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Factors influencing peak bone mass gain

Xiaowei Zhu, Houfeng Zheng

Frontiers of Medicine 2021, Volume 15, Issue 1,   Pages 53-69 doi: 10.1007/s11684-020-0748-y

Abstract: Race, gender, and family history (genetics) are responsible for the majority of PBM, but other factorsHence, the optimization of lifestyle factors that affect PBM and bone strength is an important strategyThis review aims to summarize the available evidence for the common but important factors that influence

Keywords: peak bone mass     children     adolescents     genetic     risk factors    

Factors influencing the photodegradation of

Bingbing XU, Zhonglin CHEN, Fei QI, Jimin SHEN, Fengchang WU

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 91-97 doi: 10.1007/S11783-009-0013-8

Abstract: In order to provide basic data for practical application,photodegradation experiment of -nitrosodimethylamine (NDMA) in aqueous solution was carried out with a low-pressure Hg lamp. Effects of the initial concentration of NDMA, solution pH, dissolved oxygen, and the presence of humic acid on NDMA photodegradation were investigated. NDMA at various initial concentrations selected in this study was almost completely photodegraded by UV irradiation within 20 min, except that at 1.07 mmol/L, NDMA could be photodegraded almost completely in the acidic and neutral solutions, while the removal efficiency decreased remarkably in the alkaline solution. Dissolved oxygen enhanced the NDMA photodegradation, and the presence of humic acid inhibited the degradation of NDMA. Depending on the initial concentration of NDMA, NDMA photodegradation by UV obeyed the pseudo-first-order kinetics. Dimethylamine, nitrite, and nitrate were detected as the photodegradation products of NDMA. O was found to be the reactive oxygen species present in the NDMA photodegradation process by UV, based on the inhibiting experiments using tert-butanol and sodium azide.

Keywords: N-nitrosodimethylamine (NDMA)     ultraviolet irradiation     degradation kinetic     dimethylamine     photodegradation product    

Metal Corrosion in Carbon Capture, Utilization, and Storage: Progress and Challenges

Xiang Yong , Yuan Yu , Zhou Pei , Liu Guangsheng , Lyu Wei , Li Mingxing , Zhang Chunxia , Zhou Qingjun , Zhao Xuehui , Yan Wei

Strategic Study of CAE 2023, Volume 25, Issue 3,   Pages 197-208 doi: 10.15302/J-SSCAE-2023.07.026

Abstract:

This study reviews the metal corrosion problem regarding the carbon captureBased on the novel corrosion environments, the uniqueness of corrosion behaviors, limited cognitionand its major influencing factors, explores the challenges it brings, and draws the following conclusionsprocess are complex, and some degradation products have a inhibitory effect on metal corrosion.the moisture content is the key to controlling this corrosion problem.

Keywords: carbon capture     utilization     and storage     carbon source impurities     corrosion environment characteristics     influencing factors of corrosion     supercritical CO2    

Characteristics and Influencing Factors of Microplastics in Snow in the Inner Mongolia Plateau, China

Hongwei Yu,Junrong Shao,Huawei Jia,Diga Gang,Baiwen Ma,Chengzhi Hu,

Engineering doi: 10.1016/j.eng.2023.02.007

Abstract: Microplastics (MPs; < 5 mm) have become one of the most prominent global environmental pollution problems. MPs can spread to high altitudes through atmospheric transport and can be deposited by rainfall or snowfall, potentially threatening the structure and function of natural ecosystems. MPs in terrestrial and aquatic ecosystems alter the growth and functional characteristics of organisms. However, little attention has been given to the possible harm associated with MPs deposited in snow, particularly in the context of global climate warming. MPs collected from surface snow in the Inner Mongolia Plateau, China, were used for quantitative analysis and identification. The results showed that MPs were easily detected, and the related concentration was approximately 68 ± 10–199 ± 22 MPs·L−1 in snow samples. Fibers were the most common morphology, the polymer composition was largely varied, and the abundance and composition of MPs were linked to human activity to a great extent. High-throughput sequencing results showed that the composition and abundance of microorganisms also differed in snow samples from areas with different MP pollution characteristics, indicating a considerable difference in microbial functional diversity. MPs may have an interference effect on the individual growth and functional expression of microorganisms in snow. In addition, the results showed that functional living areas (e.g., landfills and suburban areas) in cities play an important role in the properties of MPs. For instance, the highest abundance of MPs was found in thermal power plants, whereas the abundance of polymers per sample was significantly lower in landfills. The MP contaminants hidden in snow can alter microbial structure and function and are therefore a potential threat to ecosystem health.

