Advanced Materials Research Vol. 461

Abstract: This paper introduces rheological property, thermo physical property, flow resistance and heat transfer characteristic of urban original sewage and the calculation thinking and method.

Abstract: In this paper, the additive-multiplicative hazards model for gap time data of recurrent events is investigated, and the estimating equation approach is presented for inference about regression parameters. Both asymptotic and finite sample properties of the proposed parameter estimates are established

Abstract: This paper deals with the research on user scheduling algorithm in downlink MIMO systems with limited feedback of channel state information (CSI). In this paper, we use vector quantization to simplify the procedure of user selection. By quantizing MIMO channel into several un-overlapped channel regions, we can get semi-orthogonal region sets with predefined threshold. Then, based on the semi-orthogonal region sets, we present a low complexity user scheduling algorithm. Simulation results show that the achieved sum rate by the presented algorithm can achieve nearly optimal sum rate while with much lower complexity than that of the existing algorithms

Abstract: This study aimed to develop a monoclonal antibody based icELISA method for Ractopamine (Rac) residue. For this purpose, mixed anhydride method was employed to synthesize the immunogen of Rac-BSA and 1, 4-butanediol diglycidyl ether was used to prepare the coating antigen of Rac-OVA, thus pursue the heterologous sensitivity. Through cell fusion technology, four Hybridoma named R1-B5, R2-B3, R2-C6, and R4-C8 were screened out, and the Kas of all mAbs were between 2.7 and 4.8×109 L/mol. Based on the R1-B5 mAb, a heterologous icELISA standard curve was developed. The working range was from 0.013 to 33.7 ng/mL, with LOD and IC50 value of 0.007 ng/mL and 0.67 ng/mL, respectively. Therefore, this icELISA can be used for detecting Rac residue in animal products.

Abstract: This paper studies the user scheduling in MIMO systems with queue control. We assume the data packets are buffered at the transmitter. By modeling the channel as a queuing system, the property of queue control is analyzed. Then, user scheduling algorithm with consideration of queue state and channel state together is also investigated. Simulation results show that queue control can achieve fairness and keep stability among users

Abstract: This paper reports an indirect competitive enzyme-linked immunosorbent assay (icELISA) using polyclonal antibody (pAb) for estradiol (E2) residues. After derivation, E2 haptens were conjugated to bovine serum albumin (BSA) and ovalbumin (OVA) through 1-Ethyl-3-(3-dimethylaminopropy) carbodiimide (EDC) method, and New Zealand white rabbits were immunized to produce anti-E2 pAb. The conjugation ratio of E2-BSA was proved to be 18.6:1 by an UV absorbance method. Based on the square matrix titration, an icELISA standard curve was developed. The dynamic range was from 0.16 to 128 ng/mL, with LOD and IC50 value of 0.08 ng/mL and 3.76 ng/mL, respectively. Except for a little cross-reactivity (16.2%) to estrone, this assay showed negligible cross-reactivity to other analogues tested. The results suggest that the produced anti-E2 pAb could be used to develop an icELISA method for the determination of E2 residues in animal-originally products.

Abstract: The water conservancy hydroelectric construction engineering major is establishing an operate in the reform in education and the course, should develop craft advantage, the tapping has the development scheme of the talented person of oneself special feature and quickly takes occupation capability as the course system of nucleus to construct and reform to practice teaching system, intensifies a student to practice to begin capability development and arouses a completely developing of the reform in education; Set up to practice the teaching mass guarantee system, intensify the construction of solid Xun matrix, the reform fulfillment teaching investigates a method, values to produce to learn wedge bonding and speeds the construction of high character teacher's troops. The teaching plans the reform of teaching mode talented person the key of development mode reform at, come out an and profession close correlation, foster a deluxe application person just new road son

Abstract: With respect to steel structure residential project by Hangxiao Steel Structure Co., Ltd. (shorted for HXSS), resource, energy consumption and the corresponding carbon dioxide emission data is calculated for each period in full life circle of building, i.e., building material production, construction, use, building dismantling, and is compared with regular practice model of similar buildings, and the influence on the environment by the construction of steel structure system. Through research, it's found that the steel structure residential building is prominently advantageous in energy consumption and carbon emission during the full life cycle.

Abstract: with the rapid development of national economy, the construction of our country and technical personnel requirements also produced corresponding changes, the demand for interdisciplinary talents gradually increased to the higher education has put forward higher requirements. The direction of the civil engineering course reform is changed to "large civil specialty” as the basic starting point, combine with the reform of talented person training mode, adjust the students' knowledge structure. The task of introduction to civil engineering is to cultivate the students' awareness of civil engineering major, make low grade students understand the civil engineering involved in the field of the content, methods, achievements and development situation about civil engineering comprehensive from the visual angle of safe academics, social and security technology, economy and management unity. The new understanding of civil engineering specialty, enhances the student to study the interest of engineering knowledge, broaden their knowledge. According to the positioning of the course, in the teaching process optimization of teaching materials, reasonable allocation of hours, adopt the suitable way of teaching organization teaching, and achieve good teaching results

Abstract: Through comparative research between actual projects in steel structure residence system of Hangxiao Steel Structure Co., Ltd.(shorted for “HXSS”) and comparative models in terms of land saving, material saving and energy saving, the performance of steel structure residence system in dealing with environment, environmental protection and saving is analyzed. The comparison results show that the steel structure residence system has certain advantages, however the performance in energy saving, particularly in consumption of building material transportation needs further improvement.