bluuebunny/crossref_metadata_2025_split huggingface dataset:
Plantas medicinales de la familia Asteraceae con actividad hipoglucemiante en México. Una revisión
Authors: Hernández Pérez Aracely , Campos Montiel Rafael G. , López Palestina Cesar U. , Hernández Fuentes Alma D. , Juárez Maldonado Antonio 
Published: July 2022

La diabetes mellitus es una enfermedad prevalente en todo el mundo, se debe a una pérdida progresiva de la secreción adecuada de insulina [5] en México el uso de plantas medicinales es una práctica común para tratar esta enfermedad, se estima que se utilizan al menos 800 plantas para tratar la diabetes en México [10], de las cuales hay muy poca evidencia científica que sustente su actividad hipoglucemiante, por tanto, su investigación es fundamental, bajo este contexto, esta pequeña revisión tiene como objetivo proporcionar información que contiene, por un lado, una lista de 13 plantas (Asteraceae) que muestran los fitoquímicos aislados de plantas hipoglucémicas pertenecientes a la familia Asteraceae y por otro lado, una recopilación de datos sobre el uso empírico de 40 plantas (Asteraceae) reportadas en México como hipoglucémicas, por ello, se espera que las plantas (Asteraceae) que se presentan aquí, amplíe aún más la base de conocimientos sobre las diversas plantas disponibles para el tratamiento de la diabetes mellitus.
RANGKA BATANG 3D MENGGUNAKAN ANALISA METODE ELEMEN HINGGA DAN SAP 2000
Authors: Christiani Chandra Manubulu  
Published: July 2022

Analisa struktur dimaksud untuk mengetahui respon struktur terhadap beban. Salah satu metode analisa struktur yaitu dengan menggunakan metode kekakuan. Pemahaman metode kekakuan umumnya dilakukan dengan memakai contoh struktur sederhana. Ukuran struktur dalam perhitungan selalu direpresentasikan oleh banyaknya jumlah titik hubung dan elemen batang sehingga pemakaian komputer dan aplikasi perhitungan harus harus sesuai dengan model struktur yang dimodelkan. Salah satu aplikasi populer yang digunakan dalam melakukan perhitungan struktur adalah MS Excel. Tujuan yang ingin dicapai penelitian ini adalah membuat alat bantu alternatif analisis struktur berorientasi MS Excel dan melakukan perbandingan hasil perhitungan dengan output aplikasi lain yang sudah ada di pasaran khususnya untuk analisa struktur rangka batang 3D. Perhitungan metode kekakuan berorientasi MS Excel akan membuat tahapan analisis yang bentuk fisiknya merupakan pengolahan angka dapat ditampilkan dengan jelas sehingga dapat diperiksa kebenaran dari tahapan analisa yang sesuai dengan teori. Proses perhitungan yang transparan meningkatkan kepercayaan atas hasil perhitungan sehingga dapat digunakan dalam edukasi dan sebagai pembanding terhadap output aplikasi lainnya. Hasil perhitungan struktur rangka batang tiga dimensi dengan program bantu alternatif dan program aplikasi SAP 2000, memberikan perbedaan yang sangat kecil sehingga dapat disimpulkan bahwa output program bantu alternatif, dapat digunakan.
La etapa formativa de Mario Vargas Llosa: reflexiones sobre la experiencia con el francés y la traducción de Rimbaud
Authors: Morales Mena Javier Julián 
Published: July 2022

Resumen
El presente artículo tiene como objetivo fundamental contribuir con la reflexión sobre una faceta poco estudiada del proceso formativo de Mario Vargas Llosa (Arequipa, Perú, 1936): la de traductor. La atención está centrada en las ideas sobre el oficio que circundan la traducción de Un coeur sous une soutane / Un corazón bajo la sotana (1989) de Arthur Rimbaud. Proponemos que para comprender la experiencia de la traducción vargasllosiana es necesario reparar en dos momentos clave del proceso formativo del futuro escritor: el encuentro con César Moro, con la traducción y la escritura crítica sobre alguno de sus textos, y el primer contacto con París. Si bien los estudiosos reconocen la traducción como parte del proceso formativo del Nobel de Literatura, no le prestan demasiada atención a una serie de acontecimientos que orientarán su interés y preferencia por la lengua y la cultura francesas en su etapa formativa. En aras de demostrar la relevancia de la traducción del francés en el proceso formativo del autor, este artículo se propone reconstruir los dos momentos angulares donde la lengua y la cultura francesas se revelan ante Vargas Llosa y ahondar en algunas de las reflexiones planteadas en el prólogo titulado “El corruptor”, el mismo que acompaña su traducción del texto en prosa de Rimbaud.
Cual Cid Campeador, la antigua causa de despido por absentismo sigue ganando batallas después de su derogación: la STS de 29 de marzo de 2022 proclama su adecuación a la normativa internacional
Authors: Moreno Gené Josep 
Published: July 2022

