Báo cáo lâm nghiệp: "Discrimination of coated carbide tools wear by the features extracted from parallel force and noise level" potx

... wears by the features extracted from the parallel force and noise level. The purpose is to determine the feasibility of using parallel force and noise level to monitor the extent of wear of the ... the rate of the increase of the parallel force and the noise level. 3. Though the coated tools are applied for different cuttin...

Ngày tải lên: 08/08/2014, 01:22

... Czechia and Slovakia are given by the lower inven - tory limit and by the fact that a majority of stands were at the beginning of the conversion. e number of trees decreased on some plots in the ... need be evaluated with respect to the diameter structure and standing volume, which are reflected in the canopy closure of the stand and in the degree of...

Ngày tải lên: 07/08/2014, 04:20

... il- lustrated by the estimation of standing volume.  e group of the best clones was represented by stand- ing volume 101–121 m 3 ·ha –1 at the age of 6 years (Table 6).  e yield of the new clone ... 451 JOURNAL OF FOREST SCIENCE, 56, 2010 (10): 451–460 Supported by the Ministry of Agriculture of the Czech Republic, Project No. MZE 0002070203 Growth of hy...

Ngày tải lên: 07/08/2014, 10:21

... the annual trunk growth, and the only correlation shown is that of the rainfall values in the spring season, there is no correlation between the growth of the rings and the rainfall in any other ... the normal rainfall [23, 25] and so that they can handle a cloudburst originating a great runoff [1, 21]. On the other hand, the banks must have overflow chan- nels t...

Ngày tải lên: 08/08/2014, 00:22

... selected seedlings in the H and C treatments from each of two blocks were used and leaves from the top of the foliage were sampled. Only two treatments were used, since the measurements are time-consuming. ... September dur- ing the three growing seasons (Tab. II). In the H and HF treat- ments, only short periods of low were recorded in the top 10 cm of the s...

Ngày tải lên: 08/08/2014, 01:22

... which corresponds to the extension of the cankers and finally the death of the plants. The relations between the global incident radiation and both MDS and DE parame- ters ... to the necrosis of the bark and vascular tissues. They averaged 10 cm in length at the end of the experiment. The stem diameter evolution of plants...

Ngày tải lên: 08/08/2014, 18:21

... 3b. The drought effect was indicated by the direction of the arrows, resulting in a reduction of vigour, of gas-exchange rates and of Δ, and in an increase of ... used the expression of Far- quhar and Richards [8]: R plant and R air are the carbon isotope ratios of the plant and the atmosphere, respectively, and...

Ngày tải lên: 09/08/2014, 04:20

... side of the whole dotted field (along x-axis). It forms the high- est AVZ together with fields of the 8 th and 9 th AVZ. Only single habitats of the 7 th AVZ occur in the field of the 4 th and ... the DCA-analysis, habitats of the 8 th AVZ lie along the x-axis on the left side. is dotted field is not situated along the x-axis in the same way as the...

Ngày tải lên: 07/08/2014, 03:22

... watercourses along the roads, moist sites at the foot of upland, grassy bogs, felled and burnt areas, abandoned meadows and plough-lands. Area: North, Middle and Southeast Europe, boun- dary of West ... frequency of hybridization in the northern boundary of their areas (Latvia, Ireland and others). Hybridization between A. incana and A. glutinosa should be assigne...

Ngày tải lên: 07/08/2014, 03:22

... rather negative trend of development due to the development of timber prices on the one hand and due to increasing inputs on the other hand, last but not least also due to the projections of ... 58). And it is not only the depreciation of actual yield from the forest that is concerned but also the frequently neglected detriment from the unused potential and...

Ngày tải lên: 07/08/2014, 03:22