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In order to monitor a wide distribution, quantity, long working hours for industrial electric equipment, this paper provides a solution based on Zigbee wireless sensor networks. The core CC2530 chip is the control center of the entire system, and holzer sensor is selection as a current sensor. Through the wireless network which is composed of terminal nodes, routing nodes and coordinator, the collected data is sent to PC terminal and displayed. The experimental results show that the wireless sensor network can effectively and reliably collect current harmonics of electric equipment and transfer to the PC terminal in time.

The industrial tank level monitoring solution with wireless data transmission is designed in this paper. With the aid of ultrasonic sensor technique, the tank level monitoring can continually measured without manual operation. By the radio frequency trsanceiver, the monitoring result can be seen in monitoring room. The whole hardware and software solutions are given in the paper. The experimental result demonstrated that the monitoring data is accurate, the system is stable and reliable.

The micro-seismic signal acquisition and transmission is an important key part in geological prospecting. This paper describes a bran-new solution of micro-seismic signal acquisition and remote transmission using Zigbee technique and wireless data transmission technique. The hardware such as front-end data acquisition interface made up by Zigbee wireless networking technique, remote data transmission solution composed of general packet radio service (or GPRS for short) technique and interface between Zigbee and GPRS is designed in detail. Meanwhile the corresponding software of the system is given out. The solution solves the numerous practical problems nagged by complex and terrible environment faced using micro-seismic prospecting. The experimental results demonstrate that the method using Zigbee wireless network communication technique GPRS wireless packet switching technique is efficient, reliable and flexible.

To find environment-friendly and low pest resistance natural mosquitocide, The insecticidal activity of the essential oil extracted from fructification ofIllicium verumagainstAedes albopictusandCulex pipiens quinquefasciatuswere investigated. The compositions of this oil was analyzed by GC-MS. The results are given as follows, The 24-h LC50values ofIllicium verumessential oil for I, II, III, IV-instar larvae and pupa ofAedes albopictus/Culex pipiens quinquefasciatuswere 4.93/2.04, 8.36/2.96, 11.88/8.42, 16.10/13.13 and 42.31/75.12 μg·mL-1, respectively. A total of 18 compounds identified fromIllicium verumoil, the major volatile components were trans-anethole with the peak area percentage of 94.8%, followed by 1-(3-methyl-2-butenoxy)-4- (1-propenyl) benzene (3.2%), estragole (0.4%), linalool (0.3%) and limonene (0.3%). The results indicates thatIllicium verumoil can be developed into a botanical mosquitocide.

This work used in-situ scanning electron microscopy method to investigate the small fatigue crack behavior of the aluminum alloy 2024 laminated structure produced by ultrasonic consolidation process. The influence of local microstructure on the crack propagation of the laminates after different heat treatments (T4 and T62) has been compared and discussed. It was found that both the precipitations and the interfaces of the layers could retard crack growth and alter the growth direction, and the effect of interfaces was much stronger. Due to the higher ratio of the toughness to bond strength, the barrier effect of the interfaces on impeding the fatigue crack growth in specimens after the T4 heat treatment was more evident.

The paper introduces the system design for wireless data acquisition and remote transmission scheme of micro-seismic signals. Zigbee wireless network communication technique is used for wireless data collection of seismic wave detection sensor, Meanwhile GPRS wireless packet switching technique is used to complete remote data transmission. The solution is the combination application of Zigbee and GPRS to analyze and monitor micro-seismic signal. The experiment of the system demonstrates that the solution is stable, reliable, efficient and practical when used in the micro-seismic signals remote transmission.

The paper introduces how to build a standard Chinese head to be used for numerical calculation of specific absorption rate of electromagnetic radiation using MAYA modeling software, including the demand background of building a standard Chinese head, international research status, as well as the urgency of relative research and study at present in China, and discusses the key steps of the standard Chinese head building using MAYA modeling software model, and the outlook for the numerical calculations after the modeling completed.

