bluuebunny/crossref_metadata_2025 huggingface dataset:
Post-disaster Tribe Relocated Reconstruction and Sustainable Development of Ulaljuc Village
Authors: Chang Hsiao-Ming , Chou Chin-Lung , Wu Cheng-Lung
Published: December 2020

Ulaljuc Village is an indigenous tribe that was relocated and reconstructed due to a disaster, and mainly developed by the coffee industry for post-disaster industrial recovery. This study chose Ulaljuc Village as the research target, and collected data using various research methods, such as participant observation and in-depth interviews. The analysis results show that: (1) with assistance from government public sectors and non-profit organizations, and respect for the planning of indigenous peoples, the tribe was able to implement relocation reconstruction; (2) the development of the coffee industry enabled the tribesmen to gain economic profits and maintain the coffee plantation to effectively support the livelihood of tribesmen. Hopefully, the case in this study can serve as reference for the future industrial development of tribes or communities implementing post-disaster reconstruction.
Analysis of the difference between the test and production in Well Z202-H1
Authors: Lei Zhian , Mao Zhenglin , Qi Lin , Zheng Jian , Zhang Haijie , Xie Wei
Published: December 2020

In recent years, shale gas in the Upper Ordovician Wufeng Formation and lower Silurian Longmaxi Formation is gradually developing into deep strata in Sichuan Basin. Well 202-H1 is a evaluation well deployed to evaluate the productivity of horizontal Wells in longmaxi Formation and Wufeng Formation in The West Chongqing block. The well type is horizontal well. The main reasons for the poor production effect of Well Z202-H1 are as follows: Reservoir pores are not developed; continuous thickness of thin reservoir; insufficient fracturing treatment; low flowback rate, large water production and wellbore fluid accumulation. This article not only obtained the reasons for the difference between the test and production of well Z202-H1, but also provided a new research idea for the test and production tracking analysis of deep shale gas static in The Western Chongqing block.
Clinical Study on Pulmonary Hypertension Caused by Genetic Immunity and Environment
Authors: Wang Gu Xian , Qin Qing Ying , Zha Yan Jing , He Wen Yuan
Published: December 2020

Pulmonary hypertension is a chronic pulmonary vascular disease. In recent years, quite a number of studies suggest that the increase of pulmonary artery pressure is the result of multiple factors. A better understanding of the related factors is of great significance to the prevention, diagnosis, treatment and prognosis of pulmonary hypertension. Based on this, this paper studies the genetic immunity and environmental induced pulmonary hypertension. In this paper, 60 patients with pulmonary hypertension in our hospital from January 2020 to the first half of July 2020 were selected as the research objects. According to the pathogenic factors, the patients were divided into groups. Among them, pulmonary hypertension caused by genetic factors was group A, and pulmonary hypertension caused by environmental factors was group B. This study found that the incidence rate of family genetic history reached 6%, and the proportion of diseases caused by immune factors accounted for 2%. Because of the high altitude hypoxia environment, about 5% accounted for 5%. Smoking is the main factor leading to the morbidity of pulmonary hypertension, accounting for up to 70%. The results of this study provide theoretical basis for the treatment of pulmonary hypertension caused by genetic immunity and environment.
Research on the Dynamic Mechanism of National Pharmaceutical Industry Chain
Authors: Xiao Liping , Huang Yafang
Published: December 2020

This paper relies on the “China Health and Family Planning Statistical Yearbook” published by the National Bureau of Statistics. Analyzing the current development status of ethnic medicine, the driving force of the national medicine industry chain is the national medicine industry, especially the development of grassroots national medical institutions, and the core problem of solving the grassroots development is the construction of national physicians and the accelerated cultivation of national medical talents. Providing sufficient human resources to grassroots medical institutions is an important guarantee for the development of national medicine industry. Finally, on the basis of research, the development model of the national industrial chain of ethnic medicine was established.
Multihead Self Attention Hand Pose Estimation
Authors: Zhang Zhiqin , Zhang Bo , Li Fen , Kong Dehua
Published: December 2020

In This paper, we propose a hand pose estimation neural networks architecture named MSAHP which can improve PCK (percentage correct keypoints) greatly by fusing self-attention module in CNN (Convolutional Neural Networks). The proposed network is based on a ResNet (Residual Neural Network) backbone and concatenate discriminative features through multiple different scale feature maps, then multiple head self-attention module was used to focus on the salient feature map area. In recent years, self-attention mechanism was applicated widely in NLP and speech recognition, which can improve greatly key metrics. But in compute vision especially for hand pose estimation, we did not find the application. Experiments on hand pose estimation dataset demonstrate the improved PCK of our MSAHP than the existing state-of-the-art hand pose estimation methods. Specifically, the proposed method can achieve 93.68% PCK score on our mixed test dataset.
Two-pion Bose-Einstein Correlations data analysis for the CMS Pb-Pb nucleon collisions
Authors: Chen Zeying , Liang Guanming , Peng Xiaoyue , Zhao Aiting
Published: December 2020

