This stud. aims to establish equations for energy consumptions of Taiwan Railways Ad.inistration (TRA) trains in operation consid.ring the variations of slope to d.termine the traction energy cost (TEC). Where railway...
详细信息
ISBN:
(纸本)9781467365970
This stud. aims to establish equations for energy consumptions of Taiwan Railways Ad.inistration (TRA) trains in operation consid.ring the variations of slope to d.termine the traction energy cost (TEC). Where railway transportation has been one of the important means of transport for mankind. since TRA became electrified.the parameters for train operations have been able to be accurately record.d. The equations for overall energy consumption and.resistance parameters are completed.for the overall energy consumption of TRA trains and.resistance to them to simulate the operation of the whole train mod.l. The inputs of d.fferent cond.tions of trains and.track sections are then analyzed.for energy use, as the energy use by train travel is obvious. That by the behavior of energy use, can be d.vid.d.in three cond.tions for analysis which is acceleration, coasting and.d.celeration. In the analysis of the energy in the journey, the variation of its consumption is subject to multiple factors because of the d.fference in operation mod.l and.the variation in the track slope d.ta. In view of d.creasing unnecessary energy consumption, the equations for train energy consumption and.the track parameters are substituted.in the teaching-learning-based.optimization (TLBO) technique, which can compute the optimal results fast. The optimal results being incorporated.in the trains can help red.ce unnecessary energy consumption and.errors by human operations and.arrive at the d.stination on sched.le. By the equations for energy consumption, train parameters, and.TLBO, our stud. proved.to be able to red.ce energy use as well as ensure of Top Transport Time Expend.ture (TTE) of the trains.
In this stud., we propose a novel intelligent neural guid.nce law by applying several neural network optimization algorithms alternatively in each step, such as Grad.ent d.scent (Gd., Levenberg-Marquard. (LM) and.Scal...
详细信息
ISBN:
(纸本)9781479942145
In this stud., we propose a novel intelligent neural guid.nce law by applying several neural network optimization algorithms alternatively in each step, such as Grad.ent d.scent (Gd., Levenberg-Marquard. (LM) and.Scaled.Conjugate Grad.ent (SCG) method.. The missile turning rate time constant, rad.me slope error, initial head.ng error and.the noise effects in the guid.nce loop (such as target maneuver, glint, and.fad.ng noises) are taken into consid.ration by using the ad.oint simulation technique. Comparisons with the trad.tional proportional navigation (PN) method.and.those applying only one optimization algorithm for the cases of lower and.higher altitud.s are also mad.; note that the miss d.stances obtained.by the proposed.neural guid.nce law are always lower.
Geotextile has been commonly used.in civil and.geotechnical engineering applications, and.the majority of geotextiles is mad. of nonwoven fabrics. Therefore, this stud. combines crimped.polyester (PET) fibers, recycle...
详细信息
Geotextiles feature reinforcement, d.ainage, filtration, separation, and.act as a moisture barrier, and.are commonly used.in civil and.geotechnical engineering applications. Using nonwoven fabrics as geotextiles has b...
详细信息
Geotextiles feature reinforcement, d.ainage, filtration, separation, and.act as a moisture barrier, and.are commonly used.in civil and.geotechnical engineering applications. Using nonwoven fabrics as geotextiles has become a recent trend.therefore, this stud. combines crimped.polyester (PET) fibers, recycled.Kevlar unid.rectional selvage fibers, and.low-melting-point PET (LPET) fiber to make PET/Kevlar/LPET nonwoven geotextiles, the mechanical properties of which are then examined. The test results show that the tensile strength and.tearing strength of the PET/Kevlar/LPET nonwoven geotextiles increases as a result of an increasing need.e-punch rate from 150 punches/min to 200 punches/min. The mechanical properties along the cross machine d.reciton (Cd. of the nonwoven geotextiles is greater than that along the machine d.rection (Md.. When the need.e-punching rate exceed. 200 punches/min, the mechanical properties of the nonwoven geotextiles slightly d.crease.
Four novel id.as are proposed.in this paper to integrate an active RFId.tag with thermal convection angular accelerometer on an engineering plastic substrate, thus the d.vice is a wireless sensor. The first innovative...
详细信息
There has been much interest in investigating possible means of making collagen from und.rutilized.chicken by-prod.cts and.it will lead.to an alternate source of collagen for use in various ind.stries such as ph.rmace...
There has been much interest in investigating possible means of making collagen from und.rutilized.chicken by-prod.cts and.it will lead.to an alternate source of collagen for use in various ind.stries such as ph.rmaceuticals, cosmetics, biomed.cal materials, and.the food.ind.stry. The objective of this research was to find.method. to extract collagen from chicken skins and.bones to compare the correspond.ng yield.d.fferences and.analyze their properties. Collagen extracted.by acetic acid. citric acid. alkali, one-step acetic acid.and.pepsin, and.two-step acetic acid.and.pepsin extraction proced.res was compared. Complete rand.mized.d.sign, Stud.nt’s t -test, and.Tukey’s test were used.to analyze the samples ( P < 0.05). The recovered.d.y weights for the skin extractions were 6.1, 6.2, 5, 38.7, and.40.4% and.those of bone extractions were 4.4, 4.1, 4.1, 19.1, and.20.6%, respectively. Protein, fat, and.inorganic material contents of collagen preparations for skin were 62.7%, 1.5%, and.0.7% and.for bone were 30.4%, 1.4%, and.0.7%, respectively. This stud. ind.cates that chicken by-prod.cts have high potential use as an alternate source of collagen.
This research provid.s a health monitor system with replaceable flexible non-fragile bio-probe on an active RFId.(Rad.o Frequency Id.ntification) tag, such that the new system can improve the signal-to-noise ratio (S/...
详细信息
This research provid.s a health monitor system with replaceable flexible non-fragile bio-probe on an active RFId.(Rad.o Frequency Id.ntification) tag, such that the new system can improve the signal-to-noise ratio (S/N) and.imped.nce matching problems. Besid.s, the bio-probe d.vice can conform to the profile of a bio-bod. and.to improve the electrical contact property. The d.tailed.d.vice fabrication and.testing processes are given. Two examples are given to show that it is very useful for remote health monitoring. The first case is used.to measure the d.fferenceof acupuncture bio-potentials for a manwith and.without staying up late for all night. The other is to show the d.fferenceof acupuncture bio-potentials for a man with influenza before and.after taking some tabletsof vitamin C.
Wind.power has been recognized.as one of the important green energy resources in Taiwan. However, installing large-capacity wind.generators need. to meet many environmental regulations, limiting the penetration of win...
详细信息
ISBN:
(纸本)9783037853283
Wind.power has been recognized.as one of the important green energy resources in Taiwan. However, installing large-capacity wind.generators need. to meet many environmental regulations, limiting the penetration of wind.power to household./communities. In this paper, the d.sign of a novel d.uble-d.ck vertical-axis wind.generator for household. is presented. hoping "many a little makes a mickle" and.making better use of green energy to red.ce carbon emission. The proposed.wind.generator is an axial-flux permanent-magnet (PM) synchronous generator, which d.sign is d.fferent from other existing wind.generators in several aspects: (1) d.uble d.cks for d.uble wind.turbines vs. single turbine, (2) silicon-steel-lamination-cored.vs. air-cored.for armature coils, and.(3) axial-flux PM generator vs. conventional PM generator. The performance of the proposed.d.sign is simulated.with the aid.of a finite element software package. The experimental results are consistent with the simulation. The prototype of the proposed.wind.generator is also compared.with a commercial mini wind.generator on the market. The proposed.wind.generator prod.ces satisfactory results.
暂无评论