35 research outputs found
Simulation of Field Profiles as Sources of Tractor Vibrations
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On the Control of the Seat Vibration of the Agricultural Vehicles : The Response of the Seat to Random Input and the Seat Suspension
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On the Estimation of the amount of Work required for Operating the Agricultural Machines
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žçŽ æ¶è²»å¢å ç€ããã®äœè¡šé¢ç©ã§é€ããå€ãšå¿ææ°ãšã®éã«ã¯,ãã¯ãäºæ¬¡æ²ç·çé¢ä¿ããã. 6.ãªãã¬ãŒã¿ã®ãªããäœæ¥éãš,ããã«èŠããé
žçŽ æ¶è²»å¢å éãšã®æ¯ã,ãªãã¬ãŒã¿ã®ä»äºã®å¹çãšãããš,ãã®å¹çãšäœæ¥åŒ·åºŠãšã®éã«ã¯,ããR.M.Rç¹ã§,å¹çãæ倧ãšãªã. 7.éå€ã§äœæ¥ãããªãã¬ãŒã¿ã®å¿ææ°ãèšæž¬ã,äºãå®æœããŠãããäžè¿°ã®å®€å
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On the Evaluation of the Steering Labor of Tractor Operator
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çã,åæã«æèµäžã«ããããšãã«ã®æ¶è²»éãç¥ãããã«,ãªãã¬ãŒã¿ã®åŒæ°ãæ¡åã,ãŸãå¿ææ°,åŒåžæ°ãé éèšé²ãã. 1.ãªãã¬ãŒã¿ã®å¿ææ°,åŒåžæ°ã¯æèµã®éå§ãšãšãã«æ¥ã«å¢å ããã,ãã®åŸã®å¢å å²åã¯å°ãªããªã. æèµä»äºã®åŒ·ãããããããšãã«ã®ä»£è¬çïŒR.M.RïŒã¯ãã©ã¯ã¿ã®é床ã倧ãããªããšå¢å ã,ãŸãå¿ææ°,åŒåžæ°ã®å¢å å²åãšãæ¯äŸé¢ä¿ã«ãã. 2.ãã©ã¯ã¿ãæèµããã«èŠãããªãã¬ãŒã¿ã®ä»äºéãš,ãªãã¬ãŒã¿ã®åŒåžã«ããæ¶è²»ãšãã«ã®ãšã®æ¯ããªãã¬ãŒã¿ã®æèµä»äºã®å¹çãšãããš,ãã®å¹çã¯æèµä»äºã®åŒ·ãïŒR.M.RïŒãšã»ãŒæ¯äŸé¢ä¿ã«ãã. 3.ãã©ã¯ã¿ã®æèµä»äºã®ç¹æ§ãç¥ãæ¹æ³ãšããŠæ¬¡ã®ããšãããããã. 1ïŒå€åä¿æ°,çžé¢ä¿æ°,æšæºåå·®ãæ±ããŠ,æèµã®æ¹åã«ãããã°ãã€ãããè¡šçŸãã. 2ïŒæèµéŠ¬åã®èªå·±çžé¢ä¿æ°ãæ±ããŠ,ã¹ã©ããŒã æåâãããéã®æéçå€åãå³ç€ºãããš,ãã®çžé¢åºŠã®å€§ãããš,æéçå€åã«ãã£ãŠ,ãã©ã¯ã¿ã®é床,ãªãã¬ãŒã¿ã®æèµã®å·®ç°ãç¥ãããšãå¯èœã§ãã. 3ïŒæèµãã«ã¯,æèµè§å€åã調å解æã,ããŒãªãšä¿æ°ãæ±ããŠ,ãã®æ¯å·Ÿ,äœçžè§ã«ãã£ãŠ,æèµç¹æ§ãè¡šçŸã§ãã
On the Steering Labor of Tractor Operator(II) : Steering Force During Regular Circular Turn
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ãã¹ãã®æ¹åã«å¢å ã,ä¿èµåã挞å¢ãã. 1.æåé床ã倧ãããªããšä¿èµåã¯å¢å ã,ãŸãæ±å¿å é床ã®å¢å ã«æ¯äŸããŠä¿èµåã¯å¢ã. 3.ãªãã¬ãŒã¿ãä¿èµã®ããã«å¿
èŠãšããä»äºéïŒïŒå¹³åä¿èµåÃäœæ¥æéïŒã¯,æåååŸã®å¢å€§ãšãšãã«æŒžå¢ããã,ãšãã«æ¥æåæã«ä¿èµåã倧ãããªããã©ã¯ã¿ã§ã¯æåååŸã®å¢å ãšãšãã«æŒžæžããããšããã. ãã©ã¯ã¿ã®å¶åæåã®å Žå 4.æåååŸæ¯ïŒïŒå¶åæåååŸïŒéåžžæåååŸïŒã¯éåžžæåååŸãå°ãããªãã»ã©å€§ããå€ãšãªã,å¶åã«ããæ¥æåããããšããå¹æã¯å°ãªããªã. 5.éåžžæåã«ãããä¿èµåã¯,éåžžã«å€åãã«åãã®ã«å¯ŸããŠ,å¶åæåã®ä¿èµåã¯å€åãã«åãåã軜æžãããã,éã«å
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Vibration Characteristics of Multi-Wheel Off-Road Vehicles
