PRELIMINARY PHYTOCHEMICAL SCREENING OF POLYSACCHARIDES CONTENT FOR SELECTION OF HIGH QUALITY PLANTING MATERIALS: Eurycoma longifolia

2015 ◽  
Vol 77 (24) ◽  
Author(s):  
Mohd Zaki, A. ◽  
Nor Fadilah, W. ◽  
Abdul Rashid, L. ◽  
Nurnadiah, R. ◽  
Mohd Radzi, A. ◽  
...  
Keyword(s):  
Water Extract ◽  
Provenance Trial ◽  
Phytochemical Screening ◽  
High Quality ◽  
Actual Weight ◽  
Eurycoma Longifolia ◽  
Polysaccharide Content ◽  
Root Part ◽  
Planting Materials ◽  
Selection Of

Provenance trial of Eurycoma longifolia is currently being carried out in order to provide necessary information for breeding strategies, which is crucially needed for the production of high quality planting materials. Assessment of polysaccharides content in the root part of the plant is taken among the important characteristics in the selection of the best provenance. Polysaccharides compound is chosen as bioactive marker due to the non-toxicity nature of the compound and potential pharmacological properties possessed. Polysaccharides compound of the root part is extracted by using water extract procedure from nine selected provenances (Johor, Melaka, Pahang A, Pahang B, Pahang D, Perak, Pulau Pinang, Selangor and Terengganu) of E. longifolia collected throughout forest reserves of Peninsular Malaysia. The analysis of the actual weight of the compound is conducted using phenol-sulfuric acid method by UV-VIS and High Performance Liquid Chromatography (HPLC) is used for the detection of structural components of the polysaccharides compound. The assessment showed that polysaccharides content in the root part of Terengganu provenance significantly has the highest with 1.06 % actual weight of polysaccharides (out of 30 g extracted dry roots). Meanwhile, there are four provenances showed undetectable range of polysaccharide content which were Melaka, Pahang A, Pulau Pinang and Selangor. In a nutshell, based on the preliminary assessment of polysaccharide content alone, Terengganu provenance has the potential to be declared among the best provenances that has high quality. The provenance trial also has taken into considerations several important parameters such as the growth performances variation and the tolerance of the plants to pests and diseases besides the phytochemical screening. Provenance trial of E. longifolia is still ongoing, data for various parameters are still being collected, and thus it is still too early to derive a conclusion of which is the best provenance.

Selection of high-quality sperm with thousands of parallel channels

Lab on a Chip ◽  
2021 ◽  
Author(s):  
Mohammad Simchi ◽  
Jason Riordon ◽  
Jae Bem You ◽  
Yihe Wang ◽  
Sa Xiao ◽  
...  
Keyword(s):  
Clinical Practice ◽  
High Selectivity ◽  
High Yield ◽  
Sperm Selection ◽  
High Quality ◽  
Parallel Channels ◽  
Selection Of

A 3D-structured sperm selection device is presented that achieves both high selectivity and high yield via thousands of parallel channels. The device significantly outperforms the best clinical practice by selecting ∼100 000 of higher-quality sperm.

Twisted oxide lateral homostructures with conjunction tunability

2021 ◽  
Author(s):  
Jan-Chi Yang ◽  
Ping-Chun Wu ◽  
Chia-Chun Wei ◽  
Qilan Zhong ◽  
Sheng-Zhu Ho ◽  
...  
Keyword(s):  
Wide Spectrum ◽  
Strain Engineering ◽  
Epitaxial Films ◽  
Modern Technology ◽  
Specific Substrate ◽  
Lattice Structures ◽  
High Quality ◽  
The Past ◽  
Sharp Interfaces ◽  
Selection Of

Abstract Epitaxial growth is of significant importance over the past decades, given it has been the key process of modern technology for delivering high-quality thin films. For conventional heteroepitaxy, the selection of proper single crystal substrates not only facilitates the integration of different materials but also fulfills interface and strain engineering upon a wide spectrum of functionalities. Nevertheless, the lattice structures, regularity and crystalline orientation are determined once a specific substrate is chosen. In this work, we reveal the growth of twisted oxide lateral homostructures with multiple conjunction degree of freedom. The twisted lateral homostructures with atomically sharp interfaces can be composed of epitaxial “blocks” with different crystalline orientations, ferroic orders and phases. We further demonstrate that this approach is universal for fabricating various complex systems. Our results establish an efficient pathway towards twisted lateral homostructures, allowing epitaxial films to be arbitrarily tailored at designated positions with unbounded in-plane conjunction tunability.

scholarly journals Supplier evaluation: The first step in effective sourcing

2013 ◽  
Vol 7 (1) ◽  
Author(s):  
Kateřina Pikousová ◽  
Petr Průša
Keyword(s):  
Performance Evaluation ◽  
Supplier Evaluation ◽  
High Quality ◽  
Supplier Performance ◽  
Evaluation Matrix ◽  
Evaluation Techniques ◽  
Selection Of

The evaluation and selection of suppliers are important tasks in any organisation. Each organisation needs to have a supplier evaluation matrix or model in place. The goal of this article is not only to give an overview of supplier performance evaluation techniques but also to present an example of such a supplier evaluation matrix used in practice. The article shows that suppliers’ qualities, strategies and abilities affect a buying company’s business. Reliable suppliers can help to develop stabile, long-term relationships that will be beneficial to both parties. Effective sourcing and purchasing require high-quality suppliers.

