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Article ; Online: Chaotic Properties of Gravity Waves during Typhoons Observed by HFSWR

Xuekun Chen / Hongjuan Yang / Zhe Lyu / Changjun Yu

Remote Sensing, Vol 15, Iss 21, p

2023 Volume 5235

Abstract: The gravity wave produced by typhoons has been an essential subject of study that concerns numerous researchers. The damage to human beings and infrastructure in coastal regions caused by typhoon disasters annually is very severe, and analyzing gravity ... ...

Abstract	The gravity wave produced by typhoons has been an essential subject of study that concerns numerous researchers. The damage to human beings and infrastructure in coastal regions caused by typhoon disasters annually is very severe, and analyzing gravity wave variation is a reliable approach to research typhoons. High-frequency surface wave radar (HFSWR) as an over-the-horizon radar can achieve real-time monitoring of an extensive sea area and space. This paper derived the gravity wave perturbation spectrum by handling high-frequency surface wave radar data during typhoons. The gravity wave spectrum data were examined by applying the chaos examination approaches of the Lyapunov exponent and phase-space reconstruction to the gravity wave spectrum data after processing and extraction. The reconstructed phase space had a specific shape in a certain direction, with the maximum Lyapunov exponent greater than zero. The gravity wave spectrum data are suggested to have chaotic properties through two chaos examination approaches. This paper demonstrated that the gravity waves observed by a radar have chaotic properties through the measurement data of HFSWR. While the chaotic properties suggest that observed gravity wave data are predictable in the short term, they are unpredictable in the long term. Predicting gravity wave data is important for understanding the chaotic properties of the atmosphere and for future gravity wave prediction.
Keywords	chaos examination ; HFSWR ; gravity waves ; typhoon ; Lyapunov exponent ; Science ; Q
Subject code	535
Language	English
Publishing date	2023-11-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Not-for-profit or for-profit? Research on the high-quality development path of private universities in China based on system dynamics

Shufen Duan / Hongjuan Yang / Fan Ning

Humanities & Social Sciences Communications, Vol 10, Iss 1, Pp 1-

2023 Volume 12

Abstract: Abstract Private universities play an important role in many countries worldwide. Approximately one-third of university students worldwide are enrolled in private universities. In countries with a large proportion of private universities, the quality of ... ...

Abstract	Abstract Private universities play an important role in many countries worldwide. Approximately one-third of university students worldwide are enrolled in private universities. In countries with a large proportion of private universities, the quality of private universities determines the quality of higher education in the country as a whole. In some developed countries, the quality is high; however, in most developing countries, the quality of private universities is significantly lower than that of public universities. In many countries, private universities are managed in either a “not-for-profit” or a “for-profit” manner. The management type of private universities that best supports high-quality development has become an important issue in the field of higher education in many developing countries, but there are only a few related quantitative studies. Taking one private university in China as an example, this study aims to reveal the path that best supports high-quality development for a private university regarding the choice between the not-for-profit and for-profit orientations. Based on a literature review, a system dynamics model of development for private universities is developed, and the case data are simulated and analyzed based on the model. It is concluded that the rapid development path with a not-for-profit orientation, which enjoys government financial allocation, is more conducive to the high-quality development of private universities. Finally, the study proposes the strategies of encouraging private universities to choose the not-for-profit orientation, increasing government investment in not-for-profit private universities, and strengthening the financial supervision of not-for-profit private universities to promote their high-quality development.
Keywords	History of scholarship and learning. The humanities ; AZ20-999 ; Social Sciences ; H
Subject code	001
Language	English
Publishing date	2023-12-01T00:00:00Z
Publisher	Springer Nature
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Development paths of people’s sustainable livelihood based on climate change

Jiaxin Wu / Lei Liu / Hongjuan Yang

International Journal of Climate Change Strategies and Management, Vol 15, Iss 3, Pp 432-

a case study of Yunnan minority areas

2023 Volume 455

Abstract: Purpose – This study aims to evaluate the characteristics of climate change in Yunnan minority areas and identify an effective path to promote sustainable livelihoods based on climate change. Design/methodology/approach – Taking Yunnan Province as an ... ...