The application of industrial robots in modern industry is very common, it not only can be used for manufacturing, and assembly areas can also be used. Its development and progress, especially in the development of intelligent robot can be considered to reflect a country's scientific and technological strength and technical level. In this paper, a detailed study of the control structure of the robot, on this basis, the design of a robot control system architecture, hardware and software design. In last with VC + +6.0 developed a control interface for a robot control system.

In order to real-time automation detection of conveyor belt running status, found the mechanical fault in time and processing, to ensure mechanical automation reliable and safe operation, to avoid major accidents. This paper designed a kind of X-ray power conveyor belt nondestructive detection system of the detector, Proposed design scheme based on FPGA + ARM detector; Adopts Xilinx companys cost-effective FPGA chip Spartan-3E and Samsung launched using 32-bit RISC microprocessor of ARM chips S3C2440A, Design the hardware circuit of detector; And has carried on the experiment and debugging, has reached the design requirements.

The effects of melt temperature on the as-cast structure and mechanical properties of AZ31B magnesium alloy were studied through a home-made electrical resistance furnace. The results show that the equiaxed dendrite size of AZ31B magnesium alloy under water-cooled metal cooling is linearly decreased with increasing the melt temperature below 850 °C, whereas the size changes little over 850 °C. The second phases in the microstructure are firstly refined; however, they are coarsened when the melt temperature exceeds 850 °C. With the increase of melt temperature, the tensile strength, yield strength and elongation of AZ31B magnesium alloy samples are rapidly enhanced first, then are slightly declined. When the melt temperature is increased to 850 °C, the tensile strength, yield strength and elongation reach 260 MPa, 75.4 MPa and 27.57%, respectively. The tensile strength, yield strength and elongation are increased by 15%, 13% and 61%, respectively compared with 750 °C. DSC analysis shows that the nucleation temperature is decreased, the critical nucleus radius is lessened with the increase of melt temperature, which increase the degree of supercooling and heterogeneity nucleation rate in melt, and the growth rate becomes larger with the increase of the degree of supercooling. That is the reason why the grain size is first rapidly decreased, and then is little increased.

The repellent activitie of Cinnamomum japonicum oil against Aedes albopictus were investigated. The main volatile chemical components of the oil were qualitatively studied. The main results are given as follows. Cinnamomum japonicum oil providing absolute protection against Ae. albopictus in laboratory and field for 2.33 ± 0.63 h, 3.85 ± 0.21 h at concentration of 1.5 mg/cm2, respectively. A total of 28 compounds were identified. The main components of the essential oil were borneoll (28.30%), 1,8-cCineole (20.98%), (-)-bBornyl acetate (6.65%), linalool (5.94%), (-)-.alpha.-terpinol (5.87%), caryophyllene oxlde (5.11%). The results indicates that Cinnamomum japonicum oil has a great potential to be developed into a ecofriendly mosquito repellent.

This article discusses the application of the data envelopment analysis in the energy efficiency measure of the industries, which thinks that according to energy consumption intensity industries can be divided into three categories, high, middle and low energy consumption, respectively discussion will have more theoretical significance. Later, this paper chooses constant returns to scale model, respectively measures total factor energy efficiency to three kinds of Inner Mongolia industrial industries, and summarizes the changes and characteristics of energy efficiency in these three kinds of industries. Result shows that, the energy efficiencies among high energy consumption industries are similar and recently they began to decline; the energy efficiencies of middle energy consumption industries are relatively high, but there are some differences between industries; in most low energy consumption industries energy efficiencies are low and the fluctuation is lesser, but several fluctuations are bigger which industries are worth our attention.

As our material life level unceasing enhancement, people's health consciousness and Care awareness has greatly improved compared with the original. At the same time with the aging of the population of China, the health situation and health awareness of the elderly is also deeply concerned by the society. But we traditional treating lumbocrural pain and cold diarrhea disease clinical therapy method in physiotherapy will occur Liquid steam output terminal area open, resulting in uneven distribution of the liquid, the temperature is not constant, limited efficacy, resulting in low utilization of the drug, at the same time, the medicine steam output terminal can only carry on the parallel movement, the treatment scope is limited, and the instrument is not easy to carry .Therefore, it is imperative to develop a new clinical therapeutic instrument. We will be based on the traditional Chinese medicine fumigation treatment, and develop a more humane intelligent physical therapy fumigation system. In this paper, we have developed a system of heat treatment for hospitals and communities. This system mainly consists of two systems: the first is the temperature control system; and the second is the traditional Chinese medicine steam transmission system, Among them, the temperature control system is the key parts in the study of this paper. In this paper, the overall design of the traditional Chinese medicine fumigation apparatus and specific design of each part are all introduced in detail.

