Log in

Relevant bibliographies by topics / GCMS analysis / Journal articles

To see the other types of publications on this topic, follow the link: GCMS analysis.

Journal articles on the topic 'GCMS analysis'

Author: Grafiati

Published: 3 June 2025

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 'GCMS analysis.'

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

Wang, Xiao-Dan, Shuai Liu, Hui Lu, Yalin Guan, Hao Wu, and Yong Ji. "Analysis of Shared Genetic Regulatory Networks for Alzheimer’s Disease and Epilepsy." BioMed Research International 2021 (October 14, 2021): 1–8. http://dx.doi.org/10.1155/2021/6692974.

Full text

Abstract:

Alzheimer’s disease (AD) and epilepsy are neurological disorders that affect a large cohort of people worldwide. Although both of the two diseases could be influenced by genetic factors, the shared genetic mechanism underlying the pathogenesis of them is still unclear. In this study, we aimed to identify the shared genetic networks and corresponding hub genes for AD and epilepsy. Firstly, the gene coexpression modules (GCMs) were constructed by weighted gene coexpression network analysis (WGCNA), and 16 GCMs were identified. Through further integration of GCMs, genome-wide association studies

APA, Harvard, Vancouver, ISO, and other styles

2

Srinivasa Raju, K., and D. Nagesh Kumar. "Selection of global climate models for India using cluster analysis." Journal of Water and Climate Change 7, no. 4 (2016): 764–74. http://dx.doi.org/10.2166/wcc.2016.112.

Full text

Abstract:

Global climate models (GCMs) are gaining importance due to their capability to ascertain climate variables that will be useful to develop long, medium and short term water resources planning strategies. The applicability of K-Means cluster analysis is explored for grouping 36 GCMs from Coupled Model Intercomparison Project 5 for maximum temperature (MAXT), minimum temperature (MINT) and a combination of maximum and minimum temperature (COMBT) over India. Cluster validation methods, namely the Davies–Bouldin Index (DBI) and F-statistic, are used to obtain an optimal number of clusters of GCMs f

APA, Harvard, Vancouver, ISO, and other styles

3

YOSHIOKA, Masanori. "Analysis of atmospheric halocarbons by GCMS." Journal of Environmental Conservation Engineering 15, no. 7 (1986): 500–505. http://dx.doi.org/10.5956/jriet.15.500.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

ANKIT BALVANSHI and H. L. TIWARI. "Analysis of GCMs for prediction of precipitation for Hoshangabad region of Madhya Pradesh." Journal of Agrometeorology 20, no. 4 (2018): 302–4. http://dx.doi.org/10.54386/jam.v20i4.570.

Full text

Abstract:

Ten general circulation models (GCMs) – BCCR-BCCM2.0, Can-ESM2, CGCM3, CSIRO-Mk3.0, GFDL-CM2.0, GFDL-CM2.1, GISS, HADCM3, HADGEM1 and MIROC3.2 were analysed for prediction of precipitation for Hoshangabad region, Madhya Pradesh India. The performance indicator, skill score (SS),technique for order preference by similarity to an ideal solution (TOPSIS) techniques were employed for the selection of the best GCM. The multi-criterion decision making method (MCDM), technique TOPSIS was employed to evaluate and rank the 10 GCMs. On the basis of skill score and TOPSIS, GCMs Can- ESM2, CGCM3, GFDL2.0,

APA, Harvard, Vancouver, ISO, and other styles

5

Zolghadr-Asli, Babak, Omid Bozorg-Haddad, Parisa Sarzaeim, and Xuefeng Chu. "Investigating the variability of GCMs' simulations using time series analysis." Journal of Water and Climate Change 10, no. 3 (2018): 449–63. http://dx.doi.org/10.2166/wcc.2018.099.

Full text

Abstract:

Abstract The natural vulnerability to the climate change phenomenon due to the unique topographic and climatic conditions in the Middle East adds significance to an already important issue of evaluating the simulations of general circulation models (GCMs) in this region. To this end, this study employed time series analysis to evaluate GCMs' simulations, in terms of the air temperature variable, with regard to the observed climatic behaviors of Karkheh River basin, Iran. Resultantly, each of the GCMs' time series was broken down into three principal components (i.e., periodicity, trend, and st

APA, Harvard, Vancouver, ISO, and other styles

6

SAKAI, Saaya. "Pet excrement odor analysis using SPME-GCMS." Journal of Japan Association on Odor Environment 54, no. 1 (2023): 23–27. http://dx.doi.org/10.2171/jao.54.23.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Foyhirun, Chutipat, Duangrudee K. Kongkitkul, and Chaiwat Ekkawatpanit. "Performance of Global Climate Model (GCMs) for Wind Data Analysis." E3S Web of Conferences 117 (2019): 00006. http://dx.doi.org/10.1051/e3sconf/201911700006.