Translation Technology

2015 ◽  
Author(s):  
Lynne Bowker ◽  
Gloria Corpas Pastor
Keyword(s):  
Professional Competence ◽  
High Quality ◽  
Translation Tools ◽  
Use Of Technology ◽  
Computer Aided ◽  
Increase Productivity ◽  
Selection Of

In today’s market, the use of technology by translators is no longer a luxury but a necessity if they are to meet rising market demands for the quick delivery of high-quality texts in many languages. This chapter describes a selection of computer-aided translation tools, resources, and applications, most commonly employed by translators to help them increase productivity while maintaining high quality in their work. This chapter also considers some of the ways in which translation technology has influenced the practice and the product of translation, as well as translators’ professional competence and their preferences with regard to tools and resources.

Characterisation of the Femtosecond Laser Micro-Grooving Process for Germanium Substrates

2016 ◽  
Vol 874 ◽  
pp. 291-296 ◽  
Author(s):  
Lin Li ◽  
Jun Wang ◽  
Huai Zhong Li
Keyword(s):  
Experimental Study ◽  
Process Parameters ◽  
Material Removal ◽  
Removal Rate ◽  
High Quality ◽  
Scan Speed ◽  
Micro Grooving ◽  
Fs Laser ◽  
Selection Of ◽  
Germanium Substrates

An experimental study is reported to characterise the femtosecond (FS) laser grooving process for Germanium (Ge) substrates. The effects of process parameters, including laser fluence, pulse repetition rate and scan speed, on the groove characteristics, material removal rate (MRR) and heat affected zone (HAZ) size are discussed. It is shown that with properly selected process parameters, high quality micro-grooves can be obtained on Ge wafers. Recommendations are finally made on the selection of the most appropriate process parameters for FS micro-grooving of Ge substrates.

scholarly journals Manajemen Biaya untuk Meningkatkan Ketepatan Penghitungan Biaya melalui Biaya Berbasis Aktivitas

2018 ◽  
Vol 7 (2) ◽  
pp. 125
Author(s):  
Agung Listiadi
Keyword(s):  
Cost Driver ◽  
Management Systems ◽  
Activity Based Costing ◽  
High Quality ◽  
Overhead Cost ◽  
Consumption Cost ◽  
Costing System ◽  
Major Factors ◽  
The Cost ◽  
Selection Of

Cost is an important factor in ensuring the company win in the competition on the market. Consumers will choose a manufacturer that is able to produce products and services that have high quality with low prices. Costs of Management Systems Contemporary emphasis on search than the allocation. And management based activities are at the heart of contemporary operating control system. At least two major factors that must be considered in the selection of cost driver (cost driver) are: the cost of measurement and the degree of correlation between the consumption cost driver with the actual overhead. Cost driver is divided into two categories, namely the structural cost driver and executional cost driver. Cost driver is the basis used to charge collected on cost pool to the product. So that the calculation of the cost through Time Driven activity-based costing system, the company obtain more precise information and accurate.

scholarly journals GENETIC VARIATION OF HUMPBACK GROUPER (Cromileptes altivelis) ON F1 AND F3 GENERATIONS

2013 ◽  
Vol 5 (1) ◽  
Author(s):  
Sari Budi Moria Sembiring ◽  
Tridjoko Tridjoko ◽  
Haryanti Haryanti
Keyword(s):  
Body Weight ◽  
Genetic Variation ◽  
Body Length ◽  
Quantitative Characteristic ◽  
Breeding Program ◽  
High Quality ◽  
Culture Technology ◽  
Selection Of ◽  
Rapd Method

Hatchery and culture technology of Humpback grouper has been developed. However,  sometimes it is still found constraint in sedd production and caused instability of production due to failure by many factors. Breeding program become necessary to provide seed with high quality and good genetic variation. Quantitative characteristic selection is one of breeding program to improve productivity in grouper aquaculture. The aim of this research was to produce good phenotyphic and genotypic quality of Humpback grouper candidate broodstock. Selection of Humpback grouper F1 and F3 was done based on quantitative characteristic (body length and weight) and genotyphic characteristic by using ramdom amplified polymorphism DNA (RAPD) method.  The results of conventional selection were found candidate broodstock of Humpback grouper F1 and F3 with body weight range from 170-210 g and 160-170 g consecutively.  Heterozygosity values of Humpback grouper analized by RAPD of F1 and F3 were 0.7940 and 0.7749 consecutively and it was not significantly different. This value emphasis that population of this F3 Humpback grouper was still good to grow for broodstock. Keywords: genetic variation, humpback grouper, F1, F3.

