The Preparation and the Effects of K/Na Ratio on the Electrical Properties of 0.95(Na0.96−xKxLi0.04)(Nb0.89Sb0.07Ta0.04)O3-0.05KNbO3 Lead-free Ceramics

Jian Ma,Dingquan Xiao,Bo Wu,Jia-gang Wu,Jian-guo Zhu 한국물리학회 2014 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.65 No.2

0.95(Na0.96−xKxLi0.04)(Nb0.89Sb0.07Ta0.04)O3-0.05KNbO3 (abbreviated as KxNLNST-KN, x =0.32 − 0.52) lead-free piezoelectric ceramics were prepared by using the conventional solid-statesintering method, and the intentional addition of a pre-calcined KNbO3 powder was used as asintering aid that might inhibit and compensate for the volatilization of alkali metals during thesintering process. The preparation of the ceramics and the effects of K/Na ratio on the structureand the electrical properties of these ceramics were studied in detail. Compared with the relativelyhigher sintering temperature of Li-, Sb-, and Ta-modified KNN ceramics reported in the literature,the dense ceramic samples were obtained at a reduced temperature of 1060 C, and the ceramicswith x = 0.44 possessed optimal properties: d33 = 298 pC/N, kp = 48%, Pr = 21.9 μC/cm2, andEc = 11.5 kV/cm.

Research on the Inter-harmonics Equivalent Impedance of Series Hybrid Active Power Filter

Jian-gong, Zhang,Jian-ben, Liu,Shao-jun, Dai,Qiao-fu, Chen,Jun-jia, He The Korean Institute of Electrical Engineers 2015 Journal of Electrical Engineering & Technology Vol.10 No.5

In the series hybrid active power filter (SHAPF) with magnetic flux compensation (MFC), the system current oscillate in the experimental results when adding the same phase harmonic current command in current control block. This condition endangers the security of the SHAPF. Taking the digit period average arithmetic as example, this paper explains the inter-harmonics current oscillation in the experiment. The conclusion is that the SHAPF is unstable to the inter-harmonics current in theory. Limited by the capacity of the inverter, the system current and the inverter output current do not increase to infinite. At last, some methods are proposed to solve this problem. From the practical viewpoint, the voltage feed-forward control is easy to achieve. It can suppress the current oscillation problems, and also improve the filtering effect. The feasibility of the methods is validated by both the emulation and experiment results.

HunMinJungUm

가건 ( Jia Jian ) 한국기초조형학회 2019 한국기초조형학회 작품집 Vol.2019 No.2

淺朝鮮半島변文述略

담가건 ( Jia Jian Tan ) 한국중국산문학회 2015 중국산문연구집간 Vol.5 No.-

Korean Peninsula lies to the east of China. In its history, significant anthologies like Parallel Prose of Koreans(Dong Ren Zhi Wen Si Liu), Anthology of Korean Prose(Dong Wen Xuan) and so on to a large extent reflect the achievements of parallel prose. As early as 470s, a few of parallel prose written by Baekje civil officials were still in existence. Since then, eminent figures came forth with large numbers, and over a thousand year, parallel prose can be found in the collected works of literati in large quantities. The achievements of Ancient Korean parallel prose embody the affiliation shared by Chinese and Korean culture traditions. Furthermore, these works enjoy multiple document value out of their extensive concern for politics, diplomacy, learning and aesthetic.

어포던스 이론을 토대로 하는 한중 내비게이션앱의 UI 디자인 가이드라인

가건 ( Jia Jian ),이창욱 ( Lee Changwook ) 커뮤니케이션디자인학회(구 시각디자인학회) 2021 커뮤니케이션 디자인학연구 Vol.75 No.-

