scholarly journals Case Study: Economic viability of producing animal bedding from low quality and small diameter trees using a wood shaving machine

2017 ◽  
Vol 33 (6) ◽  
pp. 771-779 ◽  
Author(s):  
Matthew M. Smith ◽  
John D. Aber ◽  
Theodore E. Howard
Keyword(s):  
Small Diameter ◽  
Economic Viability ◽  
Wood Shaving ◽  
Small Diameter Trees ◽  
Animal Bedding

Performance Evaluation of a Solar Water Heating System for Industrial Application

2012 ◽  
Vol 512-515 ◽  
pp. 130-136
Author(s):  
Keh Chin Chang ◽  
Wei Min Lin ◽  
Yi Mei Liu ◽  
Tsong Sheng Lee ◽  
Kung Ming Chung
Keyword(s):  
Performance Evaluation ◽  
Heating System ◽  
Economic Viability ◽  
Solar Collectors ◽  
Water Heating ◽  
Policy Makers ◽  
Solar Water Heating ◽  
Solar Water ◽  
Solar Water Heating System

The total area of solar collectors installed in Taiwan had exceeded 2 million square meters by the end of 2010. However, there were only 98 systems in operation with area of solar collectors installed exceeding 100 square meters from 2001 to 2010. To increase industrial awareness of solar water heating technologies, a nursery greenhouse was chosen as the case study to evaluate its thermal performance throughout the months of May 2010 to April 2011. The results showed that the solar energy collected and heat loss during the night hours would affect the thermal efficiency, economic viability and attractiveness of a SWH. This study would provide useful information for all parties related to this market, manufacturers, potential users and policy-makers.

Evaluation of moisture reduction in small diameter trees after crushing

1991 ◽  
Vol 37 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Donald L. Sirois ◽  
Cynthia L. Rawlins ◽  
Bryce J. Stokes
Keyword(s):  
Small Diameter ◽  
Small Diameter Trees

scholarly journals Cosplay on Demand? Instagram, OnlyFans, and the Gendered Fantrepreneur

2021 ◽  
Vol 7 (3) ◽  
pp. 205630512110423
Author(s):  
Lauren Rouse ◽  
Anastasia Salter
Keyword(s):  
Economic Viability ◽  
Sample Analysis ◽  
Digital Platforms ◽  
Brand Building ◽  
On Demand ◽  
Television Shows ◽  
History Of ◽  
The Media ◽  
Favorite Television

Fan producers engaged in monetization, or what Suzanne Scott has termed “fantrepreneurs,” struggle with legal mechanisms for brand-building given the limitations of both copyright and platform moderation. These challenges have been amplified during the COVID-19 pandemic, which has fundamentally changed the way that cosplayers, or fans who dress up as characters from their favorite television shows or movies, market themselves in an increasingly online space, as opposed to their initial public platforms of conventions. Restricted by digital platforms and their various moderation and monetization methods, cosplayer fantrepreneurs have developed new, multi-platform methods for sustaining their content and community connection. One prominent platform significant to this turn is OnlyFans, which is billed as a “peer-to-peer subscription app,” and allows users to “Sign up and interact with your fans!” Through a sample analysis of 50 cosplayers, this case study considers the approaches of cosplayers on integrating OnlyFans as part of a multiplatform struggle for economic viability. When we contextualize this platform labor in the history of cosplay, we note the hypersexualized labor that has always been central to monetization in this space, and the media franchise exploitation that profits from that labor at the expense of the fan producer, demonstrating the fundamental, gendered exploitation of the trend toward a patronage economy.

scholarly journals Chipping Whole Trees for Fuel Chips: A Production Study

2007 ◽  
Vol 31 (4) ◽  
pp. 176-180 ◽  
Author(s):  
Dana Mitchell ◽  
Tom Gallagher
Keyword(s):  
Loblolly Pine ◽  
Longleaf Pine ◽  
Small Diameter ◽  
Wage Rates ◽  
Time And Motion ◽  
Motion Study ◽  
Average Production ◽  
Production Study ◽  
Small Diameter Trees ◽  
The Cost

Abstract A time and motion study was conducted to determine the productivity and cost of an in-woods chipping operation when processing whole small-diameter trees for biomass. The study removed biomass from two overstocked stands and compared the cost of this treatment to existing alternatives. The treatment stands consisted of a 30-year-old longleaf pine stand and a 37-year-old loblolly pine stand. In the longleaf pine stand, 71% of the trees removed were less than 5 in. dbh. In the loblolly pine stand, approximately 81% of the stems removed were less than 5 in. dbh. The harvesting system consisted of conventional ground-based harvesting equipment and a three-knife chipper that processed the biomass into fuel chips. The average production time to fill a chip van was 24.61 minutes. The chip moisture content averaged 94.11% (dry basis). Using machine rates and federal labor wage rates, the in-woods cost of producing fuel chips was $9.18/green ton (gt). The cost of the biomass chipping operation ($15.18/gt), including transportation, compared favorably to existing alternative treatments of cut-and-pile or mulching.

scholarly journals Dual-Cropping Loblolly Pine for Biomass Energy and Conventional Wood Products

2008 ◽  
Vol 32 (1) ◽  
pp. 33-37 ◽  
Author(s):  
D. Andrew Scott ◽  
Allan Tiarks
Keyword(s):  
Loblolly Pine ◽  
Small Diameter ◽  
Cropping System ◽  
N Fertilization ◽  
Wood Products ◽  
Biomass Energy ◽  
Pine Plantation ◽  
Southern Pine ◽  
Small Diameter Trees ◽  
Viable Method

Abstract Southern pine stands have the potential to provide significant feedstocks for the growing biomass energy and biofuel markets. Although initial feedstocks likely will come from low-value small-diameter trees, understory vegetation, and slash, a sustainable and continuous supply of biomass is necessary to support and grow a wood bioenergy market. As long as solidwood products are more valuable, bioenergy production will not be the primary market for southern pine. A study exploring a dual-cropping system for southern pine bioenergy and solidwood products was begun in 1982 in Louisiana to determine the phosphorus (P) nutritional requirements of the system. Fertilization of 60 kg ha−1 of P was required to produce 90% of the maximum volume at the age of 22 years. Direct-seeding pine in the interrows of a traditional pine plantation produced about 10.2 Mg ha−1 of biomass for energy at the age of 5 years but had no lasting effect on the planted pine height, diameter, or standing volume. The system is a viable method to produce both bioenergy and solidwood products. Herbaceous competition control and nitrogen (N) fertilization likely would make the system even more productive and profitable.

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