Full text

Abstract:

The surface wind speed is an important climate variable for study of ocean wave energy and coastal erosion. The wind speed and wave height variations are caused by global warming. In the future, climate change impacts on changes of direction and wind speed which affect on wave height and wave period. The global climate model (GCMs) were developed by various institutions so each GCM has different GCM output. Then, the aim of this study is to evaluation the performance of GCMs for wind speed analysis in the area of Gulf of Thailand and Andaman Sea. In this study, the daily wind speed data was an

APA, Harvard, Vancouver, ISO, and other styles

8

Faseehuddin, Mohammad, Sadia Shireen, Sawal Hamid Md Ali, and Worapong Tangsrirat. "Novel Lossless Positive-/Negative-Grounded Capacitance Multipliers Using VCII." Elektronika ir Elektrotechnika 29, no. 4 (2023): 19–26. http://dx.doi.org/10.5755/j02.eie.34304.

Full text

Abstract:

In the presented research, the second-generation voltage conveyor (VCII) is used in the design of active capacitance multipliers. In this paper, three positive and one negative lossless grounded capacitance multipliers (GCMs) are designed. All of these GCMs are designed using two VCIIs, one capacitor, and two resistors. There is no need for any passive component matching to implement a GCM. The multiplication factor of GCMs can be set/varied by changing the values of two resistances as per requirement. Considering nonideal constraints, GCMs are analysed mathematically to evaluate the effect of

APA, Harvard, Vancouver, ISO, and other styles

9

Li, Delei, Baoshu Yin, Jianlong Feng, et al. "Present Climate Evaluation and Added Value Analysis of Dynamically Downscaled Simulations of CORDEX—East Asia." Journal of Applied Meteorology and Climatology 57, no. 10 (2018): 2317–41. http://dx.doi.org/10.1175/jamc-d-18-0008.1.

Full text

Abstract:

AbstractIn this study, we investigate the skills of the regional climate model Consortium for Small-Scale Modeling in Climate Mode (CCLM) in reproducing historical climatic features and their added value to the driving global climate models (GCMs) of the Coordinated Regional Climate Downscaling Experiment—East Asia (CORDEX-EA) domain. An ensemble of climate simulations, with a resolution of 0.44°, was conducted by downscaling four GCMs: CNRM-CM5, EC-EARTH, HadGEM2, and MPI-ESM-LR. The CCLM outputs were compared with different observations and reanalysis datasets. Results showed strong seasonal

APA, Harvard, Vancouver, ISO, and other styles

10

Meher, Jitendra Kumar, Lalu Das, Javed Akhter, Rasmus E. Benestad, and Abdelkader Mezghani. "Performance of CMIP3 and CMIP5 GCMs to Simulate Observed Rainfall Characteristics over the Western Himalayan Region." Journal of Climate 30, no. 19 (2017): 7777–99. http://dx.doi.org/10.1175/jcli-d-16-0774.1.

Full text

Abstract:

Abstract The western Himalayan region (WHR) was subject to a significant negative trend in the annual and monsoon rainfall during 1902–2005. Annual and seasonal rainfall change over the WHR of India was estimated using 22 rain gauge station rainfall data from the India Meteorological Department. The performance of 13 global climate models (GCMs) from phase 3 of the Coupled Model Intercomparison Project (CMIP3) and 42 GCMs from CMIP5 was evaluated through multiple analysis: the evaluation of the mean annual cycle, annual cycles of interannual variability, spatial patterns, trends, and signal-to

APA, Harvard, Vancouver, ISO, and other styles

11

Babiker, Waleed, Guirong Tan, Ahmed Abdallah, and Ayman Elameen. "Evaluation and correction analysis of the regional rainfall simulation by CMIP6 over Sudan." Geographica Pannonica 28, no. 1 (2024): 53–70. http://dx.doi.org/10.5937/gp28-46565.

Full text

Abstract:

This study utilizes satellite-based rainfall CHIRPS to evaluate GCMs-CMIP6 models over Sudan from 1985 to 2014. Overall, the GCMs of BCC-CSM2-MR, CAMS-CSM1-0, CESM2, ECEarth3-Veg, GFDL-ESM4, MIROC-ES2L, and NorESM2-MM are well reproduced in the unimodal pattern of June to September (JJAS), and hence employed to calculate Multi-Model Ensemble (MME). Then, we examine the capability of the GCMs and MME in replicating the precipitation patterns on annual and seasonal scales over Sudan using numerous ranking metrics, including Pearson Correlation Coefficient (CC), Standard Deviation (SD), Taylor Sk

APA, Harvard, Vancouver, ISO, and other styles

12

B, Sowmiya, and Ahmed Fauzia. "Phytochemical Analysis of Bougainvillea spectabilis by Using GCMS." International Journal of Zoological Investigations 7, no. 2 (2021): 751–55. http://dx.doi.org/10.33745/ijzi.2021.v07i02.059.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Cho, Eunsaem, Jinwook Lee, and Chulsang Yoo. "Performance Evaluation of CMIP5 GCMs using CSEOF Analysis." Journal of Korean Society of Hazard Mitigation 16, no. 1 (2016): 265–73. http://dx.doi.org/10.9798/kosham.2016.16.1.265.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

McGinnis, David L., and Robert G. Crane. "A Multivariate Analysis of Arctic Climate in GCMs." Journal of Climate 7, no. 8 (1994): 1240–50. http://dx.doi.org/10.1175/1520-0442(1994)007<1240:amaoac>2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Devanand, P. S., B. Sivakumar, R. Vijayan, et al. "GCMS Analysis of Curry Leaf (Murraya koenigii Linn.)." Asian Journal of Advances in Agricultural Research 24, no. 9 (2024): 15–20. http://dx.doi.org/10.9734/ajaar/2024/v24i9542.