From the data collected in the Compact Muon Solenoid (CMS) Pb-Pb nucleon collisions experiment, the two-pion Bose-Einstein correlation functions for different combination of same charges and different charges are plotted. The influence of repulsion and attraction through Coulomb interaction between charged pions is reduced after applying the standard Gamow-factor Coulomb correction on Gaussian function C(Qinv). According to the Yano-koonin-Podgoretski parametrization, the five-dimensional components of the invariant momentum difference between two pions are calculated. One of the five components, the momentum difference in the transverse plane QT, can be further divided into Qside and Qout. Q0, Qlong, Qside and Qout were then separately plotted and fitted with the Gaussian function. The sizes of pion source or the effective interferometric source can be extracted from the fitting finally.
Experimental study on the influencing factors of SBBR nitrosation controlled by sodium chlorate inhibitor
Authors: Li Yafeng , Gao Chong , Wu Jianbo
Published: December 2020

The research takes low C/N ratio sewage as the research object, and quickly realizes the accumulation of nitrite nitrogen by adding inhibitors into the SBBR reactor, and realizes the nitrogen removal by anaerobic ammonia oxidation in the reactor. Determining the optimal operating parameters is of farreaching significance for the treatment of wastewater with high ammonia nitrogen and low C/N and achieving economical and efficient nitrogen removal. Control the ammonia oxidation reaction, keep the nitrification process in the nitrosation stage, and realize the rapid accumulation of NO2--N is the problem that the reactor needs to solve. This experiment uses a combination of batch test and periodic test to conduct experimental research on various influencing factors in the partial nitrosation process: temperature, pH, DO and find the best operating conditions to achieve high-efficiency accumulation of NO2--N and optimize the reaction conditions.
Fume Suppressant of Hot Mix Asphalt Mixture: A Review
Authors: Zhou Xinyi , Liu Jiayao , Xu Shibing
Published: December 2020

Asphalt is a black, thermoplastic, hydrocarbon material extracted from crude oil and widely used in road construction all over the world. In order to meet the requirements of construction technology, asphalt always needs to be heated to flow state in the process of mixing and paving, during which a large amount of asphalt fume is released. Asphalt fume is a complex mixtures of inorganic compound gases, volatile organic compounds and particulate matter, which poses a serious threat to the natural environment and the health of practitioners. In order to solve this problem, researchers have developed different types of fume-suppressant. In this literature review, the properties, mechanisms and effects of all kinds of commonly used fumesuppressants were discussed in detail. Finally, the problems existing in the development of asphalt fumesuppressant and corresponding improvement considerations were pointed out.
The Heart failure treatment, All at once!
Authors: Shen Jiajun
Published: December 2020

Heart failure (HF) shows great public health concerns and it is important to cure the disease. For now nearly 20 million people are influenced and the number of the effected people is still arising. HF is a complicated disease which can be induced from lots of reasons, including disruption of myocardial function, obesity and diabetes. According to the clinical guidance, the types of HF are different due to different standards, which means the treatments are also different as well. Here we focused on the mainly treatment of HF like drug treatment and non-drug treatment, listing the key performance of each therapy. At last, we summarized the whole picture of the treatment of HF and gave several directions of the future development of treatments on HF.
Study on the Pathogenesis of Poststroke Depression
Authors: Sui Xinyi , Fan Yutong , An Ziqi , Liu Shiyao , Xiao Wanru , Wang Liyun
Published: December 2020

The main pathogenesis of post-stroke depression (PSD) can be divided into five aspects, that is the neuroanatomical mechanism, neurotransmitter mechanism, neuroendocrine mechanism, inflammatory factor mechanism and the target gene mechanism of depression-related possible effects regulated by miR30a-5p. Post-stroke depression acts on stroke patients through the above five mechanisms, bringing pain to patients and their families.In order to better solve such problems, it is necessary to clarify its pathogenesis in detail. This article mainly reviews the research content, clinical treatment and prospects of the pathogenesis of post-stroke depression.
Factors affecting the proliferation of cardiomyocyte
Authors: Cao Xixian
Published: December 2020

Heart is one of the most significant organs in mammalian animals, it functions as a pump to make the blood flow from heart to the body tissue and turn back to heart, which can provide the oxygen and other nutrients with the body tissue and carry the waste from the body 86tissue. There is an increase found in the incidence of heart disease and the case fatality rate of heart disease all over the world, this is because the heart disease leads to the greater amounts of cardiomyocyte dead and the capability of cardiomyocyte proliferation is weaker. To treat the heart disease and recover the capability of cardiomyocyte proliferation, this article summaries three factors that can affect the capability of cardiomyocyte proliferation, which may help with the treatment of heart disease in the future.
Gene Expression Profile of RNA N1-methyladenosine methyltransferases
Authors: Rao Mingzhu
Published: December 2020

