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Phenanthrene sorption to environmental black carbon in sediments from the Song-Liao watershed (China)

Jinghuan ZHANG, Mengchang HE, Chunye LIN, Ke SUN, Bin MEN, John L. ZHOU,

《环境科学与工程前沿(英文)》 2009年 第3卷 第4期   页码 434-442 doi: 10.1007/s11783-009-0150-0

摘要: Black carbon (BC) in ten contaminated sediments from the Song-Liao watershed, NE China, was isolated upon treatments using a combustion method at 375°C, and the isolates’ sorption isotherms for phenanthrene (Phen) were determined. All sorption isotherms were nonlinear and fitted well by the Freundlich model. A negative relation was found between Freundlich sorption nonlinearity parameter ( values) and BC/total organic carbon (TOC) content of the original sediments (=0.687, <0.01), indicating the dominance of BC in Phen sorption nonlinearity. The BC isolates from this industrialized region had values of 0.342 to 0.505 and log values of 6.02 to 6.42(μg·kg·OC)/(μg·L) for Phen. At a given , the BC had higher value than the original sediments, revealing a higher sorption capacity for BC. BC was responsible for 50.0% to 87.3% of the total sorption at =0.05 , clearly indicating the dominance of BC particles in overall sorption of Phen by sediments.

关键词: phenanthrene     sorption     black carbon     sediment     Song-Liao watershed    

Synthesis and anticancer activity of (+)-nopinone-based 2-amino-3-cyanopyridines

Shengliang LIAO,Shibin SHANG,Minggui SHEN,Xiaoping RAO,Hongyan SI,Jie SONG,Zhanqian SONG

《农业科学与工程前沿(英文)》 2015年 第2卷 第4期   页码 335-340 doi: 10.15302/J-FASE-2015079

摘要: Twelve (+)-nopinone-based 2-amino-3-cyanopyridines 4a–l were synthesized from (–)-β-pinene. The structures of these compounds were characterized by FT-IR, H NMR, and ESI-MS. All the compounds were tested for their anticancer activity against lung cancer cell line A549, gastric cancer cell line MKN45 and breast cancer cell line MCF7 by MTT method, respectively. The results showed that compounds 4f, 4j and 4k had promising anticancer activity against these cancer cell lines, in particular, compound 4f exhibited broad-spectrum and highly efficient anticancer activity against cell lines A549, MKN45 and MCF7 with IC of 23.78, 67.61 and 53.87 µmol·L , respectively. The preliminary analysis of the structure activity relationship implied that the Br or Cl substituted group of the benzene ring in these derivatives significantly contributed to the anticancer activity.

关键词: b-pinene     nopinone     synthesis     2-amino-3-cyanopyridine     anticancer    

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

《环境科学与工程前沿(英文)》 2012年 第6卷 第5期   页码 595-595 doi: 10.1007/s11783-012-0452-5

ATTRIBUTES UNDER DIFFERENT AGROECOSYSTEMS AND ITS IMPLICATIONS FOR AGRICULTURE IN THE CHOKE MOUNTAIN WATERSHED

《农业科学与工程前沿(英文)》 doi: 10.15302/J-FASE-2023502

摘要:

● Soil properties varied within coefficients of variation ranging from 7% to 169%.

关键词: agroecosystem     Choke Mountain watershed     coefficients of variation     Ethiopia     soil quality indicator    

Climate change and sandy land development in Qinghai Lake Watershed, China

SUN Yongliang, LI Xiaoyan, LIU Lianyou, XU Heye, ZHANG Dengshan

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 340-348 doi: 10.1007/s11783-008-0045-5

