In order to improve battery technology understanding the capacity fading method in batteries is very important. Battery models can be used to predict their behavior under various operating conditions. Here we proposed a simple dynamic model of lithium-ion battery with MATLAB/Simulink to observe the output characteristics of this energy storage device. Dynamic simulations are carried out, includ...

There are extensive applications of lithium bromide-water absorption chillers in industry, but the heat exchangers corrosion and refrigerating capacity loss are very difficult to be solved. In this paper, an experiment was conducted by using plastic heat transfer tubes instead of copper tubes. As an example, for a lithium bromide-water absorption chiller of refrigerating capacity of 35kW, the c...

OBJECTIVE Prospectively to evaluate the effects of lung resection on lung function (as measured via spirometry) and exercise capacity (as measured via shuttle-walk test) in lung cancer patients. METHODS We conducted pulmonary function tests and the shuttle-walk test with 110 consecutive patients, before and 1 month, 3 months, and 6 months after lobectomy (n = 73) or pneumonectomy (n = 37). Al...

We give a brief summary of the classical information capacity of single-mode free-space optical communication, both for pure-loss channels (i.e., with no background radiation), and for thermal-noise channels (i.e., with background radiation). We compare the capacities afforded by structured transmitters and receivers to that of the ultimate communication capacity. The ultimate capacity-achievin...

Changes in samples of Li12xCoO2 were measured by X-ray diffractometry ~XRD! after thermal aging treatments that cause capacity losses in electrochemical cells. Changes in lattice parameters were used to identify lithium re-intercalation into Li12xCoO2 when it was aged in the presence of LiClO4 , LiPF6 , and LiAsF6 in propylene carbonate ~PC!. Li 1 re-intercalation could account for the reversib...

Both macrodiversity and microdiversity can effectively overcome the harmful effect of fading. Much of previous work focused on their benefits to the reverse link in CDMA systems. However, their effects on the forward link are less well understood. In this paper, we analyze the CDMA forward-link capacity with macrodiversity and microdiversity. It is shown that macrodiversity causes forward-link ...

This paper discusses the enhancement of the proposed UWB antenna design that can be used in wireless UWB systems. The small antenna design was simulated by CST software to present the performance of the main antenna parameters. The return loss is less than -10 dB from 3.5 GHz to 10.8 GHz which is covering the UWB bandwidth. This antenna was applied in multiple-in multiple-out (MIMO) scheme in i...

The Li-excess oxide compound is one of the most promising positive electrode materials for next generation batteries exhibiting high capacities of 4300 mA h g 1 due to the unconventional participation of the oxygen anion redox in the charge compensation mechanism. However, its synthesis has been proven to be highly sensitive to varying conditions and parameters where nanoscale phase separation ...

Highly stable LiV3O8 with a nanosheet-structure was successfully prepared using polyethylene glycol (PEG) polymer in the precursor solution as the structure modifying agent, followed by calcination in air at 400 C, 450 C, 500 C, and 550 C. These materials provide the best electrochemical performance ever reported for LiV3O8 crystalline electrodes, with a specific discharge capacity of 260 mAh g...

Quantization-based watermarking schemes comprise a class of watermarking schemes that achieves the channel capacity in terms of additive noise attacks. The existence of good high dimensional lattices that can be efficiently implemented and incorporated into watermarking structures, made quantization-based watermarking schemes of practical interest. Because of the structure of the lattices, wate...