bluuebunny/crossref_metadata_2025_split huggingface dataset:
What You Need to Know About AQP4, MOG, and NMOSD
Authors: Prasad Sashank , Chen John 
Published: December 2019

AbstractNeuromyelitis optica (NMO) is an antibody-mediated inflammatory disease of the central nervous system with a predilection for the optic nerves, spinal cord, and certain brain regions. While NMO was previously considered a variant of multiple sclerosis (MS), it is now known to have distinct clinical, pathological, and immunological features. The identification of AQP4-IgG, a pathogenic antibody against aquaporin-4 (AQP4), delineated NMO from MS and markedly advanced insights into the unique features of this disease. The specificity of this antibody has allowed an expanded view of the clinical presentations of NMO-spectrum disorders (NMOSD), without requiring all the clinical features that were previously essential to make a clinical diagnosis. Early, accurate diagnosis of patients with NMOSD permits treatment with appropriate acute and long-term immunosuppressive agents that are critical to mitigate the risk of disability associated with this disease. More recently, a subset of patients with the NMOSD phenotype have been found to have autoantibodies targeting myelin oligodendrocyte glycoprotein (MOG), which has a different pathogenesis and expected outcome. Better understanding of the distinct pathophysiology of these disorders has laid the foundation for targeted efforts to develop novel, disease-specific treatments. In this review, we discuss the revised diagnostic criteria for NMOSD, appraise the diagnostic significance of the AQP4-IgG and MOG-IgG tests, review evidence supporting the use of available treatments for acute episodes and long-term disease modification, and highlight key emerging immunotherapies.
Enteroendocrine and tuft cells support Lgr5 stem cells on Paneth cell depletion
Authors: van Es Johan H. , Wiebrands Kay , López-Iglesias Carmen , van de Wetering Marc , Zeinstra Laura , van den Born Maaike , Korving Jeroen , Sasaki Nobuo , Peters Peter J. , van Oudenaarden Alexander , Clevers Hans 
Published: December 2019

Significance
The stem cell niche is the in vivo microenvironment in which stem cells both reside and receive stimuli that determine their fate. Intestinal Paneth cells produce an arsenal of molecules involved in numerous biological processes, including critical support of the intestinal stem cell niche via the expression of niche ligands, growth factors, and cytokines. The relevance of the niche function of Paneth cells has been challenged, however. Here we show that specific, acute ablation of Paneth cells in mice does not affect the stem cell population, because alternative niche cells derive enteroendocrine and tuft cells. These cells serve as an alternative source of Notch signals, which are essential for intestinal stem cell maintenance.
The study effects of the characteristics of hydraulic oil on calibration of hydraulic pressure balance
Authors: Khamnounsak C , Likit S 
Published: December 2019

Abstract
One of the sources of an anomaly in the calibration of a hydraulic pressure balance is a various kind of working fluids that is employed in an operation. Therefore, the pressure and vacuum laboratory at National Institute of Metrology (Thailand), also known as NIMT, has been studied the effects of using different types of working fluids. The purposes of the study are to find piston effective area and study effectiveness of hydraulic pressure balance by observing falling rate and piston rotating time. The studies were performed in two ranges which are between 40 bar to 70 bar, and 600 bar to 700 bar. The results illustrate that the effective area of piston in the range of 40 bar to 70 bar has the maximum difference of 14 ppm, and in the range of 600 bar to 700 bar, it has the maximum difference of 5 ppm which will not affect the accuracy of hydraulic pressure balance. In addition to that, hydraulic pressure balances that use DHS oil have a falling rate approximately double of hydraulic pressure balances that use ISO VG 22 oil. Regardless, this does not affect the calibration result also the usage of the equipment. As the result, these two oils can be used interchangeably in calibration of hydraulic pressure balance that used in industry sector.
The mass distribution and the rotation curve of the Milky Way Galaxy using NARIT 4.5 m small radio telescope and the 2.3 m Onsala radio telescope
Authors: Mingmuang Y , Tummuangpak P , Asanok K , Jaroenjittichai P 
Published: December 2019

