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南四湖及主要入湖河流表层沉积物对磷酸盐的吸附特征
安文超,李小明
环境科学 , 2008,
Abstract: 研究了南四湖及其主要河流入湖口18个表层沉积物对磷的吸附能力、吸附动力学及其吸附等温线，并对湖区沉积物对磷吸附特征及其理化特征之间的关系进行了探讨.结果表明，对于处于不同营养水平的沉积物，对磷酸盐的吸附具有一致的特征.在前10h沉积物对磷酸盐的吸附量基本达到或超过平衡吸附量的80%，并且在0～1.0h内吸附反应迅速.在本研究条件下，表层沉积物的CEPC的变化范围为0.010～0.157　mg·L-1，Qmax的变化范围是86.74～118.32mg·kg-1，TQmax的变化范围是99.97～281.11mg·kg-1.CEPC、NAP、M、Qmax和TQmax与Ads-P都具有显著的正相关关系，沉积物Ads-P含量可以作为指导南四湖水体污染程度的一项指标.M与TQmax之间具有显著的正相关性，吸附效率不仅体现的是对外来磷的吸附效率，还应当包含对本身释放磷的再吸附的效率.对于南四湖沉积物TQmax、NAP和Qmax起到同样的贡献.沉积物的NAP与CEPC之间呈显著正相关性，总的趋势就是，当上覆水中磷含量相等时，具有高的NAP的沉积物易于向上覆水体释磷，反之具有较低NAP的沉积物易从水中吸附磷.
南四湖及主要入湖河流表层沉积物对磷酸盐的吸附特征
安文超,李小明
环境科学 , 2008,
Abstract: 研究了南四湖及其主要河流入湖口18个表层沉积物对磷的吸附能力、吸附动力学及其吸附等温线，并对湖区沉积物对磷吸附特征及其理化特征之间的关系进行了探讨.结果表明，对于处于不同营养水平的沉积物，对磷酸盐的吸附具有一致的特征.在前10 h沉积物对磷酸盐的吸附量基本达到或超过平衡吸附量的80%，并且在0～1.0 h内吸附反应迅速.在本研究条件下，表层沉积物的CEPC的变化范围为0.010～0.157 　mg·L-1，Qmax的变化范围是86.74～118.32 mg·kg-1，TQmax的变化范围是99.97～281.11 mg·kg-1.CEPC、NAP、M、Qmax和TQmax与Ads-P都具有显著的正相关关系，沉积物Ads-P含量可以作为指导南四湖水体污染程度的一项指标.M与TQmax之间具有显著的正相关性，吸附效率不仅体现的是对外来磷的吸附效率，还应当包含对本身释放磷的再吸附的效率.对于南四湖沉积物TQmax、NAP和Qmax起到同样的贡献.沉积物的NAP与CEPC之间呈显著正相关性，总的趋势就是，当上覆水中磷含量相等时，具有高的NAP的沉积物易于向上覆水体释磷，反之具有较低NAP的沉积物易从水中吸附磷
从铁矿石谈判看中国铁矿资源可持续发展
邱锦安,吕文超
矿床地质 , 2010,
Abstract:
赣南地区寒武纪沉积岩地球化学特征及其地质意义
The Geochemical Characteristics and Their Geological Significance of Sedimentary Rocks from Cambrian in Gannan Area  [PDF]
徐文坦, 马虎超, 龚安州, 杨圣都, 黎家强, 周博文
Advances in Geosciences (AG) , 2019, DOI: 10.12677/AG.2019.96060
Abstract:
赣南地区是华南东段的重要组成部分，寒武纪时期沉积了一套巨厚的复理石建造，它们都具有高SiO2(66.07%~83.85%)，相对较高的Al2O3(8.81%~22.56%)、K2O(1.27%~6.72%)和TFeO+MgO(2.17%~9.18%)含量，相对较低的Na2O和CaO含量。微量元素和稀土元素显示相容元素和轻稀土元素相对富集，与典型上地壳元素特征相似。稀土元素球粒陨石标准化分布图显示稀土元素具有明显右倾性，具有明显的Eu负异常和弱Ce负异常，与PASS和上地壳特征相似。岩石地球化学特征结合寒武纪碎屑锆石年代学和Hf同位素特征显示研究区物源主要来自华夏地块南部上地壳长英质源区，少量基性火山岩区和古老地壳再循环的产物。研究区寒武纪时沉积物源没有发生明显变化。研究区早古生代沉积构造背景为被动大陆边缘。
Gannan area is an important part of the eastern part of South China. During the Cambrian, a thick set of flysch formation was deposited. The geochemical characteristics of the sedimentary rocks indicate that they all have high SiO2 (66.07~83.85 wt%), relatively high Al2O3 (8.81~22.56 wt%), K2O (1.27~6.72 wt%) and TFeO + MgO (2.17~9.18 wt%) content, relatively low Na2O and CaO content. Trace elements and rare earth elements show relatively rich enrichment of compatible elements and light rare earth elements, similar to those of typical upper crust elements. The normalized distribution of rare earth element chondrite shows that the rare earth elements have obvious right-tilt property, and have obvious Eu negative anomaly and weak Ce negative anomaly, similar to PASS and upper crust. The geochemical characteristics of sedimentary rocks combined with the zircon geochronology and Hf isotope characteristics in the study area indicate that the provenance is mainly from the upper crust of southern part of the Cathaysia block, a small amount of basic volcanic rock areas and ancient crust recirculation. The provenance of the study area did not change significantly in Cambrian. The tectonic setting of the Early Paleozoic is a passive continental marginal environment.
