bluuebunny/crossref_metadata_2025 huggingface dataset:
Genetic variation of DNA methyltransferase-3A contributes to protection against persistent MRSA bacteremia in patients
Authors: Mba Medie Felix , Sharma-Kuinkel Batu K. , Ruffin Felicia , Chan Liana C. , Rossetti Maura , Chang Yu-Ling , Park Lawrence P. , Bayer Arnold S. , Filler Scott G. , Ahn Richard , Reed Elaine F. , Gjertson David , Yeaman Michael R. , Fowler Vance G. ,   the MRSA Systems Immunobiology Group, Bayer Arnold S. , Chan Liana C. , Chang Yu-Ling , Filler Scott G. , Fowler Vance G. , Gjertson David , Hoffmann Alexander , Medie Felix Mba , Mikkaichi Tsuyoshi , Mitchell Simon , Reed Elaine F. , Rossetti Maura , Ruffin Felicia , Qin Yan , Sharma-Kuinkel Batu K. , Sheu Katherine , Thaden Joshua , Waring Alan J. , Xiong Yan Q. , Zhing Ying , Yeaman Michael R.
Published: September 2019

The role of the host in development of persistent methicillin-resistantStaphylococcus aureus(MRSA) bacteremia is not well understood. A cohort of prospectively enrolled patients with persistent methicillin-resistantS. aureusbacteremia (PB) and resolving methicillin-resistantS. aureusbacteremia (RB) matched by sex, age, race, hemodialysis status, diabetes mellitus, and presence of implantable medical device was studied to gain insights into this question. One heterozygous g.25498283A > C polymorphism located in theDNMT3Aintronic region of chromosome 2p with no impact in messenger RNA (mRNA) expression was more common in RB (21 of 34, 61.8%) than PB (3 of 34, 8.8%) patients (P= 7.8 × 10−6). Patients with MRSA bacteremia and g.25498283A > C genotype exhibited significantly higher levels of methylation in gene-regulatory CpG island regions (Δmethylation = 4.1%,P< 0.0001) and significantly lower serum levels of interleukin-10 (IL-10) than patients with MRSA bacteremia withoutDNMT3Amutation (A/C: 9.7038 pg/mL vs. A/A: 52.9898 pg/mL;P= 0.0042). Expression ofDNMT3Awas significantly suppressed in patients withS. aureusbacteremia and inS. aureus-challenged primary human macrophages. Small interfering RNA (siRNA) silencing ofDNMT3Aexpression in human macrophages caused increased IL-10 response uponS. aureusstimulation. Treating macrophages with methylation inhibitor 5-Aza-2′-deoxycytidine resulted in increased levels of IL-10 when challenged withS. aureus. In the murine sepsis model, methylation inhibition increased susceptibility toS. aureus. These findings indicate that g.25498283A > C genotype withinDNMT3Acontributes to increased capacity to resolve MRSA bacteremia, potentially through a mechanism involving increased methylation of gene-regulatory regions and reduced levels of antiinflammatory cytokine IL-10.
Cross-language effects of phonological and orthographic similarity in cognate word recognition
Authors: Carrasco-Ortiz Haydee , Amengual Mark , Gries Stefan Th.
Published: September 2019

This study investigated the extent to which phonological and orthographic overlap between the two languages of
bilinguals predicts word processing abilities in their dominant and non-dominant languages. Forty-four English-dominant L1
English-L2 Spanish speakers and Spanish-dominant Spanish heritage speakers performed a lexical decision task while reading words
in English and Spanish. We calculated orthographic and phonological similarity of cognate and noncognate words using the
Levenshtein distance measure. Results showed that both bilingual groups benefited from orthographic similarity when reading
Spanish and English words, whereas a facilitative effect was restricted to Spanish words that shared phonology across languages.
These findings suggest a different contribution of phonological and orthographic similarity in bilingual word recognition,
independently of language dominance.
Selection, processing, properties and applications of ultra-high temperature ceramic matrix composites, UHTCMCs – a review
Authors: Binner Jon , Porter Matt , Baker Ben , Zou Ji , Venkatachalam Vinothini , Diaz Virtudes Rubio , D'Angio Andrea , Ramanujam Prabhu , Zhang Tailin , Murthy T. S. R. C.
Published: September 2019

Composites are, in general, a rapidly evolving and growing technical field with a very wide range of applications across the aerospace, defence, energy, medical and transport sectors as a result of their superior mechanical and physical properties. Ultra-high temperature ceramic matrix composites, UHTCMCs, are a new subfield within the wider grouping of CMCs that offer applications in rocket and hypersonic vehicle components, particularly nozzles, leading edges and engine components. The design and development of structural materials for use in oxidising and rapid heating environments at temperatures above 1600°C is therefore of both great scientific and engineering importance. UHTC materials are typically considered to be the carbides, nitrides, and borides of the transition metals, but the Group IV compounds (Zr, Hf & Ti) plus TaC are generally considered to be the main focus of research due to the superior melting temperatures and stable high-melting temperature oxide that forms in situ. This review presents the selection, processing, properties, applications, outlook and future directions of UHTCMCs.
Microglia: Same same, but different
Authors: Kierdorf Katrin , Prinz Marco
Published: September 2019

