With the continuous development of China's social economy, the demand for natural resources is also increasing day by day. As an important energy source for the economic development of our country, petroleum and c...With the continuous development of China's social economy, the demand for natural resources is also increasing day by day. As an important energy source for the economic development of our country, petroleum and chemical industry in our country is developing continuously with the progress of the society. At present, the petroleum and chemical industry in our country has gradually stepped into the forefront of the world. As a kind of non-renewable resources, oil is an important resource formed by the earth's geological process for thousands of years. Nowadays, the increasing demand for oil resources in the international community has resulted in the depletion of oil resources and the difficulty and complexity of oil exploitation projects. Therefore, under the current social environment of shortage of oil resources, effective measures must be taken to comprehensively enhance the geological exploration in the later stage, so as to fully cover the production benefits of oil field exploitation. This paper will sort out and analyze the geological potential tapping and efficiency enhancement in the later stage of oil field development.展开更多
In the process of oilfield development, oilfield dewatering project has always been a big problem for oilfield developers. Because the original oilfield development technology uses a single well, the efficiency of the...In the process of oilfield development, oilfield dewatering project has always been a big problem for oilfield developers. Because the original oilfield development technology uses a single well, the efficiency of the single well is very low, which results in the deterioration of the effect in the development process of many oilfields and the loss in oilfield development. Therefore, in order to improve the benefit of oilfield development and the effect of water flooding development, this paper makes an in-depth study on the water-stable and oil-efficient development of high-water-cut and later-stage complex fault-block oilfields.展开更多
Field experiments were carried out in northern Zhejiang Province. Three insecticides (methamidophos,Shachongshuang and triazophos) were used to control the rice leaffolder Cnaphalocrocis medinalis and rice striped ste...Field experiments were carried out in northern Zhejiang Province. Three insecticides (methamidophos,Shachongshuang and triazophos) were used to control the rice leaffolder Cnaphalocrocis medinalis and rice striped stemborer Chilo suppressalis in rice fields during 18—27 days after transplantating. The impacts of timing and insecticides on the population development of brown planthopper Nilaparavata lugens was surveyed by direct counting on the plants or by tapping method.展开更多
Purpose: To investigate the relationship between preterm delivery and developmental outcomes in children born at 34 - 36 weeks of gestation (late preterm period). Methods: This study reviewed the cases of singleton la...Purpose: To investigate the relationship between preterm delivery and developmental outcomes in children born at 34 - 36 weeks of gestation (late preterm period). Methods: This study reviewed the cases of singleton late preterm children and full-term (38 - 40 weeks of gestation) children born at Showa University Hospital. The developmental outcomes at 3 years of age were assessed based on the results of questionnaires sent to the families by mail. In addition, the incidence of developmental delays was compared between the late preterm and full-term children. In the full-term control group, perinatal characteristics (neonatal gender, Apgar score, Cesarean delivery, birth weight < 10th percentile, birth weight < 3rd percentile) were matched with those of the late preterm cases. We compared categorical variables using Fisher’s exact test. For variables with a non-normal distribution, Welch’s t-test was applied. A p-value of <0.05 was considered to be statistically significant. Results: The rate of return of the questionnaires was 25.9% (121) among the cases and 25.8% (163) among the controls. The frequency of developmental delays was 6.6% among the cases, compared with 4.3% among the controls. Conclusions: Matching the perinatal characteristics of the subjects, the frequency of developmental delays was similar between the two groups.展开更多
目的初步评价Dubowitz神经学评估法-第2版(The Neurological Assessment of the Preterm and Fullterm Newborn Infant-Second Edition)对晚期早产儿发育行为结局的预测效果,为完善晚期早产儿随访体系提供线索。方法选取2016年10月-2017...目的初步评价Dubowitz神经学评估法-第2版(The Neurological Assessment of the Preterm and Fullterm Newborn Infant-Second Edition)对晚期早产儿发育行为结局的预测效果,为完善晚期早产儿随访体系提供线索。方法选取2016年10月-2017年3月间在上海市第一妇婴保健院出生的低风险晚期早产儿(34+0~36+6孕周)116例组成随访队列,于超早期(生后6h内)和矫正"足月"(矫正胎龄40孕周)时分别进行Dubowitz神经学评估,矫正6月龄时进行贝利-Ⅲ诊断测试(Bayley Scale of Infant and Toddler Development-3rd Edition),采用Pearson相关系数分析Dubowitz神经学评估分数与认知、运动发育商之间的相关性。结果矫正6月龄时,认知发育商与超早期和矫正"足月"异常体征分数相关(r=0.184和-0.187,P均<0.05),与矫正"足月"姿势和肌张力、反射两个维度分数相关(r=0.187和0.182,P均<0.05);运动发育商与超早期姿势和肌张力、异常体征两个维度相关(r=0.201和0.219,P均<0.05)。结论 Dubowitz神经学评估对晚期早产儿的发育行为结局具有一定的预测价值,值得在更大的人群中进一步研究和应用。展开更多
文摘With the continuous development of China's social economy, the demand for natural resources is also increasing day by day. As an important energy source for the economic development of our country, petroleum and chemical industry in our country is developing continuously with the progress of the society. At present, the petroleum and chemical industry in our country has gradually stepped into the forefront of the world. As a kind of non-renewable resources, oil is an important resource formed by the earth's geological process for thousands of years. Nowadays, the increasing demand for oil resources in the international community has resulted in the depletion of oil resources and the difficulty and complexity of oil exploitation projects. Therefore, under the current social environment of shortage of oil resources, effective measures must be taken to comprehensively enhance the geological exploration in the later stage, so as to fully cover the production benefits of oil field exploitation. This paper will sort out and analyze the geological potential tapping and efficiency enhancement in the later stage of oil field development.