卓越农林人才培养改革与实践——以广东海洋大学滨海农业学院为例
Reform and Practice of Cultivating Outstanding Agricultural and Forestry Talents—Taking College of Coastal Agricultural Sciences of Guangdong Ocean University as an Example  [PDF]
尹福泉, 卢艳丽, 安立龙, 赵志辉, 周光现, 刘文超, 高振华
Creative Education Studies (CES) , 2021, DOI: 10.12677/CES.2021.91004
Abstract: 广东海洋大学滨海农业学院有动物科学、动物医学、农学、植物保护、园艺、林学等多个涉农专业。卓越农林人才培养计划以服务现代农牧产业发展和学生自身发展为出发点，以构建适应产业需求和学生成长成才需求为特点的卓越农林人才培养体系为目标，实施在PBL理念指导下以问题为导向的理论教学模式、在CDIO理念指导下以目标任务为导向的实践教学模式，着力培养学生专业发展能力、自主学习能力、综合应用能力、表达与交流能力、信息处理能力和创新创业能力(简称“六能力”)，以培养学生“六能力”为宗旨，实现学生能力培养和促进产业发展的有机结合。
There are some agriculture related specialties in Coastal Agricultural Sciences College of Guang-dong Ocean University, such as animal science, animal medicine, agronomy, plant protection, horticulture, forestry, etc. The excellent agriculture and forestry talents training plan takes serving the development of modern agriculture and animal husbandry industry and students’ self-development as the starting point, and takes the construction of excellent agriculture and forestry talents training system which adapts to the needs of industry and students’ growth and development as the goal. It implements the problem-based theory teaching mode under the guidance of PBL concept and the practice teaching mode guided by CDIO concept. Efforts should be made to cultivate students’ professional development ability, autonomous learning ability, comprehensive application ability, expression and communication ability, information processing ability and innovation and entrepreneurship ability (hereinafter referred to as “six abilities”) to realize the organic combination of students’ ability training and industrial development.
南四湖及主要入湖河流河口区表层沉积物磷的形态与分布特征研究
安文超,张书武,和慧,李小明
环境科学学报 , 2012,
Abstract: 利用化学连续提取法对南四湖湖区及主要入湖河流河口区的表层沉积物样品中的磷的化学形态进行了提取.分析结果表明:南阳湖、独山湖和位于湖西的入湖河流沉积物中总磷含量较高,变化范围为571.67~1113.55mg·kg-1;不同形态磷的含量差异较大,排序为:钙磷(Ca-P)＞有机磷(OP)＞弱吸附态磷(Ads-P)＞铁磷(Fe-P)＞铝磷(Al-P);TP与Ca-P、Ads-P、OP之间存在正相关关系,相关系数r分别为0.85(p＜0.01)、0.85(p＜0.01)和0.63(p＜0.01);Ads-P与Ca-P、Ads-P与OP之间也存在正相关关系,r分别为0.74(p＜0.01)和0.60(p＜0.05);Fe-P与Ca-P之间存在负相关关系(r=-0.62,p＜0.05);BAP只与OP之间显著正相关(r=0.82,p＜0.01),由OP可以粗略地估算出沉积物中潜在的可释放磷,即有效的内源磷负荷;南四湖沉积物中有机磷的含量很大程度上取决于有机质含量的多少.
