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Article ; Online: Nutrient uptake and assimilation in fragrant rosewood (Dalbergia odorifera T.C. Chen) seedlings in growing media with un-composted spent mushroom residue.

Li, Xiaowen / Xia, Haitao / Wang, Jinwang / Chen, Qiuxia

PloS one

2021 Volume 16, Issue 4, Page(s) e0249534

Abstract: The purpose of this study was to detect nutrient uptake and assimilation in woody plants subjected to growing media with some peat replaced by spent mushroom residue (SMR). Fragrant rosewood (Dalbergia odorifera T.C. Chen) seedlings were cultured in five ...

Abstract	The purpose of this study was to detect nutrient uptake and assimilation in woody plants subjected to growing media with some peat replaced by spent mushroom residue (SMR). Fragrant rosewood (Dalbergia odorifera T.C. Chen) seedlings were cultured in five types of growing media with SMR and peat in volumetric proportions of 0% (control), 25%, 50%, 75%, and 100%. With the increase of SMR proportion, ammonium- and nitrate-nitrogen (N) concentrations declined but available phosphorus (P) concentration and electrical conductance both increased. Seedlings in the full SMR substrates showed obvious mortality. Seedlings in substrates with SMR in proportions higher than 25% showed symptoms of excessive N and P toxicities. The utilization efficiency for P was highest in the 25% SMR growing-media. Mineral N in substrates had a positive relationship with growth and biomass but not with glutamine synthetase activity. Available P was negatively related with acid phosphatase activity in both leaves and roots. Un-composted SMR can replace 25% of peat in growing media for fragrant rosewood seedlings, benefitting P uptake and assimilation.
Language	English
Publishing date	2021-04-06
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0249534
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Molecular mechanism of salinity and waterlogging tolerance in mangrove

Liu, Huizi / An, Xia / Liu, Xing / Yang, Sheng / Liu, Yu / Wei, Xin / Li, Xiaowen / Chen, Qiuxia / Wang, Jinwang

Frontiers in plant science

2024 Volume 15, Page(s) 1354249

Abstract: Mangrove forests are colloquially referred to as "Earth's kidneys" and serve many important ecological and commercial functions. Salinity and waterlogging stress are the most important abiotic stressors restricting the growth and development of mangroves. ...

Abstract	Mangrove forests are colloquially referred to as "Earth's kidneys" and serve many important ecological and commercial functions. Salinity and waterlogging stress are the most important abiotic stressors restricting the growth and development of mangroves.
Language	English
Publishing date	2024-02-07
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2613694-6
ISSN	1664-462X
ISSN	1664-462X
DOI	10.3389/fpls.2024.1354249
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Detecting tiny objects in aerial images: A normalized Wasserstein distance and a new benchmark

Xu, Chang / Wang, Jinwang / Yang, Wen / Yu, Huai / Yu, Lei / Xia, Gui-Song

International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS) ISPRS journal of photogrammetry and remote sensing. 2022 Aug., v. 190

2022

Abstract: Tiny object detection (TOD) in aerial images is challenging since a tiny object only contains a few pixels. State-of-the-art object detectors do not provide satisfactory results on tiny objects due to the lack of supervision from discriminative features. ...

Abstract	Tiny object detection (TOD) in aerial images is challenging since a tiny object only contains a few pixels. State-of-the-art object detectors do not provide satisfactory results on tiny objects due to the lack of supervision from discriminative features. Our key observation is that the Intersection over Union (IoU) metric and its extensions are very sensitive to the location deviation of the tiny objects, which drastically deteriorates the quality of label assignment when used in anchor-based detectors. To tackle this problem, we propose a new evaluation metric dubbed Normalized Wasserstein Distance (NWD) and a new RanKing-based Assigning (RKA) strategy for tiny object detection. The proposed NWD-RKA strategy can be easily embedded into all kinds of anchor-based detectors to replace the standard IoU threshold-based one, significantly improving label assignment and providing sufficient supervision information for network training. Tested on four datasets, NWD-RKA can consistently improve tiny object detection performance by a large margin. Besides, observing prominent noisy labels in the Tiny Object Detection in Aerial Images (AI-TOD) dataset, we are motivated to meticulously relabel it and release AI-TOD-v2 and its corresponding benchmark. In AI-TOD-v2, the missing annotation and location error problems are considerably mitigated, facilitating more reliable training and validation processes. Embedding NWD-RKA into DetectoRS, the detection performance achieves 4.3 AP points improvement over state-of-the-art competitors on AI-TOD-v2. Datasets, codes, and more visualizations are available at: https://chasel-tsui.github.io/AI-TOD-v2/.
Keywords	aerial photography ; data collection ; detectors ; information networks ; journals ; photogrammetry ; product labeling ; remote sensing ; testing
Language	English
Dates of publication	2022-08
Size	p. 79-93.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1007774-1
ISSN	0924-2716
ISSN	0924-2716
DOI	10.1016/j.isprsjprs.2022.06.002
Database	NAL-Catalogue (AGRICOLA)

