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The segmentation of printed circuit board (PCB) images is an important process in PCB inspection. The circuit traces, pads and vias in a PCB are dense and curved, and the PCB image obtained using different cameras or in different conditions may exhibit a large image gradient, which leads to inaccuracy and inefficiency in the PCB image segmentation. This paper aims to propose an improved local binary fitting level set method with prior graph cut, aiming to improve the accuracy and efficiency of the segmentation of PCB images obtained using different cameras or in different environments.

First, the paper constructs a 4-connected undirected graph using a given PCB image and classifies it based on the graph cut. Second, an adaptive initialization level set is implemented using the priori information obtained from the graph cut. Finally, the paper constructs a priori energy term using the prior information and introduces it into the energy function of the level set.

The approach results in an improved accuracy of segmentation in the context of a large gradient within the image. Experimental results demonstrate that the method can solve the deviation of artificially initialized level set from targets and improve the efficiency and accuracy of segmentation.

This study only considers level set method as the research object. Iteration of the level set method takes a long time for a given huge PCB picture, which makes it impossible to apply to scenes with high real-time requirements.

PCB image segmentation is an important process in the PCB inspection. Since template matching and morphology techniques are well-established, image segmentation quality has a significant impact on the accuracy of detection.

This paper studies the segmentation of PCB images, improves the efficiency and accuracy of segmentation and facilitates the subsequent applications, such as in the nondestructive testing of PCB.

This study aims to produce a superhydrophobic fabric surface with a layered rough structure and which are resistant to droplet adhesion. Polydimethylsiloxane (PDMS) systems doped with stearic acid modified titanium dioxide (SA-TiO₂) nanoparticles was sprayed onto the surface of cotton fabric.

This experiment therefore uses a simple method to prepare superhydrophobic textiles by spraying SA-TiO₂ particles mixed with PDMS onto the surface of cotton fabrics. The effects of the ratio of stearic acid to TiO₂, spraying times and tension on the apparent morphological structure and hydrophobic properties of the cotton fabric were investigated.

The results showed that the stearic acid-modified TiO₂ nanoparticles were hydrophobic and more uniformly dispersed in the PDMS solution. When the modification ratio of stearic acid to TiO₂ was 3:5, the water contact angle of cotton fabric was 155.48° and sliding angle was 6.67° under the applied tension for three times of spraying, showing superhydrophobicity. The fabric shows super hydrophobic and anti-adhesive properties to a wide range of liquids such as cola, dyeing liquids, tea, milk and simulated blood. The surface tension of the liquid shows a negative correlation with its adhesion to the fabric.

The SA-TiO₂ and PDMS were applied to the fabric surface by spraying, which not only gave the fabric superhydrophobic properties, but also created anti-adhesion to a wide range of droplets.

The superhydrophobic cotton fabrics prepared by this method showed good anti-adhesive behavior to common stains and simulated blood and can be used in the development of medical protective textiles.

Modification of TiO₂ with stearic acid to prepare SA-TiO₂ with excellent hydrophobic properties, which was mixed with PDMS to make suspensions. Fluorine-free superhydrophobic fabrics were prepared by spraying method. It also exhibited excellent anti-adhesive properties against blood, providing a reference for the preparation of self-cleaning and anti-adhesive surgical gowns.

The purpose of this study is to investigate the effect of the Trans-Anatolian Natural Gas Pipeline Project (TANAP) on industrial production in Turkey. The TANAP is a project which ensures the security of the country’s natural gas supply and encourages a decrease in energy prices. So, this study investigates TANAP’s efforts to decrease gas prices, as well as the effects of gas prices on industrial production.

The data include gas prices and industrial production index series. Gas prices are approached for industrial users (nonresidential) in Turkey and industrial production index series have been discussed for whole industries. The Johansen cointegration method has been used to analyze the data, spanning the period from 2005M01 to 2015M11.

Results indicate that the decrease in the energy prices has a positive effect on the industrial production index, which is accepted as a basic sign of economic growth. Accordingly, it has been proved that gas priced had a significant effect on industrial production in Turkish economy during the respective periods.

This study has supported the argument that TANAP helps to decrease gas prices in Turkey. It can be said that a decrease in gas price is expected to have positive effect on industrial production in the long-term.

The present study shows that projects such as TANAP can help gas importing countries like Turkey to decrease gas prices and increase industrial production. In this context, this study supports projects that decreasing gas prices for energy importing countries in the long term.

This chapter details how engaging students in digital comics creation might support adolescents in strengthening their narrative writing capabilities. This chapter first provides a more detailed explanation of the micro and macrostructural elements involved in narrative production. Second, the chapter provides an introduction to comics and important design features. The authors also illuminate the complexity of multimodal texts (texts that combine images and words) and link visual narrative pedagogy and curriculum to classroom equity and accessibility. Across these opening sections, academic standards are referenced to show how the comics medium aligns with national visions of what robust English Language Arts education entails. The chapter concludes with descriptions of specific pedagogical strategies and digital comic-making tools that teachers and interventionists might explore with students within various classroom contexts. Examples of digital comics designed using various web tools are also shared.

The purpose of this study is to examine the implementation of human resource management (HRM) practices that facilitate innovation in the public sector in a developing country.

Qualitative method was engaged whereby a semi-structured interview was conducted to get the responses of two groups of employees which are top management and executive in two types of public organizations which are awarded and non-awarded. The collected data was later analyzed thematically.