Pocos días antes de la derogación del art. 52 d) ET, se dictó la STSJ de Cataluña de 17 de enero de 2020, la cual, revocando la sentencia dictada en instancia, concluía que dicho precepto era contrario a diferentes normas internacionales, en particular, al art. 6.1 del Convenio núm. 158 OIT, sobre la terminación de la relación de trabajo, a los arts. 4.1 y 5 del Convenio núm. 155 OIT, sobre seguridad y salud de los trabajadores, al art. 3 de la Carta Social Europea y, finalmente, al art. 11 Convención sobre la eliminación de todas las formas de discriminación contra la mujer, hecha en Nueva York el 18 de diciembre de 1979 y, por tanto, no resultaba de aplicación al supuesto enjuiciado. La posterior STS de 29 de marzo de 2022, sin embargo, ha venido a casar la referida STSJ de Cataluña de 17 de enero de 2020, permitiendo, una vez más, que la antigua causa de despido por absentismo del trabajador prevista en el art. 52 d) ET haya salido indemne de este embate jurídico. En este estudio se analizan los argumentos invocados por la STSJ de Cataluña de 17 de enero de 2020 para inaplicar el art. 52 d) ET, así como aquellos que han llevado al Tribunal Supremo a casar dicha resolución.
La Embajada de España ante la Organización Internacional del Trabajo (1978-1983)
Authors: Espuny Tomás María Jesús 
Published: July 2022

Este artículo analiza un episodio poco conocido en las relaciones de España con la Organización Internacional del Trabajo. Entre los años 1978 a 1983 existió una Embajada específica de España ante este organismo que ocupará el antiguo Ministro de Trabajo, Manuel Jiménez de Parga. Tras cesar a petición propia, fue substituido por Electo García Tejedor en enero de 1983. Las funciones específicas del cargo fueron asumidas por el Embajador Representante Permanente de España ante las Organizaciones Internacionales.
INTERNAÇÃO E ALTA HOSPITALAR DO RECÉM-NASCIDO NA UNIDADE DE CUIDADO NEONATAL
Authors: Braz de Araujo Evelyn , Bonotto Cabral Reis Danielle , Rocha Adriana Duarte , Souza Machado Ana Beatriz 
Published: July 2022

Objetivo: Identificar as dúvidas dos pais frente aos cuidados dos seus filhos na UTIN no processo de internação e alta hospitalar. Metodologia: estudo de natureza descritiva e abordagem qualitativa. O cenário da pesquisa foi uma unidade neonatal de um hospital terciário, localizado no Estado do Rio de Janeiro. Foram selecionadas, por conveniência, como participantes do estudo as mães e pais dos recém-nascidos internados na UTIN, com internação mínima de 2 semanas, e que estivessem presentes na unidade. A coleta de dados foi realizada através de dados obtidos no prontuário do recém-nascido e um questionário. Foram realizadas também entrevistas abertas com os pais na primeira semana de internação do RN na UTIN e nas semanas subsequentes, até a semana da alta. Nesta pesquisa, a análise de dados foi feita por meio da análise de conteúdo de Bardin. Resultados: Participaram desta pesquisa 10 mães e 02 pais de RN internados na UTIN. Com a transcrição das entrevistas, emergiram sete categorias que se tratavam das dúvidas que as mães e os pais apresentavam durante o processo de internação, descritas a seguir: Cuidados Básicos; Amamentação/Alimentação; Tratamento; Exames/Cirurgias; Impeditivos para alta; Cuidados pós-cirúrgicos; Tempo de internação. A categoria com o maior número de dúvidas apresentada durante a pesquisa foi sobre Tratamento (25.5%). Conclusão: Foi possível constatar que a internação na UTIN gera nos pais diversas dúvidas. Dúvidas essas relacionadas aos cuidados prestados aos seus filhos, sobre amamentação e alimentação, sobre o tratamento, entre outras.
The Properties of the High Productive High Velocity Arc Sprayed Coatings and its Applications
Authors: Ruijun Wang , Lin Xu , Tianjian Zhang , Xiaoou Huang 
Published: July 2022

