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Search Results: 1 - 10 of 88206 matches for " 叶梅龙 "
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电感耦合等离子体原子发射光谱法测定铌铁中的三元素
Determine Three Elements in Ferroniobium with ICP-AES Method
 [PDF]

孙秀萍, 张瑜, 吴庆, 余海, , 皮宁宁
Advances in Analytical Chemistry (AAC) , 2014, DOI: 10.12677/AAC.2014.42004
Abstract:

研究了用电感耦合等离子体原子发射光谱法(ICP-AES)同时测定铌铁中三元素铜、铝、磷的分析方法。试样以硝酸、氢氟酸分解,加入硫酸加热至冒烟,再加入柠檬酸溶液,定容。然后在最佳谱线和最佳工作条件下测定。试验结果表明,该方法简便、快速、灵敏,检测限在0.004%至0.009%之间,线性范围较宽,相对标准偏差均较小,回收率在96%~104%之间。
A method for the determination of three elements—copper, aluminum and phosphorus in ferroniobium by inductively coupled plasma atomic emission spectrometry (ICP-AES) was studied. In the experiment, the sample is decomposed by nitric acid and hydrofluoric acid. Sulphuric acid was added to heat for smoking. Then citric acid was added. After constant volume, the sample was determined under optimal spectral lines and proper working conditions. The determined result shows that this method is simple, rapid and sensitive, with the detection limit between 0.004% and 0.009%, and the linear range is wide. The deviations were less than that of the standard deviations. Recovery rate was between 96% - 104%.

黑蔓对免疫复合物性炎症的影响
,万建盛,,高峰
中国中药杂志 , 1983,
Abstract: <正>黑蔓TripterygiumrigelliSpragueetTake系卫矛科雷公藤属植物,又名东北雷公藤。近年来,同属植物(黄藤、昆明山海棠)的生物活性引起医药界的重视,其中最受注目的是对免疫复合物性疾病如类风湿性关节炎,肾炎等有较好的治疗作用。但关于黑蔓是否具有抗免疫复合物性炎症作用至今未见报导。本文以动物逆转性被动Arthus反应(RPA)作为免疫复合物性炎
野刺梨果渣超微粉加工技术研究
Processing technology of ultrafine powder from wild roxburgh slag

