Miracle-dz/UniFAR-FTUs huggingface dataset:
Building Knowledge Management Environments for Electronic Government

From the Publisher: Tools and Techniques to Improve Performance! Building Knowledge Management Environments for Electronic Government shows you how to harness the power of the Internet to bring information to government decision-makers and citizens alike - and in so doing, to create a more efficient, responsive government. In this new resource, you'll learn how to design and build new environments for enterprise-wide performance improvement. Use the key tools and techniques of this emerging discipline to create a new culture of information sharing. Detailed case studies teach you how to apply knowledge management on an agency-wide basis. Discover the critical success factors and learn from mistakes that have been made so you can avoid problems from the start. You'll Learn How To: Move from data to information, intelligence, knowledge, and finally, wisdom Link communities of practice to knowledge bases Use best practices for knowledge management from a case study in the defense sector Use enterprise information portals as the principal delivery mechanism for knowledge in an enterprise Establish key technology platforms for knowledge management Use digital storytelling as a tool for sharing knowledge across an environment Maximize the impact of collaborative work software Create knowledge management environments in procurement practices Develop a system for gaining knowledge through performance measurement Integrate knowledge management in every aspect of your mission Become a knowledge-based organization
Low-power high-speed current comparator design

A new current comparator is proposed that is optimised for low power consumption whilst maintaining high speed. This novel comparator design offers a reduction in power consumption of over three orders of magnitude compared with other high-speed designs, and allows picoampere current decisions at kilohertz frequencies. Circuit simulations were performed in Cadence software for a standard 0.35 mum process.
The Application of Transient Electromagnetic Method in Detecting the Corrosion of Heat Distribution Pipeline

Leakage of the heat distribution pipeline will seriously affect the safety of residents and cause economic losses. This paper presents the transient electromagnetic method (TEM) for detecting the corrosion of buried heat distribution pipeline, which mainly introduced the principle of the TEM to detect the pipeline and the general detection method. Combining with an instance of corrosion detection of buried heat distribution pipeline in a certain street in China Hohhot, the detection results were analyzed and the feasibility of this method was proved through excavation. The results show that the TEM can detect the uniform corrosion distribution of buried metal pipeline and it’s effective and practical for detecting the buried heat distribution pipeline. The TEM could provide a new method for guaranteeing the safe operation of the heat distribution pipeline.
DYNAMICS AND CONTROL OF FLEXIBLE SPACE STRUCTURES DURING THEIR ASSEMBLY IN AN ORBIT

Abstract Some of the control problems and analysis of the construction dynamic properties of a discretely evolving space structure (DES) during the process of its in orbit assembly are considered. The equations of the DES attitude motion are deduced taking into account discrete change with time of the construction and its essential flexibility. The analysis of the changeable dynamic properties of the DES is presented. This control object is featured by variable parameters, high and variable number of freedom degrees and characteristics of a multi-frequency vibrating system. Sequence of the attitude control strategies that guarantee stable and high precision of the control throughout all stages of the assembly is suggested.
Does Domestic Violence in Malaysia is Increasing During The Pandemic? Factors and Policy-Related

During Covid-19, Malaysia has announced the Movement Control Order (MCO) in which was started on March 18, 2020, to curb the spread of coronavirus amongst Malaysian. This tested people's emotions, feelings, and the way they act. It also has tested their patient, resilience, and their ability to be kind and caring. Thus the study focus on the factors contributing to domestic violence in Malaysia. The objective of this paper is to examine the level of awareness on domestic violence during the MCO and suggest ways to prevent or reduce domestic violence in Malaysia via Government policies and interventions as well as enforcement measures related to acts and laws. The study used a hybrid method of a random online survey as well as Malaysia's policy review to gauge factors that lead to Domestic Violence in Malaysia during the Covid -19 pandemic. The results indicated that Stability in economic status, educational level, and upbringing in an urban area enable to curb domestic violence from occurring despite facing challenging situations dealing with pandemic Covid -19. As domestic violence deemed to be taboo to be discussed in Malaysian community due to its culture, the study concludes that citizen in big cities is well aware on the avenue and laws that designed by the relevant authority to protect people. Citizens are also aware that the pandemic triggered more incidents to happened and they have the knowledge on support systems available in the country. This is essential so that appropriate recommendations on the next course of action be proposed to the stakeholders on how to achieve zero domestic violence in Malaysia
A Distributed Method for Two Simultaneous Events Detection in WSNs