Abstract
This paper describes the applications of the new type high productive high velocity arc spray system, at the same time makes a comparison with the effects of the atomized particles sprayed separately by the high-velocity and general arc spraying gun, analyzing the effects of the original velocity of the particles to the coating structures and comparing the difference of the surface roughness, the porosity and the bond strength of the coatings. Some new applications examples of the latest three years on the high productive high velocity arc spray system are presented in this paper.
Transition of a World Class HVOF Thermal Spray Capability Into a US Engine Overhaul Facility
Authors: Froning Marc , Ruggiero Peter , Tsiao Johnny , Marnix Jeffery , Alford Charles , Shubert Gary 
Published: July 2022

Abstract
The paper will describe a collaboration of the DoD Propulsion Environmental Working Group (PEWG), Oklahoma City Air Logistics Center (OC-ALC), Pratt & Whitney and Engelhard Corporation to qualify and transition High Velocity Oxy Fuel (HVOF) thermal spray of tungsten carbide coatings to replace electrolytic chrome plating for the repair of Pratt and Whitney (PWA) engines at the OC-ALC. This depot is the primary location for engine repair for the US Air Force. The paper details the engineering effort to qualify the HVOF tungsten carbide coating on PWA TF33 engine components as an precursor to qualifying the coatings for other military PWA engines. The paper also provides details of the transition of HVOF thermal spray technology into a new state-of-the-art production facility at the OC-ALC depot. The paper highlights a notably successful industry and government partnership to rapidly transition a world-class thermal spray capability into OC-ALC. The PEWG is a special management group that works with US military propulsion managers to educate/apprises government and industry collaborations of mature advanced pollutant free technologies and then facilitate the transition to full-scale production. Pratt and Whitney is the original equipment manufacturer of the TF33 engine and supplies other gas turbine engines to the Air Force and other military services. Engelhard Corporation is a surface and science company that develops technologies to improve customers’ products and processes. A Fortune 500 company, Engelhard is a world-leading provider of technologies for environmental, process, appearance, performance application and engineering solutions. Engelhard led the technology transition effort under contract to the PEWG. [This effort, as will be described in the paper, encompasses process engineering, coating qualification, spray parameter definition, tooling concepts, accelerated mission engine test support, inspection techniques, and production bed-down at the OCALC depot.]
Full profile fitting of Radio Frequency Suspension Plasma Sprayed Ultra-Fine Hydroxyapatite Powders
Authors: Kumar R. , Cheang P. , Khor K.A. , White T. 
Published: July 2022

Abstract
Ultra-fine hydroxyapatite (HA) powders were produced with radio frequency (RF) suspension plasma spraying (SPS). This novel technique utilizes the inherent properties of the RF plasma enabling axial feeding of the suspension into the plasma producing spherical ultra-fine HA powders. These powders were examined by XRD and Rietveld analysis using the Rietquan 2.3 Quantitative Analysis software package. The aim of the analysis was to determine the various amounts of decomposed phases and amorphous content after SPS of HA. Results showed that the amount of decomposed phases rose up to a plate power of 15 kW there after decreasing at higher plate powers. The amorphous phase however kept increasing with plate power reaching about 35 wt.% in the powders sprayed at 21 kW. These trends have led to the belief that the phase content and hence, the characteristics of the powders are controlled mainly by the competitive processes of decomposition and melting and evaporation within the plasma. The morphology of the powders was also observed through TEM and changes in molecular structure were investigated by FTIR. DSC was carried out to observe the crystallisation of amorphous calcium phosphate into HA.
Abradable Properties of Thermal Sprayed Coating for Air Compressor
Authors: Sonoya Keiji , Wakabayashi Tsukawa 
Published: July 2022

Abstract
Pb-Sn alloys tend to form string-like abrasion products during compressor operations, and the products cause malfunctions at the down streams of the seals and may affect the operation efficiency of the compressors. In this article, a thermal spraying method is developed for forming an abradable labyrinth seal of powdered abradable alloys to cope with the problems for improving the product quality and the operation life of the compressors. The article evaluates the abradable properties of the thermal sprayed coating labyrinth seals of the RIK-type compressors that have higher rotational speed than the other type. Various abradable properties of the sprayed coating are tested by the following test methods: microstructure observation, bond strength, machinability, bending ductility, and corrosion resistance. The article reports the results obtained from these test methods and compares them with those of the cast alloy.
On the Effects of Processing Parameters on Pore Network Architecture and Characteristics of Al2O3-13% wt. TiO2: Experimental Quantification and Prediction by Artificial Intelligence
Authors: Guessasma S. , Montavon G. , Coddet C. 
Published: July 2022

