Piri Keşif Aracı

Kaynak 1: http://www.dart-europe.eu/full.php?id=55476 arayıcılığı görüntüle.
Kaynak 2: http://www.dart-europe.eu/full.php?id=884821 arayıcılığı görüntüle.

Sınıflandırma :

Biyotıp %89

Apoptoz %96

2

Identification of a Bipolar Disorder Vulnerable Gene CHDH at 3p21.1

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Molecular Neurobiology

Yayıncı:

Springer Science and Business Media LLC

Yazar(lar) :

Hong Chang

Yıl :

2016

Hong Chang

Ek Bilgiler

DOI : 10.1007/s12035-016-0041-x

ISSN: 0893-7648
Sayı: 7
Cilt: 54
Sayfa: 5166-5176

3

RNAi-mediated knockdown of target genes: a promising strategy for pancreatic cancer research

Dergi Makalesi

Kaynak :

Springer Nature

Dergi:

Cancer Gene Therapy

Yayıncı:

Springer Nature

Yazar(lar) :

Hong Chang

Konu :

Biomedicine, general, Gene Therapy, Gene Expression

Yıl :

2007

Hong Chang

Özet Ek Bilgiler

Pancreatic cancer is one of the most aggressive malignancies with a very poor prognosis, partially due to its very low accessibility to resection and resistance to chemoradiotherapy. As such, it is reasonable to find more effective, specific therapies and the related therapeutic targets. The identification of certain genes contributing to the tumorigenesis and poor prognosis provides the specific targets for efficient silencing by RNA interference (RNAi). As a powerful tool to suppress gene expression in mammalian cells, RNAi can be directed against pancreatic cancer through various pathways, including the inhibition of overexpressed oncogenes, suppression of tumor growth, metastasis and enhancement of apoptosis. In combination with chemoradiotherapy agents, RNAi can also attenuate the chemoradiation resistance of pancreatic cancer. In addition, RNAi has been used to define the ‘loss of function’ of endogenous genes in pancreatic cancer. This review provides a brief introduction to recent developments of RNAi applications in pancreatic cancer studies and suggestions for further exploration. It substantially demonstrates that RNAi holds a promising therapeutic potential as a future treatment for pancreatic cancer.

DOI : 10.1038/sj.cgt.7701063

ISSN: 1476-5500
Cilt: 14
Sayı: 8
Sayfa: 677-685

Sınıflandırma :

Biyotıp %100

Apoptoz %37

Gen Tedavisi %31

Gen İfadesi %22

4

Identification of damage mode in AZ31 magnesium alloy under tension using acoustic emission

Dergi Makalesi

Kaynak :

Science Direct

Dergi:

Transactions of Nonferrous Metals Society of China

Yayıncı:

Elsevier

Yazar(lar) :

Hong CHANG

Yıl :

2015

Hong CHANG

Ek Bilgiler

DOI : 10.1016/s1003-6326(15)63790-6

ISSN: 1003-6326
Sayı: 6
Cilt: 25
Sayfa: 1840-1846

Sınıflandırma :

Malzeme Bilimi %100

Metalik Malzemeler %95

5

Hydraulic Fracturing in Particulate Materials

Tez

Kaynak 1:

Dissertation.com

Kaynak 2:

NDTLD Thesis

Dergi:

Georgia Tech

Yayıncı:

Georgia Tech

Yazar(lar) :

Hong Chang

Konu :

Fluid leak-off , Fracture geometry , Cavity Expansion , Shear bands , Fluid flow localization , Cohesionless materials , Particulate materials , Soft sediments , Fracture mechanics , Hydraulic fracturing

Yıl :