N1-methyladenosine (m1A) is a kind of common and abundant methylation modification in eukaryotic mRNA and long-chain non-coding RNA. Nucleoside methyltransferase (MTase) of m1A is a diverse protein family, which is characterized by the presence of methyltransferases like domains and conserved S-adenosylmethionine (SAM) binding domains formed by the central sevenstranded beta-sheet structure. However, comprehensive analysis of the gene expression profile of such enzymes has not been performed to classify them according to evolutionary criteria and to guide the functional prediction. Here, we conducted extensive searches of databases to collect all members of previously identified m1A RNA methyltransferases. And we report bioinformatics studies on gene expression profile based on evolutionary analysis, sequence alignment, expression in tissues and cells within the family of RNA methyltransferases. Our analysis showed that the base modification behavior mediated by m1A RNA methyltransferases evolved from invertebrate, and the active sites of m1A RNA methyltransferases were highly conserved during the evolution from invertebrates to human. And m1A RNA methyltransferases have low tissue and cell specificity.
Evaluation of Unit Canteen Suppliers Based on Entropy Method and Analytic Hierarchy Process
Authors: Fu Mian , Wang Dandan
Published: December 2020

With the selection of canteen suppliers as the research object, a canteen supplier evaluation indicator system with four primary indicators and 15 secondary indicators is established in this paper by analyzing the key factors influencing the selection of canteen supplier. At the same time, a case study of four food suppliers of a unit canteen in Hefei, Anhui Province is conducted by comprehensive use of analytic hierarchy process (AHP) and entropy weight method, and some relevant countermeasures and suggestions are proposed.
Land subsidence in Beijing from 2017-2018 revealed by Sentinel-1A TOPS time series interferometry
Authors: Ran Peilian , Li Shaoda , Dai Keren , Yang Xiaoxia
Published: December 2020

Beijing is one of the largest cities in China, which has suffered from land subsidence for a long time. According to the study from 2005 to 2017, the maximum subsidence rate of Beijing is more than 10 cm/year. This paper will use Sentinel-1A TOPS data for the first time to reveal the land subsidence of Beijing from 2017 to 2018 by using time series interferometry. SBAS-InSAR technology was used for time series analysis. The annual mean subsidence rate and time series subsidence of Beijing were obtained. The results show that the east of Chaoyang district and the northwest of Tongzhou district were the severe subsidence areas in Beijing, and the subsidence rate is more than 10 cm/year, which indicates that the subsidence area in Beijing is continuous in recent years, and corresponding measures should be taken by the government.
The Relationship among Emotional Leadership, Job Satisfaction and Organizational Commitment: Taking China’s Hotel Industry as an Example
Authors: Jin Yixing , Wu Peiying , Lin Cheng , Wang Yingda
Published: December 2020

This study investigated the impact of emotional leadership of leaders on organizational commitment of hotel employees, as well as the mediating role of job satisfaction. The results indicate that: (1) Emotional leadership and job satisfaction have positive effects on organizational commitment. (2) Emotional leadership has a positive effect on job satisfaction. (3) Job satisfaction plays a mediating role between emotional leadership and organizational commitment.
The Research on The Evolution of Asia-pacific Regional Economic Integration and Countermeasures
Authors: Chen Min
Published: December 2020

The Asia-pacific region is the area with vast development accompanied by subtle evolution worldwide under frequently changeable global economic circumstance. The development of regional trade agreements (RTAs) in this area is most complicated and comprehensive. The interactive influence of economic growth and trade liberalization, and of the combination and differentiation, has grandly contributed the development of RTAs in the process of regional integration in this area, which has formed the strong driving force of the regional economic integration. On the basis of characteristics of the evolution in the course of Asia-pacific regional economic integration, this paper has analyzed the driving mechanism of the integration evolution and future development direction, then put forward some corresponding countermeasures.
A Study on the Influence of Mobile Phone Addiction on Academic Burnout in Postgraduate Students with Mediating Effect of Sleep Quality
Authors: Cheng Yuzi , Zhang Zonghe
Published: December 2020

In order to understand the current situation of postgraduates’ sleep quality, mobile phone addiction and learning burnout, and at the same time explore the mechanism of the influence of mobile phone addiction and sleep quality on academic burnout. The study used the “Mobile Phone Addiction Index Scale”, “Pittsburgh Sleep Quality Index Scale”, and “Graduate Academic Burnout Scale”. A total of 673 graduate students were surveyed. There are significant differences in mobile phone addiction among graduate students in different genders, majors, grades and family economic conditions. The sleep quality of postgraduate students will be different due to different grade and family economic conditions. The academic burnout level of postgraduate students will be different due to different genders, majors, grades, family economics, and whether they have work experience. The sleep quality of graduate students plays a partly mediating effect between mobile phone addiction and academic burnout.
Comparison of remote sensing extraction methods for glacier firn line-considering Urumqi Glacier No.1 as the experimental area
Authors: Zhao Yanjun , Zhao Jun , Yue Xiaoying , Wang Yanqiang
Published: December 2020

In mid-latitude glaciers, the altitude of the snowline at the end of the ablating season can be used to indicate the equilibrium line, which can be used as an approximation for it. In this paper, Urumqi Glacier No.1 was selected as the experimental area while Landsat TM/ETM+/OLI images were used to analyze and compare the accuracy as well as applicability of the visual interpretation, Normalized Difference Snow Index, single-band threshold and albedo remote sensing inversion methods for the extraction of the firn lines. The results show that the visual interpretation and the albedo remote sensing inversion methods have strong adaptability, alonger with the high accuracy of the extracted firn line while it is followed by the Normalized Difference Snow Index and the single-band threshold methods. In the year with extremely negative mass balance, the altitude deviation of the firn line extracted by different methods is increased. Except for the years with extremely negative mass balance, the altitude of the firn line at the end of the ablating season has a good indication for the altitude of the balance line.
Revisiting the past − novel insight into intraspecific molecular diversity and phylogeny of widespread Echinogammarus berilloni
Authors: Hupało Kamil
Published: December 2020

