bluuebunny/crossref_metadata_2025_split huggingface dataset:
Chemical nickel plating on a SiO2 film of the silicon betavoltaic converter active window
Authors: Saikova S V , Evsevskaya N P , Lelekov A T , Kovalev I V , Zelenkov P V , Brezitskaya V V 
Published: December 2019

Abstract
In this work, nickel thin films were deposited on silicon and silicon dioxide by chemical deposition for creation a nickel-63 isotope beta radiation source on the active window of a silicon betavoltaic converter. The effects the samples pre-treatment and the process parameters on the nickel deposits quality were investigated. The practical recommendations for implementation of nickel plating and reuse of processed electrolytes are given.
Digital model for assessing strength of busbars and busbar supports located in a switchgear under the influence of electrodynamic force
Authors: Korzhov A V , Cherniavsky A O , Dziuba M A , Putenikhin D V , Kamynin A I 
Published: December 2019

Abstract
Short circuit current impact tests of busbar arrangements in switchgears are very expensive. There are publicized studies that propose the assessment of the impact using simple geometric constructions, but that approach fails to deliver good results. In this article, we propose a finite element method for analysis of mechanical movements in the context of short circuit current impact over the sinusoidal current period. The proposed method allows us to research different designs of switchgears without conducting full-scale tests. We can determine the parts of the model that will shift into unacceptable positions under the influence of short circuit current and promptly make changes to the model.
Intelligent systems for decision making during operation of technological oil and gas equipment
Authors: Zhukov V G , Bukhtoyarov V V , Bashmur K A , Tynchenko V S , Bukhtoyarova N A , Kukartsev V V 
Published: December 2019

Abstract
The problem of intellectualization of decision support during the operation of oil and gas well equipment is considered in the paper. It is proposed to implement an intelligent approach in the form of a multicomponent information system. Combining the subsystems of such an information system requires detailed study to integrate modern methods and algorithms for intelligent data processing. Based on the results of testing the methods on data sets from real operating field objects, data were obtained that testify to the possibility of using the considered approaches and the relatively high efficiency of the artificial neural network method and collective intelligent approach.
Analytical approach in determination of the surface layer parameters of machine parts hardened by a moving elastic indenter
Authors: Abulkhanov Stanislav , Khaimovich Alexander , Polyanskov Yuriy , Bobrovskij Sergej , Lukyanov Aleksey , Levitskih Olesja , Kuznetsova Olga 
Published: December 2019

Abstract
The reducing of machine time during surface hardening by smoothening is possible by increasing in the contact length between the hardening element and part surface. We study the case: the indenter-working surface is a fragment of a cylindrical surface, which the symmetry axis is parallel to the axis of symmetry of the part hardened surface. We suggest that such a process scheme is corresponds to a 2D contact problem in which a cylindrical stamp moves in an inertial coordinate system along an elastic half-plane (circle). We tasking the boundary conditions in the contact zone, using the complex potentials developed in the works of L.N. Galin.
Vertical Self-Defined Thin-Film Thermoelectric Thermocouples by Angled Co-Evaporation for Use in μTEGs
Authors: Yuan Y , Najafi K 
Published: December 2019

Abstract
This paper reports the development of a novel thin-film thermocouple structure and associated thermoelectric films for use in micro-thermoelectric generators. The proposed structure enables thermocouple length to be independent of film thickness in vertical thin-film μTEGs, allowing greater thermal resistances with thin-film designs while maintaining fill factor. In the presented structure, thermoelectric thin-films are evaporated over the sidewalls of high aspect-ratio columns. Thermocouple length is thus set by the height of the columns rather than the thickness of the deposited film. The process takes advantage of the shadowing of these columns to form N & P thermocouples on the left and right side of the columns. Also reported is development of thermally co-evaporated thin films Bi2Te3/Sb2Te3 onto vertical surfaces for use. Integration into proof of concept design TEG structure is briefly detailed.
Design and implementation of a soil profile probe powered by air and soil temperature differences
Authors: Ikeda Natsuki , Shigeta Ryo , Shiomi Junichiro , Kawahara Yoshihiro 
Published: December 2019

