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Shear behavior and damage evolution of the interface between rough rock and cemented tailings backfill (2023)
Journal Article
Xiu, Z., Meng, F., Wang, F., Wang, S., Ji, Y., & Hou, Q. (in press). Shear behavior and damage evolution of the interface between rough rock and cemented tailings backfill. Theoretical and Applied Fracture Mechanics, 125, 103887. https://doi.org/10.1016/j.tafmec.2023.103887

The shear behavior of the interface between rock and cemented tailings backfill (CTB) is extremely critical to the backfill design and stability of the backfilled underground mined-out areas. The corresponding shear behavior and surface damage can be... Read More about Shear behavior and damage evolution of the interface between rough rock and cemented tailings backfill.

An analytical model for the triaxial compressive stress-strain relationships of Cemented Pasted Backfill (CPB) with different curing time (2021)
Journal Article
Xiu, Z., Wang, S., Ji, Y., Wang, F., Ren, F., & Wang, P. (2021). An analytical model for the triaxial compressive stress-strain relationships of Cemented Pasted Backfill (CPB) with different curing time. Construction and Building Materials, 313, 125554. https://doi.org/10.1016/j.conbuildmat.2021.125554

The strength of Cemented Pasted Backfill (CPB) is gradually enhanced with the increase of curing time. It is of great significance to study the stress-strain behaviors of CPB with different curing time under triaxial loading conditions. The triaxial... Read More about An analytical model for the triaxial compressive stress-strain relationships of Cemented Pasted Backfill (CPB) with different curing time.

Loading rate effect on the uniaxial compressive strength (UCS) behavior of cemented paste backfill (CPB) (2020)
Journal Article
Xiu, Z., Wang, S., Ji, Y., Wang, F., Ren, F., & Nguyen, V. (2021). Loading rate effect on the uniaxial compressive strength (UCS) behavior of cemented paste backfill (CPB). Construction and Building Materials, 271, 121526. https://doi.org/10.1016/j.conbuildmat.2020.121526

Underground mined-out areas and tailings are the two major harmful consequences from metal mining industry. Cemented Paste Backfill (CPB) method, refilling the tailings back to the underground mined-out areas, has been widely used worldwide. Clear un... Read More about Loading rate effect on the uniaxial compressive strength (UCS) behavior of cemented paste backfill (CPB).

Urban cooling : which façade orientation has the most impact on a microclimate? (2020)
Journal Article
Taleghani, M., Swan, W., Johansson, E., & Ji, Y. (2021). Urban cooling : which façade orientation has the most impact on a microclimate?. Sustainable Cities and Society, 64, 102547. https://doi.org/10.1016/j.scs.2020.102547

Deploying solar reflective materials on urban surfaces is known as an effective heat mitigation strategy. Several studies have shown their cooling impacts; however, most of them have focused on rooftops rather than facades. The novelty of this paper... Read More about Urban cooling : which façade orientation has the most impact on a microclimate?.

Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria (2020)
Journal Article
Munonye, C., & Ji, Y. (2021). Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria. Building Services Engineering Research and Technology, 42(1), 5-25. https://doi.org/10.1177/0143624420911148

Field study was conducted in naturally ventilated primary school buildings in a warm and humid environment in Imo State, Nigeria to determine the thermal comfort perception of young children (aged 7–12 years) and to understand the thermal conditions... Read More about Evaluating the perception of thermal environment in naturally ventilated schools in a warm and humid climate in Nigeria.

Assessing low energy school buildings using the new Building Bulletin 101 (2019)
Journal Article
Ji, Y., & Du, J. (2019). Assessing low energy school buildings using the new Building Bulletin 101. WEENTECH proceedings in energy, 5(2), 43-52. https://doi.org/10.32438/WPE.7019

This paper reports an assessment of a school building design using the newly published Building Bulletin 101 2018. The requirements on thermal comfort and CO2 based indoor air quality from this new guidance document are very different from its earlie... Read More about Assessing low energy school buildings using the new Building Bulletin 101.

Rating the components of indoor environmental quality in students classrooms in warm humid climate of Uli, Nigeria (2019)
Journal Article
Munonye, C., & Ji, Y. (2019). Rating the components of indoor environmental quality in students classrooms in warm humid climate of Uli, Nigeria

The indoor environment of classrooms needs to be comfortable for the occupants to perform their class work effectively. To achieve this objective, architects and engineers need to be proactive at the early design stage by considering the very compone... Read More about Rating the components of indoor environmental quality in students classrooms in warm humid climate of Uli, Nigeria.

Analyzing the deformation of multilayered saturated sandy soils under large building foundation (2019)
Journal Article
Li, C., Xiu, Z., Ji, Y., Wang, F., & Chan, A. (2019). Analyzing the deformation of multilayered saturated sandy soils under large building foundation. KSCE Journal of Civil Engineering, 23, 3764-3776. https://doi.org/10.1007/s12205-019-0187-y

The generalized plasticity theory has been subject of much research in geomechanics. The Pastor-Zienkiewicz model and its modified versions are among these. For large foundations resting on multilayered soils the actual loading is often non-linear. I... Read More about Analyzing the deformation of multilayered saturated sandy soils under large building foundation.