Abstract
This study was aimed to make the neutral hydrogen (HI) mapping and rotation curve of the Milky Way at galactic longitude 0° to 90° in the galactic plane by using the 4.5 m Small Radio Telescope (SRT) of National Astronomical Research Institute of Thailand (NARIT) and the 2.3 m Onsala radio telescope. The HI spectra at wavelength of 21 cm can be used to analyze the dynamical properties of the Milky Way with Gaussian fitting software, which was developed by using Python programming language. SalsaJ is another free astronomical software which was also used in this study by analyzing the Gaussian spectra of the Onsala radio telescope. For making sure the performance of developed software, therefore, it will be tested between their observation spectra of NARIT 4.5 m SRT and the Onsala radio telescope together with the public international archive. The results showed that the positions of HI are distributed in a spiral - arms shape and the rotation curve is constant at the galactic distance (R) > 3 kpc. The spherical mass distribution (in terms of the surface mass density) was approximated by directly using rotation curve. Our results are in good agreement with the standard values.
Study of carbide composites processed by spark plasma sintering for Gen IV reactors
Authors: Kwamman T 
Published: December 2019

Abstract
The variant of TiC/SiC interfaces was successfully fabricated by SiC powder (P) and lump SiC (L) by spark plasma sintering (SPS) at 1800 °C. There were no chemical reactions between SiC and TiC at that temperature. The larger TiC/SiC interfaces can be created by lump SiC. In contrast, the uniform distribution of TiC/SiC was found when using SiC powders. A network of micro-pores still appeared in both TiC with 30 % SiC and TiC with 50 % SiC composites, stress fields developed at the interface between TiC and SiC grains due to their differences in thermal expansion coefficients, confirmed by the peak shift about 2 cm-1 from Raman peak of 969 cm-1. Thermal diffusion of TiC/SiC composites was significantly higher than TiC monolith and varied regard to SiC contents.
Initial pointing model of the 40m Thai National Radio Telescope with an 8-inch optical telescope
Authors: Phakam A , Jaroenjittichai P , Prasert N , Asanok K , Singwong D 
Published: December 2019

Abstract
As a part of the mega-project, known as “Radio Astronomy Network and Geodesy for Development (RANGD)” by National Astronomical Research Institute of Thailand (NARIT), the fully steerable 40m Thai National Radio Telescope (TNRT) is under construction in the eastern region of Chiang Mai. From December, 2019, commissioning stage of TNRT includes the determination of pointing and aperture efficiencies, which are expected at no wind condition as 2 arcsec (rms) and 60 percent at K-band, respectively. Perfect alignment between the antenna pointing system with on-sky coordinates system, e.g. equatorial, is very crucial in obtaining such high pointing accuracy. In the initial step without the K-band receiver, this can be partially achieved with the installation of an optical telescope with an imaging system on the antenna structure and the initial pointing offset can be determined by tracking planets or other celestial sources in the optical. Here, we present the complete design of the system consisted of an 8-inch reflective telescope, a focuser and 20 MP camera, which results in the field of view of 22.67 by 15.15 sq. arcmin and the resolution of 0.25 arcsec. The complete measurement procedure for such approach and discussion on the advantages and limitations are also included.
CALLISTO spectrometer for solar radio bursts monitoring in Chiangmai
Authors: Prasert N , Phakam A , Asanok K , Jaroenjittichai P , Chumthong A , Thongmeearkom T 
Published: December 2019

Abstract
Solar radio bursts are important phenomena for studying solar activities such as flares and coronal mass ejections (CMEs). A worldwide network is ∼ 90 stations, known as, e-CALLISTO, has been developed such purpose. This CALLISTO spectrometer was installed at Princess Sirindhorn AstroPark, National Astronomical Research Institute of Thailand, Chiangmai, in January 2019. The instrument has been designed for monitoring and collecting the data of solar radio activities at the frequency range between 45 and 870 MHz. In this paper, we report the installation and preliminary measurements of the CALLISTO spectrometer. The data collected will be stored in Radio Astronomy Center of NARIT and transferred to the ETHZ data archive.
Physical properties and thermal conductivity of soil geopolymer block
Authors: Jittabut Pongsak 
Published: December 2019

