Quantum Hall Effect in Bilayer Graphene: Disorder Effect and Quantum Phase Transition (2008)
Ma, Rong, Sheng, L., Shen, R., Liu, M., Sheng, D. N.
We numerically study the quantum Hall effect (QHE) in bilayer graphene based on tight-binding model in the presence of disorder. Two distinct QHE regimes are identified in the full energy band...
One-quasiparticle bands in neutron-rich 187W (2008)
Shizuma, T., Ishii, T., Makii, H., Hayakawa, T., Matsuda, M., Shigematsu, S., ...
Modest spin states in neutron-rich 187W have been populated by using a 186W(18O,17O) one-neutron transfer reaction. Negative-parity bands previously known are extended to higher spin, and two...
P. Chaverri, M. Liu, K.T. Hodge
The present taxonomic revision deals with Neotropical species of three entomopathogenic genera that were once included in Hypocrella s. l.: Hypocrella s. str. (anamorph Aschersonia), Moelleriella...
A Smart Logic for Conference Room Terminal Box of Single Duct VAV System (2007)
Yu, Y., Xu, K., Cho, Y., Liu, M.
In a modern office building, most occupied rooms are relatively isolated from the outdoor air climate conditions. To ensure acceptable indoor air quality (IAQ), ASHRAE 62 explains how to design and...
Achieving High Chilled Water Delta T Without Blending Station (2007)
Wang, Z., Wang, G., Xu, K., Yu, Y., Liu, M.
Typically a blending station is designed to ensure that its user is able to avoid low chilled water return temperature in the district cooling system. When the chilled water return temperature drops...
Integrated Demand Controlled Ventilation for Single Duct VAV System with Conference Rooms (2007)
Yu, Y., Liu, M., Cho, Y., Xu, K.
Single duct variable air volume (VAV) systems are widely used in office buildings to achieve energy savings. It supplies proper amount of conditioned air to satisfy both the load and the ventilation...
VAV System Optimization through Continuous Commissioning in an Office Building (2007)
This paper demonstrates the implementation of new innovative technologies during continuous commissioning (CC®) practices to improve building operations and reduce energy costs. The case study...
CC Retrofits and Optimal Controls for Hot Water Systems (2007)
Boilers account for about 42% of space heating energy consumption in commercial and multifamily buildings in the U.S. Boilers are typically designed to be oversized, with redundant safety factors and...
Wu, L., Pang, X., Liu, M., Wang, J., Lewis, T. G.
The Continuous Commissioning Leading Project (CCLEP) process is an ongoing process to apply Continuous Commissioning (CC) system optimization theory and advanced technologies in commercial retrofit...
Economizer Control Using Mixed Air Enthalpy (2007)
Enthalpy economizer can theoretically save more energy than temperature based economizer. However, the requirement of outdoor air humidity measurement in the traditional enthalpy economizer control...
Supply Fan Control for Constant Air Volume Air Handling Units (2007)
Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant...
Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles (2007)
Wang, G., Wang, Z., Xu, K., Liu, M
Most air handling units (AHUs) in commercial buildings have an air economizer cycle for free cooling under certain outside air conditions. During the economizer cycle, the outside air and return air...
Liu, M., Feng, J., Wang, Z., Wu, L., Zheng, K., Pang, W.
As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the...
Liu, M., Zheng, K., Wu, L., Wang, Z., Johnson, C.
In Part 1 of this paper, the theoretical models, integrating the fan airflow, fan head, air leakage factors, are developed to analyze the impacts of the static pressure reset on both pressure...
A Smart Logic for Conference Room Terminal Box of Single Duct VAV System (2007)
Yu, Y., Xu, K., Cho, Y., Liu, M.
In a modern office building, most occupied rooms are relatively isolated from the outdoor air climate conditions. To ensure acceptable indoor air quality (IAQ), ASHRAE 62 explains how to design and...
Achieving High Chilled Water Delta T Without Blending Station (2007)
Wang, Z., Wang, G., Xu, K., Yu, Y., Liu, M.
Typically a blending station is designed to ensure that its user is able to avoid low chilled water return temperature in the district cooling system. When the chilled water return temperature drops...
Integrated Demand Controlled Ventilation for Single Duct VAV System with Conference Rooms (2007)
Yu, Y., Liu, M., Cho, Y., Xu, K.
