bluuebunny/crossref_metadata_2025_split huggingface dataset:
Deep Periocular Recognition Method via Multi-Angle Data Augmentation
Authors: Liu Bo , Lei Songze , Li Yonggang , Shan Aokui , Dong Baihua 
Published: April 2021

Abstract
Periocular recognition technology is a biometric recognition technology widely used in identity verification. Because of its high precision, high ease of use and high security, Periocular recognition has a broad application prospect and scientific research value. In order to solve the problem of angular rotation of eyes in practical application, this paper proposes a deep learning periocular recognition method based on multi-angle data augmentation. The method is to rotate the original data set from small angle to large angle, so that the amount of data is expanded to 7 times of the original, and the diversity of data is increased at the same time. The InceptionV3 network and MobileNetV2 lightweight network are used for experimental verification respectively, and good results are obtained from multi-angle tests, indicating that the proposed method can improve the generalization ability of the model and has good robustness.
Performance Analysis of Heat-Based Smart Phone Charger
Authors: Mgbachi C. A. 
Published: April 2021

Abstract
Smart phone services have become all encompassing in these modern life activities. These phones operate with batteries that provide the necessary electrical power. The batteries’ stored energy often got used up; and the conventional electrical power charging sources like public power supply, generating sets, solar devices among others are not only unreliable but most times totally unavailable in some villages and camp settlements. There was then the need to produce simple, inexpensive and easily accessible battery chargers for the phones. This paper therefore studies and analyzes the performance of a locally-made, off-grid and renewable energy power phone charger. The device output voltage, current and hence power has been tested at varying degrees of temperatures. Finally it was tested with different heat sources like, charcoals, Gas- burner, kerosene stove, wood stove, and Camp and Barbecue fires for heat source efficiencies. The results prove that charcoals and gas-burner heat sources are the most efficient heat source for operating the heat-smart- phone charger.
Research on User Dynamic Selection Network Technology
Authors: Jian Wang , Yubian Wang 
Published: April 2021

Abstract
As the world has entered the Internet era, more and more network operators have also developed one after another, which has been widely used in communities, schools, banks and other regions. Due to the uneven distribution of network providers in different regions, a certain network line is not running smoothly. In order to solve this problem, this paper puts forward a method that users can dynamically choose networks according to their preferences, and the problem can be solved by static routing and network address translation. At first, set the internal IP addresses of different users and the external IP addresses provided by internet providers on the ports on both sides of the user LAN router. During network address translation, a fixed one-to-one relationship established by the internal IP and the external IP is loaded into the routing table of the user LAN as a static route. Finally, users can actively and dynamically set the internal IP of the user LAN router in the router list in the user computer and realize the method that the user dynamically selects different interconnection networks.
Application Research of Decimal Network Technology
Authors: Liu Zhang , Li Shuyang 
Published: April 2021

Abstract
The current Internet technology is IPv4 Protocol suite, and it is completely developed by the U.S. the IPv4 protocol address space is 232, and it has some shortcoming with the development of the Internet, and IPv6 Protocol suite proposed to expand the address of IPv4, but the two protocols are not compatible, which brings certain difficulties to the final application. The decimal network standard working group of Ministry of Industry Information Technology of China has researched about the future network for more than twenty years since 2001 and developed a whole set of decimal network system, and completed the future network IPV9 series. This paper introduces the basic technology of decimal network and its related applications. The practical application shows that the decimal network has realized the characteristics of “autonomous, controllable, high-speed and compatibility”.
Gamma radiation effects on quartz Al and Ti center electron spin resonance signal intensity: Implications for quartz provenance discrimination
Authors: Wei Chuanyi , Yin Gongming , Liu Chunru , dit Jacques Dembele N’dji , Yu Lupeng , Jiang Huajun , Li Yawei , Guo Rujun , Cheng Li , Li Wenpeng 
Published: April 2021

