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您的检索式：作者名="Markku Halonen"
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| 1 | Particulate Air Pollution and Acute Cardiorespiratory Hospital Admissions and Mortality Among the Elderly显示文摘 | Jaana I. Halonen Timo Lanki Tarja Yli-Tuomi Pekka Tiittanen Markku Kulmala Juha Pekkanen | 2009 | Epidemiology2009，，1： | 1 |
| 2 | Behavior of Decayed Spruce (Picea abies) during Kraft Pulping显示文摘This study indicated that by applying an improved classification system to decayed large-diameter Norway spruce(Picea abies)wood,its use as raw material for kraft pulping without loss of pulp quality could be essentially increased.This is based on the fact that although the cooking yield of decayed spruce material which has been sorted according to these new recommendations is somewhat lower and Kappa number higher than those of sound wood material,the greatest part of the decayed stem(the outer part of the stem)contains long-fiber wood material which produces pulp of good quality.Therefore,large-diameter spruce logs can also be separately used,for example,in the manufacture of reinforcement pulp. | Markku Halonen Raimo Alén | 2020 | Paper And Biomaterials2020，5，4： | 0 |
| 3 | The missing base molecules in atmospheric acid–base nucleation显示文摘Transformation of low-volatility gaseous precursors to new particles affects aerosol number concentration,cloud formation and hence the climate.The clustering of acid and base molecules is a major mechanism driving fast nucleation and initial growth of new particles in the atmosphere.However,the acid–base cluster composition,measured using state-of-the-art mass spectrometers,cannot explain the measured high formation rate of new particles.Here we present strong evidence for the existence of base molecules such as amines in the smallest atmospheric sulfuric acid clusters prior to their detection by mass spectrometers.We demonstrate that forming(H_(2)SO_(4))1(amine)1 is the rate-limiting step in atmospheric H_(2)SO_(4)-amine nucleation and the uptake of(H_(2)SO_(4))1(amine)1 is a major pathway for the initial growth of H_(2)SO_(4)clusters.The proposed mechanism is very consistent with measured new particle formation in urban Beijing,in which dimethylamine is the key base for H_(2)SO_(4)nucleation while other bases such as ammonia may contribute to the growth of larger clusters.Our findings further underline the fact that strong amines,even at low concentrations and when undetected in the smallest clusters,can be crucial to particle formation in the planetary boundary layer. | Runlong Cai Rujing Yin Chao Yan Dongsen Yang Chenjuan Deng Lubna Dada Juha Kangasluoma Jenni Kontkanen Roope Halonen Yan Ma Xiuhui Zhang Pauli Paasonen Tuukka Petaja Veli-Matti Kerminen Yongchun Liu Federico Bianchi Jun Zheng Lin Wang Jiming Hao James N.Smith Neil M.Donahue Markku Kulmala Douglas R.Worsnop Jingkun Jiang | 2022 | National Science Review2022，9，10： | 0 |
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