J. Riguidel and T. Ridler
This paper details the experiences gained by a photoresist manufacturer, an equipment supplier and a PCB manufacturing end user in the conversion of an inner layer production…
Abstract
This paper details the experiences gained by a photoresist manufacturer, an equipment supplier and a PCB manufacturing end user in the conversion of an inner layer production facility from dry film to liquid resists. The paper describes the steps necessary to plan the conversion, install equipment, start up production, train personnel and yield improve a liquid resist fine line inner layer process.
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Yih‐Chih Chiou, Jian‐Zong Liu and Yu‐Teng Liang
The detection of invisible micro cracks (μ‐cracks) in multi‐crystalline silicon (mc‐si) solar wafers is difficult because of the wafers' heterogeneously textured backgrounds. The…
Abstract
Purpose
The detection of invisible micro cracks (μ‐cracks) in multi‐crystalline silicon (mc‐si) solar wafers is difficult because of the wafers' heterogeneously textured backgrounds. The difficulty is twofold. First, invisible μ‐cracks must be visualized to imaging devices. Second, an image processing sequence capable of extracting μ‐cracks from the captured images must be developed. The purpose of this paper is to reveal invisible μ‐cracks that lie beneath the surface of mc‐si solar wafers.
Design/methodology/approach
To solve the problems, the authors first set up a near infrared (NIR) imaging system to capture images of interior μ‐cracks. After being able to see the invisible μ‐cracks, a region‐growing flaw detection algorithm was then developed to extract μ‐cracks from the captured images.
Findings
The experimental results showed that the proposed μ‐cracks inspection system is effective in detecting μ‐cracks. In addition, the system can also be used for the inspection of silicon solar wafers for stain, pinhole, inclusion and macro cracks. The overall accuracy of the defect detection system is 99.85 percent.
Research limitations/implications
At present, the developed prototype system can detect μ‐crack down to 13.4 μm. The inspection resolution is high but the speed is low. However, the limitation on inspection speed can easily be lifted by choosing a higher resolution NIR camera.
Practical implications
Generally, this paper is a great reference for researchers who are interested in developing automatic optical inspection systems for inspecting solar wafer for invisible μ‐cracks.
Originality/value
The research described in this paper makes a step toward developing an effective while low‐cost approach for revealing invisible μ‐crack of mc‐si solar wafers. The advantages provided by the proposed system include excellent crack detection sensitivity, capability of detecting hidden subsurface μ‐cracks, and low cost.
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The dates for the conference of the International Federation for Documentation to be held in London in September 1961 have now been settled finally. They differ slightly from…
Abstract
The dates for the conference of the International Federation for Documentation to be held in London in September 1961 have now been settled finally. They differ slightly from those already notified to members of Aslib, who are now requested to note that the first public session will take place at 2.30 p.m. on Tuesday 12th September. The last public session will take place during the afternoon of Friday 15th September and it is hoped to arrange a conference dinner on the evening of the same day. Aslib members who are making early reservations of accommodation in London for the conference should make a special note of this timetable.
Paraskevi Zacharia, Nikos Aspragathos, Ioannis Mariolis and Evaggelos Dermatas
The purpose of this paper is to present a flexible automation system for the manipulation of fabrics lying on a work table and focuses on the design of a robot control system…
Abstract
Purpose
The purpose of this paper is to present a flexible automation system for the manipulation of fabrics lying on a work table and focuses on the design of a robot control system based on visual servoing and fuzzy logic for handling flexible sheets lying on a table. The main contribution of this paper is that the developed system tolerates deformations that may appear during robot handling of fabrics due to buckling without the need for fabric rigidization.
Design/methodology/approach
The vision system, consisting of two cameras, extracts the features that are necessary for handling the fabric despite possible deformations or occlusion from the robotic arm. An intelligent controller based on visual servoing is implemented enabling the robot to handle a variety of fabrics without the need for a mathematical model or complex mathematical/geometrical computations. To enhance its performance, the conventional fuzzy logic controller is tuned through genetic algorithms and an adaptation mechanism and the respective performance is evaluated. The experiments show that the proposed robotic system is flexible enough to handle various fabrics and robust in handling deformations that may change fabric's shape due to buckling.
