检索结果-南通市图书馆

Securing the Well-Being of Future Generations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Today 2020年第1期69卷 14-15页

作者： BERTIE ahern the Inter Action Council

PRESENTLY,the human race is standing at a critical juncture in history,as we risk creating a world that is no longer compatible with human *** is mounting that we need to significantly scale down carbon emissions before climate change reaches the point of no *** we carry on with our current trajectory,we are projected to reach a three-to four-degree Celsius rise by 2100,and a three-to 10-degree Celsius rise by *** put it plainly,our planet is sick,and we all need to work together to ensure the well-being of future generations.

关键词： planet curing return

A Golden Opportunity for Better International Relations

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Today 2021年第3期70卷 14-16页

作者： BERTIE ahern the InterAction Council

THE Biden administration’s arrival,after years of turbulent,impulsive,and damaging policies pursued by the Trump administration,was met with new hopes and optimism around the *** von der Leyen,president of the European Commission,said,“This new dawn in America is the moment we’ve been waiting for so *** again,after four long years,Europe has a friend in the White House.”In Beijing as well,China’s Foreign Ministry welcomed the new President with its spokesperson Hua Chunying at a regular press briefing,“With cooperation from both sides,the better angels in *** will beat the evil forces.”

关键词： turbulent impulsive Golden

Removing contaminants from tannery wastewater by chemical precipitation using CaO and Ca(OH)2

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2020年第4期28卷 1107-1111页

作者： Adriana Reyes-Serrano Joel ELópez-Alejo Manuel ahernández-Cortázar Ignacio Elizalde Instituto Politécnico Nacional Centro Mexicano para la Producción más LimpiaCiudad de México 07340Mexico

The removal of Cr,sulfates and Chemical Oxygen Demand(COD)from industrial tannery wastewater by chemical precipitation was carried out using Calcium oxide(CaO)and Calcium hydroxide(Ca(OH)2).Different doses of alkalis,ranging from deficiency to excess hydroxyl species over the stoichiometric necessary,were used to remove theoretically the 100%of Cr[0.3-3.2 g alkali·(g Cr^3+)^-1].The precipitation was carried out at room temperature,10 min of vigorous stirring,200 r·min^-1 and a settling time of 24 h,followed by separation and characterization of liquid *** result of addition of alkalis,pH underwent increase as did the alkali *** removal of Cr,and sulfates also increased as alkali concentration did,although for first species the changes at higher alkali contents were less *** removal on the other hand,did not follow a unique trend,instead exhibited a *** on our results,selection of a specific dose of alkali was carried out taking as reference the efficiency on total chromium removal,keeping the pH in the range 7 to 9 to ensure Cr precipitation as chromium *** those conditions,jar test was used to produce enough liquid product in order to determine the removal percent of several other *** removal percent of the species was as follows:Cr,SO4^2-,ZnSO4,FeSO4,CN^-1,NiSO4,Fe2[Fe(CN)6]at 99.8%,66.9%,99.6%,21.4%,70.9%,52.8%and 76.4%with CaO,and 99.8%,61.6%,99.9%,7.1%,84.0%,54.4%and 90.5%with Ca(OH)2,respectively.

关键词： Tannery wastewater Alkali Removal Chromium Sulfates Synergistic effect

Randomized study comparing incidence of radial artery occlusion post-percutaneous coronary intervention between two conventional compression devices using a novel airinflation technique

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Cardiology 2017年第11期9卷 807-812页

作者： Victor Voon Muhammad Ayyaz Ul Haq Ciara Cahill Kirsten Mannix Catriona ahern Terence Hennessy Samer Arnous Thomas Kiernan Cardiology Department University Hospital LimerickDooradoyleLimerickIreland

