bluuebunny/crossref_metadata_2025_split huggingface dataset:
Rekonvaleszentenplasma zur Behandlung von schwerem COVID-19: Rationale und Design einer randomisierten, offenen klinischen Studie von Rekonvaleszentenplasma verglichen mit bestmöglicher supportiver Behandlung (CAPSID-Studie)
Authors: Körper Sixten , Jahrsdörfer Bernd , Appl Thomas , Klüter Harald , Seifried Erhard , Schrezenmeier Hubert 
Published: October 2020

ZusammenfassungRekonvaleszentenplasma wurde bei Patienten mit akuten, viralen respiratorischen Erkrankungen mit schwerem Verlauf eingesetzt (SARS- oder MERS-Coronavirus, Influenza H1N1, H5N1). Diese Studien erbrachten Hinweise auf eine Reduktion der Viruslast, einer Verkürzung des Krankenhausaufenthalts und eine Reduktion der Mortalität durch Rekonvaleszentenplasma. Die Wirkung konnte jedoch nicht abschließend belegt werden, da es sich nicht um randomisierte Studien handelte. Nach einer SARS-CoV-2-Infektion kommt es bei den meisten Patienten zu einer raschen Bildung von neutralisierenden Antikörpern. Wegen der pandemischen Entwicklung gibt es eine wachsende Zahl Genesener mit neutralisierenden Antikörpern, die als potenzielle Spender in Betracht kommen. Wir konzipierten eine prospektive, randomisierte Studie, um die Wirksamkeit und Sicherheit von Rekonvaleszentenplasma zur Therapie von schwerem COVID-19 und dessen Wirkmechanismus zu untersuchen (CAPSID-Studie). In diesem Beitrag werden
die Rationale und das Design der Studie vorgestellt.
Regional Recurrences and Hyams Grade in Esthesioneuroblastoma
Authors: Ziai Hedyeh , Yu Eugene , Weinreb Ilan , Perez-Ordonez Bayardo , Yao Christopher M. K. L. , Xu Wei , Yang Dongyang , Witterick Ian J. , Monteiro Eric , Gilbert Ralph W. , Irish Jonathan C. , Gullane Patrick J. , Goldstein David P. , Ringash Jolie , Bayley Andrew , de Almeida John R. 
Published: October 2020

Abstract
Objective The aim of this study is to determine if Hyams grade may help predict which patients with esthesioneuroblastoma (ENB) tumors are likely to develop regional recurrences, and to determine the impact of tumor extent on regional failure in ENB patients without evidence of nodal disease at presentation.
Design The study was designed as a retrospective review for ENB patients.
Settings The study was prepared at tertiary care academic center for ENB patients.
Participants Patients with ENB were included in the study.
Main Outcome Measures  Oncologic outcomes (5-year regional and locoregional control (LRC) and overall survival) in patients with Hyams low grade versus high grade. Oncologic outcomes based on radiographic disease extent.
Results A total of 43 patients were included. Total 25 patients (58%) had Hyams low-grade tumor, and 18 (42%) had high-grade tumor. Of the 34 patients without regional disease at presentation, 8 (24%) were treated with elective nodal radiation. There were no statistically significant differences in 5-year regional control in the Hyams low-grade versus high-grade groups (78 vs. 89%; p = 0.4). The 5-year LRC rates in patients with low grade versus high grade were 73 versus 89% (p = 0.6). The 5-year overall survival rates in patients with low-grade versus high-grade tumors were 86 versus 63% (p = 0.1). Radiographic extension of disease into the olfactory groove, olfactory nerve, dura, and periorbita were statistically associated with decreased 5-year overall survival (5-year OS 49 vs. 91% [p = 0.04], 49 vs. 91% [p = 0.04], 44 vs. 92% [p = 0.02], and 44 vs. 80% [p = 0.04], respectively).
Conclusion ENBs are associated with a risk of regional failure. The current analysis suggests that Hyams low-grade and high-grade malignancies have comparable rates of early and delayed regional recurrences, although small sample size may limit our conclusions.
Temporal Bone Adenoma: A Comprehensive Analysis of Clinical Aspects and Surgical Outcome on a Very Rare Entity
Authors: Alsalman Hussain , Crowther John A. , McLellan Douglas , Kontorinis Georgios 
Published: October 2020

