Short-term clinical efficacy of capecitabine combined with oxaliplatin in the treatment of stage Ⅱ and Ⅲ rectal cancer after operation with Shengmai Yin

[Objective]To observe the short-term clinical efficacy of ciprofloxacin+oxaliplatin combined with Shengmaiyin onⅡ/Ⅲrectal cancer patients.[Method]120(2011.2-2018.2,Department of Surgical oncology,The Center Hospital Affiliated to Shenyang Medical College)Ⅱ/Ⅲrectal cancer patients,then they were randomly divided into control group and observation group,every group include 60 patients.The control group were given ciprofloxacin+oxaliplatin,and the three-dimensional conformal radiotherapy,observation group were given Shengmaiyin,treatment for 1 month,then assessed the clinical efficacy,the immunidy index(cellular immunity and humoral immunity),and record the adverse reaction.[Results]After treatment,short term clinical efficacy in observation group significantly better than the control group but the difference had no statistical significance(p>0.05).After treatment,the immunidy index(cellular immunity and humoral immunity)in the two groups were better than before treatment,the difference had statistical significance(p<0.05),and the observation group were better than control group,the difference had statistical significance(p<0.05).During the treatment,reducing leucocyte and platelet,nausea,vomit,etc were appearring in both groups,the clinical in the observation group was better than control group(94.00%vs 90.91%),but the difference had no statistical significance(P>0.05).[Conclusions]Using the ciprofloxacin+oxaliplatin combined with Shengmaiyin onⅡ/Ⅲrectal cancer patients treatment can improve the immunidy function and short-term clinical efficacy.

Prediction for permeability index of blast furnace based on VMD-PSO-BP model

The permeability index is one of the important production indicators to monitor the operation of blast furnace.It is crucial to grasp the trends of changes in the new permeability index in time.For the complex vibration spectrum of the permeability index,a prediction model of the permeability index based on the VMD-PSO-BP(variational mode decomposition-particle swarm optimization-back propagation)method was proposed.Firstly,the key factors that affect the permeability index of blast furnace were studied from multiple perspectives.Then,the permeability index was divided into multiple sub-modes based on the difference of frequency bands by the VMD algorithm,and a PSO-BP prediction model was established for each sub-mode.Finally,the prediction results of each sub-mode were summed to obtain the final one.The results show that the composite prediction accuracy by using the VMD algorithm is 3%higher than that of the traditional prediction method,which has better applicability.

Formation of Hearth Sediment during Vanadium Titano-magnetite Smelting in Blast Furnace No.7 of Chengde Iron and Steel Company

The large quantity of sediment produced in the hearth during vanadium titano-magnetite smelting in a blast furnace（BF） affects the stability of the blast furnace operation. Testing and analysis of the sediment in the hearth of Chengde Iron and Steel Company？s BF No.7 revealed that it was mainly concentrated in the location below the tuyere and above the iron notch. Notably, some of the bonding material（sediment） consisted of greater than 50% pig iron, and the pig iron distributed in the slag was granular. It is proposed that a large quantity of Ti C and Ti（C,N） are deposited on the surface of the pig iron. These high melting point materials mix with iron drops, preventing the slag from flowing freely, thus leading to the formation of bonding materials. In addition, the viscosity and melting temperature of the slag in the tuyere areas fluctuate greatly, and thus the properties of the slag are unstable. Moreover, the slag contains large quantities of carbon, which results in the reduction of Ti O2. The resultant precipitation of Ti is followed by the formation of Ti C in the slag, which also leads to an increase in the viscosity of the slag and difficulty in achieving separation of the slag-iron. In fact, all of these factors interact with each other, and as a result, sediment is formed when the operating conditions in the hearth fluctuate.