Full text

Abstract:

Curry leaves, or Murraya koenigii, are a valuable plant with Indian origins that are frequently used in the Ayurvedic medical system. They are a part of the Rutaceae family. This plant contains large amounts of carbazole alkaloids, which have potent pharmacological and biological effects, in its roots, bark, and leaves. Murraya koenigii has a long history of strengthening hair roots. This study assessed the potential of dried leaf parts of Lawsoniainermis, Hibiscus rosasinensis, and Murraya koenigii to be an effective topical formulation for action that promotes hair development. The leaves we

APA, Harvard, Vancouver, ISO, and other styles

16

Purushoth Prabhu, T., Shanthini Naichyar, Sheela a, Kavitha b, Kabilan N, and Ravichandran V. "GCMS AND TLC ANALYSIS OF ETHANOLIC EXTRACT OF SEED MOMORDICA CHARANTIA." International Journal of Advanced Research 9, no. 11 (2021): 313–18. http://dx.doi.org/10.21474/ijar01/13743.

Full text

Abstract:

To perform the TLC and GCMS analysis of ethanolic extract of seed Momordica charantia. The seeds ofMomardicacharantia was extracted with ethanol and tested for TLC and GCMS by standard procedure as per the guidelines of WHO.The phytochemical and TLC studies showed the presence of alkaloids, cardiac glycosides, phenols, steroids, terpenoids and proteins.The GCMS analysis of seed Momardicacharantiashowed five major compounds were found to be n-hexadeconic acid, 9,12-Octadecadinoic acid,Octadecanoic acid,Hexadecanoic acid-2-hydroxy-1-hydroxy methyl ethyl ester and Gamma-sitosterol.The Therapeutic

APA, Harvard, Vancouver, ISO, and other styles

17

Ghumman, Abdul Razzaq, Ateeq-ur-Rauf, Husnain Haider, and Md Shafiquzamman. "Functional data analysis of models for predicting temperature and precipitation under climate change scenarios." Journal of Water and Climate Change 11, no. 4 (2019): 1748–65. http://dx.doi.org/10.2166/wcc.2019.172.

Full text

Abstract:

Abstract Evaluating the impact of climatic change on hydrologic variables is highly important for sustainability of water resources. Precipitation and temperature are the two basic parameters which need to be included in climate change impact studies. Thirty years (1985–2015) climatic data of Astore, a sub-catchment of the Upper Indus River Basin (UIRB), were analyzed for predicting the temperature and precipitation under different climate change scenarios. The station data were compared with the results of two global climate models (GCMs) each with two emission scenarios, including Representa

APA, Harvard, Vancouver, ISO, and other styles

18

Sim, Siong Fong, Terri Zhuan Ean Lee, Nurul Aida Lu Mohd Irwan Lu, and Benedict Samling. "Synchronized Analysis of FTIR Spectra and GCMS Chromatograms for Evaluation of the Thermally Degraded Vegetable Oils." Journal of Analytical Methods in Chemistry 2014 (2014): 1–9. http://dx.doi.org/10.1155/2014/271970.

Full text

Abstract:

Fourier Transform Infrared (FTIR) and Gas Chromatography Mass Spectrometry (GCMS) are two common instruments used for analysis of edible oils. The output signal is often analysed on the software attached to the workstations. The processing software is usually individualised for a specific source. The output of GCMS cannot be analysed on the FTIR hence analysts often need to juggle between instruments when multiple techniques are employed. This could become exhaustive when a large dataset is involved. This paper reports a synchronised approach for analysis of signal from FTIR and GCMS. The algo

APA, Harvard, Vancouver, ISO, and other styles

19

Surani, Surani, Cahyo Pujiasmoro, and Asep Kadarohman. "Determination of Optimum Programmed Temperature for Fatty Acid Analysis of Chlorella Microalgae Extract Using GCMS Instrument." Unesa Journal of Chemistry 12, no. 1 (2023): 20–25. http://dx.doi.org/10.26740/ujc.v12n1.p20-25.

Full text

Abstract:

Suhu kolom Gas Chromatography-Mass Spectrometry (GCMS) merupakan salah satu variabel yang harus diperhatikan pada analisis senyawa kimia, agar senyawa terpisahkan dengan baik. Penelitian ini bertujuan untuk menentukan suhu terprogram optimum pada analisis asam lemak menggunakan instrumen GCMS. Sampel asam lemak yang digunakan berasal dari hasil ekstrak mikroalga Chlorella. Ekstrasi mikroalga Chlorella dilakukan dengan cara sonikasi selama 60 menit menggunakan pelarut n-heksana. Variasi suhu terprogram GCMS yang dilakukan, yaitu kenaikan suhu masing-masing pada 5 OC/menit, 7 OC /menit, 9 OC /me

APA, Harvard, Vancouver, ISO, and other styles

20

Nugraha, Irfan, Pri Iswati Utami, and Wiranti Sri Rahayu. "Analisis Asam Lemak Daging Anjing pada Bakso Sapi Menggunakan Gas Chromatography Mass Spectrometry (GCMS) yang Dikombinasikan dengan PCA (Principal Component Analysis)." Indonesia Journal of Halal 1, no. 2 (2018): 117. http://dx.doi.org/10.14710/halal.v1i2.3668.

