bluuebunny/crossref_metadata_2025_split huggingface dataset:
Attitude control of fixed-wing UCAV based on adaptive fuzzy PID
Authors: Shuo KU , Da-li Ding , Wei-li Yang , Wen-qiang Zhu 
Published: January 2020

Abstract
Aiming at the nonlinear and strong coupling characteristics of the fixed-wing UCAV’s rigid body six-degree-of-freedom model, an adaptive fuzzy PID attitude control method was designed based on expert experience. The nonlinear model of UCAV was linearized with the principle of small disturbance, thus the state space expressions of longitudinal and lateral channels were obtained and the decoupling of the longitudinal and lateral channels was achieved. To verify the designed adaptive fuzzy PID controller, the simulation was carried out aiming at the pitch angle and velocity of the longitudinal channel and the roll angle of the lateral channel. The result showed that the designed controller had faster responsive speed and higher stability, and it could control the UCAV to achieve the desired attitude effectively.
Effects of extrusion temperatures on mechanical properties of B4C/Al composites
Authors: Wu ShuangP , Feng ShangY , Wang Jia , Li Qiu-Lin 
Published: January 2020

Abstract
This article studied the effects of extrusion at different temperatures on the microstructures and mechanical properties of B4C particle reinforced Al neutron shielding composite produced by powder metallurgy method. The results indicated that, the interfacial bonding between the B4C particles and the matrix was greatly improved by hot extrusion at studied temperatures. In addition, the mechanical properties of the composites were obviously improved after hot extrusion. However, by further increased the extrusion temperature, yield strength (YS) and ultimate tensile strength (UTS) of the composites decreases. Meanwhile, the fractography of extruded composite revealed that fracture mechanism changed from particle brittle cracking to matrix plastic damage as extrusion temperature increased.
Acquisition design and implement of Beidou B3I signal based on GPU
Authors: Li Gezheng , Chang Qing , Xi Chuang , Ma Xu 
Published: January 2020

Abstract
China’s Beidou satellite navigation system (BDS) has developed rapidly in recent years. In 2018, China recently publicized the latest Beidou system space signal interface control file (ICD) of the Beidou B3I. Since the Beidou B3I signal has only been released for a short time, there are no references for its implementation. Based on the research on the development status of signal acquisition at home and abroad, this paper studies the real-time problem of software receivers and optimize the module in the capture process on graphic processing unit (GPU) according to the characteristics of B3I signal, design and implement a Beidou B3I software receiver capture architecture and algorithm based on GPU. By comparing with acquisition on CPU, each computing module achieves a GPU/CPU acceleration ratio of 4-50 times, the overall signal acquisition speed has been improved by 2.5 times, and the real-time performance of Beidou B3I software receiver has been effectively improved. At the same time, aiming at the problem of Beidou signal acquisition accuracy, a secondary capture method is designed to improve the capture accuracy. In addition, an optimization idea based on compute unified device architecture (CUDA) programming is proposed to further parallel computing performance on GPU.
Identification and Control of Counter-traction Mechanism to Finger Traps for Fracture Reduction
Authors: Prasoetkarn N , Numanoy N , Saengsri S , Srisertpol J 
Published: January 2020

Abstract
Finger traps are a valuable tool that can be maintained the traction. The devices stretch the thumb and other four fingers separately in order to achieve better reduction effect. These are applied individually to the fingers and the limb is suspended, with gravity providing counter-traction to disimpact the fracture by traction. However, personal gravity can’t be used to maintain the appropriate tension. This paper proposed an experimental study on the tension of counter-traction mechanism to finger traps for fracture reduction. This mechanism is particularly useful to help for the patients. Transfer function estimation from experimental data can improve the overall identification performance and the parameter. The feedback control system design for compensating tension that loses from disturbance tension consisted of the controller as PI controller and actuator as DC motor with counter-traction mechanism. Experimental results were demonstrated the efficiency of the proposed system to maintain the appropriate tension.
Grasp Pose Detection Based On Point Cloud Shape Simplification
Authors: Liu H W , Cao C Q 
Published: January 2020

