bluuebunny/crossref_metadata_2025_split huggingface dataset:
Water dissociation on mixed Co–Fe oxide bilayer nanoislands on Au(111)
Authors: Sun Zhaozong , Rodríguez-Fernández Jonathan , Lauritsen Jeppe V 
Published: February 2022

Abstract
We investigate the hydroxylation behaviour of mixed Co–Fe oxide nanoislands synthesized on a Au(111) surface under exposure to water vapour at vacuum conditions. The pure Co and Fe bilayer oxides both become hydroxylated by water exposure in vacuum conditions, albeit to a very different extent. It is however an open question how mixed oxides, exposing sites with a mixed coordination to Fe and Co, behave. By forming surface O species with a mixed Fe/Co coordination, we can investigate the nature of such sites. By means of scanning tunnelling microscopy and x-ray photoelectron spectroscopy, we characterize a series of Co–Fe oxides samples with different Fe contents at the atomic scale and observe a scaling of the hydroxylation degree with the amount of Fe inside the Co–Fe oxides. Our results indicate that the Fe dopants within the Co–Fe oxides have opposing effects on edge and basal plane sites modifying the maximum hydroxylation degree of pure cobalt oxide, perturbing the original binding sites of H, releasing the absorbed H or blocking the diffusion pathway of H.
Development of RE-Ba-Cu-O superconductors in the U.S. for ultra-high field magnets
Authors: Paidpilli Mahesh , Selvamanickam Venkat 
Published: February 2022

Abstract
High-temperature superconductors (HTSs) make it possible to achieve magnetic fields beyond the 23.5 T limit of low-temperature superconductors. For higher energy density, high-performance HTS with J
e > 1000 A mm−2 enables reduction in coil winding length and a smaller magnet size. Among HTS, REBa2Cu3O7−δ
(REBCO, RE = rare earth) exhibits excellent mechanical properties and superior performance over a wide range of temperatures and magnetic fields. REBCO tapes can be converted to various formats, including round wires. The state-of-the-art REBCO superconductors for ultra-high field magnets, including cable/wire architectures, are reviewed. R&D needs to address the remaining challenges with REBCO superconductors for ultra-high magnetic field applications is discussed.
Strategies to simulate dephasing-assisted quantum transport on digital quantum computers
Authors: Gallina Federico , Bruschi Matteo , Fresch Barbara 
Published: February 2022

Abstract
Simulating charge and energy transfer in extended molecular networks requires an effective model to include the environment because it significantly affects the quantum dynamics. A prototypical effect known as environment-assisted quantum transport (ENAQT) consists in the enhancement of the transfer efficiency by the interaction with an environment. A simple description of this phenomenon is obtained by a quantum master equation describing a quantum walk over the molecular network in the presence of inter-site decoherence. We consider the problem of simulating the dynamics underlying ENAQT in a digital quantum computer. Two different quantum algorithms are introduced, the first one based on stochastic Hamiltonians and the second one based on a collision scheme. We test both algorithms by simulating ENAQT in a small molecular network on a quantum computer emulator and provide a comparative analysis of the two approaches. Both algorithms can be implemented in a memory efficient encoding with the number of required qubits scaling logarithmically with the size of the simulated system while the number of gates increases quadratically. We discuss the algorithmic quantum trajectories generated by the two simulation strategies showing that they realize distinct unravellings of the site-dephasing master equation. In our approach, the non-unitary dynamics of the open system is obtained through effective representations of the environment, paving the way to digital quantum simulations of quantum transport influenced by structured environments.
Molecularly Imprinted Polymer Functionalized on Reduced Graphene Oxide Electrochemical Sensor for Detection of Ciprofloxacin
Authors: Chuiprasert Jedsada , Boontanon Suwanna Kitpati , Srinives Sira , Boontanon Narin , Polprasert Chongrak , Ramungul Nudjarin 
Published: February 2022

