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冰水的循環
程鎔時,鄧澧儒
高分子学报 , 1957,
Abstract: 在实驗工作中例如蒸餾溶劑時,常用冷水(自來水)的循環以達到冷却的目的。某些工作要求冷水有比較低的並且恆定的溫度,在可以控制的速率下作長時間的循環;但是自來水的溫度,尤其在夏天,往往嫌過高而且變化很大,不能满足要求。在本实驗室里,用了一種非常简便的使冰水(0℃)作长時間循環的設備,速率能調节並保持恆定,在許多情况下都可以滿意地使用。
循经感传和循经肌电反应
朱兵,荣培晶,李宇清,贲卉,徐卫东,高昕妍
中国科学 生命科学 , 2001,
Abstract: 应用电生理技术证明针刺引起循经感传现象的同时伴发有循经肌电发放,循经感传速度和循经肌电步进速度在厘米每秒范围.停止刺激后,循经感传现象首先在远端消失,并逐渐向近端推移,与此相应,肌电信号亦是首先在远端停止.分别采用臂丛神经阻滞和不影响感觉系统的区域性肌肉非动化阻滞法,循经感传和循经肌电信号一同消失,表明这些现象有赖于感觉-运动反射活动的相互作用.
循经感传和循经肌电反应  [PDF]
朱兵,荣培晶,李宇清,贲卉,徐卫东,高昕妍
中国科学 生命科学 , 2001,
Abstract: 应用电生理技术证明针刺引起循经感传现象的同时伴发有循经肌电发放,循经感传速度和循经肌电步进速度在厘米每秒范围.停止刺激后,循经感传现象首先在远端消失,并逐渐向近端推移,与此相应,肌电信号亦是首先在远端停止.分别采用臂丛神经阻滞和不影响感觉系统的区域性肌肉非动化阻滞法,循经感传和循经肌电信号一同消失,表明这些现象有赖于感觉-运动反射活动的相互作用.
Schwertmannite矿物合成方法的优化和表征  [PDF]
孙红福,赵峰华,吴山
矿物岩石 , 2013,
Abstract: 本文对Schwertmannite(斯沃特曼铁矿)矿物的两种非生物合成法――慢速合成法和快速合成法进行了全面的对比研究,并对合成样品的清洗方法进行了优化。慢速合成法和快速合成法在单纯合成Schwertmannite矿物的时间上基本一致。Schwertmannite矿物传统慢速合成方法中对合成样品的透析清洗过程耗时较长,但合成样品的矿物特征峰和红外光谱特性更好,形成的矿物颗粒较大;而Schwertmannite快速合成法中没有对合成样品的清洗步骤,并且合成样品的矿物特征峰强度较弱,合成的矿物颗粒较小。透析法比离心清洗法更适合对合成Schwertmannite样品的清洗,并且采用截留分子量为3500的透析袋能够缩短透析时间20天,大大提高对合成样品的清洗效率。恒温(40℃)干燥会造成合成样品的严重聚集,而冷冻干燥法则能够大大降低合成样品在干燥过程中的聚集程度,通过研磨能够恢复干燥合成矿物原来的颜色和特征。
循因医学初探  [PDF]
何俊余
- , 2016, DOI: 10.13276/j.issn.1674-8913.2016.02.018
Abstract: 循因医学认为包括人体等生命形式在内的万事万物具有共同的物资基础和运动规律——微观粒子与其运动规律;微观粒子的运动变化形成了包括人体和人类社会在内的丰富多彩的宏观世界。循因医学的目的是揭示微观粒子的运动变化与人体生命活动的关系并运用于医疗实践。现阶段循因医学的研究思路之一就是以研究细胞活动为枢纽,在揭示一系列理化过程与细胞活动的关系以及细胞活动与人体生命及社会活动的关系的基础上,揭示一系列理化过程与人体生命活动的关系;通过不断深入研究,最终揭示微观粒子运动与人体生命及社会活动的关系。它能在揭示生命
Mechanism-based medicine (MBM) believes all materials including living organics have the samesubstantial foundation and movement patterns, i.e. micro-particles and its movement patterns. The movement of microparticlesforms human body and other forms of material in our vivid world. Study of MBM aims to reveal the relationshipbetween the movement of micro-particles and life activities and apply it in medical practice. Currently, cellular reactionsand interactions are highlighted in MBM study, which intends to uncover the physicochemical reaction in cellularactions involved in life and social activities, which is to say, to underlie how physicochemical action impacts life andsocial activities. As researches go deeper, the relationships between micro-particles and life and social activities will beuncovered. MBM may clarify the essential property of life and the underlying roles micro-particles play in the micromacroscopicand objective-subjective influences in human society. MBM regards cell as the basic unit of prevention,diagnosis and treatments, which serves the combination of varied medical models
Effects of iron/potassium molar ratio on mass of biogenic Fe(Ⅲ) hydroxysulfate precipitates in the FeSO4-K2SO4-H2O system and their environmental implications
FeSO4-K2SO4-H2O体系中Fe/K摩尔比对生物成因羟基硫酸铁矿物质量的影响及环境意义