Microglial identity in the central nervous system (CNS) is dependent on colony stimulating factor 1 receptor (CSF-1R) signaling and its ligands IL-34 and colony stimulating factor 1 (CSF-1). In this issue of JEM, Kana et al. (https://doi.org/10.1084/jem.20182037) make the important discovery that CSF-1, but not IL-34, orchestrates cerebellar microglial homeostasis in mice, and its deficiency resulted in severe cerebellar dysfunctions accompanied by defects in motor function and social behavior.
GULFMET M.M-S1: Comparison of mass standards in multiples and sub-multiples of the kilogram
Authors: Kaçmaz Sevda , Al-Azemi Amal , Mitsas Christos , Almusawi Kazim , Alyousefi Rayan , Jattal Nasser , Sultan Nabeel Jawad
Published: September 2019

In order to show metrological equivalence in mass standards calibration among National Metrology Institutes (NMIs) of member countries of the "Gulf Association for Metrology" (GULFMET), the first organized supplementary comparison (SC) of mass standards have been carried out under the auspices of the GULFMET. This supplementary comparison of 10 kg, 500 g, 20 g, 2 g and 100 mg stainless steel mass standards was based on the decision of the GULFMET meeting held in 2013. TÜBİTAK-UME (Turkey) acted as pilot laboratory. In this region only two NMIs have the CIPM-MRA signature. These NMIs are SASO-NMCC (Saudi Arabia) and EMI (Abu Dhabi). Therefore, the reference values were calculated with the weighted mean method using these two participating laboratories. Concerning the weight of 100 mg, the weight has not been evaluated in this comparison because the travelling standard was mixed-up at some point during the artefact circulation. The results of EMI and SASO-NMCC are consistent with the reference values within their expanded uncertainties with the coverage factor, k = 2.

KEY WORDS FOR SEARCH

reference value, travelling standard, weighted mean method and metrological equivalence

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.

The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
APMP Key Comparison of Gauge Pressure from 0.4 MPa to 4 MPa
Authors: Choi In-Mook , Woo Sam-Yong , Jin Yue , Li Yanhua
Published: September 2019

This report describes the results of a key comparison of pneumatic pressure standards between korea research institute of standards and science (KRISS) and national institute of metrology, china (NIM) in order to determine their degrees of equivalence at pressures in the range 0.4 mpa to 4 mpa in gauge pressure. This bilateral comparison was carried out from aug. 2012 to nov. 2012 within the framework of the asia pacific metrology programme (APMP). The pilot laboratory was kriss. The degrees of equivalence in this comparison were transferred to the corresponding cc key comparison, ccm.p-k1.c through the results of apmp.m.p-k1.c, in which kriss participated.

Both of the participating institutes used pneumatic pressure balances as their pressure standards. The same piston-cylinder assembly (PCA) as one used for both pressure standards was used as a transfer standard (TS). The TS was calibrated at kriss before and after the measurement at nim. The difference was used for the characterization of TS.

This reports shows that NIM results are equivalent to the CCM key comparison results within the claimed uncertainty.

KEY WORDS FOR SEARCH

PRESSURE, GAUGE PRESSURE, KEY COMPARISON, PRESSURE BALANCE, PISTON-CYLINDER ASSEMBLY

Main text

To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.

The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Thermodynamics Properties of Confined Particles on Noncommutative Plane
Authors: Houça Rachid , Jellal Ahmed
Published: September 2019

We consider a system of N particles living on the noncommutative plane in the presence of a confining potential and study its thermodynamics properties. Indeed, after calculating the partition function, we determine the corresponding internal energy and heat capacity where different corrections are obtained. In analogy with the magnetic field case, we define an effective magnetization and study its susceptibility in terms of the noncommutative parameter θ. By introducing the chemical potential, we investigate the Bose-Einstein condensation for the present system. Different limiting cases related to the temperature and θ will be analyzed as well as some numerical illustration will be presented.
Dynamical Analysis and Exact Solutions of a New (2+1)-Dimensional Generalized Boussinesq Model Equation for Nonlinear Rossby Waves*
Authors: Liu Quan-Sheng , Zhang Zai-Yun , Zhang Rui-Gang , Huang Chuang-Xia
Published: September 2019

In this paper, we study the higher dimensional nonlinear Rossby waves under the generalized beta effect. Using methods of the multiple scales and weak nonlinear perturbation expansions [Q. S. Liu, et al., Phys. Lett. A 383 (2019) 514], we derive a new (2+1)-dimensional generalized Boussinesq equation from the barotropic potential vorticity equation. Based on bifurcation theory of planar dynamical systems and the qualitative theory of ordinary differential equations, the dynamical analysis and exact traveling wave solutions of the new generalized Boussinesq equation are obtained. Moreover, we provide the numerical simulations of these exact solutions under some conditions of all parameters. The numerical results show that these traveling wave solutions are all the Rossby solitary waves.
DKP Equation with Energy Dependent Potentials
Authors: Langueur O. , Merad M. , Hamil B.
Published: September 2019

In this work, we study the DKP equation subjected to the action of combined vector plus scalar energy depend on potentials in (1+1) dimensions space-time. The conditions of normalisation and continuity equation are calculated. The eigenfunctions and the corresponding eigenvalues are then determined. A numerical study is presented and the energy graphs for some values of the energy parameter are plotted.
Coherence of Superposition States*
Authors: Yuwen Shan-Shan , Shao Lian-He , Xi Zheng-Jun
Published: September 2019

