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Article ; Online: Spatiotemporal Evolution of the Coupling Coordination Relationship of “Population–Environment” Development in the Xi’an Metropolitan Area

Wen Qu / Hao Lian / Yao Wang / Yan Ma

Sustainability, Vol 15, Iss 4533, p

2023 Volume 4533

Abstract: In China, the metropolitan area is an important spatial carrier to promote high-quality urbanization as well as the coordinated development of large, medium, and small cities and regions. The environment is an important factor affecting the quality of ... ...

Abstract	In China, the metropolitan area is an important spatial carrier to promote high-quality urbanization as well as the coordinated development of large, medium, and small cities and regions. The environment is an important factor affecting the quality of life among urban populations, and anthropogenic activity significantly impacts the natural and built environments. Considering the Xi’an metropolitan area as a case study, we selected three subsystems across three cross-sections in 2000, 2010, and 2020: population agglomeration, natural ecological development, and urban environmental development. We used the entropy weight method, coupling the coordination model and correlation analysis to analyze the spatiotemporal patterns, coupling coordination relationship, and related development factors of the “population–environment” system. The results showed that the development of the “population–environment” system in Xi’an exhibits stratification and differentiation between the center, core, and periphery circles. The coupling coordination level of “population–environment” is slowly improving, while most districts and counties have been on the verge of incoordination. Furthermore, the coupling coordination relationship of each district and county could be further classified into five types. Accordingly, this paper discusses corresponding and differentiated strategies to promote the healthy and sustainable development of regional populations and the environment for districts and counties.
Keywords	population agglomeration ; natural ecological environment ; urban built environment ; coupling coordination relationship ; Xi’an metropolitan area ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
Subject code	910
Language	English
Publishing date	2023-03-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Experimental Study of Surface Roughness of Pine Wood by High-Speed Milling

Chunmei Yang / Yaqiang Ma / Tongbin Liu / Yucheng Ding / Wen Qu

Forests, Vol 14, Iss 1275, p

2023 Volume 1275

Abstract: The surface roughness of wood has a great influence on its performance and is a very important indicator in processing and manufacturing. In this paper, we use the central composite design experiment (CCD experiment) and artificial neural network (ANN) ... ...

Abstract	The surface roughness of wood has a great influence on its performance and is a very important indicator in processing and manufacturing. In this paper, we use the central composite design experiment (CCD experiment) and artificial neural network (ANN) model to study the changing pattern of surface roughness during the high-speed milling process of pine wood. In the CCD experiments, the spindle speed, feed speed, and depth of cut are used as the influencing factors, and the surface roughness is used as the index to analyze the variation law and fit the surface roughness parameter equation. By measuring the chip size in each group in the CCD experiment, the ANN model is used to predict the surface roughness under this machining parameter by measuring the chip size in each test group. The experimental results showed that the mean error of the surface roughness prediction values in the CCD experiment (12.2%) was larger than that of the ANN model (7.8%), and the mean squared error (MSE) of the ANN model was 0.025, the mean absolute percentage error(MAPE) was 0.01, and the coefficient of determination R 2 was 0.95. Compared with the CCD experiment, the ANN model had a higher prediction accuracy. The results of this paper can provide some guidance for the prediction of surface roughness during wood processing.
Keywords	surface roughness ; pine wood ; CCD experiment ; ANN model ; chips size ; Plant ecology ; QK900-989
Subject code	550
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: Experimental analysis on waterjet-guided Nd

Bakary S. Doumbia / Chunmei Yang / Yan Ma / Qingwei Liu / Wen Qu / Jiuqing Liu

SN Applied Sciences, Vol 4, Iss 6, Pp 1-

YAG laser thin wood machining

2022 Volume 27

Abstract: Abstract Waterjet-Guided Laser (WJGL) machining is an advanced technique providing efficiency and precision for wood machining. The present study investigates the practical demonstration and analysis of laminated object manufacturing (LOM) WJGL for thin ... ...

