资源类型

期刊论文 1196

会议视频 58

会议信息 5

会议专题 1

年份

2024 2

2023 96

2022 149

2021 131

2020 68

2019 74

2018 69

2017 94

2016 94

2015 61

2014 27

2013 19

2012 35

2011 35

2010 50

2009 29

2008 28

2007 22

2006 22

2005 12

展开 ︾

关键词

发展战略 28

可持续发展 26

中国 25

能源 15

发展 14

政策建议 12

对策 11

农业科学 9

食物安全 9

发展趋势 8

战略研究 8

环境 8

2035年 7

创新 7

技术 6

技术预见 6

水资源 6

2035 5

产业化 5

展开 ︾

检索范围:

排序: 展示方式:

南海北部深水区油气勘探进展与未来展望

米立军 ,周守为 ,谢玉洪 ,张功成 ,杨海长

《中国工程科学》 2022年 第24卷 第3期   页码 58-65 doi: 10.15302/J-SSCAE-2022.03.007

摘要:

加大油气勘探开发力度,减少石油和天然气对外依存度,保障国家能源安全是关系国家经济社会发展的全局性、战略性问题。“十一五”以来,中国海洋石油集团有限公司在南海北部深水领域持续加强基础研究,加快技术创新和加大勘探投入,相继获得一批重大油气勘探发现。本文阐述了五项重大勘探地质理论认识和两项勘探技术创新成果,探讨了深水油气勘探将要面临的挑战和应对策略,展望了南海北部深水区中深层、潜山及岩性圈闭三大领域的勘探前景。研究指出,南海北部陆缘深水区的拆离作用控制了珠江口盆地和琼东南盆地大型凹陷的形成,发育了湖相、海陆过渡相和海相三套规模烃源岩;高‒ 变地温控制凹陷烃源岩快速生烃,建立了琼东南盆地深水区大型轴向峡谷水道油气成藏模式、白云凹陷深水区深水扇天然气晚期成藏模式和深水区“断‒ 脊”联控油气差异聚集成藏模式。同时自主创新研发了立体震源激发和“犁形”缆接收的宽频采集处理技术。在多项地质理论认识和创新技术的指导下,发现以“深海一号”(陵水17-2)等为代表的一批大中型气田,对于保障粤港澳大湾区能源供应、促进海南自贸区(港)能源绿色发展、推动我国油气增储上产具有重要意义。

关键词: 南海北部;深水区;油气勘探;深水天然气    

Are the SNPs of NKX2-1 associated with papillary thyroid carcinoma in the Han population of NorthernChina?

null

《医学前沿(英文)》 2014年 第8卷 第1期   页码 113-117 doi: 10.1007/s11684-014-0310-x

摘要:

Papillary thyroid carcinoma (PTC) is one of the most common tumors of the thyroid gland. The common risk factors of PTC include ionizing radiation, positive family history, and thyroid nodular disease. PTC was identified in Europeans by conducting a genome-wide association study, and a strong association signal with PTC was observed in rs944289 and NKX2-1 (located at the 14q13.3 locus), which was probably the genetic risk factor of PTC. This study aimed to examine the association of this gene with PTC in Chinese. A total of 354 patients with PTC and 360 healthy control subjects from the Han population of Northern China were recruited in the study. These individuals were genotyped to determine rs12589672, rs12894724, rs2076751, and rs944289. The association of rs944289 with PTC was obtained (C vs. T, P=0.027, OR=1.264, 95% CI=1.026-1.557; and C/C-C/T vs. T/T, P=0.034, OR=1.474, 95% CI=1.028-2.112). Conducting a subgroup analysis, we found a marginal difference in the allele frequency distribution of rs944289 (adjusted P=0.062) between the patients with PTC and multi-nodular goiter and the control subjects. We also observed an interaction (P=0.029; OR=2.578, 95% CI=1.104-6.023) between rs944289 and diabetes in patients with PTC. In conclusion, rs944289 was associated with an increased risk of PTC in the Han population of Northern China, but no clear association was observed in either of the tag single nucleotide polymorphisms of NKX2-1.