Abstract
Objective The aim of this study is to present our experience in dealing with middle ear adenomas (MEAs), very rare tumors of the middle ear.
Methods The medical notes of individuals with MEAs treated in tertiary referral; academic settings were retrospectively reviewed. We recorded the presenting symptoms, imaging findings, and pathology results. We additionally examined our surgical outcomes, follow-up period, recurrence, and morbidity.
Results We identified four patients with MEAs: two males and two females with an average age of 36.25 years (range = 27–51 years). Despite the detailed imaging studies, including computed tomography and magnetic resonance imaging with intravenous contrast administration, a biopsy was essential in setting the diagnosis. Total surgical resection was achieved in all patients without any recurrence over an average of 6 years (range = 3–10 years). Complete ipsilateral deafness was the commonest surgical morbidity due to footplate infiltration by the tumor.
Conclusion Total surgical resection is the treatment of choice in MEAs to minimize the risk for recurrence; this can come with morbidity, mostly sensorineural deafness. Given the very limited literature, long-term follow-up is recommended.
Clinical Features of SARS-CoV-2 Infection
Authors: Midha Vandana , Jindal Jyoti , Bhanot Rishu 
Published: October 2020

AbstractViral diseases continue to emerge and represent a serious issue to public health. Since viral transmission occurs through respiratory droplets, most patients with coronavirus disease 2019 (COVID-19) predominantly have respiratory tract involvement. The clinical spectrum of COVID-19 ranges from asymptomatic to symptomatic with mild, moderate, and severe degrees of illnesses. There are no specific clinical features that can yet reliably distinguish COVID-19 from other viral respiratory infections. Unexplained worsening of underlying chronic illnesses and comorbidities should raise the suspicion of COVID-19. Beyond the life-threatening pulmonary complications of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the widespread organ-specific manifestations of COVID-19 are increasingly being appreciated. Given that angiotensin-converting enzyme 2, the entry receptor for the SARS-CoV-2, is expressed in multiple extrapulmonary tissues and that all might contribute to these extrapulmonary manifestations of COVID-19, here we review the pulmonary and extrapulmonary presentations for patients with COVID-19.
Step by Step Stress Analysis of Ammonia Scrubber Vertical Pressure Vessel Using Finite Element Method
Authors: Arhami  , Mubarak Amir Zaki , Saputra Andika , Ali Masri 
Published: October 2020

Abstract
In order to solve the stress problem of ammonia scrubber pressure vessel, this paper proposes the analysis steps using finite element method. The study is a type of vertical pressure vessel used to remove pollutants in ammonia gas. Firstly, the modeling of the vertical pressure vessel geometry was carried out using Autodesk Inventor Professional 2017. Secondly, the meshing was carried out using Autodesk Nastran In-CAD 2017. For the meshing, we used tetrahedral element and we chose the parabolic type element order. Thirdly, the analysis was carried out using Autodesk Nastran In-CAD and based on the design pressure of 0,5 MPa with a volume of 1,21 m3. The results showed that the maximum stress occurred in the connection area between the inspection opening and the shell of 333,4 MPa. The maximum displacement occurred in the shell adjacent to the inspection opening was 3,268 mm. Based on ASTM standards on SA 240/A240M Gr 304 material, the maximum strength of material stress was 515 MPa. Finally, theoretical validation was carried out for the entire model, and the results were within the permissible limit.
Design and development wire cutter CNC for Styrofoam product
Authors: Syahriza  , Aulia U , Muspika L 
Published: October 2020

Abstract
Cutting Styrofoam manually will result in inaccurate cutting and dissimilar shape. To upgrade the quality of the product, a Styrofoam cutting machine which can cut automatically is needed. Thus, the aim of this research is to create a Styrofoam cutting machine using CNC 2 Axis Wire Cutter which can cut the material according to the CAD drawing module, and accelerate the cutting process. The control system of the machine uses the Arduino UNO microcontroller. The cutting process is performed by sending G-Code file to the microcontroller through the Universal G-Code Sender software. Afterwards, the microcontroller sends a signal to activate the stepper motor, and it is generated actuator movement according to the drawing in G-code file. The optimal Styrofoam cutting resulted by using CNC Wire Cutter with 0.2 mm nickel wire, 220oC, and 2 cm thickness.
The planning of iron sand inventory with System Dynamic Approach
Authors: Sentia P D , Andriansyah  , Lufika R D , Satria M J 
Published: October 2020

