bluuebunny/crossref_metadata_2025_split huggingface dataset:
Formation of amines: hydrogenation of nitrile and isonitrile as selective routes in the interstellar medium
Authors: Nguyen T. , Fourré I. , Favre C. , Barois C. , Congiu E. , Baouche S. , Guillemin J.-C. , Ellinger Y. , Dulieu F. 
Published: May 2019

Context. Beyond NH3, only one primary alkylamine, CH3NH2, has been identified in the interstellar medium and the reason why is still not understood: its formation could occur in the gas phase or in icy environments.
Aims. To consider any possible difference between the formation of primary and secondary amines, we studied the hydrogenation processes of CH3CN and CH3NC, which would lead to the simple primary CH3CH2NH2 and secondary CH3NHCH3 amines, respectively.
Methods. Experimentally, the hydrogenation of CH3CN and CH3NC was carried out under ultra-high vacuum, using two beamlines to inject the nitrile/isonitrile and H onto substrate surfaces of gold or water ice. The reactions were monitored using infrared spectroscopy and the products were followed by mass spectrometry. Theoretically, the energetics of the hydrogenation paths were determined using the M06-2X functional after benchmarking against post Hartree–Fock procedures. Meanwhile, a survey of the high-mass star forming region W51/e2 has been performed.
Results. Following co-deposition of CH3CN and H, we show that these species do not react together between 10 and 60 K. For CH3NC we found that the hydrogenation process works all the way through the CH3NHCH3 end product; we also identified the CH3NCH2 intermediate together with side products, CH4 and HCN, showing that the isonitrile backbone is breaking. These results are consistent with the calculations of a high barrier on the first hydrogenation step for CH3CN and a lower barrier for CH3NC.
Conclusions. The formation of CH3CH2NH2 by hydrogenation of CH3CN appears rather unlikely in both the gas phase and ice environment whereas that of CH3NHCH3 is a clear possibility. The limiting factor appears to be the efficiency of the tunneling effect through the first activation barrier on the reaction paths. More surveys are required for further insight into the search for amines.
Seroprevalence and risk factors forNeospora caninuminfection in dogs in rural northeastern mainland China
Authors: Gao Xiang , Wang Hongbin 
Published: May 2019

AlthoughNeospora caninumis an important veterinary pathogen, veterinarians in various areas including in Mainland China lack a full understanding of neosporosis distribution in dog populations. This study aims to determine the emergence of anti-N. caninumantibodies in canine populations classified based on breeders, herdsmen, and huntsmen in northeast mainland China. In addition, the risk factors associated with seropositivity were explored. An indirect immunofluorescent antibody test (IFAT) was performed on canine serum to determine seroprevalence. Logistic regression models were used to collect and analyze individual and management data, in order to determine high-reliability predictors of seroprevalence as well as the level of anti-N. caninumantibodies. Among the 476 dogs tested, 95 (20%) were seropositive. Mixed breed (OR 1.53), former strays (OR 1.38), dogs living on cattle farms (OR 2.30), hunting dogs (OR 1.22) as well as raw meat feeding (OR 1.66) were correlated (p < 0.05) withN. caninuminfection. Interestingly, the seropositivity of dogs on cattle farms was higher (28%) than that of those (24.8%) living in breeding facilities (p < 0.05). A large number of seropositive dogs were found on cattle farms in the study region, suggesting horizontal transmission between dogs and cattle. Therefore, this source of infection should be studied further, and should be a strong consideration in differential diagnoses of dogs raised on cattle farms.
Emergency Repair of an Isolated Traumatic Avulsion of the Right Main Stem Bronchus in a 7-Year-Old Girl
Authors: König Tatjana Tamara , Wittenmeier Eva , Muensterer Oliver J. 
Published: May 2019

