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The limited strength of polylactic acid (PLA) hinders its extensive engineering applications. This paper aims to enhance its strength and realize diverse applications.

Here, the continuous fiber reinforced PLA composites are fabricated by a customized fused filament fabrication three-dimensional printer. Uniaxial tensile and three-point flexural tests have been conducted to analyze the reinforcement effect of the proposed composites. To unveil the adhering mechanism of optic fiber (OF) and PLA, post failure analysis including the micro imaging and morphology have been performed. The underlying mechanism is that the axial tensile strength of the OF and the interfacial adhesion between PLA and OF compete to enhance the mechanical properties of the composite.

It is found that 10%–20% enhancement of strength, ductility and toughness due to the incorporation of the continuous OF.

The continuous OFs are put into PLA first time to improve the strength. The fabrication method and process reported here are potentially applied in such engineering applications as aerospace, defense, auto, medicine, etc.

In this chapter, the author compares two representations of the child from two famous films by the Fifth Generation’s top director in China, Chen Kaige, Yellow Earth (1984) and Together (2002). The girl’s story in the former and the boy’s story in the latter show respectively the dissolution of the Party/state as an extended family home, and it being replaced by the atomized, fluid, and flexible family home in the new state-led neo-liberal order. Compared with the girl, the boy in the new century tries to convey an equally lyrical articulation of the family/home, but differently, with a strong sense of his subjectivity. Thus, the boy’s voice in Together, self-reflective, artistically innovative, and affective, becomes a voice of resistance against authoritarian neoliberalism in post-socialist China.

Deployment of deep neural networks on embedded devices is becoming increasingly popular because it can reduce latency and energy consumption for data communication. This paper aims to give out a method for deployment the deep neural networks on a quad-rotor aircraft for further expanding its application scope.

In this paper, a design scheme is proposed to implement the flight mission of the quad-rotor aircraft based on multi-sensor fusion. It integrates attitude acquisition module, global positioning system position acquisition module, optical flow sensor, ultrasonic sensor and Bluetooth communication module, etc. A 32-bit microcontroller is adopted as the main controller for the quad-rotor aircraft. To make the quad-rotor aircraft be more intelligent, the study also proposes a method to deploy the pre-trained deep neural networks model on the microcontroller based on the software packages of the RT-Thread internet of things operating system.

This design provides a simple and efficient design scheme to further integrate artificial intelligence (AI) algorithm for the control system design of quad-rotor aircraft.

This method provides an application example and a design reference for the implementation of AI algorithms on unmanned aerial vehicle or terminal robots.

The purpose of this paper is to describe the current status of open access (OA) in China, including problems and possible solutions and to introduce the role of the academic library in OA.

This research paper analyzes several successful OA projects with a focus on the user requirements and the role of the academic library. The paper also analyzes the current status of OA in three areas. First, publishers. The paper will introduce some Chinese OA websites in detail, and point out the problems facing Chinese OA. Second, OA users (both writers and readers) requirements will be investigated. Third, the role of libraries will be analyzed.

The libraries goal of sharing resources is similar to that of the OA movement. The paper will recommend some Chinese OA resources set up by libraries. The paper will also describe OA promotion by China libraries. Some suggestions for the way forward are also described.

The paper will analyze OA development and problems in China from a librarian perspective. The paper does not have a deep understanding of the publishing business. Most of the best Chinese academic papers are published in foreign commercial academic journals, which costs Chinese writers their intellectual property rights since their rights of communication through the internet is then owned by foreign publishers. As a result, most products based on public investment in China become a foreign publisher's exclusive property, earning exclusive profit for them rather than for China. This situation exists not only in China, but also in other developing countries. This “problem” is worth researching.

A comprehensive introduction to the current state of OA in China will be useful to those who are unfamiliar with, or seek deeper knowledge of, the Chinese situation. The constructive suggestions to be offered should be useful to Chinese administrators, OA publishers and librarians.

This may be the first research paper describing the status of OA in China in summary and in detail, with an analysis of the problems in OA development and offering recommendations.

