scholarly journals Systematic evaluation of different types of graphene oxide in respect to variations in their in-plane modulus

Carbon ◽  
2017 ◽  
Vol 114 ◽  
pp. 700-705 ◽  
Author(s):  
Patrick Feicht ◽  
Renée Siegel ◽  
Herbert Thurn ◽  
Jens W. Neubauer ◽  
Maximilian Seuss ◽  
...  
1986 ◽  
Vol 18 (4-5) ◽  
pp. 15-26 ◽  
Author(s):  
D. A. Segar ◽  
E. Stamman

Most historical marine pollution monitoring has proven useless in a management context. A strategy for development of effective marine pollution monitoring programs is outlined. This strategy is based on the following steps: 1) systematic evaluation of the management information needs, 2) identification of the hypothetical impacts associated with those management concerns, and 3) investigation of the feasibility of monitoring those effects such that the existence, or absence, of a specified level of effects can be established in a statistically-valid manner. There are two fundamentally different types of monitoring program: site-specific and regional. These two types of program differ markedly in scope and approach when designed through application of this strategy. The strategy requires development of null hypotheses which address management concerns and which are amenable to scientific testing. In order for the program to be successful, the null hypotheses selected for inclusion in a marine pollution monitoring program must address levels of effect which are predefined to be environmentally significant. The definition of environmentally significant effect levels is a difficult process which must be primarily the responsibility of the managerial community.


2020 ◽  
Vol 34 (8) ◽  
Author(s):  
Syed Farooq Adil ◽  
Mohamed E. Assal ◽  
Mohammed Rafi Shaik ◽  
Mufsir Kuniyil ◽  
Azhar Hashmi ◽  
...  

Polymers ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 1984
Author(s):  
Chun Yan Gao ◽  
Min Hwan Kim ◽  
Hyoung-Joon Jin ◽  
Hyoung Jin Choi

Conducting graphene oxide/polydiphenylamine (GO/PDPA) microsheet nanocomposite particles were fabricated via in-situ oxidative polymerization using diphenylamine in the presence of GO. The morphological structures and dimensions of the fabricated GO/PDPA composites were evaluated using transmission electron microscopy and scanning electron microscopy. Electrorheological (ER) responses and creep behaviors of an ER fluid consisting of the GO/PDPA composites when suspended in silicone oil were evaluated using a rotational rheometer under input electric field. Three different types of yield stresses were examined along with dielectric analysis, demonstrating their actively tunable ER behaviors.


2018 ◽  
Vol 20 (4) ◽  
pp. 2320-2329 ◽  
Author(s):  
Rustem R. Amirov ◽  
Julia Shayimova ◽  
Zarina Nasirova ◽  
Alexander Solodov ◽  
Ayrat M. Dimiev

GO contains two different types of binding sites, bonding to which results either in high or low NMR relaxivity of resulted Gd3+–GO and Mn2+–GO solutions.


2022 ◽  
Author(s):  
Yi Wang ◽  
Zhuanying Miao

Abstract The increasing drift of urbanization and its impact on urban human settlements are of major concern for China cities. Therefore, demystifying the spatial-temporal patterns, regional types and affecting factors of urban livability in China are beneficial to urban planning and policy making regarding the construction of livable cities. In accordance with its connotation and denotation, this study develops a systematic evaluation and analysis framework for urban livability. Drawing on the panel data of 40 major cities in China from 2005 to 2019, an empirical research was further conducted. The results show that urban livability in China has exhibited a rising trend during the period, but this differs across dimensions. The levels of urban security and environmental health are lower than those of the three other dimensions. Spatially, cities with higher livability are mainly distributed in the first quadrant divided by the Hu Line and Bole-Taipei Line. Cities in the third quadrant are equipped with the lowest livability. In addition, the 40 major cities can be divided into five categories, and obvious differences exist in terms of the geographical distribution, overall livability level and sub-dimensional characteristics of the different types. Furthermore, the results of the System GMM estimator indicate that the overall economic development exerts an inhibiting effect on the improvement of urban livability in present-day China, but this logical effect exhibits obvious heterogeneity in different time periods and diverse city scales. Finally, there are also differences in the influencing direction and degree of specific economic determinants.


Sign in / Sign up

Export Citation Format

Share Document