bluuebunny/crossref_metadata_2025_split huggingface dataset:
Study on the classification of seawater corrosivity of typical sea areas in China
Authors: Ding Kangkang , Zhang Penghui , Liu Shaotong , Fan Lin , Guo Weimin , Hou Jian 
Published: July 2020

Abstract
In order to evaluate the seawater corrosivity of typical sea areas in China and provide guidance for the seawater corrosion protection on marine equipment and facilities, field exposure test was carried out. These typical sea areas under various climatic zones in China included Qingdao, Zhoushan, Sanya and a South China Sea reef, and Q235, copper, 5083 aluminum alloy and 304 stainless steel were chosen as test materials. The continuous monitoring of seawater environmental factors (temperature, salinity, pH, dissolved oxygen, etc.,) and the statistical work of first-year corrosion rates of test materials were done. Then, based on the metal corrosion rates method and the environmental factors method, the seawater corrosivity of these typical sea areas in China were classified, respectively. Furthermore, the classification results from the two methods were compared and analyzed.
Numerical study of serpentine flow field designs effect on proton exchange membrane fuel cell (PEMFC) performance
Authors: Velisala Venkateswarlu , Pullagura Gandhi , Golagani Naga Srinivasulu 
Published: July 2020

Abstract
The design of flow field greatly influences Proton Exchange Membrane Fuel Cell (PEMFC) performance, as it not only distributes the reactants, also removes the product (water) from the cell. Improper water removal blocks the reaction sites, which results in mass transport losses. A complete 3-D numerical model of PEMFC with a single serpentine (1-S), double serpentine (2-S),triple serpentine (3-S) and 3-2-1 serpentine flow fields with round corner was designed with the help of commercial Computational Fluid Dynamics (CFD) code ANSYS FLUENT. Simulations were carried out to investigate the effect of four flow fields on distribution of pressure, mass fraction of H2, O2, current flux density distribution, water content of membrane, and liquid water activity in the flow channels as well as the functioning of cells. Performance properties of proposed four designs were evaluated and found that 3-2-1 serpentine flow field performance is better than the 1-S, 2-S, and 3-S flow fields for the given flow rates of reactants and this 3-2-1 serpentine flow field model was validated with literature experimental data. The results also show that the velocity in channels increases with a decrease in the number of flow passes, which improve the reactions in the catalyst layers, reaction product removal from the cell thus reduces the concentration losses and improves the cell performance.
Response surface methodology for predicting the dimethylphenol removal from wastewater via reverse osmosis process
Authors: Al-Obaidi Mudhar , Al-Nedawe Basman , Mohammad Abdulrahman , Mujtaba Iqbal 
Published: July 2020

Abstract
Reverse Osmosis (RO) process can be considered as one of the intensively used pioneering equipment for reusing wastewater of several applications. The recent study presented the development of an accurate model for predicting the dimethylphenol removal from wastewater via RO process. The Response Surface Methodology (RSM) was applied to carry out this challenge based on actual experimental data collected from the literature. The independent variables considered are the inlet pressure (5.83–13.58) atm, inlet temperature (29.5–32) ° C, inlet feed flow rate (2.166–2.583) × 10–4 m3/s, and inlet concentration (0.854–8.049) × 10-3 kmol/m3 and the dimethylphenol removal is considered as the response variable. The analysis of variance showed that the inlet temperature and feed flow rate have a negative influence on dimethylphenol removal from wastewater while the inlet pressure and concentration show a positive influence. In this regard, F-value of 240.38 indicates a considerable contribution of the predicted variables of pressure and concentration against the process dimethylphenol rejection. Also, the predicted R2 value of 0.9772 shows the high accuracy of the model. An overall assessment of simulating the performance of RO process against the operating parameters has been systematically demonstrated using the proposed RSM model.
Teamwork in clinical reasoning – cooperative or parallel play?
Authors: Olson Andrew P.J. , Durning Steven J. , Fernandez Branson Carolina , Sick Brian , Lane Kathleen P. , Rencic Joseph J. 
Published: July 2020

