نتایج جستجو برای: تجزیه wz

تعداد نتایج: 111385  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه قم - دانشکده علوم پایه 1393

حل دستگاه معادلات خطی، مسئله اساسی جبرخطی است که در بسیاری از مسائل علمی، مهندسی و اقتصادی وجود دارد. در این پایان نامه، شرایط وجود و یکتایی روش تجزیه ی wz مورد بررسی قرار گرفته که تضمین می کند این تجزیه برای ماتریس های اکیداً قطر غالب و معین مثبت بدون هیچ روش محورگیری وجود دارد. چندین روش محورگیری از تجزیه wz ارائه شده و تحلیل خطای محاسباتی در این روش مورد بررسی قرار گرفته است. کاربرد این رو...

Journal: :Agronomy 2021

Phytophthora nicotianae is a devastating oomycete plant pathogen with wide host range. On tobacco, it causes black shank, disease that can result in severe economic losses. Deployment of resistance one the most effective means controlling tobacco but adaptation to complete and partial by P. limit long-term effectiveness resistance. The molecular basis largely unknown. RNAseq was performed on tw...

The textit{QIF}  (Quadrant Interlocking Factorization) method of Evans and Hatzopoulos solves linear equation systems using textit{WZ}  factorization. The  WZ factorization can be faster than the textit{LU} factorization  because,  it performs the simultaneous evaluation of two columns or two rows. Here, we present a  method for computing the real and integer textit{WZ} and  textit{ZW} factoriz...

2009
Jesús Guillera

Observing those WZ-demostrable generalizations of the Ramanujan-type series that were already known, we get the insight to make some assumptions concerning the rational parts of those WZ-pairs that prove them. Based on those assumptions, we develop a new strategy in order to prove Ramanujantype series for 1/π. Using it, we find more WZ-demonstrable generalizations, and so new WZ-proofs, for the...

Journal: :Physical review letters 2015
Luca V Delacrétaz Alberto Nicolis Riccardo Penco Rachel A Rosen

We use the coset construction of low-energy effective actions to systematically derive Wess-Zumino (WZ) terms for fluid and isotropic solid systems in two, three, and four spacetime dimensions. We recover the known WZ term for fluids in two dimensions as well as the very recently found WZ term for fluids in three dimensions. We find two new WZ terms for supersolids that have not previously appe...

Journal: :International journal of pharmaceutics 2010
Xiao Ling Qin Hui Chang Bi Xue Ding Wang Jia Li Li Ying Wang Xin Ping Xue Xiao Chen Chang Xi Wang Le Jia Xu Yi Tao Wang Min Huang

We recently reported that the blood concentrations of Tacrolimus (FK506) in rats were markedly increased following the intake of a Chinese herbal preparation, Wuzhi Tablet (WZ, Schisandra sphenanthera extract). In order to identify the underlying mechanisms of the increase in FK506 level, we investigated the effects of WZ on the absorption and first-pass intestinal and hepatic metabolism of FK5...

Journal: :Nano letters 2015
S Assali L Gagliano D S Oliveira M A Verheijen S R Plissard L F Feiner E P A M Bakkers

The growth of wurtzite/zincblende (WZ and ZB, respectively) superstructures opens new avenues for band structure engineering and holds the promise of digitally controlling the energy spectrum of quantum confined systems. Here, we study growth kinetics of pure and thus defect-free WZ/ZB homostructures in GaP nanowires with the aim to obtain monolayer control of the ZB and WZ segment lengths. We ...

2003
Vladimir A. Fonoberov Alexander A. Balandin

We investigate exciton states theoretically in strained GaN/AlN quantum dots with wurtzite ~WZ! and zinc-blende ~ZB! crystal structures, as well as strained WZ GaN/AlGaN quantum dots. We show that the strain field significantly modifies the conductionand valence-band edges of GaN quantum dots. The piezoelectric field is found to govern excitonic properties of WZ GaN/AlN quantum dots, while it h...

2015
Xiaomei Fan Pan Chen Yiming Jiang Ying Wang Huasen Tan Hang Zeng Yongtao Wang Aijuan Qu Frank J. Gonzalez Min Huang Huichang Bi

Acetaminophen (APAP) hepatotoxicity is the most common cause of drug-induced liver injury and N-acetylcysteine (NAC) is the primary antidote of APAP poisoning. Wuzhi tablet (WZ), the active constituents well identified and quantified, is a preparation of an ethanol extract of Schisandra sphenanthera and exerts a protective effect toward APAP-induced hepatotoxicity in mice. However, the clinical...

2017
Xuezhen Zeng Xi Li Chenshu Xu Fulin Jiang Yufei Mo Xiaomei Fan Yaoting Li Yiming Jiang Dongshun Li Min Huang Huichang Bi

Alcohol abuse leads to alcoholic liver disease and no effective therapy is currently available. Wuzhi Tablet (WZ), a preparation of extract from Schisandra sphenanthera that is a traditional hepato-protective herb, exerted a significant protective effect against acetaminophen-induced liver injury in our recent studies, but whether WZ can alleviate alcohol-induced toxicity remains unclear. This ...

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