“Internet +” Thinking and New Model of Financial Engineering Professionals Training

In the modern era, “Internet +” is integrated into all aspects of life and is known for its convenience and efficiency. Financial engineering is the subject of efficient and creative solutions to financial problems. The development of financial engineering is inseparable from the development of Internet technology. The fast and efficient characteristics of “Internet +” are in line with the needs of financial engineering talent training. This paper analyzes the training objectives of financial engineering talents and the demand of market talents, and explores how to carry out a new mode of training new talents in financial engineering under the “Internet +” thinking, namely, the training model of theoretical talents, the training mode of scientific and technological talents and the cultivation of practical talents mode

Using the predictive method in the 2010 Highway Safety Manual to identify hazardous intersections in Corvallis, OR

An intersection, due to its vehicle and pedestrian conflict movements, experiences complex traffic situations that might contribute to crashes. In the city of Corvallis, OR, historically more than 80% of the total crashes have occurred within an intersection or have been designated as intersection-related. It is important to develop a transportation safety planning process that identifies hazardous locations so that an agency can implement improvements that provide the roadway users a safety transportation system. This thesis is focused on using the predictive method in the 2010 Highway Safety Manual (HSM) to evaluate potentially hazardous intersections in Corvallis, OR. The predictive method incorporates traffic volume, site geometric design, and traffic control features to develop predicted crashes. The procedure then applies the Empirical Bayes method to combine the predicted crash frequency with historic crash data, resulting in quantitatively reliable estimates of the expected average crash frequency. The author conducted safety analysis for 24 intersections in the city and used this analysis to identify hazardous intersections with potential safety problems. The results can assist with decision making for the city transportation safety program

The Effect of Microstructure on the Dynamic Equi-Biaxial Fatigue Behaviour of Magnetorheological Elastomers

Dynamic equi-biaxial fatigue behaviour of isotropic and anisotropic magnetorheological elas-tomers (MREs) based on a silicone rubber matrix was investigated using the bubble inflation method. Con-stant engineering stress amplitude was used as the control mode and samples were fatigued over different stress ranges between 0.75MPa and 1.4MPa. S-N (Wöhler) curves showing plots of stress amplitude (σa) ver-sus cycles to failure (N) are presented. Stress-strain behaviour throughout the fatigue process is described. Elastic modulus (E*) was studied for the specific cycles measured. It was found that anisotropic MREs exhi-bited greater fatigue resistance than isotropic MREs for a given magnetic particle content. Stress softening and hysteresis continued throughout the tests though they were most pronounced in the first dozen cycles at the lower stress amplitudes. A limiting value of E*, below which fatigue failure is likely to take place was ob-served in both isotropic and anisotropic MREs, although the initial modulus was higher in anisotropic MREs

Influencing Factors of Anger Induced by Patients in Medical Situations

Objective: This study was made to explore the inducing factors of patients’ anger in medical treatment in order to provide a solid and reliable theoretical basis for preventing doctor-patient conflicts, improving doctor-patient relationship, and promoting doctor-patient harmony and social harmony. Method: develop the “Questionnaire of the Inducing Factors of Anger in the Doctor-patient Relationship”and use the State-Trait Anger Expression Inventory-2 (STAXI-2) to survey the 111 patients that had experienced medical disputes or doctor-patient conflicts and actually got angry in the conflicts in the Hospital of Dali University.The SPSS22.0 statistical software was used to establish database and analyze the obtained data. Result: 1. The Influence of demographic variable on the anger of patients. The anger of the patients between 46-55 years old was significantly higher than that of patients below 25, between 25-35 or above 66. Patients with junior high school degree or lower had the highest emotion of anger, and then those with senior high school degree (including technical secondary school) followed. Patients with no jobs had the highest emotion of anger, and then farmers and workers followed, which were significantly higher than that of patients engaged in other occupations. Patients with the monthly income of RMB 2000 yuan or lower had the highest emotion of anger, and then those with no stable source of income followed, which were significantly higher than those with higher monthly income. 2. The anger of patients was significantly negatively correlated to their trustfulness in medial workers, but significantly positively correlated to medical costs, the communication with medical workers, their cognition of the medical condition, medical workers’ disclosure of patients’ condition, the medical treatment effect, medical workers’ problem-solving ability, medical facilities and environment and medical workers’ professional level. Conclusion: In the medical treatment, the main inducing factors that may evoke the anger of patients are: the communication with medical workers; the attitude of medical workers; medical treatment effect; medical workers’ professional level

The Influence of Particle Content on the Equi-Biaxial Fatigue Behaviour of Magnetorheological Elastomers

The equi-biaxial fatigue behaviour of silicone based magnetorheological elastomers (MREs) with various volume fractions of carbonyl iron particles ranging between 15% and 35% was studied. Wöhler curves for each material were derived by cycling test samples to failure over a range of stress amplitudes. Changes in complex modulus (E*) and dynamic stored energy during the fatigue process were observed. As for other elastic solids, fatigue resistance of MREs with different particle contents was shown to be dependent on the stress amplitudes applied. MREs with low particle content showed the highest fatigue life at high stress amplitudes while MREs with high particle content exhibited the highest fatigue resistance at low stress amplitudes. E* fell with the accumulation of cycles for each material, but the change was dependent on the particle content and stress amplitude applied. However, each material failed in a range suggesting a limiting value of E* for the material between 1.22 MPa and 1.38 MPa regardless of the particle content and the magnitude of the stress amplitude. In keeping with results from previous testing, it was shown that dynamic stored energy can be used to predict the fatigue life of MREs having a wide variation in particle content

Equi-Biaxial Fatigue Behaviour of Magnetorheological Elastomers in Magnetic Fields