Full text

Abstract:

ABSTRAKTingginya perbedaan harga daging, membuat beberapa penjual yang tidak etis mengganti daging sapi dengan daging anjing secara sengaja untuk mendapatkan keuntungan ekonomis. Tujuan dilakukan penelitian ini adalah untuk mengetahui kemampuan GCMS yang dikombinasi dengan kemometrika PCA untuk analisis cepat dari asam lemak anjing pada bakso formulasi dan bakso sapi di pasaran. Metode penelitian ini adalah non eksperimental berupa identifikasi profil asam lemak daging anjing pada bakso sapi formulasi dan bakso sapi di pasaran. Hasil penelitian yang didapat berupa profil kromatogram GCMS menun

APA, Harvard, Vancouver, ISO, and other styles

21

Song, Young Hoon, Eun-Sung Chung, and Mohammed Sanusi Shiru. "Uncertainty Analysis of Monthly Precipitation in GCMs Using Multiple Bias Correction Methods under Different RCPs." Sustainability 12, no. 18 (2020): 7508. http://dx.doi.org/10.3390/su12187508.

Full text

Abstract:

This study quantified the uncertainties in historical and future average monthly precipitation based on different bias correction methods, General Circulation Models (GCMs), Representative Concentration Pathways (RCPs), projection periods, and locations within the study area (i.e., the coastal and inland areas of South Korea). The GCMs were downscaled using deep learning, random forest, and nine quantile mapping bias correction methods for 22 gauge stations in South Korea. Data from the Korean Meteorology Administration (1970–2005) were used as the reference data in this study. Two statistical

APA, Harvard, Vancouver, ISO, and other styles

22

Kusuda, Satoshi, Takashi Funahashi, Itsuki Adachi, et al. "Fecal Glucocorticoid Metabolites as a Noninvasive Indicator of Stress in the Tsushima Leopard Cats (Prionailurus bengalensis euptilurus): Application to Health Care." Animals 12, no. 9 (2022): 1072. http://dx.doi.org/10.3390/ani12091072.

Full text

Abstract:

This study investigates whether the measurement of glucocorticoid metabolites (GCMs) in feces is a useful method for the noninvasive evaluation of stress in the endangered Tsushima leopard cats (Prionailurus bengalensis euptilurus). Feces were collected from six seemingly healthy and five diseased (renal dysfunction, adrenal tumor, hernia, feline immunodeficiency virus (FIV), feline leukemia virus (FeLV)) Tsushima leopard cats in captivity. Fecal GCMs were measured by enzyme immunoassay (EIA) for cortisol. Individuals that experienced a physical examination under anesthesia showed increased fe

APA, Harvard, Vancouver, ISO, and other styles

23

Kristóf, Erzsébet, Roland Hollós, Zoltán Barcza, Rita Pongrácz, and Judit Bartholy. "Receiver Operating Characteristic Curve Analysis-Based Evaluation of GCMs Concerning Atmospheric Teleconnections." Atmosphere 12, no. 10 (2021): 1236. http://dx.doi.org/10.3390/atmos12101236.

Full text

Abstract:

The evaluation of general circulation models (GCM) is a fundamental step in climate research in terms of both quality assurance/quality control and realistic representation of the dynamics of the atmospheric flows in the future projections. In this paper, a statistical method is introduced to evaluate GCMs with respect to teleconnection patterns in the winter 500 hPa geopotential height field over the Northern Hemisphere (NH). The procedure uses the combination of negative extrema method and receiver operating characteristic (ROC) curve analysis. The proposed method is demonstrated using selec

APA, Harvard, Vancouver, ISO, and other styles

24

Saini, Sapna, Sanju Nanda, and Anju Dhiman. "GCMS Analysis of Bioactives of Piper betle Linn. Leaf." Current Bioactive Compounds 16, no. 1 (2020): 24–32. http://dx.doi.org/10.2174/1573407215666190417153613.

Full text

Abstract:

Background: Piper betle Linn. (Piperaceae) is commonly known as “Green gold of India” due to its high commercial value. It is a Vedic plant used in various traditional system of medicine v.iz. Ayurveda system of medicine, Yunani system of medicine attributed to various pharmacological activities v.i.z. antioxidant, anti-inflammatory, analgesic, anti-fertility, antimutagenic etc. Objectives: The main objective of the present study is quantitative estimation of the various bioactive compounds present in leaf of P. betle L. (Bangla variety) by GC-MS analysis using head space method. Material and

APA, Harvard, Vancouver, ISO, and other styles

25

Cadd, S. J., L. Mota, D. Werkman, M. Islam, M. Zuidberg, and M. de Puit. "Extraction of fatty compounds from fingerprints for GCMS analysis." Analytical Methods 7, no. 3 (2015): 1123–32. http://dx.doi.org/10.1039/c4ay02434f.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

White, T. L., C. C. Herman, S. L. Crump, A. R. Marinik, D. P. Lambert, and R. E. Eibling. "Analysis of cesium extracting solvent using GCMS and HPLC." Journal of Radioanalytical and Nuclear Chemistry 274, no. 3 (2007): 609–20. http://dx.doi.org/10.1007/s10967-007-6959-8.

