On $\pi\mathfrak{F}$-embedded subgroups of finite groups

Wenbin Guo,Haifeng Yu,LI ZHANG 대한수학회 2016 대한수학회보 Vol.53 No.1

A chief factor $H/K$ of $G$ is called $\mathfrak{F}$-central in $G$ provided $(H/K)\rtimes (G/C_{G}(H/K))\in\mathfrak{F}$. A normal subgroup $N$ of $G$ is said to be $\pi\mathfrak{F}$-hypercentral in $G$ if either $N=1$ or $N\neq1$ and every chief factor of $G$ below $N$ of order divisible by at least one prime in $\pi$ is $\mathfrak{F}$-central in $G$. The symbol $Z_{\pi\mathfrak{F}}(G)$ denotes the $\pi\mathfrak{F}$-hypercentre of $G$, that is, the product of all the normal $\pi\mathfrak{F}$-hypercentral subgroups of $G$. We say that a subgroup $H$ of $G$ is $\pi\mathfrak{F}$-embedded in $G$ if there exists a normal subgroup $T$ of $G$ such that $HT$ is $s$-quasinormal in $G$ and $(H\cap T)H_G/H_G\leq Z_{\pi\mathfrak{F}}(G/H_G)$, where $H_G$ is the maximal normal subgroup of $G$ contained in $H$. In this paper, we use the $\pi\mathfrak{F}$-embedded subgroups to determine the structures of finite groups. In particular, we give some new characterizations of $p$-nilpotency and supersolvability of a group.

ON π-EMBEDDED SUBGROUPS OF FINITE GROUPS

Guo, Wenbin,Yu, Haifeng,Zhang, Li Korean Mathematical Society 2016 대한수학회보 Vol.53 No.1

A chief factor H/K of G is called F-central in G provided $(H/K){\rtimes}(G/C_G(H/K)){\in}{\mathfrak{F}}$. A normal subgroup N of G is said to be ${\pi}{\mathfrak{F}}$-hypercentral in G if either N = 1 or $N{\neq}1$ and every chief factor of G below N of order divisible by at least one prime in ${\pi}$ is $\mathfrak{F}$-central in G. The symbol $Z_{{\pi}{\mathfrak{F}}}(G)$ denotes the ${\pi}{\mathfrak{F}}$-hypercentre of G, that is, the product of all the normal ${\pi}{\mathfrak{F}}$-hypercentral subgroups of G. We say that a subgroup H of G is ${\pi}{\mathfrak{F}}$-embedded in G if there exists a normal subgroup T of G such that HT is s-quasinormal in G and $(H{\cap}T)H_G/H_G{\leq}Z_{{\pi}{\mathfrak{F}}}(G/H_G)$, where $H_G$ is the maximal normal subgroup of G contained in H. In this paper, we use the ${\pi}{\mathfrak{F}}$-embedded subgroups to determine the structures of finite groups. In particular, we give some new characterizations of p-nilpotency and supersolvability of a group.

Aspirin in the Form of Microneedle Repairs DNA and Reduces Inflammation in Persistent Skin Damage

Wenbin Cao,Huanchun Xing,Shuai Guo,Lin Wang,Xin Sui,Lijuan Huang,Yuan Luo,Jun Yang,Yongan Wang 한국생체재료학회 2024 생체재료학회지 Vol.28 No.00

Skin damage caused by chemical corrosion is currently one of the common skin diseases and poisoning symptoms, with nitrogen mustard compounds causing the most persistent and severe damage. These chemicals penetrate the top layer of the skin, enter the dermis, and cause DNA damage, oxidative stress, and inflammation. However, to date, no effective drug treatment has been found. Even the potential antidotes could not effectively penetrate the top layer of the skin to exert their effects due to the skin barrier. To address this problem, an innovative transdermal drug delivery strategy based on aspirin microneedles was proposed. The classic medicine aspirin was first discovered not only to reduce inflammation and oxidative stress but also to promote DNA repair and reduce DNA damage. The aspirin microneedles directly delivered the drug to the damaged area, released aspirin through the skin barrier, and exhibited good biocompatibility. These findings indicate that aspirin microneedles have great potential for promoting wound healing and broad application prospects.