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On the Steering Labor of Tractor Operator(I) : Steering force during transport and field operation
1.ãã©ã¯ã¿ã®ã¢ã¹ãã¡ã«ãè·¯é¢èµ°è¡ããã³çå°ããŒã¿ãªèã«ãããæèµåã®ç¹æ§ãç¥ããã,ãã©ã¯ã¿ã®å茪è·é,äœæ¥é床ããã³ãªãã¬ãŒã¿ã®è«žæ¡ä»¶ããã,äœæ¥äžã®ãã©ã¯ã¿ã®æšªå€äœ,å®èµè§,æèµè§ããã³æèµåã枬å®ãã. 2.ãã³ãã«ã«ãããåãšãã®çŽ¯ç©é »åºŠæ°ãšã®éã«ã¯æ²ç·çé¢ä¿ããã,ãã³ãã«ã«ãããå°ããåã®é »åºŠã¯äžè¬ã«å€ã. å茪è·éã軜ãããå Žå,ãã³ãã«æèµã®èµ°è¡ã§ã¯éã«ãã³ãã«ã«ãããåãå°ãã,环ç©é »åºŠæ°ã¯å€ããªã. ãŸã,äœæ¥é床,ãªãã¬ãŒã¿ã«ãã£ãŠåœ±é¿ãããã. ããŒã¿ãªèã«ãããŠã¯ã¢ã¹ãã¡ã«ã路走è¡ã«æ¯ããŠãã³ãã«ã«ãããåããã³çŽ¯ç©é »åºŠã¯å¢å ã,3åè¿ãã«ãªã. 3.ãã³ãã«ã«ãããåãšãã³ãã«å転è§é床ããæ±ããæèµéŠ¬åãšçžå¯Ÿé »åºŠãšã®éã«ã¯åæ²ç·çé¢ä¿ããã,æèµéŠ¬åã®å€§ãããšãã®è·¯é¢èµ°è¡ã®å Žåãšæ¯ããŠ6åè¿ã. 4.åäœæéåœãã®æèµã«èŠããä»äºéã¯ãã©ã¯ã¿ã®å茪è·éã軜ããšã,äœæ¥é床ãäœããšãã«å°ãªããªã. äœæ¥é床ãå€åããŠãåäœæéåœãã®æèµã«èŠããä»äºéã¯åãçšåºŠãšãªã. ããŒã¿ãªèã§ã®åäœèããè·é¢åœãã®ä»äºéã¯èµ°è¡æã®ãããšæ¯ããŠ30ïœ40åè¿ã
Can sufficient preoperative information of intracranial aneurysms be obtained by using 320-row detector CT angiography alone?
Abstract Purpose To determine whether sufficient pre-surgical treatment information of unruptured intracranial aneurysms can be obtained by using 320-row detector CT angiography (CTA) alone. Materials and methods We enrolled 40 consecutive patients with unruptured intracranial aneurysms. All patients were prospectively conducted to perform 320-detector CTA as the only preoperative modality. Two blinded readers independently assessed CTA images. Interobserver agreement and the agreement between CTA and surgical findings were determined by calculating the j coefficient. The referring neurosurgeons judged the usefulness of the information provided by CTA for treatment decisions. Results All patients had surgery without intraarterial digital subtraction angiography. Agreement between CTA and surgical findings was excellent for the aneurysm location (j = 1.0) and good for the shape (j = 0.71), neck (j = 0.74) and its relationship with adjacent branches (j = 0.71). Information obtained with 320-detector CTA was highly useful for surgical treatment in 37 of 40 (93 %) patients, although small perforators deriving from the aneurysm in 2 cases were not fully visualized on CTA images. Conclusion In most patients with unruptured intracranial aneurysms, sufficient pre-surgical treatment information can be obtained by using 320-detector CTA alone