Ik Sang Shin, Sang‐Hyun Nam, Rodney Roberts and Seungbin Moon
The purpose of this paper is to provide a minimum time algorithm to intercept an object on a conveyor belt by a robotic manipulator. The goal is that the robot is able to…
Abstract
Purpose
The purpose of this paper is to provide a minimum time algorithm to intercept an object on a conveyor belt by a robotic manipulator. The goal is that the robot is able to intercept objects on a conveyor line moving at a given speed in minimum time.
Design/methodology/approach
In order to formulate the problem, the robot and object‐arrival time functions were introduced, and conclude that the optimal point occurs at the intersection of these two functions. The search algorithm for finding the intersection point between the robot and object arrival time functions are also presented to find the optimal point in real‐time.
Findings
Simulation results show that the presented algorithm is well established for various initial robot positions.
Practical implications
A trapezoidal velocity profile was employed which is used in many industrial robots currently in use. Thus, it is believed that robot travel time algorithm is readily implemented for any commercially available robots.
Originality/value
The paper considers exhaustive cases where robot travel time functions are dependent upon initial positions of robotic end‐effectors. Also presented is a fast converging search algorithm so that real time application is more feasible in many cases.
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Izabela Pruchnicka-Grabias, Iwona Piekunko-Mantiuk and Scott W. Hegerty
The Polish economy has undergone major challenges and changes over the past few decades. The country's trade flows, in particular, have become more firmly tied to the country’s…
Abstract
Purpose
The Polish economy has undergone major challenges and changes over the past few decades. The country's trade flows, in particular, have become more firmly tied to the country’s Western neighbors as they have grown in volume. This study examines Poland's trade balances in ten Standard International Trade Classification (SITC) sectors versus the United States of America, first testing for and isolating structural breaks in each time series. These breaks are then included in a set of the cointegration models to examine their macroeconomic determinants.
Design/methodology/approach
Linear and nonlinear and nonlinear autoregressive distributed lag models, both with and without dummies corresponding to structural breaks, are estimated.
Findings
One key finding is that incorporating these breaks reduces the significance of the real exchange rate in the model, supporting the hypothesis that this variable already incorporates important information. It also results in weaker evidence for cointegration of all variables in certain sectors.
Research limitations/implications
This study looks only at one pair of countries, without any third-country effects.
Originality/value
An important country pair's trade relations is examined; in addition, the real exchange rate is shown to incorporate economic information that results in structural changes in the economy. The paper extends the existing literature by conducting an analysis of Poland's trade balances with the USA, which have not been studied in such a context so far. A strong point is a broad methodology that lets compare the results the authors obtained with different kinds of models, both linear and nonlinear ones, with and without structural breaks.
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The purpose of this paper is to analyse international political economy (IPE) thought in Korea during its pre-modern and colonial eras.
Abstract
Purpose
The purpose of this paper is to analyse international political economy (IPE) thought in Korea during its pre-modern and colonial eras.
Design/methodology/approach
It divides these eras into three periods. The first period is the eighteenth century, in which Silhak arose. The second is the mid- and late nineteenth century, a time characterised by conflicts between Wijeong-cheoksa and Gaehwa thoughts. The final period is that of colonial Korea under imperial Japan, and during this time economic nationalist movements were pursued while Marxist theories were also introduced to the country.
Findings
This research shows that IPE thoughts analogous to Western economic liberalism and economic nationalism did emerge endogenously in Korea when its environment was similar to those in which these Western thoughts arose, although in ways that reflected Korea’s peculiar situations of the times. This study also demonstrates that the “economic” thoughts of the Koreans in these periods were shaped largely by their political thoughts.
Originality/value
This research contributes to the building of a more “globalised” intellectual history of classical IPE thought.
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From 1953 to 1961, the South Korean economy grew slowly; the average per capita GNP growth was a mere percent, amounting to less than $100 in 1961. Few people, therefore, look for…
Abstract
From 1953 to 1961, the South Korean economy grew slowly; the average per capita GNP growth was a mere percent, amounting to less than $100 in 1961. Few people, therefore, look for the sources of later dynamism in this period. As Kyung Cho Chung (1956:225) wrote in the mid‐1950s: “[South Korea] faces grave economic difficulties. The limitations imposed by the Japanese have been succeeded by the division of the country, the general destruction incurred by the Korean War, and the attendant dislocation of the population, which has further disorganized the economy” (see also McCune 1956:191–192). T.R. Fehrenbach (1963:37), in his widely read book on the Korean War, prognosticated: “By themselves, the two halves [of Korea] might possibly build a viable economy by the year 2000, certainly not sooner.”
Danting Cai, Hengyun Li, Rob Law, Haipeng Ji and Huicai Gao
This study aims to investigate the influence of the reviewed establishment’s price level and the user’s social network size and reputation status on consumers’ tendency to post…
Abstract
Purpose
This study aims to investigate the influence of the reviewed establishment’s price level and the user’s social network size and reputation status on consumers’ tendency to post more visual imagery content. Furthermore, it explores the moderating effects of user experiences and geographic distance on these dynamics.
Design/methodology/approach
This study adopts a multi-method approach to explore both the determinants behind the sharing of user-generated photos in online reviews and their internal mechanisms. Using a comprehensive secondary data set from Yelp.com, the authors focused on restaurant reviews from a prominent tourist destination to construct econometric models incorporating time-fixed effects. To enhance the robustness of the authors’ findings, the authors complemented the big data analysis with a series of controlled experiments.
