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1 – 10 of 12Wang Yajie, Wendong Zhang, Jiangong Cui, Xiaoxia Chu, Guojun Zhang, Renxin Wang, Haoming Huang and Xiaoping Zhai
In acoustic detection technology, optical microcavities offer higher detection bandwidth and sensitivity than traditional acoustic sensors. However, research on acoustic detection…
Abstract
Purpose
In acoustic detection technology, optical microcavities offer higher detection bandwidth and sensitivity than traditional acoustic sensors. However, research on acoustic detection technologies involving optical microcavities has not yet been reported. Therefore, this paper aims to design and construct an underwater acoustic detection system based on optical microcavities and study its acoustic detection technology to improve its performance.
Design/methodology/approach
Based on the principles of optical microcavity acoustic sensors, a signal-detection circuit was designed to form a detection system in conjunction with a laser, an optical waveguide resonator and an oscilloscope. This circuit consists of two modules: a photodetection module and a filter amplification module.
Findings
The photodetection module features a baseline noise of −106.499 dBm and can detect device spectral line depths of up to 2410 mV. The gain stability of the filter amplification module was 58 dB ± 1 dB with a noise gain of −107.626 dBm. This design allows the acoustic detection system to detect signals with high sensitivity within the 10 Hz−1.2 MHz frequency band, achieving a maximum sensitivity of −126 dB re 1 V/µPa at 800 Hz and a minimum detectable pressure (MDP) of 0.37 mPa/Hz1/2, corresponding to a noise equivalent pressure (NEP) of 51.36 dB re 1 V/µPa.
Originality/value
This study designs and constructs a broadband underwater acoustic detection system specifically for optical waveguide resonators based on the sensing principles of silicon dioxide optical waveguide resonators. Experiments demonstrated that the signal detection module improves the sensitivity of underwater acoustic detection based on optical waveguides.
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Zhiwei Zhang, Zhe Liu, Yanzi Miao and Xiaoping Ma
This paper aims to develop a robust navigation enhancement framework to handle one of the most urgent needs for real applications of autonomous vehicles nowadays, as these corner…
Abstract
Purpose
This paper aims to develop a robust navigation enhancement framework to handle one of the most urgent needs for real applications of autonomous vehicles nowadays, as these corner cases act as the most commonly occurred risks in potential self-driving accidents.
Design/methodology/approach
In this paper, the main idea is to fully exploit the consistent features among spatio-temporal data and thus detect the anomalies and build residual channels to reconstruct the abnormal information. The authors first develop an anomaly detection algorithm, then followed by a corresponding disturbed information reconstruction network which has strong robustness to address both the nature disturbances and external attacks. Finally, the authors introduce a fully end-to-end resilient navigation performance enhancement framework to improve the driving performance of existing self-driving models under attacks and disturbances.
Findings
Comparison results on CARLA platform and real experiments demonstrate strong resilience of the authors’ approach which enhances the navigation performance under disturbances and attacks.
Originality/value
Reliable and resilient navigation performance under various nature disturbances and even external attacks is one of the most urgent needs for real applications of autonomous vehicles nowadays, as these corner cases act as the most commonly occurred risks in potential self-driving accidents. The information reconstruction approach provides a resilient navigation performance enhancement method for existing self-driving models.
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The purpose of this paper is to examine the nature of the China–North Korea alliance that has been often described as “Lips and Teeth” or “Blood Tied.”
Abstract
Purpose
The purpose of this paper is to examine the nature of the China–North Korea alliance that has been often described as “Lips and Teeth” or “Blood Tied.”
Design/methodology/approach
In order to make accurate assessment of the China–North Korea relations, this paper conducts indepth historical analysis of the relations. The relations between two countries were formed in 1940s and lasts until today.
Findings
However, by looking into the history of two countries, this paper argues that the bilateral relations are not an extraordinary but an ordinary state-to-state relations dictated by national interests. Changes in their calculus of national interests affect their relations. They cooperate with each other when they see mutual benefit in doing so and tension arises when there is a conflict of interests. What should be noted is that the changes in the nature of relations is different from the deterioration in the relations. Recent improvement of their relations supports this paper’s argument.
