Dialogue policy optimisation via reinforcement learning requires a large number of training interactions, which makes learning with real users time consuming and expensive. Many set-ups therefore rely on a user simulator instead of humans. These user
simulators have their own problems. While hand-coded, rule-based user simulators have been shown to be sufficient in small, simple domains, for complex domains the number of rules quickly becomes intractable. State-of-the-art data-driven user simulators, on the other hand, are still domain-dependent. This means that adaptation to each new domain requires redesigning and retraining. In this work, we propose a domain-independent transformer-based user simulator (TUS). The structure of TUS is not tied to a specific domain, enabling domain generalization and the learning of cross-domain user behaviour from data. We compare TUS with the state-of-the-art using automatic as well as human evaluations. TUS can compete with rule-based user simulators on pre-defined domains and is able to generalize to unseen domains in a zero-shot fashion.
The demand growing of energy is offset by the weakening of the generating capacity of
power due to the war conditions in Syria. As the windows are the means of optical
communication between inside and outside of the building, the source of the vent
ilation
and the natural lighting, thus having an important effect on the thermal performance of the
building, which affects the consumption of energy.
so the search relied on proposing alternatives for glass to test its thermal performance, the
choice of alternatives was based on the diversity between the values of solar radiation
permeability and the visual light in addition to enumeration of the layers, to which end the
computer simulation method was adopted and the results were compared to a model
Standard (single-transparent).
The results of the comparison showed that the amount of energy saving could be as high as
35% for the face of the sun-exposed facades directly. By reducing the permeability of the
total glass of solar radiation and increasing the permeability of the visible light to increase
the amount of natural illumination, plus the adoption of a Multi-layered glazing system ,
the study recommended that appropriate glass selection must be taken into account in the
early design phase
In this study, we present a state-of-art model; we call SYRIA, to simulate the activity of ventricular myocardial cell as an example of simulating a human cell, in which we use the latest mathematical models of cardiac cell. We rely on O'Hara (O'Hara
, et al., 2011) for modeling electrical activity, ions hemostasis, and contracting. Our presented model takes into consideration the role of potassium channels KATP, chloride channels, volume regulation channels based on the Kyoto model (A.Takeuchi, 2006), PH regulation channels based on Leem model (Leem, et al., 1999), and the improvement of the values of some variables based on the results of modern experiments, especially concentrations of ions within the mitochondrial and cytoplasm, the values of calcium buffers in the SR, values of the conductance of membrane channels, and concentrations of metabolites in the mitochondria. The previous models have been linked to a mitochondrial model based on Kembro (Kembro, et al., 2013). The SYRIA model is based on the integration and improvement of the best known models in a hierarchical structure that facilitates understanding, monitoring and reuse, we also present models for testing drugs and some external influences. The programming process is done using blocks of M-file and S-function in Simulink.
By comparing the results obtained from the simulation with the laboratory results, we observe that computer simulations give results within the normal physiological range
.
In this research a performance of TurboExpander and Joule-
Thomson valve will be compared in a proposed system developed
in order to recover flare gas in oil fields outstations which not
connected to any gas plant and burns continually the entire
associated gases in the flare, and reuses the mentioned gases in
central process facilities as a fuel in gas turbines which use diesel
(as they have dual system gas-diesel), while the associated gases in
related outstations are burned.
This research demonstrated a way to study the thermal properties
of raw and recycled High Density Polyethylene HDPE which is
used to make oil containers. Also, the research has dealt with the
effect of recycling on blow molding process used to manufacture
these containers.
Phase Shifting Transformer has played an important role in electrical networks to improve
their efficiency because it has the ability to control power flow in electrical transmission network
that can lead to power loss minimization. PST technology
is considered as mature technology
which is used by transmission system operators. These transformers provide an integrated solution
to control power due to the advantages of low economic and high reliability.
In this research an exposure to the classification of phase shifting transformers and their
application then a simple model for Phase shifting transformer is suggested without seeking in the
details of transformer, this model presents the result for using PST via modeling phase shifting
voltage, this model is performed using Matlab/Simulink program according to differential
equation. Depending on the mathematical model which has been built in an Matlab environment
we have a model shows the impact of this transformer through the representation of output voltage
, results are verified using Neplan program via a case study demonstrated the role of this type of
transformers in controlling power flow in transmission system achieving remarkable power loss
reduction and improving voltage profile
The article studies the open loop
and closed loop systems for the improved converter. An improved
DC-DC boost converter is modeled and simulated using Matlab
R2013a.
The simulation and experimental results of the tow systems are
presented and co
mpared. The performance of the improved
converter is also compared with the conventional boost converter.The article studies the open loop
and closed loop systems for the improved converter. An improved
DC-DC boost converter is modeled and simulated using Matlab
R2013a.
The simulation and experimental results of the tow systems are
presented and compared. The performance of the improved
converter is also compared with the conventional boost converter.
In this paper, we propose modifications to TCP by
introducing adaptive delay and loss response (TCP-ADaLR) to
mitigate the adverse effects of satellite link characteristics.
Latent heat storage is an economical way to achieve energy
efficiency and improve thermal comfort in buildings.
In this research, the effects of using PCM Wallboards in a
residential apartment envelop located in Homs was studied by PCM
Express so
ftware.
PCM wallboard with 23°C melting temperature was used and
installed on the inner face of the walls and ceiling of the apartment.
This investigation shows that the importance of using PCMs in
buildings envelope, compared with conventional thermal insulation
materials, due to the effectiveness of PCMs materials and storing
and releasing of thermal energy, which contributed to reducing of
thermal loads and improved the internal thermal comfort.
In this research proposed system components will be studied in
order to recover flare gases at outstations of the oil fields which not
connected to any gas plant, hence they send continuously the entire
associated gases to the flare, and how to de
termine the proposed
recovery system operating parameters in order to recover the
mentioned gases and reuse them in central process facilities, where
a number of gas turbines which have a dual system (gas - diesel)
located at Elwared central process facility consume a huge amount
of diesel, while the associated gas in Elwared related outstations
especially Elahmar burns (2.5 MMSCFD).
