bluuebunny/crossref_metadata_2025 huggingface dataset:
ALSTOM K4-Injector-Block—Advanced HVOF-Spraying for Future Applications
Authors: Schab J.C. , Olliges S. , Zoller B.T. , Zimmermann J.R.A. , Stankowski A. , Grasso P.-D. , Leyens C.
Published: August 2022

HVOF spraying has established itself in the last decade as a very cost competitive method, increasingly replacing VPS/LPPS for the application of typical high temperature protective metallic coatings on IGT hot gas path components. In order to further improve this technology, ALSTOM recently developed a new design of a 4-injector-block for the K2-gun. This advanced design does not only significantly optimize the energy consumption and spraying time, but also enables the future application of new complex metallic coatings. A CFD simulation of the K2-gun was performed in order to identify the optimization potential. Based on the results, an improved prototype was manufactured, validated and successfully introduced into manufacturing. The aim of the study was also to investigate in detail the impact of the hardware modification on parameters such as spray spot geometry, deposition efficiency, fuel consumption and the corresponding coating quality (porosity, bonding etc.), which shall be discussed within this paper.
Bioactive Glass Coatings Manufactured by Plasma Spraying from 31SiO2-11P2O5-(58-x) CaO- X MgO Powders
Authors: Monsalve M. , Ageorges H. , López E. , Vargas F. , Bolívar F.
Published: August 2022

In this study, bioactive glass powders were synthesized from four different types of oxides (SiO2, P2O5, CaO and MgO). These oxides were mixed, melted, milled and sieved to produce powders with two chemical compositions of the 31SiO2-11P2O5-(58-x)CaO-xMgO system. The powders were plasma sprayed onto AISI 316L stainless steel and Ti6Al4V titanium alloy substrates using a F4MB Sulzer Metco gun. The physical and mechanical properties of coatings, as well as their bioactivity were evaluated. The bioactivity tests were carried out exposing the surface of coatings to simulated body fluid (SBF) during 1, 9 and 15 days. The thickness and hardness of apatite layer produced on the surface of each coating during bioactivity tests were evaluated. The results indicate that the thickness of apatite layer formed during 15 days in SBF is between 31 and 51 µm and its hardness is between 1.5 and 1.9 GPa according to the chemical composition of feed stock powder used to manufacture the coatings. Additionally, the harness of bioglass coatings decreased around 26% after to expose them to SBF.
Development of Protective Coatings for A390 Alloy
Authors: Peter Ildiko , Castella Christian , Rosso Mario , Bendavid Avi
Published: August 2022

A390 alloy is a hypereutectic aluminum alloy with attractive mechanical properties at high temperature, good wear resistance and appropriate thermal properties making it challenging candidate material for automotive and aerospace applications. Currently, this alloy is widely used in automotive industry engine components production. In case of engine blocks, fatigue strength and wear resistance are the main cause of failure. Generally, the surface properties of aluminum alloys, in particular as hardness and wear resistance concerns, are insufficient to fulfill some requirements. Nowadays, there is an increasing interest toward the study and the development of innovative protective coatings suitable to enhance the wear resistance of such alloys. The goal of this paper is to develop appropriate protective coatings for A390 aluminum alloy enhancing its wear resistance. The study has been carried out to characterize the morphological, mechanical and wear resistance properties.
Erosion-Corrosion Interactional Effect of CeO2 Modified HVOF WC-Co Coating
Authors: Liu Yan , Chen Hui , Ceng Shengbo , Gou Guoqing , Wang Xiaomin , Tu Mingjing , Wu Xiangyang
Published: August 2022

Rare earth has been widely used in materials manufacturing to improve hardness and toughness. In this paper, conventional, nanostructured and CeO2 modified WC-12Co powders were sprayed by using HVOF spraying technology. Erosion-corrosion behavior and interaction role of erosion and corrosion of the three coatings in 3.5wt% NaCl solution were investigated. In situ observation method was employed to analyze failure mechanism. The results showed that CeO2 modified WC-12Co coatings possessed the best erosion-corrosion resistance, which is the worst for the conventional WC-12Co coating. The addition of rare earth CeO2 into conventional WC-12Co coating can improve the erosion-corrosion behavior. Results suggested that the erosion-corrosion mechanism in the three coatings was dominated by corrosion-enhanced erosion. However, the extent of corrosion enhanced erosion was different.
Fe-Based Powder Alloys Deposited by HVOF and HVAF for Applications Exposed to Solid Particle Erosion
Authors: Dizdar Senad , Kumar Manish
Published: August 2022

HVOF and HVAF deposited coatings of three commercial Fe-based powder alloys have been ranked according to ASTM G76 solid particle erosion testing. The reference was electrolytic hard chrome (EHC) plating. The test results at 30 m/s abrasive particle velocity showed that 6AB powder alloy, when HVAF sprayed, Fe SP586 when both HVOF and HVAF sprayed meet the EHC plating reference erosion rate. 6AB HVOF sprayed and Fe SP529 both HVOF and HVAF sprayed powder alloys achieved two to three times higher erosion rate but were still at the same level of magnitude as the EHC plating reference.
Fireside Corrosion Performance of NiCr Coatings in Simulated Coal-Biomass Combustion Environment
Authors: Hussain Tanvir , Simms Nigel J. , Nicholls John R.
Published: August 2022

