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The impairment of blood-brain barrier (BBB) integrity is the pathological basis of hemorrhage transformation and vasogenic edema following thrombolysis and endovascular therapy. There is no approved drug in the clinic to reduce BBB damage after acute ischemic stroke (AIS). Glial growth factor 2 (GGF2), a recombinant version of neuregulin-1β that can stimulates glial cell proliferation and differentiation, has been shown to alleviate free radical release from activated microglial cells. We previously found that activated microglia and proinflammatory factors could disrupt BBB after AIS. In this study we investigated the effects of GGF2 on AIS-induced BBB damage as well as the underlying mechanisms. Mouse middle cerebral artery occlusion model was established: mice received a 90-min ischemia and 22.5 h reperfusion (I/R), and were treated with GGF2 (2.5, 12.5, 50 ng/kg, i.v.) before the reperfusion. We showed that GGF2 treatment dose-dependently decreased I/R-induced BBB damage detected by Evans blue (EB) and immunoglobulin G (IgG) leakage, and tight junction protein occludin degradation. In addition, we found that GGF2 dose-dependently reversed AIS-induced upregulation of vesicular transcytosis increase, caveolin-1 (Cav-1) as well as downregulation of major facilitator superfamily domain containing 2a (Mfsd2a). Moreover, GGF2 decreased I/R-induced upregulation of PDZ and LIM domain protein 5 (Pdlim5), an adaptor protein that played an important role in BBB damage after AIS. In addition, GGF2 significantly alleviated I/R-induced reduction of YAP and TAZ, microglial cell activation and upregulation of inflammatory factors. Together, these results demonstrate that GGF2 treatment alleviates the I/R-compromised integrity of BBB by inhibiting Mfsd2a/Cav-1-mediated transcellular permeability and Pdlim5/YAP/TAZ-mediated paracellular permeability.

To investigate the refining phenomena of TiN inclusion and macro-/microstructure through heterogeneous nucleation of δ-Fe at TiN encapsulating oxide during solidification in ultrapure ferritic stainless steel, five samples were prepared, denoted as the initial, low-yttrium-treated, moderate-yttrium-treated, high-yttrium-treated, and magnesium-yttrium-treated samples. Based on the results of TiN inclusions, the minimum value of the average size (2.61 μm) and the maximum value of the number density (346.70 mm−2) were observed after magnesium-yttrium (Mg–Y) treatment. Combined with the mechanism analysis, these results reveal that the TiN can be refined because of the following three reasons: (ⅰ) the pure oxides, possessing low planar and/or linear disregistry with TiN; (ⅱ) the complex oxides, including the phase, which possesses extremely low disregistry with TiN; and/or (ⅲ) the increasing number of the oxides. By comparison, finer macrostructures were yielded with the addition of Y-/Mg–Y-based modifiers because of the decreasing nucleation barrier, and the finest macrostructure with equiaxed grain ratio of 100% and average grain size of 1.099 mm was observed in the Mg–Y-treated sample. Coupled with the results of TiN inclusions, therefore, the refining efficiency of macrostructure increases with the number of TiN. Referring to the results of differential scanning colorimetry, a general rule of solidification for metallic materials has been revealed. In addition, the in-situ nucleation-growth of δ-Fe was observed using high temperature laser confocal microscopy, and the microstructures were refined after Y/Mg–Y treatment. Eventually, the interfacial wetting-lattice mismatch heterogeneous nucleation model is successfully applied to evaluate the refining phenomenon of macro-/microstructures.

C22H22N2O9, monoclinic, P21/c(no. 14), a= 7.7374(3) Å, b= 29.1082(11) Å, c= 8.7595(3) Å, β= 96.853(3)∘$96.853{(3)}^{\circ }$, V= 1958.74(13) Å3, Z= 4, Rgt(F) = 0.0520, wRref(F2) = 0.1501, T= 100 K.

C18H17N3O9, monoclinic, P21/c(no. 14), a= 15.3768(3) Å, b= 7.4510(2) Å, c= 15.6673(5) Å, β= 102.700(3)∘, V= 1751.13(8) Å3, Z= 4, Rgt(F) = 0.0405, wRref(F2) = 0.1157, T= 100 K.

