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Article ; Online: Electron Probe Microanalysis of Hf and Ti in Zircon

LI Xiaoli

Yankuang ceshi, Vol 42, Iss 1, Pp 89-

Significance and Advantage

2023 Volume 101

Abstract: BACKGROUND Zircon is an important refractory mineral that is ubiquitous in most magmatic, metamorphic and sedimentary rocks. It can provide robust U-Pb age(s) for most geologic processes. The trace elements in zircon are of great importance in the ... ...

Abstract	BACKGROUND Zircon is an important refractory mineral that is ubiquitous in most magmatic, metamorphic and sedimentary rocks. It can provide robust U-Pb age(s) for most geologic processes. The trace elements in zircon are of great importance in the interpretation of zircon U-Pb age and relevant geological significance. Commonly, the trace elements abundance in zircon is analyzed by mass spectrometry methods, such as laser ablation inductively coupled plasma-mass spectrometry (LA-ICP-MS), sensitive high-resolution ion microprobe (SHRIMP) and others, which usually require a large spot diameter (10-50μm). Electron probe micro-analyzer (EPMA) is capable of conducting elemental quantitative analyses at micro scales (< 5μm) with relatively high spatial resolution and analytical accuracy/precision. Under appropriate analytical condition settings, the detection limit (D.L.) and analytical uncertainty (standard deviation) of EPMA can be comparable to other high-sensitive methods (e.g. LA-ICP-MS) with only a small difference of one order of magnitude. Besides, EPMA is an accessible instrument in most facilities and is much cheaper and efficient than other techniques. Hafnium is an important trace element in zircon that often substitutes the zirconium ion, since they possess almost the same effective ionic radius in the eightfold coordination, and the zircon has a complete solid solution with the hafnon (HfSiO4). The Hf abundance in zircon is of importance in the zircon U-Pb age interpretation, and so is the Zr/Hf ratio—it commonly relates with magmatic differentiation: the higher Hf or lower Zr/Hf ratio domain is indicative of zircon growth from a more fractionated melt. Besides, the Hf-related geochemistry is also informative of certain tectonic settings, in which zircon formed. Titanium is an important temperature sensor in zircon that can be utilized in the crystallization temperature estimate. The Ti cation prefers to substitute Si in the four-fold coordination instead of replacing the eightfold Zr in the zircon ...
Keywords	zircon ; trace element hf and ti ; zr/hf ratio ; electron microprobe analyzer ; quantitative analyses ; Geology ; QE1-996.5 ; Ecology ; QH540-549.5
Subject code	550
Language	English
Publishing date	2023-01-01T00:00:00Z
Publisher	Science Press, PR China
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A KD-tree and random sample consensus-based 3D reconstruction model for 2D sports stadium images.

Li, Xiaoli

Mathematical biosciences and engineering : MBE

2023 Volume 20, Issue 12, Page(s) 21432–21450

Abstract: The application of 3D reconstruction technology in building images has been a novel research direction. In such scenes, the reconstruction with proper building details remains challenging. To deal with this issue, I propose a KD-tree and random sample ... ...

Abstract	The application of 3D reconstruction technology in building images has been a novel research direction. In such scenes, the reconstruction with proper building details remains challenging. To deal with this issue, I propose a KD-tree and random sample consensus-based 3D reconstruction model for 2D building images. Specifically, the improved KD-tree algorithm with the random sampling consistency algorithm has a better matching rate for the two-dimensional image data extraction of the stadium scene. The number of discrete areas in the stadium scene increases with the increase in the number of images. The sparse 3D models can be transformed into dense 3D models to some extent using the screening method. In addition, we carry out some simulation experiments to assess the performance of the proposed algorithm in this paper in terms of stadium scenes. The results reflect that the error of the proposal is significantly lower than that of the comparison algorithms. Therefore, it is proven that the proposal can be well-suitable for 3D reconstruction in building images.
Language	English
Publishing date	2023-12-21
Publishing country	United States
Document type	Journal Article
ZDB-ID	2265126-3
ISSN	1551-0018 ; 1551-0018
ISSN (online)	1551-0018
ISSN	1551-0018
DOI	10.3934/mbe.2023948
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Deep-Learning-Guided Student Classroom Action Understanding for Preschool Education.

Li, Xiaoli

publication RETRACTED

Applied bionics and biomechanics

2022 Volume 2022, Page(s) 9416467

Abstract: A deep architecture for enhancing students' action recognition is proposed to improve preschool education. This paper seamlessly combines the teaching objectives, teaching scope, teaching implementation, and breeding evaluation status of preschool ... ...