It is important to detect multi simultaneous events in Wireless Sensor Networks (WSNs). WSNs are usually consist of tiny sensor nodes which are often deployed in harsh environment and facing the fault conditions. In this paper, a fault tolerant distributed two-event detection method based on the Bayesian approach is proposed for WSNs. In addition, a data fusion algorithm is employed to involve the statuses of the neighborhoods in the decision of each sensing point. The proposed distributed method is used to detect two events simultaneously in a WSN with 200 sensors that distributed randomly. Also some random faults occur in all sensing nodes. Results show the accuracy and significant performance of the proposed two events detection approach.
New analytical expression for the drain current of short-channel MOS transistors in the triode region

Neglecting the effects of the source and drain electric fields on the depletion-layer charge, and consequently on the drain current, cannot be justified in short-channel MOS transistors. The existing geometrical approach for analysing this problem, known as a charge-sharing model, gives good agreement with experimental data only if an extremely complex expression for the drain current is used. In the letter the use of Gauss's law as a more general approach to analysis of the fringing field effect has been proposed. Using this approach, a simple expression for the drain current of short-channel MOS transistors, which shows excellent agreement with experimental data, has been derived.
The Present State of Pumped Storage in Europe

Pumped storage in Europe dates back to the late 19th Century with strong upsurges in the 1930's and 1950's. It is used for various purposes, the extremes of which are seasonal storage and peaking. The paper lists all major pumping stations with complete engineering data, discusses the various possible arrangements of the machinery, the types of pumps and turbines available today, and the coupling and shaft arrangements. A few typical storage and peaking operations are described in some detail. After a short review of the economic aspects, a separate chapter is devoted to reversible pump-turbine units.
Power electronics-recent advances and future perspective

In the history of industrial civilization, we have come a long way since the first industrial revolution when James Watt invented the steam engine to replace the muscle power by mechanical power. The invention of electrical machines and industrial application of electricity around one hundred years ago marked a significant milestone in this evolutionary process. Gradually, the advent of solid state semiconductor devices, power electronics, microelectronics, computers and computer-aided engineering techniques brought us well ahead in the midst of a modern industrial revolution. The paper highlights technological advances in power electronics and motion control and gives a brief perspective of the future. Particularly, it reviews a few selected applications from the recent literature. <<ETX>>
Polarization mode dispersion mitigation - performance of various approaches

We have compared and discussed the performance of several simple PMD compensators with PMD robust modulation formats such as dispersion managed (DM) solitons and RZ with large power margins. The latter are found to be comparable with 2-3 DOF PMD compensators, and can be expected to be a realistic alternative especially if used in combination with error correcting codes.
Knowledge regarding cardiovascular risk factors among Chinese medical students

Background A comprehensive assessment of cardiovascular disease (CVD) risk factors is the foundation of CVD prevention and treatment. This study assessed the awareness of CVD risk factors and treatment among Chinese medical students. Methods This cross-sectional study enrolled 48 3 rd year medical students who had finished preclinical course of medicine and 61 4 th year medical students who had finished their rotation in Internal Medicine’s Ambulatory Medicine clerkship from Peking University. The knowledge of CVD risk factors and therapeutic strategy was assessed by a self-administered questionnaire. Results Only about 50% of the 4 th year students knew the target value of low-density lipoprotein cholesterol for diabetic patients and blood pressure for high-risk patients, while the proportions in 3 rd year students were 20.8% and 29.2%, respectively. Although more than 90% students would prescribe cholesterol-lowering therapy to high-risk patients, few students knew the therapy of hypertriglyceridemia (2.1% and 27.9% of 3 rd and 4 th year students, respectively, p =0.001) or combined dyslipidemia. The awareness of their own lipid profile or blood glucose level was not as good as their blood pressure. Conclusions There is an urgent need to improve the knowledge of CVD risk factors and the details of therapeutic strategies among Chinese medical students.
Tracking power converter for supply modulation of RF power amplifiers

