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Object must be selected manually and scale variation can't be handled with properly when using traditional algorithms. To overcome this problem, this paper proposed a new object tracking algorithm fused with optical flow detection and template matching. Firstly, it automatically detected and extracted object by combining the optical flow and the image segmentation results, accomplishing detection based tracking. It used the template matching technique for target locating when the result of the detection based tracking was unreliable, accomplishing matching based tracking. Finally, with the help of the template's auto update, adapted the target's changing in scale by the tracking window. The experimental results demonstrate that the proposed method can not only adapt object's scale variation, but acquires stable tracking results. Compared with three other algorithms, the proposed method has advantages in automatic detection and scale self-adaptation. [ABSTRACT FROM AUTHOR]

Event-B is a formal modeling language based on set theory and predicate logic, within which hierarchical models can be established by refinement strategy. A method for applying Event-B to practical industry is proposed, which consists of rewriting requirement, establishing abstract model, and step-by-step refining. Firstly, requirements are rewritten from three different views&: environmental view, functional view, and property view. During this phase? refinement strategy reflecting model hierarchy is identified. Secondly, formal methods are adopted to establish abstract model and validate the established model. Using well-proved abstract model, requirement appending, model refining and model validating are carried out at the following levels of the model hierarchy according to the refinement strategy. Finally, based on the whole established models corresponding to requirements, implementation codes can be automatically generated by the related tools. With refinement theory adopted in this method, requirements and properties of system under development can be identified in a refinement way and incrementally. Modeling and verification using formal methods guarantees the correctness of models. To illustrate the feasibility of the method, the development of multi-application smart cards ss shown as a case study. Appilcation example of the proposed method in pratcal modeiing and vaiidaion is given based on Event-B and Rodin platform. [ABSTRACT FROM AUTHOR]

The experiment was to investigate the effect of phytosterol formula on growth performance, immune function, nutrient apparent digestibility and intestinal microflora of piglets. The results showed that the feeding phytosterol formula increased the average daily gain of piglets by 14.73%, and reduced diarrhea rate by 62.21%. The serum test found that growth hormone in serum increased by 18.59%, total protein increased by 13.07%, immunoglobulin G increased by 42.70%, and TNF-α decreased by 24.49%. The apparent digestibility rate of dry matter, crude fat and crude protein was improved and the intestinal microbes was significantly boosted. The experiment indicates that the phytosterol formula significantly improves the immune function of piglets and growth performance, which can be potentially used as an antibiotics replacement products in feed industry. [ABSTRACT FROM AUTHOR]

To evaluate the mechanism of governor vessel electroacupuncture in rats with post-stroke limb spasm by observing the changes of glutathione antioxidant system-related factors. Methods A total of 60 SD rats were randomly divided into the normal group (n=12), sham operation group (n=12) and modeling group (n=36). The middle cerebral artery obstruction model was prepared by thread approach method in the modeling group, and 24 rats with successful modeling were randomly divided into the model group and the electroacupuncture group, with 12 rats in each group. At the 3rd day after modeling, the electroacupuncture group was treated with electroacupuncture at three acupoints of the governor vessel, namely, "Dazhui" (GV14), "Jizhong" (GV6) and " Houhui" (anteromedial of the transverse process of the sixth lumbar vertebra), for 30 min each time, once a day for 7 days. The neurological function of rats was assessed by Zea Longa neurological deficit score. The muscle tension of rats was detected by modified Ashworth dystonia rating and electrophysiological tracing method. The brain tissue water content was measured by the dry-wet weight method. The volume of cerebral infarction of rats was measured by the TTC staining method. The contents of glutathione(GSH), catalase(CAT), oxidized glutathione(GSSG), superoxide dismutase(SOD), and malondialdehyde(MDA) in the cortex of rats were detected by colorimetry. The protein and mRNA expressions of glutathione reductase(GR), glutamate cysteine ligase(GCL)C, GCLM, and glutathione peroxidase 4(GPX4) in the cortex of rats were measured by Western blotting and real-time PCR, respectively. Results Compared with rats in the normal and sham operation groups, the Zea Longa neurological deficit score, modified Ashworth dystonia rating, the volume of cerebral infarction, brain tissue water content, and GSSG and MDA contents in cortex were increased in the model group, the tension signal value and the proteins and mRNA expressions of GR, GCLC, GCLM, and GPX4 in cortex were decreased, and the contents of GSH, CAT, and SOD in cortex were decreased(P<0.05). Compared with the model group, the Zea Longa neurological deficit score, modified Ashworth dystonia rating, the volume of cerebral infarction, brain tissue water content, and GSSG and MDA contents in cortex were decreased in the electroacupuncture group, the tension signal value and the proteins and mRNA expressions of GR, GCLC, GCLM, and GPX4 in cortex were increased, and the contents of GSH, CAT, and SOD in cortex were increased(P<0.05). Conclusion Governor vessel electroacupuncture can improve the severity of post-stroke limb spasm in rats, and its mechanism may be related to the regulation of glutathione antioxidant system in cerebral cortex. [ABSTRACT FROM AUTHOR]