Echinogammarus berilloni (Catta, 1878) is a widespread and euryecious species, inhabiting large parts of Southwestern Europe. Additionally, it is recognized as one of the non-native and invasive species, increasing its range to Central Europe. Even though it is widely used as a model organism in a variety of ecological and ecotoxicological studies, its intraspecific molecular diversity has been overlooked. In this study, the publicly available genetic data reveal high level of intraspecific diversity, supporting presence of up to four phylogenetically distinct genetic lineages. Furthermore, the results indicate that the taxon is not monophyletic. The importance of considering its intraspecific diversity is discussed, highlighting the potential implications for future studies as well as the need for further detailed taxonomic studies.
Dermatomyositis: what the oral healthcare provider must know
Authors: Patil Pavan Manohar , Patil Seema Pavan
Published: December 2020

Dermatomyositis (DM) is an autoimmune condition characterized by skin rashes and progressive muscle weakness. It is classified under the idiopathic inflammatory myopathies (IIM) and can affect children as well as adults. A heightened incidence of malignancy in adults with DM has laid greater focus on its early diagnosis, treatment, and monitoring. In recent years, a greater understanding of the pathogenesis of the disease, its diagnostic criteria and management has improved the quality of life in affected individuals. The orofacial region presents with many manifestations of the disorder, sometimes even the initial presenting signs. This review presents an update on the disease process, its pathogenesis, diagnostic criteria, orofacial manifestations, medical management and dental considerations for patients with DM. The updated knowledge about DM is crucial for oral health care providers to plan and execute oral health care in a coordinated manner.
Neohexostoma gymnosardaen. sp. (Monogenea, Hexostomatidae), a gill parasite ofGymnosarda unicolor(Valenciennes) (Teleostei, Scombridae) in the South China Sea
Authors: Zhu Pei-Wei , Li You-Zhi , Liu Lin , Ding Xue-Juan , Yuan Kai
Published: December 2020

Parasite biodiversity of fish in coral reefs of the South China Sea is still incompletely explored. We describe here a new species ofNeohexostoma(Monogenea: Hexostomatidae) from the gill filaments of the dogtooth tunaGymnosarda unicolor(Scombridae), collected off Yongshu Reef, South China Sea.Neohexostoma gymnosardaen. sp. is distinguished from its congeners by the following features: (i) haptor clearly marked from body proper by a strongly constricted peduncle, divided in its posterior margin into two symmetrical lobes, (ii) vagina armed with scattered small blunt spines, (iii) eggs tied by their long polar filaments, (vi) esophagus with several lateral diverticula, (v) intestinal ceca unfused and extending into the haptor. We present an analysis of the relationships of this monogenean based on partial 28S rDNA sequences. An identification key for species ofNeohexostomais provided. This is the first member of the genusNeohexostomaknown to parasitize a species ofGymnosarda.
Synthesis of Amidation Agents and Their Reactivity in Condensation Reactions
Authors: Sole Roberto , Agostinis Lodovico , Beghetto Valentina , Conca Silvia , Gatto Vanessa , Bardella Noemi , Morandini Andrea , Buranello Chiara
Published: December 2020

Nowadays, the development of new approaches which smartly bypass the use of harsh reaction conditions and hazardous chemicals covers a pivotal role. In this research paper the synthesis, characterization, and application of novel libraries of triazine bis-quaternary ammonium salts, employed as coupling agents to produce amides is reported. Full characterization of the novel compounds by 1H and 13C NMR, FT-IR spectroscopy, ESI-HRMS, and elemental analysis is provided. Furthermore, a comparison in terms of activity of the preformed triazine compounds versus in situ formulations has been evaluated for the formation of amides in the presence of phenylethylamine and different aliphatic or aromatic acids. A possible correlation between the chemical structure of the triazine and their reactivity for the formation of the triazine bis-quaternary ammonium salts is also reported. Moreover, best performing condensation agents have been further tested for the cross-linking of collagen powder as possible wet white tanning systems, for sustainable and environmentally friendly leather tanning.
Aortoiliac Occlusive Disease: When the Development of Arterial Collateral Network Takes Over
Authors: Georgakarakos Efstratios , Katsaros Ioannis , Fiska Aliki
Published: December 2020

This report describes the collateral pathways that restore arterial circulation in cases of aortoiliac occlusive disease and discusses the clinical and surgical importance of these systemic-systemic, visceral-systemic, and visceral-visceral anastomoses.
Measuring the scope of pro-Kremlin disinformation on Twitter
Authors: Golovchenko Yevgeniy
Published: December 2020