Abstract	Abstract Waterjet-Guided Laser (WJGL) machining is an advanced technique providing efficiency and precision for wood machining. The present study investigates the practical demonstration and analysis of laminated object manufacturing (LOM) WJGL for thin wood machining. A theoretical process of wood laser cutting was established, expressing relations between the cut kerf width and the influencing parameters. WJG Nd: YAG laser system was utilized for machining Korean pine and Northeast China ash specimen of 3 mm thickness, each with 7.21 and 7.13% of water content, respectively, under different machining conditions. The effects of process parameters and influences on woodcut surface geometry were analyzed via analysis of variance (ANOVA) and scanning electron microscopy (SEM). The investigated parameters include the laser cutting speed, power, kerf width, heat-affected zone (HAZ), and cut surface roughness. The study shows that the kerf width and surface were significantly influenced by WJGL power, followed by the cutting speed. For both wood specimens, at a fixed laser cutting speed of 2.36 mm/s, the kerf width increases significantly with laser power, affecting the cut surface quality accordingly. At 6 W and 8 W, the cut kerf geometry and surface quality were excellent for the Pinus Koraiensis, with kerf widths of 0.79 and 0.852 mm, respectively. At a fixed laser power of 8 W, the kerf width decreases with the cutting speed, affecting the cut surface quality. At a cutting speed of 4.33 mm/s, an excellent cut surface of Fraxinus mandshurica was observed with 0.808 mm of kerf width. Depending on the machining conditions, the kerf width variations of Korean pine were more significant than the Northeast China ash. LOM-WJGL is an efficient and eco-friendly technique for thin wood processing. Graphical abstract Article Highlights Practical modeling demonstration of waterjet guided laser (WJGL) wood machining. Experimental investigation of different wood specimens under influenced process parameters and machining ...
Keywords	Surface geometry ; Kerf width variation ; Laminated object manufacturing (LOM) ; Micromorphology ; Waterjet-guided laser (WJGL) ; Thin wood machining ; Science ; Q ; Technology ; T
Subject code	670
Language	English
Publishing date	2022-05-01T00:00:00Z
Publisher	Springer
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Tibetan Medicine Shi-Wei-Gan-Ning-San Alleviates Carbon Tetrachloride-Induced Chronic Liver Injury by Inhibiting TGF-β1 in Wistar Rats

Ziming Jia / Yanhua Zheng / Shaohua Fu / Jingjing Qu / Jie Tian / Wen Qu / Zhinan Mei

Evidence-Based Complementary and Alternative Medicine, Vol

2022 Volume 2022

Abstract: Background. Shi-Wei-Gan-Ning-San (SWGNS) is a classic Tibetan prescription, which has obvious clinical effects in the treatment of viral hepatitis, fatty liver, liver fibrosis, liver cirrhosis, liver cancer, and other liver injuries. However, animal ... ...

Abstract	Background. Shi-Wei-Gan-Ning-San (SWGNS) is a classic Tibetan prescription, which has obvious clinical effects in the treatment of viral hepatitis, fatty liver, liver fibrosis, liver cirrhosis, liver cancer, and other liver injuries. However, animal studies and mechanism studies are still lacking. This study aimed to investigate its hepatoprotective efficacy and pharmacological mechanism in animal experiments. Methods. Chronic liver injury was induced by oral administration of carbon tetrachloride (CCl4) in Wistar rats for 13 weeks. SWGNS was administered orally to rats at doses of 235, 705, and 1410 mg/kg for 13 weeks. Blood samples were collected for biochemical, ELISA, and radioimmunoassay. Livers were harvested for H&E and immunohistochemical staining. The major constituents of SWGNS were analyzed by HPLC. In vitro experiments were used to explore the protective effect of Crocin on BRL-3A in the environment of H2O2. Results. SWGNS reversed weight loss is induced by CCl4. Serum assays showed that SWGNS reduced CCl4-induced alanine aminotransferase, aspartate aminotransferase, total bilirubin, and γ-glutamyltransferase levels and increased the total protein and albumin levels. Histopathological evaluation showed that SWGNS alleviated hepatic steatosis, fibrosis, and inflammation. Furthermore, SWNGS reduced CCl4-induced elevations of TGF-β1, hyaluronic acid, laminin, and collagen IV in serum and reduced the high expression of α-SMA in tissues. Moreover, Crocin I and II are the main components of SWGNS. Crocin attenuated the damaging effects of H2O2 on BRL-3A. Conclusions. In conclusion, SWGNS alleviated CCl4-induced chronic liver injury by inhibiting the TGF-β1 pathway. This plays an important role in promoting traditional Tibetan medicine in clinical practice.
Keywords	Other systems of medicine ; RZ201-999
Subject code	610
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	Hindawi Limited
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Hydraulic Function Analysis of Conifer Xylem Based on a Model Incorporating Tracheids, Bordered Pits, and Cross-Field Pits

Wen Qu / Chunmei Yang / Jiawei Zhang / Yan Ma / Xinchi Tian / Shuai Zhao / Wenji Yu

Forests, Vol 13, Iss 171, p

2022 Volume 171

Abstract: Wood has a highly complex and anisotropic structure. Its xylem characteristics are key in determining the hydraulic properties of plants to transport water efficiently and safely, as well as the permeability in the process of wood impregnation ... ...

