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Article ; Online: Understanding the Driving Factors for Urban Human Settlement Vitality at Street Level

He Liu / Xueming Li

Land, Vol 11, Iss 646, p

A Case Study of Dalian, China

2022 Volume 646

Abstract: Vitality can effectively test the quality of regional space, put forward the concept of urban human settlement vitality, and explore the development status of urban human settlement vitality space, which is of great significance in promoting the high- ... ...

Abstract	Vitality can effectively test the quality of regional space, put forward the concept of urban human settlement vitality, and explore the development status of urban human settlement vitality space, which is of great significance in promoting the high-quality development of urban human settlements. By constructing an evaluation index system of urban human settlement vitality and comprehensively using projection pursuit models, spatial correlation analysis, and spatial measurement models, the spatial pattern and influencing factors of the vitality of urban human settlements in the four districts of Dalian were studied. The results are as follows: (1) The spatial differentiation characteristics of the vitality of urban human settlements in Dalian are remarkable. Overall, it gradually decreased from the city center to the administrative boundary. (2) The spatial dependence of the vitality of urban human settlements among regions is relatively strong, with a more obvious “Matthew effect”. Among them, urban human settlement vitality hot spots were mainly distributed in the southeast of Dalian, showing a concentrated distribution trend, while the cold spots were distributed in the northern fringe area of Dalian, with spatial homogeneity characteristics. (3) Topography, ecological environment, social economy, commercial development, spatial structure, spatial form, regional scale, etc. have different impacts on the vitality of urban human settlements.
Keywords	vitality ; human settlements ; projection pursuit model ; spatial distribution ; four districts of Dalian ; Agriculture ; S
Subject code	910 ; 720
Language	English
Publishing date	2022-04-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Highly Strong, Tough, and Cryogenically Adaptive Hydrogel Ionic Conductors via Coordination Interactions

Zhuomin Wang / Siheng Wang / Lei Zhang / He Liu / Xu Xu

Research, Vol

2024 Volume 7

Abstract: Despite the promise of high flexibility and conformability of hydrogel ionic conductors, existing polymeric conductive hydrogels have long suffered from compromises in mechanical, electrical, and cryoadaptive properties due to monotonous functional ... ...

Abstract	Despite the promise of high flexibility and conformability of hydrogel ionic conductors, existing polymeric conductive hydrogels have long suffered from compromises in mechanical, electrical, and cryoadaptive properties due to monotonous functional improvement strategies, leading to lingering challenges. Here, we propose an all-in-one strategy for the preparation of poly(acrylic acid)/cellulose (PAA/Cel) hydrogel ionic conductors in a facile yet effective manner combining acrylic acid and salt-dissolved cellulose, in which abundant zinc ions simultaneously form strong coordination interactions with the two polymers, while free solute salts contribute to ionic conductivity and bind water molecules to prevent freezing. Therefore, the developed PAA/Cel hydrogel simultaneously achieved excellent mechanical, conductive, and cryogenically adaptive properties, with performances of 42.5 MPa for compressive strength, 1.6 MPa for tensile strength, 896.9% for stretchability, 9.2 MJ m−3 for toughness, 59.5 kJ m−2 for fracture energy, and 13.9 and 6.2 mS cm−1 for ionic conductivity at 25 and −70 °C, respectively. Enabled by these features, the resultant hydrogel ionic conductor is further demonstrated to be assembled as a self-powered electronic skin (e-skin) with high signal-to-noise ratio for use in monitoring movement and physiological signals regardless of cold temperatures, with hinting that could go beyond high-performance hydrogel ionic conductors.
Keywords	Science ; Q
Subject code	660
Language	English
Publishing date	2024-01-01T00:00:00Z
Publisher	American Association for the Advancement of Science
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: The Spatial and Temporal Evolution Pattern and Influencing Factors of Urban Human Settlement Resilience in Three Provinces of Northeast China

Jianjun Liu / Xueming Li / He Liu / Yishan Song

Land, Vol 12, Iss 12, p

2023 Volume 2161

Abstract: It is widely recognized that urban resilience is one of the core goals of urban development. As an important part of a city, the resilience level of urban human settlements directly affects the development trend of urban resilience. However, at present, ... ...

