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Information Fusion Filter for Multi-rate Multi-sensor Systems
Jing Ma,Hao Jin,Tian Tian,Wei Zhang 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.1
This paper is concerned with the information fusion filtering problem for a class of multi-rate multi-sensor systems, where the system is described at the highest sampling rate and different sensors may have different lower sampling rates. Firstly, the local filters (LFs) at state updating points are proposed by using the LFs at measurement sampling points. Then, the distributed suboptimal fusion filter is obtained by the well-known covariance intersection fusion (CIF) algorithm. The filtering error variance matrices are derived to obtain the fusion weights. The computational cost is reduced since the cross-covariance matrices between any two local filters are avoided. Simulation example verifies the correctness and feasibility of the proposed algorithm.
Hao Jin,Jing Ma,Yun Li,Ming Zhao 보안공학연구지원센터 2015 International Journal of Multimedia and Ubiquitous Vol.10 No.2
The distributed fusion filtering problem is studied for multi-rate sampling stochastic singular linear systems with multiple sensors and stochastic multiplicative noises. The system is described at the highest sampling rate and different sensors may have different lower sampling rates. The white noise in measurement matrix is introduced to describe the stochastic disturbance. Firstly, based on decomposition in canonical form, the original singular system is transformed into fast and slow two subsystems. For the two reduced-order subsystems, the local filters (LFs) are given based on the “dummy” random variables. The cross-covariance matrices between any two local filtering errors are derived. Further, the distributed fusion filter weighted by matrices (FFWM) is obtained for the original singular system based on the well-known fusion algorithm in the linear minimum variance sense. Simulation example verifies the correctness and feasibility of the proposed algorithm.
Jing-Hao Cui,Qing-Ri Cao,Yun-Jaie Choi,Kyung-Hoon Lee,이범진 대한약학회 2006 Archives of Pharmacal Research Vol.29 No.8
Bifidobacteria-loaded alginate poly-l-lysine microparticles (bap microparticles) were prepared using an air atomization method and then freeze-dried. The viability of the bap microparticles was investigated as a function of the amount of the bifidobacteria cultures, and the addition of a yeast extract, cryoprotectants, antioxidants and neutralizer. The size of the bap microparticles with and without the bifidobacteria was 84.8±28.5 μm (mean±standard deviation) and 113.1±38.5 μm, respectively. The surface morphology was slightly ellipsoid and wrinkled regardless of the incorporating bifidobacteria. The viability gradually decreased with increasing freeze-drying time. Free-flowing powdered bap microparticles were obtained at least 12 h after freeze-drying the wetted slurry of bap microparticles. However, the particles tended to aggregate when either lactose or ascorbic acid was added. The addition of a yeast extract, cryoprotectants (glycerol and lactose), antioxidants (NaHSO3 and ascorbic acid) and neutralizer (Mg3(PO4)2) resulted in a significantly higher viability of the bifidobacteria in the bap microparticles after freeze-drying (0.34-1.84 log) compared with the culture alone.
징하오(Hao Jing),성리쥐안(Lijuan Sheng),곽춘종(Choonjong Kwak) 한국생산관리학회 2021 한국생산관리학회지 Vol.32 No.2
패밀리 기반 배정 규칙은 준비(setup) 과정에 대한 소요 시간을 줄여 시스템 성과를 향상시킨다. 다른 한편으로는 작업 현장에서 패밀리 기반 배정의 적용 위치가 패밀리 기반 배정 규칙의 성과에 영향을 끼칠 수 있다. 그러나 지금까지 패밀리 기반 배정의 적용 위치를 다룬 연구는 매우 드물었다. 본 논문은 패밀리 기반 배정 규칙과 그 적용 위치를 고려한 새로운 생산 통제 문제를 다룬다. 본 연구는 먼저 이 문제를 해결하기 위한 의사결정 체계를 설명한다. 패밀리 기반 배정 규칙과 그 적용 위치에 대한 연구는 2단계 흐름 공정(two-stage flow shop)에서 시뮬레이션 모델링 및 통계 분석을 통해 수행된다. 동시에 몇 가지 중요한 요인이 시스템 성과에 미치는 영향도 조사한다. 본 연구에서는 패밀리 기반 배정 규칙과 관련하여 서로 다른 적용 위치에 따른 성과 차이를 고찰한다. 패밀리 기반 배정의 적용 위치가 가변적일 때, 본 연구 결과는 패밀리 기반 배정 규칙을 효율적으로 적용하기 위한 통찰력을 제공한다. Family-based dispatching rules reduce setup time and improve system performance. However, few studies have examined how the location of family-based dispatching rules can impact their performance on a shop floor. This study addressed a new production control problem of family based dispatching rules and their application locations using a decision-making framework at a two-stage flow shop. This study explored the effects of several important factors on the system performance using statistical analysis and simulation modeling. This research also compared the performance differences arising from different locations for family-based dispatching. This paper’s results offer insights into the optimal placement of family-based dispatching rules.