Abstract	Wood has a highly complex and anisotropic structure. Its xylem characteristics are key in determining the hydraulic properties of plants to transport water efficiently and safely, as well as the permeability in the process of wood impregnation modification. Previous studies on the relationship between the xylem structure and hydraulic conductivity of conifer have mainly focused on tracheids and bordered pits, with only a few focusing on the conduction model of cross-field pits which connect tracheids and rays. This study takes the xylem structure of conifer as an example, drawing an analogy between water flow under tension and electric current, and extends the model to the tissue scale, including cross-field pits by establishing isometric scaling. The structure parameters were collected by scanning electron microscopy and transmission electron microscopy. The improved model can quantify the important hydraulic functional characteristics of xylem only by measuring the more easily obtained tracheid section size. Then, this model was applied to quantify the relationship between the xylem anatomical structure and hydraulic properties in the pine ( Pinus sylvestris L. var. mongholica Litv. ) and the spruce ( Picea koraiensis Nakai ), and also to evaluate the effects of the number and size of cross-field pits on xylem conduction. The results showed that the growth ring conduction value of the pine was more than twice that of the spruce for the two tree species with similar growth widths in this study. The tracheid wall resistance of the pine reflected the result of the interaction of the size and number of cross-field pits, in comparison, the wall resistance of the spruce was more sensitive to the number of cross-field pits. Finally, the calculation output of the new model was cross-validated with the literature, which verified the accuracy and effectiveness of the model. This study provides an effective and complete solution for xylem conductivity measurement and the study of wood ecophysiological diversity and ...
Keywords	conifer ; cross-field pits ; bordered pits ; hydraulic properties ; flow resistance ; model ; Plant ecology ; QK900-989
Subject code	550
Language	English
Publishing date	2022-01-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Practice of autolysis and mechanical debridement in cancerous wound.

Peng, Li / Wen, Qu

International journal of clinical and experimental pathology

2017 Volume 10, Issue 8, Page(s) 9068–9072

Abstract: Objective: Cancerous wound has been the difficulty of clinical treatment. Due to wound stench, symptoms like a large number of exudate and so on seriously affect the quality of life of patients and self-esteem. Inappropriate treatment of cancerous ... ...

Abstract	Objective: Cancerous wound has been the difficulty of clinical treatment. Due to wound stench, symptoms like a large number of exudate and so on seriously affect the quality of life of patients and self-esteem. Inappropriate treatment of cancerous wounds not only lead to the above-mentioned symptoms aggravating with severe infection, but also affect the treatment plan. In view of the fact that wound treatment is based on well wound bed preparation, debridement is a prerequisite for ensuring a well state of the wound bed. Therefore, exploring the most suitable way for cancer wound debridement methods, can effectively control the wound symptoms, reduce secondary infection rate, reduce complications, improve patient quality of life. Method: There is a randomized controlled experiment that 22 patients with cancerous wound were nursed with autolysis debridement and mechanical debridement before and after for 2 weeks. The results of culture of secretions, the ratio of malodor, exudate and wound bed decayed tissue before and after debridement were compared. Result: Through the treatment of the combination of autolysis debridement and mechanical debridement, the rate of negative conversion of secretions is increased, the control time of malodor and exudate is shortened, and the proportion of decayed tissue is reduced. The difference is statistically significant (P < 0.05). Conclusion: Debridement combining autolysis debridement with mechanical debridement can effectively eliminate a large number of rotting tissue, significantly shorten the time of reducing the degree of wound infection and relieving the symptoms such as malodor and exudate, ensure the treatment of wound bed preparation, advantage to Wound healing, what's more, improve patient comfort level and quality of life.
Language	English
Publishing date	2017-08-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	2418306-4
ISSN	1936-2625 ; 1936-2625
ISSN (online)	1936-2625
ISSN	1936-2625
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: The Effect of CT-Guided Pulsed Radiofrequency Combined with Ozone Injection on Zoster-Associated Pain: A Retrospective Study.

Wang, Xiang / Yu, Jing / Han, Chong-Fang / He, Jian-Dong / Yang, Wen-Qu / Wang, Qi / Chen, Jian-Ping

Journal of pain research

2023 Volume 16, Page(s) 1321–1332

Abstract: Purpose: Globally, the incidence of herpes zoster (HZ) is increasing, and the resulting zoster-associated pain (ZAP) severely affects the quality of life of patients. Therefore, active treatment of ZAP and prevention of postherpetic neuralgia (PHN) are ... ...

