The author conceptualized and measured the following variables : time perspective ; the coping style ; reduced harm internet use self - efficacy ; positive peer involvement ; moderate parents involvement ; the totality of internet use and the score of functions. after the research used the structure equation model ( sem ) to fit the collected data, the following pathways were demonstrated at the significant level : 1, the time perspective present ( tpp ) piu. 2, tpp abreaction piu
通過時間透視、應對策略、減少傷害性的網際網路效能感、積極
同伴捲入、適度父母捲入、網路（使用）總量、功能分數的界定與測量，該
研究使用結構方程模型擬和數據后發現下列路徑對piu具有明顯的預測作用：現在定向piu ；現在定向發泄piu ；現在定向問題解決piu ；現在定向
同伴捲入piu ；現在定向
同伴捲入功能分數piu ；未來定向問題解決piu ；未來定向父母捲入piu ；未來定向發泄piu 。
After the expression form analysis, the insoluble recombinant proteins was purified by destraction and abstersion of inclusion bodies. to study the abstersion condition of the inclusion bodies, we adopted ultrasound crushing and freezing - melting methods
採用超聲加洗滌液破碎菌體；離心加凍融分離純化融合蛋白，
研究不
同的超聲次數和凍融對包涵體洗滌效果的影響。
What is more, the academe pays little attention to it
同時，學術界對這一問題關注還不夠，缺少系統的
研究。
Conjunctive control of tetranychus vinennensis in apple trees with natural enemy scolothrips takahashii and acaricide pyridaben
塔六點薊馬與噠蟎靈協
同控制蘋果樹山楂葉蟎的
研究初報
And the deficiencies are pointed out in present researches, such as highway capacity, level - of - service, influence factor of road alignments, etc. from these, it has confirmed that the thesis should be studied from rational analysis, quantitative analysis of level - of - service, impact on capacity of road alignments, setting - up simulation model, etc. the high - accuracy gps dynamic data acquisition appearance is proposed to be used for the first time to carry on the experiment of overtaking on two - lane highways, and experiment scheme is designed according to the driver ' s perceive to judge each overtaking course. based on the experiment data, it can get two important parameters of acceptant gap ? the critical gap of overtakable time headway and returnable time headway through data processing, which can offer the strong support to the research of two - lane highway capacity with qualitative and quantitative analysis. besides, the experiment methods is provided to observe overtaking ratio and to measure the
研究中首次提出了運用高精度gps動態數據採集儀對雙車道公路上的超車行為進行觀測，設計了根據駕駛員感受度來衡量超車過程的實驗方案，並通過後期數據處理得到了超車過程中兩個重要的可接受間隙參數-可超車車頭時距和可回車車頭時距的臨界間隙值，為定性和定量分析雙車道公路通行能力提供有力的數據支持;
同時，還提出了觀測超車率的實驗方法以及測量加速度干擾的實驗方案，統一了計算加速度干擾的時間統計間隔，為雙車道公路的服務水平量化
研究奠定基礎;最後還簡單介紹了駕駛員問卷調查法和模擬程序中模型參數標定和驗證的數據採集方法。
I hope that through this study, it can acculturate to executing the socialized management of university in dalian region
同時也希望通過此次
研究，能夠對大連地區高校後勤管理社會化的實現盡微薄之力。
The main contributions are as follows : ( 1 ) de ( differential evolution ) algorithm is proposed to invert the ocean acoustic parameters in shallow water in order to get faster and more accurate results than ga ( genetic algorithm ) and sa ( simulated annealing algorithm ). also a posteriori probability analysis method is applied to evaluate the uncertainty of inversion results. ( 2 ) maximum likelihood objective functions for broadband mfi are derived according to different conditions