Findings
The experiments show that the proposed robotic system is flexible enough to handle various fabrics and robust in handling deformations that may change fabric's shape due to buckling.
Research limitations/implications
It is not possible to cover all the aspects of robot handling of flexible materials in this paper, since there are still several related issues requiring solutions. Considering the future research work, the proposed approach can be extended to sew fabrics with curved edges and correcting the distortions presented during robot handling of fabrics.
Practical implications
The paper includes implications for robot handling a variety of fabrics with low and medium bending rigidity on a working table. The intent of this paper deals with buckling in context of achieving a successful seam tracking and not the correction strategy against folding or wrinkling problems.
Originality/value
This paper fulfils an identified need to study the fabrics' behavior towards robot handling on a working table.
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Percy Chinoy and Marc Langlois
Printed circuit board designers face formidable challenges of increased functionality in smaller size boards, and reduced EMI in high‐speed circuits. Embedded passives technology…
Abstract
Printed circuit board designers face formidable challenges of increased functionality in smaller size boards, and reduced EMI in high‐speed circuits. Embedded passives technology can open up valuable space on the board surface while also improving the electrical performance and reliability of high density, high‐speed designs. Shipley has developed a thin‐film, high sheet resistivity (1,000 Ω/□) resistor material sold under the trade name InSite™ in response to this market need. This paper describes the manufacturing process for embedded resistors and discusses measured data on resistance values, uniformity, and thermal effects, and their impact on design rules for resistor size. Preliminary results of Shipley's thin‐film embedded capacitor technology with high capacitance densities (10 and 200 nF/cm2) are also presented.
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Paul Riesthuis and Henry Otgaar
Before psychological research is used for policy reforms and recommendations, it is important to evaluate its replicability, generalizability and practical relevance. This paper…
Abstract
Purpose
Before psychological research is used for policy reforms and recommendations, it is important to evaluate its replicability, generalizability and practical relevance. This paper aims to examine these three criteria for published articles in the Journal of Criminal Psychology.
Design/methodology/approach
Through a literature search for published articles in the Journal of Criminal Psychology related to the topics of the special issue Contemporary Developments in the Retrieval and Evaluation of Witness Testimony: Towards making research more applicable to investigations, this paper identified 158 eligible articles. For each article, this paper extracted variables related to the type of article, reported p-values, type of sample and stimuli, power analyses and conducted analyses and how effect sizes were used and interpreted. This paper analyzed these variables descriptively and conducted a z-curve analysis.
Findings
In terms of generalizability, the articles examined populations of interest (e.g. offenders, prisoners) and there was no sole reliance on Western, Educated, Industrial, Rich and Democratic samples. However, for replicability, there were currently no replication studies or published Registered Reports and the z-curve analysis indicated a low expected replication rate. Moreover, when examining practical relevance, almost no power analyses were conducted and when they were conducted, they were not reproducible or did not use meaningful effect sizes. Finally, although the majority of studies reported effect sizes, they were oftentimes not interpreted.
Originality/value
The present study sheds light on the potential societal impact of published articles in the Journal of Criminal Psychology.
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Amie M. Schuck and Cara E. Rabe-Hemp
This study explored women police leaders’ (n = 503) attitudes and experiences relative to men police leaders (n = 3,359) and women police officers (n = 1,153) with no supervisory…
Abstract
Purpose
This study explored women police leaders’ (n = 503) attitudes and experiences relative to men police leaders (n = 3,359) and women police officers (n = 1,153) with no supervisory responsibilities.
Design/methodology/approach
Self-reported survey data were collected from 5,015 officers in 85 United States law enforcement agencies.
Findings
Compared with men police leaders, women police leaders were more likely to identify inequalities in the workplace, empower community members’ voices in defining legitimate forms of policing, elevate the importance of police misconduct and reject a tough physical approach. Women police leaders were also more likely than male police leaders to think that effective leadership influences the behavior of subordinates and more likely to feel that the rules leave room for interpretation. Black women police leaders reported different attitudes and experiences than White women police leaders, including recognizing greater inequalities, prioritizing increased law enforcement activities and experiencing less occupational burnout. Except for the seriousness of misconduct, there were no differences between women police leaders and women police officers without supervisory responsibilities.
