bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study of stress-strain state during cross-wedge rolling with one tool
Authors: Kozhevnikova G. V. 
Published: July 2019

The peculiarity of cross-wedge rolling with one tool is the workpiece deformation with one tool and the fact that the workpiece is not supported with the tool from the opposite side. On both sides of the tool outside the contact with the workpiece, the workpiece is fixed with pairs of upper and lower tools, by means of which the axis of the workpiece is held in a constant position. Such conditions of rolling qualitatively change the deformation zone and, as a result, the stress-strain state.The change in the stress-strain state was qualitatively estimated by comparing the fields of slip lines in the traditional two-tools cross rolling and one-tool cross rolling. One-tool cross rolling increases the normal and average stress at the contact by 7.8–14.5 %, changes the average stress of the specimen from tensile to compressive one in the axial region. This circumstance significantly increases the resource of plasticity and allows rolling metals with limited plasticity without opening the axial cavity. Comparative studies of the stress-strain state from the traditional two-tools cross-wedge rolling and one-tool cross-wedge rolling in the axial region of the workpiece have been carried out by computer simulation.
Research on the Teaching Strategy of Broadcasting and Hosting Specialty in Colleges and Universities from the Perspective of New Media
Authors: Wang Yuanyuan 
Published: July 2019

[Abstract] With the continuous development of science and technology and the comprehensive arrival of the information era, new media has gradually emerged and developed, which has had a serious impact on the original media form. Under the background of new media, higher requirements are put forward for the education and teaching activities of broadcasting and hosting specialty in colleges and universities, and the combination of new media technology and Chinese educational practice is the general trend in the current education field, which can effectively improve students’ learning quality and learning effects, and provide a broader space for the development of new media professions. This paper mainly explores the teaching strategies of broadcasting and hosting specialty in colleges and universities from the perspective of new media.
Analisis Evaluasi Kinerja Vendor Berdasarkan Penetapan Kriteria Vendor Performance Indicator (VPI) Menggunakan Metode Analytical Hierarchy Process (AHP) Pada PT. XYZ
Authors: Pramita Nadya Uci , Wirawan Adhitomo 
Published: July 2019

The purpose of this study is to analyze the process of performance evaluation of vendors especially in the vendor that provides a raw material for pressure vessel plate made of carbon steel. As for the evaluation process undertaken by PT. XYZ through performance indicators (KPI) where an evaluation that applied a focus on quality and delivery. In this study, researchers used the designation criteria vendor performance indicator (VPI) where the criteria used consist of quality, cost, delivery, flexibility and responsiveness (QCDFR). The methods used in the analysis process that is Analytical Hierarchy Process (AHP). Data collecting directionally by questionnaire method among 3 respondents on the procurement department that know the performance of the vendors over the years. The result showed that PT. RE has the best performance among the four vendors, as known PT.SS, PT. ST, PT. CH and PT. UN within value 0.540; The vendor with lowest performance owned by PT.CH within value 0.034.Â Penelitian ini bertujuan untuk menganalisis proses evaluasi kinerja vendor khususnya pada vendor yang mensupplai bahan baku plate pressure vessel berbahan carbon steel. Adapun proses evaluasi yang dilakukan oleh PT. XYZ melalui key performance indicator (KPI) dimana evaluasi yang diterapkan hanya berfokus pada quality dan delivery. Dalam studi ini, peneliti menggunakan penetapan kriteria Vendor Performance Indicator (VPI) dimana kriteria yang digunakan yaitu quality, cost, delivery, flexibility dan responsiveness (QCDFR). Metode yang digunakan dalam proses analisis yaitu Analytical Hierarchy Process (AHP). Pengambilan data menggunakan kuisioner terhadap 3 informan pada departemen procurement yang dianggap mengetahui kinerja vendor selama ini. Adapun hasil penelitian menunjukkan bahwa PT. RE memiliki kinerja yang terbaik diantara keempat vendor yaitu PT. SS, PT. ST, PT. CH serta PT. UN dengan nilai bobot sebesar 0.540 sedangkan vendor dengan kinerja terendah dimiliki oleh PT. CH dengan nilai bobot sebesar 0.034.Â
Kecerdasan Spiritual dan Kebahagiaan Pada Narapidana Wanita
Authors: Condinata Frida , Elvinawanty Rianda , Marpaung Winida 
Published: July 2019

AbstractÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Happy life is everyone's hope, but happiness is influenced by many factors. This study aims to determine the relationship between spiritual intelligence and happiness. The subjects of this study were female inmates at the Class IIA Medan Women's Penitentiary of 186 people. The research data was obtained using a scale of spiritual intelligence and happiness. The data analysis used is Product Moment correlation through SPSS 18 for Windows. The results of data analysis showed a correlation coefficient of 0.664 and a significance value of 0.000 (p <0.05). This shows there is a positive relationship between spiritual intelligence and happiness. The results of this study indicate that the contribution given by the variable spiritual intelligence to happiness is 44.1 percent, the rest 55.9 percent is influenced by other factors not examined. It can be concluded that spiritual intelligence has a big influence on the happiness of female prisoners.Keywords: Happiness, Spiritual IntelligenceÂ Â AbstrakÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Hidup bahagia adalah harapan semua orang, namun demikian kebahagiaan dipengaruhi oleh banyak faktor. Penelitian ini bertujuan untuk mengetahui hubungan antara kecerdasan spiritual dengan kebahagiaan. Subjek penelitian ini adalah narapidana wanita di Lembaga Pemasyarakatan Perempuan Kelas IIA Medan sebanyak 186 orang. Data penelitian diperoleh menggunakan skala kecerdasan spiritual dan kebahagiaan. Analisis data yang digunakan adalah korelasi Product Moment melalui bantuan SPSS 18 for Windows. Hasil analisis data menunjukkan koefisien korelasi sebesar 0,664 dan nilai signifikansi sebesar 0,000 (p<0,05). Ini menunjukkan ada hubungan positif antara kecerdasan spiritual dengan kebahagiaan. Hasil penelitian ini menunjukkan bahwa sumbangan yang diberikan variabel kecerdasan spiritual terhadap kebahagiaan sebesar 44,1 persen, selebihnya 55,9 persen dipengaruhi oleh faktor lain yang tidak diteliti. Dapat disimpulkan kecerdasan spiritual memiliki pengaruh yang besar terhadap kebahagiaan narapidana wanita.Kata kunci: Kebahagiaan, Kecerdasan Spiritual
Phosphorus recovery from urine by adding difference sources of magnesium ion, applying for rural, coastal and island areas in Vietnam
Authors: Anh Do Hong , Anh Nguyen Viet 
Published: July 2019

In coastal areas and islands, farmlands often lack of nutrients. This research assessed the precipitation of phosphorus presenting in urine in the form of struvite of magnesium ammonium phosphate (MAP) by adding of supplement of Mg2+ ion from MgCl2 solution contained in seawater (Cat Ba island area). The urine and seawater have been mixed at different ratios. The results have shown [Mg]:[PO4] ratios ranging from 0.75 to 5.26 allowed the precipitation of more than 90% of the phosphorus in the urine. Seawater – to – urine ratios of 0.67/1, 1.3/1, 3.2/1, 5/1, 7/1 and 9/1 in volume would give phosphorus recovery efficiency of 99%, 92%, 96%, 96%, 95% and 99%, respectively. Seawater in the studied area could be an appropriate Mg2+ ion source to produce MAP from urine diverting dry toilets. Recovered phosphorus can be used as slow releasing fertilize for farming.
Keywords: MAP: phosphorus recovery; seawater; urine; struvite.
Received 24 October 2018, Revised 23 December 2018, Accepted 29 January 2019
Application of Hilbert Huang transform to identify the natural frequencies of steel frame
Authors: Trung Nguyen Thanh 
Published: July 2019

Identification of dynamic structural characteristics such as natural frequency based on measured vibration responses at site is one of the important steps in the structural investigation work of loading test and structural health monitoring. During the service stage, the dynamic characteristics can be changed due to the stiffness reduction and nonlinear of structure under extrema excitation. Therefore, the identification of instantaneous parameters of structure is very necessary in detecting and monitoring the structural deterioration continuously by the time. This paper presents the data processing method using Hilbert Huang Transform (HHT) algorithm in determining a time-dependent frequencies of steel frame. The vibration experiment for steel frame was conducted in this study. The acceleration responses in time domain were recorded and analyzed by HTT to determine the fundamental natural frequencies of frame. The instantaneous frequencies in the time domain of steel frame are the main finding in this research. The traditional data processing method using a Fast Fourier Transform (FFT) was conducted and compared with the HHT method.
Keywords: Hilbert Huang Transform (HHT); steel frame; Fast Fourier Transform (FFT); natural frequency.
Study on producing light weight concrete with foam glass granules
Authors: Long Hoang Vinh 
Published: July 2019

