bluuebunny/crossref_metadata_2025_split huggingface dataset:
Комбинированное обратно-прямое выдавливание полых конических деталей
Authors: Aliiev I. S. , Tagan L. V. , Samoglyadov A. D. , Makhmudov K. D. 
Published: January 2021

Алиев И. С., Таган Л. В., Самоглядов А. Д., Махмудов К. Д. Комбинированное обратно-прямое выдавливание полых конических деталей // Обработка материалов давлением. – 2019. – № 2 (49). - С. 98-105.
Целью работы является определение возможности реализации процесса комбинированного обратно-прямого выдавливания без перехода к обратному выдавливанию на заключительной стадии процесса. При анализе методом конечных элементов процесса выдавливания в качестве основных управляющих параметров были приняты коэффициенты трения металла по матрице и пуансону. В ходе проведенных исследований процесса комбинированного обратно-прямого выдавливания было установлено, что изменение силы выдавливания по ходу процесса неравномерно и можно разделить на три основных стадии. На первой стадии происходит резкое увеличение силы выдавливания при расспрессовке заготовки. На второй стадии процесс можно считать установившимся, т. к. возрастание силы выдавливания незначительно. Третья стадия выдавливания наступает при соприкосновении нижнего торца полуфабриката с контрпуансоном и характеризуется резким скачком силовых параметров. Это связано с переходом от комбинированного течения металла к простому обратному выдавливанию. Установлено, что при малых значениях коэффициентов трения по инструментам преобладающим направлением течения металла является прямое. Увеличение длины наклонной образующей на матрице также влияет на течение металла. Чем меньше протяженность контакта заготовки с образующей матрицы, тем больше процессы выдавливания ставится похожим на процесс обжатия, при котором полуфабрикат втягивается в полость матрицы без изменения толщины дна. Установлено, что характерными дефектами деталей, полученных комбинированным обратно-прямым выдавливанием, являются незаполнения угловых зон детали и появление зазоров (утяжин) между торцем пуансона и дном полости.
Conditions for a Bigraph to be Super-Cyclic
Authors: Kostochka Alexandr , Lavrov Mikhail , Luo Ruth , Zirlin Dara 
Published: January 2021

A hypergraph $\mathcal H$ is super-pancyclic if for each $A \subseteq V(\mathcal H)$ with $|A| \geqslant 3$, $\mathcal H$ contains a Berge cycle with base vertex set $A$. We present two natural necessary conditions for a hypergraph to be super-pancyclic, and show that in several classes of hypergraphs these necessary conditions are also sufficient. In particular, they are sufficient for every hypergraph $\mathcal H$ with $ \delta(\mathcal H)\geqslant \max\{|V(\mathcal H)|, \frac{|E(\mathcal H)|+10}{4}\}$.
We also consider super-cyclic bipartite graphs: those are $(X,Y)$-bigraphs $G$ such that for each $A \subseteq X$ with $|A| \geqslant 3$, $G$ has a cycle $C_A$ such that $V(C_A)\cap X=A$. Such graphs are incidence graphs of super-pancyclic hypergraphs, and our proofs use the language of such graphs.
The Role of Discipline and Career Development in Improving Employee Work Achievement
Authors: Maulidiyah Nailin Nikmatul , Arifin Moh. Samsul , Setyawan Dian Ary 
Published: January 2021

This study aims to analyze the effect of discipline and career development on employee work achievement at
PT. Bank Syariah Mandiri Jember Brach office. The population in this study is permanent employees at PT.
Bank Syariah Mandiri Jember Brach office which numbered 54 employees. The analytical tool used in this
study is multiple linear regression analysis to test the effect of the independent variable on the dependent
variable. The results showed that the disciplinary significantly influence work achievement at PT. Bank
Syariah Mandiri Jember Brach office. Career development significantly influenced work achievement at
PT. Bank Syariah Mandiri Jember Branch Office. Simultaneously, discipline and career development
significantly influenced work achievement at PT. Bank Syariah Mandiri Jember Branch Office.