文摘In the process of oilfield development, oilfield dewatering project has always been a big problem for oilfield developers. Because the original oilfield development technology uses a single well, the efficiency of the single well is very low, which results in the deterioration of the effect in the development process of many oilfields and the loss in oilfield development. Therefore, in order to improve the benefit of oilfield development and the effect of water flooding development, this paper makes an in-depth study on the water-stable and oil-efficient development of high-water-cut and later-stage complex fault-block oilfields.
文摘Field experiments were carried out in northern Zhejiang Province. Three insecticides (methamidophos,Shachongshuang and triazophos) were used to control the rice leaffolder Cnaphalocrocis medinalis and rice striped stemborer Chilo suppressalis in rice fields during 18—27 days after transplantating. The impacts of timing and insecticides on the population development of brown planthopper Nilaparavata lugens was surveyed by direct counting on the plants or by tapping method.
文摘Purpose: To investigate the relationship between preterm delivery and developmental outcomes in children born at 34 - 36 weeks of gestation (late preterm period). Methods: This study reviewed the cases of singleton late preterm children and full-term (38 - 40 weeks of gestation) children born at Showa University Hospital. The developmental outcomes at 3 years of age were assessed based on the results of questionnaires sent to the families by mail. In addition, the incidence of developmental delays was compared between the late preterm and full-term children. In the full-term control group, perinatal characteristics (neonatal gender, Apgar score, Cesarean delivery, birth weight < 10th percentile, birth weight < 3rd percentile) were matched with those of the late preterm cases. We compared categorical variables using Fisher’s exact test. For variables with a non-normal distribution, Welch’s t-test was applied. A p-value of <0.05 was considered to be statistically significant. Results: The rate of return of the questionnaires was 25.9% (121) among the cases and 25.8% (163) among the controls. The frequency of developmental delays was 6.6% among the cases, compared with 4.3% among the controls. Conclusions: Matching the perinatal characteristics of the subjects, the frequency of developmental delays was similar between the two groups.
文摘目的初步评价Dubowitz神经学评估法-第2版(The Neurological Assessment of the Preterm and Fullterm Newborn Infant-Second Edition)对晚期早产儿发育行为结局的预测效果,为完善晚期早产儿随访体系提供线索。方法选取2016年10月-2017年3月间在上海市第一妇婴保健院出生的低风险晚期早产儿(34+0~36+6孕周)116例组成随访队列,于超早期(生后6h内)和矫正"足月"(矫正胎龄40孕周)时分别进行Dubowitz神经学评估,矫正6月龄时进行贝利-Ⅲ诊断测试(Bayley Scale of Infant and Toddler Development-3rd Edition),采用Pearson相关系数分析Dubowitz神经学评估分数与认知、运动发育商之间的相关性。结果矫正6月龄时,认知发育商与超早期和矫正"足月"异常体征分数相关(r=0.184和-0.187,P均<0.05),与矫正"足月"姿势和肌张力、反射两个维度分数相关(r=0.187和0.182,P均<0.05);运动发育商与超早期姿势和肌张力、异常体征两个维度相关(r=0.201和0.219,P均<0.05)。结论 Dubowitz神经学评估对晚期早产儿的发育行为结局具有一定的预测价值,值得在更大的人群中进一步研究和应用。
