Volume 39 (2024-2025)
Volume 38 (2023-2024)
Volume 37 (2022-2023)
Volume 36 (2021-2022)
Volume 35 (2020-2021)
Volume 34 (2019-2020)
Volume 33 (2018-2019)
Volume 32 (2017-2018)
Volume 31 (2016-2017)
Volume 30 (2015-2016)
Volume 29 (2014-2015)
Volume 28 (2013-2014)
Volume 27 (2012-2013)
Volume 26 (2011-2012)
Volume 25 (2010-2011)
Volume 24 (2009-2010)
Volume 23 (2008-2009)
Volume 22 (2007-2008)
Volume 21 (2006-2007)
Volume 20 (2005-2006)
Volume 19 (2004-2005)
Volume 18 (2003-2004)
Volume 17 (2002-2003)
Volume 16 (2002-2003)
Volume 15 (2001-2002)
Volume 14 (2001-2002)
Volume 13 (2001)
Volume 12 (2000-2001)
Volume 11 (2000-2001)
Volume 10 (2000-2001)
Volume 9 (2000)
Volume 8 (1999)
Volume 7 (1999)
Volume 6 (1998)
Volume 5 (1998)
Volume 4 (1997)
Volume 3 (1997)
Volume 2 (1996)
Volume 1 (1995)
Physics and Mechanical Wood
Evaluation of the local dynamic modulus of elasticity in wooden tie by the stress wave method

Ebrahim Khosravi; Amir Lashgari; Mehran Roohnia; Ahmad Jahan latibari; Ajang Tajdini

Volume 39, Issue 2 , June 2024, , Pages 133-145

https://doi.org/10.22092/ijwpr.2023.361802.1751

Abstract
  Background and objectives: From the limitations of detecting the amount of useful life remaining in the components of the structures in the conditions of use with acoustic methods is the impossibility of calculating the modulus of elasticity due to the impossibility of removing the part from the structure. ...  Read More

Chemical conversion
Effect of fermentation pretreatment and extraction on the acoustic properties of Ash wood (Fraxinus excelsior)

Zahra Daeepour; amir lashgari; Mehran Roohnia; Ahmad Jahan latibari; Vahid Safdari

Volume 39, Issue 1 , March 2024, , Pages 27-40

https://doi.org/10.22092/ijwpr.2023.361567.1750

Abstract
  Background and objectives: Nowadays, the importance of treatments such as water washing and ethanol-acetone washing to improve the acoustic properties of wood has been noticed by the makers of musical instruments. Wood extractives are in the list of those materials that often do not have a construction ...  Read More

Chemistry of wood
Identification of Walnut Tree Leaves Extractives Chemical Composition and the Effect of Growth Time

Mohammad Reza Sabzehparvar; Ahmad Jahan latibari; Shademan Pourmousa

Volume 39, Issue 1 , March 2024, , Pages 72-83

https://doi.org/10.22092/ijwpr.2023.360898.1742

Abstract
   Background and Objectives: Plant extractives show unique properties. They impart colors and change the color of wood and generates attractive appearance. Since early days, societies have been utilizing plant extractives in industrial, medical and even as fungicides and biocides. In early times ...  Read More

Chemical conversion
Adhesive Modification and Improvement of Properties of Polyvinyl Acetate Using Nano silica

mohammad najafianashrafi; Payam Moradpour; Ahmad Jahan latibari; Hamidreza Edalat

Volume 38, Issue 2 , June 2023, , Pages 128-140

https://doi.org/10.22092/ijwpr.2023.361007.1743

Abstract
  Poly vinyl acetate (PVAC) adhesive is one of the most important adhesives in wood and furniture industry, which has many advantages such as low cost, environment friendliness and non-toxicity. However, it has some disadvantages such as low water resistance and poor boning strength. In this study, the ...  Read More

Management and Economics wood
Identifying and prioritizing the components of sustainable production in the corrugated box making industry

Sina Mohamadi Nematabad; Shademan Pourmousa; Ajang Tajdini; Ahmad Jahan latibari; Amir Lashgari

Volume 38, Issue 1 , March 2023, , Pages 21-36

https://doi.org/10.22092/ijwpr.2021.356457.1699

Abstract
  The applied purpose of this study is to determine and prioritize the components of production sustainability in the courrugated box making industry by using qualitative analysis.Through library studies and review of available resources, seven main components affecting the sustainability of production ...  Read More

