Layout Optimization Method of Railway Transportation Route Based on Deep Convolution Neural Network

Cong Qiao,Qifeng Gao,Huayan Xing 한국정보처리학회 2023 Journal of information processing systems Vol.19 No.1

To improve the railway transportation capacity and maximize the benefits of railway transportation, a methodfor layout optimization of railway transportation route based on deep convolution neural network is proposedin this study. Considering the transportation cost of railway transportation and other factors, the layout modelof railway transportation route is constructed. Based on improved ant colony algorithm, the layout model ofrailway transportation route was optimized, and multiple candidate railway transportation routes were output. Taking into account external information such as regional information, weather conditions and actual informationof railway transportation routes, optimization of the candidate railway transportation routes obtained bythe improved ant colony algorithm was performed based on deep convolution neural network, and the optimalrailway transportation routes were output, and finally layout optimization of railway transportation routes wasrealized. The experimental results show that the proposed method can obtain the optimal railway transportationroute, the shortest transportation length, and the least transportation time, maximizing the interests of railwaytransportation enterprises.

Adsorption and sensing characteristics of air decomposed species onto pyridine-like PdN3-doped CNT: a first-principles study

Cong Hu,Qiao Shi,Yang Xin,Wu Tian,Pu Ziheng 한국탄소학회 2022 Carbon Letters Vol.32 No.1

This work using first-principles theory proposed PdN3-doped CNT (PdN3-CNT) as a potential gas sensor for detection of NO, NO2 and O3 in the air insulated equipment, to evaluate its operation status. Results indicate that the PdN3-CNT behaves chemisorption upon three gas species, with adsorption energy (Ead) of − 2.15, − 1.91 and − 1.96 eV, and charge-transfer (QT) of − 0.141, − 0.325 and − 0.419 e, respectively. The band structure (BS) and density of state (DOS) analysis reveal that the gas adsorptions cause remarkable deformations in the electronic property of the PdN3-CNT, leading to the increase of the bandgap for the gas adsorbed systems and verifying the strong binding force of the bonded atoms from the orbital DOS. Combined with the results by frontier molecular orbital theory, we presume that PdN3-CNT is a promising sensing material to be explored as a resistance-type gas sensor for detection of NOx with higher electrical response upon NO. It is our hope that our theoretical assumption could be further studied and realized in the following experiential research, which would be meaningful to propose novel sensing candidate in the field of electrical engineering to guarantee the safe operation of the air insulation equipment.

Running-in performance of 7075 aluminum alloy strengthened by burnishing technology

Cong Ding,Shiqing Feng,Zhizhao Qiao,Zhenyu Zhou,Zhongyu Piao 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.5

A 2D ultrasonic burnishing technology was employed to strengthen 7075 aluminum alloy. The running-in experiments for original and burnished samples were implemented, and the running-in performance was explored qualitatively and quantitatively. The results show that the worn surface of an original sample exhibited the peelings, scratches, and abrasive particles, yet the wear form of a burnished sample was relatively single, mainly with scratches. The quantitative parameter “maximum distance between phase points d max ” was calculated. During the friction and wear process, the d max of friction coefficient signal displayed the variation of first decreasing and then stabilizing, which was consistent with the running-in and steadystate stages of the friction system. Compared with the original sample, the burnished sample had a less d max , which indicated that the phase trajectory had a more convergence, and the friction system had a better stability. This study can guide surface strengthening and running-in performance analysis.

Fascia Suture Technique Is a Simple Approach to Reduce Postmastectomy Seroma Formation

Yizi Cong,Jianqiao Cao,Guangdong Qiao,Song Zhang,Xinjie Liu,Xiaoming Fang,Haidong Zou,Shiguang Zhu 한국유방암학회 2020 Journal of breast cancer Vol.23 No.5