Higher operating temperatures coupled with biomass-derived fuels can lead to aggressive corrosion damage to the superheater/reheater tubes in power plants. In this study, a HVOF sprayed NiCr coating was deposited onto a 9 % Cr substrate, which were exposed in simulated coal-biomass combustion gases with a screening deposit containing Na2SO4, K2SO4 and Fe2O3 at 700-750°C for 1000 h. The tests were carried out using the “deposit-recoat” test method and pre and post-exposure dimensional metrology was used to quantify the coating damage in terms of metal loss distributions. The exposed samples were also examined in a SEM/ EDX. The coatings developed a protective Cr2O3 layer at the coatings/ deposit interface and a Cr depleted zone was observed underneath the oxide layer. NiCr coating provided suitable corrosion protection with a median metal loss of ~35μm in 1000h.
Hybrid Co-Cr/W-WC and Ni-W-Cr-B/W-WC Coating Systems
Authors: Vernhes L. , Azzi M. , Bousser E. , Klemberg-Sapieha J.E.
Published: August 2022

The mechanical, tribological, and corrosion properties of two hybrid coating systems were assessed: 1) a tungsten–tungsten carbide (W-WC) top layer and a laser cladded cobalt– chromium (Co-Cr) interlayer (Stellite 6 superalloy) applied to a 316 stainless steel substrate; and 2) the same W-WC top layer and an HVOF spray-and-fused Ni-W-Cr-B interlayer (Colmonoy 88 superalloy) applied to an Inconel 718 substrate. X-ray diffraction, energy dispersive spectroscopy, and scanning electron microscopy were used to analyze the microstructure of the coating layers. Microindentation was used to measure surface hardness and the hardness profile of the coating systems. Rockwell indentation was used to assess coating adhesion according to CEN/TS 1071-8. Surface load-carrying capacity was also assessed by measuring micro- and macrohardness at high loads. Tribological properties were assessed with a linear reciprocating ball-on-flat sliding wear test, and corrosion resistance was measured by potentiodynamic polarization and electrochemical impedance spectroscopy. W-WC layers showed class I adhesion to both the SS 316 and Inconel 718 substrates, with and without an interlayer. Hardness profile measurements on cross section showed hardness of 13.6 GPa and 7.0 GPa for W-WC and Co-Cr, respectively, with average hardness of 9.7 GPa for Ni-W-Cr-B. Furthermore, hardness measurements at different high loads revealed that the addition of an interlayer increases surface hardness by up to 200% compared to the same coating system provided without an interlayer, quantifying the additional load-carrying capacity provided by the supplementary interlayer. The tribological measurements show that, except for the Inconel 718 / Ni-W-Cr-B / W-WC system, the hardest interlayer or substrate leads to the highest wear rates. In addition, the W-WC layer showed excellent corrosion protection, with no pitting observed after potentiodynamic polarization testing.
Mitigating Corrosion of Carbon Steel in Supercritical CO2 Environments Using HVOF Coatings
Authors: Paul S.
Published: August 2022

This paper reports the use of HVOF-sprayed corrosion resistant alloy (CRA) coatings to protect carbon steel in supercritical CO2-containing environments. 316L, Ti, alloy C- 276 and alloy 625 were sprayed onto carbon steel substrate using a JP-5000 HVOF system and tested in 3.5wt.% NaCl solution at 10 MPa in a mixture of 95% CO2 and 5% H2S at 40°C for 30 days. Microstructural characterization revealed that the coating protected the steel substrate from supercritical CO2/H2S corrosion. The bare steel formed a sulfide scale while no such scale was seen in the case of CRA-coated steel. It can be concluded that thermally sprayed CRA coatings provide a cost-effective corrosion mitigation method for infrastructure likely to be in contact with wet supercritical CO2/H2S. However, care must be taken to ensure that the thermally sprayed layer does not have any through-thickness porosity; else, such coatings may accelerate corrosion of the underlying steel due to galvanic interactions.
Navy Valve Actuator Repair Using Cold Spray
Authors: Widener C.A. , Carter M.J. , Hrabe R.H. , Hoiland B. , Stamey T.E. , Champagne V.K. , Eden T.J.
Published: August 2022

Cold spray is a reduced temperature, supersonic thermal spray process that is increasingly being used to perform repairs on high value components. In this case, a valve actuator internal bore sealing surface was repaired on an aluminum 6061 hydraulic valve body using high pressure cold spray. Corrosion damage to non-critical surfaces was also repaired, allowing the part to be returned to service. The VRC Gen III high-pressure cold spray system was used to deposit gas atomized 6061 aluminum powder. The internal bore surfaces were approximately 100 mm in diameter with a depth of nearly 200 mm, and were sprayed using a 45-degree nozzle 65 mm in length. The minimum required adhesion strength on critical surfaces was 69 MPa. The average adhesion strength was 71.4 MPa, with glue failures on ASTM C633 bond test specimens.
Performance Characteristics of Strain Tolerant TBC
Authors: Sahoo Purush
Published: August 2022

