bluuebunny/crossref_metadata_2025 huggingface dataset:
Engineered protein-based functional nanopatterned materials for bio-optical devices
Authors: Sanchez-deAlcazar Daniel , Romera David , Castro-Smirnov Jose , Sousaraei Ahmad , Casado Santiago , Espasa Anna , Morant-Miñana María C. , Hernandez Jaime J. , Rodríguez Isabel , Costa Rubén D. , Cabanillas-Gonzalez Juan , Martinez Ramses V. , Cortajarena Aitziber L.
Published: August 2019

A simple approach for the fabrication of functional nanopatterned protein materials using protein engineering and soft-nanolithography and its implementation in optical devices based on distributed feedback (DFB) laser phenomena.
Ozone generation mechanism over phosphorus and the impact of H2O with density functional modeling
Authors: Song Xin , Sun Lina , Ning Ping , Wang Chi , Sun Xin , Yin Liangtao , Li Kai
Published: August 2019

The generation of P–O was a continuous process but was not conducive to generate O3 and a free O atom.
Revealing non-crystalline polymer superstructures within electrospun fibers through solvent-induced phase rearrangements
Authors: Morel Alexandre , Oberle Sophie C. , Ulrich Sebastian , Yazgan Gökçe , Spano Fabrizio , Ferguson Stephen J. , Fortunato Giuseppino , Rossi René M.
Published: August 2019

Visualizing the inner architecture of electrospun nanofibers at a nanoscale level provides a detailed understanding of their formation process and the resulting mechanical properties.
Trapping and filtering of light by single Si nanospheres in a GaAs nanocavity
Authors: Huang Yingcong , Yan Jiahao , Ma Churong , Yang Guowei
Published: August 2019

The arbitrary manipulation of optical waves in the subwavelength dimension is a fundamental issue for the microminiaturization and integration of optic parts.
An ultrathin bacterial cellulose membrane with a Voronoi-net structure for low pressure and high flux microfiltration
Authors: Tang Ning , Zhang Shichao , Si Yang , Yu Jianyong , Ding Bin
Published: August 2019

A BC membrane with a stable Voronoi-like nanonet layer was prepared by evaporation-induced self-assembly and chemical cross-linking for high performance microfiltration.
Correction: Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps
Authors: Chen Yali , Yu Binxun , Gou Jing , Liu Shengzhong Frank
Published: August 2019

Correction for ‘Zero-thermal-quenching and photoluminescence tuning with the assistance of carriers from defect cluster traps’ by Yali Chen et al., J. Mater. Chem. C, 2018, 6, 10687–10692.
Classification of Infant Vocalizations by Untrained Listeners
Authors: Ramsdell-Hudock Heather L. , Warlaumont Anne S. , Foss Lindsey E. , Perry Candice
Published: August 2019

Purpose

To better enable communication among researchers, clinicians, and caregivers, we aimed to assess how untrained listeners classify early infant vocalization types in comparison to terms currently used by researchers and clinicians.

Method

Listeners were caregivers with no prior formal education in speech and language development. A 1st group of listeners reported on clinician/researcher-classified vowel, squeal, growl, raspberry, whisper, laugh, and cry vocalizations obtained from archived video/audio recordings of 10 infants from 4 through 12 months of age. A list of commonly used terms was generated based on listener responses and the standard research terminology. A 2nd group of listeners was presented with the same vocalizations and asked to select terms from the list that they thought best described the sounds.

Results

Classifications of the vocalizations by listeners largely overlapped with published categorical descriptors and yielded additional insight into alternate terms commonly used. The biggest discrepancies were found for the vowel category.

Conclusion

Prior research has shown that caregivers are accurate in identifying canonical babbling, a major prelinguistic vocalization milestone occurring at about 6–7 months of age. This indicates that caregivers are also well attuned to even earlier emerging vocalization types. This supports the value of continuing basic and clinical research on the vocal types infants produce in the 1st months of life and on their potential diagnostic utility, and may also help improve communication between speech-language pathologists and families.
Decentralised self‐healing model for gas and electricity distribution network
Authors: Vazinram Farzad , Effatnejad Reza , Hedayati Mahdi , Hajihosseini Payman
Published: August 2019

With regard to the global environmental challenges, low cost of the natural gas and fast developing of new gas‐fired power generation technologies, conduce to unwanted integration of gas and electricity network. Moreover, one of the benefits of emerging distribution network as microgrids (MGs) would be self‐healing capability. So, in this research a model has been formulated as Mixed Integer Linear Programming (MILP) problem which determines optimally the power generation of micro turbines (MTs), Energy Storages (ESs) and Combined Heat and Power (CHP) units during the normal operation of MGs with consideration of combined gas and electricity network. In case of fault occurrence in MG/MGs and need to compensate the power generation shortage the model determines the power transferring rate of all MGs with normal operation mode, adjacent to the faulty MG/MGs, according to the cost‐based optimization. In critical situations load shedding procedure will be applied to the faulty MG/MGs. It would be considered that CHPs supply both heat and electricity loads and the remaining heat demands will be supplied by natural gas network. The proposed model has been applied to the test system with six MGs as three scenarios and also verified by applying to the network with 30 MGs.
Hourly electricity and heat Demand Response in the OEF of the integrated electricity‐heat‐natural gas system
Authors: Massrur Hamid Reza , Niknam Taher , Fotuhi‐Firuzabad Mahmud , Nikoobakht Ahmad
Published: August 2019

