Progress towards making a global supply of microbial extracellular vesicles,100-times cheaper than a typical biologic

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On the Lipschitz decomposition problem in ordered Banach spaces and its connections to other branches of mathematics

Please read abstract in the article.https://link.springer.com/bookseries/49612020-08-01hj2020Mathematics and Applied Mathematic

Genomic Dissection of Bipolar Disorder and Schizophrenia, Including 28 Subphenotypes

publisher: Elsevier articletitle: Genomic Dissection of Bipolar Disorder and Schizophrenia, Including 28 Subphenotypes journaltitle: Cell articlelink: https://doi.org/10.1016/j.cell.2018.05.046 content_type: article copyright: © 2018 Elsevier Inc

Design of agile two-wheeled robot with machine vision

Mobile two-wheeled self-balancing robots have been built and widely investigated since 2002 by many parties for research, leisure and commercial purposes. This paper details the design and construction of a small autonomous two-wheeled robotic platform. The robot is agile, able to navigate itself in unstructured environment with the aid of multiple on-board sensors, able to overcome small obstacles and has short and long range wireless communication capabilities. One of the highlights is the on-board single camera machine vision module, which help the robot to identify obstacles. It is hoped that this disclosure will assist other researchers working on similar projects to improve their design of such machines

Modeling Of Electromagnetic Wave Propagation In Printed Circuit Board And Related Structures

The objective of this thesis is to develop a systematic framework for modeling electromagnetic wave propagation in a printed circuit board (PCB) assembly and related structures. The PCB assembly contains discrete components (both active and passive), integrated circuits, copper traces, sockets and connectors. Related structures imply this framework can be generalized to environments such as Monolithic Microwave Integrated Circuit (MMIC) and the semiconductor itself. The proposed method-of-choice for approximating a solution to the Maxwell's equations for this environment is the Finite-Difference Time-Domain (FDTD) approach, which was originally proposed by K.S.Yee in 1966 (Yee 1996). The method approximates the differentiation operators of the Maxwell equations with finite difference operators in time and space. This method is suitable for finding the approximate electric and magnetic field in a complex three-dimensional structure in the time domain. This thesis puts forward a collection of algorithms, mathematical tools and a computer program for approximating the Maxwell's equations with a finite-difference counterpart under various conditions encountered in a typical PCB assembly. The author consolidates the results obtained by previous researchers in this area, puts forward a few improvements and also derives new stability theorems suitable for a general PCB model. The stability theorems are intended to check whether the numerical algorithm is "well-behaved" or not. This is important for the FDTD approach, which like many iterative numerical methods, are susceptible to a condition where the solution gradually increases without limit as simulation progresses. The computer program developed in this thesis can be used to simulate various microwave circuits before actual prototyping , thus cutting down the cost and saving valuable time. This project is self-encompassing, it provides the theoretical basis for the method, the details of the implementation on a digital computer and finally the software itsel

On-chip slew-rate control for low-voltage differential signalling (LVDS) driver

A low-voltage differential signaling (LVDS) driver with 3-bit programmable slew-rate control has been designed and fabricated in 0.13um complementary metal oxide semiconductor (CMOS) process. On-chip programmable capacitors allow cost saving compared to external capacitors and fine tuning to driver output slew-rate. This enables system designers with the flexibility to optimize driver slew-rate for wider range of applications. Slew-rate adjustment procedures are simple and yield accurate measurement results which meet the TIA/EIA-644-A standard