This paper describes a tracking power converter and the controller IC for its implementation. The tracking power converter is used for supply modulation of a linear RF power amplifier. Supply modulation improves RF power amplifier efficiency for variable envelope RF signals. This system maximizes tracking bandwidth (/spl sim/160 kHz), ripple suppression (/spl sim/70 dB) and power conversion efficiency (/spl sim/92%) with a relatively low switching frequency (800 kHz).
Soft ferrite cores characterization for integrated micro-inductors

Ferrite-based micro-inductors are proposed for hybrid integration on silicon for low-power medium frequency DC-DC converters. Due to their small coercive field and their high resistivity, soft ferrites are good candidates for a magnetic core working at moderate frequencies in the range of 5–10 MHz. We have studied several soft ferrites including commercial ferrite film and U70 and U200 homemade ferrites. The inductors are fabricated at wafer level using micromachining and assembling techniques. The proposed process is based on a sintered ferrite core placed in between thick electroplated copper windings. The low profile ferrite cores of 1.2 × 2.6 × 0.2 mm3 are produced by two methods from green tape-casted films and ferrite powder. This paper presents the magnetic characterization of the sintered ferrite films cut and printed in rectangular shape and sintered at different temperatures. The comparison is made in order to find out the best material for the core that can reach the required inductance (470 nH at 6 MHz) under 0.6A current DC bias and that generate the smallest losses. An inductance density of 285 nH/ mm2 up to 6 MHz was obtained for ESL 40011 cores that is much higher than the previously reported devices. The small size of our devices is also a prominent point.
A Thin Film Multifunction Sensor for Harsh Environments

ABSTRACT The status of work at NASA Glenn Research Center to develop a minimally intrusive integrated sensor to provide real-time measurement of strain, heat flux and flow in high temperature environments is presented in this paper. The sensor can be beneficial as a single package to characterize multiple stress and strain modes simultaneously on materials and components during engine development and validation. A major technical challenge is to take existing individual gauge designs and modify them into one integrated thin film sensor. Ultimately, the goal is to develop the ability to deposit the sensors directly onto internal engine parts or on a small thin substrate that can be attached to engine components. Several prototype sensors constructed of platinum, platinum-rhodium alloy, and alumina on constant-strain alumina beams have been built and bench-tested. The technical challenges of the design, construction, and testing are discussed. Data from the preliminary testing of the sensor array is presented. The future direction for the sensor development is discussed as well.
Modelling and analysis of a capacitively coupled contactless power transfer system

Capacitively coupled contactless power transfer (CCPT) technology has been proposed as a new contactless/wireless power transfer method recently. By employing electric field as the energy transfer medium, CCPT has advantages of being able to transfer power across metal barriers and reduced electromagnetic interference. However, there is very limited understanding and experience in the CCPT system modelling and analysis. This study models a typical CCPT system and analyses its performance under steady-state operations. An accurate non-linear circuit model is established and the stroboscopic theory is extended to determine the zero-voltage switching (ZVS)-operating frequency of the system. The tuning inductance for achieving exact ZVS operation is derived, and the effects of the coupling and load variations on the system performance are analysed. A prototype CCPT circuit is built, and practical measurements show that the steady-state time domain waveforms and efforts of coupling and load variations calculated from the theoretical model are in good agreements with experimental results. The power efficiency predicted is slightly higher than the practical results, particularly at heavy loads, because ideal power semiconductor switches and wires are used in the theoretical model.
Cybersecurity Threats Detection In IoT Using Krill Based Deep Neural Network Stacked Auto Encoders

