Log in

Relevant bibliographies by topics / DME/DME / Journal articles

To see the other types of publications on this topic, follow the link: DME/DME.

Journal articles on the topic 'DME/DME'

Author: Grafiati

Published: 30 May 2022

Last updated: 31 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'DME/DME.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Ostroumov, I. V. "DME/DME AND VOR/DME POSITIONING ERRORS ESTIMATION." Системи управління, навігації та зв’язку. Збірник наукових праць 1, no. 47 (2018): 12–16. http://dx.doi.org/10.26906/sunz.2018.1.012.

Full text

Abstract:

Currently, area navigation methods are used as alternative to Global Navigation Satellite System. The most popular alternative method of positioning is grounded on the usage of Distanse Measuring Equipment data in the algorithms of an aircraft Flight Management System. Estimation of aircraft position error is one of the most important tasks of navigation. An article considers the problem of positioning errors estimation by DME equipment. In accordance with the international requirements for the airborne equipment of civil aircraft, the problem is considered in terms of optimal DME pair usage.

APA, Harvard, Vancouver, ISO, and other styles

2

Didierjean-Jouveau, Claude. "DME, vous avez dit DME ?" Spirale N° 104, no. 4 (2023): 66–69. http://dx.doi.org/10.3917/spi.104.0066.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Hey-Hawkins, Evamarie, and Hans Georg von Schnering. "Synthese und Kristallstruktur von MoCl4(DME) · 15-Krone-5 und MoCl4(DME) (DME = 1,2-Dimethoxyethan) / Synthesis and Crystal Structure of MoCl4(DME) · 15-Crown-5 and MoCl4(DME) (DME = 1,2-Dimethoxyethane)." Zeitschrift für Naturforschung B 46, no. 3 (1991): 307–14. http://dx.doi.org/10.1515/znb-1991-0310.

Full text

Abstract:

NaSi reacts with MoCl5 and 15-crown-5 in toluene with reduction of Mo(V) to Mo(IV). Work-up in DME yields MoCl4(DME)· 15-crown-5 (1). MoCl4(DME) (2) is prepared more conveniently from MoCl5/DME. 1 and 2 were characterized spectroscopically and by X-ray structure determination. Crystal data: 1, space group P212121 (No. 19), Z = 4, 2765 observed independent reflexions, R = 0.026, cell dimensions (110 K): a = 16.292(4), b = 12.884(3), c = 10.452(2) Å. 2, space group I4̄2d (No. 122), Z = 8, 558 observed independent reflexions, R = 0.037, cell dimensions (292 K): a = b = 9.562(2), c = 23.777(6)Å. T

APA, Harvard, Vancouver, ISO, and other styles

4

Tsao, Chung-wen Albert, and Cheng-kok Koh. "UST/DME." ACM Transactions on Design Automation of Electronic Systems 7, no. 3 (2002): 359–79. http://dx.doi.org/10.1145/567270.567271.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

KIM, JUDY E., JOHN S. POLLACK, DAVID G. MILLER, ROBERT A. MITTRA, and RICHARD F. SPAIDE. "ISIS-DME." Retina 28, no. 5 (2008): 735–40. http://dx.doi.org/10.1097/iae.0b013e318163194c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

ONO, Yoshitaka, Takehiro TAKAHASHI, and Toshio SHUDO. "HCCI Combustion of DME and DME-Reformed Gas." Proceedings of thermal engineering conference 2002 (2002): 447–48. http://dx.doi.org/10.1299/jsmeptec.2002.0_447.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Basak, Jayanta Kumar, Waqas Qasim, Frank Gyan Okyere, et al. "Mitigating chilling stress of pepper plant (Capsicum annuum L.) using Dimethyl Ether combustion gas in controlled greenhouse." DECEMBER 2019, no. 13(12):2019 (December 20, 2019): 1992–2002. http://dx.doi.org/10.21475/ajcs.19.13.12.p1975.

Full text

Abstract:

In this study, the possibility of enhancing chilling stress tolerance of pepper plant (Capsicum annuum Linnaeus) during early growth stages was investigated using DME combustion gas in controlled greenhouse. The experiment was conducted to determine the performance of DME combustion gas when used as a fuel for DME burner for raising temperature and CO2 concentration in greenhouse and also to examine its effects on morphology parameters of hot pepper in winter season. To analyze the relationship between the application of DME and morphology parameters of pepper plant, three treatments (DME-1, D

APA, Harvard, Vancouver, ISO, and other styles

8

Yao, M., J. Qin, and Z. Zheng. "Numerical study of the combustion mechanism of a homogeneous charge compression ignition engine fuelled with dimethyl ether and methane, with a detailed kinetics model. Part 2: the reaction kinetics of dimethyl ether and methane dual-fuel." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 219, no. 10 (2005): 1225–36. http://dx.doi.org/10.1243/095440705x34829.

Full text

Abstract:

A numerical study was carried out using a zero-dimensional detailed chemical kinetics model to investigate the chemical reaction phenomena encountered in the homogeneous charge compression ignition process of a dimethyl ether (DME) and methane dual-fuel mixture. The results show that the heat release of DME/methane dual-fuel combustion is a typical two-stage process: the first stage is mainly associated with DME oxidation, and the second is mainly the result of methane oxidation. The low-temperature reaction (LTR) of DME is inhibited, the second molecular oxygen addition of DME is restrained,

APA, Harvard, Vancouver, ISO, and other styles

9

Frost, Jennifer M., M. Yvonne Kim, Guen Tae Park, et al. "FACT complex is required for DNA demethylation at heterochromatin during reproduction in Arabidopsis." Proceedings of the National Academy of Sciences 115, no. 20 (2018): E4720—E4729. http://dx.doi.org/10.1073/pnas.1713333115.