Abstract
In this paper, we present a novel approach to realizing a battery-free soil pro le probe that uses the temperature difference between the near-surface air and the underground soil as its power source. Temperature changes in the underground soil are slower than that in the near-surface air, and thus a large temperature difference exists between the near-surface air and the underground soil for most of the day. We develop a sensor prototype driven by a thermoelectric generator (TEG) that directly converts this temperature difference into electricity. Simulations are performed using real eld data, and results show that our prototype can harvest an average of several tens to several hundreds of microwatts. Because the typical sensing interval of a soil pro le probe is 1 h, the average power consumption (e.g., for a Texas Instruments CC2650) is about 5 µW, which is much lower than the expected amount of harvested energy. Furthermore, the results of an experimental implementation of the prototype proved that when the temperature difference between the near-surface air and the underground soil is only 3 K, which is much lower than the average temperature difference in an actual eld, the measured output power exceeds 80 µW.
A simple passive 390 mV ac/dc rectifier for energy harvesting applications
Authors: Santiago Rodriguez A , Garraud N , Alabi D , Garraud A , Arnold D P 
Published: December 2019

Abstract
This paper reports a simple, discrete, ac/dc rectifier architecture intended for magnetic energy harvesters that functions with ac input voltages as low as 390 mVpk. The proposed four NMOS rectifier (4NR) employs cross-connected, saturated-load NMOS inverters. The circuit is completely passive, exhibits good low-voltage performance, consists of only four components for small footprint, and requires no additional blocking diode to prevent power flow from the load. At 2 Vpk input, the 4NR exhibits a power efficiency of 93 % and 400 μW of output power. The 4NR is also successfully connected to an off-the-shelf TI BQ25504 dc/dc converter + battery management chip and shown to charge both capacitor and lithium-ion battery energy storage reservoirs.
GLOW-DISCHARGE ION SOURCE FOR ON-CHIP INTEGRATED MINIATURE MEMS MASS SPECTROMETER
Authors: Grzebyk T , Szyszka P , Górecka-Drzazga A , Dziuban J A 
Published: December 2019

Abstract
This work describes a construction, technology, working principle and properties of an ion source dedicated for a miniature MEMS mass spectrometer. It has been examined under what conditions it is possible to ionize gas sample, and to obtain a properly directed ion beam. The influence of such parameters as shapes, dimensions and distances between the electrodes, as well as the value of an applied magnetic and electric field and pressure level on the operation of the instrument have been investigated. The experiment allowed for choosing the optimal parameters, thus it seems that the ion source will fulfil all the requirements necessary for the MEMS mass spectrometer.
Low-cost, monolithically 3D-printed, miniature high-flow rate liquid pump
Authors: Taylor Anthony P , Velásquez–García Luis F 
Published: December 2019

AbstractWe report the design, fabrication, and characterization of the first monolithically 3D-printed, high-flow rate miniature liquid pumps in the literature. Our low-cost, leak-tight, miniature devices are microfabricated using 150 to 300 μm layers in pure Nylon 12 via fused filament fabrication with a multi-step printing process that monolithically creates all key features with <13 μm in-plane misalignment. Each pump has a rigid frame, a 21 mm-diameter, 150 μm-thick membrane connected at its center to a piston with an embedded magnet, a chamber, passive ball valves, and two barbed fluidic connectors. Pump fabrication under 2 hours and costs less than $4.65 (about $0.65 in printable feedstock). Finite element analysis of the actuator predicts a maximum stress of 18.7 MPa @ 2 mm deflection, i.e., about the fatigue limit of Nylon 12 for infinite life (i.e., 19 MPa). A maximum water flow rate of 1.37 ml/min at 15.1 Hz actuation frequency is calculated –comparable to reported values of miniature liquid pumps with up to two orders of magnitude higher actuation frequency.
Immobilization of glucose oxidase enzyme on NiAl-LDHs for application in microfluidic fuel cell and serotonin detection.
Authors: Galindo-de-la-Rosa J. , Araiza-Ramírez M.G. , Hernández-Torres A. , Ledesma-García J. , Arriaga L.G. 
Published: December 2019