Full text

APA, Harvard, Vancouver, ISO, and other styles

27

Nofira, Yendri, Muhammad Taufik, and Helmina Br Sembiring. "Analysis of Methamphetamine Using Necrophagous Insects For Forensic Entomotoxicology Applications." International Journal of Ecophysiology 5, no. 2 (2023): 8–17. http://dx.doi.org/10.32734/ijoep.v5i2.13387.

Full text

Abstract:

The high use of methamphetamine (MA) has resulted in many cases of overdose leading to death, where bodies are generally found after several days which complicates the investigation so that a forensic entomotoxicological analysis using insects is carried out. The use of necrophagous insects was chosen because necrophagous insects such as maggots were at the crime scene. Maggot was then analyzed using Gas Chromatography-Mass Spectrometry (GCMS) with several stages. The preliminary test was carried out using the marquis reagent which changed the color of the sample to orange if positive for meth

APA, Harvard, Vancouver, ISO, and other styles

28

-, Winarsih, Diky Setya Diningrat, Ayu Nirmala Sari, Novita Sari Harahap, and Kusdianti -. "Antiviral Potential Analysis of Jamblang Seed Essential Oil (Syzygium cumini) Using GCMS." Kalwedo Sains (KASA) 2, no. 2 (2021): 95–105. http://dx.doi.org/10.30598/kasav2i2p95-105.

Full text

Abstract:

Jamblang (Syzygium cumini) essential oil is another form of extraction to explore its potential medicinal properties. This study aims to determine the content of bioactive compounds contained in seed essential oil using the Gas Chromatography Mass Spectophotometer (GCMS) approach. Jamblang seed essential oil is produced through a steam distillation process. The results of the GCMS analysis were evaluated using the MASSLAB program. The data obtained from the GCMS tool was then further analyzed using the PubChem NCBI database software (https://pubchem.ncbi.nlm.nih.gov/) and PASS online. The resu

APA, Harvard, Vancouver, ISO, and other styles

29

Enearepuadoh, Orodu, Victo, and Dakitima, Egioni Philip. "EXTRACTION AND GCMS ANALYSIS OF OIL FROM RED COCOYAM PEEL (colocasia esculenta)." International Journal of Medical Science and Dental Health 10, no. 07 (2024): 75–94. http://dx.doi.org/10.55640/ijmsdh-10-07-09.

Full text

Abstract:

Extraction of oil from red cocoyam peel has been carried out using the cold extraction method, with a reagent n-hexane as the extraction solvent The GC-MS was used to identify the components in the oil after extraction, the components that was found in the oil include, 1,3,5- trimethy benzene at a retention time of (2.844)min with a peak of 3.342%, n-hexadecanoic acid at a retention time of(7.250)min with a peak of 26.395%, 9,12-octadecadienoic acid at a retention time of (7.685)min with a peak of 2.036%, 1,1-dimethyl hexadecenoate at a retention time (7.794)min with a peak of 2.013%,9-octadec

APA, Harvard, Vancouver, ISO, and other styles

30

YU, PEI, WEIGUANG YAO, and GUANRON CHEN. "ANALYSIS ON TOPOLOGICAL PROPERTIES OF THE LORENZ AND THE CHEN ATTRACTORS USING GCM." International Journal of Bifurcation and Chaos 17, no. 08 (2007): 2791–96. http://dx.doi.org/10.1142/s0218127407018762.

Full text

Abstract:

This letter reports a study on some topological properties of chaos using a generalized competitive mode (GCM). The Lorenz system and the Chen system are used as examples for comparison. It is shown that for typical parameter values used in the two systems, the Lorenz attractor has one pair of GCMs in competition, while the Chen attractor has two pairs of GCMs in competition. This explains why the two attractors are topologically different, and furthermore indicates that the Chen attractor is more complex than the Lorenz attractor from the dynamics point of view.

APA, Harvard, Vancouver, ISO, and other styles

31

Ahlström, A., J. Lindström, M. Rummukainen, B. Smith, and C. B. Uvo. "GCM characteristics explain the majority of uncertainty in projected 21st century terrestrial ecosystem carbon balance." Biogeosciences Discussions 9, no. 10 (2012): 13685–712. http://dx.doi.org/10.5194/bgd-9-13685-2012.

Full text

Abstract:

Abstract. One of the largest sources of uncertainties in modelling of the future global climate is the response of the terrestrial carbon cycle. Studies have shown that it is likely that the extant land sink of carbon will weaken in a warming climate. Should this happen, a~larger portion of the annual carbon dioxide emissions will remain in the atmosphere, and further increase the global warming, which in turn may further weaken the land sink. We investigate the potential sensitivity of global terrestrial ecosystem carbon balance to differences in future climate simulated by four general circu

APA, Harvard, Vancouver, ISO, and other styles

32

Ahlström, A., B. Smith, J. Lindström, M. Rummukainen, and C. B. Uvo. "GCM characteristics explain the majority of uncertainty in projected 21st century terrestrial ecosystem carbon balance." Biogeosciences 10, no. 3 (2013): 1517–28. http://dx.doi.org/10.5194/bg-10-1517-2013.