关键词: NKX2-1     papillary thyroid carcinoma     the Han population of Northern China     association    

Improving simulations of sulfate aerosols during winter haze over Northern China: the impacts of heterogeneous

Meng Gao,Gregory R. Carmichael,Yuesi Wang,Dongsheng Ji,Zirui Liu,Zifa Wang

《环境科学与工程前沿(英文)》 2016年 第10卷 第5期 doi: 10.1007/s11783-016-0878-2

摘要: Incorporating the missing heterogeneous oxidation of S(IV) by NO into the WRF-Chem model. Sulfate production is not sensitive to increase in SO emission. The newly added reaction reproduces sulfate concentrations well during winter haze. We implemented the online coupled WRF-Chem model to reproduce the 2013 January haze event in North China, and evaluated simulated meteorological and chemical fields using multiple observations. The comparisons suggest that temperature and relative humidity (RH) were simulated well (mean biases are -0.2K and 2.7%, respectively), but wind speeds were overestimated (mean bias is 0.5 m?s ). At the Beijing station, sulfur dioxide (SO ) concentrations were overpredicted and sulfate concentrations were largely underpredicted, which may result from uncertainties in SO emissions and missing heterogeneous oxidation in current model. We conducted three parallel experiments to examine the impacts of doubling SO emissions and incorporating heterogeneous oxidation of dissolved SO by nitrogen dioxide (NO ) on sulfate formation during winter haze. The results suggest that doubling SO emissions do not significantly affect sulfate concentrations, but adding heterogeneous oxidation of dissolved SO by NO substantially improve simulations of sulfate and other inorganic aerosols. Although the enhanced SO to sulfate conversion in the HetS (heterogeneous oxidation by NO ) case reduces SO concentrations, it is still largely overestimated by the model, indicating the overestimations of SO concentrations in the North China Plain (NCP) are mostly due to errors in SO emission inventory.

关键词: Sulfate aerosols     Winter haze     WRF-Chem     Northern China    

Seroprevalence of influenza viruses in Shandong, Northern China during the COVID-19 pandemic

《医学前沿(英文)》 2022年 第16卷 第6期   页码 984-990 doi: 10.1007/s11684-022-0930-5

摘要: Nonpharmaceutical interventions (NPIs) have been commonly deployed to prevent and control the spread of the coronavirus disease 2019 (COVID-19), resulting in a worldwide decline in influenza prevalence. However, the influenza risk in China warrants cautious assessment. We conducted a cross-sectional, sero-epidemiological study in Shandong Province, Northern China in mid-2021. Hemagglutination inhibition was performed to test antibodies against four influenza vaccine strains. A combination of descriptive and meta-analyses was adopted to compare the seroprevalence of influenza antibodies before and during the COVID-19 pandemic. The overall seroprevalence values against A/H1N1pdm09, A/H3N2, B/Victoria, and B/Yamagata were 17.8% (95% CI 16.2%–19.5%), 23.5% (95% CI 21.7%–25.4%), 7.6% (95% CI 6.6%–8.7%), and 15.0 (95% CI 13.5%–16.5%), respectively, in the study period. The overall vaccination rate was extremely low (2.6%). Our results revealed that antibody titers in vaccinated participants were significantly higher than those in unvaccinated individuals (P < 0.001). Notably, the meta-analysis showed that antibodies against A/H1N1pdm09 and A/H3N2 were significantly low in adults after the COVID-19 pandemic ( P < 0.01). Increasing vaccination rates and maintaining NPIs are recommended to prevent an elevated influenza risk in China.

关键词: influenza virus     seroprevalence     antibody     COVID-19     cross-sectional study    

Occurrence and distribution of micro- and mesoplastics in the high-latitude nature reserve, northernChina

《环境科学与工程前沿(英文)》 2022年 第16卷 第9期 doi: 10.1007/s11783-022-1534-7

摘要:

• The first study on micro(meso)plastics (MMPs) in the Liaohe River Reserve is reported.

关键词: Microplastics     Mesoplastics     Water     Sediment     Characteristic     Risk Assessment    

In quest of the origin of ancient northern city of China: An implication from the Book of Odes

DAI Fudong

《结构与土木工程前沿(英文)》 2007年 第1卷 第4期   页码 389-392 doi: 10.1007/s11709-007-0052-9

摘要: Sorting out some paragraphs in (collection of the earliest poetry in China), this paper makes analysis of the formation, construction process and technology of the ancient northern city of China. Relevan

关键词: analysis     construction     formation     collection     paragraphs    

Water resource conservation promotes synergy between economy and environment in China’s northern drylands

《环境科学与工程前沿(英文)》 2022年 第16卷 第3期 doi: 10.1007/s11783-021-1462-y

摘要:

•Considering evenness provides a more accurate assessment of sustainable development.

