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A methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection

Frontiers in Energy 2023, Volume 17, Issue 5,   Pages 678-691 doi: 10.1007/s11708-022-0859-z

Abstract: This paper aims to improve the engine performance of the GCI mode by regulating concentration stratification

Keywords： gasoline compression ignition     injection strategy     fuel stratification     high efficiency     high load    

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Comparison of prechilling stratification and sulfuric acid scarification on seed germination of

Nan WANG, Jing GAO, Suiqi ZHANG, Feng YAN

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 220-227 doi: 10.15302/J-FASE-2017146

Abstract: To determine if prechilling stratification (PCS) and sulfuric acid scarification (SAS) can optimize establishment

Keywords： base water potential     data analysis method     embryo growth     germination    

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Risk stratification system for skin and soft tissue infections after allogeneic hematopoietic stem cell

Frontiers of Medicine 2022, Volume 16, Issue 6,   Pages 957-968 doi: 10.1007/s11684-021-0910-1

Abstract: A PPGF–AKI–HAP risk stratification system was established with a mortality risk score of 1×PPGF+1×AKI

Keywords： skin and soft tissue infections     hematopoietic stem cell transplantation     risk stratification system    

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Chaotic behavior of LNG after stratification in main stream region of storage tank

WANG Jingjing, MA Xiaoqian

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 514-518 doi: 10.1007/s11708-008-0076-4

Abstract: A study of the chaotic behavior of liquefied natural gas (LNG) after stratification in the main stream

Keywords： Runge-Kutta     non-linear     corresponding     temperature     addition    

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Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 2,   Pages 151-159 doi: 10.1007/s11709-011-0109-7

Abstract: This paper reviews and discusses stratification effects in dry soil mixtures, including some original

Keywords： rammed earth     stratification     particle size distribution     pore size distribution    

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Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI engines

Zhijun PENG ,

Frontiers in Energy 2009, Volume 3, Issue 3,   Pages 353-358 doi: 10.1007/s11708-009-0035-8

Abstract: The influences of charge stratification on spark ignition (SI) engine combustion and NO emission wereThree mixture stratification parameters such as the extent of dilution in the mixing region, the extentof combustible charge in the mixing region, and the gradient of stratification in the mixing region

Keywords： charge stratification     SI engine     lean-burn combustion     NO emission    

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Molecular pathogenesis of acute myeloid leukemia: A diverse disease with new perspectives

Felicitas THOL, Arnold GANSER

Frontiers of Medicine 2010, Volume 4, Issue 4,   Pages 356-362 doi: 10.1007/s11684-010-0220-5

Abstract: Information about the mutation status of specific genes is useful for risk-stratification, minimal residual

Keywords： acute myeloid leukemia     mutations     risk stratification    

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Effect of distributions of fuel concentration and temperature on ignition processes in a diesel PCCI combustion

Yang YU, Wanhua SU,

Frontiers in Energy 2010, Volume 4, Issue 2,   Pages 269-279 doi: 10.1007/s11708-009-0046-5

Abstract: of PCCI combustion organized by multi-pulse injection was strongly influenced by conditions of fuel stratification

Keywords： PCCI     fuel stratification     multi-pulse injection     ignition    

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Concrete construction technology on tower beam of Three Gorges Project ship lift

Yu Ying

Strategic Study of CAE 2013, Volume 15, Issue 9,   Pages 27-32

Abstract:

he concrete construction of the beam concrete of tower load-bearing structure in Three Gorges Project ship lift is difficult, with high-complexity and no mature technology available for reference. In this paper, combined with the structural features and construction characteristics of concrete pouring in tower beam of the Three Gorges Project ship lift, the concrete construction technology for continued construction of the Three Gorges Project ship lift top beam is summarized, which uses hierarchical, block pouring approaches. Through scientific computing, reasonable construction machinery layout and construction management are made out to ensure the quality of concrete construction for tower beam. The monitoring results analysis on Bailey shelf support system indicate that, the stress deformation, deflection and bent deformation of Bailey shelf support system meet the construction load requirements. The cylinder displacement also meet the technical requirements, thus Bailey shelf support system is stable and secure. The concrete construction practices of Three Gorges Project ship lift tower beam certify the effectiveness and reliability of the technical solutions. And it also provides a reference for the construction organization design and on-site implementation of similar projects.

Keywords： ship lift     beam     concrete     construction joints     pouring stratification     Three Gorges Project    

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Nitrifying population dynamics in a redox stratified membrane biofilm reactor (RSMBR) for treating ammonium-rich wastewater

Rongchang WANG, Xinmin ZHAN, Yalei ZHANG, Jianfu ZHAO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 1,   Pages 48-56 doi: 10.1007/s11783-011-0305-7

Abstract: Nitrogen removal performance and nitrifying population dynamics were investigated in a redox stratified membrane biofilm reactor (RSMBR) under oxygen limited condition to treat ammonium-rich wastewater. When the loading rate increased from 11.1±1.0 to , the nitrogen removal in the RSMBR system increased from 18.0±9.6 mgN·d to 128.9±61.7 mgN·d . Shortcut nitrogen removal was achieved with nitrite accumulation of about . Confocal micrographs showed the stratified distributions of nitrifiers and denitrifiers in the membrane aerated biofilms (MABs) at day 120, i.e., ammonia and nitrite oxidizing bacteria (AOB and NOB) were dominant in the region adjacent to the membrane, while heterotrophic bacteria propagated at the top of the biofilm. Real-time qPCR results showed that the abundance of gene was two orders of magnitude higher than the abundance of gene in the MABs. However, the gene was always detected during the operation time, which indicates the difficulty of complete washout of NOB in MABs. The growth of heterotrophic bacteria compromised the dominance of nitrifiers in biofilm communities, but it enhanced the denitrification performance of the RSMBR system. Applying a high ammonia loading together with oxygen limitation was found to be an effective way to start nitrite accumulation in MABs, but other approaches were needed to sustain or improve the extent of nitritation in nitrogen conversion in MABs.