Purpose: Seroma formation is a common complication in breast cancer patients undergoing mastectomy, and it negatively affects patient recovery after surgery. The present study aimed to evaluate a simple method using fascia suture technique to fix the flap and reduce the incidence of seroma. Methods: A single-center, prospective, randomized controlled trial was carried out among 160 patients who had undergone mastectomy from May 2018 to September 2019. All patients were randomly divided into the fascia suture group (n = 80) or control group (n = 80) and were followed up for at least 3 months for the assessment of immediate and late complications after surgery. Results: No significant differences were observed between the 2 groups with regard to the basic characteristics. Duration of surgery in the fascia suture group was longer by about 6 minutes compared with that in the control group (114.93 ± 13.67 minutes vs. 108.81 ± 15.20 minutes, p = 0.008). The fascia suture group had a shorter duration of drain placement (10.99 ± 3.26 days vs. 13.85 ± 5.37 days, p < 0.001), a smaller volume of the total drainage (460.95 ± 242.92 mL vs. 574.83 ± 285.23 mL, p = 0.007), and the first 3-day drainage (224.96 ± 101.01 mL vs. 272.3 ± 115.47 mL, p = 0.006), compared with the control group. The incidence of seroma formation (G2 or G3) was significantly lower in the fascia suture group compared with the control group (28.8% vs. 12.5%, p = 0.033). Besides, there was no statistical difference between the 2 groups in the assessment of other complications, including postoperative pain, hematoma, surgical site infections, flap necrosis, and skin dimpling (all p > 0.050). Conclusion: The fascia suture technique is a simple and effective method for reducing seroma formation and should be used to prevent seroma formation after mastectomy.

Transcriptomic and proteomic profiling revealed global changes in Streptococcus thermophilus during pH-controlled batch fermentations

Yali Qiao,Cong Leng,Gefei Liu,Yanjiao Zhang,Xuepeng Lv,Hongyu Chen,Jiahui Sun,Zhen Feng 한국미생물학회 2019 The journal of microbiology Vol.57 No.9

Understanding global changes of physiological processes at the molecular level during the growth of Streptococcus thermophilus is essential for the rational design of cultivation media and the optimization of bioprocesses. Transcriptomics and proteomics were combined to investigate the global changes at the transcript and protein level during the growth of S. thermophilus. The expression of 1396 genes (FDR ≤ 0.001) and 876 proteins (P < 0.05) changed significantly over time. The most remarkable growth phase dependent changes occurred in the late-lag phase and were related to heterofermentation, glycolysis, peptidoglycan biosynthesis, conversion between amino acids and stress response. The present results could provide theoretical guidance for high-cell-density culture, help design cultivation media, and help attain a high biomass of S. thermophilus.

Prognostic Role of Hypoxic Inducible Factor Expression in Non-small Cell Lung Cancer: A Meta-analysis

Li, Cong,Lu, Hua-Jun,Na, Fei-Fei,Deng, Lei,Xue, Jian-Xin,Wang, Jing-Wen,Wang, Yu-Qing,Li, Qiao-Ling,Lu, You Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.6

Introduction: Reported prognostic roles of hypoxic inducible factor (HIF) expression in non-small cell lung cancer (NSCLC) have varied. This meta-analysis aimed to examine the relationship between HIF expression and clinical outcome in NSCLC patients. Methods: PubMed were used to identify relevant literature with the last report up to December $20^{th}$, 2012. After careful review, survival data were collected from eligible studies. We completed the meta-analysis using Stata statistical software (Version 11) and combined hazard ratio (HR) for overall survival (OS). Subgroup specificity, heterogeneity and publication bias were also assessed. All of the results were verified by two persons to ensure accuracy. Results: Eight studies were finally stepped into this meta-analysis in which seven had available data for HIF-$1{\alpha}$ and three for HIF-$2{\alpha}$. Combined HRs suggested that higher expression of $HIF1{\alpha}$ had a negative impact on NSCLC patient survival (HR=1.50; 95%CI=1.07-2.10; p=0.019). The expression of HIF-$2{\alpha}$ was also relative to a poorer survival (HR=2.02; 95%CI=1.47-2.77; p=0.000). No bias existed in either of the two groups. Conclusion: This study suggests that elevations of HIF-$1{\alpha}$ and HIF-$2{\alpha}$ expression are both associated with poor outcome for patients with NSCLC. The data support further and high quality investigation of HIF expression for predicting poor outcome in patients with NSCLC.

