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14篇 您的检索式:作者名="Athar Hussain"
    题名 作者 年代 出处 被引量
1节能减排目标下的企业应对行为研究显示文摘基于企业视角,通过对Q市120家工业企业的抽样调查,分析节能减排指标对企业的影响,了解被调查企业对节能减排的主观态度和客观执行情况,探索企业节能减排工作中面临的问题和需求。重点考察了影响企业节能减排绩效的影响因素,例如企业规模、所有制、市场、企业原有环境绩效、上市情况等对节能减排活动的影响,以期为我国节能减排政策提供阶段性评估,提出在企业层面落实和促进节能减排目标实现的制度安排,并为长期的经济结构优化和可持续发展目标提供微观决策信息。邢璐 石磊 Athar Hussain 2010北京大学学报(自然科学版)2010,46,3:20
2不同降雨下旱地油菜节水节肥技术对土壤养分及酶活性的调控效应显示文摘为探讨沟垄集雨、秸秆覆盖和减量缓释肥节水节肥技术对油菜生产土壤养分及酶活性的调控效应,在大田定位试验条件下,设置农民习惯栽培(平作+常规肥)、节水栽培Ⅰ(秸秆覆盖+常规肥)、节水栽培Ⅱ(沟垄集雨+常规肥)、节肥栽培(平作+减量缓释肥)、双节栽培Ⅰ(秸秆覆盖+减量缓释肥)和双节栽培Ⅱ(沟垄集雨+减量缓释肥)6种水肥措施,比较分析2016-2017年(多雨年份)和2017-2018年(季节性干旱年份)2种不同降水年型下油菜节水节肥技术对土壤养分及酶活性的影响。结果表明:降水异常偏多对油菜生长的影响大于季节性干旱;双节技术在多雨年型下较习惯栽培增产效应显著,在季节性干旱年型下亦能稳产;在不同降水年型下,双节技术较习惯栽培能提高土壤pH和有机质含量,减少了土壤氮素淋溶损失,保持速效养分稳定释放,同时,能延迟脲酶释放,增加土壤碱性磷酸酶、蔗糖酶、纤维素酶活性,提高作物肥料利用效率及保持土壤肥力,更利于环境保护。综上,单一的节水或节肥技术无法满足西南旱地油菜生产需要。通过秸秆覆盖和沟垄集雨与缓释肥集成的双节技术,能适应不同降水年型下的油菜生产并兼顾环境效应,实现增产与环保的双赢目标。冯军 石超 门胜男 Hafiz Athar Hussain 柯剑鸿 Linna Cholidah 陈锦芬 郭欣 武海燕 冉泰霖 向信华 王龙昌 2020草业学报2020,29,4:6
3欧盟各国的失业保险计划显示文摘在欧盟,社会保障计划资金,包括失业保险的来源和运营是各成员国的责任。欧盟的作用仅限对各国社会保障制度进行协调,保证跨国境失业人员合理流动,使分属于不同社会保障制度的人员都能得到充分的保护。最近,欧盟开始在社会保障制度现代化建设方面推动各成员国展开密切合作。这种合作基于两个前提:一是每个国家都实行社会保障制度,阿塔·侯赛因(Athar Hussain) 2009中国社会保障2009,,1:5
4不同降水下覆盖与缓释肥减量对油菜土壤微生物群落结构的影响显示文摘为探讨沟垄集雨、秸秆覆盖和减量缓释肥集成技术对油菜土壤微生物群落结构的影响,在大田定位试验条件下,设置3种栽培方式(秸秆覆盖、沟垄集雨、传统平作)和4种施肥水平(习惯施肥、缓释肥减量20%、缓释肥减量40%、不施肥),比较分析2016~2017年(多雨年份)和2017~2018年(季节性干旱年份)这2种不同降水年型下油菜土壤微生物群落结构对集成技术的响应.结果表明,不同降雨条件下,秸秆覆盖+缓释肥减量20%(J80)与沟垄覆盖+缓释肥减量20%(M80)较习惯栽培(PC)更利于土壤微生物生长.在多雨年型和季节性干旱年型下,J80与M80能平均分别提高微生物量碳9.94%和10.32%;提高土壤微生物量氮2.38%和1.19%.多雨年型下,土壤微生物磷酸脂肪酸(PLFA)总量较干旱年型降低30.75%,覆盖能有效提高土壤PLFA质量摩尔浓度.多雨年型下土壤细菌、真菌PLFA质量摩尔浓度较干旱年型平均减少33.67%和53.21%;而放线菌PLFA增加13.04%.微生物群落对异常降水具有敏感响应.多雨气候会造成细菌/真菌升高;干旱气候则会增加直链饱和脂肪酸/直链单不饱和脂肪酸及直链单不饱和脂肪酸/环丙烷脂肪酸.通过秸秆覆盖与缓释肥的集成技术,能稳定异常降水下的土壤微环境,缓解水分和养分胁迫,为油菜稳产和可持续发展提供有效途径.冯军 石超 Hafiz Athar Hussain 刘永波 刘天朋 李永洪 刘俊峰 王龙昌 2022环境科学2022,43,8:4
5中国农村养老保险:政策回顾与评价显示文摘一、引言 家庭联产承包责任制,这一以去集体化为特征的改革在二十世纪八十年代初极大地提高了中国农村生产率。除了带来巨大的经济进步.其对中国社会与人口方面的深远影响也逐渐显现并持续至今:一方面,养老风险的责任承担从集体经济转移到个人及其家庭;另一方面,陈丰元 Athar Hussain 蔡泽昊 2013东吴学术2013,,6:4
6Germination and seedling growth of corn ( Zea mays l.) under varying levels of copper and zinc显示文摘S. Mahmood A. Hussain Z. Saeed M. Athar 2005International Journal of Environmental Science & Technology2005,,3:1
7Income Inequalities in China: Evidence from Household Survey Data显示文摘Athar Hussain Lanjouw Peter and Stern Nicholas 1994World Development1994,22,12:1
8Income inequalities in China: evidence from household survey data显示文摘Athar Hussain Peter Lanjouw Nicholas Stern 1994World Development1994,22,12:1
9Income Inequalities in China:Evidence from Household Survey Data显示文摘Athar Hussain Peter Lanjouw and Nicholas Stern 1994World Development1994,22,12:1
10Demographic Transition in China and its Implications显示文摘Athar Hussain 2002World Development2002,,10:1
11Income in-equalities in China:evidence from household survey data显示文摘Athar Hussain Peter Lanjouw Nicholas Stern 0,,12:1
12Hypoxia tolerance studies for yield,fiber and physiological traits in cotton(Gossypium hirsutum L.)显示文摘Background: Hypoxia tolerance studies in cotton are very rare in Pakistan. Unpredicted and excessive rainfalls result in severe losses to cotton crop in many regions of the country due to lack of hypoxia tolerance in current cotton varieties. The genotypes that can tolerate flooding are not reported earlier. The studies were conducted to explore hypoxia tolerance in local germplasm which will help to develop hypoxia tolerant cotton varieties.Method: An experiment with randomized complete blocks was designed to study the hypoxia tolerance in different cotton