2004

Hong Chang

Yayıncı Web Siteleri

Özet Ek Bilgiler

For more than five decades, hydraulic fracturing has been widely used to enhance oil and gas production. Hydraulic fracturing in solid materials (e.g., rock) has been studied extensively. The main goal of this thesis is a comprehensive study of the physical mechanisms of hydraulic fracturing in cohesionless sediments. For this purpose, experimental techniques are developed to quantify the initiation and propagation of hydraulic fractures in dry particulate materials. We have conducted a comprehensive experimental series by varying such controlling parameters as the properties of particulate materials and fracturing fluids, boundary conditions, initial stress states, and injection volumes and rates. In this work, we suggest principle fundamental mechanisms of hydraulic fracturing in particulate materials and determine relevant scaling relationships (e.g., the interplay between elastic and plastic processes). The main conclusion of this work is that hydraulic fracturing in particulate materials is not only possible, but even probable if the fluid leak-off is minimized (e.g., high flow rate, high viscosity, low permeability). Another important conclusion of this work is that all parts of the particulate material are likely to be in compression. Also, the scale effect (within the range of the laboratory scales) appears to be relatively insignificant, that is, the observed features of fractures of different sizes are similar. Based on the observed fracture geometries, and injection pressures we suggested three models of hydraulic fracturing in particulate materials. In the cavity expansion or ??e driving model, the fracturing fluid is viewed as a sheet pile (blade) that disjoints the host material, and the cavity expansion occurs at the fracture (blade) front. The shear banding model is also consistent with a compressive stress state everywhere in the particulate material and explains the commonly observed beveled fracture front. The model of induced cohesion is based on the fluid leak-off ahead of the fracture front. The induced cohesion may be caused by the tensile strain near the fracture tip (where the stress state is also compressive), which, in turn, induces the cavitation of the leaked-off fluid and hence capillary forces.

Kaynak 1: http://www.dissertation.com/abstracts/1750765 arayıcılığı görüntüle.
Kaynak 2: http://search.ndltd.org/show.php?id=oai%3Aunion.ndltd.org%3AGATECH%2Foai%3Asmartech.gatech.edu%3A1853%2F4957&back=http%3A%2F%2Fsearch.ndltd.org%2Fsearch.php%3Fq%3D%26source_set_names%3D%26year_start%3D%26year_end%3D%26language%255B0%255D%3Denglish%26language%255B1%255D%3Den_us%26start%3D410630 arayıcılığı görüntüle.

Tez türü: PhD

6

The Tectonics of China Data, Maps and Evolution By Tianfeng Wan

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Geosciences Journal

Yayıncı:

Springer Link

Yazar(lar) :

Ki-Hong Chang

Konu :

arth Sciences

Yıl :

2012

Ki-Hong Chang

Ek Bilgiler

DOI : 10.1007/s12303-012-0008-5

ISSN: 1598-7477
Cilt: 16
Sayı: 1
Sayfa: 85-89

Sınıflandırma :

Yer Bilimleri %81

Yapısal Jeoloji %40

Tarihsel Jeoloji %26

7

Yellow Sea Transform Fault (YSTF) and the developemnt of Korean Peninsula

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Russian Journal of Pacific Geology

Yayıncı:

Springer Link

Yazar(lar) :

Ki-Hong Chang

Konu :

eology

Yıl :

2015

Ki-Hong Chang

Özet Ek Bilgiler

The Yellow Sea Transform Fault (YSTF), the boundary between the Korean Peninsula and the South China Plate was a repeatedly reactivated ancient fault, extant since 1 Ga or more ago. Similarly polycyclic continental collisions along the Qinling-Dabie-Sulu (QDS) suture dispatched the lateral (vectorial) collisional effects eastwardly toward the Korean Peninsula across YSTF, the east end of the QDS belt. The Korean Peninsula, coexisted with YSTF, has been a promontory of the Sino-Korean Plate (SKP) at least since the Rodinia assembly, ca 1 Ga. The Jarly Paleozoic rift origin of the Okcheon Trough, a major aulacogen developed within the Korean Peninsula of the Sino-Korean Plate is attributed to the transform role of the YSTF. Euring the Middle Paleozoic, the Yangtze Plate, an inherent component of the South China Plate, collided SKP so mildly and enduringly that SKP had to develop the Late Ordovician-Early Carboniferous ‘great hiatus’ over the cratonic SKP. Contemporaneously, the clustered aulacogens were formed over an area near the YSTF. It is envisioned that during the middle Paleozoic, the compressed part of the SKP by the eastward-pushing Yangtze Plate formed an extensional upper crust where the aulacogens formed. The Yangtze sea invaded the aulacogens where the clastic sediments of the mixed environment were dominated by the supply from the Yangtze Plate as witnessed by the clastic zircon grains showing the Yangtze-akin isotope dates. The development of both the middle Paleozoic ‘great hiatus’ and the clustered aulacogens represents the Caledonian tectonic phase though scarcely accompanied deformations or an orogeny. The Carboniferous-Permian metamorphism recorded in the Middle Paleozoic aulacogens represents the Hercynian (Variscan) phase, but without obvious structural deformations. The deepest subduction and the most intensive collision of the Yangtze Plate along the Paleotethyan suture was made in the late Permian-mid-Triassic time, the Indosinian phase. The coeval Songnim Orogeny in Korea was similarly intensive, though it was a derived, secondary, orogeny propagated ultimately from the QDS collision belt. Because of the eastward compression derived then from the QDS collision belt, YSTF was so deformed and considerably pushed eastward that it now occurs as a deformed-dislocated fault zone called the West Marginal Fault of Korean Peninsula (WMF in Fig. 1). The location of the mid-Triassic Korean Peninsula was inserted between the eastwardly compressing marginal Yangtze Plate and the counter balancing Permian-Triassic subduction-metamorphic-accretionary complex of the Japanese Pacific. Such a sandwich tectonics effectively intensified the Indosinian Songnim Orogeny of Korea.