摘要: The Qinghai Lake Watershed, containing the largest saline lake in northwest of China, has suffered from severe sandy land development in recent years. This paper analyzes its daily precipitation, temperature, and wind from 1958 to 2001, and the spatial and temporal distributions of sandy land through the interpretation of remote sensing images covering four years (1977, 1987, 2000, and 2004). Results showed that since the middle of the 1960s, the daily precipitation () of 0 < ≤ 5 mm decreased, while the > 20 mm increased significantly ( < 0.05) in their annual total amounts and days. The maximum daily precipitation also increased significantly. Both the maximum dry spell and the total dry spell of more than ten days had a significant upward trend. Since the beginning of the 1960s, all the extremely high, extremely low and mean temperatures increased significantly ( < 0.01), at a rate of 0.1°C/10a, 0.2°C/10a, and 0.2°C/10a, respectively. The days with extremely high temperature had a significant upward trend, while the days with extremely low temperature had a significant downward trend. The Qinghai Lake was significantly shrinking ( < 0.01) and provided abundant sediments for Aeolian erosion. The NNW wind prevailed in the watershed, and the largest scale wind was from the west and concentrated on the dry months. As a result, the sandy land was mainly born on the east bank of Qinghai Lake. The total sandy land area in the watershed had grown from 587.4 km, 660.7 km, 697.6 km to 805.8 km, accordingly, its area percentage growing from 2.0%, 2.2%, 2.4% to 2.7%, respectively.

System engineering for water pollution control at the watershed level in China

Wei MENG,

《环境科学与工程前沿(英文)》 2009年 第3卷 第4期   页码 443-452 doi: 10.1007/s11783-009-0037-0

摘要: The present water pollution situation at watershed level in China has been systematically analyzed. The causes of water pollution are attributed to the extensive economic developmental pattern, poor wastewater treatment, and a lack of nonpoint pollution control. The problems of water pollution control at watershed level include a lack of thought and approach, developmental delay in the environmental standard system, an inadequate monitoring ability, and an inefficient implementation of laws and regulations. From 2006 to 2020, water pollution control and governance will be a national key specific project of science and technology in China. The strategies of this project include establishing a water pollution control system at watershed level, orienting a healthy aquatic ecosystem, conducting risk management, and using comprehensive methods. The goal is to establish and complete a technological system of pollution control and management in three five-year phases. The main tasks are to develop common technologies, management systems, and mechanisms for lake eutrophication control, river pollution control, urban water environmental pollution control, potable water safety, and water environmental management. The bottlenecks of water pollution control and management in China could be systematically removed, and the demonstration of the system engineering approach will be conducted at selected key watersheds.

关键词: water pollution control     watershed     system engineering     sustainability     integrated watershed management     key specific project of science and technology    

流域水生态承载力理论与优化调控模型方法

彭文启

《中国工程科学》 2013年 第15卷 第3期   页码 33-43

摘要:

流域管理正在从环境及资源的单一要素管理向流域水生态系统综合管理转变,流域水生态承载力是流域水生态系统综合管理的基本理论。针对流域水生态完整性保护管理需求,建立了流域水生态承载力概念模型,提出了流域水生态承载力概念,揭示其“分区、分期”属性和“量、质、序”递进综合约束作用等基本内涵,通过分析其优化调控特性及优化调控关键变量,建立了流域水生态承载力分区耦合概念模型,形成了基于系统动力学方法的流域水生态承载力分区分期耦合模型方法,并以辽河太子河流域为例,进行了实例应用。

