LIVIVO - Search results -

Search results

Result 1 - 10 of total 2594

Search options

Article ; Online: Geological Characteristics of Lower Paleozoic Shale Gas Accumulation in the Yuxi Region, Southern Sichuan Basin: In View of High-Density Methane Inclusions.

Cui, Yue / Li, Xizhe / Han, Lingling / Feng, Yong / Guo, Wei / Lin, Wei / Qian, Chao / Feng, Tao

ACS omega

2022 Volume 7, Issue 31, Page(s) 27422–27435

Abstract: ... 4200 m in three wells located in different tectonic zones in the Yuxi Region, southern Sichuan Basin ... veins of the Wufeng-Longmaxi Formation in the Yuxi Region are mainly formed vertically and horizontally ...

Abstract	Twelve shale fracture veins and forty-nine fluid inclusion assemblages within the veins of 3800-4200 m in three wells located in different tectonic zones in the Yuxi Region, southern Sichuan Basin were selected in this study. The burial and thermal histories of single wells were reconstructed, and time-temperature-pressure of oil and gas filling were clarified using microscopy observation, Raman microprobe analyses, geochemical tests, and fluid inclusion microtemperature measurement. The shale fracture veins of the Wufeng-Longmaxi Formation in the Yuxi Region are mainly formed vertically and horizontally, where the vein-forming fluids are derived from endogenous fluids. A large number of methane inclusions, bituminous inclusions, and methane-bearing bituminous inclusions within the veins confirm the process of oil cracking gas and kerogen cracking gas. The homogeneous temperature (Th) of the aqueous inclusions contemporaneous with the bituminous inclusions ranges from 109.3 to 174.1 °C, which were trapped during 220 to 250 Ma. The homogeneous temperature of the aqueous inclusions contemporaneous with the methane inclusions ranges from 137.3 to 226.8 °C, which were trapped during 160 to 195 Ma and 51 to 56 Ma. The trapped pressure calculated by high-density methane inclusions (0.246-0.293 g/cm
Language	English
Publishing date	2022-07-27
Publishing country	United States
Document type	Journal Article
ISSN	2470-1343
ISSN (online)	2470-1343
DOI	10.1021/acsomega.2c02442
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Evaluation on the urban green space layout in the central city of Yuxi based on big data

Jing Zhou / Maoxiao Yang / Jing Chai / Li Wu

Frontiers in Environmental Science, Vol

2022 Volume 10

Abstract: ... for the layout of park green space in the central urban area of Yuxi City. The results show that there are great ... demand of green space have a strong correlation with the geographical location. In future planning, Yuxi ...

Abstract	As an important part of urban public infrastructure, urban green space plays an indispensable role in urban development and public physical, mental, and emotional health. By collecting open data such as POI, OSM, and ASTER GDEM and using spatial analysis software such as ARCGIS, QGIS, and Global Mapper, this study conducted thermal analysis of crowd activities, service pressure analysis, and demand evaluation for the layout of park green space in the central urban area of Yuxi City. The results show that there are great differences in the area and spatial layout of the thermal classes of crowd activity. Class II occupies the largest area, accounting for 60.73%, while class V occupies the least area, accounting for 2.04%. The thermal classes of crowd activity decrease from the center of the city to the periphery, and their area increases with the decrease of the thermal classes. With the increase in the level of green space service pressure, the proportion of the area decreased, among which the proportion of grade I was as high as 53.20%, while that of grade V was only 1.89%, which was mainly affected by the spatial location. The demand level and the area of park green space are obviously different, mainly concentrated in the first level, accounting for 69.68% of the total demand, and the large area is scattered in the periphery of the central urban area, followed by the fourth level, accounting for 10.46%. The area of other levels, especially the high level of demand, is less. Comprehensive analysis shows that the service level, type of green space, service pressure, and demand of green space have a strong correlation with the geographical location. In future planning, Yuxi City should combine the population distribution density and land development intensity and carry out reasonable layout and planning of park green space by reducing the low-demand area, increasing the green space area of high-demand area, improving public transportation, and improving accessibility.
Keywords	urban green space ; big data ; geoinformation technology ; layout evaluation ; Yuxi City ; Environmental sciences ; GE1-350
Subject code	710
Language	English
Publishing date	2022-11-01T00:00:00Z
Publisher	Frontiers Media S.A.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article: Modeling Analysis on Coupling Mechanisms of Mountain–Basin Human–Land Systems: Take Yuxi City as an Example

Wu, Li / Yang, Yanjun / Xie, Binggeng

Land. 2022 July 13, v. 11, no. 7

2022

Abstract: ... statistical data in Yuxi City, respectively: the transformation parameter of the production and living land ...