Background: Postoperative pain treatment for pediatrics is often inadequate and the evidence of pediatric postoperative analgesia is scarce. To our knowledge, no report regarding the comparison among caudal block, transversus abdominis plane (TAP) block and quadratus lumborum (QL) block for children undergoing lower abdominal laparoscopic surgery was found at present. Thus this trial aimed to compare the efficacies of them for children undergoing lower abdominal laparoscopic surgery. Methods: One hundred and eighty children aged from 1 to 12 years undergoing lower abdominal laparoscopic surgery were included and randomized to receive caudal block, TAP block or QL block. The primary outcome was the Face, Legs, Activity, Cry, and Consolability (FLACC) score at 30 min, 1 h, 4 h, 8 h, 12 h, and 24 h and tramadol consumption during first 24 h postoperatively. Secondary outcomes included the number of children received tramadol, time to first tramadol request, parents' satisfaction and postoperative adverse reactions. Results: The QLB group had lower postoperative FLACC scores at 8 h (median difference − 0.43, P= 0.03) than the Caudal group and at 4 h (median difference − 0.6, P= 0.001) and 8 h (median difference − 0.43, P= 0.03) than the TAPB group. The tramadol consumption was lower in the QLB group (28.43 ± 6.55) than the TAPB group (37.17 ± 6.12, P= 0.023). Although the number of children received tramadol did not differ among the three groups, the time to first tramadol request was longer in the QLB group (7.20 ± 0.79) than the caudal group (8.42 ± 0.61, P= 0.008). No statistical difference was observed concerning other secondary outcomes. Conclusions: QLB produced more effective postoperative analgesia for children undergoing laparoscopic abdominal surgery compared with the TAPB and caudal block. Graphical abstract:

C22H24N2O12S, orthorhombic, Fdd2 (no. 43), a= 38.8080(3) Å, b= 33.3993(3) Å, c= 7.16660(10) Å, V= 9289.06(17) Å3, Z= 16, Rgt(F) = 0.0432, wRref(F2) = 0.1223, T= 99.98(11) K.

C19H14N4O11, monoclinic, C2/c(no. 15), a= 17.855(4) Å, b= 18.214(4) Å, c= 14.193(3) Å, β= 124.32(3)°, V= 3812.3(17) Å3, Z= 8, Rgt(F) = 0.0639, wRref(F2) = 0.1897, T= 100.01(10) K.

Byline: Yu-Pei. Chen, Tong. Liu, Yuan-Yuan. Peng, Yan-Ping. Wang, Huan. Chen, Yi-Fan. Fan, Li. Zhang Background: Acupuncture is applied worldwide in treating hot flashes (HFs), which may be a common [...]

The cavitating flow in different regimes has the intricate flow structure with multiple time and space scales. The present work develops a multiscale model by coupling the volume of fluid (VOF) method and a discrete bubble model (DBM), to simulate the cavitating flow in a convergent-divergent test section. The Schnerr-Sauer cavitation model is used to calculate the mass transfer rate to obtain the macroscale phase structure, and the simplified Rayleigh-Plesset equation is applied to simulate the growing and collapsing of discrete bubbles. An algorithm for bridging between the macroscale cavities and microscale bubbles is also developed to achieve the multiscale simulation. For the flow field, the very large eddy simulation (VLES) approach is applied. Conditions from inception to sheet/cloud cavitation regimes are taken into account and simulations are conducted. Compared with the experimental observations, it is shown that the cavitation inception, bubble clouds formation and glass cavity generation are all well represented, indicating that the proposed VOF-DBM model is a promising approach to accurately and comprehensively reveal the multiscale phase field induced by cavitation.

C21H22NNaO12S, orthorhombic, P212121(no. 19), a= 7.6850(1) Å, b= 10.8030(1) Å, c= 25.9262(2) Å, V= 2152.42(4) Å3, Z= 4, Rgt(F) = 0.0309, wRref(F2) = 0.0818, T= 100.0(4) K.

C20H19NO10S, triclinic, P1‾$P‾{1}$(no. 2), a= 8.3470(2) Å, b= 9.6701(2) Å, c= 12.9523(3) Å, α= 102.413(2)°, β= 103.199(2)°, γ= 97.753(2)°, V= 975.26(4) Å3, Z= 2, Rgt(F) = 0.0439, wRref(F2) = 0.1244, T= 100(1) K.

