Service industries play important role in the world economy, and prior results on performance measurement mainly aimed at a specific service sector or enterprise. In this research, a connected graph was defined as a service system network constructed by the general service entities. An indicator system was set up and an extension method proposed to evaluate the performance of the general service system network from both vertical and horizontal dimensions. The vertical dimension means that the service entities may be in different years, and the horizontal dimension means that the service entities may be the same or different types of service system while they may also locate in different regions with different resource endowments. The evaluation method using the indicator system was adopted to contrast the performance among the same and/or different regions, and the evaluation results can improve the individual performance of every service entity and also the whole service system in different years and/or in different performances of the service system network. A sample of a service network which consists of different six-type service entities shows a satisfying result in case study.

 In order to effectively prevent from the risk and control the safety of meat food, and to improve the present situation of meat food safety, the key elements of meat food safety warning are determined as the first grade indexes, which are the supply chain quality of raw materials, production and processing, transportation and storage, quality of sales meat food, as well as market monitoring and management. A warning index system is also derived on the basis of supply chain of food security, and the classical domain and the joint domain of the indexes determined. The extensive prewarning model of the supply chain safety of meat food is proposed and the goal of food security achieved, which may be helpful for proposing the risk strategy of meat food safety by using the Extenic change methods. A modified example shows the feasibility of the method.

For the evaluation problem of hospital financial performance, a new evaluation method is proposed on the basis of error-eliminating theory. Firstly, for hospital financial performance evaluation system the concepts of error, error function and limitloss are given based on error-eliminating theory. Secondly, according the time dimension, a new evaluation index system which contains 10 indexes is built from the aspects of past, present and future. And then, a new evaluation method is proposed by referring to the research related to error-eliminating decision making method. At last, an example is used to prove the operability and rationality of this new evaluation method.

Research on magnetorheological finishing technology at home and abroad is reviewed. According to the development of magnetorheological finishing technology, the current main application of ultra-precision machining principle and progress of magnetorheological compound polishing technology are elaborated, mainly focusing on Magnetorheological Jet Polishing, Ultrasonic-magnetorheological Compound Polishing, Chemo-mechanical Magnetorheological Finishing and Cluster of MRF processing methods and mechanism of material removal. Then the MRF method is compared in terms of surface precision machining, surface integrity and processing efficiency. Finally, a discussion is conducted on how to improve the precision polishing efficiency, forecasting the development of ultra-precision magnetorheological finishing and pointing out the key research direction in the future.

(Sr_0.9Pb_0.1)TiO₃ ceramics were prepared by the traditional high temperature solid-state reaction method. The structural, electrical properties and impedance of ceramics were investigated. XRD results show that the ceramics show typical tetragonal perovskite structure. The resistance states can be switched by applying voltage pulses ±60 V. The phenomenon may be attributed to oxygen vacancies caused by Pb volatilization in the preparation of materials, which can be further confirmed by the impedance spectrum analysis of samples. Oxygen vacancy mechanism is the cause of the changes in the electrical properties by using the Arrhenius formula to calculate the activation energy. These resistance switching behaviors indicate that ceramics can even exhibit resistance switching performance as well as thin film devices or single crystal devices and provide the possibility of new switching devices with the memory effect composed of ceramics.

A resistivity measuring system of thermoelectric material was designed with the LabVIEW as software and the circuit of control and data acquisition as hardware, in order to overcome the problem of low resistivity measurement accuracy. The measurement system has the characteristics of high measuring accuracy, wide measurement range, friendly interface and rich display information. It has an ability to finish manual measurement or automatic measurement. At the same time, it can change the direction of current with controllable frequency in order to improve the measurement accuracy. Experiments show that the relative error within -0.25%~+0.25%. It is a valuable measurement system for property measurement of thermoelectric material.

A monitoring software of the host computer based on distributed optical fiber fire detection is designed, which can observe real-time temperature laying optical cable, and realize realtime alarming according to the temperature. The basic principles of distributed fiber optic sensing system, structure and optimization design of signal acquisition module of the distributed optical fiber sensing system are introduced, focusing on the PC monitoring software structure and function, and writing PC software with Qt. This system can monitor and accurately display the spatial temperature distribution of the fiber optic fiber, and has the characteristics of friendly interface, strong real-time and so on.

Based on the aging mechanism of automotive catalyst, a comprehensive performance test bench for automotive catalysts is established to have a 160-hour accelerated aging on the catalyst. The performance of catalyst before and after accelerated aging is compared, and an analysis of correlation and emission by European test cycle for a vehicle after its catalyst being aging on the bench and real vehicle is made. The results show that the light-off temperature of CO, THC, NO_x rises by 38.5%, 28.4% and 37.3% respectively after rapid aging of the catalyst on the bench for 160 hours. In addition, compared with the real vehicle catalyst aged after 160 000 km, the emission of THC, CO, NO_x, NMHC among the vehicle with the 160 h-rapid aging catalyst on the test bench increases respectively by 8.6%, 11.3%, 3.8% and 13.7%.

For analyzing from the point of the whole system the operational energy consumption of central air conditioning systems with air source heat pump unit, the global energy intensity index based on the thermal comfort of the conditioned space is put forward. It includes the energy consumption of all the system subloops. Through the decomposition of （Energy Intensity，EI）, the e-p analysis method for the whole system and its subloops is built, which can easily analyze the change of the specific consumption  (e)  and delivered fluid ratios (p) on EI. It is indispensable to decrease the specific consumption (e) and delivere fluid ratios(p) of each sub-loop in order to decrease the EI of HVAC systems.

