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Book ; Conference proceedings: Foundations of health informatics engineering and systems

Liu, Zhiming

first international symposium, FHIES 2011 ; Johannesburg, South Africa, August 29 - 30, 2011 ; revised selected papers

(Lecture notes in computer science ; 7151)

2012

Event/congress	FHIES (1, 2011, Johannesburg)
Author's details	Zhiming Liu ... (ed.)
Series title	Lecture notes in computer science ; 7151
Collection
Keywords	E-Health
Subject	Electronic Health ; Digital Health ; Gesundheitstelematik ; Medizintelematik ; Health Telematics ; Gesundheitswesen ; Health Care Telematics ; eHealth ; Medical Telematics
Language	English
Size	X, 224 S. : Ill.
Publisher	Springer
Publishing place	Heidelberg u.a.
Publishing country	Germany
Document type	Book ; Conference proceedings
HBZ-ID	HT017445889
ISBN	978-3-642-32354-6 ; 3-642-32354-5 ; 9783642323553 ; 3642323553
Database	Catalogue ZB MED Medicine, Health

In stock of ZB MED Cologne/Königswinter

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2012 A 4499	order for loan	Magazin

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Article ; Online: Unlocking Efficiency in Fine-Grained Compositional Image Synthesis

Zongtao Wang / Zhiming Liu

Applied Sciences, Vol 13, Iss 7587, p

A Single-Generator Approach

2023 Volume 7587

Abstract: The use of Generative Adversarial Networks (GANs) has led to significant advancements in the field of compositional image synthesis. In particular, recent progress has focused on achieving synthesis at the semantic part level. However, to enhance ... ...

Abstract	The use of Generative Adversarial Networks (GANs) has led to significant advancements in the field of compositional image synthesis. In particular, recent progress has focused on achieving synthesis at the semantic part level. However, to enhance performance at this level, existing approaches in the literature tend to prioritize performance over efficiency, utilizing separate local generators for each semantic part. This approach leads to a linear increase in the number of local generators, posing a fundamental challenge for large-scale compositional image synthesis at the semantic part level. In this paper, we introduce a novel model called Single-Generator Semantic-Style GAN (SSSGAN) to improve efficiency in this context. SSSGAN utilizes a single generator to synthesize all semantic parts, thereby reducing the required number of local generators to a constant value. Our experiments demonstrate that SSSGAN achieves superior efficiency while maintaining a minimal impact on performance.
Keywords	compositional learning ; generative adversarial network ; image synthesis ; disentanglement ; efficiency ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
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: What Drives the Development and Sustainable Growth of Cultural Nonprofits—Chinese Province-Level Evidence

Zhiming Liu / Haiwei Jia

Sustainability, Vol 14, Iss 5139, p

2022 Volume 5139

Abstract: Although cultural nonprofits play an increasingly important role in the provision of public cultural services in China, there are obvious regional differences in the development of cultural nonprofits. What factors affect this regional difference? This ... ...

Abstract	Although cultural nonprofits play an increasingly important role in the provision of public cultural services in China, there are obvious regional differences in the development of cultural nonprofits. What factors affect this regional difference? This paper builds a theoretical model to explain the regional differences from the perspectives of regional demand, resource supply, and agglomeration effects. Data from the 31 provinces in mainland China from 2010 to 2015 are used to empirically examine the research model. The results indicate that demand for heterogeneity, financial resources, and human resources have positive effects on the size of cultural social organizations, and that there are also significant agglomeration effects with respect to the sustainable growth of cultural nonprofits; however, these findings vary across types of Chinese nonprofits (social organizations, private non-enterprise organizations, and foundations). These findings improve our understanding of regional differences of Chinese cultural nonprofits and have important policy implications for governments to promote the development of cultural nonprofits.
Keywords	nonprofit sector size ; nonprofit sector growth ; regional demand ; resource supply ; agglomeration effect ; cultural nonprofits ; Environmental effects of industries and plants ; TD194-195 ; Renewable energy sources ; TJ807-830 ; Environmental sciences ; GE1-350
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: A learning-based synthesis approach of reward asynchronous probabilistic games against the linear temporal logic winning condition

Wei Zhao / Zhiming Liu

PeerJ Computer Science, Vol 8, p e

2022 Volume 1094

Abstract: The traditional synthesis problem is usually solved by constructing a system that fulfills given specifications. The system is constantly interacting with the environment and is opposed to the environment. The problem can be further regarded as solving a ...