DOI : 10.1134/S1819714015020037

Anahtar Kelimeler : Sino-Korean Plate, Korean Peninsula, Yellow Sea Transform Fault, Indosinian Tectonism, Qinling-Dabie-Sulu Suture, Songnim (Songrim) Orogeny, Derived (Secondary) Orogeny

ISSN: 1819-7159
Cilt: 9
Sayı: 2
Sayfa: 81-95

Sınıflandırma :

Yer Bilimleri %100

Yapısal Jeoloji %90

8

Schistosomiasis control in China

Dergi Makalesi

Kaynak :

Directory of Open Access Journals (DOAJ)

Dergi:

Memórias do Instituto Oswaldo Cruz.

Yazar(lar) :

Hong-Chang Yuan

Yıl :

1995

Hong-Chang Yuan

Piri Tam Metin Bulucu Özet Ek Bilgiler

After three decades' efforts, schistosomiasis japonica were controlled in one-third (4/12) of endemic provinces and 68.2 (259/380) of endemic counties throughout the country. The remaining 121 endemic counties are located primarily in the lake and mountainous regions. The epidemiological and ecological features of the lake and mountainous areas are different from the other endemic areas. The major schistosomiasis control efforts in China can be characterized as follows: (1) Application of centralized leadership and management, since schistosomiasis control is a task not only of the Ministry of Public Health, but also of all local governments in the endemic areas; (2) Integration of actions taken by various departments or bureaus, such as agriculture, water conservation and public health; (3) Promotion of mass participation; (4) Organization of strong professional teams; (5) Raising sufficient funds. Strategies on schistosomiasis control applied in different areas are divided into three levels: (1) In the areas where the schistosomiasis has been successfully controlled, surveillance must be maintained and immediate action should be taken where new infections occur and/or vector snails are found, so that control can be reestablished quickly; (2) In the areas where schistosomiasis has been partially controlled, any residents and/or live-stock infected should be examined and treated promptly with due care, and environment modifying and/or mollusciding must be used to eliminate the remaining snails; (3) In the areas where transmission has not been controlled, the main strategy is to control morbidity. Mass or selective chemotherapy with praziquental should be applied to both infected persosns and the live-stock, and environment modification for the snail-ridden areas should be taken but should be coordinated with agriculture where possible. Advance cases must be treated; and epidemics of Katayama fever prevented; water supply and sanitation shoud be improved and health education emphasized. Annual mass or selective chemotherapy with praziquental both reduces the prevalence rate and decreases the intensity of the infection for inhabitants and live-stock. As a consequence of the therapy a low prevalence rate can be obtained in a short time. The length of such arrangement period can be decided in accordance with the prevalence of the infection before the drug program is begun. Therefore,a maintenance phase is urgently needed. As China's ecomony expands and people's living standard rises, schistosomiasis will be controlled more effectively and successfully.

DOI : 10.1590/S0074-02761995000200031

Anahtar Kelimeler : schistosomiasis japonica, control, China

Cilt: 90
Sayı: 2
Sayfa: 297 - 301

Sınıflandırma :

Coğrafya %48

Jeomorfoloji %26

Gelişim ve Sürdürülebilirlik %23

Biyotıp %30

Tropik ilaç %81

9

Epidemiological features and control of schistosomiasis japonica in China

Dergi Makalesi

Kaynak :

Directory of Open Access Journals (DOAJ)

Dergi:

Memórias do Instituto Oswaldo Cruz.