AbstractCiprofloxacin (CIP) is widely utilised to treat bacterial infections. Currently, CIP is present in water sources at higher concentrations, thus necessitating close monitoring. This study developed electrochemical nano-sensors based on molecularly imprinted polymer (MIP) and reduced graphene oxide (rGO) composites to detect CIP. rGO served as the loading platform for MIP immobilisation on a glassy carbon electrode (GCE). A copolymer thin film, comprised of polyaniline copolymerized with o-phenylenediamine (PAni-co-PDA) was obtained by electro-polymerisation utilizing cyclic voltammetry (CV) under suitable conditions. The performance of the modified GCE was examined utilizing CV mode in a hexacyanoferrate electrolyte as an electrochemical probe. The PAni-co-PDA/rGO-modified GCE exhibited enhanced improvement and efficient electrocatalytic behaviour in the oxidation of CIP with relatively high sensitivity and stability. The sensor was operated in differential pulse voltammetry (DPV) mode. Our best results revealed good linearity response to CIP in the range of 0.001–10.0 μM with an R-squared of 0.949, a detection limit of 0.09 μM (3.3 SD/S), and the calibration plot of ΔIminus the logarithm of the CIP concentration exhibited a sensitivity of –1.521. The sensor demonstrated a conductive polymer-based device that can be utilised for rapid CIP determination in pharmaceutical samples and biological fluids.
Regeneration of Ion-Exchange Resins and Granular Activated Carbon with the Sonochemical Technique for Enabling Adsorption of Aqueous Per- and Polyfluoroalkyl Substances
Authors: Sukeesan S , Boontanon S K , Boontanon N , Fujii S 
Published: February 2022

Abstract
Regeneration of adsorbents for reuse is crucial for reducing operating costs and maintaining sustainable systems. Few researchers have studied the regeneration of sorbents without using chemical solvents or appropriate methods. The purpose of this study was to evaluate the feasibility of the sonochemical technique (ST) for the regeneration of granular activated carbon (GAC), a mixed cation and anion resin (DOWEX MB-50), and an anion resin (IRA910) for the removal of per- and polyfluoroalkyl substances (PFAS). The ST was performed at 120 kW, and the power density was 250 W L−1 for 30 min. Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) were used to examine physicochemical properties of the spent adsorbents. The removal efficiency of the spent adsorbent regeneration occurred in the following order: DOWEX > GAC > IRA910. As the PFAS-adsorbed adsorbents disappeared in the spectrum, the FTIR results showed the existence of a sulfonic group that is similar to the peaks of virgin sorbents. However, this method affected the morphology of GAC and IRA910 but not DOWEX MB-50. Consequently, the ST is a potential alternative to chemical regeneration for DOWEX MB-50 resins. It is also a potential method for an eco-friendly approach to regenerate PFAS-adsorbed materials.
Three-Dimensional Effects of Torch Arrangement on the Thermo-Fluid Fields inside the Plasma Furnace
Authors: Wang Jianwei , Guo Manli , Wang Pingyang , Hang Guanrong 
Published: February 2022

Abstract
Numerical simulation was proposed here to investigate the three-dimensional effects of torch arrangement on the thermo-fluid fields inside the plasma furnace in a plasma medical waste treatment system. Different turbulence models were used and the simulation results were compared with previous measurement results. The effect of the torch arrangement on the flow and temperature fields was clarified by different rotary-cutting angles. It is shown that the torch arrangement affects strongly the thermo-fluid fields. An appropriate rotary-cutting angle is beneficial to safe and complete decomposition of the medical waste due to a more uniform temperature distribution inside the furnace. Besides, the life of the furnace would be greatly shortened for the case where the rotary-cutting angle is 0 ° because the thermal plasma jets converged in the central area of the molten pool and caused severe thermal shocks to the furnace throat.
Energy-Water Nexus Analysis Based on Input-Output Model: A Case Study of Fujian Province, China
Authors: Chen X P , Liu J , Chen L R 
Published: February 2022

Abstract
Energy and water are inextricably linked to each other. In this study, an input-output model (IOM) is advanced to analyze the consumption relationship between various energy-related water and water-related energy. IOM can not only confirm the mixture energy consumption and mixture water consumption, but also reflect the mixture energy and mixture water flow between sectors. Our major findings are: (i) Man (manufacture) is the main sector in terms of direct energy and water consumption; (ii) Agr (Agriculture) is the dominant direct water dedicator and Psp (Production and supply of electric, heating and gas) is the highest energy-related water consumption sector; (iii) energy consumption in water extraction processes is greatest (reaching up to 88.97%); (iv) water consumption of hydroelectric, thermal, nuclear and other forms of power generation is the heaviest consumption (reaching up to 96.52%); (v) Man (manufacture) is the main energy outflow and inflow sector (outflow: 2.01×1011 kwh, inflow: 2.56×1011 kwh); (vi) Agr is the largest provider of mixture water (outflow: 7.55×109 m3), Man (manufacture) is the largest receiver of mixture water sector (inflow: 9.88×109 m3).
Study of Urban Community Emergency Management in Huizhou, China
Authors: Tu Shiyu , Huang Guangwei 
Published: February 2022