BAI Shuangyou,LIANG Jianru,ZHOU Lixiang,
柏双友
,梁剑茹,周立祥

环境科学学报 , 2010,
Abstract: In the FeSO4-K2SO4-H2O biological oxidation system facilitated by Acidithiobacillus ferrooxidans, secondary ferric hydroxysulfate minerals are able to be synthesized including schwertmannite, potassium jarosite, and their mixture. In our system, the initial concentrations of ferrous iron were designed as 20, 40, 80 and 160 mmol·L-1 and the Fe/K molar ratios for each ferrous iron concentration treatment were designed as 3 to 200. The results show that treatment with lower initial Fe2+ levels such as 20 mmol·L-1 or 40 mmol·L-1 only produces a small amount of the precipitate with no more than 0.38 g produced after 72 h of reaction. With the increase of initial Fe2+ and the decrease of Fe/K molar ratios in the solution, the total amount of the precipitate formed by Acidithiobacillus ferrooxidans is greatly increased. For example, 4.48 g of jarosite are precipitated from 250mL of solution when the initial Fe2+ is 160 mmol·L-1and Fe/K is 3. The XRD pattern indicated that the precipitate is gradually transformed to crystallized jarosite from poorly-crystallized schwertmannite, exhibiting a close relationship between the mass produced and the mineral phase. For example, the amount of the precipitates formed as crystalline jarosite is much higher than that as poorly-crystallized schwertmannite. Therefore, the amount of biogenic minerals formed in the biological oxidation system depends, to a great extent, on the initial Fe2+ concentration and Fe/K molar ratio. This phenomenon is of potential significance in the removal of soluble Fe and SO2-4 from acid mine drainage.
Characterization and As (Ⅲ) adsorption properties of schwertmannite synthesized by chemical or biological procedures
生物成因与化学成因施氏矿物的合成、表征及其对As(Ⅲ)的吸附

LI Zheying,LIANG Jianru,BAI Shuangyou,ZHOU Lixiang,
李浙英
,梁剑茹,柏双友,周立祥

环境科学学报 , 2011,
Abstract: An amorphous ferric hydroxysulfate named schwertmannite,as a novel material,has played an important role in transference and passivation of toxic heavy metals. In this study,schwertmannite was synthesized by two different procedures:chemical oxidation of ferrous iron by H2O2 and bacterial oxidation of ferrous iron by resting Acidithiobacillusferrooxidans cells in ferrous sulfate solution. The components,structures and surface areas of the minerals were analyzed and characterized by XRD,SEM,Ic and BET. In ad...
针刺“曲池”穴循经感传的循经表面肌电变化研究  [PDF]
李春日,谷忠悦
重庆医科大学学报 , 2014,
Abstract: 目的:研究针刺“曲池”穴激发的循经感传与循经表面肌电的关系。方法:分别针刺“曲池”穴、经脉非穴、非经非穴,引发循经感传,观察肱桡肌肌电活动的变化,记录肌电振幅和肌电变化维持时间。结果:针刺“曲池”穴,经脉非穴和非经非穴的循经感传阳性率有统计学差异(?字2=28.298,P=0.000),且针刺“曲池”穴和经脉非穴的循经感传阳性率高于非经非穴(?字2=24.783,P=0.000;?字2=19.113,P=0.000);针刺“曲池”穴,经脉非穴和非经非穴的肱桡肌肌电振幅有明显差异(?字2=61.659,P=0.000),且针刺“曲池”穴对肱桡肌肌电振幅高于经脉非穴和非经非穴(P=0.000);针刺“曲池”穴,经脉非穴和非经非穴的肌电变化维持时间有统计学差异(F=129.846,P=0.000),且针刺“曲池”穴的肌电变化维持时间长于经脉非穴和非经非穴,针刺“曲池”穴、经脉非穴、非经非穴均能引发肱桡肌肌电振幅的改变。结论:针刺“曲池”穴循经感传相伴的肱桡肌肌电活动强于经脉非穴和非经非穴,针刺“曲池”穴对肱桡肌表面肌电活动影响具有穴位特异性。
极端酸性环境下形成的施威特曼石(schwertmannite)及其环境学意义  [PDF]
廖岳华,周立祥
矿物岩石 , 2007,
Abstract: 施威特曼石(schwertmannite)是近年来发现存在于含SO4^2-丰富的极端酸性环境下的一种次生羟基硫酸高铁矿物,其结晶度较差,形态特殊,表面基团活性强,对其存在环境中有毒重(类)金属元素的迁移与钝化有重要影响。本文详细地介绍了施威特曼石的形成、组成结构、稳定性能、溶解度及其与重(类)金属元素的相互作用等方面的研究进展,并对其在地下水除砷中的应用前景进行了讨论。
我 国 休 闲 农 业 中 植 物 休 闲 活 动 研 究  [PDF]
张东梅1,张 彦2,吕 良2
北方园艺 , 2010, DOI: 10.11937/bfyy.201017092
Abstract:
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