6-[(2-Chloro­pyridin-5-ylmeth­yl)(eth­yl)­azan­yl]-4-(2-fluoro­phen­yl)-1-methyl-5-nitro-1,2,3,4-tetra­hydro­pyridin-2-one

In the title compound, C20H20ClFN4O3, the tetra­hydro­pyridone ring adopts a skew boat conformation. The dihedral angle between the mean planes of the benzene and pyridine rings is 80.7 (3)°. In the crystal, weak C—H⋯O inter­actions are observed

Research on Keyhole Diameter’s Vision Measurement Based on Parallel Technology

A keyhole diameter of the cartridge’s measurement based on machine vision is a part of the cartridge’s geometry measurement system, according to the system requirements, to complete the measurement within 5 seconds. A Image Collection System was constructed using computer, CCD camera, LED source, meanwhile a measurement system was compiled by C# on VS2010 platform based on machine vision. Use the Otsu algorithm to extracts the keyhole’s edge and near the pixels in order to reduce the computational Canny operator, and use parallel computing in the Canny operator to improve computing speed purposes. Use QueryPerformanceCounter timer for each module timing Canny operator, Canny operator improved computation time is reduced from the original 6s to nearly a hundred ms improved. Meet the time requirements of cartridge geometry measurement system, and other machine vision in which the project can be widely used

Integrating static and dynamic information for routing traffic

The efficiency of traffic routing on complex networks can be reflected by two key measurements i.e. the system capacity and the average data packets travel time. In this paper, we propose a mixing routing strategy by integrating local static and dynamic information for enhancing the efficiency of traffic on scale-free networks. The strategy is governed by a single parameter. Simulation results show that there exists a optimal parameter value by considering both maximizing the network capacity and reducing the packet travel time. Comparing with the strategy by adopting exclusive local static information, the new strategy shows its advantages in improving the efficiency of the system. The detailed analysis of the mixing strategy is provided. This work suggests that how to effectively utilize the larger degree nodes plays the key role in the scale-free traffic systems.Comment: 5 pages, 5 figure

Using a Hybrid Evolutionary Algorithm for Solving Signal Transmission Station Location and Allocation Problem with Different Regional Communication Quality Restriction

This study aims to investigate the signal transmission station location-allocation problems with the various restricted regional constraints. In each constraint, the types of signal transmission stations and the corresponding numbers and locations are to be decided at the same time. Inappropriate set up of stations is not only causing the unnecessary cost but also making the poor service quality. In this study, we proposed a hybrid evolutionary approach integrating the immune algorithm with particle swarm optimization (IAPSO) to solve this problem where each of the regions is with different maximum failure rate restrictions. We compared the performance of the proposed method with commercial optimization software LINGO®. According to the experimental results, solutions obtained by our IAPSO are better than or as well as the best solutions obtained by LINGO®. It is expected that our research can provide the telecommunication enterprise the optimal/near-optimal strategies for the setup of signal transmission stations

Application of the interventional limb raising management strategy (ILRMS) at radial vascular access sites in coronary angiography and percutaneous coronary intervention: A randomized trial

AbstractPurposeTo compare the effectiveness of the interventional limb raising management strategy (ILRMS) to elastic bandage compression at radial vascular access sites following coronary angiographies (CAGs) and percutaneous coronary interventions (PCIs).MethodsPatients with ischemic coronary heart disease whose condition was stable over three months were enrolled in this clinical study (n = 590; aged 25–80). All participants had just undergone CAG and PCI. Patients were randomized into either the ILRMS group (n = 360) or standard post-intervention care with an elastic bandage (n = 230). Overall comfort and wrist pain was assessed and the degree of index finger swelling and oxygen saturation was measured on the affected arm. All variables were measured prior to post-intervention treatment and again at six hours after CAG and PCI.ResultsWe found that patients receiving ILRMS had significantly lower wrist pain scores and swelling around the index finger compared to the elastic bandage group (p < 0.05). Oxygen saturation of the index finger was not statistically significant (p > 0.05). We also found that 19.57% of the elastic bandage patients were comfortable, while ILRMS patients were significantly more comfortable (93.06%; p < 0.05).ConclusionsWe find that ILRMS alleviates swelling and pain of the wrist more effectively than current practices and improves the degree of overall comfort of patients who undergo CAG and PCI