Effects of melt superheating holding time on microstructure and mechanical properties of AZ31B magnesium alloy were studied. The results show that the grain size of AZ31B magnesium alloy is gradually increased with the elongation of holding time. The grain is the finest without insulation work, and the increase amplitude of grain size is the most when holding for 20 minutes in this experiment. The higher is the melt superheating temperature, the larger the increase amplitude of grain size when holding for 20 minutes is. The tensile strength, yield strength and elongation percentage of AZ31B magnesium alloy specimens are small declined with the elongation of holding time under lower melt temperature. At 850°C or 900°C, the mechanical properties are rapidly declined with the elongation of holding time when holding time is less than 20 minutes, whereas the mechanical properties are slight increased when holding time is more than 20 minutes. DSC analysis shows that the elongation of holding time causes the increase of solidification onset temperature and the augment of solidification range, so the undercooling degree and nucleation rate are decreased in the melt, which result in the grain coarsening and the mechanical properties decrease.

This paper designed a new edge detection[1,3] operator based on Krisch edge detector and direction encoding and combining the local average, while proposed heuristic search algorithm in the noise image based on segmentation edge of the self-enhanced. First, use small-scale Gaussian filtering in the noise image, and then use this edge detector for edge detection, and trajectory of each sub-search self-reinforcing, and finally according to the degree of self-reinforcing accumulation of noise to obtain the image edge. The results show that: This algorithm can effectively extract the real object from the noise, and to maximize the retention of details. And the performance better than Krisch and has some speed advantage

At present, small and medium-sized enterprises have played an important role in China's economic development. Starting with the introduction of modern industrial engineering, this paper firstly pointed out the problems of small and medium enterprises in the development process, analyzed the need for the implementation of industrial engineering, and finally proposed the application patterns and development trends of industrial engineering in Small and medium-sized enterprise management.

With the improvement of people's living standards, more attention is given to health status. This is a higher demand for our modern medical facilities. How to let the sign detection equipment out of intensive care unit (ICU), out of hospital, become accessible and can be used for real-time monitoring of the life necessities is a major topic currently. Based on this, the CSN808 module is used to design human physiological parameters monitoring system, with single chip microcomputer, and the real-time monitoring of human physiological parameters is realized. The module is small in size, easy to be installed, and can be programmed by microcontroller to achieve the LED real-time display of heart rate, blood pressure, blood oxygen saturation and respiration rate measurements. The results show that the monitoring accuracy and operability of the system has achieved the expected requirements, and the actual values are basically the same. The module can work normally and right.

The system adopts C/S structure as the system structure, using JSP as a developing platform, Microsoft SQL Server database. At the same time, the whole system is developed combined with the basic theory of project management information system development, structure and basic principle and system developing steps. The system not only includes policy information entering, generating and managing compensation, but also includes creating different types of insurance type and editing corresponding types of payment information besides the customer and the employee information management. The purpose of this effective system is designed to improve the work efficiency of insurance companies and reduce the cost of insurance companies.

This paper examined the relationship between the energy efficiency and the environmental pollution. By using the data of energy intensity and economic loss caused by environmental pollution (ELP) in China from 1989-2009, a simultaneous equations was developed. The result of two-stage OLS estimation suggested that the energy had exerted positive influences on the decreasing of the environmental pollutions. By enhancing the energy efficiency and adjusting the industrial structure and energy consumption structure, China is exploring a road for sustainable development in the energy conservation.