The Internet of things (IoT) has concerned much significance for some manufacturing sectors including clinical fields, co-ordinations following, savvy urban communities, and automobiles. Anyway as a worldview, it is sensitive to different sorts of cyber-attacks. Customary very good quality security resolutions for guarantee an IoT structure are not reasonable. This deduces clever organization-based security plans as AI arrangements ought to be made. In this work, we propose Cyber Security Threats recognition in IoT utilizing Krill Based Deep Neural Network Stacked Auto Encoders (KDNN-SAE). In our proposed approach, first, the information pre-processing measure was acted in the underlying development before isolating the dataset into two segments: preparing and test. At that point, flow-based features are extracted from the pre-processed information. By then, the properties to be utilized by the algorithms are chosen in the attribute determination utilizing the Genetic Algorithm (GA). At last, our methodology completes with the execution of the machine learning algorithm KDNN-SAE. The exploratory results show that the introduced method beats the existing techniques to different execution measures.
Is Routine Chemical Thromboprophylaxis Necessary in Patients Undergoing Unicompartmental Knee Arthroplasty?

Background This study aimed to determine the prevalence ofvenous thromboembolism (VTE) in patients undergoing unicompartmental knee arthroplasty (UKA) 3 days and 3 months postoperatively and figure out whether routine chemical thromboprophylaxis was necessary.Methods The medical records of 146 patients who underwent unilateral UKA at our institution were reviewed. The length of hospital stays after the surgery of the patients was 5.6 ± 2.7 days (3–23 days). All patients underwent pneumatic leg compression, rehabilitation exercises, pain management, and chemical deep vein thrombosis (DVT) prophylaxis from the day of surgery to 3 days after the surgery. From the fourth day to discharge, chemical prophylaxis was stopped. After discharge, only rehabilitation exercises were encouraged. All patients underwent bilateral venography or ultrasound preoperatively and 3 days postoperatively to detect DVT. They completed the follow-up review 3 months after the surgery; 108 patients had ultrasound tests again.Results DVT was detected in 9 (6.2%) of the 146 patients 3 days after the surgery and in 8 (7.4%) of the 108 patients 3 months after the surgery. No symptomatic or proximal DVT was observed. No patient exhibited pulmonary embolism–related symptoms. After discharge, six DVTs (66.7%) dissolved, and 6 (5.6%) were newly formed. No significant difference in demographics and surgery-related factors was detected between DVT and no-DVT groups at both time points.Conclusions Routine chemical thromboprophylaxis in patients undergoing UKA with pain management and rehabilitation exercises may not be necessary.
Robust Exploration/Exploitation Trade-Offs in Safety-Critical Applications

Abstract With regard to future service robots, unsafe exceptional circumstances can occur in complex systems that are hardly to foresee. In this paper, the assumption of having no knowledge about the environment is investigated using reinforcement learning as an option for learning behavior by trial-and-error. In such a scenario, action-selection decisions are made based on future reward predictions for minimizing costs in reaching a goal. It is shown that the selection of safety-critical actions leading to highly negative costs from the environment is directly related to the exploration/exploitation dilemma in temporal-difference learning. For this, several exploration policies are investigated with regard to worst- and best-case performance in a dynamic environment. Our results show that in contrast to established exploration policies like e-Greedy and Softmax, the recently proposed VDBE-Softmax policy seems to be more appropriate for such applications due to its robustness of the exploration parameter for unexpected situations.
The Whittier Narrows, California Earthquake of October 1, 1987—Response of Lifelines and Their Effect on Emergency Response

The response of lifeline systems was good, but there were component failures. Communication inadequacies did have a significant impact on the emergency response system. The dysfunction of lifelines, primarily power, communication, and natural gas systems put an added burden on the emergency response system and was the source of most fires. Damage and dysfunction included the frequently observed failure of ceramic elements on high voltage substation equipment, damage to large liquid storage tanks, and the saturation of the telephone system, including emergency response networks, with inappropriate calls. These hold the potential for compounding impacts after larger, more damaging earthquakes. The need to change operating procedures of some lifelines and to update emergency response public information is indicated.
Corporate environmental performance

