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TING-TING ZHANG,TING-TING GUO,ZHI-PING WU,SI-WEI YANG,ZHOU-FENG WANG,FANG LIAO 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2013 NANO Vol.8 No.5
In this paper, a new simple approach has been developed for the preparation of α-Fe2O3 microspheres by a facile hydrothermal method using PVP as a surfactant. Uniform α-Fe2O3 microspheres could be routinely synthesized through solvothermal approach by controlling the PVP/FeCl3⋅6H2O ratio. The as-obtained α-Fe2O3 microspheres exhibit high efficiency on the decolorization of RhB aqueous solution in the presence of H2O2 at room temperature.
Cushion Polyurethane Sandwich Composite Structures Strengthened by a Concave-Convex Fabric Panels
Ting-Ting Li,Peiyao Liu,Bing-Chiuan Shiu,Hongyang Wang,Hao-Kai Peng,Jia-Horng Lin,Ching-Wen Lou 한국섬유공학회 2022 Fibers and polymers Vol.23 No.12
In order to improve the low velocity impact resistance, flexible PU foam composites (FPUC) with a sandwichstructure are proposed. The interlayer is composed of a concave-convex fabric structure while the top/bottom layers are madeof polyurethane foam (PU). The core is prepared as follows. Seven warp knitted spacer fabric types (WKSF) (WKSF.1-7) arelaminated with different number of layers to form cuboids, which are fixed firmly between two layers of low melting pointpolyester (LMPET) fabrics via hot melting. The effects of spacer yarn density, spacer yarn inclination angle, combination ofspacer fabrics, and number of lamination layers on the dynamic cushion performance are evaluated. With the impact energybeing 16 J, FPUs demonstrate an energy absorption level that is 19 % and 39 % greater than PU and WKSF. Furthermore,ultra-high molecular weight polyethylene fabric can effectively enhance the surface strength. Finally, the results arecomputed via theoretical prediction formulae of dynamic buffer resistance is in conformity with the experimental test results.
Dispersal and Control of Anammox Granular Sludge at High Substrate Concentrations
Ting-Ting Chen,Ping Zheng,Li-Dong Shen,Chong-Jian Tang,Shuang Ding 한국생물공학회 2012 Biotechnology and Bioprocess Engineering Vol.17 No.5
This paper reports about the dispersal and control of anammox granular sludge at high substrate concentrations. The results demonstrate that anammox granular sludge would turn into flocculent sludge when the substrate concentrations exceed the inhibitory threshold concentrations, with an apparent drop in the settling velocity of anammox sludge from 73.73 to 16.49 m/h. Moreover, the sludge was washed out of the reactor and a decrease in the nitrogen removal rate from 23.82 to 16.97kg N/(m3/day) was observed. The dominant anammox bacteria in the granular and flocculent sludge were Candidatus Kuenenia stuttgartiensis; however, the contents of heme c and extracellular polymeric substances in the flocculent sludge were much lower than in the granular sludge. Furthermore, the chemical composition of extracellular polymeric substances was different. The high nitrite concentrations more than the inhibitory threshold concentrations were regarded as the reason for the observed granular sludge dispersal and deterioration in reactor performance. The apparent dispersed granular sludge and malfunction of reactor performance could be recovered by means of washing out the residual substrate from the reactor and then re-running the reactor from low substrate concentrations.
Effect of HPFRCC on Seismic Performance of Beam-Column-Slab Subassembly
Ting-Ting Lu,Xing-Wen Liang 대한토목학회 2020 KSCE JOURNAL OF CIVIL ENGINEERING Vol.24 No.12
High performance fiber reinforced cementitious composites (HPFRCC) material exhibits strain-hardening and multiple cracking behaviors. Using HPFRCC in the reinforced concrete (RC) frame is considered to improve the seismic performance and damage mechanism of structure. Three beam-column-slab subassemblies were tested under cyclic loading, and eight frame models were simulation by ABAQUS. In this paper, the effect of substitution of concretewith HPFRCC on the seismic performance and damage mechanism of subassemblies was investigated. According to the test results, the lateral bearing capacity and deformability of beam-column-slab subassemblies increased by above 10% through using the HPFRCC material in the expected damage positions. The shear resistance of the joint zone with HPFRCC material increased by 1.6%, the shear deformation of the joint zone decreased by 7.9%. And the contribution of slab bars to the beam flexural bearing strength also decreased for that the yielding range and the strain amplitude of slab bars are limited through using HPFRCC material. Consequently, the subassemblies were prone to the “strong column - weak beam” damage mechanism to using HPFRCC material in the expected damage positions.
