Motives for Empathy among Clinical Nurses in China: A Qualitative Study

Zhu, Yu,He, Ming-Mei,Zhu, Ji-Min,Huang, Li,Li, Bai-Kun 한국간호과학회 2020 Journal of Korean Academy of Nursing Vol.50 No.6

돈분을 이용한 열분해공정 바이오오일의 특성

Zhu Kun,최홍림(Hong L. Choi) 유기성자원학회 2008 유기물자원화 Vol.16 No.4

본 연구에서는 돈분을 이용한 열분해공정(pyrolysis)에 의한 바이오오일의 특성을 분석하여 보고하였다. 기본적으로 bio-oil 생산을 위한 pilot auger형 반응기는 400°C∼600°C의 고온을 유지하였다. 바이오오일의 특성은 수질분석, 열량가, 원소분석, GC/MS를 이용한 마이오일의 원소, 1H NMR분광기에 의한 functional group 구명 등을 포함한다. 돈분시료를 이용한 바이오오일 생산량은 pilot auger 반응기의 온도가 550°C일 때 바이오일 생산율은 질량의 21%로서 최대를 나타내었다. 이 결과는 본 연구에서 연속 auger형 반응기의 이송이 편리하고 bio-oil 생산량이 적지 않아 대체 축분처리기술의 하나로 검토할 수 있음을 보였다. 그러나 auger 반응기의 원료로의 열전도가 유동상반응조보다 낮아서 향후 이를 개선하기 위한 연구가 성공적으로 수행되면 바이오오일 생산량을 제고시킬 수 있을것으로 판단된다. The characteristics of the bio-oil produced by the pyrolysis process with pig feces was investigated in this paper. The continuous auger-type reactor produced bio-oil was maintained at the temperature range of 400 to 600°C, which was higher than a typical that in a conventional pyrolysis system. The pig feces was used as the feedstock. The bio-oil and its compositions were characterized by water analysis, heating values, elemental analysis, bio-oil compounds, by Gas Chromatography/Mass Spectrometry (GC/MS), and functional group by 1H NMR spectroscopy. It was found that the maximum bio-oil yields of 21% w.t. was achieved at 550°C. This result suggested that this auger reactor might be a potential technology for livestock waste treatment to produce bio-oil because it is able to be improved to reach higher efficiency of biooil production in further study. The pyrolysis system reported herein had low heat transfer into the feedstock in the auger reactor so that it needs improve the heat conduction rate of the system in further study.

Effect of Pig Feces and Pig Waste Mixture Compositions on Bio-oil Production by Pyrolysis Process

Zhu Kun,신중두,백이,최홍림 유기성자원학회 2009 유기물자원화 Vol.17 No.4

Pyrolysis is recently used as one of alternative methods of animal waste treatment. In this study bio-oil was produced at 550℃ in an auger reactor through pyrolysis process. Two pig waste mixtures were used, pig feces mixed with rice husks and pig feces mixed with sawdust. The main compositions of hemicellulose, lignin, cellulose, protein, and fat were analyzed chemically. Based on the main composition results obtained, the contents of holocellulose (the sum of hemicellulose and cellulose) and lignin had a significant positive effect on bio-oil production, and there was a significant negative effect of ash content on bio-oil yield. The interactions between the different feedstocks were evaluated, and it was concluded that the interaction between pig feces and rice husks was minimal, whereas the interaction between pig feces and sawdust was significant.

Olaparib plus bevacizumab as a first-line maintenance treatment for patients with advanced ovarian cancer by molecular status: an updated PAOLA-1 based cost-effectiveness analysis

Youwen Zhu,Qiuping Yang,Kun Liu,Hui Cao,Hong Zhu 대한부인종양학회 2024 Journal of Gynecologic Oncology Vol.35 No.1

Objective: The PAOLA-1 trial (NCT02477644) reported final sur vival benefit associated witholaparib plus bevacizumab maintenance treatment of patients with advanced ovarian cancer(AOC) based on molecular status. Our aimed to compare the cost-effectiveness of olaparibplus bevacizumab for overall patients, patients with a breast cancer susceptibility genes(BRCA) mutation, homologous recombination deficiency (HRD), or HRD without BRCAmutations AOC from the context of the American healthcare system. Methods: Analysis of health outcomes in life-years (LYs), quality-adjusted life-years (QALYs),and the incremental cost-effectiveness ratio (ICER) in various molecular status-based AOCpatient at a $150,000/QALY of willingness-to-pay was performed using a state-transitionedMarkov model with a 20-year time horizon. Meanwhile, sensitivity analyses assessments werealso used to gauge the model’s stability. Results: The ICERs of olaparib plus bevacizumab versus bevacizumab alone were $487,428($374,758), $249,579 ($191,649), $258,859 ($198,739), and $270,736 ($206,640) per QALY(LY) in the overall patients, patients with BRCA mutations, patients with HRD, and patientswith HRD without BRCA mutations AOC, respectively, which indicated that The ICERs washigher than $150,000/QALY in the US. Progression-free sur vival (PFS) value and olaparib costemerged as the primar y influencing factors of these findings in the sensitivity analysis. Conclusion: At current cost levels, olaparib plus bevacizumab treatment is not a cost-effectivetreatment for patients with AOC regardless of their molecular status in the US. However, thismaintenance treatment may be more favorable health advantages for patients with BRACmutations AOC.