Abstract	Purpose: Globally, the incidence of herpes zoster (HZ) is increasing, and the resulting zoster-associated pain (ZAP) severely affects the quality of life of patients. Therefore, active treatment of ZAP and prevention of postherpetic neuralgia (PHN) are very important for patients in the early stage of the disease. This retrospective observational study aimed to evaluate the effect of CT-guided pulsed radiofrequency (PRF) combined with ozone injection on zoster-associated pain. Patients and methods: From 2018 to 2020, 84 patients with AHN (n=28), SHN (n=32), or PHN (n=24) underwent PRF combined with ozone injection treatment after pharmacologic and conservative therapies failed. The visual analogue scale (VAS), the Pittsburgh Sleep Quality Index (PSQI), and pregabalin consumption were recorded at baseline, post-PRF, and at 1, 3, 6, and 12 months after treatment. The number of remediations performed and adverse reactions were recorded, and treatment inefficiency was calculated using a VAS score greater than 3 as the criterion. Results: The pooled results demonstrated statistically significant decreases in VAS scores, PSQI scores and consumption of pregabalin post-PRF and at 1, 3, 6, and 12 months follow-up (P<0.05). Compared with the PHN group, both the AHN and SHN groups showed clinical and statistical improvement in VAS scores and PSQI scores and in consumption of pregabalin (P< 0.05). At 1 year after the operation, the PHN group had a significantly greater number of remediation events and greater treatment inefficiency than the other two groups. No serious adverse events were observed during the procedure or during the follow-up period. Conclusion: CT-guided PRF combined with ozone injection is safe and effective for individuals with ZAP, and its short-term and long-term effects are significant. In a sense, early PRF combined with ozone injection is more effective.
Language	English
Publishing date	2023-04-20
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2495284-9
ISSN	1178-7090
ISSN	1178-7090
DOI	10.2147/JPR.S398578
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Associations of personal care products use with reproductive outcomes of IVF/ICSI treatment.

Guo, Qing-Chun / Yao, Wen / Liu, Chong / Deng, Tao-Ran / Li, Juan / Liao, Hong-Mei / Tian, Wen-Qu / Wang, Yi / Du, Yao-Yao / Li, Yu-Feng

Frontiers in endocrinology

2024 Volume 14, Page(s) 1320893

Abstract: Introduction: Personal care products (PCPs) contain a number of endocrine-disrupting chemicals (EDCs) that could potentially affect the reproductive function in women of childbearing age. However, studies focused on the effects of PCPs use on ... ...

Abstract	Introduction: Personal care products (PCPs) contain a number of endocrine-disrupting chemicals (EDCs) that could potentially affect the reproductive function in women of childbearing age. However, studies focused on the effects of PCPs use on reproductive outcomes are very limited. The current study aimed to explore the relationships between PCPs use patterns and reproductive outcomes in women undergoing Methods: A total of 1500 women from the Tongji Reproductive and Environmental (TREE) study between December 2018 and January 2020 were included in this study. Participants provided characteristics of PCPs use within the previous three months. Retrieved oocyte number, mature oocyte number, two distinct pronuclei (2PN) zygote number, fertilization rate, cleavage rate, blastocyst formation rate, implantation, clinical pregnancy, miscarriage, and live birth were followed up as reproductive endpoints. Generalized linear regression model was utilized to assess the associations between various categories of PCPs use and reproductive endpoints of IVF/ICSI. Results: After adjusting for relevant covariates, women who used skin care products ≥14 times per week had a reduction of 22.4% in the maturation rate (95% CI: -39.2%, -1.6%) compared to participants who did not use skin care products. After transferring fresh embryos, women who used cosmetics 1-2 times per week (adjusted OR = 2.2, 95% CI: 1.0, 4.8) or 3-7 times per week (adjusted OR = 2.5, 95% CI: 1.2, 5.2) had a higher possibility of miscarriage than those who did not use cosmetics. There was negative association between the use of gel or soap and the cleavage rate among women aged < 30 years old ( Conclusion: Our findings suggest that the use of PCPs in women of reproductive age have a potential adverse impact on IVF/ICSI outcomes, particularly skin care and cosmetic products.
MeSH term(s)	Humans ; Pregnancy ; Male ; Female ; Adult ; Sperm Injections, Intracytoplasmic ; Abortion, Spontaneous ; Pregnancy Rate ; Soaps ; Semen ; Fertilization in Vitro ; Cosmetics/adverse effects
Chemical Substances	Soaps ; Cosmetics
Language	English
Publishing date	2024-01-24
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2592084-4
ISSN	1664-2392
ISSN	1664-2392
DOI	10.3389/fendo.2023.1320893
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article: Bioconversion of bamboo shoot shell to methane assisted by microwave irradiation and fungus metabolism

Fang, Yong / Si, Buchun / Qiu, Jishi / Wen, Qu / An, Mengdi / Wang, Bihan / Jiang, Weizhong

Science of the total environment. 2020 July 01, v. 724

2020

Abstract: Bamboo shoot shell (BSS), a major byproduct from bamboo shoot industries with a high amount of output annually, needs to be sustainably management due to its impact on environment and human health. Anaerobic digestion is an eco-friendly and sustainable ... ...