Abstract
This paper focuses on the study of urban community emergency management in Huizhou, China. An index system for urban community emergency management evaluation which has two levels is established in the study. The index system consists of six primary indicators and twenty-two secondary indicators. The weights of the indicators are determined by using the Analytic Hierarchy Process (AHP). The established evaluation system is used to evaluate the emergency management ability of a community called Xuefu Community in Huizhou, China. Purpose sampling is used in the evaluation. A questionnaire with twenty-three questions is designed and all community staff are invited to answer the questionnaire. Fuzzy Comprehensive Evaluation method is adopted to calculate the scores and resulted are analysed. Suggestions are given to the Xuefu Community and local government based on the analysis.
3D PRINTING AND ITS ROLE DURING THE COVID PANDEMIC
Authors: Zainul Arefeen Mohammed , Bin Mehare Hussam , Hassan Murtaza Mohammad , Shamsi Mustafa 
Published: February 2022

Abstract
The current COVID-19 pandemic took the entire world by surprise, making us realize how far we had been lagging behind in the development of new technologies which makes the entire fabrication process more efficient and faster. During the pandemic, worldwide there was a shortage of basic medical equipments PPE kits, masks, syringes, ventilator pipes & masks, etc. All we needed at that time was a faster and more cost-efficient fabrication technology which would have kept pace with the growing demands of these basic equipments as the situation went from bad to worse. 3D-Printing, we believe is the future of the manufacturing and fabrication sector as it’s faster compared to our current technology and much more efficient when seen from an economic and an environmental point of view. In this paper, we have talked about how the COVID-19 pandemic wreaked havoc worldwide on their healthcare systems with thousands of people dying every day due to the lack of basic medical equipments. All these challenges could have been met head-on if the abilities of 3D Printing were exploited on a larger scale. We have tried to offer a brief insight into how 3D Printing can change our lives for the better and make it a lot easier once 3D Printing reaches its full potential.
Fabrication and Automation of Drilling Machine by Using Arduino
Authors: Nasir Khan Mohammad , Shadman Ansari Mohd , Ansari Md Irfan , Saifuddin  , Mukhtar Alam Mohd 
Published: February 2022

Abstract
For precision workpiece manufacturing, the system should have good dimensional accuracy and surface finish. In applications such as drilling, punching, marking, boring, tapping, etc., the workpiece is first positioned, and then the tool executes its action while the moving axis remains stationary. In the traditional method of such applications, manufacturers use very expensive CNC machines to program the cycle and perform the same work. Large manufacturers can afford such expensive machines, but for the small machinery manufacturing industry, we must consider low-cost solutions that can provide high-quality output. In this study, we tried to propose a low-cost design that can be used to achieve functions similar to CNC. By applying this machine in industry, multiple generations can be obtained in a short time. It is very difficult to estimate the drilling depth when manually drilling with a traditional drilling machine, and the work will usually fail due to over-drilling. In many cases, it is difficult to measure the depth after the drilling is completed; especially the depth of the fine hole cannot be measured. Therefore, an automatic drilling machine that performs the drilling function according to the generated drilling depth and transmitted to the control circuit is indispensable; therefore, undertaking the study, it exposed the technology of the dedicated drilling machine. The automatic drilling machine designed here is very useful for the mechanical workshop. The machine is built with power feed technology and is designed to drill the job to a certain specified depth.
Effects of different air inlet temperatures and regeneration air inlet velocities on the performance of Hybrid Desiccant Air Conditioning System
Authors: Hussain Taliv 
Published: February 2022

