Multi-objective Optimization of a Hydrogen-Battery Hybrid Storage System for Offshore Wind Farm Using MOPSO

Tian Tian,Ma Zetao,Cui Qiong,Shu Jie,Tan Lei,Wang Hao 대한전기학회 2023 Journal of Electrical Engineering & Technology Vol.18 No.6

Recently, offshore wind farms (OWFs) are gaining more and more attention for its high efficiency and yearly energy production capacity. However, the power generated by OWFs has the drawbacks of intermittence and fluctuation, leading to the deterioration of electricity grid stability and wind curtailment. Energy storage is one of the most important solutions to smooth the wind power and capture its surplus. In this paper, we provide a multi-objective optimization approach that combines multi-objective particle swarm optimization and rule-based energy management strategy for an on-gird offshore wind-hydrogen-battery system to simultaneously address the economic (Eco), the qualified rate of smoothing offshore wind power fluctuations (QRS), and the rate of offshore wind power curtailment (ROC). Results revealed that ROC and Eco, QRS and Eco are negatively correlated, but ROC and QRS are positively correlated. The hybrid storage system is more conducive to improve QRS and reduce ROC. Comparing with other three systems, the improvement range for ROC is between 13.6 and 46% when QRS is 100%. In addition, battery storage improves QRS by 2.6%, hydrogen storage deteriorates Eco by 86.8% and improve ROC by 38.5%, the change of ROC and QRS brings by transmission project are close to 100% and 4.4%.

사용자 사용성 향상을 위한 PC 게임 UI 디자인 연구 -오픈 월드(Open World Game) 게임을 중심으로-

최티에쥐 ( Cui Tian-ju ),이창욱 ( Lee Chang-wook ) 커뮤니케이션디자인학회 2023 커뮤니케이션 디자인학연구 Vol.84 No.-

본 연구는 컴퓨터 보급률 향상과 게임 시장의 산업화에 따라 최근 컴퓨터 게임 인터페이스 디자인의 중요성을 제시하고 오픈월드 게임의 사용성(usability) 평가에 따라 사용자와 만족도 간의 관계를 연구하고자 한다. 또한, 오픈월드 게임 사용자를 대상으로 사용자의 인터페이스 디자인이 게임에 끼치는 영향력을 이해하고, 오픈월드 게임 인터페이스 디자인 개선 방향에 대한 제시를 본 연구의 목적으로 한다. 이를 위해 먼저 선행연구를 통해 사용성 평가방법을 정리하고 스팀 매출 순위를 파악해 상위 3개 오픈월드 게임의 사용성을 평가하였다. 다음으로 게임의 주요 사용자인 20대를 대상으로 설문조사를 진행하여 오픈 월드 게임의 사용자 인터페이스 디자인의 문제점을 분명하게 밝히고, 각 게임마다 개선의 제안을 제시하였다. 마지막으로 본 연구를 통해 제시된 오픈월드 게임 사용 편의성 평가의 휴리스틱과 사용자 만족도는 효율성과 사용 편의성을 나타낸다. 따라서 이러한 평가방법은 향후 다른 장르의 PC게임에서 활용될 것으로 기대하는 바이다. This study presents the importance of computer game interface design in accordance with the increase in computer penetration rate and industrialization of the game market. This study aims to study the relationship between users and satisfaction according to the usability evaluation of open world games. Targeting open world game users, we tried to understand the influence of user interface design on the game. The purpose is to suggest a direction for improving the open world game interface design. First, the usability evaluation method was organized through preceding research, and the usability of the top three open world games was evaluated by identifying the steam sales ranking. In addition, the game's main users A survey was conducted on people in their twenties, and according to the survey, problems in the user interface design of open world games are clearly revealed, and suggestions for improvement are presented for each game. However, the open world games presented through this study The heuristic and user satisfaction of the usability evaluation can indicate efficiency and usability, and it is expected that this usability evaluation method will be used in other genres of PC games in the future.