关键词: 流域水生态承载力     优化调控模型    

流域生态学及其应用

杨志峰

《工程(英文)》 2018年 第4卷 第5期   页码 582-583 doi: 10.1016/j.eng.2018.08.010

An approach to calculating allowable watershed pollutant loads

Yu GUO, Haifeng JIA

《环境科学与工程前沿(英文)》 2012年 第6卷 第5期   页码 658-671 doi: 10.1007/s11783-012-0446-3

摘要: To improve the management of discharge pollutants loads in the reservoirs’ watershed, an approach of the allowable pollutants loads calculation and its allocation, based on the water environment model, was proposed. Establishment of the approach framework was described at first. Under the guidance of this framework, two major steps were as follows: modeling and scenario analysis were involved and should be applied to support the decision of discharge loads management; Environmental Fluid Dynamic Code (EFDC) model was selected as the kernel model in this framework. In modeling step, spatial discretization for establishing cell map in model, data preprocessing, parameter calibration and uncertainty analysis (which is considered as the significantly relevant factor of the margin of safety (MOS)), were conducted. As a result of the research, the model-based approach presented as a combination of estimation and precise calculation, which contributed to scenario analysis step. Some integrated modules, such as scenario simulation, result analysis and plan optimization were implemented as cycles in the scenario analysis. Finally, allowable pollutant loads under various conditions were calculated. The Chaihe Reservoir in Liaoning Province, China was used as a case study for an application of the approach described above. Results of the Chaihe reservoir water quality simulation, show good agreement with field data and demonstrated that the approach used in the present study provide an efficient and appropriate methodology for pollutant load allocation.

关键词: Source water protection     watershed management     pollutants load allocation     Environmental Fluid Dynamic Code (EFDC) modeling     margin of safety     statistical analysis    

Clinical characteristics and risk factors for mortality in cancer patients with COVID-19

Junnan Liang, Guannan Jin, Tongtong Liu, Jingyuan Wen, Ganxun Li, Lin Chen, Wei Wang, Yuwei Wang, Wei Liao, Jia Song, Zeyang Ding, Xiao-ping Chen, Bixiang Zhang

《医学前沿(英文)》 2021年 第15卷 第2期   页码 264-274 doi: 10.1007/s11684-021-0845-6

摘要: Patients with cancer are at increased risk of severe infections. From a cohort including 3060 patients with confirmed COVID-19, 109 (3.4%) cancer patients were included in this study. Among them, 23 (21.1%) patients died in the hospital. Cancer patients, especially those with hematological malignancies (41.6%), urinary carcinoma (35.7%), malignancies of the digestive system (33.3%), gynecological malignancies (20%), and lung cancer (14.3%), had a much higher mortality than patients without cancer. A total of 19 (17.4%) cancer patients were infected in the hospital. The clinical characteristics of deceased cancer patients were compared with those of recovered cancer patients. Multivariate Cox regression analysis indicated that a Nutritional Risk Screening (NRS2002) score≥3 (adjusted hazard ratio (HR) 11.00; 95% confidence interval (CI) 4.60–26.32; <0.001), high-risk type (adjusted HR 18.81; 95% CI 4.21–83.93; <0.001), tumor stage IV (adjusted HR 4.26; 95% CI 2.34–7.75; <0.001), and recent adjuvant therapy (<1 month) (adjusted HR 3.16; 95% CI 1.75–5.70; <0.01) were independent risk factors for in-hospital death after adjusting for age, comorbidities, D-dimer, and lymphocyte count. In conclusion, cancer patients showed a higher risk of COVID-19 infection with a poorer prognosis than patients without cancer. Cancer patients with high-risk tumor, NRS2002 score≥3, advanced tumor stage, and recent adjuvant therapy (<1 month) may have high risk of mortality.

关键词: cancer     COVID-19     SARS-CoV-2     risk factor     mortality    

利用太赫兹时域光谱法和微腔器件检测样品:综述 Special Feature on Precision Measurement and Instr

Lin CHEN, Deng-gao LIAO, Xu-guang GUO, Jia-yu ZHAO, Yi-ming ZHU, Song-lin ZHUANG

《信息与电子工程前沿(英文)》 2019年 第20卷 第5期   页码 591-607 doi: 10.1631/FITEE.1800633

摘要: 简要回顾了上海理工大学在用于探测样品的太赫兹时域光谱系统和微腔器件领域的研究进展。首先,通过施加高电场研究了基于砷化镓m-i-n二极管的宽频太赫兹辐射源。然后,详细介绍了我们实验室产生的自由空间太赫兹时域光谱系统和光纤耦合太赫兹时域光谱系统及其在药物/癌症检测中的应用。为进一步提高信噪比和高灵敏度,我们引入3种通用微腔结构实现微量样品检测。本文总结了这些结构的特性、性能和潜在的传感应用。