Abstract	A deep architecture for enhancing students' action recognition is proposed to improve preschool education. This paper seamlessly combines the teaching objectives, teaching scope, teaching implementation, and breeding evaluation status of preschool breeding practice theory. We attempt to solve the problem of effective preschool teaching, based on which we propose the simple adaptation strategies. We further evaluate the practice of preschool breeding and its effectiveness. In this way, civilized and high-quality preschool talents will be cultivated, and preschool educational experiences will be promoted. In the method of promoting the preschool culture of weak-aged children, owing to the problem that the traditional action recognition algorithm can indicate the specific students' actions, an action recognition method based on the combination of deep integration and human skeleton representation is proposed. First, the connected spatial locations and constraints are fed into a long-short-specified recall (LSTM) mode with a spatially and temporally aware algorithm which is designed to obtain spatiotemporal feature and highly separable deep joint features. Afterward, a new mechanism is introduced to resolve keyframes as well as the joints. Finally, based on the two-stream deep architecture, the effective discrimination of similar actions is achieved by integrating the color and shape features into the skeleton features by designing the deep model. Extensive experiments have demonstrated that, compared with the mainstream algorithms, this method can effectively distinguish students' action types in the classroom of homogeneous preschool children. Thus, we can substantially improve the efficiency of preschool teaching.
Language	English
Publishing date	2022-08-08
Publishing country	Egypt
Document type	Journal Article ; Retracted Publication
ZDB-ID	2179924-6
ISSN	1754-2103 ; 1176-2322
ISSN (online)	1754-2103
ISSN	1176-2322
DOI	10.1155/2022/9416467
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Article ; Online: Ultrasound Biomicroscopy Diagnosis Analysis and Fine Care of Anterior Segment Injury of Traumatic Anterior Chamber Based on Intelligent Virtual Reality Technology.

Li, Xiaoli

publication RETRACTED

Journal of healthcare engineering

2021 Volume 2021, Page(s) 9930686

Abstract: The front part of the eye is exposed to the surface of the body, making it susceptible to injury. Blunt eye injuries often destroy the tissue structure in the anterior part of the eye. Often there is detachment of the iris root, separation of the ciliary ...

Abstract	The front part of the eye is exposed to the surface of the body, making it susceptible to injury. Blunt eye injuries often destroy the tissue structure in the anterior part of the eye. Often there is detachment of the iris root, separation of the ciliary body, the angle of retraction of the chamber, and complete dislocation or subluxation of the lens. Ordinary ocular ultrasound can penetrate into opaque tissue, but because of its low resolution, it can only show its outline, which is still very small for doctors in assisting diagnosis. Ultrasonic biomicroscopy is a very real-time analysis, will not be affected by the refraction space, and has great application value for ocular trauma. Based on this, this article proposes the ultrasound biomicroscope diagnosis analysis and fine nursing research of traumatic anterior chamber injury based on intelligent virtual reality technology. This article describes literature methods, experimental analysis methods, and other methods, in-depth study of the causes of traumatic anterior injuries, ultrasound biomicroscopy, and other theoretical knowledge, ultrasound biomicroscopy and microcontrol experiments for traumatic anterior injury design, and finally the causes of eye damage. This study compares the pairing results of ultrasound biomicroscopy biological measurements, analyzes the relationship between anterior bleeding level and anterior ocular injury, and analyzes the outcome and extent of service ophthalmology. The angle retreat accounted for 52.17% in grade I, 72.22% in grade II, and 60% in grade III. Anterior bleeding can cause single or complex iris root detachment, iris root detachment, ciliary body detachment, and angular leakage. The more the bleeding, the more serious the eye damage.
MeSH term(s)	Anterior Chamber/diagnostic imaging ; Ciliary Body/diagnostic imaging ; Eye Injuries/diagnostic imaging ; Humans ; Microscopy, Acoustic ; Technology ; Virtual Reality
Language	English
Publishing date	2021-05-11
Publishing country	England
Document type	Journal Article ; Retracted Publication
ZDB-ID	2545054-2
ISSN	2040-2309 ; 2040-2295
ISSN (online)	2040-2309
ISSN	2040-2295
DOI	10.1155/2021/9930686
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Article ; Online: Remote sensing image segmentation with regionalized fuzzy clustering based on Voronoi tessellation

LI Xiaoli

Acta Geodaetica et Cartographica Sinica, Vol 49, Iss 6, Pp 799-

2020 Volume 799

Keywords	Mathematical geography. Cartography ; GA1-1776
Language	Chinese
Publishing date	2020-06-01T00:00:00Z
Publisher	Surveying and Mapping Press
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Preoperative 3D reconstruction and fluorescent indocyanine green for laparoscopic duodenum preserving pancreatic head resection: A case report.