Large-sized hard inclusions led to the problem of wire breaking during the cold drawing process. So it is very important to plasticise inclusions in cord steel. In this article, the plastic modification mechanism of Na2CO3on inclusions in cord steel was studied by adding different contents (0%, 0.2%, 0.4%, 0.6%) Na2CO3in a MoSi2resistance furnace. The ingots were forged to investigate the deformability of inclusions. The size of inclusions during the cold drawing was the same as that after forging because the cold drawing was carried out at room temperature. Therefore, the size and deformability of inclusions after forging can be used to measure the wire breaking rate of cord steel wire during the cold drawing process. Through the analysis of ingot samples and forging samples by SEM-EDS, it was found that the deformability of inclusions was improved and the inclusions were in the form of long strips or broken after forging. In addition, not only the low melting point phase diagrams of SiO2–Al2O3–MnO–(15%/10%)CaO–(0%–9%)Na2O but also the activities of SiO2, Al2O3and MnO were calculated by FactSage8.2. It was found that Na increased the low melting point region. When the contents of [Si], [Mn] and [Al] in molten steel were determined, the values of aAl2O32/aSiO23and aSiO2/aMnO2remained constant according to metal-inclusion thermodynamic equilibriums 3SiO2(inc)?+?4[Al]?=?2Al2O3(inc)?+?3[Si] and [Si]?+?2MnO(inc)?=?2[Mn]?+?SiO2(inc). Under the condition of constant aAl2O32/aSiO23and aSiO2/aMnO2, the activity coefficients of SiO2, Al2O3and MnO were changed by adding Na2O, which led to the change of inclusions component. Therefore, it was obtained the effect of Na2O content on inclusion composition and melting point using FactSage8.2 thermodynamic calculation and low melting point region calculation of phase diagrams. The result was that the inclusion deformability was well improved during thermal deformation under the condition of about 0.4% Na2CO3. Thus the wire breaking rate was reduced. It is expected that this work can provide theoretical guidance for the industrial production of feeding alkali wire in the later stage of refining.

ABSTRACTWith the development of cloud service, electronic medical record systems enable hospitals and doctors to capture, transmit and analyze patients’ medical and health information more efficiently, which provides very useful and economic services for patients, medical institutions and government. However, security and privacy issues have not been well addressed in the existing schemes. This article presents an improved electronic medical record system (IEMRS) with two desirable functionalities, where a mutual authentication is used to guarantee authorized requests, and the privacy of a request query is achieved to resist the intruder. Performance analysis demonstrates that the IEMRS scheme outperforms other schemes.

The objective of this study was to isolate lactic acid bacteria (LAB) strains from different origins and to select the best strains for ensiling Robinia pseudoacacia(RB) and Morus albaL. (MB) leaves. The LAB strains were inoculated into the extracted liquid obtained from RB and MB leaves to evaluate the fermentation products. 11 LAB strains were selected for further experiments based on the highest products of lactic or acetic acid, including 1 strain of Weissella confusa,2 of Lactobacillus reuteriand 8 of Lactobacillus plantarum.The API 50 CH fermentation experiment indicated that all of the selected 11 LAB strains utilised most of the carbohydrates. All the strains grew at temperatures between 10 and 45°C and at a pH of 3.5 to 4.5; however, L. reuteriF7 and F8 tolerated a pH as low as 3.0. All 11 LAB strains showed antibacterial activity against Listeria monocytogens, Escherichia coil, Salmonellasp. and Acetobacter pasteurianus; however, after excluding the effect of organic acids, only F7 and F8 still exhibited antibacterial activity. The present study indicated that the selected 11 LAB strains could be used to prepare silages of RB and MB leaves, especially L. reuteriF7 and F8.

C16H13NO4Zn, triclinic, P1‾$‾{1}$ (no. 2), a= 7.5223(6) Å, b= 8.0977(8) Å, c= 11.7739(11) Å, α= 76.410(8)∘, β= 75.495(8)∘, γ= 75.902(8)∘, V= 661.76(11) Å3, Z= 2, Rgt(F) = 0.0532, wRref(F2) = 0.1041, T = 293(2) K.

