Miracle-dz/UniFAR-FTUs huggingface dataset:
Ultra-Low-Power Event-Driven Radio Design

The emerging field of internet of things promises mankind an enhanced life quality, produc-tivity and security. One critical technology enabler is ubiquitous and unobtrusive wireless connectivity activated by ambient events and operated with little human intervention for con-figuration and maintenance. Commercial off-the-shelf radio devices cannot achieve the desired performance, reliability and ultra-low power consumption around 100µW at the same time. In this work, research is carried out on the design and implementation of an ultra-low-power radio for generic wireless event-driven applications including healthcare, information and enter-tainment, industrial and home automation, as well as environment monitoring. To fulfill the stringent power budget, the envelope detection and the direct-modulation are the architectures of choice for receiver and transmitter front-ends, respectively. However, such radios suffer from poor sensitivity and frequency selectivity, and thus are unable to op-erate reliably across the desired link distance or in the presence of interference. This work investigated the root causes of insufficient sensitivity and selectivity in envelope detection receivers, and proposed design guidelines to optimize their performance. Furthermore, two novel envelope detection schemes have been proposed. The synchronized-switching technique improves the sensitivity by suppressing DC offset and 1/f noise in the receiver, while the 2-tone signaling technique enables in-band interference rejection which was not possible in prior arts. Prototype circuits have been built to verify the proposed techniques. On a 90nm CMOS technology, a transmitter and a receiver front-end are designed to benchmark the performance of 2-tone envelope detection in practice. The digital-IF, direct-modulation transmitter carries out the 2-tone IF-PSK modulation with -6dBm output power while consuming 893µW. The 2-tone envelope detection receiver realized up to 282 times improvement in interference re-jection while dissipating between 63. 5µW and 121µW. A link budget of over 80dB is realized by this transceiver pair, which translates to a link span up to 30 meters in indoor environments and 100 meters outdoors. By following a systematic approach, devising innovative architectures, and optimizing circuit performance, this work has confirmed the feasibility of ultra-low-power, autonomous and robust event-driven radios in low-cost and commercially available CMOS technologies.
The founder's vision & its influence on the outcomes of high tech start -up companies

This study examined the impact of sustaining, changing or disregarding the founder's vision on the outcomes of Venture Funded High Tech Start-up Companies (VFSCs). The motivation for the study was to provide knowledge that would enable Venture Capital (VC) investors to enhance their investment portfolio success rates. A model (VFSC Success Failure continuum) was developed and introduced to provide a framework for the study. This model broke the universe of VFSC companies into two groups; those that have had their fates decided, namely Super-successes, Successes and Failures and those whose fate remained to be decided, namely Projected Successes and Living Dead. A theory was proposed that suggested sustaining the founder's vision through-out the pre1PO period enhanced the probability of VFSC success, and that changing or disregarding the founder's vision led to Living Dead andlor Failurefirm outcomes. '<". 1 he study was segmented into three phases: (a) a Pilot Study established survey instrument content validity and test-retest reliability; (b) an electronic survey instrument captured the data required to examine the study's theory and research questions; and (c) a Non-response Bias Test established that no statistically significant difference existed between the survey and non-respondent sample data sets. The study investigated five primary research questions related to sustaining the founder's vision, vision change and disregarding the (founder's) vision and their influence on firm outcomes. Twenty-one secondary research questions examined contextual variables and current industry succesdfailure rates. The significant outcomes from this study are (a) vision change classifications, vision change, vision disregard and sustaining the (founder's) vision, had limited, but not
Design of gas turbine axial compressors for fuel flexibility