Introduction Isolated tracheobronchial injury after blunt trauma of the chest is rare. Because of the high elasticity of the chest in children, they occur mainly in the pediatric population.
Case Report We report a case of a 7-year-old girl who experienced complete avulsion of the right main bronchus at the level of the carina after a horse-riding accident. The patient presented with extensive emphysema of the upper chest, neck, and face and severe respiratory distress. Endotracheal intubation led to tension pneumothorax. After insertion of two 17-mm thoracostomy tubes, pneumothorax and a massive air leak persisted. Isolated central bronchial injury was confirmed by computed tomography of the chest. Bronchoscopically guided selective intubation of the left main stem bronchus failed and the patient desaturated, requiring immediate salvage right posterolateral thoracotomy. Simultaneous occlusion of the defect, stabilization, and subsequent selective left lung intubation was possible only after placing a suture at the tracheal rim of the defect for retraction allowing compression of the defect and keeping the lumen open at the same time.
Conclusion A cluster of clinical signs with subcutaneous emphysema and refractory pneumothorax with air leak of the thoracotomy tube is indicative of bronchial injury. Endotracheal intubation should be postponed in these cases until after thoracostomy tube placement, if possible. Placing a retraction suture during repair is a maneuver that helps to occlude the defect and keep the remaining tracheobronchial lumen open at the same time to establish crucial ventilation of the contralateral lung.
Case Series of Dengue Treated with Homoeopathic Intervention
Authors: Rath Padmalaya , Arya Bhopal Singh , Vichitra Anil Kumar , Singh Udaiveer 
Published: May 2019

Background Dengue is an infectious mosquito-borne disease in India and is caused by a virus named as dengue virus. It is also known as break bone fever, is a painful and sometimes fatal viral disease characterized by headache, skin rash and debilitating muscle and joint pains. In India, dengue is becoming a public health problem. The predominant dengue virus serotypes during the last few years have been DENV-2 and DENV-3. There is no specific antiviral treatment currently available for dengue fever. Time to time many dengue cases treated with homoeopathic medicine successfully have been reported.
Methodology Demographic data, symptoms and laboratory findings were collected from patients with confirmed dengue infections treated from outpatient department and inpatient department of Dr. D. P. R. Central Research Institute for Homoeopathy, Noida, from September 2015 to October 2015.
Results Four dengue infected patients were treated successfully by homoeopathic medicine Eupatorium perfoliatum without any complication.
Conclusion Dengue requires early diagnosis and treatment. Dengue can be managed with homoeopathy. Further studies are mandatory as evidence-based data in the management of dengue are sparse.
Mitral Valve Surgery in a Patient 50 Years after a Pneumonectomy
Authors: von Oehsen Hartwig H. C. , Högerle Benjamin A. , Giebels Christian , Schäfers Hans-Joachim 
Published: May 2019

Background Patients who survive long after pneumonectomy may develop heart valve disease. The consecutive operations can be complex because of the challenging anatomical conditions and the limited physiologic reserves of the patient.
Case Presentation The subject is a 78-year-old patient who underwent a left-sided pneumonectomy for a metastasized testicular tumor 50 years ago. At 32 and 37 years postpneumonectomy, mitral regurgitation was manifested, and valve repair was performed. Bioprosthetic mitral valve replacement and tricuspid valve reconstruction became necessary 44 years postpneumonectomy. The patient was fully recovered.
Conclusion In case of relevant heart valve disease after pneumonectomies, heart valve surgeries are feasible.
Prostaglandin F2α Facilitates Platelet Activation by Acting on Prostaglandin E2 Receptor Subtype EP3 and Thromboxane A2 Receptor TP in Mice
Authors: Kashiwagi Hitoshi , Yuhki Koh-ichi , Imamichi Yoshitaka , Kojima Fumiaki , Kumei Shima , Tasaki Yoshikazu , Narumiya Shuh , Ushikubi Fumitaka 
Published: May 2019