Abstract	The traditional synthesis problem is usually solved by constructing a system that fulfills given specifications. The system is constantly interacting with the environment and is opposed to the environment. The problem can be further regarded as solving a two-player game (the system and its environment). Meanwhile, stochastic games are often used to model reactive processes. With the development of the intelligent industry, these theories are extensively used in robot patrolling, intelligent logistics, and intelligent transportation. However, it is still challenging to find a practically feasible synthesis algorithm and generate the optimal system according to the existing research. Thus, it is desirable to design an incentive mechanism to motivate the system to fulfill given specifications. This work studies the learning-based approach for strategy synthesis of reward asynchronous probabilistic games against linear temporal logic (LTL) specifications in a probabilistic environment. An asynchronous reward mechanism is proposed to motivate players to gain maximized rewards by their positions and choose actions. Based on this mechanism, the techniques of the learning theory can be applied to transform the synthesis problem into the problem of computing the expected rewards. Then, it is proven that the reinforcement learning algorithm provides the optimal strategies that maximize the expected cumulative reward of the satisfaction of an LTL specification asymptotically. Finally, our techniques are implemented, and their effectiveness is illustrated by two case studies of robot patrolling and autonomous driving.
Keywords	Strategy synthesis ; Reward mechanism ; Reinforcement learning ; Linear temporal logic ; Expected cumulative reward ; Electronic computers. Computer science ; QA75.5-76.95
Subject code	004 ; 629
Language	English
Publishing date	2022-09-01T00:00:00Z
Publisher	PeerJ Inc.
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Flavonoid Metabolome-Based Active Ingredient Mining and Callus Induction in Catalpa bungei C. A. Mey

Xiaofeng Zeng / Xiao Wang / Yanling Zeng / Jinbo Hou / Zhiming Liu

Forests, Vol 14, Iss 1814, p

2023 Volume 1814

Abstract: Catalpa bungei C. A. Mey is a unique and precious multi-purpose tree species that possesses great timber-related, ornamental and medicinal values. In this study, MS, N6 and DKW were used as basic media, and different concentrations of 6-BA and NAA were ... ...

Abstract	Catalpa bungei C. A. Mey is a unique and precious multi-purpose tree species that possesses great timber-related, ornamental and medicinal values. In this study, MS, N6 and DKW were used as basic media, and different concentrations of 6-BA and NAA were added for callus induction. The induction rate and total flavonoid content of callus tissue showed that the best callus induction medium was DKW + 2.0 mg·L −1 6-BA + 0.5–1.0 mg·L −1 NAA. The leaves of different bark phenotypes of C. bungei C. A. Mey and the callus tissue extracted from young leaves of C. bungei C. A. Mey were used as experimental materials to construct metabolomic profiles of widely targeted flavonoids. Based on the metabolomic databases, the predominant flavonoids were screened from the callus tissues. Eight flavonoid metabolites increased in callus, and diosmetin-7-O-rutinoside (diosmin) was the flavonoid constituent with the shortest retention time, most efficient detection and best medicinal functions among these 8. The optimal medium for callus induction was supplemented with different concentrations of elicitors (salicylic acid SA and yeast extract YE). The optimal elicitor and the amount to be added were determined by analyzing the induction rate of callus, as well as the total contents of flavonoids and diosmin. The addition of SA and YE in appropriate amounts increased the total flavonoid content in the callus, but only the addition of YE promoted the formation of diosmin in the callus. The optimal medium formulation to promote the formation of callus was DKW + 2.0 mg·L −1 6-BA + 1.0 mg·L −1 NAA + 30 g·L −1 sucrose + 6.8 g·L −1 agar + 10 μmol·L −1 SA. The medium formulation to optimally increase the content of geraniol glucoside was DKW + 2.0 mg·L −1 6-BA + 1.0 mg·L −1 NAA + 30 g·L −1 sucrose + 6.8 g·L −1 agar + 200 mg·L −1 YE. The results of the present study will provide a scientific basis for the subsequent increase in the content of the active components of the suspension cells via the addition of elicitors, and for the production of ...
Keywords	Catalpa bungei C. A. Mey ; callus induction ; flavonoid metabolite ; yeast extract ; diosmetin-7-O-rutinoside (diosmin) ; Plant ecology ; QK900-989
Subject code	333
Language	English
Publishing date	2023-09-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Dimethyl carbonate synthesis from CO2 and methanol over CeO2-ZrO2 catalyst

