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Health-related Quality of Life After Treatment for Malignant Bone Tumors: A Follow-up Study in China
Sun, Yong-Jian,Hu, Yan-Jun,Jin, Dan,Li, Jian-Wei,Yu, Bin Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.7
Aim: We conducted the present study to assess health-related quality of life (HRQoL) among bone cancer patients after surgical treatment in one large teaching hospitals in China, and assess the risk factors for improving the physical or mental HRQoL. Methods: 344 eligible adult patients who were admitted to the hospital with malignant bone tumors during the period of Jun. 2008 to Dec. 2011, and a reference group with 361 health cases was recruited in the same hospital during the same period. All 344 patients were followed up for one year. The HRQoL before treatment and after one year was evaluated with the Medical Outcome Short Form 36 (SF-36). Results: All 8 domains of HRQoL had the lowest scores greatly improved over the first year after discharge. However, the patients still had significantly lower scores in every domain than the reference group one year after discharge. Age and type of surgery were associated with HRQoL in the mental domain. Conclusion: The HRQoL of patients with malignant bone tumors greatly improved one year after the treatment. This study also highlighted the utility of HRQoL assessment for prognostic evaluation of patients after surgical treatment for bone cancer.
750kW급 풍력발전기의 부하 모니터링 시스템에 관한 연구
남윤수,장후영,윤태준 江原大學校 産業技術硏究所 2008 産業技術硏究 Vol.28 No.A
The exact load measurements for the mechanical parts of wind turbine are important step both for evaluation of specific wind turbine design and for a certification process. A wind turbine monitoring system is essential equipment for mechanical load analysis of a wind turbine. This monitoring system is based on IEC 61400-13 and strain gage are used to measure a mechanical load of wind turbine. Also this system monitors signals from a meteorological mast. The measured signals which are sampled at 200 Hz are automatically saved on a data file in the unit of ten minutes. A detail explanation for the developed wind turbine monitoring system is presented in this study.
Jun Young Kim(Jun Young Kim),Woo H. Kim(Woo H. Kim),Yeung Bae Jin(Yeung Bae Jin),Kwang Il Park(Kwang Il Park),Sung Joong Lee(Sung Joong Lee),Suk Kim(Suk Kim),Hu-Jang Lee(Hu-Jang Lee) 한국예방수의학회 2023 예방수의학회지 Vol.47 No.2
From 2020, Korean Animal and Plant Quarantine Agency has reset the withdrawal time (WT) for veterinary drugs typically used in livestock in preparation for the introduction of positive list system (PLS) program in 2024. This study was conducted to reset the MRL for amprolium (APL) in broiler chickens as a part of PLS program introduction. Forty-eight healthy Ross broiler chickens were orally administered with APL at the concentration of 60 mg/L (APL-1, n=24) for 14 days and 240 mg/L (APL-2, n=24) for 7 days through drinking water, respectively. After the drug treatment, tissue samples were collected from six broiler chickens at 0, 1, 3 and 5 days, respectively. Residual APL concentrations in poultry tissues were determined using LC-MS/MS. Correlation coefficient (0.99 >), the limits quantification (LOQ, 0.3~5.0 μg/kg), recoveries (81.5~112.4%), and coefficient of variations (<15.5%) were satisfied the validation criteria of Korean Ministry of Food and Drug Safety. In APL-1, APL in all tissues except for kidney was detected less than LOQ at 3 days after drug treatment. In APL-2, APL in liver and kidney was detected more than LOQ at 5 days after treatment. According to the European Medicines Agency’s guideline on determination of withdrawal periods, withdrawal periods of APL-1 and APL-2 in poultry tissues were established to 3 and 2 days, respectively. In conclusion, the developed analytical method is sensitive and reliable for detecting APL in poultry tissues. The estimated WT of APL in poultry tissues is longer than the current WT recommendation of 2 days for APL in broiler chickens.
Jun Yang,Wenpin Luo,Yong-Hu Wang,Jun Cheng 제어·로봇·시스템학회 2016 International Journal of Control, Automation, and Vol.14 No.2
This paper is concerned with improved stability criteria for uncertain T-S fuzzy systems with intervaltime-varying delay by means of a new (m;N)-delay-partitioning approach. Based on an appropriate augmented LKFestablished in the framework of state vector augmentation, some tighter bounding inequalities (Seuret-Wirtinger’sintegral inequality, Peng-Park’s integral inequality and the reciprocally convex approach) have been employed todeal with (time-varying) delay-dependent integral items of the derivative of LKF, therefore, less conservative delaydependentstability criteria can be obtained on account of none of any useful time-varying items are arbitrarilyignored. It’s worth mentioning that, when the delay-partitioning number m is fixed, less conservatism can beachieved by increase of another delay-partitioning number N, but without increasing any computing burden. Finally,one numerical example is provided to show that the proposed conditions are less conservative than existing ones.
Optimal Tracking Performance of NCSs with Time-delay and Encoding-decoding Constraints
Jun-Wei Hu,Xi-Sheng Zhan,Jie Wu,Huai-Cheng Yan 제어·로봇·시스템학회 2020 International Journal of Control, Automation, and Vol.18 No.4
In this paper, the tracking performance of networked control systems (NCSs) under energy constraints with time-delay and encoding-decoding is studied. Through spectral factorization and partial decomposition techniques, we can obtain the explicit representation of the optimal performance. It is shown that the optimal performance is affected by non minimum phase (NMP) zeros, unstable poles and other multiple communication constraints such as time-delay, encoding-decoding and additive white Gaussian noise (AWGN). At the same time, the obtained result shows that a two-parameter compensator is superior to a one-parameter compensator. In addition, it is found that time-delay, encoding-decoding and AWGN affected the tracking capability of NCSs. Finally, an example is given for verifying the correctness of the conclusions.
Jun Hu,Can Tao,Aining Yuan,Junjie Bao,Qin Cheng,Gewen Xu,Yiping Huang 한국고분자학회 2019 폴리머 Vol.43 No.2
Series of waterborne polyurethanes (WPUs) containing poly(tetra methylene glycol) (PTMG), 4,4-dicyclohexylmethane diisocyanate (HMDI), 2,2-dimethylolpropionic acid (DMPA), 2,2,4-trimethyl-1,3-pentanediol (TMPD), isosorbide (ISO) and ethylenediamine (EDA) were synthesized. The effects of ISO on the structure and properties of WPUs were studied by gel permeation chromatography (GPC), Fourier-transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), dynamic mechanical analyzer (DMTA), X-ray diffraction (XRD), thermogravimetry (TG), mechanical test, chemical resistance and hardness test. The deconvolution analysis of FTIR of WPUs revealed that the hydrogen bond interaction in the WPUs increased with the increase of ISO content. Furthermore, the degree of microphase separation was increased with the increase of hydrogen bond interaction, which was confirmed by DSC, XRD and DMTA test. The results demonstrated that the addition of ISO can increase the hydrogen bond interaction between the hard and hard segments in WPUs, which improved the mechanical properties of the WPU films. The highest tensile strength was obtained of 59.67 MPa when the content of isosorbide was 10.35 wt%. Moreover, the ISO was helpful to improve the chemical resistance and hardness of the coatings by the comprehensive performance analysis.