Abstract	It is widely recognized that urban resilience is one of the core goals of urban development. As an important part of a city, the resilience level of urban human settlements directly affects the development trend of urban resilience. However, at present, research results on the resilience of urban human settlements are very rare, are mainly concentrated in the central region of China, and rarely take into account the economically backward northeastern region. Therefore, in order to better improve the anti-risk ability of the urban human settlement environment system in three provinces of Northeast China, fully implement the strategic goal of “Comprehensive Revitalization of Northeast China”, and achieve high-quality urban development, this paper focuses on 34 prefecture-level cities in three provinces of Northeast China and proposes an urban human settlement resilience evaluation system with 36 indicators in five dimensions, namely, the natural system, human system, housing system, supporting system, and social system. Using the entropy weight method, the Dagum Gini coefficient, and a geographical probe model, the changes in the resilience level of each city from 2005 to 2020 were measured, and the urban living environment was assessed in terms of the adaptability and resilience of the development level in each subsystem based on the temporal and spatial evolution law and its influencing factors. The following conclusions were drawn: (1) The development level of urban human settlement resilience in the three provinces in Northeast China showed an N-shaped development trend from 2005 to 2020, but the regional differences were significant, and the overall spatial pattern was “high in the south and low in the north”. (2) In terms of the overall difference, the overall difference in urban human settlement resilience in the three northeastern provinces of China was small: the inter-regional difference was the main source of the difference, and the intra-regional difference was the secondary source. The regional ...
Keywords	resilience of urban human settlements ; space–time evolution ; influencing factors ; three provinces in Northeast China ; Agriculture ; S
Subject code	910
Language	English
Publishing date	2023-12-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Analysis and Research on Rice Disease Identification Method Based on Deep Learning

He Liu / Yuduo Cui / Jiamu Wang / Helong Yu

Sustainability, Vol 15, Iss 9321, p

2023 Volume 9321

Abstract: Rice is one of the most important food crops in China and around the world. However, with the continuous transformation of human activities, the quality of climate, soil, and water sources has also changed, and disease affecting rice has become ... ...

Abstract	Rice is one of the most important food crops in China and around the world. However, with the continuous transformation of human activities, the quality of climate, soil, and water sources has also changed, and disease affecting rice has become increasingly serious. Traditional artificial pest identification methods have been unable to adapt to the occurrence of a large number of diseases, and artificial naked eye identification also increases the uncertainty of the identification results, and cannot “suit the remedy to the case”, which will not cure the disease, or even achieve half the result with half the effort. In the incidence range of rice diseases, rice blast, rice false smut, and bacterial blight have the highest incidence rate, the greatest harm, and are the most representative. Therefore, this paper mainly focuses on the above three categories. In this paper, the identification of rice diseases is further studied. First, sample pictures of rice blast, rice false smut, and bacterial leaf blight diseases are collected. Due to the differences in the distance and light of the sample photos, their size and angle is biased. Therefore, some means are needed to unify the specifications of these images, so as to improve the efficiency of network model recognition. Neural network recognition needs to absorb many sample images to classify and learn features. The main research objects of this paper are rice blast, rice false smut, and bacterial wilt. Therefore, this paper also expands the data set for this kind of disease, and unifies the specifications through size cutting, angle change, and vertical symmetrical mirror image processing. Then, we built a new network model based on deep learning to realize the parameter initialization design. The accuracy of the rice disease identification model built at the beginning does not satisfy the practical requirements. In order to upgrade the model in depth, this experiment increases the entry point of analysis and research, and integrates four parameters: iteration ...
Keywords	rice ; disease recognition ; deep learning ; convolutional neural network ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
Subject code	006
Language	English
Publishing date	2023-06-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Feature extraction using multi-view video analytics for dairy cattle body weight estimation

He Liu / Amy R. Reibman / Jacquelyn P. Boerman

Smart Agricultural Technology, Vol 6, Iss , Pp 100359- (2023)

2023

Abstract: Accurate body weight (BW) estimation of livestock provides valuable information about animal health and welfare and can be used to assess changes in nutrient status of individuals or groups of animals. To obtain BW information regularly, automated low- ... ...