varieties. The genotypes were given two treatments i.e., water logged and non-water logged conditions.Results: The genotypes showed significant variability for yield, fiber and physiological traits. The hypoxia studies revealed that there is significant reduction for plant height in water sensitive genotype LRA-5166. The genotype MNH-786 showed better yield and MNH-556 showed superior ginning outturn percentage under water logged conditions. Staple length, strength and micronaire values also decreased under hypoxia. Similar pattern of negative effects were observed for Chlorophyll a, b contents and chl a/b ratio. Two hypoxia tolerant cultivars CIM-573 and MNH-564 had significantly higher chlorophyll a(1.664, 1.551) than other cultivars under both normal and waterlogged conditions. There was a significant decrease in total free amino acids in all genotypes/cultivars due to waterlogging. Free amino acid contents were significantly higher in two waterlogging sensitive cultivars, CEDIX and N-KRISHMA, than other cultivars under both non-waterlogged and waterlogged conditions. Waterlogging caused a significant reduction in shoot soluble proteins and increase in shoot proline. The genotype LRA-5166 was the'highest in shoot soluble proteins content and showed significant decrease in shoot proline.Conclusions: With respect to yield MNH-786 showed better results and regarding ginning outturn percentage MNH-556 exhibited, superior performance. The genotypes CIM-573 and MNH-564 showed higher chlorophyll a values. The above said genotypes may be exploited for further studies related to hypoxia tolerance.HUSSAIN Altaf FAROOQ Jehanzeb AHMAD Saghir MAHMOOD Abid SADIQ M.Attiq ZAFAR Ullah Zafar ATHAR Habib-Ur-Rehman 2018Journal of Cotton Research2018,1,2:0
13Relationship Between Teacher Factors and Student Achievement: A Correlational Study of Secondary Schools显示文摘Syed Zubair Haider Athar Hussain 2014US-China Education Review(A)2014,4,7:0
14Microwave-assisted pre-ionization experiments on GLAST-Ⅲ显示文摘GLAss Spherical Tokamak(GLAST-Ⅲ)is a spherical tokamak with an insulating vacuum vessel that has a unique single-passage capability for incident microwaves.In this work,electron cyclotron resonance heating(ECRH)-assisted plasma pre-ionization in GLAST-Ⅲis explored for three radio-frequency(RF)polarizations(the O-,X-,and M-modes)at different toroidal-field(TF)strengths and filled gas pressures.The optimum hydrogen pressure is identified for efficient plasma pre-ionization.A comparison of the plasma pre-ionizations initiated by the O-,X-,and M-modes shows prominent differences in the breakdown time,location,and wave absorption.In the case of O-mode polarization,microwave absorption occurs for a relatively shorter duration,resulting in a bell-shaped electron-temperature(Te)temporal profile.Microwave absorption is dominant in the case of the X-mode,leading to a broader Te temporal profile.The M-mode discharge contains features of both the X-and O-modes.Efficient plasma pre-ionization is achieved in the X-mode polarization for the intermediate TF strengths(with a central toroidal magnetic field B0=0.075 T).Traces of the electron-number density show a similar tendency,as revealed by Te.These results suggest that the X-mode is the best candidate for efficient plasma pre-ionization at low filled gas pressures(10-2 Pa)in small tokamaks.Riaz KHAN Sehrish SHAKIR Ahmad ALI Muhammad Khawar AYUB Moazzam NAZIR Zia UR-REHMAN Abdul QAYYUM Muhammad Athar NAVEED Sarfraz AHMAD Zahoor AHMAD Rafaqat ALI Shahid HUSSAIN 2021Plasma Science and Technology2021,23,8:0
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