Originality/value
This paper suggests new look at the China–North Korea relations that has been considered as an extraordinary relations. The findings of this paper suggest that the alliance relation is not different from other state-to-state relations where conflict and cooperation occurs based on their national interests.
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Along with the “reform and open door” policy launched in the late 1970s, China has experienced an annual average GDP growth rate of 9.8% between 1978 and 2002 (Hu, 2003, October 19…
Abstract
Along with the “reform and open door” policy launched in the late 1970s, China has experienced an annual average GDP growth rate of 9.8% between 1978 and 2002 (Hu, 2003, October 19). China's economy system has also gone through a fundamental transition from a central planning system to a socialist free market economy. To cope with the booming economy and radical social changes, the higher education system of China has been undergoing a process of expansion with marketization (World Bank, 1997).
Zhiwei Zhang, Saasha Nair, Zhe Liu, Yanzi Miao and Xiaoping Ma
This paper aims to facilitate the research and development of resilient navigation approaches, explore the robustness of adversarial training to different interferences and…
Abstract
Purpose
This paper aims to facilitate the research and development of resilient navigation approaches, explore the robustness of adversarial training to different interferences and promote their practical applications in real complex environments.
Design/methodology/approach
In this paper, the authors first summarize the real accidents of self-driving cars and develop a set of methods to simulate challenging scenarios by introducing simulated disturbances and attacks into the input sensor data. Then a robust and transferable adversarial training approach is proposed to improve the performance and resilience of current navigation models, followed by a multi-modality fusion-based end-to-end navigation network to demonstrate real-world performance of the methods. In addition, an augmented self-driving simulator with designed evaluation metrics is built to evaluate navigation models.
Findings
Synthetical experiments in simulator demonstrate the robustness and transferability of the proposed adversarial training strategy. The simulation function flow can also be used for promoting any robust perception or navigation researches. Then a multi-modality fusion-based navigation framework is proposed as a light-weight model to evaluate the adversarial training method in real-world.
Originality/value
The adversarial training approach provides a transferable and robust enhancement for navigation models both in simulation and real-world.
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Xiaoping Tong, Ronald L. Jacobs and Yarong Wang
What remains uncertain with corporate universities is the contribution they provide to their organizations, particularly when considered from the perspective of managers. Managers…
Abstract
Purpose
What remains uncertain with corporate universities is the contribution they provide to their organizations, particularly when considered from the perspective of managers. Managers are important stakeholders, as they may participate in carrying out the mission and policies that govern the corporate university and participate in the programs offered. Organizations would benefit from knowing more about the perceptions of managers. The purpose of this paper is to study managers’ perceptions of the accountability of two corporate university programs in China and its relationship with the managers’ overall involvement in corporate university programs and their commitment to the organization.
Design/methodology/approach
The study was conducted in two state-owned organizations in China, a country in which many organizations have adopted corporate universities. A mixed-method approach was used to carry out the study.
Findings
The results showed that there was a moderate relationship between the managers’ perceptions of the accountability of corporate university programs, based on two management development programs and managers’ involvement in corporate university programs and their commitment to the organization. The results also showed a low relationship between managers’ involvement in their corporate university programs and commitment to the organization.
Originality/value
The findings provide implications for managing corporate universities in China and enhancing the accountability of these initiatives. The study serves as a basis for future studies involving corporate universities and on the accountability of and involvement in training.
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This paper aims to offer insight into how strategies within the accounting profession, which has been becoming more global, might be changed by the recent outbreak of the Second…
Abstract
Purpose
This paper aims to offer insight into how strategies within the accounting profession, which has been becoming more global, might be changed by the recent outbreak of the Second Cold War between the West and the Rest of the World.
Design/methodology/approach
We explore the strategies of those who called themselves “Confucian accountants” in China, a country which has recently discouraged its state-owned enterprises from using the services of the Big 4. We do this by employing qualitative research methods, including reflexive photo interviews, in which Big-4 accountants, recognised as the most Westernised accounting actors in China, and Confucian accountants are asked to take and explain photographs representing their professional lives. Bourdieu’s notions of “economy of practices” and “vision-of-division strategy” are drawn upon to understand who the Confucian accountants are and what they do strategically in their pursuit of a higher revenue stream and improved social standing in the Chinese social space.
