bluuebunny/crossref_metadata_2025 huggingface dataset:
Easy Precipitation Method for Preparation of Cerium Added La2O2SO4 Used for Oxygen Storage
Authors: Shen Wei Hua , Naito Shuichi
Published: January 2014

The present work gives a simple precipitation method for preparation of lanthanum oxysulfate and cerium modified lanthanum oxysulfate by using lanthanum nitrate and ammonium sulfate as precursor in the presence of ammonia. The XRD, TEM, XPS, and N2 sorption measurements have been adopted to characterize those materials. The present work demonstrates that cerium addition can promote the oxidation and reduction process between lanthanum oxysulfide (La2O2S) and lanthanum oxysulfate (La2O2SO4). The cerium doped La2O2SO4/La2O2S oxygen storage system showed the replacement of cerium for some La site to form a stable structure and no sulfur leakage took place in the process of redox cycle. The oxidation temperatures of Ln2O2S to Ln2O2SO4 decrease more than 150 °C for cerium doping samples; and the reduction temperature of La2O2SO4 to La2O2S in hydrogen decreases about 50 °C. The redox cycle between Ce3+ and Ce4+ has been considered response to the promotion of the redox cycle.
Study on Countermeasures of Water Pollution Accident after Chemical Industry Fire
Authors: Wang Yuan Yuan , Wang Bing Qiang
Published: January 2014

Nowadays, fire forces should incorporate the idea of environmental protection and green fire to the rescue action. Every year fire forces dispose of many chemical fire, in the disposal process the surrounding ecological environment should be fully considered , especially the impact on the local water area after the disposition. At present the effect of pollutants on the environment is often neglected, so the fire rescue operations of water pollution prevention is a appreciable problem, we should think and study the countermeasures of water pollution accident for chemical industry fire.
Monodispersion Soot Interference Attached on the Protection Windows on NO2 Concentration Accuracy Using NDIR
Authors: Zhao Yan Jun , Gao Cheng Bin
Published: January 2014

NDIR method is one of the important nitrogen dioxide concentration measurement methods. The soot attached on the protection windows, the original and the transmission light intensity on the nitrogen dioxide is attenuated because of the soot absorption and scattering and the received nitrogen dioxide Characteristic absorption wavelength light intensity is deviated from the theoretical absorption light intensity, so the nitrogen dioxide concentration measurement accuracy is decreased. The protection window pollution interference caused by the monodispersion soot is discussed in this paper. The numerical simulation based on the Mie theory results show that the nitrogen dioxide concentration measurement accuracy is related to the soot concentration, soot average diameter, soot diameter distribution and so on. The solution method of the windows monodispersion soot pollution interference is brought out and the nitrogen dioxide concentration measurement accuracy can be improved.
Protection Windows Interference of the Multidispersion Soot on NDIR NO2 Concentration Accuracy
Authors: Zhao Yan Jun , Gao Cheng Bin
Published: January 2014

NDIR method is one of the important nitrogen dioxide concentration measurement methods. The original and the transmission light intensity on the nitrogen dioxide attached on the protection windows is attenuated because of the soot scattering and absorption and the received light intensity on the nitrogen dioxide Characteristic absorption wavelength is deviated from the theoretical absorption light intensity, so the nitrogen dioxide concentration measurement accuracy is decreased. The protection windows pollution interference caused by the monodispersion soot is discussed in this paper. The numerical simulation based on the Mie theory results show that the nitrogen dioxide concentration measurement accuracy is related to the soot concentration, soot diameter and so on. The solution method of the windows pollution interference is brought out and the nitrogen dioxide concentration measurement accuracy can be improved.
Transition of Land Cover Characteristics at Wild-Fired Watershed
Authors: Son Kwang Ik , Son Gyo Chang , Kim Hyung Joon , Kim Jung Woo
Published: January 2014

Wild fires in a mountain area cause severe runoff. The runoff causes secondary mal-effects such as soil erosion and environmental contamination. Korea had suffered from serious soil yield problems at Imha reservoir in 2003. The muddy flow in the reservoir lasts for an years at that time and the water resources problem had prevailed around the watershed. But there was no reliable method in predicting the amount of soil yield and developing count measures against soil erosion. The goal of this research is to find the sustainability transition of land cover characteristics in a wild-fired watershed. For the success of this research, experimental watershed which had suffered from wild-fires was operated last five years. With the collected field data, the transition of land cover characteristics of watershed was analyzed. It was found that the land cover factor was increased about one hundred times at first year after the wild fire. Then it decreases constantly until it remains stable condition which is reached at fourth year after wild-fires.
Absorption of Hg (II) Form Aqueous Solution onto Double Crosslinked Amphoteric Cassava Starch Resin
Authors: Li He Ping , Huang Yun Yan , Yuan Jin Wei , Yang Guan Wei , Lv Hu Qiang , Yang Shi Jun
Published: January 2014