Abstract
In the robot grasping environment, grasping unknown objects that have neither model data nor RGB data is very important, we present a new approach for grasping unknown objects. Firstly, depth camera is used to obtain the partial 3D data of target object. Then, we perform 3D segmentation and the segmented parts are simplified to a cylinder, a sphere, an ellipsoid or a parallelepiped based on the geometric and semantic shape characteristic. Grasping constraints are used to obtain grasp candidates based on the simplified shape. The grasp descriptions are used to describe each candidates and CNN is used for grasping training. We evaluate our grasp networks both in simulation and robotic experiment, and the experiment result shows that the grasp quality score using simplified constraints is more robust than without simplified constraint when the gripper posture is uncertain.
Prediction of Marine Diesel Engine Combustion Characteristic in Transient Condition By Using Seiliger Process Cycle
Authors: Htet Sein Myo , Jian Bo Sun 
Published: January 2020

Abstract
Modern diesel engine cycle can be predicted by applying variety of simulation methods. These models are used for optimization of engine parameters, investigation of control strategies or evaluation phenomena that are difficult to measure. In practice, using engine cycle simulation methods, the number of expensive experiments studies could be reduced and very useful result could be obtained for prediction of engine design parameters in a short period of time. Furthermore, these models are also used to test different solutions (technologies) or control strategies which can help to reduce fuel consumption, increase power output, reduce emissions to meet emission requirement. In diesel engine modeling process, in cylinder pressure measurement is the fundamental method to investigate the combustion process and an effective way to get insight into the combustion phenomena. The main objective of the paper is focusing on the transient modeling of marine two stroke diesel engine and calculating (prediction) the parameter of the cylinder process model by using the Seiliger cycle process. The research approach is carried out using data from a MAN-10L90MC diesel engine and mathematical model of the test engine is calculated by using Microsoft Visual 6.0 VC++ programming.
Design and Simulation of the Controller for Pneumatic Self-Balancing Hoist System
Authors: Yang Liang , Yin Peng , Yin Rong 
Published: January 2020

Abstract
The design of the controller of the pneumatic hoist system is the most important step in the whole work process. The quality of the design of the controller is directly related to the realization of the system. This paper elaborates the detailed design of the system in a few steps. Firstly, a set of optimal control parameters kp

*, ki
*
, and kd

* are selected. Then the fuzzy self-tuning PID controller is designed for the valve-controlled cylinder system. Finally, the response characteristic simulation of the fuzzy self-tuning PID controller is designed based on Matlab/Simulink platform. From the result and analysis, it can be seen from the simulation results that through the adjustment of the fuzzy self-tuning PID controller, the system adjustment time ts
are within 0.8s, and the steady-state error rate is controlled within 3%.
Acceleration Based Approach for Position Control
Authors: Khaled Nassim 
Published: January 2020

Abstract
In many current control applications, redundant sensors are becoming standard. In particular, autonomous cars, airplanes and aerospace applications all have a multitude of acceleration and position sensors. The need for robust control algorithms that can utilize multiple sensors, even for SISO systems, is fundamental, especially if these algorithms can accommodate sensor failures and account for system dynamics.
In this paper, we propose a combined position and acceleration feedback strategy to control position. The proposed strategy allows seamless embedding of the acceleration properties of the plant into the design of the controller.
Design of PI Controller for PMSM using Chaos Particle Swarm Optimization Algorithm
Authors: Rui Zuo , Xinhong Xiong , Lianbo Chen , Shifeng Guo , Yanhui Zhang , Daoqi Li , Wei Feng 
Published: January 2020

Abstract
The proportional-integral-derivative (PID) controller parameters tuning is critical for improving the performance of permanent magnet synchronous motor (PMSM) systems. To improve the performance of particle swarm optimization (PSO) in the PID parameters tuning, the chaos particle swarm optimization (CPSO) is adopted to tune PI parameters in this work. The PMSM vector control system is selected as the research object, and its speed loop PI controller using CPSO algorithm is implemented. The optimal PI controller parameters are obtained using the CPSO algorithm with ten iterations. The simulation is conducted using MATLAB/Simulink to evaluate to the PI controller performance. Four performance indicators including overshoot, rise time, peak time and ITAE are used to evaluate the PI controller with CPSO, and the results suggest that the CPSO algorithm has better performance and stability compared with other tuning methods.
Motion Analysis of Kick Mechanism Using in Muay Thai Matial Art
Authors: Weerawat T , Jiraphon S , Kontorn Ch , Sorada Kh 
Published: January 2020