Shiyu Xu / Yunxia Cao / Zhiming Liu

Catalysis Communications, Vol 162, Iss , Pp 106397- (2022)

2022

Abstract: CexZr1-xO2 catalysts with different Ce/Zr mole ratios were prepared by the sol-gel method and used for the direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol. Among a series of CexZr1-xO2 catalysts, Ce0.8Zr02O2 catalyst exhibited the ... ...

Abstract	CexZr1-xO2 catalysts with different Ce/Zr mole ratios were prepared by the sol-gel method and used for the direct synthesis of dimethyl carbonate (DMC) from CO2 and methanol. Among a series of CexZr1-xO2 catalysts, Ce0.8Zr02O2 catalyst exhibited the highest catalytic activity. Characterization results demonstrated that doping Zr into CeO2 can lead to the formation of the Ce-O-Zr solid solution, which would strengthen the interaction between ZrO2 and CeO2. Ce0.8Zr02O2 catalyst possessed the highest concentration of oxygen vacancy sites, thus exhibiting the highest activity for the direct synthesis of DMC.
Keywords	CO2 ; Dimethyl carbonate ; CeO2-ZrO2 ; Methanol ; Chemistry ; QD1-999
Language	English
Publishing date	2022-02-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Transcriptome analyses reveal the utilization of nitrogen sources and related metabolic mechanisms of Sporosarcina pasteurii.

Di Pei / Zhiming Liu / Wenjian Wu / Biru Hu

PLoS ONE, Vol 16, Iss 2, p e

2021 Volume 0246818

Abstract: In recent years, Sporosarcina pasteurii (S. pasteurii) has become one of the most popular bacteria in microbially induced calcium carbonate precipitation (MICP). Various applications have been developed based on the efficient urease that can induce the ... ...

Abstract	In recent years, Sporosarcina pasteurii (S. pasteurii) has become one of the most popular bacteria in microbially induced calcium carbonate precipitation (MICP). Various applications have been developed based on the efficient urease that can induce the precipitation of calcium carbonate. However, the metabolic mechanism related to biomineralization of S. pasteurii has not been clearly elucidated. The process of bacterial culture and biomineralization consumes a large amount of urea or ammonium salts, which are usually used as agricultural fertilizers, not to mention probable environmental pollutions caused by the excessive use of these raw materials. Therefore, it is urgent to reveal the mechanism of nitrogen utilization and metabolism of S. pasteurii. In this paper, we compared the growth and gene expression of S. pasteurii under three different culture conditions through transcriptome analyses. GO and KEGG analyses revealed that both ammonium and urea were direct nitrogen sources of S. pasteurii, and the bacteria could not grow normally in the absence of ammonium or urea. To the best of our knowledge, this paper is the first one to reveal the nitrogen utilization mechanism of S. pasteurii through transcriptome methods. Furthermore, the presence of ammonium might promote the synthesis of intracellular ATP and enhance the motility of the bacteria. There should be an ATP synthesis mechanism associated with urea hydrolysis catalyzed by urease in S. pasteurii.
Keywords	Medicine ; R ; Science ; Q
Subject code	500
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Enhanced alkali resistance of sulfated CeO2 catalyst for the reduction of NOx from biomass fired flue gas

Zizheng Zhou / Jianmin Lan / Lingyi Liu / Zhiming Liu

Catalysis Communications, Vol 149, Iss , Pp 106230- (2021)

2021

Abstract: Pristine CeO2 is not active for the selective catalytic reduction of NOx with NH3 (NH3-SCR) and the SCR activity is nearly totally lost due to the introduction of K. However, sulfation treatment of CeO2 leads to significantly improved SCR activity and ... ...