This study examined the role of bone mesenchymal stem cell (BMSC) and olfactory ensheathing cell (OEC) cografting on neural function and underlying molecular mechanisms in acute stage of traumatic brain injury (TBI) rats. Eighty Sprague-Dawley (SD) female rats were randomly divided into five groups (n= 16 per category): sham operated group (Sham), weight-drop-induced TBI group (TBI), BMSC transplantation group (BMSC), OEC transplantation group (OEC), and cotransplantation group (CO). Eight rats were randomly selected from each group for behavioral and morphological assessment. Another category (n= 8 rats) was employed in the genetic expression detection. BMSCs were isolated from GFP mice and identified by CD44 antibody. OECs were isolated from the SD rats, identified by P75 antibody and labeled by Hoechst 33342. They were then transplanted into the surrounding tissue of the epicenter of TBI rats. The result of neurological severity scores revealed that BMSC or OEC transplantation alone and BMSC and OEC cografting significantly ameliorated the neurological deficits of TBI rats. Quantitative immunohistochemical analysis showed that graft-recipient animals possessed dramatically more neurons and regenerated axons and smaller amounts of astrocytes than controls 14 days posttransplantation (p<0.05). However, the expressional level of ciliary neurotrophic factor significantly decreased in the cografting group as determined by RT-PCR (p<0.05), and the Janus kinase/signal transducer and activator of transcription pathway was significantly activated at 7 days after cell transplantation (p<0.05). This study is the first to report the role of cotransplantation of BMSCs and OECs in the therapy of TBI and explore its potential molecular mechanisms, therefore providing the important morphological and molecular biological evidence for the clinical application of BMSC and/or OEC transplantation in TBI.

Despite a recent American Heart Association (AHA) consensus statement emphasizing the importance of resistant hypertension (RH), its control is still a challenge for conventional medicine. The Chinese herbal formula, Qutan Huayu Fang, has been used effectively to assist antihypertensive agents in blood pressure control, but its effect for RH patients is still unclear. This pilot study aims to explore the effects of taking the formula in addition to antihypertensive medication in the management of RH.

In this study, the thermal oxidative degradation behavior of thermotropic liquid crystal copolyesters P-BPAFx containing 2.5-10 mol% bisphenol AF unit were evaluated by thermogravimetric analysis (TGA) technique under air atmosphere and the degradation activation energy (E) was obtained from Kissinger and Kissinger-Akahira-Sunose (KAS) method. The degradation behavior of copolyester are strongly dependent on the molar percentage of BPAF unit. Results showed that the E values obtained by the two methods increase first and then decrease slightly with increasing the BPAF unit and follow the order P-BPAF5.0&lt; P-BPAF10&lt;P-BPAF2.5, indicating P-BPAF2.5 has good thermal stability. The reason for this phenomenon was discussed in detail in the text.

The hierarchical hydroxyapatite (HAP), such as needle-shaped, spherical and flower-like, was successfully synthesized by a homogenous precipitation method with poly (styrene)-block-poly (acrylic acid) (PS-b-PAA). The self-assembled “crew-cut” micelles of amphiphilic block copolymer were found to play an important role in directing the nucleation and growth of HAP crystals. The morphology, crystal phrase and chemical structure of HAP crystal were investigated by scanning electron microscope (SEM), X-ray diffractions (XRD) and Fourier transform infrared spectroscopy (FT-IR) respectively.

With the research and development of a university in hydraulic dynamometer test, we designed a lower machine based on PLC, and giving the power distribution cabinet, electrical and mechanical control system combined with King View software, SIEMENS WINCC software. This study has hand and automatic operation, sensor measuring tank pressure, the measured current measurement power motor, the measurement results sent to our remote devices by Profibus-dp, such as the design of computer use (PC) and remote operation apparatus (Chu Moping). Due to frequency converter is circular soft starting control structure, the motor has no impact at the time of the launch, and stable performance is good, this can improve the service life of the motor and pump greatly.