Yazar(lar) :

Yuan Hong-Chang

Yıl :

1992

Yuan Hong-Chang

Piri Tam Metin Bulucu Özet Ek Bilgiler

Achievements and successes have been obtained in schistosomiasis control in China. An epidemic survey was carried out and its results analyzed.

DOI : 10.1590/S0074-02761992000800037

Anahtar Kelimeler : schistosomiasis, control, Schistosoma japonicum, epidemiology

Cilt: 87
Sayfa: 241 - 241

Sınıflandırma :

Biyotıp %92

Parazitoloji ve Enfeksiyon Hastalıkları %99

10

1-48-04 Drug choice of oral medication in carpal tunnel syndrome

Dergi Makalesi

Kaynak :

Science Direct

Dergi:

Journal of the Neurological Sciences

Yayıncı:

Elsevier

Yazar(lar) :

Ming-Hong Chang

Yıl :

1997

Ming-Hong Chang

Ek Bilgiler

DOI : 10.1016/s0022-510x(97)85154-4

ISSN: 0022-510X
Cilt: 150
Sayfa: S64

Sınıflandırma :

Biyotıp %58

İnsan Genetiği %54

Görüntüleme ve Radyoloji %23

Tıp ve Halk Sağlığı %41

Romatoloji %98

11

A waveform oriented electric machine testing system aided by personal computer

Dergi Makalesi

Kaynak :

Science Direct

Dergi:

Electric Power Systems Research

Yayıncı:

Elsevier

Yazar(lar) :

Cheng-Hong Chang

Yıl :

1995

Cheng-Hong Chang

Ek Bilgiler

DOI : 10.1016/0378-7796(94)00910-v

ISSN: 0378-7796
Sayı: 2
Cilt: 32
Sayfa: 153-159

Sınıflandırma :

Enerji %84

Ekonomi ve Yönetim %29

Enerji Verimliliği %27

Enerji Toplanması %20

12

Premotor symptoms as predictors of outcome in Parkinson's Disease: A nationwide population-based and case-control study

Dergi Makalesi

Kaynak :

Science Direct

Dergi:

Parkinsonism & Related Disorders

Yayıncı:

Elsevier

Yazar(lar) :

Ming-Hong Chang

Yıl :

2016

Ming-Hong Chang

Ek Bilgiler

DOI : 10.1016/j.parkreldis.2015.10.052

ISSN: 1353-8020
Cilt: 22
Sayfa: e37

13

The possible climate impact on the collapse of an ancient urban city in Mu Us Desert, China

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Regional Environmental Change

Yayıncı:

Springer Link

Yazar(lar) :

Jianxin Cui , Hong Chang

Konu :

Climate Change, Climate Change, Oceanography, Geography, Regional, Nature Conservation

Yıl :

2012

Hong Chang

Özet Ek Bilgiler

Tongwan City is one of the most famous and best-researched archaeological sites in China. By using palaeoclimatology proxy records from China over the last 2,000 years and archaeological/historical documents, we analyse the possible effect of climate on the collapse of Tongwan City, an ancient urban city of the Daxia state (AD 407–427). During Tongwan City’s existence (AD 413–994), two severe cold and drought stages were recorded by both natural proxy data and the synthesis compiled from the historical documents. The first cold and drought stage occurred at about AD 420–550, with the lowest point centred at about AD 500. The second cold and drought stage occurred at about AD 780–950. These periods correspond to the times of climate deterioration, especially weak summer monsoons, which eventually resulted in the intensive desertification and collapse of Tongwan City.

