Miracle-dz/UniFAR-FTUs huggingface dataset:
An Evaluation of Routing Methods and the Golden Zone Effect in the Warehouses Order Picking System

Order picking in automotive service parts warehouses is considered to be the most labor-intensive operation. Such warehouses contain hundreds of thousands of items, but normally 20% of products contribute to about 80% of turnover according to Pareto’s 80-20 principle. Therefore most fast moving items arc located near an outbound area which is called the “Golden Zone”. Order picking routing efficiency is related to productivity and labor cost. However, most companies use simple methods. In this paper, we describe a serics of computational experiments over a set of test cases where, we compared various previously existing routing heuristics to an optimal algorithm. We focus on examining the influence of the golden zone on the performance and selection of routing methods. The results obtained show that the optimal routing method increascs the productivity at least 17.2%" and all the routing methods have better performance as the pick up rate from the golden zone increases.
Methodology for usability evaluation of corporate memory design reuse systems

Improving and supporting the process of design knowledge reuse in engineering design can increase productivity, improve the quality of designs, and lead to greater corporate competitive advantage. Whereas internal knowledge reuse from one’s personal experiences is very effective, external knowledge reuse from an external digital or paper archive often fails. Based on a formalization of the internal reuse process from ethnographic studies, a prototype system, CoMem (corporate memory) is presented, which supports the reuse process, particularly the steps of finding and understanding. This paper presents a usability testing framework and methodology for the evaluation of reuse systems such as CoMem. The two pertinent variables are (1) the type of finding task; and (2) the size of the repository. Preliminary results from the evaluation of CoMem are presented as an example of the application of this framework for studying and assessing corporate memory design reuse systems.
Vibration damping with active carbon fiber structures

This paper presents a mechatronic strategy for active reduction of vibrations on machine tool struts or car shafts. The active structure is built from a carbon fiber composite with embedded piezofiber actuators that are composed of piezopatches based on the Macro Fiber Composite (MFC) technology, licensed by NASA and produced by Smart Material GmbH in Dresden, Germany. The structure of these actuators allows separate or selectively combined bending and torsion, meaning that both bending and torsion vibrations can be actively absorbed. Initial simulation work was done with a finite element model (ANSYS). This paper describes how state space models are generated out of a structure based on the finite element model and how controller codes are integrated into finite element models for transient analysis and the model-based control design. Finally, it showcases initial experimental findings and provides an outlook for damping multi-mode resonances with a parallel combination of resonant controllers.
AGP Related Evaluation of Medical Nutrition Therapy for Diabetes Management (AMEND) – A Real World Observation Study

Purpose: To evaluate 24 hour glycaemic profile using AGP in patients with type 2 diabetes who are eligible for meal replacement therapy over a period of 14 days. To assess whether a precise meal replacement plan as an add on to standard of care will make a difference in smoothening out post-prandial peaks and increasing time spent in the desired (70 mg/dl-180 mg/dl) range compared to baseline time in range and post-prandial blood glucose level. Methods: Patients were mounted with AGP asked to follow the regular diet for 6 days. On the 7 th day, based on the AGP report, the most troubled meal was replaced with protein rich, calorie counted, low-carb and fiber enriched meal supplement for the next 6 days. On day 14, the AGP data were collected. Results: The analysis of full cohort (n=566) showed reduction in eA1c and eAG by 11.9% (from 7.84% to 6.90%) and 15.10% (from 178.41 mg/dL to 151.47 mg/dL), respectively when regular meal diet was compared with the replaced meal diet. The average TIR was improved by 23.56% (from 41.38 to 51.13) in full cohort, post-intervention with replaced meal. Conclusion: The glycemic profile of patients with type 2 diabetes was improved by meal replacement therapy over period of 14 days.
HVDC ground electrode heat dissipation in an N-layer soil

The temperature distribution in an N-layer soil, due to high-voltage direct-current (HVDC) injection via ground electrodes, was computed using finite-difference methods. The temperature profiles for various ground electrode shapes buried in a two-layer soil were computed using these same techniques. The results obtained were then compared with results obtained experimentally in the laboratory. A sensitivity analysis was performed on the effect of the height of the top layer of a two-layer earth model. The computed results agree very well with those obtained experimentally. The effect of varying the height of the top layer of a two-layer earth was then investigated. The computations indicate that the temperature can be predicted as a function of this height. >
Analysis of the Effects of Solution Conductivity on Electrospinning Process and Fiber Morphology