Sodium polyphosphate-crosslinked starch was synthesized by using cassava starch and sodium polyphosphate as main material and crosslinked agent individually. On above basis, double crosslinked amphoteric cassava starch resin was synthesized through three steps of reactions, which included the inner-crosslinked reaction of starch with N,N'-methylene bisacrylamide, the grafted reaction of the obtained copolymer with dimethyl diallyl ammonium chloride (DMDAAC) and the grafted reaction of the obtained copolymer with acrylic acid. The product was characterized by scanning electron microscopy (SEM). The results indicate that the cassava starch was modified successfully. Adsorption behavior of Hg2+ was studied in the condition of different adsorption time, and found that the removal rate and the adsorption capacity of Hg2+ reached up to 95.98% and 191.97 mg/g respectively.
Preparation of Titanium Dioxide Nanotube Arrays and Photocatalytic Degradation of Methyl Orange
Authors: Xu Ying Cao , You Hong
Published: January 2014

This paper adopted electrochemistry anodic oxidation method for preparing TiO2nanotube array membrane on a pure titanium sheet. The results showed that TiO2nanotube arrays were regularly obtained when anodizing voltage at 25V, anodizing time in 60min , NH4F concentration at 0.25mol·L-1, and volume ratio of glycerol and water at 2:1. Using of this titanium dioxide nanotube array photocatalyst, and Under light of ultraviolet lamp, the photocatalytic degradation of methyl orange solution was studied in this paper. The main factors affecting the test selection was: the concentration of methyl orange solution (5mg·L-1, 10mg·L-1, 15mg·L-1, 25mg·L-1, 35mg·L-1), pH of methyl orange solution (2.0,2.5,3.0,3.5, 4.0,5.0,5.5,6.0), catalytic time (30min.60min, 90min, 120min, 150min, 180min, 240min), UV light source (6w, 11w, 15w).
Occupational Exposure Assessment of CaCO3 Nanoparticles Using a Multi-Metrics Approach
Authors: Zhao Peng , Tang Shi Chuan , Liu Jie Min , Wang Yu Qian , Yu Zai
Published: January 2014

The possible exposure to nanoparticles (NPs) were investigated in a nanosized CaCO3 manufacturing plant using a multi-metrics approach: mass concentration, number concentration, surface area (SA) concentration. The mass concentrations of particle ranged from 0.1497 to 3.2647 mg/m3 for area samplings. The SA concentrations of particles ranged from 149 to 3007μm2/cm3. The number concentrations of particle ranged from 3.56×1010 to 4.07×1011 pt/m3. The particle SA concentrations exhibited the same trend as the number concentrations, and the variability of these two exposure metrics between the eight areas was greater than the mass concentration. This indicates that occupational exposure assessments using mass concentration of NPs maybe underestimate their toxicity. The number concentrations had better linear relationship with SA concentrations versus mass concentrations (coefficients of correlation, R=0.84 and 0.75, respectively), and the mass concentrations had weakest linear relationship with SA concentrations (R=0.61). The surface area and number metrics may be a more suitable metric for NPs occupational exposure.
Enrichment and Detection of Dichlorvos and Methamidophos on Carbon Nanotubes
Authors: Tan Sheng Long , Tang Xiao Ping , Tang Xu Dong
Published: January 2014

Multi-walled carbon nanotubes were used as solid phase extraction materials. Organophosphorus pesticide aqueous solution in a given concentration was enriched by carbon nanotubes and then eluted with eluant. The content of organo phosphorus pesticide in the eluent was evalutated with gas chromatograph and calculates recovery. At room temperature, the best enrichment condition was determined according to the enrichment time. By using ethyl acetate as eluent, elution condilions for higher recovery were determined according to the eluting temperture and time under neutral conditions. The results showed that carbon nanombes for dichlorvos enrichment approached 100% in weight after 3 hours,but only had limited influence on the enrichment of methamidophos. Under neutral conditions of 60°C and elution for 3 hours, dichlorvos recovery rate reached 75.9%. Therefore, carbon nanotubes can be used for dichlorvos extraction and analysis in actual water samples.
Effect of Bottom Blowing Time and Bottom Blowing Rate on the Nitrogen Content of High Nitrogen Steel
Authors: Zhang Rong Hua , Wu Biao
Published: January 2014

The Cr18 - Mn18 steel was prepared by the high temperature and high pressure reaction kettle. With bottom blowing time and bottom blowing flow as object to do single factor experiment, the relationship between the nitrogen content in steel smelting process and the bottom blowing time, the bottom blowing flow were studied.The research results show that when the other conditions must be, the nitrogen content in steel increases with the bottom blowing time increasing gradually, when the bottom blowing time reach more than 35 min, the variation of nitrogen content in steel decreases. With the increase of bottom blowing flow rate, the nitrogen content in steel increases gradually, when the bottom blowing flow rate reaches more than 0.24 m3/h, the nitrogen content in steel close to the maximum value and does not change with bottom blowing flow rate.
Research on Applied Technology and Tidal Current Control with Numerical Simulation of Pulandian Bay
Authors: Chen Hao , Chen Fu Li , Zhu Yong Ying , Zhu Li Ming
Published: January 2014