Abstract	Purpose – This study aims to evaluate the characteristics of climate change in Yunnan minority areas and identify an effective path to promote sustainable livelihoods based on climate change. Design/methodology/approach – Taking Yunnan Province as an example, based on the expansion of the traditional sustainable livelihood framework, the authors constructed a system dynamics (SD) model of sustainable livelihood from the six subsystems of natural, physical, financial, social, human and cultural and tested the accuracy and effectiveness of the model with data from Cangyuan County. By adjusting these parameters, five development paths are designed to simulate the future situation of the livelihood system and determine the optimal path. Findings – Climate change has exacerbated the vulnerability of people’s livelihoods. In future, each of the five development paths will be advantageous for promoting sustainable livelihoods. However, compared with Path I (maintaining the status quo), Path III (path of giving priority to culture) and Path IV (path of giving priority to economic development) have more obvious advantages. Path II (path of giving priority to people’s lives) gradually increases the development rate by promoting people’s endogenous motivation, and Path V (path of coordinated development) is better than the other paths because of its more balanced consideration. Originality/value – The analytical framework of sustainable livelihoods based on the characteristics of minority areas is broadened. By constructing a SD model of the livelihood system, the limitations of traditional static analysis have been overcome and a development path for promoting sustainable livelihoods through simulation is proposed. This study offers a theoretical framework and reference method for livelihood research against the backdrop of climate change and a decision-making basis for enhancing climate adaptability and realizing sustainable livelihoods.
Keywords	Climate change ; Livelihood vulnerability ; Sustainable livelihood ; System dynamics model ; Path of coordinated development ; Environmental sciences ; GE1-350 ; Meteorology. Climatology ; QC851-999
Subject code	910
Language	English
Publishing date	2023-04-01T00:00:00Z
Publisher	Emerald Publishing
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: The Impact of Empowering Leadership on Job Performance of Higher Education Institutions Employees: Mediating Role of Goal Clarity and Self-Efficacy.

Ahmed, Tanveer / Chaojun, Yang / Hongjuan, Yang / Mahmood, Salman

Psychology research and behavior management

2022 Volume 15, Page(s) 677–694

Abstract: Purpose: The main objective of existing research is to assess empowering leadership effects on employees' job performance at the academic level through mediating variables' goal clarity and self-efficacy.: Methods: Data were congregated from 400 ... ...

Abstract	Purpose: The main objective of existing research is to assess empowering leadership effects on employees' job performance at the academic level through mediating variables' goal clarity and self-efficacy. Methods: Data were congregated from 400 employees belonging to higher education institutions of Pakistan through research assistants, hired for data collection. Statistical procedures, such as factor analysis via statistical package for the social sciences (SPSS 23), structural equation modeling with bootstrapping via statistical tool analysis of moment structures (AMOS 24), were used to evaluate data and assess the relationship among the constructs. Results: The structural equation modeling analysis uncovered several results. For instance, it shows the positive influence of empowering leadership behaviors on goal clarity, self-efficacy, and employees' job performance. Moreover, the bootstrap investigation showed that goal clarity and self-efficacy mediate empowering leadership behaviors' influence on workers' job performance. Therefore, conferring to existing study results empowering leadership is significantly associated with employees' job performance in the presence of mediators goal clarity and self-efficacy at the academic level of higher education institutions of Sindh, Pakistan. Conclusion: The main research question of existing research is to assess empowering leadership effects on employees' job performance through mediating variables' goal clarity and self-efficacy. To investigate this research question, we have conducted this study and empirically established that empowering leadership can affect employees' job performance with and without mediation. We have also shown empowering leadership as collaborative effects produce advanced levels of self-efficacy, goal clarity, and employees' job performance than either leadership behavior could accomplish by itself.
Language	English
Publishing date	2022-03-17
Publishing country	New Zealand
Document type	Journal Article
ZDB-ID	2495093-2
ISSN	1179-1578
ISSN	1179-1578
DOI	10.2147/PRBM.S357083
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Biological Control and Plant Growth Promotion by Volatile Organic Compounds of Trichoderma koningiopsis T-51