We find tight upper bound on the coherence of a superposition of two states in terms of the coherence of the two states constituting the superposition with l
1-norm of coherence. Our upper bound is tighter than the one presented by Liu, et al. [Quantum Inf. Process. 15 (2016) 4209.] We also generalize the results to the case that the superposition is constituted with more than two states in high dimension, and we give the corresponding upper bounds.
Exact Solution for Non-Markovian Master Equation Using Hyper-operator Approach
Authors: Fu Hong-Chen , Gong Zhi-Rui
Published: September 2019

Non-Markovian master equation of Harmonic oscillator and two-level systems are investigated using the hyper-operator approach. Exact solution of time evolution operator of Harmonic oscillator is obtained exactly. For two-level system the time evolution operator is exactly found and coefficients satisfy ordinary differential equation.
A Statistical Mechanical Analysis on the Bound State Solution of an Energy-Dependent Deformed Hulthén Potential Energy*
Authors: Lütfüoğlu B. C. , Ikot A. N. , Okorie U. S. , Ngiangia A. T.
Published: September 2019

In this article, we investigate the bound state solution of the Klein Gordon equation under mixed vector and scalar coupling of an energy-dependent deformed Hulthén potential in D dimensions. We obtain a transcendental equation after we impose the boundary conditions. We calculate energy spectra in four different limits and in arbitrary dimension via the Newton-Raphson method. Then, we use a statistical method, namely canonical partition function, and discuss the thermodynamic properties of the system in a comprehensive way. We find out that some of the thermodynamic properties overlap with each other, some of them do not.
Effective Correlation of Two Holes in a Semimagnetic Quantum Well Wire: Influence of Shape of Confining Potential on Coulomb Interaction*
Authors: Kalpana P. , Jayakumar K.
Published: September 2019

The hole-hole interaction

(

E

hh

)

has been considered in a

CdTe

/

Cd

1
−
x

Mn
x
Te

Semimagnetic Quantum Well Wire (SQWW). The influence of the shape of the confining potential like square well and parabolic well type on the binding energy of an acceptor impurity with two holes and their Coulomb interaction between them has been studied for various impurity locations. Magnetic field has been used as a probe to understand the carrier-carrier correlation in such Quasi 1-Dimensional QWW since it alters the strength of the confining potential tremendously. In order to show the significance of the correlation between the two holes, the calculations have been done with and without including the correlation effect in the ground state wavefunction of the hyderogenic acceptor impurity and the results have been compared. The expectation value of the Hamiltonian,

H

, is minimized variationaly in the effective mass approximation through which

(

E

hh

)

has been obtained.
Increased Cellulose Levels in Organosolv Pretreatment Process in Bioethanol Production
Authors: Saisa  , Kasturi  , Husin Husni , Mahidin
Published: September 2019

Bioethanol is one type of biofuel that is present as an alternative fuel that is more environmentally friendly and produced from starch-containing foods such as oil palm fronds (PKS). Some methods of processing lignocellulose materials for the manufacture of bioethanol such as organosolv pretreatment which is a key process and determine the next stage, namely hydrolysis, and fermentation in the manufacture of bioethanol. The aim of the study was to extract lignin and improve the accessibility of cellulose. The research method in this study was influenced by variables used, namely operating time (60; 120; 180 minutes), ethanol concentration (35; 55; 75% v/v), operating temperature (100; 120; 150°C), size of coconut midrib 250 mesh palm oil and 1% sulfuric acid concentration (as a catalyst). Research shows that, successfully reducing lignin levels by 3.4% and increasing cellulose levels by 15.11%. Before the treatment of organosolv pretreatment on oil palm fronds, the composition of lignin was 19.8% and 34.3% cellulose content. After treatment of organosolv pretreatment in oil palm fronds, lignin levels became 16.4% and 49.14% cellulose levels. The optimum value is found at 75% ethanol concentration with an operating time of 180 minutes.
Antioxidant Activity From SyzygiumCumini (L.) Skeels
Authors: Muttakin  , Zulfajri Muhammad , Mariati
Published: September 2019

Jamblang (Syzygiumcumini (L.) skeels) is a local Indonesian plant that has many benefits but is not cultivated and utilized. The part of jamlang which has a lot of benefits is jamblang fruit peel. Some of the compounds contained in the jamblang fruit peel include high antioxidants. This study was conducted to determine the antioxidant activity of jamblang (Syzygiumcumini (L.) skeels) rind. Extraction was carried out using maceration method with 96% ethanol solvent, and separated by extract with solvent using a rotary evaporator. Extracts obtained were tested for secondary metabolites and flavonoid positive. Quantitative antioxidant activity testing was measured using a UV-VIS spectrophotometer at a wavelength of 516 nm with standard IC50 and vitamin C values used as a comparison. The results of measurements using UV-VIS spectrophotometer obtained IC50 values of jamblang rind extract and vitamin C were 4.33 ppm and 7.53 ppm respectively. Based on the IC50 value, it can be concluded that there is a very strong antioxidant activity in the jamblang fruit peel.
Vertices Coloring Technique Using Graph Methods For Determining Minimal Map Colors
Authors: Azizah Nuril Lutvi , Ariyanti Novia
Published: September 2019