This article examines the scope of pro-Kremlin disinformation about Crimea. I deploy content analysis and a social network approach to analyze tweets related to the region. I find that pro-Kremlin disinformation partially penetrated the Twitter debates about Crimea. However, these disinformation narratives are accompanied by a much larger wave of information that disagrees with the disinformation and are less prevalent in relative terms. The impact of Russian state-controlled news outlets—which are frequent sources of pro-Kremlin disinformation—is concentrated in one, highly popular news outlet, RT. The few, popular Russian news media have to compete with many popular Western media outlets. As a result, the combined impact of Russian state-controlled outlets is relatively low when comparing to its Western alternatives.
Correlating electron trapping and structural defects in Al2O3 thin films deposited by plasma enhanced atomic layer deposition
Authors: Schilirò Emanuela , Fiorenza Patrick , Bongiorno Corrado , Spinella Corrado , Di Franco Salvatore , Greco Giuseppe , Lo Nigro Raffaella , Roccaforte Fabrizio
Published: December 2020

In this article, electron trapping in aluminum oxide (Al2O3) thin films grown by plasma enhanced atomic layer deposition on AlGaN/GaN heterostructures has been studied and a correlation with the presence of oxygen defects in the film has been provided. Capacitance–voltage measurements revealed the occurrence of a negative charge trapping effect upon bias stress, able to fill an amount of charge traps in the bulk Al2O3 in the order of 5 × 1012 cm−2. A structural analysis based on electron energy-loss spectroscopy demonstrated the presence of low-coordinated Al cations in the Al2O3 film, which is an indication of oxygen vacancies, and can explain the electrical behavior of the film. These charge trapping effects were used for achieving thermally stable (up to 100 °C) enhancement mode operation in AlGaN/GaN transistors, by controlling the two-dimensional electron gas depletion.
High-temperature, solvent-induced proton transfer and double proton transfer in adenine–thymine replaced with deazaadenine
Authors: Zhang Guiqing , Wei Yao
Published: December 2020

One way to improve DNA conductivity is to change the mobility of carriers via functional group modification. Based on molecular dynamics calculations, this paper discusses proton transfer between bases after replacing the nitrogen atoms at the 3 and 7 positions in adenine by carbon and hydrogen. At a high temperature, charge localization is improved, with the charge located on a single base. Additionally, proton transfer and double proton transfer appear at a high temperature. The effects of the aqueous solution, temperature, and functional group on proton transfer are analyzed and discussed. The improved charge localization and reduction in the effect of temperature in the substituted adenine provide great potential for improving charge transport in adenine–thymine base pairs.
Terahertz stepped wideband absorber based on graphene metamaterials
Authors: Che Zonge , Zhang Guanmao , Lun Yupeng , Li Zhihang , Suo Junhong , Yue Juan
Published: December 2020

A stepped graphene metamaterial terahertz absorber is proposed to achieve wideband absorption characteristics. By etching the rectangular groove on the surface of graphene and dynamically adjusting the length and the width of the rectangular groove, we improved the absorptivity up to 0.9475 and obtained a broadband absorption band of 5.885 THz. In addition, the absorber has the characteristics of electrical tunability, polarization independence, and large angle absorption, which improve the utilization of light waves. The graphene metamaterial absorbers proposed in this paper have potential applications in the fields of stealth and photoelectric conversion.
Design and characterization of telecentric f-θ scanning lenses for broadband terahertz frequency systems
Authors: Harris Zachery B. , Katletz Stefan , Khani Mahmoud E. , Virk Arjun , Arbab M. Hassan
Published: December 2020

Telecentric beam scanning using f-θ lenses offers nearly uniform spot size, linear beam displacement, and normal incidence angle over a planar surface. These unique properties allow for the minimization of imaging distortion over a wide field-of-view. In this article, we present a numerical method for designing custom f-θ lenses in the THz regime. We fabricated three lenses made from different commonly used polymer materials in the THz optics. We demonstrated their optical performance metrics compared to a conventional plano-convex lens over the broadband 0.3 THz–1 THz range. We find that the f-θ lens designed using the optical properties of high-density polyethylene achieved superior performance by maintaining a constant phase over a wide field of view of about 34°. We demonstrate this isophase property by measuring a constant time of arrival of the THz time-domain pulses over a reference mirror with a standard deviation of ∼19 fs, in excellent agreement with simulation predictions. This work will pave the way for the design and implementation of highly precise and fast telecentric imaging systems in the THz frequencies.
Optical diagnostics of the characteristics of a square unipolar nanosecond pulse-driven atmospheric pressure helium plasma jet
Authors: Tang T. Y. , Kim H. S. , Kim G. H. , Lee B. , Lee H. J.
Published: December 2020

Compared with the traditional sinusoidal voltage source, a short rising nanosecond voltage source can generate a high electron current for a short rising time. This paper investigates how the nanopulse parameters such as the voltage amplitude, pulse duration, and repetition frequency affect the radical generation and the plasma bullet propagation in an atmospheric pressure helium plasma jet. An intensified charge-coupled device was used to observe the bullet propagation in the nanosecond gate mode. The plasma bullet’s propagation speed is mainly affected by the applied voltage and externally biased electrodes rather than the pulse duration or the driving frequency. In contrast, optical emission spectroscopy diagnostics estimate that the radical density inside the atmospheric pressure plasma jet mainly increases with the repetition frequency. At the same time, the population of high-energy electrons can be controlled with the unipolar voltage amplitude. Thus, unipolar nanosecond pulses make it possible to control the emitting charges and the generated radicals independently.
Experimentally investigating the degradations of small-signal gain for a GaN class-AB dual-band power amplifier under high temperature and humidity conditions
Authors: Zhou Shaohua
Published: December 2020

