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Performance analysis of visualmarkers for indoor navigation systems Article

Gaetano C. LA DELFA,Salvatore MONTELEONE,Vincenzo CATANIA,Juan F. DE PAZ,Javier BAJO

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 8,   Pages 730-740 doi: 10.1631/FITEE.1500324

Abstract: Internet of Things, and the exponential rise of location based services (LBSs) have made the problem of localizationIndoor positioning systems have a huge market in the retail sector and contextual advertising; in additionIn a previous paper, we proposed a technique for indoor localization and navigation using both Bluetoothfocused on specific case study of visual markers placed onto the tiles, to improve the efficiency of our indoorlocalization and navigation approach by choosing the best visual marker system.

Keywords： Indoor localization     Visual markers     Computer vision    

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Ahigh precision visual localization sensor and its workingmethodology for an indoor mobile robot

Feng-yu ZHOU,Xian-feng YUAN,Yang YANG,Zhi-fei JIANG,Chen-lei ZHOU

Frontiers of Information Technology & Electronic Engineering 2016, Volume 17, Issue 4,   Pages 365-374 doi: 10.1631/FITEE.1500272

Abstract: To overcome the shortcomings of existing robot localization sensors, such as low accuracy and poor robustnessFirst, the hardware system of the localization sensor is developed.The precision of the sensor is ±1.94 cm for position localization and ±1.64?for angle localization.Therefore, it satisfies perfectly the requirements of localization precision for an indoor mobile robot

Keywords： Mobile robot     Localization sensor     Visual localization     Infrared-reflective marker     Embedded system    

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Digital twin for healthy indoor environment: A vision for the post-pandemic era

Frontiers of Engineering Management 2023, Volume 10, Issue 2,   Pages 300-318 doi: 10.1007/s42524-022-0244-y

Abstract: Indoor environment has significant impacts on human health as people spend 90% of their time indoors.public health awareness have further elevated the urgency for cultivating and maintaining a healthy indoornew functionalities and services in smart building management, very few have focused on the health of indoorcritical need for understanding and envisaging how digital twin paradigms can be geared towards healthy indoorMoreover, this paper elaborates a vision for future research on integrated digital twins for a healthy indoor

Keywords： digital twin     healthy indoor environment     building information modeling     occupant–building interaction    

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Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 219-228 doi: 10.1007/s11783-014-0760-z

Abstract: Adsorption is the most widely used technology for the removal of indoor volatile organic compounds (VOCsadsorption and resistance to humidity has promising applications as a cost-effective adsorbent for indoor

Keywords： porous clay heterostructure     volatile organic compounds     adsorption     adsorbent     indoor air    

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Comparative analysis of impact of human occupancy on indoor microbiomes

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1383-1

Abstract:

• Exposure to indoor microbiomes is a public health concern in educational

Keywords： Built environment     Indoor microbiome     Occupant     Building     Sequencing    

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Relations between indoor and outdoor PM

Cong Liu, Yinping Zhang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1089-4

Abstract:

Factors impacting indoor-outdoor relations are introduced.itemcontent>

Particulate nitrate and ammonium desorb during outdoor-to-indooritemcontent>

OC load increases during the transport due to sorption of indoor

Keywords： Indoor air quality     Exposure     SVOC     Reactive oxidative species     Oxidative potential     Chemical transport model    

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Indoor carbonyl compounds in an academic building in Beijing, China: concentrations and influencing factors

Chuanjia JIANG, Pengyi ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 2,   Pages 184-194 doi: 10.1007/s11783-011-0309-3

Abstract: Carbonyl compounds in indoor air are of great concern for their adverse health effects.Average indoor concentrations of other carbonyls were below 10 μg·m .Principal component analysis identified a combined effect of common indoor carbonyl sources and ventilationon indoor carbonyl levels.The influence of human occupants on indoor carbonyl concentrations varies with environmental conditions

Keywords： carbonyl compounds     indoor air     ventilation     human occupancy     source emission rate (SER)     principal component    

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Robotized machining of big work pieces: Localization of supporting heads

Wojciech SZYNKIEWICZ, Teresa ZIELIŃSKA, Włodzimierz KASPRZAK

Frontiers of Mechanical Engineering 2010, Volume 5, Issue 4,   Pages 357-369 doi: 10.1007/s11465-010-0103-0

Abstract: A planner for a self adaptable and reconfigurable fixture system is proposed. The system is composed of mobile support agents that support thin sheet metal parts to minimize part dimensional deformation during drilling and milling operations. Compliant sheet metal parts are widely used in various manufacturing processes including automotive and aerospace industries. The main role of the planner is to generate an admissible plan of relocation of the mobile agents. It has to find the admissible locations for the supporting heads that provide continuous support in close proximity to the tool and trajectories of the mobile bases characterized by very high speeds during the relocation phases.