As the new urban core area and the center of Dalian, Pulandian Bay shoulder the mission of the coastal economic growth in Liaoning province. In view of the present urgent pollution situation in the coastal waters , the MIKE 21 Flow Model is used to build the two-dimensional tidal current field and replay the basic situation and the trend of variation of the bay. Model validation results show that the calculated values agree well with the measurement values, and the model can reflect the tidal current field of Pulandian Bay accurately. The numerical simulation results provide the scientific basis and basic data for the sea area construction and environmental protection.
Research on Formability of AZ31B Magnesium Alloy at Room Temperature
Authors: Yu Zu Jian , Li Jian Hui , Yang Yan
Published: January 2014

Tensile tests and a cold deep drawing process were developed at room temperature to estimate the stamping formability of AZ31B magnesium alloy sheet. The results show that AZ31B magnesium alloy sheet has poor formability at room temperature with the total elongation of ~ 20%, the yield ratio is about 0.6 and the strain-hardening exponent is 0.18, while the plastic strain ratio is 1.58, and the earing ratio is-0.55.Thus, AZ31B magnesium alloy sheet can not suffer server plastic deformation. It was found that comparatively shallow magnesium alloy cups were satisfactorily formed at room temperature without heating when the punch fillet radius 6mm and the die fillet radius10mm with a 1mm thickness sheet with limit drawing ratio of 1.25.
Environment Effects of Tuberose Forcing Culture by Different Planting Dates and Varieties
Authors: Yang Jing Hui , Liu Ting , Li Jian Ke , Liu Yan Jun , Huang Jun Xun , Gong Wu Que
Published: January 2014

In the northern China, Tuberose is planted in spring following man-forced dormancy in winter and blooms in summer or autumn. The forcing culture was carried out under greenhouse environment to advance blooming to spring and to evaluate the vegetative and reproductive characteristics of tuberose. Effects of three planting dates (30th Oct., 30th Nov, and 20th Dec), two cultivars (Single and Double) were determined. The results showed that Oct planting gave more percentage of corm sprouting, longer spikes and flower stems, more but smaller florets; however, more number of days was required to bloom than other planting dates. Double variety normally had more sprouting, flowering, florets, shorter spikes, and better quality of cutting flower, but it bloomed later than Single variety. The quality of cutting flowers produced in the greenhouse was decreased compared with local field produced flowers, particularly when planting date was late, with the exception of Double in Oct planting. So, the forcing cultivation of tuberose may be performed with Double and in Oct planting in local greenhouse and without man-forced winter dormancy of corm after harvest.
Application of Different Biomaterials in Achilles Tendon Repair for Exercise Injury
Authors: Zhao Na , Chen Wen , Yan Tao
Published: January 2014

The rupture of Achilles tendon is hard to self-healing and repair and it is easily left pain and dysfunction. For a long time, the treatment of Achilles tendon defect by many scholars conducted a lot of research, from the tendon autograft, allograft tendon transplantation to the artificial tendon transplantation, tissue engineering tendon transplantation. Practice has proved that these methods have their own advantages and disadvantages. Although the research and application of scaffold materials for tendon tissue engineering has achieved some success, but the application materials or the presence of biocompatibility, degradation problems or have poor mechanical properties, machining molding defects, there is still a big gap between the ideal scaffold materials. This study evaluated the different biological materials in the repair of Achilles tendon injury in effect, provide a theoretical reference for the key to construct tissue engineered tendon is to find appropriate scaffold materials for tendon cell adhesion, growth and functional differentiation.
Relationship between Concentration of Fine Particulate Matter and Plasma vWF Level in Healthy Young Adults
Authors: Yuan Zhong Hai , Hou Yi Ju , Zhao Chen , Li Yan
Published: January 2014

Abstract Objective: To investigate the relationship between air fine particulate matter (PM2.5) and plasma vWF level in healthy young adults during the 2008 Olympic Games in Beijing. Methods: 114 healthy young adults working and living in Peking University First Hospital were recruited. Six blood samples at pre-Olympics, during-Olympics and post-Olympics were taken from these individuals for plasma vWF measurement. Daily concentrations of PM2·5 were measured. Results: The change tendency of average concentration of PM2.5 were consistent with the change tendency of average plasma vWF level. The influence of PM2.5 on plasma vWF level had a 4 days lag effect (P<0.05). Conclusion: The average plasma vWF level in the 114 normal individuals lowered in association with the decrease of PM2.5 during the 2008 Olympic Games in Beijing. Improvement of air pollution is beneficial to prevent some diseases, especially cardiovascular diseases.
Using 16S rDNA as Target Site for Homologous Recombination to Improve the Alkaline Protease Production of Bacillus alcalophilus
Authors: Mo Qing Shan , Tian Yao , Zhang Hui Tu , Bu Ling Jun , Lu Fu Ping
Published: January 2014

Bacillus alcalophilusisolated was used for the production of alkaline protease. The enzyme encoded by alkaline protease gene (apr4) gene. To further improve the production of the strain for industrial requirement, a genetic manipulation system forBacillus alcalophiluswas developed. Additional copies of theapr4 gene were transferred into the strainBacillus alcalophilusand integrated into the 16S rDNA sites, yielding a series of recombinant strains. One of these recombinant strains, designated K23, exhibited superior properties for production of alkaline protease. the protease activity of K23 achieved by (6.19 ± 0.34) × 104U/ml, which is approximately 111.3% higher than that of the wild-type ones for 50-h fermentation. In addition, the new strain was genetically stable for more than 100 generations. These superior characteristics make it to be more suitable than the wild-type strain for alkaline protease production.
Design and Simulation of Self-Adapting Anti-Interference Algorithm with Information Technology in Satellite Navigation
Authors: Chen Guo Zhi , Chen Guo Tong , Miao Jing , Yao Xiao Yun
Published: January 2014