Recently, demand‐response (DR) programmes are one of the appropriate tools for energy systems to encourage flexible customers to participate in the operation of energy systems. One of the complex tasks in multi‐energy environments is optimal energy flow (OEF) problem of these systems. In this regard, this study investigates the OEF of an integrated electrical, heat, and gas system considering flexible heat and electrical demands. The conventional DR programme has been combined with the demand‐side energy supplying management activity by introducing switching concept among input energy carriers. The way of the supplying energy of flexible customer can be changed by switching among input energy carriers. Here, the integrated system operator minimises the system operation costs subject to supply flexible consumers’ energy. To solve the complex OEF problem, this study presents a new optimisation algorithm named modified biogeography‐based optimisation (BBO) algorithm. In this study, the proposed modification for the original BBO increases the robustness and the capability of the proposed optimisation method. The numerical results show that the flexible DR programme creates smoother energy demand curves in heat and electrical networks and reduce the operating costs of the integrated system.
Effect analysis of antenna translation vibration on GEO SARimage
Authors: Zhang Tianyi , Lv Zheng , Yin Wei , Ke Meng , Li Gen , Ding Zegang
Published: August 2019

Due to the high orbital altitude, the large‐area antenna and solar array will be utilised in geosynchronous synthetic aperture radar (GEO SAR) to meet the requirement of high transmitting power. However, the large‐area antenna and solar array can easily cause antenna translation vibration (ATV) and further result in paired echo, which will seriously affect the GEO SAR image quality. Existing effect analyses of antenna vibration for low‐earth‐orbit SAR (LEO SAR) based on the linear trajectory and the corresponding second‐order Doppler spectrum cannot be applied in GEO SAR because of its extremely long synthetic aperture time (SAT), curved trajectory, and corresponding high‐order Doppler spectrum. To analyse the effects of ATV on GEO SAR image, the ideal echo signal model and the corresponding point spread function (PSF) of GEO SAR are first established and deducted, respectively. Then, the echo signal model and PSF affected by ATV are obtained. Based on the affected PSF, the effects of the ATV on GEO SAR image are analysed in detail, and the basis for subsequent ATV suppression is also obtained. Computer simulations validate the correctness of the analyses shown here.
Stellar population astrophysics (SPA) with the TNG
Authors: Origlia L. , Dalessandro E. , Sanna N. , Mucciarelli A. , Oliva E. , Cescutti G. , Rainer M. , Bragaglia A. , Bono G.
Published: August 2019

Aims. The Scutum complex in the inner disk of the Galaxy hosts a number of young clusters and associations of red supergiant stars that are heavily obscured by dust extinction. These stars are important tracers of the recent star formation and chemical enrichment history in the inner Galaxy.

Methods. Within the SPA Large Programme at the TNG, we secured GIANO-B high-resolution (R ≃ 50 000) YJHK spectra of 11 red supergiants toward the Alicante 7 and Alicante 10 associations near the RSGC3 cluster. Taking advantage of the full YJHK spectral coverage of GIANO in a single exposure, we were able to measure several hundreds of atomic and molecular lines that are suitable for chemical abundance determinations. We also measured a prominent diffuse interstellar band at λ1317.8 nm (vacuum). This provides an independent reddening estimate.

Results. The radial velocities, Gaia proper motions, and extinction of seven red supergiants in Alicante 7 and three in Alicante 10 are consistent with them being members of the associations. One star toward Alicante 10 has kinematics and low extinction that are inconsistent with a membership. By means of spectral synthesis and line equivalent width measurements, we obtained chemical abundances for iron-peak, CNO, alpha, other light, and a few neutron-capture elements. We found average slightly subsolar iron abundances and solar-scaled [X/Fe] abundance patterns for most of the elements, consistent with a thin-disk chemistry. We found depletion of [C/Fe], enhancement of [N/Fe], and relatively low 12C/13C <  15, which is consistent with CN cycled material and possibly some additional mixing in their atmospheres.
Use of sound spectral signals analysis to assess the technical condition of mechanical devices
Authors: Maciąg Paweł , Chałko Leszek
Published: August 2019

The article presents the results of a part of research conducted by the authors into a wide range of work on automation of public safety systems. Their main purpose is to create, on the basis of sound signals analysis, system of warning against the use of firearms monitored public places not only at the time of shooting, but at the stage of preparing - the firearm reloading process. The range of acoustic measurements presented in the article and their analyzes included variability of sound emission of selected type of firearms depending on the number of operations and thus the degree of wear. Analysis of the recorded data will allow in the future to develop a system enabling not only to determine a type of firearm or tp narrow down the search area of individual specimens, but also to determine the degree of wear in terms of suitability for further use. The results discussed in the article correspond to two states of the same firearm model. The first is the initial state from the manufacturer’s factory after returning 50 control shots, the other after over 20,000 cycles. The used firearm was technically fully efficient, with no need to replace the elements during operation as well as tests. The presented scope of measurements includes spectral analysis of sound in the near field and time analysis of sound emission levels in the successive operation phases of the firearm mechanisms.
Mechanical properties of Methacrylic Plexus MA300 adhesive material determined in tensile test and butt joints of aluminum thick plates
Authors: Maćkowiak Paweł , Płaczek Dominika , Sołtysiak Agnieszka
Published: August 2019