Findings
The reviewed establishments price level and the users reputation status and social network size incite corresponding motivations conspicuous display “reputation seeking” and social approval motivating users to incorporate more images in reviews. “User experiences can amplify the influence of these factors on image sharing.” An increase in the users geographical distance lessens the impact of the price level on image sharing, but it heightens the influence of the users reputation and social network size on the number of shared images.
Practical implications
As a result of this study, high-end establishments can increase their online visibility by leveraging user-generated visual content. A structured rewards program could significantly boost engagement by incentivizing photo sharing, particularly among users with elite status and extensive social networks. Additionally, online review platforms can enhance users’ experiences and foster more dynamic interactions by developing personalized features that encourage visual content production.
Originality/value
This research, anchored in trait activation theory, offers an innovative examination of the determinants of photo-posting behavior in online reviews by enriching the understanding of how the intricate interplay between users’ characteristics and situational cues can shape online review practices.
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Shahid Rasool, Roberto Cerchione, Piera Centobelli, Eugenio Oropallo and Jari Salo
This study aims to highlight the impact of altruistic-self and hunger awareness on socially responsible food consumption through the lens of self-awareness and self-congruity…
Abstract
Purpose
This study aims to highlight the impact of altruistic-self and hunger awareness on socially responsible food consumption through the lens of self-awareness and self-congruity theories due to the great challenge of Sustainable Development Goal 2: Zero Hunger.
Design/methodology/approach
A survey was conducted with a sample of 812 respondents. Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) confirm each variable's structure through the measurement model and test the hypothesis to support a structural model.
Findings
The results highlight that the combination of altruistic-self and hunger awareness (AS-HA congruence) drives consumers to execute socially responsible food consumption. Meanwhile, consumers' food-saving attitude mediation translates to the attitude towards responsible and ethical use increasing socially responsible food consumption, a contextual development in the theory of congruence. Conversely, hunger awareness is not confirmed as significantly influencing socially responsible food consumption.
Practical implications
This research provides valuable insights for academicians and practitioners in developing food waste management strategies that can be implemented to reduce food wastage.
Originality/value
Food waste is a global concern and is challenging for many manufacturing, distribution and individual wastage levels. However, food wastage by consumers is one of the most critical problems which can be minimised with awareness and attitudinal changes in behaviour as a form of socially responsible consumption.
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This study surveyed users and librarians who have been transforming libraries into a complex cultural space by reflecting the trends of the times, investigated and analyzed…
Abstract
Purpose
This study surveyed users and librarians who have been transforming libraries into a complex cultural space by reflecting the trends of the times, investigated and analyzed various status of complex cultural spaces, including perceptional differences among different groups and made an attempt to present a direction for the diversification of library's role.
Design/methodology/approach
This study analyzes the difference between the level of importance and the level of satisfaction for the operational style and use of complex cultural spaces, current status and use of programs and services of libraries as well as the perceptual difference between librarians and users. In order to do so, opinions were collected from librarians who operate complex cultural spaces and users who use the spaces.
Findings
First, the study compared to see if there is a difference between the preferred complex cultural space of libraries and the type of complex cultural space actually provided by libraries. Libraries do not only have data spaces but also made education space, performance space, exhibition space, rest space, community space and experience space available for users. Users were found to more frequently use exhibition space, performance space, rest space and education space among other spaces whereas the utilization rate of community space and experience space was identified to be significantly low. Second, this study also compared to see if there is a difference between users' preference for the type of programs operated by library's complex cultural spaces and the actual programs offered. The comparison of perceived differences between librarians who are the operators of the programs and users who participate in the programs is to compare and improve the consistency of supply and demand. As a result, it was found that the supply and demand for educational programs were most consistent, which would lead to higher participation rate and enhanced operational performance and satisfaction with libraries. Lastly, investigations were carried out to see whether there is a difference in the levels of importance and satisfaction for the operation of complex cultural spaces and perceptional difference between libraries and users. Comprehensively analyzing the results, in the first quadrant of “Keep the Good Work,” librarians showed a higher level of perception compared to users. In particular, librarians were found to have a different perception towards programs (contents) compared to users. Based on such results, a systematic program must be considered when planning for library programs in order to increase uses' satisfaction. In addition, in the second quadrant of “Concentrate Here,” with a high importance and low satisfaction, users showed a high level of importance for programs (contents) whereas libraries identified accessibility as a more important factor, indicating a big perceptional difference between users and librarians.
Research limitations/implications
This study examines the differences between the opinions of operators who create complex cultural spaces and operate programs in the spaces and the opinions of users who participate in the spaces and programs, and it was found that no other studies in Korea and overseas have done the same yet. In addition, it carries a significant meaning in that it does not only investigate the perceptions towards importance and satisfaction, but also suggests improvement directions based on the perceptional differences between users and librarians. In other words, librarians who implement policies at actual sites seem to be able to reflect the results of this study and decide the operation direction of the library.
Originality/value
Users also participate in various services and programs that library's complex cultural spaces offer and enjoy their cultural life. It carries a significant meaning in that the study evaluates the importance-satisfaction of factors affecting the use of complex cultural spaces of libraries by examining perceptions of those users who actually have the experience of using library's complex cultural spaces when the number of libraries attempting to transform into a multicultural space increases. The study made an attempt to enrich the knowledge and understanding of users' visit/use of libraries, suggest improvement directions and factors to focus. Continuous efforts and additional studies must be made in order to vitalize library's complex cultural spaces and secure the position of a cultural facility as well as a communication space located at the heart of regional society.