نتایج جستجو برای: tree

تعداد نتایج: 170609  

Journal: :PVLDB 2014
Manos Athanassoulis Anastasia Ailamaki

The increasing volume of time-based generated data and the shift in storage technologies suggest that we might need to reconsider indexing. Several workloads like social and service monitoring often include attributes with implicit clustering because of their time-dependent nature. In addition, solid state disks (SSD) (using flash or other low-level technologies) emerge as viable competitors of...

Journal: :iranian journal of allergy, asthma and immunology 0
zhen chen shanghai huashan hospital, fudan university, no. 12, urumqi road (m), shanghai 200040 china ning zhu shanghai huashan hospital, fudan university, no. 12, urumqi road (m), shanghai 200040 china xiaodong chen shanghai huashan hospital, fudan university, no. 12, urumqi road (m), shanghai 200040 china yi yang shanghai huashan hospital, fudan university, no. 12, urumqi road (m), shanghai 200040 china yiping li institute of biochemistry and cell biology, shanghai institute of life sciences, chinese academy of sciences, no. 320, yueyang road, shanghai 200031 china zhili wu institute of biochemistry and cell biology, shanghai institute of life sciences, chinese academy of sciences, no. 320, yueyang road, shanghai 200031 china

“broussonetia papyrifera” (chinese mulberry) pollen is an important source of allergens in regions surrounding shanghai, china. to identify and purify major allergens from “b. papyrifera” pollen that reacted with serum antibodies from sensitized patients, “b. papyrifera” pollen was defatted, dried, and extracted proteins were separated using sp cationic exchange or q anionic exchange columns. s...

Journal: :genetics in the 3rd millennium 0
nasrollah pirany milad manafi

the aim of the present study was to find the best or optimum topology of six chicken populations, which were genotyped based on nine highly polymorphic microsatellite markers. to reach this goal, different genetic distances based on infinite allele model (iam), stepwise mutation model (smm) and drawing phylogentic trees on un-weighted pair-group method using arithmetic averages (upgma) method w...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شاهد - دانشکده هنر 1386

چکیده ندارد.

Journal: :transactions on combinatorics 2016
mehdi eliasi ali ghalavand

‎for a graph $g$ with edge set $e(g)$‎, ‎the multiplicative second zagreb index of $g$ is defined as‎ ‎$pi_2(g)=pi_{uvin e(g)}[d_g(u)d_g(v)]$‎, ‎where $d_g(v)$ is the degree of vertex $v$ in $g$‎. ‎in this paper‎, ‎we identify the eighth class of trees‎, ‎with the first through eighth smallest multiplicative second zagreb indeces among all trees of order $ngeq 14$‎.

Journal: :iranian journal of mathematical chemistry 2014
ž. k. vukićević g. popivoda

we give sharp upper bounds on the zagreb indices and lower bounds on the zagreb coindices of chemical trees and characterize the case of equality for each of these topological invariants.

Journal: :journal of ornamental plants 2014
rameshwar groach muzafar hussain dar kartar chand badgal priyanka pal narender singh

koelreuteria elegans, popularly known as “flame gold” is an ornamental tree. in vitro callus induction and regeneration from various explants (eaf segments and cotyledonary leaf) were studied on modified ms medium. the highest callus induction rate (80%) and multiplication was obtained in 2 mg/l 2,4-d from leaf segments. calli transferred in 1.5 mg/l bap resulted in efficient shoot regeneration...

Journal: :Scientific American 1886

Journal: :Bulletin of the London Mathematical Society 2012

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید