Works matching AU Gielis, Johan

Results: 59

Editorial: Flourishing in arid realms: exploring the adaptation of plant functional traits to drought environments.

Published in:

Frontiers in Plant Science, 2025, p. 1, doi. 10.3389/fpls.2025.1627814

By:

Gao, Jie;
Kim, Kyung-Min;
Gielis, Johan;
Liu, Weiguo

Publication type:

Article

Plant Morphology and Function, Geometric Morphometrics, and Modelling: Decoding the Mathematical Secrets of Plants.

Published in:

Plants (2223-7747), 2023, v. 12, n. 21, p. 3724, doi. 10.3390/plants12213724

By:

Gao, Jie;
Huang, Weiwei;
Gielis, Johan;
Shi, Peijian

Publication type:

Article

Inequality Measure of Leaf Area Distribution for a Drought-Tolerant Landscape Plant.

Published in:

Plants (2223-7747), 2023, v. 12, n. 17, p. 3143, doi. 10.3390/plants12173143

By:

Huang, Lichao;
Ratkowsky, David A.;
Hui, Cang;
Gielis, Johan;
Lian, Meng;
Yao, Weihao;
Li, Qiying;
Zhang, Liuyue;
Shi, Peijian

Publication type:

Article

Comparison of Two Simplified Versions of the Gielis Equation for Describing the Shape of Bamboo Leaves.

Published in:

Plants (2223-7747), 2022, v. 11, n. 22, p. 3058, doi. 10.3390/plants11223058

By:

Yao, Weihao;
Niinemets, Ülo;
Yao, Wenjing;
Gielis, Johan;
Schrader, Julian;
Yu, Kexin;
Shi, Peijian

Publication type:

Article

Quantifying the Variation in the Geometries of the Outer Rims of Corolla Tubes of Vinca major L.

Published in:

Plants (2223-7747), 2022, v. 11, n. 15, p. 1987, doi. 10.3390/plants11151987

By:

Wang, Lin;
Miao, Qinyue;
Niinemets, Ülo;
Gielis, Johan;
Shi, Peijian

Publication type:

Article

A geometrical model for testing bilateral symmetry of bamboo leaf with a simplified Gielis equation.

Published in:

Ecology & Evolution (20457758), 2016, v. 6, n. 19, p. 6798, doi. 10.1002/ece3.2407

By:

Lin, Shuyan;
Zhang, Li;
Reddy, Gadi V. P.;
Hui, Cang;
Gielis, Johan;
Ding, Yulong;
Shi, Peijian

Publication type:

Article

Comparison of dwarf bamboos ( Indocalamus sp.) leaf parameters to determine relationship between spatial density of plants and total leaf area per plant.

Published in:

Ecology & Evolution (20457758), 2015, v. 5, n. 20, p. 4578, doi. 10.1002/ece3.1728

By:

Shi, Pei-Jian;
Xu, Qiang;
Sandhu, Hardev S.;
Gielis, Johan;
Ding, Yu-Long;
Li, Hua-Rong;
Dong, Xiao-Bo

Publication type:

Article

Nonlinear Dispersive Model of Electroporation for Irregular Nucleated Cells.

Published in:

Bioelectromagnetics, 2019, v. 40, n. 5, p. 331, doi. 10.1002/bem.22197

By:

Chiapperino, Michele Alessandro;
Bia, Pietro;
Caratelli, Diego;
Gielis, Johan;
Mescia, Luciano;
Dermol‐Černe, Janja;
Miklavčič, Damijan

Publication type:

Article

Scaling relationships between the total number of leaves and the total leaf area per culm of two dwarf bamboo species.

Published in:

Ecology & Evolution (20457758), 2024, v. 14, n. 7, p. 1, doi. 10.1002/ece3.70002

By:

Wang, Chengkang;
Heng, Yi;
Xu, Qingwei;
Zhou, Yajun;
Sun, Xuyang;
Wang, Yuchong;
Yao, Weihao;
Lian, Meng;
Li, Qiying;
Zhang, Liuyue;
Niinemets, Ülo;
Hölscher, Dirk;
Gielis, Johan;
Niklas, Karl J.;
Shi, Peijian

Publication type:

Article

Universal Natural Shapes: From Unifying Shape Description to Simple Methods for Shape Analysis and Boundary Value Problems.

Published in:

PLoS ONE, 2012, v. 7, n. 9, p. 1, doi. 10.1371/journal.pone.0029324

By:

Gielis, Johan;
Caratelli, Diego;
Fougerolle, Yohan;
Ricci, Paolo Emilio;
Tavkelidze, Ilia;
Gerats, Tom;
Ravasi, Timothy

Publication type:

Article

THE ROBIN PROBLEM FOR THE HELMHOLTZ EQUATION IN A THREE-DIMENSIONAL STARLIKE DOMAIN.

