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This paper aims to automatically obtain the implant parameter from the CBCT images to improve the outcome of implant planning.

This paper proposes automatic simulated dental implant positioning on CBCT images, which can significantly improve the efficiency of implant planning. The authors introduce the fusion point calculation method for the missing tooth's long axis and root axis based on the dental arch line used to obtain the optimal fusion position. In addition, the authors proposed a semi-interactive visualization method of implant parameters that be automatically simulated by the authors' method. If the plan does not meet the doctor's requirements, the final implant plan can be fine-tuned to achieve the optimal effect.

A series of experimental results show that the method proposed in this paper greatly improves the feasibility and accuracy of the implant planning scheme, and the visualization method of planting parameters improves the planning efficiency and the friendliness of system use.

The proposed method can be applied to dental implant planning software to improve the communication efficiency between doctors, patients and technicians.

This paper aims to explore the transformation process and transformation mechanism of carbon steel under the marine environment.

In this paper, the transformation and rust layers corrosion products on 0Cu2Cr carbon steel with different cycles coupon test was investigated and deeply explored by scanning electron microscope, energy dispersive spectrometer, X-ray diffraction.

The results showed that the thickness of rust layers grew from 71.83 µm to 533.7 µm with increasing duration of corrosion. The initial corrosion product was γ-FeOOH, then part of the γ-FeOOH continued growing, and under the capillary action, the other part of the γ-FeOOH transformed to α-FeOOH.

To the best of the authors’ knowledge, this paper puts forward for the first time a new viewpoint of the development of corrosion products of low-carbon steel in two ways. This discovery provides a new idea for the future development of steel for marine engineering.

The purpose of this paper is to put forward a completely new academic library service mode called “Innovation community” in light of current information environment, social background and user demands. “Innovation community” is a mode especially suitable for academic libraries, aimed at supporting the cultivation of innovation ability, encouraging user participation, joint construction, interaction and communication, designing different theme communities and organizing supporting services and activities so that both libraries and users can become entities of independent innovation. At the same time, this paper seeks to elaborate on the development of ideas on constructing this new mode of “Innovation community” by taking the IC² mode and its auxiliary innovation support plan put forward by Shanghai Jiaotong University Library as a practice case.

The paper adopts the research methodology that combines situation analysis and theoretical explanation, model exhibition and case study.

It is found that “Innovation community” is a kind of library service mode especially suitable for learning and research groups with a demand for innovation. Under an e‐science and e‐education environment, libraries construct an environment and platform for promoting communication and cooperation and supporting interdisciplinary study and research innovation, and more effectively promoting knowledge discovery, research innovation and exploitation of tacit knowledge through individualized design and service of theme communities.

IC²@SJTUL, the practice case of “Innovation community”, has only constructed an environment at present, and the first term of this plan has not been completed. Therefore, evaluation of the actual operation effect cannot be made until later, and its actual effect has to be tested after a period of operation.

From a new perspective, this paper elaborates on the intention, elements and primary characteristics of “Innovation community” and studies a typical practice case.

This study explored the mathematical dispositions of Hong Kong mathematics pre-service teachers (PSTs). It also constructed a mathematical disposition framework comprising their affective, cognitive and functional dispositions towards the subject.

Thirty-one participants completed three structured metaphor tasks and one open-ended metaphor task in which they shared their views on mathematics. Responses were examined qualitatively and quantitatively. Coding based on thematic analysis was utilized to summarize the specific contents of the mathematical dispositions expressed by the PSTs, and a 5-level scoring scale was employed to evaluate the strength of the dispositions as represented by different metaphor types.

The findings suggest that the mathematical dispositions of pre-service mathematics teachers were generally positive. However, the overall level was not high. The most prevalent metaphors used to describe mathematics were “rice”, “blue” and “dog”.

Hong Kong mathematics PSTs' mathematical dispositions are examined by using metaphorical tasks. Three categories are identified: affective, cognitive and functional dispositions towards mathematics.

This study has proposed an original framework for describing mathematical disposition.

The purpose of this paper is to design a smart handheld device with force regulating function, which demonstrates the concept of patient-specialized tools.

This handheld device integrates an electrical bioimpedance (EBI) sensor for tissue measurement and a constant force regulation mechanism for ensuring stable tool–tissue contact. Particular focuses in this study are on the design of the constant force regulation mechanism whose design process is through genetic algorithm optimization and finite element simulation. In addition, the output force can be changed to the desired value by adjusting the cross-sectional area of the generated spring.

The following two specific applications based on ex vivo tissues are used for evaluating the designed device. One is in terms of safety of interaction with delicate tissue while the other is for compensating involuntary tissue motion. The results of both examples show that the handheld device is able to provide an output force with a small standard deviation.

