| 1. |
- Haneda, Katsuyuki, et al.
(author)
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Comparison of angular and delay spreads between channel measurements and the COST channel model
- 2010
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In: ; , s. 477-480
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Conference paper (peer-reviewed)abstract
- The COST2100 channel model is a reference channel model which provides dynamic multiple-input multiple-output channel responses for radio system simulations. In this paper, channels created by the COST2100 model were compared to channel measurements in order to understand behaviours of the model. Model parameters of the COST2100 model were derived by dynamic double-directional channel measurements with which the channel realizations from the COST2100 model were compared. Delay and angular spreads were used as a simple but important metric for the comparison. Despite a fundamental difference that the COST2100 model is a geometry- based stochastic model while the channel measurements are ob- tained in deterministic environments, the comparison revealed an acceptable level of agreement for practical channel simulations.
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| 2. |
- Liu, Jiacheng, et al.
(author)
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Improvement in modeling NH3/CH4 combustion based on the effects of the H-abstraction reactions and disproportionation reactions
- 2024
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In: Journal of the Energy Institute. - 1743-9671. ; 114
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Journal article (peer-reviewed)abstract
- The H-abstraction reactions and disproportionation reactions play very important roles in the NH3/CH4 combustion model. The rate coefficient of the H-abstraction reaction, CH2O + NH2[dbnd]HCO + NH3 (R1430), theoretically calculated by Li & Lü was multiplied by 100 in the works of Dai et al. to better match the experiment, which was repeatedly adopted in the subsequent NH3/CH4 kinetic models. Moreover, the disproportionation reaction, HCO + NH2[dbnd]CO + NH3 (R1449), is not considered in the current existing NH3/CH4 kinetic models. In this work, the NH3–CH4 model is proposed including the C1–C2 sub-model, NH3 sub-model, and cross-reactions between nitrogen-containing species and hydrocarbon species including R1430 with the rate coefficient of Li & Lü, and R1449. The NH3–CH4 model was extensively validated by the SPs, IDTs, and LFSs of NH3/CH4 mixtures from the literature. The effects of the H-abstraction reaction and disproportionation reactions on the profiles of CH2O, IDTs, and LFSs of NH3/CH4 are closely studied by the sensitivity analysis and the rate of production (ROP) analysis using the NH3–CH4 model, and the effects of R1430 and R1449 are discussed by the comparison among the NH3–CH4 model, KAUST model and KAUST model with original rate constants. R1430 inhibits the CH2O formation. Multiplying the rate constant of R1430 by 100 in the KAUST model significantly deteriorates the prediction of CH2O. R1449 has significant inhibiting effects on LFSs due to reducing the H production in the pathway HCO→CO in the NH3–CH4 model. The rate constant of R1430 had to be artificially enhanced to predict well LFSs of NH3/CH4 mixtures in the KAUST model due to the absence of R1449. R1430 has significant promoting effects on IDTs, and the disproportionation reactions have a negligible influence.
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| 3. |
- Poutanen, Juho, et al.
(author)
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Parameterization of the COST 2100 MIMO channel model in indoor scenarios
- 2011
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In: [Host publication title missing]. - 9781457702501 ; , s. 3606-3610
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Conference paper (peer-reviewed)abstract
- Abstract in Undetermined The COST 2100 MIMO channel model is the latest evolution of the geometry-based stochastic channel models developed by the COST actions. This paper provides a full parameterization of the COST 2100 channel model in four indoor scenarios based on channel measurements conducted in two different buildings. In addition to the parameter values, the meaning and extraction method of each parameter are explained.
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| 4. |
- Wang, Tao, et al.
(author)
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The benefit of taxane-based therapies over fluoropyrimidine plus platinum (FP) in the treatment of esophageal cancer : a meta-analysis of clinical studies
- 2019
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In: Drug Design, Development and Therapy. - 1177-8881. ; 13, s. 539-553
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Journal article (peer-reviewed)abstract
- Purpose: Fluoropyrimidine plus platinum (FP) is currently the standard treatment for esophageal cancer (EC). In recent years, taxane-based chemotherapy has also been used and has shown good efficacy in EC. This study aims to investigate the advantages of taxane-based over FP chemotherapy, as well as discuss its drawbacks, in the treatment of EC. Patients and methods: A literature search was done for studies comparing clinical outcomes between taxane-based and FP chemotherapy in EC. Pooled analyses were performed to compare the efficacy and grade 3/4 adverse events in patients who received neoadjuvant chemotherapy (NACT), neoadjuvant chemoradiotherapy (NACRT), or definitive chemoradiotherapy (dCRT). Subgroup analyses were also conducted in esophageal squamous cell carcinoma (ESCC). Results: Thirty-one studies with a total of 3,912 patients were included in the analysis. Better long-term survival was found in patients who received taxane-based NACT (progression-free survival (PFS): pooled HR=0.58, P=0.0008; and overall survival (OS): pooled HR=0.50, P<0.00001) and dCRT (PFS: pooled HR=0.75, P<0.0001). In NACRT, taxane-based treatment and FP showed similar efficacy. In ESCC patients, taxane-based treatment showed better OS (NACT: pooled HR=0.57, P=0.02; NACRT: pooled HR=0.51, P=0.03; and dCRT: pooled HR=0.73, P<0.0001) than FP chemotherapy. Furthermore, taxane-based therapy also showed a better short-term response (complete response (CR), objective response rate (ORR), disease control rate (DCR), or pathologic complete response (pCR). However, taxane-based therapy was significantly correlated with a higher incidence of grade 3/4 leukopenia, neutropenia, and diarrhea. Conclusion: Compared to FP, taxane-based therapy produced better clinical response and outcomes in EC patients receiving NACT or dCRT, and in all types of therapy in patients with ESCC. Taxane-based treatment is associated with more frequent toxicity.
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