The study used the functional Lactobacillus acidophilus producing α-amylase, protease, phytases and β-mannanase to carry out cooperative fermentation of soybean meal. The effects of the inoculating amount, fermentation temperature, fermentation time and the ratio of water to material on the content of acid-soluble protein were studied by the single factor experiment. On this basis, through Box-Behnken design experiment, the quadratic regression model was established, and the optimal fermentation conditions were the inoculated amount of bacterial liquid of 12.3%, the fermentation time of 78.9 h, the fermentation temperature of 36.8 °C, and the ratio of water to material of 0.9 L/kg. Under these conditions, the crude protein content increased by 15.13%, the acid-soluble protein content increased by 66.91%, hemicellulose content decreased by 24.93%, the free amino acid content was 11.62 times higher before fermentation, the trypsin inhibitor content decreased by 91.68%, the urease activity decreased by 95.67%, the phytic acid content decreased by 83.87%, and the viable bacteria count in fermented soybean meal was 1.37x1010 CFU/g. The study indicates that the composite strain fermentation mode can effectively improve the nutrient composition of soybean meal and remove antinutrient factors, so as to improve the utilization rate of soybean meal and provide a reference for the industrial production of fermented soybean meal. [ABSTRACT FROM AUTHOR]

The preparation methods of iron/carbon composites and the types of iron and its compounds are introduced, including nano-iron, ferroferric oxide, ferric oxide, iron hydroxide, iron-manganese oxide, etc. The characteristics of the composites, such as improving iron leaching rate, improving reproducibility and adjusting pH range, were reviewed, and the relationship between them. Meanwhile, the regeneration method and advantages and disadvantages of the composite material based on the Fenton principle are expounded, and the recycling of the composite material can be realized in the future. Finally, the problems and challenges of the composite material were summarized, and several possible topics for material optimization, environmental impact and cost. [ABSTRACT FROM AUTHOR]

The design and synthesis of photocatalytic materials and their application in environmental pollution control and resource recycling have been reported in many literatures. However, most photocatalytic materials contain transition metal ions, and the environmental risks of leaching 1imit the application of catalytic materials. Silicon carbide (SiC), as the representative of the third generation of semiconductor materials, has a good potential application prospect in environmental pollution prevention because of Is characteristics such as no transition metal ions, high temperature and acid-alkali resistance, strong stability and so on. In recent years, some literatures have reported the synthesis, modification and application of SiC as photocatalyst n environment and resource recycling -fields. However, few temperatures have reviewed the application progress of SiC photocatalyst. In view of the above situation, the progress in the -field of SiC photocatalysis application in recent years was reviewed in tins paper, including synthesis method, doping medication and application, and the prospects of the photocatalyst system were also prospected. [ABSTRACT FROM AUTHOR]

The numerical simulation of the large scale science and engineering problem in the aerospace area relies on the support of High-Performance Parallel Computing(HPPC)and is the engine of the development of HPPC. The paper gives a survey of recent progress of HPPC in the aerospace area and a brief introducion of the HPPC environment. The relative research areas of HPPC of aerospace, including aerodynamic, aerothermal, chemical non-equilibrium, structure, heat protecion, Monte Carlo method and turbulence et al., are classified and described in detail. The dilemma of high parallel efficiency in scientitic computing and low use in engineering compuing, and the diversity of paralel applications and the lack of scientific paralel methods are concluded. Finally, the prospects of the future HPPC development in aerospace area are presented. [ABSTRACT FROM AUTHOR]

