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High Performance n

Short channel (∼80 nm) n-type single-walled carbon nanotube (SWNT) field-effect transistors (FETs) with potassium (K) doped source and drain regions and high-κ gate dielectrics (ALD HfO2) are obtained. For nanotubes with diameter ∼1.6 nm and band gap ∼0.55 eV, we obtain n-MOSFET-like devices exhibiting high on-currents due to chemically suppressed Schottky barriers at the contacts

Biochar (Black Carbon)

Introduction: It has only recently been realized that pyrogenic carbon, biochar or black carbon (BC), can make up a significant fraction of the organic carbon in soils and sediments.As such, BC is an important but poorly understood portion of the global carbon cycle. Biochar also may be useful as an additive to soils to enhance fertility and sequester carbon due to its adsorptive properties.

Chatterjee Partha

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Scaling carbon nanotube complementary transistors to 5

Jan 20, 2017One option for extending the performance of complementary metal-oxide semiconductor (CMOS) devices based on silicon technology is to use semiconducting carbon nanotubes as the gates. Qiu et al. fabricated top-gated carbon nanotube field-effect transistors with a gate length of 5 nm. Thin graphene contacts helped maintain electrostatic control. A scaling trend study revealed that,

Basic Overview on Gas Chromatography Columns

Nov 25, 2015As a newly developed carbon‐based material, graphene oxide (GO) possesses most of the advantages of CNTs . GO is a single‐layered nanosheet prepared via chemical exfoliation of graphite. GO has a high surface area, high adsorption ability, and is stable at high temperature. It is strongly hydrophilic and water soluble due to the presence of

Optimization of Process Parameters by Statistical

Naringinase has attracted a great deal of attention in recent years due to its hydrolytic activities which include the production of rhamnose and prunin and debittering of citrus fruit juices. Screening of fifteen marine-derived fungi, locally isolated from Ismalia, Egypt, for naringinase enzyme production, indicated that Aspergillus niger was the most promising.

Economa de Desastres

Los gobiernos tienen que asumir el liderazgo en la implantacin de acciones preventivas tanto directamente, asignando eficientemente recursos pblicos, como indirectamente, mostrando a las personas cmo protegerse. Este es el desafo real al que no solamente el Banco Mundial, sino todos nosotros, nos enfrentamos.

Kohlenstoffnanorhre – Wikipedia

Kohlenstoffnanorhren, auch CNT (englisch carbon nanotubes), sind mikroskopisch kleine rhrenfrmige Gebilde (molekulare Nanorhren) aus Kohlenstoff.. Ihre Wnde bestehen wie die der Fullerene oder wie die Ebenen des Graphits – eine einzelne Ebene des Graphits wird als Graphen bezeichnet – nur aus Kohlenstoff, wobei die Kohlenstoffatome eine wabenartige Struktur mit Sechsecken und

Cooking Oil

Mitra cooking oil is a high quality cooking oil that is derived from carefully selected palm fruit and produced through latest refining technology under best quality control to ensure the clarity and purity. The application for this cooking oil is cooking, deep frying, stir fry, and salad. Certifications

Building the "perfect beast": modelling mixotrophic

Parameter. Description. Equation. Value and units. AA syn Cost for amino acid synthesis 8, 40 1.5 gC (gN) −1 AE max Maximum AE 28, 29 0.75 AE min Minimum AE 28, 29 0.5 BR Basal respiration rate 8, 23, 41 0.05 gC (gC −1) day −1 CChl Carbon associated with photosystem 12 12 gC (gChl) −1 ChlC abs Absolute maximum Chl:C 12

Biodiversity Conservation in the REDD

Nov 23, 2010Deforestation and forest degradation in the tropics is a major source of global greenhouse gas (GHG) emissions. The tropics also harbour more than half the world's threatened species, raising the possibility that reducing GHG emissions by curtailing tropical deforestation could provide substantial co-benefits for biodiversity conservation. Here we explore the potential for such co-benefits in

Basis of Permeability/Selectivity Tradeoff Relations in

Ornthida Sae-Khow and Somenath Mitra. Carbon Nanotube Immobilized Composite Hollow Fiber Membranes for Pervaporative Removal of Volatile Organics from Water. The Journal of Physical Chemistry C 2010, 114 (39), 16351-16356. DOI: 10.1021/jp1064402. Huiqing Wu, Beibei Tang, and


El conjunto de minas denominado bLa Encarnada /bse estableci como una "bSociedad en comandita Minas de la Encarnada/b" bajo la razn social de b"Vigil-Escalera y compaa/b", y estaba formada por las minas: bSultana/b, bPepes/b, bDorotea /by bVentura/b, Las Minas "bLa Encarnada/b" llegaron a producir 35.000 Tm anuales de carbn.