Retrofit modelling of existing dwellings in the UK : the Salford Energy House case study (2019)
Journal Article
Ji, Y., Lee, A., & Swan, W. (2019). Retrofit modelling of existing dwellings in the UK : the Salford Energy House case study. International Journal of Building Pathology and Adaptation, 37(3), 344-360. https://doi.org/10.1108/IJBPA-12-2018-0106

There is a clear consensus that improving energy efficiency of existing housing stock is
necessary to meet the UK’s legally binding carbon emission targets by 2050. The aim of this
research is to assess the energy saving potentials from building re... Read More about Retrofit modelling of existing dwellings in the UK : the Salford Energy House case study.

Building dynamic thermal model calibration using the Energy House facility at Salford (2019)
Journal Article
Ji, Y., Lee, A., & Swan, W. (2019). Building dynamic thermal model calibration using the Energy House facility at Salford. Energy and Buildings, 191(May 19), 224-234. https://doi.org/10.1016/j.enbuild.2019.03.001

Thermal modelling tools have widely been used in the construction industry at the design stage, either for new build or retrofitting existing buildings, providing data for informed decision-making. The accuracy of thermal models has been subject of m... Read More about Building dynamic thermal model calibration using the Energy House facility at Salford.

The impact of gas flare on oil fields' enviornments (2017)
Presentation / Conference
Ogbonda, U., Ji, Y., Coates, S., & Bichard, E. (2017, October). The impact of gas flare on oil fields' enviornments. Presented at Academic 10th International Conference, Ottawa, Canada

Nigeria, Africa’s most populous nation and leading oil producer with the second-largest natural gas reserves in
sub-Saharan Africa, is faced with energy deficiency. Despite efforts to diversify, the economy remains heavily dependent on
oil accounti... Read More about The impact of gas flare on oil fields' enviornments.

The effect of gas flare on the health of schoolchildren in the Niger delta area of Nigeria (2017)
Journal Article
Ogbonda, U., & Ji, Y. (2017). The effect of gas flare on the health of schoolchildren in the Niger delta area of Nigeria. International journal of humanities and social science research (Delhi), 3, 10-15

The proximity of schools to gas flaring sites and the use of simple ventilation systems in school buildings with currently no regulation or laid down blueprint during design and construction in an environment prone to adverse environmental hazards ca... Read More about The effect of gas flare on the health of schoolchildren in the Niger delta area of Nigeria.

A critique of the ventilation system used for public schools around gas flaring sites in the Nigeria Niger Delta area (2017)
Presentation / Conference
Ogbonda, U., & Ji, Y. (2017, July). A critique of the ventilation system used for public schools around gas flaring sites in the Nigeria Niger Delta area. Presented at Healthy Buildings Europe 2017, Lublin, Poland

The consideration of ventilation requirements in school buildings has significantly become a critically important factor in the academic performance of pupils in schools. Their health, concentration and performance output have been linked to the amou... Read More about A critique of the ventilation system used for public schools around gas flaring sites in the Nigeria Niger Delta area.

Thermal responses of single zone offices on existing near-extreme summer weather data (2017)
Journal Article
Ji, Y., Korolija, I., & Zhang, Y. (2018). Thermal responses of single zone offices on existing near-extreme summer weather data. Building Simulation, 11(1), 15-35. https://doi.org/10.1007/s12273-017-0367-y

There have been a number of attempts in the past to define “near extreme” weather for facilitating overheating analysis in free running buildings. The most recently efforts include CIBSE latest release of Design Summer Year (DSY) weather using multip... Read More about Thermal responses of single zone offices on existing near-extreme summer weather data.

Assessing overheating of the UK existing dwellings – a case study of replica Victorian end terrace house (2014)
Journal Article
Ji, Y., Fitton, R., Swan, W., & Webster, P. (2014). Assessing overheating of the UK existing dwellings – a case study of replica Victorian end terrace house. Building and Environment, 77, 1-11. https://doi.org/10.1016/j.buildenv.2014.03.012

This paper aims to investigate the likely thermal performance of a unique pre-1919 Victorian case study property by using both current and future projected weather data after a deep retrofit. The property is a re-construction within an environmental... Read More about Assessing overheating of the UK existing dwellings – a case study of replica Victorian end terrace house.

The role of turbulent diffusion on thermal comfort in naturally ventilated buildings (2010)
Presentation / Conference
Kaye, N., Flynn, M., Cook, M., & Ji, Y. (2010, May). The role of turbulent diffusion on thermal comfort in naturally ventilated buildings. Presented at The Fifth International Symposium on Computational Wind Engineering (CWE2010), Chapel Hill, North Carolina, USA

In recent years there has been considerable effort to develop simple models for wind and buoyancy induced natural ventilation in buildings that can be used to improve existing building thermal simulation tools. These models have been successful at pr... Read More about The role of turbulent diffusion on thermal comfort in naturally ventilated buildings.

The role of diffusion on the interface thickness in a ventilated filling box (2010)
Journal Article
Kaye, N., Flynn, M., Cook, M., & Ji, Y. (2010). The role of diffusion on the interface thickness in a ventilated filling box. Journal of Fluid Mechanics, 652, 195-205. https://doi.org/10.1017/S0022112010000881

We examine the role of diffusivity, whether molecular or turbulent, on the steady-state stratification in a ventilated filling box. The buoyancy-driven displacement ventilation model of Linden et al. (J. Fluid Mech., vol. 212, 1990, p. 309) predicts... Read More about The role of diffusion on the interface thickness in a ventilated filling box.