Degradation of hot section components in the turbine section of gas turbines used in the power generation industry can cause significant problems including financial penalties associated with down time and a decrease in operating efficiency. Thermal barrier coatings (TBCs) have been used effectively for the past two decades to mitigate such losses. The advent of dense and vertically macro-cracked TBCs has seen increasing use, although there is little published data as to its efficacy in performance vis-à-vis standard TBCs. This paper will present some mechanical and high temperature test data of such coatings. Effects of spray process and powders will be examined and discussed. The purpose of this paper is to share some of the experiences of a service provider in discussing various coatings options available to the user of the gas turbine.
Porosity Measurement of YSZ Ceramic Coating Deposited with Different Parameters Deposition by Different Methods of Characterization
Authors: Ferreira João Paulo Gabre , Vanat Karen Juliana , Lourençato Luciano Augusto , Pukasiewicz Anderson Geraldo Marenda , Capra André Ricardo , Hackbart Frederico , Moura Newton Reis de , Sérgio Paulo
Published: August 2022

Ceramic coatings are applied in mechanical components subject to high temperature conditions, normally are deposited by plasma thermal spraying process. In this work, the porosity of YSZ ceramic coatings, deposited with different parameters conditions were analyzed by optical microscopy, scanning electron microscopy using back-scatter electron (SEM-BSE) detector and ultrasonic technique. It was verified that porosity measurement by optical and scanning electron microscopy is very sensitive with respect to metallographic preparation, mainly cutting process, and gray level adjustment. SEM-BSE technique showed less scatter results with easier porosity visualization, compared with optical microscopy. The porosity of the coatings was also measured by ultrasonic technique. It was observed that the ultrasonic velocity increase with porosity reduction. Ultrasound technique showed a good correlation with OM and SEM porosity measurement.
The Microstructure Stability of Atmospheric Plasma-Sprayed MnCo2O4 Coating under Dual Atmosphere (H2/Air) Exposure
Authors: Hu Ying-Zhen , Li Cheng-Xin , Zhang Shan-Lin , Yang Guan-Jun , Luo Xiao-Tao , Li Chang-Jiu
Published: August 2022

Based on the specific structure of tubular solid oxide fuel cell stacks, a good chemical, microstructural and phase stability for the protective coating are required in both the oxidizing and reducing environments. In this work, MnCO2O4 coatings of approximately 150 µm were deposited onto porous Ni50Cr50-Al2O3 substrate by atmospheric plasma spray (APS) process. The coated samples were tested at 800°C with the coating exposed in air environment and the substrate in H2 environment. Reducing and pre-oxidizing treatments were performed prior to the stability test. Then the tested coatings were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM). The XRD results elucidated that the tested coating had a high structural stability on the upper layer, while presented a reducing microstructure on the substrate side. The surface morphology of 100 hours tested coating indicated that the spinel granules still arranged closely with small particle size of ~ 250 nm and no obvious grain enlargement was observed. According to the cross-section, the upper layer kept stable and dense. While at the underneath region, the microstructure presented to be rather porous. However, the resistance presented a decreasing trend with the extension of exposure duration. After exposure for 95 h, the ASR decreased to 18.5 mΩ·cm2 although a substantial Cr diffusion from the substrate was detected.
The Possibility of Cold Spray Process Application to Obtain Electrically Conductive Coatings on Polymers
Authors: Małachowska A. , Pawłowski L. , Winnicki M. , Piasecki T. , Ambroziak A.
Published: August 2022

The paper discusses a possibility of metallization of polymers using low pressure cold spray (Dymet 413). The bonding mechanism of the coating is discussed as well as the influence of the number of spraying passes on coating microstructure. Two commercial powder were used (i) tin; and (ii) aluminum to obtain coatings on PA6 polymer substrate. The substrate topography was modified with sandblasting. The adhesion strength, residual stresses, electrical resistivity, and microstructure were determined and characterized. Finally the comparison with other metallization methods was made and the application of cold spray for producing local conductive paths was assessed.
Tribological Behaviour of the Bare and Thermal Sprayed Hot Forming Tool Steels
Authors: Sharmaa Nipun , Kaurb Manpreet
Published: August 2022

High-temperature tribology plays an important role in many engineering applications such as metal forming operations and aerospace industry. Several problems in hot-metal forming of high strength steels occur such as oxidation of tool and workpiece surfaces, increased wear of tools and scaling of workpiece. Moreover, operations at elevated temperatures can significantly influence frictional behavior of tool steels. Present research attempts to analyze experimentally and understand tribological behavior of AISI H11 and AISI H13 under dry conditions at room temperatures. High velocity oxy-fuel (HVOF) thermal spray NiCrBSi coating was developed on tool steels. The room-temperature wear performance of uncoated and coated tool steels was evaluated on pin-on-disc tribometer in the laboratory. In-depth analysis of exposed as-sprayed samples was examined with X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS).
Failure Analysis of X-Ray Flat Detector for Medical Imaging
Authors: Béranger Murielle
Published: August 2022

Flat-panel X-ray detectors used in medical imaging applications present a challenge to failure analysts due to the scale of the products, the newness of the technology, and the relatively low production rates compared to ICs. This article explains how existing tools are being adapted to accommodate the size of these detectors and the exotic materials from which they are made. It discusses the types of defects that can occur and how they affect critical detector characteristics. It describes the basic approach for defect localization and physical analysis and presents examples of defects in different areas of a flat-panel X-ray detector.
3-D Through-Silicon Via Technology
Authors: Jan Vardaman E.
Published: August 2022

This article provides a brief introduction to through-silicon via technology, a system-level architecture in which multiple layers of planar devices are stacked with interconnects running in the vertical as well as lateral direction. Some of the different fabrication processes in use are discussed along with related challenges.
Review of Defect Localization Techniques for DRAMs
Authors: Versen Martin
Published: August 2022

