中国科学院机构知识库网格系统: 检索

10-18世纪美国大陆土地垦殖数据集的研发 期刊论文 OAI收割
全球变化数据学报, 2022, 卷号: 6, 期号: 2, 页码: 298
作者: 赵彩杉; 何凡能; 杨帆; 王亚非

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Historical land use land reclamation continental United States 10th to 18th centuries 历史土地利用土地垦殖美国大陆 10-18世纪

Constraining the X-Ray-Infrared Spectral Index of Second-timescale Flares from SGR 1935+2154 with Palomar Gattini-IR 期刊论文 OAI收割
The Astrophysical Journal, 2020, 卷号: 901, 页码: L7
作者: HXMT

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Radio transient sources Magnetars Soft gamma-ray repeaters 2008 992 1471 Astrophysics - High Energy Astrophysical Phenomena Astrophysics - Instrumentation and Methods for Astrophysics Abstract: The Galactic magnetar SGR 1935+2154 has been reported to produce the first example of a bright millisecond-duration radio burst (FRB 200428) similar to the cosmological population of fast radio bursts (FRBs). The detection of a coincident bright X-ray burst represents the first observed multiwavelength counterpart of an FRB. However, the search for similar emission at optical wavelengths has been hampered by the high inferred extinction on the line of sight. Here, we present results from the first search for second-timescale emission from the source at near-infrared (NIR) wavelengths using the Palomar Gattini-IR observing system in the J band, enabled by a novel detector readout mode that allows short exposure times of ?0.84 s with 99.9% observing efficiency. With a total observing time of ?12 hr (?47,728 images) during its 2020 outburst, we place median 3Ҡlimits on the second-timescale NIR fluence of ?18 Jy ms (13.1 AB mag). The corresponding extinction-corrected limit is ?125 Jy ms for an estimated extinction of A_J = 2.0 mag. Our observations were sensitive enough to easily detect an NIR counterpart of FRB 200428 if the NIR emission falls on the same power law as observed across its radio to X-ray spectrum. We report nondetection limits from epochs of four simultaneous X-ray bursts detected by the Insight-HXMT and NuSTAR telescopes during our observations. These limits provide the most stringent constraints to date on fluence of flares at 10¹⁴ Hz, and constrain the fluence ratio of the NIR emission to coincident X-ray bursts to R_NIR ? 0.025 (fluence index ?0.35).

Susceptibility loci for heroin and cocaine addiction in the serotonergic and adrenergic pathways in populations of different ancestry 期刊论文 OAI收割
PHARMACOGENOMICS, 2015, 卷号: 16, 期号: 12, 页码: 1329-1342
作者: Levran, Orna; Peles, Einat; Randesi, Matthew; da Rosa, Joel Correa; Ott, Jurg

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ADRA1A adrenergic pathway African-American association study cocaine addiction genetic variants heroin addiction HTR3A HTR3B S100A10 serotonergic pathway SLC18A2 SLC6A4 stress

利用孤雌生殖进行裙带菜种苗培育的方法 专利 OAI收割
专利类型: 发明, 专利号: CN201210339467.X, 申请日期: 2014-03-26, 公开日期: 2014-03-26
单体锋; 逄少军; 高素芹

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一种利用孤雌生殖进行裙带菜种苗培育的方法 2）将上述孤雌生殖成熟的孢子体的孢子叶置于海水中释放得到游孢子 3）上述附着游孢子的苗帘在光强50?80μmol?photons?m?2s?1 4）将雄配子体与附着在苗帘上的雌配子在50?80μmol?photonsm?2s?1光强下完成发育和受精过程待幼孢子体达到200?500μm左右其特征在于：1）将雌性配子体进行诱导培养至幼孢子体达到1mm以上转入充气培养条件下待释放得到游孢子的海水颜色为黄褐色后水温18－22℃ 转到海上栽培完成孤雌生殖孢子体的生活史将游孢子附着在苗帘上光周期12h白天：12h黑夜条件下培养13?15d 即实现裙带菜的培育。形成孤雌生殖成熟的孢子体而后将苗帘放入新鲜海水中待萌发的游孢子全部发育成雌配子体并充分生长后降低光强至2?10μmol?photons?m?2s?1 延缓配子体的发育使其度过高水温的夏季