The electrospinning process and morphology of electrospun nanofibers depend on many processing parameters. These parameters can be divided into three main groups: 1) solution properties; 2) processing conditions; and 3) ambient conditions. In this paper, we report the results of a comprehensive investigation of the effects of changing the conductivity of polyethylene oxide (PEO)/water solution on the electrospinning process and fiber morphology. The effects of the conductivity of PEO solution on the jet current and jet path are discussed. Furthermore, the fiber diameter and fiber uniformity are investigated by using scanning electron microscopy techniques.
Research on axisymmetric aspheric surface numerical design and manufacturing technology

The key technology for aspheric machining offers exact machining path and machining aspheric lens with high accuracy and efficiency, in spite of the development of traditional manual manufacturing into nowadays numerical control (NC) machining. This paper presents a mathematical model between virtual cone and aspheric surface equations, and discusses the technology of uniform wear of grinding wheel and error compensation in aspheric machining. Finally, a software system for high precision aspheric surface manufacturing is designed and realized, based on the mentioned above. This software system can work out grinding wheel path according to input parameters and generate machining NC programs of aspheric surfaces.
CHAPTER 1

This chapter highlights current research using the embryonic zebrafish as a model system to study the effects of environmental toxicants on behavior. Zebrafish are ideally suited for high-throughput analyses of behavior. Hundreds of fertilized eggs can be collected daily from a single tank and the synchronously developing embryos can be exposed to environmental toxicants in a culture dish or multiwell plate. The developing motor network of the zebrafish embryo has been impressively characterized at multiple levels, from behavior to circuitry to genes, thus establishing a solid foundation for investigating mechanisms of neurobehavioral toxicity. Three assays are reviewed and their usage to screen for toxicant-induced behavioral defects in embryonic zebrafish is critically evaluated. The mechanisms of neurodevelopment are well conserved in vertebrate species in that similar genes, neurotransmitters, and hormones control early brain development and behavior in fish, mice, and humans. Consequently, behavioral assays in embryonic zebrafish may be used to screen for environmental toxicants that influence human brain development and behavior. Several recommendations are made to strengthen current approaches to accomplishing this important goal.
Analysis of the mobility of printed organic p-channel transistors depending on the transistor geometry and orientation

The organic thin film transistor (OTFT) is an elementary part of most organic electronic products. A cost efficient and fast way to produce these circuits is by the use of mass printing techniques like flexography or gravure printing. A huge amount of OTFTs is produced via flexography and via spin-coating as a reference. The morphology of the printed layers and the electrical performance of the produced OTFTs are investigated. Based on these investigations, the dependence of the mobility on the transistor's source/drain geometry is analysed and explained. Analysed geometry parameters are the transistors channel length, channel width and its orientation compared to printing direction.
CFD Analysis of Flow in High-Radius Pre-Swirl Systems

Pre-swirl systems of gas turbines are utilized to reduce the temperature of the cooling air during the transfer from the stationary into the rotating system of the turbine. The amount of temperature decrease between the pre-swirl nozzle and the receiver holes depends on many geometrical and operational parameters. For the design process of a cooling air system, simple but general 1D (one-dimensional) calculation methods are required. These models must comprise correlations describing all dominant flow effects in order to provide the most accurate results. For the development of such models, a good understanding of the flow behavior in the system is indispensable. In this contribution, a pre-swirl scheme consisting of the three main components: pre-swirl nozzle, pre-swirl cavity and receiver hole is investigated numerically for different configurations. The cavity of the system is described as a rotorstator system and as a rotor-rotor system. With both configurations, CFD (Computational Fluid Dynamics) simulations with the same set of boundary conditions are performed. The evaluation of the results shows the influence of each component on the three-dimensional structure of the flow. For different operating conditions, the flow inside the cavity is represented by streamlines and discussed in detail. In the cavity, the swirl distribution is shown for all configurations and compared to free vortex behavior. For some regions, where a strong decrease of total pressure is present, the flow pattern is described in detail. In view of the development of a 1D design method for a pre-swirl system, the described flow effects give some important hints.Copyright © 2007 by ASME
P‐232L: Late‐News Poster: New Results on Bistable Photoaligned Ferroelectric LCDs: Grey Scale Generation, Stabilization and Passive Driving Scheme

The principles for intrinsic greyscale generation and stabilization of bistable photoaligned FLCD are discussed and investigated. In order to realize these principles, the passive matrix driving scheme for FLCD is proposed and studied. Passive 160×160 matrix addressing photoaligned 5μm reflective FLC display (48mm×46mm) with high contrast and 4 memorized grey scale levels is demonstrated. Images can be saved for very long time without any power supply. 15V driving voltage is only needed to refresh information, which is impressive and desirable for low power consumption display such as PDA, e‐paper etc.
Recent progress of 40-GHz high-speed LiNbO3 optical modulator