Failure analysis of dynamic random access memory follows a three-step process consisting of electrical test and diagnosis, localization, and physical defect analysis. The electrical test delivers pass-fail results that are graphically displayed in bitmaps, which are then used to localize defects based on layout data. This article describes each step of the process and compares and contrasts laser scanning techniques.
Wire Bonding
Authors: Levine Lee
Published: August 2022

This article discusses the latest trends in wire bonding and examines common failure mechanisms.
Powder-Bed Fusion
Authors: Pope Leon , Shidid Darpan , Fox Kate
Published: August 2022

Powder-bed fusion (PBF) is a group of additive manufacturing (AM) processes that includes selective laser sintering, selective laser melting, and electron beam melting. This article explains the processes and parameters of PBF systems that are used for biomedical applications. It also presents the desirable properties of biomedical devices and the advantages of using PBF systems for biomedical applications.
Material Aspects of Additively Manufactured Medical Devices
Authors: Long Ng Wei , Kai Chua Chee
Published: August 2022

The article presents an in-depth discussion on the various additive manufacturing techniques such as binder jetting, directed-energy deposition, material extrusion, material jetting, powder-bed fusion, sheet lamination, and vat polymerization processes. This article then discusses the different critical material aspects of additively manufactured medical devices, beginning with the preprinting phase (material consistency and recycling), the printing phase (build orientation), and the postprinting phase (part evaluation, biocompatibility, and sterilization) with supporting materials.
Synthesis and Investigation of the Properties of Polymer-immobilized Silver- and Gold Nanoparticles
Authors:   1Karagandy University of the name of academician E.A. Buketov, Burkeyev M.Zh. , Shibayeva S.R. ,   1Karagandy University of the name of academician E.A. Buketov, Khamitova T.O. ,   S. Seifullin Kazakh Agro Technical University, Plocek Jiri ,   Institute of Inorganic Chemistry of the Czech Academy of Sciences, Nurmaganbetova M.T. ,   1Karagandy University of the name of academician E.A. Buketov, Kazhmuratova A.T. ,   1Karagandy University of the name of academician E.A. Buketov, Zhumagalieva T.S. ,   1Karagandy University of the name of academician E.A. Buketov
Published: August 2022

Metal–polymer composites (MPC) based on copolymers of polypropylene glycol maleate phthalate with acrylic acid and metallic gold and silver were synthesized for the first time. The structure of nanocomposites is characterized with the help of microscopy and spectroscopy. Antimicrobial activity of novel metal-polymeric complexes based on silver and gold was studied. Metal-polymeric complexes were stabilized for the first time with polymeric matrix based on the copolymers of polypropyleneglycolmaleatephthalate with acrylic acid (p-PGMPh/AA:Ag, p-PGMPh/AA:Au). Obtained nanocomposites contain the nanoparticles of silver and gold of rhomboidal and cylindrical shapes with the sizes of 40–50 and 35–50 nm correspondingly. The size of more than 80 % of the nanoparticles are from 20 to 50 nm and has a spherical and rhombic shape. For determination of antimicrobial activity of the MPC the reference test-microorganisms such as facultative-anaerobe gram-positive Staphylococcus aureus, aerobic gram-positive spore-forming Bacillus subtilis, gram-negative facultative anaerobe of Escheriсhia coli, aerobic Pseudomonas aeruginosa and yeast fungi Сandida albicans have been used. The resulting nanocomposites are stable and promising for the creation of new pho-tochromic and nonlinear optical materials, as well as for using in medicine in the development of antiseptic and antimicrobial materials that are needed during a pandemic.
Sights of the Ukrainian Cossatians as a Tourist Resource
Authors: Dotsenko Anatolii , Basiuk Tetiana
Published: August 2022

The article is devoted to a scientific review of the Cossack monuments network in the territory of Ukraine from the historical and tourist point of view. The sights are systematized according to the selected five Ukrainian Cossacks’ history periods.
The article highlights the problems of effective use of Cossack monuments in tourism and proposes the construction of new Cossack monuments and the creation of new tourist routes to the sights of Cossack glory.
Synthetic Dyes for Textile Colouration: Process, Factors and Environmental Impact
Authors:   Department of Textile Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh, Islam Md. Touhidul , Islam Tarekul ,   Department of Textile Engineering, Mawlana Bhashani Science and Technology University, Tangail, Bangladesh, Islam Tarikul ,   ZR Research Institute for Advanced Materials, Sherpur, Bangladesh, Repon Md. Reazuddin ,   Department of Production Engineering, Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Kaunas, Lithuania
Published: August 2022

Dyes are substances that enhance the appearance of finished goods by providing uniform colour. Dyeing is the application process of dyes that are fixed in textile fibers. The dyeing process uses various steps, including pre-treatment, desizing, scouring, bleaching, carbonizing, degumming, and mercerization. Water is considered the primary medium for applying dyes and other chemicals for this treatment in the dyeing process. The dyeing process contains many toxic chemicals, metals and non-soluble substances, such as wastewater, which is thrown into the environment. It is noted that, during dyeing , around 50-300 liters of water is required for 1 kg of fiber. On the other hand, 1-2 million liters of water are needed every day for 50,000 meters of daily production. This massive amount of toxic wastewater is highly harmful to the environment, human health, aquatic system, soil, air, water, plants, and animals. This review paper states various dyeing processes with different dyes, including acid dye, direct dye, sulfur dye, reactive dye, vat dye, metal complex dye, azo dye, disperse dye, and basic dye. In contrast, it also describes the influencing factors of dyeing processes and methods. Moreover, this review demonstrates the impacts of textile dyes on the environment (water, soil, air emissions, human health) and illustrates possible remedial actions regarding wastewater.
Gambaran Pengetahuan Dan Sikap Pembeli Terhadap Kandungan Klorin Pada Beras Yang Dijual Di Pasar Kranji Bekasi
Authors: Lestari Risda , Asiah Nur , Ramli Inaku Awaluddin Hidayat
Published: August 2022

