撤销三级机构编制 压减队伍 全面定岗定员 胜利石油工程公司瘦身健体按下改革快进键

市场环境深刻变化,不改不行、改得慢也不行。面对严峻形势,企业该如何深化改革? 7月13日下午,胜利石油工程公司召开深化改革扭亏脱困推进会,明确改革“路线图”,坚决打破体制机制掣肘,按下深化改革快进键,扭亏脱困进入倒计时。该公司首先在队伍“瘦身”上下功夫,一是压减队伍规模。按照市场工作量预测.

GIS-Based Simulation of Engineering Construction Schedule

For its complexity, engineering construction schedule design is limited by various factors.Simulation-based engineering construction schedule takes critical path method (CPM) network as frame and calls complex cyclic operation network (CYCLONE) simulation model enclosed in advance for its simulation nodes. CYCLONE simulation model takes charge of simulating stochastic duration of activity and efficiency of resources, while CPM model performs project scheduling. This combination avoids the shortcomings of both models. Furthermore, geographic information system (GIS) technique is utilized to visualize the construction processes which are otherwise difficult to be understood by static results described. Application in practical project verifies the feasibility and advantage of the technique.

The senior sports situation under the trend of aging process and the strategy of it

abstract： According to the new situation and problems in the aging process, we will try to analyze the current situation and features of the aging process from the point of sociology by investigation and document literature. By analyzing the severe aging problems, we will know about the leisure sporting activities of the old people. Sports is a very useful way to slow down the pace of getting old. Through the efforts of the whole society, we can take full advantage of sports to slow down the aging process and make the senior sports a healthy and scientific development direction. Keywords： population aging Sports Strategy

Multiple phase detector of M-ary phase shift keying symbols in code division multiple access systems

A novel iterative technique, the phase descent search detection was proposed. This technique constrained the solution （PDS） algorithm, for M-ary phase shift keying （M-PSK） symbols to have a unit magnitude and it was based on coordinate descent iterations where coordinates were the unknown symbol phases. The PDS algorithm, together with a descent local search （also implemented as a version of the PDS algorithm）, was used multiple times with different initializations in a proposed multiple phase detector; the solution with the minimum cost was then chosen as the final solution. The simulation results show that for highly loaded multiuser scenarios, the proposed technique has a detection performance that is close to the single-user bound. The results also show that the multiple phase detector allows detection in highly overloaded scenarios and it exhibits near-far resistance. In particular, the detector has a performance that is significantly better, and complexity that is significantly lower, than that of the detector based on semi-definite relaxation.

Optimization of air quantity regulation in mine ventilation networks using the improved differential evolution algorithm and critical path method

In mine ventilation networks, the reasonable airflow distribution is very important for the production safety and economy. Three basic problems of the natural, full-controlled and semi-controlled splitting were reviewed in the paper. Aiming at the high difficulty semi-controlled splitting problem, the general nonlinear multi-objectives optimization mathematical model with constraints was established based on the theory of mine ventilation networks. A new algorithm, which combined the improved differential evaluation and the critical path method （CPM） based on the multivariable separate solution strategy, was put forward to search for the global optimal solution more efficiently. In each step of evolution, the feasible solutions of air quantity distribution are firstly produced by the improved differential evolu- tion algorithm, and then the optimal solutions of regulator pressure drop are obtained by the CPM. Through finite steps iterations, the optimal solution can be given. In this new algorithm, the population of feasible solutions were sorted and grouped for enhancing the global search ability and the individuals in general group were randomly initialized for keeping diversity. Meanwhile, the individual neighbor- hood in the fine group which may be closely to the optimal solutions were searched locally and slightly for achieving a balance between global searching and local searching, thus improving the convergence rate. The computer program was developed based on this method. Finally, the two ventilation networks with single-fan and multi-fans were solved. The results show that this algorithm has advantages of high effectiveness, fast convergence, good robustness and flexibility. This computer program could be used to solve lar^e-scale ~eneralized ventilation networks o^timization problem in the future.

浙江:数字化赋能乡村振兴

数字乡村怎么建?建成什么样的?在乡村振兴持续推进的今天,怎样利用数字进行赋能?又如何让老百姓有获得感?自从去年的中央一号文件首次提出数字乡村的概念后,全国各地都在探索破题。今年的中央一号文件再次按下快进键,进一步细化了对数字乡村的扶持政策。数字没有形状,但在浙江乡村,人们却有着直观感受:钢架大棚外观别无二致,可里头科技范儿十足,一部手机网罗各色数据.

享受退养生活

退养也称“内退”,顾名思义指“内部退休”,是国有企业根据经济体制改革和企业转型发展需要,更新人员结构或降低人力成本,使企业富余职工退出工作岗位实行内部休养且保留劳动关系的一种过渡性劳动管理形式. 2018年11月我也步入退养人员队伍. 2016年,国务院印发《盐业体制改革方案》,在坚持食盐专营制度的基础上推进供给侧结构性改革,吹响了盐改的号角.2017年1月1月盐业体制改革拉开帷幕,盐业按下了从长期的计划经济迈向市场经济大潮的快进键.