Keywords： ammonium-rich wastewater     membrane biofilm reactor     nitrification     redox stratification     shortcut nitrogen    

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Patient-derived xenograft platform of OSCC: a renewable human bio-bank for preclinical cancer research and a new co-clinical model for treatment optimization

Shuyang Sun,Zhiyuan Zhang

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 104-110 doi: 10.1007/s11684-016-0432-4

Abstract: translational value of this well-annotated PDX panel in the development of co-clinical trials for patient stratification

Keywords： patient-derived xenograft models     personalized medicine     co-clinical trial     patient stratification     oral    

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SinoSCORE: a logistically derived additive prediction model for post-coronary artery bypass grafting in-hospital mortality in a Chinese population

Zhe Zheng, Lu Zhang, Xi Li, Shengshou Hu, on behalf of the Chinese CABG Registry Study

Frontiers of Medicine 2013, Volume 7, Issue 4,   Pages 477-485 doi: 10.1007/s11684-013-0284-0

Abstract:

This study aims to construct a logistically derived additive score for predicting in-hospital mortality risk in Chinese patients undergoing coronary artery bypass surgery (CABG). Data from 9839 consecutive CABG patients in 43 Chinese centers were collected between 2007 and 2008 from the Chinese Coronary Artery Bypass Grafting Registry. This database was randomly divided into developmental and validation subsets (9:1). The data in the developmental dataset were used to develop the model using logistic regression. Calibration and discrimination characteristics were assessed using the validation dataset. Thresholds were defined for each model to distinguish different risk groups. After excluding 275 patients with incomplete information, the overall mortality rate of the remaining 9564 patients was 2.5%. The SinoSCORE model was constructed based on 11 variables: age, preoperative NYHA stage III or IV, chronic renal failure, extracardiac arteriopathy, chronic obstructive pulmonary disease, preoperative atrial fibrillation or flutter (within 2βweeks), left ventricular ejection fraction, other elective surgery, combined valve procedures, preoperative critical state, and BMI. In the developmental dataset, calibration using a Hosmer-Lemeshow (HL) test was at =β0.44 and discrimination based on the area under the receiver operating characteristic curve (ROC) was 0.80. In the validation dataset, the HL test was at =β0.34 and the area under the ROC (AUC) was 0.78. A logistically derived additive model for predicting in-hospital mortality among Chinese patients undergoing CABG was developed based on the most up-to-date multi-center data from China.

Keywords： coronary artery bypass grafting     risk stratification     in-hospital mortality    

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The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificial landscape: a case study of Olympic Forest Park in Beijing

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 269-278 doi: 10.1007/s11783-014-0672-y

Abstract: been paid to its variability in the urban landscapes with respect to the possible influence of texture stratificationThe texture stratification significantly affected the vertical distribution of moisture in the non-irrigated

Keywords： moisture vertical distribution     moisture temporal variation     texture stratification     irrigation     meteorological    

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Title Author Date Type Operation

A methodology for regulating fuel stratification and improving fuel economy of GCI mode via double main-injection

Journal Article

Comparison of prechilling stratification and sulfuric acid scarification on seed germination of

Nan WANG, Jing GAO, Suiqi ZHANG, Feng YAN

Journal Article

Risk stratification system for skin and soft tissue infections after allogeneic hematopoietic stem cell

Journal Article

Chaotic behavior of LNG after stratification in main stream region of storage tank

WANG Jingjing, MA Xiaoqian

Journal Article

Structure creation in earthen construction materials: information from dry soil mixtures

Christopher BECKETT, Charles AUGARDE

Journal Article

Numerical simulation of charge stratifications to improve combustion and NO formation of lean-burn SI engines

Zhijun PENG ,

Journal Article

Molecular pathogenesis of acute myeloid leukemia: A diverse disease with new perspectives

Felicitas THOL, Arnold GANSER

Journal Article

Effect of distributions of fuel concentration and temperature on ignition processes in a diesel PCCI combustion

Yang YU, Wanhua SU,

Journal Article

Concrete construction technology on tower beam of Three Gorges Project ship lift

Yu Ying

Journal Article

Nitrifying population dynamics in a redox stratified membrane biofilm reactor (RSMBR) for treating ammonium-rich wastewater

Rongchang WANG, Xinmin ZHAN, Yalei ZHANG, Jianfu ZHAO

Journal Article

Patient-derived xenograft platform of OSCC: a renewable human bio-bank for preclinical cancer research and a new co-clinical model for treatment optimization

Shuyang Sun,Zhiyuan Zhang

Journal Article

SinoSCORE: a logistically derived additive prediction model for post-coronary artery bypass grafting in-hospital mortality in a Chinese population

Zhe Zheng, Lu Zhang, Xi Li, Shengshou Hu, on behalf of the Chinese CABG Registry Study

Journal Article

The effect of texture and irrigation on the soil moisture vertical-temporal variability in an urban artificial landscape: a case study of Olympic Forest Park in Beijing

Xiaofeng ZHANG,Xu ZHANG,Guanghe LI

Journal Article