AbstractPlatelets play an important role in both physiological hemostasis and pathological thrombosis. Thromboxane (TX) A2 and prostaglandin (PG) I2 are well known as a potent stimulator and an inhibitor of platelet function, respectively. Recently, PGE2 has also been reported to regulate platelet function via PGE2 receptor subtypes. However, the effect of PGF2α on platelet function remains to be determined. The aim of the present study was to clarify the effect of PGF2α on murine platelet function both in vitro and in vivo. Platelets prepared from wild-type mice (WT platelets) expressed several types of prostanoid receptors, including the PGE2 receptor subtype EP3 and the TXA2 receptor TP, while expression of the PGF2α receptor FP was not detected. In WT platelets, PGF2α potentiated adenosine diphosphate-induced aggregation in a concentration-dependent manner, while PGF2α alone did not induce aggregation. In platelets prepared from mice lacking FP, however, PGF2α-induced potentiation was not significantly different from that in WT platelets. Interestingly, the potentiation was significantly blunted in platelets lacking EP3 or TP and disappeared completely in platelets lacking both EP3 and TP. Accordingly, PGF2α decreased the cyclic adenosine monophosphate level via EP3 and increased the inositol triphosphate level via TP in WT platelets. Intravenously administered PGF2α significantly shortened the bleeding time and aggravated arachidonic acid-induced acute thromboembolism in WT mice, suggesting that PGF2α works as a platelet stimulator also in vivo. In conclusion, PGF2α potentiates platelet aggregation in vitro via EP3 and TP but not FP. Accordingly, PGF2α facilitates hemostasis and thromboembolism in vivo.
Platelet Activation Is Limited during Transcatheter Aortic Valve Implantation in Patients on Aspirin Monotherapy and without per Procedural Clinical Complications
Authors: Dumonteil Nicolas , Levade Marie , Garcia Cédric , Lhermusier Thibault , Series Jennifer , Le Faouder Pauline , Marcheix Bertrand , Payrastre Bernard , Carrié Didier , Sié Pierre 
Published: May 2019

AbstractTranscatheter aortic valve implantation (TAVI) is an established treatment option for symptomatic patients with severe aortic valve stenosis (AS). During and early after the procedure, both ischemic events (predominantly stroke) and bleedings remain prevalent. The optimal antithrombotic regimen is still debated. Single- versus dual-antiplatelet therapy is associated with a lower rate of severe bleeding, without difference in thrombotic complications. Although platelets have been empirically targeted, little is known on their contribution to these events primarily related to embolization of thrombotic material and tissue-derived debris from the wounded aortic valve and large vessels. The objective of this study was to assess local platelet activation in blood sampled in the ascending aorta immediately before and within minutes postimplantation. A series of 18 patients with AS on monotherapy with aspirin successfully underwent TAVI with the self-expandable Medtronic CoreValve by transfemoral route. No clinical thrombotic complication occurred at 30-day follow-up. Compared with patients with stable coronary artery disease unscathed of AS and similarly treated by low-dose aspirin, AS patients displayed a chronic state of platelet activation before TAVI, assessed in venous blood using various biomarkers. However, per procedure, in aortic blood, no change occurred between the two time points in the plasma levels of serotonin or 12-lipoxgenase products, or membrane exposure of granule markers CD62-P and CD63. Our results suggest that local acute platelet activation is limited during TAVI on monotherapy with aspirin.
Role of thyroid dysimmunity and thyroid hormones in endometriosis
Authors: Peyneau Marine , Kavian Niloufar , Chouzenoux Sandrine , Nicco Carole , Jeljeli Mohamed , Toullec Laurie , Reboul-Marty Jeanne , Chenevier-Gobeaux Camille , Reis Fernando M. , Santulli Pietro , Doridot Ludivine , Chapron Charles , Batteux Frédéric 
Published: May 2019

Significance
Endometriosis is a common gynecological disorder whose physiopathology is still unclear. Thyroid autoimmunity has long been associated with endometriosis, without a mechanistic explanation to link the two pathologies. First, we showed that thyroid hormone metabolism is altered in endometriotic cells. Our in vitro study further revealed the proliferative and prooxidative roles of thyroid hormones in endometriotic cells. Finally, we confirmed the aggravating role of thyroid hormones in endometriosis evolution in three different mouse models. In humans, thyroid disorders are associated with more severe forms of endometriosis. Thus, thyroid function and thyroid hormone medication should be taken into account for the care of women with endometriosis.
Optimal power generation using dark states in dimers strongly coupled to their environment
Authors: Rouse D M , Gauger E M , Lovett B W 
Published: May 2019

