The investigation of the relationship between the job satisfaction and job performance of employees in furniture sector

Mobilya endüstrisinde çalışanların el emeği ve performansları ürünlerin kalitesinin oluşmasında büyük öneme sahiptir. Çalışanlardan yüksek performans elde edebilmesi için onların iş doyumunun sağlanması gerekmektedir. Bu araştırmada örgütler için son derece önemli bir yönetsel durum olan iş doyumu veya doyumsuzluğunun işgörenlerin performansı üzerindeki etkisinin belirlenmesi amaçlanmaktadır. Çalışmada, birçok araştırmada kullanılan geçerliliği test edilmiş “Minnesota İş Tatmin Ölçeği” ve “İşgören Performans Ölçeği” kullanılmıştır. Bu doğrultuda, mobilya sektöründe çalışan 362 kişiye anket uygulanmıştır. Elde edilen verilere SPSS programında Bağımsız Örneklem tTesti ve Tek Yönlü Varyans Analizi (ANOVA) testi, Korelasyon ve Regresyon Analizleri uygulanmıştır. Araştırma sonucunda çalışanların iş doyumu ve doyumsuzluğu ile performansları arasında kuvvetli bir ilişki olduğu tespit edilmiştir. Cinsiyet, yaş, eğitim durumu ve kıdem gibi bazı demografik özelliklere göre iş doyumu ve iş performanslarında anlamlı farklılıklar bulunurken, medeni duruma göre önemli bir fark bulunamamıştır.Manpower and performance of employees in furniture industry plays an important role in the quality of the products. It is necessary to ensure the job satisfaction of employees to achieve their high performance. “The Minnesota Job Satisfaction Scale” and “the Job Performance Scale” were used as data collection tools in the study. Therefore, questionnaire form was conducted on 362 employees of furniture sector. Obtained data was analyzed in SPSS program by means of Correlation and Regression Analyses, t-test and ANOVA. The result of the study shows that there is a strong relationship between job satisfaction and employees performance. While there were significant differences in job satisfaction and job performance in term of some employees’ demographic characteristics such as gender, age, educational status and seniority, it wasn’t found significant difference in marital status

Türkiye’deki orman ürünleri ithalatçısı işletmelerin sertifikalı orman ürünlerine ilişkin görüşleri

Bu çalışmada, başta kereste olmak üzere orman ürünleri ithal ederek, bu ürünleri iç ve dış piyasaya pazarlayan özel sektör işletmelerinin, sertifikalı orman ürünlerine ilişkin görüşleri araştırılmıştır. Bu kapsamda, 56 işletmeye yüz yüze görüşme tekniği kullanılarak 15 sorunun yer aldığı anket yapılmıştır. Elde edilen anket verilerinin değerlendirilmesinde, SPSS 20 istatistik paket programından yararlanılmıştır. İstatistiksel analizlerde 0,05 anlamlılık düzeyi ölçüt alınmıştır. Verilerin güvenilirliği Cronbach’s Alpha katsayısı bulunarak belirlenmiştir. Araştırma yöntemleri olarak ise frekans analizi, yüzde analizi, bağımsız örneklem t testi, tek yönlü varyans analizi ve duncan testi kullanılmıştır. Sonuç olarak, işletmenin büyüklüğüne ve ihracat yapması durumuna göre sertifikalı orman ürünlerine ilişkin görüş farklılıklarının bulunduğu görülmüştür. İç piyasada sertifika talebinden kaynaklı satış problemlerinin çok az olduğu tespit edilmiştir. Anahtar kelimeler: Sürdürülebilir orman yönetimi, Sertifikalı orman ürünleri, Orman ürünleri ithalatçısı işletmeler, Türkiy

Thermal characteristics of oriental beech wood treated with some leaching resistant borates

It was aimed to investigate thermogravimetric analysis (TGA), differential-thermogravimetric (DTG), and differential-thermal analysis (DTA) of Oriental beech (Fagus orientalis L.) wood treated with some leaching resistant borates such as sodium tetraphenylborate (STPB) and phenylboronic acid (PBA). In this study; 0.25, 1.00, and 4.70 % aqueous solutions of borates were prepared. Results of the study indicated that pyrolysis occurred in three stages for STPB and PBA treated Oriental beech wood. Generally, while concentrations of the STPB and PBA increased, Ti and Tmax values of STPB and PBA treated wood specimens decreased. Residual char contents of STPB and PBA treated wood specimens for all concentrations were higher than untreated control specimen