（ 2 ）根據不
同的前提條件，採用似然比的方法推導了寬帶匹配場反演的最大似然目標函數；深入地
研究了寬帶匹配場處理中的相干與非相干問題；在分析參數反演的敏感性之後，提出了淺海環境參數寬帶匹配場反演的多步優化策略，並與全參數反演方法進行了性能上的模擬比較。
Beryllium powders with the same particle size and various contents of beo were prepared by pre - sintering - acid washing processes initiatively and the influence of beo alone on o mys of beryllium was observed and some new results have been obtained - compared with the content of beo, the distribution of beo in beryllium has more critical influence on mys ; finely dispersed beo along the grain boundaries and in the matrix results in the dispersion strengthening of beryllium matrix and thereby the higher mys value ; on the contrary, the coarser beo particles clustering on the grain boundaries results in negative influence on o mys
開創性地用預燒結? ?酸洗工藝制備了相
同粒度、不
同beo含量的鈹粉，從而開展了beo含量單獨對鈹材_ （ mys ）影響的
研究，得出一些新的結果：與beo含量相比， beo在鈹中的分佈狀態對_ （ mys ）的影響更大。沿晶界、晶內彌散分佈的較細小beo對基體鈹有彌散強化作用，使_ （ mys ）即較高；如果beo較粗大地成簇狀聚集在晶界，反而對_ （ mys ）有不良的影響。
The acrocarpous group includes the mosses capsule growing from the apex of branch or stem. it is from hdwigiaceae to hylocomiaceae. with bigger body, this group can preserve water and soil in forest ecological system and be favored double by horticulturist
同時，根據
研究的標本編制了河北省側蒴蘚類植物分科、分屬、分種檢索表，並根據標本對其中重要的代表種類做了顯微繪圖。
This thesis taking the lead in systematically studying pleurocarpous mosses, is a part of the comprehensive research of bryophytes in hebei, which will provide datum for the statistics and analysis of bryophytes along with exploit and utility of plant resources in hebei, which will provide the first - hand material for the compilation of the ( ( flora bryophytarum hebeiensis ) ) and the ( ( flora bryophytarum sinicorum ) ). on classification system, the author references the classification systems about bryophytes and approves standpoint of vitt., considering that the place of capsule growing is the criterion of distinguishing acrocarpous and pleurocarpous mosses
本
研究採用了陳邦傑教授（ 1963 ）修正的reimers （ 1932 ）關于蘚綱植物的分類系統，
同時，支持h . d . mitten （ 1984 ）的觀點，認為劃分頂蒴和側蒴蘚類植物的依據是孢子體著生的位置，其中側蒴蘚類植物是指蒴柄從葉腋中發生非著生莖頂的蘚類植物，分類系統上指從虎尾蘚科（ hdwigiaceae ） ?塔蘚科（ hylocomiaceae ）等。
The rhizosphere microflora dynamics of bacteria, actinomyces, fungi and four bacterial physiological groups of kentucky bluegrass under different quality of illumination were studied by adopting selective culture medium to explain scientifically response regular of this grass to different illumination condition
摘要
研究了草地早熟禾在不
同光照條件下其根際與非根際細菌、真菌、放線菌以及氨化細菌、硝化細菌、好氣性纖維素分解菌、固氮菌生理類群的區系動態變化，擬從根際土壤微生物數量變化方面來闡述草地早熟禾對不
同光照條件的響應規律。
They are jinfo mountain in nanchuan county ( natural protection section ), wuling mountain in qianjiang county ( national emphases forest demonstration county which forest cover rate is beyond 50 % ) and zhongliang mountain in beibei county ( artificial destruction is very grave ). some main land use patterns i. e. woodland, garden, infield, abandon infield, shrub and grassplot are selected in those three sample sites. four aspects on soil fertility index of karst environment under different land use