Single duct variable air volume (VAV) systems are widely used in office buildings to achieve energy savings. It supplies proper amount of conditioned air to satisfy both the load and the ventilation...
VAV System Optimization through Continuous Commissioning in an Office Building (2007)
This paper demonstrates the implementation of new innovative technologies during continuous commissioning (CC®) practices to improve building operations and reduce energy costs. The case study...
CC Retrofits and Optimal Controls for Hot Water Systems (2007)
Boilers account for about 42% of space heating energy consumption in commercial and multifamily buildings in the U.S. Boilers are typically designed to be oversized, with redundant safety factors and...
Wu, L., Pang, X., Liu, M., Wang, J., Lewis, T. G.
The Continuous Commissioning Leading Project (CCLEP) process is an ongoing process to apply Continuous Commissioning (CC) system optimization theory and advanced technologies in commercial retrofit...
Economizer Control Using Mixed Air Enthalpy (2007)
Enthalpy economizer can theoretically save more energy than temperature based economizer. However, the requirement of outdoor air humidity measurement in the traditional enthalpy economizer control...
Supply Fan Control for Constant Air Volume Air Handling Units (2007)
Since terminal boxes do not have a modulation damper in constant volume (CV) air handling unit (AHU) systems, zone reheat coils have to be modulated to maintain the space temperature with constant...
Air Handling Unit Supply Air Temperature Optimization During Economizer Cycles (2007)
Xu, K., Liu, M., Wang, G., Wang, Z.
Most air handling units (AHUs) in commercial buildings have an air economizer cycle for free cooling under certain outside air conditions. During the economizer cycle, the outside air and return air...
Liu, M., Feng, J., Wang, Z., Wu, L., Zheng, K., Pang, W.
As for a variable air volume (VAV) system, the air duct static pressure is a typical control variable maintained by modulating supply fan speed. The static pressure equals to the summation of the...
Liu, M., Zheng, K., Wu, L., Wang, Z., Johnson, C.
In Part 1 of this paper, the theoretical models, integrating the fan airflow, fan head, air leakage factors, are developed to analyze the impacts of the static pressure reset on both pressure...
From chelating precursor to perovskite oxides and hollow fiber membranes (2007)
Liu, S., Liu, M., Shao, Z., Diniz Da Costa, J.C., Xu, Z.P.
Perovskite Ba0.5Sr0.5Co0.8Fe0.2O3-delta (BSCF) is a promising mixed-conducting ceramic membrane material in addition to being a good electrode catalyst for solid oxide fuel cells. In this study, BSCF...
Excited states in neutron-rich 188W produced by an 18O-induced 2-neutron transfer reaction (2006)
Shizuma, T., Ishii, T., Makii, H., Hayakawa, T., Shigematsu, S., Matsuda, M., ...
This paper presents a new building energy monitoring and pump speed control method. The pump speed is controlled to maintain the system resistance at an optimized value to approach the best pump...
Optimal Outside Air Control for Air Handling Units with Humidity Control (2006)
Most air handling units (AHUs) in commercial buildings have the (air) economizer cycle to use outside air for free cooling under certain outside air conditions. Ideally the economizer cycle is...
Study of a Fault Analysis System for a Heat Supply Network Based on GIS (2006)
Zou, P., Liu, M., Tang, H., Wang, X., Li, N., Wang, W.
Conventional methods cannot satisfy the request of the layout and operation management in a heating system. The geographical information system (GIS) in a heat supply network can realize information...
Optimal Terminal Box Control for Single Duct Air-Handling Units (2006)
Cho, Y., Vondal, J., Wang, G., Liu, M.
Terminal boxes maintain room temperature by modulating supply air temperature and airflow in building HVAC systems. Terminal boxes with conventional control sequences often supply inadequate airflow...
Case Study of Continuous Commissioning in an Office Building (2006)
The case study building is a two-story office facility with total floor area of 31000 square feet, of which most is open space office. The HVAC system operates 24 hours a day, 7 days a week. An...
Effect of pore packing defects in 2-D ordered mesoporous carbons on ionic transport (2006)
Wang, DW, Li, F, Fang, HT, Liu, M, Lu, GQ, Cheng, HM
Ordered mesoporous materials show great importance in energy, environmental, and chemical engineering. The diffusion of guest species in mesoporous networks plays an important role in these...