关键词: 太赫兹时域光谱;微腔;金属孔阵列;波导腔;伪局域表面等离子体    

River Chief System (RCS): An experiment on cross-sectoral coordination of watershed governance

Longfei Wang, Jiaxin Tong, Yi Li

《环境科学与工程前沿(英文)》 2019年 第13卷 第4期 doi: 10.1007/s11783-019-1157-9

摘要:

The trans-regional characteristics of watershed governance produce more problems beyond the capacity of each individual water-related department, leading to the fragmentation of watershed management. The River Chief System (RCS) has experienced swift developments over the past decade in China by appointing the local government heads as river chiefs. RCS works efficiently in the short-term due to its superiority in the inclusion of clear responsibility, authority, and multi-sectoral collaboration. However, the characteristics of the authority-based vertical coordination of the hierarchical system remain unchanged, and therefore the problems of organizational logic and the responsibility dilemma still exist. Tasks including perfecting of laws, integrated watershed management, and public participation still need to be completed. RCS reflects the routine and characteristics of the migration of national governance, and as such provides new insights for other developing countries in the design of river management systems.

关键词: River Chief System     Watershed governance     Cross-sectoral coordination     Environmental protection    

Control division of agricultural non-point source pollution at medium-sized watershed scale in Southeast

HUANG Jinliang, HONG Huasheng, ZHANG Luoping

《环境科学与工程前沿(英文)》 2008年 第2卷 第3期   页码 333-339 doi: 10.1007/s11783-008-0035-7

摘要: This paper presents the study carried out for controlling agricultural non-point source pollution (NSP) in a medium-sized watershed covering 1.47 × 10 km in Southeast China using quantitative analysis coupled with geographic information system (GIS), universal soil loss equation (USLE), soil conservation service-curve number (SCS-CN), nutrient loss equations, and annualized agricultural nonpoint source model (AnnAGNPS). Based on the quantitative results derived from GIS and environmental models, five control division units were generated for NSP control in Jiulong River watershed, namely, controlling unit for soil losses, controlling unit for livestock breeding and soil losses, controlling unit for excessive fertilizer use and livestock breeding, controlling unit for soil losses and fertilizer use, and controlling unit for excessive fertilizer use and soil losses. This study proved that integrating GIS with environmental models can be adopted to efficiently evaluate major sources and contributors of NSP, and identify the critical source areas of NSP, which enables adjusting measures to local conditions by further control division units developed through such study for control and management of water quality degradation induced by NSP in the Jiulong River watershed.

Water environmental planning and management at the watershed scale: A case study of Lake Qilu, China

HUANG Kai, GUO Huaicheng, LIU Yong, ZHOU Feng, YU Yajuan, WANG Zhen

《环境科学与工程前沿(英文)》 2008年 第2卷 第2期   页码 157-162 doi: 10.1007/s11783-008-0011-2

摘要: Water environmental planning and management has become essential for guiding the water pollution control activities. Past water pollution control activities have been site specific, with little thought on water quality standard reaching at the watershed scale. Based on the watershed approach, a seven-step methodological framework for water environmental planning and management was developed. The framework was applied to water environmental planning and management of the Lake Qilu watershed in Yunnan Province, China. Results show that the reduction amount of total nitrogen (TN) under the plan is 1,205 tons per year so that the target of environmental capacity can be reached in 2020. Compared with traditional methods, the framework has its prevalence and could be generalized to analogous watersheds.