Keywords: Human activities     Snow     Microplastics     Microbial community     Urban function     Environmental effect    

Influencing factors and control measures of excavation on adjacent bridge foundation based on analytic

Shuangxi FENG, Huayang LEI, Yongfeng WAN, Haiyan JIN, Jun HAN

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 461-477 doi: 10.1007/s11709-021-0705-0

Abstract: The AHP was adopted to determine key influencing factors based on the weight of each influencing factorThe FEM was used to quantify the impact of the key influencing factors on the surrounding environmentA matrix comparing the lower index layer to the upper index layer, and the weight of each influencingfactors on the bridge foundation.A novel method for combining AHP with FEM can be used to determine the key influencing aspects among

Keywords: deep foundation pit excavation     adjacent bridge foundation     influencing factors     analytic hierarchy process    

Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Frontiers of Engineering Management 2021, Volume 8, Issue 3,   Pages 402-411 doi: 10.1007/s42524-020-0098-0

Abstract: The mechanism and factors that influence the degree of management synergy are analyzed on the basis ofdegree of synergy model are established, and grey relational analysis is utilized to identify the key factorsThe key factors in improving the synergy level of hydropower EPC project management are mainly concentrated

Keywords: hydropower project     EPC mode     synergy degree model     grey relational analysis    

FACTORS INFLUENCING FOOD-WASTE BEHAVIORS AT UNIVERSITY CANTEENS IN BEIJING, CHINA: AN INVESTIGATION BASED

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 1,   Pages 83-94 doi: 10.15302/J-FASE-2022472

Abstract:

● Investigate the actual situation of food waste at university canteens in Beijing, China.

Keywords: university students     food waste behavior     theory of planned behavior     university canteen    

Analysis of influencing factors of groundwater level variation at Donglutian coal industrial ground of

Lin Dujun,Gong Shoucai,Zhang Yinzhou

Strategic Study of CAE 2012, Volume 14, Issue 2,   Pages 49-53

Abstract: text-align: justify;">On the basis of study for three-dimensional flow numerical model , The author analyzed influencingThe results showed that there are several factors influence the change of ground-water level by fillingIn response to these main factors, author studied the permeability coefficient of all kinds of soil and

Keywords: numerical model     variation in ground water level     influencing factors     sensitivity analysis    

Factors influencing near infrared spectroscopy analysis of agro-products: a review

Xiao XU, Lijuan XIE, Yibin YING

Frontiers of Agricultural Science and Engineering 2019, Volume 6, Issue 2,   Pages 105-115 doi: 10.15302/J-FASE-2019255

Abstract: However, there are still more than 40 error sources influencing the robustness and accuracy of its calibrationEnvironmental, sample and instrument factors that influence the analysis are discussed in this review, including temperature, humidity and other factors that introduce uncertainty.

Keywords: agro-product     error source     influence factor     near infrared spectroscopy    

Evaluation of factors influencing soluble microbial product in submerged MBR through hybrid ASM model

Fangyue LI, Joachim BEHRENDT, Knut WICHMANN, Ralf OTTERPOHL

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 226-235 doi: 10.1007/s11783-009-0008-5

Abstract: In this study, a mathematical model was established to predict the formation of the soluble microbial product (SMP) in a submerged membrane bioreactor. The developed model was calibrated under the reference condition. Simulation results were in good agreement with the measured results under the reference condition. The calibrated model was then used in the scenario studies to evaluate the effect of three chosen operating parameters: hydraulic retention time (HRT), dissolved oxygen concentration, and sludge retention time (SRT). Simulation results revealed that the SMP dominated the soluble organic substances in the supernatant. The scenario studies also revealed that the HRT can be decreased to 1 h without deteriorating the effluent quality; dissolved oxygen concentration in the reactor can be kept at 2-3 mg/L to maintain the effluent quality, reduce the content of SMP, and minimize operating costs; the optimal SRT can be controlled to 10-15 d to achieve complete nitrification process, less membrane fouling potential, and acceptable organic removal efficiency.