Abstract	Accurate body weight (BW) estimation of livestock provides valuable information about animal health and welfare and can be used to assess changes in nutrient status of individuals or groups of animals. To obtain BW information regularly, automated low-cost methods that do not intrude upon normal farm operation are essential. Measurements of BW from 196 lactating, Holstein dairy cattle were collected across 5 days (655 +/- 77.1 kg; range 458 - 876 kg). This population of animals was used to develop a BW estimation system for dairy cattle using a synchronized two-camera system. The system applies deep-learning models and domain knowledge to both camera views to estimate BW of dairy cattle despite challenges such as occluding fences and crowded backgrounds. Videos from side and front-view were used to extract features about the anatomical locations and shape of the individual cows, and a regression model was applied to the features for BW prediction. We demonstrate that each view provides valuable information for BW estimation, where combining two views outperforms either view separately. This is despite the side view having distractors such as occluding fences and crowded backgrounds. The experimental results, applied to videos captured within the constraints of an operating dairy farm, demonstrate a root-mean-squared prediction error of 34 kg and a mean absolute percentage error of 4.1%, when a Random Forest is trained on four days of data and tested on the fifth unseen day. This model enabled 57% of cattle BW to be estimated within 25 kg of their measured BW. In addition, we demonstrated that linear regression generalized well to unseen data.
Keywords	Dairy cattle ; Video analytics ; Body weight estimation ; Agriculture (General) ; S1-972 ; Agricultural industries ; HD9000-9495
Subject code	310
Language	English
Publishing date	2023-12-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Targeting drug-resistant mutations in ALK.

He, Liu / Dar, Arvin C

Nature cancer

2022 Volume 3, Issue 6, Page(s) 659–661

MeSH term(s)	Anaplastic Lymphoma Kinase/genetics ; Carcinoma, Non-Small-Cell Lung/genetics ; Humans ; Lung Neoplasms/genetics ; Mutation
Chemical Substances	Anaplastic Lymphoma Kinase (EC 2.7.10.1)
Language	English
Publishing date	2022-06-17
Publishing country	England
Document type	Journal Article ; Comment
ISSN	2662-1347
ISSN (online)	2662-1347
DOI	10.1038/s43018-022-00390-1
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Meta-synthesis of qualitative studies on patient perceptions and requirements during the perioperative period of robotic surgery.

Wu, Shuang / Yang, Chunzhi / He, Liu / Hu, Zhixuan / Yao, Jie

Journal of robotic surgery

2024 Volume 18, Issue 1, Page(s) 44

Abstract: This research undertakes a comprehensive evaluation and amalgamation of patient experiences and requirements during the perioperative period of robot-assisted surgery (RS), with the goal of enriching clinical practice with patient-centered insights. A ... ...

Abstract	This research undertakes a comprehensive evaluation and amalgamation of patient experiences and requirements during the perioperative period of robot-assisted surgery (RS), with the goal of enriching clinical practice with patient-centered insights. A meta-synthesis was performed and reported according to the preferred reporting Items for systematic reviews and meta-analyses and the enhancing transparency in reporting the synthesis of qualitative research statement. A rigorous literature search was conducted across multiple Chinese and English databases, namely PubMed, CINAHL (EBSCO), Embase, Web of Science, Scopus, China Biomedical Literature Database (CBLD), China National Knowledge Infrastructure (CNKI), Wanfang Data, and VIP Information. This study incorporated ten qualitative studies, the outcomes were classified into three overarching themes: personalized patient requirements related to RS; the psychological and physiological experiences of patients; and the divergent perceptions of male and female patients regarding RS. Greater emphasis needs to be placed on patient comprehension of RS, augmenting focus on patient psychological experiences, recognizing unique patient needs at various stages of RS, and providing patients with specialized knowledge and technical support.
MeSH term(s)	Humans ; Motivation ; Patients ; Perioperative Period ; Qualitative Research ; Robotic Surgical Procedures/methods
Language	English
Publishing date	2024-01-19
Publishing country	England
Document type	Journal Article ; Meta-Analysis ; Review
ZDB-ID	2268283-1
ISSN	1863-2491 ; 1863-2483
ISSN (online)	1863-2491
ISSN	1863-2483
DOI	10.1007/s11701-023-01791-9
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: The Influence of Subjective and Objective Characteristics of Urban Human Settlements on Residents’ Life Satisfaction in China

Xueming Li / He Liu

Land, Vol 10, Iss 1400, p

2021 Volume 1400

Abstract: Under the guidance of people-oriented development concepts, improving residents’ life satisfaction has gradually become the goal of urban governance. Based on Chinese household tracking survey data and national socio-economic statistics, this study used ... ...