In this study, oligomer JoncrylTM ADR was used to extend the chains and improve the mechanical properties. The chain extender multifunction epoxide was used with concentrations of 0.5 and 0.9 wt %. Pure and modified PLAs were characterized using DSC, MFI and FT-IR. The DSC results showed that Tg shifted to the high temperature and Tm increased slightly after chain extending. The MFI of the blends decreased with increasing the content of the CE which means the increase of molecular weight. The coupling between epoxy groups of CE and end groups of PLA was confirmed by FTIR tests. This coupling led to significant improvement in tensile strength and modulus.

Due to poor coalmine monitoring system data utilization and relatively high threshold for application of most application software in ventilation safety field, a multi-perspective coalmine ventilation management technology, with the goal of daily ventilation safety management, is introduced based on the real-time data from the coalmine monitoring system. Specifically, data acquisition unit is adopted to collect monitoring data in a real-time manner, and then integration of ventilation and coalmine gas data is made. After that, real-time online data analysis and display can be realized by using smart guidance and multi-screen linkage technologies according to chained features of the data. In this way, daily management interfaces based on specialized knowledge are shown in a friendly manner. Therefore, the technology proposed here can greatly improve coalmine management level and work efficiency. At the end, Huangling No. 2 coalmine is taken as an example to validate the relative technologies.

According to functional characteristics of different regions of the ventilation network, the complicated ventilation network can be further divided into non-overlapping and exhaustive safety subregions, which can provide scientific basis on classification guidance for ventilation analysis in a concise point of view. Therefore, it is of great application significance. Specifically, a method is proposed to divide safety subregions of the ventilation network. Then, six different safety subregions are defined, and they are air-inlet subregion, air-outlet subregion, air-consuming subregion, upstream of air-consuming subregion, downstream of air-consuming subregion and bypass subregion. After that, with an air-consuming spot (working face and heading face) as the center, depth-first search (DFS) algorithm is adopted to perform traversal analysis on coalmine ventilation network. Besides, ventilation network partition is achieved in combination with safety subregion partition algorithm. The method proposed here can be used for coalmine safety production analysis and management. Finally, Huangling coalmine is taken as an example to verify the correctness and feasibility of the method proposed.

C28H28N10O6Cu, triclinic, P1‾$P\bar{1}$(no. 2), a= 8.6869(7) Å, b= 9.0094(6) Å, c= 9.5839(8) Å, α= 74.288(7)°, β= 87.672(9)°, γ= 76.110(7)°, V= 700.69(11) Å3, Z= 1, Rgt(F) = 0.0492, wRref(F2) = 0.0979, T= 293(2) K.

The emergence and rapid development of Micro Blog has provided a new, swift and effective tool for the international trade. Nowadays this new tool is called Micro Blog internet marketing. Compared with blog, the micro log is much more convenient and the issued content is much more brief which makes the users issue messages timely and usually it is a much more effective channel for the readers and the bloggers to communicate with each other. Micro blog has quickly become a popular tool to communicate and every website has begun to open their own micro blog to propaganda their companies. The micro blog internet marketing can reduce the cost of international trade, improve trade efficiency and customer satisfaction and improve the enterprises’ awareness of competition. Therefore to lay much more emphasis on the role that the micro blog internet marketing has played in international trade is a must in the new century. This is also a way to increase the construction of internet information, thus regulating the micro internet marketing and promoting the healthy development of this field.

This paper describes a small, low cost, functional and practical design of electronic locks. The locks to AT89C52 microcontroller as the core, mainly composed of the microcontroller, LED digital tubes and relays. And through the C programming language, complete the functions of unlock password, prompt an error, LED display and timing, and even to achieve a function that when power-down the lock can remember passwords.

Based on the noise test data of existing workshop, the noise of new packing workshop was studied. The effection of several noise control scheme was predicted by simulation and analysis method, and the control scheme five was chose finally ,by which average noise reduction was about 4.5dB,and 8h equivalent continuous A-weighted sound pressure level of the pick-up coil station and packaging machine station was 84.9dB and 83.2dB respectively, the working environment of the new workshop was effectively improved, and the investment was estimated.

