Reliability Of Experimental Method Research Articles

Everything hacked? What is the evidential value of the experimental public administration literature?

The rise of behavioral public administration provides new perspectives – especially from a psychological point of view – to understand public administration theories and the growing interest in using experiments to enhance the internal validity of empirical studies. However, psychology and other social sciences are undergoing a replication crisis where experimental results often do not replicate. One reason for the limited replicability is the publication bias sparked by journals’ preference for significant effects and the resulting incentive to create significant results. This study employs a meta-analytical approach to examine the evidential value of experimental evidence in public administration. It uses the p-curve method to test whether this body of research is dominated by selectively reporting significant results. The analysis includes 172 statistically significant findings published in top public administration journals and shows that the distribution of p values of these findings is right-skewed. Such a distribution indicates that the experimental public administration research contains evidential value, which means it is not solely the result of selective reporting of significant results. Although the analysis shows a good sign, we discuss important practices to further strengthen the validity and reliability of experimental methods in public administration.

Experimental study of free-surface jet impingement heat transfer with molten salt

An experimental study of free-surface jet impingement was carried out with compound molten salt to understand its characteristics of heat transfer. Based on pre-experimental verification on the reliability of experimental method by water as working fluid, a compound molten salt was chosen as a new working fluid to conduct experiment of free-surface jet impingement. The heat transfer of molten salt at stagnation point was investigated in detail, and the Nusselt number of molten salt increased with increasing of the Reynolds number and the Prandtl number, and was nearly constant with increasing of nozzle-to-plate spacing at present ranges. The data was correlated by an empirical formula, which was compared with those classical correlations from references. Next, the variation of the Nusselt number of molten salt was also verified along heated surface. It was shown that the local Nusselt number decreased monotonously with increasing of lateral distances from stagnation point, and increased with increasing of the Reynolds number. The profiles of the Nusselt number were nearly unchanged for different nozzle-to-plate spacing, which can be well correlated by a normalized formula. This work focused on the heat transfer characteristics of the molten salt in free-surface jet impingement, which may be recognized as a reference for promoting the application of molten salt in heat transfer process, especially in high temperature situations.

Liquid–Liquid Equilibria for the System Water + 1,3-Dichloro-2-propanol + Epichlorohydrin from (283.2 to 303.2) K

Liquid–liquid equilibrium data for the ternary system of water + 1,3-dichloro-2-propanol + epichlorohydrin were determined at the temperature of (283.15, 293.15, 303.15) K and atmosphere pressure. The reliability of experimental method was examined by the mass balance verification and the Othmer–Tobias equation. The experimental data were successfully correlated with both the NRTL model and UNIQUAC model, and the NRTL model presents more satisfactory result. These LLE data and model parameters obtained in this work are helpful for understanding, designing, and developing epichlorohydrin synthesis processes.

Texas A&M University Radiocarbon Dates II

The radiocarbon laboratory in the Oceanography Department at Texas A&M University was established primarily for the examination of seawater samples, although other types of samples have been run. Emphasis has been placed on seawater samples of the Gulf of Mexico and adjacent areas. Most of the samples examined have been inorganic carbon, but some organic-carbon samples are being run, mainly wood and charcoal whose ages have been determined previously. More samples of known age will be run as a further check on the reliability of experimental methods and procedures.

液体金属による鉄鋼材料の腐蝕に関する研究, (I)

The application of liquid metals to high temperature heat-transfer fluids has stimulated much development work on heat-transfer systems utilizing various low-melting and high boiling metals and alloys. The selection of container materials to resist the attack by liquid metals is a difficult problem. The general way of attack by liquid corrodant is direct alloying, solution attack, intergranular penetration, corrosion by contaminants and others. Microscopic examination of metallographically polished surface was adopted to investigate the attack of liquid metals on iron and steels in the present study. The reliability of experimental method, the effect of oxygen and the effect of stabilizer of oxygen were examined.