Miracle-dz/UniFAR-FTUs huggingface dataset:
CONCEPTUAL DESIGN OF THE ANALOG RECEIVER FOR SKA

The receiver system of a radio telescope uses a cascade of building blocks like amplifiers, attenuators, mixers and filters, to process the very weak astronomical signal. This processing makes the signal compatible for further processing in the digital back-end. The typical gain required in such a scheme is around 80 dB. The conceptual design of the system involves distributing the gain among various blocks while ensuring that overall system specifications like noise figure, the ratio of the desired signal component to unavoidable spurious products and radio frequent interference handling capability, are satisfactorily met. A spreadsheet-based approach, developed for the conceptual design of the receiver for the Square Kilometer Array (SKA), is presented. The results for a possible configuration from the antenna elements to the baseband processor is discussed. The scheme is planned to be implemented by means of the so called THousand Element Array, which is the next phase in the series of experimental projects at NFRA leading towards SKA.
Models of Motor Control and Performance

Modern models of motor control and performance provide significant advances over the tried and true Fitts' Law on which Human Factors professionals still depend. However, the topic of motor control and performance is complex and the issues surrounding almost every aspect of the topic at times seem confusing or confused. To cut through this confusion, this symposium has assembled five researchers who represent different constituencies in the development and use of motor models. An overview will be provided of cognitive models of motor control as well as biomechanical and neural models. Unfortunately, the most modern models of motor movement have not been integrated into cognitive architectures such as ACT-R and EPIC. The Symposium will include a discussion of the obstacles to and advantages of such integration. Complex models may thrill the heart of the specialist with the subtleties that they embody, but may be difficult for the practitioner to use. An important question that will be posed and discussed is how simple can motor modeling be and still be useful?
NREL airfoil families for HAWTs

The development of special-purpose airfoils for horizontal-axis wind turbines (HAWTs) began in 1984 as a joint effort between the National Renewable Energy Laboratory (NREL), formerly the Solar Energy Research Institute (SERI), and Airfoils, Incorporated. Since that time seven airfoil families have been designed for various size rotors using the Eppler Airfoil Design and Analysis Code. A general performance requirement of the new airfoil families is that they exhibit a maximum lift coefficient (c{sub l,max}) which is relatively insensitive to roughness effects. The airfoil families address the needs of stall-regulated, variable-pitch, and variable-rpm wind turbines. For stall-regulated rotors, better peak-power control is achieved through the design of tip airfoils that restrain the maximum lift coefficient. Restrained maximum lift coefficient allows the use of more swept disc area for a given generator size. Also, for stall-regulated rotors, tip airfoils with high thickness are used to accommodate overspeed control devices. For variable-pitch and variable-rpm rotors, tip airfoils having a high maximum lift coefficient lend themselves to lightweight blades with low solidity. Tip airfoils having low thickness result in less drag for blades having full-span pitch control. Annual energy improvements from the NREL airfoil families are projected to be 23% to 35% for stall-regulatedmore » turbines, 8% to 20% for variable-pitch turbines, and 8% to 10% for variable-rpm turbines. The improvement for stall-regulated turbines has been verified in field tests. « less
Downtime in American Manufacturing Industry: 1870 and 1880

Using unpublished manuscript census data for 1869/70 and 1879/80, we estimate that manufacturing establishments in the mid/late nineteenth century averaged about 10 months of fulltime operation per year; somewhat longer in 1880 fractionally less in 1870. Months of operation, however, varied greatly by industry and systematically by region and size of establishment, with establishments in the South working fewer months and larger establishments working more months. This evidence in turn has broad implications for efforts to measure productivity and for our interpretation of levels and trends in manufacturing profitability.
LIMITATION OF AGRICULTURAL GROUNDWATER USES IN BEAUCE (FRANCE): WHAT ARE THE IMPACTS ON FARMS AND ON THE FOOD‐PROCESSING SECTOR?

