搜索结果: 1-15 共查到“农学 optimization.”相关记录33条 . 查询时间(0.198 秒)
Use of Optimization Modeling to Assess the Effect of Timber and Carbon Pricing on Harvest Scheduling, Carbon Sequestration, and Net Present Value of Eucalyptus Plantations
timber harvest scheduling mixed-integer programming harvest age carbon sequestration
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2023/12/19
Quantifying the impact of carbon (C) and timber prices on harvest scheduling and economic returns is essential to define strategies for the sustainable management of short-rotation plantations so that...
Forest management optimization across spatial scales to reconcile economic and conservation objectives
DEAD-WOOD BIODIVERSITYCONSERVATION FINLAND MULTIFUNCTIONALITY
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2024/2/27
Conflicts between biodiversity conservation and resource production can be mitigated by multi-objective management planning. Optimizing management for multiple objectives over larger land areas likely...
Optimization of Swine Breeding Programs Using Genomic Selection with ZPLAN+
Breeding Program Genomic Selection Swine ZPLAN+
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2016/5/20
The objective of this study was to evaluate the present conventional selection program of a swine nucleus farm and compare it with a new selection strategy employing genomic enhanced breeding value (G...
Road network optimization using heuristic and linear programming
cable yarding mixed integer programming network analysis optimum road density production
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2015/3/20
To minimize the cost of logging, it is necessary to optimize the road density. The aim of this study was to determine optimal road spacing (ORS) in Northern Austria. The stepwise regression method was...
Optimization of digital terrain model for its application in forestry
digital terrain model geographic information system
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2015/3/3
Digital terrain model (DTM) represents a very important geospatial data type. In the Czech Republic, the
most common digital contour data sources are the Primary Geographic Data Base (ZABAGED), the ...
Optimization of the Cry2Aa gene and development of insect-resistant and herbicide-tolerant photoperiod-sensitive genic male sterile rice
Bar gene Cry2Aa# gene herbicide tolerance insect resistance PGMS line rice
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2014/3/31
In this study, an optimized Cry2Aa gene was obtained after codon optimization based on the preferred codons in rice. The novel fusion gene Cry2Aa# was designed by adding the sequence coding the signal...
Optimization of anaerobic fermentation of kitchen waste
biogas methane digestion waste treatment biowaste
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2014/2/24
Anaerobic fermentation is a suitable method of energetic and material utilisation of waste coming from restaurants
and canteens. Laboratory experiments of wet anaerobic fermentation were performed i...
Transient GUS and GFP Expression in Spanish Red Cedar (Cedrela odorata L.) Somatic Embryos. Optimization of Bombardment Conditions and Evaluation of Selective Agent Lethal Dose
Biolistics Genetic Transformation Tree Genetic Modification Tropical Wood
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2013/3/4
Cedrela odorata is a tropical tree widely appreciated for its wood. Commercial plantations are frequently hampered by the attack of the meliacea borer, Hypsipyla grandella, and the lack of resistant v...
Optimization and production of antifungal hydrolysis enzymes by streptomyces aureofaciens against Colletotrichum gloeosporioides of mango
Antifungal Colletotrichum Gloeosporioides
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2013/3/4
We isolated naturally occurring actinomycetes with an ability to produce metabolites having antifungal property against, Colletotrichum gloeosporioides, the causal agent of mango anthracnose. One prom...
Optimization of Culture Medium for Baker’s Yeast, Ethanol, Citric Acid and Α-amylase Production from Dates Syrup.
Dates Baker’s yeast Ethanol Citric acid α-amylase
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2010/12/16
Optimization of Culture Medium for Baker’s Yeast, Ethanol, Citric Acid and Α-amylase Production from Dates Syrup.
Optimization and characterization of an extracellular proteases from Aspergillus flavus ”MTCC 277”
Inhibitors optimization proteases zymography
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2011/1/12
The present study was undertaken to describe the optimization and characterization of proteases produced by, Aspergillus flavus MTCC 277. This strain exhibited the highest protease production after 4 ...
Research on agricultural search engine optimization
Search engine optimization (SEO) kernel principal component analysis (KPCA)
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2011/1/11
Search engine optimization (SEO) has practical significance for promoting farmers income and agricultural efficiency in China.
Optimization of in vitro direct regeneration of multiple shoots in upland cotton (Gossypium hirsutum L.) cv. Iranian varieties
Regeneration benzylaminopurine kinetin zeatin cotton
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2011/1/11
A direct shoot regeneration protocol was optimized for upland cotton (Gossypium hirsutum L.). Three cultivars of cotton namely Bakhtegan, Zeta-2 and their hybrid (Bakhtegan×Zeta-2) were used to study ...
Multi-goal pig ration formulation; mathematical optimization approach
mathematical programming ration costs organic farming pork
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2010/1/19
Organically produced pork is characterized by high production costs, within the main
part goes to ration cost. Forage must be produced under strict conditions, reflecting in high
prime costs. The ...
热激法修饰瑞士乳杆菌的参数优化与特性研究（Parameters Optimization and Properties for Lactobacillus helveticus by Heat-shock Treatment）
瑞士乳杆菌 热激处理 特性
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2009/9/11
采用不同热处理温度(67、70℃)与时间(10、15、20s)对瑞士乳杆菌（Lactobacillus helveticus）进行热激修饰，研究处理前后与干酪加工相关的菌体特性，同时对热激修饰条件参数进行优化。研究结果表明，菌体经70℃、10?s热激处理后，菌体存活率、动态产酸能力、蛋白水解能力等指标符合热激要求，经修饰后的菌株适宜作为干酪促熟酶源。采用扫描电镜对细菌表面微观结构的观察结果表明，热...