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Article: RNA-seq and phytohormone analysis reveals the culm color variation of

Jiao, Yulian / Zeng, Hu / Xia, Haitao / Wang, Yueying / Wang, Jinwang / Jin, Chuan

PeerJ

2022 Volume 10, Page(s) e12796

Abstract: Background: The clumping bamboo : Methods: Millions of clean reads were generated and assembled into 604,900 transcripts, and 383,278 unigenes were acquired with RNA-seq technology. The quantification of ABA, IAA, JA, GA: Results: Differential ... ...

Abstract	Background: The clumping bamboo Methods: Millions of clean reads were generated and assembled into 604,900 transcripts, and 383,278 unigenes were acquired with RNA-seq technology. The quantification of ABA, IAA, JA, GA Results: Differential expression analysis showed that 449 unigenes were differentially expressed genes (DEGs), among which 190 DEGs were downregulated and 259 DEGs were upregulated in
Language	English
Publishing date	2022-01-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	2703241-3
ISSN	2167-8359
ISSN	2167-8359
DOI	10.7717/peerj.12796
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Learning to Extract Building Footprints From Off-Nadir Aerial Images.

Wang, Jinwang / Meng, Lingxuan / Li, Weijia / Yang, Wen / Yu, Lei / Xia, Gui-Song

IEEE transactions on pattern analysis and machine intelligence

2022 Volume 45, Issue 1, Page(s) 1294–1301

Abstract: Extracting building footprints from aerial images is essential for precise urban mapping with photogrammetric computer vision technologies. Existing approaches mainly assume that the roof and footprint of a building are well overlapped, which may not ... ...

Abstract	Extracting building footprints from aerial images is essential for precise urban mapping with photogrammetric computer vision technologies. Existing approaches mainly assume that the roof and footprint of a building are well overlapped, which may not hold in off-nadir aerial images as there is often a big offset between them. In this paper, we propose an offset vector learning scheme, which turns the building footprint extraction problem in off-nadir images into an instance-level joint prediction problem of the building roof and its corresponding "roof to footprint" offset vector. Thus the footprint can be estimated by translating the predicted roof mask according to the predicted offset vector. We further propose a simple but effective feature-level offset augmentation module, which can significantly refine the offset vector prediction by introducing little extra cost. Moreover, a new dataset, Buildings in Off-Nadir Aerial Images (BONAI), is created and released in this paper. It contains 268,958 building instances across 3,300 aerial images with fully annotated instance-level roof, footprint, and corresponding offset vector for each building. Experiments on the BONAI dataset demonstrate that our method achieves the state-of-the-art, outperforming other competitors by 3.37 to 7.39 points in F1-score. The codes, datasets, and trained models are available at https://github.com/jwwangchn/BONAI.git.
Language	English
Publishing date	2022-12-05
Publishing country	United States
Document type	Journal Article
ISSN	1939-3539
ISSN (online)	1939-3539
DOI	10.1109/TPAMI.2022.3162583
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Ion recognition properties of 2,2'-bibenzimidazole regulated by ammonium-modified pillar[5]arenes.

Yao, Hong / Hu, Yin-Ping / Yang, Hao-Ran / Yang, Bao-Hong / Wang, Jin-Wang / Zhang, You-Ming / Wei, Tai-Bao / Lin, Qi

The Analyst

2023 Volume 148, Issue 6, Page(s) 1221–1226

Abstract: With the increasing issues of environmental degradation and health problem, the selective detection of toxic ions has attracted considerable attention from researchers. Chemical fluorescent sensors with the advantages of facile operation, high ... ...

