도시 재생을 위한 공원 디자인

가복우(Jia, Fu-Yu),윤지영(Yoon, Ji young) 한국실내디자인학회 2014 한국실내디자인학회 학술대회논문집 Vol.2014 No.5

City park is one of the main contents of the urban construction, is an important part of urban ecosystem, urban landscape. Is provided can meet the needs of urban residents of the leisure, rest, sightseeing, exercise, communication, and place of all kinds of collective cultural activities. From land to urban park landscape transformation is one of the city land reuse landscape transformation form with special meanings. Landscape transformation of abandoned land is an important way to improve the quality of environment. Will land reform for city parks is an efficient, city landscape change form with special meanings. Design of urban Regeneration Park, need to comply with respect for history, sustainability strengthen emotional, completeness, people-oriented principle. With examples and literature regeneration park structure, sequence analysis, from the constituent elements of narrative of the Regeneration Park and Regeneration Park to commemorate the direction of the performance aspects discussed, formed Regeneration Park design techniques and strategies.

Preparation and Catalytic Performance of Amidoximated Polyacrylonitrile Bimodal Nanofiber Iron Complexes

Fu Li,Pengfei Fei,Yongchun Dong,Man Zhang,Yu Feng,Shuqiang Liu,Lu Jia,Hulin Zhang,Zhen Ni 한국섬유공학회 2022 Fibers and polymers Vol.23 No.5

To balance the specific surface area and porous structure of nanofibrous heterogeneous Fenton catalyst for therapid transfer of dye molecules during dye-containing wastewater treatment, a polyacrylonitrile nanofiber with bimodaldiameter distribution (n-PAN-D) was prepared and amidoximated, followed by coordinating with Fe3+ ion (Fe-AO-n-PAND). The modification and coordination process hardly changed the fiber morphology and bimodal diameter distribution ofnanofiber membrane. The amidoximated degree of n-PAN-D increased with the increase of the diameter difference, and thecoordination ability of amidoximated n-PAN-D decreased with increasing the diameter difference. Fe-AO-n-PAN-D hadbetter catalytic activity than those with similar thick or thin nanofiber diameters due to the rapid mass transfer of dyemolecules in the catalyst. The possible oxidation and degradation pathway of Reactive Red 195 in the Fe-AO-n-PAN-D/H2O2system was proposed. And the series of reactions may not gradually occur because of the non-selective oxidation of ·OH. Thegood reusability of Fe-AO-n-PAN-D made it potential carrier for heterogeneous Fenton catalyst in wastewater treatment.

End Plate–Stiff ener Connection for SHS Column and RHS Beam in Steel-Framed Building Modules

Fu Jia Luo,Chenting Ding,Adam Styles,Yu Bai 한국강구조학회 2019 International Journal of Steel Structures Vol.19 No.4

This paper investigates the mechanical performance of beam-to-column connections for steel-framed building modules with RHS and SHS sections of relatively small member sizes. In the experimental program, three forms of connections are tested under static bending, including a completely welded connection (W), a bolted end plate connection (EP) and the proposed end plate–stiff ener connection (ST), and the failure modes, moment–rotation behaviours and strain responses were recorded during experiments. Results show that ST connection exhibited superior connection strength, stiff ness and ductility compared with the EP connection. In addition, a detailed fi nite element analysis was conducted to model the connection behaviours, considering bolt pretension, contact behaviours and detailed bolt geometry, showing good comparison with experiments. Furthermore, a parametric study was performed on the end plate thickness and stiff ener thickness for the proposed end plate–stiff ener connection. Such results fi nally enable a comparative study to investigate the performance of module during road transportation, highlighting the eff ects of connection stiff ness.

Identification of flight task using ensemble empirical mode decomposition based analysis method

Biting Yu,Bo Jia,Qi Wu,Yanyu Lu,Dan Huang,Shan Fu 제어로봇시스템학회 2015 제어로봇시스템학회 국제학술대회 논문집 Vol.2015 No.10

To analyse the difficulty of flight tasks, a novel method was presented in this paper using pupil diameter of pilots. The proposed method integrated ensemble empirical mode decomposition (EEMD) and ratio of high to low frequency wavelet coefficients energy to identify pupil data under different tasks from 5 crews. Compared to the extraction method using wavelet energy entropy, the proposed method got more obvious difference between manual departure and standard instrument departure. The results indicated that the difficulty of flight tasks could be distinguished by pupil diameter of pilots.

