In this paper, by researching logistics service negative comments about innovative products and functional products, such as the length quantity and content of the comment, we study on the ...correlation between online sales and logistics service. We make a survey on the negative comments about logistics data based in Taobao from Jun to Oct in 2015. Then through the correlation analysis, we draw a conclusion that as for functional products, most factors about logistics service have greater influence on online sales than that for innovative products, except for delivery efficiency.
P5; This paper determines the crystallization ages of the Xiaotongguanshan quartz monzodiorite and Shatanjiao quartz monzonite porphyry from the Tongling area using the SHRIMP zircon U-Pb method. The ...crystallization age of the former is 142.8±1.8 Ma; that of the latter is 151.8±2.6 Ma. These data indicate that they were formed during the Late Jurassic (142.8 to 151.8 Ma). Zoned magma chamber was formed because of double diffusive convection. Therefore, the intrusive sequence of magma is generally from quartz monzonite through quartz monzodiorite to pyroxene monzodiorite,i.e. an inverted sequence.
Carbon tax is not only an important part of the environmental taxation system, but also an important tool of environmental economic policy. The theoretical basis of a carbon tax is to internalize ...externalities in order to avoid the Tragedy of the Commons in atmosphere. Carbon tax would greatly decrease CO 2 emissions. It would restrain economic growth in the short term, but is conducive to the healthy development of economy in the medium and long term, Meanwhile, it would reduce energy consumption and energy intensity, and would promote changes in energy consumption structure, but it increases the gap of income distribution between capital and labor and exacerbates social injustice. China has a huge pressure of CO 2 emissions reduction after 2012, therefore, I recommend that the government begins to levy a carbon tax in 2013 and implement a low tax rate of 20CNY/tc which increases gradually in future.
The Hybrid Electric Vehicle (HEV) equipped with Electric Variable Transmission (EVT) can provide any power while the engine working in optimal status, for the assistance of motor and the battery. The ...battery must not be overcharged and discharged too much to keep the life and for nature function. This paper lists every working mode of EVT, and presents the PRI of the control strategy and the steps to decide the working-point for engine and the principle to keep the SOC of the battery. The simulation and validate the strategy and the principle.
To investigate the symptomatic, biochemical, and pathological characteristics of mitochondrial myopathy and mitochondrial encephalomyopathy.
Physical examination, electromyography, ...electroencephalography, cranial CT or MRI, serum enzymological examination, and light microscopy and electron microscopy of muscle biopsy specimens were made among twenty-one in-patients with the diagnosis of mitochondrial myopathy and mitochondrial encephalopathy. All the patients were followed up for more than 5 years.
Four patients died of lung infection, epilepticism or multiple organ failure 3, 4, 6, and 8 years after the onset of disease. One patient had already survived for 12 years. Among the 6 patients with the original diagnosis of mitochondrial myopathy, the diagnosis of two was changed as myoclonus epilepsy with ragged fiber (MERRF) 5 and 6 years after the onset. Among the seven patients whose disease was originally diagnosed as chronic progressive external ophthalmoplegia the diagnosis was changed as mitochondrial ence
A HEV system is developed. The system introduces an electric variable transmission (EVT) motor system as the energy coupler and converter which replaces the generator and motor in a typical series ...HEV, resulting in higher flexibility, efficiency and a compact size. The system configuration and control strategies for motor, ICE and battery are explained in detail. Simulation validates the feasibility of the configuration and shows the improvement in fuel economy compared with the base model. A test bench is built to carry out lab test. Control parameters in transient conditions, such as the engine starting and stopping, engine power tracking the road load demand, are carefully fine tuned in the test, to reduce impact due to inconsistence, resulting in a smooth drive and high efficiency.
Privacy-preserving online multi-task assignment is a crucial aspect of spatial crowdsensing on untrusted platforms, where multiple real-time tasks are allocated to appropriate workers in a ...privacy-preserving manner. While existing schemes ensure the privacy of tasks and users, they seldom focus on minimizing the total moving distances for crowdsensing workers when assigning multiple tasks in real time, which adversely impacts the efficiency of online multi-task assignments. To address this issue, we propose POTA, the first privacy-preserving online multi-task assignment scheme with path planning that minimizes the total moving distances for crowdsensing workers without additional noise. POTA cryptographically implements the extended minimum-cost flow model, which models the encrypted data of workers and tasks in a graph and later produces optimized routing. With such a secure path-planning component, POTA reduces the total moving distances by <inline-formula><tex-math notation="LaTeX">25.19\%-52.78\%</tex-math> <mml:math><mml:mrow><mml:mn>25</mml:mn><mml:mo>.</mml:mo><mml:mn>19</mml:mn><mml:mo>%</mml:mo><mml:mo>-</mml:mo><mml:mn>52</mml:mn><mml:mo>.</mml:mo><mml:mn>78</mml:mn><mml:mo>%</mml:mo></mml:mrow></mml:math><inline-graphic xlink:href="liang-ieq1-3315324.gif"/> </inline-formula> in the tested dataset compared with the state-of-the-art schemes with obfuscated path planning. Security analysis proves that POTA guarantees the confidentiality of sensitive data, a stronger security property than introducing obfuscation to sensitive data. Experimental evaluations on real-world datasets demonstrate the feasibility of POTA in terms of running time and its ability to achieve minimized total moving distances.
