Miracle-dz/UniFAR-FTUs huggingface dataset:
Compact Unequal Power Divider with Filtering Response

We present a novel unequal power divider with bandpass responses. The proposed power divider consists of five resonators and a resistor. The power division ratio is controlled by altering the coupling strength among the resonators. The output ports have the characteristic impedance of 50 Ω and impedance transformers in classical Wilkinson power dividers are not required in this design. Use of resonators enables the filtering function of the power divider. Two transmission zeros are generated near the passband edges, resulting in quasielliptic bandpass responses. For validation, a 2 : 1 filtering power divider is implemented. The fabricated circuit size is 0.22 λg 0.08 λg, featuring compact size for unequal filtering power dividers, which is suitable for the feeding networks of antenna arrays.
Design of an Optimally-Diagnostic Skin Test With Fewer Samples for Diagnosis of Sensitivity to Eight Allergens: a First-In-Human Study of Dose Escalation and Simultaneous Administration in Chinese Subjects

Background: Skin prick test is usually the preferred test in the diagnostic workup for allergic diseases, while there are few types of standardized allergen extracts available. Besides, standardization and composition give no assurance that the allergen extracts are within the concentration range that give the best chance of a true diagnosis. We designed a first-in-human diagnostic skin test with fewer samples to identify the optimally diagnostic concentration for eight standardized extracts from frequent native allergens, and to assess the safety of the eight allergens extracts’ simultaneous administration for supporting clinical allergen screening.Methods: Patients aged 18-45 years who had a history of allergic diseases were enrolled in this two-part open-label, parallel study: Study 1, each patient was given three concentrations of one allergen extract in turn. Study 2, each patient was given two concentrations of eight allergens extracts. Negative and positive controls were given each time the allergen was given. Both safety and sensitivity were evaluated to determine the optimally diagnostic concentration. Related-Samples Friedman's Two-Way Analysis was used to evaluate the difference of wheal diameter between different concentrations of each allergen. SPSS Statistics 26 was used for statistical analysis, and the significance test level was 0.05. Results: The sensitivity of allergens increased with the increasing of concentration. The eight investigated allergens showed good safety and did not reach the dose limit toxicity whether used alone or in combination. The optimally diagnostic concentration for eight aeroallergens were respectively determined as 33333 DU/mL, 12000 DU/mL, 8667 DU/mL, 50000 DU/mL, 40000 DU/mL, 3333 DU/mL, 7000 DU/mL, and 5000 DU/mL.Conclusions: This study designed a solution to determine the optimally diagnostic concentration with fewer subjects for further clinical trials of the eight investigated allergens and the results of this phase I clinical trial support further clinical research of investigated allergens. Trial registration: The trial was registered on www.chictr. org.cn (ChiCTR1900023952, 06/19/2019, retrospectively registered).
A guide to simulation of hysteretic gate delays based on physical understanding [SOI logic]

Studies of floating body effects in SOI transistors and circuits have been widely reported. Nevertheless, in part because of the complexities of the device physics and the inaccuracies of numerical simulations, there is still need for a physical understanding of the floating body effect to guide a circuit designer in evaluation of the resulting hysteretic gate delay. This paper describes the dynamics of the floating-body effect in terms familiar to the circuit designer (voltages, capacitive coupling, and diode currents) and proposes a methodology for specification of body voltages for bounding circuit delay. This methodology is developed for inverters and can be extended to complex gates. A basis for detecting inaccuracies in SPICE simulations is included. Data showing the effect of drain-to-body capacitance on hysteretic behaviour is presented.
Setting up autonomous controlled networks

The increase of dispersed generation has strong impact on network operation and design. Local equilibrium of load and generation in combination with implementing power electronics and storage opens the possibility for autonomous operating networks. These networks operate in cooperation with the total electric grid, resulting in manageable networks. In order to understand and to study the behaviour of the autonomous network the process of power supply will be split into several sub processes each with their own specific features and responsibilities. In cases where complex control is involved it is common to distinguish three process levels: the electrical layer, the control layer and an interface layer. For modelling the autonomous network it is useful to introduce a fourth layer called the outside world. The paper discusses a possible structure of these new networks and gives some requirements concerning the operation, control and modelling. At the end of the paper several aspects to be studied further are described.
A model for prediction of own voice alteration with hearing aids