偕

子曰:“逝者如斯夫,不舍昼夜”,转眼间,我已初三。初三的生活,像按了快进键一样的忙碌。早上太阳未升,我已起;晚上月亮已高高挂起,而我还在题海中艰苦奋斗。在学校生活,不再像以前到处可以看见我与朋友打闹的身影,只有坐在班级一角正在刷题的我;每到课间,再看不见我与朋友嘻嘻哈哈地聊着八卦,只有仿佛没有听见下课铃声而安静地坐在一旁虚心请教同学问题的我;再听不见我与朋友的放声大笑,只有那不停地从嘴角边溢出的英语单词;每到休息日,再不像从前那样依偎在妈妈身边逛街.

An Oryza-specific hydroxycinnamoyl tyramine gene cluster contributes to enhanced disease resistance

Genomic clustering of non-homologous genes for the biosynthesis of plant defensive compounds is an emerging theme, but insights into their formation and physiological function remain limited. Here we report the identification of a newly discovered hydroxycinnamoyl tyramine(HT) gene cluster in rice.This cluster contains a pyridoxamine 50-phosphate oxidase(Os PDX3) producing the cofactor pyridoxal50-phosphate(PLP), a PLP-dependent tyrosine decarboxylase(Os Ty DC1), and two duplicated hydroxycinnamoyl transferases(Os THT1 and Os THT2). These members were combined to represent an enzymological innovation gene cluster. Natural variation analysis showed that the abundance of the toxic tyramine intermediate of the gene cluster among different rice accessions is mainly determined by the coordinated transcription of Os Ty DC1 and Os THT1. Further pathogen incubation assays demonstrated that the end products of the HT gene cluster displayed enhanced resistance to the bacterial pathogen Xanthomonas oryzae pv. Oryzae(Xoo) and fungal pathogen Magnaporthe oryzae(M. oryzae), and the enhanced resistance is associated with the boost of phytoalexins and the activation of defense response. The unique presence of the HT gene cluster in Oryza AA genome, together with the enrichment of transposon elements within this gene cluster region, provides an evolutionary background to accelerate cluster member combinations. Our study not only discovered a gene cluster involved in the phenylpropanoid metabolism but also addressed the key aspects of gene cluster formation. In addition, our results provide a new metabolic pool for plant defense against pathogens.

Blind equalization and automatic modulation classification based on subspace for subcarrier MPSK optical communications

Equalization can compensate channel distortion caused by channel multipath effects, and effectively improve convergent of modulation constellation diagram in optical wireless system. In this paper, the subspace blind equalization algorithm is used to preprocess M-ary phase shift keying(MPSK) subcarrier modulation signal in receiver. Mountain clustering is adopted to get the clustering centers of MPSK modulation constellation diagram, and the modulation order is automatically identified through the k-nearest neighbor(KNN) classifier. The experiment has been done under four different weather conditions. Experimental results show that the convergent of constellation diagram is improved effectively after using the subspace blind equalization algorithm, which means that the accuracy of modulation recognition is increased. The correct recognition rate of 16 PSK can be up to 85% in any kind of weather condition which is mentioned in paper. Meanwhile, the correct recognition rate is the highest in cloudy and the lowest in heavy rain condition.

Entransy dissipation minimization for a class of one-way isothermal mass transfer processes

A class of one-way isothermal mass transfer processes with Fick’s diffusive mass transfer law[g ∝Δ(c)]is investigated in this paper.Based on the definition of the mass entransy,the entransy dissipation function which reflects the irreversibility of mass transfer ability loss is derived.The optimal concentration allocations of the key components corresponding to the highand low-concentration sides for the minimum entransy dissipation of the mass transfer process are obtained by applying opti- mal control theory and compared with the strategies of the minimum entropy generation,constant mass transfer flux(constant concentration difference),and constant concentration ratio(constant chemical potential difference).The results are as follows. For the optimal mass transfer strategy of the minimum entransy dissipation,the product of the square of the key component concentration difference between the high-and the low-concentration sides and the inert component concentration at the low-concentration side is a constant,while for that of the minimum entropy generation,the ratio of the square of the key com-ponent concentration difference between the high-and the low-concentration sides to the key component concentration at the low-concentration side is a constant;when the mass transfer process is not involved in energy conversion process,the optimi-zation principle should be the minimum entransy dissipation;the mass transfer strategy of constant concentration difference is superior to that of constant concentration ratio.The results obtained in this paper can provide some theoretical guidelines for optimal designs and operations of practical mass transfer processes.

Photonic generation of BFSK RF signals based on optical pulse shaping

A novel method to generate binary frequency shift-keying(BFSK) radio frequency(RF) signals in optical domain is proposed.In the proposed system,an optical short pulse train is converted into super-Gaussian RF pulses with high frequency based on optical pulse shaping by two Mach-Zehnder fiber interferometers(MZIs).And the generated RF signals are coded using a fast electro-optic switch.By properly designing the MZIs,BFSK RF signals with desired code pattern and modulation index can be generated.A theoretical model for describing the system is developed,and the generation of BFSK RF signals in millimeter-wave regime is demonstrated via simulations.