Full text

Abstract:

Abstract. One of the largest sources of uncertainties in modelling of the future global climate is the response of the terrestrial carbon cycle. Studies have shown that it is likely that the extant land sink of carbon will weaken in a warming climate. Should this happen, a larger portion of the annual carbon dioxide emissions will remain in the atmosphere, and further increase global warming, which in turn may further weaken the land sink. We investigate the potential sensitivity of global terrestrial ecosystem carbon balance to differences in future climate simulated by four general circulati

APA, Harvard, Vancouver, ISO, and other styles

33

VN, Chidozie, and Adoga GI. "Organic Compounds in the GCMS Analysis of Methanolic Leaf Extract of Anogeissus leiocarpus." International Journal of Sciences Volume 9, no. 2020-03 (2020): 53–59. https://doi.org/10.5281/zenodo.3980065.

Full text

Abstract:

GCMS of n-butanolic leaf extract of anogeissus leiocarpus showed eleven peaks, indicating the presence of eleven compounds. Five of these compounds are fatty acids and their derivatives. Among these are palmitic acid, palmitic acid methyl ester, oleic acid, oleic acid methyl ester and stearic acid. Many fatty acids are known to have antibacterial and antifungal properties. Other compounds seen are phthalic acid and di-n-octyl phthalate. The GCMS result of anogeissus leiocarpus leaf extract validates the use in traditional medicine as antibacterial.Read Complete Article at ijSciences: V92020022

APA, Harvard, Vancouver, ISO, and other styles

34

Kristóf, Erzsébet, Zoltán Barcza, Roland Hollós, Judit Bartholy, and Rita Pongrácz. "Evaluation of Historical CMIP5 GCM Simulation Results Based on Detected Atmospheric Teleconnections." Atmosphere 11, no. 7 (2020): 723. http://dx.doi.org/10.3390/atmos11070723.

Full text

Abstract:

Atmospheric teleconnections are characteristic to the climate system and exert major impacts on the global and regional climate. Accurate representation of teleconnections by general circulation models (GCMs) is indispensable given their fundamental role in the large scale circulation patterns. In this study a statistical method is introduced to evaluate historical GCM outputs of the fifth phase of the Coupled Model Intercomparison Project (CMIP5) with respect to teleconnection patterns. The introduced method is based on the calculation of correlations between gridded time series of the 500 hP

APA, Harvard, Vancouver, ISO, and other styles

35

Siam, Mohamed S., Marie-Estelle Demory, and Elfatih A. B. Eltahir. "Hydrological Cycles over the Congo and Upper Blue Nile Basins: Evaluation of General Circulation Model Simulations and Reanalysis Products." Journal of Climate 26, no. 22 (2013): 8881–94. http://dx.doi.org/10.1175/jcli-d-12-00404.1.

Full text

Abstract:

Abstract The simulations and predictions of the hydrological cycle by general circulation models (GCMs) are characterized by a significant degree of uncertainty. This uncertainty is reflected in the range of Intergovernmental Panel on Climate Change (IPCC) GCM predictions of future changes in the hydrological cycle, particularly over major African basins. The confidence in GCM predictions can be increased by evaluating different GCMs, identifying those models that succeed in simulating the hydrological cycle under current climate conditions, and using them for climate change studies. Reanalyse

APA, Harvard, Vancouver, ISO, and other styles

36

Sianturi, Parulian, Nur Asyiah Dalimunthe, Angga Ade Sahfitra, Rizal Aziz, and Saipul Sihotang. "IDENTIFIKASI KANDUNGAN SENYAWA METABOLIT SEKUNDER PADA BATANG DAN DAUN SURAT DIBATA (Macodes petola) MENGGUNAKAN GAS CHROMATOGRAPHY SPECTROMETRY (GCMS)." Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian 8, no. 2 (2024): 38–44. https://doi.org/10.31289/agr.v8i2.12725.

Full text

Abstract:

This study, entitled Identification of Secondary Metabolite Compounds in the Stems and Leaves of Surat Dibata (Macodes petola) Using Gas Chromatography Mass Spectrometry (GCMS) aims to determine the compounds and their concentrations of secondary metabolites present in the stems and leaves of Surat Dibata (Macodes petola) using Gas Chromatography Mass Spectrometry (GCMS). The methods used in this study include maceration extraction to identify secondary metabolite compounds and Gas Chromatography Mass Spectrometry (GCMS) to determine the concentrations of these compounds in the stems and leave

APA, Harvard, Vancouver, ISO, and other styles

37

Giuntoli, I., J. P. Vidal, C. Prudhomme, and D. M. Hannah. "Future hydrological extremes: the uncertainty from multiple global climate and global hydrological models." Earth System Dynamics 6, no. 1 (2015): 267–85. http://dx.doi.org/10.5194/esd-6-267-2015.