Many farmers, and the large set of downstream operators who depend on their farm products, have become dependent on groundwater resources, which are declining in many parts of the world. Farmers have to reduce water consumption by growing crops with lower water requirements, or apply optimal irrigation strategies. The strategies they choose can have major consequences for downstream operators and agro‐industries.
Time, Space and Technology in the Working-Home: An Unsettled Nexus

The research reported here draws upon four homes in Melbourne, Australia, where variable practices and strategies in the use of information and communication technologies are adopted in negotiating the temporal and spatial dynamics of the working-home. Informed by theories from Science and Technology Studies, we argue that these strategies arise in concernful relation with others — both human and non-human — that enable and constrain the possibilities for action.
How Legislative and Electoral Arrangements Effect Public Policy TITLE CHANGED TO: Who Gets Legislation Passed in a Marginal Legislature, How, and What Types of Legislation Is It? A Study of the Honduran Congress

This article begins to answer the questions of who gets legislation passed in a marginal legislature, how, and what types of legislation is it? As defined by Mezey (1979) a marginal legislature is one with modest policy-making power and which has little support from political elites. The common assumption in Latin American politics is that assemblies are marginal and generally serve as rubber-stamps for the policies of the executive. We use the case of the Honduran Congress in the third wave of democracy to begin to empirically test these assumptions. As expected, we find that the executive sponsors most of the bills that get passed into law. However, deputies also sponsor significant numbers of national-level bills and decrees. In addition we find that deputies do not use their position in the legislature to pass particularistic and local-level decrees that could enhance their local patron or caudillo status. We also find some evidence that rules internal to the legislature can impact the chances of a bill being passed into law, and the speed with which decrees are passed.
Controlling the redistribution of BGP routes

This document proposes the redistribution extended community. This new extended community allows a router to influence how a specific route should be redistributed towards a specified set of eBGP speakers. Several types of redistribution communities are proposed. The first type may be used to indicate that a specific route should not be announced over a specified set of eBGP sessions. The second type may be used to indicate that the attached route should only be announced with the NO_EXPORT community over the specified set of eBGP sessions and the third type may be used to indicate that the attached route should be prepended n times when announced over a specified set of eBGP sessions.
The ontology of a supply chain model based on IDEF5 and Ontolingua

Supply chain management realises the concept of global logistic management, and the supply chain model is the building block for supply chain management. Ontology, which increases knowledge sharing and eases communication between every entity, is the foundation of knowledge management. This paper develops the ontology of a supply chain model that can be seen as fundamental research of knowledge management in a supply chain study. After reviewing related studies of ontology and supply chain model, the ontology of a supply chain model is developed by using the IDEF5 based ontology language and the Ontolingua editor. Two models based on IDEF5 and Ontolingua ontologies are compared to show that the two totally different styles do not affect its original nature.
Characterization of Fire Induced Flow Transport Along Ceilings Using Salt-Water Modeling