Chlorine is a chemical that is usually used as a germ killer. In addition, chlorine is also commonly used for clothing and paper, but an important concern is when chlorine is used as an ingredient in rice whitening, because the chlorinated rice will look like super-quality rice. The purpose of this study was to determine the buyer's knowledge and attitudes about the chlorine content of rice and to determine the chlorine content in the rice sold at Kranji Market in Bekasi. This research is a descriptive survey research. The objects in this study were 100 (One Hundred) respondents and 10 (ten) types of rice and were then examined at UPT Tangerang City Health Laboratory using the Uv-Vis Spectrophotometry Test. The sample technique is Accidental Sampling. The research instrument uses a questionnaire sheet. Univariate results show that 80% of rice buyers have low knowledge of rice containing chlorine and rice buyers have a positive attitude towards consumption of rice containing 63% of chlorine. Based on this research, it is suggested for buyers to be more careful in choosing the rice to buy as a form of prevention to maintain health from the dangers of using chlorine in rice when consumed.
Analisis Pengetahuan, Motivasi Dan Tindakan Masyarakat Dalam Pencegahan Demam Berdarah Dengue
Authors: Siregar Putra Apriadi , Ashar Yulia Khairina
Published: August 2022

North Sumatra Province is one of the provinces that has the highest incidence of dengue fever in Indonesia, Binjai City has dengue incidence and even death cases in North Sumatra Province. Community knowledge and motivation are essential to support dengue prevention measures in Binjai City. The purpose of this study was to analyze the relationship between knowledge and motivation on community action in the prevention of dengue fever in Cengkeh Turi Village, Binjai Utara District, Binjai City. This study used a cross-sectional design. The sample in this study was 66 people. Data analysis used the Chi-square test and Prevalent Rate (PR). The results of this study indicate that the chi-square analysis shows that there is a relationship between knowledge (p <0.001) and motivation (p <0.001) with dengue prevention measures (p <0.001) in Cengkeh Turi Village. People who have high motivation have a risk of taking preventive measures for DHF by 5,750 times compared to people who have low motivation. Puskesmas officers in Cengkeh Turi Village, Binjai Utara District expected to make an effort to approach local community groups such as recitation groups and youth groups in increasing community motivation in taking dengue prevention measures.
The Effect of Round Shoulder Posture Correction on Respiration and Concentration
Authors:   Korean Academy of Cardiorespiratory Physical Therapy, Lee Han-Gyeol , Ko Dae-Sik , Jung Dae-In
Published: August 2022

Purpose: The study aimed to investigate the effect of round shoulder posture correction on respiration and concentration.
Methods: A total of 34 college students were included in this study. The participants were divided into three groups: group 1, stretching and stability (n = 12); group 2, stretching and strengthening (n = 12), and group 3, control (10). The exercise interventions were conducted for 4 weeks. Group 1 performed warm-up, stretching, muscle strengthening, and cool down for 30 min. Group 2 performed warm-up, stretching, stabilization, and cool down for 30 min. Group 3 did not receive any intervention. All groups performed round shoulder posture tests, lung capacity tests to determine respiratory function, stroop test, and concentration ability test to determine the concentrations before and after intervention.
Results: Significant differences were found in the round shoulder posture on the left between before and after interventions over time (p < 0.05) and between groups (p < 0.05). However, no interaction was observed. The post-hoc test showed that the interventions in group 2 were more effective than those in group 3. A significant difference was noted in the round shoulder posture on the right between before and after intervention over time (p < 0.05). No significant difference and interaction were found between groups. No significant difference was noted in lung capacity. A significant difference in the stroop test (time and number of wrong answers) was found between before and after intervention over time (p < 0.05). No significant difference and interaction were found between the groups. No significant difference was found in the concentration ability test.
Conclusion: Our results reveal some evidence that stretching and strengthening exercise causes a decrease in round shoulder posture. However, the intervention period was short and did not allow investigation of the effects on respiratory function and concentration. Continued research on this subject could provide benefits to physiotherapy as it relates to cardiopulmonary treatment.
THE EFFECT OF PUSH, PULL AND MOORING FACTORS TO SWITCHING INTENTION OF POST-PAID ELECTRICAL CUSTOMER’S TO PREPAID ELECTRICAL
Authors: Isnitahnia Mirna Erviana , Karnowahadi Karnowahadi , Nurkhayati Isnaini
Published: August 2022