Abstract
Dark state protection has been proposed as a mechanism to increase the power output of light harvesting devices by reducing the rate of radiative recombination. Indeed many theoretical studies have reported increased power outputs in dimer systems which use quantum interference to generate dark states. These models have typically been restricted to particular geometries and to weakly coupled vibrational baths. Here we consider the experimentally-relevant strong vibrational coupling regime with no geometric restrictions on the dimer. We analyze how dark states can be formed in the dimer by numerically minimizing the emission rate of the lowest energy excited eigenstate, and then calculate the power output of the molecules with these dark states. We find that there are two distinct types of dark states depending on whether the monomers form homodimers, where energy splittings and dipole strengths are identical, or heterodimers, where there is some difference. Homodimers, which exploit destructive quantum interference, produce high power outputs but strong phonon couplings and perturbations from ideal geometries are extremely detrimental. Heterodimers, which are closer to the classical picture of a distinct donor and acceptor molecule, produce an intermediate power output that is relatively stable to these changes. The strong vibrational couplings typically found in organic molecules will suppress destructive interference and thus favor the dark-state enhancement offered by heterodimers.
Research on predictive current control method of PMSM for continuous switched boost inverter
Authors: Yang Liyong , Han Shuo , Liu Shuo , He Xiaojuan 
Published: May 2019

Abstract
In this paper, the continuous switched boost inverter (CSBI) is used to improve permanent magnet synchronous motor (PMSM) control performance through predictive control, aiming at the drawback of the traditional PMSM drive system. Between the inverted circuit and the input DC power, a switched boost circuit is added to form a switched boost inverter circuit to achieve higher voltage gain and eliminate the dead band. Meanwhile, the drive system has higher reliability. Moreover, the paper adopts predictive current control (PCC) to control PMSM, comparing with the traditional field oriented control (FOC), PCC has faster dynamic performance and reduces current ripple. Finally, the simulation and experimental results verify the feasibility of the based on the continuous switched boost inverter of predictive current control for PMSM.
Influence of transmission distance on magnetically coupled resonant radio energy transmission system
Authors: JUN TONG , Xingchen Yang , Facheng LI , Xiang Li 
Published: May 2019

Abstract
Transmission distance is a key factor in designing a wireless energy transmission system. The change in coil spacing will have a huge impact on the output characteristics of the system.Therefore, this paper theoretically analyzes the mutual inductance model of two coils from the perspective of circuit theory.Studies have shown that coil spacing, impedance, self-inductance, operating frequency, load resistance and many other factors can affect the output characteristics of the system.So, this thesis uses the control variable method to study the relationship between transmission distance and output characteristics, and proposes the optimal output power point.Finally, an experimental prototype was made to verify the feasibility of the method.
Simulation of Relay Coordination by Labview and the Effect of Relay Coordination on Cost
Authors: Çimen Hasan , Akkan Recep , Yabanova İsmail 
Published: May 2019

Abstract
In this study, it is emphasized that simulation of the avoidance of unnecessary energy cuts in a sample electricity distribution network. The electricity cut-off costs can be decreased by ensuring that relay coordination end only at the source of the fault from the point of failure. Over currents are calculated and the sample network is simulated in the LabVIEW environment. The parameters of delayed overcurrent trip setting (I>), instantaneous overcurrent trip setting (I>> ), delayed ground overcurrent trip setting (Io>), instantaneous ground current trip setting (Io>>) are set according to a specific logic in relay coordination. As a result, you can get an idea about how much profit can be made by doing the relay coordination correctly and the amount of unnecessarily avoided energy. It is aimed with the application of this simulation in the real field that electrically operated materials of the people, who are unnecessarily energy-consuming, have less damage and that the energy-selling company loses less money.
Loss Analysis and Optimization Design of Half-Bridge LLC Resonant Converter
Authors: Jun TONG , Facheng LI , Xiang LI , Xingchen YANG 
Published: May 2019

Abstract
The efficiency improvement of switching converters has always been a research hotspot. This paper analyzes the loss of LLC resonant converter including magnetic components loss and Switching loss. For easier analysis, a mathematical model of the switching tube is established, and then derive the formula of the loss. The synchronous rectification technology is used to improve the efficiency of the LLC, and finally established a simulation model to verify the correctness of the technology to improve the efficiency of the converter.
Innovative Design of the Cooling Topologies for Electric Vehicle Motors
Authors: ZI-CHAO ZHANG , QIANG SONG , AHMED BILAL 
Published: May 2019