Current gas turbine technology for power generation is generally optimised for natural gas. On the basis of current instabilities in natural gas price and supply, the use of alternative fuels, such as syngas, has recently gained high interest. Due to the different thermodynamic properties of syngas compared to natural gas the behaviour of existing gas turbine components may significantly change. From practical and economic points of view, it is generally considered that in order to meet the new fuel properties, the main effort should be put on the adaptation of conventional gas turbines in integrated gasification combined cycle (IGCC) plants rather than producing a new generation of gas turbine designs from scratch. In addition to the requirement of new combustion technologies, main critical issues are represented by the reduction of compressor surge margin and turbine blade overheating. Solutions might include thermodynamic cycle as well as turbine geometry modifications. The latter would be preferred in terms of power plant performance. The main aim of this thesis is to explore suitable solutions to be applied to gas turbine compressors in order to accommodate syngas combustion. Among others, the use of variable stator vanes (VSVs) and blade radial stacking line modifications are considered. These are investigated on reference geometries available in the public domain. A baseline compressor geometry representative of a conventional heavy-duty gas turbine fueled with natural gas is generated and modified according to the understating gained during this study. The re-designed machine is a result of the application of stator vanes re-staggering in the front stages and blade sweep in the rear stages in order to cope with compressor air supply control and critical flow separation regions respectively. The obtained results show that efficient and stable operation during power modulation can be achieved, while reducing the need of other modifications to the combined cycle plant. It was therefore concluded that the proposed option can be considered a viable option to satisfy some important technical and economic constraints imposed by the integration of an existing gas turbine within an IGCC plant.
Genesis and Evolution of the United States Air Force Academy's Officer Development System

Abstract : The U.S. Air Force Academy has begun implementing a new system for better preparing cadets to be effective leaders of character; it is called the Officer Development System (ODS). This initiative was a result of an integrative Tiger Team commissioned by USAFA senior leadership in September 2003 to design and implement a deliberate, overarching leader development system. The new system is a four-year, holistic leadership process focused on understanding, appreciating, and acquiring character-based officership. ODS heavily emphasizes the Air Force core values (Integrity, Service, Excellence), identifies officer attributes (Warrior Spirit, Professional, Leader of Character, Servant of the Nation), and aligns with Air Force s Force Development initiative* and associated doctrine. ODS integrated approach is based upon education, training, and experiences that provide cadets with increased responsibility as they progress through their four years at the Academy. This increased responsibility applies to each individual cadet for his or her own development; however, everyone is just as closely tied to their subordinates and peers development as well. ODS rests heavily on teamwork and positive motivation methods. It adheres to established standards through continuous improvement in obtaining institutionally agreed upon competencies that will better enable this next generation of leaders of character to meet Air Force requirements.
Protective Effect of Vitamin E Against Hepato-nephrotoxic Oxidative Stress Induced by Isoprinosine Toxicity

Isoprinosine was approved that it had hepatic and renal disorder in rabbits. This review covers key studies of protective effects of vitamin E (18.7 mg/kg P. O.) against isoprinosine (163.3 mg/kg P. O.) toxicity for 21 days when vitamin E was co-administered with isoprinosine. Blood samples were collected and the protective effect of vitamin E onbiochemical constituents in serum such as liver injury biomarkers as serum ALT, AST and ALP, kidney injury biomarker as serum creatinine and urea and oxidative stress biomarkers such as serum SOD, GPX and MDA. The obtained results indicated that vitamin E has protection effects through prohibiting the raise in liver and kidney injury biomarkers and oxidative stress biomarkers.
UV-Absorbing Gallic Acid Derivatives as Functional Reinforcing Fillers in Poly(Vinyl Chloride) Films

The poly(vinyl chloride) PVC was photostabilized by gallic acid derivatives (0.5% by weight). The photodecomposition rate constant was reduced significantly in the existence of gallic acid derivatives along with PVC (blank). R1 compound was found to be the most effective stabilizer in photostabilization of PVC. The photodecomposition rate constant for PVC films containing R1 was found to be 1×〖10〗^(-4) compared to 8×〖10〗^(-4) sec-1 for PVC films in the absence of any additives. Different mechanisms of photostability for PVC films that involve gallic acid derivatives have been proposed.
Plan validation using DES and agent-based simulation