Abstract
Quartz is one of the most common rock-forming minerals and crystallizes over a wide range of temperature and pressure conditions. This diversity of quartz crystallization environments is reflected by trace-element compositional variations, which can be used to distinguish between different source sediments. Trace elements that are incorporated into the quartz lattice form corresponding paramagnetic centers (impurity centers, such as Al and Ti centers), which can be detected using the electron spin resonance (ESR) method. However, whether the quartz impurity center ESR signal intensity (quartz ESR-SI) can be used for quartz sediment provenance tracing remains uncertain. In the present study, five present-day (modern) fluvial sediments from the Songhua, Yellow, Yangtze, Huai, and Pearl rivers in China and eight ancient fluvial sand lenses from the Yichang Gravel Layer (YGL) located in the middle Yangtze River were sampled for major- and trace-element determinations by ICP-OES and ICP-MS for the purpose of provenance discrimination. A total of 1404 ESR spectra were also collected to evaluate the effect of γ-ray dose (varying from 50 to 50 000 Gy) on quartz ESR-SI to establish the relationship between quartz element contents and quartz ESR-SIs and thereby to assess the potential utility of quartz ESR-SI for sediment provenance analysis. Results indicate that: (1) quartz collected from the different studied locations can be distinguished by element contents; (2) the quartz Al center ESR-SI increases with increasing γ-ray dose from 50 to 50 000 Gy; (3) the quartz Ti center ESR-SI increases within a γ-ray dose of 10 000 Gy and decreases beyond 10 000 Gy; (4) quartz Al and Ti center ESR-SIs are closely related to the contents of Al and Ti in quartz; and (5) a plot of quartz Ti center ESR-SI vs. Al center ESR-SI using data for a γ-ray dose range of 4000–7000 Gy is the best indicator of fluvial sediment provenance using the ESR method.
Effect of sulfur on siderophile element partitioning between olivine and a primary melt from the martian mantle
Authors: Usui Tomohiro , Righter Kevin , Shearer Charles K. , Jones John H. 
Published: April 2021

AbstractNi and Co variations in primary martian magmas exhibit anomalous incompatible behavior, which has remained an unexplained conundrum. Because martian magmas are S-rich, and some trace metals are reported to have enhanced solubility in S-bearing magmas, we have carried out a series of experiments to evaluate the effect of high-S melts on the olivine/melt partitioning of Ni, Co, Mn, V, and Cr. Near-liquidus experiments on a synthetic primary martian mantle melt (Yamato-980459 [Y98]) were completed in a piston-cylinder apparatus at 0.75 GPa. Previous studies in S-free systems illustrate that the partition coefficients for these elements are dependent chiefly on DMg(Ol/melt) (the partition coefficient defined as wt% Mg in olivine/wt% Mg in melt, a proxy for temperature), and were used to calibrate a predictive expression that includes the effects of temperature [i.e., DMg(Ol/melt)], melt composition, and oxygen fugacity. These predictive expressions are then used to isolate any effect in DM olivine/melt due to dissolved sulfur. The results show that S might have a small effect for Co, but not enough to change Co partitioning from compatible to incompatible in our experiments. The addition of a sulfur term to the DCo predictive expressions shows that nearly 8000 ppm of sulfur would be required in the melt (at liquidus temperature of Y98) for DCo to become &lt;1. These S contents are two times higher than those of a sulfide-saturated melt at the P-T conditions of a martian mantle source region. Therefore, the anomalous incompatible behavior observed in these primary magma suites must be due to another mechanism. High temperature, oxygen fugacity, and diffusion are not viable mechanisms, but magma mixing, assimilation, or kinetic crystallization effects remain possibilities.
The absorption indicatrix as an empirical model to describe anisotropy in X-ray absorption spectra of pyroxenes
Authors: Steven Cody J. , Dyar M. Darby , McCanta Molly , Newville Matthew , Lanzirotti Antonio 
Published: April 2021

AbstractAnisotropic absorption in crystals is routinely observed in many spectroscopic methods and is recognized in visible light optics as pleochroism in crystalline materials. As with other spectrosco-pies, anisotropy in Fe K-edge X-ray absorption spectroscopy (XAS) can serve both as an indicator of the general structural arrangement and as a conundrum in quantifying the proportions of absorbers in crystals. In materials containing multiple absorbers, observed anisotropies can typically be represented by a linear relationship between measured spectroscopic peak intensities and relative absorber concentrations. In this study, oriented XAS analysis of pyroxenes demonstrates that the macroscopic theory that describes visible light absorption anisotropy of triaxially anisotropic materials can also be applied to X-ray absorption in pyroxenes, as long as the orientation and magnitude of the characteristic absorption vectors are known for each energy. Oriented single-crystal XAS analysis of pyroxenes also shows that the measured magnitude of characteristic absorption axes at a given orientation is energy-dependent and cannot be reproduced by linear combination of intermediate spectra. Although the macroscopic model describes a majority of the anisotropy, there is distinct discordance between the observed and interpolated spectra in the pre-edge between 7109 and 7115 eV, which is marked by spikes in RMSE/mean intensity ratio. Absorption indicatrices for samples analyzed in the visible and at X-ray wavelengths are modeled with a three-dimensional (3D) pedal surface, which functions as an empirical way of interpolating between the observed absorption data. This surface only requires a maximum of three coefficients, and results from the summation of 3D lemniscates. An absorption indicatrix model can be used to characterize anisotropic absorption in crystals and provides a way of comparing XAS spectra from randomly oriented crystals, such as those from polished sections, to a database of characterized crystals.
Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine
Authors: Shcherbakova T. O. , Gorobets V. F. 
Published: April 2021

Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine.
Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero.
Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering.
Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months.
A new multiple purposes variety of industrial hemp ‘Artemida’ with a high oil content and fiber quality
Authors: Mishchenko S. V. , Kyrychenko H. I. , Laiko I. M. 
Published: April 2021

Purpose. Creation of industrial hemp variety of multiple purposes with the absence of cannabinoid compounds, high oil content in seeds and fiber quality.
Methods. Bree­ding (self-pollination, varietal-linear hybridization in the conditions of a vegetation house, selection), field, laboratory, instrumental-technological assessment of fiber quality, mathematical statistics.
Results. The ‘Artemida’ variety was created as a result of hybridization of the ‘Hlesiia’ variety with the self-pollinated line of the sixth generation of the ‘Zolotoniski 15’ variety and selection for stabilization of high productivity traits and improvement of quality trait of hemp production. The variety belongs to the medium-ripe group; the growing season is 94 days before the phase of technological maturity and 118 days before the phase of biological maturity. When grown for fiber, the variety had a higher fiber yield (2.56 t/ha), the yield of all fiber (30.4% and including long fiber 27.6%). When grown for fiber and seeds, the plant is significantly inferior in height, which is positive for harves­ting seeds with a combine harvester, has a significantly higher seed yield (1.29 t/ha), oil content (36.8%) and fiber yield (2.01 t/ha) in comparison with the standard of the varie­ty ‘Hliana’. The analysis of the correspondence between the empirical and theoretical distribution of such a trait as the oil content in the seeds of elite plants of the ‘Artemida’ variety indicates its high stability. A notable feature of the variety is the formation of friendly seedlings and intensive plant growth at the beginning of the growing season, which helps to reduce the weediness of crops.
Conclusions. The new variety of hemp ‘Artemida’ of multiple purposes belongs to the Central European ecological and geographical type, although created as a result of varietal-linear hybridization of different types with selection on the basis of productivity, is characte­rized by complete absence of cannabinoid compounds, high oil content and fiber quality. The variety is recommended for growing for fiber and seeds. Due to its high yield potential, it is competitive in the industrial hemp market.
Macro and microeconomic analysis of the impact of the covid-19 pandemic in Chile and the projections of the central bank's
Authors: Barra Novoa Rodrigo 
Published: April 2021

This article offers a first approximation of the impacts of the COVID-19 pandemic on the Chilean macro and microeconomic environment, using representative data from the latest formal surveys in the country. Here, the number of active firms plummeted in part due to the social crisis that began on October 18, 2019, and losses were felt in most industries due to the pandemic crisis that continues to generate job losses and low business profitability. These first results have implications for central bank policies and can predict medium and medium-term projections, especially for the country's economic and social growth.
Клинические основы синдрома гипертонического криза на уровне первичного звена
Authors: Vásquez Abanto J.E. , Vásquez Abanto A.E. , Arellano Vásquez S.B. 
Published: April 2021

Гипертонический криз представляет собой частое явление на уровне первичной медико-санитарной помощи. Одной из основных задач в диагностике и лечении гипертонического криза в экстренной медицине является дифференциация между гипертензивной ургентностью (неосложненным гипертоническим кризом) и неотложностью (осложненным гипертоническим кризом), основанная на наличии повреждения органа-мишени во втором случае. Адекватная стратификация, профилактика и регрессия повреждения, вызванного гипертоническим кризом, могут предотвратить появление новых долгосрочных событий. Состояния гипертензивной ургентности (неосложненного гипертонического криза) обычно не связаны с непосредственным риском для жизни, поэтому лечение может быть начато и даже завершено в амбулаторных условиях. Состояния гипертензивной неотложности (осложненного гипертонического криза) — это очень серьезные клинические ситуации, которые требуют госпитализации. При наличии тяжелой гипертонии у пациента, бессимптомной или с неспецифическими симптомами, следует предпринять осторожный терапевтический подход. При лечении состояний гипертензивной ургентности усилия медиков направлены как на снижение показателей артериального давления (как минимум 20 % от базовых показателей), так и на избегание внезапного и/или чрезмерного его снижения (необходимо сохранять зону пенумбры). Следовательно, быстродействующие препараты не следует использовать из-за риска возникновения ишемических событий. При состояниях гипертензивной неотложности выбор препарата должен быть индивидуальным, причем парентеральный путь его введения является наиболее распространенной формой. При отсутствии симптомов повреждения органов-мишеней большинство пациентов, вероятно, могут лечиться в амбулаторных условиях. Соблюдение четкой преемственности диагностико-терапевтических мероприятий на догоспитальном этапе и в стационаре является необходимым условием для реальной стабилизации данного состояния. Экстренные состояния, связанные с гипертоническим кризом, в Украине являются основными причинами обращения и/или вызова врача экстренной медицины (≈ 25–26 %). Гипертонический криз, первичное проявление или осложнение ранее диагностированной артериальной гипертензии, чаще всего может иметь место в виде резкого повышения артериального давления ≥ 180/120 мм рт.ст. (хотя клиника гипертонического криза иногда наблюдается и при меньших цифрах). Методы поиска литературы: база данных Scopus, Web of Science, MedLine, CyberLeninka, РИНЦ.
Гармонизация личности и здоровье человека в современном мире
Authors: Semydotska Zh.D. , Neffa M.Yu. 
Published: April 2021