Originality/value
This study contributes to the ongoing conversation about women in policing and how increasing the number of women in leadership roles affects law enforcement agencies and the public’s experiences with policing. As policing continues to face calls for reform and employment challenges, increasing the number of women in leadership plays a vital role in producing law enforcement agencies that are equitable and efficacious.
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Antonella Francesca Cicchiello, Maria Cristina Pietronudo, Daniele Leone and Andrea Caporuscio
The aim of this research is to contribute to the existing literature about the entrepreneurial conditions in crowd-based contexts by describing how different European countries…
Abstract
Purpose
The aim of this research is to contribute to the existing literature about the entrepreneurial conditions in crowd-based contexts by describing how different European countries regulate equity crowdfunding market in order to incentive the investments and protect investors.
Design/methodology/approach
Based on a legal acts' analysis, we conduct a qualitative study comparing the crowdfunding regulation addressed to investors. In particular, we focus our analysis on the European countries with the highest concentration of crowdfunding platforms (i.e. the UK, Germany, France, Italy and Spain).
Findings
The results show that some countries, such as the UK, Germany and France, present an investor-oriented approach based on non-restrictive regulation, while other countries, such as Spain and Italy, have a restrictive approach that protects investors excessively and discourages them. In particular, the case study of France shows how the introduction of unrestricted regulation can produce positive effects on the volume of crowdfunding transactions.
Practical implications
The paper is addressed to investors, policymakers and intermediaries (platforms) to help the first in orienting themselves between the different crowdfunding regulations and the latter in aligning and orchestrating rules and norms.
Originality/value
This is the first study that analyses the role of investor-oriented regulations in the promotion of entrepreneurship through the identification of four key factors to monitor equity crowdfunding regulations.
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Amorette Mae Perkins, Joseph Henry Ridler, Laura Hammond, Simone Davies and Corinna Hackmann
The purpose of this paper is to explore the impact of attending a Recovery College (RC) on NHS staff attitudes towards mental health and recovery, clinical and peer interactions…
Abstract
Purpose
The purpose of this paper is to explore the impact of attending a Recovery College (RC) on NHS staff attitudes towards mental health and recovery, clinical and peer interactions, and personal wellbeing.
Design/methodology/approach
Qualitative and quantitative data were collected via online surveys from 94 participants. Thematic analysis and descriptive statistics were used.
Findings
Themes were identified for change in attitudes towards mental health and recovery: new meanings of recovery; challenging traditional views on recovery; hope for recovery; and increased parity. The majority felt that the RC positively influenced the way they supported others. Themes relating to this were: using or sharing taught skills; increased understanding and empathy; challenging non-recovery practices; and adopting recovery practices. Responses highlighted themes surrounding impacts on personal wellbeing: connectedness; safe place; self-care; and sense of competency and morale at work. Another category labelled “Design of RC” emerged with the themes co-learning, co-production and co-facilitation, and content.
Research limitations/implications
It is important to understand whether RCs are a useful resource for staff. This research suggests that RCs could help to reconcile Implementing Recovery through Organisational Change’s 10 Key Challenges and reduce staff burnout, which has implications for service provision.
Originality/value
This is one of the first papers to directly explore the value of RCs for staff attending as students, highlighting experiences of co-learning.
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ANN M. RIDLER and J. STUART WEIR
The CNAA impact on research in librarianship has been in ways equally true of other subject areas. For this reason this paper aims to set the Council's involvement in the broader…
Abstract
The CNAA impact on research in librarianship has been in ways equally true of other subject areas. For this reason this paper aims to set the Council's involvement in the broader context of the work and policies of the Council in general, seen against published statements of government policy. It considers the nature of Council's responsibility for research, and the impact it seeks to have on research in public sector higher education, all of which is relevant to librarianship and may provoke reflection as to possible future developments in institutional provision for research in librarianship. The paper then analyses the applications Council has approved for research degrees in librarianship, and considers the likely trend of future developments.