Abstract	Bamboo shoot shell (BSS), a major byproduct from bamboo shoot industries with a high amount of output annually, needs to be sustainably management due to its impact on environment and human health. Anaerobic digestion is an eco-friendly and sustainable option, but its efficiency is limited by recalcitrance of lignocellulose structure. A cascade pretreatment (CP) using microwave irradiation and fungus metabolism was developed in this work to reduce the recalcitrance of BSS and enhance its methane production. The results showed significant synergistic effects of microwave irradiation and fungus metabolism on anaerobic digestion of BBS. The methane yield by CP increased by 162.9% (reached to 223.4 mL/g VS) when compared to control group. This was higher than both the values of fungal pretreatment (101.0 mL/g VS, 18.9% increase), and microwave pretreatment (110.5 mL/g VS, 30.1% increase) alone. Further mechanisms of the synergistic effects were revealed. Microwave irradiation provided dissolved products and more accessible BBS for fungus action. In particular, the GC–MS analysis indicated the dissolved products induced fungal laccase activity effectively, and the highest activity in CP was 1.91-fold higher than that in fungal pretreatment alone. The fungus in cascade process further increased accessible surface area and reducing sugars (20.2–43.2%, which compared to fungal pretreatment alone), and reduced significantly the lignin content (42.2–49.1%) and crystallinity (4.5–8.1%) of BSS.
Keywords	anaerobic digestion ; bamboo shoots ; biotransformation ; byproducts ; crystal structure ; enzyme activity ; fungi ; gas chromatography-mass spectrometry ; human health ; laccase ; lignin content ; lignocellulose ; metabolism ; methane ; methane production ; microwave radiation ; reducing sugars ; surface area ; synergism
Language	English
Dates of publication	2020-0701
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	121506-1
ISSN	1879-1026 ; 0048-9697
ISSN (online)	1879-1026
ISSN	0048-9697
DOI	10.1016/j.scitotenv.2020.138268
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: Bioconversion of bamboo shoot shell to methane assisted by microwave irradiation and fungus metabolism.

Fang, Yong / Si, Buchun / Qiu, Jishi / Wen, Qu / An, Mengdi / Wang, Bihan / Jiang, Weizhong

The Science of the total environment

2020 Volume 724, Page(s) 138268

Abstract	Bamboo shoot shell (BSS), a major byproduct from bamboo shoot industries with a high amount of output annually, needs to be sustainably management due to its impact on environment and human health. Anaerobic digestion is an eco-friendly and sustainable option, but its efficiency is limited by recalcitrance of lignocellulose structure. A cascade pretreatment (CP) using microwave irradiation and fungus metabolism was developed in this work to reduce the recalcitrance of BSS and enhance its methane production. The results showed significant synergistic effects of microwave irradiation and fungus metabolism on anaerobic digestion of BBS. The methane yield by CP increased by 162.9% (reached to 223.4 mL/g VS) when compared to control group. This was higher than both the values of fungal pretreatment (101.0 mL/g VS, 18.9% increase), and microwave pretreatment (110.5 mL/g VS, 30.1% increase) alone. Further mechanisms of the synergistic effects were revealed. Microwave irradiation provided dissolved products and more accessible BBS for fungus action. In particular, the GC-MS analysis indicated the dissolved products induced fungal laccase activity effectively, and the highest activity in CP was 1.91-fold higher than that in fungal pretreatment alone. The fungus in cascade process further increased accessible surface area and reducing sugars (20.2-43.2%, which compared to fungal pretreatment alone), and reduced significantly the lignin content (42.2-49.1%) and crystallinity (4.5-8.1%) of BSS.
MeSH term(s)	Anaerobiosis ; Biofuels ; Fungi ; Lignin ; Methane ; Microwaves
Chemical Substances	Biofuels ; Lignin (9005-53-2) ; Methane (OP0UW79H66)
Language	English
Publishing date	2020-03-31
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.2020.138268
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