Full text

Abstract:

The DEMETER (DME) DNA glycosylase catalyzes genome-wide DNA demethylation and is required for endosperm genomic imprinting and embryo viability. Targets of DME-mediated DNA demethylation reside in small, euchromatic, AT-rich transposons and at the boundaries of large transposons, but how DME interacts with these diverse chromatin states is unknown. The STRUCTURE SPECIFIC RECOGNITION PROTEIN 1 (SSRP1) subunit of the chromatin remodeler FACT (facilitates chromatin transactions), was previously shown to be involved in the DME-dependent regulation of genomic imprinting in Arabidopsis endosperm. Th

APA, Harvard, Vancouver, ISO, and other styles

10

Kim, Euiho. "Analysis of DME/DME Navigation Performance and Ground Network Using Stretched-Front-Leg Pulse-Based DME." Sensors 18, no. 10 (2018): 3275. http://dx.doi.org/10.3390/s18103275.

Full text

Abstract:

Global navigation satellite systems (GNSS) have become a primary navigation means for aircraft. However, the signal power of GNSS is very weak, and its service can be disrupted at any time when there is interference or jamming. For this reason, the Federal Aviation Administration (FAA) in the United States has recently chosen a distance measuring equipment (DME)-based aircraft navigation technique, called DME/DME, as an alternative aircraft navigation means for use by around 2030. The reason that the FAA plans to use DME/DME in such a short duration, by around 2030, is presumed to be because t

APA, Harvard, Vancouver, ISO, and other styles

11

Zhu, Yuan-Zhang, Wen-Ying Wang, Qing-Yue Ma, et al. "Intravitreal injection of conbercept for diabetic macular edema complicated with diabetic nephropathy." International Journal of Ophthalmology 17, no. 2 (2024): 304–10. http://dx.doi.org/10.18240/ijo.2024.02.12.

Full text

Abstract:

AIM: To observe the therapeutic effect of conbercept on diabetic macular edema (DME) complicated with diabetic nephropathy (DN). METHODS: In this retrospective study, 54 patients (54 eyes) that diagnosed as DME from January 2017 to October 2021 were collected. The patients were divided into two groups: DME patients with DN (25 eyes), and DME patients without DN (29 eyes). General conditions were collected before treatment, laboratory tests include fasting blood glucose, HbA1c, microalbumin/creatinine, serum creatinine. Optical coherence tomography (OCT) was used to check the ellipsoidal zone (

APA, Harvard, Vancouver, ISO, and other styles

12

Chung, Yoo-Ri, Young Ho Kim, Seong Jung Ha, et al. "Role of Inflammation in Classification of Diabetic Macular Edema by Optical Coherence Tomography." Journal of Diabetes Research 2019 (December 20, 2019): 1–8. http://dx.doi.org/10.1155/2019/8164250.

Full text

Abstract:

Diabetic macular edema (DME) is the abnormal accumulation of fluid in the subretinal or intraretinal spaces in the macula in patients with diabetic retinopathy and leads to severely impaired central vision. Technical developments in retinal imaging systems have led to many advances in the study of DME. In particular, optical coherence tomography (OCT) can provide longitudinal and microstructural analysis of the macula. A comprehensive review was provided regarding the role of inflammation using OCT-based classification of DME and current and ongoing therapeutic approaches. In this review, we f

APA, Harvard, Vancouver, ISO, and other styles

13

Wahid, Abdul, and Tubagus Aryandi Gunawan. "PENGENDALIAN PROSES PURIFIKASI DME DAN METANOL PADA PABRIK DME DARI GAS SINTESIS." SINERGI 19, no. 1 (2015): 57. http://dx.doi.org/10.22441/sinergi.2015.1.010.

Full text

Abstract:

Pengembangan produksi DME (dimetil eter) sebagai energi alternatif yang ramah lingkungan sudah banyak dilakukan di negara-negara lain seperti Jerman, Belanda, Australia, Jepang, China dan Taiwan. Indonesia masih mengimpor DME untuk memenuhi seluruh kebutuhan industri dalam negeri, karena itu perlu didirikan pabrik pembuatan DME. Proses pembuatan DME secara indirect melibatkan sintesis metanol, dehidrasi metanol, purifikasi DME hingga purifikasi metanol untuk di recylce. Optimasi proses purifikasi DME dilakukan dengan mendapatkan kinerja pengendalian yang optimum pada proses purifikasi DME hing

APA, Harvard, Vancouver, ISO, and other styles

14

Niu, Kai, Baofeng Yao, Yonghong Xu, Hongguang Zhang, Zhicheng Shi, and Yan Wang. "Study on Chemical Kinetics Mechanism of Ignition Characteristics of Dimethyl Ether Blended with Small Molecular Alkanes." Energies 15, no. 13 (2022): 4652. http://dx.doi.org/10.3390/en15134652.

Full text

Abstract:

Dimethyl ether (DME)/C1-C4 alkane mixtures are ideal fuel for homogeneous charge compression ignition (HCCI) engines. The comparison of ignition delay and multi-stage ignition for DME/C1-C4 alkane mixtures can provide theoretical guidance for expanding the load range and controlling the ignition time of DME HCCI engines. However, the interaction mechanism between DME and C1-C4 alkane under engine relevant high-pressure and low-temperature conditions remains to be revealed, especially the comprehensive comparison of the negative temperature coefficient (NTC) and multi-stage ignition characteris

APA, Harvard, Vancouver, ISO, and other styles

15

Yuliarita, Emi, Zulkifliani Zulkifliani, Murachmad Dwi Atmanto, Djoko Sunarjanto, and Aziz Masykur Lubad. "KAJIAN PEMANFAATAN GAS DME (DIMETHYL ETHER) ATAU UJI TERAP PADA SEKTOR RUMAH TANGGA DI WILAYAH SUMATERA SELATAN." Lembaran publikasi minyak dan gas bumi 54, no. 2 (2020): 61–67. http://dx.doi.org/10.29017/lpmgb.54.2.499.