Managing Price Risk in a Multimarket Environment (2006)
In a competitive electricity market, a generation company (Genco) can manage its trading risk through trading electricity among multiple markets such as spot markets and contract markets. The...
A survey on risk management in electricity markets (2006)
In the electricity market, electricity prices are substantially more volatile than any other commodity price. Confronting with this extreme price volatility, more and more market participants are...
Antagonism of ATP responses at P2X receptor subtypes by the pH indicator dye, Phenol red (2005)
King, B.F., Liu, M., Townsend-Nicholson, A., Pfister, J., Padilla, F., Ford, A.P., ...
Many types of culture media contain a pH-sensitive dye. One commonly occurring dye, Phenol red sodium (Na+) salt, was tested for blocking activity at rat P2X1-4 receptors (P2X1-4Rs) expressed in...
Antagonism of ATP responses at P2X receptor subtypes by the pH indicator dye, Phenol red (2005)
King, B.F., Liu, M., Townsend-Nicholson, A., Pfister, J., Padilla, F., Ford, A.P., ...
1. Many types of culture media contain a pH-sensitive dye. One commonly occurring dye, Phenol red sodium (Na+) salt, was tested for blocking activity at rat P2X1-4 receptors (P2X1-4Rs) expressed in...
Claridge, D. E., Liu, M., Painter, F., Wang, G.
Prepared for the National Association of State Energy Officials
Sound damping in ferrofluids: Magnetically enhanced compressional viscosity (2003)
Müller, H. W., Jiang, Y. M., Liu, M.
The damping of sound waves in magnetized ferrofluids is investigated and shown to be considerably higher than in the nonmagnetized case. This fact may be interpreted as a field- enhanced, effective...
Reply to "Comment on 'Structure of ferrofluid dynamics' " (2003)
Derived from general principles, the recently introduced ferrofluid dynamics is structurally identical to Shliomis' theory for incompressional flows, yet distinctly different for compressional ones....
Implementation of the Laboratory Air Handling Unit Systems (LAHU) (2003)
The LAHU system has been designed, installed, and commissioned in a large university research building. This paper provides detailed information about the demonstration project, including the...
Application of Innovative Technologies During Continuous Commissioning (2003)
Joo, I. S., Liu, M., Wang, J., Hansen, K.
This paper demonstrates the implementation of new innovative technologies during continuous commissioning practices to improve building operations and reduce energy costs. A 30-year-old typical...
Optimizing HVAC Control to Improve Building Comfort and Energy Performance (2003)
Song, L., Joo, I., Dong, D., Liu, M., Wang, J., Hansen, K., ...
This paper demonstrates the benefits of optimal control in well-designed and operated buildings using a case study. The case study building was built in 2001. The HVAC and control systems have been...
Utilization of the Continuous Commissioning® process is presented in the case of the Consolidated Mission Support Center office building at Travis Air Force Base in Travis, California. The CC®...
Development of By-Pass Blending Station System (2003)
Liu, M., Barnes, D., Bunz, K., Rosenberry, N.
A new building blending station system named by-pass blending station (BBS) has been developed to reduce building pump energy consumption in both district heating and cooling systems. Theoretical...
Development of In-Situ Fan Curve Measurement with One Airflow Measurement (2003)
Liu, G., Joo, I. S., Song, L., Liu, M.
Fan airflow is the key parameter for air volume tracking control in variable air volume systems. One of the airflow measurement methods is to determine airflow using the fan speed, fan head, and fan...
Integrated Chiller System Reduce Building Operation and Maintenance Costs in Cold Climates (2003)
Although water-cooled chillers are more energy efficient than air-cooled chillers, a majority of chilled water systems use air-cooled chillers. In cold weather climates, air-cooled chillers are...
In the electricity market, it is very important for generation companies (Gencos) to decide how to sell energy among different transaction markets in order to maximize profits with relatively low...
Shear-excited sound in magnetic fluid (2002)
Perceptible sound is shown to be excited in ferrofluids by the shear motion of a rigid plate, if the fluid is exposed to a magnetic field oblique both to the plate and to the direction of...
Convective nonlinearities for the orientational tensor order parameter in polymeric systems (2002)
Pleiner, Harald, Liu, M., Brand, H. R.