关键词: Water conservation     Environmental protection     Industry transformation     Evenness     Sustainable development     Dryland    

北方旱区农田水肥效应分析

高亚军,李生秀

《中国工程科学》 2002年 第4卷 第7期   页码 74-79

摘要:

结合多年的田间试验研究,对前人诸多研究结果进行了总结和深入分析。结果表明:农田水肥效应大小与试验方法有关,田间试验与模拟试验得到的结论相反。主要原因在于研究中"水"的概念各不相同,从旱棚试验或盆栽试验的结果推断水肥效应与实际情况相距较大。多数情况下,养分亏缺仍是北方旱区作物增产的主要限制因子。灌水的效果取决于土壤底墒、生育期降水、土壤肥力及灌水时期等各种因素。在现有的水资源条件下,提高养分供应水平是北方旱区大部分农田作物增产的主要途径。加强夏闲期降水的蓄积、提高土壤底墒是冬麦区作物高产的重要条件。

关键词: 水肥效应     北方旱区     田间试验     模拟试验    

Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

《能源前沿(英文)》 2013年 第7卷 第4期   页码 413-428 doi: 10.1007/s11708-013-0274-6

摘要: Effective utilization of renewable energy sources and efficient management of electric energy are essential for any developing countries like India. This can be envisioned through the implementation of concepts of smart grid (SG). One of the key requisites for SG implementation is that the grid should be completely observable. Renovation of conventional Indian power grid to a SG necessitates incorporation of the phasor measurement units (PMUs) in the present power grid measurement and monitoring system. Since the cost of PMU is high and any bus containing a PMU makes the neighboring connected buses observable, optimal placement of PMUs is very important for complete observability of the grid. This paper proposes optimal redundant geographical locations in the northern, eastern and north-eastern regions of Indian power grid for PMU placement. The PMUs installed in these geographical locations will make the grid completely observable and maintain the observability under the conditions of failure of some PMUs or branch outages. Integer linear programming has been used for finding the optimal PMU locations. The results proposed in this paper can be a stepping stone for revamping the Indian power grid to a SG ensuring complete observability during different contingency conditions.

关键词: phasor measurement unit (PMU)     smart grid (SG)     Indian power grid     northern region Indian power grid (NRIPG)     eastern region Indian power grid (ERIPG)     north-eastern region Indian power grid (NERIPG)     redundancy     integer linear programing (ILP)    

天然气水合物——未来的新能源

金庆焕

《中国工程科学》 2000年 第2卷 第11期   页码 29-34

摘要:

现有资料表明,全球石油和天然气的后备资源还能维持40余年,因此科技专家将天然气水合物列为未来的新能源。在世界各海域目前已发现天然气水合物矿区82处,据地质学家估算,各海区天然气水合物中甲烷的碳总量是全球所有石油、天然气和煤的碳总量的2倍。

广州海洋地质局对南海北部陆坡区开展了天然气水合物的调査,高分辨率地震调査资料显示,在南海北部陆坡区存在天然气水合物明显的地球物理标志。

关键词: 天然气水合物     新能源     南海北部陆坡    

assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, NorthernChina

Zhaoming WANG,Ranhao SUN,Haiping ZHANG,Liding CHEN

《环境科学与工程前沿(英文)》 2015年 第9卷 第2期   页码 240-249 doi: 10.1007/s11783-014-0646-0

摘要: Concentrations of the heavy metals Cu, Ni, Pb, Zn, Cd, and Cr were examined in surface water and sediment from the Luan River inChina,. With a decline in Cu and Ni concentration found in surface water at downstream stations. This finding suggests that water currents are a major explanatory factor in heavy metal contamination. The abundance of Cr, Pb, and Cd observed in the middle reaches of the river indicates heavy metal contamination in local areas, although there was an obvious decrease in concentrations in the water downstream of the Daheiting Reservoir. The significant rising trend in Cu, Pb, and Ni seen the sediment farther away from the river also suggests that anthropogenic activities contribute to heavy metal pollution Sediments were therefore used as environmental indicators, with sediment assessment was conducted using the geo-accumulation index ( ) and the potential ecological risk index ( ). The values revealed that Cd (3.13) and Cr (2.39) had accumulated significantly in the Luan River. The values for most (89%) of the sampling stations were higher than 300, suggesting that sediment from the Luan River poses a severe ecological risk, with the potential ecological risks downstream higher than that in the upper and middle streams. Good correlations among Pb/Ni, Pb/Cd, Cu/Pb, and Cu/Cd in the water and Cr/Ni in the sediment were observed. Cluster analysis suggested that Cd may have various origins, being derived from anthropogenic sources.