AbstractThis research aimed to study the mixing ratios of fly ash and rice husk ash on the physical properties and thermal conductivity of soil geopolymer block. Fly ash to rice husk ash ratios for this experiment were 100:0, 80:20, 70:30, 50:50, 30:70, 20:80 and 0:100 %wt, respectively. The properties analysis of soil geopolymer block such as the compressive strength, water absorption, apparent porosity, bulk density and thermal conductivity were tested. The results indicated that soil geopolymer block of 80:20 %wt at 28 days of curing gave the maximum compressive strength of 131.43 kg/cm2. The minimum water absorption of 7.70 %, minimum bulk density of 2, 056.34 kg/cm3, minimum apparent porosity of 15.64 %, minimum thermal conductivity of 1.8674 W/m.K, were obtained. The compressive strength of soil geopolymer block increased up to 87 % and the thermal conductivity has decreased to 35 % compared to commercial cement block. The compressive strength, the water absorption and the bulk density of 80:20 %wt mixtures was in accordance with the standard product community at 602/2547 that can be used in construction applications.
Measurements of tin-palladium catalyst concentration by an optical method
Authors: Promsawang C , Jansukra P , Meechan W , Luengviriya C 
Published: December 2019

AbstractElectroless plating on plastics is a technology that changes the plastic surfaces to appear like metals for decoration as well as specific applications. The plastic surfaces are commonly treated in a catalysing process by using a tin-palladium catalyst whose concentration is in a specific range. Since the concentration of the tin-palladium catalyst strongly affects the catalysing process as well as the plating quality, its concentration is regularly monitored. We present a study on measurements of the concentration of the tin-palladium catalyst with red-brown color based on an optical method. Its absorption spectrum monotonously decreases when the wavelength of the incident light increases. For a given wavelength, the absorbance increases with the concentration. Five standard concentrations are used to construct several calibration equations between the absorbance and the concentration by linear fits for different wavelengths. The calibration equations are verified by eight tested solutions. The results show that wavelengths in the range of 310 – 500 nm are suitable for the concentration measurements of tin-palladium catalyst since the errors are less than 5%.
Long-term with short-intervals monitor of 6.7 GHz CH3OH masers using Hitachi 32-m radio telescope to statistically research the periodic flux variability around high-mass protostars
Authors: Sugiyama K , Yonekura Y , Motogi K , Saito Y , Momose M , Honma M , Hirota T , Uchiyama M , Tanaka K E I , Kramer B H , Asanok K , Jaroenjittichai P , Fujisawa K 
Published: December 2019

Abstract
We initiated a long-term with short-intervals monitoring project toward 442 CH3OH masers at 6.7 GHz (Dec > -30 deg) using Hitachi 32-m radio telescope of Japan in Dec 2012. Our observations have been carried out daily, monitoring a spectrum of each source with intervals of 9-10 days. In Sep 2015, the number of the targets sources and intervals were redesigned into 143 and 4-5 days to detect periodic variations with periods shorter than 30 days. We have so far obtained new detections of periodic flux variations in 31 CH3OH sources with periods of 22-409 days. These periodic flux variability with timescale between a few months and a few years must be a unique tool to study high-mass protostars themselves and their circumstellar structures on a tiny spatial scale of 0.1-1 au (∼1.5 x 107-8 km). We will also present the future prospect via monitoring of OH and H2O masers in these periodic sources using 40-m Thai National Radio Telescope that is under construction by NARIT.
Fall detection system with 3-axis accelerometer
Authors: Aphairaj D , Kitsonti M , Thanapornsawan T 
Published: December 2019

Abstract
In this work, the designed and developed process of a fall detection system using a NodeMCU microcontroller is described. A 3-axis acceleration sensor is used to obtain the data of the movement of humans and changes in acceleration are used to determine trends in falling. The ESP8266 microcontroller is used to the receive the data in real time and alert the family through the LINE application. Experimental results show that the system is capable of precisely producing alarms for falling actions and has a high detection precision and effectiveness.
Chemical agent monitor simulator (CAMSIM): prototype
Authors: Torasa C , Won-in K , Dararutana P 
Published: December 2019

