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煤矸石淋溶污染物传输动力学研究进展
Research Progress in Transport Kinetics of Coal Gangue Leaching Pollutants
 [PDF]

, 安斌, 惠冰, 李艳召, , 海民
Advances in Porous Flow (APF) , 2019, DOI: 10.12677/APF.2019.94004
Abstract:

研究煤矸石中污染物释放传输的动力学行为对污染物的减排监控具有重要的科学意义。本文回顾了近年来煤矸石淋溶污染物传输动力学研究进展。利用这些数学模型可以定量预测煤矸石中污染物对土壤和地下水污染的强度,可为淋溶液污染机理的分析和污染防治措施的提出提供理论依据。
It is of great scientific significance to study the dynamic behavior of pollutant release and transport in coal gangue for pollutant emission reduction monitoring. This paper reviews the research progress of transport kinetics of coal gangue leaching pollutants in recent years. These mathematical models can be used to predict quantitatively the pollution intensity of coal gangue to soil and groundwater, and provide theoretical basis for the analysis of pollution mechanism of leaching solution and the proposal of pollution control measures.

中国人口空间分布变化的收敛性分析
,王远
期刊检索-中国人口科学 , 2005,
Abstract: 文章借鉴区域经济收敛性理论,利用中国各省、自治区、直辖市的人口和区域经济发展水平的数据,运用经济计量学中的横截面回归分析,研究人口空间分布动态变化与经济初始发展水平的关系。研究结果表明,1964-1992年,中国人口空间分布呈现比较弱的条件收敛性;1992-2003年,中国人口空间分布则存在着明显的区域发散现象。
表面修饰对钛酸钡与聚酰亚胺复合材料结构和介电性能的影响
The Influence of Surface Modification on the Structure and Dielectric Properties for Barium Titanate and Polyimide Composites
 [PDF]

志斌, 张邦文, 张奇伟,朝克, 邢瑞
Material Sciences (MS) , 2016, DOI: 10.12677/MS.2016.63017
Abstract:
如何更好的控制相界面来提高介电性能是目前高分子介电复合材料的研究热点之一。本文采用氨基硅烷、油酸和对氨基水杨酸对纳米钛酸钡进行表面修饰,然后通过原位聚合制备了纳米BaTiO3/聚酰亚胺(PI)复合材料。对表面修饰钛酸钡进行了表征,测量了其复合材料的介电性能。研究发现:三种改性剂均能促进BaTiO3在聚酰亚胺中的分散,并且改善复合材料的介电性能。当BT体积分数为15%时,在频率为1K Hz下,复合材料的介电常数达到30,而介电损耗为0.02。
How to well control the phase interfaces to improve dielectric performance is one of the research hotspots in polymer dielectric composites. In this paper, nanometer barium titanate (BT) was modified by amino silane (KH550), oleic acid (OA), and p-aminosalicylic acid (ASA), then their composites with polyimide (PI) were prepared by in-situ polymerization. The modified BT powders were characterized by various techniques, and their composites were tested with respect to the dielectric properties. The results show that these three organic molecules enable the improvement of the dispersity of nanometer BT in PI host, and thus the dielectric properties of the resulting composites. When PI is loaded with 15 vol% nanometer BT, dielectric constant and loss of the composites is 30 and 0.02, respectively.
ADPKD的表观遗传调控、炎症和甲基化的分子机制
The Molecular Mechanisms of Epigenetic Regulation, Inflammation, and Methylation in ADPKD
 [PDF]