Jiaqi You / Guoqing Li / Chaohan Li / Lihua Zhu / Hongjuan Yang / Ronghao Song / Weihong Gu

Journal of Fungi, Vol 8, Iss 131, p

2022 Volume 131

Abstract: Trichoderma spp. are widely used in plant disease control and growth promotion due to their high efficacy and multiple biocontrol mechanisms. Trichoderma koningiopsis T-51 is an effective biocontrol agent against gray mold disease by direct contact. ... ...

Abstract	Trichoderma spp. are widely used in plant disease control and growth promotion due to their high efficacy and multiple biocontrol mechanisms. Trichoderma koningiopsis T-51 is an effective biocontrol agent against gray mold disease by direct contact. However, the indirect physical contact biocontrol potential of Trichoderma spp. is not clear. In this study, the volatile organic compounds (VOCs) produced by T-51 showed high inhibitory activity against plant pathogenic fungi Botrytis cinerea and Fusarium oxysporum . The percentage of B. cinerea and F. oxysporum mycelial growth inhibition by T-51 VOCs was 73.78% and 43.68%, respectively. In both B. cinerea and F. oxysporum , conidial germination was delayed, and germ tube elongation was suppressed when exposed to T-51 VOCs, and the final conidial germination rate of B. cinerea decreased significantly after T-51 treatment. The VOCs from T-51 reduced the Botrytis fruit rot of tomato compared with that noted when using the control. Moreover, the T-51 VOCs significantly increased the size and weight of Arabidopsis thaliana seedlings. Twenty-four possible compounds, which were identified as alkenes, alkanes, and esters, were detected in VOCs of T-51. These results indicate that T. koningiopsis T-51 can exert biological control by integrating actions to suppress plant disease and promote plant growth.
Keywords	biological control ; trichoderma ; VOCs ; botrytis cinerea ; fusarium oxysporum ; Biology (General) ; QH301-705.5
Subject code	571
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: The Response of Vegetable Sweet Potato ( Ipomoea batatas Lam) Nodes to Different Concentrations of Encapsulation Agent and MS Salts

Shehu A. Tadda / Xiaohua Kui / Hongjuan Yang / Min Li / Zhehong Huang / Xuanyang Chen / Dongliang Qiu

Agronomy, Vol 12, Iss 19, p

2022 Volume 19

Abstract: As an emerging technology, shoot encapsulation has been employed in germplasm conservation, distribution, and micropropagation of elite plant species. However, the production of synthetic seeds of sweet potato via non-zygotic embryogenesis requires a ... ...

Abstract	As an emerging technology, shoot encapsulation has been employed in germplasm conservation, distribution, and micropropagation of elite plant species. However, the production of synthetic seeds of sweet potato via non-zygotic embryogenesis requires a large number of embryos per cultured callus suspension and is labour-intensive. Here, we reported a simple method of encapsulating in vitro derived vegetable sweet potato nodal segments with sodium alginate, calcium chloride (CaCl 2 ), and Murashige and Skoog (MS) salts. The nodes encapsulated with 4% sodium alginate ( w / v ) and 100 mM CaCl 2 were the most suitable for propagation. They had uniform spherical beads and took the least number of days to shoot and root emergence. These plantlets produced more leaves, roots, and long shoots. Further evaluation of the MS salts concentration revealed that the plantlets encapsulated and grown with ½ MS salts had the least days to shoot and root emergence. They also had a longer shoot, the highest conversion rate (99%), and the least leaf abscission (17%). Thus, the sweet potato nodal segments encapsulated with 4% sodium alginate, 100 mM CaCl 2 , and ½ MS salts could be used as excellent material for micropropagation, germplasm conservation, and exchange of sweet potato planting materials.
Keywords	tissue culture ; micropropagation ; non-zygotic embryo ; germplasm conservation ; encapsulated nodes ; Agriculture ; S
Subject code	571
Language	English
Publishing date	2022-12-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Transcriptome characterization and expression profile of defense-related genes in pear induced by Meyerozyma guilliermondii