Abstract
The purposes of this research were to analyse speed of basic Muay Thai skills which consists of using feet and knee. By using the human motion-tracking cameras to create 3D animations that is associated with an image from a video camera and biomechanics analysis. The subjects group consisted of 5 professional boxers from Kiat Moo 9 Muay Thai camp by using purposive sampling method. The instrument used of this research was Qualisys Trach Managa (Motion Capture System). It was used to collect data motion capture and to analyses velocity Muay Thai basic skills. Statistics used for this research were arithmetic mean and standard deviation. The results showed that the average speed of basic Muay Thai skills include, Diagonal Kick, Straight Foot-thrust, Sideways Foot-thrust, Straight Knee-kick and Diagonal Knee-kick has 17.15, 6.01, 5.28 6.29 and 6.42 m/s, respectively. Standard deviation has 2.90, 1.47, 1.24, 1.01 and 1.75 respectively.
MCNT/MoS2 promoting the electrochemical performance of lithium-sulfur batteries by adsorption polysulfide
Authors: Guo Weimin , Zhu Qinglin , Lu Qinghua 
Published: January 2020

Abstract
Li–S battery has high theoretical specific capacity and specific energy, but the shuttle effect challenges its commercial application. So many composite materials had been prepared to conquer it. In this research, MCNT/MoS2/S composite and MCNT/MoS2/S composite cathode were prepared respectively by a facile hydrothermal method and by melt diffusion method. MoS2 and MCNT showed uniformly combined together by SEM and TEM. The electrochemical properties of the MCNT/MoS2/S cathode were carried out on a Gamry electrochemical workstation. The initial capacity arrive 820 mAh·g−1 at 0.1 C, and specific capacities up to ∼460 mAh·g−1 over more than 300 cycles at 0.5 C. The improvement of electrochemical performance due to MoS2 strongly adsorbing polysulfide and the conductivity network of MCNT.
Texture-tensile properties correlation of 304 austenitic stainless steel rolled with the change in rolling direction
Authors: Rout Matruprasad 
Published: January 2020

Abstract
Rolling, at elevated temperature, with a change in the rolling direction (RD) have been conducted on 304 austenitic stainless steel. Two different sequences of change in RD, after each pass, have been followed viz., change in RD by 90°; designated as cross rolling (CR) and change in RD by 180°; designated as reverse rolling (RR). Effect of this change in RD on texture and tensile properties has been studied through Electron backscattered diffraction (EBSD) and uniaxial tensile test, respectively. In addition, tensile tests have been performed to study the anisotropy in tensile properties. The result shows a significant effect on the texture component formation. RR develops strong Cu and S components whereas CR forms strong Brass component. However, both the rolling sequence produces moderate Goss orientation. The observed tensile properties are correlated with the texture developed by both the processes.
Optimal thickness of the catalytic nickel coating for the CVD synthesis of carbon nanomaterials
Authors: Abuhimd H M , Kiyashko M V , Grinchuk P S 
Published: January 2020

Abstract
The effect of the thickness of a catalytic nickel coating deposited on a copper substrate by an electrochemical method on the intensity of formation of carbon nanomaterials in the CVD process was investigated. It was found that the dependence of the specific nanostructured carbon yield on the coating thickness is extremal, with a maximum near 1.5 μm. Qualitative interpretation of the obtained data is proposed on the basis of the carbon growth mechanisms on the catalytic coating.
Antimicrobial Treatment of Human Plague: A Systematic Review of the Literature on Individual Cases, 1937–2019
Authors: Nelson Christina A , Fleck-Derderian Shannon , Cooley Katharine M , Meaney-Delman Dana , Becksted Heidi A , Russell Zachary , Renaud Bertrand , Bertherat Eric , Mead Paul S 
Published: January 2020

Abstract

Background
Yersinia pestis remains endemic in Africa, Asia, and the Americas and is a known bioterrorism agent. Treatment with aminoglycosides such as streptomycin or gentamicin is effective when initiated early in illness but can have serious side effects. Alternatives such as fluoroquinolones, tetracyclines, and sulfonamides are potentially safer but lack robust human data on efficacy.

Methods
We searched PubMed Central, Medline, Embase, and other databases for articles in any language with terms related to plague and antimicrobials. Articles that contained case-level information on antimicrobial treatment and patient outcome were included. We abstracted information related to patient demographics, clinical features, treatment, and fatality.