Improvement of LPC-10 Vocoder

Hujiuan Cui Tian,Wang Chongxi Feng 한국통신학회 1993 Asia-Pacific Conference on Communications Vol.2 No.2

Centriolin, a Centriole-Appendage Protein, Regulates Peripheral Spindle Migration and Asymmetric Division in Meiotic Oocytes

Tian-Yi Sun,Hai-Yang Wang,JeongWoo Kwon,Bao Yuan,In-Won Lee,Xiang-Shun Cui,Nam-Hyung Kim 한국동물생명공학회(구 한국동물번식학회) 2016 발생공학 국제심포지엄 및 학술대회 Vol.2016 No.10

Use of Clozapine for the Treatment of Schizophrenia: Findings of the 2006 Research on the China Psychotropic Prescription Studies

Tian-Mei Si,Yun-shu Zhang,Liang Shu,Ke-Qing Li,Xie-He Liu,Qi-Yi Mei,Gao-Hua Wang,Pei-Shen Bai,Li-Ping Ji,Xian-Sheng Cheng,Cui Ma,Jian-Guo Shi,Hong-Yan Zhang,Hong Ma,Xin Yu 대한정신약물학회 2012 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.10 No.2

Objective: Clozapine is one of the most commonly used antipsychotic drugs in China. To date, few studies have investigated the patterns the prescription of clozapine nationwide. The present study examined these patterns in China in 2006 and identified the demographic and clinical characteristics associated with the use of clozapine. Methods: Using a standardized protocol and data collection procedure, we surveyed 5,898 patients with schizophrenia in 10provinces with differing levels of economic development. Results: Overall, clozapine had been prescribed for 31.9% (n=1,883) of the patients; however we found considerable variation among the 10 provinces. The frequency of clozapine use was highest in Sichuan (39.3%) and lowest in Beijing (17.3%). The mean daily dose of clozapine was 210.36±128.72 mg/day, and 25.1% of the patients were treated with clozapine in combination with other antipsychotics. Compared with the group not receiving clozapine, clozapine-user had been treated for longer durations and had experienced a greater number of relapses and hospitalizations. Furthermore, those in the clozapine-user had lower family incomes, were less able to seek psychiatric services, and more likely to be male and have a positive family history of schizophrenia. A multiple logistic regression analysis revealed that age, sex, professional help-seeking behaviors, duration of illness, economic status, educational level, and clinical manifestations were associated with the use of clozapine. Conclusion: Clozapine use is common in China. However, use of the antipsychotic varies among provinces, and demographic and clinical factors play important roles in the prescription of clozapine.

Study on Supervision System of Chinese Specialized Farmers Cooperatives: Experience of the Korean NongHyup

Cui Guilian,Tian Yang 한국유통과학회 2015 유통과학연구 Vol.13 No.4

Purpose - The Chinese government's policies and funds enable specialized farmers cooperatives to develop vigorously. However, the non-systematic supervision system affects the interests of farmer-members of these cooperatives, which are similar to the Korean NongHyup in many aspects but differ in their supervision systems such as distribution. Therefore, this paper aims to identify the problems of specialized farmers cooperatives, and obtain some insights from NongHyup. Research design, data, and methodology - Data were collected from farmers, the government, and cooperatives in northern China's Shandong Province (the cities of Jinan, Qingdao, Weifang, Linyi, and Heze) through a literature survey, case analysis, and comparative analysis in each city. Results - 1) Specialized farmers cooperatives should establish a transparent regulatory mechanism and be subject to dual supervision from both the Chinese government and farmers. 2) The Chinese government and civil society should offer more support to the cooperatives, and strive to change farmers' backward attitude through education and training. Conclusions - Small cooperatives could merge into large ones and undertake social responsibility through the establishment of labor unions.

Hepatoprotective Constituents of Cudrania tricuspidata

Tian Yu-Hua,Kim Hyun-Chul,Cui Jiong-Mo,Kim Youn-Chul The Pharmaceutical Society of Korea 2005 Archives of Pharmacal Research Vol.28 No.1

Phytochemical investigation of the MeOH extract of the root barks of Cudrania tricuspidata Bureau (Moraceae), as guided by hepatoprotective activity in vitro, furnished four isoprenylated xanthones, cudratricusxanthone A (1), cudraxanthone L (2), cudratricusxanthone E (3), and macluraxanthone B (4). All of these compounds showed the significant hepatoprotective effect on tacrine-induced cytotoxicity in human liver-derived Hep G2 cells. Compounds 1, 2, and 4 also exhibited the significant hepatoprotective effect on nitrofurantoin-induced cytotoxicity in human liver-derived Hep G2 cells.