Nonlinear hydrodynamic equations for polymeric fluids with permanent or transient orientational order are discussed. We start from a description that utilizes the well-known nematohydrodynamic...
Optimization of Multi-Stack Exhaust Systems - New System Design Application (2002)
Wang, G., Cui, Y., Yuill, D., Liu, M.
Both analytical and numerical optimization methods have been developed to optimize multi-stack exhaust systems for application in new system designs. In these systems the combined airflow capacity of...
Liu, M., Abbas, M., Zhu, Y., Claridge, D. E.
A new terminal box operation and control strategy, airflow reset, is developed to improve building comfort and energy efficiency during unoccupied and lightly occupied hours. The airflow reset lowers...
Optimal Airflow Control for Laboratory Air Handling Unit (LAHU) Systems (2002)
An optimal airflow control method and procedure have been developed for laboratory air handing unit (LAHU) systems using linear optimization theories. The optimal airflow control minimizes the...
An airflow control method has been developed for variable air volume (VAV) systems. This airflow control method is named VSD volumetric tracking (VSDVT) since both the supply and return airflows are...
Variable Speed Drive (VSD) Applications in Dual-Duct Constant Volume Systems (2002)
Joo, I., Liu, M., Conger, K., Wang, G.
Models have been developed for static pressure and potential supply fan energy savings by using variable speed drive (VSD) in dual-duct constant volume systems. Experiments have been performed using...
Economizer Applications in Dual-Duct Air-Handling Units (2002)
This paper provides analytical tools and engineering methods to evaluate the feasibility of the economizer for dual-duct air-handling units. The results show that the economizer decreases cooling...
The Office Air Handling Unit versus the Two Dedicated Air Handling Unit System (2002)
Both analytical and the numerical methods have been developed to compares the energy performance of the OAHU systems and the two-AHU (TAHU) system. The OAHU system saves up to 1.85 kilojoules heating...
Wei, G., Turner, W. D., Claridge, D., Liu, M.
The supply air temperature set point for a singleduct constant air volume air handling unit (AHU) system is often reset based on either return air temperature or outside air temperature in order to...
Liu, M., King, B.F., Dunn, P.M., Rong, W., Townsend-Nicholson, A., Burnstock, G.
Using voltage-clamp procedures on Xenopus oocytes, agonist-evoked ionic currents by P2X receptors resulting from the coexpression of P2X2 and P2X3 subunits were compared against the agonist responses...
An Integrated Air Handling Unit System for Large Commercial Buildings (2001)
This paper presents an integrated air handling unit system (OAHU) for large commercial buildings. The system introduces outside air into the interior section and circulates the return air to the...
Energy Efficient Single Stack Exhaust Fan Systems (E3S3F) (2001)
This paper first investigates the fan energy performance of a constant air volume exhaust system. Two single stack energy efficient exhaust fan systems (E3S3F) are presented. The E3S3F-I has the...
Continuous Commissioning(SM) of a Thermal Storage System (2001)
Chilled water thermal storage systems can reduce the electrical demand charge during the onpeak months. However, operational problems such as the inability to fully charge the system or premature...
Performance Analysis of Dual-Fan, Dual-Duct Constant Volume Air-Handling Units (2001)
Dual-fan, dual-duct air-handling units introduce outside air directly into the cooling duct and use two variable speed devices to independently maintain the static pressure of the hot and the cold...
Laboratory Air Handling Unit System (2001)
An innovative AHU system is presented in this paper. The proposed AHU system is called a Laboratory Air Handling Unit (LAHU) system since it is most suitable for the buildings where one section...
Epidemiology of Yeast Colonization in the Intensive Care Unit (2000)
Kauffman, Carol A., Lyons, M. J., Vazquez, J. A., Hedderwick, S. A., Liu, M.
In order to investigate the epidemiology of colonization and possible transmission of yeasts among patients and healthcare workers in adult intensive care units (ICUs), 194 patients were followed...
Simulation and Optimization on Power Plant Operation Using SEGA's EOP Program (2000)
Zhou, J., Deng, S., Turner, W. D., Liu, M.
The operation of a cogeneration power plant is complicated. The Energy Optimization Program (EOP, software made by SEGA, Inc.) was designed to simulate and optimize the operation of TAMU power plant....