Abstract	Under the guidance of people-oriented development concepts, improving residents’ life satisfaction has gradually become the goal of urban governance. Based on Chinese household tracking survey data and national socio-economic statistics, this study used the entropy method, multi-layer linear regression model and geographically weighted regression model and discusses the spatial heterogeneity of the impact of objective environmental characteristics and subjective perceived characteristics of urban residential environments on residents’ life satisfaction. It is of great importance to study the mechanisms through which subjective and objective characteristics of urban human settlements influence living satisfaction among residents. It is also important to discuss how to improve living satisfaction levels through the urban human settlements and to realize high-quality urban development. The research results show that in 2018, the overall level of life satisfaction among Chinese urban residents was relatively high. However, it is still necessary to continue to optimize the urban human settlements to improve residents’ life satisfaction. The objective characteristics of the urban human settlements, such as natural environmental comfort and environmental health, have a significant positive impact on residents’ life satisfaction. Residents’ subjective perceptions of government integrity, environmental protection, wealth gap, social security, medical conditions and medical level, as well as residents’ individual gender, age and health status also have a significant impact on residents’ life satisfaction. The direction and intensity of effects of different elements of the urban human settlements and residents’ personal attributes on urban residents’ life satisfaction have different characteristics in different regions.
Keywords	human settlements ; subjective perception ; life satisfaction ; multilevel linear regression model ; China ; Agriculture ; S
Subject code	710
Language	English
Publishing date	2021-12-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Biomaterial scaffolds in maxillofacial bone tissue engineering

Xiangya Huang / Yaxin Lou / Yihong Duan / He Liu / Jun Tian / Ya Shen / Xi Wei

Bioactive Materials, Vol 33, Iss , Pp 129-

A review of recent advances

2024 Volume 156

Abstract: Maxillofacial bone defects caused by congenital malformations, trauma, tumors, and inflammation can severely affect functions and aesthetics of maxillofacial region. Despite certain successful clinical applications of biomaterial scaffolds, ideal bone ... ...

Abstract	Maxillofacial bone defects caused by congenital malformations, trauma, tumors, and inflammation can severely affect functions and aesthetics of maxillofacial region. Despite certain successful clinical applications of biomaterial scaffolds, ideal bone regeneration remains a challenge in maxillofacial region due to its irregular shape, complex structure, and unique biological functions. Scaffolds that address multiple needs of maxillofacial bone regeneration are under development to optimize bone regeneration capacity, costs, operational convenience. etc. In this review, we first highlight the special considerations of bone regeneration in maxillofacial region and provide an overview of the biomaterial scaffolds for maxillofacial bone regeneration under clinical examination and their efficacy, which provide basis and directions for future scaffold design. Latest advances of these scaffolds are then discussed, as well as future perspectives and challenges. Deepening our understanding of these scaffolds will help foster better innovations to improve the outcome of maxillofacial bone tissue engineering.
Keywords	Biomaterial scaffolds ; Maxillofacial region ; Bone regeneration ; Tissue engineering ; Materials of engineering and construction. Mechanics of materials ; TA401-492 ; Biology (General) ; QH301-705.5
Subject code	616
Language	English
Publishing date	2024-03-01T00:00:00Z
Publisher	KeAi Communications Co., Ltd.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Functionalized biomimetic mineralized collagen promotes osseointegration of 3D-printed titanium alloy microporous interface

Xiao Sheng / He Liu / Yu Xu / Zhonghan Wang / Weimin Zhang / Chen Li / Jincheng Wang

Materials Today Bio, Vol 24, Iss , Pp 100896- (2024)

2024

Abstract: Mineralized collagen (MC) is the fundamental unit of natural bone tissue and can induce bone regeneration. Unmodified MC has poor mechanical properties and a single component, making it unable to cope with complex physiological environment. In this study, ...

Abstract	Mineralized collagen (MC) is the fundamental unit of natural bone tissue and can induce bone regeneration. Unmodified MC has poor mechanical properties and a single component, making it unable to cope with complex physiological environment. In this study, we introduced sodium alginate (SA) and vascular endothelial growth factor (VEGF) into the MC material to construct functionalized mineralized collagen (FMC) with good mechanical strength and the ability to continuously release growth factors. The FMC is filled into the pores of 3D printed titanium alloy scaffold to form a new organic-inorganic bioactive interface. With the continuous degradation of FMC, bone marrow mesenchymal stem cells (BMSCs) and vascular endothelial cells (VECs) in the surrounding environment are recruited to the surface of the scaffold to promote bone and vascular regeneration. After implanting the scaffold into the distal femoral defect of rabbits, Micro CT, histological, push-out, as well as immunohistochemical analysis showed that the composite interface can significantly promote osseointegration. These findings provide a new strategy for the development and application of mineralized collagen materials.
Keywords	3D-printed porous titanium scaffold ; Mineralized collagen ; Growth factor ; Bionic interface ; Angiogenesis ; Osseointegration ; Medicine (General) ; R5-920 ; Biology (General) ; QH301-705.5
Subject code	600
Language	English
Publishing date	2024-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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