Resource-based city has many characteristics of urban sustainable development, but because of resource's gradual depletion, population explosion and the depravation of natural ecological environment, it is more special in the road of sustainable development. The sustainable development of resource-based city has more urgency, complexity and difficulty, so traditional linear model of economic development has been unable to realize its sustainable development. Building on circular economy characterized by closing material cycle, to achieve the harmony of human and nature, the economic development and environment protection win-win strategy goal is an inevitable trend.

To achieve human face identification, this paper adopts the method of geometric feature extraction and the enlargement of image interpolation on the basis of the completion of face detection. First of all, the input digital image will be normalized to reduce the complexity of the image, and then the feature of human face will be extract. With the feature information extracted, we can construct the feature vector and assign different weights to different feature vector. Weight is interpreted as the EXP obtained after a large amount of training experience is gained. Finally, to get the similarity of picture, the bilinear interpolation method is adopted on the basis of the nearest interpolation. Thus, we will get the results of face identification according to the similarity quality. Through the development and implementation of practical programming, this paper proves the feasibility of such method.

BACKGROUND In the current meta-analysis, we focus on the exploration of percutaneous catheter drainage (PCD) in terms of its overall safety as well as efficacy in the treatment of infected pancreatitis necrosis based on qualified studies. METHODS The following electronic databases were searched to identify eligible studies through the use of index words updated to May 2018: PubMed, Cochrane, and Embase. Relative risk (RR) or mean difference (MD) along with 95% confidence interval (95% CI) were utilized for the main outcomes. RESULTS A total of 622 patients in the PCD group and 650 patients in the control group from 13 studies were included in the present meta-analysis. The aggregated results indicated that the incidence of bleeding was decreased significantly (RR: 0.42, 95% CI: 0.25-0.70) in the PCD group as compared with the control group. In addition, PCD decreased the mortality (RR: 0.76, 95% CI: 0.41-1.42), hospital duration (SMD: -0.22, 95% CI: -0.77 to -0.33), duration in intensive care unit (ICU) (SMD: -0.13, 95% CI: -0.30 to -0.04), pancreatic fistula (RR: 0.73, 95% CI: 0.46-1.17), and organ failure (RR: 0.91, 95% CI: 0.45-1.82) in comparison with the control group, but without statistical significance. CONCLUSION Our findings provide evidence for the treatment effect of PCD in the decrease of bleeding, mortality, duration in hospital and ICU, pancreatic fistula, organ failure as compared with the surgical treatment. In conclusion, further studies based on high-quality RCTs with larger sample size and long-term follow-ups are warranted for the confirmation of PCD efficacy in treating infected pancreatitis necrosis.

T800 alloy with nominal chemical compositions of Co-17.5Mo-28.5Cr-3.4Si (wt%), T800 alloy with an 5.0 wt% iron addition and T800 alloy with additions of both 5.0 wt% iron and 5.0 wt% aluminum were produced by the vacuum arc re-melting method, in order to investigate the effect of Fe and Al additions on microstructure, hardness and oxidation performance of T800 alloy. The weight gains per unit area vs. time plots were obtained during isothermal oxidation at 800°C and 1000°C in air. The oxide morphology and microstructure were analyzed by X-ray diffraction (XRD), scanning electron microscopy with EDS (SEM/EDS). The results showed that Fe addition refined Laves phase in the T800-Fe alloy and volume fractions of the primary Laves phase decreased for T800-Fe alloy and T800-Fe-Al alloy. Hardness measurement showed no significant difference for the three alloys. The T800-Fe alloy exhibited a slightly reduced weight gain during air-exposure at 800°C, however, a pronounced improvement of oxidation resistance was visible for T800-Fe-Al alloy. In oxidation test at 1000°C, T800-Fe alloy and T800-Fe-Al alloy showed significantly low weight gains compared to the T800 alloy, especially the latter. Its oxidation kinetics was more stable during later oxidation stage in the present oxidation time. Besides, T800 alloy and T800-Fe alloy presented scale spallation at different degree but no oxide spallation was observed for T800-Fe-Al alloy.