This paper describes the recent progress and status of 40 GHz high-speed LiNbO3 optical modulators, and newly designed two types - a backslot type and ridge type - LiNbO3 optical modulators with high-speed and low-switching voltage. The backslot is formed on the backside of LiNbO3 substrate by using micro-machining laser etching. The backslot type modulator is designed, fabricated and characterized. The ridge type modulator with an overhanged upper electrode is also calculated. The properties of the designed two types modulators, effective refractive index for the modulation wave nm, modulation bandwidth fm, overlap integral and switching voltage V (pi) are calculated. The optimum properties of the backslot type modulator, fm equals 73GHz and the switching voltage V (pi) equals 2.8V is calculated, and fm equals 130 GHz and V (pi) equals 1.9 V is achieved for the ridge type modulator at a wavelength 1.5 micrometers . The fabricated backslot type modulator achieved the optical 3dB bandwidth fm >= 28 Ghz and the driving voltage V (pi) equals 2.8 V.
Operation of a medical waste incinerator and the emission control system

A two chamber starved air incinerator was equipped with an emission control system for controlling the particulate, HCl, heavy metals and dioxins/furans emissions from a regional medical waste incinerator facility. The batch operation of the incinerator creates a wide variation of the flue gas temperatures and flow rates. The flue gas after cooling also contains unburned hydrocarbons besides the high moisture content. The daily startup and shutdown of the incinerator concomitant with the misunderstanding of the characteristics of the flue gas from the incineration operation has resulted in overhauling the system in less than three months. After the introduction of the Tesisorb, a cake modifying agent, and the modification of the system operation, the system is now in good operation. The characteristic of the incinerator operation as well as the performance of the emission control system is discussed.
Envelope methods

An envelope is a relatively new construct for decreasing estimative and predictive variation relative to standard methods in multivariate statistics, sometimes by amounts equivalent to increasing the sample size many times over. Essentially a form of targeted dimension reduction that is descendent from sufficient dimension reduction, an envelope inherits its underlying philosophy from Fisher's notion of sufficient statistics. The initial development of envelope methods took place largely in the context of the multivariate linear model, resulting in response envelopes for response reduction, predictor envelopes for predictor reduction, simultaneous envelopes for response and predictor reduction and partial envelopes for specialized considerations, each demonstrating a potential for substantial reduction in estimative variation. These advances demonstrated that there are close connections between envelopes and some standard multivariate methods like partial least squares regression and canonical correlations. Subsequently, envelope methodology has been adapted and extended to diverse areas, including envelopes for regressions with matrix and tensor‐valued responses, envelopes for spatial statistics, quantile envelopes for quantile regression, Bayesian response envelopes. Sparse versions of response and predictor envelopes have also been developed. More generally, there is also envelope methodology for reducing the variation in any asymptotically normal vector‐valued estimator. These advances have opened a new chapter in multivariate statistics, allowing variation that is material to the goals of an analysis to be separated effectively from immaterial variation that serves only to confound estimation and prediction.
Digital Array Phasing

The extension of digital techniques to the problem of processing the output of an array of point receiving elements in an acoustic field has given rise to a method of phasing called DIMUS (digital multibeam steering). This digital technique incorporates the use of shift registers as delay line elements which results in a number of operational advantages. A description of the DIMUS technique is given. The effects of amplitude and time quantization imposed by the digital circuits are considered in the light of the relative signal processing gain of the array referred to an exact analog phasing network. The processing gain is computed as a function of sampling frequency for a number of types of signals.
Cost Effective Retrofit of Structures against the Effects of Terrorist Attacks – the Israeli Experience

The paper includes the description of the extensive Israeli practical experience in developing and implementing protective measures to strengthen existing structures. Much has been done recently to devise and implement protective hardening measures in new structures, such as preventing progressive collapse, minimizing the debris hazards, etc. However, much less has been done to strengthen existing structures, as this is considerably more difficult and more expensive, if at all feasible. As Israel has been constantly subjected to terrorist attacks for decades, a vast practical experience has been gathered from the observed damages to structures from real-life terrorist attacks. Learning from the effects of terrorist attacks on actual buildings, considerable efforts were made in Israel to develop cost effective and easy-to-implement retrofit protective hardening measures. Examples of various types of protective hardening measures implemented in existing structures are presented, as well as the SEPHRA (SEcurity Protection and Hardening Risk Analysis), developed by the author, resulting in the definition of the optimal cost effective protective retrofit measures.
Large arrays of chemo-mechanical nanoswitches for ultralow-power hydrogen sensing