Research Progress of a New Type of potential anti-cancer drugs:ent-kaurane diterpenoids 期刊论文 OAI收割
中国化学会第9届天然有机化学学术会议论文集, 2012, 页码: 1
普建新

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potential:9813 Progress:1771 Research:638 drugs:325 cancer:183 family:19 throughout:18 interesting:17 years:15 genus:14 Labiatae:13 found:12 diterpenoid:12 morethan:12 world:10 literature:9 isolated:7 research:7 different:3 mainly:3

废热锅炉换热管爆裂分析 会议论文 OAI收割
2011年全国失效分析学术会议, 西安, 2011-09-26
董晨; 付长明; 屈伸; 田继丰

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OCr18Ni10Ti 连多硫酸应力腐蚀

废热锅炉换热管爆裂分析 期刊论文 OAI收割
金属热处理, 2011, 期号: S1, 页码: 197-202
董晨; 付长明; 屈伸; 田继丰

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0Cr18Ni10T i连多硫酸应力腐蚀

一种海蜇基因组DNA的提取方法-1 专利 OAI收割
专利类型: 发明, 专利号: CN201010166122.X, 申请日期: 2011-03-23, 公开日期: 2011-03-23
崔朝霞; 张姝; 栾维莎; 刘媛

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一种海蜇基因组DNA提取方法 2)将保存的蝶状体样品放入离心管中并直接加入buffer300～400ul匀浆 3)将步骤2)中消化后的溶液取出加入6M?NaCl 其特征在于：1)将海蜇有性世代的海蜇碟状体置入体积浓度为95％的酒精中脱水并保存 30～40ul质量浓度为10％的SDS 振荡浑匀20～30S 3～5ul浓度为20mg/ml的蛋白酶K 10000～12000rpm离心20?30分钟封口后55～56℃消化0.8～1.0小时吸上清待用而后加入上清液的0.7～1倍体积的异丙醇 ?20～?18℃沉淀10～15分钟沉淀后取出以10000～12000rpm离心15?20分钟弃去液体并用体积浓度为70％的乙醇离心洗1～2次自然室温凉干即得到海蜇碟状体的DNA。

Hydrothermal Synthesis and Crystal Structure of a Novel Sandwich Germanotungstate: Ni(dien)(H(2)O)(3) (2)center dot Ni(Hdien)(2) { Ni(dien) (2)Ni(4)(H(2)O)(2) (GeW(9)O(34))(2)}center dot 10H(2)O 期刊论文 OAI收割
Chemical Journal of Chinese Universities-Chinese, 2011, 卷号: 32, 期号: 3, 页码: 571-576
X. X. Li; W. H. Fang; G. Y. Yang

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Hydrothermal synthesis Crystal structure Organic-inorganic hybrid Lacunary polyoxometalate Sandwich Nickel Keggin trivacant heteropolytungstate derivatives polyoxometalate building-blocks transition-metal clusters magnetic-properties rational syntheses w-183 nmr complexes co cu p2w18m4(h2o)2o68(10-)

一种从新鲜海带中提取含碘氨基酸的方法 专利 OAI收割
专利类型: 发明, 专利号: CN200810249531.9, 申请日期: 2010-06-23, 公开日期: 2010-06-23
韩丽君; 李敬; 袁毅; 史大永

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一种从新鲜海带中提取含碘氨基酸的方法 2)将海带加入到提取液中过滤 3)提取液用蒸汽三效浓缩罐浓缩至原提取液总重量的4-10％ 4)在pH为2-3的条件下用0.5-2浓缩液体积的1-1.5mol/LNH4OH或0.05-0.1mol/L?NaOH洗脱 5)再次用三效蒸汽浓缩罐浓缩至干其特征在于：可按如下步骤操作所述提取液海带重量3-4倍的质量浓度13-18％甲酸溶液或5-6mol/L?HCl溶液得提取液得浓缩液过大型732阳离子交换树脂柱获得含碘氨基酸粗品。 1)将新鲜海带搅拌提取16-20小时调节pH为2-3 除去杂质和外来物并且控干海带的表面的水分