For normal hearing persons, own voice perception is a complex function of airborne sound transmission and bone-conduction transmission; the dynamics of the system depend on the motion of the mouth and, consequently, the articulation. The sound transmission between mouth and the cochlea can be modelled as a time-depended, non-linear filter. For persons with hearing aids, the system becomes even more complex. First, the open-fit receiver, vented or closed earmold affect both the airborne and bone-conducted transmission due to acoustic filtering and the occlusion effect. Second, the hearing aid amplifier influences the airborne sound; this influence is even more difficult to predict due to microphone settings and hearing aid compression. A model for own voice sound transmission was devised and used to predict changes in own voice perception subsequent to hearing aid fitting. The model is a combination of ear-canal acoustics and active amplification. The predictions were verified in 30 subjects fitted with hearing aids. The hearing aid types included open fittings, classic BTE and ITE hearing aids. The model gave good prediction of the own voice ear canal sound pressure alteration caused by the hearing aid. However, this sound pressure alteration do not predict subjectively rated own voice problems.
Timber, its nature and behaviour

Preface. Acknowledgements. Chapter 1 - Structure of Timber. Chapter 2 - Appearance of Timber in Relation to its Structure. Chapter 3 - Mass Volume Relationships. Chapter 4 - Movement in Timber. Chapter 5 - Flow in Timber. Chapter 6 - Deformation Under Load. Chapter 7 - Strength and Failure in Timber. Chapter 8 - Durability of Timber. Chapter 9 - Processing of Timber. Index.
PRESSURE FLUCTUATIONS ON THE HULL INDUCED BY CAVITATING PROPELLER

Experimental results about pressure fluctuations induced on a flat plate have shown that strong cavitating propellers on ships of conventional design produce two separate effects. The pressure amplitude decreases linearly with decreasing propulsion. On the other hand the amplitude increase in pressure waves is caused by whirling and wakes. The interaction between propeller and hull is studied as a factor of different propeller parameters.
Proceedings of B factories : The state of the art in accelerators, detectors and physics : Stanford Linear Acceleratior Center April 6-10, 1992

The conference B Factories, The State of the Art in Accelerators, Detectors and Physics was held at Stanford Linear Accelerator Center on April 6-10, 1992. The guiding principle of the conference was to bring together accelerator physicists and high energy experimentalists and theorists at the same time, with the goal of encouraging communication in defining and solving problems in a way which cut across narrow areas of specialization. Thus the conference was, in large measure, two distinct conferences, one involving accelerator specialists, the other theorists and experimentalists. There were initial and closing plenary sessions, and three separate tracks of parallel sessions, called Accelerator, Detector/Physics and Joint Interest sessions. This report contains the papers of this conference, the general topics of these cover: vacuum system, lattice design, beam-beam interactions, rf systems, feedback systems, measuring instrumentation, the interaction region, radiation background, particle detectors, particle tracking and identification, data acquisition, and computing system, and particle theory.
Microwave photonic filter with a continuously tunable central frequency using an SOI high-Q microdisk resonator

Utilizing a high-Q microdisk resonator(MDR) on a single silicon-on-insulator(SOI) chip, a compact microwave photonic filter(MPF) with a continuously tunable central frequency is proposed and experimentally demonstrated. Assisted by the optical single side-band(OSSB) modulation, the optical frequency response of the MDR is mapped to the microwave frequency response to form an MPF with a continuously tunable central frequency and a narrow 3-dB bandwidth. In the experiment, using an MDR with a compact size of 20×20 μm2and a high Q factor of 1.07×105, we obtain a compact MPF with a high rejection ratio of about 40 dB, a 3-dB bandwidth of about 2 GHz, and a frequency tuning range larger than12 GHz. Our approach may allow the implementation of very compact, low-cost, low-consumption, and integrated notch MPF in a silicon chip.
AN INVESTIGATION INTO THE VARIATION OF SHIP SKIN FRICTIONAL RESISTANCE WITH FOULING