Abstract : Military plan validation is typically a long-drawn process requiring planners to validate their plans using anticipated scenarios or through military exercises. While military exercises provide realistic simulation of the plan, it is often the most expensive way of validating a plan. On the other hand, although using anticipated scenarios is relatively cheaper, the robustness of the validated plans is dependent on the extensiveness of the scenarios that they are validated against. This thesis explores the possibility of using a multi-agent system (MAS) to generate the aggressor's air strike plans, which could be coupled with a low resolution Discrete Event Simulation (DES) based air defense simulator to augment human planners in their plans validation. A MAS-based strike plan generator was built based on the tactics described in air strike doctrines. A DES-based air defense simulator was also built to provide an agent environment by modeling the behavior of air defense assets and their interactions with the aggressor ssssssssss fighters. The resulting system demonstrates the ability to validate air defense plans using MAS generated strike plans and a low resolution DES-based simulator. It also provides a platform to assist air defense planners in foreseeing the action, reaction and counteraction dynamics of their air defense plan against a range of possible strike plans.
Unusual Metastases to Diaphragm and Spleen from Adenocarcinoma of Lung Detected by 18F-FDG PET/CT Imaging: A Case Report

Globally, carcinoma of lung is the predominant cause of cancer deathamong both men and women. While hematogenous spread from primarylung cancer to multiple other organs is frequently reported, metastases ofmalignant tumors to diaphragm and spleen are rare. Nowadays, Positronemission tomography (PET) with 18 F- fluorodeoxyglucose (FDG) hasemerged in such a way that it has become an effective imaging technology for the evaluation of different carcinomas, particularly for cancerstaging and follow up after therapy. PET scan is able to provide metabolicinformation. In this case, we present an attractive unified PET/CT scanimage in a patient with lung carcinoma having unusual diaphragm andsplenic metastases. So, PET/CT imaging could strongly identified rareand unusual metastatic sites of cancer and added more appropriate stagingin patient with carcinoma of lung.
Distributed Data Storage on CubeSat Clusters

The CubeSat Distributed File System (CDFS) is built for storing large files on small satellite clusters in a distributed fashion to support distributed processing and communication. While satisfying the goals of scalability, reliability and performance, CDFS is designed for CubeSat clusters which communicate using wireless mediu m and have severe power and bandwidth constraints. CDFS has successfully met the scalability, performance and reliability goals while adhering to the constraints posed by harsh environment and resource constrained nodes. It is being used as a storage layer for distributed processing and distributed communicat ion on CubeSat clusters. In this paper, we present the system architecture, file system design, several optimizat ions and report several performance measurements fro m our simu lations.
A Comparison of Rewarming Methods in Mildly Hypothermic Individuals

Abstract : The purpose of this study was to compare the rewarming effectiveness of a radio frequency coil (13.56MHz) at a specific absorption rate (SAR) of 2.5 W/kg (RF) with warm water immersion (40 C) (WW) and an insulated mummy-type rewarming sack (TS). Four male subjects, ages 24-35, were immersed in 10 C water for up to 90 minutes or until their rectal temperatures (TRE) decreased to 35 C. Each subject had 3 trials in which they were immersed. After each immersion, rewarming was accomplished with either RF, WW, or TS, so that each subject was rewarmed once with each method. Comparisons of the three rewarming methods were based on the rate of increase of TRE during rewarming (delta TRE/T), TRE 60 minutes after the start of rewarming (TRE 60), the time interval measured from extraction from the water to the end of afterdrop deltat), and the magnitude of any observed Tre afterdrop (deltaTre). WW had significantly greater deltaTRE/t and TRE60 than either RF or TS (p<0.03) and a smaller deltat than TS (p<0.05). TS had significantly greater delta TRE than either WW or RF (p<0.05). No significant differences in deltaTre/t, Tre60, or delta t were observed between TS and RF. The results of this study indicate that for mildly hypothermic individuals, rewarming with RF at a SAR of 2.5 W/kg is roughly equivalent to TS and less effective than WW.
Identification, Diagnosis, and Control of a Flexible Robot Arm

