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Performance enhancement of partially shaded solar PV array using novel shade dispersion technique

Namani RAKESH,T. Venkata MADHAVARAM

Frontiers in Energy 2016, Volume 10, Issue 2,   Pages 227-239 doi: 10.1007/s11708-016-0405-y

Abstract: (SPVA) generates a smaller amount of power than the standard rating of the panel due to the partial shadingThis method can distribute the shading effect over the entire PV array, without concentrating on anyFor different types of shading patterns, the output power of the solar PV array with the proposed magic, reducing the mismatch losses caused by partial shading.A comparison of power loss for different types of topologies under different types of shading patterns

Keywords： photovoltaic cells     mismatch loss     shading patterns     partial shading     magic square     power enhancement     global    

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Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case

Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 279-287 doi: 10.1007/s11783-014-0667-8

Abstract: This study examines the impact of riparian vegetation patterns on water pollution due to soil nutrientFour riparian vegetation patterns from the river channel to the upland were chosen as the focus of thisThe different distributions of soil nutrients along vegetation patterns and the potential risk of nutrientThe vegetation patterns of grassland-cropland and grassland-manmade lawn show that the grassland in the

Keywords： riparian     vegetation patterns     soil nutrient distribution     nutrient loss     management    

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Exploring the development of municipal solid waste disposal facilities in Chinese cities: patterns and

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 11, doi: 10.1007/s11783-023-1739-4

Abstract:

● We tracked Chinese cities’ MSW disposal infrastructure development history.

Keywords： China     Municipal solid waste (MSW)     Landfill     Incineration     Proliferation patterns     Driving forces    

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Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial shading

P. SRINIVASA RAO,P. DINESH,G. SARAVANA ILANGO,C. NAGAMANI

Frontiers in Energy 2015, Volume 9, Issue 2,   Pages 199-210 doi: 10.1007/s11708-015-0350-1

Abstract: Partial shading is a common phenomenon in PV arrays.The system is designed and simulated in a Matlab/Simulink environment for various shading patterns and

Keywords： array configuration     mismatch losses     partial shading     line losses     Su-Do-Ku arrangement    

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Microenvironmental time-activity patterns in Chongqing, China

Yu ZHAO, Shuxiao WANG, Gangcai CHEN, Fei WANG, Kristin AUNAN, Jiming HAO

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 2,   Pages 200-209 doi: 10.1007/s11783-009-0010-y

Abstract: investigation using recall questionnaires was conducted in winter and autumn 2006 to evaluate the time-activity patterns

Keywords： time-activity patterns     microenvironment     general linear model (GLM)     Chongqing     China    

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Associations of sleeping patterns and isotemporal substitution of other behavior with the prevalence

Frontiers of Medicine doi: 10.1007/s11684-023-1019-5

Abstract: in subpopulations with diverse metabolic statuses underlined the importance of optimizing sleeping patterns

Keywords： sleep     physical activity     chronic kidney disease     isotemporal substitution     behavioral pattern    

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Analysis of driving forces behind diversified carbon dioxide emission patterns in regions of the mainland

Xin TIAN, Hidefumi IMURA, Miao CHANG, Feng SHI, Hiroki TANIKAWA

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 445-458 doi: 10.1007/s11783-011-0330-6

Abstract: This paper investigates these disparities in CO emission patterns and identifies the factors underlyingmainland provinces (Tibet not included) can be divided into seven groups with three typical CO emission patterns

Keywords： carbon dioxide emission patterns     China     economic development     index decomposition analysis     industrialization    

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Early-life famine exposure, adulthood obesity patterns, and risk of low-energy fracture

Frontiers of Medicine doi: 10.1007/s11684-023-1023-9

Abstract: risk of osteoporosis, but the association of early-life undernutrition combined with adulthood obesity patterns

Keywords： famine     obesity     body mass index     waist-to-hip ratio     low-energy fracture    

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Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 5, doi: 10.1007/s11783-018-1068-1

Abstract:

Check-in and survey data are explored to identify personal activity-specific places.

Ways for detecting and moderating sample bias of Weibo check-in data is proposed.

A graphic representation of urban activity intensity in Beijing, China is presented.

The potential application of Weibo check-in data for urban analysis is introduced.

