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This paper presents a generic framework on port logistics development and its interaction with hinterland regions. Although earlier work on the topic (e.g. by Ferrari et al., 2006; Kuipers and Eenhuizen, 2004) offers valuable insights in the subject, it contains limitations in geographical applicability. Ports indeed face dissimilarities in, for instance, locational characteristics (a.o. distance from the sea and nautical accessibility) and hinterland connections. Only when a model for determining seaport-located logistics activities takes into account these issues of dissimilarity among ports, the framework could be applied to a variety of seaport ranges worldwide. In this paper we aim to provide a first version of such a framework. More particularly, by means of a survey conducted in the Port of Busan the shortcomings of traditional approaches are illustrated. We then propose a more encompassing model, which seems to explain fairly well the attractiveness of Busan in terms of logistics activities. This framework explicitly adds port and hinterland characteristics to the list of factors decisive in the choice of the location of logistics activities. Finally, we would like to remark that our research on this topic is still ongoing and results for surveys planned in New York and Antwerp will be reported in a later stage.

In Laser Power Bed Fusion (LPBF), the process and operating parameters influence the mechanical and geometrical characteristics of the manufactured parts. Therefore, the optimization and control of these parameters are mandatory to improve the quality of the produced parts. During manufacturing, the process parameters are usually constant whatever the part size or the built layer. With such settings, the manufacturing process may lead to an inhomogeneous thermal behavior and locally overheating areas, impacting the part quality. The aim of this study is to take advantage of an analytical thermal model to modulate the laser power upstream of manufacturing.

The approach takes place in two steps: the first step consists in calculating the preheating temperature at the considered point and the second one determines the power modulation of the laser to reach the desired temperature at this point.

Numerical investigations on several use cases show the effectiveness of the method to control the overheated areas and to homogenize the simulated temperature distribution.

The specificity of this model lies in its ability to directly calculate the amount of energy to be supplied without any iterative calculation. Furthermore, to be as close as possible to the technology used on LPBF machines, the kinematic behavior of the scanning head and the laser response time are also integrated into the calculation.

This paper aims to propose an analytical thermal three-dimensional model that allows an efficient evaluation of the thermal effect of the laser-scanning path. During manufacturing by laser powder bed fusion (LPBF), the laser-scanning path influences the thermo-mechanical behavior of parts. Therefore, it is necessary to validate the path generation considering the thermal behavior induced by this process to improve the quality of parts.

The proposed model, based on the effect of successive thermal flashes along the scanning path, is calibrated and validated by comparison with thermal results obtained by FEM software and experimental measurements. A numerical investigation is performed to compare different scanning path strategies on the Ti6Al4V material with different stimulation parameters.

The simulation results confirm the effectiveness of the approach to simulate the thermal field to validate the scanning strategy. It suggests a change in the scale of simulation thanks to high-performance computing resources.

The flash-based approach is designed to ensure the quality of the simulated thermal field while minimizing the computational cost.

The purpose of this paper is to explore the underlying influence of destructive leadership on hindrance stress and compulsory organizational citizenship behavior (CCB) by developing a moderated mediation model, which examines the mediating role of hindrance stress and the moderating role of supervisor–subordinate guanxi.

By using 324 samples collected from multiple companies in southeast China, the model is tested through multiple linear hierarchical regressions, correlation analysis, confirmatory factor analysis and PROCESS bootstrapping program in SPSS and AMOS software.

Results reveal that hindrance stress fully mediates the relationship between destructive leadership and CCB, and supervisor–subordinate guanxi moderates the strength of the indirect effect between destructive leadership and CCB (via hindrance stress), so that the mediated relationship is stronger when supervisor–subordinate guanxi is low rather than high.

The study contributes to display the influence path and contingency mechanism of destructive leadership as a stressor on employees’ negative behavior in the workplace. The moderated mediation model results not only develop the research on the relationship between negative leadership and employee behavior in terms of leadership effectiveness but also provide a new viewpoint to explore the relationship between leadership and employee behavior.

This study aims to investigate additive manufacturing of nickel-based superalloy IN718 made by powder bed fusion processes: powder bed fusion laser beam (PBF-LB) and powder bed fusion electron beam (PBF-EB).

This work has focused on the influence of building methods and post-fabrication processes on the final part properties, including microstructure, surface quality, residual stresses and mechanical properties.