Yan, Yuan / Xiangfeng Zheng / Maurice Tibiru Apaliya / Hongjuan Yang / Hongyin Zhang

Postharvest biology and technology. 2018 July, v. 141

2018

Abstract: Meyerozyma guilliermondii significantly inhibited natural decay of stored pears without adverse effects on storage qualities and induced resistance of pears. It was noticed that M. guilliermondii had a significant effect on the induction of several ... ...

Abstract	Meyerozyma guilliermondii significantly inhibited natural decay of stored pears without adverse effects on storage qualities and induced resistance of pears. It was noticed that M. guilliermondii had a significant effect on the induction of several defense-related genes compared to the control, such as genes coding for phenylalanine ammonia lyase (PAL), peroxidase(POD)and β-1, 3 glucannase (GLU). Furthermore, the expression level of GLU in pears treated with M. guilliermondii increased 105-fold compared to the control at 0 d. These findings indicated that M. guilliermondii enhanced the defense-related mechanism of pears. The transcriptome of pears treated with M. guilliermondii and the control were explored after 3 days, the result showed that 144 genes (Log2 fold change ≥ 2, FDR ＜ 0.05) were significantly up-regulated by the induction of M. guilliermondii, some of which include genes of defense-related enzymes such as G-protein coupled receptor 1-like, cationic peroxidase 1-like and beta-glucosidase 12-like were induced corresponding to PAL, POD and GLU respectively. Defense-related transcription factors such as WRKY9, WRKY31 and some other pathogenesis-related genes like Major allergen Pyr c 1, major allergen Pru ar 1-like and major allergen Pru av 1-like were also induced. These results provided a new insight into the biocontrol mechanism of the antagonist yeast in pears.
Keywords	G-protein coupled receptors ; G-proteins ; Meyerozyma guilliermondii ; adverse effects ; allergens ; beta-glucosidase ; biological control ; fungal antagonists ; gene expression regulation ; genes ; induced resistance ; pathogenesis-related proteins ; pears ; peroxidase ; phenylalanine ammonia-lyase ; transcription factors ; transcriptome
Language	English
Dates of publication	2018-07
Size	p. 63-70.
Publishing place	Elsevier B.V.
Document type	Article
ZDB-ID	1082798-5
ISSN	1873-2356 ; 0925-5214
ISSN (online)	1873-2356
ISSN	0925-5214
DOI	10.1016/j.postharvbio.2018.03.011
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: All-round Evaluation Method for Multi-media Teaching

Yuanwei Du / Chen Han / Hongjuan Yang / Wanchun Duan

Journal of Software, Vol 8, Iss 3, Pp 701-

2013 Volume 708

Abstract: In order to solve the problem that comprehensive effects of multi-media teaching can’t be evaluated systematically in current research, an all-round evaluation system is constructed to evaluate multi-media teaching systematically and omni-directionally ... ...

Abstract	In order to solve the problem that comprehensive effects of multi-media teaching can’t be evaluated systematically in current research, an all-round evaluation system is constructed to evaluate multi-media teaching systematically and omni-directionally by objective element designing, subjective element selecting, and objective-subjective integrating. After that, the all-round evaluation thought for multi-media teaching is discussed by designing evaluation processes and deriving evaluation weights. According to some qualitative or quantitative methods such as Brain Storming, Nominal Group Technique or Analytic Network Process, subjective and objective weight deriving methods and integrating methods for multi-media teaching all-round evaluation are presented finally. A numerical example proves the all-round evaluation method for multi-media teaching is applicable and feasible.
Keywords	multi-media teaching ; all-round evaluation system ; evaluation index ; evaluation weight ; Electronic computers. Computer science ; QA75.5-76.95 ; Instruments and machines ; QA71-90 ; Mathematics ; QA1-939 ; Science ; Q
Language	English
Publishing date	2013-03-01T00:00:00Z
Publisher	ACADEMY PUBLISHER
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Performance Analysis of Physical-layer Network Coding in Decode-and-forward Cooperative Communications