Prepaid electricity is expected to increase customers’ satisfaction and reduce the overdue payments of postpaid electricity customers each month, but until 2019 the number of customer who switch to using prepaid electricity is still low in Klaten City.  This research was conducted to determine the effect of push, pull and mooring factors on switching intention postpaid electricity customers to prepaid at PT PLN (Persero) ULP Klaten Kota.  The data that used are primary data obtained using a quetionarry, interview and literature review.  The sample in this study were 100 person that is prepaid electricity customers who had used postpaid electricity.  Sampling is done by using non probability sampling method that is incidental sampling. The analytical model used is multiple linear regression analysis.  The ressult of the coefficient of determinan (Adjusted R Square) showed that 41,2% switching intention customers is influenced by push, pull and mooring factors.  The rest was explained by other factors not examined in this study.  The result of hypothesis testing show that push, pull and mooring factors together have a significant possitive effect, partially pull and mooring have a significant possitive effect while the push factor have an possitive effect but not significantly on switching intention customer  of PT PLN (Persero) ULP Klaten Kota.
THE EFFECT OF PRODUCT QUALITY TOWARD INTEREST IN BUYING UMKM PRODUCTS IN TASIKMALAYA CITY
Authors: Lestari Suci Putri , R Kusuma Agdhi
Published: August 2022

UMKM  represent business activities that can expand employment and reduce problems while also providing economic services to the community and can facilitate the process of equity and increase public budgets, encourage economic growth, and enhance national success. This study aimed to look at differences in product quality towards the buying interest of UMKM products in Tasikmalaya. And to know the purpose of increasing consumer buying interest. Research uses explanatory research methods. Use this method because research not only discusses empirical facts found in the field, but also discusses and explains the relationship between indicators. Using the sampling method by opposing questionnaires to 120 residents of Tasikmalaya who know about UMKM  information in Tasikmalaya. The object of research is UMKM in the City of Tasikmalaya. The research subjects are consumers of UMKM  products. Analysis using regression with the results of product quality affect the buying interest of UMKM products in the city of Tasikmalaya
The Influence of Organizational Culture and Workload on Employee Work Performance at PT Angkasa Pura I (Persero) Ahmad Yani International Airport Semarang
Authors: Lutvi M Hafiidh , Utaminingtyas Rara Ririn Budi , Farouk Umar -
Published: August 2022

This study aims to determine the influence of the organizational culture and workload on employee work achievement at PT Angkasa Pura I (Persero) Jenderal Ahmad Yani International Airport Semarang both simultaneously and partially. Data collection methods used in this study were observation, interviews and questionnaires. The population used in this study was 115 employees of PT Angkasa Pura I (Persero) Jenderal Ahmad Yani International Airport Semarang. The sample in this study was 60 employees of PT Angkasa Pura I (Persero) Jenderal Ahmad Yani International Airport Semarang. The sampling technique used is purposive sampling. The types ofdata used in this study are primary data and secondary data. The data analysis model used is multiple linear regression. Data analysis techniques for hypothesis testing used the F test, t test and R2 test. This study indicates that (1) organizational culture has a positive and significant effect on employee work achievement. (2) workload has a significant positive effect on employee work achievement. (3) organizational culture and workload have a significant effect on employee work achiement, and (4) partially the dominant influence is workload. Organizational culture and workload contributed 37,3% to employee work achievement. This means that 62,7% is explained by other factors not examined in this study. The next researcher should be able to use variables that are not used in this study. namelywork discipline, work environment, loyalty, work motivation and job satisfaction.
The Influence of Work Competence, Mutation, and Promotion on Employee’s Performance at Finishing Department of CV Laksana Karoseri Ungaran
Authors: Lestari Yunita Dwi , Rustono Rustono - , Purnamasari Eva -
Published: August 2022

This study aimed to analyze the effect of work competence, mutation, and promotion on the performance of finishing employees at CV Laksana Karoseri Ungaran. The population in this study were all 72 employees of the finishing department, and the sample was 61 employees who were selected using nonprobability sampling technique with purposive sampling method. The data analysis model used in this study is a multiple linear regression analysis model and the analysis technique used the f test and partial test (t test) with the SPSS 24 program. The results of hypothesis testing indicate that work competence and promotion has a significant positive effects on employee’s performance, while mutation variable has no significant effect on employee performance. The results of the f test show that together the variables of work competence, mutation, and promotion have a significant positive effects on the employee’s performance in the finishing department of CV Laksana Karoseri Ungaran
The Effect of Customer Relationship Management and Service Quality to Customer Loyalty on Indihome Customers PT Telkom Indonesia Regional IV Semarang City Area
Authors: Kinasih Mahastu Winengku , Riyadi Riyadi - , Setyawan Nanang Adie
Published: August 2022

The purpose of this research to analyze the effect of customer relationship management and service quality on customer loyalty to IndiHome on customers of PT Telkom Indonesia Regional IV Semarang City Region. The data collection method used is a questionnaire and documentation using a measurement scale semantic differensial and the sample collection method is incidental sampling of 100 respondents. The types of data used in this study are primary data and secondary data. The data analysis model used is multiple linear regression. The data analysis technique for hypothesis testing uses the F test, t test and R2 test with IBM SPSS 23 analysis tool which shows that the regression equation Y = 0.372X1 + 0.427X2. Based on the test results the coefficient of determination is 54.8% while the remaining 45.2% is influenced by other factors that are not included in this study. The results of this study can be concluded that customer relationship management and service quality have a positive and significant influence on customer loyalty.
Influence of Electronic Word of Mouth (E-Wom), Product Quality and Price on Purchase Intention a Mitsubishi Type Xpander Car at PT Sun Star Motors Mitsubishi Mt Haryono Semarang
Authors: IP Lutfiana Kaja , Winarto Winarto - , Taviyastuti Taviyastuti -
Published: August 2022