Adhesive joints are an alternative method of joining elements. New adhesives achieve cohesion and adhesion strength comparable with plastics used for structural components and coatings. Bonding is faster, simpler and cheaper. For this reason, adhesive joints are increasingly replacing other types of connections. Tests show that the material properties in the cast adhesive specimens differ from the ones determined in the joint. Adhesive producers most often describe the strength of the overlap joint tested in accordance with ASTM D1002. Strength, modulus of elasticity and elongation to break tested in accordance with ASTM D638 are reported less frequently. The article presents a method for determining the mechanical properties of the adhesive in a butt joint and differences in the determined values in relation to the cast specimens on the example of methacrylic adhesive Plexus MA300. The tests were carried out for joining aluminium rod with a square cross-section of 15 mm x 15 mm and adhesive layer thickness of approximately 1 mm. The fractures of cast specimens and butt joints were analyzed.
Determining efficiency of cycloid reducers using different calculation methods
Authors: Matejic Milos , Blagojevic Mirko , Cofaru Ileana Ioana , Kostic Nenad , Petrovic Nenad , Marjanovic Nenad
Published: August 2019

Cycloid reducers are gear trains which can be classified as planetary transmissions. These transmissions have a very wide range of uses in industry in transporters, robots, satellites, etc. This research presents a comparative analysis of three analytical methods for determining cycloid drive efficiency. The paper explores every mathematically formulated method and compares them to experimental results from literature. The presented methods for determining efficiency have a common property, in that they all determine losses due to friction on the bearing cam surface of the shaft, the rollers of the central gear and the output rollers. The calculation of efficiency values is done for standard power values. The methods differ primarily in the way they calculate losses. For each method of calculating efficiency there is an analysis of pros and cons. The paper concludes with suggestions as well as possible directions for further research.
Adhesion between the bed and component manufactured in FDM technology using selected types of intermediary materials
Authors: Płaczek Dominika
Published: August 2019

FDM technology (Fused Deposition Modeling) is a popular form of additive manufacturing of elements. The development of this technology is related to the need of achieving high accuracy of products and shortening the time of manufacturing. Despite the through of advantages, FDM technology involves several technological problems. One of them is the phenomenon of detaching created element from the bed of the device as a result of processing shrinkage. One of the methods of increasing the adhesion of elements to the bed is the use of glued intermediate materials. Among the available options, there are tapes dedicated to FDM technology, such as adhesive pads. In addition, they are used Kapton and cheaper, cellulose tapes. The article presents the method of testing the adhesion force between element and bed of the device producing in FDM technology and obtained values for the use of various types of intermediary materials. The specimens were made of one of the most commonly used material - PLA. A glass bed was used for the test. The results were compared with values of adhesion force for elements produced on a smooth, uncoated bed. The method and research results allow to compare and select the appropriate method based on empirically determined values.
Contactless power transfer application for devices identification
Authors: Pușcașu Samuel
Published: August 2019

This paper deals with the problem of non-contact power transfer systems to identify components based on infrared signatures reading. This approach enables the distinction of a larger number of different devices situated in a relatively small area, compared to RFID technology. Moreover, the presented infrared contactless identification is resilient to natural environmental infrared perturbations. The advantages of this approach are demonstrated in a simple use-case: continuously identifying low consumption chess pieces on a custom chessboard. This approach can be further instantiated for high consumption devices such as electrically charging small autonomous guided vehicles.
Aspects relating to the reliability calculation of the cutting-teeth mounted on the bucket wheel excavators used in lignite mining
Authors: Tomuş Ovidiu-Bogdan , Andraş Andrei , Jula Dumitru , Dinescu Stela
Published: August 2019

The paper deals with the calculation of the operational reliability for the cutting-teeth mounted on bucket wheel excavators used in lignite extraction in the Oltenia Basin. Based on the data recorded for three types of cutting-teeth used in production, a reliability study has been carried out which determines the main reliability indicators of the quality level of these cutting-teeth. The study compares the constructive and functional characteristics of the three types of cutting-teeth, which is the basic criterion for purchasing a certain type of cutting-tooth, as well as for the supply of spare parts.
The possibility of cutting shapes on CNC machine tools
Authors: Paszta Piotr
Published: August 2019

The development of computer technology has enabled it to be introduced to machine tools. The widespread use of CNC machine tools has resulted in a rapid development of the processing industry. So far, obtaining the profile of the curve has required the use of a complicated machine tool kinematic design, or it has been impossible to implement it otherwise than by copying. The numerical control of machine tools is based on the mathematical description of motion. This provides the capability to form curves of the same shape but with different dimensions using parametric programs. The article describes the practical use of parameters in machining on an FYS milling machine with Mitsubishi control.
Current Experience with Application of Metal-based Nanofertilizers
Authors: Heinisch Martin , Jácome José , Miricescu Dan
Published: August 2019

