Results 61 to 70 of about 150,384 (314)
Advanced Engineering Materials, EarlyView.This article presents an experimental and numerical modal investigation of composite sandwich structures using surfboards as model systems. By comparing different core materials and reinforcement strategies, the study demonstrates how local stiffeners influence vibrational response and introduce characteristic modal features, highlighting modal ...
Brett Connellan +4 more
wiley +1 more source
Growth characteristics of 5 black poplar (Populus nigra) clones with Turkish origin in Karadj area [PDF]
تحقیقات جنگل و صنوبر ایران, 2011 In this study, wood yield of five poplar clones with Turkish origin were investigated in Karadj. Seventy five young trees (one year old seedling) from each clone were planted in a randomized complete block design on March 1996 in Alborz Research Center ...
Ra'tollah Ghasemi +2 more
doaj +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
MOOSE POPULATION DYNAMICS DURING 20 YEARS OF DECLINING HARVEST IN BRITISH COLUMBIA
Alces, 2018 Licenced harvest of moose (Alces alces) in British Columbia, Canada declined by approximately half over the 20-year period from 1996–2015. To better understand changes in moose populations coinciding with this period of declining harvest, we modelled ...
Gerald Kuzyk +10 more
doaj
Preliminary growth of individuals Populus euphratica, gametoclonal and hybrids (P. euphratica with P. alba) at the first 5-years in Dezful botanical garden [PDF]
تحقیقات جنگل و صنوبر ایران, 2010 Poplar trees are appropriate species for plantation and forest rehabilitation because of fast growing and high wood yield, as well as adaptability to unfavorable climate.
Mohammad Hasan Assareh +5 more
doaj
مجلة المختار للعلوم, 2018 Aleppo pine trees have been extensively planted in many areas in Aljabal Al- Akhdar region for ecological and recreational purposes. The objectives of this study were to investigate the age structure and current status of Pinus halepensis.
Attia. A. Alsanousi +1 more
doaj +1 more source
Estimation of acorn production of gall oak (Quercus infectoria Olivier) in Baneh forests using Koenig visual method [PDF]
تحقیقات جنگل و صنوبر ایران, 2011 Study of sexual regeneration of oak species in Zagros forests is very important considering to sever degradation of these forests and decreasing of seed origin oaks.
Mahdi Pourhashemi +2 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein +4 more
wiley +1 more source
Global Ecology and ConservationWe monitored the decline of three oak species, including Quercus brantii, Q. infectoria, and Q. libani, in the Northern Zagros forests of Iran over four years (2019–2022) to identify temporal variation in decline severity and to investigate key ...
Maziar Haidari +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Inspired by natural silicified wood, a biomimetic mineralized chitin‐derived aerogel is constructed. It can withstand 81 000 times its own weight, and its backside temperature is 130.4°C after exposure to ∼1300°C butane flame for 600 s, exhibiting high‐strength, fire‐resistance, and super thermal‐insulation properties.
Kai Xu +11 more
wiley +1 more source