Abstract
The need for iron sand as a supporting material of the cement making is increasing, so companies require planning of inventory control of iron ore to get all the needs in terms of quality and quantity. Inventory control planning will be useful to meet the demand and reduce inventory wastage. In the production process, companies often experience a shortage of materials when demand soared and raw materials excessed when demand decreases. This study aims to determine the best ordering method next year so that the company does not experience the stock shortage. The system dynamics method was applied with the help of Powersim software in terms of modelling and simulating the iron ore ordering system in the form of several scenarios. Based on the result, the best scenario was to order the iron ore as much as 4,013 tons/month, which is twice the amount in the previous policy, and the average inventory of the iron ore was 10,943 tons/month.
Heat Transfer Analysis on the Tube Type Heat Exchanger with Fin Pitch Variations
Authors: Syuhada A , Afandi D , Sofyan S E 
Published: October 2020

Abstract
A heat exchanger is a device usually used to dissipate the heat generated during the mechanical processes. To improve the performance of the heat exchanger, a lot of research has been conducted including the addition of fins on the outer surface. This experimental study examines the heat transfer process on the outer surface of the heat exchanger. The heat exchanger was made of galvanized pipes with an inner and outer diameter of 20 mm and 22 mm. The heat exchanger has a pass length of 30 cm, the spacing between the tube of 6 cm and a total length of 6 m. The spiral fin made of an aluminum plate is mounted to the outer surface of the tube pipe of the heat exchanger. It has a thickness of 0.3 mm. The fin pitch of the heat exchangers was varied to 3 cm, 5 cm, and 7 cm. The heat exchanger was fed with hot water at a constant temperature of 80 °C and a flow rate of 0.4 L/s. While, the ambient air was blown at the outer surface of the heat exchanger at three different speeds namely 2.4 m/s, 2.8 m/s, and 3.4 m/s. It is found that the highest convective heat transfer rate and convective heat transfer coefficient are yielded by the heat exchanger with a fin pitch of 3 cm namely, 6607.2 W and 235.8 W/m2K, respectively.
Development of rule-based expert system for conceptualisation of poster design
Authors: Purnomo M R A , Hidayatuloh S 
Published: October 2020

Abstract
This study discusses development of rule-based expert system (R-ES) as a decision support for poster design conceptualisation. Users of the proposed expert system are novice poster designers while the experts are senior and professional poster designers. Development of R-ES is started by defining type of poster to be designed. Based on professional poster designer’s experiences, 5 types of poster have been proposed, which are advertising, information, movie, event and political poster. A knowledge-based system consists of IF-THEN rules have been developed by the experts to determine poster design concept that are colour combination, poster size, font type and size, expert note, and poster sample. Result of this study is an online expert system for conceptualisation of poster design that could be widely used by novice poster designers without constrained by space and time.
Biomechanical Posture Assessment of Salted Fish Industry Workers in West Aceh
Authors: Husni  , Hasanuddin I , Hadi K , Akram  , Firsa T 
Published: October 2020

Abstract
Salted fish is dried fish that is preserved by adding salt as the preservative medium. The process of production starts with cleaning, salting, boiling, drying, sorting, and packing. The length and complexity of the process lead to an increase in the risk of MSDs and posture complaints among the workers. This study aimed to find out the factors that caused the complaints with the biomechanical posture method. Six subjects were measured for the tension at erector spinae and the moment at (lumbar 5 sacrum 1) L5-S1 vertebral joint created by body segments and load, the calculation of the workers’ body segment weight, the distance of the body’s center point to the lumbar 5 sacrum 1 (L5-S1), and biomechanics at L5-S1. The largest body segment weight was found at the cleaning station, which dealt with the process of manually lifting the fish, with a bodyweight value of 70 kg, Wtrunk: 350 N, Whead: 58.8 N, Warm: 35.7 N and Wload: 300 N. The farthest distance from the body’s center point to L5-S1 was found at the drying station, which deals with the process of drying the fish, with values of the distance of head (dhead): 54.78 cm, distance of trunk (dtrunk): 59.26 cm, distance of arm (darm): 67.39 cm and distance of box (dbox): 86.11 cm. The largest moment in force on L5-S1 was found at the packing station, which deals with the fish transferring and packaging process, with the value of the moment of force at 5351.86 N and 4215.28 N. Therefore, it is suggested that the salt fish industry finds solutions, re-designing the work station, decreasing the lifting load, and producing proper equipment to assist workers during labor to improve their safety and health.
The Design of Rowing Ergometer Based on the Anthropometry of Acehnese Male Athletes
Authors: Hasanuddin I , Husaini  , Rizki M N , Akhyar  , Nasruddin M , Amir N , Marlina Y , Asmawati L 
Published: October 2020