A hydrogen sensor based on large arrays of nanoswitches in palladium (Pd) is presented. An individual nanoswitch is realized by a suspended Pd/Ti/poly-Si trimorph electrode and a fixed Pd/Ti bottom electrode, which are separated by a vertical nanoscopic gap of approximately 10 nm in size. In hydrogen exposure, the volume expansion of Pd results in mechanical bending of the suspended electrode and the formation of an electric contact. A multitude of nanoswitches is arranged in interconnected arrays. These enable a dependence of the sensor signal on the H2 concentration by the occurrence of percolation effects. The combined use of thin film, etching and evaporation techniques allows for the large-scale fabrication of nanoswitch arrays in arbitrary topologies by design, such as parallel linear chains or square lattices. The results of hydrogen and temperature measurements are presented and discussed. In hydrogen exposure, reversible changes in the electrical resistance of up to three orders of magnitude are obtained for H2 concentrations below 4% and a power consumption down to a few picowatts.
Hybrid image sensor with multiple on-chip frame storage for ultrahigh-speed imaging

A high-resolution hybrid visible imager, that is composed of a CMOS readout integrated circuit (ROIC) and a silicon photo-detector array, has been designed. The ROIC is fabricated with a standard 0.25 μm CMOS mixed-mode process with a back-illuminated silicon detector array that is produced at Rockwell Scientific Company (RSC) using RSC's HyViSITM process. The camera system is designed primarily to record images formed on a scintillator used in pulsed proton radiography experiments. In such experiments, the repetition rate of the proton beam can be as high as 2.8 MHz (358 ns). An imaging system with the desired 1440x1440 pixels resolution would result in an instantaneous readout rate in excess of 5.79 E12 samples/s. To address this issue we designed a pixel with three-frame in-pixel analog storage allowing for a deferred slower readout. The 26 μm pitch pixel imager is operated in a global shutter mode and features in-pixel correlated double sampling (CDS) for each of the three acquired frames. The CDS operation is necessary to overcome the kTC noise of the integrating node to achieve high dynamic range. A 65 fps continuous readout mode is also provided. The hybridized silicon array has close to 100% fill factor while anti-reflection (AR) coating maximizes its quantum efficiency at the scintillator emission wavelength (~415 nm). The ROIC is a 720x720, two-side buttable integrated circuit with on-chip 12-bit analog to digital converter (ADC) for digital readout. Timing and biasing are also generated on-chip, and special attention has been given to the power distribution of the pixel-array and snapshot signal buffers. This system-on-chip approach results in a compact and low power camera, an important feature to extend the number of imaged frames by synchronizing multiple cameras.
An Assessment Framework of Satellite Information Application Chain

It is difficult to assess the design of satellite information application chain, but it is very important to do it. In this paper, we try to assess the information flow instead of the whole designed satellite information application chain. For information exchange can reflects the main characters of satellite information application chain. The assessment of the information flow is much easier, and also reflects the design quality of satellite information application chain.
Short-term load forecasting for demand side management

A method for short-term load forecasting which would help demand side management is presented. This is particularly suitable for developing countries where the total load is not large, especially at substation levels, and the data available are grossly inadequate. It is based on the Kalman filtering algorithm with the incorporation of a 'fading memory'. A two-stage forecast is carried out, where the mean is first predicted and a correction is then incorporated in real time using an error feedback from the previous hours. This method has been used to predict the local load at 11kV and also the bulk load at 220kV. The results and the prediction errors are presented.
Fully integrated CMOS impulse UWB transmitter front‐ends with BPSK modulation

New fully integrated single‐chip impulse ultra‐wideband (UWB) transmitter front‐ends, integrating tunable impulse or monocycle pulse generator with bi‐phase shift keying (BPSK) modulator, has been developed using a standard low‐cost 0.18‐μm CMOS process. The monocycle pulse generator component produces 0.7–0.75 V peak‐to‐peak monocycle pulse with 140–350 ps tunable pulse duration. The impulse generator generates 0.95–1.05 V peak‐to‐peak Gaussian‐type impulse signal with 100–300 ps tunable pulse duration. The BPSK modulator controls the pulse generator to generate positive or negative pulse signal depending on the “1” or “0” digital data information. The pulse signals produced by the developed transmitters are useful for various UWB applications, especially those requiring the capability of changing ranges and resolutions using only a single system. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1609–1614, 2010; Published online in Wiley InterScience (www.interscience. wiley.com). DOI 10.1002/mop.25250