A technique has been developed for determining the local skin friction of a ship's hull under seagoing conditions. The method is based on detailed measurements of the boundary layer velocity distribution using a small pitot type probe. A development of the law of the wall theory is used to deduce the local skin friction coefficient from the velocity profile.
Free vibrations of coupled spans of overhead transmission lines

The weakly nonlinear, freely vibrating motion of a system of coupled spans of suspended overhead transmission lines is studied. It is shown that the natural vibration is the gravity mode, which is free from tension in the first harmonic. Particular attention is given to an intermodal resonance, which may be interesting for galloping control.
Pb(Zr,Ti)O3 thin films by in-situ reactive sputtering on micromachined membranes for micromechanical applications

For micromechanical applications, piezoelectric PbZrTO3 (PZT) thin films have been deposited on metallised Si3N4/SiO2 layers on Si wafers. Films with compositions near the morphotropic phase boundary (x=0.53) were prepared at 600°C using a multitarget, in-situ, reactive deposition process. The PZT films were optimised with respect to Pb/(Zr+Ti) flux and Zr content. Within certain processing limits, the lead content was found to be self-stabilising, e.g. any excess lead re-evaporated from the substrate, resulting in essentially single phase films. The crystallisation and orientation were improved by the presence of a PbTiO3 - rich seed layer, which allowed the deposition of films with >95% / orientation. Membranes with piezoelectric films were micromachined by chemically etching the Si substrate. The piezoelectric response, i.e. the deflections, of the resulting membranes were measured as a function of applied voltage and frequency using an interferometer.
The International Market for MBA Qualifications

This paper explores the relationship between fees charged by MBA programmes and the number of applications to these programmes, using a panel dataset comprising universities from countries across the world. Using Three-Stage-Least-Squares methods for simultaneous equations, we find a two-way relationship between fees and applications: higher application numbers encourage universities to charge higher fees in the future, but higher fees in turn curtail application numbers. Of particular note are the results pertaining to additional explanatory variables that potentially represent MBA programme quality signals to applicants. We find evidence that higher GMAT scores of existing students increase applications, as do higher post MBA salaries. Meanwhile, university and programme professional accreditations do not impact on student application choices, nor do alumni ratings of programme quality. Published MBA programme rankings appear to have little impact on applications, and where an effect can be identified, it appears that a better ranking discourages applications.
The development of an evidentiary on-board mass-monitoring application for heavy vehicles

This paper reports the work in progress in the development of an evidentiary on-board mass-monitoring (OBM) application for heavy vehicles in Australia. The project so far has involved three steps; a capability review on heavy vehicle OBM devices in Australia, the development of a technical feasibility project plan and the initial results from OBM pilot testing for accuracy and tamper. The initial results have led to the development of a full testing plan for a wide-scale OBM test program across Australia.
X Band Integrated Diode Phase Shifters

Recent advances in solid state microwave technology have made possible the fabrication of diode phase shifters in hybrid integrated circuit form. However, work at X band has been hindered by the limited isolation presently available with diodes at this frequency. Actually, accurate phase shifters can still be built if one accounts for this limited isolation in the design and analysis of the systems. This paper outlines this analysis and applies it in the design of low insertion loss phase shifters for wideband operation around 9 GHz. Surface oriented P/sup +/IN/sup +/ diodes are used in these switched line length systems to obtain phase shifts of up to 360/spl deg/.
The role of failure/problems in engineering: A commentary of failures experienced - lessons learned

The written version of a series of seminars given to several aerospace companies and three NASA centers are presented. The results are lessons learned through a study of the problems experienced in 35 years of engineering. The basic conclusion is that the primary cause of problems has not been mission technologies, as important as technology is, but the neglect of basic principles. Undergirding this is the lack of a systems focus from determining requirements through design, verification, and operations phases. Many of the concepts discussed are fundamental to total quality management (TQM) and can be used to augment this product enhanced philosophy. Fourteen principles are addressed with problems experienced and are used as examples. Included is a discussion of the implication of constraints, poorly defined requirements, and schedules. Design guidelines, lessons learned, and future tasks are listed. Two additional sections are included that deal with personal lessons learned and thoughts on future thrusts (TQM).
ICSA guide to cryptography