Coloring vertices is to give color the vertices of a graph so that no two neighboring nodes are of the same colors. The minimal number of colors used to color vertices is called the graph chromatic number. The problem of coloring vertices in this study is applied on the map of the district of Sidoarjo. It is also to determine the minimal colors on the Sidoarjo region map so that the boundary between the sub-districts in Sidoarjo becomes clearer with minimal colors. In this research, First Graph is assumed to be a complete graph and Second Graph is the path, while nodes or vertices are the sub-districts and the edge of the sub-district is assumed to be neighboring sub-districts between the districts with each other. The result of the analysis shows that the join of two graphs produces a wheel graph, which has a maximum chromatic number of 4 pieces of color for the odd result and 3 pieces of color for even result. Thus, the map of the original Sidoarjo region has more than 9 colors can be given the minimum color of 4 colors can be distinguished between the district one with other district.
Lecturers’ methods in teaching speaking at the university of Muhammadiyah Aceh
Authors: Netta Ayuna , Safura Siti
Published: September 2019

This research aimed at investigating; 1) what methods were applied by lecturers in teaching speaking; and 2) how were the methods applied in the classroom. This study employed qualitative research and was descriptive in nature. The respondent of this study were two English lecturers who taught speaking subject at the University of Muhammadiyah Aceh. In collecting the data, the researcher used two kinds of instrument; observation and interview. The data were analyzed using Miles and Huberman technique which proposed three simultaneous flows of action: a) data reduction; b) data display; and c) verification/conclusion. The result shows that; 1) the most of the methods applied in teaching speaking were communicative language teaching and direct method; and 2) the implementing method in teaching speaking consisted of material presentation by the lecturer and classroom discussion.
Identification of Banana Quality (Musa paradisiaca Var. Sapientum L.) Through the Using of Coconut Shell Charcoal and Potassium Permanganat as Absorber
Authors: Sholihati
Published: September 2019

One of the most frequently encountered problems in handling bananas is the ease of it characteristic to decay so they cannot be stored longer. Thus a technology is needed to increase the shelf life of banana. The use an absorber from coconut shell charcoal which is applied with potassium permanganate is a method that can be used. In this study the effectiveness of the absorber was tested using gas chromatography. The results obtained show us that the ethylene concentration can be pushed by the addition the number of the absorber. The treatment carried out is by compare it at two temperatures. Where at a temperature of 13 0C, the ethylene concentration is about 102.78 ppm for an absorber of 10 g. At 20 g it is 95.13 ppm. At 30 g it is 64.23 ppm and at 40 g is 65.85 ppm. At a temperature of 28 0C in the 8th hour the ethylene concentration was 104.30 ppm for 10 g absorber. At 20 g, it is 101.12 ppm. At 30 g is 89.22 ppm. At 40 g, it is 64.20 ppm. Absorber treatment affects ethylene production, and slows the physical and chemical processes of Raja banana which is characterized by green colouruntil the end of storage time and retained hardness, high starch content, low sugar content and small amount weight loss. generally, the treatment of ethylene potassium absorbent material greatly influences the maturation effect, by suppressing ethylene production and maintains the green color, texture and aroma of Raja banana within 15 days at 28 0C and 45 days at 13 0C.
Physical characteristic of probiotic ice cream substituted by encapsulated lactic acid bacteria (LAB) with variety of aging time
Authors: Muhardina V , Sari PM , Aisyah Y , Haryani S
Published: September 2019

Probiotic ice cream is one of methods in improving benefit and functional value of common ice cream. This research studies about the effect of probiotic added in form of capsules and maturation (aging) time on the physical quality and sensory acceptability. The article presents data of overrun, melting time, viscosity, and panelists’ preferences in terms of probiotic ice cream characteristics. The data is calculated statistically by using ANOVA. The results show that aging time determines most of evaluated physical characteristics, while inserting probiotic capsules tends to affect overrun specifically. Combination between a moderate percentage of probiotic capsules and aging time, 5% and 18 hours respectively, generates good and preferred quality of probiotic ice cream in all evaluated characteristics.
Local Soybean (Glycine max (L)) Stomatas’ Morphological And Anatomic Response In 3rd Vegetation Stage Towards Light Intensity Sress
Authors: Miftahurrohmat A , Dewi F D , Sutarman
Published: September 2019

The aim of this research is to know the morphological and anatomic stomatas’s response of local soybean varieties in a 3rd vegetative stage towards light intensity stress. The experiments were arranged in a single factor Completely Randomized Design (CRD) with the treatment consisting of: without shade and with shade of 50, 60, 70, and 80% which repeated three times. The results showed that light intensity affects stomata length, diameter, and number of stomatal. The use of 50% shade which produces a daily average light intensity of 18,360 lux shows the number, length, and diameter of stomata that are not different from the controls. This local soybean cultivation can be done in shade intensity 50-70%.
Calcium fortification of dried noodle substituted by jackfruit seed (Artocarpusheterophyllus) flour with broccoly (Brassica oleracea var.) pasta
Authors: Yulia Ruka , Yuslinaini  , Wildanawati
Published: September 2019