Assessment of Customer Expectations and Preferences in Home and Office Furniture Purchase Process with Non-parametric Tests

Elham Gudarzi; Ajang Tajdini; Shademan Pourmousa; Ahmad Jahan latibari; Mehran Roohnia

Volume 37, Issue 1 , April 2022, , Pages 1-16

https://doi.org/10.22092/ijwpr.2021.354697.1682

Abstract
  This study aims to identify the expectations and preferences of consumers of home and office furniture using nonparametric tests. The statistical population consists of customers of the home and office wood furniture industry in Tehran and a stratified sampling method was used in this study. Cochran ...  Read More

Application of Delfi Method in Identification of Influential Factors on Risk Management Model for Wooden Structures

Bahram Mardani; Ahmad Jahan latibari; Ajang Tajdini

Volume 36, Issue 3 , August 2021, , Pages 194-204

https://doi.org/10.22092/ijwpr.2021.354225.1676

Abstract
  Natural disasters and the need to facilitate and relief the consequences of such disasters has initiated global crisis in its respective management. Reducing the variabilities of inhabitants requires the integrated system to battle against such devastations and crises. This research presents the application ...  Read More

Physics and anatomy
Effect of fiber length on mechanical properties of wood composite plastic (Polypropylene)

Farshid Basiji; Vahid reza Safdari; Ahmad Jahan latibari; Amir Nourbakhsh

Volume 25, Issue 2 , September 2018, , Pages 187-200

https://doi.org/10.22092/ijwpr.2010.117282

Abstract
  The objective of adding reinforcing fillers, such as natural fibers to plastics is to increase the strength compared with neat plastic and wood. In this research the effect of wood pulp fiber length (short, medium and long), aspect ratio and fiber content (27%, 37%, 47% and 0% (non-reinforced PP)) with ...  Read More

Pulp and paper
The influence of pre-hydrolysis on the delignification of Hornbeam wood

Abdolrahim Mohebalian; Ahmad Jahan latibari; Ajang Tajdini; Shadman Pourmosa

Volume 33, Issue 3 , September 2018, , Pages 359-369

https://doi.org/10.22092/ijwpr.2018.120886.1465

Abstract
  In this research, the influence of two temperatures (60 and 90°C) and three dosages of sodium hydroxide (5, 7.5 and 10%, based on the dry weight) on hornbeam wood chips alkaline pre-hydrolysis and soda pulping was studied. Soda pulping of both pre-hydrolyzed and control chips were conducted applying ...  Read More

Management and Economics wood
Investigation on the influence of nutrients and treatment period on enzyme activities of Phanerochaete chrysosporium

Meraj Sharari; Ahmad Jahan latibari; Gholamreza Rafiei; Ahmad Mirshokraei

Volume 25, Issue 2 , September 2018, , Pages 275-290

https://doi.org/10.22092/ijwpr.2010.117314

Abstract
  In the course of enhanced bioremediation, addition of nutrients such as carbon, nitrogen, phosphorous, etc, substrates, electron acceptors as well as vitamins (Thiamin, etc) and veratryl alcohol, increased metabolic activities, will influence the production of enzymes and enhances the deterioration of ...  Read More

Physics and Mechanical Wood
Development of Tomographic Technology (Case Study: Trees from Karaj City)

Mehran Roohnia; Ahmad Jahanlatibari; Behzad Behnam; Jamshid Zarrinmehr; Mostafa Kohantorabi; Negin Manouchehri; Ajang Tajdini

Volume 33, Issue 1 , April 2018, , Pages 100-111

https://doi.org/10.22092/ijwpr.2017.115825.1441

Abstract
  Reaching to the technology of acoustical Tomography and imaging, this project was ordered for facilitating the work for green space researchers and managers in urban standing trees. Comparing the sensors and micro-second timers with those of a certified European device in radial to tangential and longitudinal ...  Read More

Composite wood products
The influence of compounding process on the properties of polypropylene-cellulosic fiber nanocomposite containing nanoclay particles.