Li, Xiao-Li / Gong, Lian-Sheng

World journal of clinical cases

2023 Volume 11, Issue 4, Page(s) 903–908

Abstract: Background: Duodenum-preserving pancreatic head resection (DPPHR) is the choice of surgery for benign or low-grade malignant tumors of the pancreatic head. Laparoscopic DPPHR (LDPPHR) procedure can be improved by preoperative 3D model reconstruction and ...

Abstract	Background: Duodenum-preserving pancreatic head resection (DPPHR) is the choice of surgery for benign or low-grade malignant tumors of the pancreatic head. Laparoscopic DPPHR (LDPPHR) procedure can be improved by preoperative 3D model reconstruction and the use of intravenous indocyanine green fluorescent before surgery for real-time navigation with fluorescent display to guide the surgical dissection and prevention of from injury to vessels and biliary tract. Case summary: Here we report the successful short- and long-term outcomes after one year following LDPPHR for a 60-year lady who had an uneventful recovery and was discharged home one week after the surgery. Conclusion: There was no bile leakage or pancreatic leakage or delayed gastric emptying. The histopathology report showed multiple cysts in the pancreatic head and localized pancreatic intraepithelial tumor lesions. The resected margin was free of tumor.
Language	English
Publishing date	2023-02-03
Publishing country	United States
Document type	Case Reports
ISSN	2307-8960
ISSN	2307-8960
DOI	10.12998/wjcc.v11.i4.903
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Article ; Online: Microbially induced calcite precipitation and synergistic mineralization cementation mechanism of Pisha sandstone components.

Feng, Zhuojun / Li, Xiaoli

The Science of the total environment

2023 Volume 866, Page(s) 161348

Abstract: Soil erosion is a key problem of erosion in Pisha sandstone areas, and microbially induced calcium carbonate deposition is a bioconsolidation technique with soil improvement potential. There is more limited information available on the uniformity of the ... ...

Abstract	Soil erosion is a key problem of erosion in Pisha sandstone areas, and microbially induced calcium carbonate deposition is a bioconsolidation technique with soil improvement potential. There is more limited information available on the uniformity of the distribution of microbially induced calcium carbonate precipitation mediated by Pisha sandstone grains and on the influence of mineral composition on calcium carbonate bonding mechanisms. In this study, the curing mechanism of Pisha sandstone particles under the microbially induced calcium carbonate deposition technique was investigated by unconfined compressive strength tests, X-ray diffraction spectroscopy, scanning electron microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis. The results showed that the self-adsorption biphasic injection method was effective in regulating the homogeneous distribution of microorganisms, and the addition of an additive solvent promoted the homogeneous distribution of bacteria, but the contribution to the mechanical properties was not obvious when urea was used as an additive solvent. The analysis revealed that montmorillonite on the surface of Pisha sandstone particles had an adsorption effect on the bacteria. In addition, the microorganisms induced the transformation of the montmorillonite phase to the illite phase during the biological treatment. Combined Fourier transform infrared spectroscopy and thermogravimetric analysis revealed that the CO bond in biogenic calcium carbonate, the SiO bond in Pisha sandstone particles, undergoes intermolecular hydrogen bonding under the modulating effect of the metabolites of microorganisms, and the anionic coordinating group of the extracellular polymer can form a stronger electrostatic interaction with calcium ions, requiring more energy for decomposition. This work provides a case study of microbially induced calcite deposition to improve loose Pisha sandstone, and at the same time, it is not difficult to see how Pisha sandstone particles, as weakly cemented sands, could be a suitable vehicle for a potential microbial consolidation process.
Language	English
Publishing date	2023-01-01
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2022.161348
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Article ; Online: Riemannian Manifold-Based Feature Space and Corresponding Image Clustering Algorithms.

Zhao, Xuemei / Li, Chen / Wu, Jun / Li, Xiaoli

IEEE transactions on neural networks and learning systems

2024 Volume 35, Issue 2, Page(s) 2680–2693

Abstract: Image feature representation is a key factor influencing the accuracy of clustering. Traditional point-based feature spaces represent spectral features of an image independently and introduce spatial relationships of pixels in the image domain to enhance ...