Abstract
Chemical Agent Monitor Simulator or CAMSIM is used for training the trainees of the Royal Thai Army Chemical School in the Chemical Warfare Detection Course to familiarize, and to expert for using detection and identification. This research is aimed to design and produce a prototype of the CAMSIM which uses in the military training. The designed system is operated using ultrasound with the difference intensity for training to detect chemical residues in the field and on the body or clothing. The product is composed with the Chemical Agent Monitor Simulator (CAMSIM) which can be detected 4 different ultrasonic signals simultaneously and 4 different ultrasonic sources. The CAMSIM can present both in type (ultrasonic frequencies) and intensity of the chemicals (ultrasonic intensities). It can be concluded that this is real, safe and amenable to deliver and validate the high quality training. It is simultaneously signal detection. And the trainees are also familiar with the operations.
Physical and chemical characterization of Lopburi clay before and after calcination
Authors: Chomyen P , Sinthupinyo S , Chamnankid B , Hanpongpun W , Chaipanich A 
Published: December 2019

Abstract
Supplementary cementitous materials (SCMs) may be used as a substitution of Portland cement to reduce CO2 emissions in the cement industry. One of promising Supplementary cementituous materials for practical use in the construction industry is calcined clay. Clay must be calcined to form high reaxtivity pozzolanic materials from mineral addition known as amorphous metakaolin (AS2). Calcined clay may be used to improve mechanical properties, durability and some characteristic. This research aimed to study clay mineralogy and chemical composition of Lopburi clay in Thailand. Physical and chemical characterizations of Lopburi clay before and after calcination were investigated using X-Ray Diffraction, Qualitative X-Ray Diffraction (QXRD), Scanning Electron Microscopy (SEM) and X-Ray Fluorescene. The results showed that Lopburi clay main major oxides aed silicon dioxide (SiO2), alumina oxide (Al2O3) and iron oxide (Fe2O3) furthermore, Lopburi clay is kaolinite clay.
Application of pivoting adversarial networks in search for four top quark production in CMS
Authors: Wachirapusitanand V , Srimanobhas N , Blekman F 
Published: December 2019

Abstract
One burden of high energy physics data analysis is uncertainty within the measurement, both systematically and statistically. Even with sophisticated neural network techniques that are used to assist in high energy physics measurements, the resulting measurement may suffer from both types of uncertainties. Fortunately, most types of systematic uncertainties are based on knowledge from information such as theoretical assumptions, for which the range and behaviour are known. It has been proposed to mitigate such systematic uncertainties by using a new type of neural network called adversarial neural network (ANN) that would make the discriminator less sensitive to these uncertainties, but this has not yet been demonstrated in a real-life LHC analysis. This work investigates ANNs using as a benchmark the search for the production of four top quarks, an extremely rare physics process at the LHC and one of the important processes that can prove or disprove the Standard Model. The search for four top quarks in some cases is sensitive to large systematic uncertainties. The expected cross section upper limit for four top quark production is calculated using traditional neural networks and adversarial neural networks based on simulated proton-proton collisions within the Compact Muon Solenoid detector within Large Hadron Collider, and are compared to existing results. The improvement and further considerations to the search for rare processes at the LHC will be discussed.
Development of the greenhouse solar dryer for germinated parboiled Thunya-Sirin glutinous rice dried
Authors: Sarobol Mali , Teeta Suminya , Pharanat Wanida , Guson Watthanawong , Chaimatchim Supasit , Sarobol Preedok 
Published: December 2019

Abstract
The objective of this work was to describe the development of greenhouse solar dryer for germinated parboiled Thunya-Sirin glutinous riced ried. Parameters studied were germinated parboiled Thunya-Sirin glutinous rice, drying temperatures at 40°C. The drying process was carried out until the final moisture content was below 8 % (dry basis, d.b.). The moisture ratio, the color difference (ΔE) and physical propertiesof the product were determined. The results revealed that the greenhouse solar dryer showed the drying time for 5 hr. The greenhouse solar dryer maintains color and nutrients of rice, this technique better prices, higher affordability level, better payback power of farmers. Therefore, drying germinated parboiled Thunya-Siring lutinous rice using greenhouse solar dryer is more suitable than unsanitary.
Influence of hydrothermal time on structural properties of ZnO nanorods grown on spin-coated ZnO seeding layer
Authors: Mahamu Hambalee , Srinonate Wuttichai , Pecharapa Wisanu 
Published: December 2019