Abstract
The very singular pore network architecture of thermal spray coating results from the combination of several phenomena occurring during the coating buildup process. Close pores, usually of large dimensions, result from stacking defaults when impinging particles spread onto previously deposited layers. Intra-lamellar cracks, perpendicular to the substrate surface, develop mostly in ceramic lamellae during solidification. Inter-lamellar cracks, parallel to the substrate surface, depend significantly from the surface tension characteristics during the particle spreading stage. One way or another, these characteristics are related to the processing parameters implemented to manufacture the coating and they significantly modify the coating characteristics, their cohesion, their compliance and their impermeability, among the most significant. Al2O3-TiO2 (13% wt.) coatings were atmospheric plasma sprayed implementing several sets of processing parameters, among which power parameters (i.e., arc current intensity, plasmas gas flow rates, etc.), feedstock injection parameters (i.e., carrier gas flow rate, injector internal diameter, etc.) and environment parameters (i.e., spray angle, etc.) were varied. Pore contents were analyzed implementing image analysis. Pore network connectivity was analyzed implementing an electrochemical test: the higher the passivation potential of the substrate, the higher the coating pore network connectivity.
The Relation between Hardness of Substrate and WC-Co Coating Destruction by HVOF
Authors: Takarae Keiko , Matsubara Yoichi 
Published: July 2022

Abstract
This article discusses the relation between hardness of substrate and WC-Co coating destruction by HVOF. This research uses the indentation test of a hard ball to study WC-Co coating destruction by HVOF thermal spray system. By adjusting the hardness of substrate, the article investigates and evaluates the effects on coating destruction. As for base material hardness, it is necessary to have beyond 500HV (49.1HRC) in order to keep surface hardness of sprayed coating. It was also observed that when sprayed coating received pressure, plastic deformation of the base material made the destruction more likely to occur. By measuring HRC surface hardness of sprayed coating and observing HRC indentation, the research concluded that strength evaluation of sprayed coating is possible.
Advantages of CO2 Cooling for Thermal Spraying
Authors: Heinrich P. , Krömmer Werner 
Published: July 2022

Abstract
Two directions characterize the advances being made in thermal spraying today. On the one hand, the spray processes are becoming colder, as with cold spraying which facilitates the production of oxide-free coatings in the atmosphere. On the other hand, high-performance systems are being developed which enable a higher powder throughput, thus making production faster and more efficient. This development has made it more important than ever to maintain this time-saving advantage and not lose it as a result of cooling intervals. More and more applications require the use of CO2 as a cooling medium to increase the cooling efficiency and, in turn, optimize the process. An ongoing objective of the gas industry is to offer the user hardware which not only exploits all the advantages of CO2, but which is also suited to new applications.
Plasma Quality at Combustion Price
Authors: Grimenstein L.F. 
Published: July 2022

Abstract
The Hitachi MaxJet II is a unique multi-purpose combustion gun. It can be used for spraying wire but it also has the capability to spray multiple materials via-powder and powder cord form. The equipment operates using commonly available gases: compressed air, Oxygen and Propane or Mapp gas. It requires no major facility cost since it uses only a 35 cfm air compressor and 115 volt power supply. Safety is assured with a safety purge system, separation of electrical and gases systems and flash back arresters. The small compact system weighs less than two hundred pounds, which makes it easily movable for on site work. It’s low capital investment and high quality coatings with low porosity and excellent bond strengths. The electronic pusher type wire feed provides consistent feed rates for a large variety of wires and wire sizes (1/16”, 1/8”, and 3/16”). The spray gun weighs only three pounds and can be mounted on a robot or used for hand spray applications. It functions well in a shop environment or onsite spraying of bridge components.
In-Process Exothermic Reaction in HVOF and Plasma Spraying with SiO2/Ni/Al-Si-Mg Composite Powder
Authors: Ozdemir I. , Hamanaka I. , Tsunekawa Y. , Okumiya M. 
Published: July 2022