Published in:

Applied Mathematics, Informatics & Mechanics, 2016, v. 21, n. 1, p. 5

By:

Caratelli, Diego;
Gielis, Johan;
Ricci, Paolo E.

Publication type:

Article

A NOTE ON REPRESENTING DIMENSIONS.

Published in:

Reports of Enlarged Sessions of Seminar of I. Vekua Institute of Applied Mathematics, 2023, n. 7, p. 14

By:

Gielis, Johan

Publication type:

Article

ABOUT SOME METHODS OF ANALYTIC REPRESENTATION AND CLASSIFICATION OF A WIDE SET OF GEOMETRIC FIGURES WITH “COMPLEX” CONFIGURATION.

Published in:

Reports of Enlarged Sessions of Seminar of I. Vekua Institute of Applied Mathematics, 2020, n. 34, p. 81

By:

Tavkhelidze, Ilia;
Gielis, Johan;
Pinelas, Sandra

Publication type:

Article

THE MÖBIUS PHENOMENON IN GENERALIZED MÖBIUS-LISTING BODIES WITH CROSS SECTIONS OF ODD AND EVEN POLYGONS.

Published in:

Reports of Enlarged Sessions of Seminar of I. Vekua Institute of Applied Mathematics, 2020, n. 34, p. 23

By:

Gielis, Johan;
Tavkhelidze, Ilia

Publication type:

Article

STRUCTURE OF THE "dm-KNIVES" AND PROCESS OF CUTTING OF GMLn m OR GRTnm BODIES.

Published in:

Reports of Enlarged Sessions of Seminar of I. Vekua Institute of Applied Mathematics, 2019, n. 33, p. 70

By:

Tavkhelidze, Ilia;
Gielis, Johan

Publication type:

Article

THE PROCESS OF CUTTING GMLnm BODIES WITH dm-KNIVES ⋆.

Published in:

Reports of Enlarged Sessions of Seminar of I. Vekua Institute of Applied Mathematics, 2018, n. 32, p. 67

By:

Tavkhelidze, Ilia;
Gielis, Johan

Publication type:

Article

ON MEANS, POLYNOMIALS AND SPECIAL FUNCTIONS.

Published in:

Teaching of Mathematics, 2014, v. 17, n. 1, p. 1

By:

Gielis, Johan;
Verhulst, Rik;
Caratelli, Diego;
Ricci, Paolo E.;
Tavkhelidze, Ilia

Publication type:

Article

Comparison of the performance of two polar equations in describing the geometries of elliptical fruits.

Published in:

Botany Letters, 2024, v. 171, n. 3, p. 337, doi. 10.1080/23818107.2024.2350014

By:

Yao, Weihao;
Hui, Cang;
Wang, Lin;
Wang, Jinfeng;
Gielis, Johan;
Shi, Peijian

Publication type:

Article

Evidence that Chinese white olive (Canarium album (Lour.) DC.) fruits are solids of revolution.

Published in:

Botany Letters, 2024, v. 171, n. 1, p. 109, doi. 10.1080/23818107.2023.2238020

By:

Wang, Lin;
Shi, Peijian;
Chen, Long;
Gielis, Johan;
Niklas, Karl J.

Publication type:

Article

Stomatal shape described by a superellipse in four Magnoliaceae species.

Published in:

Botany Letters, 2024, v. 171, n. 1, p. 93, doi. 10.1080/23818107.2023.2234443

By:

Li, Qiying;
Niklas, Karl J.;
Niinemets, Ülo;
Zhang, Liuyue;
Yu, Kexin;
Gielis, Johan;
Gao, Jie;
Shi, Peijian

Publication type:

Article

A generalized performance equation and its application in measuring the Gini index of leaf size inequality.

Published in:

Trees: Structure & Function, 2023, v. 37, n. 5, p. 1555, doi. 10.1007/s00468-023-02448-8

By:

Lian, Meng;
Shi, Peijian;
Zhang, Liuyue;
Yao, Weihao;
Gielis, Johan;
Niklas, Karl J.

Publication type:

Article

Leaf area–length allometry and its implications in leaf shape evolution.

Published in:

Trees: Structure & Function, 2019, v. 33, n. 4, p. 1073, doi. 10.1007/s00468-019-01843-4

By:

Shi, Peijian;
Liu, Mengdi;
Ratkowsky, David A.;
Gielis, Johan;
Su, Jialu;
Yu, Xiaojing;
Wang, Ping;
Zhang, Lifang;
Lin, Zhiyi;
Schrader, Julian

Publication type:

Article

A simple way to calculate the volume and surface area of avian eggs.