大颗粒辉钼矿Re-Os同位素失耦现象及187Os迁移模式研究
李超,屈文俊,杜安道
矿床地质 , 2009,
Abstract: 对采自西华山钨矿的大颗粒辉钼矿样品的不同部位进行了取样，并对其年龄分别进行精确厘定，得到了不同的Re-Os模式年龄值，验证了失耦现象的存在。从原理上对失耦现象及其成因进行了解释，并在前人成果的基础上，探索性地提出了187Os可能的迁移模型。取样方式的不同会对辉钼矿的模式年龄产生很大影响，因此，在实际应用中一定要严格遵循“多取样，细磨碎”的原则，这对于能获得科学真实的与地质背景相符的Re-Os同位素地质年龄，从而深入探讨矿床成矿作用具有重要意义。
社会支持对震后青少年创伤后应激障碍和创伤后成长的影响:自我效能感的中介作用
The Relationship between Social Support, Posttraumatic Stress Disorder and Posttraumatic Growth among Adolescents after Wenchuan Earthquake: Understanding the Role of Self-efficacy
安媛媛,苑广哲,伍新春,王文超
- , 2018, DOI: 10.16187/j.cnki.issn1001-4918.2018.01.12
Abstract: 本研究采用创伤暴露问卷、社会支持问卷、自我效能感量表、创伤后应激障碍症状核查表和创伤后成长问卷，在汶川地震8.5年后对地震极重灾区的1185名中学生进行调查，考察社会支持对创伤后应激障碍（PTSD）和创伤后成长（PTG）的影响，并检验自我效能感在其中的中介作用。结果发现：在控制创伤暴露程度、性别和年龄等变量后，社会支持不仅可以直接负向预测PTSD、正向预测PTG，也可以通过自我效能感的中介作用负向预测PTSD、正向预测PTG。这表明，自我效能感在社会支持与PTSD、社会支持与PTG的关系中都具有部分中介效应。
To examine the relationship among adopting traumatic exposure questionnaire, social support, self-efficacy, posttraumatic stress disorder (PTSD) and posttraumatic growth (PTG), this study investigates 1185 adolescents at 8.5 years after Wenchuan earthquake by using social support scale, the self-efficacy scale, the modified DSM-5 PTSD checklist and posttraumatic growth inventory. The structural equation model was used to examine the relationship, wherein the traumatic exposure would be controlled because its importance. The results found that after controlling for traumatic exposure, social support has direct and negative effect on PTSD, and it can also exert indirect and negative effect on PTSD via self-efficacy. In addition, social support has direct and positive effect on PTG, and it may also positively affect PTG via self-efficacy.
群智感知中采用节点社会属性的亲密度量化方法
Intimacy Relationship Quantification Method among Nodes Based on Social Attributes in Crowd Sensing
张文东,桂小林,蔡宁超,安健
- , 2017, DOI: 10.7652/xjtuxb201706012
Abstract: 针对群智感知中节点社会关系计算存在的层次关系划分不清、关联因子描述粗糙等问题,提出一种采用社会属性的亲密度量化方法。该方法通过分析影响节点社会关系的多维要素,将节点属性因子划分为静态和动态两个维度。通过构造多维语义分级树和空间索引编码,对节点静态属性进行挖掘和形式化表示。同时,引入交互信息熵,对社会关系的不对称性进行分析和比较,以提高亲密度量化方法的客观性。基于层次分析法实现节点动态属性的二级评判和有效聚合,并通过节点融合度对亲密关系进行二次修正。实验结果表明:与已有方法相比,采用社会属性的亲密度量化方法预测准确率提高了14.67％,该方法能够有效降低群智感知中移动节点的误判概率,提高网络社团识别准确率,为候选服务节点集的选择提供有效依据。
A new method, called social？？based nodes intimacy quantification method (SNIQ), is proposed to solve the problem of unclear hierarchy and rough associated attribute description in nodes social relationships quantification. A formal representation of social attributes is presented by means of static semantic hierarchy tree and spatial index coding to analyze multi？？dimension factors that influence nodes social relationship. The asymmetry of social relations of nodes is reasonably evaluated by introducing the interactive information entropy. Furthermore, analytic hierarchy process (AHP) is used to achieve two？？level judgment and effective aggregation of node dynamic attributes, and a fusion degree of nodes is introduced to dynamically modify intimacy relationships of nodes. Experimental results show that SNIQ is better than the traditional algorithms in accuracy and recall rate in the process of getting nodes intimacy relationships, and effectively improves the success rate of nodes selection in crowd sensing. Comparisons with the existing algorithms show that the proposed SNIQ achieves 14.67% improvement in prediction accuracy
Ca2+信号途径参与稻瘟病菌分生孢子萌发及附着胞形成的调控
王立安,王源超,李昌文,郑小波
菌物学报 , 2003,
Abstract: 为了确定Ca2+信号途径是否参与、在哪一时期参与稻瘟病菌分生孢子萌发及附着胞形成过程的调控,用四种可从不同位点阻断Ca2+信号途径的抑制剂分别处理分生孢子,观察抑制剂对孢子萌发及附着胞形成过程的抑制作用。结果表明:Ca2+螯合剂EGTA、Ca2+通道抑制剂Verapamil、抑制磷脂酶C活性的抑制剂U-73122、影响钙调素与钙调素依赖蛋白激酶作用位点的抑制剂KN-93,随着浓度的增加,对孢子萌发和附着胞形成过程的抑制作用明显增强;同一浓度下,抑制剂对附着胞形成过程的抑制作用大于孢子萌发过程;抑制剂影响孢子萌发和附着胞形成过程在萌发早期(1~4h)最有效;在完全被抑制、不能萌发的孢子内出现了许多颗粒状囊泡;抑制剂可使附着胞形态明显变小甚至不能形成。以上结果表明钙信号途径参与了稻瘟病菌孢子萌发及疏水条件下附着胞形成过程的调控。
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