Abstract	With the increasing issues of environmental degradation and health problem, the selective detection of toxic ions has attracted considerable attention from researchers. Chemical fluorescent sensors with the advantages of facile operation, high sensitivity, rapid response, and easy visualization are emerging as powerful detection tools towards ions. However, the selective recognition of ions is always hindered by the presence of other interfering substances. Herein, we show that supramolecular host-guest interaction based on a pillar[5]arene provides a new opportunity to regulate the ionic recognition properties of guest molecules. A pillar[5]arene-based host-guest complex HG was constructed through the host-guest interaction between ammonium functionalized pillar[5]arene (HAP5) and 2,2'-bibenzimidazole (G). The host-gust complex HG can realize the successive, highly selective, and sensitive detection of specific ions. It was found that only in the presence of HAP5, the sensitivity towards cations was evidently enhanced, and selective successive recognition for I
Language	English
Publishing date	2023-03-13
Publishing country	England
Document type	Journal Article
ZDB-ID	210747-8
ISSN	1364-5528 ; 0003-2654
ISSN (online)	1364-5528
ISSN	0003-2654
DOI	10.1039/d3an00095h
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Physiological and transcriptomic analysis of the mangrove species Kandelia obovata in response to flooding stress.

Liu, Shuangshuang / Yang, Sheng / Liu, Huizi / Hu, Qingdi / Liu, Xing / Wang, Jinwang / Wang, Jiayu / Xin, Wenzhen / Chen, Qiuxia

Marine pollution bulletin

2023 Volume 196, Page(s) 115598

Abstract: Flooding stress on mangroves is growing continually with rising sea level. In this study, the physiology and transcriptome of the mangrove species Kandelia obovata under flooding stress were analyzed. With increasing inundation time, malondialdehyde (MDA) ...

Abstract	Flooding stress on mangroves is growing continually with rising sea level. In this study, the physiology and transcriptome of the mangrove species Kandelia obovata under flooding stress were analyzed. With increasing inundation time, malondialdehyde (MDA), superoxide dismutase (SOD), glutathione (GSH), soluble sugar (SS), soluble protein (SP), and proline (Pro) content declined, while peroxidase (POD) and ascorbate peroxidase (APX) activity rose significantly. According to the KEGG pathway enrichment analysis, upregulated differentially expressed genes (DEGs) were enriched in the plant hormone signaling pathway. Furthermore, MYB44 and MYB108 genes from the MYB transcription factor family and RAP2.12, DREB2B, and ERF4 genes from the AP2/ERF family were up-regulated under flooding conditions. A strong correlation was established between the expression levels of 12 DEGs under flooding stress and RNA sequencing data and was verified by qRT-PCR. These results provide new insights into the molecular mechanism of K. obovata in response to flooding stress.
MeSH term(s)	Rhizophoraceae/metabolism ; Transcriptome ; Gene Expression Profiling ; Antioxidants/metabolism ; Superoxide Dismutase/metabolism ; Glutathione/metabolism ; Stress, Physiological
Chemical Substances	Antioxidants ; Superoxide Dismutase (EC 1.15.1.1) ; Glutathione (GAN16C9B8O)
Language	English
Publishing date	2023-10-13
Publishing country	England
Document type	Journal Article
ZDB-ID	2001296-2
ISSN	1879-3363 ; 0025-326X
ISSN (online)	1879-3363
ISSN	0025-326X
DOI	10.1016/j.marpolbul.2023.115598
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Development of an Autonomous Unmanned Aerial Manipulator Based on a Real-Time Oriented-Object Detection Method.

Lin, Shijie / Wang, Jinwang / Peng, Rui / Yang, Wen

Sensors (Basel, Switzerland)

2019 Volume 19, Issue 10

Abstract: Autonomous Unmanned Aerial Manipulators (UAMs) have shown promising potential in mobile 3-dimensional grasping applications, but they still suffer from some difficulties impeding their board applications, such as target detection and indoor positioning. ... ...

Abstract	Autonomous Unmanned Aerial Manipulators (UAMs) have shown promising potential in mobile 3-dimensional grasping applications, but they still suffer from some difficulties impeding their board applications, such as target detection and indoor positioning. For the autonomous grasping mission, the UAMs need ability to recognize the objects and grasp them. Considering the efficiency and precision, we present a novel oriented-object detection method called Rotation-SqueezeDet. This method can run on embedded-platforms in near real-time. Besides, this method can give the oriented bounding box of an object in images to enable a rotation-aware grasping. Based on this method, a UAM platform was designed and built. We have given the formulation, positioning, control, and planning of the whole UAM system. All the mechanical designs are fully provided as open-source hardware for reuse by the community. Finally, the effectiveness of the proposed scheme was validated in multiple experimental trials, highlighting its applicability of autonomous aerial rotational grasping in Global Positioning System (GPS) denied environments. We believe this system can be deployed to many potential workplaces which need UAM to accomplish difficult manipulation tasks.
Language	English
Publishing date	2019-05-25
Publishing country	Switzerland
Document type	Journal Article
ZDB-ID	2052857-7
ISSN	1424-8220 ; 1424-8220
ISSN (online)	1424-8220
ISSN	1424-8220
DOI	10.3390/s19102396
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: A Normalized Gaussian Wasserstein Distance for Tiny Object Detection