Full text

Abstract:

Kajian pemanfaatan gas Dimethyl Eter (DME) atau Uji Terapan telah dilakukan di kota Palembang, Muara Enim dan Tanjung Enim, Sumatera Selatan. Tujuan dilakukannya uji terap pemanfaatan gas DME dengan kompor khusus DME pada sektor rumah tangga guna mengetahui keberterimaan gas DME di masyarakat khususnya daerah Sumatera Selatan. Pemilihan wilayah tempat pelaksanaan uji terap terkait adanya program hilirisasi batu bara (Coal to DME) oleh PT. Bukit Asam. Metodologi yang dilakukan adalah survey kelayakan responden melalui pengisian kuisener yang sudah disiapkan, pemantauan/monitoring pemakian kompo

APA, Harvard, Vancouver, ISO, and other styles

16

Du, Shijie, and Qiongqiong Jia. "Performance analysis of DME multipath interference monitoring for APNT applications." Journal of Physics: Conference Series 2849, no. 1 (2024): 012020. http://dx.doi.org/10.1088/1742-6596/2849/1/012020.

Full text

Abstract:

Abstract In order to meet the application requirements of Performance Based Navigation (PBN) during the malfunction of the Global Navigation Satellite System (GNSS), the concept of Alternative Positioning Navigation and Timing (APNT) has been proposed. DME/DME navigation based on Distance Measuring Equipment (DME) is considered the most promising solution for APNT. However, the degradation of DME ranging accuracy due to multipath transmission makes the DME/DME navigation method unable to meet the performance requirements of PBN. Based on this, this paper analyzes the performance of Signal Qual

APA, Harvard, Vancouver, ISO, and other styles

17

Calderazzo, Fausto, Giuseppe E. De Benedetto, Ulli Engler, Isabella Ferri, Guido Pampaloni, and Trixie Wagner. "New Preparative Methods for the Halides of Titanium(II) and Vanadium(II): Reduction of Titanium(IV) Halides with Sodium and Oxidation of Bis(mesitylene)vanadium(0)." Zeitschrift für Naturforschung B 51, no. 4 (1996): 506–16. http://dx.doi.org/10.1515/znb-1996-0413.

Full text

Abstract:

Abstract TiCl4(THF)2 reacts with two equivalents of sodium in THF to afford the soluble TiCl2(THF)n (1), which has been characterized analytically and by spectroscopic and magnetic measurements. By redox reactions. TiCl2(THF)n gives TiCl2(9,10-C10H8O2) (2), or TiCl2(benzoate)2 .(3), with 9,10-phenanthrenequinone or dibenzoylperoxide in toluene, respectively. By operating in 1,2-dimethoxyethane (DME), Na(DME)1.5[TiCl4(DME)] (4), or NaTiCl3(DME)2 have been isolated from the reaction of TiCl4(DME) with one or two equivalents of sodium, respectively. From 4, by cation exchange, PPN[TiCl4(DME)] [PP

APA, Harvard, Vancouver, ISO, and other styles

18

Anggarani, Riesta, I. Made K. Dhiputra, Cahyo S. Wibowo, and Dimitri Rulianto. "TECHNOLOGY DEVELOPMENT ON THE USE OF DIMETHYL ETHER AS FUEL: A REVIEW (REVIEW PERKEMBANGAN TEKNOLOGI PEMANFAATAN DIMETHYL ETHER SEBAGAI BAHAN BAKAR)." Scientific Contributions Oil and Gas 40, no. 1 (2018): 41–51. http://dx.doi.org/10.29017/scog.40.1.37.

Full text

Abstract:

Researchers have started focusing their research on alternative fuels. During the last two decades, Dimethyl Ether (DME) has emerged as a new potential fuel to substitute for oil and its derivatives. Raw materials for DME from sources such as coal, biomass, natural gas and also crude oil are spread all over the world so the interest is growing for using it as an energy source. While the technology for processing raw materials into DME is well established, the technology for DME applications for a wide range of usages is still being developed. The range of DME usage includes for automotive purp

APA, Harvard, Vancouver, ISO, and other styles

19

Ruiz-Gutiérrez, A., P. Rebollo, and M. U. Alzueta. "Combustion of NH3/DME and NH3/DME/NO mixtures." Fuel 381 (February 2025): 133253. http://dx.doi.org/10.1016/j.fuel.2024.133253.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Pegoraro, Mirko, Bettina Fishman, Valeria Zonato, et al. "Photoperiod-Dependent Expression of MicroRNA in Drosophila." International Journal of Molecular Sciences 23, no. 9 (2022): 4935. http://dx.doi.org/10.3390/ijms23094935.