Keywords: hybrid activated sludge model (ASM)     membrane bioreactor (MBR)     soluble microbial product (SMP)    

Analysis of the main influencing factors on the offshore wind farm plan

He Jie,Zhao Xin,Yang Jiasheng

Strategic Study of CAE 2010, Volume 12, Issue 11,   Pages 16-19

Abstract: Finally, the main influencing factors and solutions in the planning of offshore wind farm were analyzed

Keywords: offshore wind power     wind resource     plan     influencing factors    

The influencing factors of the WTP for the risk reduction of chemical industry accidents in China

Lei HUANG, Zhijuan SHAO, Weiliang BAO, Bailing DUAN, Jun BI, Zengwei YUAN

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 860-868 doi: 10.1007/s11783-012-0467-y

Abstract: To explore the factors that influence respondents’ willingness to pay (WTP) for the risk reduction ofcharacteristics of the hazards were considered in this study, and a Tobit model was used to find the factorsinfluencing WTP under three risk reduction scenarios.In addition, three extracted public risk perception factors, , , and , also strongly affected theThe number of factors influencing the WTP decreased as the reduction level improved, and only the factor

Keywords: risk perception     willingness to pay     contingent valuation method     risk management school of the environment    

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 875-885 doi: 10.1007/s11783-013-0568-2

Abstract: variations and human activities on the ecosystem function of the Weihe River, the changes in major factors

Keywords: influencing factors     ecosystem health     ecological and environmental functions     the Weihe River     Shaanxi Province    

Antibiotic resistance genes in manure-amended paddy soils across eastern China: Occurrence and influencingfactors

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1499-y

Abstract:

• Manure fertilization resulted in antibiotic residues and increased metal contents.

Keywords: Pig manure     Antibiotics     Metals     Antibiotic resistance genes     Paddy fields    

The analysis report on the factors that affect the China’s vehicle development capability

Zhang Ning,Yao Qun,Zhang Wenjie,Jiang Ying

Strategic Study of CAE 2009, Volume 11, Issue 11,   Pages 37-44

Abstract: #39;s vehicle product development first of all, and with this evaluation system we analyzed the key factors

Keywords: vehicle     development     capability     influencing factors    

Title Author Date Type Operation

Factors influencing peak bone mass gain

Xiaowei Zhu, Houfeng Zheng

Journal Article

Factors influencing the photodegradation of

Bingbing XU, Zhonglin CHEN, Fei QI, Jimin SHEN, Fengchang WU

Journal Article

Metal Corrosion in Carbon Capture, Utilization, and Storage: Progress and Challenges

Xiang Yong , Yuan Yu , Zhou Pei , Liu Guangsheng , Lyu Wei , Li Mingxing , Zhang Chunxia , Zhou Qingjun , Zhao Xuehui , Yan Wei

Journal Article

Characteristics and Influencing Factors of Microplastics in Snow in the Inner Mongolia Plateau, China

Hongwei Yu,Junrong Shao,Huawei Jia,Diga Gang,Baiwen Ma,Chengzhi Hu,

Journal Article

Influencing factors and control measures of excavation on adjacent bridge foundation based on analytic

Shuangxi FENG, Huayang LEI, Yongfeng WAN, Haiyan JIN, Jun HAN

Journal Article

Analysis of synergy degree and its influencing factors in hydropower EPC project management

Jiwei ZHU, Hua GAO, Jiangrui WANG

Journal Article

FACTORS INFLUENCING FOOD-WASTE BEHAVIORS AT UNIVERSITY CANTEENS IN BEIJING, CHINA: AN INVESTIGATION BASED

Journal Article

Analysis of influencing factors of groundwater level variation at Donglutian coal industrial ground of

Lin Dujun,Gong Shoucai,Zhang Yinzhou

Journal Article

Factors influencing near infrared spectroscopy analysis of agro-products: a review

Xiao XU, Lijuan XIE, Yibin YING

Journal Article

Evaluation of factors influencing soluble microbial product in submerged MBR through hybrid ASM model

Fangyue LI, Joachim BEHRENDT, Knut WICHMANN, Ralf OTTERPOHL

Journal Article

Analysis of the main influencing factors on the offshore wind farm plan

He Jie,Zhao Xin,Yang Jiasheng

Journal Article

The influencing factors of the WTP for the risk reduction of chemical industry accidents in China

Lei HUANG, Zhijuan SHAO, Weiliang BAO, Bailing DUAN, Jun BI, Zengwei YUAN

Journal Article

Changes in major factors affecting the ecosystem health of the Weihe River in Shaanxi Province, China

Qi LI, Jinxi SONG, Anlei WEI, Bo ZHANG

Journal Article

Antibiotic resistance genes in manure-amended paddy soils across eastern China: Occurrence and influencingfactors

Journal Article

The analysis report on the factors that affect the China’s vehicle development capability

Zhang Ning,Yao Qun,Zhang Wenjie,Jiang Ying

Journal Article