Abstract
Teamwork is fundamental for high-quality clinical reasoning and diagnosis, and many different individuals are involved in the diagnostic process. However, there are substantial gaps in how these individuals work as members of teams and, often, work is done in parallel, rather than in an integrated, collaborative fashion. In order to understand how individuals work together to create knowledge in the clinical context, it is important to consider social cognitive theories, including situated cognition and distributed cognition. In this article, the authors describe existing gaps and then describe these theories as well as common structures of teams in health care and then provide ideas for future study and improvement.
Plasma-derived therapy: can the survivors of COVID-19 help the defenseless?
Authors: Majbour Nour , El-Agnaf Omar 
Published: July 2020

Abstract
Following the unprecedented global Coronavirus Disease 2019 (COVID-19) outbreak, multiple medical countermeasures ramped up to combat the virus and contain the spread of the pandemic. Despite continued uncertainty and a lack of clarity about the COVID-19, researchers have made tremendous strides in the development of prevention and treatment strategies. In this article, we focus on the use of convalescent plasma as therapeutic approach against COVID-19 infection.
An Analysis of the Structure of Trade Between Australia and China: An Australian Perspective
Authors: Marks Andrew 
Published: July 2020

Abstract
The structure of exports from Australia to China reveals the dominance of primary products with the structure of imports from this country reflecting the over-reliance on manufacturing goods. This has restrained and led to fluctuations in the balance of trade surplus in Australia thereby leading to lower than otherwise and more volatile output and employment growth. The pattern of trade between Australia and China is representative of trade between Australia and the rest of the world thereby magnifying these adverse effects. Strategic trade policy has the potential to alleviate these negative effects on output and employment growth in Australia.
Design of 89/118/166/183 GHz frequency dividing network for microsatellite application
Authors: Meng Jin , Wang Jing , Zhang Dehai , Zhang Shengwei , Jiang Changhong , Ji Guangyu 
Published: July 2020

AbstractMiniaturizing the microwave circuits for micro-satellite platform has been one of the development trends in microwave remote sensing. A novel 89/118/166/183 GHz frequency dividing network is proposed in this paper which includes two stages: the first stage is an F-G band diplexer that separate 89/118 GHz signals from 166/183 GHz signals. The measured typical transmission loss is 1.5 dB from 83.75 to 124 GHz at one output port as well as 1dB from 141 to 190 GHz at another output port. The second stage contains two diplexers based on waveguide circuit to separate the signals further. The measured typical transmission loss is 0.5 dB for the 89/118 GHz diplexer and 1 dB for the 166/183 GHz diplexer. The above-mentioned frequency dividing network has a vast application prospect due to compact structure and good performance.
Piotrowski-Altmann law: State of the art
Authors: Stachowski Kamil 
Published: July 2020

AbstractThe termPiotrowski-Altmann lawrefers to a wide range of linguistic phenomena which proceed in the “slow-fast-slow” fashion, i.e. drawing a sigmoid on a graph. They include the replacement of an old morphological form with a new one, lexical borrowing between languages, the growth of a child’s vocabulary, and many others. The paper briefly discusses the history of the law, its current variants and their applications, and lastly science theoretical problems connected with it. It concludes that our law is in fact a group of psycho- and sociological models, whose application to linguistics requires further deliberation.
Changes in wheat straw cell walls during ozone pretreatment
Authors: Ben’ko Elena M. , Chukhchin Dmitriy G. , Lunin Valeriy V. 
Published: July 2020

Abstract
Treatment of plant biomass with ozone is a promising delignification method. It was shown that lignin removal from the cell wall during ozonation was limited by topochemical reactions and toke place in the secondary rather in the primary cell wall. The separation of cellulose microfibrils, the loss of cell wall stiffness and complete removal of intercellular substance during the delignification process were visualized by SEM. The dependence of the average diameter of the cellulose microfibril aggregates in the cell wall of ozonized straw on ozone consumption was studied. Lignin removal caused an increase of size of cellulose microfibrils aggregates. It was demonstrated that there was an optimal degree of delignification, at which cellulose became more accessible to enzymes in the subsequent bioconversion processes. The data on the ozone consumption, residual lignin content, and sugars yield in the enzymatic hydrolysis of ozonized wheat straw were obtained. It was also found that the optimum delignification degree for sugars yield was ≈10% of residual lignin content and optimum ozone consumption was 2 mol·О3/mol C9PPU (phenylpropane structural unit) of lignin in raw straw.
Effect of multi-pass deformation on microstructure evolution of spark plasma sintered TC4 titanium alloy
Authors: Yan Jiangpeng , Xue Yong , Zhang Zhimin , Wu Yaojin , Zhao Xi 
Published: July 2020