PET/60HBA-MWNTs Liquid Crystalline Polyester (LCP) composite was synthesis by melting polymerization process with a novel method of reacting in acetic anhydride solution. FTIR, XRD, POM, TGA and mechanical properties tests were applied for the characterization of modification of nanotube, crystallization property, thermal and mechanical properties. The results indicate that thermal and mechanical properties of LCP polyester are all enhanced with 0.3wt% MWNTs addition. The degradation temperature (Td) increased for 8°C and the modules, strength and breaking elongation are increased by 39.0%, 62.3% and 46.4% respectively.

Calcium carbonate (CaCO3) was mineralized in N,N-dimethylformamide (DMF)-H2O mixed solvents in the presence of polystyrene-b-poly (vinyl pyrrolidone) (PS-b-PNVP) block copolymer. The morphologies of PS-b-PNVP micelles and CaCO3 crystals were characterized by TEM and SEM. By varying the volume ratio of DMF-H2O, the CaCO3 crystals with different morphologies and phases were obtained. It was convinced that the morphology of crew cut micelles played a key role in the morphological formation of CaCO3.

In this paper, on the basis of in-depth study of data warehouse, OLAP, data mining and other key technologies, according to the characteristics of the Jpeen customer relationship management (Jpeen_CRM), developed a Web-based customer relationship management system. First of all, research the demand for Jpeen company and create Jpeen_CRM data warehouse. Second, create the OLAP multidimensional cube which is applied to the analysis of customer transactions. Using the decision tree algorithm to create mining models for customers to choose glasses, and gives pruning optimize decision tree. Using decision tree to classify users and recommend them the hot products they prefer. Finally, realize the Jpeen_CRM on J2EE platform, provide a decision support for Jpeen company to better serve customers and make the company itself have the advantages in a competitive environment.

With the rapid development of Internet and the network information resources can be Shared height, information system security face severe challenges. Firstly, this article from the current status of the network security, combined the new changes of the network security situation, getting the conclusion that the use of the necessity of intrusion detection system. And then it made a comprehensive overview on network security model put forward that was to achieve the purpose of security, which need to establish a reasonable network security model. By introducing the common types of network intrusion and network security technology, it lead to an intrusion detection system, and the concept of intrusion detection system, system structure and detection methods in detail in this paper.

The polymerization of para-acetoxybenzoic acid (PABA) and poly (ethylene terephthalate) to generate high molecular weight semi-aromatic copolyester was conducted successfully in the presence of acetic anhydride. The influence of acetic anhydride on the copolymerization was studied. The addition of acetic anhydride (2:1 mol AC2O /PET) in the polymerization system afforded the polymerized copolyester with an increased intrinsic viscosities (by 112.5%) and a decreased amount of insoluble fraction (by 80%). 1H-NMR analysis indicated that mole ratio of PET repeat unit and PHB was 42:58 with the addition of acetic anhydride, which was quite similar to the theoretical ratio and higher than traditional synthesized PET/PHB. The results show that the addition of acetic anhydride is effective not only in increasing the molecular weight but also in increasing benzene ring content in the copolyester.

The calculated result of the mathematical model based on the conventional transfer function has bigger deviation than the measured. In this paper the mathematical model of the work roll bending is derived. The modeling is different from conventional modeling used many presumptions and linear processing. The modeling calculated accurately the equivalent load spring using the method of influence function. The simulation results agree well with actual data of the bending system.

The superabsorbent membranes were prepared with acrylic acid (AA) and acrylamide (AM) as the monomers, poly (vinyl alcohol) (PVA) as toughening components, potassium persulfate (KPS) as the initiator agent, and glutaraldehyde (GA) as cross-linker by means of aqueous solution polymerization. Their structures were analyzed by FTIR spectroscopy. The effects of synthesis and heat-treatment conditions on water absorbency of superabsorbent membranes were investigated. Their water absorbency with different pH was studied as well. The results showed that the superabsorbent membranes exhibited intelligently pH-responsiveness.

With the enlargement of the scope of cloud computing application, the number of users and types also increases accordingly, the special demand for cloud computing resources has also improved. Cloud computing task scheduling and resource allocation are key technologies, mainly responsible for assigning user jobs to the appropriate resources to perform. But the existing scheduling algorithm is not fully consider the user demand for resources is different, and not well provided for different users to meet the requirements of its resources. As the demand for quality of service based on cloud computing and cloud computing original scheduling algorithm, the computing power scheduling algorithm is proposed based on the QoS constraints to research the cloud computing task scheduling and resource allocation problems, improving the overall efficiency of cloud computing system.