关键词: Province     environmental planning     management     traditional     watershed approach    

A refined risk explicit interval linear programming approach for optimal watershed load reduction with

Pingjian YANG,Feifei DONG,Yong LIU,Rui ZOU,Xing CHEN,Huaicheng GUO

《环境科学与工程前沿(英文)》 2016年 第10卷 第1期   页码 129-140 doi: 10.1007/s11783-014-0683-8

摘要: To enhance the effectiveness of watershed load reduction decision making, the Risk Explicit Interval Linear Programming (REILP) approach was developed in previous studies to address decision risks and system returns. However, REILP lacks the capability to analyze the tradeoff between risks in the objective function and constraints. Therefore, a refined REILP model is proposed in this study to further enhance the decision support capability of the REILP approach for optimal watershed load reduction. By introducing a tradeoff factor ( ) into the total risk function, the refined REILP can lead to different compromises between risks associated with the objective functions and the constraints. The proposed model was illustrated using a case study that deals with uncertainty-based optimal load reduction decision making for Lake Qionghai Watershed, China. A risk tradeoff curve with different values of was presented to decision makers as a more flexible platform to support decision formulation. The results of the standard and refined REILP model were compared under 11 aspiration levels. The results demonstrate that, by applying the refined REILP, it is possible to obtain solutions that preserve the same constraint risk as that in the standard REILP but with lower objective risk, which can provide more effective guidance for decision makers.

关键词: refined risk explicit interval linear programming     decision making     objective-constraint uncertainty tradeoff     aspiration level     Lake Qionghai Watershed    

标题 作者 时间 类型 操作

Phenanthrene sorption to environmental black carbon in sediments from the Song-Liao watershed (China)

Jinghuan ZHANG, Mengchang HE, Chunye LIN, Ke SUN, Bin MEN, John L. ZHOU,

期刊论文

Synthesis and anticancer activity of (+)-nopinone-based 2-amino-3-cyanopyridines

Shengliang LIAO,Shibin SHANG,Minggui SHEN,Xiaoping RAO,Hongyan SI,Jie SONG,Zhanqian SONG

期刊论文

Urban watershed management under rapid urbanization

Pengfei DU, Haifeng JIA, Shaw L. YU

期刊论文

ATTRIBUTES UNDER DIFFERENT AGROECOSYSTEMS AND ITS IMPLICATIONS FOR AGRICULTURE IN THE CHOKE MOUNTAIN WATERSHED

期刊论文

Climate change and sandy land development in Qinghai Lake Watershed, China

SUN Yongliang, LI Xiaoyan, LIU Lianyou, XU Heye, ZHANG Dengshan

期刊论文

System engineering for water pollution control at the watershed level in China

Wei MENG,

期刊论文

流域水生态承载力理论与优化调控模型方法

彭文启

期刊论文

流域生态学及其应用

杨志峰

期刊论文

An approach to calculating allowable watershed pollutant loads

Yu GUO, Haifeng JIA

期刊论文

Clinical characteristics and risk factors for mortality in cancer patients with COVID-19

Junnan Liang, Guannan Jin, Tongtong Liu, Jingyuan Wen, Ganxun Li, Lin Chen, Wei Wang, Yuwei Wang, Wei Liao, Jia Song, Zeyang Ding, Xiao-ping Chen, Bixiang Zhang

期刊论文

利用太赫兹时域光谱法和微腔器件检测样品:综述

Lin CHEN, Deng-gao LIAO, Xu-guang GUO, Jia-yu ZHAO, Yi-ming ZHU, Song-lin ZHUANG

期刊论文

River Chief System (RCS): An experiment on cross-sectoral coordination of watershed governance

Longfei Wang, Jiaxin Tong, Yi Li

期刊论文

Control division of agricultural non-point source pollution at medium-sized watershed scale in Southeast

HUANG Jinliang, HONG Huasheng, ZHANG Luoping

期刊论文

Water environmental planning and management at the watershed scale: A case study of Lake Qilu, China

HUANG Kai, GUO Huaicheng, LIU Yong, ZHOU Feng, YU Yajuan, WANG Zhen

期刊论文

A refined risk explicit interval linear programming approach for optimal watershed load reduction with

Pingjian YANG,Feifei DONG,Yong LIU,Rui ZOU,Xing CHEN,Huaicheng GUO

期刊论文