PBF-LB produced a much smoother surface. Blasting and shot peening (SP) reduced the roughness even more but did not affect the PBF-EB surface finish as much. As-printed PBF-EB parts have low residual stresses in all directions, whereas it was much higher for PBF-LB. However, heat treatment removed the stresses and SP created compressive stresses for samples from both PBF processes. The standard Arcam process parameter for PBF-EB for IN718 is not fully optimized, which leads to porosity and inferior mechanical properties. However, impact toughness after hot isostatic pressing was surprisingly high.

The two processes gave different results and also responses to post-treatments, which could be of advantage or disadvantage for different applications. Suggestions for improving the properties of parts produced by each method are presented.

A lot of recent research has been focused on developing network mobility management to support the movement of a mobile network consisting of several mobile nodes. The IETF NEMO working group proposed the NEMO basic support protocol that defines a methodology for supporting such network mobility using bi‐directional tunneling between the home agent and the mobile router. However, this protocol has been found to suffer from the so‐called ‘dog‐leg problem’, and despite alternative research efforts to solve this problem, there are still limitations in the efficiency of real time data transmission and intra‐domain communication. Accordingly, the current paper proposes a new route optimization methodology that uses unidirectional tunneling and a tree‐based intra‐domain routing mechanism. As such, the proposed scheme can provide faster signaling and data transmission and be easily extended to support micro‐mobility without any additional extensions. The performance of the proposed scheme is also evaluated to demonstrate its efficiency.

This research uses rational choice theory to analyze the effects of motivation, premeditation and offender characteristics on offenders' weapons during decision-making processes when they are violent towards on-duty police officers. The paper aims to discuss the aforementioned issues.

The researchers examined 597 cases (n = 597) of violence against the police in the China Judgments Online (CJO) database, and analyzed the data using multinomial logistic regression methods. Rational choice theory was used to explore the offenders' weapons decision-making process.

The research results showed that offenders with premeditation were more likely to use a weapon, and tended to choose sharp weapons; offenders motivated to “escape arrest” were more likely to use a weapon, and tended to choose a vehicle as a weapon; and offenders motivated by “conflict resolution” were more likely to choose a sharp or blunt weapon.

These findings have limited applicability to other countries and must be considered in the local background of violence against police.

Through the rational choice theory analytical framework, this study clarifies how motivation and premeditation influence offenders' weapons decision-making processes.

Also, this study may provide support for frontline police officers' law enforcement.

The research identified some specific connections between offenders' weapon choice preferences, their motivation for the violence and whether or not there was premeditation. The findings provide guidance for police agencies developing preventive policies, and for frontline officers in interpreting and managing the situations they face.

WITH the passing of Easier the British librarian enters upon summer arrangements and a new financial year at the same time. There have been no severe complaints of undue financial “cutting” from public librarians; but there has been no very lusty jubilation caused by undue amplitude in appropriations. We may be grateful that in the general Stringency matters are not worse than they are. Our time will come. As for the summer work of libraries: of late there has been a tendency for the issues, during what are usually thought to be the slacker months, to approximate to those of winter time. This is not wholly, or even largely, due to the organization of holiday literature exhibitions and similar “added” activities, but it appears to be the result of increased reading habit. At the same time it must be remembered that last summer was not an out‐door one.

Explore what popular food influencers among Flemish emerging adults portray in their Instagram recipe posts in terms of (1) references to food literacy, (2) nutritional value, (3) rational and emotional appeals and (4) the relation between the nutritional value and rational/emotional appeals.

A content and nutritional analysis of Instagram recipe posts from seven food influencers (N = 166).

Findings reveal that food influencers rarely embed references to food literacy in their recipe posts, especially regarding meal planning, food selection, meal consumption and evaluating food-related information. Only in 28.9% of the posts information was given on how to prepare a recipe. Second, 220 recipes were included in the 166 recipe posts, of which the majority (65%) were main course meals that met at least six of the 11 nutrient criteria for a healthy main meal (67.2%). Finally, food influencers promote their recipe posts as positive narratives, focusing on the tastiness (66%) and convenience (40.9%) of meals.

This is the first study to evaluate what food influencers post nutritionally in their Instagram recipes, as well as how they promote these recipes. Health promotors should note the influential role of food influencers and seek ways to collaborate to provide information on how food literacy cues can be embedded in influencers' communications and provide insights into how influencers' recipes can be optimised.