Purpose – The concept of corporate environmental performance (CEP) is both used in and discussed with respect to international and regional standards, scientific work and business. Yet, there is no concensus on the meaning of the concept itself and on what elements or components it comprises. Moreover, although there is a discussion on interactions between the different levels of CEP, there is a lack of detailed and rigorous analysis. This paper merges the various insights on CEP and its underlying dimensions and addresses existing interactions between strategic and operational CEP. The interactions can be explained by two organizational theories prevailing in empirical studies namely institutional theory (IT) and the natural resource-based view (NRBV). The purpose of this paper is to synthesize the two theories to explain the different interactions. Design/methodology/approach – First, recent papers that summarized research on the concept of CEP and its existing dimensions are reviewed yielding strategic.
Konfliktfreie, selbstoptimierte Trajektorienplanung für ein fahrerloses Transportfahrzeug zur Durchführung des autonomen Gütertransportes im Produktionsumfeld

Im vorliegenden Beitrag wird ein Ansatz zur Trajektorienplanung, die aus Bahnplanung und Bewegungsplanung besteht, für ein fahrerloses Transportfahrzeug (FTF), welches den autonomen Gütertransport im Produktionsumfeld konfliktfrei durchführen kann, dargestellt. Anhand von Wegpunkten aus einer Navigationsfunktion wird zuerst ein kontinuierlicher Fahrweg generiert, welche der optimalen Route in Form von geradlinigen Strecken zwischen den Wegpunkten möglichst nahekommt. Anschließend wird die Bewegungsplanung des FTF unter Berücksichtigung von Geschwindigkeitsbeschränkungen bestimmt. Auf Basis von omnidirektionaler Manövrierbarkeit des FTF wird ein Mechanismus zur Konflikterkennung und -lösung entwickelt. Die aus diesem Ansatz generierte konfliktfreie Trajektorie wird als Führungsgröße zur Fahrdynamikregelung übertragen, sodass der Gütertransport ausgeführt werden kann. Einleitung Im vom Europäischen Fonds für regionale Entwicklung (EFRE) geförderten Verbundprojekt Methoden und Werkzeuge für die synergetische Konzipierung und Bewertung von Industrie 4.0-Lösungen (Synus), an dem insgesamt fünf Professoren der Technischen Universitäten Braunschweig und Clausthal sowie der Ostfalia Hochschule für angewandte Wissenschaften beteiligt sind, wird ein modellgestütztes Werkezeug entwickelt, mit welchem finanzieller Aufwand und Nutzen von Industrie 4.0-Lösungen in kleinen und mittleren Unternehmen (KMU) bewertet werden sollen, um KMU bei deren Einführung beratend zu Unterstützen. Schwerpunkt im Teilprojekt Modellbasierte Konzeption und Bewertung von Industrie 4.0-Lösungen zur Vernetzung mechatronischer Komponenten in Produktionsanlagen durch Digitalisierung (MiMec) der Ostfalia Hochschule ist die Modellierung und Simulation der aus vernetzten mechatronischen Komponenten bestehenden Industrieanlagen und verfügbaren I4.0-Löusngen sowie die systematische Integration autonomer Transportfahrzeuge durch vollständige digitale Vernetzung in intelligenten, cyber-physischen Produktionsanlagen. Im vorliegenden Beitrag wird zuerst der Ansatz zur konfliktfreien Trajektorienplanung auf Basis des neuen Konzeptes eines fahrerlosen Transportfahrzeuges (FTF) der Ostfalia ausführlich dargestellt.
Further extensions to rectangular dielectric waveguide technique for dielectric measurements

This paper describes a method to obtain the dielectric constant of materials using the rectangular dielectric waveguide technique in the WR-22 frequency band. By applying the solution of the wave equation, the actual dielectric constant for samples of small transverse dimensions can be directly recovered from the measured effective dielectric constant by a numerical technique. The method is very quick and simple and provides sufficient accuracy for most practical purposes.