检索结果-南通市图书馆

Variation in Antioxidants, Bioactive Compounds and Antioxidant Capacity in Germinated and Ungerminated Grains of Ten Rice Cultivars

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Rice science 2017年第6期24卷 349-359页

作者： maninder kaur Bavita ASTHIR Gulshan MAHAJAN Department of Biochemistry Punjab Agricultural University Ludhiana Punjab 141004 India Department of Plant Breeding and Genetics Punjab Agricultural University Ludhiana Punjab 141004 India

Present study was conducted to characterise ten rice(Oryza sativa L.) cultivars viz. IET-23466, Dhan-201, IET-23448, MAS-946, IET-23445, IET-23463, IET-23455, PR-123, PR-115 and IET-23449 based on antioxidants(total phenolics, flavonols and tannins), bioactive compounds(phytic acid, gamma amino butyric acid, tocopherol and reduced ascorbate) and antioxidant activity(1,1-diphenyl-2-picrylhydrazyl radical scavenging activity, hydroxyl radical scavenging activity, free radical antioxidant power and total reducing power) with an aim to identify cultivars containing higher health promoting components after germination. Three cultivars IET-23466, IET-23463 and PR-123 performed better as revealed by higher level of antioxidants, bioactive compounds and antioxidant activity before and after germination. Three cultivars MAS-946, IET-23445 and IET-23449 had moderate level of antioxidants, bioactive compounds and antioxidant activity. Four cultivars Dhan-201, IET-23448, IET-23455 and PR-115 performed intermediately. Strong positive correlation was observed among total phenolics and the antioxidant activity. Phytic acid was found to be negatively correlated to the antioxidant activity. Our results highlighted that cultivars IET-23466, IET-23463 and PR-123 hold great potential after germination and would open up a useful opportunity for the functional food industry, and consumption of these cultivars after germination would afford health benefits to consumers since they contain higher level of antioxidants.

关键词： antioxidant activity bioactive compound flavonol phytic acid total phenolic rice germination

维普期刊数据库

Temperature-dependent aggregation of bio-surfactants in aqueous solutions of galactose and lactose:Volumetric and viscometric approach

在线全文

学校读者我要写书评

暂无评论

Chinese Journal of Chemical Engineering 2018年第5期26卷 1119-1131页

作者： S.Chauhan Vivek Sharma maninder kaur Poonam Chaudhary Department of chemistry Himachal Pradesh University

Modulation in the aggregation behavior of bio-surfactants(bile salts), sodium cholate(NaC) and sodium deoxycholate(NaDC) in aqueous solutions of carbohydrates(galactose and lactose) have been investigated by measuring the density(ρ), speed of sound(u) and viscosity(η) of the mixtures at different temperatures293.15, 298.15, 303.15, 308.15 and 313.15 K. The density and speed of sound data have been used to calculate various volumetric and compressibility parameters such as apparent molar volume(V_φ), isentropic compressibility(κ_s), apparent molar adiabatic compression(κ_(s, φ)) to get a better insight into the micellization mechanism of bile salts. Further, the viscosity data have been studied in the light of relative viscosity(η_r) and viscous relaxation time(τ). Some derived parameters such as free volume(V_f), internal pressure(πi) and molar cohesive energy(MCE) of Na C and Na DC in aqueous solution of saccharides have also been calculated from viscosity data in conjunction with density and speed of sound values. All the calculated and derived parameters provide qualitative information regarding the nature of interactions i.e. solute–solute, solute–solvent and solvent–solvent in the solution.

关键词：表面活化剂温度依赖聚集行为半乳糖容量简历水松驰时间

维普期刊数据库

Searching systematics for nonfactorizable contributions to B^(-)and B^(0) hadronic decays

在线全文

学校读者我要写书评

暂无评论

Chinese Physics C 2022年第7期46卷 47-55页

作者： maninder kaur Supreet Pal Singh R.C.Verma Department of Physics Punjabi UniversityPatiala-147002India

The two-body weak decays B→πD/B→ρD and B→πD are examined using isospin analysis to study nonfactorizable *** determining strong interaction phases and obtaining factorizable contributions from spectator-quark diagrams for Nc=3,we determine nonfactorizable isospin amplitudes from the experimental data for these *** results support the universality of the ratio of nonfactorizable isospin reduced amplitudes for these decays within experimental *** demonstrate that these systematics are not coincidental,we also plot our results *** ratio.