Relaxed technique is one of techniques for improving convergent rate of splitting iterative methods. In this paper,we study the convergence of both local relaxed parallel multisplitting method associated with USAOR multisplitting for solving a large sparse linear system whose coefficient matrix is an H-matrix.

Based on the remote sensing data and meteorological data of MODIS, this paper studied the water conservation capacity of different land use type of the ecotone of the forest and grassland in Hulun Buir with the help of the ArcGIS software. The results shows that the average of the water conservation capacity of 11 years of the whole ecotone of the forest and grassland in Hulun Buir is 62.78×108m3/yr. Among of these, the forest land accounts for 69.37% of the total water conservation capacity, and the grassland, the cultivated land and the unused land account for 23.36%, 3.67% and 3.60%. And the water conservation capacity of the four land use types presented a fluctuated improving trend. The average water conservation capacity in each year of the unit area of the ecotone achieved its maximum value, 498.43m3/hm2 ,in 2003, and achieved its minimum value,193.03m3/ hm2,in the year of 2007.

Four high-entropy alloys are prepared by an arc furnace under argon atmosphere. The microstructure and the properties of the alloys are investigated. The results show that NiCrCuCoFe alloy consists of a single FCC solid solution. When Al presents in the alloys, the microstructures of the alloys change to a BCC+ FCC solid solution. It is indicated that Al element promotes the formation of BCC solid solution, and Si and Mn promote the formation of complicated compounds. The hardness of alloys with BCC structure is higher than that of the alloys with FCC structure. The complicated compounds are formed, the hardness increases further. The highest hardness of the alloys reaches 882 HV due to the strengthening of the second phase precipitation.

A two-story masonry housing model was made in this paper. According to Intensity 7, adjusted Northridge record was selected to be the ground motion input in the pseudo-dynamic test. Pseudo-dynamic test and pseudo-static test were carried out to investigate the seismic behavior of the model structure. The time-history curves of the acceleration, velocity, displacement and restoring force of the structural response were obtained besides the time-history curves of the measuring points of the structure. Also the steel strain of the tie-columns and the hysteresis loops of the structure were obtained. The result shows multi-story confined masonry structures possess superior seismic performance if coordinated with the provision specified in the current compulsory design code and it can continue to use after appropriate dressing under the rarely earthquake.

In order to meet the monitoring needs of grain conditions, an embedded environmental monitoring system based on WinCE was introduced in detail in this paper. The hardware of the embedded environmental monitoring platform integrated a S3C2410 ARM microprocessor for grain signals processing. A four wire resistive touch screen was adopted as the input and output tools in this environmental monitoring equipment. Furthermore, Windows CE.net was selected as the embedded operating system of the slave computer terminals. The use of Windows CE.net emulator supported the debugging and simulation of the user application programs for environmental monitoring system. Finally, the experimental investigation results proved the stability and reliability of the environmental monitoring system.

RFID multi-tag identification process of the conflict on the basis of summing up the ALOHA class algorithm put forward an improved dynamic framed slotted ALOHA algorithm. Firstly, this paper uses the improved tag estimation algorithm to estimate the number of tags. Secondly, tag number is determined according to the length of the frame. Finally, tags are divided into several groups when the number of tags greater than the maximum frame length. The simulation results show that the efficiency of the algorithm has been improved obviously.

Tag collision problem is the key issue that affects the reading efficiency of the RFID system. This paper presents an improved binary tree anti-collision algorithm based on the jump dynamic tree.We used stack technology, backward strategy to avoid the reader identifying the tag from the tree roots. We used thinking of reducing bit to avoid the reader sending the highest collision bit set 0, which effectively reduce the data transmission bits. The simulation results and analysis show that that the efficiency of the algorithm has been obviously improved.

Metal magnetic memory testing is a new nondestructive testing method and used to diagnose ferromagnetic components stress concentration. Welding defects and stress concentration has the close relation. This paper used metal magnetic memory in the weld inspection to study an effective weld magnetic memory testing method, at the same time to verify the results by X-ray inspection.