A high-resolution timescale for the Miocene Shanwang diatomaceous shale lagerstätte (China): development of Wavelet Scale Series Analysis for cyclostratigraphy

Jifeng Yu,Xinlong Pang,Wenzhao Fu,Jason Hilton,Mingmei Liang,Zongkai Jiang,Xiuli Zhao,Wenyan Qiao,Suo Shi,Diandong Zhang,Huitao Cao,Haibo Jia,Yadong Wang,Xiaoke Hu,Rui Zhang 한국지질과학협의회 2021 Geosciences Journal Vol.25 No.5

The Miocene aged Shanwang Formation from the Shanwang National Geopark in China represents a succession of lacustrine diatomaceous shales containing an abundant and diverse biota with lagerstätte fossilization of soft tissues. To date, the Shanwang Formation has not been investigated for cyclostratigraphy nor has it been dated with high precision methods. Now we use thorium data as a paleoenvironmental and paleoclimatic proxy to conduct a detailed cyclostratigraphic analysis. A new and simple cyclostratigraphic method, Wavelet Scale Series Analysis (WSSA) is developed to recognize Milankovitch cycles. A total of three short eccentricity and fifteen precession cycles are identified; obliquity cycles are not apparent. In the sedimentary succession, the corresponding precession and short eccentricity cycles are 1.17 m and 4.98 m thick respectively, with this verified by Correlation Coefficient (COCO) analysis and Multitaper-Method (MTM) spectral analysis. We estimate the studied interval was deposited over a duration of 0.3 Myr with a depositional rate of c. 5.7 cm/kyr. Paleomagnetic and radio isotope dating data shows that the diatomaceous shale was deposited during Chron C5En, which places it at approximately 18.5 Ma during the Burdigalian stage of the Early Miocene, rather than in the Middle Miocene as previously thought. The Shanwang lagerstätte biota therefore predates the Middle Miocene Climate Optimum (MMCO) and did not form within it. The geological time scale with a high resolution of 20 kyr was set accordingly.

Cloning and differential expression of three heat shock protein genes associated with thermal stress from the wolf spider Pardosa pseudoannulata (Araneae: Lycosidae)

Sun Liang-Yu,Liu Jing,Li Qin,Fu Di,Zhu Jia-Yun,Guo Jian-Jun,Xiao Rong,Jin Dao-Chao 한국응용곤충학회 2021 Journal of Asia-Pacific Entomology Vol.24 No.1

Pardosa pseudoannulata is the main predatory natural enemy of crop pests in a paddy ecosystem. When P. pseudoannulata is exposed to unfavorable temperature conditions, the response of heat shock proteins could resist the damage, and is therefore, conducive to the organism’s rapid adaptation to the surrounding stress environ ment. In this study, we explored the roles of hsp70 and hsp90 genes in response to heat stress, using the rapid amplification of cDNA ends technique and cloned full-length cDNAs of Pphsp70, Pphsp83, and Pphsp90. The mRNA expression levels of the three genes under different temperature stresses (25, 28, 31, 34, 37, 40, and 43 ◦ C) and with different duration stresses (4, 8, 12, 16, and 20 h) were analyzed by quantitative real-time polymerase chain reaction. The full-length cDNA of Pphsp70, Pphsp83, and Pphsp90 was 2331 base pair (bp), 2466 bp, and 2663 bp, respectively. Phylogenetic analysis of amino acid sequences of Pphsp70, Pphsp83, and Pphsp90 showed that the sequences had high homology with that of other spiders. The mRNA expression of all three genes was extremely significantly up-regulated at 43 ◦ C. Moreover at 43 ◦ C, the expression of all three genes in both female and male spiders at the duration of 4 h was the highest compared to that of other stress duration groups. Therefore, it can be inferred that the three genes of P. pseudoannulata play a crucial protective role in resistance in a high-temperature environment.

Dark current suppression of amorphous selenium based photosensors by the ZnO hole blocking layer

Tung-Yuan Yu,Fu-Ming Pan,Cheng-Yi Chang,Tien Hu,Jenn-Fang Chen,Jia-Feng Wang,Jia-Feng Wang,Cheng-Lu Lin,Te-Ming Chen 한국물리학회 2014 Current Applied Physics Vol.14 No.5

To study the influence of defects in the hole blocking layer (HBL) on the dark current of amorphous selenium (a-Se) based photosensors, we prepared ZnO thin films by reactive sputter deposition (RSD) for the use as the HBL of the photosensors. The ZnO HBL layers prepared with different oxygen flow rates were characterized by X-ray photoelectron spectroscopy, Raman scattering analysis and photoluminescence, indicating that the density of oxygen vacancies in the ZnO thin films is significantly affected by the oxygen flow rate. The deep level transient spectroscopy measurement reveals two hole trap levels present in the RSD deposited ZnO thin films; one is at 0.94 eV and the other at 0.24 eV above the valence band edge. The electrical performance of the a-Se photosensor is largely influenced by the amount of oxygen vacancies in the ZnO thin film. The a-Se photosensor with the ZnO HBL of the most oxygen vacancies has the lowest dark current and demonstrates the highest breakdown field.