In the world, waste glass is widely recycled, especially in developed countries with a recycling rate of about 30-90%. Currently, in Vietnam glass emissions in urban areas account for 1.5-2% of solid wastes; however, few studies mention this waste. Therefore, light weight concrete (LWC) using foam glass granulates (FGG) is the object of this paper. In the study, the raw materials are FGG, But Son PC40 cement, Pha Lai fly ash and Sikament superplasticizer named R4. The experimental results show that with FGG content of 50% (by volume), the LWC’s bulk specific gravity is 1302 kg/m3 and compressive strength at 28 days is 89 kG/cm2.
Keywords: waste glass; foam glass granulate; light weight concrete.
Evaluation of ion exchange material from sulfonated polystyrene waste synthesized for removal Cr3+ from aqueous solution by column experiment
Authors: Thuy Pham Thi 
Published: July 2019

The paper aims to study the effect of operating conditions in the column experiment with the ion exchange material which was prepared in optimum synthesized conditions. Polystyrene waste from disposable food packaging was dissolved in cyclohexane and sulfonated by sulfuric acid to synthesize cation exchange materials which were applied to remove Cr3+ in water by the ion exchange principle. The optimum conditions for this method were found out and described in previously published literature of the author. Characterization by SEM and Fourier Transforms Infrared (FT-IR) spectroscopy proved that the additional Sulfonic groups were presented. The efficiency of Cr3+ removal was highly affected by column bed height, initial ion concentrations and flow rate of effluent. The highest efficiency of material was 84.0% with a material bed height of 10 cm in the removal of Cr3+ from simulated wastewater containing initial Cr3+ concentration of 120 mg/l. The experimental data obtained from this study was consistent with Thomas and Yoon-Nelson kinetic models, which will be applied for column design in practical study and design. The results from this method can help reduce the plastic waste and easy to apply in practice for removal of Cr3+ in wastewater.
Keywords: ion exchange; polystyrene waste; synthesize; chromium.
La forêt suisse entre approvisionnement en bois et multifonctionnalité (essai)
Authors: Zarin-Nejadan Milad 
Published: July 2019

The Swiss forest between wood supply and multifunctionality (essay)
Swiss forestry operations have been in deficit for decades. Timber prices fall while production costs rise. At the same time, demand for non-market forest services continues to increase. The challenge is to ensure a sustainable timber supply from Swiss forests in the future, while taking into account the multifunctionality of the forest. According to the results of a Swiss national science foundation research project on this issue, non-market forest services are highly valued by the population. The study also identified significant potential for improving the performance of forest operations, in particular by achieving economies of scale. In addition, the exploitation and maintenance of the forest has positive externalities, which justifies the payment of targeted public subsidies to the forest sector.
Determination of the critical parameters of the technological process of obtaining solid dosage forms with dry extract and crushed roots and rootes of Scutellaria baicalensis
Authors: Slipchenko G. D. 
Published: July 2019

An important condition for obtaining a high-quality drug is the determination of critical points and parameters of the production process, which is divided into several successive stages.
The aim study of the critical parameters of the production of tablets and capsules with vegetable raw materials. For this purpose, validation studies of technological processes were carried out for tablets with dry extract of Scutellaria baicalensis and hard gelatin capsules with vegetable raw materials.
The subject of our research was the technological process of obtaining tablets based on dry extract of the roots and rhizomes of Baikal skullcap and hard gelatin capsules based on crushed raw materials. We have identified critical process parameters for each stage. Validation tests were carried out for certain critical process parameters and acceptance criteria were calculated.
Quality control of finished tablets based on dry extract of Baikal skullcap and finished hard gelatin capsules based on crushed roots and rhizomes of Baikal skullcap was performed according to the following indicators: appearance, identification, average weight, mass uniformity, disintegration, dissolution, abrasion, microbiological purity, quantitative determination .
The obtained validation data of experimental-industrial series meet the acceptance criteria, and the developed technology is reproducible and promising for further validation.
On the basis of the obtained results, it can be concluded that the established critical values of the parameters of the production processes and their conditions of carrying out allow for stable and reliable production of semi-finished and finished products that meet the quality standards in accordance with regulatory documents.
Development of the gel-mask composition with nettle juice intended for telogen effluvium cutaneous application
Authors: Fedorovska M. I. , Polovko N. P. , Strilets O. P. 
Published: July 2019