Published in:

Annals of the New York Academy of Sciences, 2023, v. 1524, n. 1, p. 118, doi. 10.1111/nyas.15000

By:

Shi, Peijian;
Chen, Long;
Quinn, Brady K.;
Yu, Kexin;
Miao, Qinyue;
Guo, Xuchen;
Lian, Meng;
Gielis, Johan;
Niklas, Karl J.

Publication type:

Article

'biogeom': An R package for simulating and fitting natural shapes.

Published in:

Annals of the New York Academy of Sciences, 2022, v. 1516, n. 1, p. 123, doi. 10.1111/nyas.14862

By:

Shi, Peijian;
Gielis, Johan;
Quinn, Brady K.;
Niklas, Karl J.;
Ratkowsky, David A.;
Schrader, Julian;
Ruan, Honghua;
Wang, Lin;
Niinemets, Ülo

Publication type:

Article

Comparison of a universal (but complex) model for avian egg shape with a simpler model.

Published in:

Annals of the New York Academy of Sciences, 2022, v. 1514, n. 1, p. 34, doi. 10.1111/nyas.14799

By:

Shi, Peijian;
Gielis, Johan;
Niklas, Karl J.

Publication type:

Article

Electromagnetic modeling and design of a novel class of complementary split‐ring resonators.

Published in:

International Journal of RF & Microwave Computer-Aided Engineering, 2019, v. 29, n. 4, p. N.PAG, doi. 10.1002/mmce.21582

By:

Rubio Martínez‐Dueñas, Enrique J.;
Moreno de Jong van Coevorden, Carlos;
Stukach, Oleg V.;
Panokin, Nikolay V.;
Gielis, Johan;
Caratelli, Diego

Publication type:

Article

Editorial: The adaptation, plasticity and extinction of forest plants to climate change: mechanisms behind the morphological, physiological, phenological and ecological traits.

Published in:

Frontiers in Ecology & Evolution, 2024, p. 1, doi. 10.3389/fevo.2024.1488465

By:

Huang, Weiwei;
Gielis, Johan;
Shi, Peijian

Publication type:

Article

Design of Electroporation Process in Irregularly Shaped Multicellular Systems.

Published in:

Electronics (2079-9292), 2019, v. 8, n. 1, p. 37, doi. 10.3390/electronics8010037

By:

Mescia, Luciano;
Chiapperino, Michele Alessandro;
Bia, Pietro;
Lamacchia, Claudio Maria;
Gielis, Johan;
Caratelli, Diego

Publication type:

Article

A New Approach to Circular Inversion in l 1 -Normed Spaces.

Published in:

Symmetry (20738994), 2024, v. 16, n. 7, p. 874, doi. 10.3390/sym16070874

By:

Ermiş, Temel;
Şen, Ali Osman;
Gielis, Johan

Publication type:

Article

A New Program to Estimate the Parameters of Preston's Equation, a General Formula for Describing the Egg Shape of Birds.

Published in:

Symmetry (20738994), 2023, v. 15, n. 1, p. 231, doi. 10.3390/sym15010231

By:

Shi, Peijian;
Wang, Lin;
Quinn, Brady K.;
Gielis, Johan

Publication type:

Article

Effects of the Numerical Values of the Parameters in the Gielis Equation on Its Geometries.

Published in:

Symmetry (20738994), 2022, v. 14, n. 12, p. 2475, doi. 10.3390/sym14122475

By:

Wang, Lin;
Ratkowsky, David A.;
Gielis, Johan;
Ricci, Paolo Emilio;
Shi, Peijian

Publication type:

Article

Evidence That Supertriangles Exist in Nature from the Vertical Projections of Koelreuteria paniculata Fruit.

Published in:

Symmetry (20738994), 2022, v. 14, n. 1, p. 23, doi. 10.3390/sym14010023

By:

Li, Yuping;
Quinn, Brady K.;
Gielis, Johan;
Li, Yirong;
Shi, Peijian

Publication type:

Article

A Superellipse with Deformation and Its Application in Describing the Cross-Sectional Shapes of a Square Bamboo.

Published in:

Symmetry (20738994), 2020, v. 12, n. 12, p. 2073, doi. 10.3390/sym12122073

By:

Huang, Weiwei;
Li, Yueyi;
Niklas, Karl J.;
Gielis, Johan;
Ding, Yongyan;
Cao, Li;
Shi, Peijian

Publication type:

Article

The Generalized Gielis Geometric Equation and Its Application.