scholarly journals Dependences Of Reservoir Oil Properties On Surface Oil

2020 ◽  
Author(s):  
Sudad H Al-Obaidi ◽  
Galkin AP
Keyword(s):  
Hydrodynamic Models ◽  
Reservoir Properties ◽  
High Quality ◽  
Data Dependencies ◽  
Models Of Development ◽  
Production Wells ◽  
Exploration And Production ◽  
High Degree ◽  
Selection Of

Knowledge of the properties of reservoir oil is necessary when calculating reserves, creating projects development, creating hydrodynamic models of development objects. Reservoir oil properties are determined by downhole samples taken, as usual, from exploration and production wells. In some cases, it is impossible to create conditions for the selection of high-quality downhole samples at exploration and production wells. In such cases, we must use samples of surface oil to obtain information about the reservoir properties of this oil. In this work and as a result of the analysis of the accumulated data, dependencies with a high degree of correlation were obtained, which make it possible to quickly assess the expected parameters of reservoir oil, having only the density of surface oil.

scholarly journals Analysis of procedures for heating, ventilation and air conditioning for transfer to low-temperature heat supply

2019 ◽  
pp. 8-8
Author(s):  
Stanislav Chicherin
Keyword(s):  
Water Supply ◽  
Heat Supply ◽  
Heating System ◽  
Heat Energy ◽  
Hot Water ◽  
Heat Consumption ◽  
High Quality ◽  
Hot Water Supply ◽  
Supply Systems ◽  
Selection Of

Introduction. Renovation of housing stock supposes construction of new buildings, where the main utilities consuming heat energy will be heating and hot water supply (HWS) systems. Under such conditions the task of heat consumption reduction by transfer to low-temperature and use of the associated procedures is relevant. Materials and Methods. Research was performed on the basis of residential and administration buildings designed within the whole Russia, the facilities were selected based on the year of putting into operation and their purpose. The source of data concerning buildings became documents included into the scope of the design and detailed documentation: plans, drawings and explanatory notes. As meeting the demands of hot water supply makes the main contribution to daily nonuniformities of heat energy consumption, the attention was paid to equipment of hot water supply systems. For calculations, the commercial product of Microsoft Office Excel 2010 was used. Results. During selection of roof boiler house as a source of heat supply increase in consumption of equivalent fuel in relation to the variant of connection to heat power plant operating on solid fuel by 187,314 tons of fuel oil equivalent is possible. General refusal from power-and-heat generation complicates operation of large district heat supply systems. The design parameters of coolant in building heating system differ from project to project: from 95/70 °С, used everywhere till the beginning of the XXI century, up to 90/65 °С corresponding to existing practice of designing or 80/60 °С as at the facility in Sevastopol. Reduction of design temperatures by 5 % is insufficient to decrease general heat consumption of the building. Reduction of heat consumption is explained by selection of advanced materials for pipeline heat insulation. Use of automation diagrams for heat points on the basis of regulator ECL Comfort 310 contributes to improvement of hydraulic control for heating systems, however, concealed automation results in violation of high-quality mode for heat network control and decrease of coolant parameters on adjacent (often non-automated) consumers. Conclusions. Supplement of central high-quality control by local constant temperature/variable flow control at individual heat unit and installation of temperature controllers on heating radiators with mechanical thermostatic head have potential for reduction of the heat energy volume used ineffectively. Increase in level of controllability for heating system together with cheaper and responsive automation systems are basic conditions for increase in quality of heat supply in future.

scholarly journals Identification of Phytochemicals from the Water Extract of Eurycoma longifolia Roots using Solid-Liquid and Liquid-Liquid Extraction Based Fractionation Techniques

2021 ◽  
Vol 68 (4) ◽  
pp. 765-772
Author(s):  
Lee Suan Chua ◽  
Abirame Segaran ◽  
Hoi Jin Wong
Keyword(s):  
Ethyl Acetate ◽  
Solid Phase ◽  
Water Extract ◽  
Reversed Phase ◽  
Liquid Extraction ◽  
Acetone Precipitation ◽  
Eurycoma Longifolia ◽  
Liquid Liquid Extraction ◽  
Saponin Content ◽  
Solid Liquid

Phytochemicals in the water extract of Eurycoma longofolia roots were identified using both solid-liquid and liquid-liquid extraction based fractionation techniques. A reversed phase C18 solid phase extraction (SPE) was used as solid-liquid extraction, whereas solvent partition was applied as liquid-liquid extraction. Total saponin was increased after fractionation. A few known quassinoids; eurycomanone, 13α(21)-epoxyeurycomanone, pasakbumin D, 13β,18-dihydroeurycomanol and 13β,21-dihydroxyeurycomanol were identified from the 40% and 60% methanol fractions of SPE. Solvent partition extract using ethyl acetate was found to have the highest saponin content compared to butanol and chloroform fractions. Subsequent acetone precipitation of the organic fractions recovered a formylated hexose trimer and other saccharide-containing compounds. Ethyl acetate effectively recovered saponins from E. longofolia water extract using liquid-liquid extraction followed by acetone precipitation.

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