Abstract
According to the different cooling medium, the electric motor cooling styles can be divided into liquid cooling and air cooling; the former involves water cooling and oil cooling while the latter comprises natural air cooling and forced air cooling. Whereas, the air cooling system is difficult to meet various performance requirements for the modern Electric Vehicle (EV). Therefore, approximately all EV motors are liquid cooled at present. Moreover with the trend of EV motors to Permanent Magnet (PM) and to high speed, for instance, the maximum working rotated speed from 10,000rpm to 20,000 rpm, the packaging of the motor is minimized at same power while efficiency drops, lifetime shorten and even cause demagnetization due to thermal effects without optimum design. Consequently, the improvement of the liquid cooling system is essential to enhance the efficiency of the EV motor in the future for higher power density. In this perspective, the innovative cooling topologies of electric machines based on the development results of the parts such as lubricating oil and motive seal of electric vehicles are presented in this paper. It solves some problems brought about by predecessors in view of the high efficiency and reliability of the motor with higher energy density.
Parameter Tuning of PID Controller of Servo System Based on Particle Swarm Optimization Algorithm
Authors: Lianbo Chen , Xinhong Xiong , Yousheng Zheng , Yanhui Zhang , Guoqing Zhang , Xinyu Wu , Wei Feng 
Published: May 2019

Abstract
In order to improve the control precision of permanent magnet synchronous motor servo drive, a Proportional-Integral-Differential (PID) control method based on particle swarm optimization (PSO) algorithm is proposed. Firstly, the mathematical model of the permanent magnet synchronous motor was established. Then the PSO algorithm was used to adjust the parameters of the PID controller. Finally, the simulation experiment was carried out under the MATLAB/Simulink environment to test its performance. Compared with the traditional manual parameters tuning, the PID controller based on PSO algorithm had better performance and better stability.
A Novel Prediction Algorithm for the Cross Temperature Estimation of Blast Furnace
Authors: Jin Yan , Zhang Sen , Yin YiXin 
Published: May 2019

Abstract
In order to predict the distribution of gas flow, we need to get the temperature of each point in blast furnace throat in advance. In this paper, firstly, two intelligent modeling methods are used to establish a multiple-input multiple-output prediction model, one is extreme learning machine (ELM) algorithm and the other is online sequential extreme learning machine (OS-ELM) algorithm. And the model is a single-step prediction model of temperature in blast furnace, single-step prediction means the prediction of temperature in the next moment. We use autocorrelation analysis to determine input vector and output vector of the model. The result of autocorrelation analysis indicates that the method of temperature sequence prediction has a higher prediction accuracy and better prediction stability than the method of single point prediction. Next, based on real industrial data, we make a comparison between the multiple - input multiple-output model and least squares support vector machines (LS-SVM) model used in common. The experiment results show that OS-ELM model has a better forecast effect than the ELM model and LS-SVM model.
Analysis of Misalignment Effect on Wireless Charging System for Inspection Robots
Authors: Liu Han , Tan Linlin , Huang Xueliang , Czarkowski Dariusz 
Published: May 2019

Abstract
To solve the issues including the inflexibility, connector wear, and electric shock risk in contact charging system for inspection robots, the wireless charging system for inspection robots is introduced in this paper. The circuit model of this paper is developed based on the mutual inductance theory. The expressions of the receiving power and the efficiency are derived. The coordinate calculation method for mutual inductance between non-coaxial rectangular spiral coils according to the movement characteristics of inspection robot is presented. According to the calculation method, the characteristics of the receiving power and the efficiency varying with the position change of the receiving coil are investigated. The location of the positioning device for starting the wireless charging system can be selected based on the system characteristics. The theoretical analysis is verified by experiments.
Short Text Classification Improved by Feature Space Extension
Authors: Li Yanxuan 
Published: May 2019

Abstract
With the explosive development of mobile Internet, short text has been applied extensively. The difference between classifying short text and long documents is that short text is of shortness and sparsity. Thus, it is challenging to deal with short text classification owing to its less semantic information. In this paper, we propose a novel topic-based convolutional neural network (TB-CNN) based on Latent Dirichlet Allocation (LDA) model and convolutional neural network. Comparing to traditional CNN methods, TB-CNN generates topic words with LDA model to reduce the sparseness and combines the embedding vectors of topic words and input words to extend feature space of short text. The validation results on IMDB movie review dataset show the improvement and effectiveness of TB-CNN.