Keyword: Discipline; Career Development; Work Achievement
Raman and FTIR Spectroscopy of Synthetic Amphiboles: II. Divalent (Mg,Co) Substitutions at the Octahedrally Coordinated Sites
Authors: Della Ventura Giancarlo , Mihailova Boriana , Hawthorne Frank C. 
Published: January 2021

Abstract
Raman spectra were recorded for a set of synthetic amphiboles, Na(NaCa)(Mg5–xCox)Si8O22(OH)2 with x = 0–5, that have been previously characterized by Rietveld structure refinement and infrared spectroscopy in the principal OH-stretching region. The chemical compositions derived from the intensities of the O-H stretching Raman peaks are in accord with the nominal compositions, as well as with the compositions previously determined by both Rietveld structure refinement and infrared spectroscopy. Detailed peak assignments have been made of the Raman spectra in the low-wavenumber region (50–1200 cm–1) starting from the work of Leissner et al. (2015) and Waeselmann et al. (2019) and the simulated partial Raman spectra for all the cation-anion pairs in the structure of potassic-magnesio-arfvedsonite given by Ivanov et al. (2018). Most Raman peaks exhibit one-mode behavior and shift toward lower wavenumbers for increasing Co in the amphibole.
Chlorine-Rich Amphiboles from the Grenville-Age Hudson Highlands of New York State
Authors: Gilland Alexandra J. , Hebert Laurel I. , Javier-Jimenez Diego R. , Masi Janey M. , Meyler Shannon R. , Schwartz Spencer G. , Verhaeg Emily A. , Hughes John M. , Lincoln Emily S. , O'Brien Griffin P. , Powers Sarah K. , Schireman Raymond G. , Lupulescu Marian V. , Bailey David G. 
Published: January 2021

Abstract
Some Grenville-age rocks exposed in the uplifted region of the Hudson Highlands of southern New York are amphibole-dominant igneous rocks. The amphibole-rich rocks, which are locally pegmatitic in nature, are associated with magnetite ore and coarse-grained syenite; the ore was discovered and mined from the middle of the 18th century to the end of the 19th century. The amphiboles have attracted the attention of many researchers for nearly two centuries. Chemical analyses demonstrate that they are pargasite or hastingsite in composition and are particularly rich in Cl and K. High-precision crystal structure analyses of 11 Cl-rich amphiboles from the Hudson Highlands (0.0134 &lt;R1 &lt; 0.0169), including separation of M(1)Fe and M(1)Mg, allow corroboration of, and greatly extends the range of, previous models of Cl incorporation in amphiboles that were derived from a small number of samples. In addition to crystal structures and major-element analyses, trace-element data and Raman spectra are provided.
The Influence of Brand Image and Restaurant Attributes towards Customer Satisfaction at Pekkio Restaurant
Authors: Marcella Oei Natalia 
Published: January 2021

In this globalization era, food service industry as restaurant that provide the basic of human needs has been well developed. The development of food industry has given a huge contribution to the social and environment aspects (Franceschelli et al, 2018). Pekkio restaurant is one of the restaurants in Surabaya that sell Singapore chinese cuisine in Pakuwon Mall Surabaya. In order to survive in this industry, Pekkio restaurant continuously develop their performance to increase the customer satisfaction. With the purpose to find out the factors that influence customer satisfaction, this research aims to discover whether brand image, food quality, service quality, and atmospherics have significant influence towards customer satisfaction of Pekkio restaurant.
Therefore, researcher conducted an online survey that are distributed to the samples using 5-point Likert-scale. The population is unknown thus, the researcher use special method from Roa (2016) and the sample become 97. Moreover, the obtained data will be analysed using Multiple Linear Regression. The result shows that food quality and service quality have significant influence towards customer satisfaction of Pekkio restaurant. However, brand image and atmospherics don’t significantly influence customer satisfaction at Pekkio restaurant . Albeit, there are positive relationship of brand image and atmospherics towards customer satisfaction of Pekkio restaurant.
Keywords: Brand Image, Food Quality, Service Quality, Atmospherics, and Customer Satisfaction
The THE EFFECT OF SOCIAL MEDIA MARKETING AND ONLINE TRAVEL AGENTS TOWARDS THE BOOKING INTENTION OF HOTEL IN SURABAYA
Authors: Ramaputra Reza 
Published: January 2021