Abstract
In this work, an enzymatic glucose oxidase (GOx) electrode immobilized on double layered hydroxides of NiAl (NiAl-LDHs) was developed for the detection of serotonin neurotransmitters that may be present in human blood samples and carry out the glucose oxidation present in this fluid for energy conversion, and can be applied as self-feeding electrodes in Lab-on-a-Chip devices. The self-feeding electrodes based on fuel cells have a very promising future in lab-on-a-chip devices because they do not occupy an external power source, their manufacturing processes are relatively simple and low cost, and can be developed for different applications such as the determination of biomolecules for diagnosis of various diseases.
A Tunable Hybrid SSHI Strategy for Piezoelectric Energy Harvesting with Enhanced Off-resonance Performances
Authors: Morel A , Pillonnet G , Badel A 
Published: December 2019

Abstract
In this paper, we propose a new electrical strategy for piezoelectric energy harvesting: the Tunable Hybrid SSHI. This strategy, inspired from the hybrid SSHI of Lallart et al., combines features of the parallel SSHI with a modified series SSHI. We prove analytically and numerically that with a fine combination of those two strategies, the harvesting bandwidth can be sensibly increased. Associated with a high coupling harvester, it is shown that the harvesting bandwidth is 3 times larger compared to the series and parallel SSHI.
Experiments on a wireless power transfer system for wearable device with sol-gel thin-film PZT
Authors: Truong Binh Duc , Wang Dixiong , Xue Tiancheng , Trolier-McKinstry Susan , Roundy Shad 
Published: December 2019

Abstract
This paper presents experiments on a low-frequency wireless power transfer system (WPTS) using a piezoelectric transducer with a magnet tip mass as a receiver. The thin-film piezoelectric bimorph cantilever is fabricated by sol-gel processing with the aim to miniaturize the system for wearable applications. The device couples an applied electromagnetic field to the mechanical transverse vibration of the beam, which then induces a voltage across a load resistance connected to the electrical ports. This coupled mechanism is therefore referred to as the magneto-mechano-electric (MME) effect. A power of 3.4 μW is generated in a resistance of 200 kΩ at a magnetic flux density of 100.3 μT. The potential of utilizing the same piezoelectric resonator for both energy harvesting and wireless power transmission modes is shown.
Performances of a cm-scale water flow energy harvester in real environment for autonomous flowmeters
Authors: Saoutieff Elise , Gasnier Pierre , Boisseau Sébastien , Ojer-Aranguren Javier , Rodot Isabelle 
Published: December 2019

Abstract
This paper reports the optimization and the characterization of a 4 cm diameter water flow energy harvester inserted in pipes. In this work, a test-bench has been implemented to measure the harvester’s electrical output powers, rotation frequencies and pressure losses. Furthermore, long-term tests have been carried out in a district heating and cooling system (DHCS) in order to validate its operation in a real environment. Output powers up to 490mW @ 9 m3.h−1 are reported with a mean output power of 5mW in real conditions (Montpellier’s DHCS in France). The pressure losses induced by the turbine and the energy extraction remains lower than 50 mbars which is among the lowest in the state of the art.
MEMS Energy Harvesting Based on Uniform-Stress Cantilever with Multilayer PZT Thin Films
Authors: Hirai S. , Kanda K. , Fujita T. , Maenaka K. 
Published: December 2019

Abstract
Multilayered piezoelectric MEMS energy harvesters based on sputtering depositions are designed and fabricated. To obtain high endurance and output power, the unimorph cantilever structure with totally 10 μm-thick multilayered PZT thin films and 80 μm-thick Si elastic layer is designed. In addition, the cantilever is designed to undergo a uniform stress on the PZT. The output power and voltage was 90 μW and 1.0 Vrms under the input acceleration of approximately 1.2 G (=11.76 m/s2) and optimum load resistance.
Triboelectric effect to harness fluid flow energy
Authors: Haque Rubaiyet Iftekharul , Arafat Amr , Briand Danick 
Published: December 2019