Wang, Jinwang / Xu, Chang / Yang, Wen / Yu, Lei

2021

Abstract: Detecting tiny objects is a very challenging problem since a tiny object only contains a few pixels in size. We demonstrate that state-of-the-art detectors do not produce satisfactory results on tiny objects due to the lack of appearance information. Our ...

Abstract	Detecting tiny objects is a very challenging problem since a tiny object only contains a few pixels in size. We demonstrate that state-of-the-art detectors do not produce satisfactory results on tiny objects due to the lack of appearance information. Our key observation is that Intersection over Union (IoU) based metrics such as IoU itself and its extensions are very sensitive to the location deviation of the tiny objects, and drastically deteriorate the detection performance when used in anchor-based detectors. To alleviate this, we propose a new evaluation metric using Wasserstein distance for tiny object detection. Specifically, we first model the bounding boxes as 2D Gaussian distributions and then propose a new metric dubbed Normalized Wasserstein Distance (NWD) to compute the similarity between them by their corresponding Gaussian distributions. The proposed NWD metric can be easily embedded into the assignment, non-maximum suppression, and loss function of any anchor-based detector to replace the commonly used IoU metric. We evaluate our metric on a new dataset for tiny object detection (AI-TOD) in which the average object size is much smaller than existing object detection datasets. Extensive experiments show that, when equipped with NWD metric, our approach yields performance that is 6.7 AP points higher than a standard fine-tuning baseline, and 6.0 AP points higher than state-of-the-art competitors. Codes are available at: https://github.com/jwwangchn/NWD. Comment: Codes are available at: https://github.com/jwwangchn/NWD. Its expanded work is accepted by the ISPRS J P & RS (https://www.sciencedirect.com/science/article/pii/S0924271622001599?dgcid=author)
Keywords	Computer Science - Computer Vision and Pattern Recognition
Subject code	006
Publishing date	2021-10-25
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Development and characterization of 29 InDel markers from the Mangrove Kandelia obovata genome using a resequencing dataset

Liu, Xing / Liu, Yu / Yang, Sheng / Wang, Jinwang / Lu, Xiang / Wei, Xin / Wang, Wenqing / Wang, Jiayu / Chen, Qiuxia

Conservation genetics resources. 2022 Sept., v. 14, no. 3

2022

Abstract: Insertion-deletion (InDel) markers are widely employed in genetic studies. The rapid advancement of DNA sequencing technology has enabled the development of a large number of InDel makers from the genomes of non-model plants to become more efficient and ... ...

Abstract	Insertion-deletion (InDel) markers are widely employed in genetic studies. The rapid advancement of DNA sequencing technology has enabled the development of a large number of InDel makers from the genomes of non-model plants to become more efficient and cost-effective. In this study, we identified 29 polymorphic InDel markers utilized in conservation genetics using the Kandelia obovata genome resequencing dataset. PIC values ranged from 0.186 to 0.375 while the values of Hₒ and Hₑ varied from 0.118 to 0.471 and from 0.208 to 0.500, respectively. To the best of our knowledge, this is by far the most extensive set of InDel markers generated for K. obovata. These markers might prove valuable to further the collective understanding of geographically distinct populations, evolutionary relationships, as well as the conservation genetics of K. obovata.
Keywords	DNA ; Kandelia ; conservation genetics ; cost effectiveness ; data collection ; genome ; sequence analysis
Language	English
Dates of publication	2022-09
Size	p. 263-266.
Publishing place	Springer Netherlands
Document type	Article
ZDB-ID	2508018-0
ISSN	1877-7260 ; 1877-7252
ISSN (online)	1877-7260
ISSN	1877-7252
DOI	10.1007/s12686-022-01272-5
Database	NAL-Catalogue (AGRICOLA)

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