Results
Among 5837 articles screened, we found 762 published cases of treated plague reported from 1937 to 2019. Fifty-nine percent were male; median age was 22 years (range, 8 days–80 years). The case fatality rate was 20% overall. Most patients had primary bubonic (63%), pneumonic (21%), or septicemic (5%) plague, with associated case fatality rates of 17%, 27%, and 38%, respectively. Among those treated with an aminoglycoside (n = 407 [53%]), the case fatality rate was 13%. Among those treated with a sulfonamide (n = 322 [42%]), tetracycline (n = 171 [22%]), or fluoroquinolone (n = 61 [8%]), fatality was 23%, 10%, and 12%, respectively. Case fatality rate did not substantially differ between patients treated with 1 vs 2 classes of antimicrobials considered to be effective for plague.

Conclusions
In addition to aminoglycosides, other classes of antimicrobials including tetracyclines, fluoroquinolones, and sulfonamides are effective for plague treatment, although publication bias and low numbers in certain treatment groups may limit interpretation.
Plague During Pregnancy: A Systematic Review
Authors: Fleck-Derderian Shannon , Nelson Christina A , Cooley Katharine M , Russell Zachary , Godfred-Cato Shana , Oussayef Nadia L , Oduyebo Titilope , Rasmussen Sonja A , Jamieson Denise J , Meaney-Delman Dana 
Published: January 2020

Abstract

Background
Yersinia pestis continues to cause sporadic cases and outbreaks of plague worldwide and is considered a tier 1 bioterrorism select agent due to its potential for intentional use. Knowledge about the clinical manifestations of plague during pregnancy, specifically the maternal, fetal, and neonatal risks, is very limited.

Methods
We searched 12 literature databases, performed hand searches, and consulted plague experts to identify publications on plague during pregnancy. Articles were included if they reported a case of plague during pregnancy and at least 1 maternal or fetal outcome.

Results
Our search identified 6425 articles, of which 59 were eligible for inclusion and described 160 cases of plague among pregnant women. Most published cases occurred during the preantibiotic era. Among those treated with antimicrobials, the most commonly used were sulfonamides (75%) and streptomycin (54%). Among cases treated with antimicrobials, maternal mortality and fetal fatality were 29% and 62%, respectively; for untreated cases, maternal mortality and fetal fatality were 67% and 74%, respectively. Five cases demonstrated evidence of Y. pestis in fetal or neonatal tissues.

Conclusions
Untreated Y. pestis infection during pregnancy is associated with a high risk of maternal mortality and pregnancy loss. Appropriate antimicrobial treatment can improve maternal survival, although even with antimicrobial treatment, there remains a high risk of pregnancy loss. Limited evidence suggests that maternal-fetal transmission of Y. pestis is possible, particularly in the absence of antimicrobial treatment. These results emphasize the need to treat or prophylax pregnant women with suspected plague with highly effective antimicrobials as quickly as possible.
Inflammatory Bowel Disease and Risk of Birth Defects in Offspring
Authors: Auger Nathalie , Côté-Daigneault Justin , Bilodeau-Bertrand Marianne , Arbour Laura 
Published: January 2020

AbstractBackground and AimsThe relationship between inflammatory bowel disease in pregnancy and birth defects is not understood. We evaluated whether Crohn’s disease and ulcerative colitis in pregnant women were associated with the risk of birth defects in the offspring.MethodsWe undertook a retrospective cohort study of 2 184 888 pregnancies in Quebec, Canada, between 1989 and 2016. We calculated risk ratios [RR] and 95% confidence intervals [CI] for the association between inflammatory bowel disease and the risk of birth defects, using generalised estimating equations adjusted for maternal characteristics. We assessed associations in the period before 2000, when immunosuppressive biologic therapy and folic acid food fortification were not yet available, compared with the period after 2000 when these interventions were more widespread.ResultsThis study included 13 099 women with Crohn’s disease and 7798 with ulcerative colitis. Crohn’s disease was associated with 1.90 times [95% CI 1.10–3.28] the risk of abdominal wall defects [gastroschisis, omphalocoele, and diaphragmatic hernia] and ulcerative colitis was associated with 1.53 times [95% CI 1.02–2.30] the risk of central nervous system defects. The association of Crohn’s disease with abdominal wall defects was stronger before 2000 [RR 3.62, 95% CI 1.71–7.67] than after 2000 [RR 1.23, 95% CI 0.55–2.75]. Ulcerative colitis was associated with central nervous system defects regardless of time period.ConclusionsThese findings suggest that inflammatory bowel disease is associated with the risk of abdominal wall and central nervous system defects, and that introduction of immunobiologic medications is unlikely to be associated with added risk.PodcastThis article has an associated podcast which can be accessed at https://academic.oup.com/ecco-jcc/pages/podcast
Saproxylic Cetoniidae (Coleoptera: Scarabaeoidea): A ‘Females’ World’ or a Question of Dependence on Deadwood?
Authors: Martínez-Pérez Sandra , Sanchez-Rojas Gerardo , Galante Eduardo , Micó Estefanía 
Published: January 2020