This study aims to examine the effect of education for sustainable development (ESD) on students’ sustainability behaviors in Chinese higher education institutions (HEIs), aiming to identify the educational enhancement pathways and influencing factors based on students’ perspectives.

Data were collected from students in Chinese HEIs using an online survey. Structural equation modeling is used to analyze the data and verify the pathways for enhancing students’ sustainability behaviors through ESD in HEIs. The effects of students’ demographic characteristics, majors, and other factors are also examined.

ESD in Chinese HEIs promotes students’ sustainability cognition and behaviors. Students’ sustainability cognition plays a mediating role and has a positive effect on enhancing sustainability behaviors through education. In the influence pathway, the behavioral attitudes of students majoring in humanities and social sciences with high monthly expenditures are more significant for promoting sustainable social participation. Meanwhile, gender and educational level are not significant moderating factors.

Factors such as cognition are subjective and difficult to measure. The sample’s representativeness warrants further consideration, and there is a lack of time-series change data. Nevertheless, this attempt to examine the mechanism of ESD from students’ perspectives can help assess ESD in HEIs more rationally and make the improvement paths more efficient.

This study offers evidence to support ESD-related decision-making in Chinese HEIs. It is suggested that HEIs continue to strengthen ESD, focusing on influencing behavior by enhancing students’ sustainability cognition. Pedagogical approaches should be adjusted based on students’ spending habits and majors to maximize educational outcomes and support China’s sustainability ambitions.

Based on the perspective of Chinese HEI students, this study makes observations about ESD in Chinese HEIs, focuses on the interaction between the sustainability cognition and behaviors of students, and expands the discussion of pathways for HEIs to promote students’ sustainability cognition and behaviors.

Additive manufacturing (AM) can achieve significant weight savings with only minor compromises in strength if high-performance wrought aluminum alloys are used as feedstock. Despite the advantages in strength that aluminum alloys (AA) 6061 offer, they cannot be manufactured via printing because of hot cracking and other solidification problems. The purpose of this study is to achieve high-quality printing of AA6061 with nanotreated wires.

Nanotreating was used to modify the AA6061 alloy composition by adding a small fraction of nanoparticles to enhance the alloy’s manufacturability and resultant properties. Wire arc additive manufacturing (WAAM) was used to print the nanotreated AA6061 wire feedstock. The microstructure of the printed AA6061 was characterized by X-ray crystallography, optical microscopy, scanning electron microscopy and energy dispersive spectroscopy mapping. The microhardness profile, tensile behavior and fracture surface were analyzed.

This work successfully used WAAM to print nanotreated AA 6061 components. The resulting AA6061 parts were crack-free, with exceptional grain morphology and superior mechanical properties. Owing to the excellent size control capabilities of nanoparticles, a homogeneous distribution of small grains was maintained in all deposited layers, even during repeated thermal cycles.

Previous studies have not successfully printed AA6061 using WAAM. Conventional WAAM products exhibit anisotropic mechanical properties. The nanotreated AA6061 was successfully printed to achieve homogeneous microhardness and isotropic tensile properties. The promising results of this study reflect the great potential of nanotech metallurgy as applied to the WAAM process.

Students will be able to analyse competitive situations of the focal firm in the platform market, factors that make the focal firm become dominant in the sharing economy through the technology platform and the focal firm’s motives and growth strategies through mergers and acquisitions and overseas expansion, as well as give recommendations on the focal firm’s strategies to move forward to achieve and maintain its competitive position in the platform market.

On 4^th April, 2018, Meituan-Dianping (Meituan), a Chinese group-buying website for consumer products and retail services acquired Mobike, a Chinese dockless bike-sharing platform for US$2.7bn. Mobike had raised several rounds of funding for its large investments and operations in this highly competitive and cash-intensive industry. However, it was still struggling to survive and make a profit in the Chinese and overseas markets. It was believed that the merger between the companies was the only viable alternative. Had Meituan’s Chief Executive Officer made the right decision in acquiring Mobike? After Mobike became an integral part of Meituan, what should be done to turn this technology platform to be profitable in the Chinese and overseas market?

The case is intended for senior undergraduate or graduate-level courses in business schools.

Teaching Notes are available for educators only.

CSS 11: Strategy.