A New Kmeans Clustering Algorithm for Point Cloud

Kun Zhang,Weihong Bi,Xiaoming Zhang,Xinghu Fu,Li Zhu,Kunpeng Zhou 보안공학연구지원센터 2015 International Journal of Hybrid Information Techno Vol.8 No.9

With development of 3D scanner, it becomes more convenient to access point data. However, for processing the large-scale point cloud, it raised a new challenge for computer graphics. This paper places an emphasis on the point data own characteristics, and then the point data have been divided into certain point sets by clustering algorithm, that is will be divided into different clusters. In order to suit for the point data organization or space division, the clustering algorithm would be improved. This paper provided a new Kmeans algorithm with density constraints. Before processing the point cloud by Kmeans algorithm with density constraints, the density of the point cloud have been defined in this paper, the density of the point cloud can be used for quantification of the convergence. Finally, the Kmeans algorithm with density constraints is verified by the experiment results. Our experiment showed that the improved Kmeans can reduce the processing time, especially, As the increase of the value of K, that is number of cluster, the calculating time of the clustering algorithm can be decreased greatly. In addition, with the increases of the the scale of data size, the stability of the improved Kmeans algorithm has been verified.

Effects of Lactobacillus and Cellulase on Quality of Bi-crop Silage of Whole Crop Corn and Common Vetch

Kun Wang,Zhu Yu,Tao Shao 한국초지조사료학회 2009 한국초지조사료학회 학술대회논문집 Vol.2009 No.08

Photonic Generation of Frequency-tripling Vector Signal Based on Balanced Detection without Precoding or Optical Filter

Kun Qu,Shanghong Zhao,Xuan Li,Zihang Zhu,Qinggui Tan 한국광학회 2018 Current Optics and Photonics Vol.2 No.2

A novel approach for frequency-tripling vector signal generation via balanced detection without precoding and optical filter is proposed. The scheme is mainly utilizing an integrated dual-polarization quadrature phase shift keying (DPQPSK) modulator. In the DPQPSK modulator, one QPSK modulator is driven by an RF signal to generate high-order optical sidebands, while the other QPSK modulator is modulated by I/Q data streams to produce baseband vector signal as an optical carrier. After that, a frequency-tripling 16-quadrature-amplitude-modulation (16QAM) vector millimeter-wave (mm-wave) signal can be obtained by balanced detection. The proposed scheme can reduce the complexity of transmitter digital signal processing. The results show that, a 4 Gbaud baseband 16QAM vector signal can be generated at 30 GHz by frequency-tripling. After 10 km single-mode fiber (SMF) transmission, the constellation and eye diagrams of the generated vector signal perform well and a bit-error-rate (BER) below than 1e-3 can be achieved.

The game strategy of the enterprise reliability development

Kun Tian,Chang"an Zhu,Xia Ge,Zhicheng Yao,Lei Li 인하대학교 정석물류통상연구원 2009 인하대학교 정석물류통상연구원 학술대회 Vol.2009 No.10

Due to the increasing importance of equipment reliability and asymmetric information between the military and military enterprises, it is of great practical significance to study equipment reliability. This paper first reviews the current prevalent game model of both entities, and points out its insufficiency. Then, to resolve the problem, the paper constructs a game model based on penalty mechanism and obtains an optimum equilibrium. Finally, this paper makes a detailed analysis on the game strategies of both participants, which provides useful suggestions to the equipment reliability improvement.

Preparation of Ultra Fine Alumina Powder Via Ammonium Aluminium Carbonate Hydroxide

Zhu, Tun,Shin, Kun-Chul 江原大學校 産業技術硏究所 2004 産業技術硏究 Vol.24 No.B

The ultra fine gamma-alumina powder was prepared via ammonium aluminium carbonate hydroxide (AACH). The XRD, SEM, BET, thermal analysis were used to characterize the samples. The effects of various reaction parameters as concentration, of solution, anion on specific area, PH, aging time and thermal decomposition condition on the produced AACH and alumina were discussed.

Pathological Impact on the Phyllosphere Microbiota of Artemisia argyi by Haze

( Yu-zhu Zhang ),( De-yu Jiang ),( Chi Zhang ),( Kun Yang ),( Huai-fu Wang ),( Xiu-wen Xia ),( Wei-jun Ding ) 한국미생물생명공학회(구 한국산업미생물학회) 2021 Journal of microbiology and biotechnology Vol.31 No.4

The pathological impact of haze upon the phyllosphere microbiota awaits investigation. A moderate degree of haze environment and a clean control were selected in Chengdu, China. Artemisia argyi, a ubiquitously distributed and extensively applied Chinese herb, was also chosen for experiment. Total genome DNA was extracted from leaf samples, and for metagenome sequencing, an Illumina HiSeq 2500 platform was applied. The results showed that the gene numbers of phyllosphere microbiota derived from haze leaves were lower than those of the clean control. The phyllosphere microbiota derived from both haze and clean groups shared the same top ten phyla; the abundances of Proteobacteria, Actinomycetes and Anorthococcuso of the haze group were substantially increased, while Ascomycetes and Basidiomycetes decreased. At the genus level, the abundances of Nocardia, Paracoccus, Marmoricola and Knoelia from haze leaves were markedly increased, while the yeasts were statistically decreased. KEGG retrieval demonstrated that the functional genes were most annotated to metabolism. An interesting find of this work is that the phyllosphere microbiota responsible for the synthesis of primary and secondary metabolites in A. argyi were significantly increased under a haze environment. Relatively enriched genes annotated by eggNOG belong to replication, recombination and repair, and genes classified into the glycoside hydrolase and glycosyltransferase enzymes were significantly increased. In summary, we found that both structure and function of phyllosphere microbiota are globally impacted by haze, while primary and secondary metabolites responsible for haze tolerance were considerably increased. These results suggest an adaptive strategy of plants for tolerating and confronting haze damage.