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Multilocus phylogeography and ecological niche modeling suggest speciation with gene flow between the two Bamboo Partridges

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Avian Research 2021年第2期12卷 227-236页

作者： Pengcheng Wang Chiafen yeh Jiang Chang Hongyan Yao Yiqiang Fu Chengte Yao Xiao Wang Shouhsien li Zhengwang Zhang Key Laboratory of Animal Ecology and Conservation Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China School of life Science National Taiwan Normal UniversityTaipei 11677China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China School of Ecology and Nature Conservation Beijing Forestry UniversityBeijing 100083China College of life Sciences Sichuan Normal UniversityChengdu 610101China Endemic Species Research Institute Nantou 55244China Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering College of Life SciencesBeijing Normal UniversityBeijing 100875China

Background:Understanding how species diversify is a long-standing question in *** allopatric speciation model is a classic hypothesis to explain the speciation *** model supposes that there is no gene flow during the divergence process of geographically isolated *** the contrary,the speciation with gene flow model supposes that gene flow does occur during the speciation *** allopatric species have gene flow during the speciation process is still an open ***:We used the genetic information from 31 loci of 24 chinese Bamboo Partridges(Bambusicola thoracicus)and 23 Taiwan Bamboo Partridges(***)to infer the gene flow model of the two species,using the approxi-mate Bayesian computation(ABC)*** ecological niche model was used to infer the paleo-distribution during the glacial *** also tested whether the two species had a conserved ecological niche by means of a back-ground similarity ***:The genetic data suggested that the post-divergence gene flow between the two species was terminated before the ***,our ecological niche modeling suggested that their ecological niches were highly conserved,and that they shared an overlapping potential distribution range in the last glacial ***:The allopatric speciation model cannot explain the speciation process of the two Bamboo *** results of this study supported a scenario in which speciation with gene flow occurring between the allopatric species and have contributed to our understanding of the speciation process.

关键词： Allopatric speciation Bamboo Partridge Evolution Reproductive isolation Speciation with gene flow

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Variational Bayesian Based IMM Robust GPS Navigation Filter

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Computers, Materials & Continua 2022年第7期72卷 755-773页

作者： Dah-Jing Jwo Wei-yeh Chang Department of Communications Navigation and Control EngineeringTaiwan Ocean University Keelung202301Taiwan TDK Taiwan Corp. YangmeiTaoyuan326021Taiwan

This paper investigates the navigational performance of Global Positioning System(GPS)using the variational Bayesian(VB)based robust filter with interacting multiple model(IMM)adaptation as the navigation *** performance of the state estimation for GPS navigation processing using the family ofKalman filter(KF)may be degraded due to the fact that in practical situations the statistics of measurement noise might *** the proposed algorithm,the adaptivity is achieved by estimating the timevarying noise covariance matrices based onVB learning using the probabilistic approach,where in each update step,both the system state and time-varying measurement noise were recognized as random variables to be *** estimation is iterated recursively at each time to approximate the real joint posterior distribution of state using the VB *** of the two major classical adaptive Kalman filter(AKF)approaches that have been proposed for tuning the noise covariance matrices is the multiple model adaptive estimate(MMAE).The IMM algorithm uses two or more filters to process in parallel,where each filter corresponds to a different dynamic or measurement *** robust Huber’s M-estimation-based extended Kalman filter(HEKF)algorithm integrates both merits of the Huber M-estimation methodology and *** robustness is enhanced by modifying the filter update based on Huber’s M-estimation method in the filtering *** proposed algorithm,referred to as the interactive multi-model based variational Bayesian HEKF(IMM-VBHEKF),provides an effective way for effectively handling the errors with time-varying and outlying property of non-Gaussian interference errors,such as the multipath *** examples are given to demonstrate the navigation performance enhancement in terms of adaptivity and robustness at the expense of acceptable additional execution time.

关键词： GPS variational bayesian Huber’sM-estimation interacting multiple model adaptive outlier multipath

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Penumbra lunar eclipse observations reveal anomalous thermal performance of Lunakhod 2 reflectors

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chinese Physics B 2022年第5期31卷 212-218页

作者： Tian-Quan Gao Cai-Shi Zhang Hong-Chao Zhao li-Xiang Zhou Xian-lin Wu Hsienchi yeh Ming li MOE Key Laboratory of TianQin Mission TianQin Research Center for Gravitational Physics&School of Physics and AstronomyFrontiers Science Center for TianQinCNSA Research Center for Gravitational WavesSun Yat-sen University(Zhuhai Campus)Zhuhai 519082China