,
Advances in Clinical Medicine (ACM) , 2023, DOI: 10.12677/ACM.2023.13112426
Abstract: 常染色体显性多囊肾病(ADPKD)是一种由PKD1和PKD2基因突变引起的遗传性疾病,其特征是肾脏中多个囊肿的进行性生长,最终导致终末期肾病(ESKD),需要肾脏替代治疗。研究表明,疾病的进展是多种因素共同作用的结果。因此,了解分子机制将有助于制定ADPKD治疗的精确治疗策略。表观遗传调节、间质炎症和细胞调控死亡的作用最近成为ADPKD研究的热点。不同的表观遗传调节因子表达与囊肿进展有关的炎症标志物,在囊肿生长之前就可检测到。此外,在人类和PKD动物模型中,炎症细胞(如巨噬细胞和T细胞)的浸润与囊肿生长和肾功能恶化有关。然而,在ADPKD中,细胞死亡是否促进或延迟囊肿生长还没有达成共识。因此,有必要研究PKD基因突变、表观基因组、炎症和细胞死亡之间的交互关系,以理解为什么患者的遗传性PKD基因突变可能导致这些过程的失调,从而增加肾囊肿的进展。
Autosomal dominant polycystic kidney disease (ADPKD) is a genetic disease caused by mutations in the PKD1 and PKD2 genes, characterized by the progressive growth of multiple cysts in the kidney, ultimately leading to end-stage kidney disease (ESKD) and requiring renal replacement therapy. Research has shown that the progression of diseases is the result of multiple factors working to-gether. Therefore, understanding the molecular mechanisms will help develop precise treatment strategies for ADPKD. The role of epigenetic regulation, interstitial inflammation, and cell death regulation has recently become a hot topic in ADPKD research. Inflammatory markers related to the expression of different epigenetic regulatory factors and cyst progression can be detected be-fore cyst growth. In addition, in human and PKD animal models, the infiltration of inflammatory cells (such as macrophages and T cells) is associated with cyst growth and deterioration of renal function. However, there is no consensus on whether cell death promotes or delays cyst growth in ADPKD. Therefore, it is necessary to study the interaction between PKD gene mutations, epige-nomes, inflammation, and cell death in order to understand why genetic PKD gene mutations in pa-tients may lead to dysregulation of these processes, thereby increasing the progression of renal cysts.
发输电联合优化的区域电网日内滚动节能调度策略及社会效益
The Strategy and Social Benefits of Intraday Rolling Energy-Saving Scheduling Using Joint Optimization of Generation and Transmission in China Southern Power Grid
 [PDF]

庆标, 和识之, , 梁志飞, 匡洪辉, 张德亮
Smart Grid (SG) , 2015, DOI: 10.12677/SG.2015.56035
Abstract:
电力工业节能减排是国家“十二五”能源发展战略的重要目标,也是新一轮电改中放开发用电计划必须兼顾的关键因素,进一步挖掘电力生产全过程节能潜力是未来电网面临的挑战性课题。本文针对某区域电网交直流并联运行的特有方式,提出以日内滚动的跨省交易实现高、低能耗能源互补,以交直流潮流优化分配实现输电运行经济性最优,最终实现日内滚动节能调度的发输全过程优化。为了适应大电网快速优化决策的需要,本文进一步设计了发输电联合迭代优化计算流程,并对日内滚动节能调度的经济、节能效益进行了测算,揭示了实施发输电联合优化的日内滚动节能调度的巨大效益空间。
Energy-saving in electricity industry is regarded as one of important strategic targets in “Twelfth Five-Year Plan” for energy. And it is the key issue for deregulation of generation schedule in revo-lution of power market. CSG is facing a challenging topic of mining potential for the whole process of real electric energy production. The intraday rolling optimization strategy under the circumstance of AC/DC hybrid operation mode of regional grid is discussed. This paper proposed a new strategy about high energy-consumption and clean energy replacement as well as optimizing transmission distribution in AC/DC channels. A Joint iterative optimization process was proposed to solute generation and transmission models with a target of minimizing real-time energy consumption increment. The assessment of economic benefits and energy-saving profit based on practical data proved huge potential of intraday rolling energy-saving scheduling using joint optimization of generation and transmission.
浅谈高速公路施工期环境保护监测计划制定
A Brief Talk on Environment Monitoring Plan during Freeway Construction Phase
 [PDF]

