Breeding of Dwarf Tuberose (Polianthes Tuberosa L.)

Shen, T.-M.; Huang, Kuang Liang; Shen, R.-S.; Du, Bo-Shiun

doi:10.17660/actahortic.2003.624.9

Cited by 12 publications

(22 citation statements)

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“…%) with a heating value comparable to that obtained when pure oxygen is used as gasifying agent, i.e., 10-16 MJ/m [ 20], is produced. However, the use of steam requires, in contrast to air and oxygen gasification, extemal energy supply due to the endothermic reactions involved in the process, increasing the complexity of the system.…”

Section: Key Process Parameters In Biomass Gasification Technologiesmentioning

confidence: 77%

Gasification of Biomass to Second Generation Biofuels: A Review

Güell¹,

Sandquist²,

Sørum

2012

Journal of Energy Resources Technology

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Norway Biomass gasification has gained significant attention in the last couple of decades for the production of heat, power, and second generation biofuels. Biomass gasification processes are highly complex due to the large number of reactions involved in the overall process as well as the high sensitivity of the process to changes in the operational conditions. This report reviews the state-of-theart of biomass gasification by evaluating key process parameters such as gasifying agent, temperature, pressure, particle size, etc., for fluidized bed and entrained flow gasifiers. The pros and cons of each technology and the remaining bottlenecks are also addressed, [DOI: 10.1115/1.4007660] Recently, Cao et al. [16] developed a novel two-stage fluidized bed air gasification process for several mixed wood sawdust samples. As illustrated in Fig. 1 and described in detail in Ref. [16], the gasification process consisted of an initial region where tar decomposition occurred, followed by a second sand fluidized bed region at the bottom of the gasifier where char was partially Journal of Energy Resources Technology

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Section: Key Process Parameters In Biomass Gasification Technologiesmentioning

confidence: 77%

Gasification of Biomass to Second Generation Biofuels: A Review

Güell¹,

Sandquist²,

Sørum

2012

Journal of Energy Resources Technology

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“…This is one of the most important floral crops in Taiwan. Two major cultivars, 'Single' and 'Double' are cultivated for commercial production, and breeding programs were conducted to broaden the utilization of tuberose (Shen et al, 2003).…”

Section: Bulb Production Flower Bulbs Without Chilling Requirementsmentioning

confidence: 99%

Production of Flower Bulbs in Regions With Warm Climates

Kamenetsky¹

2005

Acta Hortic.

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The cultivation of ornamental bulbs is no longer limited to countries with a moderate climate. The production of high-quality bulbs and flowers in warm regions has become important during the last decade, and is encouraged by relatively cheap labor and the expansion of international trade. In spite of the fact that for commercial bulb production in warm-climate areas, species without chilling requirements are more suitable, thermo-periodic bulbs might also be grown successfully. Moreover, the potential for flower production in these regions is evident: since the light intensity is relatively high and winter temperatures are appropriate for flower development, cut flowers and potted plants can be produced in these areas during the off-season, and transported to markets in other countries. The Israeli experience in bulb and flower production provides a good example of the development of special strategies for warm climates. Bulbs of Hippeastrum, Narcissus, Anemone, Ranunculus, Ornithogalum and other species, adapted to relatively high temperatures, are grown commercially on a large scale. At the same time, the production of thermo-periodic bulbs with chilling requirements (Tulipa, Allium, Eremurus) allows us to meet specific market demands. Greenhouse flowers, produced during the winter and early spring are sold at high prices in the international market, but their production requires precise knowledge of the flowering physiology of the species, as well as a high level of growth technologies. Various aspects of the development of bulb and flower production in warm countries, as well as the research needed for this branch of the ornamental industry, will be discussed.

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“…[36][37][38][39] Inspired by the high-dimensional NN scheme to represent the total potential energy as a sum of atomic energies 32 and the Δ-machine learning method to predict the difference between the calculations at two levels, 40 Shen and Yang developed a novel method to introduce the machine learning methods to QM/MM models, denoted as QM/MM-NN, to achieve the accuracy of high-level ab initio QM/MM with only the computational cost of low-level SQM/MM. 41,42 The highly accurate free energy profiles on aqueous chemical processes such as S N 2 and proton transfer reactions can be obtained from direct QM/MM MD simulations combined with QM/MM-NN.…”

Section: Introductionmentioning

confidence: 99%

Solvation Free Energy Calculations with Quantum Mechanics/Molecular Mechanics and Machine Learning Models

2018

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For exploration of chemical and biological systems, the combined quantum mechanics and molecular mechanics (QM/MM) and machine learning (ML) models have been developed recently to achieve high accuracy and efficiency for molecular dynamics (MD) simulations. Despite its success on reaction free energy calculations, how to identify new configurations on insufficiently sampled regions during MD and how to update the current ML models with the growing database on-the-fly are both very important but still challenging. In this letter, we apply the QM/MM ML method to solvation free energy calculations and address these two challenges. We employ three approaches to detect new data points and introduce the gradient boosting algorithm to reoptimize efficiently the ML model during ML-based MD sampling. The solvation free energy calculations on several typical organic molecules demonstrate that our developed method provides a systematic, robust and efficient way to explore new chemistry using ML-based QM/MM MD simulations.

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Breeding of Dwarf Tuberose (Polianthes Tuberosa L.)

Cited by 12 publications

References 0 publications

Gasification of Biomass to Second Generation Biofuels: A Review

Gasification of Biomass to Second Generation Biofuels: A Review

Production of Flower Bulbs in Regions With Warm Climates

Solvation Free Energy Calculations with Quantum Mechanics/Molecular Mechanics and Machine Learning Models

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