Sina Khodaparast; Ahmad Jahan - Latibari; Mehran Rohnia

Volume 32, Issue 2 , July 2017, , Pages 287-299

https://doi.org/10.22092/ijwpr.2017.109585

Abstract
  The effect of compounding process applying two methods of one and two step mixing on the properties of nanocomposite is investigated. Nanocomposites were produced using polypropylene, cellulosic fibers, MAPP and nanolay as reinforcement. 1.5 and 3% MAPP and 0,2, and 4% nanoclay were used as the variable ...  Read More

Composite wood products
Evaluation of Mechanical Properties of Old Corrugated Container Fibers – Polypropylene Composites Reinforced with Carbon Nanotubes (CNT)

Ahmad Jahan- Latibari; Roozbeh Abidnejad; Mehran Roohnia

Volume 32, Issue 1 , April 2017, , Pages 47-56

https://doi.org/10.22092/ijwpr.2017.107064

Abstract
  At this research, the influence of Multi Walled Carbon Nano Tubes (Non-functionalized and functionalized) on mechanical properties of polypropylene – old corrugated container (OCC) fibers composites was investigated. OCC fibers polypropylene composites were prepared using 20% OCC fibers, 80% polypropylene ...  Read More

Investigation on the effect of cellulose fiber surface characteristics on mechanical properties of cellulose fiber /polypropylene composite

shahram Badamchi; Ahmad Jahan latibari; Mehran Rohnia; Seid Javad Sepideh dam

Volume 30, Summer 2 , August 2015, , Pages 183-193

https://doi.org/10.22092/ijwpr.2015.12928

Abstract
  In this research the effect of softwood cellulose fibers surface characteristics on mechanical properties of cellulose fibers / polypropylene composite (W.P.C) was studied. The fibers were refined to modify the surface characteristics and reach four different freeness levels (11, 14, 17 and 21 °SR). ...  Read More

Pulp and paper
Comparative Investigation on the properties of Soda and Soda-Ethanol pulps from three hardwoods

Hosein Valayi; Ahmad Jahan Latibari

Volume 30, Fall 3 , August 2015, , Pages 399-407

https://doi.org/10.22092/ijwpr.2015.12993

Abstract
  Strength properties and the yield of soda and soda-ethanol pulps produced using hornbeam, beech and poplar woods were investigated. Soda pulps were produced applying 20% active alkali and the soda-ethanol pulps were made using 10% active alkali and 50% ethanol. The pulping temperature was constant at ...  Read More

Management and Economics wood
Identification and comparison of oil compounds derived from pyrolysis of sound wood and decayed wood of beech by using Gas Chromatography and Mass Spectrometry (GC/MS)

Saeed Hasani; Seid Khalil Hosseini Hashemi; Ramin Farsi; Ahmad Jahan Latibari

Volume 30, Summer 2 , August 2015, , Pages 243-255

https://doi.org/10.22092/ijwpr.2015.12995

Abstract
  AbstractAmong the forest diseases, fungi are the most important factors that cause irreparable losses to the wood in standing trees and logs. Fungi are the cause of contamination and decay of trees and timbers in forest or in the stock of factories. Decayed woods are one of the biomass resources and ...  Read More

Comparing the Performance of the Combination of Surfactant and Soap in Wastepaper Deinking

Ahmad Jahan latibari; Reza Jamail; Mehran Roohnia

Volume 30, SPRING 1 , May 2015, , Pages 26-36

https://doi.org/10.22092/ijwpr.2015.11902

Abstract
  The influence of different dosages of surfactant and soap in the deinking of wastepaper is investigated. The results showed that the dosage of 0.25% soap generated highest brightness and lowest opacity. However, the dosage of 0.75% soap produced highest tensile and burst strength and 0.5% soap produced ...  Read More

Effect of Nano TiO2 on Properties of Old Corrugated Paper Recycling Waste Water

Sohil Amiri; Ahmad Jahan latibari; Seid Javad Sepidehdam

Volume 29, WINTER 4 , February 2015, , Pages 526-237

https://doi.org/10.22092/ijwpr.2014.8457

Abstract
  Old corrugated container (OCC) recycling generates large volume of effluent which is heavily loaded with pollutants. Its treatment is very difficult and complicated due to the presence of various pollutants and certain chemical with complicated structure. In this study, the treatment of OCC recycling ...  Read More

Physics and Mechanical Wood
Shear and elastic moduli of Poplar wood affected by glue coverage deficiency of lamination in a vibration based nondestructive approach

