• 월간산업보건
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• s.345
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• pp.40-43
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• 2017

• 월간산업보건
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• s.367
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• pp.9-13
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• 2018

• 월간산업보건
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• s.368
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• pp.18-22
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• 2018

• 월간산업보건
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• s.365
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• pp.15-20
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• 2018

• 월간산업보건
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• s.366
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• pp.8-13
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• 2018

• Koreanishche Zeitschrift fur Deutsche Sprachwissenschaft
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• v.2
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• pp.101-128
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• 2000

In der vorliegenden Arbeit wurde der Realisierungsmechanismus der fakultativen $Erg\"{a}nzung$ aufgrund des zweidimensionalen Valenzmodells und des zweistufigen Semantikmodlells behandelt. Dabei wurde die $Fakultativit\"{a}t\;der\;Erg\"{a}nzung$ nicht als ein $Ph\"{a}nomen$ im Lexikon angesehen, sondern als ein $Ph\"{a}nomen$ auf der Ebene der Valenzrealisierung, das als Resultat des Zusammenspiels von valenzunabhangigen Faktoren zu betrachten ist. In der bisherigen Valenzforschung wurde die $Fakultativit\"{a}t\;als\;eine\;ausschlie{\ss}lich$ idiosynkratische Eigenschaft des einzelnen Verbs interpretiert, die man bei jedem Verb erlernen $mu{\ss}$. Gegen diese Auffassung wandte die vorliegende Arbeit ein, dass die $Fakultativit\"{a}t$ keine unvoraussagbare idiosynkratische Eigenschaft des einzelnen Verbs ist: Die $Fakultativit\"{a}t\;der\;Erg\;"{a}nzung$ kann durch $Regularit\"{a}ten$ allgemein vorausgesagt werden. Anhand der statischen Lokalisierungsverben im Deutschen wurde gezeigt, dass die $Fakultativit\"{a}t\;der\;lokalen\;Erg\;"{a}nzung$ von den konzeptuellen Prozessen $abh\"{a}ngt:$ Bei dem $Lokalisierungsproze{\ss}$ ist die Realisierung der lokalen $Erg\"{a}nzung$ notwendig. Dagegen ist die Realisierung der lokalen $Erg\"{a}nzung$ bei dem $Delokalisierungsproze{\ss}$ optional. Wenn man die $Fakultativit\"{a}t$ durch allgemeine $Regularit\"{a}ten\;erkl\"{a}ren$ kann, dann ist es nicht $n\"{o}tig,\;die\;Fakultativit\"{a}t$ bei jedem Verb im Lexikon zu markieren. Dadurch kann das mentale Lexikon enorm entlastet werden. Dies bedeutet $f\"{u}r$ deutschlernende $Ausl\"{a}nder$ eine $gro{\ss}e$ Erleichterung.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.13 no.1
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• pp.69-85
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• 2019

BeiDou navigation satellite system (BDS) is one of the four main types of global navigation satellite systems. The current system has been widely used by the military and by the aerospace, transportation, and marine fields, among others. However, challenges still remain in the BeiDou system, which requires rapid responses for delay-sensitive devices. A differential positioning algorithm called the data center-based differential positioning (DCDP) method is widely used to avoid the influence of errors. In this method, the positioning information of multiple base stations is uploaded to the data center, and the positioning errors are calculated uniformly by the data center based on the minimum variance or a weighted average algorithm. However, the DCDP method has high delay and overload risk. To solve these problems, this paper introduces edge computing to relieve pressure on the data center. Instead of transmitting the positioning information to the data center, a novel method called edge computing-based differential positioning (ECDP) chooses the nearest reference station to perform edge computing and transmits the difference value to the mobile receiver directly. Simulation results and experiments demonstrate that the performance of the ECDP outperforms that of the DCDP method. The delay of the ECDP method is about 500ms less than that of the DCDP method. Moreover, in the range of allowable burst error, the median of the positioning accuracy of the ECDP method is 0.7923m while that of the DCDP method is 0.8028m.

• Journal of Positioning, Navigation, and Timing
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• v.4 no.4
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• pp.205-211
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• 2015

The Global Navigation Satellite System (GNSS) is undergoing dramatic changes. Nowadays, much more satellites are transmitting navigation data at more frequencies. A multi-GNSS analysis is performed to improve the positioning accuracy by processing combined observations from different GNSS. The multi-GNSS technique can improve significantly the positioning accuracy. In this paper, we present a combined Global Positioning System (GPS), the GLObal NAvigation Satellite System (GLONASS), the China Satellite Navigation System (BeiDou), and the Quasi-Zenith Satellite System (QZSS) standard point positioning (SPP) method to exploit all currently available GNSS observations at Mokpo (MKPO) station in South Korea. We also investigate the multi-GNSS data recorded at MKPO reference station. The positioning accuracy is compared with several combinations of the satellite systems. Because of the different frequencies and signal structure of the different GNSS, intersystem biases (ISB) parameters for code observations have to be estimated together with receiver clocks in multi-GNSS SPP. We also present GPS/GLONASS and GPS/BeiDou ISB values estimated by the daily average.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.6
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• pp.3631-3634
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• 2013

MicroRNAs (MiRNAs) play important roles in coordinating a variety of cellular processes and abnormal expression has been linked to the occurrence of several cancers. The miRNA miR-451 is downregulated in colorectal carcinoma (CRC) cells, suggested by several research groups including our own. In this study, synthetic miR-451 mimics were transfected into the SW620 human CRC cell line using Lipofectamine 2000 and expression of miR-451 was analyzed by real time PCR, while expression of CAB39, LKB1, AMPK, AKT, PI3K and Bcl2 was analyzed by Western blot, and cell growth was detected by MTT assay. In comparison to the controls, a significant increase in the expression of miR-451 was associated with significantly decreased expression of CAB39, LKB1, AMPK, AKT, PI3K and Bcl2. The capacity of cell proliferation was significantly decreased by miR-451 expression, which also inhibited cell growth. Our study confirmed that miR-451 has a repressive role in CRC cells by inhibiting cell growth through down-regulating the P13K/AKT pathway.

• Smart Structures and Systems
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• v.14 no.5
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• pp.765-784
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• 2014

In comparison with conventional shape memory actuated structures, antagonistic shape memory alloy (SMA) actuators permits a fully reversible two-way response and higher response frequency. However, excessive internal stress could adversely reduce the stroke of the actuators under repeated use. The two-way shape memory effect might further decrease the range of the recovered strain under actuation of an antagonistic SMA actuator unless additional components (e.g., spring and stopper) are added to regain the overall actuation capability. In this paper, the performance of all four possible types of SMA actuation schemes is investigated in detail with emphasis on five key properties: recovered strain, cyclic degradation, response frequency, self-sensing control accuracy, and controllable maximum output. The testing parameters are chosen based on the maximization of recovered strain. Three types of these actuators are antagonistic SMA actuators, which drive with two active SMA wires in two directions. The antagonistic SMA actuator with an additional pair of springs exhibits wider displacement range, more stable performance under reuse, and faster response, although accurate control cannot be maintained under force interference. With two additional stoppers to prevent the over stretch of the spring, the results showed that the proposed structure could achieve significant improvement on all five properties. It can be concluded that, the last type actuator scheme with additional spring and stopper provide much better applicability than the other three in most conditions. The results of the performance analysis of all four SMA actuators could provide a solid basis for the practical design of SMA actuators.