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INDIAN PERSPECTIVE: SUSTAINABILITY OF BT COTTON IS A MATTER OF CONCERN NOW!

《农业科学与工程前沿（英文）》 2022年第9卷第1期页码 146-149 doi: 10.15302/J-FASE-2021415

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Occurrence of estrogenic endocrine disrupting chemicals concern in sewage plant effluent

Yan SUN, Huang HUANG, Ying SUN, Chao WANG, Xiaolei SHI, Hongying HU, Takashi KAMEYA, Koichi FUJIE

《环境科学与工程前沿（英文）》 2014年第8卷第1期页码 18-26 doi: 10.1007/s11783-013-0573-5

摘要： The purpose of this study was to give a worldwide overview of the concentrations of typical estrogenic endocrine disrupting chemicals (EDCs) in the effluent of sewage plants and then compare the concentration distribution of the estrogenic EDCs in ten countries based on the survey data of the estrogenic EDCs research. The concentrations of three main categories (totally eight kinds) of estrogenic EDCs including steroidal estrogens (estrone (E1), estradiol (E2), estriol (E3) and 17α-ethynylestradiol (EE2)), phenolic compounds (nonylphenol (NP) and bisphenol A (BPA)) and phthalate esters (dibutyl phthalate (DBP) and dibutyl phthalate (2-ethylhexyl) phthalate (DEHP)) in the effluents of sewage plants reported in major international journals over the past decade were collected. The statistics showed that the concentration distributions of eight kinds of EDCs were in the range of ng·L to μg·L . The concentrations of steroidal estrogens mainly ranged within 50.00 ng·L , and the median concentrations of E1, E2, E3 and EE2 were 11.00, 3.68, 4.90 and 1.00 ng·L , respectively. Phenolic compounds and phthalate esters were found at μg·L level (some individual values were at the high level of 40.00 μg·L ). The median concentrations of BPA, NP, DBP and DEHP were 0.06, 0.55, 0.07 and 0.88 μg·L , respectively. The concentrations of phenolic compounds and phthalate esters in the effluents were higher than that of steroids estrogens. The analysis of the concentration in various ten countries showed that steroids estrogens, phenolic compounds and phthalate esters in sewage plant effluents were detected with high concentration in Canada, Spain and China, respectively.

关键词： estrogenic endocrine disrupting chemicals concentration distribution sewage plant

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Endochronic damage constitutive model for fully-graded aggregate mass concrete

SONG Yupu, WANG Huailiang

《结构与土木工程前沿（英文）》 2007年第1卷第3期页码 274-280 doi: 10.1007/s11709-007-0035-x

摘要： The behavior of deformation and strength of a fully-graded aggregate concrete under complex stress state is the basis of the nonlinear analysis and design for mass concrete structures such as concrete dams. In this paper, based on the combined endochronic theory with damage mechanics and on the quantities of experimental data, an endochronic damage constitutive model suitable for various aggregate grade concrete is proposed. This model takes into consideration the scale effect and the effect of wet screen sieve of aggregate in which the concept of yield surface is not needed and the difference of damage evolution rule of various graded aggregate concrete is a concern. The proposed model is used to analyze the deformation and strength of fully-graded aggregate mass concrete and the wet screened aggregate concrete specimens. The calculated results are in good agreement with experimental data, which can be used as a guide for the design of arch dams and other mass concrete structures.

关键词： concept surface design concern strength

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东北地区有关水土资源配置生态与环境保护和可持续发展的若干战略问题研究

中国工程院“东北水资源”项目组

《中国工程科学》 2006年第8卷第5期页码 1-24

摘要：

东北地区包括辽宁省、吉林省、黑龙江省和内蒙古自治区的东部地区即赤峰市、通辽市、兴安盟和呼伦贝尔市，土地总面积约124×10⁴km²，人口1.19亿。东北地区不仅工业发达，而且有我国最大的林区和最好的草原，也是全国最大的商品粮生产基地。由于长期粗放式的生产经营，部分工农业频临衰竭，环境受到严重损害，主要表现在：可采森林枯竭；很多地方的草地退化、沙化和盐化；耕地的黑土资源严重流失；水质严重污染，河流干枯，地下水超采，湿地大量减少；工矿城市遗留严重的矿山环境问题。振兴东北老工业基地的唯一选择是及时转变经济增长方式，建设资源节约、环境友好型社会。为此，项目组提出了8项战略性建议：土地利用的总体应当是耕地总量不再增加，林、草、湿地不再减少，城市和工矿用地合理控制；开发农业的巨大潜力，建设我国最大的农产品基地；必须进一步采取措施，才能保证东北林业的可持续发展；促进城市化健康发展，合理解决城市的水源危机和煤矿城市的地质灾害；加强地质勘探，提高资源保证程度；将保护水环境，防治水污染作为振兴老工业基地的重大任务；西部地区应节制社会经济用水，保护生态与环境；水资源配置应为人与自然和谐发展创造条件。

关键词：中国东北地区水土资源配置生态与环境保护可持续发展