Keywords： Social media     Human mobility     Population bias     Sample reconstruction     Data integration    

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Clinical efficacy of comprehensive therapy based on traditional Chinese medicine patterns on patients

Frontiers of Medicine 2022, Volume 16, Issue 5,   Pages 736-744 doi: 10.1007/s11684-021-0870-5

Abstract: Effective therapy options for pneumoconiosis are lacking. Traditional Chinese medicine (TCM) presents a favorable prospect in the treatment of pneumoconiosis. A pilot study on TCM syndrome differentiation can evaluate the clinical efficacy and safety of TCM and lay a foundation for further clinical research. A double-blind, randomized, and placebo-controlled trial was conducted for 24 weeks, in which 96 patients with pneumoconiosis were randomly divided into the control and treatment groups. Symptomatic treatment was conducted for the two groups. The treatment group was treated with TCM syndrome differentiation, and the control group was treated with placebo. The primary outcomes were the six-minute walking distance (6MWD) and the St. George Respiratory Questionnaire (SGRQ) score. The secondary outcomes were the modified British Medical Research Council Dyspnea Scale (mMRC), Chronic Obstructive Pulmonary Disease Assessment Test (CAT), Hospital Anxiety and Depression Scale (HADS), and pulmonary function. Only 83 patients from the 96 patients with pneumoconiosis finished the study. For the primary outcome, compared with the control groups, the treatment group showed a significantly increased 6MWD (407.90 m vs. 499.51 m; 95% confidence interval (CI) 47.25 to 135.97; P <0.001) and improved SGRQ total score (44.48 vs. 25.67; 95% CI −27.87 to −9.74; P <0.001). The treatment group also significantly improved compared with the control group on mMRC score (1.4 vs. 0.74; 95% CI −1.08 to −0.23; P =0.003), CAT score (18.40 vs. 14.65; 95% CI −7.07 to −0.43; P =0.027), and the total symptom score (7.90 vs. 5.14; 95% CI −4.40 to −1.12; P <0.001). No serious adverse events occurred. This study showed that TCM syndrome differentiation and treatment had a favorable impact on the exercise endurance and quality of life of patients with pneumoconiosis.

Keywords： pneumoconiosis     randomized controlled trials     traditional Chinese medicine    

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Discussion on the view of feeding patterns in new era’s family planning services

Yan Xiaoqing

Strategic Study of CAE 2014, Volume 16, Issue 5,   Pages 24-30

Abstract:

By selecting 109 cases of infants and their mothers for the survey，the article analyzes general reference volume，the impact of feeding-related factors as well as grass-roots demand for family planning services with SPSS18.0. It builds related people- satisfied websites，explores optimizing service way，explores the scientific and standardized service examination and evaluation system，enhances the grassroots family planning services level.

Keywords： feeding patterns     statistical analysis     family planning services    

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contributions of friction and plastic deformation to machined surface temperatures and residual stress patterns

Subhash ANURAG, Yuebin GUO,

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 3,   Pages 247-255 doi: 10.1007/s11465-010-0097-7

Abstract: Temperature on the machined surface is critical for surface integrity and the performance of a precision component. However, the temperature of a machined surface is challenging for in-situ measurement. Furthermore, the individual contribution of tool/work friction and plastic deformation of work materials to surface temperature is very difficult to quantify because the measured temperature is always the resultant temperature. This lack of understanding on the temperature distribution blocks the design of effective cutting tool geometries and materials to minimize surface temperature. This study provides a finite element method based on a predictive model to decouple the contributions of tool/work friction and material plastic deformation to surface temperature in a dry cutting process. The study shows that the plastic deformation of work material contributes to the majority of surface temperature, whereas the tool/work friction contribution is secondary. High temperatures are produced when more materials are plowed under the cutting edge. A large tool/work friction leads to higher surface temperatures, and the use of a cutting tool with physical properties in process simulation significantly improves the accuracy of predicted surface temperatures. Residual stress reversal from subsurface maximum residual to surface maximum residual stress may occur when tool/work friction increases.