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PARAM MITRA COAL RESOURCES ONE PTE. LIMITED is a company registered in Singapore. To check the full profile, please click Company details. 1 PHILLIP STREET #11-01 ROYAL ONE PHILLIP Singapore 048692. Company details. Company details Address: 1

Mitra Water

Selamat Datang di Website Mitra Water. Kami merupakan perusahaan yang berdiri sejak tahun 2009 bergerak dalam industri Pompa, Filter Media Dan Filter Katrid, Tabung Filter Dan Aksesorisnya, Mesin RO, Lampu Ultraviolet Dan Ozon Generator, Alat Uji Kualitas Air. Kami berada di

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Initial report on methane and carbon dioxide emission

Sep 01, 2017Among the parameters measured were CH4 and CO2 emissions, as well their dissolved concentrations in the water column, which were determined with high spatial resolution. No ebullition was observed and the CH4 flux ranged from 0.0094 to 4.47mmolm-2d-1 while the CO2 flux ranged from -22.95 to 35.68mmolm-2d-1.

Carbon Nanotube Terahertz Polarizer

We describe a film of highly aligned single-walled carbon nanotubes that acts as an excellent terahertz linear polarizer. There is virtually no attenuation (strong absorption) when the terahertz polarization is perpendicular (parallel) to the nanotube axis. From the data, the reduced linear dichrosim was calculated to be 3, corresponding to a nematic order parameter of 1, which demonstrates

mine de charbon pt bumi makmur persada

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Subhav Sinha

Subhav Sinha (born 14 January 1988, in Patna, Bihar) is an innovator who has developed a personal mobility battery operated vehicle called Personalised Mover - Mitra which was displayed at the 10th Auto Expo held at Pragati Maidan in New Delhi, INDIA. The vehicle is capable of carrying a single person which is considered to be useful particularly in airport corridors, institutional campuses

Fatty Acid Composition and Antioxidant Activity of Tea

Nov 08, 2011In the present study, supercritical carbon dioxide (SC-CO 2) extraction edible oil from tea seed was carried out, response surface methodology (RSM) was used to optimize processing parameters including time (20–90 min), temperature (35–45 C) and pressure (50–90 MPa). The fatty acid composition and antioxidant activity of the extracted


En este sentido cientficos del centro Nacional de Recursos Genticos Vegetales (NBPGR) de la India, han demostrado la existencia de caractersticas para repeler a los mosquitos en el geranio /br /En los ltimos aos han aparecido en el mercado diferentes productos de aplicacin tpica en los perros encaminados a la interceptacin de la picadura de los flebotomos.

Carbon nanotube radio

The S-parameters of a transistor can be directly measured using a network analyzer. From the S-parameters all other relevant RF parameters, including Z, Y, and H parameters, can be calculated. For example, the widely used hybrid parameters (H-parameters) can be retrieved from the S-parameters, in which the most important parameter h 21 is given by

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Hepatoprotective Effects of Paramylon, a β

Paramylon is a β-(1-3)-D-glucan isolated from Euglena gracilis Z.This study was designed to evaluate the protective effects of paramylon on liver injury induced by carbon tetrachloride (CCl 4) in rats.Wistar stain male rats were orally administered paramylon (500, 1,000 and 2,000 mg/kg body weight) before treatment with a single intraperitoneal dose of 50% CCl 4 (2 ml/kg body weight).

The Use of Carbon Nanotubes to Reinforce 45S5 Bioglass

Bioglass has been used for bone-filling material in bone tissue engineering, but its lean mechanical strength limits its applications in load-bearing positions. Carbon nanotubes (CNTs), with their high aspect ratio and excellent mechanical properties, have the potential to strengthen and toughen bioactive glass material without offsetting its bioactivity. Therefore, in this research, multiwall

Initial report on methane and carbon dioxide emission

Sep 01, 2017Among the parameters measured were CH4 and CO2 emissions, as well their dissolved concentrations in the water column, which were determined with high spatial resolution. No ebullition was observed and the CH4 flux ranged from 0.0094 to 4.47mmolm-2d-1 while the CO2 flux ranged from -22.95 to 35.68mmolm-2d-1.

Characterization of Multiwalled Carbon Nanotubes

Biomedical application potentials of carbon nanotubes-based materials have been investigated intensively in recent years; however, characterization and metrology are still facing great technical challenges when the materials are intended to be used as carriers for therapeutics in aqueous solutions. Systematic characterization on the dispersing carbon nanotubes is urgently required and

The One

This paper reports the preparation of green-emissioned CDs by a one-step hydrothermal route with DL-malic acid and ethylenediamine as raw materials and further explored the impacts of the amount of reactants, the reaction time, and temperature upon the optical properties of prepared CDs, to select the optimal preparation parameters. The optical properties, surface groups, and element

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