DOI : 10.1007/s10113-012-0345-y

Anahtar Kelimeler : Tongwan City, Climate impact, Mu Us desert, Historical documents, Proxy records, Archaeological site

ISSN: 1436-378X
Cilt: 13
Sayı: 2
Sayfa: 353-364

Sınıflandırma :

Coğrafya %99

Dünya Bölgesel Coğrafyası %87

14

Research on Anti PUE Attack Based on CAF Spectrum and Repeated-Game

e-Kitap

Kaynak :

Springer Link

Dergi:

Communications and Networking

Yayıncı:

Springer Link

Yazar(lar) :

Hong Chang , Yong Li

Yıl :

2017

Hong Chang

Özet Ek Bilgiler

Bilgisayar Sistemleri Organizasyonu ve İletişim Ağları %69

High imitation of primary user (PU) signal, primary user emulation (PUE) signal is difficulty for discrimination. First, a method based on cross ambiguity function (CAF) is proposed for determining PUE signal. For PUE signal different from PU signal in spatial but same in frequency in one sensing slot, the algorithm with two dimension search is reduced to one dimension search, having no inter-modulation signal influence. Moreover, for defending PUE attack (PUEA), a repeated game between malicious user (MU) and secondary user (SU) is formulated. By introducing credit discipline mechanism, the optimal strategies for both players are investigated. The stability of the strategies is analyzed with replicated dynamic equation, which indicates that the strategies are the final choice no matter what initial strategies they choose. Simulation results demonstrate that the method is effective for discriminating and defending PUEA in terms of lower computation, higher detection probability and greater payoff.

DOI : 10.1007/978-3-319-78139-6_45

Anahtar Kelimeler : PUE attack, Cross ambiguity function, Repeated game, Credit discipline mechanism, Replicated dynamic equation

ISBN: 978-3-319-78139-6
Sayfa: 450-462

Sınıflandırma :

İş ve Yönetim %34

Sayısal Zeka %53

İş Dünyasında BT %20

Bilgisayar Bilimi %30

Mühendislik %29

Mühendislik Termodinamiği %90

15

Flexural Behaviour of Unbonded Posttensioned Concrete Beam Strengthened with Aluminium Alloy Plates

Dergi Makalesi

Kaynak :

Directory of Open Access Journals (DOAJ)

Dergi:

Mathematical Problems in Engineering

Yazar(lar) :

Hong Chang , Wei Zhou

Yıl :

2020

Hong Chang

Piri Tam Metin Bulucu Özet Ek Bilgiler

Owing to their high corrosion resistance, aluminium alloy (AA) plates bonded with magnesium phosphate cement (MPC) are considered as a viable candidate for reinforcing inshore infrastructures that are subject to severe environmental conditions and vapor atmospheres. Therefore, the aim of this study is the evaluation of the flexural behaviour of simple beams that are strengthened using this technique. Six unbonded posttensioned concrete (UPC) beams with different reinforcement ratios are damaged by static loads and then repaired and strengthened using AA plates. The failures under two-point loading are then investigated. Thereafter, a simplified method is proposed for the evaluation of the flexural strength of a UPC beam strengthened by an AA plate with MPC. The flexural strengths of the six specimens increase by an average of 14%, and the displacement ductility factor decreases by an average of 34.14%. Moreover, the increase and decrease ratios are proportional and inversely proportional to the comprehensive reinforcement index, respectively. The influences of the three main factors on the flexural strength of the AA plate are determined: the increase in the stress of the unbonded tendons, stress at the midspan and slippage at the ends of the AA plate, and increase ratio of the flexural strength. It shows that the AA plates bonded with MPC can be used successfully in concrete strengthening.

DOI : 10.1155/2020/6535609

Cilt: 2020

Sınıflandırma :

Mühendislik %83

Bina İnşaatı ve Tasarımı %53

Yapı Malzemeleri %38

16

Magnetic and transport properties of electron-doped Ca3−x Bi x Mn2O7

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Applied Physics A

Yayıncı:

Springer Science and Business Media LLC

Yazar(lar) :

Hong Chang , Qiang Wu

Yıl :

2013

Hong Chang

Ek Bilgiler

DOI : 10.1007/s00339-013-7991-x

ISSN: 0947-8396
Sayı: 4
Cilt: 115
Sayfa: 1323-1327

17

網路虛擬實境與情境學習的整合應用 Application of Internet Virtual Reality and Situated Learning

Dergi Makalesi

Kaynak :

Directory of Open Access Journals (DOAJ)

Dergi:

Journal of Educational Media & Library Sciences

Yazar(lar) :

Chaoyun Liang , Hong Chang

Yıl :

1998

Hong Chang

Özet Ek Bilgiler

無 This article introduces an ongoing project that integrates Internet virtual reality techniques with situated learning theory, and tries to find out the synthesized application. Based upon the synthesis, the authors develop a set of learning materials that can provide an environment for multiple-user participation and real-time interaction on Internet. A detailed description of the instructional design process is offered, followed by the suggestions for future research in this promising area.