Agriculture is one of the many fields in which nanotechnology is currently applied. At the nano-scale, materials exhibit different properties mainly due to the reduced molecular size which allows different interactions between molecules. Nowadays, the agricultural sector demands methods that not only increase crop productivity, but are also sustainable and produce less environmental impact. Large-scale application of chemical fertilizers is common in farming with the aim of increasing productivity. The use of large doses of fertilizers, however, causes more harm than good. Chemically intensive agriculture disturbs the soil-mineral balance, pollutes soil, water and air, and makes lands less fertile in the long-term. Metal-based nanofertilizers allow effective and precise nutrient management due to their high reactivity, enhanced bioavailability and bioactivity. This paper presents the results derived from the application of metal-based nanofertilizers in different crops of economic relevance, displaying their importance in sustainable agriculture. The trials showed that the metabolic reactions in the plants are enhanced by providing them with the optimum amount of trace elements, which also improves the rate of photosynthesis, increases productivity, and prevents biotic and abiotic stress.
The Usage of the Johnson-Cook Constitutive Model in the Finite Element Analysis of the Caulking Process
Authors: Rodean Claudiu , Beju Livia-Dana , Rusu Gabriela , Popp Mihai
Published: August 2019

The present paper highlights the importance of generating a model for analysing the caulking process. The caulking operation is a fast, cost-efficient, cost-effective way of assembling, which is currently less studied in world-wide papers. The operation is at the border between plastic deformation and cutting process. It is therefore necessary to create a model to describe the process. In the paper are presented the main examples of applications, the main parameters that characterize the process, the current state of the cutting and plastic deformation models. After the analysis we concluded that the most valuable model for describing plastic deformations is the Johnson-Cook model. This information is the basis for developing a model for describing the caulking process.
Study of aortic dissections treatment. Segmentation, simulation and valiadation of surgical results
Authors: Bucurenciu Cristian , Costache Victor S , Cândea Gabriela S
Published: August 2019

Nowadays, Computational Fluid Dynamics (CFD) it’s seen as the new trend in the management of aortic pathologies. Together with visualization capabilities of cardiovascular magnetic resonance (CMR) and computed tomography (CT) imaging, real time segmentation (volumetric) models further used as meshes in Computational Fluid Dynamic supply to the clinicians an innovative and extensive decision-making system. In the present paper, we identified and analysed the clinical indicators (lumens diameters, fenestrated area and blood volume) monitored by clinicians to evaluate the patient’ condition before and after the intervention. In order to achieve the targeted aims, we used CT scans as input data (segmented with MIMICS software) and output 3D models (3matic), further processed to mesh model in ANSYS software. Computational results validate the improved patient’ condition, meaning the blood velocity tend to have values to normal flowing conditions. As a conclusion, the linear modification of velocity can be used in further investigations as an input value of pathology treatment
An Efficient Procedure for Materials’ Marking in Metallic Constructions Industry Based on QR Codes
Authors: Riurean Simona
Published: August 2019

The quality standard SR EN 1090:2012 requirements enforce a maximum consistency both on the metallic construction manufacturing process and during all the additional stages till the construction site becomes a final product ready to be used. Any lack of attention during this complex manufacturing process might drive to different classes of damage consequences due to minor or major nonconformities. Therefore, among other important procedures, I refer here to the importance of marking both the raw materials (as part of the final product) and leftovers (as part of future work) resulted from the cutting process. I propose in this paper a specific database and a simple marking procedure based on QR codes. The database consists of detailed descriptions of all kind of metallic materials with different shape, structure and quality as well as all important information extracted from the quality certificate 3.1. that accompanies the goods once they arrive into the manufacturer’s storage. Since the standard underlines the necessity to identify any material during work processing, the system allows conversion of large text with important data into a QR code that can be scanned and therefore the material quickly identified into the manufacturer’s workshop.
Measurement system analysis by attribute, an effective tool to ensure the quality of the visual inspection process within an organization
Authors: Simion Carmen
Published: August 2019

A successful quality assurance program in any organization needs good measurement systems. The concept of measurement system refers to the manpower, machines, materials, methods and mother nature involved in obtaining measurements. Measurement system analysis (MSA) is a set of procedures which are used to determine the amount of variation due to the measurement system and if the measurement data are valid. Most problematic measurement system issues come when the results of a measurement system are qualitative values such as “pass” or “fail” (attribute data) rather than quantitative values (variable data). Because in industry many measurement systems deal with qualitative data, the assessment of the visual inspection process is a contemporary approach for quality assurance in most manufacturing organizations. The aim of this paper is to apply the MSA attribute study in a local company from the Sibiu region supplying products for automotive industry, to ensure the quality of the visual inspection process for one of their parts, respectively the exterior lighting projectors (Day Running Light, DRLs). The output data were analyzed using Minitab software. The conclusion was that the visual inspection process must be improved by appraisers training and developing panel with samples for the most common defect types of DRLs.
Retracted Article: Road Traffic Monitoring System with Self-Learning Function using the Raspberry Pi Platform
Authors: Rus Cosmin , Marcuş Răzvan , Stoicuța Olimpiu
Published: August 2019