关键词: heavy metal     water     sediment     geo-accumulation index     Luan River    

Increasing prevalence of antibiotic resistance genes in manured agricultural soils in northern China

Nan Wu, Weiyu Zhang, Shiyu Xie, Ming Zeng, Haixue Liu, Jinghui Yang, Xinyuan Liu, Fan Yang

《环境科学与工程前沿(英文)》 2020年 第14卷 第1期 doi: 10.1007/s11783-019-1180-x

摘要: Manure application increased the abundances of ARGs and MGEs in agricultural soils. Five classes of ARGs and two MGEs were prevalent in manured and unfertilized soils. Genera Pseudomonas and Bacteroidetes might be the dominant hosts of intI1 and ermF. The abundances of ARGs positively correlated with TC, TN, OM, Cu, Zn, Pb and MGEs. Land application of manure tends to result in the dissemination of antibiotic resistance in the environment. In this study, the influence of long-term manure application on the enrichment of antibiotic resistance genes (ARGs) and mobile genetic elements (MGEs) in agricultural soils was investigated. All the analyzed eight ARGs (tetA, tetW, tetX, sulI, sulII, ermF, aac(6’)-Ib-cr and blaTEM) and two MGEs (intI1 and Tn916/1545) were detected in both the manured and control soils, with relative abundances ranging from 10-6 to 10-2. Compared with the control soil, the relative abundances of ARGs and MGEs in manured soils were enriched 1.0–18.1 fold and 0.6–69.1 fold, respectively. High-throughput sequencing analysis suggested that at the phylum level, the bacteria carrying intI1 and ermF might be mainly affiliated with Proteobacteria and Bacteroides, respectively. The dominant genera carrying intI1 and ermF could be Pseudomonas and Bacteroides, independent of manure application. Correlation analysis revealed that ARGs had strong links with soil physicochemical properties (TC, TN, and OM), heavy metals (Cu, Zn and Pb) and MGEs, indicating that the profile and spread of ARGs might be driven by the combined impacts of multiple factors. In contrast, soil pH and C/N exhibited no significant relationships with ARGs. Our findings provide evidence that long-term manure application could enhance the prevalence and stimulate the propagation of antibiotic resistance in agricultural soils.

关键词: Antibiotic resistance     Mobile genetic elements     Soil     Manure     Heavy metals    

天山北坡经济带工业绿色发展政策建议研究

谢明辉,白卫南,白璐,卢庆治,乔琦

《中国工程科学》 2017年 第19卷 第4期   页码 79-87 doi: 10.15302/J-SSCAE-2017.04.013

摘要:

天山北坡经济带是中国“一带一路”战略中最大的综合经济带,其绿色发展模式将为“一带一路”沿线国家实现区域绿色发展提供借鉴。本文采用绩效评估方法,从区域和产业两个维度对天山北坡经济带各经济区环境绩效进行评估,并根据评估结果将天山北坡经济带六个经济区划分为三翼:北翼(奎屯—克拉玛依—乌苏经济区)环境绩效最佳,南翼(伊宁—霍城—察布查尔经济区、乌鲁木齐—昌吉经济区、吐鲁番—哈密经济区)环境绩效其次,中翼(石河子—玛纳斯—沙湾经济区、博乐—精河—阿拉山口经济区)环境绩效较差。最后,基于环境绩效评估结果和区域产业发展定位,对三翼工业绿色发展提出战略建议。

关键词: 天山北坡经济带     环境绩效评估     工业绿色发展     政策建议     产业    

天山北坡经济带生态文明建设战略研究

杨荣金,段宁,舒俭民,张惠远,贾尔恒﹒阿哈提,王浩,张林波,乔琦,尹伟伦,张强,孙美莹

《中国工程科学》 2017年 第19卷 第4期   页码 40-47 doi: 10.15302/J-SSCAE-2017.04.007

摘要:

