Results 81 to 90 of about 334,480 (303)

Grey Relational Analysis Based on the Joint Development of Regional Economy

open access: yesResearch Journal of Applied Sciences, Engineering and Technology, 2013
Based on the scholars' research at home and abroad, This study take comprehensive application of gray correlation analysis model and location entropy to analysis the economic relevance and the linkage between regional economic of the cities in Shandong Peninsula. We obtain the results of the economic linkage in different industries and different cities
Bing Zhang, Junhai Ma
openaire   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Application of KNN algorithm incorporating Gaussian functions in green and high-quality development of cities empowered by circular economy

open access: yesEnergy Informatics
A growing number of industries have started to adapt to the circular economy since the concept's introduction. Therefore, in order to accurately evaluate the development level of circular economy, the circular economy prediction model based on support ...
Zhezhou Li, Hexiang Huang
doaj   +1 more source

Afghanistan : revival and redevelopment [PDF]

open access: yes, 2008
Major redevelopment projects in Afghanistan are placing large demands on the minerals industry, which is struggling to keep pace.
Benham, Antony, Mitchell, Clive
core  

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

ELEMENTS OF COMPETITION AND AGRARIAN MARKET STRUCTURES IN SERBIA

open access: yesEkonomika Poljoprivrede (1979), 2009
One of the biggest problems of agriculture in Serbia is an institutionally undeveloped agricultural commodity market and inefficient resource allocation.
Milan R. Milanović   +2 more
doaj  

Excavating Future Challenges: An Analysis of Health Systems of One Hundred-Six Countries

open access: yesJournal of Business and Social Review in Emerging Economies, 2021
Purpose: Health system of a country is backbone of economy. It has fundamental importance in sustainable development of a country. Aim of this article is to excavate future challenges to health system of selected 106 countries.
Abdul Basit   +3 more
doaj  

EVALUATION OF GREEN GDP MEASUREMENT IN INDONESIA USING GREY SYSTEM APPROACH

open access: yesJournal of Indonesian Applied Economics, 2020
The objective of the research was to apply Grey System Theory Type GM (1,1) on the forecast and evaluation of Indonesia’s Green GDP accounting which mainly deals with systems that have limited data and asymmetric information.
Andistya Oktaning Listra   +1 more
doaj   +1 more source

Poland's enterprise environment - a Polish view [PDF]

open access: yes
The paper briefly presents environment for business in Poland as of the end of the year 2005. A few comments, however, on its evolution in the course of the transition period are also made.
Ewa Balcerowicz
core  

The influence of laser hardening on wear in the valve and valve seat contact [PDF]

open access: yes, 2009
In internal combustion engines it is important to manage the wear in the valve and valve seat contact in order to minimise emissions and maximise economy.
H. Taylor   +9 more
core   +1 more source

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