张潆元, 张颖, 赵亚丽, , 王艳娇, 陈迪勇
Advances in Environmental Protection (AEP) , 2020, DOI: 10.12677/AEP.2020.105078
Abstract:

通过对高速公路施工期环境监测特点进行分析,阐述了高速公路施工期的主要监测内容包含噪声、地表水、地下水、环境空气等环境要素,并对各环节要素的监测计划制定要点展开分析,以期为高速公路施工期环境保护提供技术支撑。
Based on the analysis of the characteristics of environmental monitoring in the freeway construc-tion phase, this paper expounds the main monitoring contents in the construction period of freeway, including noise, surface water, groundwater, ambient air and so on. And then it analyzes the key points of the monitoring plan of each element, in order to provide technical support for the environmental protection in the freeway construction phase.

黔北德江县喀斯特地区水资源——开发可能性的探讨
张耀华、房金福
资源科学 , 1985,
Abstract:
燕山地区喀喇沁变质核杂岩的构造特征与发育机制
少泽,,赵田,利宏,刘备
科学通报 , 2014, DOI: 10.1360/N972014-00100
Abstract: 通过详细的野外观察与岩浆岩锆石定年,重新分析了燕山构造带北侧喀喇沁变质核杂岩的变形特征与演化历史,认为其经历了晚侏罗世与早白垩世两期伸展变形,而不是过去认为的仅发育于早白垩世.该变质核杂岩起源于晚侏罗世(156~150Ma)NE-SW向拉伸中,最初发育了向北东缓倾、上盘向北东运动的拆离韧性剪切带,其下盘也卷入了同期韧性变形,并有岩浆活动与上叠盆地伴生.在随后的149~145Ma期间仅发生了有限的均衡隆升.早白垩世时(141~100Ma),区内拉伸方向转变为NW-SE向,沿着变质核杂岩两侧发育了2条NE-SW走向、倾向相背的大型脆性正断层.这2条正断层外侧的上盘控制发育了早白垩世半地堑式盆地,而其间共同的下盘发生了地垒式隆升而成为伸展穹窿,使得晚侏罗世韧性伸展构造剥露到地壳浅部.在早白垩世伸展隆升中,核部杂岩由早期至晚期先后叠加了局部的韧性变形带与脆性正断层,显示为应变局限化的特征.对该变质核杂岩演化历史与发育机制的重新厘定,一方面为燕山构造带发生过晚侏罗世伸展活动与克拉通破坏提供了构造证据,另一方面也表明该带早白垩世强烈伸展活动普遍存在,代表了克拉通的峰期破坏.
C60氮乙酰胺的合成及其光限幅效应
,朱鹤孙,
科学通报 , 1999,
Abstract: 由叠氮乙酰胺与C60反应,合成并初步表征了C60氮乙酰胺,分析了它的反应机理,经过一个三唑啉中间体结构形成最终产物,通过量化计算确定了氮丙啶闭环结构为热力学稳定结构;应用倍频Nd∶YAG脉冲激光测试了它的光限幅性能,确定其光限幅机制为反饱和吸收,在激光波长为532nm时,对皮秒脉冲的限幅效果优于对纳秒脉冲,并且对长波长(707nm)激光的限幅效果要优于C60.
微细导电粉体碘化亚铜在乙二醇中的分散性研究
,杨胜,,江建明
功能高分子学报 , 2004,
Abstract: 研究了分散方法(球磨、高速剪切、起声波)、分散剂的种类(十二烷基苯磺酸、聚乙二醇、硅烷偶联剂、钛酸酯偶联剂)、分散剂的含量及分散时间对微细导电粉体碘化亚铜在乙二醇中分散性的影响。用SEM对其分散情况进行表征。并对其分散机理进行探讨及研究。结果表明。当采用球磨分散方法、分散荆为钛酸酯偶联剂。含量为1%。分散时间为8h可制得分散性良好的碘化亚铜/乙二醇体系。
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