Title of Document: CHARACTERIZATION OF FIRE INDUCED FLOW TRANSPORT ALONG CEILINGS USING SALT-WATER MODELING Xiaobo Yao, Doctor of Philosophy, 2006 Directed By: Assistant Professor André W. Marshall, Department of Fire Protection Engineering This research provides a detailed analysis of turbulent mixing and heat transfer in canonical fire plume configurations by using a quantitative salt-water modeling technique. The methodology of quantitative salt-water modeling builds on the analogy between salt-water flow and fire induced flow, which has been successfully used in the qualitative analysis of fires. Non-intrusive laser diagnostics, Planar Laser Induced Fluorescence (PLIF) and Laser Doppler Velocimetry (LDV), have been implemented to measure the dimensionless density difference and velocity in salt-water plumes. In the implementation of the PLIF technique, the salt-water concentration is measured through tracking a fluorescent dye tracer within the entire spatial domain of a planar section of the salt-water flow, which is diluted at the same rate as the salt water. The quantitative salt-water modeling technique has been validated by comparing it with real fire experiments and theoretical data. The scaling laws are also proved by varying the initial source strength or ceiling height in the impinging plume configuration. The detailed salt-water measurements provide insight into of the wall interactions and laminarization effects in the impinging plume configuration. Additionally, highly resolved measurements provide mean profiles and turbulent statistics which will be useful for validating and developing sub-grid scale models in Computational Fluid Dynamics (CFD) codes. Furthermore, an engineering heat transfer model is developed to predict the convective ceiling heat transfer from impinging plumes using the quantitative salt-water modeling technique along with an adiabatic wall modeling concept. The successful application of the adiabatic wall heat transfer model illustrates a well controlled method for studying the heat transfer issues in more complex fire induced flow configurations by using the quantitative salt-water modeling technique. CHARACTERIZATION OF FIRE INDUCED FLOW TRANSPORT ALONG CEILINGS USING SALT-WATER MODELING
The Role of Robotic Mechanotherapy in the Recovery of Mobility in Patients after an Acute Cerebrovascular Accident

Hemiparesis of various severity is a common type of motor disorder resulting from an experience of a stroke. It is motor disorders that lead to the disruption of such categories of activity as the ability to move and self-care, which entails a limited patient mobility. The study has included 35 patients with motor disorders resulting from acute cerebrovascular accidents (CA), and the patients have undergone medical rehabilitation. Clinical research method (Ashworth and Rivermead scales) and mathematical statistics have helped assess the positive effects of robotic mechanotherapy, which was used in the rehabilitation of stroke patients. As a result of rehabilitation measures with the use of robotic mechanotherapy, 68.2% of the examined subjects have developed significant strength in the hand, and 45.5% - in the leg (p˂0.005). In the remaining subjects, no significant improvement in the motor function has been observed, although mobility has improved in all examined patients and the average Rivermead mobility index has been 11.4±2.1 out of 15 (p <0.001).
Integrating Design and Construction with Wearable Computers

Wearable computers can help bridge the gap between design and construction. They can integrate these traditionally separate cultures by improving the flow of information between them. Using a wearable computer, design and construction personnel can now exchange design information quickly and continuously between the point of work on the construction site and the remote design office. The improved iteration between design and construction and much stronger connection between design personnel and construction site afforded by wearable computers may point the way to a new kind of integrated architectural process. In this study, the goal was to determine the value of wearable computers in integrating design and construction by measuring specific performance characteristics. The results include findings on productivity, rework and communication quality. They reveal that wearable computers can improve communication quality and reduce rework, but may have an initially negative impact on productivity. These findings suggest that wearable computers may play a key role in future building projects, helping to bridge the current divide between design and construction.
A New Technique for Characterization of Residual Stresses in Glass Surfaces: Scratch Test Completed with Image Analysis

Residual stresses significantly influence the strength and lifetime of the glass products, therefore their qualification and quantification during production is basically important for evaluating their probable reliability in application. The current paper aims at introducing a novel procedure of the suggested automatic glass quality test based on instrumented scratch test completed with computer aided image analysis. A special emphasis is put on the problem of limited reproducibility and reliability of the image processing, arisen in the first stage of the research work. The latest results consisting in the development of a new algorithm, providing a more reliable evaluation of the test data will be described.
Heterodera glycines (soybean cyst nematode).