Abstract	Pristine CeO2 is not active for the selective catalytic reduction of NOx with NH3 (NH3-SCR) and the SCR activity is nearly totally lost due to the introduction of K. However, sulfation treatment of CeO2 leads to significantly improved SCR activity and remarkable resistance towards K poisoning. In-situ DRIFTS results revealed that the addition of K seldom affects the adsorption of NH3 over sulfated CeO2, whereas the adsorption of NH3 becomes very weak in the case of K-doped CeO2. The noticeably improved Brønsted acid sites due to the sulfation are responsible for the enhanced alkali resistance of sulfated CeO2 catalyst.
Keywords	NH3-SCR ; Sulfated CeO2 ; Alkali resistance ; Nitrogen oxides ; Chemistry ; QD1-999
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Influence of temperature on microbially induced calcium carbonate precipitation for soil treatment.

Jie Peng / Zhiming Liu

PLoS ONE, Vol 14, Iss 6, p e

2019 Volume 0218396

Abstract: Microbially induced calcium carbonate precipitation (MICP) is a potential method for improvement of soil. A laboratory study was conducted to investigate the influence of temperatures for soil improvement by MICP. The ureolytic activity experiments, MICP ...

Abstract	Microbially induced calcium carbonate precipitation (MICP) is a potential method for improvement of soil. A laboratory study was conducted to investigate the influence of temperatures for soil improvement by MICP. The ureolytic activity experiments, MICP experiments in aqueous solution and sand column using Sporosarcina pasteurii were conducted at different temperatures(10, 15, 20, 25 and 30°C). The results showed there were microbially induced CaCO3 precipitation at all the temperatures from 10 to 30°C. The results of ureolytic activity experiments showed that the bacterial had higher ureolytic activity at high temperatures within the early 20 hours, however, the ureolytic activity at higher temperatures decreased more quickly than at lower temperatures. The results of MICP experiments in aqueous solution and sand column were consistent with tests of ureolytic activity. Within 20 to 50 hours of the start of the test, more CaCO3 precipitation was precipitated at higher temperature, subsequently, the precipitation rate of all experiments decreased, and the higher the temperature, the faster the precipitation rate dropped. The final precipitation amount of CaCO3 in aqueous solution and sand column tests at 10 °C was 92% and 37% higher than that at 30 °C. The maximum unconfined compressive strength of MICP treated sand column at 10 °C was 135% higher than that at 30 °C. The final treatment effect of MICP at lower temperature was better than that at high temperature within the temperature range studied. The reason for better treatment effect at lower temperatures was due to the longer retention time of ureolytic activity of bacteria at lower temperatures.
Keywords	Medicine ; R ; Science ; Q
Subject code	550
Language	English
Publishing date	2019-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Bio-Based Alkali Lignin Cooperative Systems for Improving the Flame Retardant and Mechanical Properties of Rigid Polyurethane Foam

Xu Li / Chang Liu / Xinyu An / Li Niu / Jacko Feng / Zhiming Liu

Polymers, Vol 15, Iss 24, p

2023 Volume 4709

Abstract: Lignin was utilized as an environmentally friendly synergistic agent to augment the fire resistance and mechanical characteristics of rigid polyurethane foam (PUF)/melamine–formaldehyde resin ammonium polyphosphate (MFAPP). The incorporation of lignin ... ...

Abstract	Lignin was utilized as an environmentally friendly synergistic agent to augment the fire resistance and mechanical characteristics of rigid polyurethane foam (PUF)/melamine–formaldehyde resin ammonium polyphosphate (MFAPP). The incorporation of lignin significantly enhanced the charring capability and flame retardancy of PUF/MFAPP. Specifically, PUF/MFAPP 12 /A-lignin 3 exhibited a charring residue of 23.1% at 800 °C, accompanied by an increase in the limiting oxygen index (LOI) to 23.1%, resulting in a UL-94 V-0 rating. The cone calorimeter test (CCT) revealed that the peak heat release rate (PHRR), total heat release (THR), smoke production rate (SPR), and total smoke production (TSP) values of PUF/MFAPP 12 /A-lignin 3 were all lower than for pure PUF. MFAPP and alkali lignin exerted a noticeable influence on the physical and mechanical properties, leading to increases in density (35.4 kg/m 3 ), thermal conductivity (32.68 mW/(m·K)), and compressive strength (160.5 kPa). Observations of the morphology and elemental composition of char residues after combustion indicated the formation of an intact, thick, and continuous char layer enriched with nitrogen and phosphorus elements, which acted as a protective shield for the underlying foam.
Keywords	alkali lignin ; rigid polyurethane foam ; flame retardancy ; mechanical properties ; Organic chemistry ; QD241-441
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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