Full text

Abstract:

Like many other insects in temperate regions, Drosophila melanogaster exploits the photoperiod shortening that occurs during the autumn as an important cue to trigger a seasonal response. Flies survive the winter by entering a state of reproductive arrest (diapause), which drives the relocation of resources from reproduction to survival. Here, we profiled the expression of microRNA (miRNA) in long and short photoperiods and identified seven differentially expressed miRNAs (dme-mir-2b, dme-mir-11, dme-mir-34, dme-mir-274, dme-mir-184, dme-mir-184*, and dme-mir-285). Misexpression of dme-mir-2b,

APA, Harvard, Vancouver, ISO, and other styles

21

Stockwell, Amy D., Michael C. Chang, Anubha Mahajan, et al. "Multi-ancestry GWAS analysis identifies two novel loci associated with diabetic eye disease and highlights APOL1 as a high risk locus in patients with diabetic macular edema." PLOS Genetics 19, no. 8 (2023): e1010609. http://dx.doi.org/10.1371/journal.pgen.1010609.

Full text

Abstract:

Diabetic retinopathy (DR) is a common complication of diabetes. Approximately 20% of DR patients have diabetic macular edema (DME) characterized by fluid leakage into the retina. There is a genetic component to DR and DME risk, but few replicable loci. Because not all DR cases have DME, we focused on DME to increase power, and conducted a multi-ancestry GWAS to assess DME risk in a total of 1,502 DME patients and 5,603 non-DME controls in discovery and replication datasets. Two loci reached GWAS significance (p<5x10-8). The strongest association was rs2239785, (K150E) in APOL1. The second f

APA, Harvard, Vancouver, ISO, and other styles

22

Whitehill, Tara L., Alice S. Y. Lee, and Joyce C. Chun. "Direct Magnitude Estimation and Interval Scaling of Hypernasality." Journal of Speech, Language, and Hearing Research 45, no. 1 (2002): 80–88. http://dx.doi.org/10.1044/1092-4388(2002/006).

Full text

Abstract:

Hypernasality is most commonly assessed using equal-appearing interval (EAI) scaling. Recently, the validity of EAI scaling for the evaluation of hypernasality has been questioned. The issue of validity rests on the psychophysical nature of the dimension to be rated. The purpose of this study was to compare EAI scaling with direct magnitude estimation (DME), in order to determine whether EAI scaling is a valid procedure for the evaluation of hypernasality. Connected speech samples from 20 individuals with repaired cleft palate and hypernasality were used. Twenty listeners undertook the listeni

APA, Harvard, Vancouver, ISO, and other styles

23

Fujiyama, Shinjiro, Shintaro Seino, Natsumi Kamiya, Koji Nishi, and Yoshinobu Yokomori. "Adsorption structure of dimethyl ether on silicalite-1 zeolite determined using single-crystal X-ray diffraction." Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials 70, no. 5 (2014): 856–63. http://dx.doi.org/10.1107/s2052520614015911.

Full text

Abstract:

The adsorption structures of dimethyl ether (DME) on silicalite-1 zeolite (MFI-type) are determined using single-crystal X-ray diffraction. The structure of low-loaded DME-silicalite-1 indicates that all DME molecules are located in the sinusoidal channel, which is the most stable sorption site based on the van der Waals interaction between DME and the framework. The configuration of guest molecules (linear or bent) plays an important role in determining where the stable sorption site is in the pore system of MFI-type zeolites. Bent molecules favor the sinusoidal channel, while linear molecule

APA, Harvard, Vancouver, ISO, and other styles

24

Yang, Min, Maojie Chai, Rundong Qi, Zhangxin Chen, Linyang Zhang, and Xinran Yu. "Dimethyl Ether as a Novel Solvent for Bitumen Recovery: Mechanisms of Improved Mass Transfer and Energy Efficiency." SPE Journal 27, no. 02 (2021): 1321–40. http://dx.doi.org/10.2118/208615-pa.

Full text

Abstract:

Summary A solvent-based thermal recovery process has the advantages of low capital expenditure, less energy consumption, and less greenhouse gas emission. Dimethyl ether (DME), as a renewable solvent, has been considered as a novel additive in the thermal bitumen recovery process. Being soluble in both water and oil phases, DME has the potential to enhance mass transfer and improve oil production. In this work, a phase behavior model of the DME-bitumen-water system is first developed considering DME partitioning between oil and water. A field-scale numerical simulation model with fine gridbloc

APA, Harvard, Vancouver, ISO, and other styles

25

Tristiantoro, Roby, Usman Umar, and Risnawaty Alyah. "Simulation Model Design of VHF Omni-Directional Range (VOR) Based on Microcontroller." Jurnal Teknologi Elekterika 21, no. 1 (2024): 1–8. http://dx.doi.org/10.31963/elekterika.v21i1.4754.

Full text

Abstract:

The process of giving directional information to assist airplanes in making an accurate landing at the airport of destination is known as aviation navigation. The VHF Omnidirectional Range is a crucial navigation tool for guiding planes to the airport (VOR). Since it costs a lot of money to learn how to fly an airplane, a VOR simulator was developed that can mimic the movement of an aircraft passing through the VOR. The simulation that was produced is a prototype that sends and receives signals to the aircraft utilizing an antenna and microcontroller as supporting hardware. The VOR/DME flight

APA, Harvard, Vancouver, ISO, and other styles

26

Zhao, Jiawei, Weiye Zhu, Xiao Cui, et al. "Visual Outcome after Anti-Vascular Epithelial Growth Factor Therapy Using New Classification of Diabetic Macular Edema by Optical Coherence Tomography." Ophthalmic Research 67, no. 1 (2024): 499–505. http://dx.doi.org/10.1159/000539606.