关键词： nonfactorization weak hadronic decays HEP-PHE

User Assisted Cooperative Relaying in Beamspace Massive MIMO NOMA Based Systems for Millimeter Wave Communications

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Communications 2019年第6期16卷 103-113页

作者： Jaipreet kaur maninder Lal Singh Department of Electronics Technology Guru Nanak Dev University

A novel scheme‘user assisted cooperative relaying in beamspace massive multiple input multiple output(M-MIMO)non-orthogonal multiple access(NOMA)system’has been proposed to improve coverage area,spectrum and energy efficiency for millimeter wave(mmWave)communications.A downlink system for M users,where base station(BS)is equipped with beamforming lens antenna structure having NRF radio frequency(RF)chains,has been considered.A dynamic cluster of users is formed within a beam and the intermediate users(in that cluster)between beam source and destination(user)act as relaying *** the use of successive interference cancellation(SIC)technique of NOMA within a cluster,the relaying stations relay the symbols with improved power to the *** maximizing achievable sum rate,transmit precoding and dynamic power allocation for both intra and inter beam power optimization are *** for performance evaluation are carried out to validate that the proposed system outperforms the conventional beamspace M-MIMO NOMA system for mmWave communications in terms of spectrum and energy efficiency.

关键词： cooperative relaying system(CRS) millimeter wave(mmWave) massive multiple input multiple output(M-MIMO) non-orthogonal multiple access(NOMA) power allocation sum rate

维普期刊数据库

Modelling and Reporting Parameters of Optical OFDM System Using Different Modulation Techniques

在线全文

学校读者我要写书评

暂无评论

Optics and Photonics Journal 2013年第2期3卷 204-210页

作者： Harsimran Jit kaur maninder Lal Singh Electronics and Communication Engineering Chitkara University Mohali India Guru Nanak Dev University Amritsar India

OFDM (Optical Orthogonal Frequency Division Multiplexing) in the optical domain is a promising technology which provides solutions to problems of today’s optical networks. In the present research an optical OFDM system is designed using different modulation techniques QPSK (quadrature phase shift keying), QAM (quadrature amplitude Modulation). Various signal conditioning parameters, like OSNR (optical signal to noise ratio), BER (bit error rate), chromatic dispersion and electrical SNR (signal to noise ratio) have been reported in present research. These parameters could be used for identifying the fault. On the basis of conclusion drawn for values of these parameters, the system may dynamically adapt and reconfigure itself for better transmission. In present research OPTSIM and MATLAB has been used as Simulation tools.

关键词： OFDM OSNR BER QPSK

Cone beam computed tomographic evaluation of pharyngeal airway in North Indian children with different skeletal patterns

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Radiology 2021年第2期13卷 40-52页

作者： Anuraj Singh Kochhar maninder Singh Sidhu Ritasha Bhasin Gulsheen kaur Kochhar Himanshu Dadlani Jagpreet Sandhu Bobby Virk Former Orthodontist Max HospitalGurgaon 122001India Department of Orthodontics Faculty of Dental SciencesSGT UniversityGurugram 122001India Faculty of Dentistry University of TorontoToronto M5G 1G6Canada Department of Pediatric and Preventive Dentistry National Dental College and HospitalDerabassi 140507PunjabIndia Department of Periodontology Kalka Dental CollegeUttar Pradesh 210507India Senior Consultant Department of Dental SurgeryMax HospitalGurgaon 122001Indi Formerly at Department of Orthodontics Genesis Institute of Dental SciencesPunjab 152001India Chief Orthodontist Smile With BracesPuyallupWA 98371United States

BACKGROUND In growing patients with skeletal discrepancies,early assessment of functional factors can be vital for the restoration of normal craniofacial *** To compare airway volumes in patients with mandibular retrognathism with the normal anteroposterior skeletal relationship,thereby assessing the association between cephalometric variables and airway *** Cone-beam computed tomography volume scans,and lateral cephalograms,3-dimensional airway volume and cross-sectional areas of 120 healthy children(54 boys and 66 girls mean age 15.19±1.28)which were done for orthodontic assessment were *** subjects were divided into 2 groups based on the angle formed between point A,Nasion and point B(ANB)values and cephalometric variables(such as anterior and posterior facial height,gonial angle etc.)airway volumes,and cross-sectional measurements were compared using independent t ***’s correlation coefficient test was used to detect any relationship of different parts of the airway and between airway volume and 2-dimensional cephalometric *** Means and standard deviations for cephalometric,cross-sectional,and volumetric variables were ***,mandibular body length and facial convexity were statistically highly significant(P<0.01)whereas condylion to point A,nasal airway and total airway volume(P<0.05)were statistically *** nasal airway volume and the superior pharyngeal airway volume had a positive correlation(P<0.01),nasal airway was correlated to middle(P<0.05)and total airway superior had a relation with middle(P<0.05),inferior and total airway(P<0.05),middle was related to all other airways;inferior was also related to all the airways except *** cephalometric values were positively correlated with the airway volume with Frankfurt Mandibular Plane Angle and facial convexity showed significant correlations with total airway volume(P<0.05).Additionally,ANB angle was significantly correlated wit

关键词： Pharyngeal airway Cone beam computed tomography Skeletal pattern Malocclusion Retrognathic Airway volume