Satellite navigation system has been widely used in various fields, because of the signal which is received on the ground is weak and the low ratio of signal to interference, the signal is susceptible to be interfered. The adaptive antenna system using power inversion algorithm with information technology is very suitable for the weak signal and strong interference. The paper presents a detailed analysis on the principle with information technology. By building the hardware circuit in the QuartusII, the self-adapting anti-interference system of power inversion algorithm with information technology which based on Linearly Constraint Minimum Variance (LCMV) criterion can be achieved. The correctness of the theoretical analysis and correctness of the design are verified by experiment, the requirements of satellite navigation receiver on the side of anti-interference has been also proved.
Research on Applied Technology with PID Control Theory and Design Methods
Authors: Han Chun Juan , Rui Fa Cheng
Published: January 2014

PID control (fuzzy control) is one of the earliest and most widely used control laws in process control applications. It can obtain satisfactory control results for most industrial objects. People use PID control (or PI, PD control) in a variety of controllers in frequency control system. However, with the rapid development of modern large-scale industry, and the degree of automation is getting higher and higher, the scope of applications in frequency control technology has been continuously expanding, while it has wider and deeper requirements for the performance of speed control system. AC drive system has uncertain factors, such as the existing parameter variability, load disturbance, nonlinear and strong coupling in under controlled AC motors, they will seriously affect the performance of speed control system. The traditional PID control seems a little powerless. The fuzzy control is a nonlinear control in essence, it can significantly improve the robustness of the system comparing to linear PI controller, and it can more effectively overcome various nonlinear factors in transmission system. For a multi-loop speed control system, the outer loop is the fundamental factor in determining the system performance. Inner loop is mainly for changing object properties in order to facilitate the controlling actions of the outer loop. The sampling frequency of inner loop is lower than the one in outer loop, which is facilitating for the realization of intelligent control.
Applied Technology in Digital Telescope Camera’s Research and Design Based on DSP
Authors: Liu Jiao Yue , Yang Ju Qing , Wang Guang Ming
Published: January 2014

With the rapid development of computer and information technology, digital signal processing(DSP) is applied widely. This paper introduces a binoculars digital telescope camera based on DSP’s enhanced features and intelligent modern optical technology. Combined with the super image-processing performance of DSP, the camera's optical imaging system is analysed、studied and designed by second development, thus real time capturing、storing、converting、transmitting、displaying of far distance imaging informations can be achieved perfectly.So the camera can observe, take photos and monitor, it’s fit for sightseeing and tourism, hunting in the field, observing the birds’ lives, roads’ survey, military espial, monitoring in far distance, forests’ fireproofing, investigation and assumption, and so on.
A Method with Energy Saving for Investment Decision of Wind Power Project Based on TOPSIS
Authors: Wu Yun Na , Xiao Xin Li
Published: January 2014

Siting of wind power projects is a problem which needs solving during the decision-making stage, so taking full consideration of all the factors is an important prerequisite for making decisions. On the basis of full consideration of various factors in wind power projects, AHP is applied to determine the index weight and TOPSIS for project selection. With these methods, a result of better accuracy and prediction is obtained. In the meantime, the method proves effective and feasible, expecting to provide a reference method for program selection of wind power construction.
Study of Lithium Bromide-Water Binary Solution in the Application of Hot Springs Geothermal Energy
Authors: Liang Ze De , Wang Shu Jie
Published: January 2014

The main geothermal resources in China are low or medium-temperature geothermal resources, these are more than 3000 hot springs, which of above 60 °C account for 24 percent of total, those are more than 720. In these hot springs bases for tourism and leisure and spa medical, the demand of electricity and air-conditioning is relatively large, so these is a very important practical significance to develop low or medium-temperature geothermal resources technology. If hot springs geothermal system uses lithium bromide-water azeotropic binary mixtures as working fluid, which not only reduces the heat loss of temperature difference, but also plays the advantages in thermodynamics and environmental aspects. Three systems of this article described all use water vapor as the working fluid, their characteristics are analyzed and compared, respectively. By analysis found that: when the demand is only for power generation and non-condensable gas content in hot springs geothermal water is not too high, the single-stage flash evaporation electrical system is more favorable; because of hot springs primarily for leisure travel and medical care function, and the demand for air conditioning and refrigeration is also large, so the combined system is more favorable.
The Path Segmentation Algorithm of Microgrid Distribution Network on Reliability Evaluation
Authors: Zhang Fu Hong , Zhou Wei , Sun Hui
Published: January 2014