Abstract
We are reporting energy scavenging from fluid flows inside tubular structures using triboelectric effects. Two separate designs of triboelectric generators are proposed. A tubular design that uses liquid-solid interaction mechanism for water, and freestanding flapping films design utilizing contact-separation mechanism for wind flow energies conversions. The developed generators exhibit capabilities to produces power from fluid motions through the tube. Osmotic water having conductivity of 2.05±0.05 μS/cm provides higher triboelectric responses in comparison to tap water (conductivity of 322.0±2.0 μS/cm) flow. An average power of 37.4 μW for an osmotic water flow of82.5±0.5 cm3/s was generated for two pairs of triboelectric generators. Under a wind flow of 8.2±0.1 m/s and using three pairs of generators an average power of 144.8 μW was obtained across an optimum load resistance (RL
) of 7.6 MΩ.
Feasibility of a V-Shaped Magnet Rotor to Convert Vibration into Rotation
Authors: Clarkson D.J. , Kurmann L. , Moubarak G.N. , Jia Y. 
Published: December 2019

Abstract
Majority of the reported kinetic energy harvesting mechanisms involve translatory transduction mechanisms, which diverges from the long established rotary design for electromagnetic generators. A rotary design can offer a much smaller magnet-coil air gap and clearance guidance that translatory transducers simply cannot physically attain. Therefore, this research investigates the feasibility of implementing a V-shaped magnet rotor for the purpose of coupling base point excitation into rotation, which can eventually be coupled to a generator motor. It was also previously theorised that the nonlinear magnetic coupling can give rise to broadband nonlinear resonant behaviour. The resultant device aims to enhance the overall power conversion efficiency of the captured vibration energy.
Facile Fabrication of Silicon Micro/nanostructures for Microelectrodes by Silver-assisted Etching Using Nano-sponge as a Template
Authors: Chen Yueqi , Ruan Jian , Huang Jianhai , Qian Linmao , Jiang Shulan 
Published: December 2019

Abstract
With the gradual miniaturization and popularization of energy storage devices, electrode structures that seek better electrochemical performances and electrical properties have drawn attention. This paper reports a facile and cost-effective method for the fabrication of silicon micro/nanostructures for microelectrodes by silver-assisted etching using nano-sponge as a template. The silicon micro/nanostructures fabricated with the nano-sponge as a template exhibit better uniformity and stability compared with those fabricated without templates. And the silicon micro/nanostructures show good electrochemical performances which can be attributed to the good stability and large effective surface area. The proposed method of fabricating silicon micro/nanostructures is promising for large-scale and low-cost manufacturing, and the obtained silicon micro/nanostructures have great potentials to boost the electrochemical performances of micro energy storage devices.
Increased Piezoelectric Coupling Force in Autoparametric Excitation Harvester connecting to Self-powered Series and Parallel Synchronized Switch Harvesting on Inductor (SSHI) Interfaces
Authors: Asanuma H , Komatsuzaki T , Iwata Y 
Published: December 2019

Abstract
We experimentally investigate the relationship between the electromechanical coupling states, and the optimal resistive load, output power, and harvester’s displacement in the high output autoparametric excitation harvester connecting to the self-powered series and parallel synchronized switch harvesting on inductor (SSHI) interfaces. The piezoelectric coupling force increases as the acceleration and the resistive load increases, because the electromechanical coupling states enhances, as well as the piezoelectric voltage increases by the SSHI technique. The increased piezoelectric coupling force suppresses the harvester’s displacement, which leads to the shift in the optimal resistive load and the decrease in the output power. In our autoparametric excitation harvester, the parallel SSHI interface can achieve high output power at low acceleration, while the series SSHI can achieve high output power at high acceleration. The maximum output power of 3.1 mW was obtained at acceleration of 2.4 m/s2 (0.24G) by the series SSHI interface, from the overall harvester’s size 56×56×70 mm3.
Macroscopic Actuation for Deployable Microvalves: Coupling Mechanically While Isolating Thermally
Authors: Kelly C , Xie X , Dodge A , Livermore C 
Published: December 2019

