... then they are com-pared to each other. Logistic regression was used to control for confounding factors. Results: In the anterior group, regardless of confounding factors, the incidence of exces-sive ... prior to deliv-ery. In addition to the location in the anterior portion or posterior portion of uterus, they were classified by sonographers blinded to the outcomes when so-nographic exam according ... bleeding and peripartum hysterectomy, even if placenta previa does not exist [3,6,9]. Therefore Faiz et al. claimed that age, parity, history of cesarean section and history of abortion should be...
... Medical Center, Nagoya University from July 2004 to October 2005. The participants aged 20 to 69 years were classified into three group accordingto CYP2C19 genotype; rapid metabolizers (RM) with ... Helicobacter pylori accordingto genotypes of CYP2C19, IL-1B, and TNF-A Yoshiko Ishida, Yasuyuki Goto, Takaaki Kondo, Mio Kurata, Kazuko Nishio, Sayo Kawai, Tomo Osafune, Mariko Naito, Nobuyuki Hamajima ... Center, Nagoya University, Nagoya, Japan to seek H. pylori tests and eradication between July 2004 and October 2005. The visitors aged 20 to 69 years were asked to participate in the polymorphism...
... didn’t carry over to the E.T. video game for Atari 2600. Accordingto one Web site, “E.T. is notorious for being what many believe to be the worst game ever.” As the rumor goes, to get rid of all ... drinks to paper towels to chocolate bars to hair dryers, the list of fallen products is like a roll call of the dearly departed. In the U.K., there was a similar version of the Segway story. ... everywhere, from the living room to the bedroom. You could barely make out the vague outlines of furniture. The kitchen with its rancid refrigerator and grease-clogged stove-top burners was hardly...
... vertex j to k, let them firstdiverge at vertex jand then converge at vertex k. Then, that section of Pfrom j to kand that section of Q from j to kform a circuit. This leads to acontradiction ... Kuratowski, K., 1930, Sur le Problème des Courbes Gauches en Topologie,Fundamental Mathematics, 15, 271–283.[4] Sohn, W. and Freudenstein, F., 1986, An Application of Dual Graphs to the Au-tomatic ... to be a bipartite if its vertices can be partitioned into two subsets,V1and V2, such that every edge of G connects a vertex in V1 to a vertex in V2.Furthermore, the graph G is said to...
... kinematic chain are numbered sequentially from 1 to n. Since in thegraph, representation vertices correspond to links and edges correspond to joints, thelink -to- link adjacency matrix, A, is defined as ... vertices shown in Figure 3.9 are numbered from 1 to 4 representing links 1 to 4, respectively, and the edges are labeled as R, R, S, andC accordingto the pair connections between links.Similarly, ... diagonalelements. The matrix determines the structural topology of a kinematic chain up to structural isomorphism. For example, the link -to- link adjacency matrix of thespur-gear set shown in...
... labeled graph may map into itself.The set of those permutations which map the graph into itself form a group called agroup of automorphisms. This group of automorphisms is said to be a vertex-inducedgroup ... developed forenumeration of mechanisms accordingto certain prescribed structural characteristics.4.2 Correspondence Between Mechanisms and GraphsSince the topological structure of a kinematic ... the graph into itself an edge-induced group of automorphisms.Example 4.13 Stephenson ChainConsider the Stephenson chain shown in Figure 4.8a, where the six links are labeledfrom 1 to 6. The...
... figure mounted on top of the chariot always pointed to the southas the chariot was towed from one place to another. It is believed that the ancientChinese used this device to help them navigate ... trains are used to transmit motion and/or power from one rotating shaft to another. An enormous number of gear trains are used in machinery such as automobiletransmissions, machine tool gear boxes, ... labeled according to their axis locations is shown in Figure 7.3b. Readers can easily verifythat Equations (7.3) through (7.5) are satisfied. Removing all the geared edges fromthe graph leads to...
... stator blades. The purpose of the stator blades is to redirect the fluid flowfrom the turbine to the impeller, providing a torque multiplication to the transmission.The torque amplification factor ... housing.The torque converter has three purposes. First of all, it serves as a fluid coupling to provide a smooth transmission of torque from the engine to the wheels. It also allowsa vehicle to stop ... the connecting rod (attached to the piston), and link 6 is the piston.We observe that the piston and the crankshaft of the second mechanism shownin Figure 8.1 belong to a four-bar loop. A change...
... manipulator.FIGURE 9.4Planar RR–RRR manipulator.Planar Three-dof ManipulatorsFor planar three-dof parallel manipulators, Equation (9.1) yields m = 3 and L = 2.Substituting λ = 3 and F = 3 into ... manipulator, itshould be compact, light weight, and dextrous. To achieve these goals, gear trains,belts-and-pulley drives, and other mechanical transmissions are often used to permitactuators to ... sphericalmanipulator is the five-bar RR–RRR manipulator. Similarly, the only feasible three-dof spherical manipulator is the 3-RRR manipulator as shown in Figure 6.14. Severalarticles related to kinematic...
... variables subject to a constraint that all the variables are nonnegative integers.We first discuss a method for solving one equation in n unknowns. Then, we extendthe method to solving a system ... coefficients. The cis are nonnegativeintegers and k is a positive integer. We wish to solve for xi, for i = 1, 2, ,nsubject to a constraint that all xis must be nonnegative integers. In addition, ... nonnegative integers. This can be accomplished by a com-puter program using a nested-do loops algorithm to vary the value of each xiandcheck for the validity of the solutions. A more rigorous procedure...