Hou Jing-Hao,He Yu,Ma Yu,Guo Jin-Meng,Wei Zhi-Qiang,Yan Qi,Zhang Jin,Dong Shuanglin 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Some chemosensory genes are found to be expressed specifically or highly in the male reproductive system, suggesting their importance in male reproductive physiology. In this paper, we identified chemosensory genes expressed in the male reproductive system of the moth pest Spodoptera exigua by transcriptome and proteome sequencing, and further determined expression patterns of these genes regarding antennae and different tissues of the male reproductive system (testes, vas deferens, seminal vesicles, ejaculatory ducts, male accessory glands) by the real-time quantitative PCR (qPCR). Transcriptome analysis showed that 46 chemosensory genes were expressed in the male reproductive system of S. exigua, including 18 odorant binding proteins (OBPs), 12 che mosensory proteins (CSPs), 10 odorant receptors (ORs) and 6 other chemosensory genes. Further qPCR mea surements revealed that 14 chemosensory genes were expressed specifically or highly in the male reproductive tissues, relative to that in male antennae. Of the 14 genes, OBP17, OBP22, OBP27 and GR43 were specifically expressed in the testes; OBP20 was specifically expressed in the vas deferens; and PBP4 was specifically expressed in the male accessory glands. In addition, proteome data of the spermatophore confirmed that at least 4 OBPs and one CSP were transmitted from males to females, suggesting their function in the reproductive physiology of mated females. The results provide insights into the functional diversity of chemosensory genes, and bases for exploring functions of these chemosensory genes in male reproductive physiology.
Computed Tomography Manifestations of Histologic Subtypes of Retroperitoneal Liposarcoma
Lu, Jing,Qin, Qin,Zhan, Liang-Liang,Yang, Xi,Xu, Qing,Yu, Jing,Dou, Li-Na,Zhang, Hao,Yang, Yan,Chen, Xiao-Chen,Yang, Yue-Hua,Cheng, Hong-Yan,Sun, Xin-Chen Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.15
Objective: Liposarcoma (LPS) is the most common soft tissue sarcoma and accounts for approximately 20% of all mesenchymal malignancies, often occurring in deep soft tissue of retroperitoneal space. Accurate preoperative diagnosis is therefore necessary. We explored whether computed tomography (CT) could be used to differentiate between the various types of retroperitoneal liposarcoma (RPLS). Method: Forty-seven cases of RPLS, diagnosed surgically and histologically, were analyzed retrospectively. CT features were correlated with postoperative pathological appearance. Results: The study radiologist identified 29, 11, 2, 2 and 3 RPLS as atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL), dedifferentiated liposarcoma (DDL), myxoid/round cell liposarcoma (ML/RCL), pleomorphic liposarcoma (PL) and mixed-type liposarcoma. Analysis of CT scans revealed the following typical findings of the different subtypes of RPLS: ALT/WDL was mainly visible as a well-delineated fatty hypodense tumor with uniform density and integrity margin; DDL was marked by the combination of focal nodular density and hypervascularity. ML/RCL, PL and mixed liposarcoma showed malignant biological behaviour and CT findings need further studies. Conclusions: CT scanning can reveal important details including internal components, margins and surrounding tissues. Based on CT findings, tumor type can be roughly evaluated and biopsy location and therapeutic scheme guided.