任亚,袁春,淑瑶,
- , 2017,
Abstract: 【目的】研究野刺梨果渣的加工技术,为野刺梨果渣的开发利用提供参考。【方法】以野刺梨果渣为主料、抗结剂为辅料,制备野刺梨果渣超微粉;在单因素试验基础上确定粉碎温度、粉碎时间、抗结剂种类及抗结剂添加量为影响因素,以休止角、滑角、结块量、出粉率为评价粉体品质的指标,探究野刺梨果渣超微粉的加工工艺。【结果】优化确定的野刺梨果渣粉碎加工的条件为:-20 ℃下超微粉碎20 min,选定微晶纤维素为抗结剂,其添加量为30 g/kg,在此条件下获得的超微粉流动性好、结块少且出粉率高。成品超微粉不仅物理性状优越,营养素的保留和释放量也明显提高,测得其黄酮及多酚溶出量分别为0.74和1.90 mg/g,比普通粗粉分别提高24.5%和135.0%。【结论】野刺梨果渣超微粉加工工艺为野刺梨生产废物的利用提供了技术支持。
【Objective】The processing technology for ultrafine power was studied to provide a reference for the development and utilization of wild roxburgh slag.【Method】Using wild roxburgh slag as raw material and anti-agglomeration regent as auxiliary materials,ultrafine powder was made.On the basis of single factor test,influencing factors including grinding temperature,grinding time as well as type and dosage of anti-agglomeration reagent were determined using index of angle of repose,slip angle,amount of agglomeration and flour extraction rate as indexes.【Result】The obtained optimal conditions to produce wild roxburgh slag ultrafine powder were:ultrafine grinding at -20 ℃ for 20 minutes,and microcrystalline cellulose as anti-agglomerate reagent at the amount 30 g/kg.Under the optimal conditions,the obtained wild roxburgh slag ultrafine powder had good mobility,less agglomeration,and high yield.The retention and release of nutrients were also increased.The dissolubility values of flavonoids and polyphenols were 0.74 and 1.90 mg/g,which were 24.5% and 135.0% higher than common powder,respectively.【Conclusion】Processing technology of wild roxburgh slag ultrafine powder would provide technical support for reusing waste of wild roxburgh.
芜菁ogura胞质不育系的选育初报
姚祥坦,纨芝,崔辉,张明,曹家树
园艺学报 , 2004,
Abstract:
火绒草对动物变态反应性炎症的影响
,,尹航,朱宇明,田建明,高峰
中国中药杂志 , 1994,
Abstract: 火绒草提取物(ip50~100mg/kg)对动物逆转性Arthus反应,抗鼠血清兔血清引起的足肿胀、溶酶体所致的出血斑、毛细血管返透性以及羧甲基纤维索引起的白细胞移行均有明显的抑制作用。此作用并不依赖于肾上腺和溶酶体膜的完整存在。
镁和β-胡萝卜素对2型糖尿病大鼠糖脂代谢影响
江咏梅,马爱国,孙永,李学,衣学,姚民秀
中国公共卫生 , 2009, DOI: 10.11847/zgggws2009-25-12-11
Abstract: ?目的通过补充镁、β-胡萝卜素及其联合制剂,探讨其对实验2型糖尿病大鼠糖脂代谢的影响及其作用机制.方法利用链脲佐菌素(STZ)建立2型糖尿病大鼠动物模型,将其随机分为糖尿病模型组、镁组、β-胡萝卜素组及镁+β-胡萝卜素组、正常对照组.实验期8周,检测大鼠血糖(Glu)、甘油三酯(TG)、高密度脂蛋白(HDL)、低密度脂蛋白(LDL)含量,并计算胰岛素抵抗指数(HOMA-IR).结果8周干预后,镁组、β-胡萝卜素组以及镁+β-胡萝卜素组血糖值分别为(7.57±5.61),(7.85±4.11)和(6.09±3.43),较模型组(13.28±4.11)明显降低(P<0.05);镁+β-胡萝卜素组TG、LDL分别为(1.63±0.64),(0.29±0.08),较模型组(2.65±0.67),(0.45±0.16)明显降低(P<0.05);HDL(11.1±0.31)较模型组(0.81±0.10)明显升高(P<0.05);HOMA-IR与模型组(11.94±2.96)比较,镁组(6.64±4.54)明显降低(P<0.05),镁+β-胡萝卜素组(4.95±3.36)明显降低(P<0.01).结论镁可以明显降低糖尿病大鼠的血糖、改善胰岛素抵抗;β-胡萝卜素可以明显降低血糖;镁和β-胡萝卜素联合补充可以明显改善糖脂代谢、减轻胰岛素抵抗.
小麦秸秆与菇渣混合基质对辣椒秧苗质量的影响
韩春,李春,少平,陈 华,欧 俊
北方园艺 , 2010, DOI: 10.11937/bfyy.201021008
Abstract:
不同栽培模式下生姜品质及经济效益的比较研究
韩春,李春,少平,潘开文,吴宁,李伟
北方园艺 , 2013,
Abstract: 以四川地方品种犍为黄口姜为试材,研究比较了不同栽培模式对生姜内在品质及经济效益的影响。结果表明生姜与大豆间作(处理1)和生姜与四季葱间作(处理2)能有效提高生姜块茎中维生素C含量,分别较单作生姜显著提高了3.29%和4.05%、处理2显著提高了可溶性糖8.24%、姜辣素4.51%和蛋白质等有益物质的含量,降低了硝酸盐有害物质的含量,其中处理1显著降低了14.00%,改善了姜块的外观和内在品质。并且,生姜与大豆间作的纯收入和产投比最高,分别较生姜单作提高了24.80%和8.80%。
不同栽培模式对生姜形态指标和产量的影响
韩春,李春,少平,潘开文,吴宁,李伟
北方园艺 , 2013,
Abstract: 以生姜为试材,研究了不同栽培模式对生姜形态指标和根茎产量的影响。结果表明不同栽培模式不同程度地影响了收获期生姜的株高、分枝数和根茎产量;其中处理2(生姜与大豆间作)显著地促进了生姜的分枝(10.5%),同时处理2、处理3(生姜与大蒜间作)和处理4(生姜与大豆、四季葱混作)也促进了生姜的生长(株高分别增加了15.0%、11.4%和14.0%),并且这3个处理提高了生姜的产量。?
生姜水浸液对生姜幼苗形态和光合指标的影响
韩春,李春,少平,潘开文,吴宁,李伟
北方园艺 , 2013,
Abstract: 以生姜为试材,研究了不同部位、不同浓度生姜水浸液对生姜幼苗形态指标和光合作用指标的影响。结果表明生姜茎和叶不同浓度的水浸液均显著抑制了生姜幼苗的株高、每株叶片数和叶面积,其抑制程度随着水浸液浓度的增加而有所增强,而对生姜幼苗每株分枝数的影响差异不显著。在同一浓度下,茎水浸液对生姜幼苗的形态指标均显示出最强的抑制作用,叶水浸液次之,根茎水浸液最弱。同时,3种水浸液均随浓度的增加降低了生姜幼苗的光合参数(包括胞间CO2浓度、气孔导度、蒸腾速率及净光合速率)。生姜幼苗形态指标与光合参数的相关分析结果表明,除了胞间CO2浓度与每株叶片数呈显著正相关(相关系数为0.407)、与每株分枝数呈正相关但不显著外,生姜幼苗叶片各光合参数与所测定的形态指标均呈极显著正相关。
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