Abstract
Reactive thermal spraying, in which thermodynamically stable compounds are formed by expected in-process reactions, has attracted considerable attention as a result of wide availability to in-situ composite coatings. Such inprocess reactions differently proceed in HVOF and plasma spraying because of differences in the flame temperature and speed. In the present study, composite powder of SiO2/Ni/Al-Si-Mg was deposited onto an aluminium substrate to fabricate in-situ composite coatings by both spraying methods. The coating hardness sprayed with Al-Si-Mg core powder increases with silicon and magnesium content, whereas the coatings by HVOF spraying show higher hardness than those by plasma spraying. In the present reactive spraying, the exothermic reaction of SiO2 with molten Al-Si-Mg alloy leads to composite materials of MgAl2O4, Mg2Si and Al-Si matrix. Moreover, a rapid formation of aluminide (NiAl3), which is introduced by an exothermic reaction of plated nickel with Al-Si-Mg core powder, enhances the reduction of SiO2 especially in HVOF spraying. A series of in-process reactions mainly proceed during splat layering on a substrate, instead of during droplet flight even in DC plasma spraying. Plasma sprayed composite coatings become much harder due to the great progress of in-process reactions.
Study on the Properties of WC-NiCr and Cr3C2-NiCr Cermet Coating using the Continuous Detonation Spray Method
Authors: Kim H.G. , Ohmori A. , Kim Y.S. 
Published: July 2022

Abstract
To protect structural and functional materials against influence of the severe environments, various coating technologies can be used. This study considers the use of high velocity oxy-fuel process the coatings available for applications based on deposition using the continuous detonation spray process. The properties of the continuous detonation sprayed WC-NiCr and Cr3C2-NiCr cermet coating are investigated through the mechanical, corrosion and wear resistance test. The test results are also compared with the properties of the duplex phase stainless steel substrate and the atmospheric plasma sprayed coatings with the same powders. The corrosion resistance was examined by electochemical method, corrosion potential monitering. Furthermore, the erosion wear resistance was examined by the abrasive and cavitation erosion wear test. The experimental results exhibited that the anti-corrosive and anti-erosive properties of the continuous detonation sprayed coatings are superior to that of their plasma sprayed coatings. It was found that the WC-NiCr cermet coating appears to be more effective than the Cr3C2-NiCr cermet coating in abrasive erosion environment, whereas the Cr3C2-NiCr cermet coating is more effective in cavitation erosion environment.
A Study of Plasma Gun Orientation Control Accuracy for the Thermal Spraying Robot
Authors: Watanabe T. , Higashimoto A. 
Published: July 2022

Abstract
This paper is described the experimental results, on the simple method for measure the accuracy of plasma gun autonomous control system with plural laser range sensors for thermal spraying robot. In this robot, plasma gun position and orientation under spraying condition are measured with two laser range finders. Laser wavelength is about 600 nm, visible. Measured data are fed to microcomputer system in order to generate the control signal for the robot movement. The plasma gun installed on thermal spraying robot is maintained preset distance and perpendicularity within preset angle to the work piece surface and kept constant feed rate during thermal splaying operation. The processing feed rate on the surface has influence important for the quality of the processed surface. This simple measuring method is very useful for thermal splaying process.
Low Porosity and Fine Coatings Produced by a New Type Nozzle of High Velocity Arc Spray Gun
Authors: Ruijun Wang , Tianjian Zhang , Lin Xu , Xiaoou Huang 
Published: July 2022

Abstract
Providing for the DZ400 arc spray system, the new design high-velocity arc spray gun with three different nozzles is developed to produce the coatings with the structure of superfine and low porosity. This system can be used to spray the three normal wires of 4Crl3, FeCrAl and 7Crl3 (flux cored wires). With the SEM to analysis shape and particles size sprayed by the nozzles by different parameters, as well as with the S-3500N SEM (made by HITACHI) and the INCA ESA (made by OXFORD) identify the content of the oxides, porosity and thickness of the coatings. The result shows that the porosity in the coatings of solid wire is less than 2%, of the flux-cored wires is less than 4%, and the coating sprayed by the nozzle with the secondary supplementary airflow is typically shown to be distributed in the form of high-density lamellar splat structure and the average lamellar thickness is around 5 μm.
HVAF Arc Spraying
Authors: Verstak A. , Baranovski V. 
Published: July 2022

Abstract
HVAF Arc process deposited coatings of dual wire stock, fused by an electric arc and atomized by a high-velocity jet of air and gaseous fuel combustion products. The HVAF jet was generated in toroidal chamber, where a hot catalytic insert activated the combustion process. Such atomization produced fine, 5-20 micron, spray particles accelerated to over 200 m/s. Excess of fuel in the arc zone prevented rapid oxidation of fused material. The process is specifically beneficial for deposition of high-quality coatings of aluminum, corrosion resistant nickel-base alloys and hardface Fe-Cr-B-C cored wires.