Dried noodle has became an alternative food that is cheap to be obtained and easy to be served. Dried noodles sold in market had been not enough balanced for healthbecause it is still lack of micronutrients. Fortification of dried noodles with broccoli pasta can enhance micronutrients, especially calcium. The proportion of wheat flour in making dried noodle also can be reduced by substituted with jackfruit seed flour which is still contain protein. This study aims to determine effect of ratio wheat flour:jackfruit seed flour (N) andbroccoli pasta concentration (B) on calcium, water content, water absorption capacity and evoluation sensory of dried noodles. The variables observed in this study were N1(95%-5%), N2 (85-15%), N3 (75%-25%) and B1 (10%), B2 (20%), (30%). From the results, the highest calcium contain was 816,50 mgat N1B3, the lowest water content was 8,39 % at N1B1, the highest water absorption capacity was 394.16% at N1B2. From analysis of variance of organoleptics test, both of variables(NB) had significant effect on taste, flavour and texture. While, it was only ratio wheat flour: jackfruit seed flour that was very significant effect on color of dried noodles.
Addition of Serbitol in Biodegradable Plastic Cateristics from Janeng
Authors: Amni Chairul , Ismet  , Aprilia Sri , Mariana
Published: September 2019

The manufacture of biodegradable plastic film has been carried out using starch janeng which functions as the main raw material, water that functions as a solvent, and serbitol which functions as a plasticizer. Janeng is chosen as a raw material for making plastic because in addition to being easy to obtain and low in price, its use is still very minimal when compared to other plants which are the staple food of the community, such as rice, corn, potatoes, wheat, and so on. This study aims to make plastic that can reduce the environmental impact by looking at the influence of the plasticizer used on the mechanical properties of the film, the absorption capacity of water, and the decomposition rate of the plastic.Theplasticizerusedissorbitolwith a weight concentration of 1 ml, 3 ml, and 6 ml of the total weight, and the weight ratio of sago starch and water is 1 g, 3 g, and 6 g. Testing of mechanical properties (tensile strength and elongation) using Universal Testing Machines Electronic System, testing water absorption is done by immersing the film in water for 24 hours, and decomposition rate testing is done by burying the film into the ground. The results showed that the highest tensile strength values were obtained at a concentration of 3 ml of serbitol with a weight ratio of 3 g of starch with a yield of 3.2 kgf/cm 2, whereas the highest percentage of elongation was obtained at a concentration of 6 ml of serbitolwith a ratio of weight of 1 g of starch to yield 3, 9%. The lowest water absorption was obtained in the composition of 1 ml of serbitol with a weight ratio of 1 gram of starch, which was 2.7%, and the decomposition process occurred for 27 to 33 days.
Fabrication of New Thermoelectric Block Floor for Power generator
Authors: Inthachaia S. , Prapaporn W. , Singsoog K. , Seetawan T.
Published: September 2019

This was the study and designing of the thermoelectric block floor for power generator that are normally used for footpaths, traffic islands, and gardening together with solar radiation heat. Physically, this thermoelectric block is an octagonal block with a size of 19.8 × 19.8 × 6 cm. The block was composed of two layers. The upper layer received the solar radiation and produced the thermoelectric module heat by synthesizing thermoelectric materials and creating 4 thermoelectric modules from Bi2Te3 for one composition set where an aluminum sheet was used for cooling. Additionally, the lower layer was exposed to the ground with low temperature to produce the usable electric power. The efficiency of this electric power was tested with the solar radiation heat of the thermoelectric block floor and by the Thai Industrial Standards (TIS) 827-2531: Interlocking Concrete Paving Blocks. After installing the thermoelectric block floor at the Faculty of Industrial Technology, Sakon Nakhon Rajabhat University, it was found that the block was usable as defined by TIS 827-2531: Interlocking Concrete Paving Blocks; meanwhile, the test on the electric power of the thermoelectric block floor indicated that the maximum electric potential difference was 73.91 mV where the temperature difference was 6.2 K measured from the surface of the block. In addition, the maximum electric power was 88.25 mV where the solar radiation was 1124.5 W m-2. Notably, this electric power of the thermoelectric block floor was directly variable following the solar radiation value. However, if used for power generator or as an alternative energy for engineering activities, the thermoelectric block should be properly designed and developed to produce higher level of electric power and more of them should be created for both series circuit and parallel circuit.
Enhancement of Emission Intensity in Dy3+-Doped ZnO/ZnF2 Phosphoborate Glasses for W-LED Materials
Authors: Meejitpaisan P , Wongwan W , Kaewkhao J
Published: September 2019

Presently, white light emitting diodes (W-LEDs) were be used to substitute for conventional incandescent and fluorescent lamps due to their advantages; thus, it gets attention to create Dy3+-doped zinc phosphoborate glasses for enhancing better lightness. In this research, the replacing of ZnO by ZnF2 in 49B2O3:30P2O5:(20-x)ZnO:xZnF2:1Dy2O3 glasses, 0 ≤ × ≤ 20 mol% were prepared by melt quenching method and investigated through optical absorption and photoluminescence properties. The absorption results can be used for calculating the Judd-Ofelt (JO) intensity parameters (Ωλ, λ = 2, 4 and 6) and led to predicting the stimulated emission in present glasses. The trend of JO parameters is found to be Ω2 > Ω4 > Ω6 for all glasses. Nevertheless, replacing of ZnF2 does not affect position and intensity of optical absorption of Dy3+-doped glasses, whereas the observed blue (481 nm), yellow (573 nm) and red (662 and 752 nm) emission intensities of photoluminescence spectra rise with ZnF2 contents; the emission intensity at 573 nm for 20ZnF2 show the highest and was higher than 20ZnO around 1.6 times. The emission color of Dy3+-doped zinc phosphoborate glasses has been evaluated with CIE 1931 chromaticity diagram. The results revealed that all glasses emit white light. Hence, these glasses may be suitable candidate for using in W-LED and lighting materials.
Structural, optical and electrical properties of (CdS)1-x (ZnTe)x solid solution thin films prepared by vacuum thermal evaporation method
Authors: Thueman D , Gaewdang T
Published: September 2019