Mold design and forming process parameters optimization for passenger vehicle front wing plate

Wenbin Luo,Lingfeng Tang,Fucheng Guo 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.1

The main objective of the present article is to solve the problems of poor molding quality, large warpage, inadequate cooling effect and unsuitable selection of process parameters, in the injection molding process for passenger vehicle front-end plastic wing plate. The thickness and parting surface of the vehicle front-end fender were determined, the injection mold and its cooling system were designed. The relevant process parameters, affecting the product molding quality, were tested, according to orthogonal experimental approach, while their influence on the warpage was obtained, by analyzing the data. Finally, the BP neural network of warpage model was established and globally optimized using genetic algorithm. The optimal parameter combination of the injection molding process was derived as: melt temperature 236 °C, mold temperature 51 °C, cooling time 32 s, packing pressure 97 MPa and packing time 16 s.

Performance study of g-C3N4/carbon black/BiOBr@Ti3C2/MoS2 photocatalytic fuel cell for the synergistic degradation of different types of pollutants

Guo Huilin,Yu Tingting,Zhao Lei,Qian Jun,Yu Jiahe,Zhang Yu,Teng Yongyue,Zhu Chunshui,Yang Tao,Chen Wenbin,Gong Picheng,Jiang Cuishuang,Gao Changfei,Yang Bing,Yang Chenyu 한국탄소학회 2023 Carbon Letters Vol.33 No.3

In this study, a bipolar visible light responsive photocatalytic fuel cell (PFC) was constructed by loading a Z-scheme g-C3N4/carbon black/BiOBr and a Ti3C2/MoS2 Schottky heterojunction on the carbon brush to prepare the photoanode and photocathode, respectively. It greatly improved the electron transfer and achieved efficient degradation of organic pollutants such as antibiotics and dyes simultaneously in two chambers of the PFC system. The Z-scheme g-C3N4/carbon black/BiOBr formed by adding highly conductive carbon black to g-C3N4/BiOBr not only effectively separates the photogenerated carriers, but also simultaneously retains the high reduction of the conduction band of g-C3N4 and the high oxidation of the valence band of BiOBr, improving the photocatalytic performance. The exceptional performance of Ti3C2/MoS2 Schottky heterojunction originated from the superior electrical conductivity of Ti3C2 MXene, which facilitated the separation of photogenerated electron–hole pairs. Meanwhile, the synergistic effect of the two photoelectrodes further improved the photocatalytic performance of the PFC system, with degradation rates of 90.9% and 99.9% for 50 mg L−1 tetracycline hydrochloride (TCH) and 50 mg L−1 rhodamine-B (RhB), respectively, within 180 min. In addition, it was found that the PFC also exhibited excellent pollutant degradation rates under dark conditions (79.7%, TCH and 97.9%, RhB). This novel pollutant degradation system is expected to provide a new idea for efficient degradation of multiple pollutant simultaneously even in the dark.

Application of adaptive local iterative filtering in axis trace purification of turbine generator rotor

Wenbin Zhang,Jie Min,Yun Wang,Yasong Pu,Jie Jiang,Dewei Guo,Libin Yu 대한기계학회 2022 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.36 No.6

In order to solve the problem that the measured axis trace is polluted by noise and can not reflect the real fault type of the turbine generator rotor, the adaptive local iterative filtering is applied to the purification of the axis trace of the generator rotor. As an adaptive mode decomposition method, adaptive local iterative filtering can adaptively decompose a complex original signal into a series of single components reflecting the wave nature of the signal, then, by calculating the correlation coefficient between the autocorrelation function of each decomposition component and the autocorrelation function of the original signal, the real intrinsic mode function is extracted, finally, the extracted intrinsic mode function is used to synthesize the signal to purify the axis trace. The simulation analysis and the purification results of the measured axis trace show that the adaptive local iterative filter can effectively avoid the false components in the decomposition process and is more favorable for extracting the signal features by introducing the Fokker-Planck equation to design the filter, compared with ensemble empirical mode decomposition, this method has better purification performance.

Effects of Source of Supplemental Zinc on Performance, Nutrient Digestibility and Plasma Mineral Profile in Cashmere Goats

Jia, Wenbin,Zhu, Xiaoping,Zhang, Wei,Cheng, Jianbo,Guo, Cuihua,Jia, Zhihai Asian Australasian Association of Animal Productio 2009 Animal Bioscience Vol.22 No.12

