4,5-Diaza-9H-fluoren-9-imine

In the title compound, C11H7N3, the diaza­fluorene rings are almost coplanar with an r.m.s. deviation of 0.0160 Å. In the crystal structure, C—H⋯N hydrogen bonds link mol­ecules into sheets parallel to the ab plane. Mol­ecules are also stacked regularly along the c axis by a variety of π–π inter­actions with centroid–centroid distances in the range 3.527 (2)–3.908 (2) Å

Homo (neo)religiosus

Fotoesej

Leader’s Machiavellianism and employees’ counterproductive work behavior: testing a moderated mediation model

Counterproductive work behavior wastes organizational resources and significantly damages organizational development. The importance of employees’ counterproductive work behaviors in organizations is becoming increasingly obvious. This is directly related to the sustainable development and survival of organizations. This study believes that employee’s behavior is closely related to leadership style. In particular, employees’ in small- and medium-sized enterprises are often manipulated and deceived by leaders, resulting in dissatisfaction and counterproductive work behavior. In order to address this behavior, this study collected survey data from 289 employees from Chinese SMEs to explore the relationship between perceived abusive supervision and organizational political behavior in Machiavellian leadership and counterproductive work behavior. The results suggest that Machiavellian positive influence counterproductive work behavior through a mediating role of perceived abusive supervision. Furthermore, leader organizational political behavior moderates the indirect effect of perceived abusive supervision such that the effect is stronger when leader organizational political behavior is high. This study aimed to identify the variables that increase employees counterproductive work behavior, propose recommendations for reducing employees’ counterproductive work behavior, expanded the scope of counterproductive work behavior research, and provided a theoretical basis for related studies

Influence of Structure Parameters of Flux Diverters on Performance of Superconducting Energy Storage Coil

This article studies the influence of flux diverters (FDs) on energy storage magnets using high-temperature superconducting (HTS) coils. Based on the simulation calculation of the H equation finite-element model, FDs are placed at both ends of HTS coils, and the position and structure are optimized. The impact of the diverter structural parameters on the energy storage of the HTS energy storage magnet is explored, and an optimized diverter structure is designed. The rectangle is the most basic structure of FDs, so this article first optimizes the structure of the rectangular FDs and then performs various slotting treatments on the optimized FDs. By comparison, it is concluded that the concave FDs have the best energy storage effect. Then, based on the optimization of the concave FDs, a Γ-shaped structure is obtained, further improving the magnet's energy storage effect. The conclusion of the influence factors can be applied to the optimization design of diverter structures and provide a new perspective for improving energy storage.</p