Background: There is increasing evidence demonstrating the role of human trophoblast cell surface antigen 2 (TROP2) in cancer development and progression. However, their prognostic value in Epstein-Barr virus (EBV) associated nasopharyngeal carcinoma (NPC) remains to be elucidated. Method: The prognostic significances of TROP2 and Ki-67 were determined by immunohistochemistry in 58 NPC samples. TROP2 mRNA expression level and biological functions were evaluated. The presence of EBV was assessed using in situ hybridization. Analyses were conducted on the association between each of these variables as well as clinical outcome. Results: TROP2 was exhibited over expression in 64% of NPC samples and significantly associated with highly proliferative tumor cells (P = 0.05) and lymph node metastases (P = 0.03). Overexpression of TROP2 significantly correlated with worse overall survival (P = 0.026) and poor disease-free survival (P = 0.021). By univariate analysis, high expression of TROP2 significantly correlated with patients with distant metastases, Ki-67 and EBV infection. Multivariate analysis further revealed that TROP2 along with Ki-67 and distant metastasis are independent prognostic predictors for NPC patients. Conclusion: Our findings have demonstrated that overexpression of TROP2 appears to be an independent predictor for poor clinical outcome in NPC. The strong correlation of overexpression of TROP2 with Ki-67 and distant metastases indicates a potentially therapeutic strategies targeting TROP2 for NPC patients.

The best approximation method of equiripple is one of finite impulse response (FIR) filter design method. The principle of minimizing the maximum deviation is adopted here, and the best match of frequency response between the ideal and the actual filter can be achieved. The paper describes how the equiripple approaching method is used to establish a model of FIR band-stop digital filter (BSF), and gives the running result of FIR BSF under the MATLAB environment. The experiment result demonstrates that the performance of the solution is stable, the effect is good and the expected purpose has been achieved.

We can usually meet some complicated mathematics operations in scientific research and designing soft, though there are few functions in Visual Basic application. This paper introduces using COM Builder and DDE-two design methods of integration of Visual Basic and engineering calculate software MATLAB by examples. The excellence of the integration is proved by data statistic and FFT. Development foreground is mentioned subsequently.

According to the short-time Fourier transform theory and principle of digital filtering, this paper established a mathematical model called collection of voice signal collection at different spectrum. The voice signal was a non-stationary process, while the standard Fourier transform only applied to the periodic signal, transient signals or stationary random signal. Therefore, the standard Fourier transform could not be directly used for the speech signal. By controlling the input different types and parameters, this paper analyzed the collected original voice signal spectrum with the use of MATLAB software platform. At the same time, it realized the extraction, recording and playback of the speech signal at different frequencies. Therefore, the waveforms could be displayed obviously on the graphic user interface and voice effect could be more clearly. Meanwhile, the result was verified by the hardware platforms, which consisted of TMS320VC5509A [1] chip and TLV320AIC23 voice chip. The results showed that the extraction of voice signal under different spectrum model was scientific, rational and effective. http://dx.doi.org/10.11591/telkomnika.v11i5.2498 Full Text: PDF

With the rapid development of internet technology and the increasing demand for internet, intelligent design of internet interface has become very important. In this paper a new Ethernet interface solution based on TCP/IP protocol is realized by using TMS320LF2407A and RTL8019AS, in which the problem of data acquisition and its immediate network transmission is effectively solved. The results of experiments demonstrate that the performance of this Ethernet interface hardware is stable and the solution is compliant with TCP/IP protocol. In the paper, the whole schematic block and its hardware are explained; meanwhile, its software structure and its work procedures are introduced and analyzed

In view of the flaw of artificial guardianship that exists in the medical transfusion guardianship process at present, this paper develops a kind of intelligent transfusion guardianship meter based on the wireless sensor network. It is compose of the following components, including the infrared detection module, ZigBee wireless transmission unit taking CC2530 as the core controller and step motor control module. Adopt the operating system of TinyOS and nesC, which faces wireless sensor network, to carry on the software design. This kind of intelligent transfusion guardianship meter, based on the wireless sensor network, is easy to operate, and may reduce the occurrence of transfusion accidents effectively.