为落实国家生态文明建设战略,响应丝绸之路经济带和海上丝绸之路愿景与行动计划,2014—2016年中国环境科学研究院开展了“新疆天山北坡经济带生态文明建设战略研究”。研究结合丝绸之路经济带愿景与行动和天山北坡经济带的区域定位以及发展实际,提出了天山北坡经济带生态文明建设的国土空间格局优化战略、资源优化配置与可持续开发战略、产业经济绿色发展战略、生态环境保护优先战略、体制机制改革创新战略和内引外联向西开放战略。天山北坡经济带生态文明建设战略研究为加快我国西部生态文明建设、推动丝绸之路绿色经济带延伸、落实西部大开发“十三五”规划和天山北坡经济带发展规划提供决策支撑。

关键词: 天山北坡经济带     生态文明     丝绸之路经济带     区域发展     战略研究    

海床流体迁移致灾机理与风险防控研究现状及展望

田兆阳,贾永刚 ,朱超祁 ,卢龙玉 ,郭煦,冯学志,王慧,王宏威,何满潮,彭建兵

《中国工程科学》 2023年 第25卷 第3期   页码 131-140 doi: 10.15302/J-SSCAE-2023.03.012

摘要:

海床流体迁移指海底液体、气体、海水在海床内外的传输运移过程,对海洋地质灾害的孕育、发展、演化具有重要影响;我国海域内广泛发育的海底滑坡等典型灾害,与海床流体迁移现象之间呈现出明显的关联性。本文从海床流体迁移的灾害效应出发并以南海北部为例,分析了典型流体迁移系统类型、地质灾害成因分布特征,梳理了海床流体迁移的观测与调查方法;总结了海床流体迁移致灾与风险防控方向的科学问题,针对性提出了有待开展的重点研究内容。研究建议,从深部高压流体向上迁移影响灾害孕育、天然气水合物分解流体迁移影响灾害发展、海洋水体运动导致灾害发生3 个方面着手,研究海床流体迁移影响下的海底灾害孕育、发展与触发演化过程机理,海床流体迁移 ‒ 地质环境 ‒ 人类活动耦合作用下海底灾害风险防控理论方法,支持突破深海探测多系统集成、多尺度联合、多维信息处理等技术瓶颈。

关键词: 海床流体迁移;海洋地质灾害;风险防控;南海北部    

标题 作者 时间 类型 操作

南海北部深水区油气勘探进展与未来展望

米立军 ,周守为 ,谢玉洪 ,张功成 ,杨海长

期刊论文

Are the SNPs of NKX2-1 associated with papillary thyroid carcinoma in the Han population of NorthernChina?

null

期刊论文

Improving simulations of sulfate aerosols during winter haze over Northern China: the impacts of heterogeneous

Meng Gao,Gregory R. Carmichael,Yuesi Wang,Dongsheng Ji,Zirui Liu,Zifa Wang

期刊论文

Seroprevalence of influenza viruses in Shandong, Northern China during the COVID-19 pandemic

期刊论文

Occurrence and distribution of micro- and mesoplastics in the high-latitude nature reserve, northernChina

期刊论文

In quest of the origin of ancient northern city of China: An implication from the Book of Odes

DAI Fudong

期刊论文

Water resource conservation promotes synergy between economy and environment in China’s northern drylands

期刊论文

北方旱区农田水肥效应分析

高亚军,李生秀

期刊论文

Optimal redundant placement of PMUs in Indian power grid — northern, eastern and north-eastern regions

Pathirikkat GOPAKUMAR, G. Surya CHANDRA, M. Jaya Bharata REDDY, Dusmata Kumar MOHANTA

期刊论文

天然气水合物——未来的新能源

金庆焕

期刊论文

assessment of heavy metal contamination in surface water and sediments: a case study from Luan River, NorthernChina

Zhaoming WANG,Ranhao SUN,Haiping ZHANG,Liding CHEN

期刊论文

Increasing prevalence of antibiotic resistance genes in manured agricultural soils in northern China

Nan Wu, Weiyu Zhang, Shiyu Xie, Ming Zeng, Haixue Liu, Jinghui Yang, Xinyuan Liu, Fan Yang

期刊论文

天山北坡经济带工业绿色发展政策建议研究

谢明辉,白卫南,白璐,卢庆治,乔琦

期刊论文

天山北坡经济带生态文明建设战略研究

杨荣金,段宁,舒俭民,张惠远,贾尔恒﹒阿哈提,王浩,张林波,乔琦,尹伟伦,张强,孙美莹

期刊论文

海床流体迁移致灾机理与风险防控研究现状及展望

田兆阳,贾永刚 ,朱超祁 ,卢龙玉 ,郭煦,冯学志,王慧,王宏威,何满潮,彭建兵

期刊论文