Surface characteristics of oriental beech and scots pine woods heat-treated above 200 degrees C

Heat-treated of Oriental beech (Fagus orientalis L.) and Scots pine (Pinus sylvestris L.) woods were carried out by hot air in an oven for 1, 3, and 5 hours at 205, 220, and 235 degrees C. After heat treatments, some surface properties such as color and gloss changes of both wood specimens were evaluated. Our results showed that heat treatment caused decrease in gloss values of Oriental beech and Scots pine wood specimens. Higher treatment temperature and duration resulted in higher gloss loss of wood specimens after heat treatments. Heat-treated wood became darker tonality, especially; it became more darkening after 3 and 5 hours heat treatments. Generally according to our results, Delta a* and Delta a* decreased after heat treatments. Oriental beech wood tended to become less reddish than Scots pine after heat treatments. Delta a*, Delta b* and Delta E* of heat-treated Oriental beech and Scots pine decreased with increasing treatment temperature and duration

Poboljšanje otpornosti drva na vremenske utjecaje impregnacijom boratima i premazom od tekućeg stakla

Poor weathering performance of impregnated and coated wood products is an important issue that infl uences their appearance as well as their service life after outdoor or indoor exposure. A novel procedure to improve the weathering performance of Scots pine wood (Pinus sylvestris L.) is proposed in this study. Wood samples were impregnated with ammonium tetrafl uoroborate (ATFB), ammonium pentaborate (APB) and boric acid (BA), and afterward coated with a layer of liquid glass (LG). Surface hardness, color changes, and surface roughness of wood samples were investigated after 250 h and 500 h of exposure to artifi cial weathering. The results revealed that, except for untreated (control), all other treatment groups caused an increase in surface hardness of Scots pine after weathering. A decrease in the CIE L* value corresponds to the darkening of samples after weathering. Borates-impregnated and LG-coated Scots pine samples possessed the highest color stability. However, all treatment combinations resulted in reddish and yellowish tones after weathering. Exposure to weathering increased surface roughness of wood samples. The surface roughness of the untreated (control) group was higher than that of impregnated and coated samples.Slaba otpornost impregniranoga i premazanog drva pri izlaganju vremenskim utjecajima velik je problem koji utječe na izgled i vijek trajanja drva nakon izlaganja u eksterijeru ili interijeru. U ovom je istraživanju predložen novi postupak poboljšanja otpornosti borovine (Pinus sylvestris L.) izložene vremenskim utjecajima. Uzorci drva impregnirani su amonijevim tetrafl uoroboratom (ATFB), amonijevim pentaboratom (APB) i bornom kiselinom (BA), nakon čega su premazani tekućim staklom (LG). Ispitivana je tvrdoća površine, promjena boje i hrapavost površine uzoraka drva nakon 250 i 500 sati umjetnog izlaganja vremenskim utjecajima. Rezultati su pokazali da se na svim površinski obrađenim uzorcima borovine povećala tvrdoća njezine površine nakon izlaganja vremenskim utjecajima. Smanjenje vrijednosti CIE L* upućuje na tamnjenje uzoraka nakon izlaganja vremenskim utjecajima. Najbolju stabilnost boje pokazali su uzorci borovine impregnirani boratima i premazani tekućim staklom. Međutim, sve kombinacije površinske obrade rezultirale su povećanjem crvenoga i žutog tona nakon izlaganja uzoraka vremenskim utjecajima. Izlaganjem vremenskim utjecajima povećala se hrapavost površine uzoraka drva. No hrapavost površine kontrolnih uzoraka (površinski neobrađenih) bila je veća nego hrapavost površine impregniranih i premazanih uzoraka.No sponso

Surface characteristics of scots pine treated with chemicals containing some copper compounds after weathering

In this study, it was aimed to investigate surface hardness, gloss, and color changes of Scots pine treated with chemicals containing some copper compounds after six months weathering. Adolit KD-5 (AD KD-5), celcure AC-500 (CAC-500), and wolmanit CX-8 (WCX-8) were used as impregnation chemicals containing copper compounds. Scots pine wood specimens were treated with 2 % aqueous solution of chemicals according to ASTM D1413-07e1 (2007) standard. Results showed that while surface hardness and gloss values of untreated Scots pine wood specimens were decreased after weathering, they increased treated Scots pine wood specimens after weathering. The decrease in L* of untreated and treated wood indicates that the specimens became darker after weathering. While weathering caused less green and less yellow for untreated control specimen, it caused less red and less yellow for treated wood. Treated Scots pine wood specimens showed better color stability compared to untreated Scots pine after weathering. In terms of surface hardness, gloss, and color stability values CAC-500 treated Scots pine gave the best results after weathering