Thermal stability can reflect the thermal degradation speed of polymers during the melt processing. In this paper, we used Kissinger, Flynn-Wall-Ozawa and Coats-Redfern method to study the kinetics of non-isothermal degradation of PFA. The thermal degradation activation energy obtained from the Kissinger method, Flynn-Wall-Ozawa method and Coats-Redfern method is 228.5 kJ/mol, 213.9 kJ/mol and 237.4 kJ/mol respectively. The Flynn-Wall-Ozawa method indicates the thermal degradation reaction PFA is a secondary reaction.

With the increase of drilling data scale, real-time optimal drilling engineering seems to be difficult only by manual or traditional computer data, numerical, even simple knowledge processing. In such a case, Integration knowledge system is proven to be helpful in optimal drilling and improvement of drilling efficiency. A integrated and shared platform is built up about multi-source heterogeneous drilling data and information, to establish the conditions of intelligent reasoning; A multi-hierarchy and multi-modality knowledge model is created based on Ontology, they can define the performance, structure, function, axiom and case of glossary in oil drilling optimization domain, and integrate drilling optimization requirement, static and dynamic drilling data and Problem-Solving Method(PSM)；An evolutionary uncertainty reasoning mechanism is built up to integrate rule and case reasoning based on Bayesian Network; An integrated knowledge system is exploited based on the knowledge model of and its reasoning. By application in oil field, the results show its intelligent level and reliability improve clearly, and prove that optimal drilling knowledge model created based on ontology can meet the neets of share and re-usability of knowledge in a special field, and the model has wide application prospects.

Short-term load forecasting is one of the most important routine works for power dispatch departments. The accuracy of load forecasting will exert direct effects on the safety, economy and stabilization of the power system running. Portrait and transverse comparability are employed to distinguish and correct bad load data, while wavelet analysis and multiple-time-period analysis used to eliminate long-term increasing weights, thus reducing the impact of the high-speed load increase on the accuracy of load forecasting.

By multi-rate networked control systems (NCS), we mean the sampling periods of the sensor, the controller and the actuator in networked control systems are not the same, that is to say there are more than one sampling rate in networked control systems. For the long time delay multi-rate NCS with event-driven controller and actuator, a stochastic discrete model is established under operator. The state feedback control laws for the multi-rate NCS in operator domain are designed by using a dynamic programming approach. The derived optimal LQG controller can be used as a delay-compensator for multi-rate NCS with long time delays. An example is given to verify the theory results of this paper.

The impact performance of PE can be greatly enhanced by the use of functionalized conch powder, while maintaining high tensile strength thus giving this study high potentiality for its practical applications. The conch powder was treated by titanate coupling agent NDZ-201 before use and the influence of different proportions of conch powder on the mechanical properties of PE/conch powder composite is discussed in this article. The impact strength has a maximum value of 63.4kJ/m2 and the frictional loss records a minimum of 4.27×10-1mm3/(Nm)-1 and 42.2% lower than that of pure PE.

Capillary rheometer was used to conduct preliminary study on the rheological behavior of SKYPEL thermoplastic polyester elastomer (TPEE). SKYPEL TPEE is a kind of non-Newtonian fluid and displays typical shear thinning behavior. Non-Newtonian index of the three samples varies from 0.69 to 0.77. With increasing temperature, the structure viscosity of the sample decreased and among them G172D is the smallest one under the same temperature.

MgO-CaO-ZrO2 composite materials were prepared in oxidizing atmosphere at 1550 oC with sintered magnesia, calcium oxide and partial stabilized zirconia as raw materials. Sintering performance of the composites was measured by the checking of the bending strength, the apparent porosity, the thermal expansivity and the thermal shock resistance of samples, respectively. The phase compositions and microstructures of the composites were investigated by XRD, SEM and EDS. The results showed that CaZrO3 phase was formed by high temperture reaction between ZrO2 and CaO, and phase compositions of the composites consisted of two phases of CaZrO3 and MgO. The sintering performance of composites were promoted further with increasing the content of ZrO2 due to the volume expansion caused by the reaction of the added ZrO2 and CaO to form CaZrO3 phase in the refractories.