Full text

Abstract:

Abstract. Projections of changes in the hydrological cycle from global hydrological models (GHMs) driven by global climate models (GCMs) are critical for understanding future occurrence of hydrological extremes. However, uncertainties remain large and need to be better assessed. In particular, recent studies have pointed to a considerable contribution of GHMs that can equal or outweigh the contribution of GCMs to uncertainty in hydrological projections. Using six GHMs and five GCMs from the ISI-MIP multi-model ensemble, this study aims: (i) to assess future changes in the frequency of both hig

APA, Harvard, Vancouver, ISO, and other styles

38

Giuntoli, I., J. P. Vidal, C. Prudhomme, and D. M. Hannah. "Future hydrological extremes: the uncertainty from multiple global climate and global hydrological models." Earth System Dynamics Discussions 6, no. 1 (2015): 1–30. http://dx.doi.org/10.5194/esdd-6-1-2015.

Full text

Abstract:

Abstract. Projections of changes in the hydrological cycle from Global Hydrological Models (GHMs) driven by Global Climate Models (GCMs) are critical for understanding future occurrence of hydrological extremes. However, uncertainties remain large and need to be better assessed. In particular, recent studies have pointed to a considerable contribution of GHMs that can equal or outweigh the contribution of GCMs to uncertainty in hydrological projections. Using 6 GHMs and 5 GCMs from the ISI-MIP multi-model ensemble, this study aims: (i) to assess future changes in the frequency of both high and

APA, Harvard, Vancouver, ISO, and other styles

39

Rahman, Nuur Iszuana Binti Abdul, and Vivien Jong Yi Mian. "NMR- and GCMS -Based Metabolomics Approach of Morinda citrifolia." Journal of Asian Scientific Research 11, no. 3 (2021): 34–41. http://dx.doi.org/10.18488/journal.2.2021.113.34.41.

Full text

Abstract:

Morinda citrifolia or Noni is known as an important dietary supplement, food functional ingredient, or as natural health enhancer that is used throughout the world. Different parts of the plant have been proven to carry compounds that have high medicinal values such as terpenoids, alkaloids and anthraquinones. The stem bark of Morinda citrifolia collected from different types of soil were studied. It aimed to investigate the influence of different geographical factor on its metabolite profile by multivariate statistical analyses of spectral data deduced by NMR methods. A metabolomic approach e

APA, Harvard, Vancouver, ISO, and other styles

40

Barria, Pilar A., Murray C. Peel, Kevin J. E. Walsh, and René Garreaud. "Analysis of within and between-GCM uncertainties of runoff projections in Mediterranean-like catchments." Journal of Southern Hemisphere Earth Systems Science 67, no. 3 (2017): 181. http://dx.doi.org/10.1071/es17011.

Full text

Abstract:

Streamflow reductions have been reported in mid-latitude Southern Hemisphere (SH) catchments, in particular in the southwest of Western Australia (SWA) and in central Chile (CC), following decreases in precipitation since the mid-1970s. Although projections from Global Climate Models (GCMs) indicate the observed trends are expected to continue during the rest of the 21st century, they are affected by large uncertainties that challenge informed decision making. Quantification and comparison of uncertainties in runoff projections for the period 2050-2080 relative to 1970-2000, driven by an ensem

APA, Harvard, Vancouver, ISO, and other styles

41

N, Pushpabharathi, Jayalakshmi M, Amudha P, and Vanitha V. "IDENTIFICATION OF BIOACTIVE COMPOUNDS IN CYMODOCEA SERRULATA-A SEAGRASS BY GAS CHROMATOGRAPHY–MASS SPECTROSCOPY." Asian Journal of Pharmaceutical and Clinical Research 11, no. 9 (2018): 317. http://dx.doi.org/10.22159/ajpcr.2018.v11i9.26744.

Full text

Abstract:

Objective: The objective of this study was to identify the lead phytocompounds present in the ethanol extract of the seagrass Cymodocea serrulata by gas chromatography–mass spectrometry (GCMS).Methods: 1 kg of C. serrulata whole seagrass powder was subjected to extraction on polarity basis using five solvent such as hexane, chloroform, ethyl acetate, ethanol, and water. Since ethanol extract showed a maximum antioxidant property, its phytochemicals were investigated using GCMS technique. The phytocompounds identified through GC were interpreted with mass spectra national institute standard and

APA, Harvard, Vancouver, ISO, and other styles

42

Lahellec, Alain, and Jean-Louis Dufresne. "A Formal Analysis of the Feedback Concept in Climate Models. Part II: Tangent Linear Systems in GCMs." Journal of the Atmospheric Sciences 71, no. 9 (2014): 3350–75. http://dx.doi.org/10.1175/jas-d-13-0334.1.

Full text

Abstract:

Abstract Climate analysis is greatly simplified in perturbation analysis when filtered anomalies show linear behavior. In the first part (part I) of this two-part analysis, the formal tangent linear system (TLS) that handles linear behavior was used to demonstrate the strict equivalence between feedback and sensitivity analysis but at the cost of reducing the generality of its application to GCMs. In this second part, the full feedback analysis is introduced from the application of the so-called regression method of Gregory et al. The authors give a complete example of its use in the global an

APA, Harvard, Vancouver, ISO, and other styles

43

Bhuvaneshwari, C., and S. Ambiga. "Antioxidant and anticancer activities of Solanum nigrum Linn leaves." Journal of Current Opinion in Crop Science 3, no. 2 (2022): 79–89. http://dx.doi.org/10.62773/jcocs.v3i2.171.

