Investigating Two Customer Lifetime Value Models from Segmentation Perspective

AbstractCustomer lifetime value has been a topic of interest for some years upon which plenty of academics and marketing managers have been dwelling. The topic plays a key role in customer relationship management and has been implemented in variety of sectors. The main goal of customer lifetime value is to specify the importance level of each customer for a company. Such questions as what sort of marketing strategies should be preferred for which customers, how much investments should be made for them and which marketing campaigns should be followed can all be determined by calculating lifetime value of customers. Many researchers have proposed different types of models for calculating customer lifetime value. Yet, the related literature lacks of comparative research on assessing the existing models, especially within the scope of segmentation. This paper aims at providing a classification for the current models in the literature based on their basic characteristics and making a comparison between two representative models from different classes using the same database. An evaluation from segmentation perspective was done and the results indicated that the model that represented the future-past customer behaviour model class was found to be superior than its peer using the same database and variables

Svojstva iverice izrađene od drva crvenog cedra i modificiranog škroba kao veziva

The objective of this study was to evaluate physical and mechanical properties of experimental panels manufactured from eastern red cedar (Juniperus virginiana L.) using modified starch as binder. Modulus of elasticity (MOE), modulus of rupture (MOR), internal bond strength (IB), hardness and dimensional stability in the form of thickness swelling and water absorption in addition to surface quality of the samples were tested. Panels were manufactured at three density levels, which are 0.60 g/cm3, 0.70 g/cm3 and 0.80 g/cm3. The highest MOE, MOR and IB values for the samples having 0.80 g/cm3 density were determined as 2207.16 MPa, 15.17 MPa and 0.87 MPa, respectively. Thickness swelling values of the samples soaked in water for 2 h ranged from 15.38 % to 23.23 %. Micrographs taken on the samples using scanning electron microscope revealed that starch was uniformly distributed within the particles. Based on the findings in this study, it appears that eastern red cedar would have a potential as a raw material to manufacture particleboard panel using modifi ed starch as green adhesive with accepted physical and mechanical properties.Cilj istraživanja bio je odrediti fizička i mehanička svojstva eksperimentalnih ploča proizvedenih od drva crvenog cedra (Juniperus virginiana L.) uz upotrebu modificiranog škroba kao veziva. U eksperimentu su na osnovi debljinskog bubrenja i upijanja vode ispitivani modul elastičnosti (MOE), modul loma (MOR), međuslojna čvrstoća (IB), tvrdoća i dimenzijska stabilnost, kao i kvaliteta površine uzoraka. Ploče su proizvedene u tri gustoće: 0,6; 0,7 i 0,8 g/cm3. Najveće vrijednosti MOE, MOR i IB za uzorke gustoće 0,8 g/cm3 bili su redom: 2207,16 MPa; 15,7 MPa i 0,87 MPa. Vrijednosti debljinskog bubrenja uzoraka potapanih u vodi tijekom dva sata kretale su se u rasponu od 15,38 do 23,23 %. Mikrografi je snimljene na uzorcima elektronskim pretražnim mikroskopom otkrile su da je škrob ravnomjerno raspoređen unutar iverja. Na temelju rezultata ovoga istraživanja, čini se da bi drvo crvenog cedra moglo biti potencijalna sirovina za proizvodnju iverica, uz uporabu modificiranog škroba kao ekološki prihvatljivog ljepila poželjnih fizičkih i mehaničkih svojstava

Electrical Characteristics of Polypropylene Mixed with Natural Nanoclay

Polypropylene has been used in radio-frequency capacitors and has also started to be employed in cables as insulation. The objective of this study was to evaluate the electrical properties of polypropylene filled with natural clay as a nano-material. Polypropylene samples having 0%, 2% and 6% natural clay by weight were exposed to 60-Hz sinusoidal voltages at two different rates of rise. The breakdown voltage of each sample was recorded at these different ramp rates. Also, the Root-mean-squared (rms) current was measured as the voltage was increased across the test samples. The important findings of this study were (a) the breakdown strength of the natural nanoclay-filled polypropylene was higher than the unfilled polypropylene, and the optimum concentration of nanoclay appeared to be 2% by weight; (b) the current density as a function of the electric-field intensity indicated a non-linear behavior with saturation, and the saturation onset took place at a higher electric-field intensity in nanoclay-filled polypropylene, wherein 2% nanoclay seemed to be the optimum concentration as well for the onset electric field of saturation

Simplified quality control in lumber manufacturing

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Basics of softwood sawmilling

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Basics of formaldehyde emission from wood composite panels

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Basics of solar lumber drying

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Oriented strand board as a building material

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Basics of laminated flooring

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311

Practical approaches to wood finishing

The Oklahoma Cooperative Extension Service periodically issues revisions to its publications. The most current edition is made available. For access to an earlier edition, if available for this title, please contact the Oklahoma State University Library Archives by email at [email protected] or by phone at 405-744-6311