The II-VI compounds and their solid solutions are promising source for various types of thin film devices such as thin film transistors, optoelectronic devices and solar cells. The formation of (CdS)1−x(ZnTe)x layer by interdiffusion of CdS and ZnTe during the fabrication of CdS/ZnTe heterojunction thin film was previous reported. This layer is thought to be important because it relieves strain at the CdS/ZnTe interface that would otherwise exist due to the excess 10 % lattice mismatch between the two materials. Therefore, it is essential to have a full understanding of the physical properties of (CdS)1−x(ZnTe)x alloy thin films. In this work, (CdS)1−x(ZnTe)x thin films in the entire composition range (0≤x≤1.0) were prepared by vacuum thermal evaporation on glass substrate using mixed powders of high purity of CdS and ZnTe compounds as the precursor. XRD revealed that the films exhibited a hexagonal structure with the preferred orientation of (002) plane when x ≤ 0.2. However, when x ≥ 0.8, they belonged to a cubic structure with the preferred orientation of (111) plane. For the composition 0.4 ≤ x ≤0.6, the hexagonal and cubic phases coexisted in the system and the films became less preferentially oriented. SEM and EDS were used to study the surface morphology and elemental composition of the samples. The crystallite size of the as-deposited films in the range 88–361 nm was observed by AFM image. The FTIR transmission spectra in the range 400−1,000 cm−1 revealed the characteristics of Cd-S and Zn-Te vibrational modes. Optical properties of the films were performed with UV-Vis spectrophotometer in the wavelength range 400−1,000 nm. The variation of direct energy gap with composition (x) was in good agreement with the quadratic form, giving an upward bowing parameter (b) of 1.23 eV. Electrical properties of the films were evaluated by resistivity and Hall effect measurements in the van der Pauw configuration. From transient photoconductivity measurement, the decay current data were better fitted with multiple exponential functions resulting in the several slow decay times. Density of trap states corresponding to its decay time was also evaluated from the decay current data.
Physical, optical and gamma-ray shielding properties of BaO- La2O3-B2O3 and BaO-Na2O-B2O3 glass systems at 662 keV
Authors: Siengsanoh K , Hongtong W , Chaiphaksa W , Limkitjaroenporn P , Kaewkhao J
Published: September 2019

In this work, glasses with composition xBaO : 20La2O3: (80-x)B2O3 and xBaO : 20Na2O3: (80-x)B2O3 (where x= 15, 20,25 and 30 mol%) were prepared using melt-quenching method. Physical, optical and gamma-ray shielding properties were investigated and compared with theoretical calculations. 137Cs was used as γ-source for investigating experimental mass attenuation coefficient at 662 keV energy. The theoretical mass attenuation coefficient was calculated using WinXcom program. The density and the molar volume show increasing trend with increase in BaO concentration. Transmission spectra shows dissimilarity in their transmittance for BaO-Na2O-B2O3 and BaO-La2O3-B2O3 glasses. BaO-Na2O-B2O3 glasses show higher transmittance in the visible region than compared to BaO-La2O3-B2O3 glasses. Mass attenuation coefficients, Zeff show increasing trend whereas HVL at 662 keV show decreasing trend with increase in BaO concentration for these both these glasses. Theoretical and experimental mass attenuation results are in good agreement with each other. The synthesized glasses show potential use for radiation shielding material applications.
Improved Transparent Gas Sensor Properties of Cu-Doped SnO2 Films using O2 Plasma Treatment
Authors: Somjaijaroen N , Sakdanuphab R , Sakulkalavek A
Published: September 2019

Cu-doped SnO2 films were deposited on glass slide substrate using an RF magnetron sputtering method. The effects of O2 partial pressures in the deposition process and post O2 plasma treatment were assessed for optical and sensing properties. O2 partial pressures from 2% to 10% were assessed. Post-plasma treatment used a 15 mL/min O2 flow, 450 °C annealing temperature and 30 min treatment time. Optical transmission spectra showed that the films deposited at higher O2 partial pressures had higher transparency and increased band gaps from 3.08 to 3.78 eV. After O2 plasma treatment, the films showed better than optical transmission. However, when the O2 partial pressure increased to 10%, the optical transmission declined slightly because the film had higher surface roughness, smaller crystals and fewer oxygens in the parent rutile tetragonal cells, enhanced the sensor response at room temperature.
Robust throttle control of Hybrid Electric Vehicle
Authors: Tripathi Sandeep Kr. , Shrivastava Ashish , Jana K. C. , Agrawal Amit , Rai Amit
Published: September 2019

In recent past years, growing carbon emission caused by vehicle and scarcity of oil resources gives attention of all researchers to investigate low pollution, improved fuel economy type vehicle such as Hybrid Electric Vehicle (HEV). In this paper nonlinear hybrid electric vehicle speed control using different control techniques has been employed to improve the efficiency of vehicle by throttle position control. The controller like Proportional-Integral-Derivative (PID), Artificial intelligence based fuzzy controller, robust controller (H∞) and their comparative performance analysis has been done on the basis of rise time, settling time, and zero steady error in MATLAB-Simulink.
Sentiment Extraction and Analysis using Machine Learning Tools-Survey
Authors: Shaik Amjan , Sekhar Dey Niladri , Purnachand K. , Babu Ch. Madhu
Published: September 2019