Abstract The soybean cyst nematode H. glycines is a known major pest of soybean in regions of the USA particularly semi-arid areas. The nematode has now been found as a pest of soybean outside the USA in Argentina, Brazil, Colombia, China, Egypt, Indonesia, Iran, Italy, Japan, Korea, Paraguay and the former Soviet Union. Other hosts include Phaseolus beans. It can survive in a semi-dried state and is easily spread in soil or on plant material. It is a pest in temperate areas and does not develop below 15°C or above 33°C. Once introduced, the populations of the nematode can rapidly increase as it will complete 6-7 generations per growing season.
An influence of current leakage on characteristics of quantum well laser

Significant changes in quantum well laser performances when current leakage is not neglected are reported. Leakage effect is included extending three‐level rate equations. Derived SPICE model is used to optimize and improve the most important parameters of single quantum well lasers: threshold current, cutoff frequency, and turn‐on delay time. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 479–483, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23121
A high performance V-band monolithic FET transmit-receive switch

A monolithic V-band GaAs FET transmit-receive switch is described. The insertion loss for the switch-on path is less than 1.5 dB across a 2-GHz bandwidth (59 to 61 GHz) and is less than 3.2 dB across an 8-GHz bandwidth (56 to 64 GHz). The isolation during switch-off is greater than 25 dB across a 2-GHz bandwidth (59 to 61 GHz) and is greater than 23 dB across an 8-GHz bandwidth (56 to 64 GHz). The monolithic FET switch circuit demonstrated a switching speed of less than 1 ns and radio-frequency power handling capability in excess of 450 mW. <<ETX>>
The dependence of hot carrier degradation on AC stress waveforms

The hot carrier degradation of submicron n-channel FETs is characterized for various gate and drain pulse waveforms. The results are consistent with interface electron traps generated by hot holes. The results showed that inverters with small loads can degrade faster than inverters with large loads, due to AC degradation effects. Device lifetime in circuits cannot in general be projected by DC data. The AC effect was also found to be dependent on device structure. <<ETX>>
Quality-an end-user's perspective (higher education)

The quality of higher education, like the quality of any other product, should be defined by the end user. As an end user whose needs have changed with privatisation, ScottishPower now has a broader definition of quality. Here, the author describes how this definition may have implications for the power engineering educational establishments in the UK.
A stability assessment tool for DC-DC converters

We describe an Excel-based tool that calculates the small-signal stability characteristics of a DC-DC converter when combined with a load network. Using measured or simulated data obtained for just the converter, the tool calculates and plots voltage loop gain characteristics of a DC-DC converter for a wide range of load-network topologies and voltage-sense configurations. The tool also predicts stability margins of the converter+load combination. The method used is unique in the sense that (1) it decouples the closed loop system into converter and load subsytems that allows a very convenient way of calculating loop response when the load is varied, and (2) the converter-only subsystem is characterized by measured data which yields a very accurate prediction of the loop response and stability margins. The purpose of the tool is to enable the user of the converter to get an accurate estimate of stability margins in an application without actually measuring the loop gain.
Wilkinson power divider incorporating quasi-elliptic filters for improved out-of-band rejection

A Wilkinson power divider with improved out-of-band rejection is proposed. A fourth-order quasi-elliptic filter is used to replace each quarter-wavelength transformer in a conventional Wilkinson power divider for good passband selectivity. Additional transmission zeroes are created by using the 0° feeding structure to enhance the out-of-band rejection. A 2 GHz Wilkinson power divider incorporating quasi-elliptic filters with a fractional bandwidth of 5% has been fabricated. The measured results present 40 dB roll-off skirts at 2 ± 0.12 GHz and validate the design concept.
Integrated OCSVM mechanism for intrusion detection in SCADA systems

Intrusion detection in real-time systems is a problem without a profound solution. In supervisory control and data acquisition (SCADA) systems the absence of a defence mechanism that can cope with different types of intrusions is of great importance. False positive alarms or mistakes regarding the origin of the intrusion mean severe costs for the system. An integrated one-class support vector machine (OCSVM) mechanism that is distributed in a SCADA network is presented, as a part of an intrusion detection system, providing accurate information about the origin and the time of an intrusion. The module reads the network traffic, splits traffic according to the source of the packets and creates a cluster of OCSVM models. These trained models run in parallel and can accurately and fast recognise different types of attacks.
Real-time wound management through integrated pH sensors: a review