Ehsan Haji rafiriha; Mehran Roohnia; Ahmad Jahan latibari; Ajang Tajidini

Volume 29, WINTER 4 , February 2015, , Pages 550-560

https://doi.org/10.22092/ijwpr.2014.8458

Abstract
  The effect of lamination and adhesive coverage rate in layered products made from Poplar wood was studied The effect of lamination and adhesive coverage rate in layered products made from Poplar wood was studied by non-destructive free vibration test. 120 samples with nominal dimensions of 2.5×2.5×45 ...  Read More

Investigating the effect of canola particles on acoustic properties of particleboard

Hanieh Ghasemi; Ahmad Jahan latibary; Mehran Rohnya; Mostafa Kohan torabi

Volume 29, Fall 3 , November 2014, , Pages 399-410

https://doi.org/10.22092/ijwpr.2014.6248

Abstract
  The effect of the application of different contents of canola particles in the production of particleboard on its acoustic properties were determined using free vibration on free-free bars procedure. 33 samples from each combination of canola and wood particles were prepared and the acoustical properties ...  Read More

The influence of beech wood drying condition on its pH, buffering capacity and UF bond strength

Amir Zamani; Ahmad Jahan Latibari; Aghang Tajdini; Abolfazl Kargarfard

Volume 29, Summer 2 , August 2014, , Pages 275-286

https://doi.org/10.22092/ijwpr.2014.5690

Abstract
  In this investigation, the surface chemical properties of the beech wood layers were characterized and the impact of drying condition on the strength of the bond was examined. Defect free beech logs were harvested and then the layers were prepared. The moisture content of the specimens were adjusted ...  Read More

The influence of fiber lignin content on mechanical properties of wood fiber-polypropylene composites

Porya Rezaei niaraki; Ahmad Jahan Latibari; Azhang Tajadini; Mehran Roohnia

Volume 29, SPRING 1 , May 2014, , Pages 1-11

https://doi.org/10.22092/ijwpr.2014.4914

Abstract
  The influence of fiber lignin content and the dosage of coupling agent on the strength and physical properties of cellulosic fiber-polypropylene composite were investigated. The old corrugated container (OCC) fibers were delignified using sodium hydroxide to reach the lignin content of 2.7, 3.78, 5.26 ...  Read More

Study of the effective indices on imports of Wooden furniture in Iran

Azhang Tajdini; Amir hossein Taghadosi; Shadman Pourmousa; Ahmad Jahan-Latibari; Vahid reza Safdari

Volume 28, Summer 2 , June 2013, , Pages 205-223

https://doi.org/10.22092/ijwpr.2013.2776

Abstract
  Abstract: In the recent years due to the innovations taking place in the production, packaging and shipping of furniture, world trade of these products has grown substantially. This issue along with some outstanding problems in manufacturing and marketing various kinds of wooden has caused that furniture ...  Read More

The Influence of Nanoclay on the Performance of HDPE/ Wheat Straw Powder Composite Produced by Two Stage Mixing Process

Sina Modirrahmati; Ahmad Jahan-Latibari; Mansor Minaei

Volume 27, WINTER 4 , December 2012, , Pages 635-645

https://doi.org/10.22092/ijwpr.2012.109622

Abstract
  The influence of nanoclay addition on the strength properties of HDPE/ Wheat straw powder Composite was investigated. Composites compounds were produced using 73%HDPE, 25% wheat straw powder and 2% MAPE and three amounts of nanoclay (1, 2, and 3% of composite compound). First, HDPE and nanoclay was melt- ...  Read More

Investigation on the impact of multi wall carbon nano tubes (MWCNT) addition on the mechanical properties, water absorption and thickness swelling of polypropylene/old corrugated container fibers composite

Alireza Asgari; Ahmad Jahan latibari; Seiad Javad Sepidedam

Volume 27, Issue 3 , September 2012, , Pages 522-535

https://doi.org/10.22092/ijwpr.2012.116213

Abstract
  The impact of Multi Wall Carbon Nano Tubes addition on mechanical properties, water absorption and thickness swelling of polypropylene/old corrugated container (OCC) fiber composites was investigated. Polypropylene/ OCC fiber composite was prepared using 30% OCC fiber, 67% polypropylene and 3% MAPP. ...  Read More