The influence of Al3+ions that had been solid dissolved in C-S-H on the amount of Na+ions adsorbed on C-S-H surface was studied. The experimental results show that the solid dissolution of Al3+ions in C-S-H structure makes the electronegative C-S-H surface increase electronegative amounts, that is the reason why the adsorption ability of C-S-H for Na+ions increase.
The single factor variance of viscosity experimental data of blast furnace slag was calculated by Minitab software. The influence of slag basicity and chemical compositions on the slag viscosity was obtained. The results show that there have insignificant effects on the slag viscosity when the slag basicity is over than 1.02, MgO content is less than 11.95% or TiO2 content is less than 12.57%. While the slag basicity can be influenced significantly with the slag basicity less than 1.02, MgO content over than 13.95% and TiO2 content over 13.57%. The Al2O3 content of the slag should be less than 12.75%.
Al doped ZnO thin films(AZO films) was prepared by sol-gel method. The influence of Parameters of different processes on the crystallization properties, micro-morphology and optical properties of this kind of films were studied, using by X-ray diffractometer, filed emission stereoscan, spectral photometer, hall admeasuring apparatus. The results indicated that the crystallization properties, micro-morphology and optical properties of Al doped ZnO films were best on the condition that the sol density was 0.5mol/L, hat treatment temperature is 600 and there is a 8-layer coating.
The paper regard pillaring agent which is the most important research content of pillared-montmorillonite as subject investigated. By changing the pH value of solution to form different pillaring agent which is used to prepare pillared-montmorillonite. Adsorption capacity of pillared-montmorillonite on SO42-ion as standards, the effection of main process factors—pH value during the preparation of the pillaring agent on adsorption capacity of pillared-montmorillonite is explored.
The analysis algorithm of parallel factor, combined with fluorescence spectroscopy of three dimensions are used to study the organics identification in petroleum for impurities in surface water and concentration measurement, analysizing the effects on measurement of the coexist of multi-component petroleum pollutants. Treating gasoline, kerosene and diesel as samples, through a mixed solution of a variety of different proportions to imitate the state of coexistence of a variety of petroleum organic, studying PARAFAC in a variety of characteristics of the mixed solution component. Experiment focused on the Steam diesel hybrid solution, Wood kerosene mixed solution and Steam wood kerosene mixed solution, and it can separate their different fluorescence spectrums from the complex mixed composition of three dimensional fluorescence spectrum data matrix. It realized the simultaneous measurement for the main factor in composite samples. And it also calculates the average error rate of concentration .The result indicates that PARAFAC can realize petroleum pollutants composite sample identification and concentration measurement.
This thesis discusses the development of Earned Value and introduces the concept of that value and the related indicators. The paper cites real applications and situations in which the method is adopted, analyzes the advantages and disadvantages of method, with the aim to explain its suitability in the management, and to offer suggestions as to the wide use of the method in project management.
According to difference absorption spectrum mixed gas absorption spectrum in technology overlapping problem, a DOAS technology based on the PSO and LS-SVM fusion method was proposed. First, SO2, NO respectively to construct a quantitative analysis model by LS-SVM, And then, using PSO is strong optimization ability of least square support vector machine (SVM) the optimization of the parameters of the algorithm, and then, LS-SVMs parameter are optimized with PSO of the powerful searching ability, Finally, rebuilt the quantitative analysis model. Experiments show that using the improved DOAS method is feasible in solving the mixed gas spectrum overlap problem which has certain practical significance.
The mechanics mechanism of bolt reinforcement of joint fissure test pieces were discussed with the method of variable angle plate indoor model experiment and the deformation of bolt control of jointed slope were analyzed by numerical simulation. The results show that: the bolt reinforcement can improve not only the integrity of joint fissure rock mass, but also be a very good control of deformation of jointed slope. It establishes the foundation on the quantitative for evaluation of joint fissure rock mass deformation and stability.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.