Research on 3D Simulation Method of Nearshore Storm Surge Based on FLIP

This paper proposes a FLIP-based three-dimensional storm surge simulation method. Based on the Fluid Implicit Particle (FLIP) method, the flow field is calculated by FLIP fluid, and finally through the standard coloring based on PBR in the Unity engine. The device renders the fluid state model generated at each moment. The experimental results show that the method in this paper not only meets the realistic requirements of nearshore storm surge simulation, but also effectively improves the efficiency of scene rendering. The result can be used not only in game production and movie special effects, but also in engineering simulations such as ocean engineering and environmental engineering, and has a wide range of application prospects and application values.

Varieties of Arbitrary Governance

This chapter uses sub-national variation to probe alternative explanations for arbitrary governance. Evidence from three additional research sites in Uganda—Mbarara, Moroto, and Soroti—shows that violent conflict and political leanings shape how institutionalized arbitrariness manifests, exaggerating certain components and attenuating others. Such differences result in ‘varieties’ of institutionalized arbitrariness that, taken together, bolster and nuance the argument that arbitrary governance is a distinct type of authoritarian rule. The results are presented in a typology of four varieties of institutionalized arbitrariness, each corresponding to a different study location. The typology illustrates some of the different outcomes produced by changing combinations of state violence, fluid state jurisdiction, unpredictable state presence, and institutional fragmentation. The chapter then uses these variations to examine some limitations of the theory, including questions about the regime’s intent and citizens’ agency.

Claiming Jurisdiction

This chapter studies how Uganda’s vigilantes seek—and fail—to consolidate authority over local communities. In contrast to scholarship that depicts the ambiguous space between state and society as a fertile environment for the emergence of new public authorities like vigilantes, this chapter shows how state actors’ unpredictable assertions and denials of authority make jurisdictions fluid, forestalling the emergence of new public authorities. Jurisdictional fluidity is reflected in routine inconsistency about what places, times, people, and activities fall under the authority of a given actor. The space between state and society is fragile and inhospitable to the emergence of new authorities. Local vigilante groups seek to consolidate power by adopting symbols and practices of state authority. A case study of the rise and fall of one vigilante group highlights how fluid state jurisdictional claims destabilize the political playing field for those seeking to consolidate power autonomously from the state.

Is Organizational Cynicism Positively Related To Attitude Towards Unethical Workplace Behavior?

Cynicism is conventionally thought of as a fixed attitude or personality trait characterized by skepticism and a general lack of trust in others. The concept of organizational cynicism was introduced in the early 1990s, when scholars argued that cynicism can be a fluid state and thus can be learned and unlearned based on beliefs, behaviors and affects. The purpose of this study is twofold: 1) to determine whether a positive relationship exists between organizational cynicism and self-reported attitudes towards unethical workplace behavior; and 2) to determine whether exposure to positive or negative organizational information in the form of short articles and sentences would moderate the effects of the aforementioned variables. Results from the study have demonstrated no relationships between the two variables, even taking into account the moderators, with results in p values reaching neither the .05 nor .01 levels. Both hypotheses are thus not supported.

Is Organizational Cynicism Positively Related To Attitude Towards Unethical Workplace Behavior?

Cynicism is conventionally thought of as a fixed attitude or personality trait characterized by skepticism and a general lack of trust in others. The concept of organizational cynicism was introduced in the early 1990s, when scholars argued that cynicism can be a fluid state and thus can be learned and unlearned based on beliefs, behaviors and affects. The purpose of this study is twofold: 1) to determine whether a positive relationship exists between organizational cynicism and self-reported attitudes towards unethical workplace behavior; and 2) to determine whether exposure to positive or negative organizational information in the form of short articles and sentences would moderate the effects of the aforementioned variables. Results from the study have demonstrated no relationships between the two variables, even taking into account the moderators, with results in p values reaching neither the .05 nor .01 levels. Both hypotheses are thus not supported.

Research of Hardness of Polymer Composite Materials Based on Silicone and Aluminium Hydroxide with Various Mechanical-Chemical Processing

Polymer composites are one of the types of modern functional materials. This class includes many different in structure and field of application materials, including dispersed-filled polymer composites [1]. Such materials are made by mixing a polymer matrix in a fluid state with a powder filler and then curing. The properties of the resulting materials are influenced by a variety of factors, including the nature of the preliminary (prior to addition to the mixture with the polymer) mechanical-chemical processing of the filler.

A minimal model for structure, dynamics, and tension of monolayered cell colonies

The motion of cells in tissues is an ubiquitous phenomenon. In particular, in monolayered cell colonies in vitro, pronounced collective behavior with swirl-like motion has been observed deep within a cell colony, while at the same time, the colony remains cohesive, with not a single cell escaping at the edge. Thus, the colony displays liquid-like properties inside, in coexistence with a cell-free “vacuum” outside. We propose an active Brownian particle model with attraction, in which the interaction potential has a broad minimum to give particles enough wiggling space to be collectively in the fluid state. We demonstrate that for moderate propulsion, this model can generate the fluid-vacuum coexistence described above. In addition, the combination of the fluid nature of the colony with cohesion leads to preferred orientation of the cell polarity, pointing outward, at the edge, which in turn gives rise to a tensile stress in the colony—as observed experimentally for epithelial sheets. For stronger propulsion, collective detachment of cell clusters is predicted. Further addition of an alignment preference of cell polarity and velocity direction results in enhanced coordinated, swirl-like motion, increased tensile stress and cell-cluster detachment.

Effect of Underwater Insertion on Intracochlear Pressure

Background: The importance of intracochlear pressure during cochlear electrode insertion for the preservation of residual hearing has been widely discussed. Various aspects of pre-insertional, intra-insertional, and post-insertional relevant conditions affect intracochlear pressure. The fluid situation at the round window during electrode insertion has been shown to be an influential factor.Aims/Objectives: The aim of the study was to compare various insertion techniques in terms of the fluid situation at the round window.Material and Methods: We performed insertion of cochlear implant electrodes in a curled artificial cochlear model. We placed and fixed the pressure sensor at the tip of the cochlea. In parallel to the insertions, we evaluated the maximum amplitude of intracochlear pressure under four different fluid conditions at the round window: (1) hyaluronic acid; (2) moisturized electrode, dry middle ear; (3) middle ear filled with fluid (underwater); and (4) moisturized electrode, wet middle ear, indirectly inserted.Results: We observed that the insertional intracochlear pressure is dependent on the fluid situation in front of the round window. The lowest amplitude changes were observed for the moisturized electrode indirectly inserted in a wet middle ear (0.13 mmHg ± 0.07), and the highest values were observed for insertion through hyaluronic acid in front of the round window (0.64 mmHg ± 0.31).Conclusions: The fluid state in front of the round window influences the intracochlear pressure value during cochlear implant electrode insertion in our model. Indirect insertion of a moisturized electrode through a wet middle ear experimentally generated the lowest pressure values. Hyaluronic acid in front of the round window leads to high intracochlear pressure in our non-validated artificial model.