Dr Jixin Yang
Uwch Darlithydd mewn Cemeg / Cemeg Dadansoddol
- Ystafell: C13h
- Ffôn: 01978 293123
- E-bost: Jixin.Yang@glyndwr.ac.uk
Derbyniodd Dr Jixin Yang ei BSc o Brifysgol Nanjing (Nanjing, China) yn 1996 ac MSc o Academi Gwyddorau Tsieina (Beijing, Tsieina) yn 1999. Yna daeth i’r DU i astudio yn yr Ysgol Gemeg, Prifysgol Nottingham. Ar ôl graddio yn 2003, gweithiodd fel cymrawd ymchwil ôl-ddoethurol yn Nottingham am 6 mlynedd arall, gan ganolbwyntio ar faes cemeg deunyddiau.
Symudodd Dr Yang i swydd darlithydd ym Mhrifysgol Glyndŵr Wrecsam yn 2009, ac fe’i dyrchafwyd i uwch-ddarlithydd yn 2011. Erbyn hyn mae’n ymgymryd â gwaith dysgu ac ymchwil israddedig ac ôl-radd mewn cemeg deunyddiau.
Mae Dr Yang wedi cyhoeddi tros 50 o erthyglau ymchwil hyd yn hyn mewn cyfnodolion a adolygir gan gymheiriaid gyda chyfanswm o dros 1,300 o gyfeiriadau. Mae’n Gemegydd Siartredig (CChem), yn Athro Gwyddoniaeth Siartredig (CSciTeach), Aelod o’r Gymdeithas Gemeg Frenhinol (MRSC) ac Uwch Gymrawd yr Academi Addysg Uwch (SFHEA).
Mae Dr Yang yn un o arweinyddion llinyn ymchwil yng Nghyfadran y Celfyddydau, Gwyddoniaeth a Thechnoleg ac yn eistedd ar sawl pwyllgor academaidd ar lefel y brifysgol. Hefyd mae’n aseswr panel ar gyfer y Gymdeithas Gemeg Frenhinol, ac yn gwerthuso ceisiadau ail-ddilysu i fod yn Athro Gwyddoniaeth Siartredig (CSciTeach) ac yn aelod o Bwyllgor Adran Leol Gogledd Cymru Cymdeithas Gemeg Frenhinol gan gynrychioli Prifysgol Glyndŵr Wrecsam.
Yn 2020 cyrhaeddodd y rhestr fer ar gyfer Gwobr Undeb y Myfyrwyr ar gyfer Darlithydd Gorau Cyfadran y Celfyddydau, Gwyddoniaeth a Thechnoleg. Yn 2021 ef oedd enillydd y wobr hon.
Diddoredebau Ymchwil
Nanoronynnau metel, deunyddiau lled-ddargludyddion, nanocomposites polymer, hydrocoloidau, dadansoddiad offerynnol, hylifau uwch-gritigol a chemeg gwyrdd.
Prosiectau Ymchwil
Teitl | Rôl | Disgrifiad | Blwyddyn |
---|---|---|---|
Royal Society of Chemistry Context- and Problem-Based Learning project | cyd-ymchwilydd | Mae hwn yn brosiect ymchwil addysgu a dysgu a ariennir gan yr RSC sy'n cynnwys myfyrwyr sy'n cymryd rhan i archwilio effeithiolrwydd dysgu cyd-destun a dysgu problemus. | 2011 -2012 |
Cyhoeddiadau
Blwyddyn | Cyhoeddiad | Math |
---|---|---|
2024 | Formation, influencing factors, and applications of internal channels in starch: A review, Food Chemistry, 21. [DOI] Zhu J, Han L, Wang M, Yang J, Fang Y, Zheng Q, Zhang X, Gao J and Hu B |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2024 | Impact of cod skin peptide-ι-carrageenan conjugates prepared via the Maillard reaction on the physical and oxidative stability of Antarctic krill oil emulsions, [DOI] Han, Lingyu;Zhai, Ruiyi;Shi, Ruitao;Hu, Bing;Yang, Jixin;Xu, Zhe;Ma, Kun;Li, Yingmei;Li, Tingting |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2023 | Effects of Octenyl-Succinylated Chitosan—Whey Protein Isolated on Emulsion Properties, Astaxanthin Solubility, Stability, and Bioaccessibility, [DOI] Han, Lingyu;Zhai, Ruiyi;Hu, Bing;Yang, Jixin;Li, Yaoyao;Xu, Zhe;Meng, Yueyue;Li, Tingting |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2023 | Preparation and characterization of gliadin-based core-shell microcapsules by three antisolvent approaches, [DOI] Yang, Yisu;Han, Lingyu;Cao, Jijuan;Yang, Xi;Hu, Chuhuan;Yang, Jixin;Zheng, Qiuyue;Zhang, Xiaobo;Hu, Bing |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2023 | Calcium ion regulation of sodium alginate in pure buckwheat noodles shown by in vitro simulated digestion, Frontiers in nutrition, 9. [DOI] Wang, Hongyan;Zhang, Jiukai;Han, Lingyu;Cao, Jijuan;Yang, Jixin;Zhang, Ying;Hu, Bing |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2022 | Composite oleogels formed by cellulose particles and sorbitan acid esters, FOOD STRUCTURE-NETHERLANDS, 31. [DOI] Gao, Zhiming;Zhang, Chao;Wu, Yuehan;Chen, Fangfang;Hu, Bing;Wang, Ran;Yang, Jixin;Nishinari, Katsuyoshi |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2022 | Octenyl-succinylated inulins for the delivery of hydrophobic drug, International Journal of Biological Macromolecules, 221. [DOI] Han, Lingyu;Sun, Jiao;Williams, Peter A.;Yang, Jixin;Zhang, Shubiao |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2022 | Investigation of rheological behaviors of aqueous gum Arabic in the presence of crystalline nanocellulose, CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS, 4. [DOI] Jones, Kevin L.;Hu, Bing;Li, Wei;Fang, Yapeng;Yang, Jixin |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2022 | Characterization of hydrophilic and hydrophobic core-shell microcapsules prepared using a range of antisolvent approaches, Food Hydrocolloids, 131. [DOI] Hu, Bing;Yang, Yisu;Han, Lingyu;Yang, Jixin;Zheng, Wenjie;Cao, Jijuan |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2022 | Characterization of hydrophilic and hydrophobic core-shell microcapsules prepared using a range of antisolvent approaches, [DOI] Hu, Bing;Yang, Yisu;Han, Lingyu;Yang, Jixin;Zheng, Wenjie;Cao, Jijuan |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2021 | Electrostatic Interaction-Based Fabrication of Calcium Alginate-Zein Core-Shell Microcapsules of Regulable Shapes and Sizes, Langmuir, 37. [DOI] Zhang, Xun;Hu, Bing;Zhao, Yiguo;Yang, Yisu;Gao, Zhiming;Nishinari, Katsuyoshi;Yang, Jixin;Zhang, Yin;Fang, Yapeng |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2021 | Conformational transition and gelation of kappa-carrageenan in electrostatic complexation with beta-lactoglobulin aggregates, Food Hydrocolloids, 118. [DOI] Hu, Bing;Hu, Jing;Han, Lingyu;Cao, Jijuan;Nishinari, Katsuyoshi;Yang, Jixin;Fang, Yapeng;Li, Dongmei |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2020 | Octenyl-succinylated inulin for the encapsulation and release of hydrophobic compounds, Carbohydrate Polymers, 238. [DOI] Han, Lingyu;Hu, Bing;Ratcliffe, Ian;Senan, Chandra;Yang, Jixin;Williams, Peter A. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2020 | Protein/polysaccharide intramolecular electrostatic complex as superior food-grade foaming agent, Food Hydrocolloids, 101. [DOI] Xu, Yao;Yang, Nan;Yang, Jixin;Hu, Jing;Zhang, Ke;Nishinari, Katsuyoshi;Phillips, Glyn O.;Fang, Yapeng |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2020 | Pomegranate seed oil stabilized with ovalbumin glycated by inulin: Physicochemical stability and oxidative stability, Food Hydrocolloids, 102. [DOI] Hu, Bing;Wang, Kangping;Han, Lingyu;Zhou, Bin;Yang, Jixin;Li, Shugang |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2020 | Prediction of high-quality reservoirs using the reservoir fluid mobility attribute computed from seismic data, Journal of Petroleum Science and Engineering, 190. [DOI] Zhang, Yijiang;Wen, Xiaotao;Jiang, Lian;Liu, Jie;Yang, Jixin;Liu, Songming |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2019 | Comparative study on foaming and emulsifying properties of different beta-lactoglobulin aggregates, Food & function, 10. [DOI] Hu, Jing;Yang, Jixin;Xu, Yao;Zhang, Ke;Nishinari, Katsuyoshi;Phillips, Glyn O.;Fang, Yapeng |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2019 | Effect of arabinogalactan protein