported Bridges with the Resilient-Friction Base Isolation Systems

open access: yesApplied Sciences, 2020
In areas of civil engineering, the resilient friction base isolator (R-FBI) system has been used due to its enhanced isolation performance under seismic excitations.
Heungbae Gil   +3 more
doaj   +1 more source

Collaborative Infrastructure for Distance-Spanning Concurrent Engineering [PDF]

open access: yes, 2006
Design of complex Systems-on-a-Chip requires often integration of large teams of engineers who work in remote locations. Seamless and secure integration of distant tools across different organization over the Internet is still one of major challenges that obstacles efficient engineering collaboration. The paper explains the main element of the advanced
Pawel Fras   +7 more
openaire   +1 more source

Fabrication of single-mode channel polymer waveguides using vacuum assisted microfluidic soft lithography [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2013
We report on the fabrication of single-mode channel waveguide structures produced by the vacuum assisted microfluidic soft lithography technique. The soft lithographic technique in conjunction with a specially designed photomask pattern and a synthesized
Baig S., Jiang G., Sun Q., Wang M. R.
doaj   +1 more source

Optimization of Ultrahigh-Throughput Screening Assay for Protein Engineering of d-Allulose 3-Epimerase

open access: yesBiomolecules, 2022
d-Allulose is the corresponding epimer of d-fructose at the C-3 position, which exhibits a similar taste and sweetness to sucrose. As a low-calorie sweetener, d-allulose has broad application prospects in the fields of medicine, food, and so on ...
Zhanzhi Liu   +7 more
doaj   +1 more source

Electric field noise above surfaces: a model for heating rate scaling law in ion traps [PDF]

open access: yes, 2008
We present a model for the scaling laws of the electric field noise spectral density as a function of the distance, $d$, above a conducting surface. Our analytical approach models the patch potentials by introducing a correlation length, $\zeta$, of the ...
Coudreau, Thomas   +2 more
core   +4 more sources

Analysis of the Seismic Performance of Site-Bolted Beam to Column Connections in Modularized Prefabricated Steel Structures

open access: yesAdvances in Materials Science and Engineering, 2017
This paper proposes a site-bolted connection that is suitable for modularized prefabricated steel structures. Excellent ductility is achieved by various structural measures.
Xuechun Liu   +3 more
doaj   +1 more source

A three-dimensional intelligent engineering management and control system for the construction of a long-span valve hall project based on a microservice architecture.

open access: yesPLoS ONE, 2021
Three-dimensional intelligent engineering management and control systems (EMCS) based on the browser/server (B/S) model are an important part of intelligent engineering development.
Qinghe Zeng   +6 more
doaj   +1 more source

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