Abstract
A rowing athlete requires effective and systematic physical training. Thus, an ergometer is very influential on the endurance of an athlete’s body and becomes a vehicle of simulating groundwater rowing. However, the ergometer tool currently used has no specifications and dimensions that are in accordance with the anthropometry of male rowing athletes in Aceh. Based on these conditions, the rowing ergometer tool will be designed based on the anthropometry of rowing athletes in Aceh. Data retrieval was done by taking samples from six male rowing athletes. The data were then tested for the level of trust, accuracy, uniformity, and adequacy. From the results of data analysis, the design of the ergometer tool was in accordance with the anthropometry of male rowing athletes in Aceh. This situation can build comfort for male athletes and increase the endurance of their muscles. This includes maintaining the tempo of rowing and being able to move oars with long distances in a short time.
The influence of energy production from renewable energy sources on energy efficiency and total factor productivity
Authors: Balashova S. A. , Gomonov K. G. , Matyushok V. M. 
Published: October 2020

Abstract
The article analyzes the international experience of improving energy efficiency due to increasing the level of energy production from renewable sources and technological changes. Empirical verification of the related hypothesis has been carried out for the USA, China, India, Germany and Russia using econometric tools. The necessity of the transition to a new energy structure based on the active introduction of energy-efficient technologies, renewable energy sources, integrated systems and intellectual energy services based on an open grid architecture is substantiated. The posed hypotheses confirm the following: the production of energy from renewable sources is increasing in all countries, not only in the countries with the lack of fossil energy sources (Germany, India, China), but also in the USA and Russia; the growth of energy consumption caused by the growth of the economy and the population is humped due to the introduction of energy-efficient technologies and due to an increase in the share of renewable energy; growth in the share of renewable sources in energy consumption and total factor productivity increases energy efficiency in terms of GDP per unit of energy used in Germany, India and Russia.
Fast and Integrated Chargers for Lithium Ion Batteries
Authors: Sabarimuthu M , Senthilnathan N , Kumar M Arun , Kamalesh M S , Jayaprakash V , Srinivasan R 
Published: October 2020

Abstract
Electric vehicles were introduced in the year of 1908, where they have larger battery for power supply. Now- a- days the technique for charging e-bikes is done either by using grid supply or solar power. This paper says about charging circuit for batteries which uses both solar power and power from the grid to charge the electric vehicles. The charging with solar helps to reduce the emission from power grid. Ever-increasing demand for fuel supply, rising fuel prices, and increased environmental awareness among masses are paving the way for electric vehicles (EVs). Although, in recent years EV market has seen an exponential growth, one of the major challenges faced by this automotive/vehicular market. Now the Indian government had ordered to Indian Vehicle Association to launch the electric vehicles with in 2023. But the charging of electric Batteries has taken more time, which compare to fossil fuel and gas. To overcome this issue use of turbo charger, to reduce the charging time as well as self charging by solar during running time is proposed. The charger uses the source from EB grid and solar as well as at parking time. The results proves that proposed work have reduced the charging time of the lithium ion battery compared to the conventional charging technique and all under controlled temperature raise.
Performance Enhancement of Boost Converter Fed Permanent Magnet Synchronous Machine
Authors: SachinAmreiss GN. , Kalavalli C. , Nazar Ali A. 
Published: October 2020