The authors, Cosmin Rus, Răzvan Marcuş and Olimpiu Stoicuța, regret that this article is an accidental duplication of an article that has already been published: https://www.mathworks.com/matlabcentral/fileexchange/52456-analyzing-trafficusing-a-webcam-a-raspberry-pi-and-thingspeak. The duplicate article has therefore been withdrawn. The Guest Editors have given their approval for this decision.
Technical and commercial communication methods used in semi-finished industrial goods market in South East European markets
Authors: Székely Szilárd , Cioca Lucian-Ionel , Benedek Adriana
Published: August 2019

South East European industrial markets are crossing a period of strong development. This progress is also strongly felt by industrial suppliers, including semi-finished non-ferrous metal products traders. Industrial marketing presents a lot of features which differs from the consumers marketing. Analyzing these markets one can observe an increased communication between sales teams and buying centers. This communication has two major line: technical and commercial. Buying teams, which include very often engineers, need special, detailed and customized technical information related to products, delivery and payment conditions etc. The clarity and efficiency of this communication is one of the key factors of commercial success on industrial markets. In our paper we intend to analyze the communication methods, channels preferred on the mentioned markets, focusing on the interaction of personal and digital communication and other issues which are specific for industrial marketing. Research methods include: on site observations of sales teams, back office analyses of industrial suppliers’ websites, professional in-depth interviews. Our goal is to deeply understand the trends and interactions of different communication methods and channels on this field and to propose new concepts in order to improve this communication.
Comparative study regarding the wear of gearwheels manufactured through additive technologies
Authors: Besnea Daniel , Rizescu Ciprian , Moraru Edgar , Dinu Elena , Panait Iolanda
Published: August 2019

The article presents the results of the experimental research on the wear of gearwheels manufactured by an additive technology. It was realized eight gearwheels with the same module and number of teeth by means fused deposition modelling technology from different materials, including PLA, ABS, CarbonFil, nylon. In order to determine the teeth wear, pitting, thinning of teeth at the base in a gear that requires a continuous and constant operation, a demonstration set-up was designed and realized to highlight the mechanical loads of the eight gearwheels made by additive technologies.
Effect of the aging process at a temperature of 300 degrees Celsius of Ti6Al4V alloy on mechanical strength under static loading conditions
Authors: Wirwicki Mateusz
Published: August 2019

Conventional construction of components is slowly being replaced by rapid prototyping and the use of DMLS technology. The development of DMLS requires conducting experimental studies that build a knowledge base that allows for the averaging of mechanical properties. verification of how the initiation of the crack occurs in the material and how the energy is propagated in the samples that were made by a conventional method compared to the samples, where the method of sintering titanium layers will be used. The literature analysis showed no research results relating to the impact of values of strength parameters on the structure of materials produced by the DMLS method. Titanium samples made with the additive method and the conventional titanium grade 5 Ti6Al4V titanium method, which is used, among others, in medicine, were used for the tests. The article presents the influence of material structure on mechanical properties (Re, Rm, A, Z). The presented research is preliminary research defining the properties of the material, which are gaining more and more application by using the DMLS method in the construction of machines and in medicine.
Correlation of Gas Quality with Hydrodynamic Parameters in Transmission Networks
Authors: Eparu Cristian Nicolae , Neacsu Sorin , Neacsa Adrian
Published: August 2019

Natural gases are a mixture of hydrocarbons. Their composition determines the basic variables that need to be taken into account in the calculation of transport or gathering systems. In the daily operation of gas gathering and transport networks, the available composition measured by online systems is reduced. In the usual composition a pseudo-component called C6+ (or C7+) is used. If this component is defined from the complete chromatograph analysis of gas, the properties are established through a lumping procedure. Online chromatographic analysis is done on a small group of basic components, usually for heavy components by introducing a pseudo-component, in this paper called C6+. In this paper we will show how to determine the properties of the pseudo-component according to the measured density of the mixture and its dynamics through the network. Generally, transport networks operators are interested in operating them so as to maximize the benefit and reduce any penalties. For this they have SCADA systems, which provide information on transport parameters and gas quality at the monitored points. The overall picture of the network and its short and medium-term evolution is achieved with a powerful simulator. Managing the gas quality from the entry points to the exit points must be made dynamically by the simulator. In this paper we will present results obtained with the ADMODUNET simulator produced by NetGas R&D based on the company’s agreement.
Current trends in the exploitation of mature gas fields in the context of rehabilitation concept
Authors: Lupu Diana
Published: August 2019