Abstract	The result of a human–land relationship in geographical environment systems is a human–land coupling system, which is a comprehensive process of interaction and infiltration between human economic and social systems and the natural ecosystem. Based on the recognition that the human–land system is a nonlinear system coupled by multiple factors, a time delay fractional order dynamics model with a Holling-II-type transformation rate was constructed, the stability analysis of the system was carried out, the transformation times of different land classes were clarified, and the coupled dynamics model parameters of mountainous areas and basin areas were obtained by using the land-use change survey data and socio-economic statistical data in Yuxi City, respectively: the transformation parameter of the production and living land to the unused land in mountainous areas and basin areas (aM, 0.0486 and aB, 0.0126); the transformation parameter of unused land to production and living land in mountainous areas and basin areas (bM 0.0062 and bB, 0.0139); the transformation parameter of unused land to the forest and grass land in mountainous areas and basin areas (sM, 0.0051 and sB, 0.0028); the land area required to maintain the individual unit in mountainous areas and basin areas (hM, 0.0335 and hB, 0.0165); the average reclamation capacity in mountainous areas and basin areas (dM, 0.03 and dB, 0.05); the inherent growth rate of populations in mountainous areas and basin areas (rM, 0.0563 and rB, 0.151). Through analyzing the coupling mechanisms of human–land systems, the countermeasures for the difference between mountainous areas and basin areas in the future development are put forward. The mountainous area should reduce the conversion of forest and grass land to production and living land by reducing the average reclamation or development capacity, reducing the excessive interference of human beings on unused land, and speeding up its natural recovery and succession to forest and grass land. In addition to reducing the average reclamation or development capacity in basin areas, the reclamation or development rate of the idle land and degraded land should be increased, and the conversion of idle land and degraded land into productive and living land should be encouraged by certain scientific and technological means.
Keywords	basins ; dynamic models ; ecosystems ; forests ; grasses ; humans ; land ; land degradation ; land use change ; mountains ; socioeconomics ; surveys
Language	English
Dates of publication	2022-0713
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2682955-1
ISSN	2073-445X
ISSN	2073-445X
DOI	10.3390/land11071068
Database	NAL-Catalogue (AGRICOLA)

Order via subito

Article: [Molecular characteristics of the first imported case of dengue-2 virus at Yuxi city in Yunnan Province].

Fan, Z H / Guo, X F / Li, L J / Wei, R Q / Li, W / Pu, J B / Yang, M D

Zhonghua yu fang yi xue za zhi [Chinese journal of preventive medicine

2017 Volume 51, Issue 9, Page(s) 856–857

Language	Chinese
Publishing date	2017-09-06
Publishing country	China
Document type	Journal Article
ZDB-ID	604575-3
ISSN	0253-9624
ISSN	0253-9624
DOI	10.3760/cma.j.issn.0253-9624.2017.09.016
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.B 2487: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: Association of cold temperature and mortality and effect modification in the subtropical plateau monsoon climate of Yuxi, China.

Ding, Zan / Li, Liujiu / Wei, Ruqin / Dong, Wenya / Guo, Pi / Yang, Shaoyi / Liu, Ju / Zhang, Qingying

Environmental research

2016 Volume 150, Page(s) 431–437

Abstract: ... in the distinct subtropical plateau monsoon climate of Yuxi, a high plateau region in southwest China.: Methods ... on mortality in Yuxi, China, and a temperature of 9.1°C is an important cut-off for cold-related mortality ...