현 시대 마켓에서 메인스트림 스마트폰 앱은 다양한 UI 인터페이스 디자인스타일을 갖고 있을 뿐만 아니라 다양한 인터렉티브 모드까지 포괄하고 있다. 동시에 사용자가 이러한 스마트폰 앱을 사용할 때 UI 인터페이스의 사용성에 대한 문제점들이 계속 발생하고 있다. 어포던스 디자인과 사용자경험 디자인의 밀접한 관계는 사용자의 인터렉티브 행위의 본질에서 출발하여 사용자와 인터페이스가 인터렉티브 과정에서의 전위행동을 시스템적으로 배출할 수 있다. 인터페이스는 예쁘고 고상해야 하는 동시에 사용자가 쉽게 인지하고 조작할 수 있어야한다. 그러므로 본 연구는 선행문헌의 연구 성과를 의거하여 스마트폰 앱 UI 디자인의 시각적 요소를 고찰하는 동시에 본 연구에서의 UI 삼요소를 도출한다. 그 후 어포던스 차원에서 출발하여 본 연구에 가장 적합한 어포던스 타입 중 학자 Hason의 어포던스 디자인 4대 타입을 연구기준으로 하고, 본 연구에서 정리한 각 내비게이션앱의 UI 인터페이스 삼요소에 대하여 어포던스 이론을 토대로 설문조사를 제작하고 어포던스 디자인의 차원에서 한중 6개의 내비게이션앱의 UI 디자인에 대하여 지향성 있게 합리적인 보완방법 및 개선방침을 제기한다. 따라서 인터페이스를 디자인하는 동시에 레이아웃의 배열방식, 심플한 아이콘, 사용자의 조작상태 등은 모두 일정하고 명확한 피드백을 갖고 있다. 사용자가 인터페이스와 인터렉티브를 이루는 과정에서 아무런 보조가 없더라도 인터페이스의 기능을 이해하고 순조롭게 조작을 이루어 제품의 사용성을 향상할 수가 있다. 이를 통해 같은 영역 중 내비게이션앱 UI 디자인의 개선 활동에 참고적 가치가 되었으면 한다. Nowadays, the UI interface design in mobile phone applications has a variety of styles, including many interaction methods, and many design principles in related fields.There are many user experience problems in the design of mobile UI.The close connection between the usability design and the user experience design can be taken as the starting point of the user's interaction behavior, and the dislocation behavior of the system's expulsion interaction process.It is also necessary to make the user understand and operate smoothly.Therefore, the visual elements of UI design were studied and the three main elements were sifted.Based on HASON's four main categories of usability design, the data are collected through the network questionnaire, and the cognitive availability, physical availability, perception and skills of the UI design of the six major navigation app in Korea and China are improved. Therefore, while carrying out the interface design, there certainly is clear feedback on the layout arrangement, the simplicity of the graphic logo, the user’s operating states, etc. In the process of interacting with the interface, users can understand the interface function and complete the operation successfully without any assistance, which improves the usability of the product. Using this as a reference, UI design in navigation applications in the same field plays an important role.

Evaluation of Computer-Assisted Quantitative Volumetric Analysis for Pre-Operative Resectability Assessment of Huge Hepatocellular Carcinoma

Tang, Jian-Hua,Yan, Fu-Hua,Zhou, Mei-Ling,Xu, Peng-Ju,Zhou, Jian,Fan, Jia Asian Pacific Journal of Cancer Prevention 2013 Asian Pacific journal of cancer prevention Vol.14 No.5

Purpose: Hepatic resection is arguably the preferred treatment for huge hepatocellular carcinoma (H-HCC). Estimating the remnant liver volume is therefore essential. This study aimed to evaluate the feasibility of using computer-assisted volumetric analysis for this purpose. Methods: The study involved 40 patients with H-HCC. Laboratory examinations were conducted, and a contrast CT-scan revealed that 30 cases out of the participating 40 had single-lesion tumors. The remaining 10 had less than three satellite tumors. With the consensus of the team, two physicians conducted computer-assisted 3D segmentation of the liver, tumor, and vessels in each case. Volume was automatically computed from each segmented/labeled anatomical field. To estimate the resection volume, virtual lobectomy was applied to the main tumor. A margin greater than 1 cm was applied to the satellite tumors. Resectability was predicted by computing a ratio of functional liver resection (R) as (Vresected-Vtumor)/(Vtotal-Vtumor) x 100%, applying a threshold of 50% and 60% for cirrhotic and non-cirrhotic cases, respectively. This estimation was then compared with surgical findings. Results: Out of the 22 patients who had undergone hepatectomies, only one had an R that exceeded the threshold. Among the remaining 18 patients with non-resectable H-HCC, 12 had Rs that exceeded the specified ratio and the remaining 6 had Rs that were < 50%. Four of the patients who had Rs less than 50% underwent incomplete surgery due to operative findings of more extensive satellite tumors, vascular invasion, or metastasis. The other two cases did not undergo surgery because of the high risk involved in removing the tumor. Overall, the ratio of functional liver resection for estimating resectability correlated well with the other surgical findings. Conclusion: Efficient pre-operative resectability assessment of H-HCC using computer-assisted volumetric analysis is feasible.

Research on the Inter-harmonics Equivalent Impedance of Series Hybrid Active Power Filter

Zhang Jian-gong,Liu Jian-ben,Dai Shao-jun,Chen Qiao-fu,He Jun-jia 대한전기학회 2015 Journal of Electrical Engineering & Technology Vol.10 No.5

In the series hybrid active power filter (SHAPF) with magnetic flux compensation (MFC), the system current oscillate in the experimental results when adding the same phase harmonic current command in current control block. This condition endangers the security of the SHAPF. Taking the digit period average arithmetic as example, this paper explains the inter-harmonics current oscillation in the experiment. The conclusion is that the SHAPF is unstable to the inter-harmonics current in theory. Limited by the capacity of the inverter, the system current and the inverter output current do not increase to infinite. At last, some methods are proposed to solve this problem. From the practical viewpoint, the voltage feed-forward control is easy to achieve. It can suppress the current oscillation problems, and also improve the filtering effect. The feasibility of the methods is validated by both the emulation and experiment results.