This experiment was designed to evaluate the effects of source of supplemental zinc (Zn) on performance, nutrient digestibility and plasma mineral profile in Cashmere goats during the cashmere fiber growing period. Twenty-seven Liao Ning Cashmere wether goats (9-10 month of age; initial BW = 19.31${\pm}$0.32 kg) were fed a basal diet (containing 22.3 mg Zn/kg DM) with no supplemental Zn (control) or 20 mg of supplemental Zn/kg of DM from Zn sulfate ($ZnSO_{4}$) or Zn methionine (ZnMet) for 60 days including a 10-day metabolism trial. Average daily gain (ADG) (p<0.05) and gain:feed (G/F) (p<0.05) were increased by Zn supplementation, but no differences were noted between Zn sources (p>0.05). The length and diameter of cashmere fiber did not differ among treatments (p>0.05). Zn supplementation had no influence on digestibility of DM, CP, EE and NDF (p>0.05). However, ADF digestibility in the group supplemented with ZnMet was significantly higher than in other treatments (p<0.05). Plasma Zn was increased (p<0.05) and Cu tended to be decreased (p = 0.057) by Zn supplementation, but no differences were found between Zn sources (p>0.05). Plasma alkaline phosphatase activity (AKP) was improved by Zn supplementation (p<0.05) and was higher in the $ZnSO_{4}$ than the ZnMet group (p<0.05). Zn retention was increased (p<0.05) and apparent absorption rate was decreased (p<0.05) by Zn supplementation. The results indicate that supplementation of 20 mg Zn/kg DM either as $ZnSO_{4}$ or ZnMet in the basal diet containing 22.3 mg Zn/kg DM can improve growth performance in Cashmere goats, and effectiveness of the two sources is similar on performance measurements.

Use of Fluorescence Imaging in Combination with Patent Blue Dye versus Patent Blue Dye Alone in Sentinel Lymph Node Biopsy in Breast Cancer

Meng Tong,Wenbin Guo,Wei Gao 한국유방암학회 2014 Journal of breast cancer Vol.17 No.3

Purpose: Near-infrared fluorescence imaging with indocyaninegreen (ICG) has the potential to improve sentinel lymph node(SLN) mapping in breast cancer. In this clinical trial, we comparedthe potential value of ICG combined with blue dye withthat of blue dye alone for detecting SLNs. Methods: Patients undergoingSLN biopsy (SLNB) between November 2010 and November2013 were included. Up to December 2011, SLNs weredetected by using patent blue (PB) alone, and since January2012, by using PB in combination with ICG. The patients weredivided into the following two groups: group A (ICG-PB; n=96)and group B (PB; n=73), and SLN detection parameters werecompared between the groups. All patients underwent level Iand II axillary dissections after SLNB. Results: In group A, theSLN detection rate was 96.9% (93/96), the accuracy of detectionwas 98.9% (92/93), and the false-negative rate (FNR) was3.4% (1/29). In group B, the SLN detection rate was 84.9%(62/73), the accuracy of detection was 96.8% (60/62), and theFNR was 11.1% (2/18). The ICG-PB group showed significantlysuperior results compared to the PB group for SLN detection(p=0.005) and a greatly improved FNR. Conclusion: The combinedfluorescence and blue dye-based tracer technique wassuperior to the use of blue dye alone for identifying SLNs, andfor predicting axillary lymph node status in patients with breastcancer; in addition, the combined technique had reduced falsenegativeresults.

Identification of MKI67, TPR and TCHH mutations as prognostic biomarkers for patients with defective mismatch repair in stage II/III colon cancer

Jingfang Lv,Wenbin Li,Lei Guo,Xintong Wang,Dongliang Wang,Beifang Niu,Xishan Wang,Zheng Liu 대한종양외과학회 2022 대한임상종양학회 학술대회지 Vol.2022 No.2

Identification and characterization of conserved and novel microRNAs in Xanthoceras sorbifolium via deep sequencing

Quanxin Bi,Bin Guo,Dongxu Zhang,Wenbin Guan 한국유전학회 2015 Genes & Genomics Vol.37 No.3

Xanthoceras sorbifolium is an economicallyimportant woody plant in China. Plant microRNAs (miRNAs)play a vital role in plant development. We usedSolexa technology to sequence a small RNA library fromthe buds, young and mature leaves, flowers, and developingseeds (10, 30, and 60 days after pollination) of X. sorbifoliumto identify conserved and novel miRNAs. Sequenceanalysis identified 49 conserved miRNAs belonging to 19miRNA families, as well as four novel miRNAs. An analysisof 10 miRNA sequences by qRT-PCR showed that allsequences were expressed and that they were dynamicallyregulated in different tissues. Finally, seven targets of thenovel miRNAs were predicted. This study opens up a newavenue for understanding the roles of miRNAs in X. sorbifolium.