Anahtar Kelimeler : Internet, Virtual reality, Internet virtual reality, Situated learning material development

ISSN: 1013-090X
Cilt: 36
Sayı: 2
Sayfa: 197 - 224

18

Semi-supervised distance metric learning

Tez

Kaynak :

NDTLD Thesis

Dergi:

Global ETD Search

Yayıncı:

Global ETD Search

Yazar(lar) :

Hong. Chang

Yıl :

2006

Hong. Chang

Özet Ek Bilgiler

Thesis (Ph.D.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 120-137). Also available in electronic version.

Sınıflandırma :

Eğitim %36

Bilgisayarlar ve Eğitim %88

19

GW26-e4771 Protective and antiapoptotic effects of luteolin on oxidative injury in H9C2 cardiomyocytes

Dergi Makalesi

Kaynak :

Science Direct

Dergi:

Journal of the American College of Cardiology

Yayıncı:

Elsevier

Yazar(lar) :

Hong Chang , Wei Wang

Yıl :

2015

Hong Chang

Ek Bilgiler

DOI : 10.1016/j.jacc.2015.06.1262

ISSN: 0735-1097
Sayı: 16
Cilt: 66
Sayfa: C62-C63

Sınıflandırma :

Biyotıp %100

Farmakoloji ve Toksikoloji %73

Kardiyovasküler Biyoloji %24

20

Effects of Formulat Bushenzhuanggu on the biochemical markers of bone metabolism and the bone mineral density in ovariectomized rats

Dergi Makalesi

Kaynak :

Science Direct

Yazar(lar) :

Yan Liu , Hong Chang

Yıl :

2010

Hong Chang

Ek Bilgiler

DOI : 10.1016/j.bone.2010.09.215

ISSN: 8756-3282
Cilt: 47
Sayfa: S413

Sınıflandırma :

Tıp ve Halk Sağlığı %45

Üreme Tıbbı %58

Endokrinoloji %25

Biyotıp %40

Metabolik Hastalıklar %100

21

Constructing gene network of the 51 genes related to Yeast (Saccharomyces cerevisiae) DNA repair and DNA recombination from microarray data

Tez

Kaynak :

Dissertation.com

Yazar(lar) :

Hong-Chang Wang

Yıl :

2003

Hong-Chang Wang

Özet Ek Bilgiler

Fifty one yeast genes related to DNA repair and DNA recombination from microarray expression data were analyzed to construct the gene network. In this study, we consider the microarray data sets from two independent synchronized methods: Alpha factor and cdc28. Hierarchical clustering algorithm and K-means are applied to cluster the 51 genes. The clustering pictures of the 51 genes, we show that Hierarchical clustering out performs the k-means. Multiple lag correlations are need as the criterion to construct the gene networks of these 51 genes, among which 16 genes are extrapolated. The gene networks of the 16 genes is useful to find out activator or repressor genes. In addition, the 16 genes are clustered into the same subcluster by Hierarchical clustering method. The results of our studies provide a useful economic and time saving experiment procedure.

Tez türü: Master

Sınıflandırma :

Yaşam Bilimleri %99

Mikro Diziler %61

Mikrobiyal Genetik ve Genomik %30

22

Quasi-maximum likelihood estimators in generalized linear models with autoregressive processes

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Acta Mathematica Sinica, English Series

Yayıncı:

Springer Link

Yazar(lar) :

Hong Chang Hu , Lei Song

Konu :

Mathematics

Yıl :

2014

Hong Chang Hu

Özet Ek Bilgiler

The paper studies a generalized linear model (GLM)

$y_t = h(x_t^T \beta ) + \varepsilon _t ,t = 1,2,...,n,$
where

$\varepsilon _1 = \eta _1 ,\varepsilon _t = \rho \varepsilon _{t - 1} + \eta _t ,t = 2,3,...,n,$

h is a continuous differentiable function, ηt’s are independent and identically distributed random errors with zero mean and finite variance σ
2. Firstly, the quasi-maximum likelihood (QML) estimators of β, ρ and σ
2 are given. Secondly, under mild conditions, the asymptotic properties (including the existence, weak consistency and asymptotic distribution) of the QML estimators are investigated. Lastly, the validity of method is illuminated by a simulation example.