Keywords： fixture     robot     milling     drilling    

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Effect of natural resource on improving indoor thermal environment in Chongqing

Yong DING, Baizhan LI, Qing LUO, Hong LIU, Meng LIU

Frontiers of Structural and Civil Engineering 2009, Volume 3, Issue 2,   Pages 211-218 doi: 10.1007/s11709-009-0018-1

Abstract: This paper analyzes the potential of natural resources to improve the indoor thermal environment in Chongqing

Keywords： natural resource     indoor thermal environment     renewable energy    

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Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety

Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY

Frontiers of Engineering Management 2018, Volume 5, Issue 2,   Pages 227-239 doi: 10.15302/J-FEM-2018071

Abstract: Using images captured from indoor jobsites, this paper evaluates existing computer vision techniques,

Keywords： construction     safety     personal protective equipment     hardhat     computer vision    

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Optimal localization of complex surfaces in CAD-based inspection

XU Jinting, LIU Weijun, SUN Yuwen

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 4,   Pages 426-433 doi: 10.1007/s11465-008-0068-4

Abstract: Complex surface inspection requires the optimal localization of the measured surface related to the designThis paper presents a new technique for solving the localization problem.The basic approach consists of two steps: 1) rough localization of the measured points to the designsurface based on curvature features, which can produce a good initial estimate for the optimal localization; 2) fine localization based on the least-square principle so that the deviation between the measured

Keywords： deviation     comparison     non-linear     localization     inspection    

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Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

Frontiers of Structural and Civil Engineering 2010, Volume 4, Issue 2,   Pages 208-222 doi: 10.1007/s11709-010-0025-2

Abstract: This paper presents a numerical investigation on the strain localization of an idealized sand in biaxialexamined to illustrate the link between microscopic and macroscopic variables in the case of strain localizationThe study shows that strain localization of the granular material in the tests proceeds with localizations

Keywords： idealized sand     strain localization     numerical analyses     distinct element method (DEM)    

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Lipin3 leads to hypertriglyceridemia and obesity by disrupting the expression and nucleocytoplasmic localization

Frontiers of Medicine doi: 10.1007/s11684-023-1003-0

Abstract: Lipin proteins including Lipin 1–3 act as transcriptional co-activators and phosphatidic acid phosphohydrolase enzymes, which play crucial roles in lipid metabolism. However, little is known about the function of Lipin3 in triglyceride (TG) metabolism. Here, we identified a novel mutation (NM_001301860: p.1835A>T/p.D612V) of Lipin3 in a large family with hypertriglyceridemia (HTG) and obesity through whole-exome sequencing and Sanger sequencing. Functional studies revealed that the novel variant altered the half-life and stability of the Lipin3 protein. Hence, we generated Lipin3 heterozygous knockout (Lipin3-heKO) mice and cultured primary hepatocytes to explore the pathophysiological roles of Lipin3 in TG metabolism. We found that Lipin3-heKO mice exhibited obvious obesity, HTG, and non-alcoholic fatty liver disorder. Mechanistic study demonstrated that the haploinsufficiency of Lipin3 in primary hepatocytes may induce the overexpression and abnormal distribution of Lipin1 in cytosol and nucleoplasm. The increased expression of Lipin1 in cytosol may contribute to TG anabolism, and the decreased Lipin1 in nucleoplasm can reduce PGC1α, further leading to mitochondrial dysfunction and reduced TG catabolism. Our study suggested that Lipin3 was a novel disease-causing gene inducing obesity and HTG. We also established a relationship between Lipin3 and mitochondrial dysfunction.

