The magnetic characteristics of iron phthalocyanine thin films are studied with a vibrating sample magnetometer, identifying a ferromagnetic transition temperature at 4.5 K. The metal ions at the center of the molecule are self-assembled along chains producing quasi one-dimensional magnetic chains of variable length in the thin films. The average chain length is varied from 20 to 300 nm via substrate temperature during deposition. Below the critical transition temperature, the magnetization curves have the shape of wasp-waisted or constricted loops. The inplane chain length modulates the coercivity and saturation field and larger grains increase the coercivity significantly. First-order reversal curves of the wasp-waisted hysteresis loops reveal a long narrow strip that suggests a broad distribution of coercive fields and weak intergrain magnetic interactions. These findings are also supported through simulations based on the Preisach model.
Labeling a real network dataset is specially expensive in computer security, as an expert has to ponder several factors before assigning each label. This paper describes an interactive intelligent system to support the task of identifying hostile behaviors in network logs. The RiskID application uses visualizations to graphically encode features of network connections and promote visual comparison. In the background, two algorithms are used to actively organize connections and predict potential labels: a recommendation algorithm and a semi-supervised learning strategy. These algorithms together with interactive adaptions to the user interface constitute a behavior recommendation. A study is carried out to analyze how the algorithms for recommendation and prediction influence the workflow of labeling a dataset. The results of a study with 16 participants indicate that the behaviour recommendation significantly improves the quality of labels. Analyzing interaction patterns, we identify a more intuitive workflow used when behaviour recommendation is available.
Triangular charts are widely used for plotting properties of three-component systems as a function of composition. The property of equilateral triangles
L o a m T m a c triangular charts' may be used tu advantage for plotting equations of the general form XA.YB.ZC = a constant other than zero (1) where the exponents A, B, and C may be any real numbers, positive or negative. Expressions of this form are frequently met with in the study of chemical reaction equilibria. The application of logarithmic tr~angular plotting to t.he ionization equilibrium of the weak acid, acetic acid, in water solution is shown in the figure. For this acid, the ionization equilibrium reaction may be written or, ignoring the hydration of the proton The expression for the ionization constant of acetic acid is usually written in the form [H+l[CnHsO'-l = 1.80 X 10-5 (at 25' C.) [HC~HZO~ (4'
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations鈥揷itations 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.