Method to Predict the Coke Rate Based on BP Neural Network

Coke rate is a very important technique index in the processing of metallurgical, and it is also an important goal that should be reached and controlled in practice.The blast furnace is a countercurrent heat and mass exchange reactor involving the solid, liquid and gaseous phases. Using computer encoded mathematical and statistical methods can not get the precise result. An improved 9-9-1 BP(Back propagation) neural network was trained and used in the prediction of the coke rate. The result indicates that the BP nets can predict coke rate accurately and the error between prediction and real coke rate less than 2%. And the use of a hybrid model in actual on-line intelligence control was also discussed.     

Method in Data-Preprocessing Based on Correlation Analysis

Traditional methods in Data Preprocessing haven't made good use of the internal information among the data, so the outcome inevitably apart from the real data greatly and can't appear more information among the data. The authors make use of the concept of correlation coefficient and idea of correlation analysis. A correlation analysis method is given with concrete mathematics. The authors also remedy the lost data from data source, and prove the feasibility of the method through perform mathematical calculations on mass data. The method avails the relationships among the data and drives the data known to remedy the data unknown, and it can do with the data-preprocessing problem that only have the current data not have the historical data.     

Power-theft-preventing Technology for Three-phase Three-element Active Electric Power Meter

Although nowadays there are many electric power measuring methods in china,some of them still have many power theft preventing bugs.To measure big and middle consumers' electric power consumption ,it is hard to prevent consumers from stealing power energy by the means of current which is difficult to be checked up by relevant products and preventing stealing power energy technology, because of using CTs to converting current.The authors especially use the example of the three phase three element active electric power meter, analyses other power theft methods and summarizes the new preventing stealing power energy technology. In accordance with the characteristic of the power measuring and on the basis of the analyzing the right method of resolving the problem,the three phase four wire system power theft preventing device can detect all sorts of stealing ,especially to the stealing by the means of current in time and accutately.This device has acquired good effect in the application of power system.     

Study on Evaluating the Pozzolanicity of CFB Sulphur- Fixed Coal Ashes

There is no appropriate method or uniform standard for evaluating the pozzolanicity of CFB sulphur-fixed coal ashes,leading to difficulty in use of it as building material,because CFB sulphur-fixed coal ash has higher content of f-CaO and SO_3 than that of ordinary ash.In this paper the appropriate evaluating methods are developed through theoretical analysis and experiments with reference to the National standards GB2847 for the pozzolanic materials and GB12957-91for the testing method of the activity of the industrial wastes,the compressive strength ratio is suggested by determination of 28 day compressive strength ratio of ground CFB sulphur-fixed coal ashes-clinker to ground clinker.It is shown that this evaluating method gives the results consistent with those from other methods.     

Study on Effect of Longitudinal Reinforcement Ratio on Shear Behavior of Restrained Beams with Web Reinforcement

In this paper, five restrained beams with web and different longitudinal reinforcement ratio as well as above longitudinal reinforcement truncated were tested under static point loads. On this basis, the overall process of cracking development under shear and the effect of longitudinal reinforcement ratio on shear strength was investigated     

A Method for Online Measurement of Dielectric Loss of HV Capacitive Equipment Insulation

It is still a major problem for research on online monitor dielectric dissipation factor of high voltage equipment insulation. In the field, new methods are paid attention by researchers especially. At present, there are no methods achieving the satisfactory measurement results. Based on the voltage and current at their respective zero crossed points, this paper proposes the integral measurement method which can be used to measure the dielectric dissipation factor of high voltage capacitive apparatus. The formula for dielectric dissipation factor angle computation is deduced by theoretical analysis and the computation results are achieved by digital simulation. Meanwhile, this paper explains the effect to measurements by system frequency, content of harmonic and zero-drift and draws the relevant error curves. It also proposes the measures to reduce the integral measurement method presented in this paper,which can convert measurement of small signal into that of big signal and accurately measure dielectric loss of capacitive apparatus. It also possesses great anti jamming ability under strong electromagnetic interference environment. The online measurement system can detect the dielectric dissipation factor of high voltage equipment by the integral measurement method.     

Microcomputer Network Management Information System for Construction Engineering Invite and Bidding

To assure that inviting and bidding are accomplished legally, normally and orderly in the construction engineering, a tangible market came into being by means of novel technologies, such as computers, networks and information managing so that exoteric, fair and equitable principles are embodied during inviting and bidding in the construction engineering. A framework model of the information managing system for inviting and bidding is proposed, which owns common functions and can be applied to usual construction engineering bargaining. Functions and characteristics of the computer network management system, which was developed and applied on the basis of the framework model, for construction engineering inviting and bidding information are demonstrated. In addition, pivotal technologies of developing the system also are expatiated.Anticipated effects are gained and the system is proved to own a friendly man machine interface after running and applying near a year. Maneuverability and expansibility is competent for inviting and bidding in the tangible construction market.     

A fragment of a 70-kDa Heterodera glycines heat shock protein (HgHSP70) interacts with soybean cyst nematode-resistant GmSHMT08

Soybean cyst nematode(SCN) Heterodera glycines is considered as the major constraint to soybean production. Gm SHMT08 at Rhg4 locus on chromosome 08, encoding a serine hydroxylmethyltransferase, is a major gene underlying resistance against H. glycines in Peking-type soybeans. However, the molecular mechanism underpinning this resistance is less well characterized, and whether Gm SHMT08 could interact with proteins in H. glycines remains unclear. In this study, yeast two-hybrid screening was con...