AbstractWe explored the dependence of some Cetoniidae species on saproxylic environments and microhabitats in a Mediterranean oak forest by analyzing species collected using different kinds of traps—log emergence, hollow emergence, and interception traps—and the sex ratio of the species in each trap. Comparing the sex ratio of the species collected via emergence versus interception was useful to unravel the degree of dependence on saproxylic microhabitats. Among the species studied, Cetonia aurataeformis Curti, 1913 (Coleoptera: Cetoniidae) was the only obligate tree hollow inhabitant. Special attention should thus be paid to the maintenance of tree hollows for the species’ conservation in Mediterranean forests. A gradient of dependence on tree hollows was established from the more dependent Protaetia (Potosia) cuprea (Fabricius, 1775) (Coleoptera: Cetoniidae) and Protaetia (Potosia) opaca (Fabricius, 1787) (Coleoptera: Cetoniidae) to the less dependent Protaetia (Netocia) morio (Fabricius, 1781) (Coleoptera: Cetoniidae). All the latter species can be considered facultatively dependent, to varying degrees, on tree hollows. By contrast, the saproxylic affinity of Protaetia (Netocia) oblonga (Gory and Percheron, 1833) (Coleoptera: Cetoniidae), Tropinota squalida (Scopoli, 1783) (Coleoptera: Cetoniidae) and Oxythyrea funesta (Poda, 1761) (Coleoptera: Cetoniidae) was doubtful. Generally, the sex ratio of the studied species was female-biased. A possible explanation may be local male competition for females, suggesting the Cetoniinae is a female world. However, the range of difference in the female-biased sex ratio among species suggests it is important to explore other possible causes, such as differences in dispersal abilities.
CRISPR-Cas9-mediated genome editing in vancomycin-resistant Enterococcus faecium
Authors: de Maat Vincent , Stege Paul B , Dedden Mark , Hamer Maud , van Pijkeren Jan-Peter , Willems Rob J L , van Schaik Willem 
Published: January 2020

ABSTRACT
The Gram-positive bacterium Enterococcus faecium is becoming increasingly prevalent as a cause of hospital-acquired, antibiotic-resistant infections. A fundamental part of research into E. faecium biology relies on the ability to generate targeted mutants but this process is currently labour-intensive and time-consuming, taking 4 to 5 weeks per mutant. In this report, we describe a method relying on the high recombination rates of E. faecium and the application of the Clustered Regularly Interspaced Short Palindromic Repeat (CRISPR)-Cas9 genome editing tool to more efficiently generate targeted mutants in the E. faecium chromosome. Using this tool and the multi-drug resistant clinical E. faecium strain E745, we generated a deletion mutant in the lacL gene, which encodes the large subunit of the E. faeciumβ-galactosidase. Blue/white screening using 5-bromo-4-chloro-3-indolyl-β-D-galactopyranoside (X-gal) could be used to distinguish between the wild-type and lacL deletion mutant. We also inserted two copies of gfp into the intrinsic E. faecium macrolide resistance gene msrC to generate stable green fluorescent cells. We conclude that CRISPR-Cas9 can be used to generate targeted genome modifications in E. faecium in 3 weeks, with limited hands-on time. This method can potentially be implemented in other Gram-positive bacteria with high intrinsic recombination rates.
Beijing IP Court clarifies standard of infringement for moral right of integrity
Authors: Yang Jing 
Published: January 2020

Abstract
Muye Zhang v China Film Co. LTD, Chuan Lu, Dream Author Film Co., Letv Film Co., No 587 (2016), Civil Final Instance, Beijing Intellectual Property Court, 8 August 2019
In Muye Zhang v China Film Co. LTD, et al, the Beijing Intellectual Property Court reversed the decision of Beijing Xicheng District Court and reiterated that ‘prejudice to author’s honour or reputation’ is not a prerequisite for infringement of the right of integrity under Article 10(4) of Copyright Law; in so doing, the court provided some much-needed guidance on evaluating a claim for infringement of the said right.