Full text

Abstract:

Introduction: The aim of the study was to examine alterations in visual acuity in patients with diabetic macular edema (DME), classified according to the TCED-HFV optical coherence tomography (OCT) system, following anti-vascular epithelial growth factor (VEGF) therapy. Methods: The medical records of patients with DME receiving anti-VEGF therapy were retrospectively reviewed. Patients were divided into four groups according to the TCED-HFV OCT classification. Patient demographic and clinical characteristics and best-corrected visual acuity (BCVA) before and after treatment were compared among

APA, Harvard, Vancouver, ISO, and other styles

27

Maymuchar, Maymuchar. "Karakteristik Pembakaran Campuran LPG – DME pada Mesin Pembangkit Listrik Kapasitas 5 KVA." Lembaran publikasi minyak dan gas bumi 48, no. 3 (2014): 171–76. http://dx.doi.org/10.29017/lpmgb.48.3.1222.

Full text

Abstract:

Dimethyl ether (DME) merupakan salah satu energi alternatif yang potensial untuk menggantikan LPG dimasa yang akan datang baik untuk rumah tangga maupun pembangkit listrik. Kemiripan karakteristik DME dengan LPG memungkinkan DME dapat dicampur dengan LPG sebagai bahan bakar mesin pembangkit listrik. Pengujian telah dilakukan pada mesin terhadap beberapa variasi campuran LPG - DME yaitu 10%, 20% dan 30% DME dengan kondisi pembebanan 500 - 4500 watt. Pengamatan dilakukan terhadap emisi CO, CO2 dan HC untuk menganalisis pembakaran yang terjadi dalam ruang bakar mesin pembangkit. Emisi CO dan HC y

APA, Harvard, Vancouver, ISO, and other styles

28

Mutalikdesai, Jagruti, K. C. Dhaniba, Supriya Choudhary, Promila Verma, and Rhythm Bains. "Management of subgingival proximal defects." Asian Journal of Oral Health and Allied Sciences 14 (October 28, 2024): 15. http://dx.doi.org/10.25259/ajohas_10_2024.

Full text

Abstract:

Deep proximal cavities can be progressively elevated by a restorative procedure known as deep margin elevation (DME), which improves margins for either direct or indirect restorations. Dietschi and Spreafico (1998) introduced the non-surgical alternative procedure of DME for crown lengthening. Other names for the DME concept include “coronal margin relocation,” “proximal box elevation,” and “cervical margin relocation.” A DME treatment’s therapeutic effectiveness depends on a proper indication, and its clinical efficacy is largely dependent on how well the DME is adjusted. In addition to maint

APA, Harvard, Vancouver, ISO, and other styles

29

Ga, Bui Van, and Pham Quoc Thai. "Soot Emission Reduction in a Biogas-DME Hybrid Dual-Fuel Engine." Applied Sciences 10, no. 10 (2020): 3416. http://dx.doi.org/10.3390/app10103416.

Full text

Abstract:

Combustion characteristics and harmful emissions with emphasized soot emission in the new concept of a biogas-dimethyl ether (DME) hybrid dual-fuel engine were analyzed. The effects of DME content, biogas compositions and diesel injection were examined. At any biogas composition, a rise in DME content in the fuel mixture leads to an increase in indicative engine cycle work (Wi) and NOx but a decrease in CO and soot volume fraction (fv). The effects of DME on Wi and soot volume fraction are more significant for poor biogas than for rich biogas, contrary to its effect tendency on CO and NOx conc

APA, Harvard, Vancouver, ISO, and other styles

30

Zhang, Jingfa, Jingxiang Zhang, Chaoyang Zhang, et al. "Diabetic Macular Edema: Current Understanding, Molecular Mechanisms and Therapeutic Implications." Cells 11, no. 21 (2022): 3362. http://dx.doi.org/10.3390/cells11213362.

Full text

Abstract:

Diabetic retinopathy (DR), with increasing incidence, is the major cause of vision loss and blindness worldwide in working-age adults. Diabetic macular edema (DME) remains the main cause of vision impairment in diabetic patients, with its pathogenesis still not completely elucidated. Vascular endothelial growth factor (VEGF) plays a pivotal role in the pathogenesis of DR and DME. Currently, intravitreal injection of anti-VEGF agents remains as the first-line therapy in DME treatment due to the superior anatomic and functional outcomes. However, some patients do not respond satisfactorily to an

APA, Harvard, Vancouver, ISO, and other styles

31

Mitsch, Michael J., Alison Cowie, and Turlough M. Finan. "Malic Enzyme Cofactor and Domain Requirements for Symbiotic N2 Fixation by Sinorhizobium meliloti." Journal of Bacteriology 189, no. 1 (2006): 160–68. http://dx.doi.org/10.1128/jb.01425-06.

Full text

Abstract:

ABSTRACT The NAD+-dependent malic enzyme (DME) and the NADP+-dependent malic enzyme (TME) of Sinorhizobium meliloti are representatives of a distinct class of malic enzymes that contain a 440-amino-acid N-terminal region homologous to other malic enzymes and a 330-amino-acid C-terminal region with similarity to phosphotransacetylase enzymes (PTA). We have shown previously that dme mutants of S. meliloti fail to fix N2 (Fix−) in alfalfa root nodules, whereas tme mutants are unimpaired in their N2-fixing ability (Fix+). Here we report that the amount of DME protein in bacteroids is 10 times grea

APA, Harvard, Vancouver, ISO, and other styles

32

Zhang, Changqing, Yu-Hung Hung, Hyun Jung Rim, et al. "The catalytic core of DEMETER guides active DNA demethylation in Arabidopsis." Proceedings of the National Academy of Sciences 116, no. 35 (2019): 17563–71. http://dx.doi.org/10.1073/pnas.1907290116.