A new type of single-phase high power factor charging and discharging equipment for accumulator is presented. The equipment is comprised of two parts, i.e., single-phase PWM rectifier and bidirectional DC/DC converter. The single phase PWM Rectifier is controlled on the basis of d-q reference frame, and it is combined with PLL so that the charging and discharging equipment can achieve sinusoidal current at the network side and unit power factor charging and discharging. The bi-directional DC/DC converter can not only achieve bidirectional flow of energy in the equipment, but can also charge the accumulator at a constant current and a constant voltage, and discharge it at a constant current. Experimental results verifies the effectiveness of the equipment.

 Phase-contrast spectral optical coherence tomography (PC-SOCT) method based on temporal phase unwrapping is proposed, for continuous measuring the depth-resolved deformation fields. The interference pattern between reference plane and the sample is recorded firstly, and then the deformation field is evaluated after restoring the phase difference maps by temporal phase unwrapping algorithm. The advantages of the method are high measurement speed, high sensitivity, and strong anti-noise ability. An experiment system with depth range of 6mm and depth resolution of 15μm is built, and the method is validated respectively by measuring the deformation of curing process and thermal deformation inside a silicone rubber film. It is proved that this method is very suitable for studying nondestructively the dynamic mechanical properties of internal polymers.

A set of micro-photographic lenses, with large aperture and high resolution, has been designed based on Д. C. Boпocob formula, and its initial configuration is calculated through the PW method. The structural rationality of lenses is systematically examined in NSC（Non-Sequential Component）situation. The F-number of the lens is 2.2, FOV angle is 65°, the total length of optical system is 6.13 mm, and the effective focus is 4.5 mm. The lenses system consists of 4 plastic aspheric lenses and 1 IR filter, in which the lenses of No.1, 3, and 4 are positive lenses, No.2 lens is negative lens, and the aperture stop is placed in front of the first lens. The optimized results indicate that RMS spot radius at each field is almost less than the radius of Ariy disk, the MTF value is more than 0.54 at 1/2 Nyquist sampling frequency, and the distortion is less than 2%. The lenses system equipped with AR8033 CMOS from Aptina has formed applicable micro-photographic lenses of 8 mega-pixel.

 The previous backlight image detection algorithms such as intensity histogram-based method and the YCrCb histogram-based method are low in accuracy rate. A backlight image detection algorithm based on details is presented. The change of the number of details under various Gamma correction is analyzed for the determination of backlight images. The experimental results show that the proposed method outperforms the intensity histogram-based method and the YCrCb histogram-based method.

The key challenge of large scale face clustering is to extract effective facial features and construct an accurate model with less time complexity. In this research, effective features are first extracted based on convolutional neural network (CNN). Then K-means, a classical cluster algorithm, and a state-of-art algorithm named CFSFDP (Clustering by Fast Search and Find of Density Peaks) are used to cluster large scale face images. Rand Index, entropy, F₁-measure and the visualization of confusion matrix are further applied to comprehensively assess clustering quality. All the tests are under the condition of the increasing numbers of clustering centers. Experiment results demonstrate that K-means has a better performance as well as a much higher speed than CFSFDP. This conclusion is believed to shed new light in the area of face clustering.

 Since informal words and expressions are widely used in miscroblogs, sentiment analysis of the microblogs is a difficult scientific problem, especially with the data in imbalanced sentiment distribution. GWCRF (Gaussian Mixture Distribution Word2vec CRF), a method based on pseudo-sample generation technique and Conditional Random Field (CRF) for sentiment analysis of microblogs in imbalance distribution is presented. In the proposed method, firstly, the Gaussian Mixture Distribution is leveraged to generate pseudo-samples, which can increase the samples of minor classes for balancing the train data sets. Secondly, Word2vec technology is leveraged to enrich the microblog message and overcome the problem that sentiment lexicon is not large enough. Moveover, the CRF model is proposed to apply in the above balanced and extended train data sets. Experimental results on the microblog data demonstrate that this method outperforms the state-of-art methods in sentiment analysis of the microblog data sets with imbalanced sentiment distribution.

The effect of building layout forms on thermal environment in residential districts is focused on. Based on typical residential districts in South China, four typical layout forms are established. Computational fluid dynamics (CFD) technique is used to simulate the thermal environment in residential districts at different predominant wind for different architectural complex orientations. The results show that layout forms and architectural complex orientation have a great influence on thermal environment, and the thermal environment mainly depends on the ventilation in the residential district. When the predominant wind is east wind or southeast wind, staggered type and determinant residential districts have relatively good thermal environment, and it is appropriate for them to face the north or the south.

 To certain extent, existing buildings are limited by design and technology. Their poor energy efficiencies cannot reach current standards and cause irreversible influences on the environment. Using Ecotect, the efficiency of a small museum in Zengcheng City is simulated and analyzed. The result demonstratesthat after using natural ventilation and heat insulation designs, the architectural environment including lighting is much improved, which may provide a theoretical basis for architectural enhancement in the Lingnan region.

At present, the governance of related party transactions has become the important problems faced by countries in the capital market. Domestic and foreign scholars have also conducted extensive research. The literature of related party transactions at home and abroad is reviewed and summarized. From the perspectives of “tunneling” and “propping” , the influence of related party transactions on firm value is explored and the research limitations and study fields for further development pointed out. Finally, some suggestions are made on the regulation of related party transactions of the company.