Abstract	Background: Consistent evidence has shown excess mortality associated with cold temperature, but some important details of the cold-mortality association (e.g. slope and threshold) have not been adequately investigated and few studies focused on the cold effect in high-altitude areas of developing countries. We attempted to quantify the cold effect on mortality, identify the details, and evaluate effect modification in the distinct subtropical plateau monsoon climate of Yuxi, a high plateau region in southwest China. Methods: From daily mortality and meteorological data during 2009-2014, we used a quasi-Poisson model combined with a "natural cubic spline-natural cubic spline" distributed lag non-linear model to estimate the temperature-mortality relationship and then a simpler "hockey-stick" model to investigate the cold effect and details. Results: Cold temperature was associated with increased mortality, and the relative risk of cold effect (1st relative to 10th temperature percentile) on non-accidental, cardiovascular, and respiratory mortality for lag 0-21 days was 1.40 (95% confidence interval: 1.19-1.66), 1.61 (1.28-2.02), and 1.13 (0.78-1.64), respectively. A 1°C decrease below a cold threshold of 9.1°C (8th percentile) for lags 0-21 was associated with a 7.35% (3.75-11.09%) increase in non-accidental mortality. The cold-mortality association was not significantly affected by cause-specific mortality, gender, age, marital status, ethnicity, occupation, or previous history of hypertension. Conclusions: There is an adverse impact of cold on mortality in Yuxi, China, and a temperature of 9.1°C is an important cut-off for cold-related mortality for residents.
MeSH term(s)	Aged ; China/epidemiology ; Climate ; Cold Temperature ; Female ; Humans ; Male ; Mortality
Language	English
Publishing date	2016-07-01
Publishing country	Netherlands
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2016.06.029
Database	MEDical Literature Analysis and Retrieval System OnLINE

In stock of ZB MED Cologne/Königswinter

Zs.A 726: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

Article ; Online: A New Hybrid Model FPA-SVM Considering Cointegration for Particular Matter Concentration Forecasting: A Case Study of Kunming and Yuxi, China.

Li, Weide / Kong, Demeng / Wu, Jinran

Computational intelligence and neuroscience

2017 Volume 2017, Page(s) 2843651

Abstract: ... daily PM2.5 and PM10 concentration data form January 1, 2015, to August 23, 2016, in Kunming and Yuxi ...

Abstract	Air pollution in China is becoming more serious especially for the particular matter (PM) because of rapid economic growth and fast expansion of urbanization. To solve the growing environment problems, daily PM2.5 and PM10 concentration data form January 1, 2015, to August 23, 2016, in Kunming and Yuxi (two important cities in Yunnan Province, China) are used to present a new hybrid model CI-FPA-SVM to forecast air PM2.5 and PM10 concentration in this paper. The proposed model involves two parts. Firstly, due to its deficiency to assess the possible correlation between different variables, the cointegration theory is introduced to get the input-output relationship and then obtain the nonlinear dynamical system with support vector machine (SVM), in which the parameters c and g are optimized by flower pollination algorithm (FPA). Six benchmark models, including FPA-SVM, CI-SVM, CI-GA-SVM, CI-PSO-SVM, CI-FPA-NN, and multiple linear regression model, are considered to verify the superiority of the proposed hybrid model. The empirical study results demonstrate that the proposed model CI-FPA-SVM is remarkably superior to all considered benchmark models for its high prediction accuracy, and the application of the model for forecasting can give effective monitoring and management of further air quality.
Language	English
Publishing date	2017
Publishing country	United States
Document type	Journal Article
ZDB-ID	2388208-6
ISSN	1687-5273 ; 1687-5265
ISSN (online)	1687-5273
ISSN	1687-5265
DOI	10.1155/2017/2843651
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

Order via subito

Details ▾
- Full text online
- Order with fees

Conference proceedings ; Online: Designing and Practicing of Organic Farm —a case study in Yuxi Manor of China

gang, li / jibing, zhang

2014

Abstract: ... Taking the planning of “Yuxi Manor” as an example, the designing for materials and energy circulation ...