Purpose – Real-time monitoring of wound or injured tissues is critical for speedy recovery, and the onset of a cascade of biochemical reactions provides potential biomarkers that facilitate the process of wound monitoring, e.g. pH, temperature, moisture level, bacterial load, cytokines, interleukins, etc. Among all the biomarkers, pH has been known to have a profound impact on the wound healing process, and is used to determine the incidence of bacterial infection of the wound (persistently elevated alkaline pH), proteolytic activity at the site of injury, take rate in skin grafting, wound healing stage and preparation for wound debridement. Design/methodology/approach – This review highlights the significance of pH in determination of clinical parameters and for selection of an appropriate treatment regime, and it presents an in-depth analysis of the designs and fabrication methods that use integrated pH sensors, which have been reported to date for the real-time monitoring of wound healing. Findings – F.
DEVELOPMENTS AND APPLICATIONS OF HIGH-PERFORMANCE CCD AND CMOS IMAGING ARRAYS

▪ Abstract For over 20 years, charge-coupled devices (CCDs) have dominated most digital imaging applications and markets. Today, complementary metal oxide semiconductor (CMOS) arrays are displacing CCDs in some applications, and this trend is expected to continue. Low cost, low power, on-chip system integration, and high-speed operation are unique features that have generated interest in CMOS arrays. This paper reviews current CCD and CMOS sensor developments and related applications. We compare fundamental performance parameters common to these technologies and describe why the CCD is considered a mature technology, whereas CMOS arrays have significant room for growth. The paper presents custom CMOS pixel designs and related fabrication processes that address performance deficiencies of the CCD in high-performance applications. We discuss areas of development for future CCD and CMOS imagers. The paper also briefly reviews hybrid imaging arrays that combine the advantages of CCD and CMOS, producing better.
DISAIN PERENCANAAN INSTALASI PENGOLAHAN AIR LIMBAH (IPAL) DAN RE-USE AIR DI LINGKUNGAN PERHOTELAN

Denpasar is one of the number one tourist destination in the world. This city needs a lot of water resources with high quality to meet the needs of the hotel. While the Bali island with a relatively small area can not save the water resources in large numbers, the good management of water resources and efficiency use of water is realy needed. Hotel is one of the largest water users in the city of Denpasar. The water source is from deep ground water and PDAM with the same quality. If someday deficit water and sea water intrusion in Denpasar happened, the hotel will be accused as one major cause of this problem. To overcome these problems, environmentally friendly hotel management will be needed to achieve "GREEN HOTEL & RESORT" programs in Bali, such as water usage efficiency, water recycle and protect environment from wastewater polution. To achieve this without reducing the amount of water consumption, can be done by using the technology of wastewater reuse, with technology Waste Water Treatment Installation (WWTP) and continued with the water quality improvement technology using multi media filters, ultra-filtration or reverse osmosis.
Broadband circularly polarized corner-truncated square patch array antenna

A circularly polarized antenna with low cost foam substrate and film is proposed to obtain wide bandwidth and high performance. The proposed antenna is composed of stacked corner-truncated patches with sequential rotation feed. Having above 20% return loss and axial ratio bandwidths, the designed antenna can be used for application of a broadband system using circular polarization. And, as low cost foam and film is used for the substrate, a low cost antenna can be designed.
MPPT of Wind Energy Conversion System Based on Fuzzy Control

The output characteristics of wind energy conversion system are affected by the wind speed stochastic nonlinearity and uncertainty. To improve conversion efficiency, the method of realizing maximum power point tracking (MPPT) based on fuzzy control is proposed. Through adjusting the speed of the wind turbine by output power, the system approximates the maximum power operating point without wind speed sensor. The method constantly revises the system parameter in operation so that the parameter can be constantly optimized. Simulation results are given and discussed with MATLAB/SIMULINK to validate that the proposed control strategy has the good performance in terms of dynamic response and steady property.