Abstract: Distribution network is an important link in the supply and distribution of electricity to users, which connects the power system or power transmission and transformation system with the users’ facility, and the overhaul and malfunction of the components or equipment of the distribution network will directly lead to the discontinuity of power supply. In order to solve this problem, the path segmentation algorithm of microgrid distribution network on reliability evaluation is studied in this paper, and through analyzing the principle of reliability and its basic methods, the path segmentation algorithm of the load balancing of the distribution network is put forward. When the load of all the source points are equally divided, the load distribution is the most balanced through using the network topology structure and the load distribution of the load to segment. The simulation results show that the algorithm proposed in this thesis has a good efficiency, and also has a good economic benefit for real-time evaluation of the microgrid distribution network.
Research on Applied Technology of Palmprint Recognition Based on Fisher Linear Discriminant and Improved PCA Algorithm
Authors: Li Jing Wen
Published: January 2014

The information applied technology of palmprint recognition is a biometric technology, it’s based on the effective information on the palm (such as: palmprint) to identifies people. The palmprint is unique and characteristic, these are the identification of critical conditions. The feature extraction of palmprint image is a prerequisite for recognition, feature extraction algorithm depends on the quality of the recognition rate and efficiency. This paper presents a method of palmprint recognition algorithm based on Fisher linear discriminant analysis and improved PCA algorithm. The experimental results show that, the recognition rate is improved.
Research on Applied Technology with Characteristics of Different Inversion Method Based on AIC Selection
Authors: Zeng Ren Fen , Guo Dong Qin , Li Ru Xiong , Wang Ying Lian
Published: January 2014

Basis on the AIC selection smallest regularization, flattest regularization and smoothest regularization resolution result are compared at different noise level. The result explore the insight into how to solve the inversion problem when noise increase gradually. Some analysis has been done to decide the ability of the three methods on handling the data gaps. Each method has their special way to invert the data and give inference for data gaps with zero padding, linearize interpolation or smooth way. The results of the study is very important ,especially in the applied technology problem such as geophysics, geodetics, and so on.
Research on Image Technology with Image Recognition of Wheat Diseases Based on Multi-Fractal and LVQ Neural Network
Authors: Wang An Mei
Published: January 2014

As for different shape features for different wheat diseases, it can make use of multi-fractal analysis to extract 7 Multi-fractal spectrum value of wheat diseases image as the parameters of the wheat disease characteristics. Eight feature parameters can be applied to index the image database as a learning vector quantization neural network input. According, Sample training, classification and recognition is to be carried out. Experimental results show that the wheat disease recognition rate of the algorithm can reach more than 90%.
Research on Information Applied Technology with Swarm Intelligence for the TSP Problem
Authors: He Fang Guo
Published: January 2014

As a swarm intelligence algorithm, particle swarm optimization (PSO) has received increasing attention and wide applications in information applied technology. This paper investigates the application of PSO algorithm to the traveling salesman problem (TSP) on applied technology. Proposing the concepts of swap operator and swap sequence, we present a discrete PSO algorithm by redefinition of the equation for the particles velocity. A computational experiment is reported. The results show that the method proposed in this paper can achieve good results.
A Comparable Study on the Effects of Pristine and Functionalized Single-Walled Carbon Nanotubes on Schwann Cells
Authors: Qiu Tong
Published: January 2014

A comparable study on the effects of pristine and functionalized single-walled carbon nanotubes on schwann cells were conducted. Schwann cells were co-cultured with three types of SWNTs, purified raw SWNTs (C), hydroxyl purified SWNTs (C-OH) and carboxyl purified SWNTs (C-COOH) at 25μg/mL. C-COOH promoted the cell viability after 72h exposure and sustained its redox states by enhancing GPx expression. On the contrary, C and C-OH weaken the antioxidant activity due to the inhibition in main antioxidant enzymes and further led to the decline in cell viability. Carboxyl modification of the SWNTs helps to improve the biocompatibility of the SWNTs by strengthening the antioxidant ability.
Research on Information Applied Technology with Video Compression Algorithms Based on the Optimal Multi-Band Haar Wavelet Transform
Authors: Tang Jun Fang
Published: January 2014

Video playback has been one of the most important online communication ways. With the application of stereo video, large amount of video data need to be stored and transported so that fluency and clarity of demand system, and how to efficiently conduct compressed encoding for stereoscopic video data becomes a hot topic currently. In view of this problem, this paper puts forward the video-on-demand compression algorithm based on the optimal multi-band Haar wavelet transform, through the research on wavelet transform algorithm model to reinforce the algorithm secondly, strengthening from the binary wavelet theory into octal wavelet system theory to get better compression capability. The simulation experiments show that video-on-demand compression algorithm based on the optimal multi-band Haar wavelet transform proposed in this paper has a good compression performance not only under medium and high bit- rate conditions, and also reaches the H. 263 under low bit-rate condition.
Research on Information Technology with a New Microblog Heat-Algorithm Combining Blogger's Authority
Authors: Xu Jian Min , Wang Hong Liu , Wu Shu Fang
Published: January 2014

In order to distinguish the importance of bloggers in the microblog of information technology, we proposed the concept of blogger's authority and developed the blogger's authority model. The four quantitative indexes including the basic attributes, social index, activity of the blogger and the quality of contents are used to determine how to compute blogger's authority. Considering the influence of blogger's authority on microblog heat changes weaken over time, we apply a time decaying factor to adjust the computing of blogger's authority. Experiments on Sina Weibo data comparing to the former heat algorithm indicate that the new algorithm is more effective.
Research on the Performance Analysis of Network Intrusion Detection of AC Algorithm
Authors: Zhao Dong Ming
Published: January 2014

