Results 131 to 140 of about 12,700,661 (353)

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

open access: yesAdvanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang   +2 more
wiley   +1 more source

Fertility rebound and economic growth. New evidence for 18 countries over the period 1970?2011

open access: yes, 2015
Long-run impact of economic growth on fertility trends is ambiguous and sensitive for in-time variations. Noticeably, over last decades, economic growth has led to significant falls in total fertility rates in many countries.
Okonowicz, Anna   +2 more
core   +1 more source

Modular Critical Element Recycling Platform Using a Nanoporous Additively Manufactured Gyroid

open access: yesAdvanced Engineering Materials, EarlyView.
A modular recycling platform integrates 3D‐printed nanoporous gyroid structures to enable efficient critical element recovery. This system utilizes a hierarchical architecture, combining macroscopic channels with polymerization‐induced nanoscale porosity. By systematically tuning structural wall thickness and resin formulation, the platform achieves an
Xiangyu Gao   +6 more
wiley   +1 more source

The Oregon strategic plan for economic development: committee reports

open access: yes, 1988
General strategy -- Economic climate -- Education & workforce -- International trade -- State/local partnerships -- Small business -- Agriculture -- Biotechnology -- Film & video -- Forest products -- High technology -- Metals -- Plastics -- Services ...

core  

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

open access: yesAdvanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar   +7 more
wiley   +1 more source

Determinants of life expectancy in high longevity countries: evidence from machine learning

open access: yesFrontiers in Public Health
Health is directly aligned with Sustainable Development Goal (SDG) 3: Good Health and Well-Being, which emphasizes ensuring healthy lives and promoting well-being for all at all ages.
Hong Zhang   +6 more
doaj   +1 more source

Economic & demographic futures 1980-2000

open access: yes, 1980
reportSpecial acknowledgement is appropriate for the efforts of the Community Planning Policy Committee which provided continual guidance to the Water Quality staff over a six month period; in addition to Jean Watanbe, Office of the State Planning ...
Bureau of Economic and Business Research
core  

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

open access: yesAdvanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati   +11 more
wiley   +1 more source

Effects of Different Densities of Carbon Dioxide Generation Bags on Cucumber Growth and Yield

open access: yesHorticulturae
Carbon dioxide (CO2) is one of the important factors affecting vegetable yield in controlled environments. This study used cucumber as an experimental material to investigate the effects of hanging different amounts of CO2 generation bags (CGBs) on the ...
Yuhan Li   +5 more
doaj   +1 more source

Structural change and economic growth: Causality relationships in the case of Poland

open access: yes
Research background: Structural change and economic growth characterise any process of economic development and have relevant research background. However, the research on identification of a character of relationships between the phenomena are not ...
Cyrek, Magdalena
core   +1 more source

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