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The new design concept of being human-centered and emphasizing the organic construction of the ecological environment is progressively gaining popularity because of the growing influence of ecology, green building, and environmental protection theories. By examining the landscape architecture of colleges and universities, this study aims to investigate the principles of ecological and environmental protection and to advance the development of the ecological environment on campus. As a result, this study uses Jilin Communications Polytechnic as an example to discuss the state of the research on campus landscape design in Jilin province and its significance, examines the process of campus landscape design under the concept of ecological and environmental protection after introducing the study object, assessment indexes, and constituent aspects of campus landscape design. The findings indicate that the ecological protection concept-based landscape design mode exhibits the vitality of ecological landscape design, produces significant ecological benefits for university campuses, and significantly enhances the ecological environment of university campuses. This paper reconstructs the gradually disappearing natural landscape system of the university campus, effectively promotes the healthy development of university campus ecology, emphasizes the ecological design with inherent cultural connotation and esthetic significance, and fully demonstrates the vitality of ecological landscape design, thus creating great ecological benefits for a university campus, effectively improving the ecological environment of university campus, and providing reference for further research on campus landscape design of Jilin province under the concept of ecological environmental protection. [ABSTRACT FROM AUTHOR]

Optical remote sensing videos, as a new source of remote sensing data that has emerged in recent years, have significant potential in remote sensing applications, especially national defense. In this paper, a tracking pipeline named TDNet (tracking while detecting based on a neural network) is proposed for optical remote sensing videos based on a correlation filter and deep neural networks. The pipeline is used to simultaneously track ships and planes in videos. There are many target tracking methods for general video data, but they suffer some difficulties in remote sensing videos with low resolution and those influenced by weather conditions. The tracked targets are usually misty. Therefore, in TDNet, we propose a new multi-target tracking method called MT-KCF and a detecting-assisted tracking (i.e., DAT) module to improve tracking accuracy and precision. Meanwhile, we also design a new target recognition (i.e., NTR) module to recognise newly emerged targets. In order to verify the performance of TDNet, we compare our method with several state-of-the-art tracking methods on optical video remote sensing data sets acquired from the Jilin No. 1 satellite. The experimental results demonstrate the effectiveness and the state-of-the-art performance of the proposed method. The proposed method can achieve more than 90% performance in terms of precision for single-target tracking tasks and more than 85% performance in terms of MOTA for multi-object tracking tasks. [ABSTRACT FROM AUTHOR]

[Display omitted] • The Bainaimiao arc belt has a tectonic affinity different from the North China Craton. • The Precambrian basement of the Bainaimiao arc belt is laterally heterogeneous. • The Bainaimiao arc belt is an early Paleozoic composite arc system. As an important part of the southeastern boundary of the Central Asian Orogenic Belt (CAOB), the Bainaimiao arc belt, particularly its tectonic affinity and Precambrian basement composition, is an important element to provide new insights about the crustal growth of the CAOB. However, these remain poorly understood. This paper presents new geochronological, whole-rock geochemical and zircon Hf isotope data on early Paleozoic intrusive rocks from the Bainaimiao arc belt in the southeastern CAOB. The Ordovician gabbroic diorites in the Zhengxiangbaiqi area of the western Bainaimiao arc belt have low SiO 2 contents (51.73–54.82 wt%), high TiO 2 (0.99–1.07 wt%) and TFe 2 O 3 contents (9.68–9.89 wt%), depletions in Nb, Ta and Ti, and positive ε Hf (t) values (6.8–11.3). These rocks generated from partial melting of a mantle wedge that has been metasomatized by subducted-derived fluids. The Silurian monzogranites in the Zhengxiangbaiqi area have high contents of SiO 2 (72.61–75.12 wt%) and K 2 O (2.75–4.12 wt%), positive ε Hf (t) values (0.7–9.3) and abundant Precambrian inherited zircons. These monzogranites originated from partial melting of the thickened juvenile crustal components with significant ancient crustal contamination. The Silurian granites and granodiorites in the Faku area of the eastern Bainaimiao arc belt are characterized by high Na 2 O contents (4.00–4.52 wt%), high Sr/Y ratios, low MgO (1.15–1.74 wt%) and K 2 O contents (0.52–1.42 wt%), low K 2 O/Na 2 O ratios, and positive ε Hf (t) values ranging from 0.6 to 8.1. These rocks were derived from partial melting of a subducted slab interacted with mantle peridotite. New zircon U-Pb-Hf isotope data from these early Paleozoic intrusive rocks combined with previous results indicate that the Precambrian basement of the Bainaimiao arc belt is laterally heterogeneous, with Neoarchean-Paleoproterozoic basement beneath the western Bainaimiao arc belt and Paleo-Mesoproterozoic basement beneath the central Jilin area in the eastern Bainaimiao arc belt. The Bainaimiao arc belt has a tectonic affinity different from the North China Craton (NCC) and represents a composite arc system consisting of an ensialic island arc with a basement composition similar to that of the Precambrian microcontinents in the CAOB in the Bayan Obo-Damaoqi-Bainaimiao-Zhengxiangbaiqi and central Jilin areas and an oceanic island arc in the Ongniud-Faku and southern Jilin areas. The involvement of composite arc systems in the amalgamation of the accretionary orogenic belt could be an important mechanism for crustal growth in the CAOB. [ABSTRACT FROM AUTHOR]