AIM To compare post-percutaneous coronary intervention(PCI) radial artery occlusion(RAO) incidence between two conventional radial artery compression devices using a novel air-inflation *** One hundred consecutive patients post-PCI were randomized 1:1 to Safeguard or TR band compression devices. Post-radial sheath removal, each compression device was inflated with additional 2 m L of air above index bleeding point during air-filled device application and gradually down-titrated accordingly. RAO was defined as absence of Doppler flow signal performed at 24 h and at 6 wk post-PCI. Patients with missing data were excluded. Statistical significance was defined as P < *** All patients had 6 F radial sheath inserted. No significant differences were observed between Safeguard Radial(n = 42) vs TR band(n = 42) in terms of age(63 ± 11 years vs 67 ± 11 years), clinical presentation(electives, n = 18 vs n = 16; acute coronary syndrome, n = 24 vs n = 26) and total procedural heparin(7778 ± 2704 IU vs 7825 ± 2450 IU). RAO incidence was not significantly different between groups at 24 h(2% vs 0%, P = 0.32) and 6 wk(0%, both).CONCLUSION Safeguard Radial and TR band did not demonstrate significant between-group differences in short-term RAO incidence. Lack of evidence of RAO in all postPCI patients at 6 wk follow-up, regardless of radial compression device indicate advantage of using the novel and pragmatic air-inflation technique. Further work is required to more accurately confirm these findings.

关键词： Radial artery Arterial occlusive disease Cardiac catheterization

IRIS数据管理系统:它的发展、现状和计划方向

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

世界地震译丛 1997年第5期28卷 32-49页

作者： T.ahern FrancisWu 刘希玲国家地震局地球物理研究所

引言在过去的7年里,位于西雅图的IRIS数据管理中心的数据存档已成为地震学家为研究地球内部和震源情况而收集地震数据的数据源。在这些数据存档中,包含有执行IRIS PASSCAL项目期间部署的临时地震台站的数据,有IRIS全球地震台网的永久台... 详细信息

引言在过去的7年里,位于西雅图的IRIS数据管理中心的数据存档已成为地震学家为研究地球内部和震源情况而收集地震数据的数据源。在这些数据存档中,包含有执行IRIS PASSCAL项目期间部署的临时地震台站的数据,有IRIS全球地震台网的永久台站的数据,数字地震台网联盟的其他合作成员组织台网的数据以及来自美国地质调查局运行的早期数字台网的重要数据,由于中心还提供了获取这些波形数据有效方法,而成为世界上最大的地震波形数据的汇集中心。在大地震发生后的几小时内。

关键词：地震数据 IRIS 数据管理系统计划方向发展方向

人类世城市生态系统:其概念、定义和支持城市可持续性和弹性的策略

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

景观设计学（中英文） 2016年第1期4卷 10-21页

作者：杰克·埃亨美国马萨诸塞州阿姆赫斯特大学

21世纪是一个充满着前所未有的根本性变化和新轨迹的时代—想想气候变化、全球经济、人口迁移和人口增长。当今的世界以城市为主导,而且这一趋势将一直持续到本世纪中叶,据预计,届时约70%的全球人口将生活在城市。世界已经进入了一个全... 详细信息

21世纪是一个充满着前所未有的根本性变化和新轨迹的时代—想想气候变化、全球经济、人口迁移和人口增长。当今的世界以城市为主导,而且这一趋势将一直持续到本世纪中叶,据预计,届时约70%的全球人口将生活在城市。世界已经进入了一个全新的地质时代—人类世,人类的影响和创造已被认定为一种地质力。在这个＂属于城市的世纪＂中,为了使世界拥有可持续性和弹性,城市是解决方案的关键所在—而且,人类世城市生态系统将发挥至关重要的作用。本文提出了21世纪＂人类世＂城市自然的新的概念、定义和类型,并以此为基础,提出了一种人类世城市生态系统策略,以为城市可持续性和弹性的实现提供必要的生态系统服务。这一人类世自然策略是在景观和城市生态的基础之上提出的,该策略需要结合城市景观设计学实践,在＂设计好的实验＂中进行系统性协作。这些设计好的实验对于人类世城市生态系统的必要性体现在：1）对创新性设计的绩效进行监测,以提供必要的生态系统服务;2）降低不可避免的生态系统危害;3）建立公众对于人类世城市生态系统新类型和新模式的理解和支持。

关键词：人类世城市生态系统城市弹性城市景观生态系统服务景观绩效适应性设计