Abstract	The definition, characteristics and basic discipline of organic manor in China are discussed. Taking the planning of “Yuxi Manor” as an example, the designing for materials and energy circulation, organic production technical system, and quality system of the Manor are highlighted. ICS is introduced creatively into the planning for guaranteeing the organic integrity of the Manor. The study is referential for the construction of other organic manors.
Keywords	Assessment of impacts and risks ; Regulation
Language	English
Publishing country	dk
Document type	Conference proceedings ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

Full text online

Full text

Inter-library loan at ZB MED

Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

Article ; Online: Classification of groundwater contamination in Yuxi River Valley, Shaanxi Province, China.

Li, Yunfeng / Wan, Weifeng / Song, Jin / Wu, Yaoguo / Xu, Yanjuan / Zhang, Maosheng

Bulletin of environmental contamination and toxicology

2009 Volume 82, Issue 2, Page(s) 234–238

Abstract: This study investigated groundwater contamination in the Yuxi River Valley in northern Shaanxi ... in the Yuxi River Valley area were analyzed and evaluated to establish the local groundwater quality zonings ... Results indicate that groundwater in the Yuxi River Valley is contaminated, and the dominant contaminants ...

Abstract	This study investigated groundwater contamination in the Yuxi River Valley in northern Shaanxi Province, one of largest energy resource centers in China. Groundwater samples collected from 129 locations in the Yuxi River Valley area were analyzed and evaluated to establish the local groundwater quality zonings. Results indicate that groundwater in the Yuxi River Valley is contaminated, and the dominant contaminants in the groundwater are ammonium (NH(4)(+)) and nitrite (NO(2)(-)). Maximal concentration of NH(4)(+) was detected at 0.019 and 3.50 mg/L in the samples collected up-gradient and down-gradient, respectively, of the segment of Yuxi River that flows through Yulin City. Concentration of NO(2)(-) was detected at 0.0015 and 1.522 mg/L, respectively from the same samples. Zones I through IV, from non-polluted to seriously polluted, were identified for groundwater quality in the Yuxi River Valley. We attribute the groundwater contamination in the Yuxi River valley to sources in the Yulin township, presumably its wastewater discharge.
MeSH term(s)	Nitrites/analysis ; Quaternary Ammonium Compounds/analysis ; Water Pollutants/analysis
Chemical Substances	Nitrites ; Quaternary Ammonium Compounds ; Water Pollutants
Language	English
Publishing date	2009-02
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	6895-0
ISSN	1432-0800 ; 0007-4861
ISSN (online)	1432-0800
ISSN	0007-4861
DOI	10.1007/s00128-008-9608-1
Database	MEDical Literature Analysis and Retrieval System OnLINE

Full text online

Accessible to users with ZB MED library card

In stock of ZB MED Cologne/Königswinter

Zs.B 75: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾

Article ; Online: A comparison of effectiveness between oral rapid testing and routine serum-based testing for HIV in an outpatient dental clinic in Yuxi Prefecture, China: a case-control study.

Li, Shifu / Su, Shu / Li, Shunxiang / Gao, Liangmin / Cai, Ying / Fu, Jincui / Guo, Chunyuan / Lu, Wei / Cheng, Feng / Jing, Jun / Chen, Liang / Zhang, Lei

BMJ open

2017 Volume 7, Issue 6, Page(s) e014601

Abstract: ... outpatient clinic in the Yuxi People's Hospital, Yunnan.: Participants: A total of 758 and 816 dental outpatients ...

Abstract	Objective: To compare the outcomes of routine provider-initiated HIV testing and counselling (PITC) and oral rapid HIV testing for dental clinic outpatients in a hospital. Design: We employed a case-control study design and recruited dental outpatients into routine serum-based and oral rapid testing groups. We compared the acceptance, completion and result notification rate between groups. Setting: A dental outpatient clinic in the Yuxi People's Hospital, Yunnan. Participants: A total of 758 and 816 dental outpatients were enrolled for routine and oral rapid testing, respectively. Results: The percentage of participants willing to receive routine HIV testing was 28.1% (95% CI 24.9% to 31.3%) and 96.1% (95% CI 94.8% to 97.4%, Conclusion: Oral rapid HIV testing is a feasible and efficient approach in a clinical setting.
MeSH term(s)	Adolescent ; Adult ; Case-Control Studies ; China ; Dental Clinics ; Developing Countries ; Female ; HIV Infections/blood ; HIV Infections/diagnosis ; Humans ; Male ; Mass Screening/statistics & numerical data ; Middle Aged ; Patient Acceptance of Health Care/psychology ; Patient Acceptance of Health Care/statistics & numerical data ; Point-of-Care Testing/statistics & numerical data ; Time Factors ; Young Adult
Language	English
Publishing date	2017-06-30
Publishing country	England
Document type	Comparative Study ; Journal Article
ZDB-ID	2747269-3
ISSN	2044-6055 ; 2044-6055 ; 2053-3624
ISSN (online)	2044-6055
ISSN	2044-6055 ; 2053-3624
DOI	10.1136/bmjopen-2016-014601
Database	MEDical Literature Analysis and Retrieval System OnLINE

