Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《腐蚀科学与防护技术》
Abstract： The natural salt spray (NSS) induced corrosion of pure copper was investigated by weight loss measurement. The correlation of the indoor accelerated corrosion and the outdoor exposure was studied with Grey correlation method. The results show that the corrosion kinetics of pure copper in the two environments follows the exponential function. The corrosion kinetics of the indoor accelerated test does not agree with those in rural environment with low pollutants, however, it presents better relativity with those acquired from the marine and industrial atmospheres. Then a prediction model for the corrosion of outdoor exposure of pure copper in various atmospheres was established by Grey correlation method.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《腐蚀科学与防护技术》
Abstract： A treatment process with a complex liquor containing phosphoric and tannic acid was used to pre-treat rusted structural steel so that to enhance the adhesion of applied organic coatings on the rusted structural steel. Adhesion test results showed that this treatment process enhanced the adhesion obviously of several organic coatings (epoxy, acrylic and fluorocarbon coatings) on the pre-treated rusted structural steel, therewith the adhesion of coatings could meet the requirements cited in the relevant coating standards for actual application. Further analysis revealed that the enhancement in adhesion might be attributed to the formation of a conversion film consisted of a dense inner potion and a micro-cracked outer portion instead of the original porous rust scale.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《材料研究学报》
Abstract： The effect of nanocrystallization on the adsorption of Cl- on Fe20Cr alloy in [Cl-] =0.1 mol/L borate buffer solution was investigated by means of X-ray photoelectron spectrum(XPS) and calculations per the first-principles. The results show that the influence of Cr on Cl- adsorption behavior could be described as the following two aspects : the one, in view of the calculation per the first-principles, is that the adsorption energy decrease with the increasing Cr content at the interface of passive film/alloy, which is conducive to the adsorption of Cl-; the other is that the Cr enrichment may also facilitate the formation of passivation film, which inhibit the Cl- adsorption. Nanocrystallization may enhance the diffusivity of Cr, which leads to the enrichment of Cr within the passive fil as well as at the interface of passive film/alloy. Thus, nanocrystallization can inhibit the adsorption and the inward migration of Cl- , and finally enhance the corrosion resistance of the alloy.
Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： During the recent decade, quantum decision-making models were established based on the mathematical structure and methodologies of quantum mechanics. Owing to its unique theoretical structure, the quantum decision-making models can be applied to explain problems that violate the classical decision models, especially for judgments under uncertainty and decisions under conflicts. Quantum decision-making models have been used to explain phenomena such as disjunction effect, conjunction fallacy and interference of categorization on decision making which are difficult to account for with classical decision models. A model called quantum question equality has been tested for its accurate prediction of order effects. Being a new research field contributing to analysis of decision making, quantum decision-making models worth further investigations both in theoretical and applicative levels.
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-18 Cooperative journals: 《材料研究学报》
Abstract： The corrosion behavior of pure copper in simulated acid rain of different pH was investigated by using electrochemistry impedance spectroscopy (EIS) and X- ray photoelectron spectroscopy (XPS) as well as SEM. The results show that the impedances of pure copper in simulated acid rain of different pH present various characteristic, indicating the different corrosion mechanisms. The results of XPS show that cuprous oxide only form on the surface of pure copper in pH=3 solution and cupric oxide only exist in pH=5 solution as well as the mixture of both oxides appear in pH=6 solution. The diffusion of O2 and H+ through solution may influence the corrosion process of pure copper. In low pH solution, the diffusion of dissolved oxygen through double electric layer is the rate-controlling step due to the promotion of the hydrogen ion. With increase of pH value, the oxygen of depolarization effect mainly control the corrosion process of pure copper without the effect of hydrogen ion.
Subjects: Nursing >> Nursing submitted time 2022-12-05
Abstract： Based on the literature review and analysis, this article elaborated the research background, the current situation and results of Traditional Chinese Medicine in the treatment of periodontitis, so as to explore the application prospect of TCM in the treatment of periodontitis.
Peer Review Status:
Awaiting Review
Subjects: Psychology >> Other Disciplines of Psychology submitted time 2019-01-08
Abstract： One of the most puzzling findings in decision research field is the disjunction effect. Several studies demonstrate that the disjunction effect exists in a two-person prisoner’s dilemma game. This effect violates the sure-thing principle and cannot be explained by classical decision-making models. During the recent decade, quantum decision making models have been established on the basis of the mathematical structure and methodologies of quantum mechanics. Owing to their special theoretical structures, quantum decision-making models are well suited for explaining the disjunction effect, although these models continue to encounter difficulties. This study aims to overcome the difficulties in existing quantum decision-making models by developing a modified model. To achieve this goal, the deficiencies of the previous models were analyzed. We concluded three deficiencies: 1) Although previous quantum decision-making models can account for the disjunction effect, they can also obtain findings that defy the experimental results and common sense. 2) They cannot explain the disjunction effect with large values in certain experiments (e.g., the experiment of Shafir & Tversky, 1992). 3) They cannot properly illustrate the relationship between the utility of decision maker’s pay off and the scale of the disjunction effect. The reasons for these difficulties were investigated. An important reason is that previous quantum decision-making models ignore that the decision maker may consider another’s pay off based on different decision conditions. Another reason is the over-simplicity of the utility function. With the above analyses as basis, we adopted the equate-to-differentiate method to rebuild the quantum decision-making model. In this new model, whether the decision maker considers another’s pay off or not based on a specific decision condition is determined with the equate-to-differentiate method. In addition, the utility function is redefined by value function and hyperbolic tangent transformation. Results revealed that the new quantum decision-making model overcomes the difficulties in previous quantum decision-making models. The proposed model is an integration of heuristic and computational or mathematical models. This ideal model integration deserves much attention and has good theoretical significance and application prospects. "
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