Abstract
This paper presents the design and initial experimental validation of a system that couples macroscale actuations to a micro flow control system via a hydraulic coupler that isolates the actuator from the valve both spatially and thermally. The hydraulic coupling architecture is designed to enable flow control valves at MEMS length scales to employ macroscale actuation for effective valve sealing while still keeping the size of the valve itself much smaller than the size of the actuator. Lumped-element modelling shows that separating the sealing unit from its actuator can significantly increase the thermal isolation of the valve’s sealing unit from the ambient environment. This approach can enable the valve to be heated to minimize internal condensation with a minimum amount of required power. The manufacture of the hydraulic coupler is described, and its output actuation is measured as a function of input actuation. Finally, gas flow is successfully modulated via actuations that are delivered through the hydraulic coupler.
Low-voltage-driven electrostatic microspeakers with potassium-ion-electrets
Authors: Sano C , Menon V , Honma H , Hashiguchi G , Toshiyoshi H 
Published: December 2019

Abstract
Electrostatic microactuators require external DC biasing in order to achieve the widest possible range of displacements for a given AC input. This report proposes a novel microspeaker structure that utilizes a potassium-ion-electret to reduce the need for such DC voltage application. Electrets exhibiting quasi-permanent charges enable large fixed voltages to be integrated directly within the MEMS structure, acting as an ersatz DC bias. Prototype devices were fabricated and characterized to approximate the effects of electret incorporation on the device performance.
Performance of improved upland rice cultivars under farmer’s field condition in Banten province, Indonesia
Authors: Saryoko A , Kusumawati S , Pohan A 
Published: December 2019

Abstract
The use of improved upland rice (Oryza spp.) cultivars would be an alternative approach for improving rice production in Indonesia. The objectives of study were to identify cultivars with high yield potential and to determine its related traits. Five improved upland rice cultivars, namely Inpago 8, Inpago 9, Inpago 10, Inpago 11 and Inpago 12, released in 2011 to 2017 were observed under farmer’s field condition in Lebak district, Banten Province, Indonesia from September 2018 to January 2019. Grain yield, yield components, and biomass production and partitioning were measured at maturity stage. Grain yield of five cultivars showed higher performance than regional average yield performance. Grain yield performance was closely correlated with panicle number per m2. The Inpago 9 and Inpago 12 were greater in grain yield due to greater number of panicle as compared to other cultivars. Superior performance of Inpago 9 and Inpago 12 were also due to greater biomass production and better harvest index (HI). On the other side, smaller value of panicle number per m2 and HI of Inpago 11 resulted in lower performance in grain yield. In conclusion, panicle number, biomass production, and partitioning were some good traits in selecting adaptive cultivars. In addition, cultivars Inpago 9 and Inpago 12 are considerable to be chosen by the farmers in Lebak district, Banten Province to improve upland rice production.
Selecting the design parameters of hydrostatic control system for a long-base truck train
Authors: Abramov A M 
Published: December 2019

Abstract
For the delivery of long and bulky goods today long trailer trucks are used. In order to comply with the regulated maneuverability indicators, the semi-trailer of the truck train must be equipped with swiveling axles and an appropriate control system. Analysis of control systems for long-base truck trains showed that the most common today are hydro-volume control systems. The article describes the hydro volume control system of the pivot axles of the long-base truck train. The kinematic schemes and the description of the method for calculating the design parameters of the hydrostatic control system of a long-base truck are given.
The effect of generating reactive stresses in the spring elements of titanium nickelide
Authors: Belyakov V N 
Published: December 2019

Abstract
The article is devoted to the study of the effect of generation of reactive stresses in tension springs. The studies of the kinetics of generation and relaxation of these stresses in the TiNi alloy are presented. Regularities of the change in reactive stresses during long-term thermal cycling in the range of complete and incomplete MPs are considered. It was established that the level of reactive stresses depends on several factors, such as the degree of pre-deformation, the type of stress state, the stiffness of the opposing system, the strength properties of the alloy.
New way the determination of magnetostrictive parameters composite multiferroics using the magnetoelectric response
Authors: Filippov D A , Laletsin V M , Srinivasan Gopalan , Zhang Jitao , Tikhonov A A , Galichyan T A 
Published: December 2019

Abstract
The new way the determination of the thin films magnetostriction characteristics using the magnetoelectric response of composite multiferroic is supposed. The analytical expression for the magnetostriction coefficient using the field dependency of the magnetoelectric voltage coefficient is obtained. The experimental data for the bulk composite lead zirconate titanate – nickel ferrite is presented. It is shown, that the data, obtained by supposed way, are in good agreement with previous data, obtained by another way.