Order via subito

Article: Association of cold temperature and mortality and effect modification in the subtropical plateau monsoon climate of Yuxi, China

Ding, Zan / Liujiu Li / Ruqin Wei / Wenya Dong / Pi Guo / Shaoyi Yang / Ju Liu / Qingying Zhang

Environmental research. 2016 Oct., v. 150

2016

Abstract: ... in the distinct subtropical plateau monsoon climate of Yuxi, a high plateau region in southwest China.From daily ... previous history of hypertension.There is an adverse impact of cold on mortality in Yuxi, China, and ...

Abstract	Consistent evidence has shown excess mortality associated with cold temperature, but some important details of the cold–mortality association (e.g. slope and threshold) have not been adequately investigated and few studies focused on the cold effect in high-altitude areas of developing countries. We attempted to quantify the cold effect on mortality, identify the details, and evaluate effect modification in the distinct subtropical plateau monsoon climate of Yuxi, a high plateau region in southwest China.From daily mortality and meteorological data during 2009–2014, we used a quasi-Poisson model combined with a “natural cubic spline–natural cubic spline” distributed lag non-linear model to estimate the temperature–mortality relationship and then a simpler “hockey-stick” model to investigate the cold effect and details.Cold temperature was associated with increased mortality, and the relative risk of cold effect (1st relative to 10th temperature percentile) on non-accidental, cardiovascular, and respiratory mortality for lag 0–21 days was 1.40 (95% confidence interval: 1.19–1.66), 1.61 (1.28–2.02), and 1.13 (0.78–1.64), respectively. A 1°C decrease below a cold threshold of 9.1°C (8th percentile) for lags 0–21 was associated with a 7.35% (3.75–11.09%) increase in non-accidental mortality. The cold–mortality association was not significantly affected by cause-specific mortality, gender, age, marital status, ethnicity, occupation, or previous history of hypertension.There is an adverse impact of cold on mortality in Yuxi, China, and a temperature of 9.1°C is an important cut-off for cold-related mortality for residents.
Keywords	climate ; cold ; confidence interval ; developing countries ; gender ; marital status ; meteorological data ; monsoon season ; mortality ; nationalities and ethnic groups ; nonlinear models ; plateaus ; relative risk ; temperature ; China
Language	English
Dates of publication	2016-10
Size	p. 431-437.
Publishing place	Elsevier Inc.
Document type	Article
ZDB-ID	205699-9
ISSN	1096-0953 ; 0013-9351
ISSN (online)	1096-0953
ISSN	0013-9351
DOI	10.1016/j.envres.2016.06.029
Database	NAL-Catalogue (AGRICOLA)

In stock of ZB MED Cologne/Königswinter

Zs.A 726: Show issues

Location:
Je nach Verfügbarkeit (siehe Angabe bei Bestand)
bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
Jg. 1995 - 2021: Lesesall (1.OG)
ab Jg. 2022: Lesesaal (EG)

Order via subito

Details ▾
- See ZB MED holdings
- Order with fees

To top

More links

Kategorien

Order via subito

Inter-library loan at ZB MED

Full text online

More links

Kategorien

Inter-library loan at ZB MED

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

Full text online

More links

Kategorien

Order via subito

Full text online

More links

Kategorien

Inter-library loan at ZB MED

Full text online

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito

More links

Kategorien

Order via subito

More links

Kategorien

In stock of ZB MED Cologne/Königswinter

Order via subito