Abstract	Image feature representation is a key factor influencing the accuracy of clustering. Traditional point-based feature spaces represent spectral features of an image independently and introduce spatial relationships of pixels in the image domain to enhance the contextual information expression ability. Mapping-based feature spaces aim to preserve the structure information, but the complex computation and the unexplainability of image features have a great impact on their applications. To this end, we propose an explicit feature space called Riemannian manifold feature space (RMFS) to present the contextual information in a unified way. First, the Gaussian probability distribution function (pdf) is introduced to characterize the features of a pixel in its neighborhood system in the image domain. Then, the feature-related pdfs are mapped to a Riemannian manifold, which constructs the proposed RMFS. In RMFS, a point can express the complex contextual information of corresponding pixel in the image domain, and pixels representing the same object are linearly distributed. This gives us a chance to convert nonlinear image segmentation problems to linear computation. To verify the superiority of the expression ability of the proposed RMFS, a linear clustering algorithm and a fuzzy linear clustering algorithm are proposed. Experimental results show that the proposed RMFS-based algorithms outperform their counterparts in the spectral feature space and the RMFS-based ones without the linear distribution characteristics. This indicates that the RMFS can better express features of an image than spectral feature space, and the expressed features can be easily used to construct linear segmentation models.
Language	English
Publishing date	2024-02-05
Publishing country	United States
Document type	Journal Article
ISSN	2162-2388
ISSN (online)	2162-2388
DOI	10.1109/TNNLS.2022.3190836
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Article ; Online: Massive retroperitoneal hematoma caused by intercostal artery bleeding after blunt trauma: a case report.

Zhu, Ran / Liu, Xiangtian / Li, Xiaoli / Ye, Liping

Journal of cardiothoracic surgery

2024 Volume 19, Issue 1, Page(s) 248

Abstract: Background: The occurrence of massive retroperitoneal hematoma caused by intercostal artery bleeding is exceedingly uncommon.: Case presentation: A middle-aged male presented to the hospital after a fall. Computed tomography scan revealed a massive ... ...

Abstract	Background: The occurrence of massive retroperitoneal hematoma caused by intercostal artery bleeding is exceedingly uncommon. Case presentation: A middle-aged male presented to the hospital after a fall. Computed tomography scan revealed a massive retroperitoneal hematoma without any evidence of organ or major vessel rupture. The angiogram revealed extravasation from a branch of the twelfth intercostal artery, and successful transcatheter arterial embolization was performed on this specific artery. Conclusions: The possibility of intercostal artery rupture should be considered in cases of retroperitoneal hematomas, and accurate diagnosis can be achieved through imaging studies. Transcatheter arterial embolization represents an effective treatment modality.
MeSH term(s)	Middle Aged ; Male ; Humans ; Hematoma/etiology ; Arteries ; Angiography ; Embolization, Therapeutic/methods ; Gastrointestinal Hemorrhage ; Wounds, Nonpenetrating/complications
Language	English
Publishing date	2024-04-18
Publishing country	England
Document type	Case Reports ; Journal Article
ZDB-ID	2227224-0
ISSN	1749-8090 ; 1749-8090
ISSN (online)	1749-8090
ISSN	1749-8090
DOI	10.1186/s13019-024-02739-2
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Article ; Online: Bronchoscopic Intervention for Tracheobronchopathia Osteochondroplastica: A Report of Two Cases.

Wang, Yue / Li, Xiaoli / Zhang, Jieli / Zhou, Yunzhi

The Laryngoscope

2024

Abstract: Tracheobronchopathia osteochondroplastica (TO) is an uncommon non-malignant tracheal ailment characterized by the existence of numerous bone and/or cartilage nodules in the submucosa of the trachea and bronchi. At present, there is a lack of standardized ...

Abstract	Tracheobronchopathia osteochondroplastica (TO) is an uncommon non-malignant tracheal ailment characterized by the existence of numerous bone and/or cartilage nodules in the submucosa of the trachea and bronchi. At present, there is a lack of standardized treatment recommendations for TO. This article presents two instances of severe tracheal stenosis caused by TO, which were effectively managed through the implementation of bronchoscopic stent placement and rigid bronchoscopy curettage, respectively. Both cases exhibited favorable outcomes, providing novel insights and references for the treatment of TO. Laryngoscope, 2024.
Language	English
Publishing date	2024-01-25
Publishing country	United States
Document type	Case Reports
ZDB-ID	80180-x
ISSN	1531-4995 ; 0023-852X
ISSN (online)	1531-4995
ISSN	0023-852X
DOI	10.1002/lary.31284
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