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Copyright of Tourism Tribune / Lvyou Xuekan is the property of Tourism Institute of Beijing Union University and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Chinese Journal of Applied Ecology / Yingyong Shengtai Xuebao is the property of Chinese Journal of Applied Ecology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Chongqing University of Technology (Natural Science) is the property of Chongqing University of Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The quantum approximate optimization algorithm (QAOA) is a standard method for combinatorial optimization with a gate-based quantum computer. The QAOA consists of a particular ansatz for the quantum circuit architecture, together with a prescription for choosing the variational parameters of the circuit. We propose modifications to both. First, we define the Gibbs objective function and show that it is superior to the energy expectation value for use as an objective function in tuning the variational parameters. Second, we describe an ansatz architecture search (AAS) algorithm for searching the discrete space of quantum circuit architectures near the QAOA to find a better ansatz. Applying these modifications for a complete graph Ising model results in a 244.7% median relative improvement in the probability of finding a low-energy state while using 33.3% fewer two-qubit gates. For Ising models on a 2d grid we similarly find 44.4% median improvement in the probability with a 20.8% reduction in the number of two-qubit gates. This opens a new research field of quantum circuit architecture design for quantum optimization algorithms.

Copyright of Shipin Kexue/ Food Science is the property of Food Science Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Northwest A & F University - Natural Science Edition is the property of Editorial Department of Journal of Northwest A&F University (Natural Science Edition) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Data Acquisition & Processing / Shu Ju Cai Ji Yu Chu Li is the property of Editorial Department of Journal of Nanjing University of Aeronautics & Astronautics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Science Technology & Engineering is the property of Chinese Society of Technology Economics and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Nuclear Safety is the property of Nuclear & Radiation Safety Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In order to construct 3D geological model by geological data, it is necessary to standardize the geological data in modeling area. The division of rock-soil mass structure is the first step. On the basis of fully studying the geological, engineering geological and hydrogeological data of the central urban area of Chengdu, combined with the relevant national, industrial and local standards, the layered scheme of rock-soil mass structures is established to meet the needs of 3D geological modeling with different scales and precision. Through the application of 3D geological modeling in typical areas, the discrete analysis of physical and mechanical indexes of rock-soil layers and the analysis of engineering and geology, the division scheme of rock-soil mass structure is reasonable. The research results are of great significance to the standardization of massive geological data, the establishment of 3D geological model, and the improvement of geological data utilization. It provides a certain reference in urban planning, engineering site selection and geotechnical engineering survey. [ABSTRACT FROM AUTHOR]

Objective To explore the influence of HSF2 on occurrence of lung cancer and tumor cell proliferation by promoting HSP's expression. Methods We selected the para- carcinoma tissue from patients with lung cancer， then constructed the eukaryoticvector of HSF2 overexpression， then respectively transfected into BEAS- 2B and A549， in order to exam its influence on cell proliferation and HSP expression， and we co- transfected the siRNA of HSP27 and HSP90 while the transfection of pIRES2- EGFP- HSF2， in order to exam the influence on cell proliferation. Re s ults The overexpression of HSF2 may increase BEAS- 2B， improve the A549 proliferation speed （P＜0.01） and the expressions of HSP27， HSP90. The co- transfected siRNA of HSP27 and HSP90 may equally recede the cell proliferations of BEAS- 2B and A549 induced by HSF2 （P ＜0.01） . Conclusion The cell proliferation of lung cancer promoted by HSF2 may possibly be achieved through promoting the expression of HSP. Objective To explore the influence of HSF2 on occurrence of lung cancer and tumor cell proliferation by promoting HSP's expression. Methods We selected the para- carcinoma tissue from patients with lung cancer， then constructed the eukaryoticvector of HSF2 overexpression， then respectively transfected into BEAS- 2B and A549， in order to exam its influence on cell proliferation and HSP expression， and we co- transfected the siRNA of HSP27 and HSP90 while the transfection of pIRES2- EGFP- HSF2， in order to exam the influence on cell proliferation. Re s ults The overexpression of HSF2 may increase BEAS- 2B， improve the A549 proliferation speed （P＜0.01） and the expressions of HSP27， HSP90. The co- transfected siRNA of HSP27 and HSP90 may equally recede the cell proliferations of BEAS- 2B and A549 induced by HSF2 （P ＜0.01） . Conclusion The cell proliferation of lung cancer promoted by HSF2 may possibly be achieved through promoting the expression of HSP. [ABSTRACT FROM AUTHOR]

Copyright of Journal of Kunming Medical University / Kunming Yike Daxue Xuebao is the property of Kunming Medical Journal and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)