Full text

Abstract:

The Arabidopsis DEMETER (DME) DNA glycosylase demethylates the maternal genome in the central cell prior to fertilization and is essential for seed viability. DME preferentially targets small transposons that flank coding genes, influencing their expression and initiating plant gene imprinting. DME also targets intergenic and heterochromatic regions, but how it is recruited to these differing chromatin landscapes is unknown. The C-terminal half of DME consists of 3 conserved regions required for catalysis in vitro. We show that this catalytic core guides active demethylation at endogenous targ

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Zhenhua, Wenping Zhang, Yanan Sun, Mudi Yao, and Biao Yan. "Detection of Diabetic Macular Edema in Optical Coherence Tomography Image Using an Improved Level Set Algorithm." BioMed Research International 2020 (April 30, 2020): 1–7. http://dx.doi.org/10.1155/2020/6974215.

Full text

Abstract:

Diabetic macular edema (DME) is a major cause of visual loss in the patients with diabetic retinopathy. DME detection in Optical Coherence Tomography (OCT) image contributes to the early diagnosis of diabetic retinopathy and blindness prevention. Currently, DME detection in the OCT image mainly relies on the handwork by the experienced clinician. It is a laborious, time-consuming, and challenging work to organize a comprehensive DME screening for diabetic patients. In this study, we proposed a novel algorithm for the detection and segmentation of DME region in OCT image based on the K-means cl

APA, Harvard, Vancouver, ISO, and other styles

34

Li, Genbao, Longbao Zhou, Shenghua Liu, and Keyu Pan. "Experimental study on vapour pressure of dimethyl ether blended in diesel oil." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 221, no. 7 (2007): 889–92. http://dx.doi.org/10.1243/09544070jauto477.

Full text

Abstract:

Experiments have been conducted to determine the vapour pressure of dimethyl ether (DME) blended in diesel oil in a thermophysical property measurement system with high accuracy. Based on previous research on the viscosity of DME blends, three blends at 10, 20, and 30 wt% DME in diesel oil were chosen for this study. Experimental results indicate that DME can be soluble in diesel oil at room temperature. The vapour pressure of blends is lower than that of pure DME at a certain temperature and decreases with increase in diesel oil in DME, which helps to eliminate vapour lock in the fuel supply

APA, Harvard, Vancouver, ISO, and other styles

35

Bock, Hans, K. Gharagozloo-Hubmann, and M. Sievert. "Wechselwirkungen in Molekülkristallen, 160 [1,2]. Kristallzüchtung und Strukturbestimmung der verschiedenartigen Polyphenyl-Kontaktionenmultipel [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2 / Interaction in Molecular Crystals, 160 [1, 2]. Crystallization and Structure Determination of the Different Polyphenyl Contact Ion Multiples [p-Quaterphenylee⊖⊖][Na⊕(DME)3]2, [p-Quaterphenyl⊖⊖(Na⊕(THF)3)2] und [p-Terphenyl⊖⊖Na⊕(DME)2Na⊕(DME)]2." Zeitschrift für Naturforschung B 55, no. 12 (2000): 1103–13. http://dx.doi.org/10.1515/znb-2000-1201.

Full text

Abstract:

The π-hydrocarbons p-terphenyl and p-quaterphenyl are reduced to their dianions in aprotic solutions of different ethers at sodium metal mirrors. Single crystal structure determinations of the solvent-separated or solvens-shared contact ion multiples, [p-terphenyl⊖⊖ Na⊕(DME)2Na⊕DME]2, p-quaterphenyl⊖⊖ ][Na⊕(DME)3]2 and [p-quaterpheny⊖⊖( Na⊕(THF)3)2], prove the essential cation solvation by the chelating dimethoxyethane (DME) versus the bulky tetrahydrofuran (THF) ligands: The solution network of equilibria between solvent separated and solvent shared ion aggregates can be considerably and tran

APA, Harvard, Vancouver, ISO, and other styles

36

Khairul Nizam, Nurul Aina Syahirah, Nurina Adriana Abdul Razak, Nur Hidayati Othman, et al. "Prospect of Direct Dimethyl Ether Production from CO2: Reactor Design Development." Malaysian Journal of Fundamental and Applied Sciences 19, no. 2 (2023): 280–98. http://dx.doi.org/10.11113/mjfas.v19n2.2841.

Full text

Abstract:

The increasing emissions of carbon dioxide (CO2) and volatile hydrocarbons via burning of fossil fuels result in a significant amount of global warming and air pollution. With the concern over the impact of fossil fuel to the environment, the interest in alternative fuel production from the CO2 generated through utilization of new technologies has risen rapidly. Several clean alternative fuels, including dimethyl ether (DME) have been investigated for a more sustainable and greener environment. DME has a high cetane number but produces much lower NOx emission upon combustion. DME is typically

APA, Harvard, Vancouver, ISO, and other styles

37

Zhu, Huishan, Jie Ji, Jian-Wei Lin, et al. "Development and validation of a 3-D deep learning system for diabetic macular oedema classification on optical coherence tomography images." BMJ Open 15, no. 5 (2025): e099167. https://doi.org/10.1136/bmjopen-2025-099167.

Full text

Abstract:

ObjectivesTo develop and validate an automated diabetic macular oedema (DME) classification system based on the images from different three-dimensional optical coherence tomography (3-D OCT) devices.DesignA multicentre, platform-based development study using retrospective and cross-sectional data. Data were subjected to a two-level grading system by trained graders and a retina specialist, and categorised into three types: no DME, non-centre-involved DME and centre-involved DME (CI-DME). The 3-D convolutional neural networks algorithm was used for DME classification system development. The dee

APA, Harvard, Vancouver, ISO, and other styles

38

Rathod, Ketan, George J. Manayath, and Venkatapathy Narendran. "Current perspectives in the management of diabetic macular edema." Haryana Journal of Ophthalmology XVI, no. 2 (2024): 113–22. https://doi.org/10.4103/hjoo.hjoo_10_24.