As the signal reflected by the corner-cube reflector arrays is very weak and easily submerged during the full moon,we analyze the influence of the thermal effect of corner-cube reflector arrays on the intensity of lunar laser ranging *** ranging measurements during the penumbra lunar eclipse verify suspected thermal deformation in the Lunakhod 2 *** levels vary over two orders of magnitude as the penumbra eclipse *** can be explained by the change in the dihedral angle of the corner-cube reflectors caused by the *** results show that when the dihedral angle errors reach 1,the energy is reduced by 100 times compared with the ideal corner-cube *** the experiment,our findings suggest that when the corner-cube reflector arrays enter the penumbra of the earth,the effective echo signal level which reaches 0.18 photons/s far exceeds the historical level of the full ***,11 minutes after the penumbra lunar eclipse,the effective echo rate of Lunakhod 2 will drop two orders of *** mechanism can explain the acute signal deficit observed at full moon.

关键词： lunar laser ranging corner-cube reflector arrays dihedral angle errors penumbra lunar eclipse

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OPTIMAL GEOMETRIC PROCESS REPLACEMENT MODEL

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Acta Mathematicae Applicatae Sinica 1992年第1期8卷 73-81页

作者： LAM yeh The chinese University of Hong Kong Hong Kong

In this paper,we study the geometric process replacement model as follows:the successivesurvival times of the system form a nonincreasing geometric process while the consecutive repairtimes of the system constitute a non-decreasing geometric process,and the system is replacedat the time of the Nth failure after its installation or last *** on the long-runaverage cost per unit time,we determine the optimal replacement policy N,show the uniquenessof the policy N and discuss its monotonicity.

关键词： Survival Time Average Cost Math Application Replacement Model Process Replacement

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ToMFIR-based fault detection approach in frequency domain

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Journal of Systems Engineering and Electronics 2011年第1期22卷 33-37页

作者： Wen Chen Chih Ping yeh Hanlong Yang Division of Engineering Technology Wayne State University Detroit M148202 USA Vehicle Group Eaton Corporation Southfield MI 48076 USA

This paper is to explore further results for total measurable fault information-based residual（ToMFIR） approach to fault detection in dynamic *** ToMFIR contains the essential fault information and remains unaffected by control actions in a closed-loop *** is composed of controller residual and output residual and some of further results are developed in frequency *** the ability of detecting actuator and sensor faults,it is able to detect faults/failures resulting from the computer used for control purpose that generates control ***,all of existing fault detection schemes cannot achieve the same task at all.A practical DC motor example,with a PID controller,is used to demonstrate the effectiveness of the ToMFIR-based fault detection.A comparison with the standard observer-based technique is also provided.

关键词： fault detection total measurable fault informationbased residual(ToMFIR) output residuals controller residuals frequency domain.

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MULTIPliCATIVE PERTURBATIONS OF LOCAL α-TIMES INTEGRATED C-SEMIGROUPS

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Acta Mathematica Scientia 2017年第3期37卷 877-888页

作者： Nai-Sher yeh Chung-Cheng KUO Department of Mathematics Fu Jen Catholic University New Taipei City Taiwan China

We establish some left and right multiplicative perturbations of a local α-timesintegrated C-semigroup S（·） on a complex Banach space X with non-densely defined genera- tor, which can be applied to obtain some additive perturbation results concerning S（·）. Some growth conditions of the perturbations of S（·） are also established.

关键词： Integrated C-semigroup generator abstract Cauchy problem perturbation

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Trustworthiness Evaluation for Permissioned Blockchain-Enabled Applications

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Computers, Materials & Continua 2022年第11期73卷 2731-2755页

作者： Shi-Cho Cha Chuang-Ming Shiung Wen-Wei li Chun-Neng Peng Yi-Hsuan Hung Kuo-Hui yeh Department of Information Management National Taiwan University of Science and TechnologyTaiwanChina Department of Information Management National Dong Hwa UniversityHualienTaiwanChina Department of Computer Science and Engineering National Sun Yat-Sen UniversityKaohsiungTaiwanChina

As permissioned blockchain becomes a common foundation of blockchain-based circumstances for current organizations,related stakeholders need a means to assess the trustworthiness of the applications involved *** is extremely important to consider the potential impact brought by the Blockchain technology in terms of security and ***,this study proposes a rigorous security risk management framework for permissioned blockchain-enabled *** framework divides itself into different implementation domains,i.e.,organization security,application security,consensus mechanism security,node management and network security,host security and perimeter security,and simultaneously provides guidelines to control the security risks of permissioned blockchain applications with respect to these security *** addition,a case study,including a security testing and risk evaluation on each stack of a specific organization,is demonstrated as an implementation instruction of our proposed risk management *** to the best of our knowledge,this study is one of the pioneer researches that provide a means to evaluate the security risks of permissioned blockchain applications from a holistic point of *** users can trust the applications that adopted this framework,this study can contribute to the adoption of permissioned blockchain-enabled ***,application providers can use the framework to perform gap analysis on their existing systems and controls and understand the risks of their applications.