Psychological pharmacology is a brand-new discipline that studies the interaction between psychological state and drugs,explores general rules of the effects of mental state on drug activity,and promotes rational use of drugs in clinical practice. Evidence showed that depression could affect the levels of endogenous substances,drug metabolizing enzymes and drug transport protein, thus influencing drug metabolism and efficacy. In clinical practice, medication recognition might affect drug choice and medication compliance of patients. The application of placebo might achieve positive treatment outcomes in certain patients. These research results indicate that attention should be paid to the psychological state of patients in drug treatment. In accordance with changes of physiological and psychological changes of patients,therapeutic regimens should be duly adjusted. Rational drug use education and psychological support should be provided to patients,so that patients' psychological burden could be relieved and therapeutic efficacy improved. [ABSTRACT FROM AUTHOR]

Objective To discuss the therapeutic effect of Liyan Tongqiao Fang (Soothing-throat Freeing-orifice Formula) on tongue muscle contraction in rats after hypoglossal nerve injury by applying nerve-muscle electrophysiology method. Methods Male adult Wistar rats (n = 60) were randomly divided into sham-operation group, model group and Liyan Tongqiao Fang group (each n = 20). The model of hypoglossal nerve injury was established by clamping in model group and Liyan Tongqiao Fang group, while in sham-operation group hypoglossal nerve was only separated without champing. After modeling for 2 d, Liyan Tongqiao Fang group was given Liyan Tongqiao Fang (0. 3 mg/d), and sham- operation group and model group were given the same quantity of saline solution. The threshold strength, single contraction amplitude and tonic contraction amplitude were detected in all groups respectively on the 7th d and the 14th d. Results The threshold intensity of injured tongue muscle increased in model group compared with sham-operation group (P < 0. 05) at the same time point, and decreased in Liyan Tongqiao Fang group compared with model group (P < 0. 05) at the same time point. The threshold intensity of injured tongue muscle increased in model group and Liyan Tongqiao Fang group compared with non-injured tongue muscle within the same group (P < 0. 05). The threshold intensity of injured tongue muscle decreased in Liycin Tongqiao Fang group and model group on the 14th d compared with that on the 7th d (P < 0. 05). The single contraction amplitude and tonic contraction amplitude of injured tongue muscle decreased in model group compared with sham-operation group (P <0. 01) at the same time point, and increased in Liyan Tongqiao Fang group compared with model group (P < 0. 05) at the same time point. The single contraction amplitude and tonic contraction amplitude of injured tongue muscle decreased in model group and Liyan Tongqiao Fang group compared with non-injured tongue muscle within the same group (P < 0. 05). The single contraction amplitude and tonic contraction amplitude of injured tongue muscle increased in Liyan Tongqiao Fang group and model group on the 14th d compared with those on the 7th d (P < 0. 05). Conclusion Liyan Tongqiao Fang can reduce the contraction threshold intensity, promote excitability of hypoglossal nerve-tongue muscle conduction system, improve the contraction ability of tongue muscle, and relieve dysphagia in rats after hypoglossal nerve injury. [ABSTRACT FROM AUTHOR]

