Search results

Parish and Fry [6] reported that the type of mower used can affect turfgrass quality.
Cutting and grass cutting has many variables that have an impact on crushing and some of the important variables are the cutting speed and the percentage of moisture from the vine, and there is a need to establish a model of cutting mechanics and to relate knife parameters to forage material properties [1, 7] In another study, [8] indicated that the highest energy consumption was with the straight knife configurations and the lowest energy consumption was with the greatest oblique angle configurations.
There are requirements for additional, cutting mechanics and for further studies of the cutting action of knives, and there is a need to create a model of cutting mechanics and to relate knife parameters to forage material properties [1, 13-15].
These results were similar to the findings of [12], who reported that variety, moisture content and cutting speed are the main factors affecting shearing strength and energy of the wheat stem.
Sulaiman, "Design and development of an integrated slasher (pulverizer) for sweet potato harvester: A Review " in 1st International Conference in Mechanical Engineering Research (ICMER 2011), 2011

Fiber content may be one of factors affecting thermal conductivity of fabrics [1].
Based on Figure 2, it shows that thermal conductivity on dry and wet are affecting each other [10-11].
Renner, Warm-cool feeling relative to tribological properties of fabrics.
Marmarali, Thermal comfort properties of some knitted structures, Fib.
Araújo, Moisture transmission through textiles Part I: processes involved in moisture transmission and the factors at play.

Introduction Combination of composites materials, carbon fiber with resin matrix which produces high performance materials with new properties is called carbon fiber reinforced polymer (CFRP).
Carbon fibers show an excellent mechanical properties compared to other fibers: high specific stiffness, very high strength in both compression and tension and a high resistance to corrosion, creep and fatigue [1].
The combination of this two different materials, create a new material properties which is suitable for many applications especially in engineering purpose.
Dry machining condition was used due to the effect of coolant to the properties of the CFRP.
Fig. 5 shows that cutting speed, feed rate as well as the tool design significantly affects the delamination.

The shape of grate gars is similar to the shape of angle bending, so it can get the stress concentration factor through referring to the relevant part of the handbook.
The stress concentration coefficient is 1.2.It inputs the value of the fatigue properties on high chromium cast iron and obtains the curve shown in Figure 9.
For the cyclic thermal strain caused by the strain fatigue there will be a sudden fracture affected by mechanical shock when its fatigue crack and extended to a certain extent.
As the related documents shown, in many complicated factors the stress concentration and mean stress is the greatest harm factor on the fatigue strength.
Mechanical Industry Press in Beijing,1996

The important role that the combination of TMP and the post-TMP treatment affects on the microstructure and thus on the properties of the alloys is emphasized.
The effects of Ta content and the different parameters of thermal mechanical processing (TMP) on microstructure and tensile properties were extensively analyzed [5, 6].
Microstructure and Mechanical Properties Tensile Properties The tensile properties of the three type microstructures of Ti-22Al-20Nb-7Ta alloy are shown in Fig 4.
Boundary strengthening of (O+B2) two phase mixture appears to be predominantly responsible for the increased strength, with other strengthening factors such as long range order, solid solution and texture effects.
Table 4 lists some experimental data, indicating that Ti-22Al-25Nb alloy with the duplex microstructure has good comprehensive mechanical properties.

The mechanical properties of carbon fibers reinforced polymer composites are mainly controlled by the interfacial properties between the fiber and matrix even though they are also affected by the original nature of the fiber and matrix resin.
Plasma treatment modifies the uppermost atomic layer of the material surface without affecting its bulk characteristics.
As a result, the interfacial bonding strength between the carbon fibers and the resin matrix is low, good mechanical properties of composites cannot be achieved [8].
Surface Chemical Properties of the Carbon Fibers.
The effect of plasma treatment on IFSS is researched that has two main factors.

Inadequate density and poor mechanical properties are commonly reported using this technique.
Further mechanical testing is required in order to adequately compare the mechanical properties of the recycled and commercially available material, though initial results look promising.
Mabuchi, Mechanical properties of AZ31 Mg alloy recycled by severe deformation, J.
Higashi, New recycling process by extrusion for machined chips of AZ91 magnesium and mechanical properties of extruded bars, Mater.
Iwasaki, Corrosion and mechanical properties of recycled 5083 aluminium alloy by solid state recycling, Mater.

It also investigates the effect of each of them separately on HSC in terms of mechanical properties and optimal addition ratios.
Mechanical properties of concrete at high temperature—A review.
M., Johari. 11 factors affecting the autogenous shrinkage OF silica fume high-strength concrete.
Combined effect of silica fume and steel fiber on the mechanical properties of high strength concretes. 
Brooks, Effect of silica fume on mechanical properties of high-strength concrete, Cem.

.), 200, 240 and 280°C for studying systematically the influence of substrate temperature on morphologies, phase components and mechanical properties of CrN coatings, using the single-target magnetron sputtering in a direct-current mode.
Some researchers linked TS to the phase structure and mechanical properties of coatings[9], however, others think that TS would affect the growth of coatings so that it can make much difference to the morphologies of coatings[10].
Therefore, CrN coatings were produced by reactive magnetron sputtering technique in this paper, and the influence of TS on structure, morphology and mechanical properties of CrN coatings was studied by different analytical techniques such as XRD, SEM and EDS.
Ltd, Shanghai, China) and a MFT-4000 tester for material surface properties (HuaHui Instruments technology Co.
Substrate temperature is a very important factors, the compactness and crystallinity of CrN coatings improved with the increase of substrate temperature.

First, it is closely related with spatial factors, every farmland has its own geographic location and boundaries.
Second, any agricultural system has many factors; each factor also contains many sub-factors.
For example, in the crops of biological factor, there are wheat, paddy rice, corn, cotton and other factors etc [2].
All of these factors increase the degree of difficulty of agricultural data acquisition.
For example, the crop’s geographic properties have been gotten by map or manual measurement; the crop’s growth properties have been measured by soil sampling and offsite laboratory analysis or by on-the-spot measurement.