In order to get the high temperature and humidity characteristics of key specifications for a power amplifier (PA), the degradation of the small-signal gain for a GaN class-AB dual-band PA under different temperature and humidity conditions is investigated experimentally. The experimental results show that the small-signal gain of the GaN class-AB dual-band PA will decrease under high temperature and humidity conditions. The main reasons for this degradation are discussed and analyzed in this paper.
Two-boson quantum interference in time
Authors: Cerf Nicolas J. , Jabbour Michael G.
Published: December 2020

Significance

We uncover an unsuspected quantum interference mechanism, which originates from the indistinguishability of identical bosons in time. Specifically, we build on the Hong–Ou–Mandel effect, namely the “bunching” of identical bosons at the output of a half-transparent beam splitter resulting from the symmetry of the wave function. We establish that this effect turns, under partial time reversal, into an interference effect in a quantum amplifier that we ascribe to time-like indistinguishability (bosons from the past and future cannot be distinguished). This hitherto unknown effect is a genuine manifestation of quantum physics and may be observed whenever two identical bosons participate in Bogoliubov transformations, which play a role in many facets of physics.
Snx14 proximity labeling reveals a role in saturated fatty acid metabolism and ER homeostasis defective in SCAR20 disease
Authors: Datta Sanchari , Bowerman Jade , Hariri Hanaa , Ugrankar Rupali , Eckert Kaitlyn M. , Corley Chase , Vale Gonçalo , McDonald Jeffrey G. , Henne W. Mike
Published: December 2020

Significance

SCAR20 disease is an autosomal-recessive spinocerebellar ataxia primarily affecting children, and results from loss-of-function mutations in the
SNX14
gene. Snx14 is an endoplasmic reticulum (ER)-localized protein that localizes to ER–lipid droplet (LD) contacts and promotes LD biogenesis following exogenous fatty acid (FA) treatment. Why Snx14 loss causes SCAR20 is unclear. Here, we demonstrate that, following exposure to saturated FAs, Snx14-deficient cells have defective ER homeostasis and altered lipid saturation profiles. We reveal a functional interaction between Snx14 and FA desaturase SCD1. Lipidomics shows Snx14-deficient cells contain elevated saturated lipids, closely mirroring SCD1-defective cells. Furthermore, SCD1 overexpression can rescue Snx14 loss. We propose that Snx14 maintains cellular lipid homeostasis, the loss of which underlies the cellular basis for SCAR20 disease.
The uncompromising confrontational argumentative style of the spokespersons’ replies at the regular press conferences of
China’s Ministry of Foreign Affairs
Authors: Wu Peng
Published: December 2020

According to van Eemeren’s expose about the theoretical notion “argumentative style” (2019: 153–171), each of the four stages of an argumentative exchange in a certain institutional context can have its own
argumentative style, but all of them may well belong to the same general category (for instance, “detached” or “engaged”). As the start of a
broad project investigating argumentative styles used in the spokespersons’ argumentative replies at the regular press conferences of
China’s Ministry of Foreign Affairs, this paper focuses on the uncompromising confrontational style prototypically used by the spokespersons
in responding to journalists, which is characterized by argumentative moves instrumental in strategies of silencing the other party,
distracting the other party, and pressuring the other party. By means of an analysis of three argumentative replies given by Chinese
spokespersons, this paper shows how this particular confrontational style takes shape and facilitates the spokespersons’ confrontational
maneuvering by being at the same time detached.
The emergent construction of feminist identity in interaction
Authors: Hirschey Marrese Olivia
Published: December 2020

This case study is an analysis of college-aged womens’ conversations about feminist identity and tracks a shifting attitude among college women with respect to feminist identification. Using conversation analysis, I argue that the interlocutors’ feminist identity is an interactional achievement produced by collaboratively setting aside topics related to feminism. This practice (re)problematizes feminism and maintains hegemonic standards of ‘feminist’ as an identity that needs to be accounted for in conversation. Building onEckert and McConnell-Ginet’s (2013)work on the phrase “I’m not a feminist, but…” I argue that feminist identification may be shifting, as the discourse in the present study fall more in line with “Iama feminist, but…,” producing a‘sort of’ feministidentity. In the discursive process of relevantly setting aside qualities and practices associated with feminism, the interlocutors (re)establish normativity surrounding feminist identity and its enaction in everyday conversation.
Unequal tensions: the effects of the coronavirus pandemic in light of subjective health and social inequality dimensions in Germany
Authors: Ohlbrecht Heike , Jellen Josephine
Published: December 2020

