程炜及大宁县程炜扶贫开发有限公司介绍

个人简历 程炜，女，1950年6月日出生在河北省武邑县。 Chengwei, female, June 3rd, 1950 born in Wuyi County, Hebei Province. 1956年因家乡发大水,随父母来到北京。 In 1956, she moved to Beijing with her parents because of flood. 1968年到山西省汾西县城关公社马沟大队插队。 In 1968, as educated youth, she left Beijing and worked in Magou production team, Chengguan Commune, Fenxi County, Shanxi Province. 1972年被推荐上了清华大学化工系高分子专业。 In 1972, she was recommended to study at Tsinghua University, majoring in Polymer Science 1976年1月被学校分配到燕山石化化工研究所，同时接到山西省汾西县委的邀请书，放弃了在北京工作的机会，回到了曾经插队的汾西县。 In 1976, on graduation, she was assigned to Yanshan Petrochemical Institute of Chemical Engineering. At the same time, she was invited by Fenxi County to return. She decided to give up the precious opportunity to work in Beijing and went back to Fenxi County. 在汾西工作了三年，曾经担任马沟大队党支部书记、汾西县化肥厂基建指挥部副总指挥。 1978年被任命为汾西县委副书记。 In 1978, she was appointed deputy secretary of CPC Fenxi County Committee. 1978年底因身体等原因回到北京，担任北京幸福村中学高中化学教师。 At the end of 1978, for health reasons, she returned to Beijing and worked at the Beijing Happy Village Senior Middle School as a teacher in chemistry. 1997年3月，为还二十年前的夙愿，在党中央发出“动员全社会力量参与扶贫攻坚”号召后，自带资金20万元，放弃北京舒适的工作、生活环境，离职舍家，第三次来到全国592个国家级贫困县之一——山西省大宁县榆村乡金圪塔村搞开发式的扶贫。 In March 1997, she gave up her cozy life in Beijing and took 200,000 yuan family savings to do poverty alleviation work through development projects in one of 592 state-level poverty counties----Jin Geta Village, Daning County. This was the third time she left for Shanxi Province. 1998年4月，成立“大宁县程炜扶贫开发有限公司”。开始了人生又一段艰难的历程。 In April 1998, she founded Cheng Wei Poverty Alleviation and Development Co. Ltd. Another phase of arduous life began for her. 1998年成立程炜扶贫开发有限公司，在金圪塔村搞开发式的扶贫，15年来，修路、通电、引水上塬、兴办学校、开发二郎山旅游、种植了15万株树木。 With the setup of Cheng Wei Poverty Alleviation and Development Co. Ltd., in 1998, she mended roads, connect electricity, build water storage tank, build school for the local people, and with the villagers of Jin Geta Village 现在正兴建存栏10万头的大型养猪场和沼气工程、和修建一个10万只的散养柴鸡的大型养鸡场。 Now, Chengwei is busy on building a large scale pigsty whose year Live pig rate is 100000, biogas project, and a large scale Chai-hens farm 100,000 whose year production is 100000. 公司正朝着公司加农户的大型养殖项目努力，2013年渴望全部修建成功，就可以更好的带动更多的农户，加快脱贫致富的步伐。 The company is trying to cooperate with the local farmers and plan to finish infrastructure building successfully in 2003, so that more and more farmers could benefit from this program and lead a happy life

SU(3) symmetry breaking and CP violation in D -> PP decays

Evidence of CP violation in the charm sector has been observed recently by the LHCb and CDF Collaborations. Adopting the topological diagram approach, we study flavor SU(3) symmetry breaking effects in the weak decay tree amplitudes of singly Cabibbo-suppressed $D\to PP$ decays. The symmetry breaking in the color-allowed and color-suppressed amplitudes is estimated with the help of the factorization ansatz, while that in the $W$-exchange amplitude is done by fitting to related branching fraction data. We find that the $W$-exchange amplitudes stay in the second quadrant relative to the color-allowed tree amplitude, albeit there are two possibilities for one type of $W$-exchange amplitude. The weak decay penguin amplitudes, on the other hand, are evaluated within the framework of QCD factorization. Using the input of topological tree amplitudes extracted from the Cabibbo-favored decay modes and the perturbative results for QCD penguin amplitudes, we make predictions for the branching fractions and CP asymmetries of singly Cabibbo-suppressed modes. The predictions of branching fractions are generally improved from those in the SU(3) limit. We conclude that the direct CP asymmetry difference between $D^0 \to K^+ K^-$ and $D^0 \to \pi^+ \pi^-$ is about $-(0.139\pm 0.004)$ and $-(0.151\pm 0.004)$ for the two solutions of $W$-exchange amplitudes, respectively. We also find that the CP asymmetry of D^0\to K^0\ov K^0 dominated by the interference between $W$-exchange amplitudes ranges from $-0.62\times 10^{-3}$ to $-1.82\times 10^{-3}$. We study phenomenological implications of two new physics scenarios for explaining the observed CP asymmetry in the charm sector, one with large penguin amplitudes and the other with a large chromomagnetic dipole operator. We find that the two scenarios can be discriminated by the measurements of CP asymmetries of a set of decay modes.Comment: 23 pages, three new paragraphs added in the beginning of Sec. III. Version to appear in PRD. arXiv admin note: substantial text overlap with arXiv:1201.078

Bounds on Heavy-to-Heavy Weak Decay Form Factors

We provide upper and lower bounds on the semileptonic weak decay form factors for $B \to D^(*)$ and $\Lambda_b \to \Lambda_c$ decays by utilizing inclusive heavy quark effective theory sum rules. These bounds are calculated to second order in $\Lambda_{QCD}/m_Q$ and first order in $\alpha_s$. The $O(\alpha_s^2 \beta_0)$ corrections to the bounds at zero recoil are also presented.Comment: 3 pages, talk given at DPF 2000, Columbus, OH, August 9, 2000; reference adde