Low Counts of γδ T Cells in Peritumoral Liver Tissue are Related to More Frequent Recurrence in Patients with Hepatocellular Carcinoma after Curative Resection

Cai, Xiao-Yan,Wang, Jia-Xing,Yi, Yong,He, Hong-Wei,Ni, Xiao-Chun,Zhou, Jian,Cheng, Yun-Feng,Jin, Jian-Jun,Fan, Jia,Qiu, Shuang-Jian Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.2

Objectives: TCR-gamma-delta+T cells (${\gamma}{\delta}$ T cells) are non-conventional T lymphocytes that can recognize and eradicate tumor cells. Our previous studies showed that infiltration and function of ${\gamma}{\delta}$ T cells were substantially attenuated in hepatocellular carcinoma (HCC). However, their prognostic value was not clarified. Methods: The association between ${\gamma}{\delta}$ T cells and the clinical outcomes was determined by immunohistochemistry (IHC) in a HCC patient cohort (n = 342). Results:Immunohistochemistry showed decreased infiltration of ${\gamma}{\delta}$ T cells in tumoral tissues compared with paired peritumoral tissues. The counts of ${\gamma}{\delta}$ T cells in peritumoral tissues were negatively correlated with tumor size (P = 0.005). Survival analysis showed that the levels of peritumoral ${\gamma}{\delta}$T cells were related to both time to recurrence (TTR) and overall survival (OS) (P = 0.010 and P = 0.036, respectively) in univariate analysis, and related to TTR in multivariate analysis (P = 0.014, H.R. [95% CI] = 0.682 [0.502-0.927]). Furthermore, the level of peritumoral ${\gamma}{\delta}$ T cells showed independent prognostic value for TTR in Barcelona Clinic Liver Cancer (BCLC) stage A patients (P = 0.038, H.R. [95% CI] = 0.727 [0.537-0.984]). However, tumoral ${\gamma}{\delta}$ T cells did not show independent prognostic value for either TTR or OS in HCC patients. Conclusions: Low counts of ${\gamma}{\delta}$ T cells in peritumoral liver tissue are related to a higher incidence of recurrence in HCC and can predict postoperative recurrence, especially in those with early-stage HCC.

AN EMPIRICAL EXAMINATION OF THE PEER INFLUENCE ON CROWDFUNDING MARKETS

Yuho Chung,Yiwei Li,Jian-min Jia 글로벌지식마케팅경영학회 2016 Global Marketing Conference Vol.2016 No.7

Crowdfunding has recently emerged as a novel way for people to collect monetary donation from large numbers of internet users. Since 2009, the volume of crowdfunding has increased exponentially, reaching 16.2 billion in 2014. A growing number of literature starts to investigate social influence in crowdfunding that occurs when former backers, who make contribution to fund a project at an earlier stage of fund-raising period, make influences of the contribution decision of latter backers. Crowdfunding can be classified into four categories, namely, lending-based, equity-based, reward-based, and donation-based. The primary goal of lending-based and equity-based crowdfunding is to raise capital and borrow money from a number of investors or lenders in exchange for interest payment or equity share of a company. In contrast, reward-based crowdfunding or donation-based crowdfunding requires a project initiator to create a project, which raise fund to develop a new product (e.g., private good) or enhance the public interest (e.g., public good). In this study, we focus on the two most popular crowdfunding type: reward-based and donation-based crowdfunding projects. In reward-based crowdfunding, backers (or contributors) give a small amount of money in return for a reward such as a copy of creative work or pre-sell products. In donation-based crowdfunding, backers donate to projects for gratitude and the pleasure of giving and expect no compensation in exchange

Mitochondrial citrate accumulation drives alveolar epithelial cell necroptosis in lipopolysaccharide-induced acute lung injury

Yang Hui-Hui,Jiang Hui-Ling,Tao Jia-Hao,Zhang Chen-Yu,Xiong Jian-Bing,Yang Jin-Tong,Liu Yu-Biao,Zhong Wen-Jing,Guan Xin-Xin,Duan Jia-Xi,Zhang Yan-Feng,Liu Shao-Kun,Jiang Jian-Xin,Zhou Yong,Guan Cha-Xi 생화학분자생물학회 2022 Experimental and molecular medicine Vol.54 No.-

Necroptosis is the major cause of death in alveolar epithelial cells (AECs) during acute lung injury (ALI). Here, we report a previously unrecognized mechanism for necroptosis. We found an accumulation of mitochondrial citrate (citratemt) in lipopolysaccharide (LPS)-treated AECs because of the downregulation of Idh3α and citrate carrier (CIC, also known as Slc25a1). shRNA- or inhibitor–mediated inhibition of Idh3α and Slc25a1 induced citratemt accumulation and necroptosis in vitro. Mice with AEC-specific Idh3α and Slc25a1 deficiency exhibited exacerbated lung injury and AEC necroptosis. Interestingly, the overexpression of Idh3α and Slc25a1 decreased citratemt levels and rescued AECs from necroptosis. Mechanistically, citratemt accumulation induced mitochondrial fission and excessive mitophagy in AECs. Furthermore, citratemt directly interacted with FUN14 domain-containing protein 1 (FUNDC1) and promoted the interaction of FUNDC1 with dynamin-related protein 1 (DRP1), leading to excessive mitophagy-mediated necroptosis and thereby initiating and promoting ALI. Importantly, necroptosis induced by citratemt accumulation was inhibited in FUNDC1-knockout AECs. We show that citratemt accumulation is a novel target for protection against ALI involving necroptosis.