Teleportation-Based Quantum Computation, Extended Temperley-Lieb Diagrammatical Approach and Yang--Baxter Equation

This paper focuses on the study of topological features in teleportation-based quantum computation as well as aims at presenting a detailed review on teleportaiton-based quantum computation (Gottesman and Chuang, Nature 402, 390, 1999). In the extended Temperley-Lieb diagrammatical approach, we clearly show that such topological features bring about the fault-tolerant construction of both universal quantum gates and four-partite entangled states more intuitive and simpler. Furthermore, we describe the Yang--Baxter gate by its extended Temperley-Lieb configuration, and then study teleportation-based quantum circuit models using the Yang--Baxter gate. Moreover, we discuss the relationship between the extended Temperley-Lieb diagrammatical approach and the Yang-Baxter gate approach. With these research results, we propose a worthwhile subject, the extended Temperley-Lieb diagrammatical approach, for physicists in quantum information and quantum computation.Comment: Latex, 47 pages, many figure

Quasi-static responses of marine mussel plaques attached to deformable wet substrates under directional tensions

Quantifying the response of marine mussel plaque attachment on wet surfaces remains a significant challenge to a mechanistic understanding of plaque adhesion. Here, we developed a customised microscopy system combined with two-dimensional (2D) in-situ digital image correlation (DIC) to quantify the in-plane deformation of a deformable substrate that interacts with a mussel plaque while under directional tension. By analysing the strain field in the substrate, we gained insight into how in-plane traction forces are transmitted from the mussel plaque to the underlying substrate. Finite element (FE) models were developed to assist the interpretation of the experimental measurement. Our study revealed a synergistic effect of pulling angle and substrate stiffness on plaque detachment, with mussel plaques anchoring to a 'stiff' substrate at a smaller pulling angle having mechanical advantages with higher load-bearing capacity and less plaque deformation. We identified two distinct failure modes, i.e., shear traction-governed failure (STGF) mode and normal traction-governed failure (NTGF). It was found that increasing the substrate stiffness or reducing the pulling angle resulted in a failure mode change from NTGF to STGF. Our findings offer new insights into the mechanistic understanding of plaque and substrate interaction, which provides a general plaque-inspired strategy for wet adhesion.Comment: 19 page

The role of tocotrienol in protecting against metabolic diseases

Obesity is a major risk factor for diabetes, and these two metabolic conditions cause significant healthcare burden worldwide. Chronic inflammation and increased oxidative stress due to exposure of cells to excess nutrients in obesity may trigger insulin resistance and pancreatic β- cell dysfunction. Tocotrienol, as a functional food component with anti-inflammatory, antioxidant, and cell signaling-mediating effects, may be a potential agent to complement the current management of obesity and diabetes. The review aimed to summarize the current evidence on the anti-obesity and antidiabetic effects of tocotrienol. Previous studies showed that tocotrienol could suppress adipogenesis and, subsequently, reduce body weight and fat mass in animals. This was achieved by regulating pathways of lipid metabolism and fatty acid biosynthesis. It could also reduce the expression of transcription factors regulating adipogenesis and increase apoptosis of adipocytes. In diabetic models, tocotrienol was shown to improve glucose homeostasis. Activation of peroxisome proliferator-activated receptors was suggested to be responsible for these effects. Tocotrienol also prevented multiple systemic complications due to obesity and diabetes in animal models through suppression of inflammation and oxidative stress. Several clinical trials have been conducted to validate the antidiabetic of tocotrienol, but the results were heterogeneous. There is no evidence showing the anti-obesity effects of tocotrienol in humans. Considering the limitations of the current studies, tocotrienol has the potential to be a functional food component to aid in the management of patients with obesity and diabetes. Keywords: adipose; diabetes; insulin resistance; metabolic syndrome; obesity; overweight; vitamin

Exploring the current status and future opportunities of blockchain technology adoption and application in supply chain management