Surface characteristics of scots pine wood heated at high temperatures after weathering

This study was conducted to investigate some surface properties of wood specimens of heat treated Scots pine (Pinus sylvestris L.) after weathering such as surface hardness, surface roughness, gloss, and color changes. Heat treatment of Scots pine wood was carried out by hot air in an oven for 1, 2, and 3 hours at 210, 220, and 230°C. The results showed that generally surface hardness losses of heat treated Scots pine wood were lower than that of un-heated Scots pine wood after weathering. Heat treated Scots pine wood gave smooth surface after weathering. Except for heat treatment at 230°C for 1 and 2 hours, heat treatment resulted in better glossiness compared to un-heated Scots pine wood after weathering. According to the test results, while heat treated Scots pine wood become lighter after weathering, un-heated wood become darken after weathering. In general, heat treated wood surface to become reddish and yellowish after weathering.No sponso

Mechanical properties of impregnated and heat treated oriental beech wood

The main purpose of this study was to investigate mechanical properties such as the modulus of rupture (MOR) and compression strength parallel to grain (CSPG) of impregnated and heat-treated Oriental beech (Fagus orientalis L.) wood. Some copper and boron containing impregnation chemicals such as Wolmanit CX-8 (WCX-8) and Celcure AC-500 (CAC500) were used. Wood specimens were impregnated 2% aqueous solution of the chemicals according to ASTM D1413-07e1 standard. The wood specimens were heated at 150 and 175 °C for 4 and 8 h, respectively. Results showed that both impregnation and heat treatment decreased the MOR and CSPG of Oriental beech wood. The MOR losses of Oriental beech after both treatments were higher than CSPG losses. The largest reduction of MOR and CSPG were observed with 51.5% and 15.5% for CAC-500 impregnated and heated at 175 °C for 8 h. Except for WCX-8 impregnation and heat treatment at 150 °C for 4 and 8 h, the MOR values of impregnated and heat-treated Oriental beech wood were lower than only heat-treated Oriental beech wood. It was also found that the CSPG values of impregnated and heat-treated Oriental beech wood were higher than only heat-treated Oriental beech wood, except for impregnation and heat treatment at 175 °C for 8 h

The effect of artificial weathering on surface properties of thermally modified oriental beech wood

The study aimed to determine some surface parameters such as surface roughness and color changes of thermally modified Oriental beech (Fagus orientalis L.) wood samples after 750 hours of artificial weathering. The results of the study showed that artificial weathering led to an increase in surface roughness of Oriental beech wood. Thermal modification interval of 210 degrees C - 230 degrees C gave a smoother surface than unmodified samples after artificial weathering. Artificial weathering caused darker, reddish, and yellowish tone of unmodified and thermally modified Oriental beech wood. According to the study findings, surface properties of thermally modified Oriental beech wood were better than those of unmodified Oriental beech

Some surface characteristics of varnished thermowood after weathering

This study was designed to investigate some surface characteristics such as glossiness and surface roughness changes of varnished thermowood after six months of weathering. Thermal modification of Scots pine (Pinus sylvestris L.) and Oriental beech (Fagus orientalis L.) wood were carried out by hot air in an oven for 1, 2, and 3 hours at 205, 215, and 225°C. After the modification process, wood specimens were varnished using a polyurethane varnish (PV) and cellulosic varnish (CV). The natural weathering process caused an increase in the surface roughness of the test specimens according to the test results. The Scots pine and Oriental beech test specimens which were heat treated and varnished gave more favorable results compared to only varnish test specimens after natural weathering in terms of surface characteristics such as surface roughness and glossiness. Generally, as the heat treatment time and temperature increase, it is observed that the surface characteristics of the Scots pine and Oriental beech wood specimens improve positively. According to the results of the tests, the samples varnished with polyurethane varnish gave better results in terms of surface roughness at the end of the natural weathering process, whereas the samples varnished with cellulosic varnish gave better results in terms of glossiness values.No sponso