Findings
The homegrown Confucian accountants share cultural-cognitive characteristics with neighbouring social actors, such as their clients and government officials, who have been inculcated with Confucianism and the state’s cultural confidence policy in pursuit of a “socialist market economy with Chinese characteristics”. Those accountants try to enhance their social standing and revenue stream by strategically demonstrating their difference from Big-4 accountants. For this purpose, they wear Confucian clothes, have Confucian props in their office, employ Confucian phrases in their everyday conversations, use Confucian business cards and construct and maintain guanxi with government officials and clients.
Originality/value
This paper is the first attempt to explore Confucian accountants’ strategies for increasing their revenue and social standing at the start of the Second Cold War.
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Yui‐Tim Wong and Yui‐Woon Wong
In this study, the authors aim to investigate the impact of workplace guanxi on employees' commitment to supervisor in relation to other critical HRM outcome variables in Chinese…
Abstract
Purpose
In this study, the authors aim to investigate the impact of workplace guanxi on employees' commitment to supervisor in relation to other critical HRM outcome variables in Chinese international joint ventures (IJVs).
Design/methodology/approach
The dataset used in this study consists of 255 employees and their 86 direct supervisors in two IJVs in China. The authors adopted LISREL to test a proposed model and investigate the following relationships: subordinate‐supervisor guanxi as an antecedent of commitment to supervisor and organisational citizenship behaviour (OCB), job security as an antecedent of affective commitment, and their impact on employee turnover intention.
Findings
The empirical results show that subordinate‐supervisor workplace guanxi has positive and significant effect on commitment to supervisor, whereas commitment to supervisor has positive and significant effect on affective commitment and organisational citizenship behaviour (OCB) of employees. Such relationships further lead to reduced employee turnover intention.
Research limitations/implications
This study reveals the significance of workplace guanxi and commitment to supervisor and their impact on other important HRM outcome variables in Chinese IJV employees. It contributes to the literature by offering insight on how Chinese guanxi culture interacts with other HRM variables in IJVs and informs future research in relation to leader‐member exchange in the Chinese context.
Practical implications
By establishing a healthy workplace guanxi with employees, supervisors can play a critical role in achieving desired organization outcomes such as improving affective commitment and reducing turnover.
Originality/value
Existing research shows that guanxi is a multi‐dimensional construct and critical for Chinese HRM research. This study examines the dimension of workplace guanxi and investigates the impact of subordinate‐supervisor guanxi on commitment to supervisor and other HRM outcome variables in IJVs.
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Shaomin Li and Matthew Farrell
Answering the call to study important issues in the real world (Buckley et al., 2017; Delios, 2017; Phan, 2019), and motivated by the trade war between the US and China, the…
Abstract
Purpose
Answering the call to study important issues in the real world (Buckley et al., 2017; Delios, 2017; Phan, 2019), and motivated by the trade war between the US and China, the authors look beyond it to examine the more fundamental issues behind it. From a political economy perspective, the authors examine the interplay of government, society and firms in China to identify new phenomena that may impact business with, and research on, China.
Design/methodology/approach
A multi-case qualitative method is used to present and analyze evidence and develop our arguments. Specifically, we use scholarly sources, anecdotal evidence, reports, statistics and government documents and policies to support our arguments.
Findings
After four decades of economic reform, the Chinese Communist Party (CCP) controls every aspect of the society. Living, working and doing business are not a right but a privilege granted by the party. To a great degree, state-owned firms are business units/subsidiaries, and private/foreign firms are franchisees of the party, with the party leader being the CEO of China, Inc. The interplay between China and other countries is essentially a competition between a huge corporation and other states.
Practical implications
At the firm level, our study suggests that for MNCs dealing with Chinese firms, they need to know that Chinese firms are units of China, Inc. Practitioners should take into account the long-term strategic goals of the CCP as well as business considerations when dealing with Chinese partners or competitors.
Social implications
At the country level, our study shows that other countries dealing with China must be aware that they are dealing with a huge corporation.
Originality/value
That the CCP runs China as a corporation is a new perspective that will help the international community reexamine global competition.
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