Abstract
A hybrid desiccant air conditioning unit is treated as an effective alternative to the conventional air conditioning system due to independent control of humidity, temperature, and eco-friendliness. The decrease in environmental impact and energy saving is more when the desiccant recovered by utilizing “free” thermal energy. This current work has experimented with a performance study of a hybrid desiccant air conditioning unit for typical humid and hot Indian (Aligarh) climatic conditions. Here, the effects of different air inlet temperatures at the process section, i.e. (28, 29.5, 31, 32.5, 34, 35.5 and 37°C) and regeneration section, i.e. (50-58.8°C) and different regeneration air inlet velocities (2.5 and 4.5 m/s) on the performance of hybrid desiccant air conditioning system are analyzed. Thus, optimization of performance parameters i.e. refrigerating effect, heat rejection rate, VCOP, ECOP, compressor work, dehumidification effectiveness, moisture removal capacity, DCOP, regeneration effectiveness and regeneration rate is identified for attaining maximum efficiency of hybrid desiccant air conditioning system under above operating states.
Study of Mechanical Properties of Concrete by Replacement of Natural Coarse Aggregate with Recycled Coarse Aggregate with Metakaolin
Authors: Singh Om Prakash , Mahendra Kr. Singar , Kant Pareek Ravi 
Published: February 2022

Abstract
This research work investigates the compressive strength of concrete specimens cured at the age of 7 & 28 days, the split tensile strength, and the flexural strength of concrete specimens cured at 28 days. Natural coarse aggregate (NCA) has been replaced with 0 percent, 25 percent, 40 percent, 60 percent, and 100 percent by RCA of construction & destruction (C&D) waste of 30-year-old building and Ordinary Portland cement (OPC) has been replaced with 10 percent metakaolin (MK).To understand the fresh properties of concrete of slump test was performed and to find satisfactory results. To analyze the hardening properties of MK with recycled coarse aggregate (RCA) base mix concrete, compressive strength was measured at the age of 7 and 28 days, and split tensile strength, the flexural strength was measured at the age of 28 days. Based on the experiment’s study, it can be concise that the 40 percent substitute of NCA with RCA carried good results with 10 percent MK. This research presents the effect of MK as a cement substitute on the properties of fresh and hardened with RCA.
Performance Analysis of High Speed and Low Power Binary Adders
Authors: Bhati Satyandra , Sharma Neeraj , Nag Meetu 
Published: February 2022

Abstract
In all the arithmetic operations, addition is one of the most important and initial operations used in most of the mathematical equations. The operation is performed by many adders present in the digital world. These adders give us carries with preferred delay and power. The three main features like structure, logic, and compact circuit layout help design a better adder. This Paper aims to analyse and compare various additions for high-speed, low-power and fast calculation. The various adder designs seen in digital signal processing applications require computationally efficient adding and cumulative operations, so blocks with the required attributes must be carefully selected. Various techniques have been proposed to design efficient adders in terms of performance, low power consumption and area. This work focused on 16-bit implementations of highly optimized area-efficient Ripple Carry Adders (RCA) and Look Ahead Carry Adders (LAC), and carry select Adder. Finally, we can prove that the Carry look ahead Adder is very fast in all existing designs. These processes are simulated and synthesized in all ISE Xilinx 14.7 software.
The Future of Machine Vision in Industries- A systematic review
Authors: Charan Allashyam , Karthik Chowdary Chundu , Komal Peddagowda 
Published: February 2022

Abstract
The Machine vision is the substitution of the human visual sense and judgment capabilities with a video camera and computer to perform an inspection task. It is the automatic acquisition and analysis of images to obtain desired data for controlling or evaluating a specific part or activity. Inspection of components using machine vision technologies provides solution for quality and process control. Now a days, Industry has huge demand for productivity improvement with the implementation of computer control automation. Machine vision reduces the scrap production due to non- conformity by controlling the manufacturing process through machine vision and to prevent the value addition for scrap product in subsequent stage of manufacturing process. The factory vision based industrial robot change the traditional way of mechanical assembly, quality control of product and rapid manufacturing. The various applications of machine vision technologies are automotive pharmaceutical, food and beverage, electronics, packages, and process control.
Development of antimicrobial/antioxidant nanocomposite film based on fish skin gelatin and chickpea protein isolated containing Microencapsulated Nigella sativa essential oil and copper sulfide nanoparticles for extending minced meat shelf life
Authors: Rasul Nabil Hussain , Asdagh Amirafshar , Pirsa Sajad , Ghazanfarirad Naser , Sani Iraj Karimi 
Published: February 2022