From the Publisher: Written by an expert in cryptography, and backed by the leading professional cryptographic organization, this book tackles the key cryptographic issues with a special focus on current technical problems. Integrating the rich history of classical cryptography with modern public key cryptosystems, this guide is a authoritative source of information on processes, products, management, implementation, and product certification. For anyone who has ever been fascinated by "secret codes", but expecially for information technology workers and managers directly concerned with secure computing.
The Oil Security Metrics Model: A Tool for Evaluating the Prospective Oil Security Benefits of DOE's Energy Efficiency and Renewable Energy R&D Programs

Energy technology RD NRC, 2005). ("The Congress continued to express its interest in R&D benefits assessment by providing funds for the NRC to build on the retrospective methodology to develop a methodology for assessing prospective benefits." NRC, 2005, p. ES-2) In 2004, the NRC Committee on Prospective Benefits of DOE's Energy Efficiency and Fossil Energy R&D Programs published a report recommending a new framework and principles for prospective benefits assessment. The Committee explicitly deferred the issue of estimating security benefits to future work. Recognizing the need for a rigorous framework for assessing the energy security benefits of its R&D programs, the DOE's Office of Energy Efficiency and Renewable Energy (EERE) developed a framework and approach for defining energy security metrics for R&D programs to use in gauging the energy security benefits of their programs (Lee, 2005). This report describes methods for estimating the prospective oil security benefits of EERE's R&D programs that are consistent with the methodologies of the NRC (2005) Committee and that build on Lee's (2005) framework. Its objective is to define and implement a method that makes use of the NRC's typology of prospective benefits and methodological framework, satisfies the NRC's criteria for prospective benefits evaluation, and permits measurement of that portion of the prospective energy security benefits of EERE's R&D portfolio related to oil. While the Oil Security Metrics (OSM) methodology described in this report has been specifically developed to estimate the prospective oil security benefits of DOE's R&D programs, it is also applicable to other strategies and policies aimed at changing U.S. petroleum demand.
Quality Attribute Workshops, 2nd Edition

Abstract : Quality attribute workshops (QAWs) provide a method for analyzing a system's architecture against a number of critical quality attributes, such as availability, performance, security, interoperability, and modifiability, that are derived from mission or business goals. The QAW does not assume the existence of a software architecture. It was developed to complement the Architecture Tradeoff Analysis Method(Service mark) (ATAM(Service mark) in response to customer requests for a method to identify important quality attributes and clarify system requirements before there is a software architecture to which the ATAM could be applied. The analysis is based on applying a set of test cases to a system architecture. These test cases include questions and concerns elicited from stakeholders associated with the system. The process of building the test cases allows stakeholders to communicate among themselves, thereby exposing assumptions that may not have surfaced during requirements elicitation. Our experience to date includes multiple QAWs that were held with four different U.S. government acquisition programs. This is the second edition of a technical report describing QAWs. This report clarifies the context in which a QAW is applicable, provides a rationale for developing the process and describes it in detail, and concludes with a list of lessons learned and a discussion of how these lessons have helped evolve the process to its current state.
Spin-off to pay-off : an analytical guide to investing in corporate divestitures

Spin-off to Pay-off is the action-oriented new guide that shows you, step-by-step, how you can capitalize on this investment anomaly. Joseph W. Cornell, a veteran of the investment world and acknowledged authority on this unique investment strategy, clarifies the complex universe of corporate spin-offs by telling you why a corporation creates a spin-off and proven strategies that will make this dynamic environment work for you; 4 reasons spin-offs are generally misvalued by the market and how you can use each of these reasons to isolate the spin-offs with the greatest upside potential; and specific strategies for locking in spin-off profits: when to sell, and sure-fire market signs that let you buy and sell for added profits again and again. More than theory and research, however, Spin-off to Pay-off brings you proven evidence of how some spin-offs have worked for shareholders in the past. while others have left shareholders high and dry. Actual case histories, presented along with Cornell's expert analysis, will fine-tune your sixth sense and clue you in on what signs to watch out for.
Kontinenz und Mobilität – zwei Seiten einer Medaille?

