1,726,573 research outputs found
QIU, Z.J., WANG, X.L., LIU, Z.Y., YANG, J.F. & ZHANG, S.Z. (2012) Cytological and phylogenetic study of Petrocosmea hexiensis (Gesneriaceae), a new species from Chongqing, China. Phytotaxa, 74, 30–38.
No full textWang, Xiao-Ling (2013): QIU, Z.J., WANG, X.L., LIU, Z.Y., YANG, J.F. & ZHANG, S.Z. (2012) Cytological and phylogenetic study of Petrocosmea hexiensis (Gesneriaceae), a new species from Chongqing, China. Phytotaxa, 74, 30–38. Phytotaxa 89 (2): 64-64, DOI: 10.11646/phytotaxa.89.2.3, URL: http://dx.doi.org/10.11646/phytotaxa.89.2.
Caridina longiacuta, a new species of freshwater atyid shrimp (Decapoda, Atyidae) from Hunan Province, China
No full textGuo, Zhao-Liang, Wang, Xiao-Qing (2005): Caridina longiacuta, a new species of freshwater atyid shrimp (Decapoda, Atyidae) from Hunan Province, China. Zootaxa 1008 (1): 13-20, DOI: 10.11646/zootaxa.1008.1.2, URL: https://biotaxa.org/Zootaxa/article/view/zootaxa.1008.1.
Novel Modeling and Vibration Analysis Method on a Helicopter Drive Train System
Full text linkWhen it comes to analyzing the dynamic characteristics of a geared system, it is common practice to create an equivalent mathematical model for which the rotational velocity is the same for all the elements. In contrast to creating the equivalent system firstly, a novel strategy based on the transfer matrix method is developed, which can directly obtain the equation of motion according to the system topology figure. Actually, any kind of topology of the system, e.g., geared branch or geared closed-loop systems, can be decoupled into a combination of a series of independent chain systems via introducing the virtual branched-gear transfer matrix. The overall transfer equation of the system can be efficiently obtained because the transfer matrix method of a chain system is simply matrix multiplication. The transfer matrices of typical gear types, e.g., reduction gear and planetary gear, are derived. In particular, a simple and aesthetic transfer matrix of rotating beam is derived to solve the rotor blade flapping or lead-lag vibration problems. A dimension reduction strategy is also introduced to address the dimension unmatched issue, further reducing the scale of the overall transfer matrix of the system. At last, an application on modeling an analysis of the coupled flexible rotor blade/engine/tail rotor/drive train system of a helicopter is presented
Replication Data for: Community Pressure and the Spatial Redistribution of Pollution: The Relocation of Toxic Releasing Facilities
No full textReplication data for "Community Pressure and the Spatial Redistribution of Pollution: The Relocation of Toxic Releasing Facilities" (2020-09-13
Replication data for: “The Value of Health Insurance during a Crisis: Effects of Medicaid Implementation on Pandemic Influenza Mortality”
No full textReview of Economics and Statistics: Forthcoming
FIG. 5 Sarsia piriforma Edwards, 1983 A and B in Two new species and four new records of the Sarsia tubulosa group of Sarsia (Cnidaria, Corynidae) from the Bohai Sea of China
No full textFIG. 5 Sarsia piriforma Edwards, 1983 A and B. Lateral viewPublished as part of Wang, Xiao, Chen, Xiao-Yin & Xu, Zhen-Zu, 2022, Two new species and four new records of the Sarsia tubulosa group of Sarsia (Cnidaria, Corynidae) from the Bohai Sea of China, pp. 243-254 in Zootaxa 5189 (1) on page 249, DOI: 10.11646/zootaxa.5189.1.22, http://zenodo.org/record/711951
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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