Taking into account the frequency of telogen effluvium in women, pharmaceutical market demand, a wide range of pharmacological effects of plant biologically active substances, it is important to develop a new medicinal cosmetic remedy in the form of a gel-mask with nettle juice.
The aim of the work – the gel-mask composition development by the results of rheological, biological, microbiological and microscopic studies.
The objects of the experiment were gel-mask model specimens with different ratios of nettle juice and auxiliary substances, gel base samples in combination with essential oils and different content of solubilizer PEG-40 hydrogenated castor oil (PEG-40 hсo). The structural viscosity was determined on a brookfield-type viscometer at a temperature of 20 ºc and a spindle speed of 20 rpm. The nettle juice optimal concentration was substantiated on a paramecium caudatum biological model with studying of gel-mask antioxidant properties. effectiveness confirmation of 0.1% potassium sorbate preservative was carried out using the method of the Ukraine state pharmacopoeia 2.0 (USP 2.0), paragraph 5.1.3. The influence of the peg-40 hсo concentration on the essential oil dispersion degree was studied with microscopic method.
Considering influence of the auxiliary substances and nettle juice concentration on the gel-mask structural viscosity, the ingredients’ correlations were selected which reached the required viscosity limit for gels (2 000–10 000 mpa∙s), namely: carbopol ultrez 10 and sodium alginate by 0.5 %, potassium sorbate – 0.1 %, nettle juice – 10–20 the optimal concentration of nettle juice was 15%. It was justified by the results of the study of the antioxidant properties of the experimental samples on paramecium caudatum infusoria. The conducted microbiological studies confirmed the effectiveness of the application of 0.1% potassium sorbate preservative, which meets the requirements of criterion a for the USP 2.0. The influence of solubilizer peg-40 hco on the degree of mixture of essential oils dispersion when distributed on a gel basis was studied. it was confirmed that the optimal concentration of PEG-40 hco is 0.4%, namely the ratio 1:1 according to the content of the perfume.
According to the complex experimental researches, the optimal composition of the gel-mask with nettle juice intended for telogen effluvium cutaneous application has been worked out.
ANALISIS FAKTOR-FAKTOR YANG MEMPENGARUHI KEPATUHAN WAJIB PAJAK ORANG PRIBADI DAN DAMPAKNYA TERHADAP PENERIMAAN PAJAK, DENGAN PELAYANAN FISCUS SEBAGAI VARIABEL MODERATING
Authors: Jarno Jarno 
Published: July 2019

The aim of this research is to analyze and ine out the factors that influence the compliance of Individual Taxpayers and their impact on tax revenue, with fiscus service as a moderating variable. The data used are primary data with a total sample of 195 respondents.The analysis used with the Stucture Equations Model (SEM) with the LISREL 8.8 program. The test results show that knowledge of tax has a significant effect on tax compliance. Income level has a significant effect on tax compliance. Fiscus service does not significant effect on tax compliance. Tax Compliance has a significant effect novion tax revenue. Simultaneously Knowledge of taxes, income levels and fiscus services have a significant effect on tax compliance. Simultaneously tax knowledge, income level and tax compliance have a significant effect on tax revenue. iscus service can moderate between tax knowledge and tax compliance. Fiscus service can moderate between income levels and tax compliance.
A Hierarchical Model of Coping in the College Student Population
Authors: Pickens Bryon C. , Mckinney Robert , Bell Stephanie C. 
Published: July 2019

Research has indicated a fall in college student mental health over the past 16 years, with no corresponding increase in use of mental health care services. To investigate how college students choose to manage stressful issues, we assessed coping styles as measured by the dispositional COPE inventory in a multi-state sample of undergraduate students (N = 109).We tested a four-factor, hierarchical model of coping with a factor-based variant of partial least squares structural equation modeling (PLS-SEM), an approach noted for its accuracy with small sample sizes. Results indicated the existence of a hierarchical effect that explained 67.4 percent of variance in coping subscale scores, and validated the four factors of Approach, Avoidance, Social-Contextual, and Individual-Contextual coping styles. All coping style pairs had significant positive relationships (p < .002) with one exception; Approach and Avoidance had a significant negative relationship (p < .001). Implications for researchers and practitioners are discussed.
Determination of Glutathione in Austrian Wine Samples: The Effects of Freezing, the Choice of Yeast and Storage
Authors: Dragojlović Danka , Philipp Christian , Korntheuer Karin , Bader Christian , Patzl-Fischerleitner Elsa , Mandl Karin , Eder Reinhard 
Published: July 2019