Water soluble curcumin nanoparticles (Cur-Ps) were prepared by the simple anti-solvent nanoprecipitation method, using soluble soybean polysaccharide (SSPS) and zein hydrolysate (ZH) as carriers, and the synergistic effect of SSPS and ZH in prepration of Cur-Ps was studied. We expect to provide a new carrier for preparation of Cur-Ps with excellent colloid and oxidation stability. Attributed to poor water solubility of curcumin, the solution of curcumin monomers in deionized water was very turbid. However, the existence of ZH or ZH-SSPS solubilized the curcumin tremendously. The solutions of ZH and ZH-SSPS containing curcumin were yellow and highly transparent. The solubilization results shown that the water solubility of curcumin in ZH solution could reach up to 135, üg/mL when the concentration of ZH was above 2.5 mg/mL, and the addition of SSPS had no effect on the water solubility of curcumin at this concentration. But, when the concentration of ZH was below 2.5 mg/mL, the water solubility of curcumin was enhanced slightly with the addition of SSPS. In pure SSPS solution with a concentration of 3 mg/mL, the solubility of curcumin was only 90, üg/mL, obviously lower than that in ZH solution with the same concentration. These results suggested that ZH plays a leading role in curcumin solubilization in the ZH-SSPS mixture system and this solubiliazation should attributed to the non-covalent interactions between ZH and curcumin, which leading to the formation of ZH-curcumin nanocomplex. Colloidal stability results indicated that at low ionic strength (< 50 mmol/L) or under neutral condition (pH value 7.0), the existence of SSPS had no influence on the particle size distribution of Cur-Ps. However, since SSPS can increase the stability of the protein under acidic and salt-containing solutions, compared with Cur-Ps prepared by ZH only, Cur-Ps fabricated by ZH-SSPS had better colloid stability in solutions with low pH value (4.5 or 2.0) or high ionic strength (>200 mmol/L). Hence, due to the synergistic effect of ZH and SSPS, the curcumin-loaded nanoparticles with small size (< 100 nm) and good colloidal stability can be fabricated. The vitro release study in ethanol-water two-phase system indicated that both Cur-Ps prepared by ZH only and ZH-SSPS solutions had controlled-release effect on curcumin. However, Cur-Ps prepared by ZH-SSPS had better controlled-release effect, and its cumulative release ratio was below 80% in 6 h. The counterpart prepared by ZH only was above 85%. The study on the 1,1-Diphenyl-2-picrylhydrazyl (DPPH) radical oxidation stability of curcumin nanoparticles indicated that the stability of the curcumin was significantly (P<0.05) improved after the nano-capsulation by ZH or ZH-SSPS. This result is mainly due to the shielding effect for curcumin nano-canpsulation as well as the strong antioxidant effect of ZH. The lyophilized Cur-Ps powder prepared by ZH-SSPS had a multihole spongy structure in field emission images by scanning electron microscopy (SEM), which resulted in its redispersibility as high as 90%, showing a significant (P<0.05) improvement compared with the Cur-Ps fabricated by ZH only. Besides, using ZH-SSPS to prepare Cur-Ps powder had a more curcumin content compared with the counterpart. In conclusion, owing to the synergistic effect between ZH and SSPS, ZH-SSPS is expected to be a new material for the preparation of water soluble Cur-Ps. Due to the transparent appearance of the Cur-Ps solution, it has a good prospect in preparation of curcumin-enriched functional drinks. [ABSTRACT FROM AUTHOR]

Aiming at micro environmental variation inside the cave of Mogao Grottoes include temperature, humidity and the concentration of carbon dioxide has significant influence to the preservation of cultural relics consist of murals, statues and so on,a set of micro environment control system were developed. The system mainly was composed of automatic partition doors and wireless transmission network. The controller based on the digital signal processor (DSP) as the core, sheer curtain, sealing curtain, shutter etc were installed on the door. By adjusting shutter's rotating angle,the air volume and wind speed into the cave were controlled. When the natural ventilation cannot adjust the cave micro environment, the method of active air supply makes temperature, humidity in the cave keep constant and decreases the concentration of carbon dioxide. Wireless transmission network consists of wireless environment monitoring sensor,wireless multi function gateway,router and F5 communication module,which realizes the cave micro environment data acquisition and auto door's remote control. The result of experiment shows that the micro environment control system has a certain effect on regulating the micro environmental temperature, humidity and the concentration of carbon dioxide. [ABSTRACT FROM AUTHOR]

In the hybrid power system based on double-input buck converter and power management strategy which has been put forward, we can keep the system working under suitable mode. But when the two IGBT switches at the same time, due to the reverse bias voltage, the flywheel diode wiil cut off. The commercial power current must flow through the photovoltaic that wiil affect measurement of Photovoltaic current seriously. Interleaved dual-edge modulation and inter-lock can solve the problem, theoretical analysis wiil be listed to prove the consistency of the two method. The simulation results of interleaved dual-edge modulation based on Matlab/Simulink model have confirmed the effectiveness. [ABSTRACT FROM AUTHOR]