Abstract
Most of the recent nanodevices are fabricated by using high-efficiency deposition methods and patterned via high-resolution lithography. However, there are drawbacks for the methods including small-scale product, high cost consumption, and multi-step processes. To reduce these disadvantages, this work focuses on the usage of sol-gel synthesis and spin coating method to fabricate ZnO seed layer onto glass substrates. All of substrates were patterned by conventional UV photolithography at exposure time of 7 seconds, then ZnO nanorods were hydrothermally grown at 90°C for 2, 3, and 4 hours, respectively. All of samples were characterised by scanning electron microscope (SEM) which revealed the sharp and smooth tip hexagonal structure at different hydrothermal time. The evolution of the nanorods’ growth was investigated, and the diameters were estimated. Moreover, crystal quality was revealed by x-ray diffractograms. It was clear that the domination of c-axis plane occurred for all the samples associates with the crystallinity of the nanostructures. This indicated escalating of the non-monodirectional growth plane in increasing nanorods’ diameter as the nanorods are polycrystal. Furthermore, the optical properties of the samples were observed by UV-visible spectroscopy and photoluminescence technique (PL). UV-visible spectroscopic data showed diminishing of the energy band gap when the diameter grew up. PL data revealed the reduction of the intensity ratio at near-band-edge peak versus oxygen vacancy peak. This information pointed to the decreasing trend of the crystal quality with escalating growth time.
Matter-wave interferometry from near-field to far-field diffraction
Authors: Srisuphaphon S , Temnuch W , Buathong S , Deachapunya S 
Published: December 2019

Abstract
A simplified explanation of near-field and far-field diffraction with matter-wave is described using the path integral formulation. Our approach is demonstrated with cold Rb atoms in single-, double-, and multiple-slit configurations. With the use of an initial wave for the particle beam that corresponds to the slit opening and the number of slits, the transition from near-field to far-field diffraction can also be explored. Identifying the boundary between near-field and far-field diffraction is the first priority for implementing matter-wave diffraction experiments.
Numerical investigation of effect of central gap’s width and length of magnetic material on heat transfer and pressure loss of water flow using computational fluid dynamics
Authors: Thongjamroon J , Techapiesancharoenkij R , Chaiworapuek W 
Published: December 2019

Abstract
This research studied heat transfer and pressure loss due to water flow through the compressed magnetic powder using Computational Fluid Dynamics. The Reynolds number was determined, ranging from 3, 000 to 7, 000, corresponding to the working flow-rate range in the magnetic refrigeration system. To model the compressed magnetic powder as porous media, the porosity and permeability, calculated from experimental results, were 0.1684 and 3.3076×10-10 m2, respectively. In this research, porous media which have constant heat flux, were in a cylindrical shape. They had a diameter of 0.012 m and 0.05, 0.10 and 0.15 m in length. The width of the central gap was 0.001, 0.002, 0.003, 0.004 and 0.005 m. The numerical results showed that the Nusselt number and the friction factor increased when the width decreased and the length increased. The maximum friction factor and the Nusselt number were 27.85 and 16.83, respectively at 0.001 m in width and 0.15 m in length under the Reynolds number of 3, 000. However, the highest thermal performance was 1.91 at 0.004 m in width and 0.15 m in length under the Reynolds number of 7, 000. The results obtained in this research could be utilized for the geometric design of magnetic material for the magnetic refrigeration system in the future.
The evolution of stellar and dark matter density in EAGLE brightest cluster galaxies
Authors: Tangpakonsab Parinya , Muanwong Orrarujee 
Published: December 2019

Abstract
We use the EAGLE (Evolution and Assembly GaLaxies and their Environments) simulations, with the 50 co-moving Mpc a side box, with and without the effect of active galactic nuclei (AGN) to study dark matter distribution and stellar density in central galaxies. The simulations allow us to study cosmological structures at various redshifts which are chosen at 0, 0.27 and 0.87. We study the brightest cluster galaxy (BCG) in the largest galaxy cluster at these redshifts. The dark matter profile of the galaxy in the simulation with AGN exhibits a flat core, while its counterpart in the simulation without AGN is cuspy at all redshifts. The stellar density in the galaxy resembles the corresponding dark matter profile at all radii. At outer radii, the stellar density profile in the simulation with AGN changes dramatically from high to low redshift. We conclude that the energetic process of AGN in the simulation can effect both the stellar and dark matter components in central galaxies. As the box size is relatively small and the result is based on only central galaxies of small clusters, the study does not cover a wide dynamic range. The baryonic feedback effect on dark matter needs to be further explored on larger scales for cosmologists to correctly constrain cosmological parameters.