Glutathione (GSH, γ-L-Glutamyl-L-Cysteinyl Glycine) is a tripeptide of L-glutamate, L-cysteine and glycine. GSH in wine is derived from either grapes or yeast, during alcoholic fermentation. The GSH concentration in wine is very variable and depends on the environmental conditions as well as viticultural practices. During winemaking GSH has a significant role in oxidation prevention due to its unique redox and nucleophilic properties. Since GSH is very reactive it is highly important to prepare samples immediately and under inert conditions just prior to the determination of the GSH concentration. Therefore the aim of this research was to implement a method for the quantitative determination of GSH levels in grape juices (musts) made from different Austrian grape varieties and to investigate the influence of yeast on the GSH content in wine after aging. The results of this research have shown that monitoring with nitrogen gas, sulphur dioxide and freezing process at −25 ºC led to a good protective effect on the free glutathione amount in wine and grape samples. The GSH concentration in the samples was variable. Levels were ranging from non-detectable to up to 23.10 mg/l, and it showed that grape variety has no impact on GSH concentration in the must. Furthermore the results suggest that the choice of yeast has an impact on GSH content in wine even after 6 and 18 months of aging.
Dibujo arqueológico e ilustración histórica: una profesión apasionante al servicio de la sociedad
Authors: Diéguez Uribeondo Iñaki 
Published: July 2019

El dibujo arqueológico y la ilustración histórica son disciplinas muy relacionadas entre sí que constituyen una parte fundamental de la ciencia arqueológica. Sus objetivos son documentar y proponer hipótesis de reconstrucción del pasado a la sociedad. Con la entrada en el siglo XXI y especialmente en la última década, se ha producido una auténtica revolución en nuestra profesión de la mano de las herramientas digitales, como la fotogrametría y el diseño digital o las técnicas de virtualización del patrimonio. Son muchos los retos que presenta el siglo XXI: debemos profundizar en una formación superior reglada y más completa, en una normalización del lenguaje del nuevo dibujo arqueológico y en iniciativas que vayan en la línea de reforzar y promocionar la figura del dibujante o ilustrador de arqueología. Se han comenzado a dar los primeros pasos ya en este sentido. Cabe destacar la creación de las primeras especialidades universitarias y de la Asociación Nacional de Dibujantes e Ilustradores de Arqueología (ADARQ).
Nos encontramos en un período de crisis, entendido como cambio, en el que se han multiplicado las opciones gráficas disponibles y la manera de presentarlas al público, devolviendo este conocimiento a la sociedad. La importancia y la vigencia de nuestra profesión y de la imagen en arqueología y su papel en la difusión de patrimonio es si cabe hoy día más importante aún de lo que lo ha sido hasta ahora.
Using Glass’ Analysis Method to Improve the Students’ Speaking Skill
Authors: Irwan Kasmin 
Published: July 2019

This research aimed at explaining the use of Glass’ Analysis Method in improving the students’ pronunciation in speaking at the seventh grade students of SMP Negeri 1 Salomekko Kab. Bone. The researcher used pre-experimental design with one group pretest and posttest design. The population was the seventh grade students of SMP Negeri 1 Salomekko Kab. Bone., in academic year 2017/2018, which consisted of six classes. The sample was taken by purposive sampling technique and the total number of sample was 26 students. It conducted in six meetings. It was administered speaking test as instrument. The findings of the data indicated that there was significant difference between students’ post-test and pre-test. The mean score in post-test (8.10) was greater than the mean score in pre-test (5.42). From t-test, the researcher found that the value of t-test (8.61) was greater than t-table (2.060) at the level of significance 0.05 with degree of freedom (df) = 25. Thus, the alternative hypothesis (H1) was accepted and the null hypothesis (H0) was rejected. It means that there was a significant difference in the students’ pronunciation in speaking before and after being taught by using Glass’ Analysis Method