the purpose of this study was to assess exposure to hand-arm vibration in tiller users, forty users of tiller in northeastern provinces of iran were examined to measure hand-arm vibration parameters such as root mean square acceleration (rms), total equivalent acceleration, vibration dose value (vdv) and crest factor in three directions (x, y, and z) and various operating modes for comparing th...

Concl t THEN Lemma `fs unroll`THENM ReduceConcl ;;* THM fs add card>> 8A:D. 8s:FS(A). 8x:|A|. :(x fAg s) => |s +fAg x| = |s|+1 in Int* THM fs del exists>> 8A:D. 8s1:FS(A). 8x:|A|. 9s2:FS(A).(8y:|A|. y fAg s2 <=> y fAg s1 & :(y=x in |A|))& (x fAg s1 => |s2| = |s1|-1)* THM fs del>> A:D -> FS(A) -> |A| -> FS(A)Extraction:A s x. fs del exists(A,s,x).1...

We introduce the nonlinear spin-coherent state (SCS) via its ladder operator formalism and propose a type of nonlinear SCS by the nonlinear time evolution of the SCS. By a new version of spectroscopic squeezing criteria we study the spin squeezing in both the SCS and the nonlinear SCS. The results show that the SCS is not squeezed in the x, y and z directions, and the nonlinear SCS may be squee...

Background: The Covid-19 Pandemic has had a lot of impacts on society and students from various generations. Generations are a group of people who have the same age, traits, and experiences. Not all generations can overcome the impact caused by the pandemic on themselves, which is the cause of various problems in each generation starting from habits, behaviors, and stress. Generations Z and Y a...

Plan(x) → Plan(x) ∧ ∀yz. ((Role(y) ∧ Uses(x,y)) → (Endurant(z) ∧ Selects(y,z))) ∧ ∀wk. ((Task(w) ∧ Uses(x,w)) → (Perdurant(k) ∧ Selects(w,k))) only states general restrictions over plan components and situation elements. We need to express acondition by which an instance of an abstract plan specifies instances of plan components, but noinstances of situation elements, e.g. that manager ...

of D is an R-tree. (ii) There exists a tree (V, E ) whose vertex set V contains X, and an edge weighting C : E -i R that assigns a positive length C(e) to each edge e in E , such that D is the restriction of X to the shortest-path metric induced on V. (iii) There exists a map w : S(X) -i R>o from the set S(X) of all bi-partitions or splits of X into the set R ~ o of non-negative real numbers su...

We construct the fundamental solution of ∂t − ∆y − q(t, y), for functions q with a certain integral space-time relative smallness, in particular for those satisfying a relative Kato condition. The resulting transition density is comparable to the Gaussian kernel in finite time, and it is even asymptotically equal to the Gaussian kernel (in small time) under the relative Kato condition. The resu...

The Boolean ring $B$ of measurable subsets of the unit interval, modulo sets of measure zero, has proper radical ideals (for example, ${0})$ that are closed under the natural metric, but has no prime ideal closed under that metric; hence closed radical ideals are not, in general, intersections of closed prime ideals. Moreover, $B$ is known to be complete in its metric. Togethe...