Keywords： Lipin3     Lipin1     hypertriglyceridemia     obesity     mitochondrial dysfunction    

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Particle size distributions, PM

Can DONG, Lingxiao YANG, Chao YAN, Qi YUAN, Yangchun YU, Wenxing WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 55-65 doi: 10.1007/s11783-012-0411-1

Abstract: this study, we collected particles with aerodynamic diameter≤2.5 μm (PM ) from three different public indoorBoth indoor and outdoor PM levels (102.3–143.8 μg·m and 160.2–301.3 μg·m , respectively) were substantiallyWorld Health Organization (25 μg·m ), and outdoor sources were found to be the major contributors to indoorConcentrations of indoor and outdoor PM were shown to exhibit the same variation trends for the supermarketAmong others, , and were found to be the dominant water-soluble ions of both indoor and outdoor

Keywords： indoor air quality     indoor/outdoor ratios     size distributions     particles with aerodynamic diameter≤2.5 μm    

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Yield-height correlation and QTL localization for plant height in two lowland switchgrass populations

Shiva O. MAKAJU, Yanqi WU, Michael P. ANDERSON, Vijaya G. KAKANI, Michael W. SMITH, Linglong LIU, Hongxu DONG, Dan CHANG

Frontiers of Agricultural Science and Engineering 2018, Volume 5, Issue 1,   Pages 118-128 doi: 10.15302/J-FASE-2018201

Abstract: Switchgrass ( L.), as a model herbaceous crop species for bioenergy production, is targeted to improve biomass yield and feedstock quality. Plant height is a major component contributing to biomass yield. Accordingly, the objectives of this research were to analyze phenotypic variation for biomass and plant height and the association between them and to localize associated plant height QTLs. Two lowland switchgrass mapping populations, one selfed and another hybrid population established in the field at Perkins and Stillwater, Oklahoma, were deployed in the experiment for two years post establishment. Large genetic variation existed for plant biomass and height within the two populations. Plant height was positively correlated with biomass yield in the selfed population ( = 0.39, <0.0001) and the hybrid population ( = 0.41, <0.0001). In the selfed population, a joint analysis across all environments revealed 10 QTLs and separate analysis for each environment, collectively revealed 39 QTLs related to plant height. In the hybrid population, the joint analysis across overall environments revealed 35 QTLs and the separate analysis for each environment revealed 38 QTLs. The findings of this research contribute new information about the genetic control for plant height and will be useful for future plant breeding and genetic improvement programs in lowland switchgrass.

Keywords： yield-height     QTL localization     lowland switchgrass    

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Title Author Date Type Operation

Performance analysis of visualmarkers for indoor navigation systems

Gaetano C. LA DELFA,Salvatore MONTELEONE,Vincenzo CATANIA,Juan F. DE PAZ,Javier BAJO

Journal Article

Ahigh precision visual localization sensor and its workingmethodology for an indoor mobile robot

Feng-yu ZHOU,Xian-feng YUAN,Yang YANG,Zhi-fei JIANG,Chen-lei ZHOU

Journal Article

Digital twin for healthy indoor environment: A vision for the post-pandemic era

Journal Article

Optimized porous clay heterostructure for removal of acetaldehyde and toluene from indoor air

Pu ZHAO,Lizhong ZHU

Journal Article

Comparative analysis of impact of human occupancy on indoor microbiomes

Journal Article

Relations between indoor and outdoor PM

Cong Liu, Yinping Zhang

Journal Article

Indoor carbonyl compounds in an academic building in Beijing, China: concentrations and influencing factors

Chuanjia JIANG, Pengyi ZHANG

Journal Article

Robotized machining of big work pieces: Localization of supporting heads

Wojciech SZYNKIEWICZ, Teresa ZIELIŃSKA, Włodzimierz KASPRZAK

Journal Article

Effect of natural resource on improving indoor thermal environment in Chongqing

Yong DING, Baizhan LI, Qing LUO, Hong LIU, Meng LIU

Journal Article

Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety

Bahaa Eddine MNEYMNEH, Mohamad ABBAS, Hiam KHOURY

Journal Article

Optimal localization of complex surfaces in CAD-based inspection

XU Jinting, LIU Weijun, SUN Yuwen

Journal Article

Strain localization analyses of idealized sands in biaxial tests by distinct element method

Mingjing JIANG, Hehua ZHU, Xiumei LI,

Journal Article

Lipin3 leads to hypertriglyceridemia and obesity by disrupting the expression and nucleocytoplasmic localization

Journal Article

Particle size distributions, PM

Can DONG, Lingxiao YANG, Chao YAN, Qi YUAN, Yangchun YU, Wenxing WANG

Journal Article

Yield-height correlation and QTL localization for plant height in two lowland switchgrass populations

Shiva O. MAKAJU, Yanqi WU, Michael P. ANDERSON, Vijaya G. KAKANI, Michael W. SMITH, Linglong LIU, Hongxu DONG, Dan CHANG

Journal Article