The results show that there are differences and similarities among the public agencies in terms of their implementation of HRM practices that facilitate innovation. Apparently, the awarded public agencies do follow HRM practices that really facilitate innovation such as local training, provide more types of rewards to their employees and set a higher minimum level of innovation in their performance evaluation.

This research confines only 10 public agencies in Malaysia. Future studies might want to include a larger sample size to make the findings more extensive. It also would be interesting to know different approaches in HRM implemented in the private organizations as well as to examine their influences on performance and other organizational factors.

Good and fair HRM practices such as training, reward and performance appraisal practices that focus on innovation facilitate and produce more innovative employees and organization innovation. Thus, public managers should implement them to a higher extent.

To the best of the authors’ knowledge, this is the first study that aims to engage the qualitative method in understanding how HRM practices can facilitate innovation in a developing country.

The purpose of this study is to introduce a unified framework which integrates knowledge management processes (knowledge creation, sharing, storage and documentation and acquisition), innovation capability (product, process, marketing and organizational and organizational performance (operational, financial and product quality). Then empirically test the effect of knowledge management processes (KMP) on innovation capability (IC), the effect of IC on organizational performance (OP) and the impact of KMP on OP through the mediator (IC).

A questionnaire was designed and addressed to the general managers of the Jordanian companies making up the target population. Statistical techniques employed included confirmatory factor analysis and structural equation modeling (SEM) using AMOS 24 to test the hypotheses.

The results show that KMP influences IC, IC affects OP and KMP impacts OP through the mediator (IC).

The use of longitudinal data and comparisons with this study would provide further insights that would assist in generalizing knowledge related to the relationships among KMP, IC and Os' P.

If organizations fully comprehend KMP and IC, they would be able to implement them successfully, creating value for their companies and improving OP.

The existing research on KMP and IC is primarily conceptual and descriptive in nature, and empirical research confirming the real impact of KMP when developing IC is lacking. Also. the relationship between innovation capabilities and OP has not been adequately studied. Hence, this study introduces a conceptual framework which integrates KMP, IC and OP and simultaneously empirically tests the relationships among them.

Entrepreneurship is a key factor in the growth of regions, given its impact on innovation and job creation. The relationship between start-up companies and their environment is closely linked to negotiation mechanisms since the formation of trust, the governance structure, and how entrepreneurs protect themselves from adverse situations depend on them. However, no single framework can bring together the bargaining, entrepreneurship, and institutional factors that determine the success or failure of start-ups. The objective of this chapter is to jointly analyze bargaining and entrepreneurship through the theory of economic institutionalism, Transaction Cost Theory, and Cognitive Organization Theory. To this end, an analytical scheme is proposed that brings together these precepts applied theoretically to the Latin American case. The scope is to provide a novel framework of analysis by incorporating essential institutional elements for negotiation, such as contracting, governance, organizational structure, trust, relational risks, and hedging against opportunism.

The purpose of this paper is to investigate the relation between debt structure and future external financing and investment. Furthermore, it aims to analyze the association between debt structure and future financial performance.

Volume, maturity, possessing collateral and having priority at the settlement date are the dimensions of debt structure that have been employed in this paper. The sample consists of 1,060 firm-year observations from Tehran Stock Exchange corporations during the period 2009–2018.

The findings reveal that greater reliance on financial leverage (debt volume) and short-term debt are associated with increases in future debt financing as well as future equity financing. Moreover, these two dimensions of debt structure are positively related to future investment. This paper also shows that the positive impact of financial leverage and short-term debt on future financing and investment can finally lead to a favorable financial performance. Regarding other dimensions of debt structure, the results suggest that although collateralized debt with the priority option at the settlement date enhances future external financing, this type of debt can ultimately lead to a reduction in future investment and financial performance. Finally, the findings indicate that uncollateralized debt exacerbates future financial performance.

Financial performance can be affected by several factors, including available funds, investment amount, investment efficiency and managerial capability. However, this paper only considers the investment amount and external financing as the channels through which debt structure improves future financial performance. This study has the potential to contribute to one of the most important issues in finance and business fields, despite its probable trivial drawbacks.

Financing strategies as one of the most controversial topics have been meticulously scrutinized in this paper and practical implications are made to facilitate the process of decision-making regarding the optimal type of debt financing.

This study extends the literature by analyzing the direct link between debt structure and firm performance in firms domiciled in developing markets.

Joule heating effect is a pervasive phenomenon in electro-osmotic flow because of the applied electric field and fluid electrical resistivity across the microchannels. Its effect in electro-osmotic flow field is an important mechanism to control the flow inside the microchannels and it includes numerous applications.

This research article details the numerical investigation on alterations in the profile of stream wise velocity of simple Couette-electroosmotic flow and pressure driven electro-osmotic Couette flow by the dynamic viscosity variations happened due to the Joule heating effect throughout the dielectric fluid usually observed in various microfluidic devices.

The advantages of the Joule heating effect are not only to control the velocity in microchannels but also to act as an active method to enhance the mixing efficiency. The results of numerical investigations reveal that the thermal field due to Joule heating effect causes considerable variation of dynamic viscosity across the microchannel to initiate a shear flow when EDL (Electrical Double Layer) thickness is increased and is being varied across the channel.

This research work suggest how joule heating can be used as en effective mechanism for flow control in microfluidic devices.