Jun Li Bücher

In dieser Arbeit wurde ein lernende, populationsenkodierte Armkontrollssystem entwickelt. Verschiedene Vorhaltensraüme in diesem System werden mit unterschiedlichen Neuronverteilungen ausgelegt und jeder Raum konnte durch die rezeptiven Felder aller Neuronen abgedeckt werden. Der Arm im System kann selbstständig eine zielgerichtete Bewegung ausführen, nachdem ein nicht überwachter Lernprozess ausgeführt wurde. Mit verschiedenen Parametereinstellungen wurden die Qualität der Bewegungen in unterschiedlichen Parameter untersucht. Dadurch konnten die Beeinflussung der verschiedenen Parameter analysieren. Die Untersuchungen können in zwei Phasen unterteilt werden: die nicht überwachte Lernphase und die Ausführungsphase der zielgerichtete Bewegung nach dem Lernen. Im Lernprozess wurde die Qualität sowie Verteilung des gespeicherten Bewegungsvektors durch die nicht zielgerichteten zufälligen Bewegungen überprüft. Die Qualität dieser Bewegungsvektoren kann mit Hilfe von Zwischenwinkel zwischen optimalem und real gespeichertem Bewegungsvektoren oder Trainingsgrad des Bewegungsvektors bewertet werden. Im Ausführungsprozess der zielgerichteten Bewegung kann die Leistung der Bewegungen überprüft werden. Die Leistungen einer Bewegung werden durch die Erreichbarkeit, durch verschiedene Effizienzmaße der Bewegung und durch die Distanz zwischen dem erreichten Endpunkt der Hand nach der Bewegung und dem vordefinierten Zielpunkt bewertet. Aufgrund der oben genannten Untersuchungsmethoden wurde der Einfluss verschiedenen Parameter analysiert. Diese Parameter enthalten verschiedenen neuronalen Verteilungen im Arm-stellungsraum, verschieden neuronal Anzahl, verschiedene Trainingsmethoden sowie Schrittlänge der zufälligen Bewegung im Lernprozess und verschiedener Anfangspunkte des Lernens. Gleichzeitig wurde auch die Qualität der ausgeführten Bewegung in verschiedene Zone des Arm-stellungsraums verglichen.

Focusing on the early formation of Chinese civilization from 1766 to 221 BC, the book offers a new perspective on its creation and transformation. It highlights key social and political organizations of the time, challenging traditional views by emphasizing the unique dynamism of economic development in ancient China. The exploration of these foundational features reveals their lasting influence on the trajectory of Chinese history.

China Business focuses on the realities of business operations in China, and provides information about the business environment and relative rules and regulations. It also constitutes a valuable source of reference material on China¡¯s economic development trends. For the businesspeople¡¯s convenience, the book comes with a CD-ROM detailing all major laws and regulations on trade and investment in China, and provides links to the websites of government departments, various trades, organs of commerce and the mass media.

Focusing on kinetic theory, this book offers an in-depth exploration of flow problems across molecular, hydrodynamic, and Darcy scales. It presents a variety of numerical algorithms designed to address the same Boltzmann-like equation, tailored to different applications where transport mechanisms vary significantly. The author’s approach bridges the gap between theoretical concepts and practical applications, making it a valuable resource for understanding complex fluid dynamics.

The study explores China's outward foreign direct investment (OFDI) by distinguishing between push and pull factors. Utilizing panel OLS for pull factors and co-integration methods for push factors, it finds that Asian exports of fundamental products and GDP per person employed positively correlate with OFDI, while regulatory quality negatively impacts it. Key push factors include positive influences from foreign reserves, exchange rates, patents, and wages, while exports and savings rates show negative associations. The analysis highlights the significant role of Chinese policies in boosting OFDI since 2000.

Focusing on the early formation of Chinese civilization from 1766 to 221 BC, this book offers a new perspective on its creation and transformation. It highlights key features of social and political organizations during this era and challenges traditional views by asserting that economic development in ancient China possessed its own inherent dynamism, significantly influencing the trajectory of Chinese history.

Focusing on 12 Chinese universities, the book provides insights from students, faculty, and leaders, highlighting how these institutions have adapted to the demands of mass higher education. It explores the diverse experiences and perspectives within these universities, culminating in a discussion of the evolving Chinese university model in the final chapter.

Focusing on China's teacher education policy since the 1990s, this volume employs a case study method and a Multiperspectival Approach to reveal the intricate implementation processes at the institutional level. It examines the sociopolitical and cultural challenges posed by globalization, highlights national initiatives for developing qualified teachers, and analyzes new teacher identities amid rising professionalism. The findings from a provincial normal university illustrate the complexities of policy flow and institutional barriers, leading to recommendations and a proposed Zhong-Yong Model for broader educational policy applications.

This book introduces readers to the latest advances in hydrogel biomaterials, mainly focusing on the emerging areas of synthetic and biopolymer hydrogels formed through specially designed chemical or physical crosslinking, and the cyclodextrin-based host-guest supramolecular self-assembly, for cell encapsulation, cell expansion, cell differentiation and tissue repair, stem cell culture, and cellular therapy and drug delivery applications. The book was written by experts at the forefront of these interdisciplinary areas and is intended for all researchers working in the fields of biomaterials and biomedical engineering, as well as medical professions. Jun Li is a Professor at the Department of Biomedical Engineering, National University of Singapore, Singapore. Yoshihito Osada is a Professor at RIKEN Advanced Science Institute, Japan. Justin Cooper-White is a Professor at the Australian Institute for Bioengineering and Nanotechnology, University of Queensland, Australia.

The aim of this dissertation is to explore how humans integrate the information from different movement contexts (e. g. the non-target object in the workspace, human bimanual movement and the joint action) in order to plan and execute a prehensile movement. It deals with the following questions. First, which strategy do humans use to adjust to an increase in obstacle height and how do humans use the wrist joint to avoid a conflict between the body and an obstacle? Second, how do humans adjust their kinematics, when they switch from unimanual movement to bimanual movement and how do humans control the joints of their arms when they increase speed in a bimanual movement? Third, how do humans predict and understand another person’s action in a sequential transferring task and how do humans integrate the common task goal and the individual task goal? Does movement speed affect the integration of both goals? The experimental results offer some possible explanations for human behaviour in the different movement contexts and suggest further studies of the underlying neuronal mechanisms. The analysis of the data can also be used to establish some intelligent algorithms that could improve robotic control.