patterns in these three sample sites, are revealed in this paper, by using the field test, indoor measure and analysis, outdoor experiment and field investigation, and the knowledge and technique of soil, ecology, physics and chemistry etc. they are physical characteristic ( effective soil thickness, organic layer thickness, soil texture, water - stable aggregate and soil water etc. ), chemical fertility ( organism, omni - n, omni - p, omni - k, alkali - nitrogen, available p, available k and rapid available k etc. ), soil animalcule ( bacteria, fungi, actinomyces and their grosses ) and soil - seed - pool ( plant community diversity index ) in karst ecosystem
本
研究以重慶市的南川金佛山（自然保護區） 、黔江武陵山（國家重點退耕還林示範縣，森林覆蓋率50以上）和北碚中梁山（遭人為破壞嚴重）典型巖溶區為對象，選擇了幾種重要的利用方式，包括林地、果園、耕地、棄耕地和灌草坡，採用野外巖溶生態調查和室內試驗測量分析相結合的方法，以不
同土地利用方式巖溶土壤肥力為重點，對不
同土地利用方式土壤肥力特徵進行量化分析，找出巖溶土壤肥力差異的主要方面及其根本原因，論文主要從土壤剖面物理退化指標（有效土層厚度、有機質層厚度、質地、團聚體、水分含量等） ，化學肥力退化指標（有機質、全n 、全p 、全k 、堿解n 、速效p和速效k等） ，樣地土壤微生物指標（細菌、真菌、放線菌數量及總量）以及樣地土壤種子庫植物群落多樣性等4個方面對重慶典型巖溶區的土壤肥力特徵進行了較為詳細的分析
研究，為巖溶地區士壤資源的合理利用及結構的調控管理提供依據。
Based on the modern design theory of tunnels construction that the adjoining rock be regarded as primary load - bearing structure, this thesis have made researches on the stability of tunnels mother rock and the safety of support pattern under the high external waterpressure and high geostress
這就使本隧洞工程的建設面臨著極大的挑戰。本文是在將圍巖作為主要承載結構，支護與圍巖共
同作用的現代隧洞設計理論的基礎上，來
研究高外水壓力及高地應力下隧洞圍巖穩定性及支護結構安全的。
This thesis tries to solve the problems in the design and construction of jinping cascade 2 hydropower station. a typical section is selected to analysis seepage, seepage control and fem numerical simulation. the influence of different plans of excavation and support on seepage field of subsurface water and stability of adjoining rock are studied. the homologous support pattern is suggested according to the research results
本文就錦屏二級水電站（一期）深埋長隧洞的設計和施工中面臨的一些問題，選取隧洞的一個典型斷面進行滲流、滲控分析和開挖及支護的有限元數值模擬，從而就深埋隧洞不
同的開挖及支護方式對地下水滲流場及圍巖穩定性的影響和所應採取的支護措施等方面進行了探索、
研究。
We have proved that stml is a topological category and the category tml is a bireflective full subcategory of stml, the existence of some functors " right adjunction. based on [ 106 ], we have researched the limits and inverse limits in the category stml, given the other one kind of product of - smooth topological molecular lattices
以文[ 106 ]的相關概念為基礎，
研究了范疇stml （ l ）中的極限與逆極限問題，從而給出了范疇stml （ l ）的另一種乘積，且這兩種乘積在范疇意義下是
同構的。
However, the wild - type e. coli dh5a produced scarcely ethanol. this research successfully introduce the novel pathway for fermenting glucose to ethanol in e. coli by expressing zymomonas mobilis genes encoding pdc and adh ii, which was reported for the first time
本
研究成功地將adhb和pdc基因引入大腸桿菌，在大腸桿菌中建立了一條新的代謝葡萄糖生成乙醇的途徑，
同類
研究在國內尚無報道。
The biogas research institute under the the ministry of agriculture, and the pengzhou bureau of agriculture. he investigated some issues in sichuan such as the tissue culture of virus - free seed potato, technology extension and construction of energy in the rural areas
農業部沼氣科學研究所以及彭州市農業局，就四川在脫毒馬鈴薯種薯組織培養技術推廣以及農村能源建設等問題進行了調研，同時也分別向四川的相關部門工作人員介紹了加拿大脫毒種薯生產體系建設生物能源研究等方面的情況。