Published in:

Symmetry (20738994), 2020, v. 12, n. 4, p. 645, doi. 10.3390/sym12040645

By:

Shi, Peijian;
Ratkowsky, David A.;
Gielis, Johan

Publication type:

Article

Bamboo - The plant and its uses.

Published in:

2015

By:

Gielis, Johan

Publication type:

Book Review

The IXth World Bamboo Congress 2012.

Published in:

2012

By:

Gielis, Johan

Publication type:

Proceeding

Carbon Flux and Carbon Stock in a Bamboo Stand and their Relevance for Mitigating Climate Change.

Published in:

Bamboo Science & Culture, 2011, v. 24, n. 1, p. 1

By:

Düking, Raimund;
Gielis, Johan;
Liese, Walter

Publication type:

Article

Prof. BANG-YEN CHEN: FIRST SIMON STEVIN PRIZE FOR GEOMETRY.

Published in:

Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics, 2008, v. 1, n. 50, p. 161

By:

Gielis, Johan

Publication type:

Article

Can Leaf Shape be Represented by the Ratio of Leaf Width to Length? Evidence from Nine Species of Magnolia and Michelia (Magnoliaceae).

Published in:

Forests (19994907), 2021, v. 12, n. 1, p. 41, doi. 10.3390/f12010041

By:

Shi, Peijian;
Yu, Kexin;
Niinemets, Ülo;
Gielis, Johan

Publication type:

Article

Proportional Relationship between Leaf Area and the Product of Leaf Length and Width of Four Types of Special Leaf Shapes.

Published in:

Forests (19994907), 2019, v. 10, n. 2, p. 178, doi. 10.3390/f10020178

By:

Shi, Peijian;
Liu, Mengdi;
Yu, Xiaojing;
Gielis, Johan;
Ratkowsky, David A.

Publication type:

Article

A General Leaf Area Geometric Formula Exists for Plants—Evidence from the Simplified Gielis Equation.

Published in:

Forests (19994907), 2018, v. 9, n. 11, p. 714, doi. 10.3390/f9110714

By:

Shi, Peijian;
Ratkowsky, David A.;
Li, Yang;
Zhang, Lifang;
Lin, Shuyan;
Gielis, Johan

Publication type:

Article

A NEW BEGINNING, SYMMETRY IN TRANSFORMATION.

Published in:

Symmetry: Culture & Science, 2025, v. 36, n. 1, p. 5, doi. 10.26830/symmetry_2025_1_005

By:

Brasili, Simone;
Gielis, Johan

Publication type:

Article

SYMMETRY IN ALL DIMENSIONS: A CELEBRETATION OF INTERDISCIPLINARY YEAR OF EXPLORATION.

Published in:

2024

By:

Brasili, Simone;
Gielis, Johan

Publication type:

Editorial

PITCH AND TIMBRE OF SUPERSHAPE OSCILLATORS.

Published in:

Symmetry: Culture & Science, 2024, v. 35, n. 3, p. 299, doi. 10.26830/symmetry_2024_3_299

By:

Chapman, Dominik;
Bunyard, Rexleigh;
Gielis, Johan

Publication type:

Article

UNIVERSAL NATURAL SHAPES AND THEIR SYMMETRIES.

Published in:

Symmetry: Culture & Science, 2024, v. 35, n. 3, p. 237, doi. 10.26830/symmetry_2024_3_237

By:

Gielis, Johan

Publication type:

Article

LEANING SYMMETRY: BRIDGING SCIENCE, EDUCATION, AND CULTURE.

Published in:

Symmetry: Culture & Science, 2024, v. 35, n. 3, p. 231, doi. 10.26830/symmetry_2024_3_231

By:

Gielis, Johan

Publication type:

Article

INTERDISCIPLINARY INSIGHTS AND INSPIRATIONS OF SYMMETRY.

Published in:

2024

By:

Brasili, Simone;
Gielis, Johan

Publication type:

Editorial

LEGACY AND INNOVATION ACROSS SYMMETRY'S DIMENSIONS.

Published in:

2024

By:

Brasili, Simone;
Gielis, Johan

Publication type:

Editorial

GYÖRGY DARVAS: A LIFE IN SYMMETRY.

Published in:

Symmetry: Culture & Science, 2023, v. 34, n. 4, p. 355, doi. 10.26830/symmetry_2023_4_355

By:

Brasili, Simone;
Gielis, Johan

Publication type:

Article

TIME HYBRIDS: A NEW GENERIC THEORY OF REALITY.

Published in:

2023

By:

Gielis, Johan

Publication type:

Book Review