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Risk Factors for Anxiety in Major Depressive Disorder Patients
Li-Min Xin,Lin Chen,Zhen-Peng Ji,Suo-Yuan Zhang,Jun Wang,Yan-Hong Liu,Da-Fang Chen,Fu-De Yang,Gang Wang,Yi-Ru Fang,Zheng Lu,Hai-Chen Yang,Jian Hu,Zhi-Yu Chen,Yi Huang,Jing Sun,Xiao-Ping Wang,Hui-Chun 대한정신약물학회 2015 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.13 No.3
Objective: To analyze the sociodemographic and clinical factors related to anxiety in patients with major depressive disorder (MDD). Methods: This study involved a secondary analysis of data obtained from the Diagnostic Assessment Service for People with Bipolar Disorders in China (DASP), which was initiated by the Chinese Society of Psychiatry (CSP) and conducted from September 1, 2010 to February 28, 2011. Based on the presence or absence of anxiety-related characteristics, 1,178 MDD patients were classified as suffering from anxious depression (n=915) or non-anxious depression (n=263), respectively. Results: Compared with the non-anxious group, the anxious-depression group had an older age at onset (t=−4.39, p<0.001), were older (t=−4.69, p<0.001), reported more lifetime depressive episodes (z=−3.24, p=0.001), were more likely to experience seasonal depressive episodes (χ2=6.896, p=0.009) and depressive episodes following stressful life events (χ2=59.350, p <0.001), and were more likely to have a family history of psychiatric disorders (χ2=6.091, p=0.014). Their positive and total scores on the Mood Disorder Questionnaire (MDQ) and the 32-item Hypomania Checklist (HCL-32) (p<0.05) were also lower. The logistic regression analysis indicated that age (odds ratio [OR]=1.03, p<0.001), a lower total MDQ score (OR=0.94, p=0.011), depressive episodes following stressful life events (OR=3.04, p<0.001), and seasonal depressive episodes (OR=1.75, p=0.039) were significantly associated with anxious depression. Conclusion: These findings indicate that older age, fewer subclinical bipolar features, an increased number of depressive episodes following stressful life events, and seasonal depressive episodes may be risk factors for anxiety-related characteristics in patients with MDD.
Chen Ou,Jun Liu,Lei Sun,Zhi-min Xiao,Yi Cheng,Ming-qing Liu,Fu-tian Zhao,Meng-yang Zhen,Yue Wang 대한토목학회 2021 KSCE JOURNAL OF CIVIL ENGINEERING Vol.25 No.6
The dynamic response and stability of building structures under accidental loads such as earthquake, explosion, and impact have been focused by experts. The significant influence will be induced once the damaged structure begins to collapse. In this study, a reinforced concrete frame structure model was designed and tested to study the dynamic response law of the structure under the condition of the failure of the middle column of the model structure, the remaining structure successively failed the load-bearing column and continued to be subjected to impact load and uniform load. The analytical method was used to calculate the ultimate uniform load subjecting to the structure under the failure of four load-bearing columns, because its value was less than the load in this test, the structure collapsed. The finite element calculation model was established, and compared the simulation results to the test results to verify its rationality. Then, the influence of the impact energy and the structural stores on the dynamic response of the structure were analyzed. The results showed that the peak value of the dynamic response of the damaged structure did not increase strictly with the increase of the number of failure columns, which may be related to the sequence of failure columns.
A Self-Powered RFID Sensor Tag for Long-Term Temperature Monitoring in Substation
Chen, Zhongbin,Deng, Fangming,He, Yigang,Liang, Zhen,Fu, Zhihui,Zhang, Chaolong The Korean Institute of Electrical Engineers 2018 Journal of Electrical Engineering & Technology Vol.13 No.1
Radio frequency identification (RFID) sensor tag provides several advantages including battery-less operation and low cost, which are suitable for long-term monitoring. This paper presents a self-powered RFID temperature sensor tag for online temperature monitoring in substation. The proposed sensor tag is used to measure and process the temperature of high voltage equipments in substation, and then wireless deliver the data. The proposed temperature sensor employs a novel phased-locked loop (PLL)-based architecture and can convert the temperature sensor in frequency domain without a reference clock, which can significantly improve the temperature accuracy. A two-stage rectifier adopts a series of auxiliary floating rectifier to boost its gate voltage for higher power conversion efficiency. The sensor tag chip was fabricated in TSMC $0.18{\mu}m$ 1P6M CMOS process. The measurement results show that the proposed temperature sensor tag achieve a resolution of $0.15^{\circ}C$/LSB and a temperature error of $-0.6/0.7^{\circ}C$ within the range from $-30^{\circ}C$ to $70^{\circ}C$. The proposed sensor tag achieves maximum communication distance of 11.8 m.
Port-Site Metastasis of Uterine Carcinosarcoma after Laparoscopy
Zhen Tan,Ang Li,Long Chen,XiaoWen Xu,ChuanGang Fu 대한의학회 2017 Journal of Korean medical science Vol.32 No.11
We report a case of port-site metastasis after laparoscopic surgery for early stage uterine carcinosarcoma (UCS) and review the related literature. A 53-year-old woman with suspected uterine malignance underwent a total laparoscopic hysterectomy with bilateral salpingo-oophorectomy, infra-colic omentectomy, and pelvic lymphadenectomy resulting pathologically in a stage IA UCS. Twelve months later she developed a palpable abdominal-wall mass at the trocar site without other synchronous metastases. A mass resection was performed and it was pathologically diagnosed with port-site metastasis of UCS. When performing surgery for UCS, specimens should be carefully removed in case small pieces of the occult disseminated metastatic tissues are trapped between the outer surface of the trocar sleeve and the abdominal wall incisional canal. Despite the low incidence, a laparotomy might be considered rather than laparoscopy to prevent port-site metastasis and more gynecological oncology clinical practices might be relevant to the management of port-site metastasis.