Full text

Abstract:

Diabetic macular edema (DME) is the leading cause of vision impairment in diabetic patients and is a major cause of blindness worldwide in the working age adults. The pathogenesis is still not well understood. Vascular endothelial growth factor (VEGF) is known to play a major role in the pathogenesis of DME. Currently, intravitreal injection of anti-VEGF agents remains as the first-line therapy in DME treatment due to the favorable anatomic and functional outcomes. Despite this, around 30% of the patients have persistent DME even after multiple anti-VEGF injections. This suggests that various

APA, Harvard, Vancouver, ISO, and other styles

39

Neroev, V. V., N. B. Chesnokova, O. A. Kost, et al. "Bradykinin and angiotensin-converting enzyme in serum of patients with diabetic retinopathy and the prognosis of diabetic macular edema development (pilot study)." Problems of Endocrinology 67, no. 4 (2021): 13–19. http://dx.doi.org/10.14341/probl12762.

Full text

Abstract:

BACKGROUND. Diabetic macular edema (DME) is a microvascular complication of diabetic retinopathy. One of the key roles in the pathogenesis of DME may belong to the components of rennin-angiotensin and kallikrein-kinin systems: bradykinin (Bk) and angiotensin-converting enzyme (ACE).PURPOSE. To determine the Bk and ACE concentration and ACE activity in serum of patients with proliferative diabetic retinopathy (PDR) and to estimate the significance of these parameters for the early diagnostic and prognosis of DMO.MATERIALS AND METHODS. Serum was collected from the 2 groups of patients with II ty

APA, Harvard, Vancouver, ISO, and other styles

40

Jiang, Li, He Cao, Tingming Deng, et al. "Serum exosomal miR-377-3p inhibits retinal pigment epithelium proliferation and offers a biomarker for diabetic macular edema." Journal of International Medical Research 49, no. 4 (2021): 030006052110029. http://dx.doi.org/10.1177/03000605211002975.

Full text

Abstract:

Objectives Diabetic macular edema (DME) is a complication of diabetes mellitus that leads to diabetic retinopathy. Thus far, the role of serum exosomal microRNAs (miRNAs) in DME progression remains elusive. This study investigated serum exosomal miRNAs from patients with type 2 diabetes (T2D) and DME to identify miRNAs associated with expression of vascular endothelial growth factor (VEGF), a pivotal component in DME progression; it also evaluated the diagnostic values of these miRNAs for DME. Methods Serum was collected from patients with T2D who did (n = 20) and did not have DME (n = 24). Ex

APA, Harvard, Vancouver, ISO, and other styles

41

Petrella, Robert J., Julie Blouin, Brian Davies, and Martin Barbeau. "Prevalence, Demographics, and Treatment Characteristics of Visual Impairment due to Diabetic Macular Edema in a Representative Canadian Cohort." Journal of Ophthalmology 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/159167.

Full text

Abstract:

Diabetic macular edema (DME) is the leading cause of blindness in the diabetic population. However, there is limited understanding of the epidemiology of DME with visual impairment (VI) and treatment in patients with diabetes in Canada. This observational, retrospective study used records from the Southwestern Ontario database to observe the demographics, prevalence, and treatment characteristics of VI due to DME compared to a healthy population in a real-world Canadian setting. Data was compared between a cohort of 8,368 diabetic (type 1 or 2) patients, who were ≥18 years old and had a diagno

APA, Harvard, Vancouver, ISO, and other styles

42

Padilla, Widya Putri Nur, Windy Hermawan Mitrakusuma, Bowo Yuli Prasetyo, and Sri Murniati. "Perbandingan Kinerja Sistem Refrigerasi Kompresi Uap menggunakan Refrigeran Dimethyl Ether (DME) dan R134a." Prosiding Industrial Research Workshop and National Seminar 14, no. 1 (2023): 344–48. http://dx.doi.org/10.35313/irwns.v14i1.5410.

Full text

Abstract:

Refrigeran R134a mengandung Hydrofluorocarbon (HFC) dengan nilai Global Warming Potential (GWP) sebesar 1430 perlu dicarikan alternatif pengganti dengan karakteristik yang serupa, di antaranya Dimethyl Ether (DME/RE170). Penelitian ini bertujuan untuk membandingkan refrigeran R134a dengan DME dengan melakukan simulasi pada sistem refrigerasi kompresi uap menggunakan software Reference Fluid and Transport Properties (REFPROP) versi 10.0.0.98 dengan variasi temperatur kondensasi, temperatur evaporasi, subcooled, superheated, efisiensi isentropik dan penggunaan Liquid to Suction Heat Exchanger (L

APA, Harvard, Vancouver, ISO, and other styles

43

Ashkenazi, V., C. J. Hill, T. Moore, et al. "The Use of Airborne Differential GPS to Detect Coordinate and Calibration Errors in DME Navigation Aids." Journal of Navigation 48, no. 1 (1995): 1–12. http://dx.doi.org/10.1017/s0373463300012455.

