نتایج جستجو برای: lateral resistance

تعداد نتایج: 497635  

Journal: :Journal of experimental botany 2003
Maciej A Zwieniecki Colin M Orians Peter J Melcher N Michele Holbrook

Ions can enhance water flow through the xylem via changes in the hydraulic resistance at border pit membranes. Because flow between adjacent xylem vessels occurs primarily via bordered pit fields, it is hypothesized that xylem sap ion concentrations would affect lateral movement of water more than longitudinal flow. Using tomato as a model system, evidence is presented for ion-mediated changes ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی عمران 1386

رفتار اغلب سازه ها تحت بارگذاری زلزله های بزرگ به صورت غیرخطی است. به عبارت دیگر در بسیاری از اعضاء تنش ها و کرنش ها از حدود الاستیک مصالح تشکیل دهنده اعضا فراتر می روند. در چنین شرایطی، مفصل های پلاستیک باید دارای شکل پذیری مناسبی باشند تا سازه رفتار مطلوب تری را پس از ورود به رژیم پلاستیک تا رسیدن به تغییرمکان نهایی از خود نشان دهد. بدین منظور، روش های بسیاری جهت افزایش ظرفیت شکل پذیری اعضایی...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده مهندسی 1387

چکیده ندارد.

Water flow in open channels is always subject to the resistance to flow and energy dissipation. For design purposes, one of the needed variables is the hydraulic resistance coefficient. For this mean, the influence of cross-sectional shape together with secondary flow cells and lateral distribution of true boundary shear stress have not yet been fully explored. This paper surveys the number of ...

ژورنال: مجله دندانپزشکی 2007
بانوا, سپیده , جلالیان, عزت‌الله , عرفانی, سارا ,

Background and Aim: Considering flexural strength of fiber-reinforced composites (FRC) and also the role of conservative cavities in protecting sound tissue of abutments, the aim of this study was to evaluate the fracture resistance of these bridges by handmade samples in vitro.Materials and Methods: In this experimental in vitro study, 44 sound newly extracted teeth were used to make 22 fixed ...

Journal: :Sports 2023

The purpose of this study was to investigate the lateral force and contribution shoulder horizontal adductor elbow extensor muscles activity during wide- narrow-grip bench press (BP) in various conditions, such as resistance-trained/non-trained, concentric/eccentric, muscle fatigue/non-fatigue. We measured on bar electromyographic (EMG) pectoralis major (PM) triceps brachii (TB) 10 RM BP with w...

2016
Rebecca Saive Aleca M. Borsuk Hal S. Emmer Colton R. Bukowsky John V. Lloyd Sisir Yalamanchili Harry A. Atwater

shadow loss, and the sheet resistance and absorption losses associated with planar layers that facilitate lateral carrier transport to the grid fi ngers. [ 22,23 ] For high effi ciency silicon heterojunction (HIT) solar cells, contact design requires a trade-off between grid fi nger resistance and the sheet resistance and transmission losses of the transparent conducting oxide (TCO)/ amorphous ...

There are various methods for stabilizing excavations in urban areas which one of them is the nailing method. Designing a nailing system and analyzing the performance of excavations is done by various software applications. One of these computer programs is PAXIS software which run based on the finite element method (FEM). In the present study, a numerical analysis of the performance of t...

Journal: :Physical review letters 2008
L M Zhang M M Fogler

We study the charge density distribution, the electric field profile, and the resistance of an electrostatically created lateral p-n junction in graphene. We show that the electric field at the interface of the electron and hole regions is strongly enhanced due to limited screening capacity of Dirac quasiparticles. Accordingly, the junction resistance is lower than estimated in previous literat...

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