AbstractThe TC4 titanium alloy powder test piece was prepared by spark plasma sintering. The multi-pass hot deformation of the TC4 titanium alloy was tested by using the Gleeble-1500 experiment machine. Measurement of relative density, X-ray diffraction, optical microscopy, scanning electron microscopy and electron backscatter diffraction were carried out for the TC4 titanium alloy. In order to reveal the evolution of the microstructure, describing its changes systematically is necessary, which has become the focus of this article. The results show that after multi-pass hot deformation, the relative density of the TC4 titanium alloy could reach 99.93%. With the increase in deformation and decrease in temperature, the β-transformed phase was retained, and many fine β-transformed phases were formed between two adjacent lamellar α. During the one-pass hot deformation, the rapid increase in relative density was the main reason for the instability of the flow stress in the stress–strain curve. For two-pass and three-pass hot deformations, more features of dynamic recrystallization and the characteristics of dynamic recovery at high strain rates (5 s−1) could be found. The size of the grains was about 15 µm after the three-pass hot deformation.
Computational fluid dynamics of rectangular external loop airlift reactor
Authors: Teli Shivanand M. , Mathpati Channamallikarjun S. 
Published: July 2020

AbstractThe novel design of a rectangular external loop airlift reactor is at present the most used large-scale reactor for microalgae culture. It has a unique future for a large surface to volume ratio for exposure of light radiation for photosynthesis reaction. The 3D simulations have been performed in rectangular EL-ALR. The Eulerian–Eulerian approach has been used with a dispersed gas phase for different turbulent models. The performance and applicability of different turbulent model’s i.e., K-epsilon standard, K-epsilon realizable, K-omega, and Reynolds stress model are used and compared with experimental results. All drag forces and non-drag forces (turbulent dispersion, virtual mass, and lift coefficient) are included in the model. The experimental values of overall gas hold-up and average liquid circulation velocity have been compared with simulation and literature results. It is seemed to give good agreements. For the different elevations in the downcomer section, liquid axial velocity, turbulent kinetic energy, and turbulent eddy dissipation experimental have been compared with different turbulent models. The K-epsilon Realizable model gives better prediction with experimental results.
A novel approach of closeness centrality measure for voltage stability analysis in an electric power grid
Authors: Adebayo Isaiah G. , Sun Yanxia 
Published: July 2020

Abstract
Modern power systems are increasingly becoming more complex and thus become vulnerable to voltage collapse due to constant increase in load demand and introduction of new operation enhancement technologies. In this study, an approach which is based on network structural properties of a power system is proposed for the identification of critical nodes that are liable to voltage instability. The proposed Network Structurally Based Closeness Centrality (NSBCC) is formulated based on the admittance matrix between the interconnection of load to load nodes in a power system. The vertex (node) that has the highest value of NSBCC is taken as the critical node of the system. To demonstrate the significance of the concept formulated, the comparative analysis of the proposed NSBCC with the conventional techniques such as Electrical Closeness Centrality (ECC), Closeness Voltage Centrality (CVC) and Modal Analysis is performed. The effectiveness of all the approaches presented is tested on both IEEE 30 bus and the Southern Indian 10-bus power systems. Results of simulation obtained show that the proposed NSBCC could serve as valuable tool for rapid real time voltage stability assessment in a power system.
Impact of octenyl succinic anhydride (OSA) modified starch on the particle size distribution and rheological properties of xanthan gum in aqueous solutions
Authors: Boulhaia Imene , HadjSadok Abdelkader , Moulai-Mostefa Nadji , Aouabed Ali 
Published: July 2020

AbstractEffects of addition of octenyl succinate anhydride (OSA) starch on the structural, rheological and thermo-rheological properties of aqueous solutions of 0.5 (w/v %) xanthan gum were evaluated. Analysis by dynamic light scattering revealed the absence of complex formation in the mixed solution. However, it was noticed that an increase in the concentration of OSA starch (COSA) leads simultaneously to an increase of the number of micelles and their self-assembly within the network formed by the xanthan macromolecules. This same mechanism was observed during the evaluation of the rheological properties. For systems containing 0.5 (w/v %) of xanthan and for which COSA ≤ 4 (w/v %), a thermoreversible behavior was found similar to that of xanthan in solution. Furthermore, for COSA ≥ 5 (w/v %), the rheological behavior remained indifferent to the increase in temperature but, scored a spectacular rise in storage modulus when the cooling temperature begins near 70 °C.
A parallel hybrid implementation of the 2D acoustic wave equation
Authors: Altybay Arshyn , Ruzhansky Michael , Tokmagambetov Niyaz 
Published: July 2020

Abstract
In this paper, we propose a hybrid parallel programming approach for a numerical solution of a two-dimensional acoustic wave equation using an implicit difference scheme for a single computer. The calculations are carried out in an implicit finite difference scheme. First, we transform the differential equation into an implicit finite-difference equation and then using the alternating direction implicit (ADI) method, we split the equation into two sub-equations. Using the cyclic reduction algorithm, we calculate an approximate solution. Finally, we change this algorithm to parallelize on graphics processing unit (GPU), GPU + Open Multi-Processing (OpenMP), and Hybrid (GPU + OpenMP + message passing interface (MPI)) computing platforms. The special focus is on improving the performance of the parallel algorithms to calculate the acceleration based on the execution time. We show that the code that runs on the hybrid approach gives the expected results by comparing our results to those obtained by running the same simulation on a classical processor core, Compute Unified Device Architecture (CUDA), and CUDA + OpenMP implementations.
The effect of novel simple saffron syrup on fatigue reduction in patients with multiple sclerosis
Authors: Ashtiani Alireza Rezaee , Seied Amirhossein Latifi , Jadidi Ali , Ghasami Keyvan , Khanmohamadi Hezave Ali , Aghae Pour Seyed Mohamad , Malekhosseni Shema , Kamalinejad Mohammad , Alimoradian Abbas , Salehi Mehdi 
Published: July 2020

Abstract

Objectives
Multiple sclerosis (MS) is a progressive and often debilitating neurological disorder. This chronic disease has a high prevalence in the world and also in Iran. Fatigue is a common symptom of the disease, which causes serious mental and psychological discomfort. Simple saffron syrup, contains some compounds that can be effective in relieving the symptom. The object of this study is to investigate the effect of simple saffron syrup on fatigue in patients with MS.

Methods
This study is a pre-post study which evaluates the fatigue rate of MS patients (30 participants) according to the FSS scale. The participants were given a saffron simple syrup to consume a tablespoon (7.5 cc) every 8 h for two months. After 60 days of prescribing, patients are assessed for fatigue based on fatigue severity scale (FSS) criteria.

Results
One-way ANOVA showed that there was a notable difference between the mean score of fatigue in MS patients before and after the intervention (p<0.001). So, the fatigue severity of the subjects after saffron syrup consumption dropped dramatically for two months. (p<00.01).

Conclusions
According to the outcomes of this study, simple saffron syrup can be effective as an adjunct therapy for fatigue reduction in patients with MS due to effectiveness besides no significant side effects.
Kinect Controlled NAO Robot for Telerehabilitation
Authors: Assad-Uz-Zaman Md , Islam Md Rasedul , Rahman Mohammad Habibur , Wang Ying-Chih , McGonigle Erin 
Published: July 2020

Abstract
In this paper, we focus on the human upper limb rehabilitation scheme that utilizes the concept ofteleoperation. Teleoperation can help the therapist demonstrate different rehab exercises to a different group of people at the same time remotely. Different groups of people from a different place connected to the same network can get therapy from the same therapist at the same time using the telerehabilitation scheme. Here, we presented a humanoid robot NAO that can be operated remotely by a therapist to demonstrate the exercise to a patient. To mimic the movement demonstrated by the therapist, Kinect V2 sensor which is a markerless vision-based motion-tracking device, was used. Modified Denavit-Hartenberg (DH) convention was used for the kinematic modeling of the human upper arm. From the Kinect data, a geometric solution was developed to find a unique inverse kinematic solution of human upper-extremity. Experimental results revealed that NAO could be teleoperated successfully to instruct and demonstrate patients to perform different arm movement exercises in real-time.
Variability of clinical and biochemical phenotype in liver phosphorylase kinase deficiency with variants in the phosphorylase kinase (PHKG2) gene
Authors: Waheed Nadia , Saeed Anjum , Ijaz Sadaqat , Fayyaz Zafar , Anjum Muhammad Nadeem , Zahoor Yasir , Cheema Huma Arshad 
Published: July 2020