Was ist neu? Zusammenhang von Harninkontinenz und Mobilitätsstörungen Harninkontinenz und eine Störung der Mobilität – 2 geriatrische Syndrome – haben eine hohe Korrelation und beeinflussen sich gegenseitig negativ. Das Neuauftreten einer Harninkontinenz sollte ein Alarmsignal sein, weil sich die Mobilitätsparameter korrelierend negativ entwickeln. Erkennen der Assoziation von Harninkontinenz und Mobilitätsstörungen im klinischen Alltag Wo das eine Syndrom (Harninkontinenz oder Mobilitätsstörung) auftritt, sollte man das andere im Blick haben (Mobilitätsstörung oder Harninkontinenz). Dies gelingt mit einem Harninkontinenz-Assessment. Korrelation der Harninkontinenz mit Stürzen und Frakturen Harninkontinenz führt zu gehäuften Stürzen, der Einfluss auf Verletzungen, insbesondere Frakturen, bleibt unklar. Gegenseitiger Einfluss von körperlicher Fitness und Inkontinenz Kombinierte, die Inkontinenz und die körperliche Fitness beeinflussende Interventionen haben einen positiven Effekt auf beide geriatrische Syndrome. Studien weisen darauf hin, dass reines Kontinenzmanagement einen Einfluss z. B. auf Stürze hat, und umgekehrt eine körperliche Aktivierung sich positiv auf die Inkontinenz auswirkt.
The Potential Impacts of a Digital Preoperative Assessment Service on Appointments, Travel-Related Carbon Dioxide Emissions, and User Experience: Case Study

Background The National Health Service (NHS) cannot keep up with the demand for operations and procedures. Preoperative assessments can be conducted on the internet to improve efficiency and reduce wait times for operations. MyPreOp is a cloud-based platform where patients can complete preoperative questionnaires. These are reviewed by a nurse who determines whether they need a subsequent face-to-face appointment. Objective The primary objective of this study is to describe the potential impact of MyPreOp (Ultramed Ltd) on the number of face-to-face appointments. The secondary objectives are to examine the time spent on preoperative assessments completed using MyPreOp in NHS Trusts and user ratings of usability and acceptability. Methods The study design was a case study service evaluation. Data were collected using the MyPreOp system from 2 NHS Trusts (Guy’s and St Thomas’ and Royal United Hospitals Bath) and the private BMI Bath Clinic during the 4-month period from September to December 2020. Participants were adults of any age and health status at the participating hospitals who used MyPreOp to complete a preoperative assessment before a scheduled surgery. The primary outcome was the number of face-to-face appointments avoided by patients who used MyPreOp. The investigated secondary outcomes included the length of time spent by nurses completing preoperative assessments, associated travel-related carbon dioxide emissions compared with standard care, and quantitative user feedback. User feedback was assessed at all 3 sites; however, the other outcomes could only be examined in the Royal United Hospitals Bath sample because of data limitations. Results Data from 2500 participants were included. Half of the assessed patients did not need a further face-to-face appointment and required a median of only 5.3 minutes of nurses’ time to review. The reduction in appointments was associated with a small saving of carbon dioxide equivalent emissions (9.05 tons). Patient feedback was generally positive: 79.8% (317/397) of respondents rated MyPreOp as easy or very easy to use, and 85.2% (340/399) thought the overall experience was good or very good. Conclusions This evaluation demonstrates the potential benefits of MyPreOp. However, further research using rigorous scientific methodology and a larger sample of NHS Trusts and users is needed to provide strong evidence of MyPreOp’s efficacy, usability, and cost-effectiveness.