The most important factors in manufacturing are quality, cost, and productivity. The trend is towards lighter robots with increased mechanical flexibilities, and therefore there is a need to include the flexibilities in the robot models to obtain good performance of the robot. The core theme in this thesis is modeling and identification of the physical parameters of an ABB IRB 1400 industrial robot. The approximation made is that the robot arm can be described using a finite number of masses connected by springs and dampers. It has been found that a three-mass model gives a reasonably good description of the robot when moving around axis one. The physical parameters of this model are identified using off-line and on-line algorithms. The algorithms are based on prediction error methods. For the on-line identication the Matlab System Identifiation Toolbox is used. For the on-line identication the algorithm used is a modified version of a recursive prediction error method to cope with continuous time models. The models are then used in diagnosis and control. Two ways of doing diagnosis using on-line identification are investigated. Estimating some of the physical parameters of the robot arm recursively makes it possible to monitor important aspects of the system such as friction and load. LQG control of the flexible robot arm is also studied with the aim of good disturbance rejection. Aspects that have been studied are unstable regulators and the use of accelerometers.
Background oriented stereoscopic schlieren (BOSS) for full-scale helicopter vortex characterization

In this paper we present the application of a novel schlieren technique for two different helicopter tests. The optical method is referred to as Background Oriented Schlieren (BOS) in the following. Additionally the differences between BOS and an extension of it, the reference-free stereoscopic arrangement (BOSS in the following), will be discussed. Experimental studies have been carried out to investigate details of the vortex generation next to the blade tips of two different helicopters, an Eurocopter BK117 and an Sikorsky UH60. The background oriented techniques seem to well complete other optical techniques like shadowgraphy or focussing schlieren methods and yield additional quantitative information. Furthermore, they allow - in contrast to laser based techniques - to study the Reynolds-number depending vortex development in full-scale flight tests more easily.
ZeroCostDL4Mic: an open platform to simplify access and use of Deep-Learning in Microscopy

MRC-Laboratory for Molecular Cell Biology, University College London, London, UK The Francis Crick Institute, London, UK Turku Bioscience Centre, University of Turku and Åbo Akademi University, Turku, Finland Faculty of Science and Engineering, Cell Biology, Åbo Akademi University, Turku, Finland Institute of Physical and Theoretical Chemistry, Goethe-University Frankfurt, Frankfurt, Germany Institute of Biomedicine, and MediCity Research Laboratories, University of Turku, Finland Centre for Bacterial Cell Biology, Biosciences Institute, Faculty of Medical Sciences, Newcastle University, UK Chan Zuckerberg Biohub, San Francisco, CA, USA Center for Systems Biology Dresden (CSBD), Dresden, Germany Max Planck Institute for Molecular Cell Biology and Genetics, Dresden, Germany Max Planck Institute for Physics of Complex Systems, Dresden, Germany Equal contributing authors
Recomposing the landscape using structure from motion survey in the village of Korza, Karelia (Russia)

This contribution relates to the experiences of applied research for the construction of three-dimensional models relative to landscape complexes through the use of so-called three-dimensional photogrammetry. Survey expeditions for studying historical architecture are increasingly in demand today and methods for producing metric data able to meet the descriptive requirements of drawings of buildings are constantly evolving. Many programmes have come and gone in recent years in an attempt to generate automatic 3D models to manage the complexity of real space; when the object of the survey is a multi-composition system covering different levels of investigation and scales of representation, the landscape needs to be broken down and recomposed using techniques for the discretization of architectural forms and images.
In search of determinants of time-discounting in monetary choices: Personal characteristics matter only a little