This study comprises a systematic literature review that offers a thorough analysis of the present state-of-the-art knowledge regarding the adoption and application of blockchain technology within the context of supply chain management. Based on an extensive review of 133 articles from highly-regarded journals, we developed a framework where we highlight the integration of the transition from blockchain technology adoption to its application. This transition process is explained by two theories: the Technology Acceptance Model and the Diffusion of Innovation Theory. In the adoption phase, we identified nine internal drivers and seven external drivers, together with comprehensive barriers. Our framework also integrates and examines the blockchain technology application stage, focusing not only the current development of benefits of blockchain technology implementation but also the challenges that impede the successful implementation of blockchain technology in supply chain management. The future development prospects are also highlighted which include standardization, platform development, regulation system development, cost reduction, and talent cultivation. These future developments were critical yet were missing in the current academic literature. By providing an in-depth analysis of these challenges, our study can assist supply chain practitioners in making informed decisions about blockchain-enabled supply chain management initiatives

The SH2/SH3 Adaptor Protein Dock Interacts with the Ste20-like Kinase Misshapen in Controlling Growth Cone Motility

AbstractRecent studies suggest that the SH2/SH3 adaptor Dock/Nck transduces tyrosine phosphorylation signals to the actin cytoskeleton in regulating growth cone motility. The signaling cascade linking the action of Dock/Nck to the reorganization of cytoskeleton is poorly understood. We now demonstrate that Dock interacts with the Ste20-like kinase Misshapen (Msn) in the Drosophila photoreceptor (R cell) growth cones. Loss of msn causes a failure of growth cones to stop at the target, a phenotype similar to loss of dock, whereas overexpression of msn induces pretarget growth cone termination. Physical and genetic interactions between Msn and Dock indicate a role for Msn in the Dock signaling pathway. We propose that Msn functions as a key controller of growth cone cytoskeleton in response to Dock-mediated signals

A “Jellyfish Engineering Experiment” for purifying water quality in large lakes

Article信州大学理学部附属諏訪臨湖実験所報告 9: 149-153(1995)departmental bulletin pape

Electromagnetic performance of flux-switching permanent magnet brushless machines

Flux-switching permanent magnet (PM) brushless machines have both the permanent magnets and the excitation coils in the stator. Compared with conventional PM brushless machines, they offer particular advantages, such as a simple and robust rotor topology, a high torque density, due to the bipolar flux-linkage, and a high magnetic loading, by utilizing magnet flux focusing, and generally, an essentially sinusoidal phase back-emf waveform, which make them good candidates for brushless AC drives. The magnets are in an environment in which there is greater scope to manage their thermal environment, since more precise and higher heat flux cooling methods can be applied to the stator than the rotor, and the influence o f heat-soak from other components can be similarly more readily managed. In this thesis, the electromagnetic performance of 3-phase flux-switching PM brushless AC machines is investigated. Systematic design optimization has been carried out for maximum torque density by finite element analysis, with due account for the influence of size (scaling) and 3-D end-effects. An analytical approach to predicting the performance of flux-switching PM machines is developed based on a non-linear adaptive lumped parameter magnetic circuit model, in order to enable the electromagnetic performance, e.g. airgap field distribution, phase flux-linkage and back-emf waveforms, stator winding inductance and torque, of flux-switching PM machines to be predicted both accurately and quickly. The optimal split ratio for both conventional and flux-switching PM machines is derived analytically and validated by numerical analysis and experimentally. For conventional PM machines, the influence o f brushless DC and AC operational modes, overlapping and non-overlapping winding dispositions, the tooth-tip height and the end-winding is investigated, while for flux-switching PM machines, the influence o f the end-winding, and the magnetic and electrical loadings is studied. The losses in flux-switching PM machines, viz. the copper loss, the iron loss, and the eddy current loss in the frame and the permanent magnets, are also investigated in detail. In addition, the influence o f flux-weakening operation and methods for reducing the losses are studied. All the predicted results are validated experimentally