Hotel occupancy rate in Surabaya experienced a declining since 2017 with the average room occupancy rate was 54% For hotel to be able to make a profit, occupancy rate must be at least 60%. As a result of this declining in occupancy, hotels in Surabaya begin to rely on e-commerce platforms as their marketing strategy to overcome this occupancy issues. Strategy that commonly used is by maximize the use of social media marketing and online travel agents. This research aims to discover whether social media marketing and Online travel agents have significant effects to the booking intention of hotel in Surabaya.
This research sample uses the domestic people whoever use social media and online travel agents as a source to searching hotel information and booked a hotel room in Surabaya within a period of January 2019 to October 2019. Data research is collected by using a likert scale questionnaire that is distributed to 104 respondents. Then it proceeded by multiple linear regression similarity model with SPSS. The result shows that social media marketing has positive and significant effect towards the booking intention of hotel in Surabaya and online travel agents also has positive and significant effect towards the booking intention of hotel in Surabaya.
PENGGUNAAN MEDIA BERBASIS TEKNOLOGI DALAM PEMBELAJARAN PENDIDIKAN AGAMA ISLAM DI SEKOLAH MENENGAH PERTAMA NEGERI
Authors: Andria Rosa  , Mahyudin Ritonga  , Wedy Nasrul  
Published: January 2021

Kajian permasalahan pada penelitian ini mengenai problematika yang dihadapi guru dalam penggunaan media pembelajaran. Tujuan penelitian ialah untuk mendeskripsikan kemampuan guru dalalm menggunakan media berbasis teknologi, media apa yang dipakai guru dalam proses belajar mengajar, dan problematika apa yang dihadapi guru dalam menggunakan media pembelajaran berbasis teknologi. Penelitian ini adalah penelitian lapangan (field research) yang menggunakan metode deskriptif kualitatif, yakni dengan menggambarkan objek penelitian sebagaimana adanya. Subjek penelitian ini yaitu Kepala Sekolah, Guru PAI dan Siswa. Metode pengumpulan data menggunakan observasi, wawancara dan studi dokumentasi. Dalam memeriksa keabsahan data yang penulis dapat di lapangan, maka penulis menggunakan teknik triangulasi yakni; triangulasi sumber, triangulasi teknik dan triangulasi waktu. Temuan penelitian menunjukkan bahwa: pertama, Guru mampu mengiringi perkembangan zaman dalam menggunakan media berbasis teknologi pada pembelajaran Pendidikan Agama Islam, hanya saja mereka tidak menerapkan kemampuan yang mereka miliki pada proses belajar mengajar. Kedua, Pada perangkat pembelajaran, guru Pendidikan Agama Islam sudah menggunakan media pembelajaran berbasis teknologi meskipun belum bervariasi, namun pada kenyataan di lapangan mereka hanya mengajar secara konvensional. Ketiga, Problematika yang dihadapi guru tidak selalu berpengaruh besar terhadap hasil belajar siswa. Guru dapat melaksanakan kewajibannya dengan baik meski tidak sepenuhnya di support dengan media pembelajaran.
Neutron Star Mergers in Active Galactic Nucleus Accretion Disks: Cocoon and Ejecta Shock Breakouts
Authors: Zhu Jin-Ping , Zhang Bing , Yu Yun-Wei , Gao He 
Published: January 2021

Abstract
Neutron star mergers are believed to occur in accretion disks around supermassive black holes. Here we show that a putative jet launched from the merger of a binary neutron star (BNS) or a neutron star–black hole (NSBH) merger occurring at the migration trap in an active galactic nucleus (AGN) disk would be choked. The jet energy is deposited within the disk materials to power a hot cocoon. The cocoon is energetic enough to break out from the AGN disk and produce a bright X-ray shock breakout transient peaking at ∼0.15 days after the merger. The peak luminosity is estimated as

, which can be discovered by the Einstein Probe from

. Later on, the nonrelativistic ejecta launched from the merger would break out the disk, powering an X-ray/UV flare peaking at ∼0.5 days after the merger. This second shock breakout signal may be detected by UV transient searches. The cocoon cooling emission and kilonova emission are outshone by the disk emission and are difficult to detect. Future joint observations of gravitational waves from BNS/NSBH mergers and associated two shock breakout signatures can provide strong support for the compact binary coalescence formation channel in AGN disks.
Lithium Battery Cell Level Fusing with Aluminum Heavy Wire Bonds
Authors: Mehrotra Utkarsh , Brazzle Arthur , McKeown Michael , Hopkins Douglas C. 
Published: January 2021