As the use of computers become more widely, its intrusion security has become a key issue. In order to solve this problem, this article proposes a analysis research on AC algorithm for the detection of network intrusion. Through the research on the patterns of network intrusion, the AC algorithm for the detection of network intrusion is proposed and analyzed. Simulation results show that the proposed AC algorithm of network intrusion detection has a good efficiency, higher accuracy and efficient use of resources.
Research on Image Technology with Progressive Image Compression Based on JPEG and Laplacian Pyramid
Authors: Xu Bo Hao , Hao Yong Sheng
Published: January 2014

Progressive image transmission is a kind of image technology has been widely used in various fields, it can not only save bandwidth but also improve the user experience to meet user demand for different image quality. According to user's demand for image quality, realizing the progress of image compression coding flow can meet the demand of users. This article mainly introduce by means of JPEG and Laplacian pyramid coding principle implement progressive image compression.
Component Subnet Combination and its Case Study under the Model of EOOPN
Authors: Zhao Na , Wang Jian , You Jin Guo , Zhao Lei , Li Ling Yu , Zhu Rui
Published: January 2014

Base on the Extended Object-Oriented Petri Net, and the component evolution processes that has been proposed in our previous research, this paper studies on the issue of software component subnet combination under the model of EOOPN. Three types of combination of EOOPN subnets were defined and the illustration of subnet combination was given with a case study. This papers work laid foundations for the further presentational and analytical aspects of component evolution.
Research on the Development of WebSocket Server
Authors: Liu Wen Tao
Published: January 2014

The WebSocket makes the web application to deal with the web data directly in the HTML5 and it provides full-duplex communications channels using TCP connection. Some traditional web communication technologies and their shortcomings are introduced such as polling, long polling, stream and flash xml socket in this paper. The principle of the web socket is introduced and a WebSocket server is developed which can be used in the real time web environment. The server includes two modules which include the socket listener and the communication socket. The server implements the WebSocket handshake protocol and the data transfer protocol. The server is developed by C++ language which can provide high efficiency data operation and network transportation. The program is more scalability and flexibility and it uses the universal interface to implement the core functions of web socket with the CAsyncSocket.
Research on Information Technology with Design and Implementation of Voiceprint Authentication System Based on Android
Authors: Cao Cai Feng , Liang Guo Chao , Liang Hua Rong
Published: January 2014

Voiceprint authentication is an important information technology,which uses the human unique voice information to realize the judgment of speakers identity. By researching and improving some related algorithms, we design and realize a voiceprint authentication system based on Android platform. It adopts the method of text-dependent voiceprint authentication. The system has been tested and analyzed in different environment.The matching threshold achieves practical results.
Age determinations and geological studies K-Ar Isotopic ages, report 12
Authors: Wanless R K , Stevens R D , Lachance G R , DeLabio R N
Published: January 2014

One hundred and ninety-eight new potassiumargon age determinations carried out on Canadian rocks and minerals are reported. Each age determination is accompanied by a description of the rock and mineral concentrate used; brief interpretative comments regarding
the geological significance of each age are also provided. The experimental procedures employed are described in brief outline and the constants used in the calculation of ages are listed. Two geological timescales are reproduced in tabular form for ready reference and an index of all published GSC
K-Ar age determinations by primary NTS quadrangle has been prepared.
Contributions to canadian coal geoscience
Authors:   Geological Survey of Canada
Published: January 2014

The 6 by 18 km Stellarton Basin of Northern Nova Scotia is a rhomb graben formed in response to dextral movement along the Hollow and Cobequid faults. From the Westphalian B through D over 2.6 km of grey and red coal-bearing strata (the Stellarton Formation) were
deposited as the graben opened. Basin-fil! patterns were controlled primarily by changes in the rate of tectonic subsidence. When subsidence rates and water levels within the basin were low, thick peat swamps and shallow lakes formed near the basin center and red beds were deposited near basin
margins. When subsidence rates and water levels were high, deep lakes formed at the basin center and were subsequently partly infilled by grey lacustrine delta deposits. Peat swamps occasionally developed on delta plains, during abandonment phases, and gradually drowned when a central basin lake
expanded.
Current Research, Part A, Cordillera and Pacific Margin
Authors:   Geological Survey of Canada
Published: January 2014

A reconnaissance geochemical survey was conducted in H owe Sound to identify sources and dispersion of natural and anthropogenic inorganic constituents. Waters /rom creeks draining into the Sound, near-shore bottom sediments, and seaweed (rockweed, Fucus
gardneri) were collected. A more detailed study focused on the drainage around the abandoned Britannia Cu mine. Ali sample media contain anomalous levels of Cu and Zn in the vicinity of the Britannia mine site. Rockweed was not found on shores within 3 km of Britannia Beach, presumably due ta metal
poisoning. Concentrations of 44 ppm Cu and 26 ppm Zn in waters emanating from the mine portals at Britannia are reduced significantly to about 300 ppb at the mouth of Britannia Creek by dilution and co-precipitation with amorphous F e-oxides. With the exception of Britannia, creeks flowing into H
owe Sound contain low concentrations of the elements (e.g., As, Ni, Pb) determined.
Carboniferous and Permian gas resources of the Western Canada Sedimentary Basin, Interior Plains
Authors:   Geological Survey of Canada
Published: January 2014