This study aims to empirically examine the effect of electronic word of mouth (e-WOM), product quality and price on the purchase intention of a Mitsubishi Xpander car. This analysis uses independent variables, namely the influence of electronic word of mouth (e-WOM), product quality and price. The dependent variable is purchase intention. The sample of this research is consumers who buy Mitsubishi type Xpander cars at Mitsubishi MT Haryono dealers Semarang in 2020. Data collection is done by questionnaires distributed via google form to consumers as many as 50 questionnaires. The statistical method used Multiple Linear Regression Analysis and obtained the equation Y = 0.265X1 + 0.326X2 +0.478X3. The results showed that partially electronic word of mouth (e-WOM), product quality and price had a significant and positive effect on purchase intention. Purchase intention is explained by electronic word of mouth (e-WOM), product quality and price are 73.1%, while 26.9% is explained by other variables not examined in this study.
The Influence of Workload and Work Stress on Employee Performance at PT Pos Indonesia (Persero) Kantor Sentral Pengolahan Pos Semarang
Authors: Prasetyani Winda Martha , Rustono Rustono - , Suwardi Suwardi -
Published: August 2022

Human resources are the main role in achieving corporate objective. This study aims to analyse the workload and work stress on Employee Performance at PT Pos Indonesia (Persero) Kantor Sentral Pengolahan Pos Semarang. This research is a quantitative study with 38 respondents. The sampling technique is saturated sampling technique. The data-collection technique used are questionnaires, interviews, and literature review. The analysis technique used was multiple linear regression. The result shows that partially workload is negative and insignificant influence on employee performance, and work stress is positive and significant influence on employee performance. Simultaneuously workload and work stress have significant influence on employee performance. The influence of workload and work stress on employee performance is shown by Adjusted R Square value 0,115 (11,5%) and the remaining 88,5% are influenced by other variables that are not studied in this research
ANALISIS SIFAT KIMIA TANAH PADA LAHAN PERTANIAN DI KELURAHAN KAWANGU KECAMATAN PANDAWAI KABUPATEN SUMBA TIMUR
Authors: Andira Umbu
Published: August 2022

Kawangu Village is one of the areas in Pandawai District which has a large agricultural land. However, until now there is no information about the state of soil chemistry on agricultural land. Knowledge of soil chemical properties will provide important information in the context of managing an agricultural land. This study aims to analyze the chemical properties of soil on agricultural land in Kawangu Village, Pandawai District, East Sumba Regency, East Nusa Tenggara Province. This research was carried out in May-June 2022 at Kawangu Village. The research was conducted by survey method and sampling and the samples were analyzed in order to obtain the results of the analysis. The chemical properties observed were available N, available P, available K, cation exchange capacity (CEC), and base saturation (BS). The results showed that the content of N elements ranged from 0.11-0.66% (low to high status), P elements ranged from 15.58-57.78 ppm (low to high status) and P elements ranged from 15.58-57.78 m.e./100g (moderate to Very high status). The condition of the soil CEC ranged from 34.56-39.65 m.e./100g and the soil KB ranged from 72.72-95.71%.Kawangu Village, soil chemical properties
SİGORTACININ BİLGİLENDİRME VE AYDINLATMA YÜKÜMLÜLÜĞÜ
Authors: ASLAN Adem
Published: August 2022

6102 sayılı TTK’nın 1423. Maddesinde zürenlenen bilgilendirme ve aydınlatma yükümlülüğü sigortacıların en önemli yükümlülüklerinden birisidir.
Bir önceki düzenleme olan 6762 sayılı TTK’da sigortacıların bilgilendirme ve aydınlatma yükümlülüklerine ilişkin özel bir düzenleme bulunmuyordu. Ancak,
6102 sayılı TTK zamanında ise sigortacının bilgilendirme yükümlülüğü “aydınlatma” terminolojisi kullanılarak Kanunun 1423. maddesinde özel olarak düzenlenmiştir. Ancak konu yeni Kanun’da özel olarak düzenlenmiş ise de, bu yükümlülüğün ihlali halinde yapılabilecek olan itiraz hakkının 14 günle sınırlandırılmış olması önemli bazı yeni sorunları gündeme taşımıştır. Bu konuda bir kanun boşluğu bulunduğu da söylenebilir.
Lectura académica en la formación de investigadores: la función pedagógica del director de tesis
Authors: Zanotto González Mercedes , Platas-García Alejandra
Published: August 2022

El recorrido formativo de los doctorandos para la realización de sus investigaciones se acompaña de procesos de lectura académica complejos, sin embargo, existen escasas investigaciones que lleven a cabo un análisis al respecto, así como en lo referente a la función pedagógica que puede desempeñar el director de tesis para favorecer el desarrollo de este tipo de lectura. Dada esta situación, en el presente ensayo, a partir de un análisis de estudios que se enfocan o se aproximan a esta temática, se visibilizan los desafíos que requieren afrontar los doctorandos al efectuar distintos tipos de lectura acorde con los diferentes procesos de su investigación. Así también se abordan recursos pedagógicos que pueden aplicar los directores de tesis para coadyuvar al desarrollo de una lectura académica enfocada a la investigación, en los que se considere el proceso formativo del doctorando. Aunado a ello se señala la necesidad de realizar estudios que permitan una comprensión mayor de los procesos de lectura académica de los doctorandos, así como el desarrollo de estrategias pedagógicas sistematizadas que pueda aplicar el director de tesis para favorecerlos, acorde con el proceso formativo del estudiante y su campo disciplinar.
L2 teaching and learning in Waldorf schools – why performative?
Authors: Rawson Martyn
Published: August 2022