An online survey was conducted in Germany during the lockdown period to assess its psycho-social consequences. A convenience sample N = 2009 (comparable representation of former GDR and West Germany, 71% females) took part in the survey. The results show a negative impact of the corona pandemic on subjective well-being, health and life satisfaction. We also found a lower sense of security and an increase in anxiety. Additional strains follow a social gradient: Most apparent are negative effects on people with low educational background whose general life satisfaction particularly decreased and gender-specific differences in coping with everyday life challenges, this involves in particular mothers, who have to organise childcare and home schooling more often than fathers. Again, while parents generally felt constrained by social consequences of the pandemic, mothers were particularly affected, feeling more often exhausted, nervous and insecure than fathers. However, the crisis had some positives, too: the experience of stress and exhaustion was reduced; the crisis also revealed resources, such as adaptability in dealing with the changed time situation and new opportunities for self-care. The results illustrate that in this time of crisis, the family can be both a place of resilience and retreat as well as a stress factor.
Performance assessment of hexagrid structural system
Authors: Sooriya P , Bushra M A
Published: December 2020

The progression of innovation and advancement of economy of the world have brought new period of tall structures. Different types of structural systems pose challenges which are being faced by the structural engineers and architects in terms of innovation in structural system. Hexagrid is one among them. This system is adopted in tall buildings due to their structural efficiency and architectural potentials. Hexagrid encloses intersection of diagonal and horizontal or vertical members. This system is very similar to that of diagrid system and is configured by locating hexagons along the periphery of the building. This study aims to compare between hexagrid structural systems with different patterns and to find the optimal pattern which resists the lateral loads in hexagrid structural system. The use of hexagrids in a skyscraper is a relatively new idea. As such, more is yet to be explored in such a system.
Empirical research on strength and durability properties of bottom ash for sustainable concrete practice
Authors: Ashwathi R , Sabarinathan K , Velmurugan S
Published: December 2020

The prime constituents utilized in the construction field are concrete because of its easy availability and also by considering strength properties and cost-effective factors. It is composed essentially of fine aggregate, coarse aggregate and cement, where the fine aggregate manipulated during manufacturing is natural sand. The requirement for sand is thriving due to its abundant utilization in the construction industry, thereby the natural resource is becoming diminished. In sequence to overcome the depletion of sand, empirical research has been done on strength characteristics of concrete with bottom ash to partially counterbalance fine aggregate. Bottom ash is a residue obtained at the thermal power plant by combusting coal. It can be utilised in concrete as a partial replacing material for cement or fine aggregate or coarse aggregate. The practice of bottom ash in construction makes the disposal eco-friendly and hence reduces sand quarrying. In this paper, it is affirmed that bottom ash can partially (15%, 25%, 30%) replace fine aggregates without compromising the qualities of concrete.
Application of lime and GGBS to improve the strength of clayey sand
Authors: Muthu Lakshmi S , Geetha S , Selvakumar M , Sivanesan N , Sreedharan KR
Published: December 2020

Lot of industrial waste by-products such as fly ash, GGBS, silica fume, paper pulp etc. are generated all over the world leading to environmental degradation and pollution. Utilization of the industrial waste by-products in construction industry will at least reduce the quantity of these wastes that are being dumped in landfills leading to wastage of useful land area. But utilization of these industrial wastes as a construction material or as partial replacement in concrete or soil should not have a negative effect on their properties. Thus a thorough experimental investigation should be carried out before these industrial wastes are utilized in the construction industry. In the present experimental work, an attempt has been made to utilize GGBS along with quick lime to study their effect on the strength characteristics of locally available soil. GGBS was mixed with locally available Clayey Sand (SC soil) along with quick lime to investigate their effect on the UCC strength and soaked CBR strength of the soil. Quick lime was varied in percentages of 2%, 4%, 6% and 8% whereas GGBS was varied in percentages of 20%, 25%, 30%, 35% and 40% to determine the ideal percentage of lime and GGBS that should be added to SC soil for which maximum UCC strength and soaked CBR strength was attained. From the experimental results, it was found that for soil mixed with lime and GGBS increase in UCC strength and soaked CBR strength of 2.11 times and 7.44 times that of untreated soil was observed respectively.
Analysis of battery management system issues in electric vehicles
Authors: Karkuzhali V , Rangarajan P , Tamilselvi V , Kavitha P
Published: December 2020

Battery technology has dramatically advanced over a decade and many high performance batteries are being developed. Electric vehicles (EV) require high power batteries with suitable battery management systems (BMS) for safe and reliable operations. Intention of this paper is to discuss about the batteries used in electric vehicles and the key issues of battery management systems and to compare the Lithium ion (Li-ion) battery & Nickel metal hydride battery in terms of aging and effect of temperature using their state of charge (SOC) and open circuit voltage (OCV).
Study of Sensory Characteristics of Poultry Meat Obtained With the Use of Modern Stunning Technology
Authors: Shalginbayev D. B. , Uazhanova R. U. , Antipova L. V. , Baibatyrov T. A.
Published: December 2020