The exploitation of mature natural gas fields has been and will be an increasingly topic that will attract the attention of the production companies, given that most of the production, about 60-70%, comes from these reservoirs. Implementation of the project management into the exploitation of mature gas reservoirs has a notable ascension because of the fact that in the execution of the operational programs always has developed a mechanism to achieve the objectives in a sustainable manner. The project management in gas industry it is known as rehabilitation concept or integrated reservoir development, which has a major impact on increasing the recovery factor. The paper intends to present the current trends in the exploitation of mature gas fields in Romania by applying the concept of rehabilitation as well as expansion opportunities in order to drive the business performance results.
Bio-Gaseous Fuels from Agricultural Waste Pyrolysis (Part II)
Authors: Bulmău Cora , Ionescu Gabriela , Mărculescu Cosmin
Published: August 2019

The results presented in the following paper are making the aim of a broadly research concentrated to investigate the temperature effects on agricultural waste pyrolysis performed in a batch reactor. Briefly, the motivation along with experimental features and main results generated from the rape straw low temperature pyrolysis (300°C-500°C) have been offered in the first part submitted at the MSE 2019 conference, with the title: Bio-gaseous fuels from agricultural waste pyrolysis (Part I). The current section (second part of the study) presents the results obtained in case of the rape straw high temperature pyrolysis (600°C-800°C). Overall, as expected, the augmentation of the operating temperature, inhibits the bio-oil and biochar formation, enhancing the pyrolysis gas production. The distribution of gaseous components varies depending on temperature and residence time. The transition stages and the formation of the main pyrolysis gaseous species are also presented and discussed. The most dominant chemical element from the pyrolysis gas is N2, due to its constant presence as non-oxidant agent in the process. Considering the same premise, the rape straw pyrolysis gaseous species distribution in the temperature range of 600°C-800°C varies between: 47%-58% CO2, 18%-28% CO, 14%-35% H2, while the pyrolysis gas density 1.1-1.4 kg/m3 and higher heating value 23-52 MJ/kg.
Modelling of noise reduction for Datacentre buildings fire protection with inert gas systems
Authors: Mihalache Cristina-Maria , Bigan Cristin , Panduru Valentin , Tsakiris Cristian
Published: August 2019

Regarding INERGEN Clean gas Total Flood Fire Suppression System, these systems are specifically engineered for total flooding application in either unoccupied or occupied areas, but against its design, or their proved long term efficiency and global scale usage, since INERGEN agent is stored as a gas, it discharges as an invisible gas that can have a more destroying impact than the fire itself. Since 2008 up to now, there have been recorded on yearly basis several reports about INERGEN gas discharges conducting to faults in hard discs (HDD) operating in Data Centres protected by such a solution from fire due to the level of noise produced. The paper shows an analysis of this problem as hard disks damaging source detection and optimization by modelling of nozzle placement in the space choice as a technical solution to avoid these fire extinguisher side effects.
Principles for the assessment of the safety requirements of work equipment for working at heights in electrical installations
Authors: Buica Georgeta , Beiu Constantin
Published: August 2019

The work in electrical installations requires some activities to be carried out on heights, and must be carried out in a safe manner and with appropriate ergonomic conditions, by choosing specific work equipment and means of protection, to ensure optimal working conditions in safety parameters. The use of electrical insulating work equipment for temporary work on heights it is a mandatory technical and safety measure to carry out the specific activities in electrical installations, as well as to ensure the protection against electrical risks and to prevent falling from heights. The research study aimed at identifying the specific professional risks and the assessment of the technical and safety requirements for work equipment intended to be used on heights - ladders made of electrical insulating material sections. Effective management of the safety management of this work equipment is necessary to ensure a high level of safety for workers and to establish the necessary preventive measures for the use of combined ladders. The results of the study consist of identifying and establishing the specific safety requirements specific to work equipment for work on heights, ladders which have both metallic and electrical insulating material.
The risk of liquid wood degradation under the influence of marine factors
Authors: Barhalescu Mihaela Luminita , Ghita Simona , Petrescu Tudor-Cristian
Published: August 2019

A case study was performed, concerning the behavior and degradation of a polymeric biocomposite material – “liquid wood”. This material is biodegradable and it is obtained from renewable resources. Three presentation forms – Arbofill Fichte, Arboform F45 and Arboblend V2, were subjected to the action of external factors present in a marine environment. The results pertaining to the change in the physico – chemical properties of “liquid wood” when subjected to the action of seawater and seawater microorganisms, with significant – but nevertheless positive – consequences upon the environment. The material exhibits good performance after the surface and mass stabilization – due to water, C, Na, Cl and O absorption. As such – due to the emergence of a protective organic biofilm – growth of microorganisms significantly decreases and electric conductivity increases. This case study may be viewed as a starting point for subsequent studies of “liquid wood”.
The Assessment of Mental Load of Air Traffic Controllers Based on Psychophysiological Indicators
Authors: Iordache Raluca Maria , Petreanu Viorica
Published: August 2019