Factors that Influence the Presciption of Antipsychotics for Patients with Schizophrenia in China

Tian-Mei Si,Liang Shu,Ke-Qing Li,Xie-He Liu,Qi-Yi Mei,Gao-Hua Wang,Pei-Shen Bai,Li-Ping Ji,Xian-Sheng Chen,Cui Ma,Jian-Guo Shi,Hong-Yan Zhang,Hong Ma,Xin Yu 대한정신약물학회 2011 CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE Vol.9 No.3

Objective: To investigate the patterns of antipsychotic use in China and to analyze the factors that influence antipsychotic prescriptions. Methods: A standardized survey was conducted from May 20 to 24 2002 in five different regions of China with varying economic levels. The patterns of antipsychotic medication use were analyzed in a sample of 4,779 patients with schizophrenia. The survey gathered information on demographic characteristics, clinical profiles, and antipsychotic medications prescribed. Multiple logistic regression was used to analyze factors related to patterns of antipsychotic medication use. Results: A plurality of patients with schizophrenia was treated with clozapine (39%); this was followed by risperidone, sulpride,chlorpromazine, perphenazine, and haloperidol. More than 56.3% of patients were treated with only one atypical antipsychotic. The mean daily dose of chlorpromazine was 365±253 mg (mean±standard deviation), and 6.5% of patients were treated with depot injections of typical antipsychotic medications. A total of 73.7% (n=3,523) of patients with schizophrenia received monotherapy,24.8% (n=1,183) received two antipsychotics, 1.1% (n=52) received three antipsychotics, and one received four different antipsychotics. Patients often simultaneously received other classes of medications including anticholinergic agents, benzodiazepines,β-blockers, antidepressants, and mood stabilizers. Economic status and clinical symptoms were the main factors that contributed to the patterns of antipsychotic prescription. Conclusion: The present study suggests that atypical antipsychotic medications, especially clozapine, are the primary psychiatric treatments of choice in the management of schizophrenia in China. Moreover, the economic status and clinical profile of the patient are the major factors affecting the prescription of antipsychotic medication.

Centriolin, a Centriole-Appendage Protein, Regulates Peripheral Spindle Migration and Asymmetric Division in Meiotic Oocytes

Tian-Yi Sun,Hai-Yang Wang,JeongWoo Kwon,Bao Yuan,In-Won Lee,Xiang-Shun Cui,Nam-Hyung Kim 한국수정란이식학회 2016 한국수정란이식학회 학술대회 Vol.2016 No.10

Unlike somatic cells mitosis, germ cell meiosis consists of two consecutive rounds of divisions that segregate homologous chromosomes and sister chromatids, respectively. The meiotic oocyte is characterized by an absence of centrioles and asymmetric divisions. Centriolin is a relatively novel centriolar protein that functions in mitotic cell cycle progression and cytokinesis. Here, we explored the function of centriolin in meiosis and showed that it was localized to meiotic spindles, and concentrated at the spindle poles and midbody during oocyte meiotic maturation. Unexpectedly, knockdown of centriolin in oocytes with either siRNA or Morpholino micro-injection, did not affect meiotic spindle organization, cell cycle progression, or cytokinesis (as indicated by polar body emission), but led to a failure of peripheral meiotic spindle migration; and symmetric division or large polar body emission. These data suggest that, unlike in mitotic cells, the centriolar protein centriolin does not regulate cytokinesis, but plays an important role in regulating asymmetric division of meiotic oocytes.

Prognostic Value of C-Reactive Protein in Esophageal Cancer: a Meta-analysis

Zheng, Tian-Liang,Cao, Ke,Liang, Cui,Zhang, Kai,Guo, Hai-Zhou,Li, De-Ping,Zhao, Song Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.19

Background: The classical inflammatory biomarker, C-reactive protein (CRP), has been identified to be related to progression of esophageal cancer. Some research showed that elevated pretreatment serum CRP indicated a poor prognosis, but results have been inconsistent. Materials and Methods: We searched the Medline, Embase and the Cochrane Central Search Library for suitable studies and a meta-analysis of eleven (1,886 patients) was conducted to examine the relationship between elevated serum CRP level and overall survival (OS) in esophageal cancer cases. Moreover, correlation analyses were conducted to assess links between pretreatment serum CRP level and tumor node metastasis (TNM) stage as well as T, N, M grade, respectively. Results: The pooled analysis showed that elevated pretreatment serum CRP level was significantly associated with poorer overall survival (HR 2.09, 95%CI 1.52-2.87, p<0.01). Subgroup analyses were conducted by "country", "cut-off value", "treatment" and "number of patients", and no single factor could alter the result. Elevated pretreatment serum CRP was significantly correlated with more advanced TNM stage and T, N, M grade respectively. Conclusions: Elevated pretreatment serum CRP levels are associated with poorer prognosis in esophageal cancer patients, and could serve as a useful biomarker for outcome prediction.