Part I of this paper describes the discovered gas resources of the major Carboniferous and Permian gas plays in flat-lying strata beneath the Interior Plains of western Canada. It presents a prediction for their undiscovered gas resources based on geological and
statistical analysis. In Carboniferous strata in the plains, 587.208 x 109 m3 (20.8 TCF) total discovered gas occurs in five established, mature Carboniferous plays, present in 241 fields with 883 pools. This represents 53 per cent of the in-place gas volume for the Carboniferous and Permian plays
(plains plus Foothills). The potential of initial volume in-place gas in these five plays is 142.041 x 109 m3 (5.0 TCF), predicted to occur within 3177 undiscovered pools. Thus, 19 per cent of the Carboniferous (plains area) gas-in-place resource in mature plays remains to be discovered. There are
four immature plays identified for the Carboniferous in the plains and they contain 2.711 x 109 m3 (0.1 TCF) of initial volume in-place gas in 10 gas fields, each consisting of one pool. The potential in the immature plays was incorporated in the conceptual play analysis.

For the Permian in the plains, 39.943 x 109 m3(1.4 TCF) occurs within one established mature play, in 48 fields with 93 pools. This represents 96 per cent of the gas-in-place total for the Permian (plains plus Foothills). The expected potential of initial volume in-place gas in the plains is
predicted to be 72.783 x 109 m3 (2.6 TCF), within 907 undiscovered pools in the established play. The total number of discovered and predicted Permian pools (plains area) is 1000. Almost 65 per cent of the Permian gas-in-place resource in the plains remains to be discovered. No immature plays were
identified for the Permian.

The potential gas volume in the conceptual and immature plays within the Carboniferous and Permian of the plains is 285.909 x 109 m3 (10.1 TCF). This statistical analysis predicts about 22 plays in the Carboniferous and Permian, representing six mature plays, four immature plays, and 12 conceptual
plays. For comparison, at least 5 to 10 conceptual plays are suggested on the basis of our regional geological analysis.

For the Carboniferous and Permian of the plains, the discovered initial volume in-place gas for all established, mature and immature plays is 629.862 x 109 m3 (22.4 TCF), within 296 fields and 986 pools. The total initial volume in-place gas resource (discovered and undiscovered) for all mature,
immature and conceptual plays is 1130.595 x 109 m3 (40.1 TCF), predicted to occur in 5070 discovered and undiscovered pools within the mature plays, plus an undetermined number of undiscovered pools in the conceptual and immature plays. The undiscovered potential of 500.733 x 109 m3 (17.8 TCF) for
all play types represents 44 per cent of the total gas resource in the plains area.
Summary of 1998 fieldwork in Trutch and Toad River map areas, Central Forelands NATMAP Project, northeastern British Columbia
Authors: Lane L S , Cecile M P , Currie L
D , Stockmal G S
Published: January 2014

Significant parts of seven 1:50 000 scale map areas were mapped in detail, and part of the Trutch map area was mapped at 1:250 000 scale during seven weeks of fieldwork. In the Trutch area, facies changes within the Triassic succession presented difficulties in
the definition of mappable units across the area. Individual folds are mappable for long distances in the foothills of the Trutch map area. In the foothills, numerous folds truncate against a subtle, but distinct, domain 70 80 km long, containing long, continuous, north-trending folds. Within and
adjacent to this zone, some structures exhibit abrupt changes in plunge, others show pronounced local swings in axial surface traces, and on other structures, shortening is transferred en échelon to adjacent structures. Also, disparities exist between the trends of local structures and the
trends of regional structures. Altogether these indicate that surface structures are influenced by features that are present in the subsurface.
Stratigraphy of the Hazelton Group in southwestern Nechako River map area, central British Columbia
Authors: Quat M B , Struik L C
Published: January 2014

Hazelton Group rocks in southwestern Nechako River map area formed in an Early to Middle Jurassic volcanic arc. The succession consists of subaerial and submarine volcanic rocks interbedded with marine sediments assigned to the Entiako and Naglico formations. The
Entiako Formation correlates to the Telkwa Formation in the Whitesail Reach map area and the Unuk River and Betty Creek formations in the Iskut River map area. The Naglico Formation roughly correlates to the Smithers Formation in the Whitesail Reach map area and the Salmon River Formation of the
Iskut River Telegraph Creek map areas. These units represent a silica-bimodal volcanic and sedimentary succession deposited in an arc-backarc complex of the Stikine Terrane (Stikinia). The Hazelton Group is the oldest rock succession in southwest Nechako River map area. It is overlain by Eocene
Ootsa Lake Group rhyolite, Endako Group basalt, and Miocene basalt and intruded by (?)Jurassic diorite and granodiorite.
Neodymium-isotopic characteristics of the Uchi-Confederation Lakes region, northwestern Ontario
Authors: Tomlinson K Y , Rogers N
Published: January 2014