The article presents a part of a broader study on identifying and monitoring occupational risks, early detection of signs and symptoms of reversible impairment of physical and mental health of staff, decrease in work capacity and the occurrence of deficient, risky behavior in working practices, as a result of intense neuropsychological or physical professional effort. The results of the study aimed at highlighting: professional effort factors experienced by the trial subjects; occupational risk factors that cannot be avoided and which, due to the nature of the workload and the conditions for completing it, can in time lead to reduced work capacity, premature wear and tear, work-related illnesses and risky behaviors in the workplace, with serious consequences for the safety and health of employees and / or other people; measures to prevent and reduce identified work and stress factors, in order to ensure health and safety at work, optimal use of human resources and maintenance of work capacity throughout the professional life. The results can be implemented in the actions taken to ensure occupational health and safety regulations and to monitor employees’ health conditions and their work capacity in accordance with the legislation in force.
Gaining insight into teaching profession by using film: a preservice teachers’ experience
Authors: Creţu Daniela-Maria
Published: August 2019

Films can be used as instructional tools in higher education in different disciplines. In the context of teacher education, films with and about teachers and pupils are valuable resources for learning about the teaching profession. The purpose of this study is to examine the pre-service teachers’ reflections on a film with an educational content and message - The Triumph (The Ron Clark Story, 2006). One research question guided the investigation: What are the students’ cognitive and emotional gains for the teaching profession as a result of watching this film? The participants consisted of eighty-two second year students, enrolled in an initial teacher education program at a Romanian university. At the end of a one-semester course, named Pedagogy (Instruction and Students’ Assessment) pre-service teachers were invited to watch a film and then to reflect about it, by completing an open-ended questionnaire. The responses were analyzed through the content analysis technique. Examples of comments made by preservice teachers are presented and analyzed. The results show a range of understandings gained by future teachers through the use of the film.
MM-DSL, support for implementing modelling tools for manufacturing processes
Authors: Crăciunean Daniel-Cristian , Volovici Daniel
Published: August 2019

Today’s competitive conditions call for detailed comparative analyzes of manufacturing processes in order to get competitive products. This analysis involves the development of faithful and robust models for the supervision and management of all organizational and operational activities of companies. Efficient modelling involves the selection and use of appropriate tools for modelling, simulation and analysis of manufacturing processes. The diversity of manufacturing processes often makes it necessary to implement specific modelling tools. MM-DSL is a platform independent language for specifying and implementing specific modelling tools. The core objective of the MM-DSL language is the implementation of the modelling method concept. The paper presents the mechanisms underlying the MM-DSL language as well as its use for building the modelling tools specific to the manufacturing systems.
Auswirkungen der Fälschungsrichtlinie 2011/62/EU und der Delegierten Verordnung (EU) Nr. 2016/161 auf Gewebezubereitungen und Blutprodukte
Authors: Pruß Axel , Schroeter Bernard , Löwel Matthias
Published: August 2019

Ab dem 09.02.2019 müssen auch in Deutschland die von der Richtlinie 2011/62/EU in Verbindung mit der Delegierten Verordnung (EU) 2016/161 zur Ergänzung der Richtlinie 2001/83/EG erfassten Humanarzneimittel mit zusätzlichen Sicherheitsmerkmalen und einer Vorrichtung zum Erkennen einer möglichen Manipulation versehen werden. Nach aktueller Einschätzung des Paul-Ehrlich-Instituts sind die primär davon betroffenen Gewebezubereitungen mit einer Zulassung gemäß §§ 21, 25 Arzneimittelgesetz (AMG) nicht als unter die Richtlinie 2001/83/EG fallend einzustufen, da sie nicht mit einem industriellen Verfahren hergestellt werden. Die Fälschungsrichtlinie 2011/62/EU und die Delegierte Verordnung (EU) Nr. 2016/161 finden daher keine Anwendung. Außer den in der Anlage I der Delegierten Verordnung (EU) 2016/161 genannten Ausnahmen sind darüber hinaus auch Blutkomponenten (Vollblut, Plasma und Blutzellen menschlichen Ursprungs) gemäß Art. 3 Nr. 6 der Richtlinie 2001/83/EG vom Anwendungsbereich der Richtlinie ausgenommen. Insofern besteht lediglich für Plasmen, bei deren Herstellung ein industrielles Verfahren zur Anwendung kommt, sowie die aus diesen Plasmen resultierenden Plasmaderivate eine Verpflichtung, den Vorgaben von Fälschungsrichtlinie und Delegierter Verordnung nachzukommen.
Dermatophytose bei Hund und Katze – ein Update
Authors: Boehm Teresa M.S.A. , Mueller Ralf S.
Published: August 2019

Die Dermatophytose ist eine kutane Infektion, die durch mehrere keratophile
Pilzarten (Dermatophyten) verursacht wird. Sie stellt eine ernstzunehmende sowie
häufig auftretende kontagiöse Hautkrankheit bei Hunden und Katzen dar. Die
Bedeutung dieser Krankheit für Tierbesitzer basiert auf ihrem zoonotischen
Potenzial. Ihre Prävalenz variiert mit dem Klima und der lokalen
Dermatophytenprävalenz. Die häufigsten Infektionen bei Hund und Katze erfolgen
durch die Genera Microsporum (M.), Nannizzia (N.)
oder Trichophyton (T.). Ziel dieses Artikels ist eine
Zusammenfassung der Neuerungen hinsichtlich Taxonomie, Diagnose und
Therapieempfehlungen sowie der aktuell überarbeiteten Empfehlungen der World
Association of Veterinary Dermatology.
Effect of Stacked Sodium Bicarbonate Loading on Repeated All-out Exercise
Authors: Dalle Sebastiaan , De Smet Stefan , Geuns Willem , Rompaye Bart Van , Hespel Peter , Koppo Katrien
Published: August 2019