Abstract
Aluminum heavy wire bonds interconnects are a potential alternative to laser or resistance welded bus bars due to its ease of manufacturability, long term reliability and low cost for battery banks. They can also be utilized as a fault protection solution in case of a surge current, dead short, etc, and to isolate a bad cell preventing synchronous failure. Typically, the current-carrying capability of a wire is estimated using standard data generated by testing in free air. However, a deviation in the capacity limits can occur due to the proximity of interconnect to larger thermal masses and different heat extraction techniques found in present day lithium battery packs; e.g., fluid channel cooling, encapsulated wires, etc. The cylindrical cell cathode, anode, and the busbar material constitute a large thermal mass to increase the fusing current in wire bonds above conventional levels. To better predict and design the interconnects advanced and system-specific models should be developed. This paper presents a new mathematical approach which includes the effect of convective cooling inside the battery pack to do an early step estimation of the current handling capacity and fusing time of different diameter wires. The paper also presents a finite element model that includes the impact of boundary conditions, wire length and wire diameter on steady-state current handling capacity of 99.99 % Al wire. Both steady-state and transient simulations were performed to estimate fusing times at different time rated conditions. The paper concludes by providing new curve-fit patterns to give future battery pack designers further insight aiding new designs.
Methodology to Quantify Impact of Package Delamination on Performance of High-Side Smart Power Switch Design
Authors: Chu Min , Chen Jie , Rahman Abidur , Murugan Rajen 
Published: January 2021

AbstractGenerally, IC packages with exposed pads have excellent thermal and electrical performance – assuming high fidelity and integrity of die attach material. However, reliability challenges associated with die attach impacts electrical performance of vertical power FETs for high-side power switches. As such, it is critical to quantify the impact of these challenges on high-side power switches operation, so that their protection and diagnostic feature circuitries can be properly designed for mission critical applications. In this paper we present on a package and PCB co-modeling methodology that was developed to assess impact of die attach integrity on performance of high-side power switch designs. We explain how electrical co-optimization of the system (viz. FET-Package-PCB) interactions, was achieved through a coupled circuit-to-electromagnetic modeling, simulation, and analysis methodology. Silicon laboratory measurements data that validate the modeling methodology will be presented.
Enhancement of Board Level Reliability on Automotive DRAM Package by Optimized Thermal & Mechanical Properties
Authors: Lee Jong-Gi , Bae Jin-Soo , Yoon Yeo-Hoon , Lee Jun-Ho , Cho Kang-Young 
Published: January 2021

Abstract
As increased in demand for using memory devices in automotive applications, board level reliability (BLR) has been the one of the critical issue for using FBGA type packages in automotive. The required specification of BLR is listed in various standards (AEC-Q100, Q104 etc) and it is varied by automotive application customers. Most of customers are targeting grade from 1 to 3, however, requirement to memory package is grade 1 (−40°C~125°C). Currently low power (LP) memory device is widely adopted in automotive applications due to its wide bandwidth and high density capability. From package reliability point of view, it is challenge to satisfy the required BLR for target package by 1) dimension optimization, 2) selection of material, 3) mount condition, and 4) work around method. In this paper, the best combination to achieve the highest BLR life time was investigated compared with current mobile application LP4 package. Large pad size with large ball, high content of Ag in solder ball and Ni/Au pad finish were the best combination to result in the longest life time. Various density of LP4 package BLR were also estimated by mechanical simulation based from actual thermal cycling test on the highest Si volume LP4 package.
Packaging Issues and Solutions for Ultra-Low Power, High Efficiency GaN micro-LEDs for a Battery Free, Sub-mm2, Tetherless, Smart IoT System
Authors: Libsch F.R. , Bedell S.W. , Webb B.C. , Paidimarri A. 
Published: January 2021

Abstract
This paper discusses some design and implementation issues related to GaN micro-LED (μLED) incorporated into the heterogeneous packaging of IBM’s smart and secure sensor platform. For cost effective μLEDs, the sapphire substrate needs to be singulated reliably and with minimum kerf perimeter, be ultra-clean and smooth to allow back side emission without scattering, and high yielding front side flip chip bonding with 20μm C4s on 40μm pitch. The GaN μLEDs are design for low voltage/low power operation with an emission area of 20μm × 20μm with critical current density of ~10nA/μm2. Power and downlink data is delivered to the system via optical energy harvesting by on-silicon carrier photovoltaics and communication photodiode, respectively. Optical amplitude modulated uplink communication by heterogeneous packaging of the GaN μLED with a 14nm CMOS smart chip will be detailed and demonstrated in presentation.
Do catastrophic costs impact treatment outcomes in people with rifampicin-resistant tuberculosis in the Republic of Moldova?
Authors: Plesca Valeriu , Ciobanu Ana , Sereda Yuliia , Dadu Andrei 
Published: January 2021