The equi-biaxial fatigue behaviour of silicone based magnetorheological elastomers (MREs) in external magnetic fields was studied. Wöhler curves relating fatigue life to stress amplitude and dynamic stored energy for MREs with a range of magnetic particle contents were derived. It was found that the fatigue life of MREs in magnetic fields was higher than that without magnetic fields. Under constant stress amplitude conditions, the presence of magnetic fields resulted in longer times for the samples to undergo large deformations and thus complex modulus (E*) decreased at a slower rate during the fatigue process, especially for low stress amplitudes. MRE samples tested in the presence of magnetic fields reached limiting values of E* at failure ranging from 1.28 MPa to 1.44 MPa. The application of magnetic fields was found to have negligible influence on the damping loss factor of MREs containing various volume fractions of carbonyl iron particles

The Effect of Process Parameters on the Properties of Elastic Melt Blown Nonwovens: Air pressure and DCD

An elastic masterbatch and elastic melt blown nonwovens are prepared based successively on styrene-ethylene/butylene-styrene (SEBS) and polypropylene (PP) blend. The phase separation morphology, rheological properties and crystal structure of the elastic masterbatch are investigated. The results show that a compatible and stable structure is obtained in molten SEBS and PP blend with excellent mobility in the temperature range of 210–230C. The crystallization of PP slows down resulting in a finer structure due to the restriction of the SEBS network structure with rarely change of crystalline structure. The relationship between process parameters and properties of the elastic nonwoven is also studied in detail. Air pressure and die to collector distance (DCD) have discernible effects on fiber diameter and bonding between fibers, further influencing the performances of nonwovens including porosity, tensile strength and elastic recovery. Elastic recovery is shown to be significantly more affected by DCD than by air pressure

Carbon Nanotube Coated Fibrous Tubes for Highly Stretchable Strain Sensors Having High Linearity

Strain sensors are currently limited by an inability to operate over large deformations or to exhibit linear responses to strain. Producing strain sensors meeting these criteria remains a particularly difficult challenge. In this work, the fabrication of a highly flexible strain sensor based on electrospun thermoplastic polyurethane (TPU) fibrous tubes comprising wavy and oriented fibers coated with carboxylated multiwall carbon nanotubes (CNTs) is described. By combining spraying and ultrasonic-assisted deposition, the number of CNTs deposited on the electrospun TPU fibrous tube could reach 12 wt%, which can potentially lead to the formation of an excellent conductive network with high conductivity of 0.01 S/cm. The as-prepared strain sensors exhibited a wide strain sensing range of 0–760% and importantly high linearity over the whole sensing range while maintaining high sensitivity with a GF of 57. Moreover, the strain sensors were capable of detecting a low strain (2%) and achieved a fast response time whilst retaining a high level of durability. The TPU/CNTs fibrous tube-based strain sensors were found capable of accurately monitoring both large and small human body motions. Additionally, the strain sensors exhibited rapid response time, (e.g., 45 ms) combined with reliable long-term stability and durability when subjected to 60 min of water washing. The strain sensors developed in this research had the ability to detect large and subtle human motions, (e.g., bending of the finger, wrist, and knee, and swallowing). Consequently, this work provides an effective method for designing and manufacturing high-performance fiber-based wearable strain sensors, which offer wide strain sensing ranges and high linearity over broad working strain ranges

Fabrication of Dielectric Elastomers with Improved Electromechanical Properties Using Silicone Rubber and Walnut Polyphenols Modified Dielectric Particles

In this work, polyphenolic extract from walnut green husks (denoted as walnut polyphenols), which is an abun-dant agroindustrial residue/waste, was used to modify barium titanate (BT) particles in the preparation of sili-cone rubber (SR) based dielectric elastomer (DE) composites with enhanced electromechanical performance.By employing walnut polyphenols modification, the dispersibility of BT particles in the SR matrix and the com-patibility between BT and SR were greatly improved, which resulted in enhanced mechanical performance ofthe DE composites. Dielectric property measurement showed that DE composites containing walnut polyphenolsmodified BT particles (WNBT) had higher dielectric constants and lower dielectric losses than that of DEs withunmodified BT particles. Furthermore, it was found that the walnut polyphenols modification resulted in de-creased dielectric loss tangent of the DE composites, suggesting an improved compatibility between the modifiedBT particles and SR. Finally, the static and dynamic electromechanical performance of the DE composites wereevaluated. The SR/5%WNBT composite achievedthehighest actuatedareastrainof 38% among the SRbasedcom-posites used in this work. Moreover, the actuated area strain of SR/WNBT composites exhibited excellent electro-mechanical stability during the application of cyclic voltage signals

Styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes composite fiber based strain sensor with wide sensing range and high linearity for human motion detection

Flexible strain sensors have attracted extensive attention due to their potential applications in wearable electronics and health monitoring. However, it is still a challenge to obtain flexible strain sensors with both high stretchability and wide linear strain sensing range. In this study, styrene-ethylene-butadiene-styrene copolymer/carbon nanotubes (SEBS/CNTs) composite fiber which showed both electrical conductivity and high stretchability was fabricated through a scalable wet spinning method. The effect of CNTs content on the strain sensing behavior of the SEBS/CNTs fiber based strain sensor was investigated. The results showed that when the CNTs content reached 7 wt%, the SEBS/CNTs composite fiber was capable of sensing strains as high as 500.20% and showed a wide linear strain sensing range of 0-500.2% with a gauge factor (GF) of 38.57. Combining high stretchability, high linearity and reliable stability, the SEBS/CNTs composite fiber based strain sensor had the ability to monitor the activities of different human body parts including hand, wrist, elbow, shoulder and knee