Sentiment search is clearly abstract cornerstone and essential administer in identifying user’s importance preferences. To get the quality of the product, position in evaluations is precondition. Normally, if item’s studys express constructive idea, the produce perhaps with bigger rating to some populous qualification. By analyzing the user considerations, their sentiments suggest unique experts to some target user in agreement the user culture. LDA is truly a Bayesian approach represented particularly to create the unification of studies, topics and discussions. In this paper, we have discussed about various machine learning tools and techniques for the better understanding of the concepts and efficient processing of sentiments from the huge data sets.
Review of various Artificial Intelligence Techniques and its applications
Authors: Varshney Shivi , Jigyasu Rajvardhan , Sharma Amandeep , Mathew Lini
Published: September 2019

With the upgrading needs of automation and prediction requirements in the industries, automation for improving the quality of the product and prediction of the product cycle to make product more economical. Now a days the use of artificial intelligence techniques becoming crucial to apply in the industries which makes the products more reliable, robust and economical. This paper deals and explains the different techniques of artificial intelligence. Also covers the review of the different applications of these techniques in the industries. This paper covers the review of Artificial intelligence techniques applied in the different fields like civil engineering, biomedical engineering, mechanical engineering, electrical and electronics engineering and many more.
Analysis and design of solar photovoltaic systems and its applications by using different MPPT techniques
Authors: Kumar Pramod , Shrivastava Ashish
Published: September 2019

In this paper a 40KW solar photovoltaic design is presented and displaying the output curve with different parameters i.e. temperatures and irradiations. The different MPPT techniques are used and make comparison among these techniques by using solar PV modeling to get better results using in matlab simulation tool boxes. This paper is useful for solar PV modeling and power electronics converter design. The perturb and observe and incremental conductance technique is compared to get maximum output voltage, current and power of photovoltaic array and using feedback PI controller to regulate the output of different power electronic converters i.e. buck-boost and cuk converters. The comparative analysis confirms the best method by studying the performance.
Grid Connected-Photovoltaic System (GC-PVS): Issues and Challenges
Authors: Pratap Singh Bhuwan , Kumar Goyal Sunil , Ahmed Siddiqui Shahbaz
Published: September 2019

Smart grid is the key technology for an effective utilization of the Renewable Energy Sources (RES). The utilization of RES for the generation of electricity is increasingly gaining interest of researchers during the last decades. The main reason behind this is global incentivization, the increasing price of petroleum products, climate issues and deregulations in the energy market. As the Government of India, (MNRE i.e. Ministry of New & Renewable Energy) is targeting to generate 20000 MW power through grid-connected solar PVS by the year 2022 therefore, the main focus in this paper has been presented on power generation through grid-connected PVS. The emerging smart grid technology has enabled the grid-connected PVS as an evolving process in today’s world for electrical power generation. However, apart from so many advantages, there are several issues and challenges associated with the integration of PVS to the electric utility grid hence, the investigation to find out available possible solutions to overcome these issues becomes essential in order to enhance the performance of grid-connected PVS. The most severe constraint associated with this emerging technology is it high penetration level. If during low load conditions there is some mismatch found between the real power output and the load profile characteristics of PVS then it may result into large reverse power flow, high power losses or severe voltage violation. In this paper, several issues and challenges associated with the integration of solar PVS with the electric utility grid are presented.
Design of Read Circuitry for Nonlinear Smart Sensors
Authors: Ananthi S , Chaudhary Himanshu , Singh Kulwant
Published: September 2019

The purpose of this paper is comparative study, design and simulation of two stage, analog to digital convertor to convert the properly conditioned stepwise linearized analog output signal from a ratio metric NTC thermistor circuit. The design part consists of linearization of thermistor temperature- resistance characteristics in analog domain. A CMOS sample and hold circuit is used to bridge linearizing circuit in analog domain and the flash ADC circuit in digital domain. Ratio of the voltage is sensed rather than absolute voltage across the thermistor, as part of linearization. Further linearization is done in two stage flash ADC consisting of a reference voltage divider resistance, comparators, analog multiplexers and 8bit differential ADC. A graph is plotted between temperature and the corresponding resistance of NTC thermistor NTCLE100E10 [1], having a resistance of 10kΩ at 25°C. The graph is an exponential curve and it is linearized [2] around 50°C by drawing a curve between temperature and voltage ratio across a resistor connected in series to the thermistor. This curve is still nonlinear at extreme values of the considered range -20 °C to 100 °C. The full range is divided into four sub ranges and piecewise linearization is done simultaneously with analog to digital conversion. Analog and digital integrated circuits are generally low powered and the voltage limit is 5V. Thermistor is compatible in this range. A number of signal conditioning circuits are devised in the past. Here the linearizing steps involved in simple circuit elements and simple design. Signal conditioning of thermistor response has a number of design circuits already devised, still there is room for research to make it is small in size, low powered, high sensitivity and cost effective.
Generic IoT Platform for Analytics
Authors: Pradeep B , Balasubramani R
Published: September 2019