DOI : 10.1007/s10114-014-1410-x

Anahtar Kelimeler : Generalized linear model, quasi-maximum likelihood estimator, autoregressive processes, weak consistency, asymptotic distribution, 62J12, 62F12, 62M10

ISSN: 1439-7617
Cilt: 30
Sayı: 12
Sayfa: 2085-2102

Sınıflandırma :

İstatistik %100

İstatistik %98

23

Secure Licensing of IP Cores on SRAM-Based FPGAs

Kitap Bölümü

Kaynak :

Springer Link

Dergi:

Secure System Design and Trustable Computing

Yayıncı:

Springer International Publishing

Yazar(lar) :

Li Zhang , Chip-Hong Chang

Yıl :

2016

Chip-Hong Chang

Ek Bilgiler

DOI : 10.1007/978-3-319-14971-4_12

Sayfa: 391-418

24

Efficient differential code bias and ionosphere modeling and their impact on the network-based GPS positioning

Tez

Kaynak :

OhioLINK

Dergi:

The Ohio State University

Yayıncı:

The Ohio State University

Yazar(lar) :

Hong Chang-Ki

Konu :

Geodesy

Yıl :

2007

Hong Chang-Ki

Özet Ek Bilgiler

One of the major error sources in using Global Positioning System (GPS) measurements for modeling the ionosphere is the receiver differential code bias (DCB). Therefore, the determination of the receiver DCB is important, and to date, it has been done mostly using the single-layer ionospheric model assumption. In this dissertation, a new and efficient algorithm using the geometry conditions between the satellite and the tracking receivers is proposed to determine the receiver DCB using permanent reference stations. In this method, an assumption that ionosphere is represented by a single-layer model is not required, which makes DCB computation independent on the pre-selected ionosphere model. In addition, this method is simple, accurate and computationally efficient. The principal idea is that the magnitude of the signal delay caused by the ionosphere is, under normal conditions, highly dependent on the geometric range between the satellite and the receiver. The proposed algorithm was tested with the Ohio Continuously Operating Reference Stations (CORS) and the Transantarctic Mountains Deformation (TAMDEF) sub-network data. The results show that quality comparable to the traditional DCB estimation method is obtainable with greater computational efficiency and simple algorithmic implementation.

Anahtar Kelimeler : GPS, GPS remote sensing, GPS positioning, ionosphere modeling

Tez Türü: PhD thesis
Sayfa: 0 - 221

Sınıflandırma :

Yer Bilimleri %95

Jeofizik ve Çevre Fiziği %95

25

On the approximate frequentist validity of the posterior quantiles of a parametric function: results based on empirical and related likelihoods

Dergi Makalesi

Kaynak :

Springer Link

Yazar(lar) :

In Hong Chang , Rahul Mukerjee

Konu :

tatistics, Statistical Theory and Methods, Statistics for Business

Yıl :

2011

In Hong Chang

Özet Ek Bilgiler

With reference to a wide class of empirical and related likelihoods, we study priors which ensure approximate frequentist validity of the posterior quantiles of a general parametric function. It is seen that no data-free prior entails such frequentist validity but, at least for the usual empirical likelihood, a data-dependent prior serves the purpose. Accounting for the nonlinearity of the parametric function of interest requires special attention in the derivation. A simulation study is seen to provide support, in finite samples, to our asymptotic results.

DOI : 10.1007/s11749-011-0240-8

Anahtar Kelimeler : Approximate characteristic function, Data-dependent prior, Edgeworth expansion, Higher-order asymptotics, Invariance, Nonlinearity, Probability matching prior, 62F15

ISSN: 1863-8260
Cilt: 21
Sayı: 1
Sayfa: 156-169

Sınıflandırma :

İstatistik %100

İstatistik %40

İstatistik ve Hesaplama %20

26

Double-Base Number System and Its Application in FIR Filter Design

e-Kitap

Kaynak :

Springer Link

Dergi:

Embedded Systems Design with Special Arithmetic and Number Systems

Yayıncı:

Springer Link

Yazar(lar) :

Jiajia Chen , Chip-Hong Chang

Yıl :

2017

Chip-Hong Chang

Özet Ek Bilgiler

The electronic industry has witnessed a phenomenal growth over the last two decades, mainly due to the rapid advancement of very-large-scale integration technology. The number of integrated circuits has been rising at a very fast pace in high-performance computing, telecommunications, and consumer electronics, thanks to the proliferation of application-specific digital signal processors (DSPs). Among many different categories of DSPs, digital filter is a major function which is instrumental to successful signal separation, extraction, and restoration. This chapter presents a paradigm of programmable FIR filter design by exploiting the sparsity of double-base number system (DBNS). Due to its innate abstraction of binary shifted partial products, the sharing of adders in the time-multiplexed multiple constant multiplication block of programmable FIR filters can be maximized by a direct mapping from the canonical DBNS or the quasi-minimum extended DBNS (EDBNS) expression. The multiplexing cost can be further reduced by merging the double-base terms. This reconfigurable design can achieve significant silicon area saving by temporal resource sharing, albeit inevitable compromise in delay to adapt a fixed digital filter to multiple frequency responses. The technique is applicable to other numerical computation problems that involve the multiplication of an input signal with a predetermined set of programmable constants where the delay penalty is not a major concern. For this reason, some noteworthy features and statistics of DBNS and EDBNS will be highlighted to facilitate the development of new design methodologies that are more efficient and cost-effective for the design of FIR filters or similar functions.

DOI : 10.1007/978-3-319-49742-6_11

Anahtar Kelimeler : Double-base number system, Extended double-base number system, Canonical signed digit, Minimum signed digit, FIR filter, Programmable filters, Multiple constant multiplications, Shift-and-add network

ISBN: 978-3-319-49742-6
Sayfa: 277-310

Sınıflandırma :

Mühendislik %89

Devreler ve Sistemler %60

Bilgisayar Donanımı %40

27

Synthesis and Structural Characterization of the Sodium Salt of a New Sulfonate-containing Water Soluble N-Donor LigandÃ¢ÂŽÂ¯ Self-assembly in the Solid State by ÃÂ€Ã¢ÂˆÂ’ÃÂ€ Stacking Interactions

Dergi Makalesi

Kaynak :

Directory of Open Access Journals (DOAJ)

Dergi:

Molecules

Yazar(lar) :

Hong-Chang Liang , Yonglian Zhang

Yıl :

2006

Hong-Chang Liang

Piri Tam Metin Bulucu Özet Ek Bilgiler

The synthesis, spectroscopic characterization, and X-ray crystal structure ofthe sodium salt of a new sulfonated water-soluble ligand, sodium 2-(2-pyridin-2-yl-ethylamino)-benzenesulfonate (L) are described. Compound L crystallizes in thecentrosymmetric space group Pbcn, orthorhombic, a=31.930(13) ÃƒÂ¥, b=7.153(3) ÃƒÂ¥,c=14.193(6) ÃƒÂ¥, ÃŽÂ±=90.00, ÃŽÂ²=90.00, ÃŽÂ³=90.00, V=3220(2) ÃƒÂ¥3, Z=9. ÃÂ€Ã¢ÂˆÂ’ÃÂ€ stacking contactsinvolving interactions between the ÃÂ€-donor benzene and the ÃÂ€-acceptor pyridine systemsreinforce and direct the self-assembly of the structural motifs in the solid state.

DOI : 10.3390/11020163

Anahtar Kelimeler : Sulfonate, Water-soluble Ligand, Ãu008FÂu20ACÃ¢ÂˆÂu2019Ãu008FÂu20AC Stacking, Michael-type Addition.

ISSN: 1420-3049
Cilt: 11
Sayı: 2
Sayfa: 163 - 168

Sınıflandırma :

Kimya %100

Organometalik Kimya %100

28

Constitutive model of disturbed soil-structure interface within mining subsidence areas

Dergi Makalesi

Kaynak :

Springer Link

Dergi:

Journal of Central South University

Yayıncı:

Springer Link

Yazar(lar) :

Hong Chang , Jun-wu Xia

Konu :

Engineering, Metallic Materials

Yıl :

2017

Hong Chang

Özet Ek Bilgiler