In this paper, a handheld device with force regulation mechanism is designed for specific patients based on the genetic algorithm optimization and finite element simulation. The device can maintain a steady and safe interaction force during the EBI measurement on fragile tissues or moving tissues, to improve the sensing accuracy and to avoid tissue damage. Such functions of the proposed device are evaluated through a series of experiments and the device is demonstrated to be effective.

The purpose of this paper is to design a model-based bilateral teleoperation method to improve the feedback force and velocity/position tracking for robotic-assisted tasks (such as palpation, etc.) under constant and/or varying time delay with environment dynamic property. Time delay existing in bilateral teleoperation easily destabilizes the system. Proper control strategies are able to make the system stable, but at the cost of compromised performance. Model-based bilateral teleoperation is designed to achieve enhanced performance of this time-delayed system, but an accurate model is required.

Viscoelastic model has been used to describe the robot tool-soft tissue interaction behavior. Kevin-Boltzmann (K-B) model is selected to model the soft tissue behavior due to its good accuracy, transient and linearity properties among several viscoelastic models. In this work, the K-B model is designed at the master side to generate a virtual environment of remote robotic tool-soft tissue interaction. In order to obtain improved performance, a self perturbing recursive least square (SPRLS) algorithm is developed to on-line update the necessary parameters of the environment with varying dynamics.

With fast and optimal on-line estimation of primary parameters of the K-B model, the reflected force of the model-based bilateral teleoperation at the master side is improved as well as the position/velocity tracking performance. This model-based design in the bilateral teleoperation avoids the stability issue caused by time delay in the communication channel since the exchanged information become position/velocity and estimated parameters of the used model. Even facing with big and varying time delay, the system keeps stably and enhanced tracking performance. Besides, the fast convergence of the SPRLS algorithm helps to track the time-varying dynamic of the environment, which satisfies the surgical applications as the soft tissue properties usually are not static.

The originality of this work lies in that an enhanced perception of bilateral teleoperation structure under constant/varying time delay that benefits robotic assisted tele-palpation (time varying environment dynamic) tasks is developed. With SPRLS algorithm to on-line estimate the main parameters of environment, the feedback perception of system can be enhanced with stable velocity/position tracking. The superior velocity/position and force tracking performance of the developed method makes it possible for future robotic-assisted tasks with long-distance communication.

Drawing on the integration of the knowledge-based theory and the resource orchestration theory, this study aims to develop a moderated mediation model on how design/manufacturing/administrative advanced manufacturing technology (AMT) influences product innovation performance. The authors hypothesized that the absorption capacity could mediate the AMT-innovation performance link and that design–manufacturing integration (DMI) could positively moderate the mediating effect of the absorption capacity.

To test the hypothesis, the authors conducted a mail survey of equipment manufacturing firms and obtained 302 valid responses for data analysis. Both hierarchical regression and bootstrapping analysis were conducted to empirically test the research model.

It is revealed that the absorption capacity partially mediated the effect of AMT on innovation and that DMI enhanced the mediated effect. Specifically, the mediating effect of the absorption capacity was more substantial and significant when DMI was high. However, the mediating effect of the absorption capacity was weaker and insignificant when DMI was low.

Overall, this study contributes to the AMT theory on innovation by identifying the absorption capacity and DMI as two key factors that elucidate why and under what conditions AMT affects innovation. Moreover, this study advises managers that besides developing AMT, firms should cultivate a strong DMI, which directs the absorption capacity toward converting the valuable knowledge in firms’ capital equipment into increased innovation performance.

The purpose of this paper is to analyze cross-national and cross-cultural similarities and differences in perceptions and conceptualizations of workplace bullying among human resource professionals (HRPs). Particular emphasis was given to what kind of behaviors are considered as bullying in different countries and what criteria interviewees use to decide whether a particular behavior is bullying or not.

HRPs in 13 different countries/regions (n=199), spanning all continents and all GLOBE cultural clusters (House et al., 2004), were interviewed and a qualitative content analysis was carried out.

Whereas interviewees across the different countries largely saw personal harassment and physical intimidation as bullying, work-related negative acts and social exclusion were construed very differently in the different countries. Repetition, negative effects on the target, intention to harm, and lack of a business case were decision criteria typically used by interviewees across the globe – other criteria varied by country.

The results help HRPs working in multinational organizations understand different perceptions of negative acts.

The findings point to the importance of cultural factors, such as power distance and performance orientation, and other contextual factors, such as economy and legislation for understanding varying conceptualizations of bullying.