Internet, since its root has reclassified the manners by which the world collaborates today, countless devices speak with each other which make our life simple and thus improve this world a place to dwell. The Internet of Things (IoT) is the system of physical gadgets, vehicles, home machines and different things implanted with hardware, programming, sensors and network which empowers these objects to interface and trade information. Today the world has swung to a place where each and everything should be associated. This paper discusses, how a generic IoT platform has been developed to get the data from various sensors from agricultural lands and conversely control the devices from distant places using Internet. For e.g., a smart plug can help you save and monitor your energy consumption by showing energy statistics. Sensors fitted in agricultural lands has been chosen to test the quality of the IoT platform.
A proof of the first Kac–Weisfeiler conjecture in large characteristics
Authors: Martin Benjamin , Stewart David , Topley Lewis
Published: September 2019

In 1971, Kac and Weisfeiler made two influential conjectures describing the dimensions of simple modules of a restricted Lie algebra

g

\mathfrak {g}

. The first predicts the maximal dimension of simple

g

\mathfrak {g}

-modules and in this paper we apply the Lefschetz Principle and classical techniques from Lie theory to prove this conjecture for all restricted Lie subalgebras of

g
l

n

(
k
)

\mathfrak {gl}_n(k)

whenever

k
k

is an algebraically closed field of sufficiently large characteristic

p
p

(depending on

n
n

). As a consequence we deduce that the conjecture holds for the Lie algebra of an affine algebraic group scheme over any commutative ring, after specialising to an algebraically closed field of almost any characteristic.

In the appendix to this paper, written by Akaki Tikaradze, an alternative, short proof of the first Kac–Weisfeiler conjecture is given for the Lie algebra of a group scheme over a finitely generated ring

R
⊆

C

R \subseteq \mathbb {C}

, after base change to a field of large positive characteristic.
Predictors and Clinical Outcomes of Poor Platelet Recovery in Adult Dengue With Thrombocytopenia: A Multicenter, Prospective Study
Authors: Archuleta Sophia , Chia Po Ying , Wei Yuan , Syed-Omar Sharifah F , Low Jenny G , Oh Helen M , Fisher Dale , Ponnampalavanar Sasheela S L , Wijaya Limin , Kamarulzaman Adeeba , Lum Lucy C S , Tambyah Paul A , Leo Yee-Sin , Lye David C
Published: September 2019

Background

Platelet transfusion is common in dengue patients with thrombocytopenia. We previously showed in a randomized clinical trial that prophylactic platelet transfusion did not reduce clinical bleeding. In this study, we aimed to characterize the predictors and clinical outcomes of poor platelet recovery in transfused and nontransfused participants.

Methods

We analyzed patients from the Adult Dengue Platelet Study with laboratory-confirmed dengue with ≤20 000 platelets/μL and without persistent mild bleeding or any severe bleeding in a post hoc analysis. Poor platelet recovery was defined as a platelet count of ≤20 000/μL on Day 2. We recruited 372 participants from 5 acute care hospitals located in Singapore and Malaysia between 29 April 2010 and 9 December 2014. Of these, 188 were randomly assigned to the transfusion group and 184 to the control group.

Results

Of 360 patients, 158 had poor platelet recovery. Age, white cell count, and day of illness at study enrollment were significant predictors of poor platelet recovery after adjustment for baseline characteristics and platelet transfusion. Patients with poor platelet recovery had longer hospitalizations but no significant difference in other clinical outcomes, regardless of transfusion. We found a significant interaction between platelet recovery and transfusion; patients with poor platelet recovery were more likely to bleed if given a prophylactic platelet transfusion (odds ratio 2.34, 95% confidence interval 1.18–4.63).

Conclusions

Dengue patients with thrombocytopenia who were older or presented earlier and with lower white cell counts were more likely to have poor platelet recovery. In patients with poor platelet recovery, platelet transfusion does not improve outcomes and may actually increase the risk of bleeding. The mechanisms of poor platelet recovery need to be determined.

Clinical Trials Registration

NCT01030211.
RPGeNet v2.0: expanding the universe of retinal disease gene interactions network
Authors: Arenas-Galnares Rodrigo , Castillo-Lara Sergio , Toulis Vasileios , Boloc Daniel , Gonzàlez-Duarte Roser , Marfany Gemma , Abril Josep F
Published: September 2019

RPGeNet offers researchers a user-friendly queriable tool to visualize the interactome network of visual disorder genes, thus enabling the identification of new potential causative genes and the assignment of novel candidates to specific retinal or cellular pathways. This can be highly relevant for clinical applications as retinal dystrophies affect 1:3000 people worldwide, and the causative genes are still unknown for 30% of the patients. RPGeNet is a refined interaction network interface that limits its skeleton network to the shortest paths between each and every known causative gene of inherited syndromic and non-syndromic retinal dystrophies. RPGeNet integrates interaction information from STRING, BioGRID and PPaxe, along with retina-specific expression data and associated genetic variants, over a Cytoscape.js web interface. For the new version, RPGeNet v2.0, the database engine was migrated to Neo4j graph database manager, which speeds up the initial queries and can handle whole interactome data for new ways to query the network. Further, user facilities have been introduced as the capability of saving and restoring a researcher customized network layout or as novel features to facilitate navigation and data projection on the network explorer interface. Responsiveness has been further improved by transferring some functionality to the client side.