complex content on emulsification performance of gum arabic, Carbohydrate Polymers, 224. [DOI] Han, Lingyu;Hu, Bing;Ma, Ruixiang;Gao, Zhiming;Nishinari, Katsuyoshi;Phillips, Glyn O.;Yang, Jixin;Fang, Yapeng |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2019 | Interfacial and emulsifying properties of the electrostatic complex of beta-lactoglobulin fibril and gum Arabic (Acacia Seyal), Colloids and Surfaces A: Physicochemical and Engineering Aspects, 562. [DOI] Gao, Zhiming;Huang, Ying;Hu, Bing;Zhang, Ke;Xu, Xiaofei;Fang, Yapeng;Nishinari, Katsuyoshi;Phillips, Glyn O.;Yang, Jixin |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2019 | Preparation and emulsifying properties of trace elements fortified gum arabic, Food Hydrocolloids, 88. [DOI] Hu, Bing;Han, Lingyu;Kong, Huiling;Nishinari, Katsuyoshi;Phillips, Glyn O.;Yang, Jixin;Fang, Yapeng |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2018 | Effects of temperature and solvent condition on phase separation induced molecular fractionation of gum arabic/hyaluronan aqueous mixtures, International Journal of Biological Macromolecules, 116. [DOI] Hu, Bing;Han, Lingyu;Gao, Zhiming;Zhang, Ke;Al-Assaf, Saphwan;Nishinari, Katsuyoshi;Phillips, Glyn O.;Yang, Jixin;Fang, Yapeng |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2018 | A combined time-resolved infrared and density functional theory study of the lowest excited states of 9-fluorenone and 2-naphthaldehyde, CHEMICAL PHYSICS. [DOI] | Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2014 | Synthesis and antioxidant properties of gum arabic-stabilized selenium nanoparticles, International Journal of Biological Macromolecules, 65. [DOI] Kong, Huiling;Yang, Jixin;Zhang, Yifeng;Fang, Yapeng;Nishinari, Katsuyoshi;Phillips, Glyn O. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2011 | A route to diffusion embedding of CdSe/CdS quantum dots in fluoropolymer microparticles, GREEN CHEMISTRY, 13. [DOI] Popov, Vladimir K.;Bagratashvili, Viktor N.;Krotova, Larisa I.;Rybaltovskii, Aleksei O.;Smith, David C.;Timashev, Peter S.;Yang, Jixin;Zavorotnii, Yurii. S.;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2009 | Continuous flow supercritical chemical fluid deposition of optoelectronic quality CdS, Yang, Jixin;Hyde, Jason R;Wilson, James W;Mallik, Kanad;Sazio, Pier;Brien, Paul;Malik, Mohamed A;Afzaal, Mohammad;Nguyen, Chinh Q;George, Michael W;Howdle, Steven M;Smith, David C |
Newyddiadur arall |
2009 | Supercritical chemical fluid deposition of high quality compound semiconductors, Afzaal, Mohammad;Aksomaityte, Gabriele;Brien, Paul;Cheng, Fei;George, Michael W;Hector, Andrew L;Howdle, Steven M;Hyde, Jason R;Levason, William;Malik, Mohamed A;Mallik, Kanad;Nguyen, Chinh Q;Reid, Gillian;Sazio, Pier;Smith, David C;Webster, Michael;Wilson, James W;Yang, Jixin;Zhang, Wenjian |
Newyddiadur arall |
2009 | Deposition in supercritical fluids: from silver to semiconductors, JOURNAL OF MATERIALS CHEMISTRY. [DOI] | Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2008 | A novel synthetic route to metal-polymer nanocomposites by in situ suspension and bulk polymerizations, European Polymer Journal, 44. [DOI] Yang, Jixin;Hasell, Tom;Wang, Wenxin;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2008 | Highly efficient surface enhanced Raman scattering using microstructured optical fibers with enhanced plasmonic interactions, Applied Physics Letters, 92. [DOI] Peacock, Anna C.;Amezcua-Correa, Adrian;Yang, Jixin;Sazio, Pier J. A.;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2008 | Preparation of hybrid polymer nanocomposite microparticles by a nanoparticle stabilised dispersion polymerisation, JOURNAL OF MATERIALS CHEMISTRY, 18. [DOI] Yang, Jixin;Hasell, Tom;Wang, Wenxin;Li, Jun;Brown, Paul D.;Poliakoff, Martyn;Lester, Edward;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2007 | A facile synthetic route to aqueous dispersions of silver nanoparticles, Materials Letters, 61. [DOI] Hasell, Tom;Yang, Jixin;Wang, Wenxin;Brown, Paul D.;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2007 | Surface-enhanced Raman scattering using microstructured optical fiber substrates, Advanced Functional Materials, 17. [DOI] Amezcua-Correa, Adrian;Yang, Jixin;Finlayson, Chris E.;Peacock, Anna C.;Hayes, John R.;Sazio, Pier J. A.;Baumberg, Jeremy J.;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2007 | Microscopic spacial effect on the dispersion polymerization in ScCO2, European Polymer Journal, 43. [DOI] Yang, Jixin;Wang, Wenxin;Sazio, Pier J. A.;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2007 | Preparation of polymer-nanoparticle composite beads by a nanoparticle-stabilised suspension polymerisation, JOURNAL OF MATERIALS CHEMISTRY, 17. [DOI] Hasell, Tom;Yang, Jixin;Wang, Wenxin;Li, Jun;Brown, Paul D.;Poliakoff, Martyn;Lester, Edward;Howdle, Steven M. |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2004 | Unraveling the photochemistry of Fe(CO)(5) in solution: Observation of Fe(CO)(3) and the conversion between Fe-3(CO)(4) and Fe-1(CO)(4)(solvent), Journal of the American Chemical Society, 126. [DOI] Portius, P;Yang, JX;Sun, XZ;Grills, DC;Matousek, P;Parker, AW;Towrie, M;George, MW |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2004 | Characterization by time-resolved UV-Vis and infrared absorption spectroscopy of an intramolecular charge-transfer state in an organic electron-donor-bridge-acceptor system, PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES, 3. [DOI] Hviid, L;Verhoeven, JW;Brouwer, AM;Paddon-Row, MN;Yang, JX |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2003 | Using picosecond and nanosecond time-resolved infrared spectroscopy for the investigation of excited states and reaction intermediates of inorganic systems, Dalton Transactions. [DOI] Kuimova, MK;Alsindi, WZ;Dyer, J;Grills, DC;Jina, OS;Matousek, P;Parker, AW;Portius, P;Sun, XZ;Towrie, M;Wilson, C;Yang, JX;George, MW |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2000 | Reaction of C2H with NO and O-2 studied by TR-FTIR emission spectroscopy, CHEMICAL PHYSICS LETTERS, 326. Su, HM;Yang, JX;Ding, YH;Feng, WH;Kong, FN |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
2000 | Investigation into the reactivity of M(eta(5)-C5R5)(CO)(2)(alkane) (M = Mn or Re; R = H, Me or Ph; alkane = n-heptane or cyclopentane) and Re(eta(5)-C5H5)(CO)(2)(Xe) in solution at cryogenic and room temperature, JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS. Childs, GI;Colley, CS;Dyer, J;Grills, DC;Sun, XZ;Yang, JX;George, MW |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
1999 | The reaction of CH2(B-3(1))+N2O studied by time-resolved Fourier transform infrared spectroscopy, CHEMICAL PHYSICS LETTERS, 303. Su, HM;Yang, JX;Zhong, JX;Kong, FN |
Cyfnodolyn a Adolygwyd gan Gymheiriaid |
Anrhydeddau a Gwobrau
Dyddiad | Teitl | Corff Dyfarnu |
---|---|---|
2021 | Prifysgol Glyndwr Wrecsam Gwobr Flynyddol Undeb y Myfyrwyr Darlithydd Gorau yng Nghyfadran y Celfyddydau, Gwyddoniaeth a Thechnoleg | Prifysgol Glyndwr Wrecsam |
2022 | Prifysgol Glyndwr Wrecsam Gwobr Staff Uchod a Thu Hwnt --- canmoliaeth am y “Wobr am Wirfoddoli” | Prifysgol Glyndwr Wrecsam |