关键词： Permissioned blockchain blockchain security blockchain risk evaluation

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Reduced prostate branching morphogenes,s in stromal fibroblast, but not in epithelial, estrogen receptor a knockout mice

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Asian Journal of Andrology 2012年第4期14卷 546-555页

作者： Ming Chen Chiuan-Ren yeh Chih-Rong Shyr Hsiu-Hsia lin Iun Da Shuyuan yeh Departments of Urology and Pathology University of Rochester Medical Center Rochester New York 14642 USA Sex Hormone Research Center China Medical University Hospital Taichung 40402 Taiwan China

Early studies suggested that estrogen receptor alpha （ERa） is involved in estrogen-mediated imprinting effects in prostate development. We recently reported a more complete ERa knockout （KO） mouse model via mating β-actin Cre transgenic mice with floxed ERa mice. These ACTB-ERaKO male mice showed defects in prostatic branching morphogenesis, which demonstrates that ERa is necessary to maintain proliferative events in the prostate. However, within which prostate cell type ERa exerts those important functions remains to be elucidated. To address this, we have bred floxed ERa mice with either fibroblast-specific protein （FSP）-Cre or probasin-Cre transgenic mice to generate a mouse model that has deleted ERa gene in either stromal fibroblast （FSP-ERaKO） or epithelial （pes-ERaKO） prostate cells. We found that circulating testosterone and fertility were not altered in *** and pes-ERaKO male mice. Prostates of FSP-ERaKO mice have less branching morphogenesis compared to that of wild-type littermates. Further analyses indicated that loss of stromal ERa leads to increased stromal apoptosis, reduced expression of insulin-likegrowth factor-1 （IGF-1） and FGFIO, and increased expression of BMP4. Collectively, we have established the first in vivo prostate stromal and epithelial selective ERaKO mouse models and the results from these mice indicated that stromal fibroblast ERa plays important roles in prostatic branching morphogenesis via a paracrine fashion. Selective deletion of the ERa gene in mouse prostate epithelial cells by probasin-Cre does not affect the regular prostate development and homeostasis.

关键词： Cre-loxP estrogen receptor knockout prostate stromal-epithelial interaction

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20.231 Gbit/s tricolor red/green/blue laser diode based bidirectional signal remodulation visible-light communication system

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Photonics Research 2018年第5期6卷 422-426页

作者： liANG-YU WEI chin-WEI HSU CHI-WAI CHOW CHIEN-HUNG yeh Department of Photonics and Institute of Electro-Optical Engineering Taiwan Chiao Tung UniversityHsinchu 30010China Department of Electronic Engineering The Chinese University of Hong KongSha TinHong KongChina Department of Photonics Feng Chia UniversityTaichung 40724China

We propose and experimentally demonstrate a recorded 1-m bidirectional 20.231-Gbit/s tricolor R/G/B laser diode(LD) based visible-light communication(VLC) system supporting signal remodulation. In the signal remodulation system, an LD source is not needed at the client side. The client reuses the downstream signal sent from the central office(CO) and remodulates it to produce the upstream signal. As the LD sources are located at the CO, the laser wavelength and temperature managements at the cost-sensitive client side are not *** is the first demonstration, to our knowledge, of a >20 Gbit∕s data rate tricolor R/G/B VLC signal transmission supporting upstream remodulation.

关键词： bidirectional signal remodulation visible-light communication system blue laser

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Simultaneous range and radial velocity estimation with a single narrowband LFM pulse

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Journal of Systems Engineering and Electronics 2012年第3期23卷 372-377页

作者： Chunmao yeh Jian Yang Xiuming Shan Yingning Peng Department of Electronic Engineering Tsinghua UniversityBeijing 100084E R.China

The mismatch effect induced by the radial motion of a target is analyzed for linear frequency modulated （LFM） signals. Then, a novel integrated processing scheme is proposed to re- solve the delay-Doppler coupling effect in LFM pulse compression. Therefore the range and radial velocity of the target can be si- multaneously estimated with a narrowband LFM pulse. Finally, numerical simulation results demonstrate the effectiveness and good performance of the proposed method.

关键词： delay-Doppler coupling motion estimation linear fre- quency modulated (LFM) pulse extended filtering.

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