Keywords： surface temperature     friction     residual stress     finite element analysis (FEA)     dry cutting     tool property    

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Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns

Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 2,   Pages 135-145 doi: 10.15302/J-FASE-2017143

Abstract: Knowledge of the spatial distribution of soil textural properties is important for determining soil moisture storage and soil hydraulic transport properties. Capturing field heterogeneity without exhaustive sampling and costly sample analysis is difficult. Our objective was to employ electromagnetic induction (EMI) mapping in low apparent electrical conductivity (EC ) soils at varying soil water contents to capture time invariant properties such as soil texture. Georeferenced EC measurements were taken using a ground conductivity meter on six different days where volumetric water content ( ) varied from 0.11 to 0.23. The 50 m × 50 m field included a subsurface gravelly patch in an otherwise homogeneous silt-loam alluvial soil. Ordinary block kriging predicted EC at unsampled areas to produce 1-m resolution maps. Temporal stability analysis was used to divide the field into three distinct EC regions. Subsequent ground-truthing confirmed the lowest conductivity region correlated with coarse textured soil parent materials associated with a former high-energy alluvial depositional area. Combining maps using temporal stability analysis gives the clearest image of the textural difference. These maps could be informative for modeling, experimental design, sensor placement and targeted zone management strategies in soil science, ecology, hydrology, and agricultural applications.

Keywords： soil electrical conductivity     soil texture mapping     temporal stability analysis    

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Optimal locations of monitoring stations in water distribution systems under multiple demand patterns

Shuming LIU, Wenjun LIU, Jinduan CHEN, Qi WANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 204-212 doi: 10.1007/s11783-011-0364-9

Abstract: flaw of demand coverage method in solving optimal monitoring stations problem under multiple demand patternseach demand pattern, and the impact of temporal distribution between different time periods or demand patternsthe DCI method can represent the water quality of water distribution systems under multiple demand patterns

Keywords： demand coverage     monitoring     optimization     water distribution network     water quality    

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Study on the Spatial Patterns of the Qinba Mountain Area Based on High-Speed Transportation Networks

Wu Tinghai and Zhang Neng

Strategic Study of CAE 2016, Volume 18, Issue 5,   Pages 52-59 doi: 10.15302/J-SSCAE-2016.05.008

Abstract: central cities in the Qinba Mountain Area to surrounding urban agglomerations, and determines the spatial patterns

Keywords： the Qinba Mountain Area     spatial patterns     high-speed transportation network     spatial planning     urban    

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Title Author Date Type Operation

Performance enhancement of partially shaded solar PV array using novel shade dispersion technique

Namani RAKESH,T. Venkata MADHAVARAM

Journal Article

Effects of riparian vegetation patterns on the distribution and potential loss of soil nutrients: a case

Erhui GUO,Liding CHEN,Ranhao SUN,Zhaoming WANG

Journal Article

Exploring the development of municipal solid waste disposal facilities in Chinese cities: patterns and

Journal Article

Optimal Su-Do-Ku based interconnection scheme for increased power output from PV array under partial shading

P. SRINIVASA RAO,P. DINESH,G. SARAVANA ILANGO,C. NAGAMANI

Journal Article

Microenvironmental time-activity patterns in Chongqing, China

Yu ZHAO, Shuxiao WANG, Gangcai CHEN, Fei WANG, Kristin AUNAN, Jiming HAO

Journal Article

Associations of sleeping patterns and isotemporal substitution of other behavior with the prevalence

Journal Article

Analysis of driving forces behind diversified carbon dioxide emission patterns in regions of the mainland

Xin TIAN, Hidefumi IMURA, Miao CHANG, Feng SHI, Hiroki TANIKAWA

Journal Article

Early-life famine exposure, adulthood obesity patterns, and risk of low-energy fracture

Journal Article

Social media and mobility landscape: Uncovering spatial patterns of urban human mobility with multi source

Yilan Cui, Xing Xie, Yi Liu

Journal Article

Clinical efficacy of comprehensive therapy based on traditional Chinese medicine patterns on patients

Journal Article

Discussion on the view of feeding patterns in new era’s family planning services

Yan Xiaoqing

Journal Article

contributions of friction and plastic deformation to machined surface temperatures and residual stress patterns

Subhash ANURAG, Yuebin GUO,

Journal Article

Electromagnetic induction mapping at varied soil moisture reveals field-scale soil textural patterns

Hiruy ABDU, David A. ROBINSON, Janis BOETTINGER, Scott B. JONES

Journal Article

Optimal locations of monitoring stations in water distribution systems under multiple demand patterns

Shuming LIU, Wenjun LIU, Jinduan CHEN, Qi WANG

Journal Article

Study on the Spatial Patterns of the Qinba Mountain Area Based on High-Speed Transportation Networks

Wu Tinghai and Zhang Neng

Journal Article