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11篇 您的检索式:作者名="Christian Hell"
    题名 作者 年代 出处 被引量
1Phosphorus accumulation and leaching risk of greenhouse vegetable soils in Southeast China显示文摘Over-fertilization has caused significant phosphorus(P)accumulation in Chinese greenhouse vegetable production(GVP)soils.This study,for the first time,quantified profile P accumulation directly from soil P measurements,as well as subsoil P immobilization,in three alkaline coarse-textured GVP soil profiles with 5(S5),15(S15),and 30(S30)years of cultivation in Tongshan,Southeast China.For each profile,soil samples were collected at depths of 0-10(topsoil),10-20,20-40,40-60,60-80,and 80-100 cm.Phosphorus accumulation was estimated from the difference in P contents between topsoil and parent material(60-100 cm subsoil).Phosphorus mobility was assessed from measurements of water-soluble P concentration(P_(Sol)).Finally,P sorption isotherms were produced using a batch sorption experiment and fitted using a modified Langmuir model.High total P contents of 1980(S5),3190(S15),and 2330(S30)mg kg^(-1) were measured in the topsoils versus lower total P content of approximately 600 mg kg^(-1) in the 80-100 cm subsoils.Likewise,topsoil PSol values were very high,varying from 6.4 to 17.0 mg L^(-1).The estimated annual P accumulations in the topsoils were 397(S5),212(S15),and 78(S30)kg ha^(-1) year^(-1).Sorption isotherms demonstrated the dominance of P desorption in highly P-saturated topsoils,whereas the amount of adsorbed P increased in the 80-100 cm subsoils with slightly larger P adsorption capacity.The total P adsorption capacity of the 80-100 cm subsoils at a solution P concentration of0.5 mg L^(-1) was 15.7(S5),8.7(S15),and 6.5(S30)kg ha^(-1),demonstrating that subsoils were unable to secure P concentrations in leaching water below 0.5 mg L^(-1) because of their insufficient P-binding capacity.Yusef KIANPOOR KALKHAJEH Biao HUANG Helle SORENSEN Peter EHOLM Hans Christian BHANSEN 2021Pedosphere2021,31,5:4
2Wound Complications in 1145 Consecutive Transumbilical Single-Incision Laparoscopic Procedures显示文摘Helmut G. Weiss Walter Brunner Matthias O. Biebl Jan Schirnhofer Katharina Pimpl Christof Mittermair Christian Obrist Eberhard Brunner Tobias Hell 2014Annals of Surgery2014,,1:3
3Hemodynamics and vasopressor support in therapeutic hypothermia after cardiac arrest: Prognostic implications显示文摘John Bro-Jeppesen Jesper Kjaergaard Helle S?holm Michael Wanscher Freddy K. Lippert Jacob E. M?ller Lars K?ber Christian Hassager 2013Resuscitation2013,,:1
4Adopting a service logic in manufacturing:Conceptual foundation and metrics for mutual value creation显示文摘Christian Gr(o)nroos Pekka Helle 0,,05:1
5Environmental risk assessment of surfer water and sediments in Copenhagen harbour显示文摘HELLE V A JESPER K CHRISTIAN P 1998Water Science and Technology1998,37,67:1
6Return on relationships: conceptual understanding and measurement of mutual gains from relational business engagements显示文摘Christian Gr?nroos Pekka Helle 2012Journal of Business & Industrial Marketing2012,,5:1
7Sequencing of 231 forensic genetic markers using the MiSeq FGxTM forensic genomics system-an evaluation of the assay and software显示文摘The MiSeq FGx^(TM) Forensic Genomics System types 231 genetic markers in one multiplex polymerase chain reaction (PCR) assay.The markers include core forensic short tandem repeats (STRs) as well as identity,ancestry and phenotype informative short nucleotide polymorphisms (SNPs).In this work,the MiSeq FGx^(TM) Forensic Genomics System was evaluated by analysing reproducibility,sensitivity,mixture identification and forensic phenotyping capabilities of the assay.Furthermore,the genotype calling of the ForenSeq^(TM) Universal Analysis Software was verified by analysing fastq.gz files from the MiSeq FGx^(TM) platform using the softwares STRinNGS and GATK.Overall,the performance of the MiSeq FGx^(TM) Forensic Genomics System was high.However,locus and allele drop-outs were relatively frequent at six loci (two STRs and four human identification SNPs) due to low read depth or skewed heterozygote balances,and the stutter ratios were larger than those observed with conventional STR genotyping methods.The risk of locus and allele drop-outs increased dramatically when the amount of DNA in the first PCR was lower than 250 pg.Two-person 50∶1 mixtures were identified as mixtures,whereas 100∶1 and 1000∶1 mixtures were not.Y-chromosomal short tandem repeats (Y-STRs) alleles were detected in the 100∶1 and 1000∶1 female/male mixtures.The ForenSeq^(TM) Universal Analysis Software provided the data analyst with useful alerts that simplified the analysis of the large number of markers.Many of the alerts were due to user-defined,locus-specific criteria.The results shown here indicated that the default settings should be altered for some loci.Also,recommended changes to the assay and software are discussed.Christian Hussing Christina Huber Rajmonda Bytyci Helle S.Mogensen Niels Morling Claus Bφrsting 2018Forensic Sciences Research2018,3,2:1
8Environmental risk assessment of surface water and sediments in Copenhagen harbour显示文摘Helle V A Jesper K Christian P 1998Water Science and Technology1998,37,67:1
9Characterization of sediments from Copenhagen harbor by use of biotests显示文摘Finn Pedersen Estelle Bj?rnestad Helle Vang Andersen Jesper Kj? lholt Christian Poll 1998Wat Sci Tech1998,37,67:1
10Environmental risk assessment of surface water and sediments in Copenhagen harbour显示文摘Helle V A Jesper K Christian P 1998Water Science and Technology1998,37,67:1
11Is the Time Right for a Change in Company Reporting? Development of Company Reporting from Financial to Non-financial Information显示文摘Singer Klaus buβian Aykut Tobias Stiegler Christian Hell 2017Journal of Modern Accounting and Auditing2017,13,4:0
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