Research on the Stackelberg Game Method of Building Micro-grid with Electric Vehicles
Fu Baochuan,Chen Mengkai,Fei Zhaoan,Wu Jianhan,Xu Xiaoshu,Gao Zhen,Wu Zhengtian,Yang Yalong 대한전기학회 2021 Journal of Electrical Engineering & Technology Vol.16 No.3
A “micro-grid to users” Stackelberg game method with electric vehicles (EVs) is constructed with the aim of addressing the problem of unstable generation of renewable energy. Micro-grids set charging electricity prices and EV discharging electricity prices based on the supply and demand of electrical energy to achieve maximum benefi ts. The user as a follower formulates the electricity consumption and discharge strategy according to the electricity price to achieve the highest electricity satisfaction and the lowest cost. This proves theoretically that only one Stackelberg equilibrium exists in this game. The feasibility of the method is verifi ed through numerical simulation and the advantages of the proposed method are analysed.
Molecular cloning of two novel stearoyl-acyl desaturase genes from winterness wheat
Zhi-Fu Guo,Feng-Zhen Li,Xiao-Gang Ma,Feng Lin,Hui Ma,Li-Jing Chen,Ming Zhong,Li-Ping Bai,Ying Yi 한국유전학회 2011 Genes & Genomics Vol.33 No.5
Using RT-PCR and rapid amplification of cDNA ends, two new full-length cDNAs of SAD (TaSAD1 and TaSAD2) were obtained from a hardiest winter wheat cultivar (Mironovskaya808). Sequence comparison analysis showed that the deduced amino acid sequences of TaSAD1 and TaSAD2 had high similarity to those of other reported SAD proteins. They were also different each other by some substitutions, insertions and/or deletions involving single amino acid residues or motifs. Based on evolution analysis, it was clear that all SAD genes from Poaceae were closer than those from other genus such as Arabidopsis,Glycine, Triadica, Brassica, Sesamum and Bassia. All SAD genes clustered into two major groups in Poaceae. Meanwhile,TaSAD1 and TaSAD2 were clustered into different groups. The tertiary structure prediction indicated that both TaSAD1 and TaSAD2 proteins were a compact globular protein and their model structures almost were the same.
A Self-Powered RFID Sensor Tag for Long-Term Temperature Monitoring in Substation
Zhongbin Chen,Fangming Deng,Yigang He,Zhen Liang,Zhihui Fu,Chaolong Zhang 대한전기학회 2018 Journal of Electrical Engineering & Technology Vol.13 No.1
Radio frequency identification (RFID) sensor tag provides several advantages including battery-less operation and low cost, which are suitable for long-term monitoring. This paper presents a self-powered RFID temperature sensor tag for online temperature monitoring in substation. The proposed sensor tag is used to measure and process the temperature of high voltage equipments in substation, and then wireless deliver the data. The proposed temperature sensor employs a novel phased-locked loop (PLL)-based architecture and can convert the temperature sensor in frequency domain without a reference clock, which can significantly improve the temperature accuracy. A twostage rectifier adopts a series of auxiliary floating rectifier to boost its gate voltage for higher power conversion efficiency. The sensor tag chip was fabricated in TSMC 0.18㎛ 1P6M CMOS process. The measurement results show that the proposed temperature sensor tag achieve a resolution of 0.15 ℃ /LSB and a temperature error of -0.6/0.7 ℃ within the range from -30 ℃ to 70 ℃. The proposed sensor tag achieves maximum communication distance of 11.8 m.
Jin Ding,Dian Chen Li,Ya Hui Huang,Zhen Shan Fu 한국고분자학회 2022 폴리머 Vol.46 No.4
This study investigated the damage mechanism of acrylonitrile-butadiene styrene (ABS)/poly(methyl methacrylate) (PMMA)/nano-SiO2 composites. The distortion and fracture behavior of ABS/PMMA/nano-SiO2 compositeswere predicted by developing the homogenization theory and the surface-based cohesive method. This model simulatedthe elementary action of elastoplastic damage in the matrix, the fracture for the nano-SiO2 reinforcement, and traction separation for interfaces. The experiment and morphology of the fracture section were validated by the modeling results. Thedamage mechanisms of ABS/PMMA/nano-SiO2 composites were researched with the numerical results, and the roles ofnano-SiO2 strength in the mechanical properties of ABS/PMMA blends were discussed in detail
Development of Integrated Electro-Hydraulic Braking System and Its ABS Application
Zhi-Hui Tan,Zhen-Fu Chen,Xiao-Fei Pei,Xue-Xun Guo,Shuang-Hong Pei 한국정밀공학회 2016 International Journal of Precision Engineering and Vol.17 No.3
This paper presented a new type of integrated EHB system. The EHB consisted of a compact three-chamber structure of master cylinder and mode switching valves. This allowed for the easy implementation of three different modes: normal mode, failsafe mode and ABS mode. In normal mode, a PWM control method was proposed for pressure regulation that took into account overshoot and hysteresis. To provide a favorable pedal feeling, a pedal stroke simulator was designed and integrated with the master cylinder. The failsafe and ABS modes were verified and the performance of the EHB in the three modes was evaluated using co-simulation and a bench test.