Maintenance,Repair,and Reinforcement Measures for Dilapidated Small and Medium-Sized Bridges

The paper initiates by exploring the importance of maintaining,repairing,and reinforcing bridges.Subsequently,it delves into routine and preventative maintenance measures tailored for small to medium-sized bridges.Additionally,the paper examines repair and reinforcement techniques specifically designed for deteriorated small and medium-sized bridges,encompassing methods for fortifying both the bridge foundation and upper and lower structures.Lastly,the paper proposes suggestions aimed at fostering discussions and exchanges on the development of maintenance and repair processes for deteriorated small and medium-sized bridges.

Typical application of Rogowski coils in inspection of electrobath

During the aluminum electrolytic roasting process,each component of the electrobath of aluminum performs unsteadily when the electrolytic bath is in the pre-roasting stage. It is important to monitor the currents of the anodes and the cathodes of the aluminum electrobath at regular intervals. Both practice and investigation indicate that Rogowski coil can be adopted to measure heavy direct current of the anodes and the cathodes of the aluminum electrobath. The paper not only introduces the typical application of the Rogowski coil to inspect the state of aluminum electrobath in the roasting process, but also analyzes the principles of the coil sensor including its dynamic properties and some important measurement results respectively. The optimal parameters of the coil can be simulated by means of an advanced simulation tool: simulink tools based on MATLAB soft environment. Based on the gathered current data, an even-current coefficient has been introduced, and the current curve can be drawn. Since they are applied in AL-Electrolyzing, it is possible to distinguish the anode of which the current is not evenly distributed, and to take adjusting measures over a period of time to ensure that the current is evenly distributed.

Modulation of various enzyme activities and lipid peroxidation by Schima wallichii(DC.)Korth in mice bearing Dalton's ascitic lymphoma

The effect of ethanol extract of Schima wallichii(SWE)was studied in the Swiss albino mice bearing Dalton's ascitic lymphoma(DAL)after nine consecutive days administration.The tumor cells were then extracted at 2,4,8,12 and 24 h post drug treatment for the estimation of glutathione(GSH),glutathione-s-transferase(GST),catalase(CAT),superoxide dismutase(SOD),and lipid peroxidation.We found that tumor cells had higher amount of GSH,GST,CAT and SOD;Treating tumorized mice with SWE reduced the level of GSH and the activities of GST,CAT and SOD in a time dependent manner up to 24h post-treatment followed by an increased lipid peroxidation.The liver function test revealed that aspartate aminotransferase(AST),and alanine aminotransferase(ALT)did not increase,indicating that it did not exert toxic effects on the liver.The assay of uric acid and creatinine were also in normal range.Our study indicated that tumor cells had higher amount of GSH,GST,CAT and SOD;the treatment of SWE reduced the level of GSH,GST,CAT and SOD,increased the lipid peroxidation at the same time,which may be responsible for its tumor cell killing effects.Meanwhile,it did not produce biochemical stress in the liver of tumorized mice.

Reconstruction Mode of Rural Dilapidated Houses in Alpine and Gorge Area of Southwest China——A Case Study of Scientific Identification and Precision Reconstruction of Rural Dilapidated Houses in Luquan County,Yunnan Province

The transformation of dilapidated houses in rural areas is not only a livelihood project related to the broad masses of rural people,but also a major project to win the battle against poverty. Luquan Yi and Miao Autonomous County,Yunnan Province,located in the high mountain and gorge area along Jinsha River,is one of the key counties of poverty alleviation and development with a wide range of poverty and a deep degree of poverty. The incidence of poverty is 22. 21%. Housing security is the focus,difficulty and emphasis of poverty alleviation in this county,the number of dilapidated houses is large,the type is complex,the transformation is difficult,and the implementation cost is high.Since the beginning of 2017,Luquan County has faced difficulties,explored in depth,pioneered and innovated,and completed the renovation of 54 801 dilapidated houses in an all-round way. It created a road full of characteristics and effectiveness of rural dilapidated housing transformation,and explored a set of effective scientific identification and accurate transformation models for rural dilapidated housing worthy of reference and promotion. Successful renovation of dilapidated houses,combined with industrial poverty alleviation,education poverty alleviation,health poverty alleviation and other accurate poverty alleviation measures,have made Luquan County win a decisive victory in the fight against poverty. By the end of December 2018,the incidence of poverty in the county had dropped to 0. 54%,and 115 poor villages( including 83 extremely poor villages) had successfully shaken off poverty. This paper analyzes and summarizes the concrete methods,main effects,characteristics and bright spots,successful experience,and reference significance of the scientific identification and precise transformation mode of rural dilapidated houses in this county,so as to provide a necessary reference for the transformation of rural dilapidated houses in Yunnan Province and even poor counties in similar provinces( cities and districts).

Consideration of the Planning for the Reconstruction of Aging and Dilapidated Houses in Beijing's Old Town

In the past 41 years after the foundingof the People’s Repubilc, many buildings,with a total floor space of more than80,000,000 square meters, have been

Research and Discussion Held on the Relationship between Reconstruction of Dangerous and Dilapidated Buildings in Beijing and Preservation of the Style of the Ancient Capital

Form Sept.10 to Sept.12,1990,the of-fice of Beijing planning committee invitedover 50 people to hold discussion on