Abstract
Fish skin gelatin and chickpea protein isolated (G-CP) edible blend films incorporated with 0.25 and 0.5% copper sulfide nanoparticle (CuSNP) and microencapsulated Nigella sativa essential oil (MNEO) (0.015 and 0.03%, w/w of protein) were prepared and optimized by the response surface methodology based on the central composite design (RSM-CCD). Antimicrobial activity, infrared spectroscopy (FTIR), x-ray diffraction (XRD), morphological characteristics and thermal attributes of composite films were examined. In general, the effect of CuSNPs and MNEO on the properties of blended films, besides their inherent nature, is related to their interactions with the protein matrix and the synergistic effect on each other. As authenticated by the FTIR and XRD, the simultaneous use of CuSNPs and MNEO because of the synergistic effect of CuSNPs on the antibacterial attributes of MNEO and raising the content of antimicrobial components in the blend film expressed the highest antimicrobial functionality against E. coli. and S. aureus. Also, the results of microbiological and chemical tests of packaged minced meat revealed that the simultaneous use of MNEO and CuSNP in the film has a positive synergistic effect in increasing the storage life of minced meat, as compared to the other samples.
Effects of film thickness and annealing temperature on the properties of molybdenum carbide films prepared using pulsed direct-current magnetron sputtering
Authors: Wu Zhenqing , Zhao Jiaoling , Zhu Meiping , Guo Sheng , Liu Tianbao , Du Wenyun , Shi Jun , Zeng Tingting , Shao Jianda 
Published: February 2022

Abstract
Molybdenum carbide (Mo2C) films were prepared using pulsed direct-current (DC) magnetron sputtering. The effects of film thickness on the phase structure, surface morphology, and optical constants of the films were examined using X-ray diffraction (XRD), atomic force microscopy, and extreme ultraviolet reflectivity. XRD analysis showed that the as-sputtered films with thicknesses between 30 nm and 150 nm were almost amorphous. New phase α-MoC1-x with the (111), (200), (220), (311), and (222) crystal planes appeared in films with thicknesses between 200 nm and 400 nm. The phase transition and chemical composition of the Mo2C films treated using vacuum heat treatment were analyzed in detail. For 150 nm-thick films, the as-deposited as well as the 600 °C-annealed films were amorphous. The phase structures of the 150 nm-thick film annealed at 700 °C, 750 °C, and 800 °C were orthogonal Mo2C (α–Mo2C), multiphase structure (β–Mo2C, monoclinic MoO2, and cubic Mo2N), and monoclinic MoO2, respectively. X-ray photoelectron spectrometry revealed that the Mo-Mo bonds of the films transformed into Mo-C, Mo-O, and Mo-N bonds under 750 ℃-annealing, further confirming the formation of a multiphase structure after annealing. Thus, film thickness and annealing temperature considerably influence the properties of Mo2C films.
Surface wave elastography using high speed full-field optical interferometry
Authors: Singh Amandeep , Kumar Pawan , Yeleswarapu Sriya , Pati Falguni , John Renu 
Published: February 2022

Abstract
The assessment of mechanical stiffness is an essential diagnostic tool for investigating the biomechanical properties of biological tissues. Surface wave elastography (SWE) is an emerging technique to quantify elastic properties of tissues in clinical diagnosis. High-speed optical imaging combined with SWE has enormous potential in quantifying the elastic properties of tissues at microscale resolutions. In this study, we implement surface wave elastography using high-speed optical interferometry to characterize the elastic properties of tissue-mimicking phantoms and ex-vivo native caprine liver tissue by imaging the surface wave induced by an electromechanical actuator. The sinusoidal mechanical excitations ranging from 120 Hz to 1.2 kHz on the surface of tissues are captured using a high-speed camera with a frame rate of 4 kHz at micrometer resolutions. The surface wavefront reconstruction is performed using a phase-shifting algorithm and linear regression is used to calculate the surface wave velocity. The mechanical stiffness estimated from the optical system is compared with the results of mechanical compression testing measurements. The results from this multimodal platform combining optical interferometry and vibrational spectroscopy using SWE are highly promising towards a non-invasive or minimally invasive imaging for in-vivo and ex-vivo mechanical characterization of tissues with future clinical applications.