This paper outlines the theory underpinning Waldorf L2 teaching and learning and shows that this approach requires performative methods. It provides a theoretical account that aligns with and underpins other articles in this issue of Scenario. It locates Waldorf language teaching within the overall frame of Waldorf pedagogy and its aims and in doing so the paper relates this approach both to Steiner’s educational ideas and to contemporary education science. The paper explains the thinking behind teaching two other languages from the age of six (grade 1) onwards and outlines the different approaches in the lower, middle and upper school. It supplements existing accounts within the Waldorf literature by opening this discourse to an interpretation of L2 pedagogy in the light of, for example, socio-cultural, usage-based approaches, the declarative/procedural model and complex dynamic systems theory and links the Waldorf approach to embodied cognition theory. The aim throughout is to explain why the Waldorf approach is or, in the author’s view, should be essentially performative.
Developing the artistry of the teacher in Steiner/Waldorf Education (Part II)
Authors: Lutzker Peter
Published: August 2022

After describing the general Steiner/Waldorf teacher education program in the previous article (Part I), this article will examine the additional courses specifically required for teaching English as a foreign language. It considers Rudolf Steiner’s concept of a specific ‘sense for language’ as a basis for a performative approach to foreign language teaching and learning and discusses the implications of research on linguistic-kinesic behaviour for foreign language learning and for teacher education at Freie Hochschule Stuttgart (Waldorf Teachers College). It describes performative approaches to teaching poetry and prose fiction and explains the central role which both authentic literature and different forms of informal learning play in Steiner/Waldorf foreign language teaching and learning. Finally, it discusses a Steiner/Waldorf approach to teaching literature rooted in an understanding of teaching as an art.
Humanização no cuidado na UTI adulto
Authors: Santos Raisa Silva dos , Amorim Layna Pereira , Santos Larissa Lessa dos , Monteiro Luana Valentim , Dourado Grace Kelly da Silva , Cardoso Rachel da silva Serejo
Published: August 2022

Introdução: A Unidade de Terapia Intensiva Adulto é um setor definido pelo monitoramento constante e cuidados mais complexos de uma equipe especializada composta por profissionais de diferentes áreas, devido ao agravo dos pacientes hospitalizados. Objetivo: Identificar estratégias em prol da aplicabilidade do cuidado humanizado de Enfermagem na literatura científica analisando como é implementado na Unidade de Terapia Intensiva Adulto. Métodos: Estudo com abordagem qualitativa/integrativa, tendo como base de dados a Biblioteca Virtual de Saúde usando os Descritores em Ciências da Saúde: Humanização da Assistência; Cuidados Críticos; Enfermagem. Selecionados artigos completos, disponíveis, em língua portuguesa, inglesa e espanhola entre 2016 e 2021. Ao fim da aplicação, foram selecionados 10 artigos para produção do conteúdo. Resultados: Na análise de dados observou-se maneiras de proporcionar o cuidado humanizado ao paciente na Unidade de Terapia Intensiva Adulto e a importância da equipe ao apoio à família como parte do cuidado prestado. Conclusão: A humanização não deve ter apenas o paciente como foco, mas também os familiares que sofrem no processo de internação e os profissionais de saúde, que, por serem protagonistas desse processo, necessitam de reconhecimento e valorização do trabalho.
Conhecimento e aplicação de testes e instrumentos de avaliação em fisioterapia pediátrica e neonatal
Authors: Moreira Andressa Franco , Rebelo Luanna Andrade Jacob , Mendes Daiana de Jesus da Silva , Guimarães Marina Aguiar Pires , Bouzas Maiara Lanna Souza Bacelar , Soares Moema Pires Guimarães , Novais Michelli Christina Magalhães
Published: August 2022

Introdução: Os instrumentos de avaliação podem permitir a mensuração de déficits funcionais, corroborando para um diagnóstico mais assertivo. Objetivo: Investigar o conhecimento e a aplicação de instrumentos/testes de avaliação em fisioterapia neonatal e pediátrica. Métodos: Observacional, descritivo, de corte transversal, realizado entre dezembro de 2020 e abril de 2021. Foram avaliados o conhecimento e a aplicação de instrumentos/testes de avaliação por fisioterapeutas que atuam em pediatria e/ou neonatologia na cidade de Salvador/BA. A coleta foi realizada através de um formulário online, produzido pelas autoras, e composto por 24 questões. Resultados: A amostra foi composta por 70 participantes, idade média de 32,5 ± 6,6 anos, 95,7% feminino, 32,9% com pós-graduação Lato Sensu, 51,4% atuavam no regime público, 30% trabalhavam em até dois setores. A mensuração da força muscular respiratória foi o teste mais conhecido (94,3%) e a Escala de Estado Funcional Pediátrica (FSS) o instrumento menos conhecido (41,4%) pelos fisioterapeutas. O instrumento/teste mais e menos aplicados na prática clínica foram, respectivamente, a mensuração da força muscular respiratória (47,1%) e o Denver II (71,4%). Conclusão: Apesar de haver maior frequência de fisioterapeutas que relataram conhecer os instrumentos/testes analisados, houve predominância da não aplicação destes na prática clínica.