The Uchi-Confederation greenstone belt of the Uchi Subprovince, Superior Province, records a prolonged history of mafic to felsic volcanism (~2975-2740 Ma) and tonalitic plutonism (~2840-2700 Ma). Neodymium-isotopic data from the Trout Lake batholith
(eNd values of -1.1 to +2.7, compared to values of +2 to +3 for late Archean depleted mantle) suggest that a felsic component older than 3 Ga may be present. Volcanic rocks of the Balmer assemblage have eNd values of +0.3 to +1.9 at 2.96 Ga, also suggestive of an older crustal component to Balmer
assemblage volcanism. Volcanic rocks from the Woman assemblage have eNd values from 0.0 to +1.9 at 2.84 Ga, again suggesting recycling of older crust. Volcanic rocks in the lower half of the Confederation assemblage are relatively juvenile with eNd values of +1.4 to +2.0 at 2.74 Ga. Confederation
assemblage rocks in the upper half of the sequence have lower values of -0.4 to +1.1.
New observations on relict volcanic features in medium-grade gneiss of the Montauban group, Grenville Province, Quebec
Authors: Nadeau L , Brouillette P , Hébert C
Published: January 2014

The Montauban region, south-central Grenville Province, is known for its small, stratiform, polymetallic Au-Ag-Zn-Pb ore deposits. The amphibolite-facies orebodies and hydrothermally altered wall rocks occur within the ca. 1.45 Ga Montauban group, a sequence
dominated by quartzofeldspathic gneiss with minor quartzite and amphibolite, locally pillowed metabasalt, and sporadic outcrops of marble and calc-silicate rocks.
Occurrences of lapilli tuff are reported, namely from the structural footwall-stratigraphic hanging wall of the orebodies. This is the first unequivocal example of felsic volcanic rocks in the Montauban group. Proximal lapilli tuff and vesicular basaltic pillow lava occur with thinly bedded
intermediate to felsic rocks interpreted as distal pyroclastic subaqueous fallout deposits, and laterally intercalated epiclastic sediments.
Such volcanic rocks are consistent with deposition of the Montauban group in a shallow submarine environment at the late stage of an andesitic to felsic volcanic cycle, a common occurrence in mature island-arc or backarc settings where Au-rich volcanogenic sulphide deposits are
formed.
Textural characteristics of low to high resistivity, low anisotropy volcanic tuffs, Bathurst mining camp, New Brunswick
Authors: Connell S , Katsube T J , Hunt P A
Published: January 2014

Detailed textural analysis by scanning electron microscopy (SEM) has been carried out on four rock samples from the Bathurst mining camp, New Brunswick. The purpose was to characterize the degree to which deformation and veining can affect the electrical
characteristics of tuffaceous rocks. Resistivities parallel and perpendicular to foliation are in the ranges of 100-1000 ohm-metres and 1700-2200 ohm-metres, respectively.

Results indicate that resistivity values are affected by varying degrees of silicification and quartz veining accompanied by iron-oxide stringers. They also indicate that clay-sized phyllosilicates have the potential to increase the electrical conductivity along the long axis of the grain and
increase the resistivity perpendicular to the foliation when aligned parallel to foliation. Further analysis is required to determine the difference in effect, if any, of the resistivity of Mg-rich chlorite as compared to that of Fe-rich chlorite.
Textural characteristics of moderate to strongly foliated volcanic tuffs that display high resistivity and anisotropy values, Bathurst mining camp, New Brunswick
Authors: Connell S , Katsube T J , Hunt P A
Published: January 2014

Detailed texture analysis by scanning electron microscopy (SEM) has been carried out on three volcanic tuff specimens (Bathurst mining camp, New Brunswick). The purpose was to determine the cause of the high electrical anisotropy (A = 24:1 to 67:1) and the high
electrical resistivity (r), and to characterize the degree to which deformation and/or foliation can affect the electrical signature of tuffaceous rocks. Resistivities perpendicular and parallel to foliation are 7000-15 000 ohm-metres and 150-600 ohm-metres, respectively.

Results indicate that the high r values (7000-15 000 ohm-metres) in the direction perpendicular to the foliation are due to the tight siliceous and/or feldspathic layers acting as electrical insulators to the traversing electrical current. They also indicate that the increased chlorite content
resulting from the recrystallization of various minerals during metamorphism and parallel alignment of grains may be the source of the lower r values (150-600 ohm-metres) in the direction parallel to the foliation.
History of major debris flows on the Scotian Rise, offshore Nova Scotia
Authors: Piper D J W , Skene K I , Morash N
Published: January 2014

Regional single-channel seismic reflection profiles of the Pliocene-Quaternary section on the Scotian Rise have been correlated with biostratigraphic control on Laurentian Fan and the central Scotian Slope. The distribution and age of debris-flow deposits on the
rise is correlated with sediment failures on the slope. Debris-flow deposits are as old as the mid-Pliocene, suggesting that glaciation is not a determining cause of sediment failure. On the Scotian Slope, the widespread occurrence of shallow gas and the age and character of several failures suggest
that sublimation of gas hydrate, resulting in excess pore pressures, is the principal trigger for sediment failure.