Abstract

Background
PHKG2-related liver phosphorylase kinase deficiency is inherited in autosomal recessive pattern and is a rare type of liver glycogenosis. We demonstrated the clinical presentation and genetic determinants involved in children with PHKG2- related liver phosphorylase kinase deficiency.

Methodology
Ten Pakistani children with liver phosphorylase kinase from seven different families, were enrolled over a period of 18 months. All regions of the PHKG2 gene spanning exons and splicing sites were evaluated through targeted exome sequencing. Variants were analyzed using different bioinformatics tools. Novel variants were reconfirmed by direct sequencing.

Results
Seven different variants were identified in PHKG2 gene including five novel variants: three stop codons (c.226C>T [p.R76*], c.454C>T [p.R152*] and c.958C>T [p.R320*]), one missense variant c.107C>T (p.S36F) and one splice site variant (c.557-3C>G). All five novel variants were predicted to be damaging by in Silico analysis. The variants are being transmitted through recessive pattern of inheritance except one family (two siblings) has compound heterozygotes. Laboratory data revealed elevated transaminases and triglycerides, normal creatinine phosphokinase and uric acid levels but with glycogen loaded hepatocytes on liver histology.

Conclusion
PHKG2 related liver phosphorylase kinase deficiency can mimic both liver glycogenosis type I (glucose-6-phosphatase deficiency) & III(amylo-1,6 glucosidase) and characterized by early childhood onset of hepatomegaly, growth restriction, elevated liver enzymes and triglycerides. Molecular analysis would be helpful in accurate diagnosis and proper treatment. The symptoms and biochemical abnormalities in liver glycogenosis due phosphorylase kinase deficiency tend to improve with proper dietary restrictions but need to be monitored for long-term complications such as liver fibrosis and cirrhosis.
“The bus doesn’t stop for us”: Multilingualism, attitudes and identity in songs of a Tibetic community of Nepal
Authors: Gawne Lauren , Roche Gerald , Gamble Ruth 
Published: July 2020

AbstractThis paper draws on song texts from two corpora of Syuba, a Southern Tibetic language of Nepal. The songs have rich, interlinking themes relevant to language, identity and the situated context of Syuba people. We draw upon the texts to illustrate themes of identity, relationship, language, development and space. This analysis is grounded in an interdisciplinary approach bringing together linguistic, anthropological and historical perspectives. Through these themes, we come to a nuanced account of a minority language group, who see themselves as Syuba, Yolmo, Tibetan and Nepali, and how these multiple identities co-exist.
Value of communication, value of language: Nahuatl speakers and public health services in Sierra Norte de Puebla
Authors: Haimovich Gregory , Márquez Mora Herlinda 
Published: July 2020

Abstract
This paper is based on the data collected during fieldwork in the northern part of Mexico’s state of Puebla in 2018–2019. During that period, there was a need to gather information that would serve as a starting point for the participatory-action research project in San Miguel Tenango, a village where the majority of people speak Nahuatl as their mother tongue. In contrast, the employees of the health center located in the village have been exclusively Spanish-speaking doctors and nurses assigned there by the state department of health. The paper analyzes problems of communication between the medical staff and Indigenous patients, many of whom are not proficient in Spanish. It presents two different perspectives on communication in local health care settings, the one of medics and the other of patients. On comparing between them, we can recognize that the existing strategy of overcoming language barriers in Tenango, based mainly on family interpreters, has certain shortcomings, unnoticeable for the staff of the health center. The communication problems are discussed in the context of changing language attitudes among Nahuatl speakers. In addition, the paper includes a critical overview of recent initiatives to promote the use of Nahuatl in health services in the state of Puebla.