The article presents studies of color and aromatic characteristics of poultry meat samples obtained using the traditional method of stunning (using electric current) and gas stunning. Three samples of poultry meat (broiler) obtained by different methods of stunning different manufacturers are given: Kazakhstan, electrical stunning-1; Russia, gas stunning-2; Russia, electrical stunning -3. The meat was taken from 2 parts of the carcass: the round and the breast. Modern methods of studying color and aromatic characteristics allow to get adequate information about the processes occurring in poultry meat after slaughter and about the influence of stunning methods on the color characteristics and odor of meat. It is noted that the round meat has an identical color for all the studied samples. For breast meat, there is a slight decrease in the proportion of the red component of the color, the meat becomes grayer, while the color intensity of samples 1 and 3 decreases – for sample 1 by 17 %, for sample 3-by 11 %. The breast meat of the sample 2, despite the change in color intensity relative to the round of the same manufacturer, preserved. The results of studying the gas phase over meat samples did not show significant differences in the quality of meat. Comparison of the impact of stunning methods on the quality of meat proves that both methods are effective and contribute to the production of meat of excellent quality.
Mathematical model of dependence of factors for chromatographic separation of fructose from glucose-fructose syrup
Authors: Baikenov Alibek O. , Zh. Muslimov Nurzhan , Baigenzhinov Kadyrbek A. , Yessimova Zhazira A. , Kim Yuliya V.
Published: December 2020

The aim of this study is to determine the optimal parameters for the separation of glucose-fructose syrup sugars into glucose, fructose, and oligosaccharides. A mathematical model of chromatographic separation of glucose-fructose syrup (GFS) was constructed. During the optimization of the chromatographic separation process, it was found that the most significant parameter affecting the purity of the fructose yield is the dry matter content. In the course of research, it was found that the dry matter content of 30% is optimal for separating glucose-fructose syrup, at separating the use of this parameter made it possible to obtain a carbohydrate composition with a content of fructose 93%, glucose 5% and oligosaccharides 2%. This is the highest yield of fructose when separated by ion exchange resins of company “Purolite” brand PCR641Ca.
Solution of Tasks of Energy Efficiency of the Process of Drying Raw Plant Materials by Methods of Mathematical Modeling
Authors: Shevtsov Alexander A. , Drannikov Aleksey V. , Lytkina Larisa I. , Derkanosova Anna A. , Pribytkov Aleksey V.
Published: December 2020

Beet pulp has a high feed value, but after pressing it has a sufficiently high humidity, which leads to rapid spoilage. One of the ways to stabilize the quality of beet pulp is drying with superheated steam of reduced pressure. Mathematical modeling of heat transfer during convective drying of beet pulp is proposed. A feature of the model is the description of the drying process, which ensures its high intensity due to high heat and mass transfer ratios and preserves the quality of the finished product as a result of the process at a reduced pressure of transfer medium. In the period of a constant drying speed, dehydration of macroscopic pores topologically related to the sample surface, which are characterized by a relatively low binding energy of water molecules with the liquid phase, is taken into account. According to experimental data, the proportion of water content in these pores is 60…70% of the total moisture content. In the final stage of this period, an increase in the binding energy occurs due to the removal of water from microcapillaries, which is explained by the formation of structured clusters in thin wetting films of water molecules. The change in steam temperature as a result of passing through the product layer was 8 … 10 K, and the relative temperature change was 5 … 10%. The parameters of the models were identified in the following range of parameters: superheated steam temperature 393 … 453 K; speed of superheated steam 3 … 5 m/s; the pressure inside the drying chamber is 40 … 100 kPa; the specific load of the product on the grate is 8 … 24 kg/m2. The interpretation of the simulation results is presented by the dependences of the temperature difference between beet pulp and heat carrier T on the temperature of superheated steam Ts at various pressures P: 1 - 100 kPa; 2 - 80 kPa; 3 - 60 kPa; 4 - 40 kPa; υ = 4 m/s; at various specific loads of beet pulp on the gas distribution grid qsp: 1 - 8 kg/m2; 2 - 16 kg/m2; 3 - 24 kg/m2; υ = 4 m/s; P = 60 kPa and various speeds of superheated steam υ: 1 - 5 m/s; 2 - 4 m/s; 3 - 3 m/s. A sufficient convergence of the results was ensured, in which the deviation of the calculated data from the experimental data did not exceed 12, 5% in absolute value. The obtained results of the simulation can be used in the operational control of the technological parameters of the process of drying beet pulp with superheated steam of reduced pressure with a restriction on the temperature mode due to the receipt of a high quality product.
Article I. Design of Patch Antenna for Identification of Mal Practicing in Examination
Authors: Bhargava D. S. , Padmavathy T. V. , Sujanth Narayan K. G. , Sadagopal V
Published: December 2020

Malpractice is one of the serious issues faced in examination hall. The candidates will be examined thoroughly in the entrance itself. If they are found with possessing the electronic devices, the PGD (Paper Gadget Detector) will detect it. LCD (Liquid Crystal Display) displays the values and an alarm system will be used to give a warning to them. The proposed system is to search the candidates who are carrying the hidden written paper to the exam hall. The searching of hidden written paper can be obtained from Rectangular Microstrip Patch Antenna (RMPA). Here RMPA acts as a sensor which is used to detect the hidden material. This sensor can detect the target based on the permittivity value of each material. The sensors used in this study can be adjusted according to the values of blank paper and also to identify something written in the paper with different densities. The designed antenna has been simulated using Advanced Design System (ADS). The designed antenna (single element and 4 elements) has been compared in terms of various parameters like Gain, Efficiency, Directivity and Radiation Pattern etc.