Time-discounting in monetary choices is determined by the aspects related to the reward, contextual factors, and characteristics of a person. In the present study (Ntotal = 1134), we examined how well do personal characteristics (sociodemographic, financial situation, self-control, cognitive abilities, negative experiencing, and trustfulness) predict time-discounting in both hypothetical and real reward scenarios. The results of the regression analyses indicate that the characteristics of a person explain only a small proportion of the variance in time-discounting (R2 ranged from .10 to .19). The only substantive predictors of time-discounting in monetary choices were financial literacy and a general tendency to delay gratification. We conclude that there still is much work to be done in explaining what determines time-discounting, however, we suggest shifting the focus from the personal characteristics to the characteristics of the reward and contextual factors.
Heat Transfer Experiments in the Internal Cooling Passages of a Cooled Radial Turbine Rotor

An experimental study was conducted (1) to experimentally measure, assess and analyze the heat transfer within the internal cooling configuration of a radial turbine rotor blade and (2) to obtain heat transfer data to evaluate and improve computational fluid dynamics (CFD) procedures and turbulent transport models of internal coolant flows. A 1.15 times scale model of the coolant passages within the NASA LERC High Temperature Radial Turbine was designed, fabricated of Lucite and instrumented for transient beat transfer tests using thin film surface thermocouples and liquid crystals to indicate temperatures. Transient heat transfer tests were conducted for Reynolds numbers of one-fourth, one-half, and equal to the operating Reynolds number for the NASA Turbine. Tests were conducted for stationary and rotating conditions with rotation numbers in the range occurring in the NASA Turbine. Results from the experiments showed the heat transfer characteristics within the coolant passage were affected by rotation. In general, the heat transfer increased and decreased on the sides of the straight radial passages with rotation as previously reported from NASA-HOST-sponsored experiments. The heat transfer in the tri-passage axial flow region adjacent to the blade exit was relatively unaffected by rotation. However, the heat transfer on one surface, in the transitional region between the radial inflow passage and axial, constant radius passages, decreased to approximately 20 percent of the values without rotation. Comparisons with previous 3-D numerical studies indicated regions where the heat transfer characteristics agreed and disagreed with the present experiment.
Feature Development Process Harmonization with Lean Development

This Master Thesis was carried out at Volvo Group Trucks Technology (GTT) in Gothenburg in order to map the Feature Development Process which is a central process in the product development. The aim was to identify conflicts and contradictions between the Feature Development Process and related processes at Volvo GTT to suggest solutions of those with Lean as guiding principle. Further a proposed update of the existing Training Material for Feature Leaders was developed. The thesis was initiated by Mr Anders B. Berle Manager of Fuel Efficiency & Deputy Vehicle Productivity and Mr Henrik Lindh Group Manager of Vehicle Dynamics and Brake Testing. The on-going lead time reduction programme in the area of product development at Volvo GTT was the driving target for this project. The thesis was carried out by Karin Dahr and Marie Eliasson during the spring of 2012. The main activities to collect data regarding the current situation of the Feature Leaders work at Volvo GTT were interviews and workshops performed at the company’s Gothenburg and Lyon sites. Further a survey involving the Feature Leaders at all Volvo GTTs sites: Gothenburg, Lyon, Ageo, and Greensboro, was conducted to get measurable values on the identified problem areas. The thesis included a literature study regarding the methodologies in Lean product development. A benchmarking was conducted at three companies in different businesses. The aim was to collect information about how other organizations have improved their way of working and implementing Lean. The result showed that there are several areas in the Feature Leaders work that can be improved. The need for an updated Feature Development Process was considered and suitable changes to it are proposed in this thesis. The suggested improvements and recommendations are based upon the keystones of the Lean thinking investigated in the literature study and in the performed benchmarking. They regard the content in the documented Feature Development Process as well as the way of working in the area of Features and overall operations in Product Development at Volvo GTT.