Abstract
The renewable energy plays a vital role in various fields like electronic and automotive applications. This paper presents the Permanent magnet synchronous machine (PMSM) which is fed by boost converter. A wide range of dc voltage is fed to bridge inverter by boost converter which in turn controls the speed of PMSM. Boost converter is used to boost up the input voltage. An electric vehicle may be powered through a shaft of the motor to run the various electric vehicles like electric aircraft, electric truck, electric space craft, electric locomotive etc. In this paper by using converter topologies increase the performance of the motor speed. The performance of the proposed system is verified using MATLAB/Simulink and presented results demonstrate the performance and analysis of the system to provide high speed by using PID controller.
Groundwater Monitoring System Using Internet of Things
Authors: SachinAmreiss GN. , Karthikeyan B. , Premkumar K. 
Published: October 2020

Abstract
The major problem among the people is that they are lacking in the awareness of the underground water usage. Thus, they are in the process of designing the “Application” which gives the data about the underground water consumption of the consumers and monitor the ground water usage of the consumers. Also, alarming when the maximum usage of water or wastage of water. This system sends the information of the water usage of that area and automatically recorded in the government water board of that area with quantity of the water usage, If exceeds the limit will have the locking system of the water supply of the usage area with fine. Thus the paper gives the total guidance to the people according the usage of the underground water resources digitally with the application itself
Comparison of Emulated Inertia controller with Synchronous Generator
Authors: Sarojini Ratnam Kamala , Palanisamy K 
Published: October 2020

Abstract
The emulated inertia controller (EIC) is designed to emulate the inertia to the power electronic inverter. The EIC helps to integrate the large-scale PV into the grid without affecting the stability. This paper demonstrates the design of EIC control. This paper the highlights the comparison of EIC with the traditional synchronous generator (SG). The frequency response of both EIC and SG are compared for different scenarios.
Liquid metal level measurement techniques
Authors: Reshma R , Ramachandraiah Uppu , Devabalaji K R , Sitharthan R. 
Published: October 2020

Abstract
Various types of liquid metal level measurement are used in various applications. Liquid metals have excellent electrical properties which can also be utilized for level measurement. Many types of level measurement exist such as pressure transducers, floats, inductive devices, resistance tubes, visual etc. Many liquid metals have corrosive or toxic nature. This mandates indirect or non-intrusive means of measurement. So techniques are being experimented even now for the easy attainment of accurate measurements. This paper gives a brief description on various level measurement techniques used to measure the level of liquid metals. Detailed description about a mutual inductance based level probe is also presented in this paper.
HERIC Inverter- A SEPIC based transformer-less converter design and simulation for isolated standalone PV system
Authors: Udayakumar M.D. , Gowthaman K.S. , Prabhu A , Nazar Ali A. 
Published: October 2020

Abstract
Photovoltaic transformer-less inverter due to its high efficiency, low power loss and cost plays an important role in energy market. In this paper solar PV based 1φ transformer-less HERIC converter for standalone isolated PV system has been designed and analysed. To control the solar PV output, a dc-dc SEPIC converter is modelled and designed with the feature of Maximum Power Point Tracking. Contrary to other inverter topologies H5, H6, NPC (neutral point clamping), HERIC inverter comprises low leakage current. The entire proposed system is designed and simulation is carried out in MATLAB environment.
Design, analysis and optimal sizing of standalone PV/diesel/battery hybrid energy system using HOMER
Authors: Thirunavukkarasu M , Sawle Yashwant 
Published: October 2020

Abstract
Now that the world’s most important problems are the lack of fossil fuel reserves, we need to find a solution to preserve non-renewable resources and replace them with other renewable resources such as solar power. The next focus is on the rising level of undesired gases, such as carbon dioxide, etc. There is a need to regulate the impact of such greenhouse gases. This paper mainly intentional to situate optimal scheduling and to meet the power demand profile by the utilization of available solar energy resources. Considering the above data we have put forth an attempt to scrutinize the leverage of distributed Generation considering solar energy, alone can vary, when associated together they give a dependable wellspring of vitality as a DG is utilized as reinforcement unit for the crisis. So consolidating a solar powered energy source with a diesel generator provides reliable generation, utilizing independent sunlight based renewable power system for a chose area in Vellore region, Tamil Nadu, India. The principle goal of this paper is to decide the optimal sizing dependent on different designs, moreover reduce the cost parameters such as, total net preset Cost (TNPC), system cost of Energy (COE), unmet electric load, CO2 emissions by utilizing HOMER Software. It is found that the PV/Diesel/converter combination provides optimal results which providing vitality with 0% unmet load at the minimum electricity cost, which is diminished from$ 0.672 to $0.319/Kwh.