miR-124 Inhibits Growth and Invasion of Gastric Cancer by Targeting ROCK1

Hu, Cong-Bing,Li, Qiao-Lin,Hu, Jian-Fei,Zhang, Qiang,Xie, Jian-Ping,Deng, Li Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.16

MicroRNAs (miRNAs) act as critical regulators of genes involved in many biological processes. Aberrant alteration of miRNAs have been found in many cancers, including gastric cancer (GC), but the molecular mechanisms are not well understood. Herein, we investigated the role of miR-124 in GC. We found that its expression was significantly reduced in both GC tissue samples and cell lines. Forced expression of miR-124 suppressed GC cell proliferation, migration, and invasion. Furthermore, the Rho-associated protein kinase (ROCK1) was identified as a direct target of miR-124 in GC cells. Finally, silencing of ROCK1 showed similar effects as miR-124 overexpression, while supplementation of ROCK1 remarkably restored the cell growth and invasion inhibited by miR-124. Together, our data demonstrate that miR-124 acts as a tumor suppressor by targeting ROCK1, and posit miR-124 as a novel strategy for GC treatment.

환원된 산화그래픽/젤라틴 복합필름의 합성과 분석

Guangxin Chen,Cong De Qiao,Jing Xu,Jin Shui Yao 한국고분자학회 2014 폴리머 Vol.38 No.4

Reduced graphene oxide(RGO) was fabricated using gelatin as a reductant, and it could be stably dispersed in gelatin solution without aggregation. A series of RGO/gelatin composite films with various RGO contents were pre-pared by a solution-casting method. The structure and thermal properties of the RGO/gelatin composite films were char-acterized by UV-vis spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM),differential scanning calorimeter (DSC) and thermal gravi-metric analysis(TGA). scanning electron microscopy(SEM), differential scanning calorimeter(DSC) and thermal gravi-meteic analysis(TGA). The addition of RGD enhances the degree of crosslinking of gelatin films and decreases the swell-ing ability of the gelatin films in water, indicating that RGD/gelatin composite films have a better wet stability than gelatin films, The glass transition temperature(Tg)of gelatin films is also increased with the incorporation of RGO. The presence of RGO silms. Since gelatin is a natural and nontoxic biomacromolecule, the RGD/ gelatin composite films are expected to have potential applications in the biomedical field.

Analysis of Genetic Diversity of Japanese Plum Cultivars Based on RAPD, ISSR, and SSR Markers

Yu Shan Qiao,Jing Gui Fang,Yu Cong,Zhen Zhang 한국원예학회 2006 한국원예학회 기타간행물 Vol.- No.-

A Wide-range Tunable Wavelength-stabilization Technique for Semiconductor Lasers

Han Chen,Qinliang Qiao,Jing Min,Cong He,Yuanyuan Zhang 한국광학회 2021 Current Optics and Photonics Vol.5 No.4

This paper presents a wide-range tunable wavelength-locking technology based on optoelectronic oscillation (OEO) loops for optical fiber sensors and microwave photonics applications, explains the theoretical fundamentals of the design, and demonstrates a method for locking the relative wavelength differences between a leader semiconductor laser and its follower lasers. The input of the OEO loop in the proposed scheme (the relative wavelength difference) determines the radio-frequency (RF) signal frequency of the oscillation output, which is quantized into an injection current signal for feedback to control the wavelength drift of follower lasers so that they follow the wavelength change of the leader laser. The results from a 10-hour continuous experiment in a field environment show that the wavelength-locking accuracy reached ±0.38 GHz with an Allan deviation of 6.1 pm over 2 hours, and the wavelength jitter between the leader and follower lasers was suppressed within 0.01 nm, even though the test equipment was not isolated from vibrations and the temperature was not controlled. Moreover, the tunable range of wavelength locking was maintained from 10 to 17 nm for nonideal electrical devices with limited bandwidth.