Cymdeithasau Proffesiynol
Cymdeitha | Ariennir gan | Hyd/O |
---|---|---|
Cymdeithas Frenhinol Gemeg | Cemegydd Siartredig | 2011 |
Cymdeithas Frenhinol Gemeg | Athro Gwyddoniaeth Siartredig | 2017 |
Cymdeithas Frenhinol Gemeg | Aelod Llawn | 2009 |
Advance HE | Cymrodoriaeth Uwch | 2018 |
Pwyllgorau
Enw | Hyd/O |
---|---|
Pwyllgor Ymchwil | 2022 |
Cyflogaeth
Cyflogwr | Swydd | Hyd/O |
---|---|---|
Prifysgol Glyndwr Wrecsam | Uwch Ddarlithydd mewn Cemeg | 2011 - 2022 |
Prifysgol Glyndwr Wrecsam | Ddarlithydd mewn Cemeg | 2009 - 2011 |
Prifysgol Nottingham | Cymrawd Ymchwil | 2003 - 2009 |
Addysg
Sefydliad | Cymhwyster | Pwnc | Hyd/O |
---|---|---|---|
Prifysgol Nottingham | PhD | Cemeg Anorganig | 1999 - 2003 |
Prifysgol Nanjing | BSc | Cemeg Amgylcheddol | 1992 - 1996 |
Prifysgol Glyndwr Wrecsam | Tystysgrif Ôl-raddedig mewn e-ddysgu | Addysg | 2011 - 2013 |
Prifysgol Glyndwr Wrecsam | Tystysgrif Ôl-raddedig mewn Datblygiad Proffesiynol mewn Addysg Uwch | Addysg | 2009 - 2010 |
Chinese Academy of Sciences | MSc | Cemeg Ffisegol | 1996 - 1999 |
Ieithoedd
Ieithoedd | Darllen | Ysgrifennu | Siarad |
---|---|---|---|
Saesneg | Hyfedredd Proffesiynol Llawn | Hyfedredd Proffesiynol Llawn | Hyfedredd Proffesiynol Llawn |
Tseiniaidd | Hyfedredd Brodorol / Dwyieithog | Hyfedredd Brodorol / Dwyieithog | Hyfedredd Brodorol / Dwyieithog |
Adolygydd neu Olygydd Cylchgronau
Enw'r Cyfnodolyn | Gweithgaredd | Hyd/O |
---|---|---|
Food Hydrocolloids | Adolygydd Cymheiriaid | 2020 - 2023 |
Journal of Materials Chemistry | Adolygydd Cymheiriaid | 2009 - 2020 |
Green Chemistry | Adolygydd Cymheiriaid | 2010 - 2020 |
RSC Advance | Adolygydd Cymheiriaid | 2015 - 2020 |
Chemical Communications | Adolygydd Cymheiriaid | 2015 - 2020 |
Gweithgareddau Proffesiynol Eraill
Hyd/O | Gweithgaredd |
---|---|
2016-2020 | Arholwr allanol MSc Gwyddor Ddadansoddol ym Mhrifysgol Bradford |
2020-2025 | Aseswyr panel o geisiadau Athro Gwyddoniaeth Siartredig ac ailddilysiadau ar gyfer y Gymdeithas Gemeg Frenhinol |
2020-2024 | Arholwr allanol pwnc cemeg anorganig ym Mhrifysgol Cumbria |
2022 | Arholwr allanol viva PhD ym Mhrifysgol Bangor |
2022 | Arholwr allanol viva PhD ym Mhrifysgol Kingston |
2023-2024 | Golygydd Gwadd cyfnodolyn MDPI 'Materials' |
Gweithgareddau Allgymorth
Teitl | Disgrifiad |
---|---|
Water Purification Workshop | Bydd y gweithdy hwn yn dysgu myfyrwyr sut mae gwahanol ddulliau’n cael eu defnyddio i buro dŵr a’i wneud yn yfadwy i bobl. Mae llawer o wybodaeth gorfforol, gemegol a biolegol yn rhan o'r gweithgareddau hyn. |
Spectroscopy In a Suitcase | Rwyf wedi cynnal dwsinau o weithdai yn yr ysgolion/colegau rhanbarthol drwy gymryd sbectromedr FTIR cludadwy i roi profiad ymarferol o ddadansoddi sbectrol i’r myfyrwyr. |
Partneriaethau Ymgynghori a Throsglwyddo Gwybodaeth
Cleient | Disgrifiad | Hyd/O |
---|---|---|
Dyesol Ltd | PTG byrrach ar "Titania semiconductor layers" a ariennir gan Lywodraeth Cynulliad Cymru (£42320, Arweinydd Academaidd) | 2010 -2011 |
Diddordebau Addysgu
Cemeg Ddadansoddol a Chemeg Deunyddiau
Rhaglenni/ Modiwlau wedi'u Cydlynu
Teitl | Pwnc |
---|---|
Maths and Statistics for Science | SCI442 |
Laboratory Instrumental Analysis | SCI527 |
Analytical Methods in Applied Science | SCI545 |
Instrumental Analysis | SCI526 |
Forensic Analytical Chemistry | SCI722 |
Introduction to Science | LND309 |
Introduction to Chemistry | SCI443 |
Nanomedicine and Biochemistry Futures | SCI640 |
Ôl-raddedigion Presennol
Enw | Gradd |
---|---|
Kevin Jones | PHD |