Full text

Abstract:

In May 1993, in support of Eurocontrol's WGS 84 Implementation Programme, a project was undertaken to assess the accuracy of navigation aid coordinates. The exercise involved flying a route over a number of European countries, in an aircraft which was equipped for multi-DME ‘data puddle’ position updating, and which also carried Global Positioning System (GPS) receivers. This test flight, carried out under contract to Eurocontrol, involved two parties, namely the Defence Research Agency (DRA) Bedford, who provided the airborne trials facility and DME data, and the Institute of Engineering Surv

APA, Harvard, Vancouver, ISO, and other styles

44

Lorenz, Volker, Bernhard Neumüller, and Karl-Heinz Thiele. "Synthese und Kristallstrukturen von Diazadien-Komplexen der Erdalkalimetalle / Syntheses and Crystal Structures of Diazadiene Complexes of the Alkaline Earth Metals." Zeitschrift für Naturforschung B 50, no. 1 (1995): 71–75. http://dx.doi.org/10.1515/znb-1995-0114.

Full text

Abstract:

(DME)2] 1 (R = C6H4-4-CH3; DME = dimethoxyethane) was prepared by reaction of calcium with NR=CPh-CPh=NR in DME solution. The compound forms orange, moisture sensitive crystals, which were characterized by an X-ray structure determination [space group orthorhombic, P212121, Z = 4, 4634 observed unique reflections, R = 0.046; lattice dimensions at –70 °C: a = 1340.2(3), b = 1528.1(3), c = 1609.1(3) pm]. The calcium atom is coordinated by the four oxygen atoms of two chelating DME molecules and two nitrogen atoms of the diazadiene ligand, bonded in its enediamide form.[Ba2(DME)3(NPh–CPh=CPh–NPh)

APA, Harvard, Vancouver, ISO, and other styles

45

Fayzrakhmanov, R. R., M. M. Shishkin, E. O. Shatalova, and A. V. Suhanova. "Early Switch from anti-VEGF Therapy to Dexamethasone Implant in Diabetic Macular Edema." Fyodorov journal of ophthalmic surgery, no. 4 (December 29, 2020): 86–92. http://dx.doi.org/10.25276/0235-4160-2020-4-86-92.

Full text

Abstract:

Diabetic retinopathy (DR) is the one of severe complications of diabetes, associated with macular edema (DME), which is the main course of visual acuity loss in diabetic patients. The main pathological factors in diabetic retinopathy and diabetic macular edema (DME) are the inflammation and increasing of vascular endothelium growth factor activity (VEGF). The treatment of DME remains challenging during the times. We know that not all eyes respond optimally to anti-VEGF therapy. No clinical effect or minimal one among patients with persistent DME has led to an urgent need to develop new treatme

APA, Harvard, Vancouver, ISO, and other styles

46

Kanda, Hideki, Kaito Kusumi, Li Zhu та Tao Wang. "Direct Extraction of Lipids, β-Carotene, and Polyphenolic Compounds from Wet Microalga Dunaliella salina by Liquefied Dimethyl Ether". Marine Drugs 22, № 10 (2024): 438. http://dx.doi.org/10.3390/md22100438.

Full text

Abstract:

Extraction of lipids and high-value products from highly wet microalgae requires significant energy for the drying pretreatment. In this study, we examined the direct extraction of lipids, β-carotene, and polyphenolic compounds from wet Dunaliella salina using liquefied dimethyl ether (DME), which is effective in lipid extraction for biofuel production. The amount of DME-extracted β-carotene was 7.0 mg/g, which was higher than that obtained from the chloroform–methanol extraction. Moreover, the total phenolic content extracted with DME and its antioxidant capacity were slightly higher than tho

APA, Harvard, Vancouver, ISO, and other styles

47

Wang, Hai Jun, Xu Hua Ren, and Ji Xun Zhang. "Deformation Memory Effect Identification Using Fractal Dimension in the Stress Region above Crack Initiation Threshold." Applied Mechanics and Materials 90-93 (September 2011): 2332–38. http://dx.doi.org/10.4028/www.scientific.net/amm.90-93.2332.

Full text

Abstract:

Deformation memory effect (DME) is one of the rock memory effects. One important application of the DME is to determine the in situ stress. The in situ stress measurement methods based on the DME are commercial and permit large number of measurements. Application of DME needs the reliable and effective identification methods to detect the DME. However, the existing identification methods are insufficient and not distinct. In this paper, a new method based on fractal dimension was proposed. It takes advantage of the increase of the irregularity of the stress-strain curve after the previous maxi

APA, Harvard, Vancouver, ISO, and other styles

48

van, Kampen Jasper, Jurriaan Boon, Jaap Vente, and Sint Annaland Martin van. "Sorption enhanced dimethyl ether synthesis for high efficiency carbon conversion: Modelling and cycle design." Journal of CO2 Utilization 37 (April 1, 2020): 295–308. https://doi.org/10.1016/j.jcou.2019.12.021.

Full text

Abstract:

Dimethyl ether is one of the most promising alternative fuels under consideration worldwide. Both the conventional indirect DME synthesis and the improved direct DME synthesis process are constrained by thermodynamics, which results in limited product yield, extensive separations and large recycle streams. Sorption enhanced DME synthesis is a novel process for the production of DME. The in situ removal of H<sub>2</sub>O ensures that the oxygen surplus of the feed no longer ends up in CO2 as is the case for direct DME synthesis. As a result CO<sub>2</sub> can be converted directly to DME with h

APA, Harvard, Vancouver, ISO, and other styles

49

YABUKI, Katsushige, and Shigeharu KOBORI. "3110 Explosion Limits of DME-Air and DME-O2 Premixture." Proceedings of the JSME annual meeting 2005.3 (2005): 59–60. http://dx.doi.org/10.1299/jsmemecjo.2005.3.0_59.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Hashemi, Hamid, Jakob M. Christensen, and Peter Glarborg. "High-pressure pyrolysis and oxidation of DME and DME/CH4." Combustion and Flame 205 (July 2019): 80–92. http://dx.doi.org/10.1016/j.combustflame.2019.03.028.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!