Ting-Ting Su,Wen-Feng Ren,Jiang-Meng Yuan,Ke Wang,Bing-Yu Chi,Run-Cang Sun 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.109 No.-
The commercial application of silicon (Si) anodes with high theoretical capacity is hampered by the poorcyclic stability because the huge volume change of Si during discharge/charge processes results in thepulverization of electrode materials and the electric contact loss of electrode materials with copper(Cu) foils. Binders play an important role for adhering active materials and conductive additives togetheronto Cu foils. Herein, we design and develop a three-dimensional networked composite binder (PAA-co-SN) via an amidation reaction between polyacrylic acid (PAA) and thiourea (SN). The granular anchors(CuxS) are constructed at the interface between PAA-co-SN binders and Cu foils, resulting from the reactionof S and Cu during the drying processes of Si electrodes. When used as binders for Si nanoparticles,they exhibit stable cyclic performance (1580 mAh g1 after 500 cycles). The anchoring mechanismbetween composite binders and Cu foils provides a strategy for the improvement of electrochemicalproperties of Si-based anodes for lithium-ion batteries.
Flavihumibacter profundi sp. nov., isolated from eutrophic freshwater sediment
Ting-Ting Ren,Chunzhi Jin,Feng-Jie Jin,Taihua Li,김창진,오희목,이형관,Long Jin 한국미생물학회 2018 The journal of microbiology Vol.56 No.7
A Gram-stain-positive, aerobic, non-motile, non-spore-forming, and rod-shaped bacterium, designated strain CHu64- 6-1T, was isolated from a 67-cm-long sediment core collected from the Daechung Reservoir at a water depth of 17-m in Daejeon, Republic of Korea. Comparative 16S rRNA gene sequence studies placed the new isolate in the class Sphingobacteriia, and the isolate is notably most closely related to Flavihumibacter sediminis CJ663T (98.1% similarity), Flavihumibacter solisilvae 3-3T (97.8%), Flavihumibacter petaseus T41T (97.5%), Flavihumibacter cheonanensis WS16T (97.4%), and Flavihumibacter stibioxidans YS-17T (97.2%). The cells of strain CHu64-6-1T formed yellow colonies on R2A agar and contained MK-7 as the only menaquinone, phosphatidylethanolamine, an unidentified phospholipid, and two unidentified aminolipids as the major polar lipids, and C15:0 iso, C17:0 iso 3-OH, C15:1 iso G, and C16:1 ω5c as the major fatty acids (> 5%). The DNA G + C content of the genome was determined to be 46.5 mol%. The DNA-DNA hybridization values of strain CHu64-6-1T with F. sediminis CJ663T, F. solisilvae 3-3T, F. petaseus T41T, F. cheonanensis WS16T, and F. stibioxidans YS-17T were 12.4–33.2%. Based on the combined genotypic and phenotypic data, we propose that strain CHu64-6-1T represents a novel species of the genus Flavihumibacter, for which the name Flavihumibacter profundi sp. nov. is proposed. The type strain is CHu64-6-1T (= KCTC 62290T = CCTCC AB 2018060T).
Ting Ting Wu,Bo Ra Hwang,Eun Ju Cho 한국식품영양과학회 2011 Preventive Nutrition and Food Science Vol.16 No.3
The radical scavenging activity and inhibition effect from lipid peroxidation induced by peroxyl radical of methanol extract from Perilla frutescens and its active compound, rosmarinic acid (RA), were investigated in vitro. The treatment of extract and RA scavenged 1,1-diphenyl-2-picrylhydrazyl, hydroxyl radical (·OH) and nitric oxide in a concentration-dependent manner. In particular, the extract and RA showed strong radical scavenging activity against ·OH, the most toxic and reactive radical. In addition, Perilla frutescens and RA effectively inhibited lipid oxidation induced by sodium nitroprusside and 2, 2'-azobis(2-aminopropane) dihydrochloride, determined by the ferric thiocyanate method. The present results suggest that Perilla frutescens and RA play a protective role against oxidative stress induced by free radical and lipid peroxidation.
Ting-Ting Chen,Junfen Xu,Bairong Xia,Hui Wang,Yuanming Shen 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.1
Background: Epithelial ovarian cancer is the leading cause of death among gynecologicalmalignancies. Platinum resistance remains a dilemma and bottleneck in treatment, andsalvage chemotherapy has limited effectiveness. Recently, the role of secondar y cytoreductivesurger y (SCS) in patients with platinum-resistant recurrent ovarian cancer (ROC) has causedattention especially in patients with oligometastases. However, there is neither high-qualityevidence-based evidence nor standardized criteria for selecting SCS for patients withplatinum-resistant ROC until now. Methods: This multicenter, randomized, controlled clinical trial is to evaluate the valueof SCS and to clarif y reliable criteria of utilizing SCS in women with ROC, which is led byGynecologic Oncology Group, Women’s Hospital, Zhejiang University School of Medicine. Recruitment has started on Januar y 1st, 2023, and is scheduled to end in December 2026. One hundred and forty participants with platinum-resistant ROC who meet the “RSCScriteria” will be randomized assigned at a ratio of 1:1 to either the experimental arm or thestandard arm. Patients in the experimental arm will receive SCS followed by non-platinumsingle agent chemotherapy (paclitaxel, gemcitabine or liposomal adriamycin) for at least4 cycles while patients in the standard arm will be provided with only non-platinum singleagent chemotherapy. The primar y outcome is progression-free sur vival. The secondar youtcomes are overall sur vival, adverse events and health-related cancer-specific quality of life. Trial Registration: ClinicalTrials.gov Identifier: NCT05633199