涩北一号气田治水分析

摘要：本文根据涩北一号气田的实际情况，对其治水进行了详细的分析，并结合实际，提出了分类治水的原则和具体的分类治水的措施，以及防水治水的策略，在实际应用中具有十分重要的价值。

GROUNDWATER QUALITY AND CONTAMINATION INDEX MAPPING IN CHANGCHUN CITY,CHINA

Groundwater in Changchun City, Jilin Province of China tends to be influenced by human activities. Chemical types of groundwater were detected in both shallow and deep groundwater were: HCO3--Ca2+ and HCO3--Ca2+·Mg2+ or HCO3--Mg2+·Ca2+; SO42--Ca2+ and SO42--Ca2+·Mg2+; Cl--Ca2+; and CO32--Na+. The deteriorations of groundwater quality due to the increase of TDS, NO3-+ NO2-(as Nitrogen) and TH contents have been observed from 1991 to 1998. Scatter analyses showed strong positive correlations between Ca2+, Cl-and NO3-ions and weak negative correlations between the depth of water table and Ca2+, SO42-, Cl-and NO3-ions. A mapping of contaminant index based on Chinese standard of groundwater showed that a large proportion of the groundwater in 1998 was deteriorated by human process. Despite their low values of sodium adsorption ratio (SAR), the most of the sampled wells were not suitable for drinking and agriculture purposes due to higher contents of NO3-, NO2-and Mn2+ ions.

Causes and Treatment Measures of Rural Highway Concrete Pavement Damages in Mountainous Area

Combined with the practical experience in constructing and maintenance managing the concrete pavement damage repair of Gaotang-Nenghuashan forest highway of Jiangle County,the common damage types and causes of rural highway concrete pavement in the northwestern mountainous area of Western Fujian Province were analyzed,and corresponding treatment measures to various damage were put forward.

Ethanol injection is highly effective for hepatocellular carcinoma smaller than 2cm

AIM： To analyze the long-term prognosis in a cohort of western cirrhotic patients with single hepatocellular carcinoma treated with ethanol injection.METHODS： One-hundred forty-eight patients with solitan/hepatocellular carcinoma were enrolled. The tumor diameter was lower than 2 cm in 47 patients but larger in the remaining 101 patients. The impact of some pre- treatment clinical and laboratory parameters and of tu- mor recurrence on patients＇ survival was assessed.RESULTS： Among the pre-treatment parameters, only a tumor diameter of less than 2 cm was an independent prognostic factor of survival. The occurrence of new nodules in other liver segments and the neoplastic portal invasion were linked to a poorer prognosis at univariate analysis. Patients with a single hepatocellular carcinoma smaller than 2 cm showed a better 5-year cumulative survival （73.0% vs 47.9%） （P = 0.009）, 3-year local re- currence rate （29.1% vs 51.5%） （P = 0.011）, and 5-year distant intrahepatic recurrence rate （52.g% vs 62.8%） （P = 0.054） compared to patients with a larger tumor. CONCLUSION： The 5-year survival rate of patients with single hepatocellular carcinoma 〈 2 cm undergoing ethanol injection is excellent and comparable to that achieved using radiofrequency ablation.

Chinese Herbal Medicine in Treatment of Polyhydramnios:a Meta-analysis and Systematic Review

Objective To compare the efficacy of Chinese herbal medicine （therapy A） or Chinese herbal medicine plus indomethacin （therapy B） with that of indomethacin alone （therapy C） in treating polyhydramnios. Methods Literatures published up to April 2012 were retrieved from PubMed, Embase and Cochrane library, Chinese National Knowledge Infrastructure （CNKI）, Chinese Scientific and Technological Periodical Database （VIP）, Wangfang, and Traditional Chinese Medicine online. Two researchers collected data independently. The assessment of methodological quality was based on Cochrane handbook and the materials were analyzed with software RevMan 5.1.2. The outcome measure index was relative risk or difference of mean value （95% confidence interval）. The following outcomes were evaluated： （1） general clinical improvement rate; （2） maximum vertical pocket depth; （3） amniotic fluid index （AH） value; （4） rate of fetal ductus arteriosus constriction; （5） incidence of adverse events. Results Based on the search strategy, 5 trails involving 1017 patients were finally included. Compared with therapy C, therapy A decreased the rate of fetal ductus arteriosus constriction （P〈0.01）. Therapy B was more effective than therapy C in general clinical improvement and decrease of AH for polyhydramnios （P〈 0.01 ）. No serious adverse events were reported in therapy A and therapy B. Conclusions Compared with therapy C, therapy A and therapy B may appear to be more effective for polyhydramnios. However, the exact effect needs to be confirmed with well-designed large-scale clinical trials.

Novel strategies for the treatment of diabetic macular edema

Macular edema such as diabetic macular edema(DME) and diabetic retinopathy are devastating back-of-theeye retinal diseases leading to loss of vision. This area is receiving considerable medical attention. Posterior ocular diseases are challenging to treat due to complex ocular physiology and barrier properties. Major ocular barriers are static(corneal epithelium, corneal stroma, and blood-aqueous barrier) and dynamic barriers(bloodretinal barrier, conjunctival blood flow, lymph flow, and tear drainage). Moreover, metabolic barriers impede posterior ocular drug delivery and treatment. To overcome such barriers and treat back-of-the-eye diseases, several strategies have been recently developed which include vitreal drainage, laser photocoagulation and treatment with biologics and/or small molecule drugs. In this article, we have provided an overview of several emerging novel strategies including nanotechnology based drug delivery approach for posterior ocular drug delivery and treatment with an emphasis on DME.

Analysis of Harnessing Waste Fine Aggregate for Sustainable Production of Concrete Elements

This paper focuses on cement composites based on waste fine aggregate obtained from hydroclassification all-in-aggregate in the Central Pomerania region in northern Poland. In the world there are regions with poor supplies of coarse aggregate, which is one of the most essential raw materials used for production of ordinary concrete. In these regions, instead of coarse aggregate, there are often very large deposits of fine aggregate such as natural sand and fine all-in-aggregate. These raw materials may be used for concrete production of standard mechanical properties. Manufacturing concrete based on locally available fine aggregate is inexpensive which encourages the local production of fine aggregate cement composites instead of ordinary concrete, requiring gravel transported from distant places.

Meta-analysis on integrative medicine for the treatment of malignant ascites: a comparative study

OBJECTIVE: To compare the efficacy of integrated Chinese and Western Medicine with that of only Western Medicine for the treatment of malignant ascites.METHODS: All randomized controlled trials(January 2004 to March 2013) from the China National Knowledge Infrastructure Database, Chinese Biomedical Literature Database, and Wanfang Database were searched with keywords. Meta-analysis was conducted by combining the odds ratios of the individual studies. Review Manager 5.0 was used for the analysis.RESULTS: One thousand one hundred and fifty-six patients from 19 randomized controlled trails were included. Of them, 630 patients were treated with integrated Chinese and Western Medicine(the integrative group), and 526 patients were treated with Western Medicine alone(the control group). The Meta-analysis showed that the total effective rate was 78.73% in the integrated group, and 59.13% in the control group. The effective percentage was sig-nificantly higher in the integrative group than that of the control group [OR = 2.85, 95% CI(2.16,3.74),P < 0.01].CONCLUSION: The short-term curative effect in the integrative group was better than that in the control group. Integrative medicine may be beneficial for malignant ascites.