Anti-invasive and Anti-metastatic Effects of Arg-asp (Rd) on Human Salivary Adenoid Cystic Carcinoma

Li, Fenghe,Yu, Guangyan,Li, Shenglin,Peng, Shiqi,Fu, Jia,Wu, Dengcheng Korean Academy of Oral Biology and the UCLA Dental 2001 International Journal of Oral Biology Vol.26 No.3

The objective of the present study is to test the anti-invasive and anti-metastatic effect of Arg-Asp (RD), a newly developed peptide with the same effect as that of RGD, on SACC-LM (a highly pulmonary metastatic salivary adenoid cystic carcinoma cell line) cells. The ability of SACC-LM cells to invade in a modified Boyden chamber was inhibited by 56%, 64% and 65% when the final concentration of RD was 1, 5, and 25㎍/ml, respectively. The anti-metastatic effect of orally administered RD on experimental metastatic SACC-LM was observed by the survival rate and the number of pulmonary metastatic foci/mouse. When RD (7.5, 30, and 120mg/kg) was administered orally the survival rate increased in the treated mice 66.14(14.47), 64.75(8.43), 69.86(12.77) days, respectively, compared with 43.56 (4.95) days in the control mice (p<0.05). The number of pulmonary metastatic foci decreased significantly (6.5 Vs 20.29, p<0.05) for 120mg/kg RD, whereas the incidence of pulmonary metastasis was not significantly decreased at lower doses of RD. The results of this study suggest that RD has low toxicity and possesses an anti-invasive and anti-metastatic effect on SACC-LM and that RD may be administered orally.

Access-Authorizing and Privacy-Preserving Auditing with Group Dynamic for Shared Cloud Data

( Wenting Shen ),( Jia Yu ),( Guangyang Yang ),( Yue Zhang ),( Zhangjie Fu ),( Rong Hao ) 한국인터넷정보학회 2016 KSII Transactions on Internet and Information Syst Vol.10 No.7

Cloud storage is becoming more and more popular because of its elasticity and pay-as-you-go storage service manner. In some cloud storage scenarios, the data that are stored in the cloud may be shared by a group of users. To verify the integrity of cloud data in this kind of applications, many auditing schemes for shared cloud data have been proposed. However, all of these schemes do not consider the access authorization problem for users, which makes the revoked users still able to access the shared cloud data belonging to the group. In order to deal with this problem, we propose a novel public auditing scheme for shared cloud data in this paper. Different from previous work, in our scheme, the user in a group cannot any longer access the shared cloud data belonging to this group once this user is revoked. In addition, we propose a new random masking technique to make our scheme preserve both data privacy and identity privacy. Furthermore, our scheme supports to enroll a new user in a group and revoke an old user from a group. We analyze the security of the proposed scheme and justify its performance by concrete implementations.

Single Nucleotide Polymorphisms of NLRP12 Gene and Association with Non-specific Digestive Disorder in Rabbit

Liu, Yun-Fu,Zhang, Gong-Wei,Xiao, Zheng-Long,Yang, Yu,Deng, Xiao-Song,Chen, Shi-Yi,Wang, Jie,Lai, Song-Jia Asian Australasian Association of Animal Productio 2013 Animal Bioscience Vol.26 No.8

The NLRP12 (NLR family, pyrin domain containing 12) serves as a suppressor factor in the inflammatory response and protects the host against inflammation-induced damage. In the present study, we aimed to study the polymorphisms of NLRP12 gene and its association with susceptibility to non-specific digestive disorder (NSDD) in rabbits. We re-sequenced the entire coding region of the rabbit NLRP12 gene and detected a total of 19 SNPs containing 14 synonymous and five non-synonymous variations. Among them, the coding SNP (c.1682A>G), which would carry a potential functional implication, was subsequently subjected to genotyping for case-control association study (272 cases and 267 controls). The results revealed that allele A was significantly protective against NSDD with an odds ratio value of 0.884 (95% confidence interval, 0.788 to 0.993; p = 0.038). We also experimentally induced NSDD in growing rabbits by feeding a fibre-deficient diet and subsequently investigated NLRP12 mRNA expression. The mRNA expression of NLRP12 in healthy status was significantly higher than that in severe NSDD (p = 0.0016). The highest expression was observed in individuals carrying the protective genotype AA (p = 0.0108). These results suggested that NLRP12 was significantly associated with the NSDD in rabbits. However, the precise molecular mechanism of NLRP12 involving in the development of rabbit NSDD requires further research.