В условиях углубления противоречий между технократическим и духовным развитием человечества все настойчивее заявляет о себе необходимость духовного оздоровления. На пути к духовному оздоровлению возникает необходимость переосмысления места и роли человека в мироздании. Врачевание духовности — валеологическая парадигма XXI века. Духовность тесно взаимодействует с так называемым физическим вакуумом, с одной стороны, и с физическими структурами личности — с другой. Признавая духовно-физическую структуру личности, официальная медицина стремится восстановить только физическое здоровье, пренебрегая его духовной константой. Научные доказательства существования единой энергосистемы мироздания уже появились в форме экспериментально обоснованной теории физического вакуума и торсионных полей. Если мы хотим адекватно понять фундаментальные основы здоровья, болезни и развития личности, непременно нужно учитывать духовный аспект бытия. Энергия мысли напрямую управляет здоровьем, стимулируя его, или, наоборот, вызывает болезнь. Мысли человека — основной носитель информации, в которой заключен энергетический потенциал. Объяснить энергетические процессы в организме законами классической физики не представляется возможным. Это область квантовой физики. Преобладание разума над материей — квантовая реальность. Некоторые положения квантовой физики постулирует квантовая биология. В частности, это касается корпускулярно-волнового дуализма элементарных биологических объектов и вероятности как категории, относящейся к квантовой сущности биологических объектов. Энергетические процессы составляют основу психической деятельности человека, а их законы описывают механизмы его мышления и сознания. Имеется взаимосвязь между энергетическими процессами и физиологией тела, взаимосвязь между веществом и энергией. Таким образом, сознание, энергия мысли управляют здоровьем, стимулируя его или, наоборот, вызывая болезнь. Духовный человек поднимается выше генетической судьбы. Эпигенетика изучает скрытые влияния на гены, оказываемые множеством источников, включая и мысли, и убеждения. Сила мысли меняет генетический код человека. Нужно хотеть перемен в своем мышлении и сознании. Мы своим сознанием влияем на процессы оздоровления. Сила мысли и слова играет большую роль в гармонизации личности и сохранении здоровья человека.
Tingkat Erosi pada Plot Model Arsitektur Pohon Attims (Eucalyptus deglupta), Corner (Arenga pinnata), dan Rauh (Arthocarpus teysmanii)
Authors: Naharuddin Naharuddin 
Published: April 2021

Tree architecture models and the composition of vegetation types affected surface runoff and erosion rates due to vegetation density and various other morphological and ecological characteristic components. This research purpose was to measure and compare the level of erosion in 3 tree architectural models. The research used the path plots method. The sample pathway was made by cut off contour lines. To measure the erosion rate that occured at the tree architecture model, erosion measuring plots were used in three tree architecture models, namely Attims (Eucalyptus deglupta), Corner (Arenga pinnata), and Rauh (Arthocarpus teysmanii). The results showed that the dominant tree architecture model was the Rauh, Attims, and Corner models. The erosion level which occurred in the three tree architectural models showed that the Attims Eucalyptus deglupta model and Corner Arenga pinnata models were more effective in controlling erosion by 233.55 g/ha/year and 293.10 g/ha/year with rainfall of 493.55 mm compared to Rauh Arthocarpus teysmanii type. The correlation analysis between rainfall and the erosion rate at the three tree architecture models were 80% (very strong) for Attims model, 89% (very strong) for Corner model and 90% (very strong) for Rauh model. To control the erosion the Attims and Corner models are highly recommended as alternatives for rehabilitating the critical land.
On degree of approximation of Fourier series of functions in Besov space using Nörlund mean
Authors: Padhy Birupakhya Prasad , Mishra Anwesha , Misra U. K. 
Published: April 2021

In the present article, we have established a result on degree of approximation of function in the Besov space by (N; rn)- mean of Trigonometric Fourier series