Bo Li / Hongjuan Yang / Weixiao Meng

Information Technology Journal, Vol 12, Iss 6, Pp 1220-

2013 Volume 1226

Abstract: Physical-layer Network Coding (PNC) is an efficient approach that can improve the system spectrum efficiency by allowing two different nodes to transmit their information to a common node simultaneously which can save more time slot resource compared ... ...

Abstract	Physical-layer Network Coding (PNC) is an efficient approach that can improve the system spectrum efficiency by allowing two different nodes to transmit their information to a common node simultaneously which can save more time slot resource compared with Network Coding (NC). In this study, for the purpose of further improving the performance of cooperative networks, a new cooperative diversity scheme which combines Decode-and-forward (DF) protocol and physical-layer network coding, is proposed for a two-hop cooperative system with multiuser. In the proposed scheme, users broadcast their information using quadrature carriers simultaneously and the relay node employs decode-and-forward mode. To check its validity, the Bit Error Rate (BER) and throughput of the proposed scheme, under different propagation cases, are investigated and compared with that of traditional decode-and-forward. The simulation results reveal that the proposed scheme can effectively improve the system performances.
Keywords	throughput ; Network coding ; relay protocol ; multiuser cooperation ; Information technology ; T58.5-58.64 ; Industrial engineering. Management engineering ; T55.4-60.8 ; Technology (General) ; T1-995 ; Technology ; T ; DOAJ:Computer Science ; DOAJ:Technology and Engineering
Subject code	003
Language	English
Publishing date	2013-01-01T00:00:00Z
Publisher	Asian Network for Scientific Information
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Performance of Physical-layer Network Coding in Asymmetric Rayleigh Fading Two-way Relay Communication Systems

Hongjuan Yang / Gang Wang / Bo Li / Rongkuan Liu

Information Technology Journal, Vol 12, Iss 9, Pp 1804-

2013 Volume 1810

Abstract: Physical-layer Network Coding (PNC) has drawn so much attention of wireless communication researchers. However, most of the studies focused on symmetric Two-Way Relay Communication (TWRC) systems. In order to analyze the performance of PNC in asymmetric ... ...

Abstract	Physical-layer Network Coding (PNC) has drawn so much attention of wireless communication researchers. However, most of the studies focused on symmetric Two-Way Relay Communication (TWRC) systems. In order to analyze the performance of PNC in asymmetric scenario, in this study, we classify TWRC systems with Rayleigh fading channels into five asymmetric cases according to different poor channel allocation. In each symmetric and asymmetric case, we provide the detailed signal transmission and processing progress. Then we simulate the Bit Error Rate (BER) performance of PNC either in symmetric or asymmetric cases. From the results, we know that the Phase Asymmetry-Uplink (PA-U) case is the worst and Downlink Channel Asymmetry (DCA) case is the best among the five asymmetric cases. We also conclude that poor uplink channels will provide more severe effect to the performance degradation caused by system asymmetry than poor downlink ones.
Keywords	rayleigh fading ; two-way relay communications ; Physical-layer network coding ; bit error rate ; Information technology ; T58.5-58.64 ; Industrial engineering. Management engineering ; T55.4-60.8 ; Technology (General) ; T1-995 ; Technology ; T ; DOAJ:Computer Science ; DOAJ:Technology and Engineering
Subject code	003
Language	English
Publishing date	2013-01-01T00:00:00Z
Publisher	Asian Network for Scientific Information
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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