The purpose of this study was to evaluate whether NaHCO3, administered via a 9-h stacked loading protocol (i.e. repeated supplementation with small doses in order to obtain a gradual increase in blood [HCO3
-]), has an ergogenic effect on repeated all-out exercise. Twelve physically active males were randomly assigned to receive either NaHCO3 (BIC) or placebo (PL) in a double-blind cross-over design. NaHCO3 supplementation was divided in three identical 3-h cycles: a 6.3 g bolus at the start, followed by 2.1 g doses at +1-h and +2-h, yielding a total NaHCO3 intake of 0.4 g·kg−1 BM over 9-h. At the end of each cycle, participants performed 2-min all-out cycling. Capillary blood samples were analyzed for [HCO3
-], pH and [La-]. Pre-exercise blood [HCO3
-] in PL decreased from 25.6±0.2 mmol·L−1 in bout 1 to 23.6±0.2 mmol·L−1 in bout 4, while increasing from 25.5±0.2 to 31.2±0.4 mmol·L−1 in BIC (P<0.05). Concomitantly, pre-exercise pH values gradually decreased in PL (from 7.41±0.00 to 7.39±0.01) and increased in BIC (from 7.41±0.01 to 7.47±0.01; P<0.05). Mean power output of the four bouts was higher in BIC (428±20 W) than in PL (420±20 W; P<0.05). The ergogenic effect on repeated all-out exercise occurred in the absence of gastrointestinal distress.
Carboxylative Cyclization of Propargylic Amines with Carbon Dioxide­ Catalyzed by Poly(amidoamine)-Dendrimer-Encapsulated Gold Nanoparticles
Authors: Matsuo Hideaki , Fujii Akira , Choi Jun-Chul , Fujitani Tadahiro , Fujita Ken-ichi
Published: August 2019

We prepared gold nanoparticles encapsulated in poly(amidoamine) (PAMAM) dendrimers as templating agents. The resulting gold nanoparticles were used as catalysts for the carboxylative cyclization of propargylic amines with carbon dioxide to afford the corresponding 1,3-oxazolidin-2-ones in yields of up to 99%.
One-Step Synthesis of 1H-Imidazo[1,5-a]imidazole Scaffolds and Access to their Polyheterocycles
Authors: Loubidi M. , Lorion M. , El Hakmaoui A. , Bernard P. , Akssira M. , Guillaumet G.
Published: August 2019

In this work, we continue our adventure in the chemistry of 5-5 tri-nitrogen bicycles. We disclose herein a one-step reaction to synthesize 1H-imidazo[1,5-a]imidazoles with different substituents introduced through the use of a wide range of aldehydes and isocyanides by using a Groebke–Blackburn–Bienaymé multicomponent reaction. The aim is to build a new library of 1H-imidazo[1,5-a]imidazole scaffolds. This bicycle was then modified to access new nitrogen-containing polycyclic compounds.
Integration of a Commercial Barcode-Assisted Medication Dispensing System in a Teaching Hospital
Authors: Berdot Sarah , Boussadi Abdelali , Vilfaillot Aurélie , Depoisson Mathieu , Guihaire Claudine , Durieux Pierre , Le Laetitia Minh Maï , Sabatier Brigitte
Published: August 2019

Objectives A commercial barcode-assisted medication administration (BCMA) system was integrated to secure the medication process and particularly the dispensing stage by technicians and the administration stage with nurses. We aimed to assess the impact of this system on medication dispensing errors and barriers encountered during integration process.

Methods We conducted a controlled randomized study in a teaching hospital, during dispensing process at the pharmacy department. Four wards were randomized in the experimental group and control group, with two wards using the system during 3 days with dedicated pharmacy technicians. The system was a closed loop system without information return to the computerized physician order entry system. The two dedicated technicians had a 1-week training session. Observations were performed by one observer among the four potential observers previously trained. The main outcomes assessed were dispensing error rates and the identification of barriers encountered to expose lessons learned from this study.

Results There was no difference between the dispensing error rate of the control and experimental groups (7.9% for both, p = 0.927). We identified 10 barriers to pharmacy barcode-assisted system technology deployment. They concerned technical (problems with semantic interoperability interfaces, bad user interface, false errors generated, lack of barcodes), structural (poor integration with local information technology), work force (short staff training period, insufficient workforce), and strategic issues (system performance problems, insufficient budget).

Conclusion This study highlights the difficulties encountered in integrating a commercial system in current hospital information systems. Several issues need to be taken into consideration before the integration of a commercial barcode-assisted system in a teaching hospital. In our experience, interoperability of this system with the electronic health record is the key for the success of this process with an entire closed loop system from prescription to administration. BCMA system at the dispensing process remains essential to purchase securing medication administration process.