Full text

Abstract:

Solanum nigrum Linn, belonging to the family Solanaceae, is a flowering species native to Australia, South Africa, and Asia. In the present study, the dried S. nigrum leaves were extracted with benzene, diethyl ether, and ethanol by Soxhlet’s extraction and screened qualitatively and quantitatively to determine their total phytoconstituent content and their potential antioxidant evaluation, followed by the GCMS analysis to predict the hit compounds. The highest amounts of phenols (120.50 mg), alkaloids (90.50 mg), and flavonoids (108.75 mg) were present in the diethyl ether extract of the Sola

APA, Harvard, Vancouver, ISO, and other styles

44

Irfan Ullah, Irfan Ullah, Jamshaid Ali Khan Jamshaid Ali Khan, Achyut Adhikari Achyut Adhikari, Peer Abdul Hannan Peer Abdul Hannan, Faisal Shakeel Muhammad Kifayatullah Faisal Shakeel Muhammad Kifayatullah, and Ajmal Khan and Shafiq Ur Rahman Ajmal Khan and Shafiq Ur Rahman. "GCMS Analysis and In-Vitro Activities of Monotheca buxifolia (Falc.) A. DC. Fruit." Journal of the chemical society of pakistan 41, no. 1 (2019): 143. http://dx.doi.org/10.52568/000709/jcsp/41.01.2019.

Full text

Abstract:

The aim of the current study was to evaluate various fractions of Monotheca buxifolia fruit chemically using GC-MS and in vitro antibacterial, antifungal, and leishmanicidal potentials in order to provide scientific evidences for its folk uses. A variety of pharmacologically active compounds were identified including hexadecanoic acid, oleic acid, vaccinic acid, and pthanlic acid. All the tested samples were found fairly effective in antibacterial assay, P. aeruginosa was found more susceptible to ethyl acetate fraction with inhibition of 69.5 %, while B. subtilis was found completely resistan

APA, Harvard, Vancouver, ISO, and other styles

45

Chand, Shweta, and Ritik Pandey. "Comparative Analysis of Organic Components in Extracted and Commercial Clove Oil Using GCMS." International Journal of Science and Research (IJSR) 13, no. 8 (2024): 1192–96. http://dx.doi.org/10.21275/sr24816201729.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Baskar, M., B. Kiranmathyi, C. Sivaraj, K. Saraswathi, and P. Arumugam. "Antioxidant Activities and GCMS Analysis of Anacardium occidentale L. Fruits." Journal of Drug Delivery and Therapeutics 9, no. 3 (2019): 348–55. http://dx.doi.org/10.22270/jddt.v9i3.2677.

Full text

Abstract:

Anacardium occidentale belongs to the family Anacardiaceae is a tropical evergreen tree with spreading branches which are supported by aerial roots that go down into the soil to form the 'props'. The milky latex is applied externally for treating pains in rheumatism and in lumbago. The infusion of the bark is used against dysentery, diarrhoea and diabetes. The study aims to evaluate the antioxidant activities and GC-MS analysis of ethanol and aqueous fruit extracts of Anacardium occidentale. The antioxidant assays such as DPPH˙ radical, Superoxide (O2.‑) radical, ABTS●+ radical cation scavengi

APA, Harvard, Vancouver, ISO, and other styles

47

Crifasi, Joseph, and Christopher Long. "The GCMS analysis of tranylcypromine (Parnate) in a suspected overdose." Forensic Science International 86, no. 1-2 (1997): 103–8. http://dx.doi.org/10.1016/s0379-0738(97)02126-9.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Severin, D., and A. K. Gupta. "COMPOSITIONAL ANALYSIS OF PETROLEUM WAXES BY ZEOLITE MOLECULAR SIEVE-GCMS." Petroleum Science and Technology 17, no. 9-10 (1999): 967–80. http://dx.doi.org/10.1080/10916469908949759.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Flood, Mariel E., Julian C. Goding, Jack B. O’Connor, Dorisanne Y. Ragon, and Amber M. Hupp. "Analysis of Biodiesel Feedstock Using GCMS and Unsupervised Chemometric Methods." Journal of the American Oil Chemists' Society 91, no. 8 (2014): 1443–52. http://dx.doi.org/10.1007/s11746-014-2488-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Yuan, Ruixue, Keyu Wang, Dandan Ren, et al. "An Analysis of Uncertainties in Evaluating Future Climate Change Impacts on Cotton Production and Water Use in China." Agronomy 15, no. 5 (2025): 1209. https://doi.org/10.3390/agronomy15051209.

Full text

Abstract:

Global Climate Models (GCMs) are a primary source of uncertainty in assessing climate change impacts on agricultural production, especially when relying on limited models. Considering China’s vast territory and diverse climates, this study utilized 22 GCMs and selected three representative cotton-producing regions: Aral (northwest inland region), Wangdu (Yellow River basin), and Changde (Yangtze River basin). Using the APSIM model, we simulated climate change effects on cotton yield, water consumption, uncertainties, and climatic factor contributions. Results showed significant variability dri

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!