The Republic of Moldova is among the 30 Rifampicin-Resistant and/or Multidrug-Resistant (RR/MDR) Tuberculosis (TB) high burden countries in the world. Despite free TB diagnostics and treatment, TB patients face substantial economic losses and this may impact overall treatment outcomes. We assessed if there is an association between TB-related catastrophic costs and TB treatment outcomes. We conducted a cohort study using data from patient records and a survey that quantified catastrophic costs among RR/MDR-TB affected households in the Republic of Moldova in 2016. We included adult patients (age ≥18 years) with RR/MDR-TB who had been in inpatient (intensive phase) or outpatient (continuous phase) treatment for at least 2 months. Unfavourable treatment outcome, such as failure, death or lost to follow-up, was the primary outcome variable. The definition of catastrophic TB-related costs followed the World Health Organisation (WHO) guidelines: costs due to TB ≥20% of annual household income. Log-binomial regression was used to assess association between the outcome and catastrophic TB-related costs adjusting for other socio-demographic, behavioural and clinical covariates. In total 287 RR/MDR-TB patients (78% males, mean age 42 years) were included. Of them, 30% experienced catastrophic TB-related costs. Overall, one in five patients (21%) had unfavourable treatment outcome, such as treatment failure (5%), death (8%) or lost to follow-up (8%). The experience of catastrophic TB-related costs was not associated with unfavourable treatment outcome [adjusted relative risk (aRR)=0.88, 95% CI: 0.50–1.50]. Major factors independently associated with unfavourable TB treatment outcomes were poverty (aRR=2.07; 95% CI: 1.06-4.07), urban residence (aRR=1.99; 95% CI: 1.12-3.52) and positive HIV (Human Immunodeficiency Virus) status (aRR=2.61; 95% CI: 1.31-4.89). As a result, we failed to find an association between catastrophic costs and treatment outcomes of RR/MDR-TB patients in the Republic of Moldova. However, we found that patients from poor households and urban areas were twice more likely to achieve unfavourable TB treatment outcomes disregarding whether they experienced catastrophic costs or not. Also, TB/HIV patients and urban residents were identified as the most vulnerable groups with higher risk of unfavourable treatment outcome and TB-related costs.
Factors associated with unfavourable treatment outcomes among people with rifampicin-resistant tuberculosis in Armenia, 2014-2017
Authors: Khachatryan Lilit , Grigoryan Ruzanna , Dadu Andrei , Kumar Ajay M.V. , Akopyan Kristina , Dumchev Kostyantyn , Harutyunyan Hasmik , Matteelli Alberto 
Published: January 2021

Rifampicin-Resistant/Multidrug-Resistant Tuberculosis (RR/MDR-TB) is recognized as a major public health concern globally. In Armenia, the proportion of RR/MDR-TB is increasing among all people affected with TB. We conducted a nationwide cohort study involving analysis of programmatic data to investigate the rates of and factors associated with unfavourable treatment outcomes among patients with RR/MDR-TB registered by the national TB programme from 2014 to 2017 in Armenia. We used Cox regression to identify factors associated with the outcome. Among 451 RR/MDR-TB patients, 80% were men and median age was 46 years. Of them, 53 (11.8%) had Extensively Drug-Resistant Tuberculosis (XDR-TB) and 132 (29.3%) had pre-XDR-TB. Almost half (224, 49.7%) of the patients had unfavourable treatment outcome, which included 26.8% Loss To Follow-Up (LTFU), 13.3% failures and 9.5% deaths. In multivariable analysis, people with pre-XDR-TB [adjusted Hazard Ratio [aHR] 3.13, 95% confidence intervals [CI] 2.16-4.55] and XDR-TB (aHR 4.08, 95% CI 2.45-6.79) had a higher risk of unfavourable outcomes. Patients receiving home-based treatment (71/451, 15.7%) and treatment with new drugs (172/451, 38.1%) had significantly lower risk (aHR 0.45, 95% CI 0.28-0.72 and aHR 0.26, 95% CI 0.18-0.39) of unfavourable treatment outcome. The proportion of MDR-TB patients reaching favourable treatment outcome in Armenia was substantially lower than the recommended level (75%). The most common treatment outcome was LTFU indicating the need for further assessment of underlying determinants. Home-based treatment looks promising and future studies are required to see if expanding it to all RR/MDR-TB patients is feasible and cost-effective.